WorldWideScience

Sample records for seibutsukei kaiseki gijutsu

  1. FY 1997 R/D project of industrial and scientific technologies contracted with NEDO. Report on technology development of utilization of biological resources such as bioconsortia (development of analytical techniques of bioconsortia); 1997 nendo sangyo gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu (fukugo seibutsukei kaiseki gijutsu no kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Bioconsortia are microbial composites composing of more than two kinds of microorganisms with special functions. To utilize their advanced functions, some techniques have been developed for analyzing their functions and interactions, and for identification, separation and incubation of the constituent microbial groups. In FY 1997, an investigation was made on technology trends, domestic researchers, and research topics related to bioconsortia. To manage and promote the progress of research at the National Institute of Bioscience and Human-Technology where the centralized management of this project is conducted, meetings are held once a month to examine the progress at the institute, in which reports are made and discussions are held on how each research item is progressing. In addition, meetings of the committee to promote research are held every other month to consider and examine measures required for promoting the research. Re-entrustment of research has been made on two subjects, i.e., `Studies on biological significance of symbiotic microorganisms` by Prof. Ishikawa of the University of Tokyo, and `Study on the relationship between the biosynthesis of useful terpenic materials of plant origin and the differentiation of plant tissues, and their effective production by plant cell cultures` by Prof. Inoue of Gifu Pharmaceutical University. 27 refs., 13 figs., 1 tab.

  2. Achievement report for fiscal 1997 on the development of technologies for utilizing biological resources such as complex biosystems. Development of complex biosystem analyzing technology; 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei kaiseki gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The aim is to utilize the sophisticated functions of complex biosystems. In the research and development of technologies for effectively utilizing unexploited resources and substances such as seeweeds and algae, seaweeds are added to seawater to turn into a microbial suspension after the passage of two weeks, the suspension is next scattered on a carageenan culture medium, and then carageenan decomposing microbes are obtained. In the research and development of technologies for utilizing microbe/fauna-flora complex systems, technologies for exploring and analyzing microbes are studied. For this purpose, 48 kinds of sponges and 300 kinds of bacteria symbiotic with the sponges are sampled in Malaysia. Out of them, 15 exhibit enzyme inhibition and Artemia salina lethality activities. In the development of technologies for analyzing the functions of microbes engaged in the production of useful resources and substances for animals and plants, 150 kinds of micro-algae are subjected to screening using protease and chitinase inhibiting activities as the indexes, and it is found that an extract of Isochrysis galbana displays an intense inhibitory activity. The alga is cultured in quantities, the active component is isolated from 20g of dried alga, and its constitution is determined. (NEDO)

  3. FY 1998 report on the results of the development of the utilization technology of biological resources such as bioconsortia. Development of the consortium based analysis technology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei kaiseki gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of establishing the analysis technology and industrial utilization technology required for the establishment of the utilization technology of consortia's high functions which are already used in the fermentation technology field over the limit of the conventional bio-technology using functions of single biological species, study was made to look for the consortium based analysis technology by which the consortium base can be analyzed as it is using the molecular biological method. Studies were made in the following four fields: 1) new identification technology of eucaryote using II DNA topoisomerase genes (PCR amplification method of II DNA topoisomerase genes); 2) method to detect new recognition peptide activated microorganism (adjustment of cortical antigen); 3) technology to elucidate detection/response mechanism of the specific environment and adaptation/resistance mechanism of the specific environment; 4) incubation method inside 3D matrices. In 3), studies were made of the analysis of inhibition mechanism of korormicin and separation of solvent-resistant oil degradable bacteria. In 4), for the settlement and dynamic analysis of microorganism consortium by studying incubation conditions, conducted was the molecular system analysis of bacteria and eumycetes inhabiting in sponge. (NEDO)

  4. Fiscal 1998 R and D project on industrial technology. Development report on use technology of bioresources such as bioconsortia (Development of analysis technology of bioconsortia); 1998 nendo sangyo gijutsu kenkyu kaihatsu jigyo. Fukugo seibutsukeinado seibutsu shigen riyo gijutsu kaihatsu (fukugo seibutsukei kaiseki gijutsu no kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    For use of advanced functions of bioconsortia (complex microorganisms composed of more than 2 microorganisms with certain specific function), this project analyzes specific functions of specific organisms and the interaction between the specific functions, and develops isolation and incubation technologies of component organisms. In fiscal 1998, to promote this project, the meetings were held frequently in National Institute of Bioscience and human Technology. Study was made on production of useful substances and useful degradation functions in association with bioconsortia. The result showed that microorganisms coexisting with nematode produced physiologically active substances exhibiting antimicrobial activities to tubercle bacillus, MRSA and others, microorganisms coexisting in eggs of some insects produced substances having antiviral activities and activities against pathogenic bacteria in a plant, and microorganisms growing in some plants or mycorrhiza organisms produced insecticidal substances or growing-promoting substance. The basic understanding was obtained on cooperative actions of bioconsortia to bioremediation and degradation of organic substances. (NEDO)

  5. Application of FEM flow analysis to environmental engineering. FEM ryutai kaiseki no kankyo gijutsu eno tekiyo

    Energy Technology Data Exchange (ETDEWEB)

    Higuchi, M; Ando, K; Shimada, S; Umetani, H [Toyota Motor Corp., Aichi (Japan)

    1990-04-25

    In order to apply FEM (finite element method) flow analysis to environmental engineering, the two-dimensional analysis system was developed, and applied to the design of plant ventilation and improvement of an enviromental control equipment. Furthermore, the three-dimensional analysis system was developed to extend its application. Since in a large scale model, no enhancement of a processing capacity was expected even by a supercomputer because of longer I/O times between internal and external memories caused by a small internal memory space, the parallel processing system with multiple external memories was introduced to analyze such models. To achieve more efficient processing, multiple series of renumbering codes were also prepared to optimize the processing order of solvers, elements and nodes. As examples, the improvement of a thermal oxidizer and the ventilation design for a forging plant, and as an example of a three-dimensional large scale model, the flow analysis around a plant were presented. 8 refs., 17 figs., 1 tab.

  6. FY 1999 report on the results of the project on the industrial science technology R and D. Development of utilization technology of biological resources such as bioconsortium system (Development of the bioconsortium system utilization/production technology); 1999 nendo sangyo gijutsu kenkyu kaihatsu jigyo. Fukugou seibutsukei tou seibutsu shigen riyo gijutsu kaihatsu (Fukugou seibutsukei riyo seisan gijutsu no kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of developing the functional substance production technology, petroleum degrading/cleaning technology and high-grade utilization technology of the unused petroleum fraction, study was conducted of the culture control technology in substance production and substance decomposition by bioconsortia, and the FY 1999 results were reported. As to the functional material production technology, study was made of the separation/culture technology, functional substance production technology using bioconsortia (control substance searching method in the ocean microbial consortia system, isolation of control substance/structure determination/separation of production bacteria, elucidation of the inter-species communication substance function, heightening of function of the production microbial consortia), etc. Concerning the effective degrading/cleaning technology of petroleum compounds, study was made of the molecular genetic analysis technology, histochemical analysis technology, analysis technology of the solvent resistance mechanism, bioconsortia analysis system technology, global environmental purification technology such as the effective decomposition of environmental pollutants, etc. Relating to the high-grade utilization technology of the unused petroleum fraction, study was made of the chemical analysis of the photolysis crude oil, selection of the decomposition microbial consortia, etc. (NEDO)

  7. Fiscal 1997 industrial technology R and D project. Research report on development of use technology of bio- resources such as complex biosystem (Development of use and production technologies of complex biosystems); 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This project aims to establish production technology of functional substances, oil degradation and purification technology, and use technology of unused oil fraction through development of cultivation control technology of complex biosystems. For functional material production technology, as functional substances some specific marine bacteria inhibitors, antibreeding substances of microalgae, and UV absorption substances were isolated. The productivity of korormicin as specific inhibitor against marine bacteria was improved considerably by cultivation method. For research on molecular genetic analysis technology, a new identification technology and a simple automatic analysis system of microeucaryotes using genes were developed. For global environment purification technology such as efficient degradation of pollutants, study was made on cultivation control technology of phenol- degrading consortia, population dynamics of oil-degrading microbial consortia and a restoration method of oil pollution by complex biosystem at lower temperature, and the demonstration experiment of oil degradation were carried out. (NEDO)

  8. Fiscal 1997 research report on development of use technology of bio-resources such as complex biosystem (Development of use and production technologies of complex biosystems); 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho (fukugo seibutsukei riyo seisan gijutsu no kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This report summarizes the fiscal 1997 research results on production technology of functional materials, and the research study result for utilizing substance production and decomposition by complex biosystem for industries. For detecting technique of microorganisms in soil, staining by CFDA-AM was suitable, and allowed visualization of sulfate- reducing bacteria during culture. For research on functional analysis technology, study was made on atomic force microscope technology to detect microorganisms in environment and observe their fine structures. For research on detection, separation and cultivation technology of difficult-to-culture microorganisms, a molecular genetic analysis method of microbial communities and a determination method of their viability were selected. For functional substance production technology, study was made on technical utilization of bioflocculant produced by microbial consortia as environment-friendly oil removal reagent, and on gene transfer control in microbial consortia. For the research study for the project, survey was made on useful substances produced by complex biosystem. (NEDO)

  9. Report on achievements in fiscal 1999. Development of technology to utilize biological resources such as composite organism systems (development of technology to utilize and produce composite organism systems); 1999 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    It is intended to achieve the following objectives in terms of the technologies to utilize such functions as material production and material decomposition by using composite organism systems: develop a technology to handle the composite organism systems; establish a composite microorganism cultivation control technology, and a composite microorganism system function strengthening technology; develop a technology to separate and cultivate organism groups constituting them, and develop industrial utilization technologies. The fiscal 1999 has discussed developing the elementary technologies for the technology to utilize functions of the composite organism systems on the following research items: 1. a functional material production technology; and 2. comprehensive investigations and researches. In Item 1, development was made on a technology to detect, separate and cultivate microorganisms in soil as the histochemical analytical technology. Development was made on an in situ detection, separation and function analyzing technology for particular composite microorganisms as the function analyzing technology. In the separation and cultivation technology, development was made on a technology to detect, separate and cultivate difficult-to-cultivate microorganisms. In the functional material production technology, development was made on a technology to utilize microbial consortia producing environmentally harmonizing oil-water separating polymers, and a method to execute artificially the gene exchange in the microbial consortia. (NEDO)

  10. FY 1998 report on the results of the development of utilization technology of biological resources such as bioconsortia. Development of the bioconsortia system utilization/production technology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of developing the industrial utilization technology, analysis was made of functions and interactions of the specified functional biological groups, and at the same time the developmental study was made of the technology to isolate/culture the constitutive biological groups. The FY 1998 results were summed up. As to the technology to detect microorganisms in soil, the SFDA method was improved and the new dyeing method was developed. And, there almost was hope for the development. Concerning the functional analysis technology, the functional substances peculiarly manifested only in the complex system in the ocean environment are searched. Several kinds of compounds were found out, and at the same time the test to confirm the biological activity is under way. Relating to the isolation/culture technology, study was made on rotten fruit, and the existence in the sample of the microorganisms which are difficult in isolation/culture was newly confirmed. In regard to the culture of the microorganisms which are difficult in isolation/culture, availability of the replica method was found out. As to the technology to produce functional substances, studies were made on the following: utilization technology of the environmental harmony type oil/water separation polymer producing microbial consortia, method to artificially make gene exchanges in the microbial consortia, etc. (NEDO)

  11. FY 1998 report on the results of the development of utilization technology of biological resources such as bioconsortia. Development of the bioconsortia system utilization/production technology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of establishing the technology to use high grade functions of the bioconsortia system, the R and D were conducted, and the FY 1998 results were summed up. As to the study of functional material producing technology, screening of the 2400 strains owned by Marine Biotechnology Institute was conducted using reporter strain, and about 400 strains of homoserine lactone producing bacteria which are interbiological information convey substances were obtained. Concerning the effective decomposing/purifying technology of petroleum products, study of petroleum decomposition analysis technology was finished in the development of culture/control technology of petroleum decomposition microbial consortia constitutive bacteria. Relating to the analysis of the petroleum decomposition microbial consortia, changes in the bacteria population at the site of the heavy oil pollution accident on the Sea of Japan were investigated for the past one year by the PCR/DGGE method. It was found out that levels of the oil pollution in ocean could be assessed by measuring the concentration of Alcanivorax. As to the technology for highly utilizing unused petroleum fractions, conducted were the chemical analysis of photolytic crude oil, selection of the decomposition microbial consortia, etc. (NEDO)

  12. Technological development for super-high efficiency solar cells. Survey on the commercialization on analysis; Chokokoritsu taiyo denchi no gijutsu kaihatsu. Jitsuyoka kaiseki ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

    1994-12-01

    This paper reports the survey results on analysis of super-high efficiency solar cells for practical use in fiscal 1994. (1) On the survey on crystalline compound solar cells, it was pointed out that the present study target is III-V compound semiconductor solar cell, and efficiencies of 36-39% are theoretically expected by use of two-junction cells. (2) On structure of super-high efficiency solar cells of 40%, selection of upper and lower cell materials for multi-junction cells, high-efficiency tandem Si solar cells, and the merit and possibility of light collection operation were surveyed, and their issues were discussed. (3) On physical properties of mixed crystalline semiconductors and characteristic evaluation of solar cells, impurities, trap center, minority carrier life, and applicability of supper lattice structure to high-efficiency solar cells were surveyed. (4) On fabrication technology of compound semiconductor solar cells, various problems of and approaches to electrode formation and antireflection film technologies, the meaning and issues of thin film substrate technology and continuous process, trial calculation of costs, safety, and resource problem were surveyed.

  13. Numerical analysis of exhaust gas flow during the gas exchange process and the design optimization; Haiki manihorudonai no hiteijo nagare kaiseki gijutsu to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Yoshizawa, K; Takeyama, S; Sakai, E; Tanzawa, K [Nissan Motor Co. Ltd., Tokyo (Japan)

    1997-10-01

    A simulation method was developed to estimate exhaust gas flow during the gas exchange process. In this simulation, one dimensional in-cylinder gas flow calculation and three dimensional exhaust gas flow calculation were combined. Gas flow inside the exhaust manifold catalyst during gas exchange was agreed in experiments. A simulation method was applied to select oxygen sensor location. A prediction of the oxygen sensor sensitivity of each cylinder gas was presented. The possibility of selecting oxygen sensor location in the exhaust manifold using calculation was proved. 5 refs., 10 figs., 1 tab.

  14. FY 1998 R and D of utilization of biological resources such as those in bioconsortia. Report on development results of techniques for utilization/production of organisms in bioconsortia; 1998 nendo fukugo seibutsukeinado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The objectives are set to analyze functions and interactions of organisms having specific functions, to develop the techniques for isolating and cultivating the constituent organisms, and thereby to develop the techniques for their industrial utilization, in order to develop the techniques for handling organisms in bioconsortia as the techniques to utilize their functions, e.g., production and decomposition of materials, and also to develop the techniques for culturing/controlling microorganisms in bioconsortia and for strengthening their functions. The FY 1998 themes are development of the functional material production technology, and comprehensive study for the project. More concretely, the former includes histochemical analytical technology (development of techniques for detecting microorganisms in soil, and of techniques for in-situ detection/isolation of specific microorganisms in bioconsortia and for analysis their functions), isolation and culture technology (development of detection, separation and cultivation technology of microorganisms that are not easily cultured), functional substance production technology (technical utilization of microbial consortia for production of environment-friendly oil/water separation polymers), and functional material production technology (development of methods for artificial gene exchange in microbial consortia). (NEDO)

  15. Achievement report for fiscal 1997 on the development of technologies for utilizing biological resources such as complex biosystems. Development of technologies for producing substitute fuel for petroleum by utilizing organisms; 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Technologies of producing useful substances using the substance decomposing/producing functions of complex biosystems and methods of their handling are developed. In the utilization of microbes in the digestive tracts of termites and longicorns, it is made clear that several kinds of termites cleave the {beta}-O-4 ether linkage. In relation to technologies for wood decomposing complex microbial system construction and complex vector system development, a screening system is constructed in which strains that exhibit complex actions are combined. Concerning the advanced utilization of tropical oil plants, conditions are determined for inducing callus out of oil palm tissues. Out of oil palm sarcocarp tissues, mRNA (messenger ribonucleic acid) is isolated for the construction of a cDNA (complementary deoxyribonucleic acid) library. For the purpose of isolating a powerful promoter, a partial base sequence is determined for ubiquitin that frequently expresses itself in cells. A pathogenic bacterium ailing the oil palm is sampled for identification, and it is inferred that the bacterium is a kind of Ganoderma boninense. (NEDO)

  16. FY 1997 report on the results of the industrial technology R and D project. Development of technology to use biological resources such as the complex biological system (Development of biological use petroleum substitution fuel production technology); 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Experimental researches were conducted and the FY 1997 results were reported with the aim of establishing analytical technology for the complex biological system by which the complex biological system can be analyzed in such a state as it is using the molecular biological method. In the study of the molecular genetic analytical technology, PCR primers used for amplification of topoisomerase II genes of the whole eukaryote was designed. As to the histochemical analytical technology, a study was made on the new constitution microorganism detection method by the hybridization method and the antibody specific dyeing method, and the following were conducted: manifestation in quantity of colibacillus and the recovery, refining, and construction of peptide library by fuzzy display method. Concerning the functional analytical technology, technological researches were made such as the environmental adaptation mechanism of high thermophile and the information transfer mechanism among bacteria through cell membranes for elucidation of the special environment detection/response mechanism and the special environment adaptation/resistance mechanism. As to the separation/culture technology, various anaerobic microorganisms were separated from marine sponge for the development of a method of culturing in 3D matrices. (NEDO)

  17. FY 1998 report on the results of the development of the utilization technology of biological resources such as bioconsortia. Development of the petroleum substituting fuel production technology using biology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of establishing the analysis technology and industrial utilization technology required for the establishment of the utilization technology of consortia's high functions which are already used in the fermentation technology field over the limit of the conventional bio-technology using functions of single biological species, study was made. As a part of the study, the establishment was aimed at of the high-grade utilization technology of seaweed/algae using the degradation/conversion functions of the consortium base and the useful substance production technology by interaction of the consortium base of organism and flora/fauna. Studies for the establishment of the technology were made in the following two fields: technology to use unused resources such as lignocellulose and technology to produce petroleum substituting useful resources. As to the technology to use unused resources, the establishment was proceeded with of the technology to degrade/convert the seaweed-origin acidic polysaccharide into the useful substance using the consortium system. In FY 1998, in search of the excellent microorganism consortia which can degrade/solubilize carageenan, samples were picked up from the underwater of the Republic of Palau and incubated in the flat culture medium. Thirty-eight kinds of the degraded bacterium group were acquired. Using the degraded bacterium group, {kappa}-carrageenan was degraded and analyzed of the products. (NEDO)

  18. FY 1998 report on the results of the development of the utilization technology of biological resources such as bioconsortia. Development of the petroleum substituting fuel production technology using biology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of establishing the analysis technology and industrial utilization technology required for the establishment of the utilization technology of consortia's high functions which are already used in the fermentation technology field over the limit of the conventional bio-technology using functions of single biological species, study was made. As a part of the study, the establishment was aimed at of the high-grade utilization technology of seaweed/algae using the degradation/conversion functions of the consortium base and the useful substance production technology by interaction of the consortium base of organism and flora/fauna. Studies for the establishment of the technology were made in the following two fields: technology to use unused resources such as lignocellulose and technology to produce petroleum substituting useful resources. As to the technology to use unused resources, the establishment was proceeded with of the technology to degrade/convert the seaweed-origin acidic polysaccharide into the useful substance using the consortium system. In FY 1998, in search of the excellent microorganism consortia which can degrade/solubilize carageenan, samples were picked up from the underwater of the Republic of Palau and incubated in the flat culture medium. Thirty-eight kinds of the degraded bacterium group were acquired. Using the degraded bacterium group, {kappa}-carrageenan was degraded and analyzed of the products. (NEDO)

  19. Analysis and evaluation for practical application of photovoltaic power generation system. Analysis and evaluation for thin substrate polycrystalline solar cells (compound semiconductors and their fabrication technologies); Taiyoko hatsuden system jitsuyoka no tame no kaiseki hyoka. Usumaku taiyo denchi jitsuyoka no tame no kaiseki hyoka (kagobutsu taiyo denchi zairyo oyobi seisaku gijutsu no kaiseki hyoka)

    Energy Technology Data Exchange (ETDEWEB)

    Oyagi, H; Okada, Y; Yamaguchi, H; Shiota, T; Kuroda, S; Igarashi, O; Tanino, H; Makita, Y; Yamada, A; Kimura, S; Ohara, A; Niki, S; Shibata, H; Fons, P [Electrotechnical Laboratory, Tsukuba (Japan)

    1994-12-01

    Described herein are the results of the FY1994 research program for analysis and evaluation for thin-film compound semiconductor solar cells. The study on epitaxial growth and optical properties of the thin films of CuInSe2 and CuGaSe2 evaluates the thin epitaxial films grown under various conditions, showing morphology of the defects at the interface of heteroepitaxial growth. These results are used to set the growth conditions under which a thin film of high luminescence by exciter recombination is produced. The study also gives information of luminescence transition in the vicinity of the band ends and of energy level between the bands. The study on structural analysis of the epitaxially grown thin films of CuInSe2 investigates dependence of lattice constants of the MBE-grown CIS layer on film thickness by the X-ray diffractometry based on the bond method. The study on epitaxial growth by the Se(CH3)2-halogen transfer method tests epitaxial growth of the single-crystalline Mo on a substrate of single-crystalline sapphire. 5 figs.

  20. Analysis and evaluation for practical application of photovoltaic power generation system. Analysis and evaluation for development of extra-high efficiency solar cells (fundamental research on extra-high efficiency Si solar cells); Taiyoko hatsuden system jitsuyoka no tame no kaiseki hyoka. Chokokoritsu taiyo denchi no gijutsu kaihatsu no tame no kaiseki hyoka (chokokoritsu silicon taiyo denchi gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    Sekikawa, T; Suzuki, E; Ishikawa, K; Takato, H; Yui, N; Shimokawa, R [Electrotechnical Laboratory, Tsukuba (Japan)

    1994-12-01

    Described herein are the results of the FY1994 research program for analysis and evaluation for development of extra-high efficiency silicon solar cells. It is necessary for development of extra-high efficiency Si solar cells to extend as far as possible service life of minority carriers and to develop the evaluation techniques. Noting photoluminescence (PL) observable even with Si, the method of evaluating characteristics of minority carriers, which are not limited in samples, is developed to experimentally determine their service life from transitional response of the PL characteristics. Si has an extremely low quantum effect, because it is an indirect transitional semiconductor, and needs measurement of very high sensitivity. A rapid heat annealing apparatus and others to generate carriers in the infrared and ultraviolet regions are provided in consideration that these are possible means to increase efficiency. These possibilities will be pursued by developing the annealing techniques. 1 fig.

  1. FY 1999 report on the results of the project on the industrial science technology R and D. Development of utilization technology of biological resources such as bioconsortium system (Development of the petroleum substituting fuel production technology using living organisms); 1999 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo. Fukugou seibutsukei tou seibutsu shigen riyo gijutsu kaihatsu (Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of establishing the high-grade utilization technology of unused seaweed/algae and production technology of useful substances using high-grade functions of bioconsortia, study was conducted, and the FY 1999 results were reported. In the analysis of the ocean environment adaptation mechanism, the R and D were made of a selection method of the marine microbial consortia using korormicin. In the study of the high-grade utilization technology of unused resources/substances such as marine-producing algae, several tens of the carrageenase producing microbial consortia were acquired from the surface of seaweed, and some carrageenase producing bacteria and non-producing bacteria were acquired by isolating as pure strains. In the study of the petroleum substituting useful resource production technology, developed was a monitoring system of the environmental stress using marine-product invertebrate/micro-algae symbiotic system. In the study of the high-grade utilization of large useful algae, elucidation of the related genes, fabrication of variants and analysis of genes were carried out for the bacterium BUP-7 which indicates activity of growth acceleration/shape formation of seaweed. (NEDO)

  2. FY 1999 report on the results of the project on the industrial science technology R and D. Development of utilization technology of biological resources such as bioconsortium system (Development of the petroleum substituting fuel production technology using living organisms); 1999 nendo sangyo gijutsu kenkyu kaihatsu jigyo. Fukugou seibutsukei tou seibutsu shigen riyo gijutsu kaihatsu (Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of developing the technology for producing and degrading useful substances using bioconsortia, study was made of the handling technology of bioconsortia, the basic element technology, etc., and the FY 1999 results were reported. In the study of the high-grade utilization technology of lignocellulose/the components, an sample was obtained in which the effect of the bacteria culture supernatant treatment was recognized in the biobleaching by co-treatment of the bacteria culture filtrate - MnP. As to the search for control factor of lignin degrading enzyme and the utilization technology, it was found out that bisphenol A was efficiently degraded by a combination of laccase and mediator production bacteria. Concerning the utilization technology of plant symbiotic bacteria, classification/identification have been finished of approximately 60% of the stored bacteria. In the study of the production technology of the petroleum substituting useful resource, a system was constructed in which immature embryos were used for callus induction and regeneration of plantlets, and plants were regenerated at high frequency via the formation of adventitious embryos. By this, the culture cell with high propagation ability was obtained. (NEDO)

  3. Fiscal 2000 regional consortium research and development project - regional new technology creation research and development. Development of bio-recycling technology for bio-wastes; 2000 nendo chiiki consortium kenkyu kaihatsu jigyo - chiiki shingijutsu soshutsu kenkyu kaihatsu seika hokokusho. Seibutsukei haikibutsu no bio recycle gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Efforts are exerted to develop a closed brewing system for 'shochu (a Japanese distilled liquor)' and vinegar and a non-combustion type thermal recycling system based on the methane fermentation of farm animal's excretion and sludge. Activities are conducted in the three fields of (1) the development of a zero emission shochu and vinegar brewing process, (2) development of a non-combustion type thermal recycling method, and (3) a commercialization plan. Studied in field (1) are the brewing of 'shochu' by a new process (kaeshi-shikomi), preparation of vinegar out of the lees of 'shochu' brewing, evaluation of the physiological activity of vinegar and 'shochu' lees, cost efficiency evaluation of zero emission 'shochu' and vinegar brewing processes, and the like. In field (2), the methane fermentation conditions for garbage, sludge, and farm animals' excretion are studied, and a non-combustion type thermal recycling process and the like are evaluated for cost efficiency. In field (3), marketability is studied for vinegar made by fermentation, actualities of the recycling of bio-wastes and energy recovery therefrom are examined, and marketability is studied for regional distributed power generation. (NEDO)

  4. Fiscal 2000 regional consortium research and development project - regional new technology creation research and development. Development of bio-recycling technology for bio-wastes; 2000 nendo chiiki consortium kenkyu kaihatsu jigyo - chiiki shingijutsu soshutsu kenkyu kaihatsu seika hokokusho. Seibutsukei haikibutsu no bio recycle gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Efforts are exerted to develop a closed brewing system for 'shochu (a Japanese distilled liquor)' and vinegar and a non-combustion type thermal recycling system based on the methane fermentation of farm animal's excretion and sludge. Activities are conducted in the three fields of (1) the development of a zero emission shochu and vinegar brewing process, (2) development of a non-combustion type thermal recycling method, and (3) a commercialization plan. Studied in field (1) are the brewing of 'shochu' by a new process (kaeshi-shikomi), preparation of vinegar out of the lees of 'shochu' brewing, evaluation of the physiological activity of vinegar and 'shochu' lees, cost efficiency evaluation of zero emission 'shochu' and vinegar brewing processes, and the like. In field (2), the methane fermentation conditions for garbage, sludge, and farm animals' excretion are studied, and a non-combustion type thermal recycling process and the like are evaluated for cost efficiency. In field (3), marketability is studied for vinegar made by fermentation, actualities of the recycling of bio-wastes and energy recovery therefrom are examined, and marketability is studied for regional distributed power generation. (NEDO)

  5. Fiscal 1998 industrial science and technology R and D project. Research report on R and D of genome informatics technology (Development of stable oil supply measures using complex biosystem); 1998 nendo genome informatics gijutsu kenkyu kaihtsu seika hokokusho. Fukugo seibutsukei riyo sekiyu antei kyokyu taisaku kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This report describes the fiscal 1998 result on development of genome informatics technology. As comparative analysis technique of genes, the combination of electrophoresis and PCR was used. For improvement of the throughput and reproducibility of the technique, module- shuffling primers were used, and the multi(96)-arrayed capillary fragment analyzer was devised. The system detecting SNPs rapidly was also developed successfully. As analysis technology of DNA sequence by use of triple- stranded DNA formation, study was made on construction of long cDNA libraries, selective subtraction of specific sequences from libraries, and the basic technology of homologous cloning. Study was also made on each reaction step of IGCR technique for fast analysis, and specifications of a fluorescence transfer monitor. As modeling technique of genetic sequence information, the simulation model was developed for gene expression regulatory networks during muscle differentiation, and feedback regulation of period genes. Such support systems as transcription factor prediction and gene regulatory network inference were developed from existing data. (NEDO)

  6. FY 1999 report on the results of the R and D of genom informatics technology. Development of measures for stabilized supply of petroleum using compound living organisms; 1999 nendo genom informatics gijutsu kenkyu kaihtsu seika hokokusho. Fukugo seibutsukei riyo sekiyu antei kyokyu taisaku kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In this R and D, studies were made on the following: 1) comparative analysis of genes - a system based on PCR coupled with high-speed and high-throughput fragment analyzer; 2) development of the system which detects SNPs rapidly; 3) study of the technique for DNA analysis and comparison of DNA sequence by use of the triple-stranded DNA formation; 4) improvement of a genomic DNA subtraction method, the In-Gel Competitive Reassociation technique; 5) development of computer simulation system which has capability of predicting changes in gene expression; 6) development of a workbench system assisting at gene regulatory network construction; 7) analysis of a gene expression control network; 8) general R and D issues. In 1), PCR method was developed to confirm the principle. In 2), micro plant was developed. In 3), new long cDNA library was constructed. In 4), basic experiment on FRET technology was conducted. In 5), basic model was developed of clock gene expression oscillation simulation. In 6), system was developed of gene information subtraction. In 7), workbench was designed for support of transcription control network analysis. (NEDO)

  7. Development of technology for thin substrate polycrystalline solar cells for practical use. Survey on analysis for practical use; Usugata takessho taiyo denchi seizo gijutsu no jitsuyoka kenkyu. Jitsuyoka kaiseki ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

    1994-12-01

    This paper reports the survey results on the manufacturing technology trend of thin substrate solar cells for practical use in fiscal 1994. In production of Si raw material, as electron beam melting and ingot production are combined, C, P, Ca and Al are removed by evaporation, while Fe and Ti by solidifying segregation. As the basic technology of continuous casting for substrate production, a drop coagulation method for Si melt is under investigation which is more advantageous in unidirectional solidification and cell conversion efficiency than conventional methods. The cost and future of single crystal Si and polycrystal Si were compared on the basis of document survey. Every institute commonly uses FZ substrates to produce single crystal Si cells, and SiO2 for surface passivation. New cell structure, hetero-structure, thin cell, crystalline defect and lifetime are under investigation for ultrahigh-efficiency solar cells. The technology trend was also surveyed through academic societies and conferences. 5 tabs.

  8. Research on fabrication technology for thin film solar cells for practical use. Survey on the commercialization analysis; Usumaku taiyo denchi seizo gijutsu no jitsuyoka kenkyu. Jitsuyoka kaiseki ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

    1994-12-01

    This paper reports the survey results on the technological trend, safety and latest technologies of thin film solar cells in fiscal 1994. As the fabrication technology for amorphous film solar cells, three-electrode plasma CVD was surveyed as fabrication method for high-mobility materials, and hydrogen radical CVD as fabrication method for high-photostable films. Current foreign and domestic reliability tests were surveyed for reliability evaluation of solar cells. In order to ascertain the performance, efficiency, physical properties and optimum structure of polycrystalline Si thin film solar cells, previously reported test results on physical properties such as carrier concentration, carrier lifetime and mobility of films were surveyed together with device simulation results. In addition, technologies for high-efficiency CuInSe2 system and CdTe system solar cells, technologies for cost reduction and mass production, and environmental influence were surveyed. Estimation of production costs for cell modules, and safety of thin film solar cells were also surveyed.

  9. Analysis and evaluation for practical application of photovoltaic power generation system. Analysis and evaluation of peripheral technology for photovoltaic power system (analysis and evaluation on photovoltaic systems); Taiyoko hatsuden system jitsuyoka no tame no kaiseki hyoka. Shuhen gijutsu kaihatsu no tame no kaiseki hyoka (taiyoko hatsuden system shingata chikudenchi)

    Energy Technology Data Exchange (ETDEWEB)

    Kurokawa, K; Endo, E; Tsuda, I; Nakamura, K; Sugiyama, Y; Nakazawa, S; Takaku, K; Yanagisawa, T; Kojima, T; Shimizu, K; Koyanagi, T; Onda, N; Nozaki, K; Negishi, A; Kaneko, Y [Electrotechnical Laboratory, Tsukuba (Japan)

    1994-12-01

    Described herein are the results of the FY1994 research program for analysis and evaluation of new storage batteries for photovoltaic power systems. Quantitative analysis and evaluation are made for introduction of intermittent operational mode in the conventional power supply system in which electrolyte units are connected in parallel and for improved performance by bubbles flowing into the line that supplies the electrolyte to the stack, in order to establish the configurations of and operational procedures for the redox flow batteries. The study on development of redox battery compares the Pb-Sn alloy felt collector with carbon fiber, Pb-Sb alloy felt and the lattice for the conventional lead acid battery, in order to optimize the new lead felt battery. As a result, it is found that the Pb-Sn alloy felt collector is better than any other device tested, because of its higher freedom with respect to electrode shape and battery size. The study on reliability evaluation of amorphous solar cells tests photoelectric conversion efficiency of a-Si solar cells, in order to elucidate the phenomena where degradation and rejuvenation compete with each other under weak light irradiation conditions. 8 figs., 1 tab.

  10. Analysis and evaluation for practical application of photovoltaic power generation system. Analysis and evaluation for extra-high efficiency solar cells (research on new concentrator modules); Taiyoko hatsuden system jitsuyoka no tame no kaiseki hyoka. Chokokoritsu taiyo denchi no gijutsu kaihatsu no tame no kaiseki hyoka (shingata shuko module)

    Energy Technology Data Exchange (ETDEWEB)

    Tanimoto, J; Sakuta, K; Sawada, S; Yaoita, A [Electrotechnical Laboratory, Tsukuba (Japan)

    1994-12-01

    Described herein are the results of the FY1994 research program for analysis and evaluation of concentrator modules for extra-high efficiency solar cells. The outdoor exposure tests have been under way for 3 years for fluorescent plates, as part of the research program for development of materials and elementary techniques, and essentially no degradation has been observed by the perylene pigment test. Coupling of the fluorescent concentrator and solar cell units is investigated for the coupling position and method, to theoretically analyze geometrical coupling efficiency, where they are coupled at the bottom faces in consideration of easiness of module fabrication. It is demonstrated that a high coupling efficiency can be realized when the cell is sufficiently wide relative to thickness of the fluorescent plate. The coupling method is experimentally examined using transparent silicon gel. A prototype module having the same size as the commercial module (420mm by 960mm) is made on a trial basis, where a total of nine 20mm-thick cells are cut out of a single-crystalline silicon solar cell, 100mm by 100mm in size, and are connected to concentrators at the bottom faces. It shows 2.3 times increased output by the test using a large-area solar simulator. 2 figs.

  11. Analysis and evaluation for practical application of photovoltaic power generation system. Analysis and evaluation for development of extra-high efficiency solar cells (fundamental research on extra-high efficiency III-V compound semiconductor tandem solar cells); Taiyoko hatsuden system jitsuyoka no tame no kaiseki hyoka. Chokokoritsu taiyo denchi no gijutsu kaihatsu no tame no kaiseki hyoka (chokokoritsu III-V zoku kagobutsu taiyo denchi gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    Sekikawa, T; Kawanami, H; Sakata, I; Nagai, K; Matsumoto, K; Miki, K [Electrotechnical Laboratory, Tsukuba (Japan)

    1994-12-01

    Described herein are the results of the FY1994 research program for development of extra-high efficiency III-V compound semiconductor tandem solar cells. Heteroepitaxial structures of compound semiconductors, such as GaAs, on silicon substrates are analyzed and evaluated by EXAFS, Raman and RHEED for the initial stage of the film growth and heterointerfaces. The device capable of in-situ observation of the growing surface structures during the period of heteroepitaxial film growth is introduced, to investigate the effects of rise-up and initial growth conditions on defects. The effects of atomic hydrogen on growth of a GaAs film on a silicon substrate are investigated from photoluminescence and solar cell characteristics, to confirm the effects of reducing defects. Heteroepitaxial growth of InGaP, which has the optimum band width for forming multi-junction silicon solar cells, on a silicon substrate is investigated, to find that an interfacial buffer layer is necessary to form a good film. 2 figs.

  12. Fiscal 1997 R an D project on industrial science and technology under a consignment from NEDO. R and D of the ultimate manipulation technology of atoms and molecules (high-efficiency and analysis and manipulation technology for DNA); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo gijutsu Sogo Kaihatsu Kiko itaku. Genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho (DNA nado kokoritsu kaiseki sosa gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper describes R and D of the ultimate manipulation technology of atoms and molecules (atom technology). Through the observation of super spiral DNA fixed on a spermin or spermidine treated mica substrate by AFM (atomic force microscope), fixation of DNA without any deformation in solution was clarified, and visualization of the spiral structure of DNA were successfully achieved. Manipulation of Xe atoms adsorbed on an Si(111) surface was certainly possible by using STM (scanning tunneling microscope)/atom probe equipment. A nucleation mechanism in crystal growth was studied for various organic source-molecules/GaAs(001) surface systems, and formation of high-density nuclei on the GaAs surface was achieved by accelerating the translational energy of Ga material molecules up to 6eV or more. Ziegler- Natta catalysis important for industrial polymerization of olefin molecules was precisely analyzed by first-principle dynamic simulation. A large-scale simulation of zeolite catalyst is also in promotion for methanol to gasoline conversion. 51 refs., 87 figs., 7 tabs.

  13. Fiscal 2000 achievement report. Development of energy use rationalization-oriented silicon manufacturing process (Survey and study of analysis of commercialization of solar-grade silicon material manufacturing technology); 2000 nendo shin energy sangyo gijutsu sogo kaihatsu kiko kyodo kenkyu gyomu seika hokokusho. Energy shiyo gorika silicon seizo process kaihatsu (Taiyodenchiyou silicon genryo seizo gijutsu no jitsuyoka kaiseki ni kansuru chosa kenkyu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The trend of technology development, problems harbored therein, trend of the market, and the like were investigated for supporting the development of technologies for the mass production and commercialization of solar-grade silicon materials. Concerning the future of production enhancement and cost reduction in the manufacture of polycrystalline silicon solar cells, studies were made from the technological viewpoint. The results are shown below. It is estimated that approximately 4,500 tons of material silicon will be necessary in 2005 and 6,500-10,700 tons in 2010. Since the melting purification method of NEDO (New Energy and Industrial Technology Development Organization) now under development step by step toward commercialization as well as the conventional source will provide the necessary amount of material silicon, it is inferred that the development of solar cells will go on without any restraint originating in the semiconductor industry. With the commercialization of the technologies so far developed and the development/commercialization of the fast-acting high-performance solar cell technology, probabilities are high that the polycrystalline silicon solar cell manufacturing cost in 2010 will be as low as to be on the 100 yen/W (93-118 yen/W) level which is the level now held up as the goal. (NEDO)

  14. Achievement report for fiscal 1997. Technological development for practical application of a solar energy power generation system (development of technology to manufacture thin film solar cells (surveys and researches on analyzing practical application )). Volume 1; 1997 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Usumaku taiyo denchi no seizo gijutsu kaihatsu (jitsuyoka kaiseki ni kansuru chosa kenkyu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    It is intended to identify and analyze quickly and accurately the technological trends inside and outside the country on thin film solar cells, to reflect the results effectively on research and development of practical application of the thin film solar cells for power use, and to aid the research on practical application of the technology to manufacture the thin film solar cells. This fiscal year introduced the new project of researching and developing the poly-crystal silicon-based thin film solar cells. Discussions were given on designing the solar cells, including setting of thickness of an active layer required to improve efficiency of the silicon-based thin film solar cells, the light confining technology, and surface passivation. Comparisons and discussions were given on the new amorphous/poly-crystal silicon thin film manufacturing method and the conventional plasma CVD process. A research development program was introduced for a super laboratory to aid establishing the practical application technology for the silicon-based thin film solar cells. Chalcopyrite compounds including CuInSe2, and CdTe have not shown deterioration even in a long-term outdoor exposure test, hence they are noted as materials for high-efficiency solar cells and studied actively. Although still small in area, the net conversion efficiency was found in the order of 17%. Technological development has started to search mass production processes and commercialization possibility in the future. (NEDO)

  15. FY 1998 annual summary report on manipulation of atomic and molecular extremes. Development of technologies for high-efficiency analysis/manipulation of DNA and the like; 1998 nendo genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho. DNA nado kokoritsu kaiseki sosa gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The objectives are set to establish the techniques for observation/manipulation of atoms and molecules, as the common basic techniques for various industrial areas, e.g., new materials, electronics, biotechnology and chemical. Development of atomic field and scanning tunneling microscopes working under extreme conditions has been pursued, in order to manipulate complex systems, such as living body. For identification of molecular species, laser-excited fluorescence is combined with scanning mechanical probing to further refine the single molecule detection/identification techniques, and the objectives are set to develop a new method for evaluating molecules in a living body using a scanning probe microscope, and also to develop a novel scanning probe microscope for molecules in a living body. The other efforts were directed to R and D of the techniques for observing structures of organic molecules and the like through the measurements of adsorption process of organic molecules and clusters on semiconductor substrates and their surface reactions, and precision measurements of vibrational conditions of adsorbed molecular species reacting in the solid-liquid interfaces by high-sensitivity Raman spectroscopy to elucidate the catalysis mechanisms at the molecular level. (NEDO)

  16. Fiscal 1999 research and development of technologies for practical application of photovoltaic power generation systems. Development of ultrahigh-efficiency crystalline compound solar cell manufacturing technology (Survey and research on practical application - Volume 1); 1999 nendo taiyoko hatsauden system jitsuyoka gijutsu kaihatsu seika hokokusho. Chokokoritsu kessho kagobutsu taiyo denchi no seizo gijutsu kaihatsu (jitsuyoka kaiseki ni kansuru chosa kenkyu - 1)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    A 'Sub-committee for investigation of crystalline compound semiconductor solar cells' was established with the participation of experts from the industrial, bureaucratic, and academic circles to support the manufacture of ultrahigh-efficiency crystalline compound solar cells, and a survey was conducted about technical trends relating to III-V group compound solar cells. In the study of the trends and tasks of the state of the art technology, it is stated that the III-V group compound semiconductor multi-junction solar cell was steadily improving in efficiency, that the InGaP/GaAs 2-junction cell on a Ge substrate and InGaP/GaAs/Ge 3-junction cell in particular were moving toward mass production, and that the target for the 4-junction cell to achieve was 40% or higher in efficiency. For cost reduction, investigations were made into the heteroepitaxial technology, dimensional enlargement, mass production, raw material cost reduction, feasibility of the polycrystalline thin-film technology, light concentration, etc. For efficiency improvement, boundary layer control, structure designs, etc., were studied. Investigations were also conducted into nitride semiconductors, superlattice construction, etc., which related to new materials for thin films. TPV (thermophotovoltaic) power, etc., were reviewed for their practical application. (NEDO)

  17. Fiscal 1999 project for research and development of industrial and scientific technologies. Report on the achievements on the 'research and development of an ultimate atom and molecule manipulation technology' (Development of a technology to analyze and manipulate DNAs at high efficiency); 1999 nendo genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho. DNA nado kokoritsu kaiseki sosa gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In the 'research and development of an ultimate atom and molecule manipulation technology', research has been made on an organic atom and molecule identification and manipulation technology and a dynamic organic molecule simulation technology. This paper summarizes the achievements in fiscal 1999. In the magnetic force controlling AFM for the force spectroscopy aimed at non-destructive atom and molecule identification, a prototype cantilever was fabricated that can excite and detect displacement in lateral direction and is suitable for friction measurement. The SrO surface and TiO2 surface of SrTiO{sub 3}. A carbon nano-tube was employed as a probe. In addition, the molecule inserting SAM technology was used to have developed a technology to measure electric conductivity inside and between molecules. With an aim at realizing a high-speed DNA base arrangement analyzing method, research is being performed upon noticing the single molecule method based on the light measuring method using the single molecule imaging as the base and the scanning probe microscope method. For the dynamic organic molecule simulation technology, theoretical analysis was advanced on synthesis of methanol on copper surface. (NEDO)

  18. Fiscal 1998 R and D project on global environmental industrial technology. Research result report on DNA analysis and information processing technology for photosynthesis microorganisms (Development of CO{sub 2} fixation and effective use technology by using bacteria and algae); 1998 nendo chikyu kankyo sangyo gijutsu kenkyu kaihatsu jigyo. Kogosei biseibutsu nado DNA kaiseki joho shori gijutsu no kenkyu (saikin sorui nado riyo nisanka tanso koteika yuko riyo gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This report summarizes the fiscal 1998 research result on DNA analysis and information processing technology for photosynthesis microorganisms. On the study on DNA analysis technology by triple-strand formation method, as the comparison study result of a READ method, stable triple- strand formation method and hairpin method, a READ method showed the highest triple-strand formation efficiency for target DNA. On the study on accurate separation technology of specific genes, establishment of protocols was promoted for solid-phase probe technology, subtract technology and leveling technology. On the study on DNA microarray analysis technology by high-efficiency hybridization method, the analysis technology of genes by hybridization method using DNA chips is under investigation. In addition, the high- efficiency analysis technology of specific DNA segments by using an affinity sensor, and the high-accuracy cloning technology for DNA with altered primary structure were also studied. (NEDO)

  19. Development in fiscal 1999 of technologies to put photovoltaic power generation systems into practical use. Volume 1. Development of thin film solar cell manufacturing technologies (Development of technologies to manufacture low-cost large-area modules and survey and research on analyzing how to put products into practical use); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Usumaku taiyo denchi no seizo gijutsu kaihatsu (tei cost daimenseki module seizo gijutsu kaihatsu (jitsuyoka kaiseki ni kansuru chosa kenkyu 1))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    With an objective to assist research and development to put thin film solar cells for power use into practical use and a research to put thin film solar cell manufacturing technologies into practical use, survey and research have been performed on trends in the technologies inside and outside the country. Characteristic points in thin film solar cells during the current fiscal year include: expansion of production scale of amorphous silicon solar cells, rapid progress in poly-crystalline silicon thin film solar cell technologies, and enhancement of performance in large-area modules in the a-Si, CIGS, and CdTe systems. In the trends in research and development of amorphous systems, expectation is heightening on elucidation of optical deterioration phenomena, and establishment of suppression technologies thereof. Although the highest efficiency was not renewed in thin film solar cells of small areas, progress was seen in the post-stabilization efficiency in large-area modules. A thin film solar cell manufacturing plant having an annual production capacity of 20 MW was put into operation in October in Japan. Micro (poly) crystalline silicon based solar cells have high possibility of being compatible in cost reduction and performance improvement, and energetic researches are being carried out on them in recent years as the most promising candidate of the next generation solar cells. (NEDO)

  20. Achievement report for fiscal 1997 on development of practical application technology for photovoltaic power generation systems. Development of technologies to manufacture thin film solar cells (development of technologies to manufacture silicon crystal based high-quality materials and substrates / survey and research on analysis of practical application); 1997 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Usumaku taiyo denchi no seizo gijutsu kaihatsu (zairyo kiban seizo gijutsu kaihatsu / silicon kesshokei kohinshitsu zairyo kiban no seizo gijutsu kaihatsu (jitsuyoka kaiseki ni kansuru chosa kenkyu))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    As a plan to develop technologies to manufacture materials and substrates for thin film solar cells, it is intended to reduce defect density, enhance film forming speed, largely improve the photo-electric conversion efficiency and increase manufacturing productivity. These goals will be realized by establishing methods to control defect density, crystal particle diameters and crystallization rate in silicon crystal systems. A technology to form micro-crystal silicon-based thin films will be developed, that have superior photo-stability, and are capable of realizing low cost and mass production. Discussions will be given on a high-density plasma control technology, a fundamental property evaluation technology for micro crystal silicon thin films, and a device design simulation technology. A technology will be developed to form amorphous silicon layer on a stainless steel substrate by using the plasma CVD process. At the same time, discussions will be given on optical annealing and thermal annealing as reformation methods. Fiscal 1997 has surveyed component technologies to identify and analyze quickly and accurately the technical trends inside and outside the country, and to mass produce thin film solar cells. The Material and Substrate System Technology Subcommittee (silicon crystals) was held to deliberate the four-year development program and its progress. (NEDO)

  1. Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - Development of solar beam power generation and utilization systems and ancillary technologies (Research and development of new building material integrated solar cell modules - investigation and research on analysis of practical application); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden riyo system shuhen gijutsu no kenkyu kaihatsu (shinkenzai ittaigata taiyo denchi module no kenkyu kaihatsu (jitsuyoka kaiseki ni kansuru chosa kenkyu))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In order to promote the research to put new building material integrated solar cell modules into practical use, the following items were investigated: (1) functions and specifications for harmonizing with buildings, (2) new module materials that can respond to building materials, (3) marketability, (4) standardization of the assessment methods, (5) consistency with relevant legislation and related institutions, (6) effects on environment as building materials, and (7) investigation on technological trends inside and outside the country. In Item (1), the significance of developing the new building material integrated solar cell modules was made clear. In Item (2), the performance requirements on the currently used module materials were put into order. In Item (3), the market size was investigated, and assignments to establishing the market were put into order, such as the distribution and construction institutions, and assistance to the system introduction. In Item (4), standardization and unification of the assessment methods were discussed, and the items to be standardized were extracted. In Item (6), LCA on the currently used modules was performed. In Item (7), participation was made to the second solar beam power generation conference and EUROSUN '98; investigations were made on trends of developing the new building material integrated solar cell modules and how the recycling related legislation is being progressed; and the achievements in the development activities were confirmed, and the assignments were investigated at the new building material integrated solar cell module subcommittee. (NEDO)

  2. FY 1998 report on the results of the R and D for acceleration of biological resource information basement preparation (bioinformatics). Third revision. Development of measurement technology of interaction among biological molecules (Development of high-precise automatic analysis technology for a trace amount of cellular protein); 1998 nendo seibutsu shigen joho kiban seibi kasokuka kenkyu kaihatsu (bioinformatics) seika hokokusho. Seitai bunshikan sogo sayo no keisoku gijutsu no kaihatsu (saibonai chobiryo tanpakushitsu no koseido jido kaiseki gijutsu no kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    An experimental study was conducted with the aim of developing the technology to acquire/analyze in high sensitivity manifestation proteins existing in a trace amount and in various kinds, concretely, signal transfer molecules, transcription factors, etc. which exist in one cell. After extracting a trace amount of functional proteins for analysis from the specified functional cell, the study was made on the following: precise separation and detection technique for cellular proteins, efficient digestion technique and contaminant elimination technique of stained protein, precise separation of peptides by micro-LC technique, precise peptide molecular mass detection of each separated peptide with high sensitivity, reconstruction of protein structure by computer algorithm. As a result, as to the analysis level, an analysis technology with high sensitivity of a 50 fmol level was established as against the existing level of several pmol. Moreover, after the separation/digestion of proteins by the 2D electrophoresis, a series of the process automation system was completed which is high-precise separation using protein columns - molecular analysis - structure prediction by computer. (NEDO)

  3. New Sunshine Program for fiscal 2000. Development of photovoltaic power system commercialization technology (Development of ultrahigh-efficiency crystalline compound solar cell manufacturing technology - Survey and research of analysis of commercialization - Separate Volume: Survey of next-generation ultrahigh-efficiency solar cell system); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu - Chokokoritsu kessho kagobutsu taiyo denchi no seizo gijutsu kaihatsu (Jitsuyoka kaiseki ni kansuru chosa kenkyu - Bessatsu : Jisedai chokokoritsu taiyodenchi system ni kansuru chosa)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the preparation of a proposition concerning future research and development, surveys and studies were conducted centering about efficiency enhancement and cost reduction for the next generation ultrahigh-efficiency solar cell system. For improving the efficiency of the crystalline compound solar cell, studies were made about the prospects of the embodiment of a 3-junction and 4-junction types and of an increase in conversion efficiency expected to realize thanks to their light condensation behavior. It was inferred that anticipation of 29-47% conversion efficiency in 1 to 4-joint cells was theoretically acceptable. Four-joint structure cell fabrication would be a challenging task but would bring about an conversion efficiency of approximately 47% thanks to enhanced light condensation capability. As for cost reduction through the use of light condensation technology, surveys of overseas trends showed that the condensation-enhanced photovoltaic power system was characteristically fit for lower-price production. As for condensation and tracking systems, studies were made about cost calculation models of organizations involved in the United States and Europe, and then it was found that cost reduction in the optical system for condensation and in the tracking mechanism would be mandatory for the achievement of 75 yen/W. (NEDO)

  4. Research report for fiscal 1995 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology (putting of related data into order); 1995 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka (Kanren data no seibi)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Research and development has been performed with the objectives to establish an evaluation technology for load leveling effect by using a small photovoltaic power generation system for residential use, to clarify the effectiveness of the system as a discrete power supply source through demonstration operation, and furthermore to achieve optimization of the small photovoltaic power generation system for residential use. This paper describes the actual state survey data related to grid connection systems for the small photovoltaic power generation system for residential use. The survey has been performed mainly on the system for individuals' use inside and outside Japan with regard to the small grid connection systems of 1-10 kW scale. The number of survey has reached 216 cases for 46 prefectures in Japan (1,004.02 kW in total), and 47 cases for 13 other countries (205.60 kW in total), or 263 cases in grand total (1,209.63 kW). These 263 cases were tabulated with items of owners (or the facility names and installation locations) as seen by territories (prefectures or countries), facility operators (or executing organizations), connection modes, and power generation scales. These data will serve for discussions on the load leveling effect and the optimized system forms. (NEDO)

  5. Research report for fiscal 1997 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology; 1997 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Tests and researches have been performed with the objectives to establish an evaluation technology for load leveling effect by using a small photovoltaic power generation system for residential use, to clarify the effectiveness of the system as a discrete power supply source through demonstration operation, and furthermore to achieve optimization of designs of the small photovoltaic power generation system for residential use. This paper summarizes the achievements in fiscal 1997. The current fiscal year has performed the continued collection of data of the demonstration operation, and analysis and evaluation on the photovoltaic power generation characteristics and the house load characteristics. According to the data analysis result for fiscals 1995 through 1997, it was shown that, although the photovoltaic power generation system for residential use does not contribute much to load leveling in a house, it contributes to load leveling in the distribution line on the whole or a case as large as a grid. In addition, according to the survey on users who have installed the photovoltaic power generation system, it was indicated that the consciousness of electric power and energy conservation has heightened. The capacity of a photovoltaic power generation system for residential use is 3 kW for a standard type of home, which can take care of more than 60% of the house load. It was concluded that, if a storage battery of small capacity is accommodated, the system is effective for reduction of momentary peak load, enhancement of the power quality, and supply of power at a disaster. (NEDO)

  6. FY 2000 report on the coal resource development basic survey (information collection analysis project). Cooperative project on the open-cut coal mine rehabilitation technology; 2000 nendo sekitan shigen kaihatsu kiso chosa (joho shushu kaiseki jigyo) hokokusho. Rotenbori sekitan saikutsu atochi shufuku gijutsu kyoryoku jigyo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    At the Ensham open-cut mine in Australia, an investigational survey was conducted of a new rehabilitation technology which can contribute also to securing CO sink with the aim of preventing global warming, and the FY 2000 results were summed up. In the survey, the surface soil, sand silt layer, brown rock layer, gray sandstone layer and coal seam were moved from open pits, the goaf was embanked, and the experimental section was set up. As to the place for test, conducted were collection of information on adaptive plant species, bacterium species, meteorology and precipitation pattern, soil analysis, etc. Concerning the bacteria, bacteria were newly separated and tested at the survey site, besides the species to be tested. After planting, measurement of the growth amount of plants, etc. were conducted grasping the meteorology and the water-pouring state during cultivation. For the basement, three kinds of spoils were used, and permeability is different in each spoil. Permeability is an important factor to plants. Too good permeability and too bad permeability are both not good. A future follow-up survey will make what kind of spoil is suitable for eucalypti possible. (NEDO)

  7. FY 1999 Industrial science and technology research and development project. Report on the results of research and development of the technologies for genome informatics (Acceleration of analysis of green mold transcription control information); 1999 nendo genome infomatics gijutsu kenkyu kaihatsu seika hokokusho. Koji kabi no tensha seigyo joho no kaiseki kasokuka nado

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    A total of 49 budding yeast transcription factor disruptants and one conditional transcription over expression strain are produced, to elucidate the gene regulation networks using the gene expression profile data, and to measure the systematic and high-quality gene expression profiles using the Affymetrix's GeneChip system. The program is also developed for accurately predicting the base sequences which regulate expression of given gene groups, based on the uniqueness of the upstream sequences. The analysis with the aid of the program predicts 8 gene expression regulation sequences, which are considered to be novel, from the gene groups of retarded expression by the transcription factor disruptants. The time course gene expression data are produced from the transcription factor SW14 conditional over expression strain. The analysis of the data indicates that the analysis of the subtracted genes using the gene expression profiles from the wild type strain is useful for clarifying the effects of the derived transcription factor over expression. (NEDO)

  8. Fiscal 2000 research report on the study on new device material, measurement, and analysis technologies for data communication base improvement program; 2000 nendo joho tsushin kiban kodoka program ni kakawaru shin device zairyo keisoku kaiseki gijutsu ni kansuru chosa kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-02-01

    Concerning the 'new device material, measurement, and analysis technologies' which is one of the important technological constituent of the data communication base improvement program, investigations were conducted as to the future direction of middle-term technology development efforts and the important tasks to discharge. Workshops were organized to deal with the subjects named below, and the results of discussion were made into a report. It is proposed in the report that common recognition be fomented about future feasibility of the development of the new device material, measurement, and analysis technologies; that presentations be made as to how the development of the new device material, measurement, and analysis technologies should be carried out in what direction; that the tasks to discharge for the new device material, measurement, and analysis technologies be clearly defined; and the like. It is also decided that findings offered by experienced people of the industrial, academic, and government circles be fully utilized at deliberation conferences and that studies be conducted for the implementation in the future of the data communication base improvement program. Materials on the 1st-4th semiconductor program study meetings and EIAJ (Electronic Industries Association of Japan)/NEDO (New Energy and Industrial Technology Development Organization) workshops are collected in the report. (NEDO)

  9. Research report for fiscal 1996 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology; 1996 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Tests and researches have been performed with the objectives to establish an evaluation technology for load leveling effect by using a small photovoltaic power generation system for residential use, to clarify the effectiveness of the system as a discrete power supply source through demonstration operation, and furthermore to achieve optimization of designs of the small photovoltaic power generation system for residential use. This paper summarizes the achievements in fiscal 1996. The current fiscal year has performed collection of data of the demonstration operation, checked the consistency in photovoltaic power generation characteristics, and housing and distribution line load characteristics, and the results were mounted on the database. The demonstration operation data were used to analyze and evaluate the facility utilization rate in the photovoltaic power generation, photovoltaic power generation dependence of the house load, load rate, and peak load reduction rate. As a result, it was found that not much of the peak load reduction effect by the photovoltaic power generation was recognized because the house load is related mainly on lighting load. However, as seen from the distribution line load, the peak load reduction was recognized when the house load and the commercial and industrial load are mixed, whereas it was revealed that the reduction effect is worth evaluation. (NEDO)

  10. Development in fiscal 1998 of silicon manufacturing process to rationalize energy usage. Surveys and researches on analysis of practical application of technology to manufacture silicon raw materials for solar cells; 1998 nendo energy shiyo gorika silicon seizo process kaihatsu seika hokokusho. Taiyo denchi silicon genryo seizo gijutsu no jitsuyoka kaiseki ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    With an objective to develop a mass production technology to manufacture silicon raw materials for solar cells, and assist its practical application, surveys and analyses were performed on trends in development of the related technologies, the problems therein , market trends and industrial trends thereof. This paper summarizes the achievements in fiscal 1998. The worldwide production amount of solar cells in 1998 is estimated to have achieved 150 MW, and the silicon consumption reached the level of 2,300 tons. In spite of the economic recession environment, there was no change in the expansion trend. In developing an SOG-Si mass production and manufacturing technology, construction of pilot plants for each process has been completed, and entered into the operation research phase. In developing a technology to manufacture high quality poly-crystalline silicon substrates, fabrication has been completed on the on-line ingot cutting equipment and the plasma heating equipment, and the stage is now in operation research of continuous electromagnetic casting process. The conversion efficiency of the poly-crystalline silicon solar cells is 14 to 16% at the mass production level, whose enhancement requires indispensably the improvement in quality of the substrate. Discussions are required on the ingot manufacturing conditions in coordination with improvement in the cell manufacturing technology. (NEDO)

  11. Achievement report for fiscal 1999 on research and development of technologies for medical welfare equipment. Chromosome image analysis and diagnosis device with confocal scanning laser microscope; 1999 nendo iryo fukushi kiki gijutsu kenkyu kaihatsu seika hokokusho. Kyoshoten laser kenbikyo ni yoru zensenshokutai gazo kaiseki shindan sochi

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-05-01

    The device is now satisfactorily capable of all image processing functions (bi-levelling, color deviation, brilliance adjustment, etc.) with the exception the karyotyping function. A substance that emits fluorescence by laser excitation is developed (for labelling the probe). A direct labelling method is studied, in which nucleic acid probes (nucleic acid labelled for chromosomal identification) will prove to be remarkably high in sensitivity. A new fluorescent reagent is synthesized, which is a BHHCT-4-dUTP to act as a nucleic acid probe. It is found that the new substance is superior to the conventional fluorescent substances in terms of stability and that all chromosomes may be forced into hybridization (selective combination of a probe with a peculiar chromosome) when various probes are labelled by this substance. A programing unit is constructed for a chromosomal aberration database. Items needed relative to chromosomes and parameters relative to chromosomal aberration data are appropriately arranged, and conditions to satisfy for their development into a database are studied. A rough design of an interface is complete. (NEDO)

  12. Achievement report for fiscal 1997 on developing a silicon manufacturing process with reduced energy consumption. Investigation and research on analyzing practical application of a technology to manufacture solar cell silicon raw materials; 1997 nendo energy shiyo gorika silicon seizo process kaihatsu. Taiyo denchi silicon genryo seizo gijutsu no jitsuyoka kaiseki ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper describes the achievement in fiscal 1997 of analyzing practical application of a technology to manufacture solar cell silicon raw materials. Silicon consumption for solar cells in fiscal 1997 has increased to 2000-ton level, and the supply has been very tight. For drastic improvement in the demand and supply situation, development of SOG-Si manufacturing technology and its early practical application are desired. The development of the NEDO mass-production technology using melting and refining has completed constructing the process facilities in fiscal 1998, and will enter the stage of operational research. However, insufficiency in the basic data about behavior of impurities is inhibiting the development. In the substrate manufacturing technology, discussions have shown progress on use of diversifying silicons outside the standard by using the electromagnetic casting process. For slicing and processing the substrates, development of a high-performance slicing equipment and automatic rough rinsing machine is under way. Properties required on silicon raw materials vary considerably widely because of difference in cell making systems and conditions, which is attributable to unknown impurity behavior. When 1GW production is assumed, the cell module manufacturing cost is calculated as 137 yen/W, for which low-cost mass production for its realization, slicing productivity enhancement, and cost reduction are required. The paper also describes site surveys in overseas countries. (NEDO)

  13. Research report for fiscal 1996 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology. Evaluation on durability of device installed with inverter to protect grid connection; 1996 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka - Inbata tsuki keito renkei hogo sochi no taikyusei hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Discussions and evaluations have been performed on the safety and durability of the device installed with inverter to protect grid connection being an important device in the photovoltaic power generation system. This paper summarizes the achievements in fiscal 1996. The current fiscal year performed data collection and long-term continuous operation according to the durability test program for the device installed with inverter to protect grid connection, as the continuation from the previous fiscal year. In the electrical characteristics, although no large changes have been found in AC overvoltage and AC undervoltage, instability was observed in the detection level. With regard to temperatures in different components, the temperature rise has become nearly the same as in the maximum output continuous operation as a result of the repetition of the operation and shutdown, whereas the influence on the electrical and thermal stresses have increased. Particularly, when temperature rise in the AC side noise filter was given observation, the measurement of conductive high-frequency terminal voltage showed a value higher by several ten dB than in the previous fiscal year. The current fiscal year has gone farther to starting the measurement of noise electric field intensity as the base of electromagnetic interference. (NEDO)

  14. Fiscal 1994 research report. Demonstration test for establishing technology for peakload shaving with dispersed small residential PV systems (Evaluation of weatherability of house-use solar light electric power generating system equipment); 1994 nendo jutakuyo taiyoko hatsuden fuka heijunka gijutsu nado kakuritsu jissho shiken ni kansuru kaiseki hyoka no uchi jutakuyo taiyoko hatsuden system kiki no taikosei hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    Weatherability tests such as exposure to the atmosphere are conducted to collect and accumulate information on the degradation of house-use photovoltaic equipment expected to come into use in areas where weather conditions are hostile. Based on the thus collected data, analysis and evaluation are conducted about the mechanisms of corrosion and degradation for the establishment of designing and evaluating methods for maintaining weatherability. Since fiscal 1994 is the first year of the project, preparations are made for tests to be conducted. In carrying out research activities, a Weatherability Evaluation Committee for House-Use Solar Light Electric Power Generating System Equipment is organized, who discuss implementation of the project. Discussion is made on the shape and structural materials of the exposure rack. An aluminum alloy coated with a clear coating of alumite sulfate is selected, and a rack is built. Specifications of a sea salt particle collector are discussed, and preparations are made for arresting and quantifying sea salt particles under the Japanese Industrial Standard (JIS) dry gauze method and the International Organization for Standardization (ISO) wet candle method. Solar cell module initial characteristics are measured. (NEDO)

  15. Research report for fiscal 1996 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology, of which IEA international cooperation project; 1996 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka no uchi IEA kokusai kyoryoku jigyo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This paper summarizes the activities related to the Annex II 'Communication technology for DSM' in the international cooperation agreement on the DSM program by IEA. With regard to the 'needs in relation with DSM and the related functions and the communication technology between the demand side and the electric power companies required for the execution thereof', a survey has been made by sending question letters to ten membership nations, which has been compiled into a report. With respect to the 'evaluation on the method for international cooperation on standardization of the communication technology', replies to the question letters from the membership nations were analyzed. Decisions were given on the standards directly related to the communication technology for DSM, the standard drafting organizations, and the working groups. With regard to the 'evaluation on priority on research, development and demonstration of the communication technology for DSM', propositions were given as the project on the technology for communications inside a building for DSM and the related functions, development and transfer of DSM and the related functions from the communication media for a narrow band to a wide band, and specifications for the customers' terminals. In developing the general purpose personal computer software 'eaCOMMS', distribution and discussions were given on the trial edition. (NEDO)

  16. Research report for fiscal 1995 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology. Evaluation on durability of device installed with inverter to protect grid connection; 1995 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka - Inbata tsuki keito renkei hogo sochi no taikyusei hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Discussions and evaluations have been performed on the safety and durability of the device installed with inverter to protect grid connection being an important device in the photovoltaic power generation system. In discussing the durability test items, electrical property changes were observed on AC overvoltage, AC undervoltage, frequency rise, and frequency fall, as the continuation from the previous fiscal year, in order to evaluate temperature rise in different parts due to lapse of operation time and the effects of thermal stress in each component on the stress of the entire product. Furthermore, verification of single operation detecting function, tests on sudden input power change, sudden grid voltage change, and measurement of conductive high frequency terminal voltage were conducted in addition to the above observations. In discussing the durability test methods, repetition of operation and shutdown during the rated operation was adopted in place of the simulated operation using variation in the insolation having been discussed in the previous year. As a result of the tests, no noticeable changes were recognized from the evaluation result after a lapse of 5,000 hours from the start of the operation, as compared to those after the aging operation. (NEDO)

  17. Research report for fiscal 1997 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology. Evaluation on durability of device installed with inverter to protect grid connection; 1997 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka - Inbata tsuki keito renkei hogo sochi no taikyusei hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Tests and discussions have been performed on the safety and durability of the device installed with inverter to protect grid connection, being an important device in the photovoltaic power generation system. The particularly important requirements demanded in the device were specified as maintenance of electric power quality, coordination with the protection system in the grid side, and assurance of safety of personnel and facilities. The current fiscal year has performed operation corresponding to that in the actual field for 20 years in total, and the evaluation tests on electrical characteristics and electric power quality. This paper summarizes the achievements in four years including the results available up to the previous fiscal year. Although no large change has been identified in the electrical characteristics, variance has been found in the detection time of overvoltage in the grid side. With regard to the electric power quality, the value has exceeded 89 dB as the determining condition for the certification test in the conduction interfering waves of 5 kHz to 10 kHz. In addition, it was confirmed that the conductive high-frequency noise terminal voltage in the grid side after the repetition of operations and shutdowns tends to increase according to the operation lapse time. (NEDO)

  18. Research report for fiscal 1995 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology (putting of related data into order); 1995 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka (Kanren data no seibi)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Research and development has been performed with the objectives to establish an evaluation technology for load leveling effect by using a small photovoltaic power generation system for residential use, to clarify the effectiveness of the system as a discrete power supply source through demonstration operation, and furthermore to achieve optimization of the small photovoltaic power generation system for residential use. This paper describes the actual state survey data related to grid connection systems for the small photovoltaic power generation system for residential use. The survey has been performed mainly on the system for individuals' use inside and outside Japan with regard to the small grid connection systems of 1-10 kW scale. The number of survey has reached 216 cases for 46 prefectures in Japan (1,004.02 kW in total), and 47 cases for 13 other countries (205.60 kW in total), or 263 cases in grand total (1,209.63 kW). These 263 cases were tabulated with items of owners (or the facility names and installation locations) as seen by territories (prefectures or countries), facility operators (or executing organizations), connection modes, and power generation scales. These data will serve for discussions on the load leveling effect and the optimized system forms. (NEDO)

