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Sample records for kaihatsu kozo seigyo

  1. Achievement report for fiscal 1998 on research and development of multifunction members structure control technologies. Development of advanced surface treatment technologies for methane-fueled aero engines (1. Microstructure control technologies for ultrahigh temperature members); 1998 nendo fukugo kino buzai kozo seigyo gijutsu no kenkyu kaihatsu. Methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu (chokoon buzai mikuro kozo seigyo gijutsu)

    NONE

    1999-03-01

    The carbon fiber reinforced carbon composite materials (C/C composites) strong at ultrahigh temperatures are taken up. So as to improve on its resistance to oxidation, corrosion, and abrasion as well as on its strength at ultrahigh temperatures, an ion engineering-assisted technique is used to reform the C/C composite surface layer and a technology is developed for thin coating formation on the C/C composite surface. Next, technologies are developed for multifunction coating formation on top of the surface, for defect prevention or removal from the C/C composite, and for adhesion enhancement between the C/C composite fibers and the matrix. Technologies are further developed for evaluating hostile environment withstanding capabilities at ultrahigh temperatures. In this fiscal year, in the study of microstructure controlling multilayer coating technologies, development is conducted of technologies of ion engineering-assisted surface control and reform and of technologies of forming multifunctional coatings high in reliability and resistance to corrosion. In the field of microstructure control composition, 3-dimensional carbon fiber reinforced carbon composite materials are manufactured by way of trial and evaluated, and their behavior under rigorous conditions is evaluated. (NEDO)

  2. 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

    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)

  3. FY 1993 research and development of the technology for controlling structures of functional composite members. R and D of advanced surface processing for methane-fueled aircraft engine members (Technology for controlling the microscopic structures of superhigh-temperature members); 1993 nendo fukugo kino buzai kozo seigyo gijutsu no kenkyu kaihatsu (methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu). Chokoon buzai micro kozo seigyo gijutsu

    NONE

    1994-03-01

    Described herein are the results of the FY1993 research and development project, implemented for development of the technologies for modification of material surfaces and interfaces, with the objectives to develop the optimum members for methane-fueled aircraft engines. For R and D of multi-layered films with controlled microscopic structures, the tests are conducted for forming thin-film layers by, e.g., ion implantation, ion mixing and implantation of large quantities of ions as the surface controlling/modification techniques based on, e.g., ionic techniques. The tests are conducted for, e.g., chemical vapor-phase reaction evaporation and low-pressure plasma spraying as the technologies for forming multi-functional films of, e.g., high reliability and resistance to corrosion. For development of the technologies for controlling/compositing the microscopic structures, the tests are conducted for, e.g., selection of the matrix materials, and prevention/removal of defects by the chemical vapor-phase reaction penetration treatment effected for extended periods. For development of the technologies for evaluation of the characteristics under superhigh-temperature environments, the tests are conducted to investigate the mechanical characteristics of isotropically uniform metallic materials under multi-dimensional stresses and evaluation thereof, and mechanical and thermal characteristics of carbon-fiber-reinforced carbon composites and evaluation thereof. (NEDO)

  4. 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)

    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.

  5. FY 1999 research and development of technologies for creating original high-function materials. Development of technologies for functionalized materials for power generating facilities (Report on the R and D results of controlling precise structures of polycondesed systems); 1999 nendo dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu seika hokokusho. Hatsuden shisetsuyo koseinoka zairyo gijutsu kaihatsu (shukugokei seimitsu kozo seigyo no kenkyu kaihatsu)

    NONE

    2000-03-01

    The research and development project is implemented for the polymerization catalysts and precise polymerization processes which can freely control the primary structures, e.g., molecular weight, regularity, branching and terminal group structures, of the polymers produced by polycondensation and ring-opening polymerization, in order to drastically improve their functions, and the FY 1999 results are reported. The basic studies on the precise polycondensation successfully lead to chemoselective synthesis of polymers by the direct polymerization, and synthesis of polyamides of narrow molecular weight distribution and high-molecular-weight aliphatic polyesters. The other items studied include precisely, regularly sequential polymerization by amine activation, innovative synthesis of polycarbonate, precise control of branching structures, regioselective oxidative coupling polymerization, and matrix polycondensation. The basic studies on the controlled ring-opening polymerization cover cationic ring-opening polymerization behavior of 6-membered thiocarbonate derivative having an ester group, to generalize the polymerization controlled by neighboring group participation. The other items studied include precise control of branching structures, molecular weights, network polymer structures, and polymer unit sequences. (NEDO)

  6. Report on results concerning development of supermetal technology, R and D of offshore oil production supporting system, and development of technology for aluminum-based high-anticorrosive microstructured metallic material (FY2000); Super metal no gijutsu kaihatsu seika hokokusho (2000 nendo). Kaitei sekiyu seisan shien system kenkyu kaihatsu (Aluminium kei kotaishokusei bisai kozo seigyo kinzoku zairyo gijutsu kaihatsu)

    NONE

    2001-03-01

    With the purpose of developing high strength and high-anticorrosive aluminum-based material through microstructure control, R and D was conducted, with fiscal 2000 results compiled. In the research of grain refinement mechanism, molten metal rolled stock was experimentally produced in which Mg content was varied 0-2.5 mass % with Al-2.5 mass % Mn as its base. As a result, a microstructure with an average grain size of about 3 {mu}m was obtained by processing the alloy through homogenization at 550 degrees C, cold rolling by 91% and the final treatment at 350 degrees C without Mg addition. Addition of Mg increased square grain boundaries in the microstructure, raising proof stress to about 180 MPa in Al-2.5%Mn-2.5%Mg alloy. In the research of development of the machining process, a rapid heating process was performed on a typical aluminum alloy, with the effect examined, by an alloy system or a plate thickness, on the electric power used and on the temperature reached. A rapidly heated aluminum alloy plate turned to have a microstructure with equi-axed grains of a uniform size, compared with a salt bath processed material heated at the same temperature. (NEDO)

  7. Fiscal 1998 research report. Industrial science and technology research project / R and D on creative advanced functional materials (structure-controlled materials) / Harmonized molecular materials; 1998 nendo dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (kozo seigyo zairyo gijutsu kaihatsu) seika hokokusho. Bunshi kyocho zairyo no kenkyu kaihatsu

    NONE

    1999-03-01

    R and D on harmonized molecular materials aim at establishment of the technology fabricating self-assembled organic molecular films on solid surfaces which have potentials of mechanical response to electric fields, electroluminescence or optical functions. Molecule harmonization expresses new structures and functions difficult to be expressed by each molecule alone, by cooperative interaction between molecules due to noncovalent bond. Functional thin films were developed by controlling alignment and/or arrangement of molecules with an aid of self-assembling processes. Thiol compounds with larger dielectric anisotropy were synthesized as electric field responsive self-assembled films. {pi}-conjugated compounds composed of phenyl-capped oligothiophenes were synthesized as electroluminescent self-assembled films, and their high crystallinity and efficient electroluminescence were found. Heat- and solvent-resistant lyotropic liquid crystalline (LLC) aligning polymers such as polyamine and polyimine were synthesized as new optically functional LLC dye self-assembled films. (NEDO)

  8. Fiscal 1998 R and D on original advanced material creation technology (development of precise structure control materials for oil refinery improvement). R and D result report on multi-dimensional polymers; 1998 nendo dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (sekiyu seisei kodoka seimitsu kozo seigyo zairyo kaihatsu) seika hokokusho. Tajigen kukan polymer no kenkyu kaihatsu

    NONE

    1999-03-01

    For development of radical-controlled synthesis technology of aromatic compounds using enzyme-related catalysts and synthesis technology of ordered compounds, and development of synthesis technology of new polymer groups with non-covalent bond linkages and new topological structures, this R and D on multi-dimensional polymers is promoting 2 research themes, (1) precise polymer synthesis technology using enzyme-related catalysts, and (2) chemical synthesis technology for polymers with non-covalent bond linkages and new topological structures. The joint research on (1) precise polymer synthesis technology using enzyme-related catalysts established the high-yield synthesis technology of phenol dimer first in the world. The joint research first studied the synthesis using 2,6-dimethylphenol as monomer through synthesis of phenol groups using ferrosalen, and obtained the mixture of polymer components more than 10,000 in molecular weight and low-molecular weight components by using 1,4- dioxane as solvent. (NEDO)

  9. Research and development of a technology to create original high-function materials in fiscal 1998 (development of precision structure controlling materials by improving petroleum refining). Report on achievements in research and development of precision catalytic polymerization; 1998 nendo dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu seika hokokusho. Sekiyu seisei kodoka seimitsu kozo seigyo zairyo kaihatsu (seimitsu shokubai jugo no kenkyu kaihatsu)

    NONE

    1999-03-01

    Research and development on precision catalytic polymerization aims at developing polymerizing catalysts that can control arbitrarily the molecular weight and three-dimensional regularity by which rapid enhancement can be expected in performance of additional polymerization type polymers, and the primary structure of terminal groups. Works are being done on two sub-themes of ultimate additional polymerization and orientation catalyst polymerization. The research and development of the ultimate additional polymerization included structural control in polymerization reaction in vinyl chloride, vinylester and acrylic monomers, radical polymerization with precision orientation control, anionic polymerization with precision structural control, and precision polymerization utilizing asymmetric metal porphyrin complexes. In the research and development of the orientation catalyst polymerization, the orientation catalyst polymerization was researched and developed, elementary reaction of metallocene was elucidated, high-performance carrier catalysts were developed, advanced function polymers were synthesized at high precision based on metathesis, and improvement of functions of polyolefin was researched and developed. Surveys and studies were carried out on fundamental technologies common to the above two themes re-commissioned to five universities. (NEDO)

  10. Fiscal 1997 survey report / R and D of important region technology. R and D of technologies giving multi-functional characteristics to C/C composites (development of high-grade surface processing technology for engine members for methane fueled air craft. 1. control technology of micro structures of ultra-high temperature members); 1997 nendo seika hokokusho juyo chiiki gijutsu kenkyu kaihatsu. Fukugo kino buzai kozo seigyo gijutsu no kenkyu kaihatsu (methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu). 1. chokoon buzai micro kozo seigyo gijutsu

    NONE

    1998-03-01

    For the purpose of developing members most suitable for aircraft use engines with methane as fuel, the R and D were conducted of technology to reform surfaces and interfaces of materials. In the R and D, the paper took up carbon fiber reinforced carbon composite materials (C/C composites). In the surface control and reformation technology using the ion engineering method, etc., in the sealing processing of C/C composites, tried was the formation of a C/SiC/Si3N4 composite layer which was formed by Si3N4 much smaller in thermal expansion coefficient than SiC. Further, technologies on ion injection, thin film formation, giving of oxidation resistance/corrosion resistance, improving/giving of thermal shock resistance, etc. In the multi-functional coating formation technology such as high liability and corrosion resistance, the study was carried out of the dense composite functionally-gradient layer as thermal stress relaxation layer and the fiber reinforced layer by carbon fiber using pores. Besides, studies were made of technologies of the micro structure control combination, evaluation of ultra-high temperature resistant environmental characteristics, etc. 61 refs., 198 figs., 44 tabs.

  11. FY 1999 report on the results of the technology development of super metal. Development of technology of high corrosion resistant iron-base fine structure controlling metal materials; 1999 nendo super metal no gijutsu kaihatsu seika hokokusho. Kotaishokusei tetsukei bisai kozo seigyo kinzoku zairyo gijutsu no kaihatsu

    NONE

    2000-03-01

    For the purpose of developing iron/steel materials which enable remarkable improvement of maintenance loads and longevity of oil field developmental materials, study was conducted for remarkable improvement of strength and corrosion resistance by making crystal grain of iron/steel materials micro-fine to the limit, and the FY 1999 results were summed up. The study was conducted on the technology of fine structure formation using strong magnetic field and technology to predict material quality of micro structure using computational science. As a result, it was found that the fine grain even in size can be obtained by a combination of magnetic field orientation and recrystallization. By this, an image was constructed of the industrialization process of fine grained steel production which was combined with warm rolling process and applied strong magnetic field. Using the method to homogenize the finite element method, the basement was established for the method to evaluate an effect of the second phase on mechanical characteristics of fine multi-phase structure steel. The cementite single-phase film which is an important structural phase of carbon steel was successfully formed, and the Young's modulus and Poison ratio were determined as basic data for material design. (NEDO)

  12. FY 1999 report on the results of the technology development of super metal (R and D of the undersea oil production support system). Development of technology of aluminum-base high corrosion resistant fine structure controlling metal materials; 1999 nendo super metal no gijutsu kaihatsu seika hokokusho. Kaitei sekiyu seisan shien system kenkyu kaihatsu (aluminium kei kotaishokusei bisai kozo seigyo kinzoku zairyo gijutsu kaihtsu)

    NONE

    2000-03-01

    For the purpose of developing aluminum materials excellent in industrial characteristics, a study was conducted to create large-sized aluminum materials having mesoscopic crystal structure, and the FY 1999 results were summarized. In this fiscal year, to create the fine crystal grain structure, the following were conducted: fundamental study of high strain accumulation process, study of a mechanism of fine crystal grain formation, development of the processing method, and development of evaluation technology. In the study of high strain accumulation process, effects were examined of conditions of molten metal rolling on castability. Fundamental studies were also made of innovative technologies such as ECAP method, pre-forged structure controlling rolling, accumulative roll bonding and thermomechanical treatment. In the study of the mechanism of fine crystal grain structure formation, the following were conducted: Al-Mn base alloys produced by molten metal rolling, 6061 alloys by warm rolling with different peripheral speed rolling, and 7000 group alloys by warm rolling. As to the processing method, study was made on low-temperature rolling technology and rapid heat treatment technology. As to the evaluation technology, study was made on evaluation of crystal grain diameter by EBSP. (NEDO)

  13. Report on results concerning development of supermetal technology (FY2000). Development of technology for high-anticorrosive iron-based microstructured metallic material; Super metal no gijutsu kaihatsu seika hokokusho (2000 nendo). Kotaishokusei tetsukei bisai kozo seigyo kinzoku zairyo gijutsu no kaihatsu

    NONE

    2001-03-01

    With the purpose of greatly improving strength and corrosion-resistance through ultra-refinement of crystal grains of steel materials, research was conducted on microstructure refinement technology utilizing strong magnetic fields and on mechanical property estimation technology for ultra-refined structure steel using computational science, with fiscal 2000 results compiled. In the research for grain refinement utilizing magnetic fields, an inline experiment of transformation was carried out and, as a result, equi-axed grains of 1.6 {mu}m were attained on a 3 mm thick steel plate of commercially used composition by a method of recrystallization after cold rolling. The experiment revealed that the 1 {mu}m grains could be obtained by setting cold-rolling work load to 80%. In addition, data were acquired relating to conditions such as steel composition affecting the formation of orientation in structures, work load and rolling temperature for areas to be recrystallized, holding temperature and time in the magnetic field, and intensity of the magnetic field. In the research for estimating mechanical properties of microstructures by computational science, a Monte Carlo simulation was carried out by employing the result of a polycrystal plasticity method program as the initial value, with a prototype established of the integrated simulation method from the deformation to the microstructure formation. (NEDO)

  14. Fiscal 2000 report on result of R and D of industrial science and technology that creates new industry. Development of supermetal technology (development of nano-amorphous structured material); 2000 nendo super metal no gijutsu kaihatsu seika hokokusho. Nano amorphous kozo seigyo zairyo no kaihatsu

    NONE

    2001-03-01

    R and D was conducted for the purpose of manufacturing innovative iron-based alloy materials that excel in high temperature strength, toughness and superplastic forming, with fiscal 2000 results compiled. In the technological study on high-speed grain accumulation and superplastic forming, the researchers were engrossed in developing an aluminum bulk material of nano-crystals. This year, an Al-Fe two-element based alloy using Fe element was evaluated in the composition, thermal processing conditions and physical properties, with a bulk material obtained having a grain size of several tens in nm at 2at% Fe level, a strength of 750-850 MPa and a tenacity (Kc value) of 45-65 MPa(center dot)m{sup 1/2}. In the research of technologies for utilizing and controlling high density energy, design of materials was progressed for strong-acid resistant dew point corrosion materials, leading to the discovery of an alloy composition Ni-10Cr-5Nb-16P-4B whose subcooled liquid zone was wider than the Ta-added alloy of the previous year. Use of He gas as injection gas enabled a quality amorphous powder to be obtained in kg units. In the development of bulk amorphous producing technologies, this powder was thermostatically rolled to make a dense bulk amorphous plate of 2.8 mm thick and about 100 mm long. (NEDO)

  15. 1998 report on results of technological development of super metal. Innovative technological development for producing advanced structure controlled metallic material (high-speed large reduction rolling technology); 1998 nendo super metal no gijutsu kaihatsu seika hokokusho. Kodo soshiki kozo seigyo kinzoku zairyo sosei gijutsu kaihatsu (kosoku daiatsuka atsuen gijutsu)

    NONE

    1999-03-01

    A report was made on the 1998 results concerning technological development of super metal. In the 'research and development of super metal', metallurgical examination has been made on crystal grain super refining process using a machining simulator, with studies carried out on crystal grain refining by utilizing large-strain deformation with more than 50% deformation for a single pass and a diploid structure. As a result, it was found that the crystal grain size can be refined to approximately 1{mu}m. Consequently, in fiscal 1998, a high-speed large reduction rolling test equipment was developed capable of rendering a sheathing technology in a mechanically testable size by a rolling method. This test equipment has such capacity as the maximum load of 1,000 ton and the maximum torque of 95 ton/m and is a rolling mill whose scale is largest in the nation on the laboratory level. The rolling speed can be 120mpm, a very fast speed for a large sized rolling mill. Moreover, equipped with an immediate water cooling facility adjacent to the rolls and an automatic operating system for example, it is a high function rolling mill capable of cooling and rolling that render the complex and delicate sheathing technology of super metal. (NEDO)

  16. Achievement report for fiscal 1998 on the development of super-metal technology. Development of technology of high corrosion-resistance iron base controlled microstructure materials; 1998 nendo super metal no gijutsu kaihatsu. Kotaishokusei tetsukei bisai kozo seigyo kinzoku zairyo gijutsu no kaihatsu seika hokokusho

    NONE

    1999-03-01

    During ultrafine structure formation due to transformation from austenite to ferrite in an intense magnetic field, the transformation is accelerated by the thermodynamic stabilization of the ferrite phase which is ferromagnetic. The application of an intense magnetic field works effectively during the generation of nuclei. When a magnetic field is applied during reverse transformation, a honeycomb 2-phase structure is formed oriented toward the direction of the magnetic field and, when the structure is vertically compressed, the recrystallized structure is made ultrafine effectively. In pearlite transformation, hardening occurs when carbon atoms supersaturated in density are introduced in the presence of a magnetic field gradient, and curing further promotes precipitation hardening. In a ferrite complex phase system, wherein ultrafine globular cementite is uniformly distributed, plastic instability becomes explicit in a tensile test. There is a good possibility that an ultrafine structure recrystallization model may be built by calculation, into which the distribution of energy stored prior to recrystallizing nucleus formation is incorporated. The profile of a conceptual process of off-line or in-line integration of heavy-strain process and intense magnetic field application has become tangible. (NEDO)

  17. FY 1998 annual report on the results of new industry creation type industrial science and technology research and development on the research and development of supermetals. Development of techniques for controlling structures of nano-amorphous materials; 1998 nendo super metal no gijutsu kaihatsu. Nano amorphous kozo seigyo zairyo no gijutsu kaihatsu

    NONE

    1999-03-01

    Described herein are the FY 1998 results of the development of techniques for controlling structures of nano-amorphous materials. For the development of techniques for finely dispersing fine particles, mechanical alloying (MA) and mechanical milling (MM) are investigated, to structure nano-crystals in common steel, for which hot isostatic pressing is evaluated as a consolidation process for the MA- and MM-prepared powders in the FY 1998. For researches on high-speed particle deposition and super plastic forming, an Al-Ni, Al-Fe and Al-Ti alloy are selected as the nano-structure materials to be prepared by evaporation, and various compositions of these systems are evaporated, in order to investigate their microstructures, mechanical properties and thermal stabilities. For researches on techniques for controlling phases with the aid of high-density energy, the R and D efforts are directed to exploration of composition of high resistance to corrosion by acid at dew point, preparation of non-equilibrium (e.g., amorphous) powders, and development of solidification and forming techniques, with the target of creation of an amorphous alloy showing corrosion resistance at least twice as high as that of the commercial corrosion-resistance material and formable into a bulk shape having a thickness of at least 1 mm. For researches on controlled cooling techniques, the basic data are collected. (NEDO)

  18. 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 (development of precise structure control materials for enhancement of oil refining); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (sekiyu seisei kodoka seimitsu kozo seigyo zairyo kaihatsu) seika hokokusho

    NONE

    1998-03-01

    The paper described the R and D of technologies for creating original high-functional materials under the R and D system of industrial scientific technology. Japan chemical Innovation Institute (JCII) is conducting intensive joint researches under consignment from NEDO with private companies, universities and national research institutes. Among those, the paper reported the fiscal 1997 results of the following two researches conducted as development of precise structure control materials for enhancement of oil refining: precision catalytic polymerization and multi-dimensional space polymer. As to the precision catalytic polymerization, the paper is aimed at developing base technologies for the molecular weight and stereoregularity by which remarkable improvement in performance of addition polymerization type polymer can be expected, and on the development of a polymerization catalyst which arbitarily controls the primary structure such as end group structure and of a precision addition polymerization process. Subthemes are addition polymerization with limit and oriented catalytic polymerization. In relation to multi-dimensional space polymer, the paper is aimed at developing highly selective polymerization technology of aromatic compounds using enzyme related catalysts and synthesis technology of regular structure polymer, and synthesis technology of new polymer group having a new chain pattern except covalent bond/new polymer group having characteristics in three-dimensional space geometric structure. 244 refs,, 160 figs., 94 tabs.