  19. Fiscal 2000 information collection/analysis project on basic research for coal resource exploitation. Research on technology of low-concentration methane gas recovery from underground coal mine; 2000 nendo sekitan shigen kaihatsu kiso chosa joho shushu kaiseki jigyo. Konaikutsu tanko ni okeru teinodo methane kaishu gijutsu chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Technical trends were surveyed concerning the recovery and the use as fuel of low-concentration methane gas or the like contained in the air ventilated out of coal mines. Methane gas recovery technologies include high-temperature incinerators and catalytic incinerators designed to collect heat, method of conversion of methane to CO2 using microbes named methanotrophs, and adsorption methods using activated charcoal, zeolite, or the like. Among technologies that have reached a practical level in the utilization of mine methane gas, there are the temperature regenerative flow-reversal reactor (TFRR) and the catalytic flow-reversal reactor (CFRR) utilizing high-temperature oxidation reaction. TFRR has been reported effective by MEGTEC System after a 6-month operational test of a 3.0m{sup 3}/s plant at a British coal mine. Test and research are over with CFRR, which is now ready for a commercial scale verification test. Recovery by adsorption, though worth further research efforts, is economically away from commercialization at the present stage, and wants more studies of adsorbents, etc. (NEDO)

  20. Research report for fiscal 1995 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology; 1995 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Research and development has been performed with the objectives to establish an evaluation technology for load leveling effect by using a small photovoltaic power generation system for residential use, to clarify the effectiveness of the system as a discrete power supply source through demonstration operation, and furthermore to achieve optimization of the small photovoltaic power generation system for residential use. This paper summarizes the achievements in fiscal 1995. With the demonstration operation in the current fiscal year, through-the-year data have been accumulated for the first time since the start of the demonstration operation, and were mounted on the load leveling database. As a result of analyzing the demonstration operation data, the following points were revealed: regarding the housing load, the lighting load is the main factor both in summer and winter; the effect of reducing the peak load by photovoltaic power generation is recognized at about 60% as maximum, but the substantial effect has large variation, hence stochastic; and the reverse current becomes the main factor during daytime, not necessarily leading to improvement of the housing load characteristics in the aspect of load rate. According to the surveys on the energy demand trends up to the year 2030, the power supply configuration, and introduction cost, it was revealed that the photovoltaic power generation can be sufficiently expected as a power supply to handle the peak load. (NEDO)

  1. Achievement report for fiscal 1999 on the development of silicon manufacturing process rationalizing energy utilization. Research and study on analysis to put silicon raw material manufacturing technology for solar cells into practical use; 1999 nendo energy shiyo gorika silicon seizo process kaihatsu seika hokokusho. Taiyo denchi silicon genryo seizo gijutsu no jitsuyoka kaiseki ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In order to support the development and practical application of a mass production technology for manufacturing silicon raw materials for solar cells, research and study were performed on trends of developing the related technologies, and movements in markets and industries. This paper reports the achievements thereof in fiscal 1999. Markets for solar cells are growing favorably, and the worldwide solar cell production in 1999 was 200 MWp, of which 80% or more is occupied by crystalline silicon solar cell. While development of the manufacturing technology for SOG-Si mass-production is in the stage of operation research of pilot plants, it has been verified that problems of impurity contamination was resolved, and high-purity silicon can be manufactured. In developing the silicon scrap utilization technology and a technology to integrate silicon refinement with casting, a conversion efficiency of 14% or higher was acquired in prototype sample substrates. It has been verified that a variety of raw materials can be dealt with by using the above technology, which has a possibility of cost reduction. In developing a substrate manufacturing technology, a great progress has been made in enhancing the productivity and reducing the cost by developing the continuous casting in the electromagnetic casting and the automation technology. (NEDO)

  2. FY 2000 report on the results of the development of technology for commercialization of the photovoltaic power system - Development of production technology of thin film solar cells. Separate Volume 1. Development of production technology of low cost/large area modules (Investigational study on the commercialization analysis); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu {sup H}akumaku taiyodenchi no seizo gijutsu kaihatsu{sup -} Tei cost dai menseki mojuru seizo gijutsu kaihatsu (Jitsuyoka kaiseki ni kansuru chosa kenkyu) - 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the purpose of supporting the study of commercialization of thin film solar cells for electric power use and the study of production technology of thin film solar cells, survey of the technical trend of the thin film solar cell was conducted, and the FY 2000 results were summed up. The typical Si system thin film solar cell is the amorphous Si solar cell, and the quantity production has already started in Japan and abroad. Further, with the aim of making use of characteristics of the amorphous Si solar cell and also making its defects up, the development of Si thin film solar cell using microcrystal Si and polycrystal Si is greatly expected. Among those, attention is paid to the hybrid type that was proposed for the remarkable improvement in the conversion efficiency of amorphous Si solar cell. In the compound thin film system, the Cu(InGa)Se{sub 2}(CiGS) solar cell was put on the market as product by SSI, though the market scale is small. Further, as to the CdTe thin film solar cell, trial manufacture of the large area module was made in view of the housing use. In addition, there was seen great progress in the color sensitized cell and organic semiconducting solar cell mainly in the U.S. and Europe. (NEDO)

  3. FY 2000 report on the results of the development of commercialization technology of the photovoltaic power system. R and D of the photovoltaic power generation utilization system/periphery technology (R and D of the new solar cell module integrated with construction materials - Investigative study on analysis for commercialization); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu, Taiyoko hatsuden riyo system, shuhen gijutsu no kenkyu kaihatsu (Shinkenzai ittaigata taiyodenchi mojuru no kenkyu kaihatsu - Jitsuyoka kaiseki ni kansuru chosa kenkyu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the purpose of supporting the study for commercialization of the new module integrated with construction materials, survey of the technical trend of the new module integrated with construction materials in Japan and abroad was conducted, and the FY 2000 results were summarized. As to the module material correspondent to construction materials, the results of the survey made in the past three years were summarized, and the subjects to be considered in future were arranged from a viewpoint of disposal/recycle of modules. Concerning the marketability, various policies for the spread of solar cell module that is an immature good were arranged. Survey was also made of the photovoltaic power system using the field test project as a sample, and the following were made clear: The photovoltaic power generation has appeal for environmental consideration and energy conservation; In some cases, the power generation effect was not as much as expected because the information on design/construction is not sufficient. Relating to the evaluation of its effect on the environment, the paper summarized the environmental influence in each of the module methods at each stage of production/utilization/disposal and the basic items for measures to cope with the influence. (NEDO)

  4. Research report for fiscal 1995 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology, of which evaluation on weatherability of devices used in residential photovoltaic power generation system; 1995 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka no uchi jutaku you taiyoko hatsuden system kiki no taikosei hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Weatherability tests have been performed on devices used in the residential photovoltaic power generation system by means of exposure, with the objectives to analyze and evaluate the safety and reliability due to aging of the devices used in the residential photovoltaic power generation system. This paper summarizes the achievements in fiscal 1995. In the outdoor exposure test on solar cell modules, multi-crystalline silicon solar cell modules were selected as the test specimens, and thermo-couples were embedded in the modules to measure the temperatures. Also for the purpose of comparison, storage test specimens were stored in a constant temperature and humidity chamber. The exposure tests were carried out in three locations of the city of Choshi in Chiba Prefecture, the Miyako Island test site in Okinawa Prefecture, and the Miyako Island seashore. In the measurement and evaluation, appearance observation and measurements of output characteristics and insulation resistance were executed in summer and winter. No noticeable changes were observed in the measurements after lapse of four months and six months. In the outdoor exposure tests of metal test pieces, aluminum alloys were tested for corrosion caused by contact with different kinds of metals. Although the test period was short in the current fiscal year, difference in corrosion degrees in the aluminum alloys was found already in three months. (NEDO)

  5. Research report for fiscal 1996 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology, of which evaluation on weatherability of devices used in residential photovoltaic power generation system; 1996 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka no uchi jutaku you taiyoko hatsuden system kiki no taikosei hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Weatherability tests have been performed on devices used in the residential photovoltaic power generation system by means of exposure, with the objectives to analyze and evaluate the safety and reliability due to aging of the devices used in the residential photovoltaic power generation system. This paper summarizes the achievements in fiscal 1996. In the outdoor exposure tests on solar cell modules, results of the tests were derived for up to 18 months after the start of the exposure at Choshi City, Miyako Island and the Miyako Island seashore. In the appearance observation, some white rust has appeared in the contact section of the aluminum frames of the solar cell modules and fixing screws, which have been exposed at Miyako Island and the Miyako Island seashore, but no changes that may give influence on the performance of the solar cells have been observed. The results showed performance similar to or slightly inferior to that before the exposure as a whole. The insulation resistances were all found good. According to the result of the outdoor exposure test of metal test pieces, noticeable difference in the corrosion degrees was recognized in the contact corrosion section of the aluminum alloys exposed in three areas having different meteorological and environmental factors. Electroplated zinc was found to have severer pitting corrosion in the contact sections than treatment-free zinc. (NEDO)

  6. Research report for fiscal 1997 on analysis and evaluation of demonstration tests for establishment of residential photovoltaic power generation load leveling technology, of which evaluation on weatherability of devices used in residential photovoltaic power generation system; 1997 nendo kenkyu hokokusho. Jutaku you taiyoko hatsuden fuka heijunka gijutsu tou kakuritsu jissho shiken ni kansuru kaiseki hyoka no uchi jutaku you taiyoko hatsuden system kiki no taikosei hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    With the objectives to analyze and evaluate the safety and reliability due to aging of the devices used in the residential photovoltaic power generation system, weatherability tests have been performed on devices used in the residential photovoltaic power generation system by means of exposure. This paper summarizes the achievements in fiscal 1997. In the outdoor exposure tests on multi-crystalline silicon solar cell modules at Choshi City, Miyako Island and the Miyako Island seashore, the output characteristics after the exposure tests showed a result that the insolation intensity and the change in the short circuit current are approximately proportional, and the temperature in the module and the change in the open voltage are inversely proportional. The module characteristics retention rate showed no change in the 29-month exposure at all of the three exposure locations. The insulation resistance in the exposure test specimens have been good at 2,000 M{omega} or more in all the locations until 18 months have elapsed. However, the test specimens in Miyako Island and the Miyako Island seashore showed 99 M{omega} after 23 months, and 129 to 1,774 M{omega} after 29 months. According to the outdoor exposure tests of metal test pieces, noticeable difference was found in corrosion due to difference in the environment by each exposure location, whose order of the corrosion degree was the Miyako Island seashore > Miyako Island > Choshi City. (NEDO)

  7. Analysis of automotive tire construction. Jidosha tire no kozo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Ishihara, K. (Toyo Tire and Rubber Co. Ltd., Osaka (Japan))

    1993-06-15

    This paper introduces features and trends of analyzing performance and construction of automotive tires. Tires are demanded of high durability, high motion performance, good comfort performance for vibration and noise, and low fuel consumption performance. A feature of analyzing the construction is to execute a modelling assuming that a tire has air-rigid flexible structure and rubber materials show hyperelastic behavior, hypothesizing a strain energy density function. In addition, a tire is highly incompressible. Visco elasticity and anti-friction performance are also important points. Rubber and cord layers have elastic characteristic of three-dimensional perpendicular anisotropy as well as non-linearity with which characteristics change according to transformation. A structural analysis must cover from static analysis to steady dynamic analysis, non-steady dynamic analysis, and eigenvalue analysis. Thermal analysis of tires simulates phenomena by combining dynamical analysis with thermal analysis. Super-computers have now come to be used for formulating equilibrium equations using finite element methods, developing finite elements, and performing heat or visco elasticity analysis and applied analysis. 35 refs., 3 figs.

  8. Analysis of stress distribution of timing belts by FEM; Yugen yosoho ni yoru timing belt oryoku kaiseki (belt code oryoku bunpu kaiseki hokoku)

    Energy Technology Data Exchange (ETDEWEB)

    Furukawa, Y; Tomono, K; Takahashi, H; Uchida, T [Honda R and D Co. Ltd., Tokyo (Japan)

    1997-10-01

    A model of the belt analyzed by-ABAQUS (: a general nonlinear finite element program) successfully confirmed the mechanism that generates the belt cord stress. A quite good agreement between experimental and computed results for the stress distribution of the belt cord. It is found that maximum stress of the cords occurs near the root of the tooth by calculation, where the belt cords break off. 3 refs., 9 figs.

  9. Creep analysis and torsional vibration analysis of cable-stayed bridges with two edge composite girders; Nishuketa gosei kozo shachokyo no creep kaiseki to nejiri shindo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Hoshino, M. [Nihon University, Tokyo (Japan). College of Science and Technology

    1996-07-21

    This paper describes the creep analysis and torsional vibration analysis of cable-stayed bridges with two edge composite girders. The girder is composed of the concrete slab and the steel girder. I-girders are placed at both edges of the profile. Such a type of bridge was investigated. As the stress migrates by the creep of concrete slab, it is necessary to evaluate the influence of this creep precisely in designing. In the analysis, the composite girder was expressed not by the single member, but by the binary member consisting of concrete member and steel member. Two methods were employed, i.e., method A in which both members are connected by the rigid body beam and method B in which the profile of concrete is converted into the profile of steel. The method A provided better accuracy, but the method B was often sufficient. Torsional rigidity of the open profile structure was much smaller than that of the box profile. As the torsional natural frequency was low, proper torsional vibration analysis was indispensable especially from the viewpoint of wind resistance. Two methods were employed, which utilize the vibration analysis method for general space frame structures. Results of both methods were agreed mutually, but the second method provided better calculation efficiency. 10 refs., 9 figs., 6 tabs.

  10. Introductory asphalt technology; Nyumon asphalt gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Muroga, G. [Mitsubishi Oil Co. Ltd., Tokyo (Japan)

    1994-12-28

    The type and applications, manufacturing method, characteristics, road pavement etc. of asphalt were introduced. Among the petroleum asphalts, straight asphalt is used for road pavement,industry, and combustion, while blown asphalt is mainly used for the waterproofness of a building. Also, the demand for modified asphalt where rubber or thermoplastic elastomer was mixed is increasing. Straight asphalt is obtained by allowing atmospheric distillation tower bottom oil to be subjected to reduced pressure distillation and drawing reduced pressure gas oil and lubrication oil cut. Blown asphalt is produced by the oxidation dehydrogeneration and condensation polymerization reaction of soft straight asphalt. Rheology characteristics of asphalt are expressed by stiffness, relaxation elastic modulus, complex elastic modulus, etc. Also, asphalt has high electrical dielectric properties. Asphalt pavement has functions for dispersing traffic load and then transferring it to a lower layer, for resisting wear and cracking, and for preventing penetration of rainwater. 30 refs., 5 figs., 4 tabs.

  11. Analysis of current distribution in a large superconductor; Chodendo dotai nai no denryu bunpu kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Hamajima, K.; Alamgir, A.K.M.; Harada, N.; Tsuda, M. [Yamaguchi Univ., Yamaguchi (Japan); Ono, M.; Takano, H. [Toshiba Corp., Tokyo (Japan)

    2000-04-25

    An imbalanced current distribution is often observed in cable-in-conduit (CIC) superconductors, which are composed of multistaged, triplet type sub-cables, and deteriorates the performance of the coils. Therefore, it is very important to analyze the current distribution in a superconductor and find out methods to obtain a homogeneous current distribution in the conductor. We apply a magnetic flux conservation in a loop contoured by electric center lines of filaments in two arbitrary strands located on adjacent layers in a coaxial multilayer superconductor, and then analyze the current distribution in the conductor. A generalized formula governing the current distribution can be described as explicit functions of the superconductor construction parameters, such as twist pitch, twist direction and radius of each layer. It is shown that we can obtain a homogeneous current distribution using this fundamental formula, which is a function of the twist pitches of layers. Moreover, it is demonstrated that we can control current distribution in the coaxial superconductor. (author)

  12. Seismic traveltime tomography by use of gridpoints discritization; Koshitenho ni yoru danseiha tomography kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Hirai, T; Watanabe, T; Sassa, K [Kyoto University, Kyoto (Japan). Faculty of Engineering

    1996-05-01

    Efforts were made to enhance analytical precision and stabilize the results in seismic traveltime tomography by use of a method wherein the velocity distribution is expressed as a continuous function interpolated by parameters respectively assigned to the gridpoints. In this method, the slowness data are regarded as the parameters respectively assigned to the gridpoints, and the slowness value at a given point is determined after interpolation by the gridpoints surrounding the said point. A method based on the variation principle was used for ray tracing. As the result, it was confirmed that this method determines the ray path and traveltime with high precision. A method of least squares using Lagrange`s multiplier was applied for inversion. Comparison was made between the use of cells and the use of gridpoints in the results of inversions performed for an inclined 4-layer structure model, when it was found that the values involving the boundaries between layers, inclinations of the layers, and velocities of seismic waves are ambiguous with the cells while those with the gridpoints are reconstructed roughly correctly. 5 refs., 7 figs., 1 tab.

  13. Performance analysis in Japanese field test program; Field test data kara no chiiki hatsuden kaiseki hoho

    Energy Technology Data Exchange (ETDEWEB)

    Sugiyama, H.; Kurokawa, K.; Uchida, D. [Tokyo University of Agriculture and Technology, Tokyo (Japan); Otani, K.; Sakuta, K.; Tsuda, I. [Electrotechnical Laboratory, Tsukuba (Japan); Oshiro, T.; Sakamoto, K. [Japan Quality Assurance Organization, Tokyo (Japan)

    1997-11-25

    Power generation characteristics are investigated using data collected in photovoltaic power generation field tests being undertaken by NEDO (New Energy and Industrial Technology Development Organization). The photovoltaic power generation system performance is evaluated by examining loss factors leading to degradation in system performance, with weather conditions such as variation in insolation and air temperature, inverter performance, and shadows cast by surrounding buildings taken into consideration. As the result, it is found that the important loss factors are degradation in module performance due to elevated temperature, drift in the maximum output control, degraded inverter performance due to input power variation, effect of shadows, etc. It is learned that system is greatly affected by degradation in module performance due to increased temperature in summer and by shadows in winter, the two being responsible for the output coefficient dropping to approximately 75% throughout the year. The output coefficient frequency distribution charts for the 75 test sites confirm that the rate is as low as 70-80% at many sites. As for the system operating time, it tends to be longer in West Japan where the annual insolation rate is higher. 3 refs., 10 figs.

  14. Sorption mechanism of solvent vapors to coals; Sekitan eno yobai joki no shuchaku kiko no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Shimizu, K.; Takanohashi, T.; Iino, M. [Tohoku University, Sendai (Japan). Institute for Chemical Reaction Science

    1996-10-28

    With an objective to clarify the interactions between micropore structure of coal and solvent reagents, a sorption experiment was carried out under solvent saturated vapor pressure. Low-volatile bituminous coal, Pocahontas No. 3 coal, has the aromatic ring structure developed, and makes solvent more difficult to diffuse into coal, hence sorption amount is small. Methanol has permeated since its polarity is high. High-volatile bituminous coal, Illinois No. 6 coal, makes solvent penetrate easily, and the sorption amount was large with both of aromatic and polar solvents. Since brown coal, Beulah Zap coal, contains a large amount of oxygen, and hydrogen bonding is predominant, sorption amount of cyclohexane and benzene having no polarity is small. Methanol diffuses while releasing hydrogen bond due to its polarity, and its sorption amount is large. A double sorption model is available, which expresses the whole sorption amount as a sum of physical sorption amount and amount of permeation into coal. This model was applied when it explained successfully the sorption behavior of the solvents relative to coals, excepting some of the systems. However, also observed were such abnormal behavior as sorption impediment due to interactions between coal surface and solvents, and permeation impediment due to hydroxyl groups inside the coals. 1 ref., 10 figs., 2 tabs.

  15. Analysis of bending process using forming simulation; Seikei simulation ni yoru press niji seikei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Hamaguchi, T; Ogawa, T; Tamai, H [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    FEM simulation system is becoming an effective tool in the production engineering, especially in the evaluation of press formability. We have been applying it to the evaluation of defect phenomena, such as breakage and wrinkling, which occur in the drawing process to produce auto body parts. We tried a new application which treat dimensional precision and the other defect in the flanging or bending process after trimming. In this paper, we introduced the result of development and an example applied in the analysis. 1 refs., 8 figs.

  16. Analysis of levitation characteristics of radial-type superconducting magnetic bearings; Rajiarugata chodendojikijikuju no fujotokusei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Fukuyama, H.; Takizawa, T. [NSK Ltd., Kanagawa (Japan)

    1999-11-25

    In the design of a large-scale flywheel. load capacity and bearing constants (i.e. spring and damping constants) should be accurately calculated. In this report, a newly developed analysis method for radial-type superconducting magnetic bearings (SMBs) composed of several couples of magnet rings and magnetic material spacers is described. The analysis based both on electromagnetic FEM of the magnetic field and the 2-dimensional Bean model for analysis of the magnetization of type-2 superconductors. To obtain accurate magnetization hysteresis that reflects the complex magnetic fields, a superconductor is meshed into cells and then the electromagnetic force between the magnetic fields of magnetics and the magnetization of the superconductor are calculated. Recently, computer programs which can calculate the axial load capacity of radial-type SMBs have been developed. Furthermore, programs which can calculate bearing constants are close to being completed. Calculated results on axial load capacity showed good agreement with the experimental results. (author)

  17. Crack coke in layer heat transfer analysis; Kiretsu no shinten wo tomonau kokusu sonai dennetsu kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Aoki, Hideyuki [Tohoku University, Miyagi (Japan)

    1999-03-05

    The research method heat transfer process by physical change of the coke by heat transfer from furnace wall in the retorting of coal seam filled in coke oven and flow of the gas is very complicated chamber oven style, and it does not become clear. For the purpose of the elucidation of in layer crack generation and progress mechanism, he is (1) The expansion of the softening cohesive layer. (2) Programming rate dependence of the heat. Mechanical property value on coal seam and semi- coke layer in the retorting. (3) The creep property of softening cohesive layer and semi- coke layer. (4) The setting of crack growth condition of stress intensity factor in crack tip and fracture property value of the coke by the comparison. (5) By considering the radiative heat transfer in the crack, coke in layer thermal stress analysis was carried out. The validity of these analytical result it was confirmed by the comparison with the experimental result of crack growth. Deformation behavior in the small dry distillation furnace, and crack growth mechanism in the coke layer became clear, and the prediction of the stress as micro-crack cause of generation of heating surface side coke surface and inside became possible. The numerical analysis method of the above crack growth mechanism greatly contributes to the prediction of dry distillation heating requirement and grain size of coke lump which is an index to the coke quality. Heat on material process which is accompanied by the solidification. Contraction from the softening and material migration phenomenon have been clarified by the creative research method, while this research is directly useful for energy saving of pig ironmaking process of becoming one of the ringleaders of the CO{sub 2} generation. (translated by NEDO)

  18. Analysis of impact resistance of composite fan blade. Fukugozai fan blade no taishogekisei no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Miyachi, T; Okumura, H; Otake, K; Sofue, Y [Japan Society for Aeronautical and Space Sciences, Tokyo (Japan)

    1992-01-05

    Numerical analysis of impact response was carried out when a bird strike was simulated to study the applicability of fiber reinforced composite material to fan blades for turbo-fan engines. The validity of the numerical analysis was verified by comparing the analyzed results with impact tested results of a fan-blade model of Ti-alloy. The impact resistance was studied by applying this method to fan blades of composite materials such as carbon fiber, epoxy resin and carbon-silicate fiber reinforced Ti-alloy. The finite element method was used for the analysis by dividing the model into triangular flat elements. The relation between the impact load, the deformation of blade and the strain, the natural frequency characteristics, the elastic modulus and hetrogeneity of blade were considered to analyze the impact response. The impact load by the strike of 1.5 lbs bird is very severe to the fan blades for turbo-fan engines having the thrust of 5 ton class. 23 refs., 23 figs., 3 tabs.

  19. Fault structure analysis by means of large deformation simulator; Daihenkei simulator ni yoru danso kozo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Murakami, Y.; Shi, B. [Geological Survey of Japan, Tsukuba (Japan); Matsushima, J. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering

    1997-05-27

    Large deformation of the crust is generated by relatively large displacement of the mediums on both sides along a fault. In the conventional finite element method, faults are dealt with by special elements which are called joint elements, but joint elements, elements microscopic in width, generate numerical instability if large shear displacement is given. Therefore, by introducing the master slave (MO) method used for contact analysis in the metal processing field, developed was a large deformation simulator for analyzing diastrophism including large displacement along the fault. Analysis examples were shown in case the upper basement and lower basement were relatively dislocated with the fault as a boundary. The bottom surface and right end boundary of the lower basement are fixed boundaries. The left end boundary of the lower basement is fixed, and to the left end boundary of the upper basement, the horizontal speed, 3{times}10{sup -7}m/s, was given. In accordance with the horizontal movement of the upper basement, the boundary surface largely deformed. Stress is almost at right angles at the boundary surface. As to the analysis of faults by the MO method, it has been used for a single simple fault, but should be spread to lots of faults in the future. 13 refs., 2 figs.

  20. Two-dimensional inversion of MT (magnetotelluric) data; MT ho no nijigen inversion kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Ito, S; Okuno, M; Ushijima, K; Mizunaga, H [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    1997-05-27

    A program has been developed to conduct inversion analysis of two-dimensional model using MT data, accurately. For the developed program, finite element method (FEM) was applied to the section of sequential analysis. A method in which Jacobian matrix is calculated only one first time and is inversely analyzed by fixing this during the repetition, and a method in which Jacobian matrix is corrected at each repetition of inversion analysis, were compared mutually. As a result of the numerical simulation, it was revealed that the Jacobian correction method provided more stable convergence for the simple 2D model, and that the calculation time is almost same as that of the Jacobian fixation method. To confirm the applicability of this program to actually measured data, results obtained from this program were compared with those from the Schlumberger method analysis by using MT data obtained in the Hatchobara geothermal area. Consequently, it was demonstrated that the both are well coincided mutually. 17 refs., 7 figs.

  1. Data processing for the fluid flow tomography method; Ryutai ryudo den`iho no data kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Ushijima, K; Mizunaga, H; Tanaka, T [Kyushu University, Fukuoka (Japan). Faculty of Engineering; Hashimoto, K [Kyushu Electric Power Co. Inc., Fukuoka (Japan)

    1997-05-27

    An automatic measurement system by means of conductive potential and self-potential methods (fluid flow tomography method) has been developed to measure the change of geothermal steam fluid during production and injection. For the fluid flow tomography method, the four-electrode configuration of the conductive potential method is adopted using the casing pipe of well as a current source. A lot of potential receiving electrodes are connected to the earth, preliminarily. The surface potential profile is measured, which is formed during the injection and production of the fluid through the well. Artificial and spontaneous potential profiles were continuously measured using this system during the hydraulic crushing tests at the test field of hot dry rock power generation at Ogachi-machi, Akita Prefecture. As a result of inversion analysis of self-potential data using a four-layer structural model of specific resistance, it was observed that the fluid injected at the depth of 711 m in the borehole permeated into the depth between 700 and 770 m in the south-eastern part of the well, and that the fractures propagated into the deeper part, gradually with the progress of hydraulic crushing test. 3 figs.

  2. Reservoir characterization using artificial neural network; Neural network wo mochiita choryuso tokusei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Shimada, N; Kozawa, T [Japan National Oil Corp., Tokyo (Japan); Nishikawa, N; Tani, A [Fuji Research Institute Corp., Tokyo (Japan)

    1997-05-27

    Neural network is used for the prediction of porosity and permeability using logging data as reservoir characteristics, and the validity of this method is verified. For the prediction of reservoir characteristics by the use of seismic survey data, composite seismic survey records obtained by density logging and acoustic logging are used to experiment the prediction of porosity and permeability continuous along lines of wells. A 3-output back propagation network is used for analysis. There is a possibility that this technique when optimized will improve on prediction accuracy. Furthermore, in the case of characteristics mapping, 3-dimensional seismic data is applied to a carbonate rock reservoir for predicting spatial porosity and permeability. This technique facilitates the comprehensive analysis of core data, well data, and seismic survey data, enabling the derivation of a high-precision spatial distribution of reservoir characteristics. Efforts will continue for further improvement on prediction accuracy. 6 refs., 7 figs., 3 tabs.

  3. Simulation for thermal response of a spherical LPG tank; Kyukei LPG chozo tanku no netsuoto kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Hsi-jen; Lin, Mann-hsing; Chao, Fu-yuan [Tamkang University, Tamsui (Taiwan). Department of Chemical Engineering

    1999-03-05

    Liquefied petroleum gas (LPG) is a very important fuel and chemical feed stock as well; however, the hydrocarbon has been involved in many major fires and explosions. One of these accidents is boiling-liquid, expanding-vapor explosion (BLEVE). It is a phenomenon that results from the sudden release from confinement of a liquid at a temperature above its atmospheric-pressure boiling point. The sudden decrease in pressure results in the explosive vaporization of a fraction of the liquid and a cloud of vapor and mist with the accompanying blast effects. Most BLEVEs involve flammable liquids, and most BLEVE releases are ignited by a surrounding fire and result in a fireball. The primary objective of this paper is to develop a computer model in order to determine the thermal response of a spherical LPG tank involved in fire engulfment accidents. The assessment of the safety spacing between tanks was also discussed. (author)

  4. Numerical analysis on flows in supersonic air intakes. Choonsoku kuki toriireguchi no nagare no suchi kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Shimada, T.; Tamura, N.; Sekino, N.; Tsujimura, N. (Nissan Motor Co. Ltd., Tokyo (Japan))

    1992-06-25

    By applying computational fluid dynamics (CFD) to a flow in the supersonic air intake of rocket, appropriateness of computational result was confirmed from a comparison with the wind tunnel test result. In order for the air intake type rocket to heighten the combustion efficiency of fuel and air, it is important to possibly minimize the total pressure loss of air which has been taken in and maintain the air flow rate. A numerical analysis was made through modeling the sectional shape of wind tunnel test body and analyzing the two-dimensional flow by Reynolds-averaged Navier-Stokes equations. The computational result of analysis coincided well with the pressure measurement result in wind tunnel test. Having elucidated the main factors of total pressure loss in a two-dimensionally curved flow passage, the CFD computation gave a possibility that the total pressure loss is considerably low against that passage if improved in shape. If simultaneously used with a characteristic curve method, the CFD computation made it possible to optimize the pressure recovery characteristics in the axially symmetric air intake. The CFD can be expected to be an effective method of designing the basic shape of supersonic air intake. 9 refs., 14 figs.

  5. Analysis of appearance of softness for interior plastic parts; Naiso jushi buhin no soft kan kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kubota, T; Wada, T; Matsuda, M [Toyota Central R and D Laboratories Inc., Aichi (Japan); Nagata, M; Maeda, M [Toyoda Gosei Co. Ltd., Aichi (Japan)

    1997-10-01

    The Appearance of softness was evaluated using the paired comparison method for steering wheel pads. Many kinds of physical quantities of sample pads, such as the depth of wrinkles, surface roughness and gloss, were measured. Correlations between the appearance of softness and the physical quantities were analyzed. As a result, this appearance of softness was found to be characterized by four factors, the depth and slope of wrinkles, gloss and lightness. 3 refs., 4 figs., 4 tabs.

  6. Relation between front suspension layout and handling performance. Analysis depending on the Taguchi method and ADAMS; Front suspension layout to soda tokusei no kankei ni tsuite. Kiko kaiseki gengo wo mochiita hinshitsu kogaku ni yoru kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Okada, K [Daihatsu Motor Co. Ltd., Osaka (Japan)

    1997-10-01

    A variation of suspension layout gives an influence to the vehicle dynamics. Examined the suspension layout variation to make the handling performance change small. Analyzed the effect of suspension layout variation about steering response delay and gain besides the tire wear effect and movable load. 3 refs., 12 figs., 4 tabs.

  7. Fault analysis in the very shallow seismic reflection method; Gokusenso jishin hanshaho ni okeru danso kaiseki. 1

    Energy Technology Data Exchange (ETDEWEB)

    Nagumo, S; Muraoka, S; Kaida, Y; Takahashi, T [OYO Corp., Tokyo (Japan)

    1996-10-01

    To effectively use the very shallow seismic reflection for active fault survey, a method has been investigated by which fault structures can be appropriately reconstructed from the fault information detected in the original records. The first step of reconstructing the fault system from the travel time reflection curve was to grasp an outline of fault structure from the patterns of travel time curve observed in the original record. For the very shallow seismic reflection method, especially, the low velocity layers in a shallow part succeeding from the ground surface made the issue complicated. Then, the travel time reflection curves were calculated in the case of existing several horizontal reflection surfaces in the surface layer. The constant values, mean velocities to the depth at individual reflection surfaces were used for the approximation of velocities. The outline of fault structure was grasped from the observation of original record. Then, the structure was reconstructed from the travel time curves. When the mean velocity in the medium was known, reconstruction of the feature of reflection surfaces from the travel time curves could be determined by simple mapping. When the mean velocity was unknown, it was calculated using the reciprocal travel time from the common reflection surface for individual reflection surfaces. 7 figs.

  8. Wavefield analysis in inhomogeneous media by wavelet transform; Wavelet henkan ni yoru fukinshitsu baitai no hadoba kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Matsushima, J; Rokugawa, S; Kato, Y [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Yokota, T; Miyazaki, T [Geological Survey of Japan, Tsukuba (Japan); Ichie, Y [The University of Tokyo, Tokyo (Japan)

    1996-10-01

    Data processing techniques have been investigated for clarifying structures and physical properties of geothermal reservoirs in the deep underground by seismic exploration using multiple wells. They include the initial motion time-distance tomography, amplitude tomography, diffracted wave tomography, and structure imaging using reflected wave or scattered wave. When applying these data processing methods to observed records, weak and minor signals essentially required are canceled due to averaging the analytical fields. In this study, influence of inhomogeneous media on the wavefield was evaluated. Data were analyzed considering frequency by using wavelet transform by which time-frequency can be easily analyzed. From the time-frequency analysis using wavelet transform, it was illustrated that high frequency scattered waves, generated by scatterer like cracks or by irregularity on the reflection surface, arrive behind direct P-wave and direct S-wave. 5 refs., 8 figs.

  9. Causality analysis of alpha activities by multidimensional directed coherence; Tajigen yuko coherence ni yoru {alpha}ritsudo no ingasei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Sakata, O.; Shimada, N.; Shiina, T. [University of Tsukuba, Tsukuba (Japan); Saito, Y.; Imanishi, N.

    1998-07-01

    Alpha activities as a basic component of EEG (electroencephalogram) are mainly observed with eye-closed and reported state, and indicates rhythmic and diffused pattern on the scalp. Therefore analysis of the relation among many sequences of alpha activities measured at different positions on the scalp is expected to be useful not only for diagnosing psychiatric but also for investigating mechanism of brain information processing by means of causality analysis that is, macroscopic estimation of flow pattern within brain. Although coherence analysis has been proposed as a method for estimating the direction and magnitude of information flow between two sequences, superposition of results for each pair of sequences can not represent true relation among the whole sequences. In this paper, we proposed the multidimensional directed coherence analysis by modifying two-channel formula in order to apply it to the analysis of multi-channel sequence of alpha activities. Results of simulation revealed that multidimensional directed coherence can indicate more quantitatively the relation among the multi-channel sequences compared with conventional two-channel formula. Moreover, the proposed method was applied to the analysis of EEG data of normal volunteer and patient. Results show the method can provide a useful diagnostic information by assessment of the signal flow pattern within brain. 16 refs., 10 figs.

  10. Theoretical analysis of film condensation in horizontal microfin tubes; Microfin tsuki suihei kannai gyoshuku no riron kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Honda, H; Wang, H [Kyushu University, Fukuoka (Japan). Institute of Advanced Material Study; Nozu, S [Okamaya Prefectural University, Okayama (Japan). Faculty of Computer Science and System Engineering

    2000-10-25

    A theoretical study has been made of film condensation in helically-grooved, horizontal microfin tubes. The annular flow regime and the stratified flow regime were considered. For the annular flow regime, a previously developed theoretical model was applied. For the stratified flow regime, the height of stratified condensate was estimated by a modified Taitel and Dukler model. For the upper part of the tube exposed to the vapor flow, numerical calculation of Laminar film condensation considering the combined effects of gravity and surface tension forces was conducted. The heat transfer coefficient at the lower part of the tube was estimated by an empirical equation for the internally finned tubes developed by Carnavos. The theoretical predictions of the circumferential average heat transfer coefficient by the two theoretical models were compared with available experimental data for four refrigerants and four tubes. Generally, the annular flow model gave a higher heat transfer coefficient than the stratified flow model in the high quality region, whereas the stratified flow model gave a higher heat transfer coefficient in the low quality region. For tubes with fin heights of 0.16 {approx} 0.24 mm, most of the experimental data agreed within {+-} 20% with the higher of the two theoretical predictions. (author)

  11. Function of mammalian genes regulation cellular growth; Saibo zoshoku wo seigyosuru dobutsu saibo idenshi no kino kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Matsumoto, K. [Nagoya University, Nagoya (Japan)

    1995-12-15

    Intracellular signaling from receptor tyrosine kindles in mammalian cells results in activation of a signal cascade that includes the guanine nucleotide binding protein Ras and the protein kinases Raf, MEK [Mitogen activated protein kindle (MAPK) or Extracellular signal regulated kinase (ERK) kinase] and MAPK. MAPK activation that is dependent on the coupling of Ras and Raf was reconstituted in yeast. Yeast genes were isolated that, when overexpressed, enhanced the function of Raf. One of them is identical to BMH 1, which encodes a protein similar to members of the mammalian 14-3-3 family. Bacterially synthesized mammalian 14-3-3 protein stimulated the activity of Raf prepared from yeast cells expressing c-Raf-1. Thus, the 14-3-3 protein may participate in or be required for activation of Raf. 9 refs., 2 figs.

  12. Three dimensional reflection velocity analysis based on velocity model scan; Model scan ni yoru sanjigen hanshaha sokudo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Minegishi, M; Tsuru, T [Japan National Oil Corp., Tokyo (Japan); Matsuoka, T [Japan Petroleum Exploration Corp., Tokyo (Japan)

    1996-05-01

    Introduced herein is a reflection wave velocity analysis method using model scanning as a method for velocity estimation across a section, the estimation being useful in the construction of a velocity structure model in seismic exploration. In this method, a stripping type analysis is carried out, wherein optimum structure parameters are determined for reflection waves one after the other beginning with those from shallower parts. During this process, the velocity structures previously determined for the shallower parts are fixed and only the lowest of the layers undergoing analysis at the time is subjected to model scanning. To consider the bending of ray paths at each velocity boundaries involving shallower parts, the ray path tracing method is utilized for the calculation of the reflection travel time curve for the reflection surface being analyzed. Out of the reflection wave travel time curves calculated using various velocity structure models, one that suits best the actual reflection travel time is detected. The degree of matching between the calculated result and actual result is measured by use of data semblance in a time window provided centering about the calculated reflective wave travel time. The structure parameter is estimated on the basis of conditions for the maximum semblance. 1 ref., 4 figs.

  13. Inversion interpretation of the mise-a-la-masse data; Denryu den`i ho data no inversion kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Okuno, M; Hatanaka, H; Mizunaga, H; Ushijima, K [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    1996-05-01

    A program was developed for the inversion interpretation of the mise-a-la-masse data, and was applied to a numerical model experiment and to the study of data obtained by actual probing. For the development of this program, a program was used that calculated by finite difference approximation the potential produced by a linear current source, and studies were made through forward interpretation, inversion interpretation of the acquired apparent resistivity data, comparison with the true solution, accuracy and tendency, and the limitations. In the simulation of a horizontal 2-layer model, the parametric value after 20 repetitions converged with deviation of 1% or lower. This program was applied to the data from probing the Hatchobara district, Oita Prefecture, using a model wherein the target area was divided into 5 from east to west, and into 2 in the direction of depth. The result suggested that there was a large-scale low-resistivity body deep in the ground in the southeastern part of the investigated area. Furthermore, there was a spot detected in the direction of east-northeast that suggested an electric structure continuous in the direction of depth and a fault-like structure discontinuous in the transverse direction. 7 refs., 9 figs.

  14. Interferometric SAR and land deformation. Analysis using the dislocation model; Interferometric SAR to chikaku hendo. Dislocation model wo mochiita kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Matsushima, J; Otaki, T; Tanaka, A; Miyazaki, Y [Geological Survey of Japan, Tsukuba (Japan)

    1996-05-01

    The diastrophism by the earthquake-induced dislocation is investigated by interferometry (INSAR) which represents the diastrophism by the interference fringes of equiphase difference lines. A joint research group at Geographical Survey Institute and National Space Development Agency showed the diastrophism in the vicinity of the ground surfaces before and after the Hyogoken Nanbu Earthquake by the INSAR interference images in 1995. This paper discusses the effects of observation in the vision line direction from the satellite and dislocation parameters on the interference images. The dislocation model uses a slanted rectangular model in a semi-infinite medium, to calculate static displacements and strain distributions at the ground surface, when dislocation changes. It is found that the INSAR interference images, detecting displacements in the vision line direction from the satellite, significantly change as the vision line direction changes, and that the actual displacement cannot be given by the images alone. This paper also shows sensitivity of the interference images to the dislocation parameters. 3 refs., 9 figs., 1 tab.

  15. Magnetic constraints of basement structure offshore of western Kyushu, Japan; Kyushu seiho kaiiki ni okeru jiki ijo no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Okuma, S; Nakatsuka, T [Geological Survey of Japan, Tsukuba (Japan); Ishihara, T [Japan National Oil Corp., Tokyo (Japan)

    1996-05-01

    This paper describes the results from the qualitative analysis of magnetic anomalies offshore of western Kyushu and from an analysis by a three-dimensional two-layer model inversion. The analysis ranged from Kyushu on the east to Jeju Island on the west and from the southern part of the Korean Peninsula on the north to Tanegashima and Yakushima Islands on the south, namely, the area of 580km from east to west and 580km from south to north. The analytical data used was Magnetic Anomaly Map of Asia (GSJ and CCOP, 1994). In the qualitative analysis, a pseudogravity anomaly map and a pole gravity anomaly map were prepared from the total magnetic force anomaly map by means of a frequency filter operation. As a result, it was noted that two distinctive magnetic high belts existed in the margin of the Tunghai Shelf, extending from the sea area to the west of the Nansei Islands continuously to NNE, and being distributed transversely through the Goto sedimentary basin. Additionally, in the inversion analysis, it was demonstrated that the magnetic basement became shallow at the margin of the Tunghai Shelf north of latitude 31 degrees north, extending nearly in the NNE direction through west of the Goto Islands, west of Tsushima Island, and continuing to the southern coast of the Korean Peninsula. 6 refs., 4 figs.

  16. Preliminaries on core image analysis using fault drilling samples; Core image kaiseki kotohajime (danso kussaku core kaisekirei)

    Energy Technology Data Exchange (ETDEWEB)

    Miyazaki, T; Ito, H [Geological Survey of Japan, Tsukuba (Japan)

    1996-05-01

    This paper introduces examples of image data analysis on fault drilling samples. The paper describes the following matters: core samples used in the analysis are those obtained from wells drilled piercing the Nojima fault which has moved in the Hygoken-Nanbu Earthquake; the CORESCAN system made by DMT Corporation, Germany, used in acquiring the image data consists of a CCD camera, a light source and core rotation mechanism, and a personal computer, its resolution being about 5 pixels/mm in both axial and circumferential directions, and 24-bit full color; with respect to the opening fractures in core samples collected by using a constant azimuth coring, it was possible to derive values of the opening width, inclination angle, and travel from the image data by using a commercially available software for the personal computer; and comparison of this core image with the BHTV record and the hydrophone VSP record (travel and inclination obtained from the BHTV record agree well with those obtained from the core image). 4 refs., 4 figs.

  17. MT2-D inversion analysis in Kakkonda geothermal field; Kakkonda chinetsu chiiki ni okeru MT ho nijigen kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Yamane, K; Takasugi, S [Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Miyazaki, S [Japan Metals and Chemicals Co. Ltd., Tokyo (Japan); Uchida, T [New Energy and Industrial Technology Development Organization, Tokyo, (Japan)

    1996-05-01

    Data, collected from an MT method-assisted survey conducted in the Kakkonda geothermal region in 1987, was re-examined, and a new structure was found. The review was carried out by use of a 2D analysis in the TM mode. According to the 1D analysis of 1987 and the geological data gathered then, it is estimated that the resistivity structure of this region runs in the northwest-southeast direction. A northeast-southwest traverse line was set for this analysis, orthogonal to the strike, and the impedance at each observation spot was caused to rotate to this direction across the whole range of frequency. Furthermore, in 1994-95, surveys were conducted using arrayed CSMT/MT methods. All these sum up to indicate that a high-resistivity region extends northwest in the southwestern part of the Kakkonda river but that there exists a low-resistivity region of several 10 Ohm m centering about the B traverse line. The high-resistivity region deep in the ground being the target of excavation in the Kakkonda region, to collect knowledge about this high-resistivity is important, and here the effectiveness of the 2d analysis has been verified. 5 refs., 11 figs.

  18. Improvement of two-dimensional gravity analysis by using logarithmic functions; Taisu kansu wo mochiita nijigen juryoku kaiseki no kairyo

    Energy Technology Data Exchange (ETDEWEB)

    Makino, M; Murata, Y [Geological Survey of Japan, Tsukuba (Japan)

    1996-05-01

    An examination was made, in the two dimensional tectonic analysis by gravity exploration, on a method that was applicable from a deep underground part to a shallow geological structure by using logarithmic functions. In the examination, a case was considered in which an underground structure was divided into a basement and a covering formation and in which the boundary part had undulations. An equation to calculate a basement structure from a gravity anomaly was derived so that, taking into consideration the effect from the height of an observation point, it might be applicable to the shallow distribution of the basement depth. In the test calculation, a model was assumed reaching the depth near the surface with the basement being a step structure. Density difference was set as 0.4g/cm{sup 3}. An analysis using an equation two-dimensionally modified from Ogihara`s (1987) method produced a fairly reasonable result, showing, however, a deformed basement around the boundary of the step structure, with the appearance of a small pulse-shaped structure. The analysis using logarithmic functions revealed that the original basement structure was faithfully restored. 3 refs., 5 figs.

  19. Structural study of synthetic polymers by MALDI-TOFMS; MALDI-TOFMS ni yoru gosei kobunshi no kozo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Noguchi, K.; Hirayama, K. [Ajinomoto Co. Inc., Tokyo (Japan)

    1998-08-01

    As observation results on the time-dependent change in the ring-opening reaction of novolac epoxy resin with acetic acid by MALDI-TOFMS, the epoxy ring was opened with reaction time, the hydroxy group formed by the ring-opening reaction was acetylated, those components were measured. In the case of the FABMS/MS observation of materials and the reaction products, the estimation structure could be confirmed from the measured results of MALDI-TOFMS. In the polymerization of bisphenol A epoxy resin with N, N`-dimethylethylenediamine, it was observed by MALDI-TOFMS that many kinds of polymers with high molecular weight were formed with an increase of reaction time. In this case, the LSIMS/MS observation of materials and the reaction products was carried out, the estimation structure could be confirmed from the measured results of MALDI-TOFMS. 19 refs., 8 figs.

  20. Diode laser pumped solid state laser. Part IV. ; Noise analysis. Handotai laser reiki kotai laser. 4. ; Noise kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Sakurai, H.; Seno, T.; Tanabe, Y. (Asahi Glass Co. Ltd., Tokyo (Japan))

    1991-06-10

    Concerning the second harmonic generation(SHG) of diode laser pumped solid state laser using a nonlinear optical material, the researches are carried out to pracitically apply to the optical pickup. Therefore, the reduction of output optical noise has become the important researching subject. The theoretical and experimental analyses of noise generating mechanism were carried out for the system in which Nd;YAG as the laser diode and KTP (KTiOPO {sub 4}) as the nonlinear optical crystal were used. The following findings for the noise generating mechanism could be obtained: The competitive interaction between the polarization modes was dominant noise mechanism in the high frequency range from 1 to 20MHz and the noise could be removed sufficiently by using the QWP(quarter wave plate). On the other hand, the noise observed in the low frequency range from 100 to 200kHz depended on the resonance length, agreed qualitatively with the theoretical analysis of the noise to the competitive longitudinal modes and agreed quantitatively with the noise generating frequency range. 10 refs., 13 figs., 1 tab.

  1. Defect detection of elevator wire rope by using wavelet analysis; Wavelet kaiseki ni yoru elevator rope no sonsho kenshutsu

    Energy Technology Data Exchange (ETDEWEB)

    Kaneda, M.; Kawata, A.; Hayashi, S. [Kansai University, Osaka (Japan). Faculty of Engineering; Tokui, K. [Mitsubishi Electric Building Techno-Service Co. Ltd., Tokyo (Japan)

    1998-10-31

    Detecting strand breakage and local wear of elevator wire rope uses currently a method using a rope tester. This method magnetizes a rope with electric magnet and detects defected part as leakage flux. Pulsed signals are issued from the defected part, variation in magnetic flux leakage due to rope swinging produces noise, and both get mixed together. Therefore, the detection is performed finally by visual check and palpation. This paper discusses a method that analyzes measurement data derived by the rope tester by using wavelet conversion, and detects the defected part automatically without being confused by noise. The pulsed signals generated from the defected part can be detected from noise by decomposing multiplex resolution using the Haar basis. As a result of the experiment, cases that may be overlooked in visual check because of S/N ratio being too small or the pulsed signals being too weak were all detected. 11 refs., 14 figs.

  2. Structure analysis of ultra-thin films. STM/AFM. Chousumaku no kozo kaiseki. STM/AFM

    Energy Technology Data Exchange (ETDEWEB)

    Nozoe, H; Yumura, M [National Institute of Materials and Chemical Research, Tsukuba (Japan)

    1994-03-30

    Fullerene (C60) and carbon nanotubes are expected as new carbon structures. This article describes the observation results of C60 and carbon nanotubes by means of STM (scanning tunnel microscope). The STM images of C60 thin films are illustrated, which have been obtained by annealing at 290 centigrade. It was confirmed that C60 monomolecular thin films are formed which conform to the substrate and have high regularity. The step height of C60 monomolecular thin films coincided with the step height of Cu (111) plane, which suggested that the step of films is reflected in that of Cu substrate. For the STM images under bias voltages, various images of C60 with three-fold axis of symmetry were observed. On the other hand, from STM observation of carbon nanotubes with diameter of about 30 nm which were separated and purified from the cathode deposits during the preparation process of C60, it was found that they have concentric multilayer structure. 18 refs., 7 figs.

  3. FY 1999 report on the results on analysis of protein functions; 1999 nendo tanpakushitsu kino kaiseki seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    This project is aimed at construction of the intellectual infrastructures for biotechnologies, in order to accelerate development of the Japanese technologies and activate their application to industries. Described herein are the FY 1999 results. These infrastructures are for functional analysis of protein which will be one of the key issues in genome analysis, and collection and analysis of biological information. This project includes a total of 9 research and development themes for four research categories: frequency analysis of gene expression (development of the gene expression profile database system for functional analysis of human genome, and analysis of the gene expression and protein functions by the ECA chip technology), function analysis by the biological model (high-performance analysis by the bio-project, database system for drug metabolizing enzymes, analysis of gene functions using mutant mice, and simple genome function analysis of murine individuals using the RNAi effect), protein expression (function validation of unknown human genes based on the useful biological model, and protein function analysis using multi-purpose destination vectors), and protein function prediction by the information science method. (NEDO)

  4. Electromagnetic analysis of HTSC by advanced fluxoid dynamics method; Kairyogata jisoku ryoshi doryokugakuho ni yoru koon chodendotai no denji kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Demachi, K.; Nakano, M.; Miya, K. [The Univ. of Tokyo, Tokyo (Japan). Graduate School of Engineering

    2000-05-29

    In this study, the improved fluxoid quantum dynamics method which applied the handling of the lattice in the lattice gas automaton method into the fluxoid quantum dynamics was developed. The saving of a memory capacity and the speedup of the calculation were carried out. Using a BSCCO single crystal which introduced a pinning center by the heavy ion irradiation as an analysis object, the validity of this technique was shown by the comparison with the experimental result. By the improved fluxoid quantum dynamics method, the space was made discrete by the triangular lattice in the two-dimensional system. The fluxoid quantum exists only on the lattice point, and received the force from the fluxoid quantum, the Meissner magnetic field and the pinning center in the circumference, and then moved to the 6 neighboring lattice points. Since the pattern of the positional relation of the fluxoid quantum was limited by the use of triangular lattice, the high-speed computation became possible by storing the interaction force into a database. The dependence for the radiation value of the torque in the axial type super-conductive magnet bearings was analyzed, and the possibility of the rotational loss control by the heavy ion irradiation was shown. (NEDO)

  5. Structural analyses of very large semi-submersibles in waves; Choogata hansensuishiki futai no harochu kozo oto kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Iijima, K.; Yoshida, K.; Suzuki, H. [The University of Tokyo, Tokyo (Japan)

    1997-08-01

    An analysis method in which the technique of a vehicle obtained when a three-dimensional singular point distribution method and Kagemoto`s mutual interaction theory are combined was expanded for the fluid area was proposed as the structural analysis of very large semi-submersibles in waves. A partial structure method is used for the structure. In a fluid area, the number of unknown quantities appearing in a final expression could be largely reduced by introducing the new concept of a group body. In this process, both hydro-elasticity and hydrodynamic mutual interaction are considered. As a result, floating bodies that could not be previously calculated can be modeled as a three-dimensional frame structure and the response analysis in waves can be carried out without damaging the accuracy. The calculation result is used as the input data required for analyzing the structural fatigue locally during structural design of very large semi-submersibles in the 3,000 (m) class. This study can present a series of procedures between the response analysis of very large floating bodies in waves and the structural design. 11 refs., 14 figs., 1 tab.

  6. Numerical analysis of macro-crack formation behavior within the lump coke; Cokes sonai kiretsu shinten kiko no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Aoki, H; Sato, H; Miura, T [Tohoku University, Sendai (Japan). Faculty of Engineering

    1995-03-15

    The thermal stress analysis within lump coke was studied in order to investigate macro-crack formation and deformation behavior which strongly influence heat and mass transfer in a coke oven chamber. The dilatation of plastic layer, heating rate dependence of thermophysical and mechanical properties of coal/coke, creep in the plastic and semi-coke layers, macro-crack propagation and radiative heat transfer within the macro-crack were considered in an analytical model. The macro-crack propagation was determined from the estimated crack tip stress intensity factor, K{sub I}, at the macro-crack tip compared with the plane strain fracture toughness, K{sub IC}, through the unsteady-state calculation. Calculated results on crack formation and deformation behavior of lump coke were in good agreement with experimental observations in a laboratory-scale oven chamber. The analytical model could predict micro-crack formation within the lump coke normal to the heated wall and the coke surface close to the heated wall. 12 refs., 13 figs.

  7. Consideration on characteristics of faults distributed at around Fujigawa river mouth; Fujigawa kako shuhen ni okeru danso kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Iwashita, A; Misawa, Y [Tokai University, Tokyo (Japan)

    1997-10-22

    From the sonic prospecting on the ground, it was confirmed that faults distributed in the inner part of Suruga Bay extend near the Fujigawa river mouth. While, faults in the sea bottom were found by the sonic prospecting using a single air-gun. However, continuity of faults running from the land to the sea has not been reported. This paper describes the continuity of Fujigawa fault system running from the land to the sea around Fujigawa river mouth along the subduction zone of Philippine Sea Plate using single air-gun seismic reflection records. Locations of the faults can be expressed as fracture information of linearment obtained from the satellite remote sensing images, which agreed well with those found by the Active Fault Research Association. As a result of the image processing, they agreed distinctly with the topography of Fujigawa fault system. Thus, much more accurate analysis can be performed by comparing the regional information by the remote sensing with the sonic seismic reflection profiles. 3 refs., 2 figs.

  8. Fault analysis in the very shallow seismic reflection method. Part 3. Migration; Gokusenso hanshaho ni okeru danso kaiseki. 3. Migration

    Energy Technology Data Exchange (ETDEWEB)

    Nagumo, S; Muraoka, S; Takahashi, T [OYO Corp., Tokyo (Japan)

    1997-10-22

    Concerning the analysis of data obtained by the seismic reflection method, migration in the very shallow layer is discussed. When the dip angle of the reflection plane involved is disclosed by DMO conversion, the amount of migration (travelling sideways) can be calculated by use of simple geometrical formulas though on the presumption that the sector velocity is constant. Categorized into this technique are such methods as DMO conversion migration, direct dip migration, F-K method, and finite difference method. This means that waveforms are not damaged by migration processing although elongation occurs due to time base conversion. When it is taken into account that waveform distortion is generally grave in the migration related methods widely in use, this feature has to be said valuable in holding information on faults. This is especially advantageous in the very shallow layer because the amount of migration is proportionally larger when the level is deeper and, in addition, migration processing is useful when it is necessary to know more accurately the character of the fault plane. 8 figs.

  9. Reflector imaging by diffraction stacking with stacking velocity analysis; Jugo sokudo kaiseki wo tomonau sanran jugoho ni yoru hanshamen imaging

    Energy Technology Data Exchange (ETDEWEB)

    Matsushima, J; Rokugawa, S; Kato, Y [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Yokota, T [Japan National Oil Corp., Tokyo (Japan); Miyazaki, T [Geological Survey of Japan, Tsukuba (Japan)

    1997-10-22

    Concerning seismic reflection survey for geometrical arrangement between pits, the scattering stacking method with stacking velocity analysis is compared with the CDP (common depth point horizontal stacking method). The advantages of the CDP supposedly include the following. Since it presumes an average velocity field, it can determine velocities having stacking effects. The method presumes stratification and, since such enables the division of huge quantities of observed data into smaller groups, more data can be calculated in a shorter time period. The method has disadvantages, attributable to its presuming an average velocity field, that accuracy in processing is lower when the velocity field contrast is higher, that accuracy in processing is low unless stratification is employed, and that velocities obtained from stacking velocity analysis are affected by dipped structures. Such shortcomings may be remedied in the scattering stacking method with stacking velocity analysis. Possibilities are that, as far as the horizontal reflection plane is concerned, it may yield stack records higher in S/N ratio than the CDP. Findings relative to dipped reflection planes will be introduced at the presentation. 6 refs., 12 figs.

  10. Aircraft fatigue failures and duties of structural reliability analysis. Kokuki kozo no hiro hakai to kozo shinraisei kaiseki no yakuwari

    Energy Technology Data Exchange (ETDEWEB)

    Fujiwara, G [Japan Airlines Co. Ltd., Tokyo (Japan)

    1992-10-05

    The use of a commercial jet transport airplane over its life of 20 years has been increasing because of intestified competition after cancellation of the regulations. It is necessary that users of the airplane adopt such a positive way as they themselves maintain safety of their airplanes rather than they wait for feedback or technical instructions from manufacturers. This paper outlines the points at issue regarding the problem of fatigue strength which is fundamental to the safety problem, explaining by various examples that the fatigue strength problem includes phenomena of which theoretical elucidation has not been obtained. Consequently, some points to be paid attention to are cited. For instance, in the analysis of reliability in case of determining the period for initial inspection (safety life), reliability should be 95-99% which have been advised by Boeing and others, even if confidence level is 95% as usual In case of considering a fleet number in the reliability analysis, the fleet number should be reflected by grouping significant in fatigue analysis. 30 refs., 10 figs., 1 tab.

  11. Numerical analysis of a horizontal axis wind turbine rotor with winglets; Winglet wo motsu suiheijiku fusha no suchi kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Hasegawa, Y.; Kikuyama, K.; Imamura, H. [Nagoya University, Nagoya (Japan)

    1996-08-25

    The objective of present study is to show the aerodynamic effectivity of a horizontal axis wind turbine rotor blades with winglets by means of numerical analysis. The winglet used in this study is considered to be an inclined extension of the blade. For the numerical analysis a vortex lattice method with a free wake model was used because the model can be fitted to an arbitrary blade shape and needs no empirical parameter about wake geometry. The calculations were made on the flow field in the rotor wake and the rotor performance, and the results were compared between the rotors with and without winglets. In order to examine the structural effects, the flap bending moment was also compared. The results shows that small installation angle of winglets is found to cause a larger increase in the power coefficient and a smaller increase in the flap bending moment than radially extended rotor blades. 11 refs., 13 figs., 1 tab.

  12. Study of nozzle deposit formation mechanism for direct injection gasoline engines; Chokufun gasoline engine yo nozzle no deposit seisei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kinoshita, M; Saito, A [Toyota Central Research and Development Labs., Inc., Aichi (Japan); Matsushita, S [Toyota Motor Corp., Aichi (Japan); Shibata, H [Nippon Soken, Inc., Tokyo (Japan); Niwa, Y [Denso Corp., Aichi (Japan)

    1997-10-01

    Nozzles in fuel injectors for direct injection gasoline engines are exposed to high temperature combustion gases and soot. In such a rigorous environment, it is a fear that fuel flow rate changes in injectors by deposit formation on nozzles. Fundamental factors of nozzle deposit formation were investigated through injector bench tests and engine dynamometer tests. Deposit formation processes were observed by SEM through engine dynamometer tests. The investigation results reveal nozzle deposit formation mechanism and how to suppress the deposit. 4 refs., 8 figs., 3 tabs.

  13. Analysis of mixture formation of direct injection gasoline engine; Tonai funsha gasoline engine no kongoki keisei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kano, M; Saito, K; Basaki, M [Nippon Soken, Inc., Tokyo (Japan); Matsushita, S; Gono, T [Toyota Motor Corp., Aichi (Japan)

    1997-10-01

    On direct injection gasoline engine, in order to achieve good stratified combustion, the extremely advanced control of air-fuel mixture is required. For this purpose, the method of diagnosing the quality of the state of mixture formation in combustion chambers becomes necessary. In this research, the state of air-fuel mixture in the combustion chamber of a TOYOTA D-4 was analyzed in space and time by visualization, A/F multi-point measurement and A/F high response measurement, thus the effects that injection timing, swirl and fuel pressure exerted to mixture formation were elucidated. 3 refs., 17 figs., 1 tab.

  14. Analysis of axial behavior of three piece oil control ring; Kumiawase oil ring no jikuhoko kyodo no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Tateishi, Y; Fujimura, K; Hitosugi, H [Nippon Piston Ring Co. Ltd., Tokyo (Japan)

    1997-10-01

    It is considered that the reduction of oil control ring tension is a major problem in reducing the friction-loss of internal combustion engines. The authors have successfully developed a calculating method for the axial behavior prediction of a three piece type oil control ring as a method used in reduction of lube-oil consumption when lower tension ring is used. By means of the method, the authors found that the effect in reduction of lube-oil consumption was able to be expected by optimizing design parameters of the oil ring, the tension and the seating tab angle of expander-spacer, and the gas pressure on the 3rd land. 3 refs., 14 figs.

  15. Analysis of fuel spray characteristics for premixed lean diesel combustion; Kihaku yokongo diesel kikan ni okeru nenryo funmu kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Sasaki, S; Harada, a; Miyamoto, T; Akagawa, H; Tsujimura, K

    1997-10-01

    Premixed lean diesel combustion (PREDIC) makes it possible to achieve low NOx emission. It is an important factor to make the homogeneous spray formation for PREDIC. In this paper presents I the effect of the spray dispersion on emission characteristic were analyzed with the spray observation and engine test. Pintle type nozzle, which has different feature from orifice type nozzle, are used to form the hollow cone spray. As a result, the pintle type nozzle having grooves to generate the swirl flow, makes the reduced penetration in comparison with the hole nozzle under low ambient gas pressure. And it could improve THC, CO emissions at low NOx emission condition. 7 refs., 12 figs., 1 tab.

  16. CFD analysis of flow in engine compartment of large urban bus; Ogata bus no engine room nai nagare kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Hoshino, H; Otake, M; Iioka, K [Nissan Diesel Motor Co. Ltd., Saitama (Japan); Sato, K [Subaru Research Center Co. Ltd., Tokyo (Japan)

    1997-10-01

    A CFD simulation was performed to analyze the air flow in the engine compartment of a large urban bus. The conventional simulation technique takes a long time to perform the parameter study of a complex engine compartment shape. In this study, the use of orthogonal grids made modeling the engine compartment easy, so parameter study on modification of the engine compartment structure could be conducted in a short time. Thus this simulation enables engineers to more clearly understand the air flow patterns in the engine compartment, and to get guidlines for modifying the compartment structure to improve the cooling performance. 1 ref., 12 figs.

  17. Characterization of surface layers of aluminum alloys for automobile body panels; Jidoshayo aluminium gokin no hyomen kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Mizuno, K; Takagi, Y [Nippon Steel Corp., Tokyo (Japan)

    1996-03-29

    This paper reports analytical examples, on an oxidized film on the surface of aluminum alloys for automobiles, using the conventional method for a surface analysis or a new method entirely different from it. For example, (1) a new method was proposed which evaluated the thickness of MgO layers on the surface of Al-Mg alloy by means of a colorimeter. In the case where the thickness of the oxidized film was several tens of nanometers or less, the chromatic value of L, b, etc., and the thickness of the films were in one-to-one correspondence to each other; therefore, the MgO film was easily estimated non-destructively by measuring the chromatic values of the surface. (2) An analysis was made on the state of adhesion of the organic matters in the oxidized film on Al-Mg-Si alloy by means of an angle-resolved XPS (X-ray photoelectron spectroscopy) depth analysis. Consequently, it was elucidated that a fatty film adhered with hydrophilic groups faced to the oxidized surface and with hydrophobic groups faced to the outside, and that this adhered fatty acid also formed a metallic soap by a heat treatment, deteriorating the fattiness. Further, the paper also reports on the analysis of crystal structures on the surface layer with the use of GIXD (grazing incidence-angle X-ray diffraction). 22 refs., 15 figs.

  18. Photometric analysis on concentration characteristics of Fresnel lenses; Fotometoriho wo mochiita Fresnel lens no shuko tokusei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, A [Tokyo University of Agriculture and Technology, Tokyo (Japan)

    1997-11-25

    Light concentration characteristics of Fresnel lenses were analyzed by using photometry. Light concentrating systems include a reflective system represented by a rotary parabolic mirror, and a refractive system represented by the Fresnel lens. The refractive system has a focused section broadened as much as the dispersion effect in association with refraction, and cannot derive a focus with high magnification as compared with the reflective system which can achieve it. The refractive system causes reduction in collected light intensity to about half on a parax, hence a large amount of loss. However, the system can be made available inexpensively due to mass production by using mold formation. Although it is difficult to utilize all of the light, 95% of the received radiation is concentrated in an opening area with a radius of about 4G (G is a radius of an image of solar light at a focus plane which passes through the center of a Fresnel lens). The average magnification of light concentration at this time in the opening area reaches 390 times. When a 3-D compound parabolic concentrator (CPC) with a radius of 4G is placed on a lens focus as a secondary light concentrator, the final magnification of light concentration shows a value of about 2700 times, whereas restoration of 39% is possible, as compared with a rotary parabolic mirror. The system has sufficient possibility to be used for high-temperature light concentration. 3 refs., 5 figs., 1 tab.

  19. Water quality and water pollution sources in Poyang lake, China; Poyang ko ni okeru suishitsu chosa to odakugen kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Ito, M. [Shin-Nippon Meteorological and Oceanographical Consultant Co. Ltd., Tokyo (Japan)

    1996-01-10

    This paper summarizes the current status of water quality and pollution sources in Poyang Lake in China. The lake is located in Chianghsi Province of China, and a largest fresh water lake in China that flows out into the Yangtze river. The basin is surrounded by mountains on three sides and faces the Yangtze on one side, whereas the plains formed by the lake and the rivers flowing in extends in the center of the basin. The plains around the lake has the city of Nanchang, the capital of the province, the city of Jiujiang (both cities have a population of about 4 million, respectively), and four other cities with a size of one million people including Jingdezhen. Water supply system in the basin is used in a 37% area of the urban areas, and no sewage facilities of whatsoever are available as of 1991. The lake has COD of about 3 mg{times}1/l. No severe pollution by organic matters is seen. While the T-P concentration is at a high level, PO4-P is low. Majority of phosphorus flowing into the basin exists in the form trapped in soil particles. In order to maintain the current water quality in the future, waste water treatment is required in the basin. Construction of an oxidation pond in the vast land exposed during the drought period is a measure that can be tackled relatively easily. 1 fig., 4 tabs.

  20. Three-dimensional analysis of the magnetic structure in Hokkaido, Japan; Hokkaido no sanjigen jiki kozo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Makino, M [Geological Survey of Japan, Tsukuba (Japan)

    1996-10-01

    The magnetic structure in Hokkaido was quantitatively analyzed by the magnetic anomaly distribution. This paper describes its characteristics. Detection of structural boundaries and 3-D analysis of double-layer structure were conducted for the regional magnetic data in a region with about 500 km square. There was not so large difference in patterns of magnetic anomaly distribution between the case that the direction of magnetization was set at 45{degree} to the west during the geomagnetic conversion according to Segawa and Oshima and the case that it was set as same as the current geomagnetic direction. The method of Blakely and Simpson was useful to detect the boundaries of magnetic structures. The structural boundaries obtained were more linear than the iso-magnetic contour lines. A new method has been conceived in which the approximation of 3-D magnetic structure analysis can be deduced, and the irregularity of magnetic basement can be determined by the repeated calculation. In practice, this method was applied to the magnetic data in the whole Hokkaido. The calculation was stably converged. It was found that the magnetic structure obtained in the Kamuikotan/Ishikari-Kitakami magnetic belt exhibited a fault structure having steep slopes accompanied by the basin structure in the western boundaries. 19 refs., 6 figs.

  1. Relation between frequency of seismic wave and resolution of tomography; Danseiha tomography kaiseki ni okeru shuhasu to bunkaino no kankei

    Energy Technology Data Exchange (ETDEWEB)

    Fujimoto, M; Watanabe, T; Ashida, Y; Sassa, K [Kyoto University, Kyoto (Japan). Faculty of Engineering

    1997-05-27

    With regard to the elastic wave exploration, discussions have been given on the relationship between frequency and resolution in P-wave velocity tomography using the initial travel time. The discussions were carried out by using a new analysis method which incorporates the concept of Fresnel volume into tomography analysis. The following two arrangements were used in the calculation: a cross hole arrangement, in which seismic source and vibration receiving points were arranged so as to surround the three directions of a region extending 250 m in the horizontal direction and 500 m in the vertical direction, and observation is performed between two wells, and a permeation VSP arrangement in which the seismic source is installed on the ground surface and receiving points installed in wells. Restructuring was performed on the velocity structure by using a total of 819 observation travel times. This method has derived results of the restructuring according to frequencies of the seismic source used for the exploration. The resolution shown in the result of the restructuring has become higher as elastic waves with higher frequency are used, and the size of the structure identified from the restructuring result has decreased. This fact reveals that sufficient considerations must be given on frequencies of elastic waves used according to size of objects to be explored. 4 refs., 4 figs.