  19. Fiscal 1999 R and D project for industrial science and technology. R and D of technology for creating innovative and high-functional material - development of technology for structural control material (Report on result of R and D of harmonized molecular material); 1999 nendo dokusoteki kokino zairyo sosei gijutsu no keknkyu kaihatsu seika hokokusho. Kozo seigyo zairyo gijutsu kaihatsu (bunshi kyocho zairyo no kenkyu kaihatsu)

    NONE

    2000-03-01

    With the aim of contributing to the development of optical elements, devices, sensors, high performance catalysts, etc., R and D was conducted on fundamental technologies for creating materials using harmonized molecular actions, and the fiscal 1999 results were reported. In the R and D of self-assembled molecular film materials, an electric-field sensitive self-assembled molecular film was experimentally manufactured, as were self-assembling electroluminescent and lyotropic liquid crystal pigmentary film materials. In the R and D of mesophase materials, for rod-like liquid crystal systems, a material was successfully developed possessing a transparency of 90% in the visible region accompanied with an optical phase difference of 4.0 microns. For disk-like liquid crystal systems, a diminishing tendency of obtainable photoelectric current was confirmed even with a small change in the orientation after photopolymerization. In the R and D of microporous materials, synthesis was performed for system-controlled metallosilicates and shape-controlled microporous materials. Further, structural correlation was examined for organic templates and microporous materials. (NEDO)

  20. 1998 report on results of R and D project for industrial science and technology (R and D for technologies of producing innovative high performance material) (development of technologies for structural control material). R and D for high stimuli-responsive material; 1998 nendo dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (kozo seigyo zairyo gijutsu kaihatsu) kodo shigeki oto zairyo no kenkyu kaihatsu seika hokokusho

    NONE

    1999-03-01

    A report was made on the results of 1998 R and D concerning high stimuli-responsive materials. This R and D was intended to develop technologies for producing, by copying organism, innovative new stocks and new materials which repeatedly provide functions such as separating, transmitting and moving in response to stimuli. In the R and D of polymeric high stimuli-responsive materials, studies were conducted on multi-stimuli-responsive separation materials, molecular recognition controlled separation materials, and cell adhesion/separation materials with molecular recognition function. In the R and D of composite high stimuli-responsive materials, release controlled function materials and materials for actuator were studied. The investigation and research of common basic technologies were carried out on such subjects as synthesis and functional development of multi-signal responded polymer gels, development of temperature-responsive chromatography, synthesis and characterization of novel stimuli-sensitive materials, studies on structural characterization of intelligent gels, novel thermosensitive polymers, polyelectrolytic model networks, etc. (NEDO)

  1. Achievement report for fiscal 1998 on research and development of technologies for creating high-performance materials under the industrial and scientific technology research and development project. Control of condensation-based precision structures (High-performance materials for power plant facilities); 1998 nendo dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (hatsuden shisetsuyo koseinoka zairyo gijutsu kaihatsu) shukugokei seimitsu kozo seigyo no kenkyu kaihatsu seika hokokusho

    NONE

    1999-03-01

    The goal is to prepare a base for the development of polymerizing catalysts and precision polymerization processes which will enable the arbitrary control of molecular weight, regularity, branching, and primary structures such as terminal groups, which effort will lead to a remarkable advancement in condensation polymerization and open-ring polymeric material performance. Endeavors are on to fulfill two separate purposes, that is, precision condensation polymerization and controlled open-ring polymerization. In the study of precision condensation polymerization, at issue are basic studies and the development of precision control technologies for arrangement, molecular weight, branching, and matrix condensation polymerization. Also at issue are the development of technologies of position selective oxidization polymerization and precision conjugate high-molecular condensation synthesis. Concerning open-ring control polymerization, precision control technologies will be developed involving branching, molecular weight, crosslinking, arrangement, and the structure of cyclocarbonate open-ring polymerization. Open-ring control polymerization technologies are also under study by use of organic metal complexes. A survey of technological trends is also explained. (NEDO)

  2. Fiscal 1998 achievement report on regional consortium research and development project. Venture business fostering regional consortium in its 2nd year--Creation of key industries (Development of processing of new structure-designed high-performance polymer alloy); 1998 nendo shinkina kozo seigyo koseino kobunshi alloy no seikei kako ni kansuru kenkyu kaihatsu seika hokokusho. 2

    NONE

    2000-03-01

    Efforts are exerted to make novel recyclable polymer alloys excellent in material characteristic and to develop a technology for processing them, for which liquid crystalline polymers equipped with a self-alignment capability are combined with thermoplastic resins. In the research on the alloying of polyethylene terephthalate (PET) and liquid crystal polymers (LCP), studies are conducted about inorganic nucleating additives, thermostabilizers, and mold releasing lubricants, and a success is attained in the manufacture of excellent alloyed pellets. In the injection molding of alloys of PET and LCP, a product is obtained, among those produced with the rate of LCP varied, which behaves excellently even at a high resin temperature of 285 degrees C. It is found about PET/LCP alloys that improvement is achieved with additional LCP in terms of the warpage temperature under load, bending property, strength, and dimensional stability upon exposure to heat. In the study of the response of LCP-diffused PET to a process demanding distortion, an injection-molded product containing 10-20% of LCP is found to exhibit excellent ductility. It is also found that PET/LCP alloys may be cut and machined easily and that therefore their crushing for the recycling purpose will be easy. (NEDO)

  3. Fiscal 1997 project on the R and D of industrial scientific technology under consignment form NEDO. Report on the results of the R and D of technologies to invent original high-functional materials (technical development of structure control materials / R and D of molecular harmonized 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 (kozo seigyo zairyo gijutsu kaihatsu) bunshi kyocho zairyo no kenkyu kaihatsu seika hokokusho

    NONE

    1998-03-01

    By establishing microtechnology using molecular-level bottoming-up (molecular harmonization) by imitating the system of living organism, the paper described the R and D of molecular harmonized materials aiming at developing high-functional/high-performance materials such as high-performance catalyst, photo-information functional materials and sensing materials. Under consignment from NEDO, Japan Chemical innovation Institute started the 5-year plan in fiscal 1997. Self-assembled molecular films, in which organic molecules are orderly arranged by self-assembly, aim at developing new memory/optical/sensing materials. Mesophase materials which are such materials as liquid crystal showing the intermediate state between solid and liquid, develop optical/photoconductive materials using precise molecular orientation controllability. Macroporous materials are such substances as zeolite having molecular size micro pores. The paper aims at establishment of synthesis techniques of them and development of high-performance catalyst, etc. using them. In the comprehensive investigational research, conducted was a survey of the trend overseas in addition to a study of subjects in question. Further, the supporting basic study was reconsigned to universities, etc. 57 refs., 62 figs., 17 tabs.

  4. 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 structure control materials / R and D of multi-stimuli-responsive 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 (kozo seigyo zairyo gijutsu kaihatsu) kodo shigeki oto zairyo no kenkyu kaihatsu seika hokokusho

    NONE

    1998-03-01

    The paper described multi-stimuli-responsive materials out of the technology developments for creating original high-functional materials under the system of R and D of industrial scientific technologies. These are materials which repeatedly reproduce functions such as separation, penetration and movement in response to stimuli by imitating living organisms. In relation to polymer multi-stimuli-responsive materials, various copolymers were synthesized using N-acetyl (meta) acrylamide, of which the synthesis method was established in the previous fiscal year, as a main component, and thermal responsive polymer with upper critical solution temperature which becomes a base of separation functional materials was searched for. By immobilizing it with molecular recognition ligand, measured was thermal dependence of affinity of the immobilized matter to albumin. Also studied were molecular recognition cell adhesion/separation functional materials. Concerning composite multi-stimuli-responsive materials, with the use of silica microcapsule surface-immobilized with silane coupling agent, studied were the optimum conditions for immobilizing thermo-responsive polymer to the surface of the capsule. Using motion functional materials by ion exchange resin, obtained was motion functionality which is satisfactory at the state of practical use. 94 refs., 82 figs., 16 tabs.

  5. Development of a platoon driving AHS; AHS jikkensha ni okeru gunsoko seigyo no kaihatsu

    Seto, Y; Inoue, H [Nissan Motor Co. Ltd., Tokyo (Japan)

    1997-10-01

    Nissan and the Public Work Research Institute of the Ministry of Construction are developing an Automated Highway System. We are investigating a longitudinal control system in AHS. In this paper, a vehicle control method using two actuators an engine and a brake, is described. Experimental and simulated results are shown. A Platoon driving control method using road-to-vehicle and vehicle-to-vehicle communication is described. And the influence of the communication on the control performance is shown by experiments and simulation. The effects of the communication device and control device mentioned above are verified by experimental results in an AHS field test conducted in September 1996 on a dosed highway. 5 refs., 8 figs.

  6. Development and demonstration of optical polarization controller; Hikari henpa seigyo sochi no kaihatsu to jissho

    Kurono, M. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1997-04-01

    If fiber transmission light can be controlled in a stabilized polarization state, realization of coherent optical communication is anticipated. In the case of adopting it to OPGW, however, it is necessary to compensate high speed polarization variation caused by lightning strike. But this was difficult in the conventional method. Accordingly, a high speed polarization control method was proposed which uses an electric effect of lithium niobate (LN) crystals. In the study, a polarization control unit was manufactured based on the method proposed and the performance was demonstrated. As a result of measuring output light with input light changed in every state of polarization, the object horizontal polarization component obtained a stabilized light intensity at {+-}0.1dB, and a light intensity of the component slipped out of the horizontal polarization was suppressed under -20dB. To cope with the polarization variation by lightning strike, it is necessary to make the control delay 10{mu}sec or below, and improvement in processing unit, etc. may make it possible since LN crystals respond below 1{mu}sec. High speed control of the infinitely continuing arbitrary polarization variation became possible. 14 refs., 19 figs.

  7. Development of remote controlled blasting system for tunnels; Tunnel yo enkaku seigyo happa system no kaihatsu

    Suzuki, S.; Kawamura, M.; Hirosaki, Y. [NOF Corp., Aichi (Japan)

    1997-06-30

    A downsized wireless blasting system has been developed for tunnel construction in the mountainous districts. This system consists of an oscillator, loop antenna, and initiator. The ac magnetic field is generated in the loop antenna using 550 Hz ac generated by the oscillator, to induce the electro motive force between both ends of receiver coil in the initiator. It is stored in the capacitor after rectification, to initiate the detonator by discharging with the firing signal. This system has been developed by downsizing the conventional RCB (remote controlled blasting system) for underwater blasting, and unmanned operation is planned in future. An oscillation frequency, 550 Hz with an actual result has been adopted. The arm length of loop antenna is 3 m, which can be installed in the tunnel. Various receiver initiators were fabricated as a trial. A convex type was adopted due to its excellent receiving performance. The receiving performance was improved by increasing the magnetic induction and decreasing the power loss. After receiving voltage of the receiver initiator was confirmed, field initiation tests were conducted. Initiating and blasting were successfully carried out. 5 refs., 15 figs., 3 tabs.

  8. Studies on surface structures and mechanism of photocatalytic action of semiconductor oxides; Handotai hikari shokubai no hyomen kozo seigyo to sayo kiko kaimei ni kansuru kenkyu

    Takeuchi, H; Sona, S; Koike, H; Hori, H; Negishi, N; Kohara, H; Ibusuki, A [National Institute for Resources and Environment, Tsukuba (Japan); Vakhtin, A; Borovkov, V [New Energy and Industrial Technology Development Organization, Tokyo, (Japan)

    1997-02-01

    Studies are made to define the working mechanism of semiconductor photocatalysts such as TiO2 and to establish designing guidelines for improving on their activity and functions. TiO2 in the air actively produces oxygen seeds for the oxidation and removal of NOx, etc. It is desired that a catalyst have a specific surface area large enough to retain the product of its action. To meet the need, a thin-film photocatalyst which is an aggregate of TiO2 crystals is produced by burning a film of a sol/gel system of reaction doped with macromolecules. This product has a larger specific surface area and is higher in pollutant-removing performance, and may be put into practical use. In another experiment, metal-carrying particles TiO2 suspended in water are employed for the reduction of CO2. Though the main product of catalysts carrying Pt or Pd is methane, a photocatalyst carrying RuO2 produces acetic acid mainly and loses less activity with the passage of time. A hybrid photocatalyst is composed of an organic pigment and inorganic semiconductor, synthesized through a covalent bond between a sililated-surface thin TiO2 film and porphyrin. It is confirmed that the newly developed process brings about an increase in electron migration efficiency. 3 figs.

  9. Robust control system for belt continuously variable transmission; Robust seigyo wo tekiyoshita mudan hensokuki no hensokuhi servo kei no kaihatsu

    Adachi, K; Wakahara, T; Shimanaka, S; Yamamoto, M; Oshidari, T [Nissan Motor Co. Ltd., Tokyo (Japan)

    1997-10-01

    The continuously variable transmission control system consists of generation of a desired gear ratio and a servo gear ratio system. The servo gear ratio system must provide the desired response at all times without being influenced by external disturbances. These include oil pressure as well as variation in performance due to operating conditions or changes occurring with us. We have developed the servo gear ratio system incorporating a robust model matching method, which enables the belt continuously variable transmission to satisfy this performance requirement. 2 refs., 9 figs.

  10. Development of simulator for studying formation process of crustal structure. 1; Chikaku kozo keisei simulator no kaihatsu. 1

    Matsushima, J. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Murakami, Y.; Okubo, Y.; Matsubayashi, O.; Tanaka, A.; Nakajima, Y.; Morijiri, R. [Geological Survey of Japan, Tsukuba (Japan); Rokugawa, S. [The University of Tokyo, Tokyo (Japan)

    1997-05-27

    The purpose of this study is to combine seismic activity and volcanic activity by reproducing the formation process of the crustal structure from a physical viewpoint or developing as its extension a numerical simulator which can predict the future. The phenomenon to which attention is especially paid at present is a relation between the dynamic process and the thermal process in the domain including the crust or the upper mantle. Namely, to elucidate the formation process of the crust structure, diastrophism also including seismic activity, igneous activity, etc., it is important to evaluate effects of the behavior of heat supplied from the deep on the dynamic process. In the finite element method, it is not easy to make the effect of gravity reflect to the calculation for boundary conditions. Accordingly, it is general to pay attention to stress difference, considering that stress by gravity is in proportion to static rock pressure stress. Further, to realize interaction between the thermal process and the dynamic process, effects of thermal stress are expressed combining the heat conducting analysis and the plastic flow analysis. 3 refs., 7 figs.

  11. FY1995 studies on surface structures and mechanism of photocatalytic action of semiconductor oxides; 1995 nendo handotai hikari shokubai no hyomen kozo seigyo to sayo kiko kaimei ni kansuru kenkyu

    NONE

    1997-03-01

    Development of the semiconductor photocatalyst such as titanium dioxide is important for photo-energy conversion and purification of the environment. We make clear that the mechanism of the photocatalysis using a spectroscopic or physico-chemical methods, and we developed the new photocatalyst with the control of the surface area, porosity, infinitesimal content, and surface modification of the catalyst surface. Titanium dioxide thin film photocatalysts were prepared by the dip coating method. Surface structure of the thin film was formed by the aggregated TiO{sub 2} anatase particle, its size was around 5 nm. This thin films effectively oxidazed NO, its photocatalytic activity is higher than that of commercial photocatalyst. Metal oxide anchored TiO{sub 2} photocatalysts (RuO{sub 2}/TiO{sub 2}) were prepared by the co-precipitation method. Effective charge separation of the RuO{sub 2}/TiO{sub 2} were confirmed by the measurement of ESR. The RuO{sub 2}/TiO{sub 2} photocatalyst successfully reduced CO{sub 2} and preserved its activity for much longer period than metal loaded catalyst. Hybrid photofunctionalized material was prepared by anchoring porphyrin moieties on the titanium dioxide surface. The relative quantum yield of electron transfer from porphyrin to the titanium dioxide conduction band has been markedly increased by water treatment of quanternized porphyrin-titanium dioxide covalently linked systems owing to removal of adsorbed porphyrin domains. (NEDO)

  12. FY 2000 report on the results of the research and development project for new industry creation type industrial science technologies. R and D of the intellectual material and structural systems (R and D of the intellectual material and structural systems); 2000 nendo shinki sangyo soshutsugata sangyo kagaku gijutsu kenkyu kaihatsu seika hokokusho. Chiteki kozo system no kenkyu kaihatsu (chiteki kozo system no kenkyu kaihatsu)

    NONE

    2001-03-01

    Described herein are the FY 2000 results of the R and D project for development of intellectual materials and structural systems, where the fibrous or leafy sensor material or element (muscle) is integrated with a structure of an advanced material (skeleton) to process and control information (brain). The program for development of the health monitoring technologies successfully improves the fine FRG (Fiber Bragg Grating) as the high-performance sensor, equipped with a connector which allows the sensor to be easily connected to the normal diameter one, and develops various prototype sensors. The program for self-diagnosis of structural soundness and controlling damages verifies detection effectiveness of the embedded fine FRG sensor. The impact-related characteristics and damages of the reinforced flat plate are detected by embedding the optical fiber sensor. The program for developing the actuator materials and elements prepares the 20{mu}m thick piezoelectric sheet of adequate strength and toughness by dispersing the PNN-PZT system with partially stabilized zirconia (PSZ). The program for the function-gradient systems prepares the FGM driven at normal temperature, characterized by its structure of more evenly distributed stress, to evaluate its characteristics. It is proved to have high durability. The results of the comprehensive survey are also described. (NEDO)

  13. Fiscal 1997 report on the results of the international standardization R and D. Robot control system; 1997 nendo seika hokokusho kokusai hyojun soseigata kenkyu kaihatsu. Robot seigyo system

    NONE

    1998-03-01

    R and D of the robot control system was conducted in the following items: 1) integrated open control system, 2) remote control robot manipulation language, 3) human factor robot use built-in LAN system, 4) built-in actuator driver. In 1), there were some problems to be pointed out around the system, but the effectiveness was confirmed as system architecture of each verification item. In 2), development/design were made of RCML(R-Cube Manipulation Language) as a remote robot manipulation language, telecommunication protocol, and the experimental system, and the international standardization was targeted. In 3), the R and D was conducted of the realtime telecommunication protocol which clears the standards for the distributed control required for construction of human factor robot and the advanced realtime micro-controller, ULSI, which is the one that the protocol was made IC. In 4), an intelligent connector for built-in actuator was developed which enables saving of wiring in robot system and plug-in connection. 13 refs., 186 figs., 53 tabs.

  14. Development of combustion management concept for natural-aspirated small diesel engine; Shizen kyuki kogata diesel engine no nensho seigyo concept no kaihatsu

    Wada, T; Kawano, T; Shoji, M; Kuniyosh, M; Yamashita, O; Nagao, A [Mazda Motor Corp., Tokyo (Japan); Yoshikawa, S [Zexel Corp., Tokyo (Japan)

    1997-10-01

    We have developed a combustion management concept for natural-aspirated small IDI diesel engines and achieved higher power, lower exhaust emissions and more comfort. The concept is related to improvements of intake volumetric efficiency, EGR effect, mixture formation caused by combustion chamber and spray characteristics, engine management system and after treatment device. This paper describes the concept and experimental results. 3 refs., 14 figs., 1 tab.

  15. Report on achievements in fiscal 1999. Research and development of nanometer controlled optical disk system; 1999 nendo nanometer seigyo hikari disk system no kenkyu kaihatsu seika hokokusho

    NONE

    2000-03-01

    Organizational strengthening is urged in industrial technological power in information recording area which is comparable with information communications being the main pillar of the innovation in the information technology in Japan. Extremely large expectations and heavy responsibilities are placed on the next generation optical memory technology, which is one of the strong points of Japan who plays a part in the above information recording area. The present project has been performing organizational research and development to achieve creation of new industries, with the following research themes as the main subjects: (1) nanometer controlled optical memory technology, (2) magnetic section responsive and three-dimensional optical memory, (3) ultra precision pit depicting technology, and (4) ultra precision pit measuring technology. The project is two years old this year, in which it was aimed to 'develop an optical memory technology with recording density of 100 Gb/in{sup 2} or more, transfer velocity of 100 Mbps or higher, and access time of 10 ms or less'. In order to achieve and establish the interim target set for fiscal 2000 among the above aims, intending 'trial fabrication of a disk having recording density of 40 to 50 Gb/in{sup 2}, the technical problem extraction and the specifications to realize a 100 Gb/in{sup 2} system', fiscal 1999 has performed researches on 'density and accuracy improvement on the prototype disk by improving the existing devices and introducing new devices'. This paper reports the developmental research theme No. 1. (NEDO)

  16. Achievement report on research and development of optics-aided measurement/control system; Hikari oyo keisoku seigyo system no kenkyu kaihatsu ni kansuru hyoka hokokusho

    NONE

    1986-03-01

    The project aims to establish technologies for putting the above-named system to practical use. Such a system will measure, transmit, and control, with safety and stability by use of optical technologies, industrial process related information to be generated in certain areas such as industrial complexes and very large plants, the information including images, temperatures, flow rates, constituents, etc. Total system evaluation was performed in demonstration tests for appropriateness conducted for 32 systems in fiscal 1980 and 10 systems in fiscal 1981. Studied in the development of element technologies are opto-electronic integrated circuits (OEIC), semiconductor laser devices, light-intercepting devices, optical transmission paths, dielectric light switches, and optical sensors. For OEIC, in particular, since it is believed to be the nucleus of an optical application system, an optical technology joint research office is established, where efforts center on the substrate crystal growth technology, process technology, and crystal/process evaluation technology. (NEDO)

  17. Fiscal 2000 achievement report on the research and development of nanometer controlled optical disk system; 2000 nendo nanometer seigyo hikari disk system no kenkyu kaihatsu seika hokokusho

    NONE

    2001-03-01

    Development proceeded of nanometer controlled optical memory technologies as part of systematic research and development aiming at the reinforcement of industrial technology power in the field of data recording. Activities were conducted in the four fields of (1) high density signal processing technology, (2) high performance disk materials technology, (3) disk substrate fabrication technology, and (4) signal detection technology. Discussed in field (1) were multivalue ROM (read only memory) disk signal regeneration, SIL-LBR (solid immersion lens-laser beam recorder), dry etching process using RIE (reactive ion etching), SHG (second harmonic generation) blue laser, and a multivalue ROM disk evaluation system. Studied in field (2) were the evaluation of ROM disk performance dependent on recording materials, development of high density recording materials, and the evaluation of crystallization induction time using a static tester. Studied in the development of high density recording materials was the formation of microscopic recording marks in a phase shift/surface recording type disk comprising a 4-element (Ag-In-Sb-Te) recording layer and an Ag reflection layer. In fiscal 2000, an attempt was made at the 0.07 {mu}m level. (NEDO)

  18. FY 1998 report on the results of the project on the next generation structure housing development; 1998 nendo jisedai kozo jutaku kaihatsu jigyo seika hokokusho

    NONE

    2000-03-01

    The purpose of this project is to develop/verify technology to design/construct a structural body of multiple dwelling house which is highly durable and usable at maximum of the limited space with no projections of poles/beams, and is also to develop/verify a composite system of a structure and each house in which residential space can freely be changed horizontally/vertically in response to the leveling-up of living and changes in life style. The following were conducted: construction of an experimental house group with next generation structure; development of technology of effective space utilization/high durability body construction; development of technology of structural analysis/design systematization of antiseismic/damping system; development of commercialization of technology to heighten frame durability, development of technology to heighten durability of finishing materials of a body; development of low cost construction technology; development of technology of interface between a body and each house; verification of housing performance using a next generation body system; generalization of next generation frame system/house system. To reflect the results of the research quickly, the details of the research are systematized, and a draft is worked out of a guide for constructing the next generation frame system/house system which were arranged between the current architecture related laws and business as a general multiple dwelling house. (NEDO)

  19. Structural studies on reaction centers from thermophilic photosynthetic bacteria and its functional utilizations. Tainetsusei kogosei saikin ni yuraisuru kogosei hanno chushin no kozo kaimei to kino kaihatsu

    Nozawa, T; Morishita, Y; Kobayashi, M; Kanno, S [Tohoku University, Sendai (Japan). Faculty of Engineering

    1992-10-31

    This paper describes the results of the experiment in which crystallization of protein of reactive center purified from the photosynthetic film of thermophilic purple sulfur photosynthetic bacterium Chromatium tepidum whose hyrogen donor in photosynthesis is H2S instead of H2O was attempted. Crystallization was carried out by the vapor diffusion method and particularly by using ethylene glycol as precipitator at 4[degree]C after various investigations on the conditions of crystallization. By X-ray diffraction, this crystal was found to belong to the rhombic system, and it was estimated that the lattice constants, a, b, c equal to 140[angstrom], 190[angstrom] and 80[angstrom] respectively. This bacterium is a thermophilic bacterium having the optimum growth temperature of 48-50 [degree]C and utilizes CO2 or H2CO3 as corbon source, ammonium, urea etc. as nitrogen source and thiosulfate as sulfur source. Moreover, another purpose of this investigation was to determine the thermophilic location by elucidating its configuration (although, as a result, the analysis of configuration had no sufficient resolution). It was confirmed that the enzyme system of photosynthetic film and its cytoplasm obtained by ultrasonic spallation of this cell have CO2 fixing activity utilizing light energy. 23 refs., 14 figs., 3 tabs.

  20. 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)

    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)

  1. 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

    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)

  2. Research and development of basic technologies for next generation industries, 'high-performance crystalline controlled alloy'. Evaluation on final research and development (final report); Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Koseino kessho seigyo gokin (saishu kenkyu kaihatsu hyoka 2)

    NONE

    1989-05-01

    A proposal was given on a new processing process to use Ni-group super alloy, and elucidation was given on super plasticity phenomenon by using non-destructive tests. The Ni-group super heat-resistant alloy Mod. IN-100 subjected to different preforms by means of extrusion was given a super plasticity test at 1,050 degrees C to derive total elongation and 'm' value. As a result, it was disclosed that a material annealed for one hour at 1,070 degrees C after extrusion of 70% at 1,100 degrees C possesses the maximum 'm' value in the vicinity of 2.0 times 10{sup -2}s{sup -1}. The largest key to the new processing method is to improve the nature of the material, in which the plasticity manifestation velocity is accelerated by ten times to the order of 10{sup -2}s{sup -1} as described above. In addition, forging of IN-100 was made possible by using the ordinary forging equipment with the use of two-fold measures. The measures consist of maintaining temperature of IN-100 during casting by heating the die material to about 600 degrees C, rather than keeping it at a constant temperature, and then packing IN-100 in S35C steel material to accommodate the temperature decrease during casting inside the S35C pack. Thus, a processing method was made practical, eliminating need of the forging process to compress and solidify powder itself, that is the extrusion process. (NEDO)

  3. Development of large scale wind energy conservation system. Development of control techniques for assembly-type wind power generating systems; Ogata furyoku hatsuden system no kaihatsu. Shugogata furyoku hatsuden system no seigyo gijutsu no kaihatsu

    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 development of control techniques for assembly-type wind power generating systems. The study on optimum system configuration produces 50 to 100kW wind power units for screening small-size wind power plant types, and, at the same time, surveys performance of commercial units and experiences of 9 makers capable of producing the above units. As a result, 3 MICON`s units (output: 100kW, active YAW control, monopole tower, maximum wind speed: 60m/s) are selected. The study on optimum operational techniques integrates 2 medium-size power units into a power line, showing a service factor of 30.2% on the annual average, monthly varying in a range from 11.8 to 45.0%. These units, installed in Miyako Island, were attacked by 3 typhoons of wind velocity of 25m/s or higher in 1994, and the only damage recorded is that of the anemoscope/anemometer. It is found that No.1 unit is located at a better geographical point than the No.2 unit, to produce a higher output. 3 figs., 3 tabs.