  2. Fault analysis in the very shallow seismic reflection method. 2; Gokusenso hanshaho ni okeru danso kaiseki. 2

    Energy Technology Data Exchange (ETDEWEB)

    Nagumo, S; Muraoka, S; Takahashi, T [Oyo Corp., Tokyo (Japan)

    1997-05-27

    Fault analysis is required in addition to the ordinary process of structural analysis (CDP stacking) for the examination of discontinuity in the reflection horizon in question. The fault shape restoration principle is that the reflection point of a reflection wave observed at a certain receiving point is on an ellipse with the shock point and receiving point at its focal points and that the sum of the distances between the reflection point and the focal points is equal to the reflection wave propagation time. The DMO velocity is worked out by calculation using the positive travel time and inverse travel time from the common reflection surface. When the reflection surface is inclined by {theta}, the average interval velocity/cos{theta} is called the DMO velocity. When the reflection surface inclination and the average interval velocities are determined separately in this way, the position of the reflection point may be worked out, and this enables the calculation of the amount of migration (lateral movement). The reflection wave lineups carried by the original record are picked up one by one, and the average interval velocities are treated very prudently. After such a basic DMO conversion treatment, the actualities of the fault are described fairly correctly. 3 figs.

  3. Practical applications of superconducting technology; Chodendo gijutsu to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Hoshino, M.; Yamamoto, K.; Urata, M. [Toshiba Corp., Tokyo (Japan)

    1995-11-01

    Remarkable progress has been made in superconducting technology recently. This paper describes the details and technical features of every cooling type of practical superconducting magnet (SCM), including the SCM for magnetic resonance imaging (MRI), SCM for semiconductor pulling devices, high-field SCM, SCM for magnetically confined plasma devices, and SCM for particle detectors. Commercial production of pool-boil-cooled SCMs has been realized by reducing helium evaporation and decreasing the frequency of helium pouring. The development of forced-cooled SCMs has made it possible to build large SCMs. Moreover, the development of the 4 K-GM refrigerator has enabled liquid-helium-free SCMs to be introduced. Since this type of SCM can be operated merely by turning on a switch, SCMs are expected to come into more widespread use. 7 refs., 1 fig.

  4. Automobiles and safety; Jidosha gijutsu. Jidosha to anzen

    Energy Technology Data Exchange (ETDEWEB)

    Kawakami, K.; Goto, T.; Shimizu, T.; Yamanaka, A. [Toyota Motor Co. Ltd., Aichi (Japan)

    1998-08-01

    The number of road traffic victims in Japan has been above the level of 10,000 annually during 8 consecutive years, but in 1996 and 1997, it becomes below this level. The casualty of road traffic accidents is found to be occurred during driving and senior persons account for a large part among victims while 55.1% of the case took place at night. As for the countermeasures, it is possible to indicate the regulatory strengthening, advancement of accident investigation and analysis, provision of safety information to the user and research and development of advanced safety vehicle (ASV). Concerning preventive safety, studies on the human recognition, systems for assisting judgement and running and so on can be enumerated. The ASV is in the course of 2nd program that lasts until 2001 with 6 safety research subjects such as prevention, collision, automatic operation, containment of disaster from expanding and so forth. In terms of post-accident safety, remarkable research and development have been conducted on collision by means of dummy and human body, human resistance against injury, air bag for rider protection and child seat, and especially the form comparison of interior materials for head protection apparatus as well as study via simulation, together with commercialization of side bag for reducing head damages. As for car body materials, energy absorption by pillar type elements, use of aluminum materials, resistance comparison and design concept of structural separation and so on are being carried out. 69 refs., 1 fig.

  5. High-level water purifying technology. Kodo josui shori gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Tsugura, H; Tsukiashi, K [Meidensha Corp., Tokyo (Japan)

    1993-07-01

    Research and development have been carried out on a high-level water purifying system using ozone and activated charcoals to supply drinking water free of carcinogenic matters and odors. This system comprises a system to utilize ozone by using silent discharge and oxygen enriching device, and a living organism/activated charcoal treatment system. The latter system utilizes living organisms deposited on activated charcoal surfaces to remove polluting substances including ammonia. The treatment experimenting equipment comprises an ozone generating system, an ozone treating column, an activated charcoal treating column, an ozone/activated charcoal control device, and a water amount and quality measuring system. An experiment was carried out using an experimental plant with a capacity of 20 m[sup 3]/day on water taken from the sedimentation process at an actual water purifying plant. As a result, trihalomethane formation potential was removed at about 40% in the ozone treatment, and at 70% in the whole treatment combining the ozone and living organism/activated charcoal treatments. For parameterization of palatability of water, a method is being studied that utilizes nuclear magnetic resonance to investigate degrees of water cluster. The method is regarded promising. 1 ref., 4 figs.

  6. Photon technology. Laser processing technology; Photon technology. Laser process gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Survey has been conducted to develop laser processing technology utilizing the interaction between substance and photon. This is a part of the leading research on photon technology development. The photon technology development is aimed at novel technology development highly utilizing the quantum nature of photons. In the field of laser processing, high quality photons are used as tools, special functions of atoms and molecules will be discovered, and processing for functional fabrication (photon machining) will be established. A role of laser processing in industries has become significant, which is currently spreading not only into cutting and welding of materials and scalpels but also into such a special field as ultrafine processing of materials. The spreading is sometimes obstructed due to the difficulty of procurement of suitable machines and materials, and the increase of cost. The purpose of this study is to develop the optimal laser technology, to elucidate the interaction between substance and photon, and to develop the laser system and the transmission and regulation systems which realize the optimal conditions. 387 refs., 115 figs., 25 tabs.

  7. Automotive technology. ; Chassis. Jidosha gijutsu. ; Chassister dot sharyo seigyo sochi

    Energy Technology Data Exchange (ETDEWEB)

    Ota, K.; Mor, H.; Ishizeki, S. (Fuji Heavy Industries Ltd., Tokyo (Japan))

    1990-07-01

    According to the trend of car suspensions announced in 1989, not only sports cars but also sedans have extensively applied a multi-link type and a double-wishbone type which are to improve operation stability and comfortableness by reexamining all their fundamental structures. Active suspensions with electronic control have been put to practical use and adopted for the first time to mass-produced cars such as INFINITI'' and CELICA''. Concerning steerings, most types of light cars are now equipped with power steerings. Moreover, application of air bags has increased, and safety has been improved by commercialization of the first mechanical air bags in addition to the conventional electrical ones. As for brakes, more anti-lock brakes have been used for 4WD cars and low-displacement cars. Motorcars with a traction control system have consequently increased. Thus both the anti-lock brakes and the traction control system are contributing to the improvement in safety. 17 figs., 2 tabs.

  8. Microbial EOR technology; Biseibutsu EOR gijutsu no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Taguchi, M.; Yonebayashi, E. [Tech. Research Center, Japan National Oil Corp., Tokyo (Japan)

    1995-11-10

    This paper describes attempts of establishing an oil recovery technology utilizing microorganisms and of aiming at improving the practicability of that technology. Fiscal 1994 has investigated effects of inorganic salts existing in reservoir beds and NaCl concentrations on proliferation of microorganisms and production of metabolites. The investigation was intended to discuss applicability of microorganisms to environments that are brought closer to actual field conditions. Furthermore, a core sweeping test using sandstone was carried out on the fiscal 1992 separated bacteria, the 4118 bacteria, that has high surfactant production capability. In addition, a sand pack was used to perform a flooding experiment under conditions of 50{degree}C and 50 KSC to evaluate functionality of microorganisms when environments in the reservoir bed are simulated with respect to pressures and temperatures. An oil recovering experiment was carried out using a sandstone with a diameter of 1.5 inches, a length of 1.0 foot and permeability of 600 md, and using Bacillus subtilis 4118 bacteria which attained the lowest interfacial tension among the bacteria examined. A recovery rate of 4.4% Sor was derived in the experiment. A recovery rate of 29.0% Sor at maximum was obtained when Bacillus licheniformis 18-2-a bacteria was supplied into a sand pack filled with silica sand. 20 figs., 7 tabs.

  9. Photon technology. Laser process technology; Photon technology. Laser process gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    For developing laser process technology by interaction between substance and photon, the present state, system, R and D issues and proposal of such technology were summarized. Development of the photon technology aims at the modification of bonding conditions of substances by quantum energy of photon, and the new process technology for generating ultra- high temperature and pressure fields by concentrating photon on a minute region. Photon technology contributes to not only the conventional mechanical and thermal forming and removal machining but also function added machining (photon machining) in quantum level and new machining technology ranging from macro- to micro-machining, creating a new industrial field. This technology extends various fields from the basis of physics and chemistry to new bonding technology. Development of a compact high-quality high-power high-efficiency photon source, and advanced photon transmission technology are necessary. The basic explication of an unsolved physicochemical phenomenon related to photon and substance, and development of related application technologies are essential. 328 refs., 147 figs., 13 tabs.

  10. Technique of CWM distribution system; CWM ryutsu chukei system gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Konno, K [Center for Coal Utilization, Japan, Tokyo (Japan); Tanaka, M

    1996-09-01

    It may be intended that CWM is manufactured in areas near coal producing areas in overseas countries and imported as a product requiring lower handling cost than in bulk products. In order to achieve this idea, it is necessary to establish a distribution and relaying system for product transportation inside and outside the country, including relaying bases for receiving, loading and storing the product. This paper reports results of the demonstration tests performed since 1992 to 1996. In the tests, CWM made from Chinese coals was transported from Shijiu Port to the Hibiki relaying base in the city of Kita-Kyushu on 5000 DWT ocean vessels, unloaded, stored, and loaded again on 700 DWT domestic vessels for distribution to users. Since the inauguration of transportations, 40,000 tons of CWM were delivered yearly to the Okayama plant of Tayca Company, and about 20,000 tons to the Mizushima power plant of the Chubu Electric Power Company over a period from 1995 to 1996. During the period, a number of findings were acquired in different aspects, including quality control of incoming and outgoing CWM, stability in quantity and properties, loading and unloading works, and transportation. Although reduction in subsidence during transportation and storage was indicated desirable, the practical applicability was verified for the relaying system as a whole. 4 refs., 15 figs., 3 tabs.

  11. Technology for improving sludge concentration; Odei noshukusei kaizen gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-10

    Sludge generating in a sewage treatment plant is disposed through the processes such as concentration, dehydration, and incineration in sludge disposal facilities. In recent years, there has been a trend that this sludge increases in volume as well as worsens in the concentration. A case is predictable where the sludge load to the dehydrating process is so large that the sludge can no longer be processed in sufficient quantity. In the meantime, if sludge is ozone-treated, viscous substance on the surface of sludge particles can be separated with a comparatively small amount of ozone, with sludge concentration enhanced. At Meidensha, an experimental plant was set up for the ozone treatment of sludge in a sludge intensive treatment plant of a metropolis, with a verification experiment carried out for a sludge concentration improving system by ozone. As a result of comparison of the treatment performance between an assessment system for performing ozone treatment and a reference system for not performing, the average value of the sludge concentration of a gravity concentration tank was 1.9% of the reference system against 1.7% of the assessment system in a continuous treatment experiment in the summer, while the solid collection ratio was 65.8% of the reference system against 95.5% of the assessment system, enabling a superior improving effect to be obtained. (NEDO)

  12. Winter concrete; Kanchu kunkurito. Gijutsu no genjo to shorai tenbo

    Energy Technology Data Exchange (ETDEWEB)

    Kamata, Eiji [Hokkaido University, Hokkaido (Japan)

    1998-11-10

    Much energy is consumed in order to carry out the winter concrete, and it becomes not always the work in the work environment of the amenity. Therefore, it wants to avoid it, if such work is possible. The winter concrete is a basis in carrying out the construction in cold region in all year. Large role is very much fulfilled for efficient operation of the construction industry in which foot of maintain is wide, activation of the regional economy of snows cold region such as the constant employment of construction worker, improvement in the social environment. Therefore, the popularization of the winter concrete technology is indispensable in the chilly snowy area, and it becomes the importance that the efficiency improvement is attempted. (NEDO)

  13. Photon technology. Hard photon technology; Photon technology. Hard photon gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Research results of hard photon technology have been summarized as a part of novel technology development highly utilizing the quantum nature of photon. Hard photon technology refers to photon beam technologies which use photon in the 0.1 to 200 nm wavelength region. Hard photon has not been used in industry due to the lack of suitable photon sources and optical devices. However, hard photon in this wavelength region is expected to bring about innovations in such areas as ultrafine processing and material synthesis due to its atom selective reaction, inner shell excitation reaction, and spatially high resolution. Then, technological themes and possibility have been surveyed. Although there are principle proposes and their verification of individual technologies for the technologies of hard photon generation, regulation and utilization, they are still far from the practical applications. For the photon source technology, the laser diode pumped driver laser technology, laser plasma photon source technology, synchrotron radiation photon source technology, and vacuum ultraviolet photon source technology are presented. For the optical device technology, the multi-layer film technology for beam mirrors and the non-spherical lens processing technology are introduced. Also are described the reduction lithography technology, hard photon excitation process, and methods of analysis and measurement. 430 refs., 165 figs., 23 tabs.

  14. Photon technology. Hard photon technology; Photon technology. Hard photon gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    For the application of photon to industrial technologies, in particular, a hard photon technology was surveyed which uses photon beams of 0.1-200nm in wavelength. Its features such as selective atom reaction, dense inner shell excitation and spacial high resolution by quantum energy are expected to provide innovative techniques for various field such as fine machining, material synthesis and advanced inspection technology. This wavelength region has been hardly utilized for industrial fields because of poor development of suitable photon sources and optical devices. The developmental meaning, usable time and issue of a hard photon reduction lithography were surveyed as lithography in ultra-fine region below 0.1{mu}m. On hard photon analysis/evaluation technology, the industrial use of analysis, measurement and evaluation technologies by micro-beam was viewed, and optimum photon sources and optical systems were surveyed. Prediction of surface and surface layer modification by inner shell excitation, the future trend of this process and development of a vacuum ultraviolet light source were also surveyed. 383 refs., 153 figs., 17 tabs.

  15. Paradigm for new scientific technology; Shinkagaku gijutsu paradigm

    Energy Technology Data Exchange (ETDEWEB)

    Shindo, Y [National Chemical Lab. for Industry, Tokyo (Japan)

    1995-01-05

    This paper reviews the current status from the standpoint of chemical engineers facing the coming of the 21st century, and surveys the paradigm for new scientific technologies. The criticism is mixed with unique opinions everywhere, such as `departure of students from scientific and engineering faculties is none other than the result of a market principle`, `national burden of trillions of yens should not be spent only under a justice of advancement of the science`, and `the global civilization itself has no other way but to change from the conventional expansive development type of the western country style to the internal development type of the oriental country style`. Values that define the paradigm for new scientific technologies may include such keywords as saturation in technology, baseless expansion of research projects, criticism on science, market principle, and centering human being. It should be looked at seriously that profit from research and development should exceed the cast invested therein in the future, and scientific technologies that serve truly the society should be aimed at. These efforts will result in one of the large pillars that support the future in which creation of new functions is aimed at as a result of structuring the new systems. Trying to overcome the environmental problems is one of them.

  16. Laser innovated manufacturing technology; Laser ga seisan gijutsu wo kakushinshita

    Energy Technology Data Exchange (ETDEWEB)

    Maruyama, I. [Honda Motor Co. Ltd., Tokyo (Japan)

    1996-11-01

    This paper looks back the history of applications of laser processing in the automobile industry, and introduces contents of some particularly unique applications from among them. The CO2 laser and YAG laser that are used mainly have increased their outputs with the times, and 50-kW CO2 laser and 4-kW YAG laser have now become available commercially. The laser processing has become used widely for cutting purpose in Japan, which is in contrast with their high application to welding in Europe and America. Cutting thick plates has been developed recently, which is applicable to plates as thick as about 25 mm. A flexible system in which YAG laser is combined with an optical fiber/articulated robot is operating for three-dimensional shape processing. Automobile makers are adopting laser processing for welding in place of the electron beam welding that has been used conventionally. The process is used also for a number of other applications including surface reformation, such as surface quenching for cylinder liner, and valve seat padding. 8 refs., 8 figs.

  17. Evaluation technology of clothing comfortableness; Ifuku tekigosei hyoka gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Niwaya, H.

    1999-10-26

    Modern apparel industries are required to supply many kinds of products corresponding to various needs of consumers. Among consumers' needs, comfortableness to wear such as size-fitness is primarily important. To facilitate apparel industries, it is expected to develop a new technology of pattern designing of comfortable garment and measuring garment pressure distribution. Our research is aimed at developing technology that uses computer simulation to predict and evaluate wear comfort, including size suitability, without the need to actually sew up a garment. First, we developed a basic system to predict wearing silhouette, garment pressure, and ease looseness of the garment. Using this system, we carried on the following study. The 3-dimensional distributions of the garment pressure and ease looseness were reversely mapped on the paper pattern in order to indicate the preferable modification. The system was extended for several poses, e.g. twist, bend. From various parameters, we examined the factors of garment pressure and ease looseness. In addition, we selected the parameters for the size-fit indicators and investigated size-fit evaluation indicators. (author)

  18. Survey on peripheral techniques of brown coal liquefaction techniques; Kattan ekika gijutsu ni kansuru shuhen gijutsu no chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-09-01

    Described herein are results of survey on brown coal liquefaction techniques and peripheral techniques, centered by COSTEAM process under development in USA, solubilization by alcohol and liquefaction and cracking with the aid of tetrahydroquinoline as the hydrogen donor under development in Japan, and low-temperature carbonization and new promising techniques. The COSTEAM process shows higher reaction rates, conversions and oil yields for brown coal liquefaction than the one using hydrogen gas. Some of the problems involved in this process high viscosity and oxygenated compound content of the product oil. The product oil is acceptable as fuel for power generating plants and can be produced at a moderate cost, but may be unsuitable as vehicle fuel. Coal liquefaction and solubilization processes are mainly represented by those which use hydrogen. The hydrogen cost, which is high, determines the product price. The processes which use alcohol or tetrahydroquinoline are still in the experimental stage. (NEDO)

  19. Immediate data access system for LHD experiments

    International Nuclear Information System (INIS)

    Emoto, M.; Iwadare, Y.; Nagayama, Y.

    2004-01-01

    Several kinds of computer systems are used to perform large helical device (LHD) experiments, and each produces its own data format. Therefore, it has been difficult to deal with these data simultaneously. In order to solve this problem, the Kaiseki server was developed; it has been facilitating the unified retrieval of LHD data. The data acquired or analyzed by various computer systems are converted into the unified ASCII format, or Kaiseki format, and transferred to the Kaiseki server. With this method, the researchers can visualize and analyze the data produced by various kinds of computers in the same way. Because validations are needed before registering on the Kaiseki server, it takes time to make the validated data available. However, some researchers need data as soon as it is gathered in order to adjust their instruments during the experiments. To satisfy this requirement, a new visualization system has been under development. The new system has two ways to visualize the data as physical values from the raw data. If the conversion task is not complex, the NIFSscope, a visualization tool, converts the raw data into physics data by itself. If the task is too complex to handle, it asks the ANACalc server to make physics data. When the ANACalc server receives a request, it delegates calculation programs to convert the acquired data into physics data. Because the interfaces between the server and the calculation processes are independent of programming languages and operating systems, the calculation processes can be placed on different computers and the server load can be reduced. Therefore, the system can respond to changes in requirements by replacing the calculation programs, and can easily be expanded by increasing the number of calculation servers

  20. Comprehensive and Critical Literature Review on Insitu Micro-Sensors for Application in Tribology

    Science.gov (United States)

    1994-04-01

    Tsugai, Masahiro; Bessho, Mikio ; Araki, Toru; Onishi, Masayoshi; Sesekura, Takashi Source: SAE Technical Paper Series. Publ by SAE, Warrendale, PA, USA...MONITORING OF HYDROGEN ASSISTED CRACKING OF LOW ALLOY STEEL. Author. Hayashi, Yasuhisa; Takemoto, Mikio Source: Boshoku Gijutsu/Corrosion Engineering v...METALS AND ITS APPLICATION TO AE SENSOR. Author. Shimizu, Hiroshi; Watanabe, Hiroshi; Sato , Michio Source:. Japanese Journal of Applied Physics, Supplement

  1. JPRS Report, Science & Technology, Japan: Symposium on Applications of Advanced Technology: Sensors

    Science.gov (United States)

    1992-03-02

    Tokyo SENTAN GIJUTSU OYO formation of amphipathic cellular membrane compo-SYMPOSIUM in Japanese 3 Sep 91 pp 37-45 nents of procaryote , rhamnolipids A...rhamnolipid has a nonionic sugar part and an anionic cellular liposome as the matrix lipid of a biological film, carboxylic group as the hydrophilic...the phospholipids of bacterial 3. Liposome Sensor cellular membranes have no phosphatadyl choline and consist mainly of phosphatadyl ethanolamine, 4

  2. Analysis of the membrane fouling on cross-flow ultrafiltration and microfiltration of soy sauce lees; Shoyuhiireden no kurosuforo roka ni okeru fauringu no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Furukakwa, T. [Kikkoman Corporation, Chiba (Japan); Kobayashi, H.; Kokubo, K.; Watanabe, A. [Niigata University, Niigata (Japan). Graduate School of Science and Technology

    2000-05-10

    Although since the 1980's Japanese soy sauce manufactures have developed cross-flow membrane filtration systems to recover soy sauce from its lees, the mechanisms by which the membrane fouls during filtration have not been theoretically discussed. Calculated flux declines using a theoretical equation developed for cross-flow cake filtration were compared against experimental results involving the filtration of soy sauce lees using polysulfone ultrafiltration and micro filtration membranes. Membrane fouling due to the deposition and intrusion of soy sauce lees was evaluated from the hydraulic resistances of the membrane and the cake layer. Calculated flux declines with time agree with the experimental results. Specific resistance of the cake layer which is an adjustable parameter of the equation, decreases with increasing cross-flow velocity. Hydraulic resistance exhibited by the membranes is independent of feed flow velocity. However, the resistance of the cake layers decreases with increasing cross-flow velocity. This corresponds to the steady-state flux increase. In conclusion, the main cause of fouling in the filtration of soy sauce lees is cake layer formation. By using the cake filtration model for cross-flow, the flux decline with time during the filtration is capable of being predicted. (author)

  3. Seismic refraction analysis with high accuracy based on traveltime modeling; Basu keisan wo base to shita kussekiho jishin tansa kaiseki no koseidoka

    Energy Technology Data Exchange (ETDEWEB)

    Saito, H; Hayashi, K [OYO Corp., Tokyo (Japan)

    1996-05-01

    For the purpose of enhancing the efficiency of analytical processes so that those not equipped with high skill may perform a certain level of analysis and that analysis precision may be improved, some analytical techniques based on path calculation were examined. As the result, a flow of work has become feasible, wherein an early model is constructed by use of a tomography-assisted analysis to be accomplished automatedly and the result is then converted into a layer system with the velocity and thickness to be automatically corrected for the determination of the ultimate velocity layer section. Following this flow of work, almost all the parts of the work may be accomplished automatically once the travel time curve is completed. Furthermore, the calculated travel time obtained by this method can be easily compared with the observed travel time creating an opportunity to show the high reliability of this method, for this to be accepted as a standard for evaluating the accuracy of exploration. It has also been found that this method may be applied to more complicated structures which fail to satisfy the conditions for a structure to be treated by other methods such as `Hagiwara`s method.` 3 refs., 5 figs.

  4. Flow characteristic of Hijiori HDR reservoir from circulation test in 1991; Koon tantai Hijiori jikkenjo ni okeru senbu choryuso shiken (1991 nendo) kekka to ryudo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Shiga, T; Hyodo, M; Shinohara, N; Takasugi, S [Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan)

    1996-05-01

    This paper reports one example of flow analyses on a circulation test carried out in fiscal 1991 at the Hijiori hot dry rock experimental field (Yamagata Prefecture). A fluid circulation model was proposed to simulate an HDR circulation system for a shallow reservoir (at a depth of about 1800 m) demonstrated in the circulation test by using an electric circuit network (which expresses continuity impedance in resistance and fluid storage in capacitance). Storage capacity of the reservoir was estimated by deriving time constant of the system from data of time-based change in reservoir pressure associated with transition phenomena during the circulation test. The storage capacity was estimated separately by dividing change of storage in the reservoir by change in the reservoir pressure. To derive the storage in the reservoir, a method to calculate non-recovered flows in the circulation test was utilized. The results of evaluating the reservoir capacity in the shallow reservoir using the above two independent methods were found substantially consistent. 3 refs., 6 figs., 1 tab.

  5. Analysis of the pressure response of high angle multiple (HAM) fractures intersecting a welbore; Kokeisha multi fracture (HAM) kosei ni okeru atsuryoku oto kaiseki ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Ujo, S; Osato, K [Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Arihara, N [Waseda University, Tokyo (Japan); Schroeder, R

    1996-05-01

    This paper reports pressure response analysis on wells piercing a high angle multi (HAM) fracture model. In this model which is defined on a three-dimensional space, a plurality of slanted fractures intersect with wells at high angles (however, intersection of fractures with each other is not considered). With respect to the pressure response analysis method using this model, the paper presents a basic differential equation on pressure drawdown and boundary conditions in the wells taking flows in the fractures pseudo-linear, as well as external boundary conditions in calculation regions (a reservoir spreads to an infinite distance, and its top and bottom are closed by non-water permeating beds). The paper also indicates that results of calculating a single vertical fracture model and a slanted fracture model by using a numerical computation program (MULFRAC) based on the above equations agree well respectively with the existing calculation results (calculations performed by Erlougher and Cinco et al). 5 refs., 6 figs.

  6. Flow characteristics of Hijiori HDR reservoir form circulation test in 1995; Koon tantai Hijiori jikkenjo ni okeru shinbu choryuso yobi junkan shiken (1995 nendo) kekka to ryudo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Fukushima, N; Hyodo, M; Shinohara, N; Takasugi, S [Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan)

    1996-05-01

    This paper reports the result of a preliminary circulation test conducted in fiscal 1995 on a deep reservoir (at a depth of about 2200 m) in the Hijiori hot dry rock experimental field. One water injection well and two production wells were drilled to constitute a circulation loop, to which the circulation test was performed to investigate the flow characteristics thereof. The result revealed the following matters: total amount of injected water of 51500 m{sup 3} resulted in a total fluid recovery rate of about 40%; as a result of well stimulation given twice during the initial stage of the water injection, the continuity impedance in the vicinity of the injection well decreased largely (however, the continuity improvement upon the second attempt was considerably inferior to that from the first attempt); and increase in the water injection amount does not necessarily lead to increase in the production amount. The paper describes additionally that it is extremely difficult to interpret non-linearity between the injection and production amounts by using a model prepared previously with a main objective to analyze the Hijiori HDR circulation system. 1 ref., 9 figs., 1 tab.

  7. Subsurface interpretation based on geophysical data set using geothermal database system `GEOBASE`; Chinetsu database system `GEOBASE` wo riyoshita Kakkonda chinetsu chiiki no chika kozo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Osato, K; Sato, T; Miura, Y; Yamane, K [Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Doi, N [Japan Metals and Chemicals Co. Ltd., Tokyo (Japan); Uchida, T [New Energy and Industrial Technology Development Organization, Tokyo, (Japan)

    1996-05-01

    This paper reports application of a geothermal database system (GEOBASE) to analyzing subsurface structure in the Kakkonda geothermal area. Registered into the GEOBASE to analyze specific resistance structure in this area were depth information (well track and electric logging of existing wells), three-dimensional discretization data (two-dimensional analysis cross section using the MT method and distribution of micro-earthquake epicenters), and two-dimensional discretization data (altitude, and depth to top of the Kakkonda granite). The GEOBASE is capable of three-dimensional interpolation and three-dimensional indication respectively on the three-dimensional discretization data and the depth information table. The paper presents a depth compiling plan drawing for 2000 m below sea level and an SE-NE cross section compiling cross sectional drawing. The paper also indicates that the three-dimensional interpolation function of the GEOBASE renders comparison of spatial data capable of being done freely and quickly, thereby exhibiting power in the comprehensive analysis of this kind. 3 refs., 8 figs., 2 tabs.

  8. Evaluation stationariness of triaxial seismic while drilling and detection of reflected wave; Kosei kussaku ni tomonau danseiha no sanjiku kaiseki ni yoru hiteijo hyoka to hanshaha no kenshutsu

    Energy Technology Data Exchange (ETDEWEB)

    Yoshida, T; Asanuma, H; Niitsuma, H [Tohoku University, Sendai (Japan). Faculty of Engineering

    1996-05-01

    This paper reports a method to detect reflected wave components contained in an elastic wave caused in association with well drilling. Measurement was made on an elastic wave caused in association with well drilling in an experimental field by using a triaxial elastic wave detector disposed in a measurement well. Analyzing the particle motion tracks in the derived elastic wave signals (to derive the main axial direction of a three-dimensional hologram) revealed that oscillation direction of the signals changes non-steadily by time centering around the S-wave oscillation direction. In addition, a sound source position was estimated during the drilling. Existence probability of the S-wave signal in the non-steady continuous signals was estimated by handling the particle motion tracks stochastically. In addition, this existence probability was used as a weighting function for a correlative analysis to detect a reflected wave from directly reaching wave components in the non-steady continuous signals. Thus, improvement in reliability of reflected wave detection was attempted. Effectiveness of this method was endorsed by the field data. 3 refs., 7 figs.

  9. Development of the electromagnetic tomography system. Sensitivity study of anomalous body by model studies; EM tomography system no kaihatsu. Model kaiseki ni yoru ijotai no kando chosa kekka

    Energy Technology Data Exchange (ETDEWEB)

    Kumekawa, Y; Miura, Y; Takasugi, S [Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Arai, E [Metal Mining Agency of Japan, Tokyo (Japan)

    1996-05-01

    An examination was made by a model analysis on sensitivity and the like against a resistive anomalous body, in connection with an electromagnetic tomography system with surface earthquake sources and underground receiver arrangements. A resistivity model was of a three-dimensional structure, and built with a 5 ohm{center_dot}m low resistivity anomalous body assembled in a 100 ohm{center_dot}m homogeneous medium. As a result of the examination, it was shown that the size limitation of an analyzable anomalous body was 50{times}50{times}20m at a frequency of 8 to 10kHz and that a system with high precision in a high frequency range was necessary. The examination of effects under a shallow anomalous body revealed, for example, that the fluctuation of a low frequency response was large compared with a deep anomalous body and that, where a second anomalous body existed under it, the effect also appeared with a surface earthquake source positioned in the opposite side from the anomalous body. The examination of effects under the three dimensional structure revealed, for example, that a remarkable change appeared in the data with the change in the inclined angle of the transmission line against the strike of the anomalous body. 4 refs., 7 figs.

  10. Development of multi-frequency array induction logging (MAIL) tool. 3; Multi shuhasu array gata induction kenso tool (MAIL) no kaihatsu (genchi shiken data no ichijigen kaiseki). 3

    Energy Technology Data Exchange (ETDEWEB)

    Sato, T; Osato, K; Takasugi, S [Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Uchida, T [New Energy and Industrial Technology Development Organization, Tokyo, (Japan)

    1996-05-01

    A field test was carried out in 1995 on a deep-seated geothermal investigation and reduction well WDR (in Kakkonda, Shizuku-ishi, Iwate Prefecture) by utilizing a multi-frequency array induction logging tool which is under development by NEDO. This paper reports results of analyzing the acquired data. With the WDR wells, an investigation has been conducted to a drilling depth of 330 m. Three frequencies in a range from 3 to 24 kHz provided relatively good data, but data with 42 kHz had poor quality that cannot be utilized for the analysis. Precise device calibration is difficult on data acquired from three array type vertical component magnetometers (the difficulty may be due to a signal line from a transmitter passing on the magnetometer side). Because of this difficulty, analysis using one-dimensional inversion program was performed by using ratio of the amplitude for each frequency and phase difference as input data. The analysis allowed to have derived a result that corresponds to the ground bed structure. 5 refs., 8 figs., 3 tabs.

  11. Analysis of output characteristics of PV modules under natural sunlight; Shizen taiyokoka ni okeru taiyo denchi module shutsuryoku tokusei no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Murai, Y.; Igari, S. [Japan Quality Assurance of Organization, Tokyo (Japan)

    1997-11-25

    The paper measured current/voltage characteristics of various PV modules under natural light and analyzed various characteristics such as generated output and module power generation efficiency. In the experiment, installing various PV modules at the solar techno center located at north latitude 34.7deg and east longitude 137.6deg, measurement was made by I-V curve tracer, pyranometer, and thermocouple buried on the module back. As a result, the following were confirmed: As to the monthly mean power generation efficiency, the crystalline system is lowest in summer and highest in winter, and the amorphous system highest in summer and lowest in winter. Concerning the power generation efficiency and illuminance, the gap of power generation efficiency between at high illuminance and at low illuminance is large in the crystalline system and small in amorphous system. Relating to the azimuth angle of module installation and the generated output, the installation inclined 15deg angle west in summer and 15deg angle east in fall/winter generates more power in the crystalline system. On the contrary, the installation on the south face generates more power in the amorphous system. 4 refs., 8 figs., 3 tabs.

  12. Numerical response analysis of a large mat-type floating structure in regular waves; Matogata choogata futai kozobutsu no haro oto kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Yasuzawa, Y.; Kagawa, K.; Kitabayashi, K. [Kyushu University, Fukuoka (Japan); Kawano, D. [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)

    1997-08-01

    The theory and formulation for the numerical response analysis of a large floating structure in regular waves were given. This paper also reports the comparison between the experiment in the Shipping Research Institute in the Minitry of Transport and the result calculated using numerical analytic codes in this study. The effect of the bending rigidity of a floating structure and the wave direction on the dynamic response of a structure was examined by numerical calculation. When the ratio of structure length and incident wavelength (L/{lambda}) is lower, the response amplitude on the transmission side becomes higher in a wave-based response. The hydrodynamic elasticity exerts a dominant influence when L/{lambda} becomes higher. For incident oblique waves, the maximum response does not necessarily appear on the incidence side. Moreover, the response distribution is also complicated. For example, the portion where any flexible amplitude hardly appears exists. A long structure response can be predicted from a short structure response to some degree. They differ in response properties when the ridigity based on the similarity rule largely differs, irrespective of the same L/{lambda}. For higher L/{lambda}, the wave response can be easily predicted when the diffrection force is replaced by the concentrated exciting force on the incidence side. 13 refs., 14 figs., 3 tabs.

  13. Theoretical study on composition of gas produced by coal gasification; Sekitan gas ka de seiseisuru gas no sosei ni kansuru kosatsu (HYCOL data no doteki kaiseki)

    Energy Technology Data Exchange (ETDEWEB)

    Kaiho, M.; Yasuda, H.; Kobayashi, M.; Yamada, O.; Soneda, Y.; Makino, M. [National Institute for Resources and Environment, Tsukuba (Japan)

    1996-10-28

    In relation to considerations on composition of gas produced by coal gasification, the HYCOL hydrogen generation process data were analyzed. From the fact that CO concentration (Y) decreases linearly with CO2 concentration (X), element balance of gasification of reacted coal was used to introduce a reaction analysis equation. The equation includes a term of oxygen excess {Delta}(amount of oxygen consumed for combustion of CO and H2 in excess of the theoretical amount), derived by subtracting the stoichiometric oxygen amount used to gasify coal into CO and H2 from the consumed oxygen amount. The {Delta} can be used as a reference to oxygen utilization efficiency. An equation for the {Delta} was introduced. Also introduced was a term for steam decomposition amount derived by subtracting the generated steam from the supplied steam. These terms may be used as a clue to permeate into the gasifying reaction process. This suggestion was discussed by applying the terms to gas composition value during operation. According to the HYCOL analysis, when a gasification furnace is operated at higher than the reference oxygen amount, coal supply variation is directly reflected to the combustion reaction, making the {Delta} distribution larger. In an inverse case, unreacted carbon remains in the furnace due to oxygen shortage, and shift reaction may occur more easily even if oxygen/coal supply ratio varies. 6 figs., 1 ref.

  14. Analysis of combustion in an ATAC engine with measurement of radical luminescence; Radical hakko keisoku ni yoru ATAC engine no nensho kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Park, Y; Oguma, H; Ueda, H; Iida, N [Keio University, Tokyo (Japan)

    1997-10-01

    In order to make clear of the combustion mechanism and the frame structure in two stake, so called, active thermo-atmosphere combustion (ATAC) engine fueled by gasoline and methanol, we measured the 2-demensional images of OH, CH and C2 radical band spectra in both ATAC and SI combustion mode. From the results of pressure data in the cylinder, the heat release rate was calculated. We evaluated the correlation of radical luminescence intensity and the rate of heat release. 3 refs., 4 figs., 2 tabs.

  15. Optimum stamping die structure based on analytical method of die deformation during draw process; Seikei katei no kanagata henkei kaiseki ni motozuku, press kanagata kozo no saitekika

    Energy Technology Data Exchange (ETDEWEB)

    Nakahara, T; Tamai, H [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    We measured an actual deformation and pressure distribution in draw process of bending cam, and analyzed deformation process of die structure, in order to eliminate adjusting work considering die deformation by stamping force. We studied die structure improvement with simulation based on analytical method. This report describes a sample of die structure improvement based on a simulation and actual measurement. 1 ref., 11 figs., 1 tab.

  16. Fundamental study on an analytical system of 1/f fluctuation considered a matrix of colours; Iro hairetsu wo koryoshita 1/f yuragi kaiseki system no kisoteki kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Kitayama, Y. [Hiroshima Institute of Technology, Hiroshima (Japan); Takagi, T. [Hiroshima Shudo University, Hiroshima (Japan); Nakashima, Y. [Nippon Telegraph and Telephone Corp., Tokyo (Japan)

    1998-03-31

    The impression which an illustrations in newspaper advertisements and wrapping paper give to human beings plays an important role in commodity sales. When we try to evaluate the comfort level which these illustrations give to human beings, 1/f fluctuation caused by the colour array can be considered as one important element. As a fundamental study of the method to evaluate such illustrations from the standpoint of a colour array, we have studied a method that measures the comfort level of round shaped four colours with conformity arranged on plain white paper. This system presupposes that the four colours exert a mutual influence of potential energy according to their arrangement. We have tried to define and evaluate this energy. The comfort level is measured using the calculation value of energy. For this study, we have used the above proposed system to compare 16 kinds of samples conforming to the above method calculating the value of energy with the results of a questionnaire answered by two or more groups of human beings. 9 refs., 6 figs., 1 tab.

  17. Surge analysis of the MAGLEV coil for propulsion and guidance; Jiki fujoshiki tetsudo ni okeru suitei annaiyo coil no surge kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Ema, S [Numazu College of Technology, Shizuoka (Japan)

    1995-11-20

    The MAGLEV (magnetically levitated train) is now well along in development testing in Japan. MAGLEV is unlike conventional railways, so various problems lie in the technology of MAGLEV. One of them is surge analysis of the MAGLEV coil for propulsion and guidance (`coil for propulsion` for short). The coil for propulsion is installed on each side of the outdoor guideway. Thus, the power system of MAGLEV is always exposed to lightning and circuit switching. Accordingly, it is very important to do a rational insulation plan to prevent damage when surges enter the coils. In view of this situation I performed experiments using the mini model coils and clarified impulse voltage distribution at the end of each coil and simulated the surge characteristics by giving the inverted L equivalent circuit to the coil for propulsion. As a result, the measured values and calculated values were almost equal in the surge characteristics. Further, the surge characteristics of the Miyazaki test track and the future MAGLEV were examined. 10 refs., 17 figs., 1 tab.

  18. Characteristic analysis of turbulent heat diffusion in a multi-compartment structure; Takukakuka kukan kozo ni okeru ranryunetsu kakusan gensho no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Hu, C; Fukuchi, N [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    1997-10-01

    An analysis was made on turbulent heat diffusion in a multi-compartment structure necessary for designing calorific power and environment for functional systems used in marine vessels and off-shore structures. In a multi-compartment structure, the diffusion phenomenon is complex because of movement of air flow in turbulence and buoyancy resulted from non-isothermal condition. The phenomenon is largely affected by space shapes and walls, and the conditions in heat diffusion field is governed also by shapes of opening connecting the compartments. An analysis was made by using the SIMPLE method on turbulent heat diffusion in a multi-compartment space with high Raleigh number in which natural convection is dominant. If the opening is small, the Coanda effect appears, in which air flow passing through the opening rises along the wall, wherein a high-temperature layer is formed near the ceiling, making the heat diffusion inactive. If the opening is large, a jetting flow from the opening and a large circulating flow are created, which cause active advection mixture, making temperature gradient smaller in the upper layer. Heat transfer intensity in an opening on a partition wall decays in proportion with 1/4th power of the opening ratio. 7 refs., 11 figs.

  19. Analysis of crashes using FE vehicle models. Relations between vehicle types and crash characteristics; Yugen yoso model wo mochiita sharyo no shototsu kaiseki. Sharyo type to shototsu tokusei

    Energy Technology Data Exchange (ETDEWEB)

    Takatori, O. [Japan Automobile Research Institute Inc., Tsukuba (Japan)

    2000-01-01

    The objective of this study is to analyze the crash characteristics of vehicles under the condition of real-world accidents. This paper pays attention to the differences in the crash characteristics of a vehicle colliding with a vehicle which is a different type. Vehicles on the market can be divided broadly into two vehicle structures, monocoque structure and frame structure. Monocoque structure is mainly used for passenger vehicles and frame structure is for recreational vehicles (RV). In recent years, RV has been a large seller on the market. So accidents between passenger vehicles and a RVs occur frequently. The analysis of experimental data and computer simulation, which is predicated on the experimental data, was carried out for this study. In the analysis of experimental data, barrier force data from the New Car Assessment Program (NCAP) were analyzed. The FE passenger vehicle model which is based on systematic validation tests was used for the computer simulation of car-to-car collisions. (author)

  20. Controlled levitation of Y-Ba-Cu-O bulk superconductors and energy minimum analysis; Y-Ba-Cu-O baruku chodendotai no fujo to enerugi kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Magashima, K. [Railway Technical Research Institute, Tokyo (Japan); Iwasa, Y. [Francis Bitter Magnet Laboratory, Canbridge (United States); Sawa, K. [keio University, Tokyo (Japan); Murakami, M. [Superconductivity research Laboratory, Tokyo (Japan)

    1999-11-25

    The levitation of bulk Y-Ba-Cu-O superconductors can be controlled using a Bi-Sr-Ca-Cu-O (Bi2223) superconducting electromagnet. It was found that stable levitation without tilting could be obtained only when the sample trapped a certain amount of fields, the minimum of which depended on the external field and sample dimensions. We employed a novel analysis method for levitation based on the total energy balance, which is much simpler than the force method and could be applied to understanding general levitation behavior. Numerical analyses thus developed showed that stable levitation of superconductors with large dimensions cen only be achieved when the induced currents can flow with three-dimensional freedom. (author)

  1. Velocity profiles of acoustic streaming in resulting stokes layer by acoustic standing wave in a duct; Kannai kichi shindo ni okeru stokes sonai onkyoryu ryusoku bunpu no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Arakawa, M; Kawahashi, M [Saitama University, Saitama (Japan). Faculty of Engineering

    1995-07-25

    Acoustic streaming is generated by Reynolds stress in the sense of mean acoustic momentum flux in a sound field. In the case of an acoustic standing wave produced by an air column oscillation in a closed duct, the friction and the Reynolds stress in the resulting Stokes layer are the essentials of acoustic streaming generation in the vicinity of the duct wall. The thickness of the Stokes layer decreases with the oscillatory Reynolds number. The plane wave propagation in the duct is assumed for the case of high Reynolds number except for the thin Stokes layer adjacent to the duct wall. The velocity profiles of the streaming are estimated theoretically from the steady component of the second-order term of a perturbation expansion in which the first-order approximation is a sinusoidal oscillation of the air column with plane waves. The present paper describes theoretical analysis of the velocity profiles of the acoustic streaming in the Stokes layer by means of the matched asymptotic expansion method. The results obtained show the existence of reverse streaming in a very thin layer adjacent to the wall and the effects of thermal boundary conditions at the wall on the velocity profiles of acoustic streaming in the Stokes layer. 9 refs., 8 figs.

  2. Review of an analysis system of `Long-Term Deep Seafloor Observatory off Muroto Peninsula`; Kochiken Murotomisakioki `kaitei jishin sogo kansoku system` data no kaiseki system no shokai

    Energy Technology Data Exchange (ETDEWEB)

    Tsuru, T; Machiyama, H; Hattori, M; Kaneda, Y [Japan Marine Science and Technology Center, Kanagawa (Japan)

    1997-10-22

    Introduced is a data analysis system for Long-Term Deep Seafloor Observatory established off Muroto Point by Japan Marine Science and Technology Center (JAMSTEC), from which observatory data collected by seismograph and tsunami-meter are transmitted real time. JAMSTEC Long-Term Deep Seafloor Observatory Project Team has begun constructing an analysis system for disposing of events in the data and for locating the hypocenter. The analysis system is composed of a data converting unit that converts the forwarded data into the Win format; a data storage/time-dependent data integration unit that keeps the data in a hard disk for a specified period of time, performs disposition and analysis of events in the data, and forwards the data after disposition and analysis to a data recording unit; a data recording unit that stores selected data of seismic events in a recording medium; and a real-time monitor/NTP server unit that displays real time the observed seismic waveform data. 2 figs.

  3. Remote sensing data analysis for assessment of sea level change in Asia; Asia ni okeru kaisuijun hendo eikyo hyoka no tame no remote sensing gazo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Okubo, Y; Tanaka, A [Geological Survey of Japan, Tsukuba (Japan); Kaku, M [Bishimetal Exploration Co. Ltd., Tokyo (Japan)

    1997-10-22

    Remote sensing images include information of coastal land division, sea level change such as sedimentary environment and vegetation, and distribution of artificial structures. Past sea level changes and their causes can be regionally obtained by analyzing these data and by integrating them with information obtained from geological survey. In this study, causes and history of past sea level changes, formation mechanism of coastal topography, and past sea level change survey in Thailand have been reviewed. This paper describes an extraction method of the sea level change information in coastal districts by analyzing several actual remote sensing images. For understanding the current sea level rise, it is required to clarify the causes quantitatively among three causes of sea level changes, i.e., volumetric change of total ocean water on the earth, relative sea level change due to the crustal deformation, and change of irregularity of sea surface with ocean current. It is also required to compile maps in Asian or global scales. 13 refs., 6 figs.

  4. Ac system interruption analysis of an orthogonal-core type dc-ac converter. Koryu keito shadanji no chokko jishinkei dc-ac renkeiyo henkanki no dosa kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Sato, K; Ichinokura, O; Jinzenji, T [Tohoku Univ., Sendai (Japan). Faculty of Engineering; Tajima, K [Akita University, Akita (Japan). Mining College

    1991-04-30

    This paper reports on a numerical analysis of transient response of an orthogonal-core type dc-ac converter that takes place when the external ac system connected is cut off from it. A model of magnetic circuit of the orthogonal core is presented, which has magnetic inductances to represent effects produced by hysteresis that are connected in series with magnetic reluctances, thereby making it possible to divide each of primary and secondary winding current into magnetization current associated with magnetic reluctances and iron-loss current due to hysteresis. Moreover, a numerical model of the orthogonal core is derived from expressions for non-linear characteristics of these reluctances and inductances to make use of it for analyses employing the circuit simulator SPICE. Transient response of the present converter, namely time variation of both voltage and current in its every part, to the sudden change in condition that is caused by switching off the ac system connected to its secondary side is calculated, while applying square-wave voltage to its primary side. It is noted that calculated wave forms of both secondary winding current and open-circuit voltage are fairly in good agreement with those obtained by an experiment performed on the same condition. 4 refs., 9 figs., 1 tab.

  5. Study on the behavior of reaction disk in the vacuum brake booster; Shinkushiki bairyoku sochi ni okeru reaction disk no kyodo kaiseki jikken

    Energy Technology Data Exchange (ETDEWEB)

    Kuroda, M; Sawada, T; Kato, Y [Tokyo Univ. of Agriculture and Technology, Tokyo (Japan); Ogawa, E; Nakamura, S [Jidosha Kiki Co. Ltd., Tokyo (Japan)

    1997-10-01

    Vacuum brake booster has been widely applied in automobiles, and it needs much time for experiments in order to design a new type model and so on. In this report concentrating on the behavior of a reaction disc, it was simulated by ARAQUS FEM program where coefficients of rubber disc are Mooney-Rivlin constants. It was shown that the numerical results represent good agreement with experiments, and in addition that values of jumping force which shows the starting point of the brake increases with the increment of the hardness of the disc, clearance and so on. 2 refs., 10 figs.

  6. Analysis of combustion behavior in DI diesel engine at low temperature; DI diesel engine ni okeru teionji no nensho kyodo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kuzuya, Y; Shibata, H [Nippon Soken, Inc., Tokyo (Japan); Aoki, S; Itatsu, T [Toyota Motor Corp., Aichi (Japan)

    1997-10-01

    For NOx reduction of a DI diesel engine, the retard of fuel injection timing is effective. However, it causes the white smoke at low temperature and low load. To analyze the mechanism of white smoke generation, a new visualizing system of fuel spray and flame behavior has been developed. This system can be also applied to a 4-valves per cylinder production engine by integrating two optical systems for image and lighting. From the visualization of the fuel spray and the flame behavior in the combustion chamber at low temperature, it has been proved that prompt fuel evaporation before reaching the wall surface of combustion chamber is required to reduce the white smoke. 6 refs., 10 figs., 3 tabs.

  7. Automobile simulation model and its identification. Behavior measuring by image processing; Jidosha simulation model to dotei jikken. Gazo kaiseki ni yoru undo no keisoku

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, H; Morita, S; Matsuura, Y [Osaka Sangyo University, Osaka (Japan)

    1997-10-01

    Model simulation technology is important for automobiles development. Especially, for the investigations concerning to ABS, TRC, VDC, and so on, the model should be the one which can simulates not only whole behaviors of the automobile, but also such internal information as torque, acceleration, and, velocity of each drive shafts, etc.. From this point of view, 4-wheels simulation model which can simulates almost over 50 items, was made. On the other hand, technique of 3-D image processing using 2 video cameras was adopted to identify the model. Considerably good coincidences were recognized between the simulated values and measured ones. 3 refs., 7 figs., 2 tabs.

  8. Identification of Fusarium oxysporum in the fluid of hydroponic culture using DNA analysis; DNA kaiseki ni yoru suiko saibai yoekichu no horenso ichobyokin

    Energy Technology Data Exchange (ETDEWEB)

    Oyama, K.; Kawabata, T. [Chugoku Electric Power Co. Inc., Hiroshima (Japan)

    1999-09-24

    In the case of circularly using a fluid of the hydroponic culture for crops such as vegetable, the destructive damage is caused when specified harmful germs multiply in the growing crop. therefore, it is necessary to find the germs in question out and deal with them as quickly as possible. In this paper, studies were made on a sure identification technology of F. oxysporum using DNA analysis and the measures to prevent crop damages caused by diseases. The results of the study are reported. (translated by NEDO)

  9. Fundamental analysis of thermally regenerative fuel cell utilizing solar heat; Taiyonetsu wo riyosuru netsu saiseigata nenryo denchi no kiso tokusei no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Ando, Y; Tanaka, T; Takashima, T; Doi, T [Electrotechnical Laboratory, Tsukuba (Japan); Aosawa, T; Kogoshi, S [Science University of Tokyo, Tokyo (Japan)

    1997-11-25

    Study was made on a thermally regenerative fuel cell using solar heat. The thermally regenerative fuel cell was devised which is composed of 2-propanol liquid-phase endothermic dehydrogenation at nearly 100degC, and acetone liquid- phase exothermic hydrogenation at nearly 30degC as reverse reaction. This low-temperature dehydrogenation can relatively easily utilize a flat solar heat concentrator. 2-propanol dehydrogenation generates acetone and hydrogen. Generated acetone generates electric power in hydrogenation, generating propanol. This propanol regenerates acetone and hydrogen in dehydrogenation. The activity of Ru and Pt composite catalyst was considerably higher than that of Ru or Pt single catalyst. The activity was also higher in carbon felt or carbon cloth carrier than carbon plate carrier. The open circuit voltage of the fuel cell was estimated to be 110-120mV, nearly consisting with theoretical values. Short circuit current was also estimated to be 9-11mA, suggesting reduction of its internal resistance as an important subject. 4 refs., 5 figs., 2 tabs.

  10. Character of photovoltaic/thermal hybrid collector. Character analysis by numerical calculation; Taiyoko netsu hybrid collector no tokusei. Suchi keisan ni yoru tokusei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Morita, Y; Iwawaki, T; Fujisawa, T; Tani, T [Science University of Tokyo, Tokyo (Japan)

    1997-11-25

    In order to investigate characteristics of photovoltaic (PV)/thermal hybrid collectors (PV/T{sub s}) operating under varying conditions, energy equilibrium equations have been developed for numerical calculation, and the calculated results were compared with the observed ones. The calculated characteristics are close to the observed ones, both for photoelectric conversion and heat collecting characteristics, demonstrating validity of these energy equations. It is found, by comparing characteristics of PV/T{sub A} (covered with glass) with those of PV/T{sub B} (not covered with glass), that these characteristics are greatly affected by glass cover. Maximum overall excergy levels attained are 13.29% with PV/T{sub A} and 11.48% with PV/T{sub B} under the conditions of solar radiation intensity H: 800W/m{sup 2}, ambient temperature: 20degC and wind velocity: 0.5m/s, where flow rates of heat medium are 2.0times10{sup -3} and 4.0times10{sup -3}kg/s, respectively. Thus, the PV/T{sub A} system has a higher maximum excergy efficiency than the PV/T{sub B} system. The PV/T{sub A} gives water of higher temperature, demonstrating that covering the system with glass increases maximum excergy efficiency and optimum temperature. 6 refs., 5 figs., 2 tabs.

  11. Seismic tomography analysis using finite differential calculation of the eikonal equation and reciplocal principle; Eikonal equation no sabunkaiho to sohan genri wo riyoshita danseiha tomography kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Fujimoto, M; Ashida, Y; Watanabe, T; Sassa, K [Kyoto University, Kyoto (Japan)

    1996-10-01

    This paper describes the seismic tomography analysis of underground structures using finite differential calculation (FDC) and a reciprocal principle which points out that a propagation path is constant even if a source and receiver are exchanged with each other. Tomography analysis generally determines a ray length across each underground cell structure by ray tracing method to modify each cell slowness (inverse of velocity). Travel time field was determined by FDC of eikonal equation among ray tracing methods, and a wave propagation path was determined by reciprocity of elastic wave to carry out inversion. In conventional methods, since a wave length is assumed to be infinitesimal by ray theory, false modified slowness structures frequently appears depending on the density of a ray. Wave propagates in a certain width, and is affected by environment. The slowness was thus modified on the basis of the wave propagation path with a certain width by using not ray-tracing but reciprocity. By this modification, false structures were hardly found under a fine grid, and several propagation paths could be considered. 6 refs., 9 figs.

  12. Subsurface interpretation based on geophysical data set using geothermal database system `GEOBASE`. 2; Chinetsu database system `GEOBASE` wo riyoshita Kakkonda chinetsu chiiki no chika kozo kaiseki. 2

    Energy Technology Data Exchange (ETDEWEB)

    Osato, K; Sato, T; Miura, Y; Yamane, K [GERD Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Doi, N [Japan Metals and Chemicals Co. Ltd., Tokyo (Japan); Uchida, T [New Energy and Industrial Technology Development Organization, Tokyo, (Japan)

    1997-05-27

    Five cross sections were applied as a result of MT method investigations in addition to the results of conventional analyses at the Kakkonda geothermal area; three-dimensional resistivity distribution was made into a database by using the Kriging method which makes a matching with anisotropy of seismic center distribution in micro-earthquakes; and the database was compared with the data derived from surveys on the pilot survey well WD-1a and the side-truck well WD-1b thereof. As a result, it was found that the well WD 1b which encountered a water loss zone had the water loss zone exist in a region with relatively lower resistivity than in the well WD-1a which did not encounter a water loss zone. The region in which the water loss zone was encountered existed in a very steep slope region going from the high resistivity region in the west side toward the low resistivity region in the east side. This fact suggests a possibility that fractures have developed in this region with sharp slope in the resistivity in this area. Adding three-dimensional complementary function to the GEOBASE database by using a simple Kriging allowed the direction of anisotropy in spatial data to be freely and quickly decided. It was learned that this capability exhibits strong power in a mapping work in structures where such anisotropy as a geothermal zone is highly dominant. 5 refs., 8 figs., 2 tabs.

  13. X-ray diffraction analysis and MO calculations of 1H-tetrazole; 1H-tetorazoru no Xsen kessho kozo kaiseki to bunshi kido keisan

    Energy Technology Data Exchange (ETDEWEB)

    Ono, Yoshio.; Akutsu, Yoshiaki.; Arai, Mitsuru.; Tamura, Masamitsu. [The University of Tokyo, Tokyo (Japan). School of Engineering; Matsunaga, Takehiro. [National Institute of Materials and Chemical Research, Tsukuba (Japan)

    1999-02-28

    The X-ray diffraction analysis and the MO calculations of 1H-tetrazole were carried out, in order to explain its high stability. From the X-ray diffraction analysis, five bonds in the ring have intermediate lengths between single and double bond lengths. Therefore, 1H-tetrazole is quite stable because of its aromaticity. The N1-C5 distance of 1.315A is significantly short. The molecular structure which was calculated by the ab initio MO calculation of one 1H-tetrazole molecule at MP2/6-31G* level, showed a good agreement with our experimental one, except for the abnormal short N1-C5 distance. From the calculations of dimers and trimers, 1H-tetrazole is shown to be stabilized by a strong intermolecular electrostatic interaction between the protons and the delocalized electrons over the ring. (author)

  14. Nodal head method with matric operation in analysis of mine ventilation networks. Matrics kaiho wo mochiita setten ho ni yoru tsuki mo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Sasaki, K.; Miyakoshi, H. (Akita Univ., Akita (Japan). Mining College); Kinoshita, H.; Onozuka, T. (Hanaoka Mining Co. Ltd., Akita (Japan))

    1990-09-25

    In this report, the method of analyzing mine ventilation networks is explained in which the direct matric operation method is applied to the solution of the linear equation system introduced from the fundamental equation of the nodal head method. In other words, the fundamental equation was expressed by genelarized equation composition by using connecting functions between nodes and the algorism of a computer program was clarified. And the calculation method necessary for other ventilation netwrks analysis was shown in a concrete form. For solving the linear equation system, the matric operation method based on the modified Choleski's method was used in order to speed up the calculation and stabilize the convergence process of the solution. As examples, calculation was made on the ventilation networks of total numbers of the nodes of 8, 14, 51 and 141. From these ventilation network analyses, using a linear equation system concerning the nodal pressure correction, it was found that in the system with convergence acceleration coefficient of 1.4, the number of sequential repeating frequency of approximation Mc which was required for convergence was in the order of Mc {approx equal} 13 (cycle) for the condition that the fan pressure was constant and the convergence condition was {vert bar} AQi {vert bar}{sub max} {lt} 0.1m {sup 3}/min. 14 refs., 12 figs., 3 tabs.

  15. Fiscal 2000 report on result of the full-length cDNA structure analysis; 2000 nendo kanzen cho cDNA kozo kaiseki seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    This paper explains the results of research on full-length cDNA structure analysis for the period from April, 2000 to March, 2001. The outline of human genome sequence was published in June, 2000. In Japan, human gene analysis was such that, as the basic technology of the bio industry, a millennium project was decided in the budget of fiscal 2000. The full-length cDNA structure analysis is the core of the project. The libraries of cDNA were prepared using full-length and more than 4-5kbp-long cDNAs by oligo-capping method. It began from determining partial sequence data at end cDNA, and then, with new clones selected therefrom, full-length human cDNA sequence data were determined. The partial sequence data determined by fiscal 2000 were 1,035,000 clones while the full-length sequence data were 12,144 clones. The sequence data obtained were analyzed by homology search and translated into amino acid coding sequences, with predictions conducted on protein functions. A clustering method was examined that selects new clones from partial sequences. Database was constructed on gene expression profiles and disease-related gene sequence data. (NEDO)

  16. Buckling collapse analysis of framed structures by using adaptively shifted integration technique. Junnogata shifted intergration ho ni yoru honegumi kozo no zakutsu hokai kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Toi, Y.; Isobe, D. (The University of Tokyo, Tokyo (Japan). Institute of Industrial Science)

    1993-09-01

    This paper describes the following matters on application of an adaptively shifted integration technique to a buckling collapse analysis of framed structures: This method is a method in a finite element analysis using three-dimensional girder elements to arrange value integration points at optimal locations in a linear analysis if the elements are in an elastic transform condition on the whole. The method then moves the value integration points so that plastic hinge will occur in these locations immediately after part of the elements has yielded. The method was applied to analyzing an elastic buckling problem in several loading patterns for either a both-end supported or a one-end fixed beam member. A result was obtained that a number of elements required for one member is four at minimum. In a buckling analysis of framed structures, a satisfactory result was obtained by using an automatic element segmenting algorithm, which begins the analysis with one element one member, and immediately after a member is determined with a possibility of generation of buckling, splits that member only into four elements. 6 refs., 5 figs.

  17. Improvement of D.I. diesel engine combustion using numerical simulation; Chokufun diesel kikan no nensho kaizen shuho. Suchi kaiseki ni yoru torikumi

    Energy Technology Data Exchange (ETDEWEB)

    Minami, T.; Adachi, T.; Isyii, Y. [Isuzu Motors Ltd., Tokyo (Japan)

    1999-04-01

    For the purpose of improving DI diesel engine combustion, it is important to predict air flow of intake and exhaust manifold, intake port flow, combustion chamber swirl and fuel spray combustion. This paper describes the application of numerical simulation to the engines, the analysis of phenomena and a problem of simulation model modification. (author)

  18. Improvement of image velocimetry based on a spatio-temporal correlation method; Jikukan sokan ni motozuku ryushi gazo sokudoba keisokuho no kaiseki seino kaizen

    Energy Technology Data Exchange (ETDEWEB)

    Yamada, H. [Tokuyama College of Technology, Yamaguchi (Japan); Arifuku, T. [Komatsu Ltd., Tokyo (Japan); Koga, K. [Yamaguchi University, Yamaguchi (Japan). Faculty of Engineering

    1998-05-31

    In the image velocimetry, it is generally required to detect the various velocity in each position of the flow field. But the maximum velocity which the usual velocimetry can detect has been limited in about 1 pixel per frame. Then, in order to measure the wide range of velocity vectors from the dynamic image, the improvement of performance in the image velocimetry based on a spatio-temporal correlation method would be attempted by enlarging the analytical region and by interpolating the new frame. The analytical performance of velocimetry was estimated by measuring the velocity from the flow dynamic image made artificially on the personal computer so as to simulate the flow of fluid containing a lot of small particles. As the results, the velocity range of the improved velocimetry became larger than that of the usual velocimetry. 21 refs., 13 figs., 1 tab.

  19. Analysis of flow and turbulence in high pressure spray by image processing technique. Gazo shori ni yoru koatsu funmunai ni okeru ryudo to midare no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Yamaguchi, I. (Japan Automobile Research Institute, Inc., Tsukuba (Japan)); Nishida, M.; Nakahira, T.; Komori, M.; Tsujimura, K.

    1992-07-01

    The image processing technique (reported previously) developed for analyzing combustion in a diesel engine was applied to measuring flow and turbulent intensity in a high pressure spray. Copper vapor laser beam in a sheet form with a thickness of 0.2 mm was injected into the cross section of a spray center in a container. Photographs of the scattered lights of the beam is converted into digital values and analyzed using an image processing equipment. With the laser light emitting frequency set to 20 KHz at a maximum, the flow velocity is measured from changes in photographic image density in two subsequent photographs, and the turbulence intensity from changes in brightness intensity. As a result, it was clarified that the flow velocity and the turbulence intensity in the spray cross section increase with raising the spray pressure. Further discussions are being made on the measuring method, including changes in the image brightness associated with entrance and exit of spray particulates into the laser beam sheet, and effects of the laser beam sheet thickness on the measurements of the turbulence intensity. 6 refs., 6 figs.

  20. Dynamic stability analysis of circular arch subjected to follower forces with small disturbances; Judo kaju wo ukeru enkei arch no yuran ni yoru doteki kyodo to anteisei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Fukuchi, N.; Okada, K. [Kyushu University, Fukuoka (Japan). Faculty of Engineering; Hirano, Y. [Sumitomo Heavy Industries, Ltd., Tokyo (Japan)

    1997-09-04

    This paper describes the deformation and dynamic stability of circular arch subjected to follower forces in a submerged membrane type marine structure reinforced by arch frames. Governing equations for finite deformations of the circular arch subjected to follower forces are introduced using an embedded curve coordinate, which are formulated by applying Galerkin method. In addition, equations of motion due to small disturbances under given condition of loading are introduced. Based on these equations, dynamic stability of the arch is analyzed by means of Runnge-Kutta-Gill method, to clarify the relationship between disturbances and instability regions and the resulting phenomena. Near the boundary regions of stability, both amplitude and cycle of deformation are greatly affected by the amplitude of disturbances. The dynamic instability is governed by the inverse symmetry primary mode with minimum characteristic frequency which is specific for the circular arch. The dynamic stability has high parameter dependency, and the instability regions have a complicated shapes. Although flattened arch has a smaller static critical load, it provides the dynamic stability against the disturbance. 5 refs., 10 figs.

  1. Bayesian reliability analysis for non-periodic inspection with estimation of uncertain parameters; Bayesian shinraisei kaiseki wo tekiyoshita hiteiki kozo kensa ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Itagaki, H. [Yokohama National University, Yokohama (Japan). Faculty of Engineering; Asada, H.; Ito, S. [National Aerospace Laboratory, Tokyo (Japan); Shinozuka, M.

    1996-12-31

    Risk assessed structural positions in a pressurized fuselage of a transport-type aircraft applied with damage tolerance design are taken up as the subject of discussion. A small number of data obtained from inspections on the positions was used to discuss the Bayesian reliability analysis that can estimate also a proper non-periodic inspection schedule, while estimating proper values for uncertain factors. As a result, time period of generating fatigue cracks was determined according to procedure of detailed visual inspections. The analysis method was found capable of estimating values that are thought reasonable and the proper inspection schedule using these values, in spite of placing the fatigue crack progress expression in a very simple form and estimating both factors as the uncertain factors. Thus, the present analysis method was verified of its effectiveness. This study has discussed at the same time the structural positions, modeling of fatigue cracks generated and develop in the positions, conditions for destruction, damage factors, and capability of the inspection from different viewpoints. This reliability analysis method is thought effective also on such other structures as offshore structures. 18 refs., 8 figs., 1 tab.

  2. Observations and analysis of free groundwater levels and groundwater pressure in landslide slopes. Jisuberi shamen no jiyu chikasuii, chikasuiatsu no kansoku to kaiseki ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Yoshida, S; Nakano, T [Niigata Univ., Niigata (Japan). Faculty of Agriculture; Inaba, K [Niigata Univ., Niigata (Japan). Graduate School; Sato, O [Niigata Univ., Niigata (Japan)

    1991-12-25

    It is well known that the landslides in Tertiary systems abundantly found in Niigata Prefecture, etc., frequently occur especially in the snow melting season or the heavy rain season. For studying the occurrence of such landslides, exploration of the actual condition of groundwater and evaluation of the strength of earth are very important even when the landslide occurring mechanism can be presumed in a relatively simple way about the soil mechanics. Therefore, great importance is attached to the observation and investigation on the groundwater level and pressure at landslide sites and stability analyses have been actively performed. However, it is considered that several fundamental problems still exist in the method for estimating the groundwater level and pressure in landslide slopes from the observation method and data on groundwater levels and pressure (pore pressure). In this paper, these fundamental problems are examined on the basis of concrete observations made by the writers on landslide slopes at Matunoyamagoe and Higashimusikame landslide sites in Niigata Prefecture for the past several years. 6 ref., 6 figs., 2 tabs.

  3. Construction of analysis system on personal computer for slope disaster information using remote sensing technology. Remote sensing wo riyoshita pasokongata no shamen bosai joho kaiseki system no kochiku

    Energy Technology Data Exchange (ETDEWEB)

    Setojima, M [Kokusai Kogyo Co. Ltd., Tokyo (Japan); Goto, K [Nagasaki Universtiy, Nagasaki (Japan). FAculty of Engineering

    1991-08-25

    An analytical system with superposition of images which uses picture elements as a unit was developed to treat information obtained by remote sensing and other geographical information by superposing the images in order to extract the second information which expresses qualitatively and quantitatively the degree of slope disaster in the future, based on the first information about the damage caused by disaster and landform and geology. As necessary function for analytical system of the second information, precise correction of geometrical strain, superposition of images, visual reading treatment, and output of analytical result in map are listed and described respectively. Next, the detailed explanation of hardware and software of pilot system which used personal computer was given. The analytical procedure and result of land conditions around the landslide occurred at Nagano city in 1985 was shown. 3 refs., 1 fig., 1 tab.

  4. Dynamics of hydrogen induced blistering of a low carbon steel sheet by lamb waves analysis; Ramuha no teiryo kaiseki ni yoru hakubanteitansoko no suiso hare no dainamikkusu

    Energy Technology Data Exchange (ETDEWEB)

    Sato, Teruyoshi.; Takemoto, Mikio. [Aoyama Gakuin University, Tokyo (Japan). Faculty of Science and Engineering

    1999-06-15

    With the aim of studying the fracture dynamics of environmentally assisted fractures in thin plates, we developed a new source simulation method of the zeroth-order symmetric (or S{sub 0}-) Lamb wave using the experimental overall-transfer function of the system. The transfer function was determined by the time-domain deconvolution of detected S{sub 0}-Lamb component by the artificial fracture source of a compression -type PZT element whose vibration kinetics was estimated by the iteration so that the S{sub o}-waveform detected. Hydrogen induced blistering was found to be caused by the succession of fast Mode-I fracture with source rise times from 0.6 to 1.0{mu}s. The crack volume estimated by the source simulation corresponded to that of fine blistering with an opening displacement of 5{mu}m. As the estimated fracture kinetics of hydrogen blistering coincide with those of delayed fracture of high tension low alloy steel under tensile loading, the kinetics of first and micro-fractures and blistering induced by hydrogen gas precipitation appears to be independent on the hydrogen solubility and strength of steels, the applied stresses and the orientation of cracks. (author)

  5. FY1999 Meeting of The Society of Heating, Air-Conditioning and Sanitary Engineering of Japan. Air flow analysis II; 1999 nendo gakujutsu koenkai gaiyo. Kiryu kaiseki 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-12-05

    B-4 reported the result on particle size distribution experiment and numerical calculation with FEM and {kappa}- {epsilon} model using a welding simulation equipment for generation and removal of welding fume in a narrow site. Discussion was held on the position of an exhaust hood. B-5 reported the study results on indoor air flow conditions derived from a movable nozzle air conditioning system by model experiment and numerical analysis. Disagreement of both results between the experiment and calculation in the case of two diffusing nozzles attached at 30 degrees toward the inside was improved by shortening a sampling time for calculation. B-6 reported the study results on some parameters such as wind velocity, flow rate and inlet position, and the energy saving effect of an air curtain (wall outlet, floor inlet) to control air conditioning areas for a part of large spaces by numerical analysis of air flow. Discussion was held on calculation of 2-D flow and layered flow. B-7 is the 5th research report on measurement of air flow conditions such as measurement of large space environment by video camera and balloon. Study on the camera for automatic measurement, and the identification technique of balloon positions was reported. (translated by NEDO)

  6. Optimization of the catalytic converter internal flow by using 3D-CFD; Sanjigen nagare kaiseki ni yoru shokubai converter nai nagare no saitekika

    Energy Technology Data Exchange (ETDEWEB)

    Toi, M; Sugiura, S [Toyota Motor Corp., Tokyo (Japan)

    1997-10-01

    By using computational fluid dynamics and statistical quality control method, we investigated the contribution of front and rear catalytic converter cone shape for the pressure loss and the partial flow, also led the optimal terms and the predictional formulations efficiently. According to this, we can investigate the optimal position of the catalytic converter from the planning. 8 figs., 6 tabs.