  4. Research and development of a superconducting flywheel power storage system in fiscal 1998. Research and development of rotation control technology; 1998 nendo koon chodendo flywheel denryoku chozo kenkyu kaihatsu. Kaiten seigyo no kenkyu kaihatsu

    NONE

    1999-05-01

    Element technology research was performed on 'rotation control' aimed at practical application of a 10-MW class high-temperature superconducting flywheel power storage system. As part of the research, researches were carried out on small-size and middle-size models, low-loss control type magnetic bearing, and large-size models. For the small-size model, as a result of performing performance tests on the protective bearing by using a testing machine, it was revealed that the model is free of problems in the test for up to 5000 rpm. For the middle-size model, fabrication and installation were completed on a middle-size rotation control testing equipment having CFRP-made flywheel with a diameter of 1 m. In the control type bearing, as a result of adopting a homo-polar type magnetic pole, the rotation loss was reduced to about 1/5 of that of a hetero-polar type. The amount is about 75 W (12000 rpm) when the bias current is 1.5 A. Concept design was implemented on a 2-MWh flywheel bearing system supported with a high-temperature superconducting magnetic bearing as a full-size flywheel. The CFRP-made flywheel has a diameter of 4 m, and a circumferential velocity of 1200 m. (NEDO)

  5. Fiscal 2000 survey report. Development of nucleation control technology for new functional alloy creation and development of new process; 2000 nendo kinosei shingokin sosei no tame no kaku seisei seigyo gijutsu kaihatsu oyobi shin process kaihatsu chosa hokokusho

    NONE

    2001-03-01

    For the above-said purposes, studies were conducted involving the construction of a database on supercooling and nucleation and on alloy species and functionality. Composition, concentration, supercooling method, container, atmosphere, maximum degree of supercooling, cooling rate, and the contents of the study to be made were investigated in the study of items for databasing. Also, in an experiment dealing with alloy species remaining to be exploited, the coagulation of drop size GaSb alloy was investigated. In the study of the formation of a quasi-stable phase in functional alloy, it was demonstrated that a nonequilibrium or quasi-stable phase might be quantitatively formed by use of a containerless process. In the study of texture control, texture fining by causing flowability was particularly investigated, and it was suggested that not only nucleation but also growth to follow should be properly controlled for the fining of coagulated texture. In the study of simulation of texture prediction, construction of a database on practical alloy nucleation frequency and stochastic simulation of coagulated texture to be built on this database were taken up. (NEDO)

  6. Research and development of basic technologies for next generation industries, 'high-performance crystalline controlled alloys'. Evaluation on final research and development (first report); Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Koseino kessho seigyo gokin (saishu kenkyu kaihatsu hyoka 1)

    NONE

    1989-05-01

    The present research work has been performing research and development of the following alloys: (1) 'single crystalline alloy' , the entire alloy being composed of one crystal eliminating crystalline boundaries as an ultra heat resistant alloy with emphasis placed on improvement in particularly the creep properties, and 'particle dispersion strengthened alloy', in which ultrafine particles of oxides are dispersed uniformly; and (2) 'ultra heat resistant and tough alloy' targeted at high-temperature toughness by using Ni-group allowing ultra plasticity forging processing by micronizing crystal particles, as an ultra plastic and highly tough alloy having better processibility than conventional alloys, and 'light-weight highly tough alloy' aimed at achieving light weight and high toughness by using Ti-group. Achievements derived from the present research and development may be summarized as follows: in alloy development, alloys having performance of the world's highest level or equivalent have been developed; a manufacturing technology to make products with complex shapes has been established by using the alloy material manufacturing technology and the alloy materials developed therefrom, where prototype components of such shapes as turbine blades and turbine disks for jet engines were fabricated successfully; and the big fruit obtained was that a large number of technological experiences were acquired from this research and development. (NEDO)

  7. FY 1999 report on the results of the research and development project for new industry creation type industrial science technologies. R and D of the intellectual material and structural systems (R and D of the intellectual material and structural systems); 1999 nendo shinki sangyo soshutsugata sangyo kagaku gijutsu kenkyu kaihatsu seika hokokusho. Chiteki zairyo kozo system no kenkyu kaihatsu (chiteki zairyo kozo system no kenkyu kaihatsu)

    NONE

    2001-03-01

    Described herein are the FY 1999 results of the R and D project for development of intellectual materials and structural systems, where the fibrous or leafy sensor material or element (muscle) is integrated with a structure of an advanced material (skeleton) to process and control information (brain). The program for development of the health monitoring technologies develops the fine optical fiber (diameter: 40{mu}m), which is on a level with the conventional 125{mu}m-diameter fiber in strength and fatigue characteristics, for the high-performance sensor systems. The self-diagnosis of soundness, e.g., detection of impact loads and damages, is attempted using the fine optical fibers embedded in the composite structures. The program for active-adaptive control of smart structures investigates control of vibration and noise for beam structure elements, using the theoretical model developed for shape memory alloys. The vibration tests are conducted, where a distribution type sensor is used for active-adaptive control of soft structures, and the good results are produced. The program for development of actuator materials and elements produces high-strength, high-toughness PZT and PNN-PZT sheets of uniformly distributed thickness by the doctor blade method. (NEDO).

  8. FY 2000 report on the results of the research and development project for new industry creation type industrial science technologies. R and D of the intellectual material and structural systems (Development of technologies for rational use of energy); 2000 nendo shinki sangyo soshutsugata sangyo kagaku gijutsu kenkyu kaihatsu seika hokokusho. Chiteki zairyo kozo system no kenkyu kaihatsu (energy shiyo gorika gijutsu kaihatsu)

    NONE

    2001-03-01

    Described herein are the FY 2000 results of the R and D project for development of intellectual materials and structural systems, as part of development of technologies for rational use of energy. The program for development of health monitoring technologies produces the bright prospects for commercialization of the fine FBG (Fiber Bragg Grating) sensor which can be embedded in a CFRP prepreg, and establishes the crack detecting method. The program for development of smart manufacturing technologies describes the dielectric constant sensor capable of monitoring the curing process, detection of the cured conditions by the optical fiber sensor, and development of the performs by RTM (Resin Transfer Molding). The program for technological development of the active-adaptive structures conducts the vibration- and noise-controlling tests for the small-size structural elements, confirming that the damping coefficient is improved by at least 20% and acoustic power is reduced by at least 30%. The program for developing the actuator materials and elements improves the piezoelectric characteristics of the PZT-based materials by hybrid sintering, and develops the actuators of high-durability FGM (Function-Gradient Materials). It also develops the foil- and belt-shaped shape memory alloys by arc-aided dissolution and rapid solidification of Ti-Ni-Cu-based alloys. (NEDO)

  9. Fiscal 1998 research report on the R and D on industrial science and technology for creating new industries. R and D on intelligent material and structure systems (Development of practical technology for rational use of energy); 1998 nendo shinki sangyo soshutsugata sangyo kagaku gijutsu kenkyu kaihatsu seika hokokusho. Chiteki zairyo kozo system no kenkyu kaihatsu (energy shiyo gorika kankei gijutsu jitsuyoka kaihatsu)

    NONE

    1999-03-01

    As a part of development of intelligent material/structure systems, study was made on practical technology for rational use of energy. For resource saving and energy saving (smartening) for large and complex machines and structure systems, light-weight long-life materials/structures are indispensable. Study was thus made on the basic technology of material/structure systems equipped with realtime defect detection function, structural integrity diagnosis function and control function of noise and vibration through information processing and control by integrating composite material/structure and fiber or film sensor material/device. For development of smartening technology, sensing technology was studied to detect the interior structure of composite material/structure compacts. The basic fabrication technology of ceramic actuator materials/devices, and shape memory alloy system actuators were put into development. Smooth connection and cooperation among groups were promoted through the technical committee and research on domestic and overseas trends for forming common knowledge. (NEDO)

  10. FY 2000 Development of technologies for optimization control of reducing power loss during the service period. Report on the research and development results of the 'building total cooperation control by micro-internet technologies'; 2000 nendo kadoji denki sonshitsu sakugen saiteki seigyo gijutsu kaihatsu seika hokokusho. Micro internet gijutsu ni yoru biru total kyocho seigyo

    NONE

    2001-03-01

    The research and development project is implemented for development of the energy-saving optimization/control system which continuously monitors/controls all of the energy-consuming appliances in a building for their optimization, and the FY 2000 results are reported. The program for the sensing technologies involves a human tracking system aided by fish-eye images and human region sensing technologies based on the neuro technologies, and introduces an animated image simulation system aided by a personal computer. The researches on the building total cooperation control involve establishment of the system designs for controlling heat sources, based on the thermal loads predicted by the information network system. The researches on the micro-internet technologies involve development of the prototype unit which collects information from indoor environment sensors (e.g., for room temperature, luminous intensity and CO2 concentration), and interface devices which collect information from the sub-systems, e.g., air conditioners and heat sources. These systems are completed. The demonstration and assessment program involves designs of the instrumentation systems and network environments. The designs are completed, and various sensors and monitors are installed. (NEDO)

  11. FY 2000 Development of technologies for optimization control of reducing power loss during the service period. Report on the research and development results of the 'building total cooperation control by micro-internet technologies'; 2000 nendo kadoji denki sonshitsu sakugen saiteki seigyo gijutsu kaihatsu seika hokokusho. Micro internet gijutsu ni yoru biru total kyocho seigyo

    NONE

    2001-03-01

    The research and development project is implemented for development of the energy-saving optimization/control system which continuously monitors/controls all of the energy-consuming appliances in a building for their optimization, and the FY 2000 results are reported. The program for the sensing technologies involves a human tracking system aided by fish-eye images and human region sensing technologies based on the neuro technologies, and introduces an animated image simulation system aided by a personal computer. The researches on the building total cooperation control involve establishment of the system designs for controlling heat sources, based on the thermal loads predicted by the information network system. The researches on the micro-internet technologies involve development of the prototype unit which collects information from indoor environment sensors (e.g., for room temperature, luminous intensity and CO2 concentration), and interface devices which collect information from the sub-systems, e.g., air conditioners and heat sources. These systems are completed. The demonstration and assessment program involves designs of the instrumentation systems and network environments. The designs are completed, and various sensors and monitors are installed. (NEDO)

  12. 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

    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)

  13. Report on achievements of research and development of an automatic sewing system in fiscal 1985. System management and control technology; 1985 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. System kanri seigyo gijutsu

    NONE

    1986-03-01

    This paper describes the system management and control technology, extracted from the achievement report for fiscal 1985 on developing an automatic sewing system. The comprehensive system management has verified algorithms for the optimal process formation and load balancing based on the industry's latest market and production plan trends, and obtained good results. Furthermore, structuring, discussions and proposals were made on an interface system of an optimal process controlling computer with an automatic device controlling micro computer. The inspection and failure diagnosis have set a quality standard for intermediate products in the sewing lines, and verified that its automation is possible by using an image processing technology that identifies dimensional inspection and colors. In the research of printing control information, calculations were performed on the information amount, printing locations, expression method and printing speed, narrowing down to parts ID and location information as the required printing information. Thus,items of basic information for media, media printing and printing device design were put into order. The information recognizing technology has picked up image recognition applying locations in a sewing factory and problems therein, and performed evaluation experiments on specific pattern matching and processing position recognition to have obtained the prospect of application of the automation. (NEDO)

  14. Fiscal 1999 achievement report. Development of technologies for creating high-quality crystalline materials for low-loss power control devices; 1999 nendo teisonshitsu denryoku seigyo soshiyo kohinshitsu kessho zairyo sosei gijutsu kaihatsu seika hokokusho

    NONE

    2000-03-01

    Researches are conducted for the advancement of, and loss reduction for, semiconductor devices for controlling electric power. Physical properties of molten semiconductors etc. are accurately measured in a microgravity environment and computer simulations are performed, which are for the production of larger-diameter, higher-quality semiconductor crystal materials. In the measurement of physical properties of molten semiconductors etc. carried out at JAMIC (Japan Microgravity Center) free-fall facilities where a high-quality microgravity environment is available, measurements are made of the surface tension, density, viscosity index, heat conductivity, and vertical spectral factor of the molten silicon. Solubility is measured of silica, silicon nitride, and silicon carbide, and, in equilibrium with these, the oxygen, nitrogen, and carbon in molten silicon, and highly reliable data are obtained. As for the comprehensive analysis code developed under this subject, the X-ray image data of the surface of a solid solution, collected from a crystal growing in a small Cz furnace at the NEC Fundamental Research Laboratories, and data of oxygen concentration in the silicon crystal agree excellently with the result of calculation, which suggests that the code is reliable. (NEDO)

  15. 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

    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)

  16. FY 1999 Report on research and development project. Research and development of high-temperature air combustion technology; 1999 nendo koon kuki nensho seigyo gijutsu kenkyu kaihatsu seika hokokusho

    NONE

    2000-03-01

    The high-temperature air combustion technology recently developed greatly advances combustion technology. The technology, when applied to the other areas, may expand its applicable areas and contribute to environmental preservation, e.g., abatement of CO2 emissions. This is the motivation for promotion of this project. The combustion technology, developed by improving functions of industrial furnaces, cannot be directly applied to the other combustion heaters. This project is aimed at extraction of the problems involved, finding out the solutions, and thereby smoothly transferring the technology to commercialization. This project covers boilers firing finely pulverized coal, waste incineration processes and high-temperature chemical reaction processes, to which the new technology is applied. It is also aimed at establishment of advanced combustion control basic technology, required when the high-temperature air combustion technology is applied to these processes. In addition to application R and D efforts for each area, the basic phenomena characteristic of each combustion heater type are elucidated using microgravity and the like, to support the application R and D efforts from the basic side. This project also surveys reduction of environmental pollutants, e.g., NOx and dioxins. This report presents the results obtained in the first year. (NEDO)

  17. FY1995 development of a clean CVD process by evaluation and control of gas phase nucleation phenomena; 1995 nendo kisokaku seisei gensho no hyoka to seigyo ni yoru clean CVD process no kaihatsu

    NONE

    1997-03-01

    The purpose of this study is to develop a high-rate and clean chemical vapor deposition (CVD) process as a breakthrough technique to overcome the problems that particles generated in the gas phase during CVD process for preparation of functional thin films cause reduced product yield and deterioration of the films. In the CVD process proposed here, reactant gas and generated particles are electrically charged to control the motion of them with an electric field. In this study, gas-phase nucleation phenomena are evaluated both theoretically and experimentally. A high-rate, ionized CVD method is first developed, in which reactant gas and generated particles are charged with negative ions generated from a radioisotope source and the UV/photoelectron method, and the motion of the charged gas and particles is controlled with an electric field. Charging and transport processes of fine particles are then investigated experimentally and theoretically to develop a clean CVD method in which generated particles are removed with the electric forces. As a result, quantitative evaluation of the charging and transport process was made possible. We also developed devices for measuring the size distribution and concentration of fine particles in low pressure gas such as those found in plasma CVD processes. In addition, numerical simulation and experiments in this study for a TEOS/O{sub 3} CVD process to prepare thin films could determine reaction rates which have not been known so far and give information on selecting good operation conditions for the process. (NEDO)

  18. Achievement report for fiscal 1998. Research and development of super-functional environment-resistant materials by controlling trace metal ion implantation; 1998 nendo seika hokokusho. Gokubiryo kinzoku ion chunyu seigyo ni yoru chokino taikankyo zairyo no kenkyu kaihatsu

    NONE

    1999-03-01

    The aim was to develop reliable materials high in resistance to hostile environments, greatly improved in their resistance to oxidation, abrasion, and corrosion at high temperatures. To achieve the goal, trace quantities of high melting point metals were implanted into the compound formed on the substrate surface or deep into the substrate material. This year's research and development is outlined below. Important technologies in the ion process involved materials which at high temperatures were very resistant to oxidation, abrasion, and corrosion. The high-temperature oxidation resistant material was studied for use with the automobile supercharger rotor. The study on the high-temperature abrasion resistant material involved Ti-N thin coatings: the optimization of coating conditions, slidability at room temperature, and slidability in a high-temperature atmosphere. As for the high-temperature corrosion resistant material, studies were made to use it for refuse-fueled power generation. The TiAl material was also studied: the effect of ion implantation on the improvement of its high-temperature oxidation resisting capability, analysis into oxidized alloy surface properties, ion implantation into complicatedly shaped items and the optimum material for them, and the surface treatment by ion beams for improving resistance to high-temperature corrosion. (NEDO)

  19. Report on achievements of research and development of an automatic sewing system in fiscal 1986. System management and control technology; 1986 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. System kanri seigyo gijutsu

    NONE

    1987-03-01

    The Automatic Sewing System Technology Research Association was commissioned from the Agency of Industrial Science and Technology on the 'development of an automatic sewing system'. The association is performing the research and development by dividing the subject into such component technologies as a total system and sewing preparation and processing technology, a sewing and assembling technology, a cloth handling technology, and a system management and control technology. This paper reports the achievement of the research and development on the system management and control technology. Plans have been established on the following items: dimensional inspection of sewn parts by using an image processing technology, real-time processing of the matching work interlocked with a striped pattern cloth handling device, and a processing positioning algorithm to instruct sewing lines and needle dropping points based on contour lines of pockets and collars. The effects thereof were verified. Printing seven-segmented numerals on cloth by using fluorescent whitener and an automatic reading test of the printed information verified that the technology can be applied to tracking the parts in a processing line as an ID information. Researches were also made on unification of micro-computers for controlling such automatic machines as a multi-functional sewing machine, a three-dimensional sewing machine, and a cloth handling and positioning device, as well as on interface with the computer for function sharing management and control. (NEDO)

  20. Report on results 1998. Technological development to create high quality crystal material for low loss power controlling element; 1998 nendo seika hokokusho. Teisonshitsu denryoku seigyo soshiyo kohinshitsu kessho zairyo sosei gijutsu kaihatsu

    NONE

    1999-03-01

    This paper refers to the development of basic technology for manufacturing crystal materials of a large diameter and uniform properties for the purpose of sophistication and low loss of semiconductor controlling elements for electric power. An experiment was conducted using the drop tower of the underground agravity center. Results in fiscal 1998 were explained. With counter-measures taken in for improving measuring accuracy of an electromagnetic floating furnace, the accumulation and evaluation were performed of the highly reliable data of the surface tension and density of Si. The measurement of the viscosity coefficient of Si under micro-gravity was successful for the first time in the world, as was the measurement of the contact angle between solid/liquid, other than the measurement of specific heat, thermal conductivity and spectral emissivity of Si. The viscosity coefficient, unlike the conventional report, showed Arrhenius' linearity. In the comupter simulation, boundary data were exchanged between element analysis programs, developing a basic general analysis program as scheduled. The result of a micro simulation by molecular dynamics method was in agreement with the observation result by a transmission type electron microscope, bringing the first success in the world. In the Cz furnace model experiment, effect of rotation for example was elucidated on turbulence in the melt by using lasers. (NEDO)

  1. Development of mathematical model and optimal control system of internal temperatures of hot-blast stove process in staggered parallel operation; Netsufuro sushiki model to parallel sofu ni okeru ronai ondo saiteki seigyo system no kaihatsu

    Matoba, Y. [Sumitomo Metal Industries, Ltd., Osaka (Japan); Otsuka, K.

    1998-07-01

    A mathematical model and an optimal control system of hot-blast stove process are described. A precise mathematical simulation model of the hot-blast stove was developed and the accuracy of the model has been confirmed. An optimal control system of the thermal conditions of the hot-blast stoves in staggered parallel operation was also developed. By the use of the multivariable optimal regulator and the feedforward compensations for the change of the aimed blast temperature and blast volume, the system is able to control the hot blast temperature and the brick temperature efficiently. The system has been applied to Kashima works. The variations of the blast temperature and the silica brick temperature have been decreased. The ultimate low heat level operations have been realized and the thermal efficiency furthermore has been raised by about 1%. 8 refs., 14 figs., 1 tab.

  2. Achievement report for fiscal 1998. Research and development of nano-structural materials for ceramic bearing application (the second year); 1998 nendo seika hokokusho. Ceramic bearing yo nano seigyo zairyo no kenkyu kaihatsu (dai 2 nendo)

    NONE

    1999-03-01

    Development is made on ceramic bearing using high-performance and low-cost nano-structural materials, and its application is performed to high-quality bearings suitable for energy conservation in automobiles and industrial machines, and bearings for office automation devices, electronics, and aeronautic and maritime development. To achieve these goals, raw material synthesizing technologies, forming technologies, structural control technologies, processing technologies and mass production technologies shall be established. Fiscal 1998 had the following achievements: establishment of nano-structure controlled ceramic material powder synthesizing technology (nano-lamination type composite powder made by using the beads mill co-precipitation method, nano-lamination type composite powder made by using the New Mymill co-precipitation method, nano-lamination type composite powder made by using the controlled liquid phase method, composite nano-structured gel, and nano-powder synthesis); near net forming technology for spherical ceramics; high-speed processing technology for ultra smooth surface; evaluation of rolling fatigue properties of ceramic bearings; and analysis and evaluation of nano-structured materials. Since this alumina-based ceramic bearing can be produced at reduced cost with performance comparable to silicon nitride based bearing, investigations and discussions are being given on the application thereof. (NEDO)

  3. Fiscal 1999 international cooperation project report. R and D on convection control technology of glass melts by microgravity experiment; 1999 nendo bisho juryoku kankyo wo riyoshita glass yuekinai tairyu seigyo gijutsu no kenkyu kaihatsu seika hokokusho

    NONE

    2000-03-01

    This R and D aims at development of convection simulation technology of glass melts based on measurement of accurate glass melt properties, and development of convection control technology of glass melts through the model experiment and small tank furnace experiment. Experiment was made on measurement of surface tension while levitating glass melts under the microgravity condition obtained by the drop tower of Japan Microgravity Center in Hokkaido. The shape of glass melt changes into a real sphere under the microgravity condition, and surface tension can be obtained by measuring its frequency, however, such frequency of glass could not be measured in this experiment. Levitation, fusion and oscillation experiment of glass was carried out by using an aero-acoustic levitator of CRT at Chicago. The experiment result is now in analysis. This study also aims the analysis in consideration of a surface tension flow effect. The calculation result showed generation of surface tension flow due to temperature gradient on a liquid surface. Various information were obtained through the model experiment using silicon oil, and glass convention observation by using a small tank furnace. (NEDO)

  4. Fiscal 1999 achievement report. Research and technology of important regional technologies (Development of combustion control system technology for rationalizing energy use); 1999 nendo energy shiyo gorika nensho nado seigyo system gijutsu kaihatsu seika hokokusho

    NONE

    2000-03-01

    For upgrading and optimizing combustion control systems, research and development is conducted for materializing SiC devices capable of high-temperature operation. In the development of basic technologies common to various types of SiC semiconductor devices, XeCl excimer laser annealing is applied to SiC implanted with Al ions, and low-damage ion implantation is studied. In the development of techniques for forming SiC single crystals into substrates, warpage of 20{mu} or less, surface coarseness of 5{mu}m or less, etc., are achieved in 1-inch and 2-inch wafers. In the development of SiC sensor technology, techniques of heteroepitaxial growth of 3C-SiC on Si substrates and of 6H-SiC on 6H-SiC wafers are established and an optical sensor is built experimentally. A high-temperature UV sensor, switching device for control, rectification device for control, etc., are built of nitrogen ion implanted 6H-SiC. In the effort to develop combustion control system technology, the principle of system operation of the combustion control method proposed under this project is verified. (NEDO)

  5. Report on evaluation of research and development of light-aided instrumentation/control systems. Abstract; Hikari oyo keisoku seigyo system no kenkyu kaihatsu ni kansuru hyoka hokokusho. Gaiyohen

    NONE

    1986-08-01

    This research and development project is aimed at commercialization of the light-aided instrumentation technology systems which safely, stably measure, transmit and control process information including image information, e.g., temperature, flow rates and components at large plants in industrial complexes, in the severe atmospheres in the presence of, e.g., electromagnetic induction and combustible gases. These optical systems need development of light transmitting/receiving devices, various optical devices that constitute the network nodes, and various types of sensors of improved functions and reliability, in addition to development of the techniques required for transmitting large quantities of information on a large scale. This project has attempted to systematically make break-through in the individual elementary techniques, in particular those in the widely diversified technological areas for the advanced devices, and thereby to expand the instrumentation/control technology frontiers. The results of studies on gallium/arsenic crystals, which are prerequisite for photoelectronic integrated circuits as the bases for the light application technology, and processes for producing thereof are highly rated worldwide. It is planned to effectively utilize the total system, constructed at then Nippon Mining's Mizushima Refinery, and thereby to establish the effective instrumentation techniques for commercial plants and to promote commercialization of these results. (NEDO)

  6. Achievement report for fiscal 1998. Development of control system technologies such as combustion with energy consumption rationalized; 1998 nendo seika hokokusho. Energy shiyo gorkika nensho nado seigyo system gijutsu kaihatsu

    NONE

    1999-03-01

    To improve and optimize fuel control systems, basic technologies were studied for building SiC devices capable of high-temperature operation. The technologies involved the construction of single-crystal SiC substrates, development of element technologies such as conduction control, experimental production of SiC devices, and systems incorporating SiC devices for controlling, for example, combustion. The subjects of research and development for fiscal 1998 included the technologies related to common SiC semiconductor substrates (SiC substrate crystallinity evaluation by X-ray topography, thermal oxidation acceleration by ion irradiation, and annealing of ion-implanted SiC by excimer laser ), technologies of forming an SiC single crystal into a substrate, technologies related to SiC sensors, technologies related to SiC devices capable of operation at high temperature and high speed, technologies related to SiC devices for controlling, and technologies for controlling, for example, combustion. The subjects of basic researches at universities and research institutes included new crystal growing methods, ion beam-aided SiC synthesis, effect of irradiation of SiC with neutrons, and nuclear conversion implantation. (NEDO)

  7. FY 1984 annual report on the research and development of automatic sewing systems. System management/control techniques; 1984 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. System kanri seigyo gijutsu

    NONE

    1985-03-01

    The automatic sewing system technique research association has been commissioned by the Agency of Industrial Science and Technology for (research and development of automatic sewing systems). This program covers R and D of the elementary techniques for total systems and sewing preparation/processing, sewing/assembling, cloth handling, and system management/control. This report describes the results of the R and D efforts for the system management/control techniques. The FY 1984 efforts are directed to the basic designs for optimizing process configurations, load balances, and control of sewing/assembling devices, transfer devices and the like using a computer for controlling purposes, based on the production schedules in which demand forecasts by apparel makers are reflected, in order to reduce lead time from charging cloth into an automatic sewing plant to delivery of the products by at least 50% from the current level by improving processing efficiency and speed. The plan for development of the examination/failure diagnosis method, as the next R and D theme, is drawn mainly for determining positions of product quality standard setting-up, examination of individual steps and failure diagnosis functions of sewing machines, classification of the failure levels, and prediction of failure. Prospects of establishing an automatic system for visual recognition are obtained. (NEDO)

  8. Development II of ion current combustion control system. Application to the lean burn system of the micro vehicle engine; Ion denryu wo mochiita nensho seigyo system no kaihatsu. 2. Keijidosha engine wo mochiita lean burn eno oyo

    Iida, T; Asano, M; Kajitani, M; Kuma, t; Morinaga, Y [Daihatsu Motor Co. Ltd., Osaka (Japan)

    1997-10-01

    The lean bum engine has not been introduced into the micro vehicle so far because of the low cost requirement and small displacement, in spite of it is one of the effective solutions which increase the fuel economy. By the way, we had already reported in the former paper that we developed the ion current combustion control system the architecture of which is cheaper than the other system. In this paper, we described the way how the above system is applied to the lean burn system of the micro vehicle engine and also we reported the gain of fuel economy and the exhaust emission level. 5 refs., 11 figs., 2 tabs.

  9. FY 1995 annual report on development of techniques for creating high-quality crystalline materials for low-loss power controlling components; 1995 nendo teisonshitsu denryoku seigyo soshiyo kohinshitsu kessho zairyo sosei gijutsu kaihatsu seika hokokusho

    NONE

    1996-09-01

    The R and D project is implemented for manufacturing high-quality semiconductor crystalline materials of large size and uniform characteristics, in order to improve semiconductors as components for controlling power systems, and reduce power loss. The semiconductor melts, in particular silicon melt, is highly reactive, readily reacting with the atmosphere and crucible holding the melt, and it is difficult to collect their thermal properties. Therefore, an electro-magnetic levitation furnace working under a microgravity is used, to dispense with a crucible for measurement of their properties in the absence of thermal convection. The preliminary tests using the furnace produce surface tensions of the melts, because Ge is less reactive than silicon, stable in the form of a GeSbTe compound, and not wettable with Al{sub 2}O{sub 3}, MgO, SiO{sub 2} or Si{sub 3}N{sub 4}. The measurement of electric resistance of InSb indicates that InSb has characteristics of a semiconductor when it is solid and a metal when it is liquid, as is the case with Si. The program codes are developed by each researcher, and combined with each other to establish the comprehensive thermal flow analysis program, which includes all of the aspects of the internal CZ furnace structure for growing the crystals. (NEDO)

  10. FY 1999 Report on research results. Research and development of high-temperature air combustion technology (Attachments); 1999 nendo koon kuki nensho seigyo gijutsu kenkyu kaihatsu seika hokokusho. Shiryoshu

    NONE

    2000-03-01

    This project surveys the actual conditions of dioxins emissions discharged from the waste incinerators in commercial service, in order to establish the database for evaluating the effects when the (high-temperature air combustion technology) is applied to waste incinerators. The survey covers 1018 totally continuous incinerators and 724 quasi-continuous incinerators in service in Japan, and the data are analyzed by incinerator types and items for correlating each element with one another, based on The Waste Incinerator Register issued by The Wastes Research Foundation and Dioxins Concentrations in Flue Gases from General Waste Incinerators issued by Health and Welfare Ministry. For 1105 mechanized batch type combustion furnaces and 159 stationary batch type combustion furnaces, only discharged dioxins concentrations are analyzed by incineration capacity. The attachments include (1) report on the survey results of the actual conditions of dioxins emissions, (2) report on the survey results of the actual conditions of dioxins concentrations in flue gases discharged from general waste incinerators, (3) report on the survey results of the actual conditions of NO emissions discharged from sewer sludge incinerators, and (4) and (5) report on the survey results of the actual conditions of NO emissions discharged from fluidized bed type general waste incinerators. (NEDO)

  11. Report on achievements of research and development of an automatic sewing system in fiscal 1985. System management and control technology; 1985 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. System kanri seigyo gijutsu

    NONE

    1986-03-01

    This paper describes the system management and control technology, extracted from the achievement report for fiscal 1985 on developing an automatic sewing system. The comprehensive system management has verified algorithms for the optimal process formation and load balancing based on the industry's latest market and production plan trends, and obtained good results. Furthermore, structuring, discussions and proposals were made on an interface system of an optimal process controlling computer with an automatic device controlling micro computer. The inspection and failure diagnosis have set a quality standard for intermediate products in the sewing lines, and verified that its automation is possible by using an image processing technology that identifies dimensional inspection and colors. In the research of printing control information, calculations were performed on the information amount, printing locations, expression method and printing speed, narrowing down to parts ID and location information as the required printing information. Thus,items of basic information for media, media printing and printing device design were put into order. The information recognizing technology has picked up image recognition applying locations in a sewing factory and problems therein, and performed evaluation experiments on specific pattern matching and processing position recognition to have obtained the prospect of application of the automation. (NEDO)

  12. Research and development of photovoltaic power system. Characterization and control of surface/interface recombination velocity of crystalline silicon thin films; Taiyoko hatsuden system no kenkyu kaihatsu. Silicon kessho usumaku ni okeru hyomen kaimen saiketsugo sokudo no hyoka to seigyo

    Hasegawa, H [Hokkaido University, Sapporo (Japan). Faculty of Engineering

    1994-12-01

    This paper reports the result obtained during fiscal 1994 on characterization and control of surface/interface recombination velocity of crystalline silicon thin films. To optimize design and manufacture of solar cells, it is necessary to identify correctly resistance factor (or doping) of bulk of materials, bulk minority carrier life, and recombination velocity on surface, passivation interface and electrode interface. A group in the Hokkaido University has been working since a few years ago on development of non-contact and non-destructive photo-luminescence surface level spectroscopy (PLS{sup 3}). A new non-contact C-V method was also introduced. Using these methods, basic discussions were given on possibility of separate measurements on surface/interface and bulk characteristics of solar cell materials. The PLS{sup 3} method and the non-contact C-V method were used for experimental discussions on evaluation of silicon mono-crystalline and poly-crystalline materials. Discussions were given on separate evaluations by using the DLTS method. 10 figs., 2 tabs.

  13. Achievement report for fiscal 1988 on fundamental technologies for next generation industries. Research and development on high-performance crystallinity controlled alloy; 1988 nendo koseino kessho seigyo gokin no kenkyu kaihatsu seika hokokusho

    NONE

    1989-03-01

    With an objective to develop an alloy having excellent heat resistance, light weight, and high toughness, research has been performed on a high-performance crystallinity controlled alloy. This paper summarizes the achievements in fiscal 1988. In the research of a mono-crystal alloy manufacturing technology, casting tests were carried out on mono-crystal blades having cores of complex shape to evaluate the control technologies and the blade characteristics. In addition, mono-crystals were cast from the melting stock of the developed alloy to investigate their creep rupture characteristics. In the research of an ultra-plastic alloy manufacturing technology, alloy powder with average diameter of 80 {mu}m has become producible. The HIP-heat extruded material has achieved elongation of about 200% even in coarse powder. In the ultra-plastic processing method utilizing the ultra-alloy powder, the dual property disk was developed successfully, and the manufacturing technology was established. In the technology to cast a particle dispersed and reinforced alloy, a technology was developed to form an integrated half-cut blade with thin wall and long length. In the heat treatment technology, the band annealing conditions were elucidated on components having complex shapes, and trial production was executed on parts whose crystals are treated unidirectionally. (NEDO)

  14. Report on achievements of research and development of an automatic sewing system in fiscal 1986. System management and control technology; 1986 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. System kanri seigyo gijutsu

    NONE

    1987-03-01

    The Automatic Sewing System Technology Research Association was commissioned from the Agency of Industrial Science and Technology on the 'development of an automatic sewing system'. The association is performing the research and development by dividing the subject into such component technologies as a total system and sewing preparation and processing technology, a sewing and assembling technology, a cloth handling technology, and a system management and control technology. This paper reports the achievement of the research and development on the system management and control technology. Plans have been established on the following items: dimensional inspection of sewn parts by using an image processing technology, real-time processing of the matching work interlocked with a striped pattern cloth handling device, and a processing positioning algorithm to instruct sewing lines and needle dropping points based on contour lines of pockets and collars. The effects thereof were verified. Printing seven-segmented numerals on cloth by using fluorescent whitener and an automatic reading test of the printed information verified that the technology can be applied to tracking the parts in a processing line as an ID information. Researches were also made on unification of micro-computers for controlling such automatic machines as a multi-functional sewing machine, a three-dimensional sewing machine, and a cloth handling and positioning device, as well as on interface with the computer for function sharing management and control. (NEDO)

  15. FY 1983 annual report on the research and development of automatic sewing systems. System management/control techniques; 1983 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. System kanri seigyo gijutsu

    NONE

    1984-03-01

    The automatic sewing system technique research association has been commissioned by the Agency of Industrial Science and Technology for (research and development of automatic sewing systems). This program covers R and D of the elementary techniques for total systems and sewing preparation/processing, sewing/assembling, cloth handling, and system management/control. This report describes the results of the R and D efforts for the system management/control techniques. The program for the system management/control techniques involves, first of all, the basic designs for the overall system management, centered by the optimum process configuration and control for reducing lead time of an automatic sewing plant by at least 50% from the current level, based on the production schedules of an apparel maker. The basic designs are then extended to cover examination of defective products at each step, examination and failure diagnosis for prediction, detection and exchange of failed machine parts, systemisation of necessary information to be provided for automatic operation of a sewing plant and providing control-related information, including selection of information media, and information recognition by processing images of cloth and surface conditions/shapes of machine parts. (NEDO)

  16. 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

    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)

  17. FY1987 report on the result of the R and D of an automatic sewing system. System management/control technology; 1987 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. System kanri seigyo gijutsu

    NONE

    1988-03-01

    The paper summarized the R and D of system management/control technology which is an element technology of an automatic sewing system by the Automatic Sewing System Technology Research Association. The effects were confirmed by experiments such as the inspection of dimensions of sewing parts using image processing technology, inspection of the surface state to examine if or not there are darts and pintucks, making and demonstration of the recognition treatment software for fitting patterns on the pocket with big cross stripes, strengthening of the function to determine processing position, etc. Improvement was added to 7 segment letters which becomes ID information so that 8mm letters could be read at a recognition rate of more than 95%. The information required for production plan was summarized after making it mutually connected. Further, a method was worked out for estimation of the standard time required for making the day schedule. Files for drawing-up the optimum process and for process control simulator were made by the expression peculiar to apparel. The framework of the interface was prepared to make the following clear: the integration of the process control use computer into the microcomputer for control of automatic machines such as devices and presses for sewing preparation, multi-functional sewing, assembly sewing, cloth handling/positioning, and the sharing of functions. (NEDO)

  18. Fiscal 2000 report on financially supported geological structure survey overseas. Basic survey for coal resource exploitation (Research on underground probing technology); 2000 nendo kaigai chishitsu kozo chosahi nado hojokin (sekitan shigen kaihatsu kiso chosa) konai tansa gijutsu chosa hokokokusho

    NONE

    2001-03-01

    For the work of searching for coal beds, comparison is made between the geological structure of the object area, which is predicted, before actual investigation, by a close scrutiny of the result of oceanic pilot boring conducted in the past, result of geophysical exploration, and the geological features of galleries already in presence in the vicinity, and the result obtained from galleries drilled actually for the investigation. The investigation was conducted at the Ikeshima coal mine, Nagasaki Prefecture. In this fiscal year, 5 investigation galleries were drilled, totalling 1640m in length, and, in the mine, geological surveys, survey and measurement, coal quality evaluation, water emergence investigation, boring for coal, etc., were carried out. Comparison was made, and, though in the 2nd Minami No. 06 air duct there was no important difference detected between the prediction and the actual result, some faults were found to exist which had not been predicted by seismic exploration on the ocean. In the 2nd Minami No. 5 air duct, the actual geology was not different from the predicted geology, this endorsing the usefulness of boring for coal. In the 2nd Minami No. 01 gallery, direction and inclination were not greatly different from what had been predicted, but some faults which had not been predicted were discovered. These faults had escaped the scrutiny of neighboring coal beds and pilot boring. (NEDO)

  19. 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)

    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)

  20. Report on the FY 1998 geological structure survey. North Hay Gulch area, State of Colorado, the U.S.; 1998 nendo kaigaitan kaihatsu kanosei chosa hojo jigyo chishitsu kozo chosa hokokusho. Beikoku Colorado shu North Hay Gulch chiiki

    NONE

    1999-02-01

    Test boring at 21 places and core sampling were conducted during September-November 1998 along the ridge to the west of Hay Gulch and in the direction crossing the northwest of the drainage canal and National King Coal Mine (NKC coal mine). It was found that A layer which NKC coal mine is now drilling is the upper part of A coal seam where the seam bifurcates. The boundary to the west of the thick A coal seam is not clear, and there is a possibility that more reserve from the thick coal seam and single seam exists toward Cherry Creek. In the existing coal drilling area, the lower A seam existing under the upper A seam becomes thin rapidly, and the seam thickness becomes less than 1 foot. The average thickness of thick coal seams is 9.9 feet, and the area is 780 acres along the ridge. The upper A coal seam except the above is 5.5 feet in average seam thickness and 910 acres in area. The reserve is 23 million tons. As to the quality of thick coal seam, the average heating value is 7,089 kcal/kg, sulfur content 0.68%, and ash content 7.50%. As coal drilling conditions, the same level as or higher than those of NKC coal mine is expected. (NEDO)

  1. 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

    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)

  2. 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

    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)

  3. Investigations in fiscal 1986 on promotion of geothermal development. Part 2. Report on precision structural test well drilling and investigation works in Otaki area; 1986 nendo chinetsu kaihatsu sokushin chosa hokokusho. 2. Otaki chiiki seimitsu kozo shisui oyobi chosa koji

    NONE

    1987-09-01

    With an objective of promotion of geothermal development in the Otaki area in Nagano Prefecture, precision structural test well drilling and investigation works have been carried out, and the result thereof reported. The investigated area is an inclined land with an area of 70 km{sup 2} at altitudes of 1,000 to 2,000 m in the southern foot of the Mitake volcano having Otaki River as the southern border. The investigation has performed during the period from March 2 to September 30, 1987 the drilling of the N61-OT-5 test well hole (depth of 502.0 m), temperature logging, temperature restoration test, water injection test, and core test. The result of the investigation may be summarized as follows: existence of the stratigraphic succession as predicted by ground surface investigation, and existence of the Mesozoic and Palaeozoic strata of the Mino belt were verified; the Mesozoic and Palaeozoic strata of the Mino belt being the base bed have only small cracks, and very little alteration can be identified; X-ray diffraction of powder from test drilled cores recognized very little minerals altered by hot water; and the temperature logging and temperature restoration test identified no temperature indication that clearly indicates existence of heat sources. As a conclusion, there is no alteration due to hot water down to 500 m below the surface in the vicinity of the investigation well, and the possibility of a geothermal reservoir to exist is extremely low. (NEDO)

  4. Research and development of photovoltaic power system. Study on structural defects in silicon-based amorphous materials; Taiyoko hatsuden system no kenkyu kaihatsu. Amorphous silicon kei zairyo no kozo kekkan ni kansuru kenkyu

    Shimizu, T [Kanazawa University, Ishikawa (Japan). Faculty of Engineering

    1994-12-01

    Described herein are the results of the FY1994 research program for structural defects of silicon-based amorphous materials for solar cells. The study on light generation defects of the a-Si:H system and rejuvenation process by annealing establishes the effects of light irradiation time on changed neutral dangling bond density as a result of light irradiation at varying temperature of 77K, room temperature and 393K. The study on annealing to rejuvenate light generation defects of various types of a-Si-H systems establishes the activation energy distribution with respect to annealing to remove light-induced defects, showing that hydrogen affects the distribution of light-induced defects. The study on decaying process of light-induced ESR for undoped and N-doped a-Si:H systems observes the decaying process of light-induced ESR, after light is cut off, extending for a period of several seconds to several hours at 77K for the a-Si-H systems containing N in a range from 0 to 12at%. The other results presented are space distribution of neutral defects of light-irradiated a-Si-H systems, and rejuvenation process of light-induced spin for the a-Si(1-x)N(x):H composition. 6 figs.

  5. FY 1974 Report on results of Sunshine Project. Research and development of methods for wide-area thermal structure exploitation; 1974 nendo koiki netsu kozo chosaho no kenkyu kaihatsu seika hokokusho

    NONE

    1975-05-28

    The project of (research and development of methods for wide-area thermal structure exploitation) is to pursue (1) development of heat flow rate analyzers, and researches on the methods for measurement/analysis of heat flow rates, (2) researches on geological thermometers with the cores collected from test bores as the samples, (3) observation/analysis of microearthquakes, and application of the results to the geothermal structure exploitation, and (4) development, on a trial basis, small, light air drilling machines. The method for clearly elucidating thermal structures has not been well established. Therefore, a test bore was drilled to measure temperature and collect the core samples in the wide-area geothermal district at Kita Yahata-daira as the model district, for measurement of heat flows, and analysis of the cores to estimate temperature at which they are formed. Microearthquakes, which frequently occur in geothermal areas, are also observed for extended periods. This project of (research and development of methods for wide-area thermal structure exploitation) is aimed at, based on the above efforts, to estimate/elucidate depth of thermal sources by the geological, geophysical and geochemical studies, relationships between geological structures and high-temperature zones, geothermal propagation structures, and geothermal reserves. This report summarizes the R and D results in the initial year of the 6-year plan. (NEDO)

  6. 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)

    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)

  7. 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)

    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)

  8. Acoustic excitation of diffusion flames with coherent structure in a plane shear layer. ; Application of active combustion control to two-dimensional phase-locked arranging measurements. Soshiki kozo wo tomonau heimen sendai kakusan kaen no onkyo reiki. ; Nijigen iso heikin bunpu sokutei eno active nensho seigyo no oyo

    Ishino, Y.; Kojima, T.; Oiwa, N.; Yamaguchi, S. (Nagoya Institute of Technology, Nagoya (Japan))

    1993-11-25

    The acoustic excitation of a plane diffusion flame enhances the periodicity of organized eddy controlled combustion. In this study, to clarify an effectiveness of application of active combustion control, phase characteristics of the excited eddy flames with high periodicity have been examined. A computer-aided phase-locked averaging method was employed to obtain graphical two-dimensional contour maps of the instantaneous profiles of temperature and CH emission. Both maps consisting of eight consecutive phases indicated clearly not only the periodic behavior of the organized eddy flame, but also the gas dynamic properties peculiar to those flames with coherent structure. In addition, the profiles of local contribution of the sound field to the combustion process were examined by calculating the two-dimensional distribution of the local Rayleigh index. Calculation results of the two-dimensional distribution of the local Rayleigh index indicated that the organized eddy flames have high sensitivity to sound, and play an important role in an interaction of sound and flame. 6 refs., 9 figs.

  9. Achievement report for fiscal 1996 on the research and development of technologies for important region. Development of control system technology for combustion with energy use rationalized, etc.; 1996 nendo juyo chiiki gijutsu kenkyu kaihatsu seika hokokusho. Energy shiyo gorika nensho nado seigyo system gijutsu kaihatsu

    NONE

    1997-03-01

    The goal is to develop basic technologies to build an SiC device capable of service amid high-temperature surroundings for the advancement and optimization of combustion control systems. In an SiC semiconductor, the Si-C bond is broken when irradiated with ions, and this makes the occurrence of thermal oxidation easy to occur. In the study to form SiC into single-crystal substrates, a substrate with warpage of 10 micrometers or less and surface coarseness of 10 nanometers or less is realized. In the development of sensor technologies, the high-speed CVD (chemical vapor deposition) method is applied for the growth of crystals further on a 3C-SiC layer epitaxially grown by MBE (molecular beam epitaxy) surface control, which improves on layer characteristics. Element technologies are developed for the construction of a 3-terminal element (FET: field effect transistor), which is for the construction of a high-temperature, high-speed SiC device. An effort is made at achieving 3C-SiC hetero-epitaxial growth, etc., on a 3-inch Si substrate using an SiC crystal film formation experimenting apparatus, which aims at constructing a control device. Concerning the combustion control system, the relations between the air/fuel ratio and the emission spectra of radicals OH, CH, and C2 in a flame are made clear. Also referred to are the basic studies being conducted at research institutes such as universities and a survey of technological trends abroad.

  10. Achievement report for fiscal 1999 on development of 'technology to promote reduction of discharge of dioxins and development of technology to suppress discharge of dioxins in aluminum product manufacturing processes'; 1999 nendo dioxine rui haishutsu sakugen sokushin gijutsu kaihatsu seika hokokusho. Aluminium seihin seizo kotei ni okeru dioxin rui no haishutsu yokusei seigyo no kaihatsu

    NONE

    2001-03-01

    Research and development has been performed with an objective to reduce discharge of dioxins in aluminum product manufacturing processes. With regard to the quantity of chlorine used in aluminum molten metal refining process, the refining tests using 100% chlorine gas and the mixed gas (nitrogen gas mixed at 80%) revealed that either gas has approximately the same degassing performance, and the use of the mixed gas can reduce the amount of chlorine used. Dioxin concentrations in the gas discharged from the refining process were measured under the refining condition using less amount of chlorine. As a result, it was verified that, in the case of using 20% chlorine gas plus 80% nitrogen gas, the concentrations of dioxins decrease to about l/6, or 0.6 ng-TEQ/N{sup 3}. The studies on suppressing the discharge of dioxins from the facility to wash chlorine treatment exhaust gas discovered that dioxin concentration in the scrubber circulating solution can be suppressed to 1/10 or less by means of gravity precipitation and separation of the suspended liquid. It was also made clear that pH should preferably be controlled to 10.5 to separate suspended substances from the precipitated solution. (NEDO)

  11. Report of the results of the fiscal 1997 regional consortium R and D project. Regional consortium energy field / Development of the plasma use surface treatment process by in-situ control (first fiscal year); 1997 nendo chiiki consortium kenkyu kaihatsu jigyo. Chiiki consortium energy bun`ya / in-situ seigyo ni yoru plasma riyo hyohi shori process no kaihatsu (daiichi nendo) seika hokokusho

    NONE

    1998-03-01

    The paper described the fiscal 1997 result of the development. To know of in-plasma phenomena such as carburization and nitriding, a basic plasma experimental device was fabricated for quantitative measurement of reaction activity species. For the study of reaction control between plasma and substrate, a rotary analyzer type ellipsometer was fabricated as a method to detect composition and thickness of the deposit on the substrate surface. For He gas cooling after carburization and hardening, basic specifications for He gas refining/circulating system were confirmed. For perfect non-hazardous processing of exhaust gas from plasma carburization furnace, conducted was the thermodynamic computation of the process. Priority in order of the functions to be possessed as specifications for basic design of mini plant is plasma carburization, He gas cooling, and in-situ measurement. To make the most of the plasma use surface treatment as substitutes for expensive alloy elements, sliding parts/die-cast mold raw materials were carburized to measure the hardness. The Cr carbide coating technology by plasma CVD is also under study as an application example except carburization. 47 refs., 59 figs., 31 tabs.