  7. Study of transient in-cylinder air motion under motoring condition with diesel engine; Diesel engine no motoring ji no tonai ryudo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kitasei, T; Nakagawa, T [Mitsubishi Motors Co., Tokyo (Japan); Yamazumi, N [Ryoyu Keisan Co., Tokyo (Japan)

    1997-10-01

    The transient in-cylinder air motion have been investigated for reducing exhaust emissions and improving engine performance. A commercial CFD code was used for this purpose. For analyzing under engine motoring condition, the numerical model has a moving piston, intake and exhaust ports with moving valves. As result, exhaust port performance may be analyzed under steady condition, but intake port performance have to be analyzed under unsteady condition. Because transient in-cylinder air motion during intake process is different from steady in-cylinder air motion under influence of piston surface and air viscosity. 4 refs., 11 figs.

  8. Study of heart rate variability in driving situation by fractal analysis; Fractal kaiseki ni yoru untenchu no shinpaku hendo no bunseki

    Energy Technology Data Exchange (ETDEWEB)

    Hirata, Y; Nagaoka, M [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    This paper will explain method of fractal analysis for heart rate variability, as measuring method of mental stress in vehicle driving. In the previous, although there was a measuring method of mental stress by RSA, a issue arise such as reliability of analysis, because driver`s heart rate affect by respiration and muscle motion as well. We have established a method to measure mental stress by fractal dimension. And tried it is the proving ground and public road driving. We have confident that it is more reliable than RSA to quantify driver`s mental stress and fatigue. 9 refs., 9 figs., 1 tab.

  9. Summary of [alpha]-FLOW, a general purpose three-dimensional fluid analyzing system. Han[prime]yo sanjigen ryutai kaiseki system [alpha]-FLOW no gaiyo

    Energy Technology Data Exchange (ETDEWEB)

    Koike, H [Fuji Research Institute Corporation, Tokyo (Japan)

    1992-08-01

    The [alpha]-FLOW is a three-dimensional fluid analyzing software developed from cooperations among research institutes of private business companies and universities in Japan under the assistance from the Ministry of International Trade and Industry. This paper describes its summary and features. The system is a discrete system utilizing a supercomputer and a work station. The analysis modules incorporated in the system include those for non-compressive fluid analysis, compressive fluid analysis, analysis of non-compressive fluid including free surface, analysis of flows including combustion and chemical reactions, substance migration analysis, and heat transfer analysis. It has a feature that even non-specialists can analyze fluids easily as a result of the development of an expert system to support the numerical analysis. Development of the input data preparing system enables to utilize the work station to process from shape modeling to grid generation, and from inputting analyzing condition data to calculating the flows and outputting the calculation result, all in dialogue modes. An open architecture was adopted. 27 refs., 7 figs., 10 tabs.

  10. Analysis and model-tests on vortex-induced oscillation of bridges; Kyoryo no uzu reishin ni kansuru sanjigen oto kaiseki to fudo jikken

    Energy Technology Data Exchange (ETDEWEB)

    Yamamura, N. [Hitachi Zosen Corp., Osaka (Japan); Ogasawara, M. [Kansai Electric Power Co. Inc., Osaka (Japan); Shiraishi, N. [Maizuru College of Technology, Kyoto (Japan); Nanjo, M.

    1996-07-21

    In order to predict the three-dimensional response to vortex-induced oscillation of bridges, a model was investigated using the aerodynamic force coefficient including vortex-induced and self-excited forces, and the nonlinear response coefficient expressing constancy of response to vortex-induced oscillation. In the analysis, change of frequency in wind by the self-excited force, aerodynamic damping term, effect of the mode, and correlation of the vortex-induced force along member axis were taken into account. The aerodynamic force and nonlinear response coefficients were identified from the homogeneous and turbulent flow results of wind tunnel tests using a two-dimensional spring support rigid body model with varied damping factor. The aerodynamic damping term can be estimated from the nonlinear aerodynamic force coefficient, but it was enough to calculate it from the quasi-stationary coefficient in general bridge profiles. The correlation of the vortex-induced force was obtained from measurements of the vertical variation components of trailing flow under the resonance state, or the pressure distribution of the member surface. When comparing to the wind tunnel test of three-dimensional model of cable-stayed bridge, the response amplitude by the present analysis method was consistent well with the test results rather than by the method in which the amplitude of two-dimensional model was corrected. 10 refs., 4 figs., 3 tabs.

  11. Ultimate strength analysis of long-span cable-stayed bridges; Chodai chachokyo no shukyoku kyodo kaiseki to kyodo ni kansuru ichikosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Xie, X.; Yamaguchi, H. [Saitama Univ., Urawa (Japan)] Nagai, M. [Nagaoka Technical Coll., Niigata (Japan)

    1998-07-21

    Recently, span of cable-stayed bridges has been getting loner and longer, present situation is that cable-stayed bridges with span 600 to 800m class have been built inside and outside the country, and accurate determination of its ultimate strength has been an important problem statistically. However, concrete design method for evaluating load bearing stress of long-span cable-stayed bridge. Particularly of the main beam whose axial stress is dominating, has not been established so far. As for cable-stayed bridge, even for long-span, effect of plasticization of cross section on ultimate strength is severe because there is little effect of geometric nonlinearity and it is thought that accurate evaluation of ultimate strength only by elastic finite potential analysis is difficult. Accordingly, it is necessary to study the behavior by using combined nonlinear analysis considering the nonlinearity of the material in order to evaluate the safety and economy to long-span cable-stayed bridge. In this report, 3 dimensional analysis method was formularized taking into account the combine nonlinearity of multi-box girder and analysis program of ultimate strength behavior of long-span cable-stayed bridge was developed. 19 refs., 17 figs., 2 tabs.

  12. Analysis of vibration characteristics of a prestressed concrete cable-stayed bridge using strong motion observation data. Jishin kansoku ni motozuku PC shachokyo no shindo tokusei no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Inatomi, T. (Port and Harbour Research Institute, Kanagawa (Japan)); Takeda, T.; Obi, N.; Yamanobe, S. (Kajima Corp., Tokyo (Japan))

    1994-05-31

    Records of seismic observation were analyzed for the purpose of proving the validity of antiseismic design for a prestressed concrete (PC) cable-stayed bridge. This bridge is a three span continuous PC cable-stayed bridge of 498 m in bridge length, and is constructed on alluvial soft ground. The seismometer used is a servo type accelerometer. The observed frequency and mode of seismic vibration are in good agreement with those in the analysis and hence the validity of modelling of the structure in designing was confirmed. It was also confirmed that the bending vibration and torsional vibration of the main girder are separated as designed. However, some points such as a large difference in the observed vibration and analysed vibration in the mode accompanying rotation of the base are listed as problems to be solved in antiseismic design. In order to investigate the attenuation constant of the upper structure, a seismic wave response analysis was performed and its results were compared with observed ones. When the attenuation constant is assumed to be 2%, agreement of data between analysis and observation is good, and it is considered that the attenuation constant of the upper structure only without the effects of attenuation of energy escape from the base and crack generation in concrete was about 2% in the observed earthquake (maximum acceleration on the ground: 51 Gal). 8 refs., 9 figs., 2 tabs.

  13. Bayesian reliability analysis for non-periodic inspection with estimation of uncertain parameters; Bayesian shinraisei kaiseki wo tekiyoshita hiteiki kozo kensa ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Itagaki, H [Yokohama National University, Yokohama (Japan). Faculty of Engineering; Asada, H; Ito, S [National Aerospace Laboratory, Tokyo (Japan); Shinozuka, M

    1997-12-31

    Risk assessed structural positions in a pressurized fuselage of a transport-type aircraft applied with damage tolerance design are taken up as the subject of discussion. A small number of data obtained from inspections on the positions was used to discuss the Bayesian reliability analysis that can estimate also a proper non-periodic inspection schedule, while estimating proper values for uncertain factors. As a result, time period of generating fatigue cracks was determined according to procedure of detailed visual inspections. The analysis method was found capable of estimating values that are thought reasonable and the proper inspection schedule using these values, in spite of placing the fatigue crack progress expression in a very simple form and estimating both factors as the uncertain factors. Thus, the present analysis method was verified of its effectiveness. This study has discussed at the same time the structural positions, modeling of fatigue cracks generated and develop in the positions, conditions for destruction, damage factors, and capability of the inspection from different viewpoints. This reliability analysis method is thought effective also on such other structures as offshore structures. 18 refs., 8 figs., 1 tab.

  14. Next-generation coal utilization technology development study. Environmentally-friendly coal combustion technology; O2/CO2 combustion technology; Sekitan riyo jisedai gijutsu kaihatsu chosa. Kankyo chowagata sekitan nensho gijutsu (sanso nensho gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    For the purpose of developing combustion systems in which environmental pollutants are less emitted from coal-fired boilers, conducted in fiscal 1994 were a study of load followability of oxygen producing equipment, and element and basic tests on oxygen combustion systems. Dynamic simulations were made to confirm load followability of low-purity oxygen producing equipment. Further, a test was made on starting time of oxygen producing equipment. As a result of the simulation, favorable load followability was confirmed except for some of the process. The width of variation of the product oxygen purity was {plus_minus} 0.7% at maximum. In the element test on oxygen combustion systems, an experiment on the oxygen combustion using pulverized coal was conducted to study heat collection characteristics of furnace and response to multi-kind of coal. A study of balance of S content, experiments on characteristics of crushing/transporting pulverized coal, etc. were added. There were seen no peculiar differences in CO2 transport and air transport. 216 figs., 31 tabs.

  15. Fiscal 1996 comprehensive report on R and D on advanced chemical processing technology; 1996 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu sokatsu hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu / sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    R and D was conducted on technology for composite thin film formation such as laser MOCVD, for thin film lamination, and for synthesis reaction and characterization in compounded fields where temperature/pressure/magnetic field/electrical field, etc., are compounded, for the purpose of creating materials with functions newly added or reinforced by regulating compositions and structures through atomic/molecular orders. The R and D was conducted on 24 themes, which were rearranged into four categories. Examples of the themes are as follows; development of super hard permanent magnets by crystallization process control of Nd-Fe-B amorphous alloys, as for structural control technology; research on high functional thin film sensors (PbLaTiO{sub 3}) using laser MOCVD, and research on ultra thin film by multi-ion-beam sputtering with ion/photo irradiation, as for thin film technology; R and D on highly ordered structure control technology in electrode surface compounded reaction fields, as for compounded fields; and, research on diagnostic technique for compounded reaction fields by laser-ionization method, as for supporting technologies. (NEDO)

  16. Next-generation coal utilization technology development study. Environmentally-friendly coal combustion technology; topping cycles; Sekitan riyo jisedai gijutsu kaihatsu chosa. Kankyo chowagata sekitan nensho gijutsu bun`ya (topping nensho gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    As a realistic measure to reduce environmental pollutants emitted from coal-fueled boilers, a developmental study was conducted of high-efficient combustion systems. In fiscal 1994, four types of topping cycles which are different in system structure and gasifier type were selected, and topping cycles assuming a 300MW-class power plant were trially designed. Further, an evaluation of adaptability of these systems was made, and an selection of the optimum system for the early development was made among the systems. As a result, the evaluation was obtained that `a system using air blown gasifier` is most suitable for conducting the next-stage research. In the element test on the topping combustion technology, collection was made of data of desulfurization activity, desulfurization oxidation mechanism and alkali metal behavior at the laboratory level, data of temperatures and gas concentration distribution in coal gasification, data of simulation of the gasifier reaction, and the other data. 262 figs., 66 tabs.

  17. WE-NET. Substask 4. Development of hydrogen production technologies; 1998 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET). 4. Suiso seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Under the hydrogen-utilizing international clean energy system technology project WE-NET (World Energy NET Work), researches were conducted aiming at the establishment of a hydrogen production technology through electrolysis of polymer electrolyte solution. In fiscal 1998, element technologies were developed for the development of high-efficiency/large-capacity water electrolyzing plants using electrodeless deposition and hot pressing, research and investigation of optimum operating conditions were conducted, and a service plant conceptual design and a polymer electrolytic membrane were developed. In addition, literature was searched for the current state of ion exchange membranes and water electrolysis, both indispensable for the hydrogen production technology discussed in this paper. In the field of lamination of large cells (electrode surface:2500cm{sup 2}), an excellent energy efficiency level exceeding 90% set as the target for a large laminated cell performance test was achieved - 92.6% by electrodeless deposition and 94.4% by hot pressing. As for polymer membranes capable of resisting high temperatures, a membrane with an ionic conductivity of 0.066S/cm at 200 degrees C was newly developed. (NEDO)

  18. Survey of the trend of technical development and industrial policies in Asian countries; Asia shokoku ni okeru gijutsu kaihatsu no doko to sangyo gijutsu seisaku ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    A sharp rise in industrial productivity in Asia countries indicates a rising level of R and D technology. Since Japan has not clearly grasped the R and D ability in these countries, it has not given appropriate personnel/material R and D support to them. Therefore, for the purpose of exactly grasping the R and D ability of Asian countries (Korea, Taiwan, the Philippines, Indonesia and India) and studying an effective and appropriate method for R and D cooperation, a survey was conducted of R and D potentials in Asia and R and D support policies of the countries. As a result of the survey, the following are taken up as items to be considered: promotion of exchanges between Tsukuba, etc. in Japan and research/university towns and science parks being constructed in lots of countries, participation of private companies in high-tech joint work in cooperation with Japan, sending information from Japan using internet, etc. and exact grasp of needs at partner side, cooperation given to new comers without asking for research results (use of OB researchers, etc.) 25 refs., 39 figs., 59 tabs.

  19. Report on technological trend survey in fiscal 2000. Survey on bio-technology development strategy; 2000 nendo gijutsu doko nado chosa hokokusho. Bio technology gijutsu kaihatsu senryaku chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Survey and research have been performed on bio-technologies as to their seeds of technological development projects to be worked on by the government from the viewpoint of industrial utilization technologies. In the survey on the trends of research and development and technological development on human-genomes, the survey has been done on the status of execution in the Millennium Genome Project, and how the works related to human-genomes are done at the bio-related government based research organizations and the private sector research organizations. Trends related to the human-genome research in overseas countries were also surveyed. With regard to the future prospect of research and development in the post genome age, discussions were given on the result of the questionnaire survey on opinion leaders in the industrial, governmental and academic areas. In discussing the viewpoint of the industrial utilization technologies related to human genomes, candidates assumed usable in the genome related application fields were discussed, and a basic framework of a technological map was prepared. Based on the results thereof, the technological development areas anticipated to be important in the future were extracted, and the technological development themes were discussed. (NEDO)

  20. Survey of the situation of technology succession. Databases of articles including in industrial technology museums; Gijutsu keisho jokyo chosa. Sangyo gijutsu hakubutsukan shuzohin D.B. hen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    To promote the succession of history of and the creative use of industrial science technologies, the paper made lists and databases of the articles of industrial technology museums and material halls in Japan. Record/preservation and collection/systematization of history of the industrial technology is useful for forming bases necessary for promotion of future research/development and international contribution. Museums and material halls are the fields for making comprehensive and practical activities. The data were made as one of the basic databases as the first step for promoting activities for examining the technical succession situation in a long term range continuously and systematically. In the classification of the data, the energy relation was divided into electric power, nuclear power, oil, coal, gas and energy in general. Others were classified into metal/mine, electricity/electronics/communication, chemistry/food, ship building/heavy machinery, printing/precision instrument, and textile/spinning. Moreover, the traffic relation was classified into railroad, automobiles/two-wheeled vehicles, airline/space, and ships. Items were also set of life relation, civil engineering/architecture, and general. The total number of the museums for the survey reached 208.

  1. FY 2000 research cooperation project on plastic processing technology/quality inspection technology; 2000 nendo kenkyu kyoryoku jigyo. Plastic kako gijutsu hinshitsukensa gijutsu ni kansuru kenkyu kyoryoku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the purpose of improving the production technology of plastic products in Saudi Arabia, the joint development was made of the formation technology/quality inspection technology of agricultural use and food packaging use polyolefin film optimum to environmental conditions of the site, in the light of the needs there, and the FY 2000 results were reported. In the field survey/joint study, for the xenon type weather resistant testing machine and the extruder of the inflation film forming machine which were transported from Japan, the following were carried out: confirmation of the situation of accepting them on the site, functional test of computer of the extruder, installation of the machine testing weather resistance, and the trial operation. In the domestic support study, the extrusion test at laboratory was conducted using the polyethylene resin produced on the site to acquire the basic data for formation stability. Further, the film formation test was made using the equipment with the same specifications as those of the equipment introduced to the site to study the performance of screw extrusion and the formation stability of film. Also conducted were the analytical test/quality evaluation of resin materials/film. (NEDO)

  2. Intelligent social infrastructure technology. Infrastructure technology support ultra-reliable society; Chiteki shakai kiban kogaku gijutsu. Choanshin shakai wo sasaeru kiban gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    This survey was conducted to construct the core of intelligent social infrastructure technology (ISIT), and to investigate its practical application to industries and society. For realizing the ultra-safe and ultra-reliable society, it is necessary to develop the ISIT which can integrate various social infrastructures, such as architecture, city, energy, and lifeline systems required for living. For the systematization of cities, it is necessary to process and control the intelligent information by holding integrated and transverse information in common, as to logistics, lifeline, communication, monitoring, and control. For the communication engineering, the centralized systems are acceleratingly to be converted into the distributed network systems. For the mechanical engineering, intelligent control and robot technology are required. For the architectural engineering, a concept exceeding the conventional antiseismic structure idea is investigated. It is necessary to develop a new information technology providing an intelligent social infrastructures by merging the information networks and the physical world seamlessly. Necessity of ISIT is large for constructing the intelligent and ultra-reliable society consisting of these integrated and organized networks. 84 refs., 68 figs., 6 tabs.

  3. Numerical method to calculate flow-induced vibration in turbulent flow. 3rd Report. Analysis of vortex-induced vibration in an array of elastically supported tubes; Ranryuba ni okeru ryutai kozotai rensei shindo kaiseki shuho no kaihatsu. 3. Kangun ni okeru uzu reiki shindo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Sadaoka, N.; Umegaki, K. [Hitachi, Ltd., Tokyo (Japan)

    1996-01-25

    A vortex-induced vibration of an array of elastically supported tubes is simulated in two-dimension by using a flow-induced vibration analysis program, which was developed in order to evaluate flow-induced vibration in various components such as heat exchangers. From a comparison of calculated results and experimental data, the following points are observed. (1) For the calculated results in a 5 {times} 5 square array, the flow pattern surrounding the first-row tubes is markedly different from that observed in the second-row or third-row tubes. This flow pattern is the same as that obtained from the experiment. (2) All tubes begin to oscillate due to unsteady fluid force and the oscillating mode is different for each row of tubes. These oscillation patterns show the same tendency in the experiments and it is concluded that the developed method can simulate vortex-induced vibration in an array of elastically supported tubes. 19 refs., 10 figs., 1 tab.

  4. Report for fiscal 1981 on comprehensive survey for nationwide geothermal resources. Survey on radar imaging method - geothermal conception design (Associated material 3 - materials related to U.S. geothermal analysis contractors and consultants); 1981 nendo zenkoku chinetsu shigen sogo chosa hokokusho. Radar eizoho chosa (chinetsu kaiseki gainen sekkei futai shiryo 3 (Beikoku chinetsu kaiseki contractor oyobi consultant kankei shiryo))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-10-01

    This paper summarizes the U.S. geothermal analysis contractors, including the Aero Service Corporation, the EG and G Group, the QEB Group, and the Republic Geothermal, Inc., and the consultants, including the Remote Sensing Consultants. For the Aero Service Corporation, the paper states histories of and books written by major personnel. For the EG and G Group, the paper states the outlines of such companies as EG and G Services, EG and G Geometrics, Mars Associates, Inc., and UURI, as well as histories of and books written by major personnel. For the QEB Group, the paper states the outlines of such companies as QEB, Inc., and Eureka Resource Associates, Inc. as well as histories of and books written by major personnel. For the Republic Geothermal, Inc., the paper states the company outline, histories of and books written by major personnel. For the Remote Sensing Consultants, the paper states the history of and books written by Dr. R.J.P.L. Lyon. (NEDO)

  5. Analysis and evaluation of data to accompany the development of geothermal water use power plant, etc. Analysis and evaluation of polymeric materials exposed to geothermal heat at depths; Nessui riyo hatsuden plant nado kaiahtsu ni tomonau data no kaiseki hyoka. Shinbu chinetsuyo kobunshi zairyo no kaiseki hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Kenmochi, K.; Takahashi, J.; Takayanagi, H.; Tsuda, H.; Nagai, H.; Takeuchi, K. [Agency of Industrial Science and Technology, Tokyo (Japan); Nagasawa, C. [Kumamoto Prefectural Industrial Technology Center, Kumamoto (Japan); Hamada, T. [Science University of Tokyo, Tokyo (Japan). Faculty of Industrial Science and Technology

    1998-11-20

    Remaining life assessment technologies for polymeric materials for geothermal power generation and methods for improving their heat resistance are reviewed, and concepts of scale-free technologies for FRP (fiber-reinforced plastic)-sandwiched pipelines for hot water transportation are described. Materials based on PTFE (polytetrafluoroethylene) and NBR (acrylonitrile-butadiene rubber) are chosen for use as DHM (down-hole motor) sealing material and for application to the stator. With PTFE as the matrix, four candidates are prepared, which are additive-free PTFE, and GF/PTFE, GF/CF/PTFE, CF/PTFE, each containing 20w% GF (glass fiber) and/or 20w% CF (carbon fiber). With NBR serving as the matrix, two candidates are prepared, which are NBR-A containing 20w% aramid fiber and NBR-W which is a vulcanized NBR-A. External force, heat, light, and mud are named as the degradation factors, and each factor and some combinations of external force, heat, and light are repeatedly imposed on the materials. During the effort to develop an apparatus for simulating geothermal circumstances in which the factors will affect the materials in complicated ways, a life assessment technique is developed for such polymeric materials. A technology is developed for providing polymeric rubber elastomer with a heat resistant feature. A study is made to replace transportation pipelines for injection wells with FRP sandwiched pipelines. (NEDO)

  6. Analysis and evaluation for practical application of photovoltaic power generation system. Research and development of elemental technologies for thin-type solar cells; Taiyoko hatsuden system jitsuyoka no tame no kaiseki hyoka. Usugata takessho taiyo denchi jitsuyoka no tame no kaiseki hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Sekikawa, T; Shimokawa, R; Yui, N; Takato, H; Takahashi, T; Ishii, K; Suzuki, E; Nagai, K; Kawanami, H; Tanimoto, J; Sakuta, H; Iwata, Y; Saito, N; Koyama, K; Sawada, S [Electrotechnical Laboratory, Tsukuba (Japan)

    1994-12-01

    Described herein are the results of the FY1994 research program for analysis and evaluation for thin substrate polycrystalline solar cells. In order to analyze the structures of the grain boundaries in and interfaces with the cell substrate, and their effects on electrical activity, the photoluminescence (PL) measurement which enables spectroscopic analysis is applied to electromagnetically cast Si crystals. There are good correlations among PL luminous intensity, MBIC output and dislocation density for the grain boundary which contains many strains and serves as the dislocation source, because carriers in such a grain boundary easily disappear to reduce its luminous intensity at the band ends. Concrete scenarios for realizing thin-film silicon solar cells of high efficiency are presented, based on the analysis of the light-contained thin-film silicon solar cells of high output current, made in the previous year on a trial basis. An alumina substrate of high reflectivity is produced by the experiments of combining various devices. It is expected to realize high output current for the thin-film solar cells. 3 figs.

  7. Numerical modeling of historical change of volcanic heat sources: Numerical modeling of heat and mass transport up to 1000 degree C; Kazansei netsugen no keiji henka no shumyureshon kaiseki: 1000 degree C madeno netsu{center{underscore}dot}ryutai shumyureshon kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Hanano, Mineyuki [JMC Geothermal Engineering Corp., Iwate (Japan)

    1998-12-01

    Temperature structure and its historical change around volcanos has been of interest for volcanology, geothermal development, etc. Magmatic intrusives have temperatures ranging from 700 to 850 degree C. Thus, there exists super-critical fluid around them. Numerical modeling of temperature changes around young volcanos and their heat sources thus requires treatment of the super-critical fluid. We describe one method for effective treatment of the super-critical fluid in the numerical modeling of porous media for the purpose of solving large-scale high-temperature problems of such phenomena. (author)

  8. Corrosion control of electronic materials; Denshi zairyo no fushoku seigyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Ishikawa, Y. [Hitachi Ltd., Tokyo (Japan). Mechanical Engineering Research Lab.

    1995-11-20

    Electronic materials are used in wide varieties of materials starting from hightech products like large computers, information network facilities and so forth, to vehicles, home electrical appliances, OA facilities, video game. Again, even though the part itself may be comparatively simple, high reliability is required when used in high degree system. Further, their uses irrespective to indoor or outdoor environments, are spread to wide range starting from the severe corrosive environments like coastal industrial area, drainage treatment place and so forth to low corrosive environments like general housing, offices and so forth. However, the classification of materials according to the environments where they are used is not so much carried out because preference is given to the function as an electronic part different to the large mechanical construction materials. In this report, regarding the corrosion control technology of electronic materials specially approach is made from material side, and among the various types of electronic materials, aluminium cable for LSI and magnetic materials are outlined. 37 refs., 10 figs., 2 tabs.

  9. Report for fiscal 1995 by basic liquefaction technology subcommittee; 1995 nendo ekika kiban gijutsu bukai hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Delivered at the 1st meeting are a report on the fiscal 1995 research plan and an interim report, involving the use of coal-derived oils, research on refining technology using a PDU (process developing unit), reforming technology and petroleum blending technology for coal-derived oils, development of new reforming catalysts, technology of heterocompound separation, and the development of applications. Reported in relation with the development of environmentally friendly coal liquefaction technology are the study of coal liquefaction conditions, study of the upgrading of basic liquefaction techniques for the improvement and rationalization of the liquefaction process, and a project of liquefaction technology internationalization. A report is also given on a liquefaction catalyst study meeting. At the 2nd meeting, reports are delivered on the development of environmentally friendly coal liquefaction technology, including a briefing on the situation in general, designing of highly active catalysts, elucidation of the mechanism of emergence of activity, achievement of the marginal yield of coal-derived oils, and the properties of catalyst attached to coal. Delivered in relation with the use of coal-derived oils and technology for their refining are a briefing on the situation in general and reports on the blockup to occur in the naphtha fraction process and measures to counter the problem, control of the metamorphosis of active metals in reaction, heterocompound separation technology, and the development of applications. (NEDO)

  10. Investigational report on the trend of control technology; Seigyo gijutsu doko chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-06-01

    For the purpose of corresponding to changes of the industrial structure and making full use of the control technology, the paper investigated the state of the application. High-grade automation in the manufacturing industry has reached the spread of use at big companies for these 10 years. The hierarchical structure of business/process/DCS has been completed, and the optimal control and the advanced control have been realized. The development and spread to the much wider field is anticipated. The soft structure system is needed for equipment improvement in view of the life cycle of equipment and toward the elimination of bottlenecking. For the design of the control system, commercial tools began to be much used, and it is expected in future to accumulate and recycle the knowledge/knowhow for effective design work. Further, strict simulation models based material balance and heat balance have also been on the rise, and the advance in technology is expected. Because of the total productivity of the production equipment, the control technology is anticipated not only for the pursuit of controllability but for the use as supporting technology in the operation/driving/failure diagnosis for working out, carrying out and evaluating the optimum operation plan. 18 refs., 99 figs., 100 tabs.

  11. Effective utilization technology of carbon dioxide. CO sub 2 no yuko riyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Ibusuki, T. (National Research Inst. for pollution and Resources, Tsukuba (Japan))

    1991-03-12

    As carbon dioxide-related environmental measures, method was explained to chemically convert and utilize carbon dioxide. Synthesis is possible of methanol, carbon monoxide, different carbohydrates, etc. by catalytic hydrogenation of carbon dioxide, using hydrogen produced by the electrolysis of water. Task consists of heightening in both convertibility and selectivity, and abundant supply of low cost hydrogen. Methane, alcohol, etc. can be synthesized by electrochemical reducion of carbon dioxide. Because of effectively inserting multiple electron, discssion is being made of catalyst, intergrated with electrode, and electron transmitter. The photoelectrochemical reduction of carbon dioxide can be also made by utilizing photoelectric current, generated upon photoradiation on the semiconductive electrode. However, task consists of heightening in both efficiency and selectivity. Photochemical reduction of carbon dioxide, actually made by green plant, consists of oxidationlike decomposition of water and reduction of carbon dioxide. Both those reactions are skillfully separated by intermediation of very quick electron transmission system. Reduction is being studied with semiconductor, metallic colloid, enzyme, metallic complex and other various catalysts. 10 refs., 3 figs., 4 tabs.

  12. Fiscal 1999 research report on long-term energy technology strategy. Basic research on industrial technology strategy (Individual technology strategy (Textile technology field)); 1999 nendo choki energy gijutsu senryku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (sen'i gijutsu bun'ya))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 basic research result on industrial technology strategy of a textile technology field. Social demand and constraint in the 21st century restrict human life and industrial activity, however, include huge business chances. This technology strategy aims at construction of textile business contributing to the society, and improvement of the international competitiveness of Japanese textile industry. Analysis was made on the current international competitiveness of the textile industry in comparison between Japanese and American productivity. As factors hindering technological innovation, the following were pointed out: poor cooperation among industry, academia and government, poor cooperation among different kinds of industries, poor preparation of basic technology, knowledge base and creation base, and poor deregulation. As the future target and strategy, 7 technology targets, 2 creation targets, and every target year were showed. 4 proposals were also showed as follows: preparation of a technology base, creation base, talent education and knowledge base, and protection of intellectual property rights. (NEDO)

  13. Investigation on food sanitation controlling technologies; Shokuhin eisei kanri gijutsu ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    Doi, Y [Hokkaido Electric Power Co. Inc., Sapporo (Japan); Nishioka, J

    2000-03-24

    Investigation has been made on the current status of food sanitation controlling technologies. Eighty percent of food poisoning is caused by bacte such as Salmonera, enteritis vibrio, staphylococcus, and pathogenic colibacillus. Putrefaction as the cause for food poisoning occurs from proliferation of different microorganisms. Heating sterilization is the main method being performed, but non-heating method may include sterilization by flash and high voltage pulse discharge in addition to ultra-high pressure and ultraviolet ray sterilization. As a result of the questionnaire survey, what is extracted as the problems in the food sanitation controlling technologies is to establish a rinsing and sterilizing method with large sterilization effect, an effective sterilizing method and thawing of processed marine products, and a cooling method in food processing. Increasingly demanded for the future is to develop a foodstuff sanitation control system using as the core the hazard analysis critical control point (HACCP, a quality control program developed by the U.S. NASA to ensure safety in manufacturing space food), and micro-organism control and sterilizing technologies to support the above system. The flash pulse and high-voltage pulse sterilizing technologies as the non-heating sterilizing technology are more effective than the conventional heating sterilization methods also from the aspect of quality retention after sterilization. More active development thereof is desired. (NEDO)

  14. Fiscal 1996 survey report on overseas technology concerning R and D on advanced chemical processing technology; 1996 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu kaigai gijutsu chosa hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu / sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    R and D was conducted on technologies for ultra high purity separation/processing, ultra fine particle crystal control, and high functional organic material synthesis and support. The results were classified into four categories and, on the basis of the results, the researchers paid a visit to and had a conference with related organizations overseas, for the purpose of exchanging opinions with European and American specialists and extracting evaluation and problems of the results. On laser CVD/organic thin film technology, eight institutions including University College London were visited by the researchers, with opinions exchanged on eight subjects such as studies on synthesis of high functional metallic thin film using the laser MOCVD method. On new materials/processing technology, seven institutions including MIT were visited, with opinions exchanged on the results of four researches such as preparation of Pb-based ferroelectric thin film using multi-ion-beam sputtering method. On micro-structure characterization technology, six institutions including MIT were visited, with opinions exchanged on the results of nine studies such as micro-structure characterization by transmission electron microscopy. On ion CVD/ion implantation technology, five institutions including The University of Salford were visited, with opinions exchanged on the results of seven researches such as creation and utilization of ultra-high vacuum. (NEDO)

  15. Technical issues and a prospect of ICAI. Chiteki CAI no gijutsu kadai to kongo no doko

    Energy Technology Data Exchange (ETDEWEB)

    Otsuki, S. (Kyushu Institute of Technology, Kitakyushu (Japan))

    1992-12-10

    This paper explains technical issues and a prospect for intelligent computer assisted instruction (ICAI) which combines the intelligent tutoring system (ITS) with an open-ended (discovery) type education system. The paper summarizes the ITS characterized by modelling students based on error-origin diagnostic technologies; various functions that have been realized for the first time therefrom; different methods for error diagnosis and error-origin diagnosis; and criteria to evaluate these methods (evaluating generality, coverage, and tractability). The paper indicates that no complete diagnostic methods have been obtained according to these criteria, that, therefore, an issue of incompleteness in the student model still remains, and that unsolved issues in the ITS include some that exceed the framework of the ITS. Also mentioned in the paper are that the discovery type education system has a possibility of realizing an education with new quality, and that a new attempt is being performed to merge the ITS with the discovery type education system. 17 refs., 2 figs.

  16. FY1995 generic supercritical water technology; 1995 nendo generic technology to shite no chorinkai riyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    For the establishment of the basis of supercritical fluid technology, we perform elucidation of the specific feature of the supercritical fluid as a reaction media and development of some new process. In this study, we first studied the fluid structure of SCF through in-situ spectroscopy and MD simulation. As a result, significant hydrogen bonding amongst water molecules and a solvation structure around the solute were observed in the supercritical state. This fluid structure has new features different from that of high temperature steam or liquid water. We found that this is closely related to the difference of bulk properties of SCF and local one around the solute. On the basis of these fundamental findings and with the better understanding of the specific features of SCF as a reaction media, development of some new process had been conducted more efficiently and successfully. The processes being developed in this study include 1) waste biomass and plastic conversion to recover chemicals, 2) hydrogenation of heavy oil for desulphurization through partial oxidation 1 and 3) hydrothermal synthesis of metal oxide fine particles. (NEDO)

  17. Technical features of steel structure construction by Kawasaki Steel; Kawasaki Seitetsu no kokozo gijutsu no tokucho

    Energy Technology Data Exchange (ETDEWEB)

    Kaneko, T.; Urata, I.; Okata, S. [Kawasaki Steel Corp., Tokyo (Japan)

    1996-03-01

    In the steel structure technology of Kawasaki Steel, the joint technique (e.g., welding) is added to them while developing or improving the products that meet the social needs as a material supplier. Moreover, the execution technique that manufactures materials or constructs them as an integrated structure, the structural analysis that conforms to the function and application of a structure, and the design technique on dynamic properties or durability such as earthquake resistance, fatigue, and corrosion resistance are synthetically expanded for engineering. In this paper, a building steel frame, non-residence building, bridge, and harbor structure as steel structure in the building and construction fields were described for each structure genre. The structural technology of a building steel frame is summarized to the products of pillar materials. An earthquake brace, using a dead soft steel, with high earthquake energy absorption capability and a damping wall were also developed. The design and execution technique of a large roof was systematized. The exchange technique of a road bridge RC floor and the technique of an unstiffened suspension bridge for pipeline were developed. A new technique was also developed for a suspension monorail track and offshore structure. 30 refs., 5 figs.

  18. How to proceed R and D effectively; Gijutsu kaihatsu no koritsutekina susumekata

    Energy Technology Data Exchange (ETDEWEB)

    Kawakita, Tetsuya [Ajinomoto Corp., Tokyo (Japan)

    1999-07-05

    They greatly divide R and D into next three in the enterprise, it is considered. (1) The goal-oriented basic research. (2) The applied research. (3) Technology development. Here, they try to want to consider the measure for efficient result sending out in technology development. It always considers that the largest effect is raised in research personnel who was limited in advancing technology development, it is observed in the standpoint for the operation management. The thought of Concurrent Engineering has already been taken in daily management, and it is had thing sure. In large wave of the internationalization, the high competition superiority is ensured in respect of the cost competitiveness, while the goal is clarified, and while it lectures on the means for overcoming the bottleneck. Responding to the expectation of the management by the further improvement in the technology development force believes not differing role of the engineer in the enterprise. (NEDO)

  19. Survey of technological trends in functional membrane materials; Kinosei makuzai ni kansuru gijutsu doko chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1979-03-01

    Materials for membranes with novel functions are surveyed. The survey is focused on 10 subjects, which are high-performance RO (reverse osmosis)/UF (ultrafiltration) membranes; development of an energy-efficient secondary treatment system for urban wastewater using pollution-free membranes; high-performance ion exchange membranes; artificial lung membranes; hydrogen separation membranes (hydrogen as energy); development of an energy-efficient combustion system using gas separation membranes (oxygen-enriched membranes); organic matter separation membranes; enzyme-aided chemical reaction membranes and their application; development of a distilling ship; and functional membranes making use of photosynthesis. Discussed in this connection are the outlines of the technologies, the need of their development, methods and contents of the development efforts, and the effects and impacts of their development. The survey further concerns the particulars of the trends in novel technologies about functional membrane materials development, covering gas separation and liquid separation technologies; chemical reaction membranes; and enzyme-aided chemical reaction membranes and their application systems. As for their application, the survey covers the field of application of desalinated or ultrapure water; field of application of food fermentation technologies; industrial wastewater, valuable materials recovery, and urban wastewater treatment; and application to medical systems. (NEDO)

  20. Plant growth regulation by the light of LEDs; LED ko wo tsukatta shokubutsu saibai gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Watanabe, H. [Mitsubishi Chemical Co., Tokyo (Japan). Yokohama Research Center

    1996-03-01

    Light Emitting Diode (LED) has not only an excellent display function for the luminescent device but also a superior feature without other lamps as light source for plant growth. It was National Aeronautics and Space Administration (NASA) to find out such merit for this light source for plant growth and try at first to use for plant growth at the space. They began to examine the LED application to the light source for the plant growth at the space since a stage at high cost of the LED, to develop some researches centered at cultivation of lettuce, wheat, and others. Finding out future possibility of cost-down of the LEDs on the cost/performance and large merits of the LEDs for control of the plant growth and plant physiology, authors have conducted some cultivation experiments of the plants using the LEDs for light source some years ago. In this papers, characterizations, actual possibility, and future developments of the LEDs for the light sources of the plant growth, are introduced. 5 refs., 4 figs.

  1. Comprehensive research cooperation in environmental technology in fiscal 1995; 1995 nendo kankyo gijutsu sogo kenkyu kyoryoku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Cooperative study was conducted on research subjects concerning water pollution preventive technologies in China and Thailand. In China, straw pulp mills were studied which were in the Institute of Light Industry Environmental Protection and the Environmental Engineering Course of Jinghua University. The following studies were jointly conducted: survey of the water quality pollution caused by waste water, investigational study on production technology and waste water treatment technology, extraction of technologies effective to preserve water quality, study/evaluation of economical efficiency of the said technologies, etc. In Thailand, cooperative research was conducted on automatic measuring technology for factory waste water in a model industrial estate of the Thai National Industrial Estate Corporation. Items for the study were a study on measuring technology for water quality environment, an investigation on the status of water quality environment in the model industrial estate, a study on automatic measuring technology for plant waste water, a study on how to use measuring data in the model industrial estate, etc. Every study enabled technical data accumulation at every research institute through field research exchanges. 24 refs., 91 figs., 45 tabs.

  2. Rear impact whiplash neck injury reduction technology; Jidosha komen shototsu ni okeru muchiuchisho teigen gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Watanabe, Y.; Ichikawa, H.; Kayama, O. [Nissan Motor Co. Ltd., Tokyo (Japan)

    1999-11-01

    Even though whiplash neck injuries suffered in low-speed rear impacts are one of the major concern in traffic accidents, the mechanism of the injuries is not fully understood at present. Hence, the countermeasures have not been clear, yet. The bio-mechanical research was done to understand the injuries and three different modes of occupant's motion related to the mechanism were found. Based on this research, Nissan Active Head Restraint has been developed to reduce whiplash neck injuries in low-speed rear impacts. (author)

  3. Survey of advanced composite material technology; Senshin fukugo zairyo gijutsu ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Results of functions and examples are investigated and described for more than 190 fiber reinforced composite materials. There should be a new viewpoint for even the same material when changing the point to observe it, and new industries will be expected if the viewpoint is adequate. This report has proposed a new concept of `composite functions.` The development works based on non-strength functions which will differentiate the other materials have been stressed. After describing the brief history of the advanced composite materials and significance of composite functions, the present situations and future possibilities of such functions as heat resistance, electricity-electromagnetism, chemicals-proof, adsorption, vibration-proof and resistance, tribology, erosion, sound, adaptability to living bodies and etc. have been examined based on the practical examples. As the future important subjects, adapting possibility of materials having composite functions to marine structures, and possibility of water cleaning system are described. 59 refs., 4 figs., 10 tabs.

  4. Future trend of science and technology. Kagaku gijutsu wa doko made susumu ka

    Energy Technology Data Exchange (ETDEWEB)

    Kondo, S. (Inst. for Future Techynology, Tokyo (Japan))

    1991-01-05

    The fifth survey of a large scale technology forecast which is conducted by the Science and Technology Agency (Japan) is now started. This paper gives a prospect on the megatrend of technical innovation according to the 4th. Survey conducted in 1987. Threefold viewpoints of the analysis are as follows: Type of the technical innovation (Breakthrough type and technology melting pot type). New technology and new product development (adding higher value, human friendly type). Leading technology qualitative innovation of information/electronic technology; pursuit of highly intelligent technology. (Biological technology qualitative innovation of bio-technology: pursuit of simulated organism function). The technical forecast is conducted on 17 field sectors. Examples of design-synthesis and fabrication'' technology are a technology of control based on clarification at atomic and molecular levels'', and another is design and synthesis technology of substances by means of a computer science:.'' 2 tabs.

  5. Research report of FY 1997 on the industrial science and technology development. Technology development of super-metal (technology development of nano-amorphous structural control materials); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku seika hokokusho. Super metal no gijutsu kaihatsu (nano-amorphous kozo seigyo zairyo no gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Research and development of the innovative metals have been conducted, by which the weight reduction of members can be done by drastically improving the strength compared with conventional metals. For the high-rate cluster deposition and super plastic forming technologies, research and development of aluminum-based light-weight materials have been conducted, which provides excellent strength, toughness, and super plastic formability at room temperature. For the high-density energy utilization and control technology (amorphous-A), super-metals have been investigated as high dew point and corrosion resistance materials used for waste incinerators operated under the very severe conditions. These are expected to be applied to the apparatuses and equipment due to their excellent properties. For the controlled cooling technology (amorphous-B), super-metals with excellent soft magnetic characteristics and degree of shape freedom have been investigated for high performance and high efficiency devices including electric/electronic/communication devices, power transmission devices, and various industrial devices and parts. These are expected to contribute to the creation of new markets and the improvement of international competitive force. 123 refs., 160 figs., 33 tabs.

  6. Disinfection technology with ozone for cryptosporidium; Cryptosporidium taisaku to shite no ozone shodoku gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Tanaka, Y.; Takahashi, K. [Fuji Electric Co. Ltd., Tokyo (Japan); Motoyama, N. [Fuji Electric Corporate Research and Development, Ltd., Kanagawa (Japan)

    1998-06-10

    Measures against Cryptosporidium parvum (C. parvum) in the waterworks are discussed. C. parvum is a pathogenic protozoan, and exists in the form of oocyst protected by a hard shell. It does not multiply in water or food, but does in human intestines and causes violent diarrhea and bellyache. A grave concern was created when many people were infected with the protozoan via tap water in Japan and the United States. Under such circumstances, ozone is used in an experiment to inactivate C. parvum. It is found that the C. parvum oocyst inactivation effect is evaluated by using a Ct value (disinfectant concentration Cmg/Ltimescontact time in minute) and that ozone treatment inactivates 90-99% of the protozoan. When various advanced water treatment technologies are being introduced for the purpose of serving safe and tasty water, the outcome of this study conveniently offers an ozone treatment method that will additionally inactivate pathogenic protozoa. Studies will be continued to elucidate the effects of factors of ozone treatment and water quality for the completion of an ideal disinfection process. Reference is made to an example of disinfection work implemented at a water purification plant of Milwaukie City, United States. 9 refs., 6 figs., 4 tabs.

  7. Earth-friendly refuse processing. Chikyu kankyo wo kangaeta gomi shori gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Nishigaki, M. (Takuma Co. Ltd., Osaka (Japan))

    1994-06-15

    This paper contains six articles: (1) Earth-friendly Garbage Disposal, (2) Erasable Copy Machine, (3) Making Plastics from Shell of Crustacean, (4) From Garbage into Petroleum, (5) Utilization of Sewage Sludge for a Recycle-type Society, and (6) FRP Boat Disposal Technology. All articles address the latest topics about disposal of wastes and garbage that have been attracting general attention in environmental issues. The article (1) presents the latest waste incineration technology, garbage power generation, and disposal and utilization of incineration residues. The article (2) is about a prototype of the copy paper regeneration device (toner remover) developed and produced by Ricoh Co., Ltd. The article (3) describes biodegradable plastics using chitin and chitosan that can be acquired from shell of crustacean. The article (4) describes how to extract oil or gas from plastic waste through its thermal decomposition. The article (5) presents volume reduction and utilization of sewage sludge. The article (6) presents disassembling and disposing waste plastic boats that have been rapidly increasing. 8 refs., 27 figs.

  8. Prospect of concrete technology; Kenchiku ni okeru korekarano konkurito gijutsu no tenbo

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Tadahiko [Shimizu Corp., Tokyo (Japan)

    1999-10-10

    The privatization of state-owned companies, the abolition of the protectionism to domestic industries and the market liberalization, deregulation to the economic activities or movement to abolition of regulation were concretely made a start. Moreover, the reform of the social life was also requested with an increasing of international global environmental preservation. These reform influences in the construction industry have been affected and could not ignored in consideration of the development in the 21st century. In this paper, the summary of reform in development, construction industry; especially the correspondence in the construction industry and the relation to concrete technology from now were described. Especially, concerning establishment of concrete technology, it was given as the construction of the safe and comfortable space, highly production technical development, countermeasures to resource-saving and environmental preservation, search of new concrete materials, development of the renewal technology and correspondence to large project. (NEDO)

  9. Emerging technologies for demand side management. Demand side management jitsugen no tame no saishin gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, H; Iyoda, I [Mitsubishi Electric Corp., Tokyo (Japan)

    1993-11-05

    This paper explains the latest situation in hardware technologies to realize the demand side management, divided into the following technologies: communications technology, measurement technology, client information system technology, load controlling technology, home automation technology, and energy storing and saving technologies. Speaking of the communications technology, information exchange between the supply side and the demand side is important in the demand side management, whereas a technology intended of automatic power distribution and automatic meter-reading is advancing in development. The technology covers transmissions using from power lines and telephone lines to optical cables and wireless communications. Power line communications using power transmission lines as communication lines are simple and economical, but weak against noise, and not suitable for long-distance communications. Wireless communications have been drawing attentions along with the development of mobile communication device technologies. These technologies will give benefits to electric power companies in the initial stage of their use, such as for load investigation and general automation in power distribution. They would shift to benefiting users in about 2010 covering from security information such as about power interruption to publicity information and educations. 8 refs., 8 figs., 1 tab.

  10. Fiscal 1999 research report on long-term energy technology strategy. Basic research on industrial technology strategy (Individual technology strategy). Aerospace technology field (Aircraft technology field); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (kokuki gijutsu bun'ya))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 basic research result on industrial technology strategy of an aircraft technology field. In an aircraft field, since the major theme is application of new technologies to new airframe development, with joining in international cooperative development of aircraft, Japanese initiative development of airframes based on the domestic market demands and profitability should be started as early as possible. Because there is no airframe development by only one country including U.S.A., Japan is profitable to unite with some overseas companies, and invest selectively in specific leading fields. Positive technical support to safety, reliability, comfort and environment harmony are also important. More important theme than establishment of elementary technologies is preparation of an integrated flight demonstration system to expand application chances of development results, and preparation of various test facilities for tests required during development activities. Application of information technologies to the whole aircraft industry, and organic cooperation between the private and public sectors are also important. (NEDO)

  11. Development of position measuring technology by GPS; GPS ni yoru sokui gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Ishizaki, T [Ministry of Transportation, Tokyo (Japan)

    1994-07-25

    With regard to the GPS (global positioning system) which uses the satellites launched and administered by the U.S.A. and has been utilized worldwide for ships, automobiles and geodetic surveys in recent years, Ministry of Transport started investigation and research on the application of its position measuring system from FY 1989. In this fiscal year, a study on position measuring methods and selection of the position measuring system to be developed were made, in FY 1991, the real-time functioning and track display were developed, in FY 1992, the initialization aboard the ship, the measure to prevent cycle slip, and the radio data communication technology were developed, and in FY 1993, a long term demonstration experiment presuming its practical use was conducted attaining the expected purpose. In this article, the developed real-time kinematic position measuring system is introduced. Regarding the position measuring methods by the GPS, there are the one point position measuring method and the relative position measuring method. Regarding this newly developed position measuring device, its application to work ships and structures can be considered in various ways. 4 figs.

  12. Advanced technology trend survey of micromachines in Europe; Oshu ni okeru micromachine sentan gijutsu doko chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-02-01

    In this research survey, the development trend of micromachine technology in Europe was surveyed, development level of micromachine technology of European companies was grasped, and practical application fields of their target were investigated. Technology development level of private companies in Japan`s national projects and practical application fields of Japan`s target were arranged. Trends of micromachine technology development are compared between Japanese companies and European companies. Among micromachine technology development projects in Europe, ``8520 MUST`` is a part of the ESPRIT Project. About 40,000 companies among about 170,000 companies in whole Europe are relating to the MUST Project. The main fields include the manufacturing technology, process control of machines, technology of safety, sensor technology in environmental fields, and automotive technology. The marketing fields of application include the automobile, military technology, home automation, industrial process, medical technology, environmental technology, and games. The results can be compared with the direction of research and development in Japan. 22 figs., 8 tabs.

  13. Present status and prospect of the pneumatics; Kukiatsu gijutsu no ayumi to kongono kenkyu no kadai

    Energy Technology Data Exchange (ETDEWEB)

    Kawai, S. [Waseda University, Tokyo (Japan). School of Science and Engineering

    2000-05-15

    This paper describes course of pneumatic technologies and problems in future researches. Pneumatic systems are inferior to electric and hydraulic systems in terms of efficiency. It is because electric power is converted into fluidized energy by using a compressor, and then converted to mechanical energy by using an actuator. When theses published from 1990 through 1999 are put in order, the research objects are accounted for half by control related technologies, and researches related to elements account for only one third. This paper enumerates assignments to be tackled positively in the future by utilizing compressibility of air in pneumatic systems, and features of high speed drive utilizing the stored energy instantaneously. Application of air pressure to robotics from the demand of the aging society, and pneumatic tools having intelligent functions must be subjected to new contrivances. These will serve for work assistance systems to enable aged people to perform works, and for activating industries including organic agriculture. Tools in this sense may include impact wrench, and others. Furthermore, development of fundamental studies for 'why air pressure?' is demanded strongly, including the viewpoint of LCA in the recycling type society. (NEDO)

  14. Fiscal 1999 research report. Research on the long-term energy technology strategy (Basic research on the industrial technology strategy (Material technology field)); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (zairyo gijutsu bun'ya))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This research clarifies the future social issues and targets of industrial technology in a material field including metal, inorganic, organic, polymer and fiber materials, and proposes the strategy for achieving such targets, based on research on changes in science and technology trend (technical innovation), and analysis on present and future industrial and technical competition powers. The future basic technologies for enhancing such competition powers are as follows: (1) Resource/energy-saving production process, (2) Design/evaluation technology for fine textures or in an atomic level, (3) Divergence toward high-purity and composite materials, (4) Improvement of a functionality, (5) Improvement of surface treatment technologies, and (6) Development of new materials and production technologies by using computer. The following 5 strategies are proposed based on the common understanding that the Japanese material industry achieves the best material technology innovation in the world by 2010: (1) Material technology strategy, (2) Strong cooperation among the industry, university and government, (3) Preparation of an intellectual base and a standardization strategy, (4) Reform of intellectual property rights, and (5) Resource strategy. (NEDO)

  15. Fiscal 1996 survey report on overseas technology concerning R and D on advanced chemical processing technology; 1996 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu kaigai gijutsu chosa hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu / sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    R and D was conducted on technologies for ultra high purity separation/processing, ultra fine particle crystal control, and high functional organic material synthesis and support. The results were classified into four categories and, on the basis of the results, the researchers paid a visit to and had a conference with related organizations overseas, for the purpose of exchanging opinions with European and American specialists and extracting evaluation and problems of the results. On laser CVD/organic thin film technology, eight institutions including University College London were visited by the researchers, with opinions exchanged on eight subjects such as studies on synthesis of high functional metallic thin film using the laser MOCVD method. On new materials/processing technology, seven institutions including MIT were visited, with opinions exchanged on the results of four researches such as preparation of Pb-based ferroelectric thin film using multi-ion-beam sputtering method. On micro-structure characterization technology, six institutions including MIT were visited, with opinions exchanged on the results of nine studies such as micro-structure characterization by transmission electron microscopy. On ion CVD/ion implantation technology, five institutions including The University of Salford were visited, with opinions exchanged on the results of seven researches such as creation and utilization of ultra-high vacuum. (NEDO)

  16. Manufacturing technology for advanced jet engines; Jisedai jetto engine no seizo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Hirakawa, H [Kawasaki Heavy Industries Ltd., Kobe (Japan)

    1997-04-05

    A part of the latest production technologies for aircraft jet engines is introduced. Outline of the turbofan engine, turbo-prop engine, and turbo-shaft engine are given. Every one of them employs a gas turbine engine comprising a compressor, combustor, and a turbine as the output generator. Increase in the turbine inlet temperature is effective for making the gas turbine engine more efficient. The development tread of heat resisting materials for realizing higher temperature is shown. The current status and future aspect of the manufacturing technology is discussed for each main component of the engine. Technological development for decreasing weight is important because the weight of the fan member increases when the fan diameter is increased to increase the bypass ratio. FRP is adopted for the blades and casing to decrease the weight of the compressor, and studies have been made on fiber reinforced materials to reduce the weight of the disks. The outlines of the latest manufacturing technologies for the combustor and turbine are introduced. 2 refs., 9 figs.

  17. Survey on development of brown coal liquefaction techniques; Kattan ekika gijutsu ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-09-01

    Described herein are results of literature survey on brown coal liquefaction reactions and elementary techniques. Liquefaction of brown coal in the presence of CO and steam, or CO, H{sub 2} and steam has been investigated. It is not clear by the literature survey whether it is superior to the normal process which uses hydrogen. Brown coal contains moisture at high contents, and the drying techniques are necessary to be developed for its liquefaction. The future coal liquefaction plant will be much larger than the past one, and there are a number of problems to be solved, such as those involved in the designs of large-sized high-pressure slurry pumps, heat exchangers and preheaters. It is also necessary to develop the materials of and production techniques for large reactors which are serviceable under severe conditions. The solid-liquid separation for liquefaction products involves a number of the elementary techniques characteristic of coal liquefaction processes, and needs many technological developments. The one-stage brown coal liquefaction process is compared with the two-stage process for the secondary hydrogenation of SCR, but no clear conclusions are reached. (NEDO)

  18. Investigations on an environmental technology transfer information network; Kankyo gijutsu iten joho network chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    With developing countries (APEC countries) as the main objects, investigations were carried out to issue environmental technology transfer information that Japan has accumulated, and advance exchanges of technical information with persons related inside and outside Japan. As a result of the investigations, it was found that the environmental technology information that serves more effectively for the developing countries is the technical information that has been developed by repeating improvements, has provided actual results in work sites, and is actually used, rather than the state-of-art technologies. Based on this result, business entities having factories and operation centers located in Mie Prefecture and the city of Yokkaichi were asked to provide data for the actually used environmental technologies. Out of 51 items provided by 17 companies, nine items were selected to be used as prototype database materials for an information network. The objects of information sources will be expanded to a nationwide scale in the future to improve the contents of the database. Problems of handling information copyrights and technical know-hows were presented in the course of data collection, urging the necessity of due considerations on the matter. Necessity was indicated on maintenance and management of data base as well as its quantitative expansion. 1 ref., 4 figs.

  19. FY 2000 report on the survey on the long-term energy technology strategy. Fundamental survey to work out industrial technology strategies (technology strategy by field - material technology field); 2000 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (zairyo gijutsu bun'ya))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the purpose of constructing the material technology strategy, conducted were study of the trend of technical development, arrangement of material technology seeds, and survey of the R and D environment. Concretely, the paper carried out the grasp of the national projects related to materials in Europe and the U.S., patent registration (U.S.-Japan comparison)/application (Europe/Japan), transfer of technology trade, and survey of the trend of papers made public in scientific magazines. Further, in the survey of the R and D environment, conducted were how to treat researchers/engineers, how to handle intellectual ownership, system to promote the cooperation among industry/university/government, and comparison among countries in policies of technology such as patent strategy. The results of the survey were classified into the following 4 items: 1) trend of the technical development in the material technology field; 2) developmental environment in the material technology field; 3) competitive force in the material field and material user needs/seeds maps; 4) proposal for the material technology strategy. As to the competitive force of material technology in 3), the paper took up organic/polymer, iron/steel, aluminum, semiconductor, and ceramic materials. (NEDO)

  20. Survey of the development of industrial technology in Japan; Sangyo gijutsu rekishi keisho chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Conditions for creating Japan`s type technologies have been investigated by extracting technologies and experiences meriting the succession to the next generation among the industrial technologies in Japan after World War II. Technological creativity of Japan began to appear from the 1970`s. Quartz watch of SEIKO, U-Matic VTR of SONY, ladle refinery method of DAIDO Steel, PAN-based carbon fiber of TORAY, continuous annealing of Nippon Steel, calculating machine using liquid crystal of SHARP, ASA-400 high sensitivity film of FUJI FILM, and Japanese word-processor of TOSHIBA are the examples. The basic ability to create those products and technology lays in the diversity of firms in electronic device and fine machinery industries consisting the boundary between general and electrical machinery, the systematizing ability and inter-industrial cooperation which were promoted through quality control, automatization of assembly and production control by computer, and the research and development capability which has been brought up during the high economic growth as a learning process of technology. The society and industries have to make efforts to create the new creative conditions for younger generations. Otherwise, Japan`s technology will not develop. 134 refs., 19 figs., 8 tabs.

  1. Laser materials processing as manufacturing technology; Seisan gijutsu to shite no laser kako

    Energy Technology Data Exchange (ETDEWEB)

    Miyamoto, I. [Osaka University, Osaka (Japan)

    1998-11-01

    This paper describes the laser material processing. Laser is artificial light that uses the amplification based on the induced emission of light. It is very excellent in directivity and monochromaticity. The high power density and concentration characteristics of laser enable a variety of high-performance processing such as junction, removal, reforming, and addition. Excellent controllability (that facilitates the automated processing), transmission performance (the processing by energy transmission in long range space is most suitable for laser), and non-contact processing (that contains no wearing, noise, and contamination) are great advantages that the existing processing method does not have. In the wide wavelength area between ultraviolet and infrared areas, the laser that can be used for material processing is very wide over the range of the continuous oscillation to the ultra short pulse of a nanosecond order. The thermal processing accompanied by melting and evaporation as well as the non-thermal processing (quantum processing) by a photochemical reaction is also available as the type of processing. The processing used for manufacturing technology is almost thermal processing including removal, junction, reforming, and addition. The thermal processing covers the range of electronics to heavy industry. 29 refs., 12 figs., 2 tabs.

  2. Information communications technologies that surpass the global communications network. Sekai tsushinmo o koeru joho tsushin gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    1990-05-01

    Development of information communications technologies that surpass the global communications network is being pushed forward in order to establish the global village that McLuhan foretold in 1964. Effects of hybrid intensification with the intensification of communications technologies and computer technologies have become evident as facsimiles, automated teller machines of banks, home videos, automatic response telephones with synthetic voices, compact disks, portable telephones, video games and high-definition televisions were developed and put to use in a wide range. Intensification and integration of computer technologies and communications technologies has every possibility, but it also has a peculiar aspect of lacking guiding principles. Uncertain factors of the values of informations in the market are ever increasing, and their true values are yet to be found. Anyhow, it is a long way to the goal of the global village.

  3. Development of automatic high-concentration boron measurement technique; Konodo hoso jido sokutei gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Maeda, T.; Honda, S.; Ito, A. [Kyushu Electric Power Co. Inc., Fukuoka (Japan)

    1997-03-01

    The technology that can automatically measure the boron concentration in boric acid water was developed. A high-concentration boric acid solution must be held at a high temperature to prevent the deposition. Skill and precision ({plus_minus}0.2 to 0.3% for 10 to 2500 ppm as boron concentration, and {plus_minus}2 to 3% for 2500 to 25,000 ppm) are required to analyze the boric acid solution manually. In theory, the boron concentration in a wide range can be measured, and boron has a constant-temperature function. A density hydrometer method that facilitates the treatment and calibration in high precision and at low cost was chosen. The vibration period generated when vibration is given to the solution specimen put in a U-tube is higher as the density is lower. On the basis of this theory, the density of a specimen can be obtained according to the relation with the same data of the known-concentration boric acid water. The high-concentration boric acid water that cannot be measured by the existing boron densitometer can be measured directly. It can also be measured in a low-concentration area. The technique can be used in a laboratory as the simplified method that is replaced by the current manual analysis. The reduction effect of analytical chemical`s waste liquid can also be expected. In the electric power industry, automated equipment is required for high efficiency and labor saving. 13 figs., 3 tabs.

  4. Development of advanced coal cleaning process; Kodo sekitan kaishitsu gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Osaka, S [Center for Coal Utilization, Japan, Tokyo (Japan); Akimoto, A; Yamashita, T [Idemitsu Kosan Co. Ltd., Tokyo (Japan)

    1996-09-01

    This paper aims to develop a clean coal production process which excellently removes environmental pollutant, is low-costed, and need no particular systems for distribution of products. The result of the development was described paying attention to column flotation which is a technology to high-efficiently select particulate regions, particulate heavy media cyclone, magnetic separation, and the basic design of the process into which those above were integrated. The two-stage selection process, which is an integration of column flotation and particulate heavy media cyclone into the conventional coal preparation equipment, can produce low-ash clean coal at high separation efficiency and also suppress the rise in processing cost. This process was also effective for removal of sulfur content and trace metal elements. The use of clean coal at power plant can be effective for not only the reduction in ash treatment amount, but the aspect of boiler operation characteristics such as heat transfer efficiency of boiler furnace wall, ash related troubles, loads of electrostatic precipitator, loads of flue gas desulfurization facilities. 17 figs., 5 tabs.

  5. Study of the O2/CO2 combustion technology; Sanso nensho gijutsu ni kakawaru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Kato, M [Center for Coal Utilization, Japan, Tokyo (Japan); Kiga, T; Yamada, T [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan); Arai, K [Nippon Sanso K.K., Tokyo (Japan); Mori, T [Inst. of Research and Innovation, Tokyo (Japan); Kimura, N; Okawa, M [Electric Power Development Co. Ltd., Tokyo (Japan)

    1996-09-01

    This study is being progressed during a period from 1992 to 1999 as part of the NEDO`s clean coal technology program. This paper describes what has been discussed to date. The absorption method and the adsorption method may be used to recover CO2 as means to deal with the problem of global warming resulted from burning coals. These methods, however, have problems in economy caused from concentration of CO2 in flue gas being low. The present study is intended to raise the CO2 concentration in flue gas by using oxygen plus circulated flue gas in the place of combustion air, so that CO2 may be recovered as it is without being separated from the flue gas. Therefore, an oxygen-blown pulverized coal fired power generation plant having a cryogenic oxygen manufacturing equipment was designed to discuss the plant operability and economy, and the pulverized coal combustion technology by using a dynamic simulation. A large number of findings have been obtained already, and the study has reached a level at which grasping the whole image is now possible. 13 figs.

  6. 6th Conference on Coal Utilization Technology; Dai 6 kai sekitan riyo gijutsu kaigi koenshu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-09-01

    The paper compiled the papers presented in the 6th Conference on Coal Utilization Technology held in September 1996. With relation to the fluidized bed boiler, reported were Field operation test of Wakamatsu PFBC combined cycle power plant and Development of pressurized internally circulating fluidized bed combustion technology. Regarding the coal reformation, Development of advanced coal cleaning process, Coal preparation and coal cleaning in the dry process, etc. Concerning the combustion technology, Study of the O2/CO2 combustion technology, Development of pressurized coal partial combustor, etc. About the CWM, Development of low rank coals upgrading and their CWM producing technology, Technique of CWM distribution system, etc. Relating to the coal ash, Engineering characteristics of the improved soil by deep mixing method using coal ash, Employment of fluidized bed ash as a basecourse material, On-site verification trials using fly ash for reclamation behind bulkheads, Water permeabilities of pulverized fuel ash, Separation of unburned carbon from coal fly ash through froth flotation, Practical use technology of coal ash (POZ-O-TEC), etc

  7. Development of pressurized coal partial combustor; Kaatsu sekitan bubun nenshoro gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Watanabe, T [Center for Coal Utilization, Japan, Tokyo (Japan); Kawamura, K [Kawasaki Heavy Industries, Ltd., Kobe (Japan); Tanaka, T [Chubu Electric Power Co. Inc., Nagoya (Japan); Muramatsu, T [Electric Power Development Co. Ltd., Tokyo (Japan)

    1996-09-01

    The coal partial combustor (CPC) uses a combustion technology with which coal is burned at elevated temperatures and under revolution, the constituents are captured on the furnace wall and removed as molten slag from the furnace. This is a combustion technology to reduce load of ash on subsequent devices. To generate a molten condition, it is necessary to raise the combustion temperature as high as possible (to about 1600 degC in the furnace), but this is effective for a gas turbine composite power generation system. An efficiency of higher than 45% may be expected at the power transmission terminal. As an operation on subsidy from the Agency of Natural Resources and Energy, the normal-pressure CPC technology has already been established, and a research on pressurized CPC is being progressed since fiscal 1991. The research is in progress with a schedule that elemental tests for 7 tons per day production are conducted until fiscal 1995, a 25 tons per day pilot plant will be completed by November 1997, and verification tests for long-term continuous operation will be implemented until 1998. The 7 tons per day elemental tests have identified gasification performance and slag extraction performance using five types of coal having different properties. 7 refs., 10 figs., 4 tabs.

  8. Fiscal 1995 report. Liquefaction key technology subcommittee; 1995 nendo ekika kiban gijutsu bukai hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    The subcommittee held the 1st meeting in September 1955 and the 2nd in March 1996, when fiscal 1995 research plans and research results were introduced and deliberated. In the study for designing a high-dispersion catalyst and the elucidation of the mechanism of activity expression, catalysts of highly dispersed iron supported on the brown coal surface in various ways were compared with each other in terms of liquefaction activity. Furthermore, geometric changes in the iron catalyst during the sulfurizing process were examined using the XRD (X-ray diffraction) and TEM (transient electromagnetic) methods. An improved catalyst was found to achieve a liquefaction yield near the Yallourn coal liquefaction limit in a high boiling solvent system. Concerning the study of coal oil product applications and refining technologies, reports were delivered on research results relating to the problem of blocking to occur during naphtha fraction refining and measures therefor, inhibition of active metal geometric changes during reaction, methods for separating hetero-compounds from coal oil and application thereof, and so forth. (NEDO)

  9. AI technology and automobile. ; Toward vehicle autonomy. AI gijutsu to jidosha. ; Sharyo no jiritsuka ni mukatte

    Energy Technology Data Exchange (ETDEWEB)

    Okuno, A. (Mazda Motor Corp., Hiroshima (Japan))

    1991-01-01

    This report describes the vehicle autonomy by using artificial intelligence (AI) technology. Owing to a remarkable progress of AI technology, it is forecasted that driving support system will be introduced into the market till 2000, and higher autonomous navigation system will be introduced since about 2010. Autonomous vehicles have capacities of recognizing the outside world and of navigating roads by themselves, and with their enfanced environment adaptability the road transportation in the future is expected to be much more safer than in the present. The autonomous vehicle can warn its driver of potential dangers and correct operational errors of the driver. In order to realize such autonomous vehicles, extensive researches on perception systems, decision making systems and driving support systems are needed. 9 refs., 10 figs., 1 tab.

  10. Fiscal 1997 report on the R and D result of industrial science and technology. R and D on super metal (R and D on innovative raw metal materials); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku seika hokokusho. Super metal no gijutsu kaihatsu (kakushinteki kinzoku sokei zairyo no gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Study was made on the applicability of mechanical milling (MM) and mechanical alloying (MA) to Fe system alloys. Metastable austenitic stainless steels such as SUS316L and SUS304L form {alpha} phases by strain induced transformation due to MM, and are subjected to further plastic deformation. Nano-size fine structure was obtained through inverse transformation into austenite({gamma}) by heat treatment or high-temperature sintering of MM powder. Fine microduplex structure of 620nm in average crystal grain size was obtained for SUS316L. This material showed nearly 3.3 times higher 0.2% tensile proof stress, nearly 1.8 times higher tensile strength, and 35% higher elongation than conventional ingot steels. Solid solution powder of 12Cr-Mo-W ferritic steel was sintered by hot isostatic pressing (HIP) under low- temperature and ultrahigh-pressure conditions of 650degC and 588MPa. The as-HIP`ed sample and sample annealed at 800degC showed average {alpha} grain sizes of 33 and 50nm, respectively, and a strength twice as high as that of 12Cr steel. 97 refs., 60 figs., 18 tabs.