  12. FY 1999 Report on research and development of energy utilization rationalization superhigh-technological liquid crystal technologies. Superhigh-technological electronic technology development promotion project for new functional electronic material design, control and analysis technologies; 1999 nendo energy shiyo gorika chosentan ekisho gijutsu kaihatsu seika hokokusho. Chosentan denshi gijutsu kaihatsu sokushin jigyo shinkino denshi zairyo sekkei seigyo bunseki nado gijutsu

    NONE

    2000-04-01

    Described herein are the FY 1999 results of the liquid crystal technology development project. For the researches on multi-layer reflection, composite panels of flattened resins of different refractive index are developed to improve 2-layer monochromic contrast ratio. The guest/host liquid crystal compositions of high orientation order are investigated as the those useful for high contrast. Compounds are pursued for superanisotropic light absorption, and modification with a substituent is found to be effective. Molecular orientation controlling is also studied. For researches on memory-sustaining type liquid crystals, the studied items include formation of thin ferroelectric films on glass substrates, improvement of voltage-sustaining characteristics by composites (including compounds), and doping of trace quantities of ionic impurities. For development of image element colors, the studied items include multi-lattice-structured, oriented HPDLC devices, composites of high birefringence (high order light scattering), and light interference, high order light scattering type light control devices. The multi-dimensionally anisotropic structure of configuration divided into 3 parts of R, G and B is developed to create directive reflection which improves brightness of the reflection type color liquid crystal. A group of compounds are pursued to develop liquid crystal compositions of high refractive index anisotropy, and promising ones are found. The results of the comprehensive investigations are also described. (NEDO)

  13. Fiscal 2000 research achievement report on the development of super-advanced liquid crystal technology for energy use rationalization. Development promotion project for super-advanced electronic technology - Design, control, analysis, etc., of electronic materials having novel functions; 2000 nendo energy shiyo gorika chosentan ekisho gijutsu kaihatsu seika hokokusho. Chosentan denshi gijutsu kaihatsu sokushin jigyo (shinkino denshi zairyo sekkei seigyo bunseki nado gijutsu)

    NONE

    2001-04-01

    Efforts are focused on the verification of target devices under the respective subjects, and activities are conducted with the development system reinforced. Three newly proposed reflection type liquid crystal devices achieve the target specifications of a reflection factor of 60% or higher and a contrast ratio of 15:1 or higher. Studies are conducted involving the five fields of (1) multilayer reflection devices, (2) memory retention liquid crystal devices, (3) single pixel color devices, (4) directional reflection devices, and (5) joint research. Research and development in field (1) covers ultra-anisotropic optical materials, ultrahigh reliability host liquid crystal materials for guest-host liquid crystals - mixed system, low voltage driven/high load holding liquid crystal compound systems, and new liquid crystal molecule orientation control technology; in field (2), low temperature fabrication of ferroelectric thin film, and ultrahigh purity high reliability liquid crystal compounds; in field (3), materials capable of controlling optical interference and higher order light scattering, photoregulation devices, highly birefringent liquid crystal materials - mixed system, and ultrahigh efficiency light scattering liquid crystal compounds; and, in field (4), multi-dimensional anisotropic structure fabrication technology and ultra-anisotropic optical materials. (NEDO)

  14. Fiscal 2000 achievement report on the important regional technology research and development. Research and development of super-functional environment resistant materials by controlling trace metal ion implantation; 2000 nendo juyo chiiki gijutsu kenkyu kaihatsu seika hokokusho. Gokubiryo kinzoku ion chunyu seigyo ni yoru chokino taikankyo zairyo no kenkyu kaihatsu

    NONE

    2001-03-01

    Efforts are made to develop highly reliable materials greatly improved in high temperature oxidation resistance, high temperature wear resistance, and high temperature corrosion resistance, by implanting traces of a high melting point metal into the substrate surface or into the compound coating the substrate surface or deeper into the substrate. Activities are conducted in the five fields of (1) the research and development of element technologies for ion processes, (2) research and development of high temperature oxidation resistant materials, (3) research and development of high temperature wear resistant materials, (4) research and development of high temperature corrosion resistant materials, and (5) the technology of ion implantation into complicated shapes. In field (2), in concrete terms, development is in progress of automobile supercharger rotor materials and gas turbine blades. In field (5), studies are conducted about the cathodic arc aided surface reforming for 3-dimensional shapes and ion implantation characteristics and about shunting arc aided plasma formation for solid/metal materials. (NEDO)

  15. FY 1994 report on the results of the development of a large wind power system. Development of control technology of the array type wind power system; 1994 nendo ogata furyoku hatsuden system kaihatsu seika hokokusho. Shugogata furyoku hatsuden system no seigyo gijutsu no kaihatsu

    NONE

    1995-09-01

    This technology development aims at developing the design technology of the array type wind power system and the control technology to efficiently operate the system. As a result, the wind turbine produced by Micon was selected. The rated power is 100kW, and the number of the wind turbine is three. The three-phase short-circuit capacity at the generating end of the wind power generation facilities is 26,25 MVA, which can fully be broken. A simulation of voltage variation/frequency variation was made to grasp various phenomena of the output of the wind power system influencing the power source system and power distribution system. As a result, it was confirmed that it is possible to operate the system safely without lowering the quality of power. As to the overall monitor/control system which controls wind turbines, five wind turbines as many as possible are grid-interconnected and the number of wind turbine is to be controlled by a ratio of the total demand power to the gross generating output of wind power in the Miyako system, for the purpose of increasing the rate of equipment utilization of the wind power system also at the time of the lowest load of the Miyako system. In the operation of two-system interconnection, the gross power generating amount was 1,321,250 kWh, which increased 9.7% over the results in FY 1993. (NEDO)

  16. Research and development of the industrial basic technologies of the next generation, 'composite materials (highly functional, crystal-controlled alloys)'. Evaluation of the first phase research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'koseino kessho seigyo gokin'. Zenki kenkyu kaihatsu hyoka

    NONE

    1985-03-30

    The results of the first phase research and development project for developing highly functional, crystal-controlled alloys as the basic technologies of the next generation are evaluated. The R and D themes are selected to develop alloys superhighly resistant to heat, heat-resistant/high-rigidity and light/high-rigidity by controlling their crystals. Development of the basic techniques for these materials is of high significance, and highly rated. The efforts in the first-phase R and D project are aimed at designs of a total of 12 types of single-crystal alloys by the computer-aided alloy designing techniques, production of these alloys on a trial basis, and evaluation of their characteristics, for the alloys superhighly resistant to heat. Two of them are confirmed to be superior to the others, and selected as the alloys to be developed. This project has also established the single-crystal casting techniques, which allow crystal orientation almost completely. Various types of heat-resistant/high-rigidity and light/high-rigidity alloys are designed, produced on a trial basis, and evaluated for their characteristics. As a result, one alloy type is selected for each category. The other techniques developed by this project include those for adjusting powders for light/high-rigidity alloys whose average grain sizes are controlled and impurity contents are reduced. Bright prospects have been obtained for the techniques for superplastically forging the disk shapes. These efforts have almost achieved the development objectives of the first-phase R and D project. (NEDO)

  17. Fiscal 2000 achievement report on the venture business assisting type regional consortium - Core industry creation type. Research and development of polisher robot system using intelligent force control; 2000 nendo chiiki consortium kenkyu kaihatsu jigyo seika hokokusho. Intelligent ryoku seigyo wo mochiita kenma robot system no kenkyu kaihatsu

    NONE

    2001-03-01

    The effort aims to automatize the manufacture of wooden furniture by robotizing the polishing work in the field of wooden furniture manufacturing, making use of the seeds provided by intelligent force control technologies. The intelligent force control technologies ('Delicate control of force for the open architecture type industrial robot' and 'Method for target orbit generation not requiring joystick teaching') of Saga University and the interior laboratory of Fukuoka Prefectural Industrial Research Institute are evolved and applied, and are integrated with the 3-dimensional object modelling technology developed by the mechanical and electronic laboratory, Fukuoka Prefectural Industrial Research Institute, and the CAD (computer aided design) data conversion technology developed by ASA Systems Inc. The result was a polisher robot system experimentally fabricated to satisfy the need of an automated polishing process in the wooden furniture manufacturing industry. The robot was tested, and achieved a surface coarseness level of 5{mu}m or less. As for the manufacturing rate, it attained a rate of approximately 100mm/s which was two times higher than the rate to be expected from a skilled worker. (NEDO)

  18. FY 1998 research result report. Ultra-high liquid crystal technology development for energy use rationalization (Technology of design/control/analysis of new functional electronic materials of the ultra-high electronic technology development promotion project); 1998 nendo kenkyu seika hokokusho. Energy shiyo gorika chosentan ekisho gijutsu kaihatsu (chosentan denshi gijutsu kaihatsu sokushin jigyo shinkino denshi zairyo sekkei seigyo bunseki nado gijutsu)

    NONE

    1999-05-01

    Element technology is studied to realize a reflective-type, full-color, and high-resolution liquid crystal display for super-low power consumption data display. As to the functional compound microstructure formation technology, a 4-inch panel was trially fabricated using two-layer guest-host liquid crystal technology to achieve the desired display performance by control of molecular orientation. Further, holographic PDLC elements were favorably test-fabricated. A ferroelectric PZT thin layer was formed by forming layer at low temperature at which a glass substrate can be used. Optical interference/optical dispersion type optical control materials were studied by liquid crystal/polymer composition. Also studied were super-pure/super-reliable liquid crystal compound/liquid crystal composite systems and super-anisotropic liquid crystal compound by modeling ionic impurities and liquid crystal molecular interaction. In relation to the control technology of optical reflection characteristics, effects of liquid crystal molecular structures (derivative effect and copolymer composition) on orientation were elucidated. As to the technology to form multi-dimensional anisotropic structures, efforts were made for the heightening of formation technology of simple RGB (red, green, blue) directional reflection layers using acrylate materials. The paper also outlined the comprehensive survey. (NEDO)

  19. Fiscal 1997 report on the results of the technical development of super metal under consignment from NEDO. Technology to create ferrous mesoscopic structure control materials; Super metal no gijutsu kaihatsu (tetsukei mesoscopic soshiki seigyo zairyo sosei gijutsu) seika hokokusho (1997 nendo). Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko (NEDO) itaku kenkyu

    NONE

    1998-03-01

    The fiscal 1997 results were reported of the project on the technical development of super metal which draws out limit performance of ferrous metal and improves the recyclability. In the study of large-strain deformation, a study was carried out with the use of large-strain deformation of more than 50% per 1 pass (strain rate: 0.7 or more) and multi-phase structure. By the crystal microstructuring technology, a level was reached where approximately 1{mu}m crystal size can be obtained. In the study of high magnetic field utilization, the course of study of the structure control and microstructuring was chosen in the preliminary experiment using the existing 8 tesla magnet, and the design and fabrication of a new 12 tesla large-diameter magnet were conducted. In the study of material structure prediction, modeling of microstructuring by recrystallization and establishment of a material predicting method of micro/multi-phase/mixed-grain structures were made the subjects. In the analysis of the mesoscopic structure, the mesoscopic analysis was made of the 0.3C-9Ni steel microstructured by the large-strain deformation thermal processing, and it was shown that the reflective electronic image measured by varying accelerating voltage gives new structural information. 111 refs., 135 figs., 35 tabs.

  20. Hydrogen utilization international clean energy system (WE-NET). Subtask 8. Development of hydrogen combustion turbines (development of combustion control technology); Suiso riyo kokusai clean energy system (WE-NET). Subtask 8. Suiso nensho turbine no kaihatsu nensho seigyo gijutsu no kaihatsu

    NONE

    1997-03-01

    The paper described the fiscal 1996 developmental results of hydrogen burning turbine combustion technology in the hydrogen utilization international clean energy system (WE-NET) project. A test was conducted on an annular type combustor where oxygen is mixed with steam (inert gas) at burner and fired with hydrogen. Appropriate flame shape and cooling/dilution vapor distribution were attempted, and various data on combustion were measured for improvement. Mixture and flame holding were improved by developing a can type combustor (1) where oxygen is diluted with steam after firing oxygen and hydrogen around burner and by strengthening circulation in the combustor. Improvement such as appropriate steam distribution, etc. is needed. A can type combustor (2) was tested in which the premixed oxygen and hydrogen is supplied from scoop and fired with hydrogen. By supplying part of oxygen from the primary scoop, the residual hydrogen and oxygen concentration around the stoichiometric ratio can be reduced. Concentration of the residual oxygen can be measured by the absorption light method, but it is difficult to adopt the non-contact measuring method to hydrogen. An outlook for the gas temperature measuring method was obtained. 12 refs., 121 figs., 27 tabs.

  1. Research and development of basic technologies for next generation industries, 'high-performance crystalline controlled alloys'. Evaluation on final research and development (first report); Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Koseino kessho seigyo gokin (saishu kenkyu kaihatsu hyoka 1)

    NONE

    1989-05-01

    The present research work has been performing research and development of the following alloys: (1) 'single crystalline alloy' , the entire alloy being composed of one crystal eliminating crystalline boundaries as an ultra heat resistant alloy with emphasis placed on improvement in particularly the creep properties, and 'particle dispersion strengthened alloy', in which ultrafine particles of oxides are dispersed uniformly; and (2) 'ultra heat resistant and tough alloy' targeted at high-temperature toughness by using Ni-group allowing ultra plasticity forging processing by micronizing crystal particles, as an ultra plastic and highly tough alloy having better processibility than conventional alloys, and 'light-weight highly tough alloy' aimed at achieving light weight and high toughness by using Ti-group. Achievements derived from the present research and development may be summarized as follows: in alloy development, alloys having performance of the world's highest level or equivalent have been developed; a manufacturing technology to make products with complex shapes has been established by using the alloy material manufacturing technology and the alloy materials developed therefrom, where prototype components of such shapes as turbine blades and turbine disks for jet engines were fabricated successfully; and the big fruit obtained was that a large number of technological experiences were acquired from this research and development. (NEDO)

  2. Report on research achievement in relation with developing fundamental combustion control technologies in fiscal 1998. Research and development of high-performance industrial furnaces; 1998 nendo nensho seigyo kiban gijutsu no kaihatsu ni kansuru kenkyu seika hokokusho. Koseino kogyoro nado ni kansuru kenkyu kaihatsu

    NONE

    1999-03-01

    Development is intended to be made on fundamental combustion control technologies applicable to high-performance industrial furnaces that can reduce energy consumption and respond to environment preservation requirements. With an intention to achieve reduction in combustion exhaust gases such as carbon dioxide and nitrogen oxides, fundamental studies will be made on factors to decide flame shapes as represented by high-temperature combustion and flame shape control by utilizing microgravity environment, and researches will be made on combustion systems. Devices required for the experiments were fabricated to evaluate critical combustion characteristics of flames in furnaces including industrial furnaces, analyze and evaluate flame control parameters, and study low-pollution combustion technologies. Experimental methods acquired by 1997 were used for the experiments under the microgravity environment. Evaluation experiments were performed on flame shape control technologies and flame radiation characteristics, and basic experiments on the low-pollution combustion technologies. With these experiments, elucidation of the combustion mechanisms was launched by analyzing and evaluating the acquired data. A flame experimenting device for high-temperature preheated air completed by fiscal 1997 was used to acquire such combustion characteristics data as NOx discharge characteristics when the high-temperature preheated air is used. Based on the result thereof, verification was carried out on simulation models. (NEDO)

  3. Research and development of the industrial basic technologies of the next generation, 'composite materials (highly functional, crystal-controlled alloys)'. Evaluation of the first phase research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'koseino kessho seigyo gokin'. Zenki kenkyu kaihatsu hyoka

    NONE

    1985-03-30

    The results of the first phase research and development project for developing highly functional, crystal-controlled alloys as the basic technologies of the next generation are evaluated. The R and D themes are selected to develop alloys superhighly resistant to heat, heat-resistant/high-rigidity and light/high-rigidity by controlling their crystals. Development of the basic techniques for these materials is of high significance, and highly rated. The efforts in the first-phase R and D project are aimed at designs of a total of 12 types of single-crystal alloys by the computer-aided alloy designing techniques, production of these alloys on a trial basis, and evaluation of their characteristics, for the alloys superhighly resistant to heat. Two of them are confirmed to be superior to the others, and selected as the alloys to be developed. This project has also established the single-crystal casting techniques, which allow crystal orientation almost completely. Various types of heat-resistant/high-rigidity and light/high-rigidity alloys are designed, produced on a trial basis, and evaluated for their characteristics. As a result, one alloy type is selected for each category. The other techniques developed by this project include those for adjusting powders for light/high-rigidity alloys whose average grain sizes are controlled and impurity contents are reduced. Bright prospects have been obtained for the techniques for superplastically forging the disk shapes. These efforts have almost achieved the development objectives of the first-phase R and D project. (NEDO)

  4. Report of the results of the fiscal 1997 regional consortium R and D project. Regional consortium energy field / development of nano-structured materials for ceramic bearing application (first fiscal year); 1997 nendo chiiki consortium kenkyu kaihatsu jigyo. Chiiki consortium energy bun`ya / ceramic bearing yo nano seigyo zairyo no kenkyu kaihatsu (daiichi nendo) seika hokokusho

    NONE

    1998-03-01

    For the purpose of developing high efficient ceramic bearing using nano-structured materials, technical development was proceeded with of raw material powder treatment, forming sintering, processing, structural analysis, property evaluation, etc. As to the study of manufacturing of ceramic balls, the following were conducted by the method developed at Osaka Prefectural Institute of Industrial Technology: coprecipitation laminate processing of ZrO2-Al2O3 system to alumina powder at Okumura Crucible Mfg. Co. Ltd., spherial press processing and sintering at Kyocera Co. Ltd., and precise machining at Nippon Pillow Block Mfg., Co. Ltd. The performance as bearing was measured of the ceramic balls obtained such as surface coarseness, sphericity, crush strength and fatigue life. Surface coarseness and sphericity were the same as those of bearing use silicon nitride, but crush strength was considerably low. In the experiment on rolling fatigue strength as bearing, separation occurred within 100 hours even at a load of 100kgf. It is thought that this is because of the pores remaining on the surface, and the measures to be taken for long life were studied. 12 refs., 64 figs., 27 tabs.

  5. Research and development of basic technologies for next generation industries, 'high-performance crystalline controlled alloy'. Evaluation on final research and development (final report); Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Koseino kessho seigyo gokin (saishu kenkyu kaihatsu hyoka 2)

    NONE

    1989-05-01

    A proposal was given on a new processing process to use Ni-group super alloy, and elucidation was given on super plasticity phenomenon by using non-destructive tests. The Ni-group super heat-resistant alloy Mod. IN-100 subjected to different preforms by means of extrusion was given a super plasticity test at 1,050 degrees C to derive total elongation and 'm' value. As a result, it was disclosed that a material annealed for one hour at 1,070 degrees C after extrusion of 70% at 1,100 degrees C possesses the maximum 'm' value in the vicinity of 2.0 times 10{sup -2}s{sup -1}. The largest key to the new processing method is to improve the nature of the material, in which the plasticity manifestation velocity is accelerated by ten times to the order of 10{sup -2}s{sup -1} as described above. In addition, forging of IN-100 was made possible by using the ordinary forging equipment with the use of two-fold measures. The measures consist of maintaining temperature of IN-100 during casting by heating the die material to about 600 degrees C, rather than keeping it at a constant temperature, and then packing IN-100 in S35C steel material to accommodate the temperature decrease during casting inside the S35C pack. Thus, a processing method was made practical, eliminating need of the forging process to compress and solidify powder itself, that is the extrusion process. (NEDO)

  6. Fiscal 1999 achievement report on research and development of industrial technology of new industry creation type. Research and development of intelligent material and structural system (Development of energy use rationalization technology); 1999 nendo chiteki zairyo kozo system no kenkyu kaihatsu seika hokokusho. Energy shiyo gorika gijutsu kaihatsu

    NONE

    2000-03-01

    Fiber or foil shaped sensor materials and actuator devices were integrated with composite materials and composite material structures for processing and controlling information, and then studies were conducted about materials and structural systems for enabling real-time detection of damage in materials and structures, examination of soundness, control of noise and vibration, and the like. Concerning optical fiber sensors in the development of smart manufacturing technologies, the impact imposed on composite materials by sensors embedded therein was investigated, and the scope of their applicability was determined. In the development of actuator materials and devices, ceramic actuators were fabricated by microwave sintering, and it was found that they were higher in performance by 30% than actuators of the conventional design. In the testing of demonstrators, molded body monitor basic tests using optical fiber sensors were conducted for jet engine static vane models, and temperature dependence of optical intensity was understood. (NEDO)

  7. Fiscal 1999 achievement report on the venture business assisting type regional consortium - Minor business creation base type. Development of hypersensitive photocatalyst using oxide semiconductor thin film having nanostructure; 1999 nendo chiiki consortium kenkyu kaihatsu jigyo seika hokokusho. Nano bisai kozo wo yusuru sankabutsu handotai usumaku ni yoru chokokando hikari shokubai no kaihatsu

    NONE

    2001-03-01

    The thin film structure of photocatalytic titanium oxide, capable of efficiently decomposing hazardous pollutants or the like, is refined to have a nanometric scale structure for a larger specific surface for the development of a photocatalytic thin film or powder film and for the development of decomposition capable air cleaner using a thus developed photocatalytic film. Described in this report are the results of a study conducted to elucidate the fabrication conditions, nanostructures, and photocatalytic features of titanium oxide thin films formed by spray thermolysis, RF (radio frequency) sputtering, reactive sputtering, and sol-gel process, a study of hazardous pollutant decomposing capability and nanostructure, the establishment of fabrication technologies, and the construction of a prototype air cleaner with the results of the said studies applied thereto. Among the various fabrication methods, the technology involving a hypersensitive thin film photocatalyst was established by combining the reactive sputtering method and the sol-gel method. It was found that the formation of prismatic crystals in the sol-gel method was the most important in achieving high performance in the hypersensitive thin film photocatalyst. (NEDO)

  8. Fiscal 1998 research report on the R and D on industrial science and technology for creating new industries. R and D on intelligent material and structure systems; 1998 nendo shinki sangyo soshutsugata sangyo kagaku gijutsu kenkyu kaihatsu seika hokokusho. Chiteki zairyo kozo system no kenkyu kaihatsu

    NONE

    1999-03-01

    This project aims at development of the basic technology of the structure system which has the same intelligent functions as living body such as perception, decision and response through information processing/control (brain) by integrating advanced complex material structure (skeleton), fiber or film sensor material/device (nerve) and actuator material/device (muscle). This report describes the fiscal 1998 research result. On health monitoring technology, study was made on development of high-performance sensors, and a damage detection and self-diagnosis system for structural integrity. On active adaptive structure technology, study was made on improvement of a quasi-elastic behavior model for shape memory alloys, and a candidate actuator for noise and vibration reduction. On actuator materials and devices, study was made on the relation between electronic properties and dielectric/electro-strictive characteristics of the latest advanced ceramic materials available. Creation of silent smart structure was also clarified. Smooth connection and cooperation among groups were promoted through the technical committee and research on domestic and overseas trends. (NEDO)

  9. Fiscal 2000 achievement report on the important regional technology research and development. Research and development of eco-tailored tribo-material creation process technology (Research and development of nanometer-order controlled material creation process technology); 2000 nendo juyo chiiki gijutsu kenkyu kaihatsu seika hokokusho. Eco tailored tribo material sosei process gijutsu no kenkyu kaihatsu (nanometer order de seigyo sareta material sosei process gijutsu no kenkyu kaihatsu)

    NONE

    2001-03-01

    Efforts are made to develop tribo-material creation process technologies capable of meeting the needs of environmental protection and energy conservation relative to automobile engine parts such as piston rings, cams, shims, and the like. Activities are conducted in the three fields of (1) the research and development of nanostructure material creation technologies, (2) research and development of tribological evaluation technologies, and (3) the verification of the developed technologies. In field (1), a nanostructure control process is studied, and tribo-composite materials are examined. In field (1), in fiscal 2000, the arc ion plating method is selected as a nanostructure control process, and the closed type nonequilibrium magnetron sputtering method as the base for development into a process. As for tribo-composite materials, Ti-Si-N based and Cr-Si-N based coatings find their feasibility in shims, and Cr-Si-N based and Cr-Si-C-N based coatings in piston rings. Compiled in this report are the summary, and the studies of nanostructure control process technologies, joint studies, composite ceramic coating practicalization technologies, and technologies for putting to practical use coatings which comprise layers of different substances. (NEDO)