  11. Domestic and overseas situations of Japanese automobile industries; Jidosha gijutsu. Jidosha wo torimaku shojosei

    Energy Technology Data Exchange (ETDEWEB)

    Kawahara, H. [Nissan Motor Co. Ltd., Tokyo (Japan)

    1998-08-01

    The economic circumstances in 1997 are characterized by a high rule in the United States, slow developmental trend in Europe and lagging situations in Asia. The political and economic situations of main counties in the world are summarized with indication of Japanese dull activities, financial crisis and their countermeasures as well as the trade friction in 1998. The number of cars sold in Japan decreased to 3.71 millions in 1997 from 4.55 millions of 1996, while cars imported amounted to 360,000 in 1997 (-14.7% compared to that of the preceding year), the number of exported cars were 4.55 millions as compared to 3.71 millions in the preceding year, namely about 23% increase, of which 1.41 millions for North America and 1.25 millions for Europe. Other evolutional facts are also presented zone by zone. Then, questions which the Japanese automobile industries are faced to are enumerated and explained. The overseas production bases and their activity trends are mentioned, focusing on the modular production system as well as the lean production system as for the international expansion of the products, whereas market strategies with direct injection engine, low emission, hybrid car and so on are described in terms of technical development. Lastly, and innovation of physical distribution tat takes place in the United States such as a movement to a larger scale dealer system, car dealing business through internet and so forth are mentioned including the Japanese trials in line with these matters forecasting an ever-intensive concurrent. 5 refs., 5 tabs.

  12. International Symposium for the Promotion of APEC Environmental Technology Exchange; APEC kankyo gijutsu koryu sokushin symposium

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-11-11

    The International Symposium for the Promotion of APEC Environmental Technology Exchange was held under the theme `The function and role expected of the APEC Virtual Center,` with the objectives of clarifying the need for future intra-regional environmental technological exchange, defining the types of information and personnel exchange, and promoting the use of interactive character of the APEC Virtual Center for Environmental Technology Exchange by encouraging access to and participation in the Virtual Center project. It was held in the period of 11th and 12th, November in 1996, at the venue of Rinku International Convention Center in Osaka. The symposium was attended by 477 persons from nine countries, i.e., Australia, Canada, China, Indonesia, Korea, Philippines, Thailand, the US, and Japan, comprising staff members of intra-regional environment-related organizations. After the keynote speech, `Current status and tasks of environmental technology exchange`, and `Expected roles of the Virtual Center for Environmental Technology Exchange` were discussed. During the plenary session, the chairman summarized the symposium. This summary was carried on the Virtual Center homepage of the Internet

  13. Fiscal 1994 report. Liquefaction key technology subcommittee; 1994 nendo ekika kiban gijutsu bukai hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    The subcommittee held the 1st meeting in August 1994 and the 2nd in March 1995, when preceding fiscal year's research results, fiscal 1994 research plans, fiscal 1994 research results, etc., were introduced, and deliberated. In the study of hydrorefining of naphtha, kerosene, and light oil fractions, a nitrogen concentration level of not more than 5 ppm was achieved by refining oils from Indonesian coal. Studies were also made about the two-step hydrorefining system, the relationship between the coal oil refining level and sludge formation, etc. In the research for the development of novel catalysts for upgrading coal oil, the active life of a nickel-supporting catalyst for hydrogenation at the 1st step was somewhat prolonged with an increase in the amount of nickel. In the study of coal liquefaction conditions, an AWIP method was deliberated, wherein liquefaction process waste water was utilized as one of catalytic component adjusting materials. For upgrading liquefaction key technologies, studies were made for catalyst improvement and pretreatment method development, and about the behavior of liquefaction reaction in a high boiling solvent-aided process. (NEDO)

  14. Expectation of rapid prototyping; Rapiddo/puroto taipingu gijutsu no tenbo

    Energy Technology Data Exchange (ETDEWEB)

    Kishinami, T. [Hokkaido Univ., Sapporo (Japan). Faculty of Engineering

    1997-04-05

    Prototyping can be defined as the physical and imaginable product model formation process used for verification of production guideline of functional component. Rapid prototyping means the combination of technology forming directly the physical model from CAD data. It is a summarization of technology composed of design assistant technology, model production technology, and integration technology. In 1980`s, 3D System Corp. proposed the stereo lithography. Since then its research and development were promptly carried out as for the technology of rapid formation o physical model. Resultantly, it became possible to fabricate the model designed by the three dimensional CAD within a day using a rapid prototyping system. This can be roughly divided into the following three: (1) stereo lithography, (2) method of melting and hardening by laser irradiation of the powder plastic and wax, (3) 3D-printing method consisting of selectively coating of ceramic powder with binder. 4 refs., 3 figs.

  15. Alternative disinfection technology for water purification systems; Josui shori ni okeru enso daitai shodoku gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Aizawa, T. [The Institute of Public Health, Tokyo (Japan)

    1998-09-10

    This paper describes chlorination substituting disinfection technologies used in water purification systems. Chloramine treatment is regarded as effective in reducing trihalomethane (THM). Chlorine is injected in the initial stage in the form of free chlorine to disinfect pathogenic microorganisms in a short time, which is then added with ammonia to convert it into chloramine for further utilization. Chlorine dioxide has not been used in Japan, but introduced in Europe and America to treat THM. Ozone has the strongest oxidizing power, and is used for disinfection, virus inactivation, decomposition of THM precursors, and removal of fungus odor. The ozone treatment will produce aldehyde if an organic matter is present, but aldehyde can be removed by treatment using organismic activated carbon. Ultraviolet ray treatment has an advantage of being difficult of producing byproducts. This system was experimentally compared with free chlorine treatment on disinfection effect, mutagenicity, suppression of producing THM byproducts, and odor removal. In order to assure reliability of microorganismic and chemical safety in tap water supply systems, assurance by considering the entire system is important, not only by operating the disinfection units, but also combining such physical water purifying technologies as coagulation, sedimentation, filtration, and membrane treatment. The use of chlorine substituting disinfectants is also a part of the conception. 6 refs., 8 figs., 5 tabs.

  16. CMOS analog integrated circuit design technology; CMOS anarogu IC sekkei gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Fujimoto, H.; Fujisawa, A. [Fuji Electric Co. Ltd., Tokyo (Japan)

    2000-08-10

    In the field of the LSI (large scale integrated circuit) in rapid progress toward high integration and advanced functions, CAD (computer-aided design) technology has become indispensable to LSI development within a short period. Fuji Electric has developed design technologies and automatic design system to develop high-quality analog ICs (integrated circuits), including power supply ICs. within a short period. This paper describes CMOS (complementary metal-oxide semiconductor) analog macro cell, circuit simulation, automatic routing, and backannotation technologies. (author)

  17. Noise and vibration improvement technologies for engines; Engine ni okeru soon shindo kaizen gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Kuzuoka, H.; Maeda, R. [Nissan Motor Co. Ltd., Tokyo (Japan)

    1999-02-01

    This is an outline of recent measurement and simulation technology for reduction of engine noise and vibration. We can recognize correct phenomenon by visualization of noise and vibration phenomena using new measurement technology. And we can create optimum countermeasures using new simulation technology In this report, examples of application of these technology in the development of NEO-DI engines are provided. (author)

  18. Process improvement technology for petrochemical plant; Sekiyu kagaku puranto ni okesu purosesu kaizen gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Yamada, Shin

    1999-05-05

    Before, GTC technology Co. was a manufacturer of the tray as a Greenwich technology. It is the subsidiary, which undertakes technology and licence of the engineering firm in U.S.A. at present. It carries out besides the technology licence support in the startup for the prolonged driving of technical service, operating condition of the plant of improvement and optimization and, etc. Has made separation and purification technology, which made extractive distillation to be a beginning good and has the process improvement technology to the PTA (high-pure terephthalic acid) from BTX (benzene toluene xylene) of petrochemical plant. (NEDO)

  19. Fiscal 1999 research report on long-term energy technology strategy. Basic research on industrial technology strategy (Individual technology strategy). Iron and steel technology field; 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku) (tekko gijutsu bun'ya)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 basic research result on industrial technology strategy of a steel technology field. Japanese steel industry should correspond to requirements of the international economic society as the top runner. Although it is now difficult to suppose a basic technology innovation, stable supply of basic materials is necessary for peripheral industries. The basic raw material technology is the basis of domestic and overseas socio- economic activities. The technology development support system to retain the world-wide leadership of Japanese industries is a strategic issue. Preparation of cooperative R and D bases of industry, academia and government along a national policy is important. Strong promotion of such national projects is also essential as global environment problem, positive use of advanced information tools, development of technologies and products of unexplored fields, and development of new products and demand creation according to social needs. Such measures along social requirements are also important as raw material development to double an energy efficiency, and the policy and system to construct a recycling society and living spaces. (NEDO)

  20. Visualization techniques in diesel engine research. Diesel Engine kenkyu ni okeru kashika gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Komori, M.; Tsujimura, K. (New ACE., Tsukuba (Japan))

    1993-04-01

    In order to grasp the phenomena actually occurring in the combustion chamber for improving the combustion and for reducing the exhaust gas emission of the diesel engines, the visualization techniques are becoming to be essential and indispensable. The authors have observed the spray and combustion, when proceeding the combustion improvement by the high pressure injection, and then have performed the image processing and simulation calculation based on them. The high pressure injection devices used for the experiment are the intensifier type and accumulator type which can generate the injection pressure more than 200MPa, and both of them are the electronic controlled hydraulic drive type, and are driven separately from the engine. Since it was found that the analysis of high pressure injection by the hologram is limited in the conditions, as for the spray, the spray analysis was performed by the transmitted light attenuation method and laser sheet method. As for the combustion, the engine for observing the combustion was trially made, and then the combustion state was observed by the high speed photograph. Furthermore, the flame temperature analysis by the image processing using the combustion photograph and the analysis of flow and turbulence of the flame were carried out. 9 refs., 16 figs.

  1. Demonstration technology development of new hydrogen energy; Shinsuiso energy jissho gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    A phenomenon of excess heat generation through the electrolysis of heavy water using palladium metals as electrode can be recognized as new hydrogen energy. Its mechanism has been investigated for four years since FY 1993. In FY 1993, the New Hydrogen Energy Demonstration Research Center and the New Hydrogen Energy Demonstration Laboratory were organized, and the research was initiated. For the excess heat generation demonstration model tests, two types of electrolysis experimental units were constructed, and the Pd/D-based electrolysis experiments were initiated. For the measurements of excess heat using an open type electrolysis cell, there were rather large errors ranging from -13% to +7%. It is necessary to improve the accuracy. For the measurements using a fuel cell type electrolysis cell, generation of the excess heat ranging from 0% to 6% was observed. For the validity of this, it is required to confirm the long-term stability of calibration and cell components. For the correlation between the increase in absorbing rate and the generation of excess heat, results of 2 to 3% lower were obtained. 28 refs., 89 figs., 26 tabs.

  2. Fiscal 1997 R and D project on industrial science and technology under a consignment from NEDO. R and D of the ultimate manipulation technology of atoms and molecules; 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo gijutsu Sogo Kaihatsu Kiko itaku. Genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho (genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper describes R and D of the ultimate manipulation technology of atoms and molecules (atom technology). The R and D aims at establishment of observation/manipulation technology of atoms and molecules as common basic technology in various industrial fields such as new material, electronics, bio-technology and chemistry. The R and D thus aims at establishment of observation/manipulation of solid surfaces and DNA organic molecules, formation of fine structures of atomic surface arrangement, and calculation/ simulation for predicting a reaction theorem of atom and molecule surfaces. In fiscal 1997, research was made on improvement and development of computer simulation environment, and description of an excited state of electrons by Green function. Establishment of a construction method and computation code is under investigation for pseudo- potential dependent on excitation energy. Survey was made on research trends of the atom technology by visiting overseas academic societies and institutions. International Symposium on Atom Technology was also held in Tokyo in Nov. 1997

  3. Investigation into the situation of technology succession; Gijutsu keisho jokyo chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    The paper made a fundamental investigation to promote historical succession and creative use of the industrial scientific technology. As for the wind power generation, the large-scaling became centralized wind power plants, and the downsizing became the distribution to remote areas. The solar power generation shifted from the thermal power generation to the light power generation. There is also a method to use solar heat directly. As to power systems and the distribution of electric power, the subjects are a combination of energy source, geographical energy transportation, and heightening of consumption efficiency. It was indicated that the subjects changed with a lapse of time under technical/social/systematical conditions, and under the developable energy amount prescribed by those conditions. Heightening of efficiency, which can be realized even by a paper simulation, was realized partly helped by the developing measuring technology. The environmental problem becomes historically severe as a condition of the technical development. However, aimed at was the process where discharged matters and by-products are effectively used and disused matters are not produced. In the coal-thermal power generation, for example, a load of flue gas purification was reduced by the conversion to LNG. 253 refs., 65 figs., 12 tabs.

  4. Development of application technology of ultrasonic wave sensor; Choonpa sensor oyo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Hosoya, H; Hikita, N; Sasaki, H; Kore, H [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    We have developed parking assist system, which informs a driver the closing point and distance to the objects such as other vehicle, wall and pole around the own vehicle at parking area and makes parking maneuverability easy. This system is based on the range detection technology using ultrasonic wave sensor. We have improved the detecting ability in short range of about 20cm by reducing the reverberation of transmitting wave signal and controlling sensitivities of signal intensity and threshold line. We will show mainly the improvement of short range detection of ultrasonic wave sensor, and briefly the performance of parking assist system. 1 ref., 14 figs., 1 tab.

  5. Trend of laser cutting technology; Laser setsudan gijutsu no saikin no doko

    Energy Technology Data Exchange (ETDEWEB)

    Murai, T. [Mitsubishi Electric Corp., Tokyo (Japan)

    1997-10-05

    Recent trend of CO2 laser cutting is described. The cutting speed has increased five times in these seven years, and cutting is now performed at 8m/min for a hole that satisfies a circularity of 50{mu}m. In the low-speed domain, again, cutting accuracy is as high as 20{mu}m. In the cutting of thick plates, laser encounters some difficulties, which include the increased thermal load on optical parts and devices in the oscillator, lessened cutting condition tolerance, variation in the accuracy of products, difficult cutting, etc. Discussed in this report are measures for correcting factors affecting product quality with reference taken to a thick soft steel plate. A laser beam emitted by an oscillator is condensed by and projected through a condenser lens, and the condensing capability is affected by various factors, such as the beam mode order, beam diameter, and focal length, etc. What is important is to find out the optimal conditions. The assist gas has to satisfy certain conditions because it assumes an important role in controlling the discharge of molten metal from cut grooves, heat generated by oxidation reaction, and cooling. The properties of the material to be cut also exert some influence. In the case of thick plate cutting, the cutting capability is governed by the geometry to be fabricated. Also employed for the prevention of poor jobs due to improper condition switchover and cutting routes is an optimal cutting condition control technique. 3 refs., 12 figs.

  6. High power YAG laser cutting; Koshutsuryoku YAG laser ni yoru setsudan gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Owaki, K. [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)

    1998-08-01

    This paper describes features of high power YAG cutting. The optical fiber transmission YAG laser machining system has some advantages in which optical path length compensation unit is not required and measures for low power loss and dust are not required, when compared with the CO2 laser system. Its application to the cutting of stainless steel plates has attracted attention. Cutting tests of SUS304 were conducted using high power YAG laser. Cutting of SUS304 plate with a thickness of 40 mm could be successfully done at the power of 3.5 kW. Cutting tests of SUS304 pipes with a thickness of 8 mm in water under the depth of 20 m were also conducted using air as assist gas at the power of 2.5 kW. Excellent results were obtained without scale deposition. For the tests by the composite beam using 3 kW and 4 kW systems, SUS304 plate with a thickness of 50 mm could be cut at the cutting speed of 0.1 m/min. Laser cutting of pipes from the internal surface was conducted using a newly developed small machining head which can rotate in the peripheral direction. Excellent quality for welding was confirmed. Cutting speed and plate thickness were improved by combining water jet cutter and YAG laser unit. 6 refs., 10 figs.

  7. Leading research on next generation metal production technology; Jisedai kinzoku shigen seisan gijutsu no sendo kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The energy saving environment-friendly technology for low- grade difficult-to-process ores was researched focusing attention on the hydro-metallurgical process of non-ferrous metals. This research aims at development of both effective leaching system of metals, and separation/crystallization system recognizing the property difference between metal ions in solution. The leaching system allows the inexpensive molecular level control of electron transfer, mass transfer of metal ions and stabilization of leached metal ions in a solid/liquid interface. The system thus allows selective leaching of metals from various resources such as difficult- to-leach sulfide minerals to prepare concentrated solutions. The separation system can obtain high-purity solutions including each metal ion by advanced separation/concentration technology from the solutions. The crystallization technology (including electrolysis) is developed for preparing target metal materials by molecular level control of nucleation, particle growth, thin film formation and bulky metal formation processes. Overall energy consumption is reduced to 1/3 of that of the pyro-metallurgical method, aiming at zero emission. 15 refs., 14 figs., 11 tabs.

  8. Techniques for cost-effective electric information sharing; Cost balance wo koryoshita denshi joho kyoyuka gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Shinohara, Y. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1997-04-01

    The key technology that can effectively support the sharing of each information such as documents, data, and know-how was rearranged to clarify how to utilize it for constructing an electronic information sharing system. The key technology that supports the sharing of electronic information was rearranged from the viewpoint of information gathering, information rearrangement, and information utilization. The reduction in cost for information gathering and rearrangement is indispensable to the promotion of much information sharing. However, each automation method presently causes the deterioration in quality of the rearranged information and the increase in cost for information utilization. To realize a practical electronic information sharing system, it is important to combine the key technologies properly so that the total cost balance of information gathering and information utilization is improved. Therefore, the combination of character recognition by OCR and unpreciseness retrieval, and the complementary combination of automatic document sorting, based on multiple incomplete rearrangement systems, and multiple sorting menus were proposed. 23 refs., 5 figs., 2 tabs.

  9. Report on the FY 1999 survey on long-term energy technology strategy/basic survey for working out industrial technology strategy. Technology strategy by field - material technology field (nonferrous metal field); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (zairyo gijutsu bun'ya (hitetsu kinzoku bunya)))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The paper described the results of the survey of the nonferrous metal field relating to the FY 1999 long-term energy technology strategy. The needs for electronics products are increasing toward the 21st century. Domestically the competition with other countries in enlarging the market share has been intensifying. At the same time, the smaller the size of device becomes, the more the barriers in technology to be overcome increase. In the development of Si wafer to cope with such a situation, there are a lot of problems to be broken down in liaison with industry/government/university. Compound semiconductors are higher in speed than Si, and have a marked feature of producing light, but are difficult in crystal growth. It was in the past 20 years that the development of commercialization technology has rapidly advanced. Compound semiconductors are indispensable as a device in the energy problem which strongly influences the global environment. In the U.S., for the military use, a policy for upbringing national industries has been carried out since 1993. The role of compound semiconductor materials playing as the fundamental industry which supports the semiconductor industry and system industry as the nation's core industries is important even in Japan the same as in the U.S. (NEDO)

  10. Bio-desulfurization technology in Japan; Wagakuni ni okeru baio datsuryu gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Maruhashi, K. [Petroleum Energy Center, Tokyo (Japan)

    2000-05-01

    A bio-reaction of microbes (catalytic reaction by an enzyme) is characterized in that the reaction is carried out at a normal temperature and under a normal pressure and has particularly high specificity with respect to substrate (reactant). It is considered that a low loading process of environment harmony type can be constructed by applying the bio-reaction in petroleum refinery process. CO{sub 2} exhaust and energy consumption in the bio-desulfurization (BDS) is estimated to be 70 to 80% lower than those in hydrodesulfurization (HDS). The bio-technologies that can be applied to the petroleum refinery process include, for example, desulfurization, demetallation, dewaxing, denitration, cracking and so on. In this paper, the present state of bio-desulphurization technology is introduced. Particularly, as the research results in Japan, acquirement of mesophile R.erythropolis KA2-5-1 strain, thermophile Paenibacillus sp. A11-2 strain whose optimum temperature is 50 degrees C, BT degradation fungus Rhodococcus sp. T09 and the like are introduced. (NEDO)

  11. Fiscal 1999 research report on long-term energy technology strategy. Basic research on industrial technology strategy (Individual technology strategy). Machine industry technology field (Semiconductor equipment); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku) kikai sangyo gijutsu bun'ya (handotai seizo sochi bun'ya)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 basic research result on industrial technology strategy of a semiconductor equipment field, viewing until 5-10 years after. For the future semiconductor industry, the favorable cycling of creation of new demands through performance improvement, and further technology innovation through market expansion is essential absolutely. Since technology development is followed by investment, not only the performance of each equipment but also the higher productivity and cost balance of the whole factory are essential. Self-intelligent function and networking are thus necessary for the equipment. As measures for environment preservation and energy saving, such innovative technologies are required as recycling, reuse, reaction process improvement and alternative technology. Because of diverse final products and a short life time of products, a large-scale collective investment is becoming difficult. A mini-line sequential investment production system according to demand scales is under investigation. Some issues such as micro-technology, realization of 300mm wafer, modularization, CIM, reliability and standardization are also described. (NEDO)

  12. Leading research on artificial techniques controlling cellular function; Saibo zoshoku seigyo gijutsu no sendo kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Advanced research and its applicability were surveyed to apply the advanced functional cells to industry. The basic target was set to develop, produce, control and utilize the functional cells, such as intelligent materials and self-regulation bioreactors. The regulation factors regarding apotosis, which is a process of cell suicide programmed within the cell itself of multicellular organisms, cell cycle and aging/ageless were investigated. Furthermore, the function of regulatory factors was investigated at the protein level. Injection of factors regulating cellular function and tissue engineering required for the regulation of cell proliferation were investigated. Tissue engineering is considered to be the intracellular regulation by gene transduction and the extracellular regulation by culture methods, such as coculture. Analysis methods for cell proliferation and function of living cells were investigated using the probes recognizing molecular structure. Novel biomaterials, artificial organ systems, cellular therapy and useful materials were investigated for utilizing the regulation techniques of cell proliferation. 425 refs., 85 figs., 9 tabs.

  13. Report on the FY 1999 survey on long-term energy technology strategy/basic survey for working out industrial technology strategy. Technology strategy by field - material technology field (nonferrous metal field); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (zairyo gijutsu bun'ya (hitetsu kinzoku bunya)))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The paper described the results of the survey of the nonferrous metal field relating to the FY 1999 long-term energy technology strategy. The needs for electronics products are increasing toward the 21st century. Domestically the competition with other countries in enlarging the market share has been intensifying. At the same time, the smaller the size of device becomes, the more the barriers in technology to be overcome increase. In the development of Si wafer to cope with such a situation, there are a lot of problems to be broken down in liaison with industry/government/university. Compound semiconductors are higher in speed than Si, and have a marked feature of producing light, but are difficult in crystal growth. It was in the past 20 years that the development of commercialization technology has rapidly advanced. Compound semiconductors are indispensable as a device in the energy problem which strongly influences the global environment. In the U.S., for the military use, a policy for upbringing national industries has been carried out since 1993. The role of compound semiconductor materials playing as the fundamental industry which supports the semiconductor industry and system industry as the nation's core industries is important even in Japan the same as in the U.S. (NEDO)

  14. Simulation technique on combustion of solid propellant; Kotai suishin`yaku nensho no simyureshon gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Iida, Akihide.; Bazaki, Hakobu.; Douke, Kiyotaka. [Asahi Chemical Industry Corp., Tokyo (Japan). Oita Plant

    1999-04-30

    The burning area of propellant grain is one of the most important parameter in conducting of design on solid rocket performance. However, it has been difficult to calculate the burning area of propellant grain with precise and speed by geometrical way since most of propellant configuration have been adopted as complicated. In the present study, the simulation system was developed and produced, which was adapted `particle chasing method` to and made ot compute the burning area transition. Moreover, the reliability on computation by the system was check up on. It was found that the discrepancy of calculation between by the geometrical way and by the system was less than 1%. (author)

  15. Leading research on cell proliferation regulation technology; Saibo zoshoku seigyo gijutsu no sendo kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    For developing intelligent material, animal test alternative model, bio-cell analysis equipment, self-controlling bio-reactor and medical material, development of functional cells was studied by cell proliferation regulation technology. In fiscal 1996, the expression analysis and separation technology of specific gene for cell proliferation, and the intracellular regulation technology were surveyed from the viewpoint of intracellular regulation. The cell proliferation regulation technology by specific regulating material of cells, extracellular matrix, coculture system and embryonic cell was surveyed from the viewpoint of extracellular regulation. In addition, based on these survey results, new cell culture/analysis technology, new bio-material, artificial organ system, energy saving bio-reactor, environment purification microorganism, and animal test alternative model were surveyed as applications to industrial basic technologies from a long-term viewpoint. The approach to cell proliferation regulation requires preparation of a concrete proliferation regulation technology system of cells, and concrete application targets. 268 refs., 43 figs., 4 tabs.

  16. Generic supercritical water technology; Generic technology to shite no chorinkaisui riyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Arai, K; Ajiri, M; Inomata, H; Smith, R; Hakuta, Y [Tohoku University, Sendai (Japan). Faculty of Engineering; Yokoyama, C [Tohoku University, Sendai (Japan). The Institute forChemical Reaction Science; Chin, L [New Energy and Industrial Technology Development Organization, Tokyo, (Japan)

    1997-02-01

    This paper describes the measurement and analysis for clarifying solution structure of supercritical water and exhibition mechanism of solvent functions. It also describes the development of new processes using supercritical water as reaction solvent. The PVT measurements were conducted in the supercritical region using pure water and NaCl aqueous solution, to confirm the reduction of molar volume of the electrolyte solution. The hydration structure was examined in the supercritical aqueous solution by the molecular dynamic simulation. As a result, presence of hydrogen bond structure, where the contribution of two branching hydrogen bond can not be ignored, was suggested under the supercritical condition. Characteristics of supercritical aqueous solutions are analyzed through in-situ Raman and scattered X-ray spectral measurements. Moreover, this paper introduces developments of some processes in the supercritical water, such as decomposition of wasted polymers, recovery of chemical materials, reforming of heavy hydrocarbons by contact hydrogenation, and synthesis of fine powders of metal oxide by reaction crystallization.

  17. Demonstration technology development of new hydrogen energy; Shinsuiso energy jissho gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    This report describes results of the study on the excess heat generation phenomenon during the electrolysis of heavy water using palladium metals as electrode in FY 1995. For the measurements of excess heat using an open type electrolysis cell during the excess heat generation demonstration model tests, significant excess heat beyond the range of input was not measured both for ICARUS-1 and for ICARUS-2. For the measurements using a fuel cell, high absorbing rate more than 0.85 was stably achieved for highly pure Pd electrode material by heat treatment and surface treatment. The excess heat could be reproduced for plural tests. The heat recovery rate more than 98% was obtained using the NHE type flow calorimetric system. The excess heat measurements using this are examined. For the reactive palladium materials, various materials ranging from single crystal to cold working polycrystal materials were systematically used for the absorbing experiments. Benchmark tests were also conducted through the cooperation with related researchers. 18 refs., 135 figs., 28 tabs.

  18. Denchuken review. Prospecting and visualization technology; Denchuken review. Chika no tansa kashika gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-05-30

    This paper introduces the prospecting and visualization technology cultivated in Denchuken (Central Research Institute of Electric Power Industry). The fluctuations in underground gas, underground water, gravity, terrestrial magnetism, and terrestrial current are information from the earth. The change in underground structure, underground water movement, and underground properties can be grasped using this information. With the progress of electronic engineering, a geophysical exploration method has been rapidly developed in recent years. This method is the most advanced technology in many ground examination methods. In the Denchuken, the following methods have been put to practical use between the shallow section of several meters under ground and the deep section of several kilometers. An underground radar method, seismic prospecting method, electrical prospecting method, CSAMT method that estimates the position of geothermal sources or faults by electromagnetic waves, TDEM method, and AE method that destroys the rock at the depth of the ground and detects by slight sound. Moreover, a geotomography method that can visualize the ground depth in precision using a bore hole by nondestruction executes the tomography based on specific resistance, elastic waves, electromagnetic waves, and percolation. 127 refs., 94 figs., 4 tabs.

  19. Contamination-remedying technology based on biotechnology. ; Bioremediation. Biotechnology wo mochiita osen shufuku gijutsu. ; Bioremediation

    Energy Technology Data Exchange (ETDEWEB)

    Nishimura, M [The Japan Research Institute, Ltd., Osaka (Japan)

    1993-08-01

    Bioremediation technology is outlined. The bioremediation technology is a contamination-remedying technology for the injurious chemical matter discharged in the environment to be made innocuous by utilizing the decomposing ability of microorganisms. That technology is characterized by its energywise economical performance, secondary waste which is not producible and remedy which is possible on site against the contamination. As a treatment system, that technology comprises solid phase bioremediation (The contaminated soil is purified in a soil treatment unit.), slurry phase bioremediation (The contaminated soil is made slurry and decomposed by microorganisms.) and in-situ bioremediation (The treatment is made by injecting nutrients and microorganisms underground.). As for how to use the microorganisms, there are two methods: One in which living groups of microorganisms are activated and the other in which microorganisms are artificially cultivated. As contaminants in the US, listed are organic solvent, wood preservative, high-molecular aromatic halide, agricultural chemical, military waste, heavy metal waste and radioactive waste. 11 refs., 5 figs., 1 tab.

  20. NEDO Forum 2000. Industrial technology development session; Sangyo gijutsu kenkyu kaihatsu session

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-09-01

    This session presented the following subjects: I. IT innovation, II. Bio-seminar, III. Nano-technology, IV. Machine technology seminar, and V. 'Development subsidy project to put industrial technologies into practical use'. The theme in I relates to (1) influence of IT innovation on the society, (2) the theory of semiconductor evolution, (3) the theory of liquid crystal evolution, and (4) the theory of disk evolution. The theme II searches (1) how far have bio-technologies come?, (2) search of human evolution from genes, (3) can human being live up to 150 years by bio-technologies?, and (4) what is a DNA array (chip)?. The theme III covers (1) product innovation in polymers (new polymeric materials brought about by polymer nano-technology, taking polyolefin as an example), and (2) creation of ceramics materials by using nano-technologies. The theme IV relates to (1) ITS changes the car society into this way, (2) the current status and outlook on research and development of micro-machine technologies, and (3) the futuristic society and new industries opened by the Humanoid project. The theme V describes (1) practical application of ultra-small medical device production technologies, (2) development of next generation semiconductor manufacturing resists, (3) development for practical application of an optical brain function imaging device, and (4) development for practical application of new screening technologies toward creation of medicines using genome. (NEDO)

  1. History of technological activities of Japanese industry; Sangyo gijutsu rekishi keisho chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    History of technological activities of Japanese industry has been recorded, preserved, compiled and systematized. The purpose is to make international contribution by transmitting Japanese experience and knowledge to the world, and to bring up the human resource for researches by teaching the history of passion and efforts of the predecessors and by arousing interests and creative volitions of science and technology of young persons. However, memorial matters, data and witnesses relating to the history of industrial science and technology are rapidly being lost day by day. When leaving as it is, succession of the history to next generation becomes hard. Under such a situation, basic survey has been conducted to succeed the history of industrial science and technology and promote the creative utilization of them. This is in the third stage of the survey. This report contains the development of new cold rolled steel sheet for cars, plant engineering technology in Mitsubishi Heavy Industries, electronics, electric power distribution technology in Kansai Electric Power Co., Inc., development of the PAN carbon fibers, four cycle and low speed marine diesel engines, production of electrolytic copper foil, development of jet engines, camera makers, and production of office machinery. 86 refs., 12 figs., 9 tabs.

  2. Instrumentation technology to be used for sense alternative. Kankaku daiko wo mezasu keisoku gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Tamiya, E. (Japan Advanced Institute of Science Technology, Hokuriku, Ishikawa (Japan))

    1994-07-05

    Recently, artificial taste sensors or smell sensors that simulate the biological recognition mechanism were developed. This paper describes a smell sensor using natural and artificial fats as the molecule recognizing material and the crystal oscillator or SAW (Surface Acoustic Wave) device as the transducer. The paper also describes the results of the experiments made on the sensor. This sensor consists of 20 LB (Languivir-Blodgett) layers of several types of natural fats on the SAW device. Natural fats on the surface of the crystal oscillator were coated and the response to smelling substances was checked. The result indicates that the response is almost proportional to concentration, and that alcoholic smells can be recognized. To check receiving signal from the sensor system related to absorption and the absorption speed and converting it into higher order information, experiments were conducted to convert data into characters through the neutral network. Though there are still issues of practical use, it was verified that these techniques are effective. 9 refs., 6 figs., 1 tab.

  3. CIM overview. (2). ; Architecture, infrastructure, information technology. CIM soron. (2). ; Architecture, infra, joho riyo shien gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Seryo, K [IBM Japan Ltd., Tokyo (Japan)

    1991-12-10

    The materialization of computer integrated manufacturing (CIM) requires an establishment of its systematizing system, i.e., architecturer and planning of the infrastructure to support it and basic engineering to support the informational utilization. The CIM architecture is classified into management and system structure, strategic planning method, System development introduction method, etc. The infrastructure aims at epoch-makingly heightening the productivity and speed by integrating the production planning, engineering design, accounting, sales, general business and affairs, production engineering, production activities, and activities of suppliers and clients. The informational utilization support engineering comprises the management support tool, decision making support tool, application development tool, etc. What is important is to establish a system of systematizing engineering in order not to be behind the strategic activation era of information to come. 17 refs., 4 figs., 1 tab.

  4. New technique of railway bridges in Hokuriku Shinkansen; Hokuriku Shinkansen tetsudokyo no gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Miyabayashi, H. [Japan Railway Construction Public Corp., Tokyo (Japan)

    1996-09-01

    This paper presents new technologies of the railway bridges in Hokuriku Shinkansen. Hokuriku Shinkansen of 117km between Takasaki and Nagano is a part of Shinkansen connecting Tokyo with Nagano by nearly 1.5 hours. Its construction is in promotion under severe financial condition, and cost reduction is an essential target. Among the concrete bridges in this section, Kirizumigawa bridge, a prestressed concrete strutted 3-span continuous beam bridge, adopted a lowering erection method for its slant pier. In this method featured by high safety and profitability, the rib component of a concrete arch bridge is vertically erected on a arch support, and installed by swinging it toward the central span. In addition, a cantilever method was adopted to keep the scenery of a national park. Daini Chikumagawa bridge with the longest span of 133.9m among concrete railway bridges is the first cable-stayed prestressed concrete bridge in Shinkansen. Yashiro Minami and Kita bridges of 105m and 90m in central span are the extradosed bridges which were adopted as optimum structure for lowering the beam height of meddle-sized railway bridges. 3 refs., 12 figs., 2 tabs.

  5. Technical research and development of long-spanned bridges; Chodai kyoryo no gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Sakai, F.; Yamanaka, M.; Ogawa, K.; Mizukami, Y.; Kano, J.; Watanabe, K. [Kawasaki Heavy Industries, Ltd., Kobe (Japan)

    1996-10-15

    Outlined herein is technical development of long-spanned bridges represented by suspension and cable-stayed bridges. The design of long-spanned bridges requires theoretical analysis of flexibility in which balance after they are deformed by load is taken into consideration. The matrix finite displacement analysis program is developed for optimizing cable-stayed bridge designs and determining suspension bridge shapes as the new major functions. The analysis program, named KASTAN, is also developed for stress analysis of the structure details. A wind tunnel for structure designs is installed to analyze resistance to wind. A number of experiments have been carried out by the tunnel for the designs of segment, main tower and overall bridge models. The means of controlling wind-caused vibration include hydraulic dampers, mass dampers, and combination of high damping rubber and spacer. Cable-stayed bridges are highly flexible, their types being selected by tower height and shape, span ratio and shape of the main beam, and cable position. These bridges constructed by the company include the S-shaped ones whose main beams are supported by cables suspended by two towers of different height, and the others with H-shape towers of high columns which are connected to each other by horizontal beams. 11 refs., 15 figs.

  6. Bridge and steel structures. History and vision on bridge erection; Kyoryo kokozobutsu. Kasetsu gijutsu no shorai

    Energy Technology Data Exchange (ETDEWEB)

    Mukai, S.; Hayashi, T. [Sumitomo Heavy Industries, Ltd., Tokyo (Japan)

    1998-08-20

    This paper describes the progress of bridge erection technology. It introduces the results of cable erection, rotated/extruded erection, and cantilever erection. The cable erection is a multi point suspension erection using cables. For the rotated/extruded erection, the monolithic construction is conducted on a working yard set in a right angle to the construction position, and the horizontal beams of the bridge piers (corbel girders) are constructed by the rotated method using a slewing base incorporated around the bridge piers at one side. For the construction of stiffening girders of Innoshima-ohashi Bridge of Honshu-Shikoku Joint Bridge in 1978, trussed face bar blocks were extruded from the main tower in order using a travel crane. For the suspension bridges and cable stayed bridges, main towers were erected using various types of cranes. The erection of Tamashima-ohashi Bridge with a weight of 500 ton using an offshore floating crane is introduced as a large block method. Analysis methods and measurement techniques at the site are used in order to analyze the shape in each step under the erection and to ensure the accurate final complete shape. Reduction of the construction cost, improvement of erection technology, and technology development for large-scale projects are subjects in the future. 22 refs., 8 figs., 1 tab.

  7. Modern techniques in prestressed concrete cable-stayed bridges. Puresutoresuto concrete shachokyo ni okeru atarashii gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Miyamoto, A. (Kobe Univ. (Japan). Faculty of Engineering)

    1994-03-31

    Because the prestressed concrete (PC) cable-stayed bridges combine the distinctive features such as a rationality of the structure or a structural beauty, it will not stay on a development of the technologies to make them longer and larger, and a rationalization of the execution, an investigation from various aspects such as the scenery design, material selection, pursuit of new structure and so forth will become necessary. In a main meeting, 15 volumes of paper on the most advanced technologies of PC cable-stayed bridges were presented. The presentations from Japan were 11 volumes, and occupied about 70%, and therefore a high interest to the PC cable-stayed bridges in Japan was inferred. In the presentation from Japan, there were many relevancies of the important study themes which would become a foundation for a development of PC cable-stayed bridges in the future, like ones that an improvement effect of dynamic behavior such as the aseismatic property, wind endurance and so forth was made as an objective, ones that a safety evaluation at an ultimate state as the oblique member anchoring part, main tower or entire structure was related, ones that a construction of the various control systems when the cable-stayed bridges were executed was concerned and so forth. 23 figs., 1 tab.

  8. Recent design methods for prestressed concrete cable stayed bridge; PC shachokyo no sekkei gijutsu no genjo

    Energy Technology Data Exchange (ETDEWEB)

    Otsuka, K. [Kajima Corp., Tokyo (Japan)

    1995-02-01

    The number of constructed prestressed concrete cable stayed bridges reached nearly 100 in Japan, and the technique has greatly developed. In this article, the current status of design techniques for prestressed concrete cable stayed bridges were introduced along with the examples of constructed bridges for the analysis method and the design method for each structure part while introducing the current examples of constructed bridges. Also, this kind of extra-dosed prestressed concrete bridge and prestressed concrete bridge with prestressed concrete stays were reported. Standards have been prepared including a chapter for the prestressed concrete cable stayed bridges in the Road Bridge Guideline document in February 1990. Load to be noticed as the characteristics peculiar to the prestressed concrete cable stayed bridges includes the shock due to live load, temperature change, and execution error of a tower. For example, 1/1000 of the total tower height is generally considered as the execution error of the tower. A diagonal member is manufactured at factories and in fields and has both advantages and disadvantages. The linear analysis of plane framework is general. Damping of and earthquakeproof designs against the wind and earthquake of the diagonal member were also provided. 11 refs., 17 figs., 2 tabs.

  9. Survey on the succession situation of technologies; Gijutsu keisho jokyo chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    The basic survey was carried out to promote the succession and creative use of the previous industrial science and technology. The following 5 themes were summarized in fiscal 1993. On `Fuel technology policy and technological development,` Navy Fuel Depot, Chemical Research Institute at University of Kyoto, Central Laboratory of South Manchuria Railway Co., and Fuel Research Laboratory of the Ministry of Agriculture and Commerce played important roles, and the 1000atm continuous hydrogenation system was completed in 1941. On `Technology of long-distance power transmission,` high-voltage insulation technology finally reached an international level after World War II. On `Unification of frequency and electrical technology,` the two-frequency system for eastern and western areas was established before World War II, and construction of Sakuma Frequency Conversion Station allowed power interchange between two areas. On `Organization of national research laboratories,` the Agency of Industrial Science and Technology distinguished the roles of new and existing laboratories. On `Wind power technology in Europe and America,` comparison between American and Danish approaches is the most important issue today. 146 refs., 20 figs., 13 tabs.

  10. Fiscal 1999 research report. Research on the long-term energy technology strategy (Basic research on the industrial technology strategy (Material technology field)); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (zairyo gijutsu bun'ya))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This research clarifies the future social issues and targets of industrial technology in a material field including metal, inorganic, organic, polymer and fiber materials, and proposes the strategy for achieving such targets, based on research on changes in science and technology trend (technical innovation), and analysis on present and future industrial and technical competition powers. The future basic technologies for enhancing such competition powers are as follows: (1) Resource/energy-saving production process, (2) Design/evaluation technology for fine textures or in an atomic level, (3) Divergence toward high-purity and composite materials, (4) Improvement of a functionality, (5) Improvement of surface treatment technologies, and (6) Development of new materials and production technologies by using computer. The following 5 strategies are proposed based on the common understanding that the Japanese material industry achieves the best material technology innovation in the world by 2010: (1) Material technology strategy, (2) Strong cooperation among the industry, university and government, (3) Preparation of an intellectual base and a standardization strategy, (4) Reform of intellectual property rights, and (5) Resource strategy. (NEDO)

  11. Evaluation technology of human behavior cognition; Ningen kodo ninchi hyoka gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    For human engineering and improvement of the living environment, the evaluation technology of human behavior cognition was studied. For the future reformation and creation of economic structure, the following are required: establishment of safe and affluent communities, further improvement of the safety and harmonious balance of people, lives and society, and R & D close to people and social needs. Introduction of Product Liability law and a fail-safe concept are examples of such efforts. However, since many accidents are found in the human society, the relation between human errors and human characteristics should be studied in detail. The cognitive science of human behavior is an objective evaluation technology from the viewpoint of human being, object, environment and society. Based on these social and technological background, the feasibility of the evaluation technology is studied, and the future trend and skeleton of this project are clarified. The domestic and foreign trends of technologies concerned are thus surveyed, and the important points, features, skeleton and ripple effect of the technology are summarized. 500 refs., 70 figs., 5 tabs.

  12. Gas removal technique to maintain global environment. Chikyu kankyo hozen no tame no bojo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Yamada, K [The University of Tokyo, Tokyo (Japan). Faculty of Engineering

    1992-10-12

    This paper describes the removal technique of gases such as CO2, SO2 and NOx which have the deep relation to the maintenance of global environment. This paper describes partially r SO2 and NOx which are the primary cause of acid rain. As for the removal of CO2 generated from fixed sources (thermal power stations and others), the separation technique and isolation-fixation technique have been researched on and developed. Of the separation method, the effect of the chemical absorption method and the adsorption method is proved with the preceding experiments. The isolation method is differently researched on as to store under deep sea or ground but may be urgent and temporary. The fixation of CO2 is a serious global problem which relates to the afforestation and forests. The fixation which uses coral reefs in ocean as the absorption source has a potential. As for the processing of substances causing acid rain, the desulfurization from petroleum and the flue gas desulfurization have the excellent results. The improvement of combustion method or the flue gas denitrification at the fixed sources are used to remove NOx. The removal of NOx from all diesel cars is difficult compared with the exhaust gas cleaning of gasoline cars and is not commercialized. 11 refs., 1 fig., 2 tabs.

  13. Fiscal 1999 research report on long-term energy technology strategy. Pt. 2. Basic research on industrial technology strategy (Individual technology strategy.) Material technology field (Fine ceramics); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. 2. Sangyo gijutsu senryaku sakutei kiban chosa (bun'ya betsu gijutsu senryaku) zairyo gijutsu bun'ya (fine ceramics gijutsu bun'ya)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the basic research result on industrial technology strategy for a glass field. Japan is facing such various economic problems as attack by developing countries, collapse of economic babble and yen's appreciation, and environment problems over a period of several years, and a glass industry is also under the influence of such problems. For continuous development of Japan and improvement of the international competitiveness of Japan, development of a glass industry is essential. Both co- possession of technical issues by cooperation of the members, and breakdown of conventional structures of the industry are necessary. Clarification of technical issues, and cooperation of industry, academia and government is essential. The current state, promise and issues of domestic and overseas glass technology and its R and D are described. The joint target of an industrial strategy for researchers and engineers of every sector, and the approach to such target are showed from the viewpoint of the issues for Japan and preparation of common basic technology. The role of each sector for environment preparation and policy is described to achieve the target. (NEDO)

  14. Report on the FY 1999 survey on long-term energy technology strategy/basic survey for working out industrial technology strategy. Part 1. Technology strategy by field - material technology field (fine ceramics technology field); 1999 nendo choki energy gijutsu senryaku ni kansuru chosa. 1. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (zairyo gijutsu bun'ya (fine ceramics gijutsu bun'ya)))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The paper described the results of the survey of the fine ceramics technology field relating to the FY 1999 long-term energy technology strategy. The fine ceramics industry is a new industry for which the future development is expected. It has far-reaching effects on other industries. Japan has the advantage over other countries. As subjects to remarkably develop the industry, needed are the long-term basic preparation which promotes technology innovation such as the promotion of the fundamental/creative R and D, construction of an industry/university liaison system, and arrangement of the intellectual base. Preparation of the competitive environment and promotion of policies paying attention to the market are needed which make the development under the private control by creative study/corporate activities possible. Also important are the demonstration of leadership and secure international competitive force in the light of Japan's international position. For the private-control development, the role and course of various groups should be made clear from a long-term aspect. It is desirable that university/government will newly develop innovative technology, and industry will make the present technology force more developmental and competitive. Support from the nation is requested for researches large in scale. (NEDO)

  15. Achievement report for fiscal 2000 on research and development of key technologies for superconducting generator. Research and development of key technologies to increase density, research and development of key technologies to increase capacity, research and development of design technologies, and research of technologies; 2000 nendo chodendo hatsudenki kiban gijutsu kenkyu kaihatsu seika hokokusho. Komitsudoka kiban gijutsu no kenkyu kaihatsu / daiyoryoka kiban gijutsu no kenkyu kaihatsu / sekkei gijutsu no kenkyu kaihatsu / gijutsu chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Researches have been made to increase density of 200,000-kW class generator and to increase capacity of 600,000-kW class generator necessary for putting superconducting generator into practical use. This paper summarizes the achievements in fiscal 2000. In the study of increasing densities of superconductors and field windings, strands were fabricated, in which aging heat treatment conditions, number of aging, and processing degrees between each aging were varied, to increase the critical current of Nb-Ti strand, wherein as high critical current as corresponding to about 90% of the target was obtained. Possibility of increasing the critical current with the final processing degree in the range of 4 to 5 was verified from the relationship between the final processing degree and the critical current. In the study of increasing capacities of superconductors and field windings, findings were acquired on enhancement of conductor stability and reduction in AC loss, with regard to superconductor strands well balanced in the two elements. Prospects were obtained in achieving the AC loss of 200 kW/m{sup 3} in the targeted superconductor. The residual resistance ratio was found to be 200, showing sufficiently high value, and sufficient function was verified in the stabilized copper. In the research of design technologies, primary basic design was performed. (NEDO)

  16. FY 1999 New Sunshine Project survey research project - Survey on the long-term energy technology strategy, etc. Fundamental survey to decide on the industrial technology strategy - Technology strategy by field (Aerospace technology field - Airplane technology field); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (koku uchu gijutsu bun'ya (kokuki gijutsu bun'ya)))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The survey/study were conducted to contribute to proposing technology strategies such as the analysis of the present state of technical competitive force and the forecast in the airplane technology field. In future airplane industry, to meet the requests/restrictions from the society in the international airplane industry in the recent years, it is predicted that technology innovation will advance centering on the following four fields: next generation airplane technology to enable the innovative cost reduction in development/production, technology to realize the substantial reduction in flight cost of airline, technology to enhance reliability for the next generation flight which meets the multi-frequency flight/increasing demand for small plane, and airplane frontier technology. Moreover, regulations especially on noise, CO2 reduction and NOx reduction are becoming very strict internationally because of the increasing concern about global environmental problems. It is urgently needed to establish technology to cope with these trends. As the comprehensive strategy, the following are considered: development of airframe under the leadership of Japan and securing of the demand, efficient arrangement and operation of large-scale experimental facilities, IT adoption to the airplane industry, organic cooperation by industry/university/government, etc. (NEDO)

  17. Server for experimental data from LHD

    International Nuclear Information System (INIS)

    Emoto, M.; Ohdachi, S.; Watanabe, K.; Sudo, S.; Nagayama, Y.

    2006-01-01

    In order to unify various types of data, the Kaiseki Server was developed. This server provides physical experimental data of large helical device (LHD) experiments. Many types of data acquisition systems currently exist in operation, and they produce files of various formats. Therefore, it has been difficult to analyze different types of acquisition data at the same time because the data of each system should be read in a particular manner. To facilitate the usage of this data by researchers, the authors have developed a new server system, which provides a unified data format and a unique data retrieval interface. Although the Kaiseki Server satisfied the initial demand, new requests arose from researchers, one of which was the remote usage of the server. The current system cannot be used remotely because of security issues. Another request was group ownership, i.e., users belonging to the same group should have equal access to data. To satisfy these demands, the authors modified the server. However, since other requests may arise in the future, the new system must be flexible so that it can satisfy future demands. Therefore, the authors decided to develop a new server using a three-tier structure

  18. Fiscal 1999 research report. Data acquisition and analysis on the advanced high-efficiency energy system field test; 1999 nendo sendoteki kokoritsu energy system field test jigyo ni okeru data shuyaku oyobi hyoka kaiseki chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Although the next-generation phosphoric acid fuel cell has nearly reached its practical application stage as far as technology is concerned, its diffusion is yet to come due to lack of data about its cost efficiency and reliability. Under the circumstances, the goal now is to collect and analyze various data obtained in the above-named project which was started in fiscal 1997 for the compilation of data useful for full-scale diffusion in the future so that a foundation may be built for the overall popularization of the fuel cell. In this fiscal year, assessment and analysis have been conducted at 15 test sites now in presence. At the second plant of the Semboku LNG Terminals where approximately 17,000 hours have elapsed since the test began, the cell has operated for more than 16,000 hours in total. The Mycal Bore Sanda has established the longest uninterrupted operation record of 6,500. As for power generation efficiency, a town gas 13A-fueled system exhibits approximately 40% operating smoothly at a high overall efficiency of not less than 90%. (NEDO)

  19. Condensation of refrigerants in horizontal microfin tubes. Numerical analysis of heat transfer for annular flow regime; Reibai no microfin tsuki suihei kannai gyoshuku. Kanjoryu ryoiki ni okeru netsudentatsu no suchi kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Nozu, S [Okayama Prefectural University, Okayama (Japan); Honda, H [Kyushu University, Fukuoka (Japan). Institute of Advanced Material Study

    1998-07-25

    A method for predicting the local heat transfer coefficient is presented for film condensation of vapor in a spirally grooved horizontal microfin-tube. Based on the flow observation study performed by the present authors, film flow model between fins in the annular flow regime is proposed. For the fin surface, laminar condensate film controlled by the combined effects of vapor shear and surface tension forces is analyzed. While, in the groove, thick condensate film driven by the vapor shear force is taken into consideration. A parameter which accounts for the transition from annular- to stratified flow regimes is also derived. The present and previous local heat transfer data for fluorocarbon refrigerants in the annular flow regime are found by the present numerical analysis to have a mean absolute deviation of 15.1 percent. 12 refs., 10 figs., 2 tabs.

  20. Kinetic analysis of photochemical sterilization of thermoduric bacterial spores in slurry of semiconductor catalyst particles with aeration. Handotai shokubai ryushi no tsuki kendakukei ni okeru tainetsusei saikin hoshi no hikari sakkin to sono sokudoronteki kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Tone, S; Taya, M; Kato, S; Horie, Y; Ashikaga, Y [Osaka Univ., Osaka (Japan). Faculty of Engineering and Science; Joo, Hyunkyu [Konkuk Univ., Seoul (Korea, Republic of)

    1993-11-10

    To study the utilization of the photochemical sterilization of thermoduric bacterial spores B. stearothermophilus with photocatalysis of TiO2 particles, light irradiation experiments are conducted under various operational conditions. TiO2 particles and dissolved oxygen resulting from aeration must coexist to accelerate the rate of spore sterilization under light irradiation of a high pressure mercury lamp. The sterilization rate increases with larger average light intensity in the reactor, and it is estimated that the dissolved oxygen contributes to the formation of oxidative radicals which become the attacking species. The maximal rate of spore sterilization is obtained under the condition of TiO2 concentration of 5[times]10[sup -2]kg[center dot]m[sup -3]. By combining a second-order rate equation, wherein the spores' death caused by the oxidative radicals formed by TiO2 photocatalysis is taken into consideration, and single-hit multitarget model, wherein the target damaged by the oxidizer in the spores is assumed, the sterilization velocity can be described well, and the effect of light intensity and the obtained rate parameters are correlated well. 13 refs., 7 figs., 3 tabs.

  1. FY 1998 report on the comprehensive analysis in the geothermal development promotion survey. Tertiary. No.C-3 Akinomiya area; 1998 nendo chinetsu kaihatsu sokushin chosa sogo kaiseki hokokusho. No.C-3 Akinomiya chiiki (Dai 3 ji)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-01-01

    The geothermal development promotion survey was conducted in the Akinomiya area, Ogachi county, Akita prefecture, and the FY 1998 results were summed up. In the surface survey, geology/electromagnetism/precision gravity survey was made as supplementary survey, and re-analysis of 3D models was made. In the well survey, three wells of N10-AY-6 to N10-AY-8 were drilled to conduct the core examination, temperature/pressure logging, sampler logging, short-term jetting test, etc. Also conducted were the reservoir evaluation, environmental effect survey, etc. by pressure monitoring and water level observation. The results of the comprehensive analysis predict the following. In the Akinomiya area, there exists heat source in deep parts around Mt. Yamabushi-dake and Mt. Takamatsu-dake; Being given heat from this heat source, rocks, ground water and volcanic gas react on each other to form geothermal fluids. It is presumed that high temperature geothermal reservoirs exist in the east of the area. Moreover, the pressure distribution indicates that the Akinomiya reservoir and Wasabizawa reservoir can be a chain hydraulically. On the other hand, the west of the area is the low temperature and heat conductive area, and therefore, there seem to be no high temperature fluids there. (NEDO)

  2. Robust estimation of space influence model. Part 2. ; Synthesis of urban lattice data analysis for practical use. Kukan eikyo model no antei suiteiho. 2. ; Jikkenteki mesh data kaiseki system kochiku no tameno kukan sokan bunsekiho no taikeika

    Energy Technology Data Exchange (ETDEWEB)

    Aoki, Y.; Osaragi, T. (Tokyo Institute of Technology, Tokyo (Japan). Faculty of Engineering)

    1991-07-30

    In this study, a method for robust estimation of parameters of the space influence function model, which was possible to become unstable, was investigated by applying a principal component method. In order to carry out the robust estimation of parameters without the effect of multicollinearity, regression coefficients of principal components with small eigenvalue and with small single-correlation with dependent variables were required to forced to be zero in the estimation method by principal component. Through the case study using the real urban lattice data, the conventional method was compared with the principal component method. As a result, the latter method realized the excellent sabilization of spatial distribution patterns of estimation parameters and the simple interpretation of parameters. It also improved reliability since 95% confidence interval of the estimated value became smaller. This method was found to be effective as a basic measure to acheve the stability of parameters. 10 refs., 7 figs.

  3. Joint analysis of refraction seismic survey with multilevel hydrophone measurement (application for detecting the high velocity thin lid); Kussekiho jishin tansa data to kochu hydrophone data no fukugo kaiseki no rei

    Energy Technology Data Exchange (ETDEWEB)

    Mori, S; Harada, T; Hayashi, K [OYO Corp., Tokyo (Japan)

    1996-05-01

    During a refraction seismic survey conducted at a spot where a high-speed lava layer is supposedly concealed, the distribution of lava layer was estimated, and a composite analysis involving the vibration data received via hydrophones arranged in a bore hole was accomplished using a high-speed model based on an assumed geological section. The refraction survey centered on the bore hole and was accomplished using 250m-long traverse lines extending therefrom, one to the upstream and the other to the downstream of a river, producing a total length of 500m. The hydrophones were installed in the bore hole, and the measurement was carried out in an offset VSP-like observation pattern. In the analysis, the velocities obtained by the refraction survey and velocity logging were assigned to each layer on the basis of the assumed geological section for the construction of a velocity distribution model, which served as the early model for the repetition of calculation. Calculation was repeated with help of the said model, and a geological structure, capable of explaining the travel time data collected during the refraction survey and velocity logging, was successfully estimated. 1 ref., 5 figs.

  4. Time domain electromagnetic method for petroleum exploration. Part 3. Case study in Yoneyama area; Sekiyu tansa ni okeru TDEM ho data shutoku to kaiseki ni tsuite. 3. Niigataken Yoneyama chiiki deno tekiyorei

    Energy Technology Data Exchange (ETDEWEB)

    Ishikawa, H; Mitsuhata, Y [Japan National Oil Corp., Tokyo (Japan); Shiga, N [Mitsui Mineral Development Engineering Co. Ltd., Tokyo (Japan)

    1996-05-01

    The result is reported of a TDEM method-based survey for oil exploration conducted in the Yoneyama district, Niigata Prefecture. The survey covered the southern part of the sedimentary basin in the prefecture, known for the poor quality of the seismic prospecting data that had been recorded. The purpose of the TDEM method-assisted survey was to probe the high-resistivity volcanic rock structure and low-resistivity sedimentary layer, and to know their details. The obtained data were subjected to interpretation by use of the 1D inversion method. A 4000m-deep level was subjected to interpretation, 34 data were inputted, and the early model consisted of 20 layers. As the result, it was found that there was a high-resistivity layer ranging from the ground surface down to a depth of approximately 500m, that a low-resistivity layer 2500-3000m in thickness lay thereunder, and that the lowest layer had a high resistivity of approximately 100 Ohm m. By comparing these data with the geological structure, structures were disclosed corresponding to the rock bed depth, Ukawa syncline, Ishiguro anticline, and Yoneyama mountain mass. 3 refs., 10 figs., 1 tab.

  5. Output characteristic of photovoltaic module on different installing conditions. Comparison with calculated value and measured value; Secchi joken no kotonaru taiyo denchi module no shutsuryoku tokusei. Suchi kaiseki to jissokuchi tono hikaku

    Energy Technology Data Exchange (ETDEWEB)

    Sasaki, T.; Morita, Y.; Iwawaki, H.; Fujisawa, T.; Tani, T. [Science University of Tokyo, Tokyo (Japan)

    1997-11-25

    The paper studied output characteristics of photovoltaic modules different in installation conditions on the basis of the energy balance state. In the study, an energy balance equation was constructed for insolation intensity, heat losses from PV surface/back, and output, in order to calculate cell temperatures in each installation condition. A comparative study was made between calculated results and measured data obtained on the top of the school building. The results indicated the following: The thickness of thermal boundary layer became approximately 27mm at insolation intensity of 800 W/m{sup 2}, ambient air temperature of 25degC, and wind velocity of 0.5m/s. When widening air gap from 20mm to 40mm, the cell temperature decreased 4degC, and the output increased 1.6%. In the case of installing photovoltaic modules on the roof considering the relation between the air gap in the heat balance state and the thickness of thermal boundary layer, heat from PV back was released outside the air gap if widening the air gap to more than 30-40mm. The type with a heat insulating material on the panel back decreased in output from other types. 5 refs., 7 figs., 4 tabs.

  6. Evaluation and analysis of long-term operation data for a grid connected PV generation system; Nippon de hajimete no gyakuchoryu ari kojin jutaku taiyoko hatsuden system no choki unten jisseki no hyoka kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Ishida, T.; Kozuma, S.; Hagihara, R.; Kishi, H.; Uchihashi, K.; Tsuda, S.; Nakano, S. [Sanyo Denki Co. Ltd., Tokyo (Japan)

    1997-11-25

    Long-term operation of a photovoltaic power generation system installed in a private residence in Osaka in 1992 is evaluated. Since the sale of power by back flow was approved five years ago, it has been working continuously without troubles. The evaluation covers the array output coefficient, inverter performance, system output coefficient, and power generation and sale track records. The findings obtained are mentioned below. Regular seasonal changes are observed in the array output coefficient, high in winter and low in summer, but the variation is smaller in amorphous arrays than in polycrystalline arrays. The monthly level of inverter performance is almost in all months higher than 0.90 specified for standard operation. The overall system output coefficient is 0.749, which is higher than the average value in NEDO`s field test business report. A total of 7852kWh has been generated since the system started operation five years ago, of which 3787kWh or 48% has been sold. 3 refs., 9 figs., 5 tabs.

  7. Dynamic analysis of 19-span continuous space frame bridge with lead rubber bearings based on vibration tests; 19 keikan renzoku rittai menshinkyo no shindo jikken ni motozuku doteki kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kajikawa, Y.; Fukada, S. [Kanazawa Univ. (Japan); Sugimoto, M.; Hama, H

    1998-10-21

    The Hanshin/Awaji earthquake disaster caused extensive damage to many bridges of the Hanshin Expressway. N particular, falling-down of superstructures and other destructive damage occurred at Benten Kouku which located in downtown of Kobe. After the earthquake disaster, the continuous 19-span space frame bridge with lead rubber bearings which had approximate 565m bridge length was reconstructed in this region. It is the first trial in Japan to use large lead rubber bearings as an isolator or as a damper at the bottom of the steel pier for the purpose of reduction of seismic force acting on this bridge. As the lead rubber bearings, a spring member was used. In this study, by using jack with a raid releasing mechanism, monotonous loading tests loading statically at the bottom of the pier and rapid releasing tests deloading loads in a moment were carried out. Further, the simulation of the experiment was conducted on the analysis and the analytical model was established in comparison of the experimental data and the analytical data. Using this model, owing to carry out the seismic response analysis, more reliable analytical results were obtained. 22 refs., 24 figs., 3 tabs.

  8. Stability analysis and it prime s application of a guided vehicle with target tracker model uncertainties. Mokuhyo tsuibi sochi no model fukakuteisei wo koryo ni ireta hishotai yudo seigyokei no antei kaiseki to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Eguchi, H; Tanaka, T [Defence Agency, Tokyo (Japan); Yamashita, T [Kyushu Inst. of Technology, Fukuoka (Japan)

    1990-08-05

    The stability of a missile guidance system was analyzed with the Popov {prime} s hyperstability theory, considering target tracker model uncertainties. After the basic block diagram was derived as a mathematical model of the guidance system, the stability of the guidance system was analyzed as a nonlinear time-variable system, based on the Popov {prime} s hyperstability theory. Based on the results, several requirements of target tracker model uncertainties, and dynamic properties such as a natural frequency and damping characteristics of missiles, were derived for the hyperstability of the guidance system. In addition, after the hyperstable minimum range of missiles was defined, the relation was given by the use of an example between target tracker model uncertainties and the hyperstable minimum range or miss distance. As a result, the analysis allowed to derive design requirements such as dynamic properties for robust guidance systems. 12 refs., 11 figs., 2 tabs.

  9. Fiscal 1999 geothermal development promotion survey. Structural boring survey work and analysis report (No.B-6 - Tsujinodake area); 1999 nendo chinetsu kaihatsu sokushin chosa. Kozo shisui chosa koji oyobi kaiseki hokokusho (No.B-6 Tsujinodake chiiki)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-12-01

    Cuttings from bores N11-TD-2 and N11-TD-3 drilled for the purpose of confirming the existence of geothermal resources in the Tsujinodake area were examined and tested, and the results of temperature logging, electrical logging, and water injection tests carried out during the structural boring work were analyzed. Activities were conducted in the four fields of (1) test boring work, (2) survey and measurement, (3) core cutting examination, and (4) comprehensive analysis. In bore N11-TD-2 positioned in the northern part of Tsujinodake, a sharp temperature rise was detected in the clay converted alteration zone between 200m above sea level and 200m below sea level. A high temperature of 215 degrees C was recorded at 200m below sea level, and it was found that high temperature geothermal water was in reserve at the bottom of the clay converted alteration zone between 100m above sea level and 200m below sea level. In bore N11-TD-3 in the southern wall of the Ata caldera, a convection type low temperature profile was observed at a shallow level and low temperature convection of underground water was detected there. (NEDO)

  10. Characteristics of mixed culture where one type of microorganism assimilates the metabolite; Isshurui no biseibutsu ga seiseisuru taishabutsu wo betsuno shuruino biseibutsu ga shikashite zoshokusuru kongo baiyo no moderuka to tokusei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Toyama, M.; Matsunaka, T.; Shimizu, K. [Kyushu Inst. of Tech., Fukuoka (Japan). Dept. of Biochemical Engineering and Science

    2000-11-10

    Unstructure models were developed for a mixed culture where one microorganism assimilates the metabolite produced by another microorganism The model system was a mixed culture using Lactobacillus delbrueckii and Ralstonia erthroprop where the former assimilates glucose and produces lactic acid, and the latter assimilates lactate and produce poly {beta}-hydroxy butyrate (PHB). Performance improvement is shown for the mixed culture over a single culture for chemostat using the model developed. Since the optimal dissolved oxygen (DO) concentration is different for each microorganism, we developed another model which takes into account the effect of DO concentration on the dynamic behavior. Then the optimal DO concentration is obtained for chemostat. Moreover, we developed another model which takes into account NH{sub 3} concentration on the cell grown and PHB production by R. eutropha. Then the optimal time-profile for NH{sub 3} concentration is derived using the maximum principle. It is found that high Phba production could be attained even if NH{sub 3} concentration is not controlled if initial NH{sub 3} concentration is appropriately selected. (author)

  11. Quantum analysis in the transition process to excited state of an oxygen molecule induced by electron collisions; Denshi shototsu ni tomonau sanso bunshi ni okeru reiki jotai sen`i no ryoshironteki kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Ishimaru, K. [Gifu National College of Technology, Gifu (Japan); Okazaki, K. [Tokyo Inst. of Technology, Tokyo (Japan)

    1996-06-25

    For understanding of fundamental chemical reactions under a highly non equilibrium condition which is quite often used in plasma processing, the relevant atomic and molecular processes must be clarified. In this study, an analysis of the transition process to the excited state of an oxygen molecule induced by electron collisions in the oxygen plasma has been carried out. First, the electron density distribution in an oxygen molecule has been calculated using the extended Huckel molecular orbital method. Then, the electron potential energy distribution in the transition process to the excited state has been estimated. The electron behavior has been calculated using the estimated unidimensional electron potential energy distribution and unsteady quantum mechanics. As a result, the transition process to the excited state of an oxygen molecule induced by electron collisions and its conditions have been clarified qualitatively. 9 refs., 9 figs.

  12. Characteristics of a Ti:sapphire laser pumped by a Nd:YAG laser and its analysis. Nd:YAG laser reiki Ti:sapphire laser no dosa tokusei to sono kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Okada, T.; Masumoto, J.; Mizunami, T.; Maeda, M.; Muraoka, K. (Kyushu Univ., Fukuoka (Japan). Faculty of Engineering)

    1991-06-29

    Although Ti: Sapphire expects of a possibility of being a light source much superior to a dye laser having been used as a wavelength variable laser for spectral analyses, it has a limitation that it does not oscillate directly in the visible and ultraviolet regions. In order to develop a light source that is synchronizable over ultraviolet-near infrared regions, by means of combining a Ti: Sapphire laser of a high peak power, comprising an oscillator and a multistage amplifier, with a non-linear frequency conversion method for harmonic generation and Raman conversion, a prototype Ti:Sapphire laser that is excited by YAG laser second harmonic, and that synchronizes with a prism was fabricated, and its operational characteristics were investigated. As a result, an output energy of 35.6 mJ at a maximum was obtained at a wavelength of 773 nm against an excitation energy of 129 mJ, a conversion efficiency of 38.2% was obtained against the absorption energy of the crystals, and a continuous synchronism was achieved over 750 to 900 nm. 4 refs., 9 figs., 1 tab.

  13. Determination of electron impact ionization and excitation coefficients in He-Xe gas mixtures. He-Xe kongo gas ni okeru denshi shototsu denri keisu oyobi reiki keisu no sokutei to kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Takahashi, K.; Tachibana, K. (Kyoto Inst. of Technology, Kyoto (Japan))

    1991-03-20

    The rare gas discharge gives a stable discharge and light emission characteristics at low temperature in comparison with the discharge of the vapor of such a metal as Hg. The present barrier for the commercialization of the color PDP lies in the lower level of its emission intensity and efficiency in comparison with that of CRT. In this report, an electron impact ionization coefficient in a gas mixture and an electron impact excitation coefficient for a XeIs {sub 4} level were analyzed using a Boltzmann equation by means of a steady state Townsend method using a drift tube. By comparing both, the elementary process in the gas mixture is investiagted to discuss the respective contributions for the effective ionization coefficient and the excitation coefficient. As a result, it was found that the ionization process in the He-Xe gas mixture could be described by the processes of direct ionization of Xe and He, and an indirect ionization (Penning effect) by an active helium. 37 refs., 12 figs.

  14. Fiscal 1996 survey report. Data collection and evaluation analysis in the project on field tests on the fuel cell generation; 1996 nendo kenkyu hokokusho. Nenryo denchi hatsuden field test jigyo ni okeru data shuyaku oyobi hyoka kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The paper installed fuel cell power generation equipment experimentally at various facilities which are the final diffusion form of the new energy power generation, conducted long-term operation under the actual load, collected/analyzed various data, arranged them as data useful for full scale introduction/diffusion, aiming at forming the base for general diffusion of the fuel cell power generation. The number of the systems installed for field test execution has been 24 places/28 units since the start of the project, and the system capacity totaled 4,250kW. The actual operation hours in five years are 6,000-28,000. In fiscal 1996, the average cumulative accumulated operational rate was approximately 68%, a little over that in fiscal 1995, 65%. The average load factor was 69% in fiscal 1995 and 70% in fiscal 1996. The utilization rate increased as a whole to about 57% on average if seeing only fiscal 1996, as compared with that in fiscal 1995, about 48%. The power generating efficiency was approximately 34% on average. As to the status of shutdown of the fuel cell power generation, the paper surveyed the average interval of failure, the rate of frequency of shutdown, the analysis of shutdown, etc. 250 figs., 29 tabs.

  15. Fiscal 1999 geothermal development promotion survey report. Structural boring survey work and analysis (No. B-5 - Musadake region); 1999 nendo chinetsu kaihatsu sokushin chosa. Kozo shisui chosa koji oyobi kaiseki hokokusho - No. B-5 Musadake chiiki

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-12-01

    For geothermal development in the Musadake region, Shibetsu-gun, Hokkaido, structural boring was carried out and boreholes were inspected. In the structural boring survey, borehole N11-MD-3 was drilled as deep as 2,001.18 m, and borehole N11-MD-4 2001.44 m. Performed or tested for each of the two boreholes were temperature logging, electrical logging, temperature recovery, reinjection, core cutting examination, and so forth. The result of the temperature logging shows that temperature rise is slower at levels deeper than 1280 m in borehole N11-MD-3, with the maximum temperature marking 274 degrees C, and, in borehole N11-MD-4, the maximum temperature is 198 degrees C. No reinjection test is carried out because the ground pressure is too high to allow the replacement of the borehole content with fresh water. Analysis results lead to a conclusion that the hot fluid in this region originates in fossil seawater and in meteoric water, the latter arriving after a long-term permeation process, heated by thermal conduction to 270 degrees C or higher. It is inferred that the geothermal fluid flows in a fissure in the vicinity of the Musadake/Mt. Shitabanupuri fault and a fault orthogonally crossing the said fault for the formation of a high-temperature geothermal storage. (NEDO)

  16. Persistent current analysis of superconducting coils in a linear synchronous motor for maglev passenger transport system. Fujoshiki tetsudoyo linear doki motor ni okeru teijisoku mode chodendo coil denryu no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Azusawa, T [Toshiba Corp., Tokyo (Japan)

    1994-05-20

    The simple analysis method of persistent current induced in on-board superconducting coils was proposed for the vehicle of a superconducting magnetically-suspended train which is running in the magnetic field generated by armature coil current of a linear synchronous motor installed along a guideway, and the performance of the method is discussed through calculation based on typical models. As fluctuation of persistent current due to running was calculated with various parameter values under a normal running condition, fluctuation of persistent current induced was less then 1% of an initial magnetomotive force, having no adverse effect on the stability and reliability of superconducting magnets. Electromagnetic forces under a normal running condition could be predicted accurately enough by relatively easy-to-calculate constant current mode analysis. Double-layered armature coils were preferred to single-layered ones to enhance the stability of superconducting magnets by reducing fluctuation of persistent current. 10 refs., 8 figs., 1 tab.

  17. Overall analysis report on the fiscal 1994 geothermal development promotion survey. No.C-2. Wasabizawa area (secondary); 1994 nendo chinetsu kaihatsu sokushin chosa sogo kaiseki hokokusho. No.C-2. Wasabizawa chiiki (dainiji)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-01-01

    The Wasabizawa area is located near the boundary between Yuzawa city south of Akita pref. and Ogachi-machi, Ogachi-gun, Akita pref, having a range of 3.0km northeast-southwest and 2.5km northwest-southeast of Wasabizawa almost as a center. The area for survey and its circumference are national forests, and the east and a part of the south of the area are designated as the Kurikoma quasi-national park third type special region. From the geochemical temperature distribution, it can be assumed that geothermal fluids of around 300{degree}C exist in the deep underground of the Kaminotai-Wasabizawa-Akinomiya area. From the distribution of density basements, the block structure of the basement can be estimated. Around the boundary of the ridge/sedimentation region of this density basement, fractures develop and the formation of reservoir structure is expected from the comparison with the result of the well survey. In the blowout test, obtained were 284.3{degree}C and 83.05 kgf/cm{sup 2} at a depth of 1,300m. In the geothermal system, it is assumed that reservoir structures of geothermal fluids develop in the deep underground of the central part of the area. The heat source to the geothermal system is supposed to be the magma reservoir remaining in Takamatsudake volcanic rocks. 110 refs., 177 figs., 105 tabs.

  18. Considerations on FEM modeling in analyzing buckling and plastic collapse of a detection control; Boto panel no zakutsu sosei hokai kaiseki ni okeru FEM model ka ni kansuru kosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Yao, T; Fujikubo, M; Yanagihara, D; Irisawa, M [Hiroshima University, Hiroshima (Japan). Faculty of Engineering

    1997-10-01

    Buckling and plastic collapse of upper decks and bottom outer plates of a hull results directly in longitudinal bending collapse of the hull. Therefore, discussions were given on analysis for pressure destruction strength of a detection control panel which assumes an upper deck and a bottom outer plate. Pressure destruction behavior of the panting panel is a complex phenomenon accompanying non-linearity and geometrical non-linearity of the materials. Its whole phenomenon may be analyzed by using the finite element method (FEM) as a principle, but the analysis is not efficient. Therefore, considerations were given in relation to modeling when using the FEM. The considerations were given on a panel attached with flat steel panting members with respect to the modeling scope which considers the buckling mode according to the aspect ratio of the panel partitioned by the deflection control members. If the local buckling mode of the panel is an even number wave mode in the longitudinal direction, a triple span model is required. A modeling scope for a case of being subjected to water pressure and in-plane compression was considered on a panel attached with angle-type steel members having non-symmetric cross section. In this case, a triple bay model is more preferable to reproduce the behavior under water pressure loading. 1 ref., 6 figs.

  19. Fiscal 1997 research report on the data collection, evaluation and analysis in the PV power generation field test project for public facilities; 1997 nendo kokyo shisetsu nado yo taiyoko hatsuden field test jigyo ni okeru shushu data hyoka kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    As a part of the field test project for diffusing PV power generation into public facilities generally, evaluation and analysis were made on the collected data from 105 sites installed during fiscal 1993-1996. Analysis of operation characteristics was made by using parameters obtained by developing a basic equation for every component. 94% of all the sites fell under the total solar irradiation of 3.0- 4.5kWh/m{sup 2}/D. 83% of those fell under the equivalent array operation time of 2.5-4.0h/D. 70% of those fell under the equivalent system operation time of 2.5-3.5h/D. 72% of those fell under the system operation time of 9.0-12.0h/D. 78% of those fell under the effective inverter efficiency of 0.84- 0.96. 68% of those fell under the inverter load factor of 0.25-0.35. 85% of those fell under the array performance ratio of 0.7-1.0. 83% of those fell under the system performance ratio of 0.6-0.9. The generation cost decreased from 270yen/kWh in 1993 to 100yen/kWh in 1996 because reduction of an installation cost largely contributed to reduction of the total cost. (NEDO)

  20. FY 1998 Report on development project of structural residence of the next generation. Attachment 4. Frame analysis system manual; 1998 nendo jisedai kozo jutaku kaihatsu jigyo shiryohen. 4. Kako kaiseki system manual

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Attachment 4 of the FY 1998 report on development project of structural residence of the next generation describes the frame analysis system manual. NAPISOS is a program for analyzing static and dynamic responses of three-dimensional structures. The dynamic response is calculated by numerical integration in the time region. Dynamic load can handle dynamic exciting force, uniform seismic input and forced displacement at a node, and analyze linear elasticity and non-linear properties. The static load can handle nodal force, static seismic coefficient and forced displacement at a node, and analyze linear elasticity and non-linear properties. The static analysis also can perform analysis based on the time history response displacement method as the special case. The program implementation procedures fall into 4 general steps; first: inputting/processing of structural data, second: eigen value analysis or equivalent nodal force calculation, third: response calculation by direct integration, preparation of equivalent damping matrix or pre-stress analysis, and fourth: outputting the results. The input data related to control, structure and load are also described. (NEDO)

  1. Fundamental study on the response analysis of liquid tracer in gas-liquid, two-phase steady flow in porous media; Takoshitsu sonai kieki niso teijoryu ni okeru ekiso tracer no oto kaiseki ni kansuru kisoteki kento

    Energy Technology Data Exchange (ETDEWEB)

    Haga, D; Niibori, Y; Chida, T [Tohoku University, Sendai (Japan)

    1998-10-25

    Fluids in geothermal reservoirs are not necessarily in the single phase but is occasionally in the gas-liquid double phase. This study aims to collect fundamental knowledge about the analysis of tracer responses in a gas-liquid two-phase flow, with special attention paid to the movement of substances in the liquid-phase portion of the two-phase flow. A tracer test is conducted in a glass bead-filled layer, and then it is found that the conventional mixture-diffusion model fails to explain the outcome of the test conducted using the said very simple apparatus. The failure is attributed to the coexistence of high-saturation and low-saturation layers throughout the glass bead-filled layer, and a mathematical model is formulated, which is a development from the two-fractured-layer (TFL) model. It turns out that the mathematical model excellently describes the test result that the mixture-diffusion model fails to explain. In the numerical solution of this problem, the validity is confirmed of the use of the SIMPLEX method for the estimation of the effect of the numerical dispersion term of the third-order accurate finite upstream difference method, and of unknown parameters. 31 refs., 7 figs., 1 tab.

  2. Natural convection and radiation heat transfer in a vertical porous layer with a hexagonal honeycomb core. 1st Report. Numerical analysis; Honeycomb core de shikirareta enchoku takoshitsu sonai no shizen tairyu - fukusha fukugo netsu dentatsu. 1. Suchi kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Yamaguchi, Y; Asako, Y [Tokyo Metropolitan Univ., Tokyo (Japan). Faculty of Technology; Faghri, M [University of Rhode Island, Kingston, RI (United States)

    1997-06-25

    Combined heat transfer characteristics are obtained numerically for three-dimensional natural convection and thermal radiation in a long and wide vertical porous layer with a hexagonal honeycomb core. The porous layer is assumed to be both homogeneous and isotropic. The pure Darcy law for the fluid flow and Rosseland`s approximation for the radiation are employed. The numerical methodology is based on an algebraic coordinate transformation technique and the transformed governing equations are solved using the SIMPLE algorithm. The effect of radiation on the beat transfer characteristics is investigated in a wide range of radiation numbers and temperature ratios, for two Darcy-Rayleigh number values (Ra*=100, 1000), and for a fixed aspect ratio of H/L=1. The results are presented in the form of combined and convection heat transfer coefficients, and are compared with the corresponding values for pure natural convection. 7 refs., 12 figs., 1 tab.

  3. Heat and mass transfer in a reforming catalyst bed. Analytical prediction of distributions in the catalyst bed; Kaishitsu shokubaiso ni okeru netsu oyobi busshitsu ido. Suchi kaiseki ni yoru sonai bunpu no yosoku

    Energy Technology Data Exchange (ETDEWEB)

    Usami, Y [Tokyo Electric Power Co. Inc., Tokyo (Japan); Fukusako, S; Yamada, M [Hokkaido University, Sapporo (Japan)

    2000-01-25

    Heat and mass transfer characteristics within a reforming catalyst bed have been analytically investigated. A numerical analysis was carried out in a two-dimensional steady-state model of reforming catalyst layer. Reforming tube was filled with catalyst and the tube wall was uniformly heated, a mixture of steam and methane was reformed through the catalyst bed. Predicted temperature, formed gas composition, methane conversion rate, and heat transfer coefficient distributions in the catalyst layer showed good agreement with experimental data. The effects of space velocity, steam carbon molar ratio, and wall temperature on the heat transfer coefficient were analytically presented. From temperature and composition distributions simulated by two-dimensional analysis, the effects of these factors above mentioned and diffusion on the transport phenomena were qualitatively predicted. (author)

  4. Natural convection heat transfer in an anisotropic porous cavity heated from the side. 1st Report. Theory; Tosuiritsu ni ihosei wo yusuru howa takoshitsu sonai no sokuho kanetsu ni yoru shizen tairyu netsu dentatsu. 1. Riron kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kimura, S [Kanazawa University, Ishikawa (Japan). Faculty of Engineering; Okajima, A [Kanazawa University, Ishikawa (Japan)

    1998-02-25

    Natural convection heat transfer and flow structure in an anisotropic porous medium of square cavity saturated with Boussinesq fluid has been studied analytically and numerically. Based on asymptotic analysis three distinctive regimes are found depending upon the magnitude of permeability ratio K. In the vicinity of K=1 the average Nusselt number and fluid velocity are scaled with (KRa){sup 1/2} when either K or the Rayleigh number Ra is varied. In the limit of K {yields} 0 the heat transfer across the cavity approaches to the conductive state, and the convecting velocity, which is primarily in the vertical direction, is scaled with KRa. In the other end of spectrum, namely K {yields} {infinity}, the average Nusselt number and the convecting velocity are scaled with Ra and independent of K. The asymptotic results are verified with two-dimensional numerical calculations. The ranges of K of the respective regimes are also determined based on the numerical results. 12 refs., 12 figs.

  5. Analysis of transient thermal behaviors during the charging process in stratified heat storage tanks. 2nd Report. Effects of characteristic parameters; Seiso chikunetsu sonai deno juten katei no kato netsuteki kyodo ni kansuru kaiseki. 2. Tokusei inshi no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Yoo, H; Hong, H; Pak, E

    1997-11-25

    The mixing effect deteriorates performance in a stratified heat storage tank. In the present study, the effect of characteristic factors during the charging process was analyzed, based on the analytical solution in the previous study in which a strict boundary condition was applied and a mixing effect was included. Also, the usefulness of the solution was verified and the method of application to a real system was examined by comparing it to other experimental results. It was concluded that the depth of the perfectly mixed region is dominant unless the Peclet number is very small. 10 refs., 8 figs.

  6. Estimation of network structure for signal propagations by the analysis of multichannel action potentials in cultured neural networks; Ta channel katsudo den`i kaiseki ni yoru baiyo shinkei kairomonai kofun denpa keiro no suitei

    Energy Technology Data Exchange (ETDEWEB)

    Konno, N.; Fukami, T.; Shiina, T. [University of Tsukuba, Tsukuba (Japan); Jinbo, Y. [Nippon Telegraph and Telephone Corp., Tokyo (Japan)

    1998-07-01

    We have fabricated a 64 embedded microelectrode-array substrate using semiconductor technology to investigate the biological signal processing in brain by using cultured neural networks of fetal rat neocortex in vitro. We analyzed temporal and spatial neural networks patterns cultured on electrode-array substrate and attempted to examine the network structure constituted by neurons and the propagating patterns of electrical activity induced by the electric stimulus. In the experiments, each microelectrode size was 30 {mu}m squared and 150{mu} m spaced. For stimulation, one of the electrodes was selected and current pulses were applied through an isolated circuit. After the network was cultured in about 50 days, responses of neurons to electric stimulus were monitored extracellularly through 64-channel electrode array. Data recorded at each electrode consist of several spike trains generated by different cells. Therefore, these trains were separated by using wavelet transform and template matching for each electrode. We referred the temporal patterns of generated spikes for each electrode to as `spike sequences`. Next, we compared With the spike sequences among multichannel data and visualized the Cultured neural networks structure by identifying the directions of propagations and cell connections. 15 refs., 9 figs.

  7. FY 1999 report on the comprehensive analysis of the geothermal development promotion survey. Forth. No.C-3 Akinomiya area; 1999 nendo chinetsu kaihatsu sokushin chosa sogo kaiseki hokokusho. No. C-3 Akinomiya chiiki (Dai 4 ji)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-01-01

    As part of the geothermal development promotion survey, the comprehensive analysis was made on the survey of the existence amount of geothermal resource in the Akinomiya area, Ogachi town, Akita prefecture, which was conducted in FY 1999. In the evaluation of reservoirs, the following were carried out: comprehensive analysis of various data on the surface survey, well exploration, etc., which were stored in surveys from the primary to the forth, modification/construction of geothermal system models, numerical simulation using 3D models, etc. In the long-term jetting test, production/reduction tests were conducted using N9-AY-3 and N10-AY-8 as production wells and N8-AY-1 and N10-AY-6 as reduction wells. The results of the comprehensive analysis were outlined as follows. The distribution of high temperature zones promising as areas for geothermal development was grasped. The distribution of the main fracture structure underground was grasped. A total amount of 124t/h steam was confirmed by short/long term jetting tests. In the simulation of prediction of production, the result was obtained that there was potential power generation of 30MW in the Akinomiya area alone and 60MW both in the Akinomiya area and the Wasabizawa area. (NEDO)

  8. Thermal structure of east and Southeast Asia. Comparison of results of Curie point depth analysis and heat flow data; Totonan Asia chiiki no ondo kozo. Curie ten shindo kaiseki kekka to chikaku netsu ryuryo tono hikaku

    Energy Technology Data Exchange (ETDEWEB)

    Tanaka, A; Okubo, Y; Matsubayashi, O [Geological Survey of Japan, Tsukuba (Japan)

    1997-10-22

    This paper describes the distribution of Curie point depth and its characteristics determined from the spectral analysis of magnetic anomaly data in East and Southeast Asia. It also describes relationships between the Curie point depth and the other geophysical information such as topography, heat flow data and tectonics. The Curie point depths are shallower than about 10 km at volcanic and geothermal areas, between 15 and 25 km at island arcs and back arc rifts, deeper than 20 km at continents, and deeper than 30 km at trenches. The Curie point depth (Dc) estimated from the heat flow data can be expressed by Dc=k{theta}c/q where k is thermal conductivity, q is heat flow, and {theta}c is Curie point. Based on the Curie point depths obtained from Curie point depth analysis in the cross section of northeast Japan and the averaged values of heat flow at individual points, they are distributed along a line of k{theta}c=1500[Wm{sup -1}]. Values of k{theta}c are small near the axis of Japan trench and large in the northeast Japan. It is considered that local anomalies can not be grasped from the spectral analysis. 21 refs., 3 figs.

  9. Analysis of the behavior of orthogonal-core-type push-pull parametric transformer with iron and copper losses. Tetsuson oyobi doson wo koryoshita chokko jishinkei push pull parametric hen prime atsuki no dosa kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Tajima, K; Anazawa, Y; Kaga, A [Akita University, Akita (Japan). Mining College; Ichinokura, O [Tohoku University, Sendai (Japan). Faculty of Engineering

    1991-04-30

    This paper reports on a precise numerical analysis of operating characteristics of the push-pull parametric transformer of orthogonal-core type (proposed by the authors in the preceding papers) made in consideration of both the iron loss of its magnetic core and the copper loss of its windings. A model of magnetic circuit in the core is presented, which involves magnetic reluctances representing saturation characteristics of the core and magnetic inductances representing effects produced by hysteresis. Use is made of the function that expresses the saturation characteristics by a twenty-first power series of magnetic flux, the coefficient of each term being determined by use of experimental data on a specified sample of the magnetic core. Furthermore, recourse is had to the circuit simulator SPICE in order to analyze the operating characteristics of the transformer. Comparing results of the present analysis with experimental results, the following are noted: first, both output voltages and currents of windings of the transformer under the condition of parametric oscillation are calculated with sufficient accuracy; second, the present analysis is capable of evaluating the conversion efficiency of electric power and input power factor of the transformer, and of providing more accurate values of both voltage and current in the case of the maximum output under loading conditions as compared with the analyses so far presented. 8 refs., 11 figs., 2 tabs.

  10. Unsteady aerodynamic response of mistuned cascade to incoming wakes. 1st Report. ; Mistuning of stagger angle. Fukin prime itsu yokuretsu no hiteijo oto kaiseki. 1. ; Stagger kaku wo fukin prime itsuka shita baai

    Energy Technology Data Exchange (ETDEWEB)

    Funazaki, K [Iwate University, Iwate (Japan). Faculty of Engineering

    1991-09-25

    Interference between fan blades in a turbo-fan engine and struts also being a structural member may induce fan blade oscillation and noise, thereby presenting itself as an obstacle in development efforts. Therefore, this paper proposes a method to analyze unsteady aerodynamic responses of mistuned cascade with varied stagger angles, as well as elucidates the effects of the mistuned stagger angles by means of numerical calculations. The non-steady pressure distribution on the blades is affected by the mistuning, but its extent varies with phase difference in the incoming viscid wake. As its result, the non-steady lift acting on the blades varies with the mistuning. In this case, it is possible to reduce the size of the non-steady lift depending on the conditions of blade arrangement and incoming phase difference. The size of the non-steady lift under the same phase incoming condition has a close correlation with the steady lift. It was shown that the quasi-steady analysis is effective in the case of the same phase condition. 8 refs., 14 figs., 1 tab.

  11. Double linearization theory applied to three-dimensional cascades oscillating under supersonic axial flow condition. Choonsoku jikuryu sokudo de sadosuru sanjigen shindo yokuretsu no niju senkei riron ni yoru hiteijo kukiryoku kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Toshimitsu, K; Nanba, M [Kgushu University, Fukuoka (Japan). Faculty of Engineering; Iwai, S [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)

    1993-11-25

    In order to examine the aerodynamic characteristics of a supersonic axial flow turbofan realizing flight of Mach number of 2-5, the double linearization theory was applied to a three dimensional oscillation cascade accompanying a steady load in a supersonic axial flow condition and unsteady pneumatic force and aerodynamic unstability of oscillation were studied. Moreover, the values based on the strip theory and the three-dimensional theory were comparatively evaluated. Fundamental assumptions were such that the order of steady and unsteady perturbation satisfies the holding condition of the double linearization thory in a supersonic-and equi-entropy flow of non-viscous perfect gas. The numerical calculation assumed parabolic distributions of camber and thickness in the blade shape. As a result, the strip theory prediction agreed well with the value given by the three-dimensional theory in the steady blade-plane pressure difference and in the work of an unsteady pneumatic force, showing its validity. Among the steady load components of angle of attack, camber and thickness, the component of camber whose absolute value is large has the strongest effect on the total work. The distribution reduced in the angle of attack and camber from hub toward tip gives a large and stable flutter margin. 5 refs., 13 figs., 2 tabs.

  12. Report for fiscal 1982 on comprehensive survey for nationwide geothermal resources. Preparation of lineament density maps - radar image analyses - in north-eastern area; 1982 nendo zenkoku chinetsu shigen sogo chosa hokokusho. Lineament mitsudozu sakusei (radar gazo kaiseki (Tohoku chiiki))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1983-03-01

    Geological structure analysis maps and lineament maps were prepared on the north-eastern area and parts of the ancillary areas thereof by analyzing radar images of a 1 to 200,000 scale. With regard to the geological structures, analyses were performed by using as the original data the north look radar images for the three special geothermal areas to have prepared the geological structure analysis maps. The analysis of the radar images identified ground bed boundary lines in more detail than in the existing geological maps, and new discoveries were made available on faults. The lineament maps were compiled by implanting into respectively corresponding topographic maps the 24 N-S lineament maps made by the west look radar images for the whole surveyed areas, and the 16 E-W lineament maps made by the north look radar images for the special geothermal areas. Based on the clarity and characteristics deciphered on the images, the lineaments were classified into the major, minor, and subtle lineaments, which were indicated on the lineament maps. The lineaments were digitized by positions of the edge points, and the histograms and statistical tables were prepared by computer processing. (NEDO)

  13. Report for fiscal 1981 on comprehensive survey for nationwide geothermal resources. Survey on radar imaging method - geothermal analysis conception design (Appendix); 1981 nendo zenkoku chinetsu shigen sogo chosa hokokusho. Radar eizoho chosa (chinetsu kaiseki gainen sekkei furoku)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-10-01

    This paper explains different theoretical calculation methods used in gravity and magnetic force data analysis in geothermal resources survey. Analyzing the gravity data and the magnetic force data is capable of being applied with the potential theory. The increased speed and capacity of recent computers make easier the conversion of data into wave number zone. In relation with heavy magnetic force analysis, the paper explains such items as basic handling, IGRF remainder calculation, methods for topographic correction, conversion of primary and secondary polar magnetism and conversion of pseudo-gravity, coherent analysis, spectral ratio method, estimation of spectra by using MEM, spectrum moment method, heavy magnetic force simultaneously analyzing type modeling, constraint inversion method, and other methods. The paper further explains the sequential approximation method in magnetization calculation, methods for calculating equivalent magnetization distribution (methods by Bhattacharyya and Chan, and Nakatsuka), method for calculating equivalent magnetization distribution (method by O'Brien), primary and secondary polar magnetism conversion relation formulas, and theoretical calculation of spectral ratio. (NEDO)

  14. Solubilization of meso-carbon microbeads by potassium- or dibutylzinc-promoted butylation and structural analysis of the butylated products; Mesocarbon microbeads no butyl ka ni yoru kayoka to erareta butyl kabutsu no kozo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Murata, S.; Zhang, Y.; Kidena, K.; Nomura, M. [Osaka University, Osaka (Japan). Faculty of Engineering

    1996-10-28

    Tetrahydrofuran (THF) solubility and structure of the butylated products of meso-carbon microbeads (MCMB) were studied experimentally. In experiment, MCMB-A and MCMB-B obtained from two kinds of coal-tar pitch were used as specimens. MCMBs were butylated by BZ method using dibutylzinc-butyl iodide and KT method using K-butyl iodide-THF, and the butylated products were successfully obtained. The butylated products were investigated through THF solubility test, {sup 13}C-NMR measurement and gel permeation chromatography (GPC) measurement. As the experimental result, a BZ method produced the butylated products at a yield of nearly 170%, while a KT method produced them at a yield of nearly 130%. The THF solubility was estimated to be 89-97%. As the study result of molecular weight distributions by GPC measurement of solvent solubles, the molecular weight of raw material MCMB was estimated to be 590-770 in terms of polystyrene. 6 refs., 2 figs., 1 tab.

  15. Analysis of the relationship between the coal properties and their liquefaction characteristics by using the coal data base; Tanshu data base ni yoru tanshitsu to ekika tokusei no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kanbayashi, Y.; Okada, K. [Coal Mining Research Center, Tokyo (Japan)

    1996-10-28

    The relationship between coal properties and liquefaction or gasification characteristics was analyzed by using the analysis and test results and liquefaction characteristics in the coal data base. On liquefaction reaction, the close relation between an oil yield and coal constituent composition or a coal rank is well-known. Various multivariable regression analyses were conducted by using 6 factors as variables such as calorific value, volatile component, O/C and H/C atomic ratios, exinite+vitrinite content and vitrinite reflectance, and liquefaction characteristics as variate. On liquefaction characteristics, the oil yield of dehydrated and deashed coals, asphaltene yield, hydrogen consumption, produced water and gas quantities, and oil+asphaltene yield were predicted. The theoretical gasification efficiency of each specimen was calculated to evaluate the liquefaction reaction obtained. As a result, the oil yield increased with H/C atomic ratio, while the theoretical gasification efficiency increased with O/C atomic ratio. 5 figs., 1 tab.

  16. Three-dimensional analysis of internal flow characteristics in the injection nozzle tip of direct-injection diesel engines; Sanjigen suchi kaiseki ni yoru DI diesel kikan no nenryo funsha nozzle nai ryudo tokusei no kaimei

    Energy Technology Data Exchange (ETDEWEB)

    Ogawa, H; Matsui, Y; Kimura, S [Nissan Motor Co. Ltd. Tokyo (Japan)

    1997-10-01

    To reduce the exhaust emissions and fuel consumption of direct-injection diesel engines, it is essential to optimize the fuel injection equipment closely related to combustion and emission characteristics. In this study, three-dimensional computation has been applied to investigate the effects of the injection nozzle specifications (e.g., sac volume, round shape at the inlet of the nozzle hole) and needle tip deviation on internal flow characteristics. The computational results revealed that the effects of the nozzle specifications and needle tip deviation with a smaller needle lift on internal flow characteristics and a general approach to optimize the injection nozzle specifications were obtained. 3 refs., 10 figs., 1 tab.

  17. Fiscal 1999 geothermal energy development promotion survey. Report on survey of structural boring (No. B-7 Kuwanosawa area); 1999 nendo chinetsu kaihatsu sokushin chosa. Kozo shisui chosa koji oyobi kaiseki hokokusho (No.B-7 Kuwanosawa chiiki)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-09-01

    Borehole N11-KN-1 was digged and investigated for clarifying the geothermal structure of the Kuwanosawa area, with attention fully paid to the existing survey results. The hole is inclined, 1,802.30m deep in total, with a casing pipe installed down to the 1,101.76m level. Temperature was measured and electrical logging was performed at levels 410m, 1,110m, and 1,802.23m while the hole walls were still exposed bear. The maximum temperature of 161 degrees C was observed at the hole bottom, and the product of permeability - layer thickness transmission coefficient was described by 3.72 to 4.75 times 10{sup -1} darcy.m. The geothermal structures in presence in the south-western part of the survey area and along the Wasabizawa fault were made clear, and it was found that there exists no high-temperature water system in the vicinity of borehole N11-NK-1. As tasks for the future, it was proposed that a geothermal survey of the south-eastern part which includes borehole N57-YO-2 and a geochemical survey of fluids including hot spring water and surface be conducted. (NEDO)

  18. FY1992 research report on the evaluation and analysis of data collected in fuel cell power generation field test project; 1992 nendo nenryo denchi hatsuden field test jigyo ni okeru shushu data hyoka kaiseki kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    This paper describes the achievements in fiscal 1992 in the field tests on fuel cell power generation systems. The three locations subjected to the present analysis are all installed with 50-kW systems, whereas power generation efficiency of around 35% such as 35.3, 34.2 and 34.6% was obtained when the systems were operated at the rated output. When the load gets to below a certain load band (about 30 kW), the power generation efficiency decreases proportionately with the load. The overall efficiency including heat supply was 77.8, 70.7 and 80.3% respectively at about the rated output, showing a trend that the higher the thermal efficiency, the higher the overall efficiency. The case of generating both electric power and heat simultaneously has higher efficiency than the case of heat supply alone. The contribution rate of the fuel cell as a base load was 2.8, 4.6 and 13.6%, respectively. The system with as high value as 13.6% takes a power load following type operation mode, in which power is generated during a time band with large load during weekdays, and no power is generated at nighttime and in holidays when load is smaller, playing a role of peak responding power supply. Only one trouble has occurred in an auxiliary generator in the heat recovery system. (NEDO)

  19. Seismic tomography inversion in the case that sources and receivers are distributed out of a 2-D plane; Shingen jushinten ga nijigen heimennai ni nai baai no danseiha tomography kaiseki ni kansuru kosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Yokota, T; Miyazaki, T [Geological Survey of Japan, Tsukuba (Japan); Rokugawa, S; Matsushima, J [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Ashida, Y [Kyoto University, Kyoto (Japan). Faculty of Engineering

    1996-10-01

    In the case where sources and receivers are not distributed on a 2-D plane, seismic tomography inversion was studied. In tomography experiments, the existing wells are generally used. In such case, sources and receivers are frequently not distributed on a 2-D plane. The 2.5-D analysis method including 2-D structure and 3-D ray-tracing was thus developed. This method is featured by less memory necessary for ray-tracing calculation, and the same algorithm for velocity determination as 2-D analysis method. In previous methods, since analysis is generally carried out by projecting sources and receivers on a certain assumed 2-D plane, it can derive correct results in the case of constant velocity and straight ray, however, in the other case, it derives incorrect results. Application of 3-D tomography requires a large amount of memory, and falls into poor convergence because of various parameters. The 2.5-D analysis method can avoid these demerits. This analysis method was applied to the data obtained in Ogiri area, Kagoshima prefecture. 5 refs., 3 figs., 2 tabs.

  20. 2D inversion results and interpretation of CSAMT data in the Itaya prospect, Northern Honshu, Japan; Tohoku nanbu chiiki Itaya chiku ni okeru CSAMT ho nijigen kaiseki kekka to sono kaishaku

    Energy Technology Data Exchange (ETDEWEB)

    Yoshioka, K; Hishida, H; Katayama, H [Metal Mining Agency of Japan, Tokyo (Japan); Takakura, S [Geological Survey of Japan, Tsukuba (Japan)

    1997-05-27

    A two-dimensional analysis was carried out on electric exploration data obtained by using the CSAMT method in the Itaya prospect in the southern part of the Tohoku region in Japan. Considerations were given on mine exploration targets. Gold produced in this area is contained in stockwork or vein deposited quartz in silicified hydrothermal breccia. Therefore, the exploration targets are silicified rocks that show high resistivity. The field investigation using the CSAMT method was conducted by installing a dipole source of about 1.9 km as a transmission source at a location about 6 km apart from the investigation area, and by measuring transmission currents from 8 to 10A and ten frequencies from 4 to 2048 Hz. The two-dimensional analysis was performed by using programs of a forward calculation that used a finite element method and of an inversion calculation that used a least-squares method. Analysis utilizing resistivity of the boring cores made minimizing RMS misfit possible. As a result, estimations were made on distribution of silicification and claying alteration from the detailed resistivity distribution around the Itaya mine. 5 ref., 8 figs.

  1. Development of the EM tomography system. Part 2. Sensitivity studies of anomalous body by model studies; EM tomography system no kaihatsu. 2. Model kaiseki ni yoru ijotai no kando chosa kekka

    Energy Technology Data Exchange (ETDEWEB)

    Kumekawa, Y; Miura, Y; Takasugi, S [GERD Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Arai, E [Metal Mining Agency of Japan, Tokyo (Japan)

    1997-05-27

    A model analysis was used to investigate sensitivity of a two-dimensional structure on a resistivity anomalous body by using an electromagnetic tomography system. The resistivity model handled a three-dimensional structure. The model was prepared as a pseudo two-dimensional model in which a low resistivity anomalous body with 1 ohm-m was incorporated that has a basic length of 1000 m in the Y-direction in a homogenous medium having 100 ohm-m. As a result of the analysis, the following matters were elucidated: if a low resistivity anomalous body is present in a shallow subsurface, its impact starts appearing from lower frequencies than when the anomalous body exists only at a greater depth; if a high resistivity anomalous body exists, the detection sensitivity is lower than for the low resistivity anomalous body, but the analysis would be possible by using the phase because the phase has made a greater change; the source TxZ shows a change from lower frequencies than for the source TxX, and the amount of change is greater, hence the detection sensitivity on an anomalous body may be said higher with the source TxZ; however, for the anomalous body in shallow subsurface, the source TxX is more effective since it is not subjected to a too great impact at a greater depth. 5 refs., 7 figs.

  2. Fiscal 1998 survey report. Assessment and analysis of collected data in wind power generation field test project; 1998 nendo furyoku hatsuden field test jigyo ni okeru shushu data hyoka kaiseki chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Examination was made on wind conditions, power generating characteristics, and the reliability of a system by analyzing the operation record of the wind power generation equipment which was installed at Hiraizumi-cho, Nishi-Iwai gun, Iwate prefecture and at Misaki-cho, Miura-shi, Kanagawa prefecture. The equipment at Hiraizumi had a rated output of 490 kW, and at Miura 400 kW. The period of the examination was from April, 1998 through February, 1999, the items for data collection being the generator output, generated energy, average wind velocity, record of abnormality occurrence, and maximum wind velocity. At Hiraizumi, annual average utilization rate was 12.9%; annual average operation rate, 49.9%; average wind velocity, 4.6 m/s; and maximum wind velocity of the period, 31 m/s. At Miura, annual average utilization rate was 16.5%; annual average operation rate, 77.0%; and average wind velocity, 5.0 m/s. The utilization rate is desirably 17%. The top three abnormalities were drop in AC control voltage, actuation of main shaft brake and eddy current/actuation of open phase relay, accounting for 83.3% of the total abnormalities at Hiraizumi, while they were unbalance in current, grid drop and automatic unwinding of cable, accounting for 74.5% at Miura. (NEDO)

  3. FY 1994 report on the survey of geothermal development promotion. Investigative construction and analysis for structural boring (No. A-1 - Haneyama area); 1994 nendo chinetsu kaihatsu sokushin chosa. Kozo shitsui chosakoji oyobi kaiseki hokokusho (No. A-1 Haneyama chiiki)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-08-01

    For the contribution to elucidation of the geothermal structure in the Haneyama area, Oita Prefecture, the paper carried out the drilling of structural boring exploration wells, N6-HN-1 (1,605m) and N6-HN-2 (1,402m), and the well exploration. In the well exploration, the following were conducted: measurement of earth temperature, temperature recovery test, electrical log, simple water injection test, core/cutting observation, core test, powder X-ray diffraction analysis, physical property test, measurement of homogenization temperature of fluid inclusion, etc. In the temperature log and temperature recovery test, the terminal temperature at a 1,600m depth of N6-HN-1 well and at a 1,400m depth of N6-HN-2 well was 139.6 degrees C and 26.2 degrees C, respectively. The homogenization temperature of fluid inclusion was relatively higher, +70 degrees C to +100 degrees C, than that in the results of the temperature log, but was on the side of lower temperature, -30 degrees C to -100 degrees C, in a comparison with the saturated boiling curve of the earth surface and ground water level. Namely, it was thought that around the N6-HN-1 well, there used to exist the high temperature fluid of 250 degrees C or higher at the peak period of geothermal activities, but there only existed the geothermal water of approximately 140 degrees C at the present time. (NEDO)

  4. Improvement of life and NO{sub x} emission of radiant tube heating system by elastic-plastic creep analysis; Dansosei kuripu kaiseki ni yoru hosha dennetsukan kanetsu shisutemu no jumyo to NO{sub x} haishutsuryo no kaizen

    Energy Technology Data Exchange (ETDEWEB)

    Nakagawa, Tsuguhiko; Nuta, Kunihiro [Kawasaki Steel Corp., Okayama, (Japan). Mizushima Warks

    1999-03-10

    The radiant tube heating system has been widely applied to the furnaces which require isolation of the heating atmosphere from the combustion atmosphere. However, the conventional system has a short life and it is difficult to reduce NO{sub x} emission when it is used at a high furnace temperature under high combustion load, because the fuel is burned in a small space. In order to solve this problem, we have studied the cause of radiant tube life depends on the uniformity of the temperature distribution along the radiant tube. We have developed a new burner using a two-stage combustion method with exhaust gas self-recirculation. As a result, the file of the new system has been increased by a factor of two or more, and NO{sub x} emission has been reduced by 20 % from previous levels. This paper presents an outline of the elastic-plastic creep analysis and the new burner, and describes the effect of its use on system life. (author)

  5. X-ray diffraction study on microstructure of Li20-TeO2 glasses; Xsen kaisetsuho ni yoru Li{sub 2}O-TeO{sub 2} kei garasu no mikuro kozo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Iwadate, Y; Hattori, T; Nishiyama, S; Fukushima, K; Sugawara, Y [Chiba Univ. (Japan); Noda, K. [Japan Atomic Energy Research Inst., Tokyo (Japan)] Tatsumisuna, M. [Osaka Prefectural Univ., Sakai (Japan)] Umesaki, M. [Osaka Industrial Research Inst., Osaka (Japan)

    1998-07-10

    Li2O-TeO2 glasses attract attention because of unique properties such as high density, high refractive index, large dielectric constants and high infrared transmittance. The short range structures of two samples of Li2O-TeO2 glasses (15:85 mol% Li2O-TeO2 and 25:75 mol% Li2O-TeO2) were investigated by X-ray diffraction technique. Interpretation of the obtained radial distribution functions was performed on the basis of the strength comparison method. The following conclusions were obtained: Two types of Te-O bond lengths of 0.18nm and 0.20nm are found in TeO4 tetragonal bipyramid. As network forming units, the TeO4 tetragonal bipyramids and TeO3 trigonal bipyramids are observed. The TeO4 tetragonal bipyramid units are transformed into the TeO3 trigonal bipyramids through the transient species of polyhedral with non-bridging oxygen atoms with increasing content of Li2O. The lone pair of Te atom does not contribute to the formation of the glass network. 17 refs., 6 figs., 2 tabs.

  6. Borehole geophysics for delineating the geological structure in the Sakonishi prospect, the Hida area, Japan; Hida chiiki Sako nishi chiku ni okeru boring ko riyo butsuri tansa ni yoru chishitsu kozo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Katayama, H.; Hishida, H.; Yoshioka, K. [Metal Mining Agency of Japan, Tokyo (Japan)

    1997-05-27

    In order to discuss effectiveness of physical exploration in the Sakonishi prospect in the Hida area, physical exploration was carried out by utilizing bored wells. This area contains the Kamioka mine, one of the major base metal mines in Japan, where electrical exploration has been attempted several times in the past. No effective results have been obtained, however, because specific resistance contrast between mine beds and base rocks is too small, and the topography is too steep making site workability inferior. As part of the investigations on geological structures over wide areas, electrical logging (specific resistance and natural potential) was performed in fiscal 1995 and 1996 by utilizing the boreholes. Induced polarization logging was also conducted on the same boreholes. A traverse line on the ground with a length of 600 m and boreholes were used to execute specific resistance tomography. Clear extraction was possible on a fault structure which is thought related with limestone distribution and mine bed creation. However, it was not possible to identify upward continuity of zinc ores expected in the exploration. Because of not large a specific resistance contrast between zinc ores and base rocks, it is difficult to find mine bed locations only from the information on the specific resistance. 5 refs., 5 figs., 1 tab.

  7. Analysis of elasto-plasticity of a reinforced framework. Report 4. Framework reinforced by a wing wall made of post-placed concrete; Hokyo honegumi no dansosei kaiseki. 4. Atouchi sodekabe ni yoru hokyo honegumi

    Energy Technology Data Exchange (ETDEWEB)

    Takahashi, H. [Japan Testing Center for Construction Materials, Tokyo (Japan); Shimizu, Y. [Tokyo Institute of Technology, Tokyo (Japan)

    1995-09-01

    An elasto-plasticity stress analysis was performed on reinforcement using a wing wall made of post-placed concrete as an anti-earthquake reinforcement method for ferro-concrete structures. The analytical values were compared with experimental values, and discussions were given on reasonability of the analytic method. Wing walls made of post-placed concrete were inserted into a three-layered single-spanned model of a reinforced framework made of reinforced mortar (the wing walls being three kinds comprising 1/4 span portion in the first layer, and 1/4 portions in the first and second layers). With the columns loaded and retained with an axial force of 3 tf, a horizontal force was applied from one direction under an assumption that the force forms a uniform distribution. The analysis model was permuted with a wire material having one nodal point and three degrees of freedom as has been reported in the previous paper. The model was divided into the wing wall and the column, and the wing wall portion was permuted into a brace having pins at both ends so that the brace has the withstand strength equivalent to that of the wing wall. A tri-linear type or a bi-linear type was hypothesized for restoring force characteristics of each portion. According to the analytical result, the analytical values agreed relatively well with the experimental values in the load-deformation relationship and fracture conditions, verifying the reasonability of the analytical hypothesis. 5 refs., 5 figs., 3 tabs.

  8. Ultimate strength analysis of thin plated structures using eigen-functions. 3rd Report. Application to reliability analysis; Koyu kansu wo mochiita usuita kozobutsu no dansosei kaisekiho. 3. Shinraisei kaiseki eno oyo

    Energy Technology Data Exchange (ETDEWEB)

    Ueda, Y. [Osaka University, Osaka (Japan). Welding Research Institute; Masaoka, K.; Okada, H. [University of Osaka Prefecture, Osaka (Japan). Faculty of Engineering

    1996-12-31

    A reliability analysis was performed on ultimate strength of a hull by introducing reliability engineerings into the idealized structural unit method. Elements developed under the present study were applied to a model of an actual structure to indicate that even an analysis requiring much time under the finite element method can be performed in a short time and at high accuracy when this method is used. Analysis acted with bending moment and shear force simultaneously was performed on a model used as a structure in experiments carried out by Nishihara, assuming pure bending moment and longitudinal strength during slamming. Then, a reliability analysis was conducted on the same model based on this analysis method to investigate the ultimate strength. In an analysis of an ultimate strength when bending and shearing that assume slamming act upon simultaneously, axial force in the hull side decreases as loading increases, wherein how the shearing force increases can be identified clearly. Although existence of initial bends reduces the strength, the effect of variance in the vicinity of the average value on the reliability is rather small, while the effect due to variance in yield stress is greater. 27 refs., 14 figs., 4 tabs.

  9. Structural response analysis of very large floating structures in waves using one-dimensional finite element model; Ichijigen yugen yoso model ni yoru choogata futai no harochu kozo oto kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Fujikubo, M.; Yao, T.; Oida, H. [Hiroshima University, Hiroshima (Japan). Faculty of Engineering

    1996-12-31

    Formulation was made on a one-dimensional beam finite element which is effective in analyzing structural response of very large floating structures by modeling them on beams on an elastic foundation. This element allows strict solution of vibration response in the beams on the elastic foundation to be calculated efficiently for a case where mass and rigidity change in the longitudinal direction. This analysis method was used to analyze structural response of a large pontoon-type floating structure to investigate mass in the end part for the structural response and the effect of decay while passing the structure. With a pontoon-type floating structure, reduction in bends and bending stress in the end part of the floating structure is important in designing the structure. Reducing the mass in the end part is effective as a means to avoid resonance in these responses and reduce the responses. Increase in rigidity of a floating structure shifts the peak in quasi-static response to lower frequency side, and reduces response in resonance, hence it is advantageous for improving the response. Since incident waves decay while passing through the floating structure, response in the lower wave side decreases. The peak frequency in the quasi-static response also decreases at the end part of the structure in the upper wave side due to decay in wave force. 7 refs., 11 figs., 1 tab.

  10. FY 1998 achievement report on the R and D project on industrial science technology. Development of a functional biomolecule analysis/synthesis system; 1998 nendo kinosei seitai bunshi kaiseki gosei system no kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of developing the technology required for the biotechnology industry, a study was made on proteins having ligand recognition function, and the FY 1998 results were reported. In the technology development of a system for various/diversified syntheses of functional molecules, a system was designed/trially manufactured which enables the simultaneous synthesis of various biological/functional substances (compound library) at high-efficiency. In the development of the structure analysis system of ligand recognized proteins, a high-efficient biopolymer analysis system was developed which is based on TOF (time-of-flight) mass spectrometer and analyzes proteins produced by recombined genes quickly and precisely. In the R and D of functional molecules using ligand recognized proteins, the cloning was successfully made of the human estrogen receptor gene hER {alpha}, which is composed of 1,785 bp, from MCF-7-BOS. Further, the bioassay system for estrogen-like substances using MCF-7 cells was established. (NEDO)

  11. FY 1998 evaluation/analysis of the data collected in the field test project for photovoltaic power generation for public facilities; 1998 nendo kokyo shisetsu nadoyo taiyoko hatsuden field test jigyo ni okeru shushu data hyoka kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In the field test project for the photovoltaic power generation for public facilities, operational data were collected/analyzed on facilities at 158 sites installed from FY 1994 to FY 1997. As a result, the following were found out: Average values of the global radiation on an inclined surface, equivalent array operation time, equivalent system operation time, system operation time, inverter performance efficiency, inverter load factor, array power coefficient, and system power coefficient are 3.51 kWh/m{sup 2}/D, 2.72 h/D, 2.47 h/D, 10.3 h/D, 0.91, 0.30, 0.77 and 0.70, respectively. No deterioration with age was recognized in the 4-year operation data. As to the maintenance, the item, 'there are a lot of failures in the photovoltaic power system,' was 2% in rate. As to the inspection, times are mostly once a month. The annual maintenance cost was widely between about 360 yen/kW and about 30,000 yen/kW. Supposing annual expenses to be a total of capital expense, direct expense, and general administrative expense, the power generation cost dropped from approximately 240 yen/kWh in FY 1994 to 100 yen/kWh in FY 1997. (NEDO)

  12. Study on driving control behavior for lane change maneuver. Analysis of expert driver using neural network system; Shasen henkoji no driver sosa tokusei. Neural network system ni yoru jukuren driver no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Z; Okayama, T; Katayama, T [Japan Automobile Research Institute Inc., Tsukuba (Japan); Kageyama, I [Nihon University, Tokyo (Japan)

    1997-10-01

    In order to study driver steering control behavior for vehicle, a driver model for single-lane change maneuver is constructed by a neural network system concerned with the man-machine-environment system. And, using sensitivity analysis, it is found that the model represent the driver control behavior, and the relation between the driver control behavior and vehicle responses. The sensitivity analysis is also examined by applying to the 2nd order predictive driver model. The validity of the sensitivity analysis is confirmed. 5 refs., 8 figs.

  13. Study on driver`s stress in lane-change maneuver. Evaluation and analysis of heat rate change; Shasen henkoji no untensha no kinchodo kaiseki. Shinpaku hendo no gen`in bunrui to sono hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Sumida, K [Mitsubishi Motors Corp., Tokyo (Japan); Chikamori, S; Shimizu, Y [Seikei University, Tokyo (Japan)

    1997-10-01

    We measured the changes of heart rate in order to analyze the drivers` stress while they tried high speed lane-change on the stationary driving simulator. We concluded that the reasons of the chances were mainly dependent on the following two items. (1) mental pressure caused by the coming task of lane-change, (2) mental disturbance by the task to keep the vehicle inside the lane. By using the mental pressure and disturbance, we could evaluate the stability of the vehicles in lane-change maneuver. 3 refs., 11 figs.

  14. Data acquisition and analysis of passive solar cooling effects by storage of out door air in the middle of the night; Shin'ya gaiki chikurei ni yoru shizen reibo koka no jissoku to kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Inagaki, H.; Kasutani, A. [Komazawa Womens Junior College, Tokyo (Japan); Koizumi, H.

    1998-12-05

    Passive cooling by storing coolness of out door air in the middle of the night in rock bed is realized by air type solar system without any additional equipment. The advantage of the passive cooling is confirmed with measuring performance of the passive cooling effect of air type solar system equipped in our Komazawa Womens Junior College last year. (author)

  15. Experimental and analytical study on internal resonances in a cable-stayed beam model. Cableter dot hari model wo mochiita shachokyo no naibu kyoshin ni kansuru jikken to kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Fujino, Y.; Warnitchai, P.; Pacheco, B. (The University of Tokyo, Tokyo (Japan). Faculty of Engineering)

    1991-07-15

    This paper examines the dynamic characteristics on the model of the beam supported by one cable, the most simple type of cable-stayed bridge, with fundamental and important linear and nonlinear internal resonances from the experimental and analytical aspects. Vertical oscillation of the beam is able to cause parametric oscillation of the cable, so that dynamic phenomena which derive from internal resonance such as saturation of amplitude of vertical oscilation of the beam are observed experimentally. Based on the concept of local and global oscillation modes, a 3-DOF(degree of freedom) model is formulated considering the geometric nonlinearity of the cable. Then, a test of a small model, taking notice of linear compound of the cable and the beam as well as autoparametric compound by quadratic nonlinear terms, is conducted under vertical and horizontal harmonic excitations. After identifying the parameter of the model, the experimental value is compared with the analytical value. As a result, it is shown that both of them are highly consistent with each other. 16 refs., 9 figs., 2 tabs.

  16. FY 1994 report on the survey of geothermal development promotion. Complementary survey on the fracture system, etc. (Wasabizawa area); 1994 nendo chinetsu kaihatsu sokushin chosa sogo kaiseki hokokusho futai shiryo. Wasabizawa chiiki danretsu kei tou hokan chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-12-01

    For the contribution to elucidation of the geothermal structure in the Wasabizawa area, Akita Prefecture, survey by the paleomagnetic measurement and fracture system measurement was conducted of the borehole cores and specimens of outcrop granite obtained from boreholes of N6-WZ-3 and N6-WZ-4. In the survey, the following were carried out: measurement of the core fracture system of N6-WZ-3 (102-1,505m) and N6-WZ-4 (507-1,556m), paleomagnetic measurement of 9 outcrop granite specimens and 16 core specimens, and k/Ar age determination of 3 outcrop granite specimens. As a result of the paleomagnetic measurement of outcrop granite, the magnetization azimuth of the schistose granodiorite distributed in Kuwanosawa was regarded as almost NS. The measured magnetization azimuth of the core specimen obtained from the same rock mass was also made NS-based, and measurement of the fracture in the neighborhood was made. As a result, it was found out that the NNW system was dominant in dikes and that there was the NE system in most of the small geothermal channels. The fracture system of well tended to develop around the boundary between granite and metamorphic rock, and it was thought that this part could be a reservoir if temperature conditions are prepared. (NEDO)

  17. Ultimate strength analysis of thin plated structures using eigen-functions. 3rd Report. Application to reliability analysis; Koyu kansu wo mochiita usuita kozobutsu no dansosei kaisekiho. 3. Shinraisei kaiseki eno oyo

    Energy Technology Data Exchange (ETDEWEB)

    Ueda, Y [Osaka University, Osaka (Japan). Welding Research Institute; Masaoka, K; Okada, H [University of Osaka Prefecture, Osaka (Japan). Faculty of Engineering

    1997-12-31

    A reliability analysis was performed on ultimate strength of a hull by introducing reliability engineerings into the idealized structural unit method. Elements developed under the present study were applied to a model of an actual structure to indicate that even an analysis requiring much time under the finite element method can be performed in a short time and at high accuracy when this method is used. Analysis acted with bending moment and shear force simultaneously was performed on a model used as a structure in experiments carried out by Nishihara, assuming pure bending moment and longitudinal strength during slamming. Then, a reliability analysis was conducted on the same model based on this analysis method to investigate the ultimate strength. In an analysis of an ultimate strength when bending and shearing that assume slamming act upon simultaneously, axial force in the hull side decreases as loading increases, wherein how the shearing force increases can be identified clearly. Although existence of initial bends reduces the strength, the effect of variance in the vicinity of the average value on the reliability is rather small, while the effect due to variance in yield stress is greater. 27 refs., 14 figs., 4 tabs.

  18. Structural response analysis of very large floating structures in waves using one-dimensional finite element model; Ichijigen yugen yoso model ni yoru choogata futai no harochu kozo oto kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Fujikubo, M; Yao, T; Oida, H [Hiroshima University, Hiroshima (Japan). Faculty of Engineering

    1997-12-31

    Formulation was made on a one-dimensional beam finite element which is effective in analyzing structural response of very large floating structures by modeling them on beams on an elastic foundation. This element allows strict solution of vibration response in the beams on the elastic foundation to be calculated efficiently for a case where mass and rigidity change in the longitudinal direction. This analysis method was used to analyze structural response of a large pontoon-type floating structure to investigate mass in the end part for the structural response and the effect of decay while passing the structure. With a pontoon-type floating structure, reduction in bends and bending stress in the end part of the floating structure is important in designing the structure. Reducing the mass in the end part is effective as a means to avoid resonance in these responses and reduce the responses. Increase in rigidity of a floating structure shifts the peak in quasi-static response to lower frequency side, and reduces response in resonance, hence it is advantageous for improving the response. Since incident waves decay while passing through the floating structure, response in the lower wave side decreases. The peak frequency in the quasi-static response also decreases at the end part of the structure in the upper wave side due to decay in wave force. 7 refs., 11 figs., 1 tab.

  19. Analysis and evaluation for practical application of photovoltaic power generation system. Analysis and evaluation for thin substrate polycrystalline solar cells (alloy-base amorphous materials, PIN layers, strains in the interface, and effects of impurities); Taiyoko hatsuden system jitsuyoka no tame no kaiseki hyoka. Usumaku taiyo denchi jitsuyoka no tame no kaiseki hyoka (gokinkei amorphous zairyo pin kakuso kaimen ni okeru yugami fujunbutsu nado no eikyo)

    Energy Technology Data Exchange (ETDEWEB)

    Matsuda, A; Oeda, H; Yamasaki, S; Hata, N; Kondo, M; Toshima, Y; Sakata, I; Ganguly, G; Suzuki, A; Kamei, T; Okushi, H; Nonaka, H; Oda, N; Katagiri, H; Ichimura, N; Kokubu, K; Nakamura, K; Sekikawa, T; Yamanaka, M [Electrotechnical Laboratory, Tsukuba (Japan)

    1994-12-01

    Described herein are the results of the FY1994 research program for analysis and evaluation for thin film solar cells. The study on quantitative analysis of hydrogen atoms in a plasma determines quantity of hydrogen atoms in the plasma of monosilane diluted with hydrogen. It is found, contrary to expectation, that quantity of hydrogen atoms in the plasma decreases as it is more diluted with hydrogen. The study on light-induced degradation of the thin chlorine-base amorphous silicon films confirms that the plasma CVD method with 20% of dichlorosilane gas added to monosilane gas produces the thin amorphous silicon film 3 times faster than the conventional method. The thin film has essentially the same defect density as the one prepared by the conventional method, showing good photoelectric characteristics. The thin film of chlorinated amorphous silicon has a 1 digit lower defect density than the conventional one of amorphous silicon, as revealed by the accelerated degradation test with irradiated laser light and the constant current method to determine saturated defect density. 3 figs.

  20. Report on results concerning development of supermetal technology (FY2000). Innovative manufacturing technology for iron-based mesoscopic structured material; Super metal no gijutsu kaihatsu seika hokokusho (2000 nendo). Tetsu kei mesoscopic soshiki seigyo zairyo sosei gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    With the purpose of establishing innovative manufacturing technology for microstructure steel having a crystal grain size of about 1 {mu}m or less and a dimensional thickness of 1 mm or more by homogeneous multi-phase structure steel making, R and D was conducted, with fiscal 2000 results compiled. This year, R and D, using a multi-functional integrated test rolling mill, resulted in obtaining ultra-fine grained steel, a steel plate of 5 mm in thickness and 100 mm in width with grains of 1 {mu}m or less homogeneously in the thickness direction. In the investigation on the characterization by the steel plate sample thus obtained and on the method for preventing degradation in elongation, it was proved that an ultra-refined microstructure containing martensite or austenite as the secondary phase has a suppressing effect on the degradation in elongation. Further, examination was made on the widening of a process window for the practicability in the future and on the optimization of large strain deformation conditions. In the method of analyzing and evaluating ultra-refined microstructures, an analysis technology such as an in-lens SEM was proved to be extremely effective on the analysis of microstructures of supermetals created by large strain deformation as well as on the observation of microstructures of a submicron level. (NEDO)

  1. Hydrogen energy technology development conference. From production of hydrogen to application of utilization technologies and metal hydrides, and examples; Suiso energy gijutsu kaihatsu kaigi. Suiso no seizo kara riyo gijutsu kinzoku suisokabutsu no oyo to jirei

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1984-02-14

    The hydrogen energy technology development conference was held on February 14 to 17, 1984 in Tokyo. For hydrogen energy systems and production of hydrogen from water, 6 papers were presented for, e.g., the future of hydrogen energy, current state and future of hydrogen production processes, and current state of thermochemical hydrogen technology development. For hydrogen production, 6 papers were presented for, e.g., production of hydrogen from steel mill gas, coal and methanol. For metal hydrides and their applications, 6 papers were presented for, e.g., current state of development of hydrogen-occluding alloy materials, analysis of heat transfer in metal hydride layers modified with an organic compound and its simulation, and development of a large-size hydrogen storage system for industrial purposes. For hydrogen utilization technologies, 8 papers were presented for, e.g., combustion technologies, engines incorporating metal hydrides, safety of metal hydrides, hydrogen embrittlement of system materials, development trends of phosphate type fuel cells, and alkali and other low-temperature type fuel cells. (NEDO)

  2. Research and development of basic technologies for next-generation industries. Evaluation of 2nd phase research and development of technologies of mass culture of cells; Jisedai sangyo kiban gijutsu kenkyu kaihatsu saibo tairyo baiyo gijutsu. Dainiki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-03-30

    The project aims to establish basic technologies for the mass culture of cells which will enable a large, stable supply of fine chemical products whose industrial production the conventional technique of synthesis has failed to realize. In the 1st phase, cell stains were selected, a serumless medium was developed, basic culturing conditions were established, and substances production rates were improved, and the 2nd phase stands succeeding these 1st phase achievements. Toward the ultimate goal of establishing basic technologies for serumless high-density cultures for industrial use and technologies for isolating and refining useful substances, a small-scale optimum culture technique and a serumless culture technique are developed. Serumless cultures are developed for strains of man's lymphoid cells, cells deriving from bone marrow, epithelial cells, and hybridomas of man and mouse, all these sampled during the 1st phase endeavors. Success is attained in growing each cell strain on a scale of 1-10L to increase to 10{sup 7} cells/ml or more in population density. It is found that each cell strain produces useful substances, such as man's monoclonal antibodies and elements involved in the multiplication or differentiation of new cells. (NEDO)

  3. Fiscal 1998 research report. R and D on super metal (Al system mesoscopic texture-controlled material); 1998 nendo seika hokokusho. Super metal no gijutsu kaihatsu (aluminium kei mesoscopic soshiki seigyo zairyo no gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For development of Al materials with superior industrial characteristics (strength, corrosion resistance), this research has promoted development of large-size Al system materials with mesoscopic crystalline texture by high- strain accumulation control technology, and recovery and recrystallization control technology. In this fiscal year, (1) basic study on high-strain accumulation control technology, (2) study on a formation mechanism of ultra- fine crystal grains, and (3) development of a machining process were made. In (1), basic study on low-temperature rolling and study on rolling by rollers having different peripheral speeds were made. In (2), study on refining of recrystallized grains of 5000-base and 7000-base alloys was made. In (3), a low-temperature rolling equipment, and a ultra-rapid heating device were introduced. For the whole R and D project on super metal, the main research facilities such as a low-temperature rolling body for high- strain accumulation and a high-strain accumulative structure formation equipment (melt rolling equipment) for uniform nucleus formation in recrystallization were introduced to gain a firm foothold for the future application research. (NEDO)

  4. FY 1999 report on the development of technology to recycle architectural waste materials, glass, etc. Development of technology to recycle architectural waste materials; 1999 nendo kenchiku haizai glass nado recycle gijutsu kaihatsu seika hokokusho. Kenchiku haizai recycle gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-09-01

    Waste wood materials in the materials discharged from architectural disassembly were regarded as a potential wood resource, and the R and D of the technology to recycle these were conducted. Studies were made on the technology to finely grind waste wood materials, technology to compress/form waste wood materials and ground wood powder, verification of strength characteristics/dimension stability of the formed wood materials, etc. As to the wood materials which were badly degraded under ultra violet rays, they were coloring-processed by the steam treatment, and a possibility of coating substitution was confirmed. In relation to the technology to produce compressed wood materials, the optimization of heat treatment conditions was experimentally conducted. About the technology to give dimensional stability, dimensional stability was improved as a result of the improvement of chemicals feeding and the development of chemically processed drugs. In the development of light formed products, the board was successfully formed which is light in weight using lignocelluloses/inorganic hydrates and has the bending strength higher than that of the plaster board. In the development of interior materials, the technology was developed in which ground wood powder and thermo-plastic resin are mixed for die molding, and the OA floor using this was commercialized. (NEDO)

  5. Fiscal 1998 research report. Research cooperation on car energy and environmental technology based on ITS technology in China; 1998 nendo seika hokokusho. Chugoku ni okeru ITS gijutsu wo mochiita jidosha energy kankyo gijutsu ni kansuru kenkyu kyoryoku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This research aims at preparation of the car energy/environmental vision based on ITS (intelligent transport system) technology in China, enhancement of the transport planning ability of Qinghua University, and promotion of effective energy use in China. The following activities were carried out concretely: Survey on the actual traffic situation by Qinghua University, analysis of environment deterioration factors based on the survey result, estimation of a traffic environment improvement effect, study on traffic flow simulation technique based on traffic engineering, and study on traffic planning technique. As the diffusion strategy of ITS along Chinese circumstances, standardization and improvement of a multi- modal traffic system, navigation and its application system, and ETC (electronic toll collection) system are promising. Expectation for Japan and Japanese roles are as follows: Improvement of signal control, provision of information systems such as navigation, discussion on ITS technology such as ETC with Chinese specialists, and feasibility study on introduction of ITS technology for every Chinese district. (NEDO)

  6. Fiscal 1993 international joint projects under New Sunshine Program. Surveys of bilateral cooperation and solar energy technology; 1993 nendo kokusai kyoryoku jigyo nikokukan kyoryoku taiyo energy gijutsu ni kakawaru gijutsu chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    Concerning bilateral projects, overseas surveys were conducted about Japan-Australian and Japan-US technical cooperation. Concerning technological development, information was collected at the Solar World Congress of the International Solar Energy Society (ISES), and information was collected and opinions were exchanged at the 15th International Conference on Amorphous Semiconductors. A survey was conducted of Russia's development of solar cells and of their performance evaluation, and an overseas survey was conducted of the development of spaceborne photovoltaic power generation system practicalization technology. Surveys were conducted of international joint projects for the development of photovoltaic power generation system practicalization technology in Europe and the US. Overseas surveys were conducted of international joint projects concerning the development of photovoltaic power generation system practicalization technology, and a survey was conducted of the research and development of photovoltaic power generation in the US and of the state of introduction and diffusion of the same. A survey was also conducted of the state of element technology development for solar energy utilization in Europe. (NEDO)

  7. Achievement report for fiscal 1976 on Sunshine Program. Research on hydrogen production technology (Research on hydrogen production technology using thermochemical method); 1976 nendo suiso no seizo gijutsu no kenkyu seika hokokusho. Netsukagakuho ni yoru suiso seizo gijutsu no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1977-03-01

    This report covers part of the efforts to develop new hydrogen production technologies. Out of many processes involving Cu-halogen and alkali carbonate-iodine systems proposed as novel thermochemical processes, after they are compared with each other, a process of a sodium carbonate-iodine system with nickel in between is chosen. The chosen process is deemed to be the most excellent among the processes disclosed up to fiscal 1975. A feasibility study is conducted for the chosen process from the viewpoint of reaction rate, separation of reactive substances from each other, method for reaction manipulation, materials for device constitution, and thermal efficiency. As for the measurement of reaction rate for each unit reaction, basic reaction data are determined centering about the nickel iodide decomposition reaction and the sodium iodide carbonation reaction, and then reaction conditions which are roughly satisfying are obtained. A larger reaction unit is built in which the amounts of substances that come into reaction are approximately 10 times larger than those in the ones used in basic experiments. The progress of reactions is observed in the reaction unit, with the size enlarged in preparation for future construction of still larger reaction units. Methods for selectively isolating hydrogen out of gases ensuing from the decomposition are evaluated from the viewpoint of energy efficiency. In the selection of a reaction manipulation method, a single unit reaction process is advocated, and its thermal efficiency is estimated. (NEDO)

  8. FY 2001 report on the results of the follow-up study of development of the highly effective waste power generation; 2001 nendo kokoritsu haikibutsu hatsuden gijutsu kaihatsu no follow up gijutsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-03-01

    For the purpose of safe operation of the highly effective waste power generation pilot plant, confirmation of the performance of corrosion resistant super heater materials under the high temperature corrosion environment, collection of the data on environmental load characteristics in waste incineration, etc., the follow-up study was made. The results were as follows: The pilot plant was able to generate high temperature/high pressure vapor stably for approximately 13,500 hours in FY 2000 and FY 2001 and for approximately 27,800 hours in 4 years since the start of the demonstrative test. The planned performance of plant facilities was fully satisfied, and the performance of environmental load reduction was fully satisfied in standard values of soot/dust, SOx, NOx, hydrogen chloride and dioxins in exhaust gas. Concerning the super heater use developmental material, its durability of 5 years or more was confirmed. It was forecast that by using this, the heightening of temperature/pressure of boiler to 500 degrees C and 100 atmospheric pressure was achieved. Further, the useful information/knowledge on plant design were obtained such as the corrosion prevention technology for waste plant and the forecast of corrosion life of materials. (NEDO)

  9. Report on development of super metal technology and on result of innovative technologies for producing material for controlling iron-based mesoscopic structure; 1999 nendo super metal no gijutsu kaihatsu tetsukei mesoscopic soshiki seigyo zairyo sosei gijutsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    R and D was conducted for the purpose of 'establishing innovative technologies for producing microstructure steel having a grain size of approximately 1 {mu}m or less and a thickness of 1 mm through the formation of uniform multi-phase structure steel', with the results for fiscal 1999 summarized. In the subject year, a multi-functional integrated test rolling mill was introduced, with possibility validated for grain ultra-refinement by three types of large strain deformation, and with the effect of deforming conditions confirmed. As for the theoretical understanding of the mechanism of grain ultra-refinement and the establishment of its guiding principle, a progress was made in clarifying the ultra-refinement mechanism particularly by the strain-induced ultra-low-temperature diffusional transformation, revealing for example that micro-bands formed in deformed austenitic substructures provided the nucleation sites for ultra-fine ferrite. In the evaluation of properties on medium size samples prepared by the multi-functional integrated test rolling mill, remarkable improvement was confirmed in yield strength and tensile strength in martensitic steel or tempered martensitic steel as well as in ferritic steel. (NEDO)

  10. FY 1998 report on the results of the research and development of fundamental technologies for superconductor applications; 1998 nendo chodendo oyo kiban gijutsu kenkyukaihatsu seika hokokusho. Chodendo oyo kiban gijutsu keknyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-05-01

    As to the research on the superconductor manifestation mechanism, Y123 monocrystal which was partially replaced with Zn and Ni was manufactured, and it was made clear that the addition of these impurities greatly change anisotropy of superconductors. It was made clear that instability of lattice and magnetism is included in high temperature superconductor. Also made clear was an important role in the Nb/Ba replacement in existence of magnetic flux melting phase transfer and the magnetic field induced pinning effect. The manufacture of Y123 bicrystal membrane was successful by the liquid phase epitaxy method. The manufacture of non-copper base K-Bi-O new superconductor was successful by the ultra-high pressure synthesis method. The stabilized process was established for large size crystals of 15-20mm square in Y base and of 20-25mm square in Nd base. Also successful was the growth by LPE method of crystal with thick membrane of 20mm x 20mm x 10{mu}m on the MgO monocrystal substrate. The non-bicrystalization of Y base Nd base monocrystal was successful, and the peak phenomenon control in Jc-H was found out. By neutron irradiation, the acquisition magnetic field of 3.7T at 77K was achieved using bulk Y base 123 material with diameter of 3cm. And, the critical current density of 60,000 A/cm{sup 2} was achieved at 77K and 3T. (NEDO)

  11. Achievement report on development of global warming prevention related technologies in fiscal 1998. Development of environment harmonizing type dye finishing technology; 1998 nendo chikyu ondanka boshi kanren gijutsu kaihatsu seika hokokusho. Kankyo chowagata senshoku seiri gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The dye finishing operation in the textile industry places heavy load on the global environment. This paper describes the achievements in fiscal 1998 on development of process to eliminate the load. Low-temperature plasma treatment was introduced into the desizing and refining process to develop a continuous treatment process using no water and chemicals. Quality equivalent to that produced by conventional methods was obtained by applying an appropriate plasma treatment condition. The energy saving rate was presented by reduction by 84.3% converted into steam. Conventional dye finishing operation uses three to six times as much water as the cloth weight. The developed air flow treatment device reduced the water ratio to less than one. This is 86.0% reduction of energy consumption converted to steam. In removing pectic substance in cotton refining, no water, chemicals and steam were used, but were substituted by enzyme for continuous treatment. Good finishing result was obtained by performing bleaching and dying. Enzyme cost is an issue, but the cost would decrease if it is used in large quantity. A two-dimensional colorimeter (measures cloth color with high clarity and reproducibility) and an automatic dye preparing device (with high volume measuring performance) were developed. If the cost required for re-coloring under the present inspection method is converted into energy, it corresponds to 81.6% reduction. (NEDO)

  12. Fiscal 2000 achievement report on development of high-efficiency high-reliability welding technology through improvement on welding techniques; 2000 nendo yosetsu gijutsu no kodoka ni yoru kokoritsu koshinraisei yosetsu gijutsu no kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-04-01

    Efforts are made to develop a welding design support system capable of increasing reliability and enhancing welding efficiency. Activities are conducted in the six fields of (1) the development of welding process simulation models, (2) development of welded section structure simulation models, (3) development of simulation models for predicting welding caused deformation, (4) integration of the models, (5) analysis of the welding phenomenon, and (6) the elucidation of the defect generation mechanism. In field (1), efforts are made to develop an arc plasma model, a molten pool convective heat transportation model, and a welding process model. In the effort to develop an arc plasma model, studies are made about a stationary axisymmetric arc in its steady state and about a constitutive equation and computation algorithm for developing a model in which a tungsten electrode (cathode) and an arc plasma welding pool (anode) are integrated. Furthermore, the simulation outcomes are experimentally verified. Satisfactory models are obtained as far as qualitative properties are concerned. (NEDO)

  13. Report on results concerning development of supermetal technology (FY2000). Development of technology for aluminum-based mesoscopic-structured metallic material; Super metal no gijutsu kaihatsu seika hokokusho (2000 nendo). Aluminium kei mesoscopic soshiki seigyo zairyo no gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    With the purpose of developing high strength alloys through grain refinement, R and D was conducted, with fiscal 2000 results compiled. This year, using hot rolled plates and cold rolled plates of 5083 based alloys, research was carried out on an optimum warm processing method for forming microstructures. When 5083 alloys were rolled with a large reduction by one pass under a warm to hot temperature range, recrystallized grain structures were obtained having 3-4 {mu}m in the surface and 7-8 {mu}m in the center. The proof stress of these specimens was about 1.3 times as strong as an ordinary 5083 alloy soft material while the elongation was about the same. In the case of 7475 based alloys with Zr added in place of Cr, a warm rolling method, in which the alloys were heated to 350 degrees C and repeatedly reheated by one pass at that temperature, was found effective in forming micro-subgrain structures. By the warm rolling method in which roll temperature was suitably heated, it was made possible to steadily form thermally stable microstructures in 7475 based alloys. The 7475 based alloy plate having a microstructure is superior to an ordinary 7574 plate in resistance against stress corrosion cracking. (NEDO)

  14. Research and development of basic technologies for next-generation industries. Evaluation of 2nd phase research and development of technologies of mass culture of cells; Jisedai sangyo kiban gijutsu kenkyu kaihatsu saibo tairyo baiyo gijutsu. Dainiki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-03-30

    The project aims to establish basic technologies for the mass culture of cells which will enable a large, stable supply of fine chemical products whose industrial production the conventional technique of synthesis has failed to realize. In the 1st phase, cell stains were selected, a serumless medium was developed, basic culturing conditions were established, and substances production rates were improved, and the 2nd phase stands succeeding these 1st phase achievements. Toward the ultimate goal of establishing basic technologies for serumless high-density cultures for industrial use and technologies for isolating and refining useful substances, a small-scale optimum culture technique and a serumless culture technique are developed. Serumless cultures are developed for strains of man's lymphoid cells, cells deriving from bone marrow, epithelial cells, and hybridomas of man and mouse, all these sampled during the 1st phase endeavors. Success is attained in growing each cell strain on a scale of 1-10L to increase to 10{sup 7} cells/ml or more in population density. It is found that each cell strain produces useful substances, such as man's monoclonal antibodies and elements involved in the multiplication or differentiation of new cells. (NEDO)

  15. High performance milling techniques on molding dies. Development of new roughing techniques for large molding die; Plastic kanagata seisaku ni okeru kokoritsu kako gijutsu. Ogata plastic yo kanagata no keijo arakako gijutsu no kochiku

    Energy Technology Data Exchange (ETDEWEB)

    Otsuka, H; Kohama, S; Yamakawa, M [Mazda Motor Corp., Hiroshima (Japan); Egusa, H [Mazda Tooling and Engineering Co. Inc., Hiroshima (Japan)

    1997-10-01

    It needs long time to carve a molding die of bumper, which has a large and deep cavity. To shorten the milling time, we must make the machining more performable and accurate, and develop the new technology of CAM. In the milling sequence, Primary Roughing, which cut out 90% of the stock, should be more and more performable. So we established Tilt-Plunging and Curve-Fit Spiral Cutting techniques. These techniques will reduce lateral force to the tool, and make remains more small. With the techniques, we reduced both machining and NCdata preparing time to one half. 1 ref., 14 figs.