  10. FY 2000 report on the results of the regional consortium R and D project - Regional consortium energy R and D. Final year report. Development of the measuring control technology supporting energy conservation in the manufacturing process of electronics (Design and trial manufacture of IMI); 2000 nendo chiiki consortium kenkyu kaihatsu jigyo - chiiki consortium energy kenkyu kaihatsu. Denshi kikirui seizo process no sho energy shien keisoku seigyo gijutsu no kaihatsu - IMI no sekkei to shisaku (saishu nendo) seika hokokusho

    NONE

    2001-03-01

    As measures taken for energy conservation in the manufacturing plant of electronic devices/equipment such as IC, the development was proceeded with a chlorine gas radio sensing system and a liquid crystal driver IC probe, according to the survey results that it is possible to control energy consumption in air conditioning by completely furnishing poisonous gas monitor in clean room and conserve energy related to the manufacture of IC and LSI tester by using Si for IC probe cards. The following four were carried out: 1) development/trial manufacture of chlorine sensing system; 2) development/trial manufacture of LCD (liquid crystal driver) IC probe; 3) support of trial manufacture of key element technology; 4) comprehensive investigational study of IMI (Intelligent Micro-Instrument). In FY 2000, study was focused on 1) and 2). In 1), a planar type micro-structure sensor was developed, and the trial-manufactured system brought favorable results in sensitivity, response speed and reproductivity. (NEDO)

  11. NEDO Forum 2001. Session on development of geothermal energy (Prospect of geothermal energy); NEDO Forum 2001. Chinetsu kaihatsu session (chinetsu energy no tenbo)

    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. Director Noda of Institute for Geo-Resources and Environment, National Institute of Advanced Industrial Science and Technology, delivered a lecture entitled 'Future course of geothermal technology development,' and Executive Director Iikura of Tokyo Toshi Kaihatsu, Inc., a lecture entitled 'Thinking of geothermal energy.' Described in an achievement report entitled 'Present state and future trend of geothermal development' were the present state of geothermal power generation and characteristics of geothermal energy, signification of the introduction of binary cycle power generation, and the promotion of the introduction of ground heat utilizing heat pump systems. Stated in a lecture entitled 'Geothermal development promotion survey' were the geothermal development promotion survey and its result and how to implement such surveys in the future. Reported in a lecture entitled 'Verification survey of geothermal energy probing technology and the like and the development of geothermal water utilizing power plant and the like' were reservoir fluctuation probing, deep-seated thermal resource probing and collecting, 10-MW class demonstration plant, Measurement While Drilling System, and a hot rock power generation system. (NEDO)

  12. 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 building material integrated solar cell modules - modules with new multi-layer structure); 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 (shinfukuso kozo module))

    NONE

    1999-03-01

    Development is being made on a panel type module that can be used together with an air bubble concrete board (ALC board), and is provided with design characteristics. The development work includes trial fabrication and evaluation of a module with new multi-layer structure, and development of a technology to unitize cells and submodules, and a systematizing method. In the trial fabrication and evaluation, flame retardant and uninflammable modules using fluororesin, and modules with as large area as 4 m{sup 2} were fabricated on a trial basis, in addition to the modules with the basic structure. These modules were given evaluations on such wall material properties as wind pressure resistance, heat and cracking resistance, and fire resistance. In a deformation resistance test considering the integrated use with the ALC board, the developed modules showed a good result. In developing the cells with design characteristics, discussions were given on the inter-cell wiring methods. Development was made on a method to establish a unit structure based on the design and size of a building. In developing the systematization method, the trial fabrication method was applied to a module with lamination structure, a module integrated with the ALC board, and a large-area hollow module to have fabricated the top-light spandrels. (NEDO)

  13. Fiscal 1999 research and development of technologies for practical application of photovoltaic power generation systems. Research and development of photovoltaic power utilizing system and peripheral technologies (Research and development of novel type solar cell module integratable with building materials - Novel multilayer structure module); 1999 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 - shinfukuso kozo module)

    NONE

    2000-03-01

    The project aims to develop solar cell modules of a novel multilayer structure, based on the resin filling structure, hollow structure, and the laminate structure, and integratable with building materials. In fiscal 1999, for the development of cells and submodule structures, cells and submodules were fabricated which were usable with various specimens. In the case of design oriented cells, electrode structures and linkage methods were improved for the enhancement of power generation performance, and a hollow structure and a laminate structure were fabricated. As for the 4m{sup 2}-large module (laminate structure), a specimen with dummy cells arranged along its periphery was fabricated. For cost reduction, a study was made about a module (laminate structure) integrated with an ALC (autoclaved lightweight concrete) board, and the kind of surface glass, cell arrangement, and back sheet types and their respective designs were evaluated. It was then concluded that the module was fit for practical application. The module was then checked for wind endurance in a wind endurance test, for electric characteristics, and for flame inhibition capability in a fire prevention/resistance test. (NEDO)

  14. 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 technologies to manufacture applied type thin film solar cells with new structure and development of high-efficiency hybrid thin film/sheet solar cells); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Usumaku taiyo denchi no seizo gijutsu kaihatsu (oyogata shin kozo usumaku taiyo denchi no seizo gijutsu kaihatsu (kokoritsu hybrid gata usumaku / sheet taiyo denchi no seizo gijutsu kaihatsu))

    NONE

    2000-03-01

    With an objective to develop low-cost and high-efficiency hybrid thin film/sheet solar cells, research and development has been performed. This paper summarizes the achievements in fiscal 1999. The research is related to a hybrid construction, in which the upper cells of amorphous silicon thin film are formed on the lower cells bonded with micro-crystalline silicon thin film relative to a poly-crystalline silicon sheet. In the technology to form the upper cells, a pin-construction using amorphous silicon thin film made by using the plasma CVD process was adopted, whereas an open circuit voltage of 1.45V, a short circuit current of 13.6 mA/cm{sup 2}, and a conversion efficiency of 13.5% were obtained. In the technology to form the substrate for the lower cells, formation of flat silicon thin plate that can be peeled off was identified as a result of adopting the construction in which a graphite substrate is provided on a rotating cooling body of 12-prism type. With regard to the technology to bond and form the lower cells, electrical properties of hetero-bonded cells were discussed, and an open circuit voltage of 0.605V and a conversion efficiency of 14.3% were obtained as a result of enhancing the film quality and optimizing the film thickness. (NEDO)

  15. Research and development project of regional consortiums in fiscal 1998. Research and development of regional consortium energy (development of measuring technology to aid energy conservation in electronic device manufacturing processes (design and trial production of IMI) (Report on the result in the first year)); 1998 nendo chiiki consortium energy kenkyu kaihatsu. Denshi kikirui seizo process no sho energy shien keisoku seigyo gijutsu no kaihatsu (IMI no sekkei to shisaku) (dai 1 nendo)

    NONE

    1999-03-01

    This paper summarizes the development of intelligent micro instruments (IMI) inaugurated in fiscal 1998 as the wide-area consortium project for the Tama area. Research and development will be carried out on the following items: IMI substrate elements utilizing micro machining technology, applicable to micro sensors and micro probes, semiconductor process sensors, electronic device measuring probes, signal processing and communication circuits for wireless sensing. This paper describes the achievements during fiscal 1998. Technologies were transferred from the Mechanical Engineering Laboratory of the Agency of Industrial Science and Technology on silicon micro machining and PZT piezoelectric thin film formation. An IMI research laboratory was installed at the Tokyo Metropolitan University. In developing the IMI substrate elements, different beams applicable to sensors and probes were fabricated on a trial basis, and their mechanical properties were measured. For the semiconductor process sensors, discussions were given on micronization on a chlorine ion analyzer. In developing the electronic device measuring probes, the target was placed on measurement of in-situ characteristics of IC chips on a wafer. A prototype transmitting and receiving circuit board was fabricated for developing the wireless sensing. (NEDO)

  16. Fiscal 1997 report on the development of an energy use rationalization ultra-high tech liquid crystal technology. Project of development/promotion of ultra-high tech electronic technology / technology of design/control/analysis of new functional electronic materials; 1997 nendo kenkyu seika hokokusho energy shiyo gorika chosentan ekisho gijutsu kaihatsu. Chosentan denshi gijutsu kaihatsu sokushin jigyo / shinkino denshi zairyo sekkei seigyo bunseki gijutsu

    NONE

    1998-05-01

    A research was conducted with the aim of developing an ultra-low power consuming type information display which supports the next next generation informatizing society. As to the function combined type fine structure formation technology, a formation technology of fine structure supporting multi-layer pixel by organic polymer materials was established to confirm a possibility of adopting it to high functional liquid crystal display. Concerning the high functional fine structure formation technology, a study was proceeded with on holographic PDLC which is an interference reflection coloring method. In relation to the low temperature film formation technology of ferroelectric thin films, a film formation device was introduced to obtain basic data, and at the same time a possibility was studied of improving film characteristics by laser annealing conducted after the film formation. Moreover, concerning the new functional material technology, studies were made of optical interference/high light-scattering control materials, light alignment elements, ultra-high purity/ultra-reliable optical materials, ultra-anisotropy optical materials, etc. About the light reflection characteristics control technology, studied were new liquid crystal molucular orientaion control technology, multi-dimensional anisotropy structure formation technology, etc. 100 refs., 273 figs., 58 tabs.

  17. Fiscal 1998 achievement report on regional consortium research and development project. Venture business fostering regional consortium--Creation of key industries (Development of Task-Oriented Robot Control System TORCS based on versatile 3-dimensional vision system VVV--Vertical Volumetric Vision); 1998 nendo sanjigen shikaku system VVV wo mochiita task shikogata robot seigyo system TORCS no kenkyu kaihatsu seika hokokusho

    NONE

    2000-03-01

    Research is conducted for the development of a highly autonomous robot control system TORCS for the purpose of realizing an automated, unattended manufacturing process. In the development of an interface, an indicating function is built which easily adds or removes job attributes relative to given shape data. In the development of a 3-dimensional vision system VVV, a camera set and a new range finder are manufactured for ranging and recognition, the latter being an improvement from the conventional laser-aided range finder TDS. A 3-dimensional image processor is developed, which picks up pictures at a speed approximately 8 times higher than that of the conventional type. In the development of orbit calculating software programs, a job planner, an operation planner, and a vision planner are prepared. A robot program which is necessary for robot operation is also prepared. In an evaluation test involving a simulated casting line, the pick-and-place concept is successfully implemented for several kinds of cast articles positioned at random on a conveyer in motion. Difference in environmental conditions between manufacturing sites is not pursued in this paper on the ground that such should be discussed on the case-by-case basis. (NEDO)

  18. 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

    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)

  19. Fiscal 1999 achievement report on regional consortium research and development project. Regional consortium on energy research in its 3rd year (Development of nano-structured materials for ceramic bearing applications); 1999 nendo ceramic bearing yo nano seigyo zairyo no kenkyu kaihatsu seika hokokusho. 3

    NONE

    2000-03-01

    Coprecipitation in a chloride-containing water solution is utilized to deposit zirconia nano-particles on alumina particles for the manufacture of a composite powder and a sintered body. As compared with a conventional CIP (cold isostatic press)-molded compact, a slip-cast compact is improved in flexural strength from 1.1 to 1.36Gpa. A composite powder granulating unit is installed. Although it is known that use of the citric acid as gelatinizer in the coprecipitation process results in a homogenous ZrO{sub 2}-Al{sub 2}O{sub 3} composite powder, yet a method is contrived to achieve high crystallinity without gelatinizer by freezing and drying a chloride-containing water solution in a microgravity field. In the near-net molding of spherical ceramic particles, an error in diameter of not more than 50{mu}m is realized. A mass production technology is established by which an inexpensive general-purpose alumina nano-structured material is die-compacted for the manufacture of low-cost ceramic bearings. A high-speed super-flat spherical surface processing technology is developed. In a 25kg-load fatigue test conducted for a combination of nano-structured ceramic balls and steel flat plates that bear the balls, a 240-hour life is attained. The bearing steel stands comparison with those available on the market. (NEDO)

  20. Study of the ablation of extra-low temperature aggregate target and the development of technology of formation of non-equilibrium high-quality functional thin films by the plume control; Gokuteion gyoshutai target no abureshon oyobi purumu seigyo ni yoru hiheiko kohinshitsu kinosei usumaku seisei gijutsu kaihatsu ni kansuru kenkyu

    NONE

    1997-03-01

    A study was made on factors of the formation of high-quality thin films in the pulse laser deposition (PLD) method, a synthesis method of high-grade functional material thin films. In the experiment, plume current measurements using Cu target were conducted for the control of electric and magnetic fields. Especially, the measuring evaluation was made of the two-dimensional distribution including not only the central part of the substrate placed opposite to the target, but the periphery of the substrate. As a result, the following was found out. The distribution of charged particles in the plume is different in positive charge and negative charge, and the negative charge is dispersed/distributed more widely. Accelerating/decelerating effects of charged particles by the electric field are saturated when the bias voltage absolute value is approximately 100V. Ionization is promoted by giving the magnetic field, and the plume distribution is expanded. Positive charged particles of the plume in the magnetic field are decelerated. In the distribution control by giving the electric field, it is effective to think improvement of the distribution not by attracting charged particles by the electric field, but by shutting out charged particles of the same polarity. 29 refs., 75 figs., 2 tabs.

  1. FY 1992 Report on the results of the research and development of manganese nodule collection system. Instrumentation/control systems; 1992 nendo mangan dankai saiko system no kenkyu kaihatsu (mangan dankai saiko system) seika hokokusho. 5/5. Keisoku seigyo system hen

    NONE

    1993-03-01

    This project is aimed at development and fabrication of the test system for collecting manganese nodules on deep seabeds, and demonstration of its functions by the comprehensive marine tests, to collect the design data necessary for a commercial mineral-collecting system. The efforts are directed to development of the control system which coordinates and integrates the instrumentation, control and display functions of the total system and individual subsystems. Two areas are investigated; (1) test schedules; preparation of the draft manuals for implementation of the tests of the instrumentation/control systems, and (2) design and fabrication of the test devices. The item (1) prepares the draft manuals for implementation of the tests of those sections related to the instrumentation/control systems. The item (2) includes the detailed designs of the instrumentation/control systems, and constituent systems, such as control, data processing, data transmission, underwater cable and underwater position finding systems, conducted in coordination with the related subsystem development sections. The other devices fabricated include the underwater cable systems and terminals for the instrumentation system dedicated for the mineral-lifting system. (NEDO)

  2. Achievement report on research and development in fiscal 1989 for fundamental technologies for next generation industries. Research and development on photoreactive materials (Research on control of association status of photochromic compounds); 1989 nendo hikari hanno zairyo no kenkyu kaihatsu seika hokokusho. Photochromic kagobutsu no kaigo jotai seigyo ni kansuru kenkyu

    NONE

    1990-03-01

    With an objective of creating ultra-high density organic photo recording elements for photon mode recording and rewritable wavelength multiplex recording by utilizing control of association status of photochromic compound, research and development has been performed. This paper summarizes the achievements in fiscal 1989. In developing the materials, verification was made on effectiveness of the newly structured positive polarity model. The method was used to attempt synthesis of four kinds of new spiropyrane, among which it was discovered that BSP1822 forms J-association complex in the long wavelength region. In the thin film forming technology, the J-association complex of BSP1822 was stabilized successfully in the film mixed with bi-molecular film forming material. In order to develop a technology to form dry photochromic thin films, an organic molecular beam epitaxial device and a thin film structure analyzer were introduced. In the elucidation and research on fundamental properties, discussions were given on properties of the SP1822LB film revealed by the steady-state light and laser pulse light. Furthermore, the molecular orientation of the SP1801 on the air-water interface was investigated, and molecular models on the air-water interface were considered. (NEDO)

  3. Report on the results of efforts for fiscal 1997. Development of technologies for creating high-quality crystal materials for low-loss power control devices; 1997 nendo seika hokokusho. Teisonshitsu denryoku seigyo soshiyo kohinshitsu kessho zairyo sosei gijutsu kaihatsu seika hokokusho

    NONE

    1998-03-01

    Basic technologies are developed for the manufacture of high-quality crystal materials large in diameter and homogeneous in property which will allow power control semiconductor devices to grow more sophisticated in function and to be lower in the loss they suffer. Physical properties of molten semiconductor and the like are measured accurately, which include surface tension, density, viscosity, electric conductivity, thermal conductivity, emissivity, diffusion coefficient, vapor pressure, heat capacity, contact angle, and solid solution equilibrium distribution coefficient. In computer-aided simulation, as in the previous year, simulation codes are developed for the analysis of flow, temperature distribution, and diffusion behavior in the gas phase; simulation codes are developed for the analysis of 3D unsteady thermal flows in the melt; and a main program is developed which governs experimental calculations. As for experiments in model Czochralski crucibles, small crucible are used in which experiments are conducted in the temperature range of normal to 200degC for the acquisition of experimental data for verification. Measured by use of the model crucibles are the temperature distribution in the bath, the surface flow speeds, and the flows inside the melt. 140 refs., 153 figs., 10 tabs.

  4. Fiscal 1999 achievement report on regional consortium research and development project. Regional consortium on energy research in its 3rd year (Research and development of mezoscopic composite phase material based on heat-/wear-resistant metal); 1999 nendo mezoscopic fukuso soshiki seigyo tainetsu taimamosei kinzokuki fukugo zairyo no kenkyu kaihatsu seika hokokusho. 3

    NONE

    2000-03-01

    Using an in-situ method, three kinds of Fe-C-Ni-Cr-Mo-Nb-based alloys are developed, whose strength is not less than 800MPa at 1073K. They exhibit, in a high-temperature erosion wear test, a wear resistance which is 2-3 times higher than that of conventional materials. When they are cast, wear-causing graphite precipitation is suppressed thanks to the cast iron coagulating in gaps in the ceramic formed into a net shape. It is also found that in this process the precipitation of cementites etc., which improves on the abrasion and wear characteristics, is accelerated and that the cementites etc. are finely dispersed for improvement on the brake (brake block) characteristics. Tentatively produced brake blocks are tested for performance at the Railway Technical Research Institute. The new materials are found to exhibit a wear resistance which is 2.2 times higher, and a braking capability 1.6 times better, than those of conventional materials. In the case of an Fe-50Cr-4.8C alloy produced by an MA (mechanical alloying) method, {alpha}-Fe is dispersed into M{sub 23}C{sub 6} for a remarkable improvement on the wear-resisting feature. A 10%TiC cermet exhibits a remarkably high wear resistance, that is, a transverse rupture strength of 1270MPa which is higher than that of a cast high-speed steel. (NEDO)

  5. Development of automatic air intake door control system for exhaust gas. Prevention of contaminated air by controlling A/C air intake door; Haiki gas taio auto naigaiki system no kaihatsu. Eakon suikomiguchi seigyo ni yoru haiki gas no shashitsunai eno shinnyu boshi

    Honda, Y; Samukawa, K [Denso Corp., Aichi (Japan)

    1997-10-01

    Thermal comfort in the cabin of vehicle is upgraded by developing the climate control system Passengers must control the intake door of air conditioner to reduce entering Exhaust Gas into the cabin. This paper is concerned with development the automatic intake door control system to acquire high comfort performance of passengers. 8 figs., 1 tab.

  6. Fiscal 1997 survey report. Subtask 8 (hydrogen utilization worldwide clean energy system technology) (WE-NET) (development of hydrogen combustion turbines/development of combustion control technology); 1997 nendo seika hokokusho. Suiso riyo kokusai clean energy system (WE-NET) subtask 8 suiso nensho turbine no kaihatsu nensho seigyo gijutsu no kaihatsi

    NONE

    1998-03-01

    Concerning the development of hydrogen combustion turbines, the paper described the fiscal 1997 results. As a hydrogen/oxygen combustor, the annular combustor was studied. Based on the results obtained by the last fiscal year, a combustor for the evaluation test was designed/fabricated. Oxygen is mixed with vapor at the portion of the burner, rotated/jetted (flame held by the circulation flow generated) and made to burn with hydrogen (porous injection). The smooth ignition and equilibrium wall temperature distribution were made possible. Concentrations of the residual hydrogen/oxygen in the stoichiometric mixture ratio combustion were both less than 1%. Further, can type combustor I is a type in which hydrogen and oxygen are burned near the burner and then are diluted by vapor. Improved of the burner structure and diluted vapor hole, it was tested. In can type combustor II, a mixture of oxygen and vapor is supplied and burned with hydrogen. The appropriate supply of oxygen was 20% distribution to the primary scoop and 80% to secondary. In both combustors, smooth ignition was possible, and concentrations of the residual hydrogen/oxygen in the stoichiometric mixture ratio combustion were controlled at minimum (approximately 1%). The evaluation method for the optimum hydrogen/oxygen combustor was studied. 142 figs., 24 tabs.

  7. FY 1998 annual report on the development of plasma-aided surface treatment processes by in-situ controlling (second year); 1997 nendo in-situ seigyo ni yoru plasma riyo hyohi shori process no kaihatsu seika hokokusho (dai 2 nendo)

    NONE

    1999-03-01

    This R and D project is aimed at stable production of high-quality, important machine members, which are difficult to sufficiently achieve the required properties by a single material, by carburization while minimizing use of expensive alloy metals, where high-temperature carburizing time is reduced by a plasma-aided system to save energy, and, at the same time, the conventional oil-hardening system is replaced by a He gas cooling/recycling system to solve the environmental problems involved in the former. The exhaust gases released from the plasma-aided system are adequately treated to prevent the problems caused thereby. The conditions of the plasma itself and treated surfaces are sensed in-situ, and the data are fed back to the process controlling system, to keep the treated object stable and high in quality, while minimizing energy consumption. The FY 1998 efforts were directed to studies on methods for sensing the plasma and treated surfaces, and specifications of a mini-plant for the demonstration tests, and to collection of characteristic data for development of some new products to be produced. (NEDO)

  8. 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 of peripheral element technologies - Survey of novel voltaic cell structure solar cell development); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Chokokoritsu kessho kagobutsu taiyo denchi no seizo gijutsu kaihatsu (shuhen yoso gijutsu ni kansuru chosa kenkyu - shinhatsuden soshi kozo taiyo denchi kaitaku no chosa kenkyu)

    NONE

    2000-03-01

    The present state and trend are surveyed of organic ferroelectric thin films, new carbon materials, fullerene compounds, and thermophotovoltaic (TPV) power. In the study of organic ferroelectric thin-film solar cells, the effort still remains at the basic stage, with the conversion rate as low as 3% in Europe and 2% in Japan. The progress of basic studies, however, is worth attention. It is deemed that 15% is the photoconversion rate to be currently expected from new carbon material solar cells. Fullerene compounds include some semiconductors whose bandgap values may be controlled across a 0.75-1.95eV range, and they may find their place in thin-film solar cells. However, their physical properties are not fully known, and their development into devices such as solar cells is scarcely reported. The research and development of TPV in the U.S. is led by NASA (National Aeronautics and Space Administration) and NREL (National Renewable Energy Laboratory), with their efforts concentrated on the development of portable power sources utilizing combustion heat. In Europe, TPV application to small-scale residential cogeneration systems is under study. (NEDO)

  9. Fiscal 1998 intellectual infrastructure project utilizing civil sector functions. Research and development project on prompt-effect type intellectual infrastructure creation (Research and development concerning relations between sintered body textural structure and material characteristics in fine ceramics); 1998 nendo minkan no kino wo katsuyoshita chiteki kiban jigyo seika hokokusho. Sokkogata chiteki kiban sosei kenkyu kaihatsu jigyo (fine ceramics no shoketsutai soshiki kozo to zairyo tokusei tono kankei ni kansuru kenkyu kaihatsu)

    NONE

    2000-03-01

    Research and development was carried out involving fine ceramic sintered body textural structure evaluation methods for the development of process technologies for achieving higher quality and lower cost. Studies centered about a method for evaluating coarse pores and coarse grains in sintered bodies, relations between sintered body fracture strength and textural structure, and the standardization of evaluation methods. As the result, an evaluation method for observing pore structures in a sintered body flake specimen under an optical microscope and another for observing coarse grains under a polarization microscope were proposed. As for the effect of coarse defects on the fracture strength of ceramics, it was demonstrated experimentally and theoretically that coarse defects several tens of micrometers in size greatly affected the fracture strength. In the study of methods for sintered body grain size evaluation, findings were obtained about the processing of the specimen surface. (NEDO)

  10. Fiscal 1998 New Sunshine Program achievement report. Development for practical application of photovoltaic system - Development of ultrahigh-efficiency crystalline compound solar cell manufacturing technology - Research and survey of peripheral element technologies (Research and survey for development of solar cell of new power generation device structure); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Chokokoritsu kessho kagobutsu taiyo denchi no seizo gijutsu kaihatsu / shuhen yoso gijutsu ni kansuru chosa kenkyu (shinhatsuden soshi kozo taiyo denchi kaitaku no chosa kenkyu)

    NONE

    1999-03-01

    Attention is paid to behavior at the molecular level with reference taken to the photosynthetic mechanism, and a behavioral mechanism is proposed, which incorporates, in place of the conventional band model, a concept of a molecular structure based on electron transfer, excitation energy transfer, and reactions of oxidation and reduction. Discussion is then made on elements of technology development for the embodiment of high-efficiency organic ferroelectric thin-film solar cells. The elements taken up include the feasibility of organic ferroelectric thin-film cells, photoelctric conversion systems of plants and photosynthetic bacteria, solar cells using donor-acceptor type dyes, organic thin-film solar cells using conductive polymers, and efficient photoexcitation of organic dyes. Fullerene compounds are semiconductive and their band gaps may be controlled to stay within the range of 0.75-1.9eV, and this justifies a hope that they will serve as solar cells. As for TPV (thermophotovoltaic) conversion, it is under development mainly at NASA (National Aeronautics and Space Administration) as a transportable power source based on heat of combustion. Efforts are also being exerted since 1990 in five European countries to develop TPV systems for small-scale cogeneration. (NEDO)

  11. Report on achievements in fiscal 1999 on the project for development of an energy use rationalizing technology. Development of a basic technology to design and fabricate an innovative light-weight structure; 1999 nendo kakushinteki keiryo kozo sekkei seizo kiban gijutsu kaihatsu seika hokokusho

    NONE

    2000-03-01

    This paper describes the achievements in fiscal 1999 on development of a basic technology to design and fabricate an innovative light-weight structure. Taking CFRP and aluminum alloy having excellent specific strength as the main object materials, weight reduction and reliability enhancement in aircraft structure are intended, while reducing largely the number of parts. In particular, the wings, the nose and the leading edge construction of civilian aircraft are of the structure assembled with a large number of parts, and are suitable as the research objects. A new conception will be introduced that structural members are fabricated by utilizing the characteristics of integrally formed CFRP, which will be assembled into a whole structure. Large structural metallic members currently used have such drawbacks as the use of great number of parts, complexity in manufacturing processes, low reliability, weight increase and corrosion due to rivet jointing. In order to solve these problems, development will be made on technologies for thin-wall large-size precision casting, and high-accuracy high-quality welding. To combine different kinds of members, and optimize strength, weight and economic performance of the entire structure, high-efficiency integration technologies will be discussed, and prototype full-size structure will be fabricated. The current fiscal year has started up the technology committee and its operation, analyzed technological problems in the entire structure, and established the action programs. An investigation was performed on the technological trends in overseas countries. (NEDO)

  12. FY 1992 report on the survey of geothermal development promotion. Geological structure (geology/alteration zone) survey (No. A-1 - Haneyama area); 1992 nendo chinetsu kaihatsu sokushin chosa chijo chosa hokokusho futai shiryo. Chishitsu kozo (chishitsu henshitsutai) chosa hokokusho (No. A-1 Haneyama chiiki)

    NONE

    1993-05-01

    For the purpose of elucidating a possibility of existence of geothermal reservoirs in the Haneyama area, Oita Prefecture, survey of the geological structure (geology/alteration zone) was conducted. The survey was made for the area of 280km{sup 2} lying from Kusu Town to Kokonoe Town, Oita Prefecture in terms of the route survey of 174km, fabrication/judgement of 52 rock slices, whole rock chemical analysis of 21 rocks, age determination, analysis of rock mineral, X-ray diffraction, literature collection, etc. As a result of the survey, the following conclusion was obtained. When considering a possibility of existence of heat source near this area, the area near the present volcanic front was regarded as promising. The fracture structure in the depths seen in the gravity structure (part of sharp dip of gravity) is more closely related to activity of geothermal water than the active structure of E-W system near the earth surface newly formed and is important when considering the existence of geothermal resource. The periphery of the Shishimuta sedimentation zone where Takigami, Oodake, Hacchobaru and Oguni are located was especially regarded as an area propmising of geothermal energy. In the survey area, the geothermal potential was the highest near Noya - Mizuwake Pass. (NEDO)

  13. Developments of DPF systems with mesh laminated structures. Performances of DPF systems which consist of the metal-mesh laminated filter combustion with the alumina-fiber mesh, and the combustion device of trapped diesel particles; Mesh taso kozo no DPF no kaihatsu. Kinzokusen to arumina sen`i mesh ni yoru fukugo filter to filter heiyo heater ni yoru DPF no seino

    Kojima, T; Tange, A; Matsuda, K [NHK Spring Co. Ltd., Yokohama (Japan)

    1997-10-01

    For the purpose of continuous run without any maintenance, new DPF (diesel particulate filter)systems laminated by both metal-wire mesh and alumina-fiber mesh alternately, are under the developments. The perfect combustion of trapped diesel particulate can be achieved by a couple of the resistance heating devices inserted into the filter. 5 refs., 7 figs., 3 tabs.

  14. Research report on promotion of geothermal energy exploitation for fiscal 1997. Test drilling into the structure, construction work for research, and analysis (No.B-4 Kuenohira district); 1997 nendo chinetsu kaihatsu sokushin chosa. Kozo shisui chosa koji oyobi kaiseki hokokusho (No.B-4 Kuenohirayama chiiki)

    NONE

    1998-06-01

    Cuttings from a test drilling in the Kuenohira district, Oita Prefecture, are subjected to analysis. The result of ground surface investigation suggested the presence of a magma reservoir to serve as heat source and a highly permeable zone along a fault to help the formation of a thermal water retention system. At the N9-KH-1 drilling site, however, no geothermal reservoir is found along the periphery of the subsidence in the western part of the research area. In this district, it is deemed, no geothermal reservoir has been formed due to shortage of heat supply from the heat source and insufficient geothermal water activity. It is also deemed that the district, in which fractures of the E-W system, NNW-SSE system, and NE-SW system are distributed, is a region at which meteoric water flows into larger convection systems. As for the westward stretch of the geothermal reservoir (where the N9-KH-1 site is situated) that has developed on the swell of the basement, detected to exist at N2-MW-2 and N3-MW-6 in the eastern part of the research area, it is found to be not so extensive. (NEDO)

  15. FY 2000 report on the results of the research and development project for utilization of information of high-molecular-weight structures in a living body. Survey on the technological trends of utilizing the reactions with metals in a living body; 2000 nendo seitai kobunshi kozo joho riyo gijutsu kaihatsu chosa hokokusho. 'Seitai kinzoku hanno riyo gijutsu' ni kansuru gijutsu doko chosa

    NONE

    2001-03-01

    Described herein are the FY 2000 results of the survey on the technological trends of utilizing the reactions with metals in a living body, noting the bio-processes effectively coping with the environmental problems. The effects of heavy metals on microorganisms have been investigated on the molecular biology level, but are not fully elucidated. Recently, the microorganisms capable of converting inorganic metal ions in water into the insoluble compounds have been known, leading to possibility of bioremediation to solve pollution by heavy metals, which have detrimental effects on human health. Heavy metals must be recovered, because they are not extinct by decomposition. The plant aided purification has been attracting attention to cope with heavy metals accumulated in soil. Application of bacteria-aided leaching, which is adopted as one ore smelting process, to the technologies for utilizing metals in a living body has been expected, because diversified activities of inanimate matters in extreme environments have been known. Recently, bio-machining of metals aided by Thiobacillus ferrooxidans, one species of independent nutrient bacteria capable of eating metals, has been developed to a potentially viable stage. (NEDO)

  16. Fiscal 2000 achievement report on the important regional technology research and development. Research and development of eco-tailored tribo-material creation process technology (Higher order composite structure material creation process); 2000 nendo juyo chiiki gijutsu kenkyu kaihatsu seika hokokusho. Eco tailored tribo material sosei process gijutsu (koji fukugo kozo material sosei process gijutsu)

    NONE

    2001-03-01

    Efforts are made to develop novel tribo-material creation processes through the application of an inclined constitution/structure control, a nonstoichiometric constitution control, or the like, to the manufacture of materials having excellent tribological characteristics for the purpose of improving on the performance of tribology related parts. In fiscal 2000, activities are conducted in the four fields of (1) the experimental manufacture of tribo-materials by powder sintering and the review of the process, (2) the experimental manufacture of tribo-materials by melting and the review of the process, (3) the experimental manufacture of brake disk materials and the review of the process, and (4) the experimental manufacture of bearing materials and the review of the process. In field (1), the preparation of an Fe{sub 3}Al/FeAl intermetallic compound powder by mechanical alloying and gas atomization and the conditions of pressure sintering by HIP (hot isostatic press) or the like are established. Concerning the melting method, basic techniques are established and an experimentally built rotor is evaluated for braking characteristics. In field (3), efforts are made to develop Cu/Sb free brake linings that will match TiAl-made rotors and then an MgO/C system is discovered, which is found to be on the same level as the conventional materials. (NEDO)

  17. Structures of bats; Komori no kozo

    Natori, M. [Institute of the Space and Astronautical Science,Tokyo (Japan); Kishimoto, N. [The University of Tokyo, Tokyo (Japan)

    1999-12-05

    This paper gives an outline of the structures of bats. Unlike birds, bats have a wing membrane structure. The membrane constituted of the skin is spread between five fingers to form the wing. The wing membrane is seen in the forelimbs and the tail. In the chest and the shoulder, the ligament sheet supports the muscles. The wing membrane is about 0.5mm in thickness, with a fiber net woven through reflecting a tension field in flying. The fiber net is composed of compound materials of elastin and collagen. The shoulder joints consists of the clavicle, scapula and humerus, which is close to human beings. The elbow joints rotate only inside the plane of the wings. The leg joints are hook-shaped, with the tendon sheath provided with ruggedness. The carpus is made up of eight bones and is characterized by the ability of spreading and storing the wings. At the time of storing the wing membrane, the finger joints are stored and, during the flight after the wings are spread, it forms the flapping wing plane. Lightweight and formation of the sturdy front edge are characteristics common to other flying creatures. The spreading and the storing are possible through the direct motion of the hands. The shoulder joints and the carpus of the human beings are closer to those of bats than to those of birds. (NEDO)

  18. Fiscal 1999 achievement report on regional consortium research and development project. Regional consortium research and development of energy in its 2nd year (Development of energy conservation assisting measurement control technology for electronic equipment manufacturing process--Designing and tentative construction of IMI); 1999 nendo denshi kikirui seizo process no sho energy shien keisoku seigyo gijutsu no kaihatsu seika hokokusho. 2. IMI no sekkei to shisaku

    NONE

    2000-03-01

    In the research and development of IMI (intelligent micro instrument) substrate devices, a designing method is established and, using the method, device manufacturing technologies are tested and evaluated and the results are reflected on the experimental construction of a sensor and an IC probe. In the research and development of a sensor and a sensing system, efforts are focused on a chlorine gas sensor, and a prototype No. 1 is designed and fabricated. In a test conducted in the presence of gas of 0-10ppm concentration, the prototype transmits signals that indicate excellent linearity and responsiveness. In the research and development of a probe for measuring electronic devices, efforts are made to put to practical use an IC (integrated circuit) probe of 40{mu}m pitch times 400 arrays, and specifications to develop for the probe are defined. A tentatively built cantilever structure shows values that justify its practical application. In the research and development of an IMI electronic circuit, a prototype No. 1 of a system for processing and transmitting sensor signals by radio is manufactured, which operates on the carrier frequency of 2.4GHz and sampling frequency of 4kHz. The prototype performs to achieve the goal. (NEDO)

  19. FY 2000 report on the results of the research and development project for utilization of information of high-molecular-weight structures in a living body. Survey on the technological trends of utilizing the reactions with metals in a living body; 2000 nendo seitai kobunshi kozo joho riyo gijutsu kaihatsu chosa hokokusho. 'Seitai kinzoku hanno riyo gijutsu' ni kansuru gijutsu doko chosa

    NONE

    2001-03-01

    Described herein are the FY 2000 results of the survey on the technological trends of utilizing the reactions with metals in a living body, noting the bio-processes effectively coping with the environmental problems. The effects of heavy metals on microorganisms have been investigated on the molecular biology level, but are not fully elucidated. Recently, the microorganisms capable of converting inorganic metal ions in water into the insoluble compounds have been known, leading to possibility of bioremediation to solve pollution by heavy metals, which have detrimental effects on human health. Heavy metals must be recovered, because they are not extinct by decomposition. The plant aided purification has been attracting attention to cope with heavy metals accumulated in soil. Application of bacteria-aided leaching, which is adopted as one ore smelting process, to the technologies for utilizing metals in a living body has been expected, because diversified activities of inanimate matters in extreme environments have been known. Recently, bio-machining of metals aided by Thiobacillus ferrooxidans, one species of independent nutrient bacteria capable of eating metals, has been developed to a potentially viable stage. (NEDO)

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

    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.

  1. Imaging of salt structure; Gan`enso kozo no imaging

    Akama, K; Saeki, T [Japan National Corp., Tokyo (Japan). Technology Research Center; Matsuoka, T [Japan Petroleum Exploration Corp., Tokyo (Japan)

    1996-10-01

    Due to the improvement of algorithm and the advancement of calculation performance, the imaging by depth migration before stacking is being put into practice from the viewpoint of both calculation cost and accuracy. A lot of imaging examples have been already reported from the survey areas with complicated velocity structures, such as the North Sea and the Gulf of Mexico. Effectiveness of the method has been confirmed. For imaging techniques in Japan National Oil Corporation and Japan Petroleum Exploration Co., Ltd., high-speed depth migration before stacking and high efficiency velocity structure estimation technique have been investigated. This paper describes necessary care to be taken when using depth focusing analysis (DFA) for correcting a velocity model, as an interim stage of case study. The results of depth migration before stacking using dip moveout (DMO) velocity were further inferior to the section obtained by the migration after tracking. Tendency of velocity errors was distinctly deviated with the variation of depth and horizontal position. It was not suitable for modifying the velocity model using DFA. 4 refs., 4 figs.

  2. Magnetic structure of volcanic neck; Kazangankei no jiki kozo

    Makino, M; Okuma, S; Morijiri, R; Nakatsuka, T [Geological Survey of Japan, Tsukuba (Japan)

    1997-05-27

    This paper describes the summary and result of magnetic exploration on the Kabutoyama volcano in the city of Nishinomiya, Hyogo Prefecture, Japan. It also states the interpretation and discussion on magnetic anomaly in the volcanic conduit of the mountain by using a three-dimensional magnetic structure model. Terrain surface magnetic exploration for the Kabutoyama volcano was performed by using six traverse lines each in different azimuths with the triangulation point at the summit as the basic point and by using a proton magnetometer. The exploration results of the six traverse lines around the Kabutoyama volcano may be generalized as follows: magnetic anomaly in the vicinity of the summit is moderate with little change, but it increases to 500 nT to 2,500 nT in the vicinity of the distances of 150 m to 200 m; a peak is formed with a width of a few tens of meters; and the magnetic anomaly showed a trend of rapidly decreasing at outer sides of the peak. The results of the magnetic exploration and the magnetization intensity measurement leads to a belief that such a magnetic anomalous band of an annular form would exist corresponding to the boundary or its vicinity of andesite and granite, and the Rokko granite having magnetization intensity as small as can be neglected would be distributed at outer sides of the boundary. The result of the three-dimensional magnetic structure model calculation, which assumes the internal structure of the magnetic structure to be non-uniformly magnetized, reproduced the magnetic anomaly patterns well as compared with the observation results. 1 ref., 5 figs.

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

    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.

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

    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.

  5. Four-quadrant speed control circuit of DC servo motor using integrated voltage control method; Den`atsu sekibunchi seigyo wo mochoiita chokuryu dendoki no shishogen sokudo seigyo

    Okui, H. [Osaka polytechnic College, Osaka (Japan); Irie, H. [Osaka Electro-Communication Univ., Osaka (Japan)

    1996-08-20

    The Two-Quadrant chopper is constructed by using smoothing reactor in common of the step-down chopper and step-up chopper of the DC chopper. Furthermore, since the circuit connected in bridge type by using these two groups has both of positive and negative voltage from DC source and can supplies the current from positive and negative directions for load, it is called in general as the Four-Quadrant chopper. As the Four-Quadrant chopper may supply and regenerate power, it works as power amplifier with high efficiency. In this paper, the speed control circuit of DC servo motor using Four-Quadrant integrated voltage control circuit is described. The speed control circuit is composed of simple circuits of one adder integrator and four hysteresis comparators. The Four-Quadrant speed control circuit has a DC motor speed feedback loop and a voltage feedback loop which connects with AC, it plays the Four-Quadrant speed control without current inspection. The speed control characteristics with no steady state error over four quadrants may be obtained, changing of the quadrant is smooth and transition response is rapid. 9 refs., 11 figs.

  6. Improvement of efficiency by proportional and integral control for compact boiler; Shoyoryo boiler no renzoku seigyo (P.I seigyo) ni yoru seino kaizen

    Yanagida, T. [Kawasaki Thermal Engineering Co. Ltd., Shiga (Japan)

    1998-10-01

    Efficiency of a compact boiler is improved by the introduction of a continuous P.I. control. It is controlled by the following procedure. The proportional control, which controls magnitude of combustion in proportion to a load requirement, is combined with an integral control function which keeps steam pressure at a given level, in order to stabilize steam pressure at a level comparable to that of a large, water-tube type boiler. A stable steam pressure is realized by including control of make-up water supply, to minimize the effects of water supply on steam pressure. The effects of characteristics of the combustion valve on control are relaxed by programming. In addition to the above, rotational speed of the motor for the forced draft fan is controlled for each load level, to reduce power consumption. These bring improved quality of steam, i.e., stabilized steam pressure, improved follow-up characteristics of the steam and secured dryness of the steam. Energy-saving is also achieved, i.e., reduction of noise and power consumption at a low combustion load are achieved by improved real boiler efficiency and inverter-aided control of the forced draft fan. Low-NOx burners are adopted, to abate NOx content to 60ppm or less at any load. 16 figs.

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

    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.

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

    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.

  9. Artificial control of biocatalytic reaction; Seitai shokubai hanno no jin`iteki seigyo

    Nakamura, K. [Kyoto University, Kyoto (Japan). Institute for Chemical Research

    1997-08-25

    Selective composition of optically active compounds by use of biocatalysts is discussed. No search is made for any particular microbes or enzymes, but predetermined ones are used. For an increase in the selective yield of L-type carnitine by reducing 4-chloroacetoacetic acid ester using baker`s yeast, the ester length should be enlarged to that of octyl ester. Just as in this case, steric control by ground substance modification is often effective. Lipase helps on esterification which is contrary to hydrolysis in an organic solvent and, even in the optical division in this process, steric control by ground substance modification (for example by changing the structure of the acyl section) is effective. Immobilization of biocatalysts for use in reaction occasionally exerts some effect on stereoselectivity. Two types of enzymes may be participating in a reaction and inhibiting selectivity, and then a two-layer system of water and organic solvent may be effective in performing steric control over the situation. Another measure is to inhibit the activity of either of the two enzymes by use of a selective inhibitor utilizing enzyme reaction. The kind of solvent is also an influential factor. 11 refs., 7 figs.

  10. Car audio using DSP for active sound control. DSP ni yoru active seigyo wo mochiita audio

    Yamada, K.; Asano, S.; Furukawa, N. (Mitsubishi Motor Corp., Tokyo (Japan))

    1993-06-01

    In the automobile cabin, there are some unique problems which spoil the quality of sound reproduction from audio equipment, such as the narrow space and/or the background noise. The audio signal processing by using DSP (digital signal processor) makes enable a solution to these problems. A car audio with a high amenity has been successfully made by the active sound control using DSP. The DSP consists of an adder, coefficient multiplier, delay unit, and connections. For the actual processing by DSP, are used functions, such as sound field correction, response and processing of noises during driving, surround reproduction, graphic equalizer processing, etc. High effectiveness of the method was confirmed through the actual driving evaluation test. The present paper describes the actual method of sound control technology using DSP. Especially, the dynamic processing of the noise during driving is discussed in detail. 1 ref., 12 figs., 1 tab.

  11. Surface design of powder by precise modification; Kotai hyomen no seimitsuna kaishitsu seigyo

    Chikazawa, Masatoshi

    1999-01-01

    The progress of the recent technology is it in high performance, the one manufactured by development of the high function material. It is skillful, and the nature of this effective material is greatly influenced by the various materialities of the raw material powder and a function again. Therefore, the moment it diversifies all the more from now on, a demand for the raw material powder is thought to become more precise control than the thing of the materiality of the powder and the function. Precise quality function technology on the surface of the powder which should make the materiality of the purpose and a functional expression possible is very important to meet such a requirement. Quality silica powder is used as the sample, and you must investigate about the micro-mechanism of the water control by effective based quality of surface from such a position. (NEDO)

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

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

    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.

  14. Optimal control of helicopters following power failure. Helicopter no engine koshoji no saiteki hiko seigyo

    Okuno, Y.

    1993-01-01

    In order to study the optimal control of helicopters, the control procedures following power failure were theoretically investigated by applying nonlinear optimal control theory to the following four optimization problems. The first was minimization of the touchdown speed following power failure. Comparisons between the calculated optimal solutions and the empirical flight test results showed that pilots used nonoptimal controls, especially in the timing and amplitude of the collective flare before touchdowns. The second was prediction of the height-velocity (H-V) boundaries. The calculated H-V boundaries showed good correlation with the flight test results. The third was optimization of the takeoff procedures for category A STOL operation following power failure. The results showed that the required takeoff distance using the normal takeoff procedure can be significantly reduced. The fourth was evaluation of the takeoff performance for category A VTOL operation. The calculating method of the maximum takeoff weight was confirmed, and possibility of allowing the payload to be increased was shown. 38 refs., 53 figs.

  15. Vibration control of bridges and buildings hybrid system. Kyoryoter dot tatemono no shindo seigyo hybrid hoshiki

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

    1991-11-15

    Multistory buildings, suspension bridges, and cable stayed bridges tend to become huge, and technology of controlling their vibration caused by strong winds and earthquakes is becoming an important subject for study. A description is made on a hybrid system which is a combination of the conventional passive system and active system, having merits of both of the systems. Verification test made using a model and an example of application to an actual bridge are introduced. This hybrid control system has been applied to the main tower of the cable stayed bridge on Route 12 of the Tokyo expressway. It is installed and in operation on the top of the tower to improve the workability, and can decrease the vibration of the tower caused by vortical excitation produced during the construction of the main tower. With the hybrid system, the actuator capacity can be reduced to about 1/5 for the similar damping performance to that of the active system with the same mass ratio. In addition, the weight of the equipment can be nearly halved in comparison with the passive system. Moreover, it has such a high safety characteristic as being used as a passive system when power supply is cut off because the controlling force of the system is smaller as compared with the active system. 2 refs., 11 figs.

  16. Change in pore structure of coals by activation with KOH; KOH fukatsushita sekitan no saiko kozo

    Maruyama, K.; Yoshizawa, N.; Ishikawa, E.; Kobayashi, M.; Toda, Y.; Yamada, Y.; Shiraishi, M. [National Institute for Resources and Environment, Tsukuba (Japan)

    1996-10-28

    Three typical Japanese coals of non-coking coal, coking coal and anthracite were heat-treated with KOH, and change in their pore structure was examined by absorption of N2, X-ray diffraction and TEM observation. In addition, the relation between a coal rank and pore structure was also studied by absorption experiment of N2. In experiment, the mixture of coal and KOH in a nickel holder was heat-treated in N2 gas flow at heating rate of 2{degree}C/min, and held at a fixed temperature for one hour. To clarify the pore structure, N2 absorption isotherms were measured at -196{degree}C under nearly 76cmHg using a commercially available full-automatic absorption measurement equipment. Based on the X-ray diffraction and TEM observation results on activated coals, the relation between the N2 absorption and pore structure was studied. The results are summarized as follows: (1) The yield and absorption ability of coals increase with a coal rank, (2) The specific surface area of coals reaches its peak at 800{degree}C in activation temperature regardless of a coal rank, and (3) The activation behavior of coals is dependent on a coal rank. 5 refs., 7 figs., 1 tab.