  16. Fiscal 1999 research report. Japan-U.S. comparative research on energy technology transfer and innovative industry support; 1999 nendo energy gijutsu wo chushinto shita gijutsu iten oyobi shinki sangyo ikusei no Nichibei hikaku ni kansuru chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Japan-U.S. comparative research was made on technology transfer and innovative industry support. The U.S. industry is greatly benefited by universities, which is consequently strengthening the international competitiveness of the U.S. economy. However, the partnerships between private firms and universities have no fixed pattern, and keep changing dynamically. Business incubators increased to 627 rapidly, and mainly supported by municipal governments and universities. The U.S. has a well-established mechanism of technology transfer, and has succeeded in many cases. Not only universities but also national laboratories commit to technology transfer to venture businesses, and after starting businesses, entrepreneurs can use various hedging systems which are expected to play a role promoting the future technology innovation. The U.S. also has many advanced areas for sustainable technology innovation, like Silicon Valley, and these areas contain many supporting bodies to help new businesses. The activity of these bodies is very suggestive to Japanese local platforms promoting technology innovation and new local industry creation. Study was also made on the possibility of technology exchanges with overseas advanced areas. (NEDO)

  17. FY 2000 survey on technical trends. Survey of technical trends on materials for heightening of performance for power generation facility use; 2000 nendo gijutsu doko nado chosa. Hatsuden shisetsuyo koseinoka zairyo ni kakawaru gijutsu doko nado chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    As to high performance/high function plastic materials used in power generation facilities, technical trends were surveyed on the recycle situation and recycle R and D to study the subjects to be solved. For wire covering materials, vinyl chloride, polyethylene, rubber, etc. are used, and the recycle of resin has not been advanced. Concerning the generation of waste plastic, the existence of a lot of plastics different in characteristics makes the recycle difficult. As to the use of waste plastic as resource, the material recycle and recovery of combustion energy are being made, but only a part of the plastic is reused as chemical raw materials. Relating to the R and D of the chemical recycle technology, there are sample studies on the pyrolysis of polyolefine, dechlorination of chlorine base resins, etc. Recently, the following have been made public: proposal of depolymerization monomer based on the cyclic monomer, study of liquefaction of approximately 100% of the thermosetting resin, approach to the solvolysis by supercritical solvent. (NEDO)

  18. NEDO Forum 2001. Session on industrial technology development (Future of thing making and manufacturing/processing technologies); NEDO Forum 2001. Sangyo gijutsu kaihatsu session (monozukuri seisan kako gijutsu no mirai)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-09-20

    The presentations made at the above-named session of the NEDO (New Energy and Industrial Technology Development Organization) forum held in Tokyo on September 20, 2001, are collected in this report. In a lecture entitled 'History of thing making,' the roles played by the now-defunct National Testing Laboratory and Industrial Test and Research Center were described and strategy for future development was predicted. In a lecture entitled 'Thing making and international apprentices competition,' apprenticeship training in practice at Denso Systems Corporation was presented. In a lecture entitled 'Key technology in thing making: outlook of metal mold industry,' shift in Japanese manufacturers' paradigm and change in metal mold marketing were explained, and the importance of reaching for the first position in the world in some specific fields or of expanding the scope of work in the entire value chain was stressed. In a lecture entitled 'Digital meister project: Aiming at amalgamation of IT (information technology) and MT (manufacturing technology),' database construction in the manufacture of metal molds, introduction of knowledge management systems, and development of CAD/CAM/CAE (computer-aided design/computer-aided manufacturing/computer-aided engineering) were discussed. (NEDO)

  19. Report on the survey in fiscal 1998. Systematic arrangement of environment technologies. 5 (Application of advanced technologies to environmental measures); 1998 nendo chosa hokokusho. Kankyo gijutsu ni kansuru taikeiteki seiri. 5 (sentan gijutsu no kankyo taisaku eno oyo)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Global environment handling technologies were investigated and put into order. Universities often make research and development on themes that can be handled at laboratory levels or by simulations. Development at a practical application level is few. Technological seeds may include manufacture of hydrogen by water and steam decomposition using solar energy, and new synthesizing reactions utilizing solar energy. Included may also be urban type wind power generation, superconductive energy storage systems, biomass utilization, and natural energy utilization. Furthermore, CO2 recovery and utilization by liquefaction, alkaline metal heat power generation, and pulse power technologies can also be found. Studies on applying advanced technologies to environmental measures include composite materials, membrane separation, photo-catalysts, optical elements, porous bodies, functional polymers, bio-reactors, electron beams, and aeration. Private corporations are working noticeably on prevention of fluorocarbon and dioxin emission, PCB treatment and waste water treatment technologies, catalyst application technologies, recycling technologies, and incineration ash treatment and utilization technologies. (NEDO)

  20. WE-NET substask 3. Conceptual design of total system (Safety measures and evaluation techniques); 1998 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET). 3. Zentai system gainen sekkei anzen taisaku hyoka gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Under the hydrogen-utilizing international clean energy system technology project WE-NET (World Energy NET Work) in fiscal 1998, researches and studies were conducted to clearly define safety designs and to improve on accident-and-safety analyses. In relation with system safety design, investigations continued into Japanese and foreign manuals and regulations about the handling of hydrogen and its peripherals, and safe design guidelines (draft) were compiled. Anomalies and accidents supposed to be typical of each of the systems concerned were investigated. As for accident-and-safety analyses, incorporation of a turbulence model was studied in relation to models representing the leak, evaporation, and diffusion of liquid hydrogen, and improvement was achieved when the scope of evaluation was enlarged concerning the hydrogen detonation model. The integration of the two models was discussed for the due evaluation of a series of processes of liquid hydrogen leak, evaporation, diffusion, and detonation. Calculation was performed for two assumed accidents, and the results were found to justify the integration of the two models. (NEDO)

  1. Achievement report on development of global warming prevention related technologies in fiscal 1998. Development of HFC-23 destruction technology; 1998 nendo chikyu ondanka boshi kanren gijutsu kaihatsu seika hokokusho. HFC-23 hakai gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-01-01

    HFC-23 is produced as a by-product during HCFC-22 manufacturing (produced at by-production rate of about 2%, whereas the reaction control has limitation in reducing the production). This is one of the substances subjected to the greenhouse effect gas reduction in the climate change framework treaty. This paper describes the achievements in 1998 on developing the HFC-23 destruction technology. High-temperature pyrolysis decomposes the substance into HF and CO2, which are given absorption treatment by water and alkali to make them harmless, and are recovered finally as calcium fluoride. An equipment having the treatment capability of 195 kg/h was constructed. Design was made on a facility capable of treating fluorine containing waste water at 3 t/h at maximum. Utilities consumed in a factory (industrial water, acids for neutralization, and alkali) are used effectively to identify the effect of reducing the treatment cost. Discussions were given from the safety aspect on facilities to prevent leakage of fluorine containing waste water being a harmful substance. Fabrication was executed on a full-size treatment testing equipment that can utilize the utilities in the factory effectively, and trial equipment operation was performed to arrange the system prepared toward the future tests and researches. (NEDO)

  2. Fiscal 2000 research report on the research on materialss with functions enhanced by microcapsulation technology; 2000 nendo microcapsul ka gijutsu ni yoru kokinoka zairyo gijutsu no chosa kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Research is conducted to create materialss equipped, thanks to microcapsulation, with a noise stopping function, vibration damping function, moisture adjusting function, electromagnetic shielding function, and the like, and usable as structural elements as is, that is, materialss known as 'interactive materialss.' For the development of an interactive materials, it is important to incorporate an element, which interacts with external energy, into the materials. A system using interactive materialss when embodied will ensure a safer and more comfortable daily life space. Taking this into consideration, in this fiscal year, studies are made about the technical representation of problems and troubles that jeopardize the safety and comfort of the daily life space, establishment of standards in this connection, interactive features to be realized using microcapsules, possibility of novel interactive characteristics using the same, techniques for the systematization of microcapsules as industrial materialss, techniques for assessing and analyzing materialss characteristics, simulation or the like of a safe and comfortable space using interactive materials-aided systems, and so forth. (NEDO)

  3. Collection of outlines of Sunshine Program achievement reports for fiscal 1988. Solar energy (Light utilizing technology and heat utilizing technology); 1988 nendo sunshine keikaku seika hokokusho gaiyoshu. Taiyo energy (hikari riyo gijutsu / netsu riyo gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-04-01

    Collected concerning the research and development of photovoltaic power systems are the basic research on solar cells; research and development of new-type photovoltaic power systems; and research and development of amorphous solar cells. Collected concerning the development of technologies for the practical application of photovoltaic power systems are the experiment, refining, and verification of low-cost silicon; experiment, fabrication, and verification of solar panels; research on the practical application of high-efficiency crystal-based solar cells; research and development of amorphous solar cells; research and development of solar cell evaluation systems; development of peripheral technologies; research and development of photovoltaic power-aided systems; research and development of centralized photovoltaic power systems; and development of photothermal hybrid type photovoltaic power systems. Collected concerning heat-utilizing technologies are the research and development of solar thermal electric power generation systems; research and development of solar air-conditioners and hot water supply systems; and development of practical application technologies for industrial solar systems. Collected also are international cooperative projects on solar energy technologies. (NEDO)

  4. Collection of outlines of Sunshine Program achievement reports for fiscal 1989. Solar energy (Light utilizing technology and heat utilizing technology); 1989 nendo sunshine keikaku seika hokokusho gaiyoshu. Taiyo energy (hikari riyo gijutsu / netsu riyo gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-04-01

    Collected concerning the research and development of photovoltaic power systems are the basic research on solar cells; research and development of new-type photovoltaic power systems; and research and development of amorphous solar cells. Collected concerning the development of technologies for the practical application of photovoltaic power systems are the research on the practical application of new-type solar cells; research on the practical application of amorphous solar cells; research and development of solar cell evaluation systems; research and development of peripheral technologies; research and development of photovoltaic power-aided systems; research and development of centralized photovoltaic power systems; and research and development of photothermal hybrid photovoltaic power systems. Collected concerning heat application technologies are the research and development of solar thermal energy systems; development of practical application technologies for solar systems for industrial use etc.; and cooperative projects between Japan and Australia etc. on solar energy technologies. (NEDO)

  5. Report on achievement for fiscal 1998. Global environment industry technology development promotion project (the advanced technology survey and research project); 1998 nendo seika hokoiusho. Chikyu kankyo sangyo gijutsu kaihatsu suishin jigyo (sentan gijutsu chosa kenkyu jigyo)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In order to structure innovative technologies to solve effectively the global environment problems, it is important to incorporate infra-structural technologies that have been achieved by universities and other research institutions. The fiscal 1998 project has commissioned 25 researches found superior from among research plans that have been invited during fiscal 1997. This paper enumerates the main themes including those under continued research. The research themes include: fixation of phosphor by using photo-energy, utilization of nitrogen fixing bacteria in rice plant roots for the purpose of carbon dioxide reduction, new functional solid ultra-strong acids for clean chemical processes, fixation of warming gases by using ultra critical fluid catalytic reactions, photo-catalysts having microporous structure, whose energy structure is controlled, waste water purification by using stimulation sensitive polymers, a practical and small high-speed environment purification system by means of a simple technology to cultivate high concentration bacteria of microorganisms, fundamental analysis of response to specific wavelength light in photosynthesized microorganisms, bio-remediation utilizing symbiotic systems of plants and bacteria, high efficiency catalysts purposed for total decomposition of water, and separation of carbon dioxide in deep sea bottoms by controlling hydrate crystal growth. (NEDO)

  6. Fiscal 1999 research report. Research on photonic measurement and processing technology (Development of high- efficiency production process technology); 1999 nendo foton keisoku kako gijutsu seika hokokusho. Kokoritsu seisan process gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 research result on R and D of laser processing technology, in-situ measurement technology, and generation and control technology of photon as laser beam source, for energy saving and efficiency improvement of energy-consumptive production processes such as welding, jointing, surface treatment and fine particle fabrication. The research was carried out by a technical center, 9 companies and a university as contract research. The research themes are as follows: (1) Processing technology: simulation technology for laser welding phenomena, synthesis technology for quantum dot functional structures, and fabrication technology for functional composite materials, (2) In-situ measurement technology: fine particle element and size measurement technology, (3) All- solid state laser technology: efficient rod type LD-pumping laser module, pumping chamber of slab type laser, improvement of E/O efficiency of laser diode, high-quality nonlinear crystal growth technology, fabrication technology for nonlinear crystals, and high-efficiency harmonic generation technology. Comprehensive survey was also made on high- efficiency photon generation technologies. (NEDO)

  7. Research and development of utilization technology of solar thermal energy system for industrial and other use. International joint technology development for solar energy utilization systems; Sangyoyo nado solar system jitsuyoka gijutsu kaihatsu. Taiyo energy riyo system kokusai kyodo gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Takita, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

    1994-12-01

    Described herein are the results of the FY1994 research program for international joint technology development for solar energy utilization systems. The joint study with an Indonesian research institute takes a model of lumber drying plant for the design and feasibility study. All the parts it needs are technically available in Indonesia, except carbon fiber sheets and electronic devices for controlling purposes. The drying cost is higher than that of a plant which procures charge-free wood fuel, but lower than that of a plant which procures fuel at 30$/t. A cacao drying plant model is also studied. The feasibility study shows that the initial investment for the blowing-up model is much higher by 60% to 100% than that for the conventional plant. Its fuel cost is lower by 11% than that of residual oil but 27% higher than that of wood. 4 figs.

  8. Achievement report for fiscal 1998 on the research and development of genome informatics technology. Development of energy use rationalization technologies; 1998 nendo genome informatics gijutsu kenkyu kaihatsu seika hokokusho. Energy shiyo gorika gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In the field of the analysis of gene expression frequency information, a novel glass coating method and a highly sensitive high-speed reading device are developed. Element technologies are studied for the development of a detection system capable of high-density high-speed reading of high-density DNA capillary array, with a long-chain DNA probe solidified therein. In the technology of transcription control information analysis, concerning the technology of transcription dynamics analysis using tagged transcription control factors, the construction of a model system protocol is studied, an automatic analysis system is developed, and an evaluation technology is also developed. Furthermore, a novel method is proposed, in which two specimens will be prepared, that is, a microbead coupled DNA specimen consisting of base sequences of all combinations of a certain chain length and a cDNA (complementary deoxyribonucleic acid) derived protein specimen, and DNA-protein complexes will be isolated for analysis bead by bead out of a liquid which is a mixture of the said two specimens. (NEDO)

  9. FY 1998 achievement report on the photon measuring/processing technology (R and D of the photon measuring/processing technology); 1998 nendo foton keisoku kako gijutsu seika hokokusho. Foton keisoku kako gijutsu no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In this project, the survey/arrangement were made of the trend of the recent technology such as photon (laser) measuring/processing/generation and a possibility of adopting the photon technology to the field except measuring/processing, to clarify technical subjects for establishing/commercializing the photon technology. Also for the purpose of reducing the energy cost by improving the performance of laser processing device, prolonging the life and reducing the operational cost, the development of the following were carried out: (1) high efficiency laser processing device. (2) high conversion efficiency laser diode. In (1), a laser generating device with Yb:YAG crystal as oscillating medium was trially manufactured, and the power of 35W and optical-optical conversion efficiency of 7.1% were obtained. A comparison was also made between Yb:YAG laser and Nd:YAG laser, and made it clear that as the industrial use high power laser, Nd:YAG laser has the advantage over the other. In (2), the development was made of technology for simultaneous uniform growth of more than one LD crystal wafers with high conversion efficiency and technology for evaluation. Namely, the high uniformity crystal wafer with variations among wafers of {+-}4% was obtained using the introduced high efficiency crystal growth device and high efficiency thin film evaluation device. (NEDO)

  10. FY 1992 report on the development of wood-waste/agri-waste pyrolytic gasification technology and utilization technology of gas product; 1992 nendo mokushitsukei haikibutsu no netsubunkai gas ka gijutsu to seisei gas no riyo gijutsu kaihatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    It is urgently necessary for the Philippines, which has no promising energy source to replace imported oil and lacks hard currencies, to reduce dependence on oil. The country, consisting of a number of islands, has faced many difficulties in construction of large-scale power transmission grids covering wide areas, which greatly retard development of local industries and dissemination of electricity. Therefore, great expectations have been placed on the techniques this project plans to develop for utilization of wastes as the energy source. This 5-year project (FY 1990 to 1994) is aimed at joint research and development of (thermal decomposition/gasification and power generation system) for transforming large quantities of wood-wastes/agri-wastes left unutilized into electric power, in which thermal decomposition/gasification of the wastes is combined with gas engine/power generator systems, and thereby to establish the systems suitable for the developing country. The major R and D results obtained in FY 1992 as the third year include on-the-spot surveys, tests for validating elementary techniques, designs and fabrication of part of the demonstration plant, and invitation of Philippine researchers to Japan. (NEDO)

  11. Worldwide clean energy system technology using hydrogen (WE-NET). subtask 9. Investigation of innovative and leading technologies; Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 9. Kakushinteki sendoteki gijutsu ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The WE-NET Project is a long-term project designed to ensure that an energy network technology using hydrogen becomes a reality not later than 2020. So the project cannot remain effective unless constant efforts are made to foresee future trends of technology and optimize it as the making of entire system for the project. In this project, new technologies which are not up for development are also investigated. Their feasibility should be studied, if necessary. From the foregoing point of view, new technologies are studied, collected and evaluated. Thus, useful suggestions and proposals may be made as to the course for the project to follow, as well as its research and development. Proposals highly evaluated up to FY 1995 are the hydrogen-oxygen internal-combustion Stirling`s engine, hydrogen production by solid oxide electrolysis, magnetic refrigeration technology for liquefaction of hydrogen, solar thermal hydrogen production with iron sponge technology, and hydrogen producing technology with photocatalyst. Conceptual investigation themes in FY 1996 are the hydrogen internal-combustion Stirling engine, solar thermal hydrogen production, phototransformation process, and high-temperature steam electrolysis. 9 figs., 54 tabs.

  12. Report on achievements in research and development in fiscal 1982 commissioned from the Sunshine Project. Development of a pit condition measuring technology (Development of a fracturing technology); 1982 nendo koseinai sokutei gijutsu no kaihatsu seika hokokusho. Fracturing gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1983-03-01

    Development was made on a measuring instrument intended of acquiring information inside geothermal wells under high temperature and pressure. Research and development was performed on a fracturing technology to enhance characteristics of wells. What have been performed as a result of the development of the in-pit measuring instrument are application of high temperature logging cables as a result of development of logging devices, and the fabrication of a digital data analyzer. In developing the logging and reservoir evaluating technologies, field test were performed by using a logger that uses neutrons, installed with a radiation source. In developing the fracturing technology, discussions were given on the equation of relationship proposed from the standpoint of fracture dynamics, and investigations were made on examples of values, in order to anticipate hydraulic fracturing pressure applied in fracturing. In the research of fracturing additives, discussions were given on gelling agents supported by use of water glass, and alumina prop agents. For the preliminary observation devices, a high-pressure low flow rate control device was installed on the high-pressure plunger pump, improvement was made on the composite centrifugal multi-stage pump. (NEDO)

  13. Fiscal 1997 report on technological results. R and D on micromachine technology (Development of micro-factory technology); 1997 nendo micromachine gijutsu no kenkyu kaihatsu seika hokokusho. Microfactory gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Activities are conducted in search of a micromachine system in which devices and equipment relating to machining, assembly, transportation, inspection, etc., in use for a manufacturing process are integrated in a narrow space, for the purpose of conserving energy through the miniaturization of the process of manufacturing small industrial products. With the activities in the two fields of (1) R and D of systematization technology (experimental system for micro fabrication/assembly) and (2) comprehensive investigation and research, examination on detailed specification for the experimental system was carried out, as were the examination of element technologies, element device operating experiments, technological investigation, etc.. In (1), sophistication of the element technologies was contrived that were required for realizing each experimental system, while the detailed specification of each experimental system was decided. Further, a part of the element devices was experimentally manufactured, with the basic functions verified. In (2), research studies were compiled on radio interference for example in the case where various devices were integrated and highly densified through the formation of a micro-factory; also compiled was a joint research with Agency of Industrial Science and Technology, a research conducted for the purpose of building the conception of the micro-factory. (NEDO)

  14. 1998 report on development of high-efficiency waste power generation technology. 2. Development of waste gasification and ash melting power generation technology; 1998 nendo kokoritsu haikibutsu hatsuden gijutsu kaihatsu seika hokokusho. Haikibutsu gas ka yoyu hatsuden gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In regard to waste gasification and ash melting power generation, a basic test and examination were conducted in fiscal 1998, with a full-scale development test made ready to start. In the development of technology for raising steam temperature, evaluation of high temperature corrosivity of SH materials and development of high-temperature dust removal system were carried out for example, as were development of dechlorination technology for thermal decomposition process and development of ceramic high-temperature air heater. In the development of technology to prevent exhaust gas reheating, preliminary examination was made on denitrification technologies using a catalyst with superior low-temperature activity. In the development of technology to reduce self-heat melting critical calorific value, investigation and basic test were carried out concerning a stable waste feed system, with a pilot test device experimentally manufactured and tested based on the findings. In the development of technology for reducing external fuel input, examination and analysis were performed on pretreatment techniques for waste plastics, with basic data obtained for a waste blowing system project. In addition, the thermal decomposition and combustion characteristics of waste plastics were clarified by the basic test. (NEDO)

  15. Report on the surveys in fiscal 1999. Surveys on foundations for establishing industrial technology strategies (Strategies by fields - Bio technology field); 1999 nendo sangyo gijutsu senryaku sakutei kiban chosa hokokusho. Bun'yabetsu gijutsu senryaku (Bio technology bun'ya)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In order to deal with strengthening of competitive power in the bio-technological field and social requirements thereon, it was intended to establish target setting, ways to achieve the objectives, and technological strategies including extraction of policy problems, by combining the wisdom possessed by industries, governmental organizations, and academic world. Section 1 describes the result of the surveys on establishing technological strategies by fields. America tackles importantly with matters related to life science. Japan is strong in fermentation technologies, bio-reactors, and enzyme engineering. Japan stands nearly equal, or is slightly inferior to America in clone livestocks and bio-sensors. Japan's competitiveness is very low in such advanced technology fields as gene therapies, gene combined agricultural products, bio-agricultural chemicals, gene exploration technologies, and gene diagnosis. Section 2 describes technological strategies in four fields. To explain, the improvement in foundations to raise efficiencies in research and development and industrialization processes, strategies to place importance on such industrial fields as realizing 'wishes of people for happiness of diversified nature', the improvement of the environment in which people and societies can enjoy benefits brought about by growth of the industries, and structuring of institutions to promote industrialization of bio-technologies for the nation as a whole. (NEDO)

  16. Fiscal 1993 international joint projects under New Sunshine Program. Surveys of bilateral cooperation and solar energy technology; 1993 nendo kokusai kyoryoku jigyo nikokukan kyoryoku taiyo energy gijutsu ni kakawaru gijutsu chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    Concerning bilateral projects, overseas surveys were conducted about Japan-Australian and Japan-US technical cooperation. Concerning technological development, information was collected at the Solar World Congress of the International Solar Energy Society (ISES), and information was collected and opinions were exchanged at the 15th International Conference on Amorphous Semiconductors. A survey was conducted of Russia's development of solar cells and of their performance evaluation, and an overseas survey was conducted of the development of spaceborne photovoltaic power generation system practicalization technology. Surveys were conducted of international joint projects for the development of photovoltaic power generation system practicalization technology in Europe and the US. Overseas surveys were conducted of international joint projects concerning the development of photovoltaic power generation system practicalization technology, and a survey was conducted of the research and development of photovoltaic power generation in the US and of the state of introduction and diffusion of the same. A survey was also conducted of the state of element technology development for solar energy utilization in Europe. (NEDO)

  17. Report on the invitation program for developing countries concerning technology promotion project of global environmental industry in FY 1997; 1997 nendo chikyu kankyo sangyo gijutsu suishin jigyo ni kakawaru chikyu kankyo kanren gijutsu kaigai kenkyusha shohei jigyo hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    In an effort to help preserve the global environment, International Center for Environmental Technology Transfer (ICETT) contributes to the solution of global environmental problems by promoting research exchanges with developing countries. As a part of this effort, ICETT hosted an environmental development researcher who visited Japan from the Institute of Environmental Research of Chulalongkorn University in Bangkok, Thailand. The invitation was extended at the request of NEDO. During the period of this investigation between September 16 and December 14, 1997, a photocatalyst was prepared and its performance was evaluated under the theme ``Application of photocatalysis to purification of atmospheric environment.`` At the same time, roadside test spots were inspected to study the practical application of optical photocatalysis. The visiting researcher also visited the National Institute for Resources and Environment to discuss with the staff of institute. This helped to deepen understandings of the state of air pollution problems confronting Japan, Europe, and North America, as well as issues related to the technologies that have been developed to solve these problems. The visiting researcher toured the RITE and examined Japan`s progress in the development of environmental control technology through joint research involving government, industry, and academia. At ICETT, the visiting researcher received training in Japan`s approaches to environmental problems in developing countries

  18. Fiscal 2000 report of investigation. Survey on technological trend concerning in si-tu remediation technology of contaminated soil; 2000 nendo osen dojo no gen'ichi joka gijutsu ni kakawaru gijutsu doko chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    In connection with contamination of soil and ground water, a survey was made on domestic patent information and existing literature or the like, in view of remediation technologies capable of in si-tu or on-site treatment, with arrangement and classification carried out by the method of cleaning contaminants. Arranged and classified were 209 pieces in the patent information, and 145 pieces in the literature from Geo-Environmental Protection Center, an incorporated body. In the methods of extracting contaminants from under the ground, the majority was the methods of pumping up ground water and those of excavating and removing. In the methods of cleaning contaminants, those of 'separation by heat', 'separation/decomposition method using water' and 'suction of gases' are found roughly in equal numbers. In the trend of the patent information, remediation technologies have started in 1990's, while bio-remediation as well as technologies of separation/decomposition through water is still increasing in the number of applications. Meantime, solidification technologies reached a peak around 1998 and have been decreasing in recent years. In the technologies of late, combinations of plural cleaning methods are also seen for the purpose of dealing with contamination with high to low concentration and compound contamination including organo-chloric compounds, heavy metals, etc. (NEDO)

  19. Fiscal 2000 report on result of R and D of nonmetallic material recycling promotion technology (demonstration test and research, total system technology); 2000 nendo hitetsu kinzokukei sozai recycle sokushin gijutsu kenkyu kaihatsu seika hokokusho. Jissho shiken kenkyu, total system gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    R and D was conducted on advanced recycling technology for aluminum and base metal/rare metal based materials, with fiscal 2000 results compiled. In the research of aluminum recycling technology, on a continuous fractional crystallization process and a purification by zinc removal process, the existing facilities for each demonstrated that they could simulate an aluminum scrap melting process capacity of 1,000 t/month, with a series of initial conditions determined. In the research of total system technology, combined test facilities were completed in which a purification process and a melt cleaning process were integrated. In the research of the recycling technology for base metal/rare metal based materials, a test was carried out by demonstrative facilities, with the aim of establishing copper regeneration technology in which high grade copper is produced using metal/resin based scraps such as shredder dust of automobiles as the materials. In structuring the total system technology, a preliminary survey and environmental load measures were carried out toward the practicability of a comprehensive copper metal collection recycling system. (NEDO)

  20. Research and development of the industrial basic technologies of the next generation, 'composite materials (quality evaluation techniques)'. Evaluation of the first phase research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'fukugo zairyo (hinshitsu hyoka gijutsu)'. Zenki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-03-30

    The results of the first phase research and development project for developing composite materials as the basic technologies of the next generation are evaluated, and the directions of the R and D evaluation for the second phase are set up. The efforts in the first-phase R and D project are aimed at development of methods for measuring carbon fiber surface structure elements; confirmation of the relationship between adhesive shear strength and active surface area; development of methods for determining fracture toughness by standard specimens; estimation of allowable void fraction for inter-layer shear strength; defect detection and quality evaluation by electromagnetic, ultrasonic, laser holography and AE methods; development of methods for detecting resin setting reactions during the molding processes; and understanding deteriorated mechanical characteristics of the resin-based composites by environmental factors, among others. The objectives of the first-phase project have been almost achieved. It is decided that the second-phase R and D project are directed to investigations on the relationship between surface properties of the fibers in the composites and fiber/matrix adhesion; researches on mechanical characteristics involved in fracture of the structural elements; evaluation of mechanical properties of the metal-based composites and investigations on detecting their defects; elucidation of the effects of environmental factors on their strength; and development of the techniques for integrating detection of molding-induced cracking and that of setting reactivity, among others. (NEDO)

  1. FY 1994 Report on the technical results. Research and development of micromachine technologies (Development of highly functional maintenance technologies for power plants); 1994 nendo micromachine gijutsu no kenkyu kaihatsu seika hokokusho. Hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

    This research and development project is aimed at development of the technologies for the micromachines provided with maintenance functions, e.g., for examination and maintenance of abnormal conditions in heat exchangers, piping systems or the like. The initial target is set at establishment of basic technologies for the micromachines, in consideration of the available technologies. The R and D activities are directed to (1) microcapsules for, e.g., micro power generators, (2) mother machines having controlling and instructing functions, (3) non-cabled examination modules, (4) cabled examination modules, and (5) total systems. The item (1) involves the micro power generators, and mechanisms of signal transmission, flaw finding and driving/suspension; the item (2) mechanisms of micro-optics and connection, group controlling, microbatteries, action type controlling, and artificial muscles; the item (3) expansion/contraction type transfer mechanisms, light energy supply, micro visual sensation, function connection, and concerted controlling; the item (4) tubular manipulators, and mechanisms of light-aided power generation and voltage elevation; and the item (5) maintenance and micromachine systems. (NEDO)

  2. Technique to increase performance of C-program for control systems. Compiler technique for low-cost CPU; Seigyoyo C gengo program no kosokuka gijutsu. Tei cost CPU no tame no gengo compiler gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Yamada, Y [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    The software of automotive control systems has become increasingly large and complex. High level languages (primarily C) and the compilers become more important to reduce coding time. Most compilers represent real number in the floating point format specified by IEEE standard 754. Most microprocessors in the automotive industry have no hardware for the operation using the IEEE standard due to the cost requirements, resulting in the slow execution speed and large code size. Alternative formats to increase execution speed and reduce code size are proposed. Experimental results for the alternative formats show the improvement in execution speed and code size. 4 refs., 3 figs., 2 tabs.

  3. FY 1994 report on the development of wood-waste/agri-waste pyrolytic gasification technology and utilization technology of gas product; 1994 nendo mokushitsukei haikibutsu no netsubunkai gas ka gijutsu to seisei gas no riyo gijutsu kaihatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    This 5-year joint project (FY 1990 to 1994) by Japan and the Philippines is aimed at joint research and development of (thermal decomposition/gasification and power generation system) for transforming large quantities of wood-wastes/agri-wastes left unutilized in the Philippines into electric power, in which thermal decomposition/gasification of the wastes is combined with a gas engine system. The field tests of the demonstration plant successfully produce power of 100 kW by burning only the low-calorie gas with a heating value near critical level for self-sustained combustion, obtained by gasification of sawdust by the fluidized gasifier and refined, attaining the object of the project. It is confirmed that a 200 to 300 kW class commercial plant can be designed and constructed basically by scaling up the 100 kW demonstration plant. The other data obtained by the field tests include those for improved operability and maintainability, gas purification, and reducing sizes of the facilities, including utility facilities. (NEDO)

  4. Fiscal 1997 survey report. `Ultra high electronic technology development promotion project` under consignment from NEDO; 1997 nendo kenkyu seika hokokusho. Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku jigyo `Chosentan denshi gijutsu kaihatsu sokushin jigyo`

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-05-01

    For the purpose of establishing ultra high technology of a next next generation level, the R and D was conducted of ultra fine processing process technology, technologies on limit measuring/analysis/control and new functional electronic materials. Themes of the R and D are electronic beam direct picture drawing system technology, ultra short wavelength electromagnetic radiation patterning/system technology, ultra fine sensitizing technology, ultra high accuracy shading system technology, ultra high tech plasma reactive measuring/analysis/control technology, ultra high tech cleaning basic technology, ultra high sensitivity medium technology, new functional element/film formation technology, etc. This R and D is a greatly influential basic research in the whole industrial field, and therefore, it is necessary that researchers standing foremost in each field of industry/university/government join the project and that various R and D infrastructures are made the most of. For this, the concentrated joint research method and the dispersed joint research method are combined, and the R and D is being conduced by equal partnership of each researcher. 421 refs., 823 figs., 91 tabs.

  5. FY 1999 report on the results of the development of technology of super metal. Development of nano/amorphous structure control materials; 1999 nendo super metal no gijutsu kaihatsu seika hokokusho. Nano amorphous kozo seigyo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of reducing the amount of energy consumption of transportation equipment such as automobiles, the development is made of innovative metal materials enabling the weight reduction of members relatively on the basis of simple chemical components and by making more substantial improvement of characteristics such as strength and toughness than in the existing metals. For it, the following R and D are conducted in which nano crystal structure and non-equilibrium phase structure such as amorphous are controlled to the limits: 1) particle micro-dispersion technology; 2) high speed super plastic formation technology; 3) high density energy utilization control technology; 4) control cooling technology. In 1), study was made of alloy components and effects of the creation process which are needed for achievement of the nano level of crystal grain. In 2), conditions of vapor deposition and production in high speed particle deposition method are optimally selected, and amorphous and nano crystal structures can easily be produced. In 3), high corrosion-resistant amorphous alloy bulk materials with 5mm thickness and 10mm diameter were successfully trially manufactured. In 4), a bulk amorphous specimen with 10mm outer diameter, 6mm inner diameter and 1mm thickness which was fabricated in the forging method indicated favorable magnetic properties. A method to make a specimen which is more stable is being studied. (NEDO)

  6. Report on achievements in fiscal 1999. Research and development of micro-machine technologies (development of micro-factory technologies); 1999 nendo micro machine gijutsu no kenkyu kaihatsu seika hokokusho. Micro factory gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    With an objective to achieve energy saving by micronizing the manufacturing processes of small industrial products, this research and development is intended to establish technologies to realize a micro-machine system, in which devices for processing, assembly, transportation and inspection used in the manufacturing processes are unified and incorporated in narrow spaces. Fiscal 1999 has performed, on the items of (1) research and development of the systematizing technologies and (2) comprehensive surveys and researches, with respect to the development of the first prototype system, and fabrication on the trial basis of devices to be mounted on the second prototype system, and discussions on further functional enhancement of the different devices. As a result in the research of the systematizing technology, the first prototype system was developed, that unifies the base unit fabricated in fiscal 1998, the electrolysis processing device, the fluid feeding device, the micro-arms, the coating device, the transportation device, and the environment recognizing device. The basic performances of the individual devices on the first prototype system were verified. Based on the result of this function verification, optimal design and fabrication on the trial basis of the devices mounted in the second prototype system were performed, and discussions were given on the further function enhancement in each functional device. (NEDO)

  7. Fiscal 1999 leading research report. Research on advanced functional material technology based on micro- capsule technology; 1999 nendo micro capsule ka gijutsu ni yoru kokinoka zairyo gijutsu no chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Study was made on production technology of the 5th- generation material 'eco-smart composite structure' based on micro-capsule technology. This material ought to have an intelligent function including self-detection and self- restoration of defects, environmental harmony, high strength and long life. At present, these demands are implemented by embedding a sensor, actuator and controller in structure, or optical fiber, shape memory alloy and computer chip in matrix, however, such complex material structure has adverse effect on environment. On the other hand, single structure material such as biodegradable polymer is unusable in severe environment such as the ocean and space. These problems can be resolved by combining composite material and micro-sphere technology, for example fiber-reinforced plastic (FRP) composite structure including micro-capsules with nano particles. According to targets, this material can have a self-restoration intelligent function, and other environment friendly functions such as easy decomposition, sound insulation, oscillation damping, electromagnetic shielding and hygroscopicity. (NEDO)

  8. Achievement report for fiscal 1996 on the research and development of micromachine technology. Development of advanced-function maintenance technology for power generation facilities; 1996 nendo micromachine gijutsu no kenkyu kaihatsu seika hokokusho. Hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Technologies for integrating functions are studied for a self-propelled surroundings recognition system that travels in a small-diameter tube at power generation facilities. Parameters are analyzed, and piezoelectric locomotion devices are reduced in size. A disk shape microantenna is experimentally built and evaluated, which is for realizing energy supply and communication by means of microwaves. Studies are conducted to improve the performance of optical energy transmission devices and to realize their systematization. Basic specifications are established for the embodiment of CCD (charge coupled device) microcameras to be installed. A high-efficiency, high-reliability micromachine system is constructed, in which multiple machines coordinate with each other for the exterior inspection of groups of small-diameter tubes. Devices which are capable of driving, deceleration, and propulsion prove to be feasible. Basic specifications are established for microconnectors to connect, separate, and combine multiple machines as occasion calls. Also discussed is the development of a micromachine for tube interior check and repair which operates making use of the inspection hole enabling tube interior check and repair without the need of disassembling the equipment to be repaired.

  9. FY 1998 annual summary report on photon measuring/processing techniques. Development of highly functional maintenance techniques for power generating facilities; 1998 nendo foton keisoku kako gijutsu. Hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The objectives are set to develop the techniques for non-destructive measurement of conditions of facility portions, especially those exposed to severe environments, e.g., elevated temperature and pressure, over a wide range; the techniques for measurement of leakage of, e.g., gases, at high sensitivity; the techniques of laser-aided welding and surface-modification treatment for the members exposed to severe conditions; and the techniques for generating photon beams of high quality and energy density as the tools therefor, in order to improve reliability and maintenance efficiency of power generating facilities. The R and D themes are microscopic processing technology: fabrication technology for functional micro-composite circuits; in-situ status measuring technology: gas concentration/component measurement technology, and photon wavefront compensation device technology; non-destructive composition measuring technology: high-sensitivity detection technology using short-wavelength photons; high-power all-solid-state laser technology: rod-type laser and slab-type laser; tightly-focusing all-solid-state laser technology: high-energy pulse, high-quality laser; and comprehensive investigation of photonics engineering: investigation for photon-applied measurement technologies. (NEDO)

  10. Report on achievements in fiscal 1998. Development of useful substance production technology utilizing gene combination technology; 1998 nendo idenshi kumikae gijutsu wo riyoshita yuyo busshitsu seisan gijutsu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In developing a useful substance producing technology utilizing gene combination technology, plants are taken as a kind of useful substance producing arena, wherein useful protein genes of animals are introduced and manifested in the plants. Thereupon, technological development was carried out for the following items with regard to mass production of useful substances that can be utilized industrially, such as cytokine, by means of plant and cell cultivation: 1. Development of a useful substance producing technology utilizing gene combination technology, and 2. Comprehensive surveys and researches. For the technology to obtain and design useful substance producing genes originated from animals, development of a technology to search and acquire useful genes originated from animals, and a design and modification technology for useful genes. For the technology to introduce genes into gene combined plants, creation of plants combined with useful substance producing genes, and development of an introduction technology using plant virus vector. For the technology to produce high-function chemical substances in the gene combined plants, establishment of technologies for mass breeding and activity analysis of gene combined plants and cultivated cells, and for extraction and refinement of useful substances from the gene combined plants. In the comprehensive surveys and researches, technologies were surveyed and items of information were collected inside and outside the country. (NEDO)

  11. Technology for bonding silicon nitride ceramics. Heat treatment technology to improve diffusion bonding strength; Chikka keiso ceramics no setsugo gijutsu. Kakusan setsugo kyodo kaizen no tame no metsushori gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Nakamura, M.; Shigematsu, K. [National Industrial Research Institute of Nagoya,Nagoya (Japan)

    1999-01-25

    Silicon nitride ceramics is a structural ceramics with excellent high temperature strength and tenacity, being expected of expansion of application as a high temperature material. However, its processibility is poor, and special sintering technique is required to manufacture members of complex shapes. Therefore, development has been made on a technology to manufacture bonded materials with high mechanical strength, by which diffusion bonding in high temperature nitrogen gas and heat treatment are combined, and crystalline structure in the vicinity of bonding interface is controlled. (translated by NEDO)

  12. Fiscal 2000 achievement report. Development of technologies for waste treatment and recycling (Development of technologies for appropriate treatment of air bags); 2000 nendo haikibutsu recycle kanren gijutsu kaihatsu seika hokokusho. Air bag tekisei shori gijutsu no kaihatsu nado

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    A centralized treatment process respecting environmental protection and safety for unused air bags aboard disused automobiles is developed. In concrete terms, a heating facility owned by Daicel Chemical Industries, Ltd., is used, which includes an apparatus for examining exhaust gas dioxins and an exhaust gas treatment apparatus and, with this facility, studies are made for appropriately treating waste gas and waste water to be generated when air bag modules undergo centralized heating. Endeavors in fiscal 2000 center about (1) the development of waste gas treatment technologies, (2) development of waste water treatment technologies, (3) chemical analysis of waste water sludge, dusts and air bag residues, and (4) the study of appropriate treatment of non-azide air bag modules. As to the development of exhaust gas treatment technology, it was proved that the exhaust gas treatment system consisting of secondary incineration furnace, exhaust gas cooling tower and bag filter worked effectively. (NEDO)

  13. Fiscal 1997 technological survey report. R and D on micromachine technology (Development of high functional maintenance technology for power station equipment); 1997 nendo micromachine gijutsu no kenkyu kaihatsu seika hokokusho. Hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Activities were conducted in search of micromachine technology for a high functional maintenance system that inspects and repairs abnormal conditions such as cracks in a heat exchanger or a piping system without disassembling it in a power generating station such as a thermal or nuclear power plant. The activities were proceeded in four areas of (1) experimental manufacturing of the system (an inline self-running environment recognizing system, an external inspection system for fine tube group, and a system capable of light internal operation such as welding), (2) R and D on sophistication technology for functional devices, (3) R and D on common basic technologies, and (4) comprehensive investigation and research. In (1), examination of detailed basic specifications was carried out, as were examination of element technologies, experimental manufacturing and operation test of element devices, and performance evaluation. Further, a part of element devices was made on an experimental basis, with the basic functions demonstrated. In the comprehensive investigation and research, a trend in the future maintenance technology in power generating equipment was obtained and pigeonholed. (NEDO)

  14. Fiscal 1999 research report. Research on photonic measurement and processing technology (Development of advanced maintenance technology for power plant facilities); 1999 nendo foton keisoku kako gijutsu seika hokokusho. Hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 research result on R and D of measurement technology, laser welding and surface treatment technology, and generation technology of photon beam, for improvement of the quality and maintenance efficiency for power plant facilities. In the study on fabrication of functional micro-composite circuits, the equipment for forming circuits on substrates by carrying particles with gas was developed whose geometric standard deviation is 1.17 for 26nm particles. In the study on gas concentration measurement technology, development of the variable-wavelength laser beam source for measurement, fabrication of thin films by epitaxial growth equipment, and computer simulation of sensitivities for quantum IR photo- detectors were promoted. In the study on photon wavefront compensation device technology, the technology for fabricating such device with (411)A surface orientations and asymmetric quantum well structures was developed. In the study on high-sensitivity detection technology using short- wavelength photon, to develop a high-energy resolution fluorescent X-ray detector, favorable electric properties of superconducting X-ray detecting devices were confirmed at nearly 0.1K. (NEDO)

  15. Research, development, and evaluation of basic technologies for next-generation industries. Technologies of mass culture of cells; Jisedai sangyo kiban gijutsu kenkyu kaihatsu hyoka. Saibo tairyo baiyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-03-01

    The project aims to establish basic technologies for the mass culture of cells by utilizing the features of animal cells, which will enable a large, stable supply of fine chemicals such as highly functional physiologically active proteins whose industrial production the conventional technique of synthesis fails to realize. For this purpose, efforts are exerted to select cells which are capable of producing target substances, to breed highly productive strains, to develop a serumless medium that satisfies demands for an all-purpose feature and heat sterilization, and to develop technologies of high-density culture and effective refining, etc. Some DNA (deoxyribonucleic acid) recombination technologies are also resorted to. As the result, a high-density culture of 2 times 10{sup 8} cells/ml has become available. Production is now feasible of various differentiation-inducing elements such as monoclonal antibodies with anti-HB virus activity, DIF, etc. Furthermore, cooperation with the Tsukuba University leads to the discovery of a novel vasopressor peptide (endothelin). The heat sterilization accepting serumless medium, which is put to practical use as the first of the kind in the world under this research and development project, contributes to the advancement of basic studies about cell biology. (NEDO)

  16. FY 1990 report on the development of wood-waste/agri-waste pyrolytic gasification technology and utilization technology of gas product; 1990 nendo mokushitsukei haikibutsu no netsubunkai gas ka gijutsu to seisei gas no riyo gijutsu kaihatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    It is urgently necessary for the Philippines, which has no promising energy source to replace imported oil and lacks hard currencies, to reduce dependence on oil. The country, consisting of a number of islands, has faced many difficulties in construction of large-scale power transmission grids covering wide areas, which greatly retard development of local industries and dissemination of electricity. Therefore, great expectations have been placed on the techniques this project plans to develop for utilization of wastes as the energy source. This 5-year project (FY 1990 to 1994) is aimed at joint research and development of (thermal decomposition/gasification and power generation system) for transforming large quantities of wood-wastes/agri-wastes left unutilized into electric power, in which thermal decomposition/gasification of the wastes is combined with gas engine/power generator systems, and thereby to establish the systems suitable for the developing country. The major R and D results obtained in FY 1990 as the initial year include negotiations with the Philippines, on-the-spot surveys for the demonstration plant sites and conditions, and conceptual designs of the demonstration plant. (NEDO)

  17. Survey of history/succession of industrial technology. Book of survey of the domestic industrial technology which contributed greatly to the industrial development; Sangyo gijutsu rekishi keisho chosa. Sangyo no hatten ni okiku kiyoshita kokunai sangyo gijutsu no chosahen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The paper surveyed a history of the industrial technology development which contributed to the innovation of technology in Japan for contribution to the future selection of technical themes and decision on developmental methods. In accordance with the increasing contribution of the Japanese industrial technology to scientific and economic activities in Japan and abroad, it is important to clarify a historical significance of the industrial technology and to make the most of results of the survey for the future succession/development of industrial technology. The survey focused on chemical processes brought up as the Japanese industrial technology which is regarded as world-famous and on the systematical study of the history of the Japanese scientific technology. Hereafter, this becomes a guiding principle for engineers. The paper arranged the survey results of production processes of 2-ethylhexanol, acrylic acid, acrylamide, and cresol/resorcinol, optical resolution process of amino acids, and flue gas desulfurization process. The paper also surveyed technologies of ammonia synthesis, coal liquefaction, high polymer film production and synthesis of medical raw materials. The results were obtained which are suggestive for developing creative/original technology. 210 refs., 93 figs., 49 tabs.

  18. Research and development of evaluation system for photovoltaic power generation system. Research and development on evaluation technology of photovoltaic power generating systems; Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu. System hyoka gijutsu no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

    1994-12-01

    This paper reports the study results on R and D of evaluation technology for photovoltaic power generating systems in fiscal 1994. (1) On preparation of test facility and measuring instrument, the pyrheliometer with a photovoltaic device as sensor was developed. (2) On collection and analysis of data, operation data of interconnection system, stand alone system, and water pump system were collected, and energy flow was analyzed. The following were also analyzed: time variation of a-Si solar cell modules, fluctuation correction factor of spectrum response, that of nonlinear response of crystalline solar cells, effect of solar radiation intensity and wind velocity on temperature rise of modules, and correction factor of DC circuit losses. (3) On on-site measurement technology, the array output measuring instrument was developed on the basis of capacitor charge system. (4) On simulation technology, simulation analyses of energy flow, optimum capacity of interconnection systems, correction factor of solar radiation, and capacity of array storage batteries were conducted. 3 figs., 6 tabs.

  19. Research and development of evaluation system for photovoltaic power generation system. Research and survey on test and evaluation method for BOS component devices; Taiyoko hatsuden system hyoka gijutsu no kenkyu kaihatsu. Shuhen gijutsu hyoka system no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

    1994-12-01

    This paper reports the study results on R and D of the evaluation method for BOS component devices in fiscal 1994. (1) On the study on requirements of BOS component devices for practical use, the study results on storage battery, inverter, protective device for system interconnection, and effective use means for storage battery were summarized. On the future device technology, it was clarified that the following value added technologies are promising: simple design of inverter circuit, cost reduction by common specification and mass production, and stabilization of voltage and compensation of momentary peak load by combining inverter with small-capacity storage batteries. (2) On the study on the performance test method for BOS component devices, basic characteristic (capacity, efficiency) test, PSOC charge/discharge cycle test, and accelerated life cycle test were performed for 4 kinds of new storage batteries developed by NEDO. The whole characteristic test results satisfied specifications, and long-term cycle test is in promotion for all new storage batteries. 3 figs., 4 tabs.

  20. FY 1991 report on the development of wood-waste/agri-waste pyrolytic gasification technology and utilization technology of gas product; 1991 nendo mokushitsukei haikibutsu no netsubunkai gas ka gijutsu to seisei gas no riyo gijutsu kaihatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-03-01

    It is urgently necessary for the Philippines, which has no promising energy source to replace imported oil and lacks hard currencies, to reduce dependence on oil. The country, consisting of a number of islands, has faced many difficulties in construction of large-scale power transmission grids covering wide areas, which greatly retard development of local industries and dissemination of electricity. Therefore, great expectations have been placed on the techniques this project plans to develop for utilization of wastes as the energy source. This 5-year project (FY 1990 to 1994) is aimed at joint research and development of (thermal decomposition/gasification and power generation system) for transforming large quantities of wood-wastes/agri-wastes left unutilized into electric power, in which thermal decomposition/gasification of the wastes is combined with gas engine/power generator systems, and thereby to establish the systems suitable for the developing country. The major R and D results obtained in FY 1991 as the second year include on-the-spot surveys, tests for validating elementary techniques, designs and fabrication of part of the demonstration plant, and invitation of Philippine researchers to Japan. (NEDO)

  1. Survey and research for the enhancement of large-scale technology development 1. Japan's large-scale technology development and the effects; Ogata gijutsu kaihatsu suishin no tame no chosa kenkyu. 1. Nippon no daikibo gijutsu kaihatsu to sono koka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1981-03-01

    A survey is conducted into the effects of projects implemented under the large-scale industrial technology research and development system. In the development of 'ultraperformance computers,' each of the technologies is being widely utilized, and the data service system of Nippon Telegraph and Telephone Public Corporation and the large computer (HITAC8800) owe much for their success to the fruits of the development endeavor. In the development of the 'desulfurization technology,' the fruits are in use by Tokyo Electric Power Co., Inc., and Chubu Electric Power Co., Inc., incorporated into their desulfurization systems. Although there is no practical plant based on the 'great-depth remotely controlled submarine oil drilling rig,' yet oceanic technologies and control methods are being utilized in various fields. The 'seawater desalination and by-product utilization' technologies have enabled the establishment of technologies of the top level in the world thanks to the resultant manufacture of concrete evaporator and related technologies. Eleven plants have been completed utilizing the fruits of the development. In the field of 'electric vehicle,' there is no commercialization in progress due to problems in cost effectiveness though remarkable improvement has been achieved in terms of performance. Technologies about weight reduction, semiconductor devices, battery parts and components, etc., are being utilized in many fields. (NEDO)

  2. Research and development of basic technologies for the next generation industries, 'recombinant DNA utilizing technology'. Evaluation on the research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'kumikae DNA riyo gijutsu'. Kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    Research, development and evaluation were performed with an objective of establishing the basic technology related to the recombinant DNA utilizing technology to create new microorganisms for processes in the chemical industry. The major achievements of the present research and development include establishment of the P450 gene manifestation system attributed from microsomes and mitochondria, and the success of the world's first simultaneous manifestation of P450 and reduction enzyme. Furthermore, the fused enzyme combining P450 and the reduction enzyme genetically was successfully manufactured ahead of the other countries, opening the way to industrializing the recombinant enzymes for use in bio-processes in the chemical industry. In creating a high-efficiency secretion recombinant bacillus subtilis stock, a bacillus subtilis host whose protease activity has been noticeably decreased was created. As an achievement of the research on the 'basic recombinant DNA technology', high-efficiency manifestation vector of medium level thermophile was created, and its usefulness was demonstrated. In addition, a host and vector system for high level thermophile was developed for the first time in the world. These achievements have opened the way to industrial utilization of the thermophilic bacteria. (NEDO)

  3. Fiscal 1996 survey report. `Ultra high electronic technology development promotion project` under consignment from NEDO; 1996 nendo kenkyu seika hokokusho. Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku jigyo `chosentan denshi gijutsu kaihatsu sokushin jigyo`

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-05-01

    For the purpose of establishing ultra high technology of a next next generation level which is a basic technology in the electronic information field, a key to the realization of the high grade information society and a common technology base giving marked influences to the wide range industrial field, the R and D was started of ultra fine processing process technology, technologies on limit measuring/analysis/control and new functional electronic materials. Themes of the R and D are electronic beam direct picture drawing system technology, ultra short wavelength electromagnetic radiation patterning/system technology, ultra fine sensitizing technology to draw pictures on metal and crystal surfaces using ultra short wavelength laser beams, shading system technology of shading mask to be used to the process of drawing ultra high accuracy and complicated figures, ultra high tech plasma reactive measuring/analysis/control technologies which become the base of ultra thin films and ultra fine etching using plasma, ultra high tech cleaning base technology, ultra high sensitivity medium technology, new functional element/film formation technology, etc. 137 refs., 358 figs., 38 tabs.

  4. FY 1998 annual summary report on photon measuring/processing techniques. Development of the techniques for high-efficiency production processes; 1998 nendo foton keisoku kako gijutsu seika hokokusho. Kokoritsu seisan process gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The objectives are set to develop the techniques for energy-efficient laser-aided processing; techniques for high-precision, real-time measurement to improve quality control for production processes and increase their efficiency; and the techniques for generating/controlling photon of high efficiency and quality as the laser beam sources therefor, in order to promote energy saving at and improve efficiency of production processes consuming large quantities of energy, e.g., welding, joining, surface treatment and production of fine particles. The R and D themes are microscopic processing technology: simulation technology for laser welding phenomena; microscopic processing technology: synthesis of technology for quantum dot functional structures; in-situ status measuring technology: fine particle elements and size measurement technology; high-power all-solid-state laser technology: efficient rod type LD-pumping laser modules and pumping chamber of a slab-type laser; tightly-focusing all-solid-state laser technology: improvement of E/O efficiency of laser diode, high-quality nonlinear crystal growth technology and fabrication technology for nonlinear crystal; and comprehensive investigation of photonics engineering: high-efficiency harmonic generation technology. (NEDO)

  5. Achievement report for fiscal 1981 on Sunshine Program. Practical application technologies for photovoltaic power systems (Development of peripheral technologies); 1981 nendo taiyoko hatsuden system jitsuyoka gijutsu seika hokokusho. Shuhen gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-03-01

    As for their outputs, the 3kW separately-excited and self-excited photovoltaic power plants yield daily averages of 7.8kWh and 6.9kWh, respectively, and this means that the self-excited type is inferior to the separately-excited type in terms of conversion efficiency. Automatic measuring devices for photovoltaic characteristics are installed at Sapporo, Sendai, Nagoya, and Miyazaki, which will elucidate regional difference in photovoltaic characteristics. A simulation of photovoltaic characteristics is performed and the resultant value is compared with the yield of an experimental 3kW system, and the result of the comparison is found reasonable. Cell arrays are subjected to investigation for configurations lowest in output loss for the respective shadow patterns. Harmonic characteristics are analyzed under plural-interconnection circumstances. Studies are made to miniaturize and simplify system constituents, and it is found that a 3-hour storage is proper for a 3kW-class storage battery. It is also found that a self-excited type suffers less voltage fluctuation in interconnected operation on a small short-circuit capacity system. Possibilities are that independent operation is started when output is larger than load, which is to be detected by checking changes in phase, frequency, etc. Array configuration, arresters, and shielding wires are taken up for the study of measures to cope with direct thunder strokes. (NEDO)

  6. Technological development report for fiscal 1993 on the woodwaste thermolysis/gasification technology and generated gas utilization technology; 1993 nendo mokushitsukei haikibutsu no netsubunkai gas ka gijutsu to seisei gas no riyo gijutsu kaihatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    The project is a joint effort of Japan and the Philippines to develop a thermolysis/gasification system, in which woodwaste now remaining unexploited in the Philippines is subjected to thermolysis/gasification and the resulting gas is used in a gas engine for the generation of electric power, in a 5-year period beginning in fiscal 1990. In this fiscal year, element technology verification tests are conducted, components of a demonstration plant are manufactured, and procurement is made as required, which completes all the tasks allotted to this fiscal year. All the constituents of the said demonstration plant fabricated or procured since fiscal 1991 are packed up and forwarded to Industrial Technology Development Institute (ITDI) of the Philippines, and engineering guidance is extended and test operations are carried out at the site of plant installation. In line with the said endeavors, on-site investigations are performed and researches are conducted together with ITDI scientists concerning the construction work and element technology confirmation. On the other hand, the Philippine side performs the second phase of civil engineering and construction carried over from the first phase. The demonstration plant is completed, adjustment and test operations are carried out, which means that the project is in progress as initially scheduled. (NEDO)

  7. Fiscal 2000 report of investigation. Survey on technological trend concerning in si-tu remediation technology of contaminated soil; 2000 nendo osen dojo no gen'ichi joka gijutsu ni kakawaru gijutsu doko chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    In connection with contamination of soil and ground water, a survey was made on domestic patent information and existing literature or the like, in view of remediation technologies capable of in si-tu or on-site treatment, with arrangement and classification carried out by the method of cleaning contaminants. Arranged and classified were 209 pieces in the patent information, and 145 pieces in the literature from Geo-Environmental Protection Center, an incorporated body. In the methods of extracting contaminants from under the ground, the majority was the methods of pumping up ground water and those of excavating and removing. In the methods of cleaning contaminants, those of 'separation by heat', 'separation/decomposition method using water' and 'suction of gases' are found roughly in equal numbers. In the trend of the patent information, remediation technologies have started in 1990's, while bio-remediation as well as technologies of separation/decomposition through water is still increasing in the number of applications. Meantime, solidification technologies reached a peak around 1998 and have been decreasing in recent years. In the technologies of late, combinations of plural cleaning methods are also seen for the purpose of dealing with contamination with high to low concentration and compound contamination including organo-chloric compounds, heavy metals, etc. (NEDO)

  8. Fiscal 1997 report of the development of high efficiency waste power generation technology. No.1 volume. Element technology development; Kokoritsu haikibutsu hatsuden gijutsu kaihatsu (yoso gijutsu kaihatsu). 1997 nendo hokokusho (daiichi bunsatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Following the previous fiscal year, the technology development was conducted of a high efficiency waste power generation system using general waste as fuel. In the development of high temperature high efficiency combustion furnace, a combustion test on the external circulating fluidized bed incinerator was made to obtain data on formation/decomposition of dioxins. Moreover, a combustion test was conducted using mock refuse, petroleum-derived waste and waste plastics, to confirm stabilized combustion characteristics and low pollution. In the development of a corrosion resistant superheater, made were the stress load high temperature corrosion test, study of intergranular corrosion by elements of impurities, etc. In the development of the environmental load reduction technology, conducted was the conceptional design of pulse plasma exhaust gas disposal equipment corresponding to the actual one. In the verification test in a pilot plant, the pilot plant passed the pre-use inspection and was completed in February 1998. In the study of an optimal total system, discussed were the data on the pilot plant verification test, measuring points, how to arrange them, etc. 2 refs., 88 figs., 50 tabs.

  9. FY 1999 report on the results of the R and D of genom informatics technology. Development of technology for rationalization of energy use; 1999 nendo genom informatics gijutsu kenkyu kaihtsu seika hokokusho. Energy shiyo gorika gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In this R and D, studies were made on the following: 1) development of a circular-shaped DNA-chip (DNA disk) and analysis of the gene expression pattern network by the DNA disk; 2) analytical system with DNA capillary array for mRNA expression profile; 3) development of protein probe technique for isolation of transcription factor complexes, and of evaluation technique for functions of transcription factors and their target DNAs; 4) transcription control information analytical technology - study of detection operational technology and preparation technology of transcription control information analytical specimens; 5) general R and D issues. In 1), development is conducted of DNA chips and a DNA chip system which makes use of DNA chips. In 2), development is made of a DNA capillary array and its accurate and high-speed reader to analyze expression profile of mRNA in various pathological processes of diseases of unknown etiology. In 3), as development of genom informatics technology, analysis of correlations is made, paying attention to transcription factors which become the key to gene expression. In 4), study is carried out of gene transcription control information high speed screening technology. (NEDO)

  10. International Clean Energy System Using Hydrogen Conversion (WE-NET). subtask 4. Development of hydrogen production technology; Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 4. Suiso seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This paper describes development of hydrogen production technology as a part of the WE-NET project. For the solid polymer water electrolysis method higher in efficiency and lower in cost than the previous methods, 5 companies have developed element technologies for improving electrolysis cells and synthesis technologies of hot solid polymer electrolyte based on each proper catalyst electrode production method. In fiscal 1996, the initial study on large-scale systems by middle laboratory cells was made as well as improvement of electrolysis performance by small laboratory cells and endurance tests. Among the previous methods such as a hot press method (bonding of an ion exchange membrane to an electrode), an electroless plating method (preparation of porous surface onto a membrane electrode assembly), a zero gap method (preparation of high-efficiency high-current density cells), and a sintered porous electrode method (carrying of the mixture of catalytic powder and ion exchange resin-dissipated solution onto sintered metallic porous electrode surface), the former two methods were adopted for development of bench-scale cells as effective promising methods. 192 refs., 183 figs., 108 tabs.

  11. Achievement report for fiscal 1996 on the research and development of micromachine technology. Development of microfactory technology; 1996 nendo micromachine gijutsu no kenkyu kaihatsu seika hokokusho. Microfactory gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The goal is to save energy and minimize the working space by constructing a manufacturing system comprising various micromachines with their dimensions fit for parts and products they handle. Development continues relative to microprocessing (electrolysis, and optical processing) and microscopic liquid operation (micropump, and part holding device). Under research in relation to the assembly process are a micro-arm to handle tiny parts and precision techniques for interfitting within a very small microfactory, a piezoelectric actuator for microscopic position adjusting, and ultraprecise microprocessing techniques indispensable for their manufacture. Also under research are the incorporation of optically driven microdevices developed before the preceding fiscal year into a microfactory and the study of microservo actuators capable of sophisticated positioning and velocity control. Concerning the microscopic transport system to deal with microscopic parts and products, studies are under way so as to embody systems driven by actuators of the electromagnetic type and electrostatic type. In this paper, reference is made to inspection techniques and comprehensive investigations. (NEDO)

  12. Fiscal 1999 leading research report. Research on advanced functional material technology based on micro- capsule technology; 1999 nendo micro capsule ka gijutsu ni yoru kokinoka zairyo gijutsu no chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Study was made on production technology of the 5th- generation material 'eco-smart composite structure' based on micro-capsule technology. This material ought to have an intelligent function including self-detection and self- restoration of defects, environmental harmony, high strength and long life. At present, these demands are implemented by embedding a sensor, actuator and controller in structure, or optical fiber, shape memory alloy and computer chip in matrix, however, such complex material structure has adverse effect on environment. On the other hand, single structure material such as biodegradable polymer is unusable in severe environment such as the ocean and space. These problems can be resolved by combining composite material and micro-sphere technology, for example fiber-reinforced plastic (FRP) composite structure including micro-capsules with nano particles. According to targets, this material can have a self-restoration intelligent function, and other environment friendly functions such as easy decomposition, sound insulation, oscillation damping, electromagnetic shielding and hygroscopicity. (NEDO)

  13. Report on research and development achievements in fiscal 1980 in Sunshine Project. Development of a technology to measure inside of wells (Development of a fracturing technology); 1980 nendo koseinai sokutei gijutsu no kaihatsu seika hokokusho. Fracturing gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1981-03-01

    This paper describes the achievements in fiscal 1980 in developing a technology to measure inside of geothermal wells, and of fracturing (to achieve enhancement and regeneration of well performance). Design and fabrication were completed on the in-tunnel sensor for a neutron/density logger. The sensor withstood use at a temperature as high as 275 degrees C. In logging and reservoir evaluation field tests, reliable data were derived even at a depth of 1,800 m and a temperature of 250 degrees C. Characteristics of response of radioactivity logging (neutron and density logging) to different igneous rocks were investigated by using rock blocks. For the fracturing facilities, improvements were given on transportation performance and installation workability of the preliminary observation device, by utilizing the experience obtained in the previous fiscal year. A composite (divided into two units) centrifugal multi-stage pumping device was developed so that a water injection test can be performed in a wide capacity range according to the intended wells, where nearly satisfying performance was derived. For the fracturing technology, in order for even small test pieces to be capable of evaluating fracture tenacity accurately with consideration on nonlinear behavior of rocks, elasto-plastic fracture tenacity tests were carried out with AE measurement being performed simultaneously. The paper also describes studies on fracturing fluids. (NEDO)

  14. Achievement report for fiscal 1998 on the technological development of super metals. Technology to create iron-based mesoscopic tissue controlling materials; 1998 nendo super metal no gijutsu kaihatsu seika hokokusho. Tetsukei meso scopic soshiki seigyo zairyo sosei gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Research and development has been carried out on super metals with an objective to draw out properties possessed by iron and steel materials to their maximum extent and further enhance their recycling performance to make them friendly with global environment. The final goal of this project is to 'establish a technology to create micro tissue steel having crystalline particle diameter of about 1 {mu}mm or less and size having thickness of 1 mm or more by making the steel tissues uniform and multiple in phase'. The studies in the current fiscal year were moved forward mainly on obtaining ultra fine crystalline particles of 1 {mu}mm or less, identifying the ideal large distortion processing conditions, and structuring the guidance principles for ultra-fine micronization of the crystalline particles by using large distortion processing. Discussions were also launched on further micronization of crystalline particles by optimizing chemical composition and on expansion of the process windows assuming practical application thereof in industrial scale. Furthermore, material property evaluation was also begun on ultra-fine crystalline particle materials of smaller than 1{mu}mm. As the mesoscopic structure analyzing technology for the ultra-fine crystalline particle materials, an in-lens resolution SEM was introduced, and the basic method was established. (NEDO)

  15. FY 1999 report on the results of the R and D of high efficiency clean energy vehicles; 2000 nendo choteisonshitsu denryoku soshi gijutsu kaihatsu seika hokokusho. Kiban gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Using the petroleum substituting clean energy, the R and D were conducted with the aim of developing vehicles which reduce the consumption of travel energy to 1/2 and the CO2 emission to 1/2 or below of those of existing vehicles. The FY 1999 results were summed up. As to the R and D of the hybrid power system, carried out were the prediction of fuel consumption performance by numerical simulation, evaluation of performance of new hybrid electric vehicles, etc. Concerning the R and D of high efficiency clean energy vehicles, the R and D of the following were reported from each of the makers: hybrid passenger car loaded with methanol fuel cells, hybrid passenger car loaded with ANG engine, hybrid truck loaded with CNG ceramic engine, hybrid truck loaded with CNG engine, hybrid bus loaded with LNG engine, and hybrid bus loaded with DME engine. Further, in the survey of synthetic fuels, the paper reported on the results of the evaluation of synthetic light oil engines and evaluation of characteristics of synthetic light oil. (NEDO)

  16. Survey and research on the effects of technological development. Annex (Tables of technology-related data); Gijutsu kaihatsu no koka ni kansuru chosa kenkyu. Bessatsu (gijutsu kanren data list)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-03-01

    Compiled into a report are the data about trends in Japan's research and development efforts broken down by industry covering a period of 1960-1980. The data items are quite versatile, including the number of companies engaged in researches and their rates, number of employees, total sales volume, profits through business, number of employees related to researches, number of dedicated researchers, number of dedicated researchers per 10,000 employees, disbursement of in-house research expenses, rate of personnel expenses to in-house research expenses, rate of disbursement of in-house research expenses to total sales volume, rate of disbursement of in-house research expenses to profits through business, disbursement of in-house research expenses per company, disbursement of in-house research expenses per dedicated researcher, in-house research expenses broken down by purpose (basic research, applied research, research for development), component ratio (basic research, applied research, research for development), number of dedicated researchers per speciality (total number, mathematics and physics, chemistry, biology, geology, engineering, civil engineering and construction, machinery and ship and aviation, electricity and communication, mining and metallurgy, textile, agriculture and forestry, fishery, stock-breeding and veterinarian, medicine and dentistry, pharmacy), number of technologies exported, total sum of export, etc. (NEDO)

  17. Overview of FY1997 human media technology R and D; 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu seido Shin energy Sangyo Gijutsu sogo Kaihatsu Kiko itaku jigyo. Human media no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper reports a summary of results in fiscal 1997 of research and development of human media technology. Fiscal 1997 launched design and trial fabrication of the following items: interface to improve efficiency and safety of plant operators, accommodation of multimedia contents to aid Kansei design, city development design aiding technologies using contents retrieval and presentation technologies and virtual reality, and empirical evaluation technologies for safety, comfort and convenience. Specific study assignments were extracted on a virtual media technology, a Kansei media technology and a knowledge media technology being three elementary technologies for human media to make clear the research and development approaches to be taken in the coming fiscal years. In addition, a human media technology committee, a research and development working group, and an investigation working group were established. Also launched were investigations on research trends in the human media technology, and investigative researches on contacts of information needs in industries with human media. 59 refs., 114 figs., 24 tabs.

  18. Rising economy of China and its effects on the industrial technology of Japan and other Asian countries. Chugoku no hatten to henbosuru Asia no sangyo gijutsu chizu (henkaku wo semarareru seisan gijutsu taikoku Nippon)

    Energy Technology Data Exchange (ETDEWEB)

    Otani, H [JGC Corp., Tokyo (Japan)

    1994-03-05

    Due to the rapid economy growth and industry development in China, the map of industry and economy in Asian countries has been greatly changing. The technology, which has supported Japan's industrial development, is characterized by the improvements of original technologies introduced from Europe and the United States. On the other hand, Korea has problems of creating the original and individual production technology and its basis. The industrial technology in China at present has problems which are accompanied with the conversion from the planned economy system to the market economy system. However, Chinese people having a tradition of 'link of three parts' seem to understand the Japanese style management policy well. Japan has played a role as 'world's center of manufacturing' by using its excellent production technology. In the future, China is considered to play a role as the 'world's center of manufacturing,' due to its huge domestic market, cheap and rich manpower, and excellent potential capacity of industrial technology. In Japan, it is emphasized that an industrial society system should be reconstructed, in which excellent individuality and talent can be made good use of. 6 refs., 1 fig.

  19. FY 1974 report. Study on hydrogen combustion technology; 1974 nendo suiso nensho gijutsu ni kansuru kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1975-03-01

    In the use of hydrogen as fuel, there is the problem on NOx emission. The amount of NOx emission is not as much as in the use of coal or oil, but is more than in the use of natural gas or town gas. However, it can be said that hydrogen is an ideal fuel if considered that it does not emit other air pollutants such as CO, HC and soot/dust which are usually associated with hydrocarbon base gas fuels, and also that hydrogen forms a circulation system which is ecologically sound. The flame of hydrogen is non-luminous, but the flame temperature is high. The formation of NOx depends strongly upon the flame temperature, and therefore, in the design of hydrogen burner, it is necessary to well mix it with air and to avoid the production of the local high temperature region. Further, when using hydrogen to large boiler, the combustion technology to control NOx reduction is needed. About the hydrogen flame, the matter to be noticed is an experimental result that NOx reduction was observed by adding trace ammonia to hydrogen gas. If this method can be successful, NOx can be reduced with no increase in fuel consumption. It leads to hydrogen's reaching a position of clean energy. (NEDO)

  20. Fiscal 1997 R and D project on industrial science and technology under a consignment from NEDO. R and D of the technology of accelerated formation of bio-functions (R and D of the technology of creation of novel advanced enzymes); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Kasokugata seibutsu kino kochiku gijutsu no kenkyu kaihatsu (shingata kokino koso sosei gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper describes R and D on creation technique of novel advanced enzymes. In fiscal 1997, a novel mutagenesis technique was developed to obtain more kinds of mutational genes by shuffling between clonal genes as compared with the previous homogeneous recombination. A genotype- and phenotype-linking technology was developed by expressing random motifs (peptide as components of the active site of protein) on bacteria, and by developing a single-motif protein library. Study was made on a selection system for functional molecules of catalytic activities in a gene level, and a selection system for function of signal transduction. Analysis and evaluation study on vitro experimental technology can be efficiently promoted by recognizing the fitness landscape of target protein molecules. As a result, instead of the conventional method which needs several cycles of mutation and screening of 3-4 week/cycle, an efficient method possible to obtain multiple mutants was established. Research work was also promoted by various organizations to develop an accelerated formation technology of bio-functions. 68 refs., 51 figs., 14 tabs.

  1. Technologies and techniques for analysis and use of genome information, 1997; Genome joho kaidoku riyo gijutsu no chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The paper clarified the whole image of cell functions by elucidating the function and manifestation control mechanism of genes existing in genomes, and the network of their interactions, and surveyed applicability of the useful functions obtained of cells and proteins to the industrial field. The survey was made from a viewpoint of the fields of both biology and information science. Especially, based on the function-known DNA base sequence database, the following technologies were surveyed: technology to predict the function of the function-unknown DNA base sequence, search/separation technology to acquire the genes to be functionally elucidated in a state of being suitable for manifestation, technology to get perfect proteins by effectively manifesting the genes to be functionally elucidated, and technology to analyze the function of the proteins obtained by manifestation of genes. Further, the International Symposium was held which is titled `Genome Research Opens a New World to Bioindustry (New Developments in Genome Informatics Technologies). With the future progress of technology to decipher and use genome information, the construction of much newer genome industry is anticipated. 165 refs., 44 figs., 10 tabs.

  2. Transition of wind power utilization technology in the 20th century; 20 seiki ni okeru furyoku riyo gijutsu no hensen

    Energy Technology Data Exchange (ETDEWEB)

    Ushiyama, I. [Ashikaga Inst. of Tech., Tochigi (Japan)

    2000-04-01

    Windmills are one of the oldest prime movers and have been used for more than 700 years in Europe. The transition from low speed windmills for grain grinding and water pumping to high speed wind turbines for electric power generation had occurred at the end of 19{sup th} century. This paper, at first, reviews the windmill technologies and the researchers before 20th century. Then describes the back ground of how the wind power generator has existed and how the four pioneers developed their wind power generator. The historical developments of windmills to wind turbines in this century are studied focusing mainly on Danish activities. Then, the effort of the development of large wind turbine such as Smith-Putnum's first MW machine in U.S.A. and other mammoth machine concept are introduced. The new concept machines such as Savonius and Darrieus wind turbines in 1920s to 1930s are also explained. Finally, the novel technologies of wind turbine covering larger machines, variable speed generators, special wing sections for wind turbines, theoretical analysis method of wind turbine performance, offshore wind turbines, and wind turbine control technologies are stated. (author)

  3. Phosphorus and nitrogen removal in waste water at small factory. Shokibo jigyosho ni okeru haisuichu no rin chisso shori gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Hirai, M. (National Institute for Resources and Environment, Tsukuba (Japan))

    1994-05-25

    For the purpose of preventing closed waters from eutrophicating, COD regulations and nitrogen and phosphorus waste water regulations are executed in Japan, but practically applicable techniques for this purpose are a few. Concerning technology for removing nitrogen and phosphorus in waste water, this paper describes the actual situation of two industries, electroplating and alumite processing, and applicable techniques. Among various nitrogen removal methods, the biological treatment method has been used practically in many cases and is applicable to practical use. While there are many kinds of physical and chemical treatment methods, applicable methods are limited. In removing nitrogen, the coagulating sedimentation method with Ca salt, Al salt and Fe salt is effective generally for orthophosphate. At electroplating factories, various forms of phosphorus and nitrogen compounds are used as plating chemicals. In treating waste water containing phosphorus, the coagulating sedimentation method is used most frequently. The oxidation + coagulating sedimentation method, the autolysis + oxidation coagulation method, and the evaporation method are effected, though the examples of their implementation are small in number. 15 tabs.

  4. Fiscal 1998 New Sunshine Program achievement report. Development for practical application of photovoltaic system - Development of thin-film solar cell manufacturing technology (Development of low-cost/large-area module manufacturing technology - Development of high-reliability CdS/CdTe solar cell module manufacturing technology); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Usumaku taiyo denchi no seizo gijutsu kaihatsu / tei cost daimenseki module seizo gijutsu kaihatsu (koshinraisei CdTe taiyo denchi module no seizo gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Cost reduction for the above-named solar cells is the aim of this effort. On the basis of the results of past studies, a technology is established of fabricating a thin CdS film by subjecting a CdS film to organometal pyrolysis, and this brings about a decrease in photoabsorption loss in the range of waves shorter than 500nm and a decrease in in-film reflection loss for an increase in short-circuit current density. A proximity sublimation method is used for CdTe film fabrication, which improves on film quality and film adhesion. These efforts result in the achievement of a conversion efficiency of 16.0% which is the highest in the world. Studies are promoted in a process nearer to the ultimate form, and a 30cm times 60cm large CdTe solar cell is fabricated on the basis of a patterning technique, and the product attains a conversion efficiency of 9.8%. In fiscal 1998, studies center about the establishment of a film fabrication process for a medium-are substrate and about the enhancement of its conversion efficiency, and facilities capable of dealing with large-area substrates are introduced and operated. In a typical achievement, a CdTe solar cell is experimentally fabricated in a process which is wholly under normal pressure, and the product with an aperture area of 1376cm{sup 2} exhibits a conversion efficiency of 10.5% according to JQA (Japan Quality Assurance Organization). (NEDO)

  5. Report on investigation in fiscal 2000 of industrial technology information; 2000 nendo sangyo gijutsu joho chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Pursuing the measures for how the national research institutions in Japan who have been made into independent administrative corporations should be positioned in maintaining and developing the industrial strength, investigations were performed with the points focused on measures taken in the United States to improve research environment, and the ways the national research institutions should be. The investigation results were summarized on the following four areas: 1) transition of research and development policies, 2) on the national research organizations, 3) structuring of database for researchers in universities and national research organizations, and 4) future challenges and suggestions. Item 1) has put the subject into order of the history of establishing legislations related to the U.S. technological policies, measures to promote research and development, budgetary management, grants, and preferential treatment. In Item 2), visits and investigations were executed on government-owned, government-operated laboratories and government-owned, contractor-operated laboratories whose operation patterns are different with each other. The results were put into order of institutions, roles, personnel systems, activation measures, joint research institutions, and finance. In Item 3), a data list was prepared on researchers relative to advanced technology programs contributing greatly to enhancing the competitive edge of U.S. corporations. (NEDO)

  6. Achievement report for fiscal 1997 on developing practical application technology for photovoltaic power generation systems under the New Sunshine Project. Development of technologies to manufacture thin film solar cells, development of technologies to manufacture low-cost large-area modules, and development of technologies to manufacture new type amorphous solar cells; 1997 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Usumaku taiyo denchi no seizo gijutsu kaihatsu, tei cost daimenseki module seizo gijutsu kaihatsu, shingata amorphous taiyo denchi no seizo gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Development will be made on high-performance a-solar cells as part of developing practical application technology for a-solar cells for electric power use. Development will be also made on a low-cost process technology. This paper describes the achievements attained during fiscal 1997. Quality improvement has been realized by using a high RF power hydrogen dilution process on a-Si films for front cells of lamination type cells. Four times faster film forming speed was obtained even by using the VHF plasma CVD process, with film quality equivalent to those made by using the conventional RF process maintained. By optimizing the light enclosing construction, the short circuit current was enhanced by over 20%. Discussions were given on forming homogenous a-Si films by optimizing the conditions for forming films on large-area substrates, which resulted in forming film of 30 cm times 40 cm size with good homogeneity at a film forming speed three times faster than the conventional speed. A surface electrode was formed successfully with good uniformity on a substrate with a size of 60 cm times 90 cm. Productivity greater by over three times the conventional productivity was achieved in patterning of transparent electrodes by using high-output laser. Simultaneous and collective patterning and very small and long size collective patterning were realized in a-Si film selection patterning by using the plasma CVD process. (NEDO)

  7. On-line sensor technology for food manufacturing industry. Shokuhin bun prime ya ni okeru on-line sensor gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Komiya, K. (Ajinomoto Co. Inc., Tokyo (Japan))

    1990-08-05

    This paper introduced the sensor technology for food manufacturing industry. If sugar concentration in main raw material is too high in the amino acid fermentation, control of the concentration is required because fungi growth is inhibited. A controlling method for sugar concentration was developed by using the correlation between consumption of NH {sub 3} for pH adjustment and sugar consumption in place of conventional analyzing method and was introduced in the gulutamic acid fermantation. BOD sensor was developed to enable the selective measurement of organic substances which can be processed by organisms, and measuring time was shortened from previous five days to 30 minutes. Since many organics absorb infrared ray, near infrared analysis is suitable for food analysis and on-line analysis has high possibility. When this method is applied to measure moisture in fishes and meats, continuous measurement can be made nondestructively and without contacting, and further the precision is {plus minus} 0.1%. Simultaneous multi-composition analyses are carried out by continuous spectrum and near infrared method using higher rate scanning. Sensor development for taste and smell has started. 10 refs., 4 figs., 4 refs.

  8. Fiscal 2000 achievement report. Research and development of fast-acting innovative energy-environment technology (Development of fast-acting high-efficiency solar cell technology - Development of high-quality ingot manufacturing technology); 2000 nendo shin energy sangyo gijutsu sogo kaihatsu kiko itaku kenkyu gyomu seika hokokusho. Sokkoteki kakushinteki energy kankyo gijutsu kenkyu kaihatsu (Sokkogata kokoritsu taiyo denchi gijutsu kaihatsu - Kohinshitsu ingot seizo gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Research and development was conducted of a technology for manufacturing an ultrathin polycrystalline silicon solar cell capable of efficiency enhancement and cost reduction earlier than the types of polycrystalline solar cells now available on the market. In this fiscal year, a silicon melt/solidification experimenting apparatus was built for manufacturing high-quality silicon ingots. Using an apparatus with its performance similar to the newly built one, a preliminary experiment was conducted involving high-purity silicon ingot manufacturing. In the experiment, boron was added to 75 kg of silicon for semiconductor devices so that its resistivity may be 0.5 ohm-cm. The silicon was melted in a quartz mold, and then subjected to unidirectional coagulation at 0.13 mm/min that started at the bottom to proceed upward. The result was a silicon ingot 44 cm times 44 cm times 17 cm (height). The ingot thus obtained exhibited 0.4-0.8 ohm-cm in resistivity distribution. Solar cells produced from the ingot showed a conversion rate of 16.9%. (NEDO)

  9. Fiscal 1999 research report on long-term energy technology strategy. Basic research on industrial technology strategy (Individual technology strategy). Electronic information technology field (Human process ware field for computers); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chsao hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku) denshi joho gijutsu bun'ya (computer kanren bun'ya no uchi, human process wear bun'ya)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 basic research result on industrial technology strategy of a human process ware (HPW) field on electronic information. Although the current HPW industry is not yet complete, various technologies concerned are being stored, and the HPW industry is expected as new major industry for home and personal information equipment. As factors hindering technological innovation in Japan, the incomplete market, poor cooperation between industry and government, ambiguous role of university, and poor standardization were pointed out. Technology trends were analyzed to extract seed technology fields from 3 viewpoints of mobile HPW available at any time, at any place and to anybody, HPW system capable of customizing every personal use, and HPW supporting development of a creativity. As general strategy, the technology seed chart and map of technical development targets for every HPW were prepared to conceive a route to practical use, and develop element technologies required for practical use, based on the future trend of the market. (NEDO)

  10. Report on survey/research on energy-related elementary techniques; Energy kanren yoso gijutsu ni kansuru chosa kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The survey/research project is implemented for establishing environment-compatible energy systems in urban areas by constructing wide-area heat supply networks to exchange energy among cities. This project studies, taking Kanagawa Pref. as the model area, distributions of unutilized energy sources, and possibilities of their utilization for heat supply. There are large quantities of unutilized energy, including waste heat from power plants, general works and cleaning works, and low-temperature waste heat from, e.g., sewage and pumping systems. The district air conditioning promotion areas are selected from those consuming large quantities of heat energy in the prefecture, and their characteristics are grasped. The effects of the networks on total energy consumption of the entire prefecture are estimated for the cases of introducing the district air conditioning systems or wide-area heat supply networks in these selected areas. Introduction of optimum advanced heat utilization systems in stereotyped areas is also considered, in order to predict the effects of introduction of wide-area heat supply networks. (NEDO)

  11. Fiscal 1997 project on the R and D of industrial scientific technology under consignment from NEDO. Report on the results of the R and D of technologies to invent original high-functional materials (technical development of materials to heighten efficiency of power generation facilities); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (hatsuden shisetsuyo koseinoka zairyo gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The paper described the fiscal 1997 results of the study of the condensation base precise structure control conducted as a technical development of materials to heighten efficiency of power generation facilities. Condensation base polymer is an important material which occupies most of the engineering plastics. The study is aimed at developing basic technologies on the molecular weight and regularity by which a remarkable improvement can be expected in performance of condensation polymerization/ring-opening polymerization polymer materials, polymerization catalyst which arbitarily controls the primary structure such as branch and end group structures, and development of the precision polymerization process. In the synthesis of ordered polymer by direct polycondensation, synthesis of ordered polyamide from asymmetric monomers is studied. In the synthesis of chemically selective polyamide by direct polymerization, polyamide with functional group is synthesized by polymerizing without protecting functional group the monomer with such functional group as causes side reaction in polymerization. In the synthesis of polyamide having the limited distribution of molecular weight, the molecular weight/distribution of polyamide are controlled by connectedly conducting polycondensation which is itself to be done successively. 91 refs., 72 figs., 43 tabs.

  12. FY 1999 research and development of technologies for commercialization of photovoltaic power generation systems. Development of technologies for production of thin-film solar cells and low-cost, large-area modules (Development of technologies for high-reliability CdTe solar cell modules); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Usumaku taiyo denchi no seizo gijutsu kaihatsu / tei cost daimenseki module seizo gijutsu kaihatsu (koshinraisei CdTe taiyo denchi module no seizo gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The research and development project is implemented for production of low-cost, large-area modules of CdTe solar cells by the high-quality film-making process and high-function patterning, and the FY 1999 results are reported. The research program for the large-area TCO film-making technologies involves investigations on improvement of SnO{sub 2} film quality by the mist method and continuous film-making, which lead to continuous, stable production of 34 substrates of low resistance of 9.7{omega} on the average. The program for production of the large-area, thin-film CdS/CdTe solar cells involves production of TCO and CdS by the mist method, and patterning of the laminated TCO/CdS film by laser scribing. The CdTe film is formed by the atmospheric pressure CSS method, and treated with CdCl{sub 2} to improve its crystallinity. The CdTe film is patterned by sand blasting, and provided with the carbon and silver electrodes by screen printing, to complete the cell. The process is totally effected at the atmospheric pressure, needing no vacuum device. The CdTe solar cell assembly (130 cells connected in series, opening area: 5,413cm{sup 2}), fabricated on a trial basis, achieves a conversion efficiency of 10%. (NEDO)

  13. New Sunshine Program for fiscal 2000. Development of photovoltaic system commercialization technology - Development of thin-film solar cell manufacturing technology - Development of low-cost/large area module manufacturing technology (Development of novel amorphous solar cell module manufacturing technology); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu, Hakumaku taiyodenchi no seizo gijutsu kaihatsu, Tei cost dai menseki mojuru seizo gijutsu kaihatsu (Shingata amorufasu taiyo denchi mojuru no seizo gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Research and development was conducted for the development of amorphous solar cell modules for power generation, high in performance and low in production cost. In the effort to develop high-performance solar cells, optimum device designs including an advanced light confinement structure or the like were studied, and a 25% reduction in the total power generation layer thickness and a 7% increase in efficiency in power generation were consistently achieved in an a-Si/a-SiGe solar cell. In the effort to develop low-cost process technologies, as the result of studies involving the optimization of high-speed film fabrication requirements such as hydrogen dilution and a high-speed/high-precision patterning method and the like, an initial conversion efficiency of 11.2% was attained, which was the world high for a 90 cm times 90 cm-large a-Si/a-SiGe solar cell. This being equivalent to a post-stabilization efficiency of 10%, the fiscal 2000 target was achieved. A solar cell module production cost assessment was performed based on the result, and a module cost of 133 yen/W (in case of 100 MW/year production) was realized, which again meant the achievement of the fiscal 2000 target. (NEDO)

  14. Fiscal 2000 pioneering research on the spintronic device basic technology; 2000 nendo spintronic soshi kiban gijutsu sendo kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Researchers specializing in technologies of magnetism or semiconductor were drafted from the industrial, official, and academic circles, who conducted hearings, patent investigations, overseas surveys, and the like, concerning spintronics. Collected in this report are the outline of the research and development of spintronic device technology, its current state and tasks and its importance from social and economic viewpoints, and the strategy that Japan should follow in the research and development of the technology. Important spintronic device technologies now attracting attention are mentioned below. The nonvolatile magnetic memory device MRAM (magnetic random access memory) is supposed to be the device which will enjoy practical application first among like devices. It is expected that the spin conduction device will lead to novel functions when the possibilities of the spin-dependent electric conduction phenomenon are further pursued. It is hoped that the spin optical device will be used as a light isolator, light spin logic device, field induced variable wavelength laser device, spin laser device, high-speed light switch, and so forth. It is necessary to watch the development of a spin-aided quantum computer which is still at the stage of basic study. (NEDO)

  15. Research on EBEP (Electron Beam Excited Plasma) applications; EBEP (denshi beam reiki plasma) no tekiyo gijutsu ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Yanase, E.; Ryoji, M.; Mori, Y.; Tokai, M. [Kawasaki Heavy Industries, Ltd., Kobe (Japan)

    1996-04-20

    Research and development is actively conducted on machining technologies using plasma in various fields, with studies energetically pursued on etching techniques or those of forming a thin film by the use of high frequency and microwave plasma. The EBEP system jointly developed by Kawasaki Heavy Industries Ltd. and Institute of Physical and Chemical Research is a plasma source for forming a high density plasma by implanting into a plasma chamber from the outside a high-current electron beam accelerated to an energy of approximately 60 to 100eV where the collision cross-section of gas ionization is maximized. The characteristics of the system are such as (1) it enables electron energy distribution to be controlled from outside by varying acceleration voltage, (2) it excels in the controllability of ion energy and (3) it allows to form a steady high-density plasma in a nonmagnetic field. This paper presents the generating principle of EBEP, its plasma characteristics, etching technique using EBEP, thin film forming technique by EBEP-CVD method, and multipurpose apparatus for research and development. 6 refs., 7 figs., 1 tab.

  16. Development of magnesium semi-solid injection molding; Magnesium han`yoyu shashutsu seikei gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Sakamoto, K; Sakate, N; Ishida, K; Yamamoto, Y; Nishimura, K [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    Magnesium semi-solid injection molding is safety and clean process. We have investigated influence of molding conditions on mechanical properties and dimension accuracy of products by semi-solid injection molding. As a result it was proved that the accuracy of products by this process is superior to die casting. This advantage as well as better mechanical properties can be utilized for net shape molding of some automobile parts. 4 refs., 8 figs., 3 tabs.

  17. Development of regeneration technique for diesel particulate filter made of porous metal; Kinzoku takotai DPF no saisei gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Yoro, K; Ban, S; Ooka, T; Saito, H; Oji, M; Nakajima, S; Okamoto, S [Sumitomo Electric Industries, Ltd., Osaka (Japan)

    1997-10-01

    We have developed the diesel particulate filter (DPF) in which porous metal is used for a filter because of its high thermal conductivity and a radiation heater is used for a regeneration device because of its uniform thermal distribution. In the case high trapping efficiency is required, filter thickness should be thick. The thicker filter has a disadvantage of difficulty in regeneration because of the thermal distribution in the direction of thickness. In order to improve regeneration efficiency, we designed the best filter-heater construction which achieves uniform thermal distribution by using computer simulation and we confirmed good regeneration efficiency in the experiment. 4 refs., 14 figs., 1 tab.

  18. Development of three-dimensional pipe bending technology; Pipe zai no sanjigen mage kako gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Takeuchi, K; Takeda, S [Aisin Seiki Co. Ltd., Aichi (Japan)

    1997-10-01

    Recently, automotive parts uses move resin products or pipe-like products in order to achieve high quality or light weight. Additionally, the shape of automotive parts becomes more complicated. The rotary stretch bending method, although it is most popular method of bending a pipe, has some problems, such as a bending radius is limited due to use of bending mold, a thickness of an outer side of a bending portion is thinner, and a product is scratched easily during manufacturing. We have developed a three dimensional pipe bending process using a floating expanding plug and confirmed that this method can solve the above problems. 2 refs., 9 figs., 3 tabs.

  19. Report on the FY 1999 survey on long-term energy technology strategy/basic survey for working out industrial technology strategy. Technology strategy by field - chemical/process field (chemical/process technology field); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chosa hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku (kagaku process bun'ya (kagaku process gijutsu bun'ya)))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    As to long-term energy technology strategy, the paper described the results of the FY 1999 survey of chemical/process technology. The future chemical technology should be transformed from the material production technology in which priority used to be given to convenience to new chemical technology in which the functions needed are to be created. The shortage of the developmental period and minimization of the waste are also desired by the use of new methods. For it, the industry/government/university should gather wisdom together and fulfil the requests from other industries of the country under the circumstances of the society which is aging, is decreasing in birthrate, and is being highly information-oriented. At the same time, the technology should be contributional to constructing the circulating type society which has environmental harmony. If not, it cannot be the technology which is recognized by the society. Efforts should be made for the fundamental technology development, technology to create the materials needed in the society, and development of new process technology to be recognized in the society. Further, the development of technology to meet the needs/restraints from the society should be promoted as seen in the environmental hormone. At the same time, the intellectual base should be prepared such as arrangement of the technology database for advancing smooth technology development. (NEDO)

  20. New Sunshine Program for fiscal 2000. Development of photovoltaic system commercialization technology - Development of thin-film solar cell manufacturing technology - Development of low-cost/large area module manufacturing technology (Development of high-reliability CdTe solar cell module manufacturing technology); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu, Hakumaku taiyodenchi no seizo gijutsu kaihatsu, Tei cost dai menseki mojuru seizo gijutsu kaihatsu (Koshinraisei CdTe taiyo denchi mojuru no seizo gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Research and development was conducted for reliable CdTe solar cell modules, large in area and high in efficiency. In the study of large-area CdS thin film fabrication, a conversion efficiency of 12.5-14.2% was achieved in a cell in a large-area substrate using a mist method-aided process of continuous CdS film fabrication. In the study of large-area CdTe thin film fabrication, the optimization was studied of the base-forming CdS film fabrication conditions and of the CdTe film fabrication conditions in a method using a CdTe powder processed by dry kneading, and a conversion efficiency peak was found to exist when the CdS film thickness was in the range of 700-900 angstrom. In the fabrication of large-area submodules, a large-area substrate was taken up, and TCO (transparent conducting oxide) film was fabricated by the mist method, CdTe film by the normal pressure CSS method, electrodes by the screen printing method, and CdTe film patterns by the blast method. As the result, a conversion efficiency of 11.0% was achieved. In a cost estimation for large-area CdTe solar cell modules, 140 yen/Wp (conversion efficiency: 11.0%, annual production: 100 MW) was obtained. (NEDO)

  1. Long-distance power transmission technology. Microwave power transmission; Denryoku no chokyori yuso gijutsu. Micro ha musen soden

    Energy Technology Data Exchange (ETDEWEB)

    Kaya, N [Kobe University, Kobe (Japan). Faculty of Engineering

    1994-11-05

    This paper explains the principles of microwave power transmission as a long-distance power transmission technology, and the status of its development. Under an assumption of using a wave length of 12 cm (2.45 GHz) and a transmission distance of 1 km, an ideal wireless power transmission can realize transmitting the power at an efficiency of 95% or higher if transmitting and receiving antennas with a radius of 8.8 m are used. What remains as important requirements is raising the efficiency of conversion from power supply into microwaves, and the efficiency of rectification after the power has been received. By using microwave energy sent from a transmission antenna installed on the roof of an automobile, a model airplane with a receiving antenna installed at its rear flew successfully for 40 seconds under the microwave lifted airplane experiment (MILAX). In an experiment of transmitting microwave power in space, power was successfully transmitted to the child rocket as an event under the International Space Year - Microwave Energy Transmission in Space (ISY-METS). The microwave wireless power transmission on the ground would have a possibility of taking over the overhead line transmission into islands. An attempt is scheduled to send power of 5 kW by using transmission and receiving antennas with a diameter of 3 m to investigate effects on transmission efficiency, and communications and electromagnetic environments, and to collect basic data. 3 refs., 3 figs.

  2. Fiscal 2000 study on technology and marketability concerning phytoremediation; 2000 nendo phytoremediation ni kansuru gijutsu oyobi shijosei no chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    An investigative study was conducted on phytoremediation with the purpose of correcting soil contamination caused by heavy metals and the like. In Japan, in connection with the cadmium pollution along the Jintsugawa River region in Toyama Prefecture, a growth of botanical colony such as Athyrium ykoscense was confirmed having a high capacity in absorbing/accumulating heavy metals, with a possibility suggested that they may be utilized for phytoremediation. In a technological research for restoring the environment sustainingly in a wide area, feasibility has been proven to remove polluting agricultural chemicals in farmlands and toxic substance in old industrial sites by making forest trees like poplars, lawns and herbage function. In a project for the cleanup of oil contaminated soil after Gulf War, a demonstrative test of bioremediation for one hectare was performed and, after 15 month experiment, 80 to 90% of aliphatic compounds and 50 to 60% aromatic compounds were degraded. In EU Framework Program in Europe, phytoremediation projects have been implemented across the member countries. (NEDO)

  3. Non-destructive inspection technology using a magnetic transmission sensor; Jiki toka sensor wo mochiita hihakai kensa gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Obama, H.

    1996-06-01

    A newly developed magnetic sensor for non-destructive inspection has acquired the U.S. patent. The starting point of the invention was an inspection of aluminum broth bags in cup-noodle containers with aluminum leaf cover, which was asked from a food maker. A method was developed, in which the microwave is transmitted through containers below their covers and the reflected wave is detected. Then, development of an inspection apparatus for spot welding parts used for automobiles was requested. Since welding is carried out using large current for the spot welding, magnetic characteristics change greatly, which is a remarkable phenomenon appearing especially for magnetic substances. This was found out to be the same phenomenon as the hardening of swords consisting of high temperature heating, pressurizing, and quenching. This substance with two changes can be considered as another material different from the base metal. Coils fitted to impressions were made, and their test pieces were measured. The correlation coefficient over 0.9 was obtained between measured values and results of tensile strength tests. This apparatus can be applied to the non-destructive inspection of internal defects of castings. 2 figs.

  4. New Sunshine Program for fiscal 2000. Development of photovoltaic system commercialization technology - Development of thin-film solar cell manufacturing technology - Development of low-cost/large area module manufacturing technology (Development of novel amorphous solar cell module manufacturing technology); 2000 nendo New sunshine keikaku seika hokokusho. Taiyoko hatsuden system jitsuyoka gijutsu kaihatsu, Hakumaku taiyodenchi no seizo gijutsu kaihatsu, Tei cost dai menseki mojuru seizo gijutsu kaihatsu (Shingata amorufasu taiyo denchi mojuru no seizo gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Research and development was conducted for the development of amorphous solar cell modules for power generation, high in performance and low in production cost. In the effort to improve cell efficiency, experiments were conducted for enhancing bottom a-SiGe cell efficiency for the embodiment of an enhanced-efficiency multi-junction cell, for improving crystallinity in microcrystalline silicon through the application of VHF (very high frequency) plasma CVD (chemical vapor deposition), for texturizing metal electrodes on a film substrate, and so forth. In the effort to increase the film fabrication rate, a VHF plasma CVD device was used for studying the effect of the discharge frequency on film deposition and quality, Vpp between the electrodes, and so forth. Studies about the high-throughput production technology centered on the film substrate solar cell process technology and the designing of an optimum geometrical pattern for SCAF (series-connection through apertures formed on film) cells. Production cost was estimated for the SCAF structure film substrate solar cell manufacturing process, and a production cost of 147.1 yen/W (in case of 100 MW/year production) was obtained as achievable under the currently available conditions. (NEDO)

  5. Development of slagging system using DC joule-heating furnace; Chokuryu denki teikoshiki hai yoyu gijutsu no shohinka

    Energy Technology Data Exchange (ETDEWEB)

    Yoshinari, N.; Ueda, J.; Nishino, J.; Takeshige, S. [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)

    1998-03-01

    Waste disposal by incineration is in wide use, inevitably discharging the unburnt portion or ash as the residue, and the residue contains heavy metals and dioxins. New slagging technologies capable of dealing with the situation, respecting in addition the effective use of resources, are now attracting attention, and are coming into popular use. IHI has already developed three types of melting technologies, which are the residual carbon combustion type, the joule-heating furnace type, and the coke-bed furnace type, and has already delivered to clients some facilities using these technologies. In this report, the three types are outlined, and the joule-heating furnace is taken up to explain the process of development up to commercialization. In the joule-heating furnace, molten slag (resistivity several ohms/cm at 1300degC) is electrified for the melting of ash by joule heat, and the result is a high-quality slag containing less chlorine thanks to the electrochemical decomposition. Studies were conducted about exhaust gas cleaning, silent operation, and cost performance (using only one electrode), etc., by operating 2.4t/d and 10t/d demonstration plants, and the efforts have culminated in the commercialization of the technology. 6 refs., 9 figs., 7 tabs.

  6. Fiscal 1998 New Sunshine Program achievement report. Development for practical application of photovoltaic system - Development of thin-film solar cell manufacturing technology (Development of material/substrate manufacturing technology - Development of high-quality amorphous material/substrate manufacturing technology); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Usumaku taiyo denchi no seizo gijutsu kaihatsu / zairyo kiban seizo gijutsu kaihatsu (kohinshitsu amorphous kei zairyo kiban no seizo gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    A microcrystalline Si thin film is used to form the i-layer of a narrow gap a-Si based thin film solar cell. Since a microcrystalline p-layer is to act as the seeding crystal layer for the microcrystalline i-layer, it has to be very high in crystallinity and therefore is produced under high hydrogen dilution conditions. In this process, a problem arises of the darkening of the underlying transparent SnO{sub 2} electrode. Since this is due to chemical reaction on the SnO{sub 2} surface layer, blackening is prevented by shortening the film fabrication time, and then an excellently microcrystalline p-layer is obtained. Furthermore, by inserting a microcrystalline i-film buffer layer of low fabrication rate into the p/i boundary, plasma damage on the microcrystalline p-layer is inhibited for the fabrication of a microcrystalline i-layer high in crystallinity at high film fabrication rates. A high Voc is then obtained even when the microcrystalline p-layer is very thin. If the hydrogen dilution rate is too low when the i-layer film fabrication rate is high, the initially fabricated layer turns out to be thick to the detriment of film performance. On the other hand, the p-layer or the buffer layer will be etched when the hydrogen dilution rate is too high. The problem is solved by continuously varying the hydrogen dilution rate from high to low during i-layer fabrication. (NEDO)

  7. Workshop on APEC virtual center for environmental technology exchange; APEC kankyo gijutsu koryu virtual center workshop hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    At the 'policy maker workshop of the virtual center of APEC technology exchange' held in November 1997 in Osaka, Japan, it was agreed to organize study groups to discuss the scope of information provided by the virtual center, and to make common the classification systems and retrieval functions. In addition, the necessity was confirmed on international cooperation to promote establishment of virtual centers in different countries and territories. On the first day, Professor Ueda at the Kyoto University gave the basic lecture entitled 'global environment preservation and environmental technology transfer: problems and prospects'. Mr. Dan, the workshop manager gave the basic proposal entitled 'the future directionality of environmental technology exchange inside the APEC territories by using Internet'. Based on the basic proposal made on the first day, reports and discussions were given in the following sessions, where confirmation was made on the future directions. S1: establishment of the virtual centers in other countries and territories; S2: assurance of interchangeability of classification systems and retrieval functions in providing information, and S3: presentation of examples of inter-territorial exchange and the future directionality. (NEDO)

  8. Technology for emission control in internal combustion engines; Kakushu nainen kikan ni okeru hai gas joka gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Shioji, M. [Kyoto University, Kyoto (Japan)

    1998-09-01

    Described herein are emission control technology and exhaust gas cleaning measures for internal combustion engines. Gas turbines burn relatively high-quality fuels, such as natural gas, kerosene, diesel oil and gas oil, where the major concerns are to reduce NOx and dust emissions. The NOx abatement techniques fall into two general categories; wet processes which inject water or steam, and dry processes which depend on improved combustion. Power generation and cogeneration which burn natural gas adopt lean, premixed combustion and two-stage combustion as the major approaches. Low-speed, large-size diesel engines, which realize very high thermal efficiency, discharge high concentrations of NOx. Delayed fuel injection timing is the most easy NOx abatement technique to meet the related regulations, but is accompanied by decreased fuel economy. Use of water-emulsified fuel, water layer injection and multi-port injection can reduce NOx emissions without decreasing fuel economy, depending on optimization methods adopted. Automobile gasoline engines are required to further clean exhaust gases by catalystic systems. 9 refs., 10 figs., 6 tabs.

  9. Trend of advanced technology of micromachines in the USA; Beikoku ni okeru micro machine sentan gijutsu doko chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    In this research, the data of advanced technology of micromachines in the USA have been searched, collected, and arranged from the US patent information, technical journal information, and newspaper and general journal information. According to demand, the main undertaking information was interviewed from well-informed persons. The data were compiled as advanced technology trend of micromachines in the USA. Sensors are remarkably predominant in the elemental technology. There are also important topics in the fields of actuators, motors, lenses, devices, and structures. On the other hand, materials, etchings, packages, motive powers, and softwares are also important elemental technology in spite of their less information. From the viewpoint of usage, detection systems are remarkably predominant. Then, robots, processing systems, optics, analysis systems, motive power systems, medical systems, and acoustic systems are also important. From the viewpoint of industrial sector, the environmental items are predominant. Automobiles, medical treatments, and information communications follow the above. When new relationships to the secondary usage and tertiary usage are not found, it would be rather hard to express such a technology development trend more clearly.

  10. Research on environmental bioecosensing technology using ecological information; Seitaikei joho ni yoru kankyo bio eco sensing gijutsu ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    The bioecosensing technology was studied which detects and identifies feeble signals generated by biosystem communication in wide biological environment. The following were reported as current notable environmental biosensing technologies: a quick measurement method of environmental contaminants using immunological measurement method, analysis method of ecological state of microorganism using DNA probes, observation of ecosystem by bioluminescent system, measurement method of environmental changes and contaminants using higher animals and plants, and detection method of chemical contaminants using chemotaxis of microorganism. As a result, the new bioecosensing/monitoring technology in molecular level was suggested for identifying comprehensive environmental changes which could not be measured by previous physical and chemical methods, as changes in ecosystem corresponding to environmental changes. As the wide area remote sensing technology of environmental ecological information, sensing technology on the earth, aircraft and satellite was also discussed. 247 refs., 55 figs., 17 tabs.

  11. Survey of the energy use rationalization freon decomposition technology (public use); Energy shiyo gorika freon bunkai gijutsu chosa. (kokaiyo)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    The paper made a research survey of a technology to decompose the recovered CFC (specified freon) in which energy efficiency is high and no hazardous materials such as dioxin are generated. As to the technology to decompose specified freon, the high frequency plasma method, the cement kiln method and the combustion method are at the stage of the demonstration test and close to the commercialization. The catalyst method has finished the basic test and is at the stage of a pilot plant. Besides, there are the supercritical water decomposition method, the ultraviolet decomposition method, etc., but they are at the stage of the fundamental research. Mechanisms of the dioxin generation and the suppression of dioxin generation in case of incinerating waste mixed with halide have been made clear. In the fundamental test, conditions were obtained under which the freon decomposition rate of more than 99.99% is attained by the combustion of a mixture of industrial waste and freon using the combustion method, and measures for reduction in hazardous materials such as dioxin were expected to be taken. In the catalyst method, the result obtained was the decomposition rate of more than 99.99% and the catalyst life of more than 1000 years, and its practicality was confirmed. 43 refs., 97 figs., 29 tabs.

  12. Report on the present situation of the FY 1998 technical literature database; 1998 nendo gijutsu bunken database nado genjo chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    To study database which contributes to the future scientific technology information distribution, survey/analysis were conducted of the present status of the service supply side. In the survey on the database trend, the trend of relations between DB producers and distributors was investigated. As a result, there were seen the increase in DB producers, expansion of internet/distribution/service, etc., and there were no changes in the U.S.-centered structure. Further, it was recognized that the DB service in the internet age now faces the time of change as seen in existing producers' response to internet, on-line service of primary information source, creation of new on-line service, etc. By the internet impact, the following are predicted for the future DB service: slump of producers without strong points and gateway type distributors, appearance of new types of DB service, etc. (NEDO)

  13. Development in fiscal 1999 of technologies to put photovoltaic power generation systems into practical use. Development of thin film solar cell manufacturing technologies (Development of low-cost and large-area module manufacturing technologies, and new type amorphous solar cell manufacturing technologies); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Usumaku taiyo denchi no seizo gijutsu kaihatsu (tei cost daimenseki module seizo gijutsu kaihatsu (shingata amorphous taiyo denchi module no seizo gijutsu kaihatsu))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    With an objective to put amorphous solar cells for power use into practical use, research and development has been performed on a low-cost mass production technology for modules with large area and less deterioration using film substrates. This paper summarizes the achievements in fiscal 1999. In developing an efficiency enhancing technology, development of an a-Si/a-SiGe/a-SiGe triple cell structure was launched, and discussions were given on band gaps, film forming conditions, and film thickness. In developing a film forming speed enhancing technology, systematic experiments were performed, as well as theoretical analysis on the film forming mechanism in the plasma CVD process. In developing the process technology for film substrate solar cells, with regard to an a-Si production device of the multi-chamber arranged stepping roll system, six plasma CVD chambers were increased to 13 chambers to improve the electrode forming speed and such processes as drilling low-cost substrates, and laser patterning. In trial fabrication of a triple cell, a module in which one row of the SCAF cell is laminated provided an initial efficiency of 9.64%. (NEDO)

  14. NEDO Forum 2000. Geothermal technology development session (new development of geothermal energy); Chinetsu gijutsu kaihatsu session. Chinetsu energy no shintenkai

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-09-01

    The following themes were presented at this session: (1) geothermal development in the future, (2) the current status of geothermal development and utilization, (3) surveys on the promotion of geothermal development, and (4) verification and investigation on geothermal exploration technologies, development of hot water utilizing power generation plants, and international cooperation on geothermal development and utilization. In Item 2, report was made on the current status of geothermal power plants in Japan and their future development targets, long-term overview of geothermal development, measures and budgets to achieve the targets of geothermal development. In Item 3, it is reported that out of 48 areas completed of the survey (including the new promotion surveyed areas), the areas possible of steam power generation and confirmed of temperatures higher than 200 degrees C are 30 areas, and the areas possible of binary power generation (using down hole pumps) and small to medium scale power generation, confirmed of temperatures of 100 to 200 degrees C are 13 areas. In Item 4, reports were made on the reservoir bed variation exploring method, surveys on deep geothermal resources, a 10-MW demonstration plant, a system to detect well bottom information during excavation of geothermal wells, a technology to collect deep geothermal resources, and a hot-rock using power generation system. In Item 5, geothermal exploration in remote islands in the eastern part of Indonesia, and the IEA cooperation projects were reported. (NEDO)

  15. Safety (management and technology). Reality of biosafety technology; Anzen (manejimento to tekunoroji). Baio/sefuti gijutsu no jissai

    Energy Technology Data Exchange (ETDEWEB)

    Kikuchi, H. [Chiyoda Technoace Co. Ltd., Yokohama (Japan)

    1994-08-05

    Biosafety, in other words, biohazard countermeasure is to prevent biological disasters, in particular, hazards caused by microbes infecting human beings or things, and they are roughly classified into two kinds. One is a disaster of infection via pathogenic microbes originally existing in the nature or allergens and toxins which microbes produce. The other is a potential, unknown hazards in the field of so-called biotechnology such as gene recombination technology. This paper describes the features of microbe pollution and measures against biohazard. The basis of the biohazard countermeasures is isolation from microbe pollution, and in reality confinement of microbes. As to methods for confining microbes, in addition to physical confinement, there is a biological confinement method using a host-vector system which is hard to exist in conditions other than special incubating conditions in recombination DNA experiments. 3 refs., 3 figs., 2 tabs.

  16. Fiscal 1997 R and D project on industrial science and technology under a consignment from NEDO. R and D of the ultimate manipulation technology of atoms and molecules (R and D of the formation of advanced materials for power generation environment); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho (hatsuden kankyoyo kokino sozai keisei gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper describes R and D of the ultimate manipulation technology of atoms and molecules (atom technology). Ten nanoscale Ge islands were successfully formed in proper positions on an Si substrate surface by using mask technology of nanoscale atomic layers. Growth of less-defect ZnSe films on a GaAs(110) surface was possible under various conditions. The magnetic transfer mechanism of Mn oxide with huge reluctance was clarified. Through study on selective-area deposition of Si on plasma-oxidized ultrathin SiO2 mask layers patterned by direct electron-beam exposure and an idea of SiO2/SiNx bilayer mask, direct use of the ultrathin mask layer as insulating layer in device structure was achieved. The superior property as electron beam resist of methano- fullerene composed of fullerene C60 with side chains including oxygen was clarified. The initial oxidation process of an Si(100) surface was analyzed, and the observation result by SREM was theoretically explained. Development of a high-resolution spin polarization electron microscope was also mentioned. 48 refs., 145 figs., 20 tabs.

  17. Survey of regulations accompanied with isolation technology of carbon dioxide; Nisanka tanso no kakuri gijutsu ni tomonau hokisei no chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Regulations, conventions and agreements relating to the discharging liquefied carbon dioxide (CO2) into the bathypelagic zone from a cruising ships are investigated. The ocean storage of CO2 is not specifically prohibited by law, but must be regulated on a global scale because such treatment may impact the marine environment. In principle, treatment with impact on the nature is prohibited. Laws of environmental conservation are completed in European, Asian, and Pacific countries, which join international conventions and committees with high interests. It is suggested that the engineering technique of the storage should be improved to observe regulations and that an impact assessment for the ocean storage should be carefully conducted in full understanding of the basic premise of the regulatory systems or organizations. Furthermore, it is significant to study on the possible effect of the ocean storage of CO2 on global warming and life-cycle assessment inventory analysis, namely the balance of the energy budget between the separation and the ocean storage of CO2. 23 refs., 7 figs., 6 tabs.

  18. Research trend survey on the stable isotope utilization technology; Antei doitai no riyo gijutsu ni kansuru kenkyu doko chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This report reviews the activities and the trends in the area of the stable isotope use attracting attention recently. In the medicine and clinical treatment sector, the remarkable trends are the extension of {sup 13}C use. The breath test and the magnetic resonance spectroscopy (MRS) diagnosis have been developed as inspection methods. It is noted that investigation has been initiated on the magnetic resonance imaging (MRI) using {sup 3}He and {sup 129}Xe for the lung imaging. In the organic chemistry and biochemistry sector, the stable isotopes are used for analyzing the structures of complicated natural compounds and materials relating to life science and for analyzing the chemical reaction mechanism of organic compounds. In the nuclear energy sector, {sup 10}B and {sup 7}Li have been used as neutron absorption materials and pH neutralizing reagent, respectively. In the analysis and measurement sector, the process of isotopic dilution is used for the environmental analysis of trace elements including harmful substances. Among various separation methods of isotopes, well studied uranium enrichment processes and deuterium separation processes are described. Separation of {sup 15}N by ion exchange resin method and plasma ion cyclotron resonance (ICR) isotope separation have been studied, recently. 133 refs., 53 figs., 7 tabs.

  19. Fiscal 1999 research report on long-term energy technology strategy. Basic research on industrial technology strategy (Individual technology strategy). Electronic information technology field (Human process ware field for computers); 1999 nendo choki energy gijutsu senryaku nado ni kansuru chsao hokokusho. Sangyo gijutsu senryaku sakutei kiban chosa (bun'yabetsu gijutsu senryaku) denshi joho gijutsu bun'ya (computer kanren bun'ya no uchi, human process wear bun'ya)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 basic research result on industrial technology strategy of a human process ware (HPW) field on electronic information. Although the current HPW industry is not yet complete, various technologies concerned are being stored, and the HPW industry is expected as new major industry for home and personal information equipment. As factors hindering technological innovation in Japan, the incomplete market, poor cooperation between industry and government, ambiguous role of university, and poor standardization were pointed out. Technology trends were analyzed to extract seed technology fields from 3 viewpoints of mobile HPW available at any time, at any place and to anybody, HPW system capable of customizing every personal use, and HPW supporting development of a creativity. As general strategy, the technology seed chart and map of technical development targets for every HPW were prepared to conceive a route to practical use, and develop element technologies required for practical use, based on the future trend of the market. (NEDO)

  20. Subjects on geochemical technology for geothermal power plant. Chinetsu hatsudensho ni okeru kagaku kanri gijutsu ni kansuru shomondai. 1

    Energy Technology Data Exchange (ETDEWEB)

    Hirowatari, K [Kyushu Electric Power Co. Ltd., Fukuoka (Japan)

    1991-04-30

    This paper introduces the following technologies and countermeasures found to be successful in solving geochemical problems relating to the maintenance and management of geothermal power plants belonging to Kyushu Electric Power Co., Ltd. In controlling condensate properties,curtailment of pH fluctuation range by changing the injection point of NaOH,inactivation of sulphur bacteria by using chloramphenicol and prevention of slime loading of the condenser strainer by running of the cooling tower without make-up water were achieved. In the environmental countermeasures,it was concluded that Fe-ion injection method was most effective to remove As out of waste hot waters which are all reinjected into the underground formation now. By understanding the characteristics of the well eruption fluids,the attenuation mechanism of steam producing wells could be estimated, which were interference,re-eruption and degradation of the reservoir temperature caused by the reinjected hot waters. And the problems associated with the attenuation of steam producing wells have been solved fundamentally by taking proper countermeasures to eliminate the influence of reinjected hot waters. The atteunuation of reinjection well was found to be caused dominantly by silica loading at the permeable zone of wellbore and to be effectively solved by high temperature reinjection of the waste hot waters, controlling of temp. degradation of hot waters to be reinjected and prevention of air mixing. After applying proper countermeasures, the attunuation rate of the reinjection well has been fairly improved. 13 refs., 21 figs., 2 tabs.

  1. Present status and future of simple measuring methods; Suishitsu kan`i sokutei gijutsu no genjo to hatten no hoko

    Energy Technology Data Exchange (ETDEWEB)

    Urano, K.; Ishii, S. [Yokohama National University, Yokohama (Japan)

    1998-05-10

    This paper discusses simple measuring methods for water quality. There are various purposes for measuring water quality. It is not necessary to measure the water quality in an official way by taking a lot of labor and cost. Simple measuring methods are often adopted. By applying simple methods, measuring points and frequency of main discharge processes can be increased, resulting in the detailed evaluation and monitoring. Easy safety check for earth filling waste and soil pollutants is realized. Daily inspection and atmospheric measurements at accidents and disasters are easily promoted. The simple methods require easy and rapid operation, sensibility, accuracy and reproducibility suitable for the purpose, small size apparatus, low cost for measurements, and safety against used harmful matters. Coloring reaction is utilized for most of the measuring principles of simple methods, which include tests using test papers, pack tests, colorimetric tests, and tests using photoelectric colorimeter. The bacteria detection includes titration methods using dropping bottles, tablets and syringes, and tests using test papers. A measuring kit for the enzyme immunity method is commercialized. Cooperation of experts, measuring operators at the site and citizens is also indispensable. 7 refs., 3 figs., 2 tabs.

  2. Chlorofluorocarbons (CFCs) destruction technology by induction coupled plasma; Koshuha purazuma ni yoru tokutei furon hakai gijutsu ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, A. [Nippon Steel Corp., Tokyo (Japan)

    1999-09-05

    Abolishing flon in which the reuse by pollution and degradation is difficult by recovery flon and recovery and recycling process which do not rotate for the middle reuse that the recovery system is constructed is arising. And, the specific flon recovery quantity increases with the progress of development of the recent CFC substitute and renewal to the CFC substitute correspondence machine. Specific flon collapse technique using rf plasma introduced in this paper cultivated the basic technology in Agency of Industrial Science and Technology, resources environment integrated research place. The demonstrated operation research was carried out under Ministry of International Trade and Industry, New Energy and Industrial Technology Development Organization since December 1994. (NEDO)

  3. Fiscal 1997 R and D project on industrial science and technology under a consignment from NEDO. R and D of the application technology of functional protein complex (R and D of the high-functional maintenance technology for power plants); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo gijutsu Sogo Kaihatsu Kiko itaku. Kinosei tanpakushitsu shugotai oyo gijutsu no kenkyu kaihatsu (hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    In order to develop advanced maintenance technology for power generation facilities, application technology of functional protein complexes is under investigation. On a light controllable enzymatic reaction system, construction of a light controllable bio-reactor by physico-chemical and bio- chemical techniques, and structure and functions of a photosynthetic protein complex using thermophilic cyanobacteria as material are under investigation. On a molecular mechanism for recognition and reaction of receptor proteins, structure analysis and engineering application of glutamate receptor channels of a synaptic transmission system, and basic study and material proteins for artificial structures using endocytic micromachinery, and a multi-enzyme system for synthesis of glycosphingolipids are under investigation. On a complex oxidation/reduction system by genetic engineering technique, construction of a high- efficiency stable system with functionally arranged oxidoreductase and electron transmission systems in biomembranes is in promotion. Research work was also made on molecular assemblies for a functional protein system. 166 refs., 91 figs., 9 tabs.

  4. Recent technologies for reduction of aircraft propulsion noise. Kokuki engine soon teigenka no saikin no gijutsu shinpo ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, H [National Aerospace Lab., Chofu, Tokyo (Japan)

    1994-03-10

    Inside the jet engine, the propulsion engine for an aircraft, a high speed air current is flowing, and the rotors such as the fan, compress or, turbine and so forth are rotating with a high speed in its flowing current. The flow itself in which a high speed exhaust jet is discharged in the air from engine exhaust port, and the aerodynamic noise generated by an interaction of the flow with the material bodies are the main noise sources of the aircraft engine. Because the supersonic planes are necessary to fly with mach number 2 - 3 during cruising, the turbojet engine with a large jet exhaust speed or the low bypass ratio turbofan engine is selected. Since a noise reduction by reducing the jet exhaust speed, which was an effective measure for the high subsonic speed passenger plane, can not be applied, a reduction of the supersonic jet noise, which is hard to be reduced, becomes a necessity. In addition, in recent years, a research and development of the advanced turbo prop (ATP) aircraft with a further higher thrust efficiency are advanced as well. The aerodynamical noise reduction technologies of these engines for supersonic airplanes are summarized. 14 refs., 11 figs., 1 tab.

  5. Recent progress in fan and compressor for aeroengine. Koku engine yo fan asshukuki no saikin no gijutsu shinpo

    Energy Technology Data Exchange (ETDEWEB)

    Saito, Y [National Aerospace Lab., Chofu, Tokyo (Japan)

    1994-03-10

    As the main components of the aeroengine, the fan and compressor reach to extremely high level stage technologically. Also at present when about 50 years passed after the jet engine was applied in practice, however, an effort for a modification is being continued, and furthermore even in the 1990s, the engines that adopted the new technologies are in succession being put in practical application. New engines in the 1990s are being applied in practice by adopting the study results on fan and compressor from the 1970s to the 1980s. Because, which way the future fan and compressor of the aircraft will go to has a relation with an aircraft trend from now on, and even in the 2000s the high subsonic speed aircrafts will be a center of the private air planes. The engine of high subsonic speed aircraft in the next generation will become an ultrahigh bypass ratio engine, the thrust efficiency is raised and noise is lowered, by lowering a fan pressure ratio and by increasing an air flow quantity compared with the current high bypass ratio turbofan engine. 16 figs.

  6. Report on the results of research and development under a consignment from NEDO of glycoconjugate production utilizing technologies. Development of technologies to fix and effectively utilize carbon dioxide by applying glycoconjugates; 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Fukugo toshitsu seisan riyo gijutsu no kenkyu kaihatsu (fukugo toshitsu oyo nisanka tanso koteika yuko riyo gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper reports research results in fiscal 1997 for the `research and development of glycoconjugate production utilizing technologies`. In synthesizing, utilizing and remodeling technologies for glycoconjugates by means of chemical synthesis, studies were performed on developing methods to synthesize Gal {beta}1-3Gal NA(c {alpha})1-0-Serine in preparative scale, synthesizing high mannose type sugars of natural type without protection groups, and linking GlcNA or GalNAc onto partial peptide of fibroblast growth factor (FGF). In synthesizing, utilizing and remodeling technologies for glycoconjugates by using biological methods, studies were carried out, with regard to glycoconjugate synthesizing, utilizing and remodeling technologies utilizing animal cells, on identifying sugar structures of IFN-{gamma} produced from CHO cell line, and isolating CHO cell lines introduced with genes of sugar transferred enzyme GnTIV and/or GnTV. Furthermore, studies were conducted on glycoconjugate synthesizing, utilizing and remodeling technologies utilizing microorganisms, and glycoconjugate structure analyzing technologies. In addition, overall investigation was made on glycoconjugate production utilizing technologies. 113 refs., 76 figs., 18 tabs.

  7. Report on the present situation of the FY 1998 technical literature database; 1998 nendo gijutsu bunken database nado genjo chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    To study database which contributes to the future scientific technology information distribution, survey/analysis were conducted of the present status of the service supply side. In the survey on the database trend, the trend of relations between DB producers and distributors was investigated. As a result, there were seen the increase in DB producers, expansion of internet/distribution/service, etc., and there were no changes in the U.S.-centered structure. Further, it was recognized that the DB service in the internet age now faces the time of change as seen in existing producers' response to internet, on-line service of primary information source, creation of new on-line service, etc. By the internet impact, the following are predicted for the future DB service: slump of producers without strong points and gateway type distributors, appearance of new types of DB service, etc. (NEDO)

  8. Development of practical application technology for photovoltaic power generation systems in fiscal 1997. Development of technologies to manufacture next-generation thin film solar cells, development of technologies to manufacture CIS solar cell modules, development of technologies to increase high-quality film area; 1997 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Jisedai usumaku taiyo denchi module no seizo gijutsu kaihatsu, CIS taiyo denchi module no seizo gijutsu kaihatsu, kohinshitsumaku no daimensekika gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    With an objective to improve efficiency and reduce cost of CIS-based thin film solar cells, research and development has been made on technologies to increase high-quality CIS film area and technologies to increase speed in the manufacturing process. This paper describes the achievements attained during fiscal 1997. The research covered development of technologies to form high-grade Cu (In, Ga) Se{sub 2} (CIGS) film by using the multi-dimensional deposition process, component technologies for forming a rear electrode, a buffer layer and a transparent electrode, and patterning technologies. As a result of the research, thickness of the CIGS film was reduced to half as much as that of the conventional films, having achieved conversion efficiency of 13.1%, which corresponds to about 90% of the conventional CIGS solar cells. In addition, elucidation was made on the effect of an MoSe{sub 2} layer existing on interface with CIGS/Mo in a CIGS solar cell imposed on solar cell characteristics. In developing an Mo film laser scribing technology, intensity dependence of laser energy was made clear, the energy being required for scribing according to surface condition of the Mo film. (NEDO)

  9. Surveys and researches on trends of technologies related to hydrogen; Suiso ni kansuru gijutsu doko chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1983-03-01

    This report covers surveys of the latest technological trends in relation to the production, storage, and transportation of hydrogen as energy. Also included in the report are surveys of hydrogen, fuel cells, and wind energy centering about Europe. At the 4th World Hydrogen Energy Conference (Pasadena, U.S., June 1982), a number of essays were presented concerning the utilization of hydrogen, production of hydrogen, thermochemical processes, hybrid processes, photochemical processes, photo/thermochemical processes, other processes, fuel cells, metallic hydrides, etc. This report particularly describes in detail the trends of technologies involving the production of hydrogen by the electrolysis of water and by thermochemical processes. As for the recent trend of the metallic hydride technology, reports are made on the International Symposium on the Properties and Applications of Metal Hydrides (Toba, Japan, June 1982) and on Japan's research on the application of metallic hydrides. Concerning the trends in Europe of technologies relative to hydrogen, fuel cells, and wind energy, the results of the research group's on-site investigations are reported. (NEDO)

  10. Research report of innovation of industrial technology in FY 1996; 1996 nendo sangyo gijutsu no innovation chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Remarkable innovations of the Japanese industry in various fields have been extracted and evaluated during the 50 post-war years. In this report, a method of capturing the innovations of industrial technology is examined. It is essential to clarify the social role of industrial technology, and the original views of this research are indicated by focusing on the innovation process in order to clarify the connections between those of mutual industry, technical management, man-power, and unique Japanese technology. The innovations achieved by the Japanese industry during post-war 50 years are classified into eight categories, i.e., automobiles, iron, aero-space/railways, machines, national land/energy, chemicals/fine ceramics, electronics/information/communication, and life, to clarify the technological progress in each field. In Japan, the industrial technology has been developed with learning from fundamental researches in Europe and the USA. In the future, it is necessary to independently develop industrial frontier. 4 figs., 47 tabs.

  11. Networking of research information on global environment protection technologies; Chikyu kankyo taisaku gijutsu no kenkyu joho network jigyo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Networking is being executed with an objective of exchanging information on global environment technologies at an international level. In order to further promote the information exchange, and to make web sites user-friendly, fiscal 1998 has performed structuring a thesis renewal system. As a result of structuring the thesis renewal system, researchers can use the system as using a word processor by inputting data from a terminal in their laboratories. The data can also be made into a data base nearly semi-automatically. In addition to reducing time loss, delay and input errors because of re-entry, the researchers can make the data into a database on nearly a real time basis, and can provide their own theses to any part of the world through Internet. With regard to retaining Internet security, the security software having been introduced last year was renewed. In addition, detailed status such as daily access has become possible of identification as a result of introducing the net intellect. (NEDO)

  12. FY 2000 report on the results of the technology development of energy use reduction of machine tools, etc. Technology development of environmental load reduction related to water soluble lubricating oil, etc. (R and D of low energy coolant degradation prevention technology and waste liquid processing technology); 2000 nendo energy shiyo gorika kosaku kikai nado gijutsu kaihatsu seika hokokusho. Suiyosei junkatsuyu ni kakawaru kankyo fuka teigen nado gijutsu kanri (tei energy coolant fuhai boshi gijutsu oyobi haieki shori gijutsu no kenkyu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The R and D were carried out on a system by which the long life of coolant of machine tools can be achieved and a system to process waste efficiently, economically and with less environmental loads, and the FY 2000 results were summed up. In the R and D of a system to prevent degradation of low energy coolant, measurement was made of effects of the degradation prevention system at a laboratory level, and it was found out that propagation of bacteria causing the degradation can be prevented with pH kept high. Further, it was admitted that the alkali effect on metal formability was not very much. As to the coolant processing, in the present situation, most of the coolant is taken back by industrial waste processing dealers. So, the development of the low energy waste liquid processing system is earnestly desired. In the R and D of the low energy waste liquid processing system, test on characteristics evaluation was conducted about each method of systems. Subjects to be improved/solved were extracted such as the point that volatile organic matters are included in condensed water after evaporation of waste liquid and there seems to be a possibility of needing the secondary processing. (NEDO)

  13. Workshop on APEC virtual center for environmental technology exchange; APEC kankyo gijutsu koryu virtual center workshop hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    At the 'policy maker workshop of the virtual center of APEC technology exchange' held in November 1997 in Osaka, Japan, it was agreed to organize study groups to discuss the scope of information provided by the virtual center, and to make common the classification systems and retrieval functions. In addition, the necessity was confirmed on international cooperation to promote establishment of virtual centers in different countries and territories. On the first day, Professor Ueda at the Kyoto University gave the basic lecture entitled 'global environment preservation and environmental technology transfer: problems and prospects'. Mr. Dan, the workshop manager gave the basic proposal entitled 'the future directionality of environmental technology exchange inside the APEC territories by using Internet'. Based on the basic proposal made on the first day, reports and discussions were given in the following sessions, where confirmation was made on the future directions. S1: establishment of the virtual centers in other countries and territories; S2: assurance of interchangeability of classification systems and retrieval functions in providing information, and S3: presentation of examples of inter-territorial exchange and the future directionality. (NEDO)

  14. Achievement report for fiscal 1997 on development of technologies for practical photovoltaic system under New Sunshine Program. Manufacture of thin-film solar cell and of low-cost/large-area module (Formation of low-temperature film); 1997 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Usukau taiyo denchi no seizo gijutsu kaihatsu, tei cost daimenseki module seizo gijutsu kaihatsu (teion maku keisei gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    A polycrystalline Si thin film formation technology is developed, which uses the flux process in which a reaction occurs between the target crystal and a flux component which is eutectic. Using this process, a crystal grain relatively large in diameter is obtained at a relatively low temperature. This method is now attracting attention as one of the technologies for producing crystalline Si film for use in thin-film polycrystalline Si solar cells. Especially when Al is used for flux, since Al is automatically doped into the target crystalline Si film, it is expected that the resulting film will serve as the ground for a photoactive layer provided with the BSF (back surface field) function which is important for the improvement of solar cell efficiency. A polycrystalline Si thin film is formed on a 2cm times 2cm-large glass substrate at a temperature not higher than 600 degrees C. It is recognized that films selectively oriented towards the (111) or (100) plane are acquired when other processes are employed. It is expected that the said Al-doped film provides a ground on which a BSF function-provided photoactive layer will be formed. (NEDO)

  15. Role of civil technology towards environmental conservation and creation; Kankyo hozen/sozo eno doboku gijutsu no yakuwari

    Energy Technology Data Exchange (ETDEWEB)

    Kato, T. [Maeda Corp., Tokyo (Japan)

    1995-01-15

    The recent circumstances domestic and abroads around `environment` are showing a kaleidoscopic movement with the Earth Summit in 1993 as a turning point, such as the materialization of the Environmental Fundamental Law, enactment of environmental policy fundamental principle by the Ministry of Construction, and furthermore and adoption of the earth environmental action plan-agenda 21-by the Japan Society of Civil Engineers. Under the circumstances like this the civil work execution study committee has planned this panel discussion for study, for a purpose of catching hold of the environmental problem from a standpoint of the actual constructor and furthermore searching for what should be done. As a consequence, the various opinions have been presented as follows: Namely, in order to grapple with the environmental problems it is required for that a co-operation work of the civil engineers should be done with the people in the other field. As for the environmental problems, a discussion forecasted for the future is necessary. Because an environment itself is fuzzy matter, it would be better not to give the too clear solution for a concept. An attitude to make much of the matter which can not be counted is needed. The mitigation (influence alleviation countermeasure) is required for applying flexibly.

  16. Introductory study of super survey (next generation underground exploration technology); Super survey (jisedai chika tansa gijutsu) no sendo kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    An investigational study was conducted on the R and D trend of innovative technology aiming at high-accuracy/high-efficiency next generation underground exploration technology (super survey technology). Paying attention to the seismic survey and electromagnetic survey, the study was made on technical characteristics, the utilization status and the needs at sites, the R and D trend, etc. As to the present R and D, the development is proceeded with of the time domain method in the electromagnetic survey, the effective quantity data processing/analysis method and the indication method using the reflection method in the elastic survey. As new technology to be noticed, the following are cited: SQUID magnetometer, underground analysis using magnetic deviation data, electromagnetic migration, ACROSS, rotating seismometer, laser Doppler vibrator, etc. Concerning the course of the next generation underground survey technology, a system of the integrated underground exploration theory is considered which is based on a combination of the electromagnetic survey and seismic exploration. In the study, a plan is worked out for research/development of a technology of analyzing the different data obtained. 49 figs., 13 tabs.

  17. Fiscal 1997 result of the R and D project of industrial science and technology under consignment from NEDO. R and D of creation technology of original advanced materials (R and D of creation technology of original advanced materials); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo (Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku). Dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper describes R and D of creation technology of original advanced materials in the R and D project of industrial science and technology. Although new material technology is dependent on the needs of a future society, it should correspond to a global environment preservation society, information-oriented society and aging society as observed based on the present social trend, and new materials superior in hot strength, light weight, corrosion resistance, decomposability, photo-function, magnetism, conductivity, bio-copying and adaptability are demanded. This project is in promotion since fiscal 1996 to develop formation technology of high-performance advanced new materials by precise molecular control of structure and production process of organic polymers and molecular assemblies. The research started on 4 themes such as advanced stimulus-response material, precision catalytic polymerization, condensed system structure control and multi-dimensional polymer structure. The research on molecule harmonizing material was added in fiscal 1997. In fiscal 1997, the general committee discussed a progress situation and next year research plan, and surveyed an overseas technology trend. 1 fig.

  18. Study of evaluation for grouting effect in a borehole; Yakueki chunyu koka hyoka gijutsu ni okeru ichikosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Nakamura, H; Matsuo, T [Fukuoka Municipal Transportation Bureau, Fukuoka (Japan); Yamauchi, Y; Imanishi, H [Osaka Soil Test, Osaka (Japan)

    1996-10-01

    For the foundation improvement works by grouting in a borehole, evaluation of grouting effect is one of the most important management items. The grouting design and works are sometimes reconsidered depending on the evaluation of grouting effect during the test injection. The purpose of the evaluation of grouting effect is to grasp the range of improvement and consolidation after the injection, and to judge and estimate the strength and permeability of the consolidation part. This paper describes the judgment method of the strengt