  17. Dissipative structure of mechanically stimulated reaction; Kikaiteki reiki hanno ni okeru san`itsu kozo

    Hida, M. [Okayama Univ., Okayama (Japan). Faculty of Engineering

    1994-12-20

    Recently various studies have been conducted concerning the state changes of materials obtained through mechanical alloying (MA) or mechano-chemical (MC) processing. What is noticeable is the quasi-steady state of almost all the materials obtained through various processes including MA and MC, and that the super cooling, supersaturating and high residue distortion realized under unbalanced conditions have not been clarified. In other words, the tracing capability to the external binding conditions is low. In this report, the appearance of the high temperature phase and high pressure phase obtained through MA or MC processing, the forming of amorphous, the mesomerism of the amorphous materials, the interesting phenomena generated by combination between the mechanical disturbance and chemical reactions were discussed with concrete examples, and a steady dissipative organization theory was approached from the viewpoint of dissipative structure development which is equal to the forming process of the quasi-steady phase. 34 refs., 2 figs.

  18. Structure and reaction of electrolytic solution. Denkaishitsu yoeki no kozo to hanno

    Otaki, H. (Okazaki National Research Inst., Aichi (Japan))

    1990-07-05

    An electrolytic solution has been recognized as an ion transporting system since the oldest time in the history of electrochemistry, and the chemistry related thereto forms the most basic field of electrochemistry. In this article, the progress of chemistry concerning electrolytic solutions since M. Faraday is briefly stated, and in view of very scanty structural knowledge available on other solutions in comparison with the structure of water on which extensive studies have been made, the respective structures of such non-aqueous solutions as the mixed solvent of N,N-dimethylformamide (DMF)-acetonitrile (AN) and the mixed solvent of dimethylsulfoxide (DMSO)-2,2,2-triphloroethanol (TFE) are studied. In addition, concerning the solvation when ions exist in such a non-aqueous solvent mixed system, the selective solvation of Cu {sup 2+} ions in the DMF-AN and Cu {sup 2+} as well as Cl {sup {minus}} ions in the DMSO-TFE is respectively explained, and the solvent effect, etc. of Cu {sup 2+} ions and Cl {sup {minus}} ions on the complex forming reaction are discussed. 17 refs., 8 figs., 2 tabs.

  19. Mathematical structure of ocean container transport systems; Kaiyo container yuso system no suriteki kozo ni tsuite

    Shinkai, A [Kyushu University, Fukuoka (Japan). Faculty of Engineering; Chikushi, Y [Nippon Telegraph and Telephone Corp., Tokyo (Japan)

    1997-10-01

    Mathematical structure of a vessel arrangement program was discussed in order to learn roles of container ships in ocean transport systems among China, NIES/ASEAN countries and Japan. Formulation is possible on a mathematical handling method for sailing route connection diagrams between ports, a transport network to indicate container movements, a service network to indicate sailing routes, and a network generalizing them. This paper describes an analysis made on the container transport system between Japan and China, taken as an example. Four ports were selected each from Japan and China, and the statistical database for fiscals 1996 and 1994 was utilized to set models for: (a) the liner network system with transshipment at the port of Shanghai and (b) the cruising route system going through the ports of Yokohama, Nagoya and Kobe. A hypothesis was set that a consortium (coordinated ship allocation) can be implemented ideally and completely. The transport network (a) is lower by 10% in total cost than the transport network (b), resulting in 1.6 times greater productivity. Actual service network is closer to the network (b), but the system can be utilized for discussing guidelines on vessel arrangement programs with which shipping companies pursue better management efficiency under a condition that the consortium can be formed. 10 refs., 6 figs., 2 tabs.

  20. Today and tomorrow on optimization of structural systems. Kozo system saitekika no genjo to shorai

    1992-07-20

    It has been 30 years since a conception structurally optimized design method'' was advocated as a new structural design system which links three factors; mathematical programming, a finite element method, and computers. This paper summarizes the current states in the optimizing technologies in Japan and views over their future, with reference mainly to the two symposiums held in the past as an activity of the subcommittee for structural system optimization in the Japan Society of Civil Engineers. The summary covers the following matters: Optimizing algorithms for structural designs, fuzzy theories, practical use of expert systems and AI, maintenance and management systems for structures, vibration control, shock resistant designs, inverse problems and structure identifying problems, and designs of underground and off-shore structures. For instance, examples of bridge designs include a minimum mass design on a pedestrians' bridge incorporating vibration sensitivities into restricting conditions, comparisons of economics in suspension bridges using a multi-stage determination method, and many others. Optimizing technologies are believed to advance greatly in the future and be used as a very routine design tool. 145 refs., 1 fig., 3 tabs.

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

    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.

  2. Magnetic structure of Akita-Yakeyama volcano; Akita Yakeyama chiiki no jikiteki kozo

    Okuma, S [Geological Survey of Japan, Tsukuba (Japan)

    1996-10-01

    Akita-Yakeyama is a Quaternary volcano located in the north-western part of the Sengan geothermal area. Geothermal resource surveys have been performed from the middle of the 1970s in the Sengan geothermal area, and the Sumikawa geothermal power plant started its operation in 1995. By the analysis, the magnetic basement depth became lower in the north of Yakeyama body. However, the distribution including low magnetic anomaly in the south of Yakeyama body could not be explained only by a simple magnetic structure model. In this study, the magnetic anomaly in this area was analyzed in detail, and a construction of the magnetic structure model was intended by taking borehole data into account. The low magnetic intensity zone with low amplitude agreed well with the geothermal alteration zone. The high magnetic intensity zone and the low magnetic intensity zone corresponded with the distributions of volcanic rocks magnetized normally and reversely, respectively. Kakkonda and Matsukawa geothermal power plants were located in the distinct low magnetic intensity zones. There was a low magnetic intensity zone with long wave length over the whole Sengan geothermal area. A high magnetic intensity zone was observed in the northern foot of this area. From the magnetic measurements of borehole sample rocks, this was found to correspond with the newly formed granite body. 9 refs., 4 figs.

  3. Surface structures and optical functions of living things. Seibutsu no hyomen kozo to kogaku kino

    Kumazawa, K.; Takimoto, J.; Tanaka, S.; Tabata, H. (Nissan Motor Co. Ltd., Tokyo (Japan))

    1993-12-24

    This paper describes the following matters as one example of structural coloring of non-motional nature on the coloring mechanism in wings of Morpho sulkouskyi butterfly: The structure of scales on butterfly wings may be modelled into such a structure of a right angle frame of reference having a cyclic arrangement (with an interval of 0.7 [mu]m) of a zigzagged protrusion in the 'x' direction called a ridge (with a height of 1.8 [mu]m and a width of 0.54 [mu]m, the shape not changing in the 'y' direction), and having a plurality of protrusions of a ridge form called lamella in the 'z' (height) direction. A simple multi-layered thin film model was assumed that has lamella layers and air layers laminated alternately in the 'z' direction. The model was used to calculate reflection spectra on vertically incident light based on thickness and refractive index of material layers determined by a structural analysis of the scales. The result was considerably close to the reflection spectra of scales measured by using a microscopic spectrophotometer when the number of layers is set to six. The paper describes briefly examples of motility structural coloring (skin cells of rainbow color in tropical fish). 7 refs., 12 figs.

  4. Imaging of salt structure. 2; Gan`enso kozo no imaging. 2

    Akama, K; Saeki, T [Japan National Oil Corp., Tokyo (Japan). Technology Research Center; Matsuoka, T [Japan Petroleum Exploration Corp., Tokyo (Japan)

    1997-05-27

    With respect to a velocity model structuring method using depth focusing analysis (DFA) as a depth image processing technology used for elastic wave exploration, its practicability was discussed. First, synthetic data were used to extract problems in the DFA. The problems were extracted by using a model with constant velocity as an initial model, deciding on the sequential structures from the higher order, and estimating velocity and depth of each layer by using a model fitting type method. In its application to field data, characteristic records include those for rock salt beds distributed in a sheet form and the folding structure associated with the growth thereof, as acquired in offshore seismic exploration carried out in the eastern part of Gulf of Mexico. The conclusion is that the DFA is a method that can derive a velocity model with required accuracy by using a minimum number of repetition even against relatively complex structures. Particularly, the quick convergence from the initial model with a constant velocity until a certain accuracy is reached is a noteworthy advantage. 3 refs., 6 figs.

  5. High resolution resistivity profiling using STRATAGEM system; Stratagem wo mochiita kobunkainohi teiko kozo tansarei

    Yamane, K; Inoue, J; Takasugi, S [GERD Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Inazaki, T [Public Works Research Institute, Tsukuba (Japan)

    1997-05-27

    A tensor type CSMT method (STRATAGEM) was introduced for the purpose of investigating shallow subsurface, and a field test has been carried out thereon. This system consists of a transmission section, and a sensor section and a data acquisition and processing section to observe waveforms in a responsive electromagnetic field. The signal source is a semi-circular air loop with a radius of a little smaller than 2 m. The measuring points were selected at locations about 200 m apart from the signal source to measure two electric field components and two magnetic field components by using sensors installed on the ground surface. The field test was performed at the Yutsubo area in Oita Prefecture, Japan. The electric field dipole is basically 5 m long, while S and E lines are 10 m long. The measurement frequency ranges from 96 kHz to 1000 kHz. The measurement time was about five minutes, and the whole measurement work including apparatus set-up and withdrawal was completed in about 15 minutes to minimize interference with the field which is a meadow. The field test result revealed that resistivity profile in shallow subsurface can be obtained much more easily than with the conventional CSMT method. 2 refs., 10 figs.

  6. Countermeasures for increasing sequence continuous casting; Renchu kinosei taikabutsu zaishitsu, kozo kaizen ni yoru renrenchusu kojosaku

    Tsuda, Masato; Shinagawa, Hiroaki; Kamada, Ryuji; Hiraga, Yutaka; Hara, Takayasu [Nippon Steel Corp., Tokyo (Japan)

    1999-06-01

    In the second continuous casting line of Kure Iron Works, Nisshin Steel Co., Ltd. improvement of the continuous casting counts per tundish was attempted for a target of max. 20. The results are as follows: (1) Non-SiO{sub 2} conversion of material for the long nozzle immersed part: About 20% improvement of durability compared with a conventional material to clear 0.059 mm/min of the targeted erosion speed when 20 CCC/TD is realized, (2) Durability improvement of SN plate: About 20% durability improvement was attained compared with a conventional material by the adoption of a non-SiO{sub 2} material, (3) Erosion resistance improvement of the immersed nozzle slug line part: Castable period was extended to 1 ch life improvement by increasing zirconia content, (4) Rise of stopper full open position: The rise of the full open position produced less variation of melt level than the conventional structure without increase of the SN opening, enabling plugging prevention between the stopper head and the upper nozzle which was an objective of this improvement, (5) Structure improvement of the upper nozzle: This improvement successfully prevented leaks from damage of the casting stop nozzle metal case and enabled casting under low gas flow even in TD nozzle plugging. These improvements gave a possibility to achieve max. 20 CCC/TD. (NEDO)

  7. Coherent structure in geostrophic flow under density stratification; Mippei seisoka ni aru chikoryu no soshiki kozo

    Tsujimura, S.; Iida, O.; Nagano, Y. [Nagoya Institute of Technology, Nagoya (Japan)

    1998-10-25

    The coherent structure and relevant heat transport in geostrophic flows under various density stratification has been studied by using both direct numerical simulation and rapid distortion theory. It is found that in a neutrally stratified flow under system rotation, the temperature fluctuations become very close to two-dimensional and their variation is very small in the direction parallel to the axis of rotation. Under the stable stratification, the velocity and temperature fluctuations tend to oscillate with the Brunt-Vaisala frequency. Under the unstable stratification, on the other hand, vortex columns are formed in the direction parallel to the axis of rotation. However, the generation of the elongated vortex columns cannot be predicted by the rapid distortion theory. The non-linear term is required to generate these characteristic vortex columns. 11 refs., 18 figs., 1 tab.

  8. Leading research of smart structural system; Chiteki kozo system no sendo kenkyu

    NONE

    1996-03-01

    The technology trend was surveyed to clarify the themes of smart structural system towards its R and D. The smart structural system is a structural system which incorporates functions of perception, judgment and learning by integrating functions, structures and information, to ensure the structural soundness at real time and control the active-adaptive of shapes. The final goal of it is to make materials and structures similar to organic systems. It has a self-repair function which can detect the generation and propagation of cracks and prevent the destruction positively with conducting self-diagnosis. High performance, high efficiency and energy saving are expected by combining the conversion of design concept into destruction control and the regulation of vibration, noise and shape. Especially, it is effective for the safety of aerospace systems, earthquake disaster measures, and extension of machine life. This report describes the background, purpose, R and D activities in Japan and foreign countries, and basic development themes. In addition, it arranges the needs of various industrial fields systematically, and proposes a concrete concept. Furthermore, the effects expected by the application of smart structural systems and the outline of international technical cooperation are presented. 110 refs., 164 figs., 19 tabs.

  9. Fatigue of cable anchorage of large cable stayed bridge; Daikibo shachokyo cable teichaku kozo no hiro

    Endo, T.; Matsumoto, T. [Honshu-Shikoku Bridge Authority, Tokyo (Japan); Tsukahara, H. [Yokogawa Bridge Corp., Tokyo (Japan); Miki, C. [Tokyo Institute of Technology, Tokyo (Japan)

    1995-10-21

    Design considerations such as design schemes, the assemblage and welding of steel plates, and safety for fatigue of welded connections have to be taken for the cable anchorages of the steel cable stayed bridges. In this study, two full scale models, which have different shape of box anchorages welded to the web of the main girder, were made to investigate fatigue characteristics as well as assemblage of plate and gelding details. Finite element analyses for both test models and actual bridges here carried out to compare stress distribution. It was confirmed that the assemblage and welding of both types of box anchorage were attainable kith required quality and accuracy. According to the fatigue test, fatigue cracks originated from the weldings of the bearing plate to which the load from cable socket applied directly were caused by out-of-plane bending of the bearing plate. It was proved that the slight modifications of the details around the bearing plate resulted in sufficient fatigue strength in both types of anchorage. 1 ref., 23 figs., 2 tabs.

  10. Hybrid structure in civil engineering construction.; Doboku bun`ya ni okeru fukugo kozo.

    Ikeda, S. [Yokohama National Univ. (Japan). Faculty of Engineering

    1995-03-30

    The structure of steel-concrete hybrid structure which is recently attracting attention is outlined quoting some examples. The effects of steel-concrete hybrid structure are classified according to the characteristics. The Normandie Bridge completed in January this year near the mouth of the Seine River in France is a cable stayed bridge with the world largest span, and it has a hybrid structure of ingeniously combined steel and concrete. The Dole Bridge in France is a hybrid bridge with 7 continuous spans having steel corrugated sheets in the web. Hybrid structure has come to be applied to many structures other than the superstructure works of bridges. The substructures of bridges are applied to immersed tunnels, and the usefulness has come to be recognized widely. The features of hybrid structure can contribute well to the reinforcement of existing structures. In addition, adoption of hybrid structure has been studied as the best method for repairing and reinforcing structures damaged by earthquakes. 8 refs., 6 figs., 1 tab.

  11. FY1995 molecular control technology for mining of methane-gas-hydrate; 1995 nendo methane hydrate no bunshi seigyo mining

    NONE

    1997-03-01

    The objectives of the investigation are as follows: 1) developing a method to control formation/dissociation of methane-gas-hydrate, 2) developing a technology to displace methane gas by CO{sub 2} in methane-gas-hydrate deposit, 3) developing a technology to produce methane gas from the deposit efficiently. The final purpose of the project is to create new mining industry that solves both the problems of energy and global environment. 1) Clustering of water molecules is found to play the key role in the methane gas hydrate formation. 2) Equilibrium properties and kinetics of gas hydrates formation and dissociation in bulk-scale gas-hydrate are clarified in the practical environmental conditions. 3) Particle size of hydrate deposit influences the formation and dissociation of bulk-scale gas-hydrate crystal. 4) Mass transfer between gas and liquid phase in turbulent bubbly flow is a function of bubble diameter. The mass transfer depends on interfacial dynamics. (NEDO)

  12. Autonomous navigation of the vehicle with vision system. Vision system wo motsu sharyo no jiritsu soko seigyo

    Yatabe, T.; Hirose, T.; Tsugawa, S. (Mechanical Engineering Laboratory, Tsukuba (Japan))

    1991-11-10

    As part of the automatic driving system researches, a pilot driverless automobile was built and discussed, which is equipped with obstacle detection and automatic navigating functions without depending on ground facilities including guiding cables. A small car was mounted with a vision system to recognize obstacles three-dimensionally by means of two TV cameras, and a dead reckoning system to calculate the car position and direction from speeds of the rear wheels on a real time basis. The control algorithm, which recognizes obstacles and road range on the vision and drives the car automatically, uses a table-look-up method that retrieves a table stored with the necessary driving amount based on data from the vision system. The steering uses the target point following method algorithm provided that the has a map. As a result of driving tests, useful knowledges were obtained that the system meets the basic functions, but needs a few improvements because of it being an open loop. 36 refs., 22 figs., 2 tabs.

  13. Simulation of speed control in acceleration mode of a heavy duty vehicle; Ogatasha no kasokuji ni okeru shasoku seigyo simulation

    Endo, S; Ukawa, H [Isuzu Advanced Engineering Center, Ltd., Tokyo (Japan); Sanada, K; Kitagawa, A [Tokyo Institute of Technology, Tokyo (Japan)

    1997-10-01

    A control law of speed of a heavy duty vehicle in acceleration mode is presented, which is an extended version of a control law in deceleration mode proposed by the authors. The control law is based on constant acceleration strategy. Using the control law, target velocity and target distance can be performed. Both control laws for acceleration and deceleration mode can be represented by a unified mathematical formulae. Some simulation results are shown to demonstrate the control performance. 7 refs., 9 figs., 2 tabs.

  14. Optimum differential terms for lateral motion control performance on the vehicle; Yokoundo seigyo seino ni oyobosu hisenkei bibunko no saitekika

    Miyamori, A [Japan Consumer Information Center, Tokyo (Japan); Nakaya, H [Shibaura Institute of Technology, Tokyo (Japan)

    1997-10-01

    As general knowledge, the lateral control performance of vehicle improves as differential terms increases. But subjective rating has its limits of effect. The coefficient of differential terms and saturated steer angle velocity were set up using the experimental vehicle in several steps. Consequently, the optimum range, that subjective and objective rating were compatible, were made clear. 4 refs., 6 figs., 1 tab.

  15. Next generation railway system. ; Control system for JR Maglev. Jisedai tetsudo system. ; Rinia shinkansen no seigyo system

    Matsuda, K [Central Japan Railway Company, Nagoya (Japan)

    1993-07-10

    Aiming at achieving a maglev Shinkansen that links Tokyo with Osaka at a speed of 500 km/h, an experimental maglev line is being constructed in Yamanashi Prefecture. This paper explains a train control system as the main subject. The system mounts superconductive magnets directly on bogies to propel a train using actions of moving magnet fields generated from propulsion coils paved on ground. Because of its mechanism to levitate and guide the train using induction coils superposed on the propulsion coils, no special control device is required for the levitation and guidance. This is a difference from a normal conduction magnet levitation system. Its speed control also differs from the conventional railway systems. It uses a ground primary control system that controls supply currents from substations on the ground, including braking control. One substation controls one train only. Automatic control is made on all controls related to travelling, including a control from train movement start to stops at predetermined positions, scheduled-time operation control, and jerk control. The construction of the experimental line is under steady progress. 5 figs.

  16. Design and model experiments on thruster assisted mooring system; Futaishiki kaiyo kozobutsu no thruster ni yoru choshuki doyo seigyo

    Nakamura, M; Koterayama, W [Kyushu Univ., Fukuoka (Japan). Research Inst. for Applied Mechanics; Kajiwara, H [Kyushu Institute of Technology, Kitakyushu (Japan). Faculty of Computer Science and System Engineering; Hyakudome, T [Kyushu University, Fukuoka (Japan)

    1997-12-31

    Described herein are dynamics and model experiments of the system in which positioning of a floating marine structure by mooring is combined with thruster-controlled positioning. Coefficients of dynamic forces acting on a floating structure model are determined experimentally and by the three-dimensional singularity distribution method, and the controller is designed by the PID, LQI and H{infinity} control theories. A model having a scale ratio of 1/100 was used for the experiments, where 2 thrusters were arranged in a diagonal line, one on the X-axis. It is found that the LQI and H{infinity} controllers of the thruster can control long-cycle rolling of the floating structure. They allow thruster control which is insensitive to wave cycle motion, and efficiently reduce positioning energy. The H{infinity} control regulates frequency characteristics of a closed loop more finely than the LQI control, and exhibits better controllability. 25 refs., 25 figs.

  17. Formal verfication of a railway crossing controller using time petri nets; Taimupetorinetto wo mochiita fumikiri seigyo puroguramu no keishikiteki kensho

    Sasaki, R. [The Nippon Signal Co. Ltd., Tokyo (Japan); Yoneda, T. [Tokyo Inst. of Technology, Tokyo (Japan)

    1994-12-20

    In the system requesting the real-time property, detecting the dugs in the method by carrying out the verification at the stage of method is important for excluding the error from the latter process. The verifying device for investigating whether the properties are satisfied by the system with the expression of the operation rules of system with time Petri nets and presenting the properties to be verified with real-time linear time-phase theory is developed by Yoneda, et al. In this paper, the verification of train check and warning-controlling operation in railway-crossing is carried out by using said verifying device, and the effectiveness of this verifying method is examined. In the practical controlling program, the mistakes in design occurs easily because of the further execution of complex processings including the countermeasure to the defect of short circuit in controlling unit and the control of up/down trains. It is planned in the future to modeled such processings as well as functions and to verify the system more utilizable. 12 refs., 11 figs., 1 tab.

  18. Study on the advanced orientation control technology of biopolymers; Seitai kobunshi zairyo no kodo haiko hairetsu seigyo gijutsu no kenkyu

    NONE

    1996-03-01

    Creation of new functional organic materials for the medical application has been investigated under the microgravity. Facilities of the Japan Microgravity Center were used for this study. For the high-speed synthesis of uniform polymer particles under the microgravity condition for ten seconds, appropriately good results were obtained in the oxidation polymerization of pyrroles. For the synthesis of organic conductive thin films by the electrolytic polymerization, the resistance of electrolyte became larger in the microgravity field. It was required to set conditions so as to enhance the effects of microgravity environment. For the orientation control and thin film formation of proteins, the bacteriorhodopsin was examined. It was found that the microgravity improved the quality of electrocoatings. When the surface tension and viscosity of coating liquid were appropriately controlled under the microgravity, thin films were able to be prepared by utilizing a change from 1g to {mu}g. When the high viscosity fluid is placed in the artificial two-dimensional space composing of two parallel plates, and the low viscosity fluid, such as air, is injected into the above, the interface grows in the finger shaped pattern, namely, viscous fingering. The influence of gravity on this phenomenon was also investigated. 11 refs., 45 figs., 5 tabs.

  19. Design and model experiments on thruster assisted mooring system; Futaishiki kaiyo kozobutsu no thruster ni yoru choshuki doyo seigyo

    Nakamura, M.; Koterayama, W. [Kyushu Univ., Fukuoka (Japan). Research Inst. for Applied Mechanics; Kajiwara, H. [Kyushu Institute of Technology, Kitakyushu (Japan). Faculty of Computer Science and System Engineering; Hyakudome, T. [Kyushu University, Fukuoka (Japan)

    1996-12-31

    Described herein are dynamics and model experiments of the system in which positioning of a floating marine structure by mooring is combined with thruster-controlled positioning. Coefficients of dynamic forces acting on a floating structure model are determined experimentally and by the three-dimensional singularity distribution method, and the controller is designed by the PID, LQI and H{infinity} control theories. A model having a scale ratio of 1/100 was used for the experiments, where 2 thrusters were arranged in a diagonal line, one on the X-axis. It is found that the LQI and H{infinity} controllers of the thruster can control long-cycle rolling of the floating structure. They allow thruster control which is insensitive to wave cycle motion, and efficiently reduce positioning energy. The H{infinity} control regulates frequency characteristics of a closed loop more finely than the LQI control, and exhibits better controllability. 25 refs., 25 figs.

  20. Research on crystal growth by using pressure as a control parameter; Atsuryoku seigyo ni yoru kessho seicho ni kansuru kenkyu

    NONE

    1997-10-31

    This research project aims to establish a technique for crystal growth using pressure as a principal control parameter, and combining it with a microgravity condition, to develop a novel process material fabrication. Since the solubility of materials depends on pressure, it is possible to control a supersaturated condition for crystal growth by changing pressure. The growth condition can be controlled precisely, which is not possible by conventional methods that vary temperature and other factors. On the other hand, because a concentration diffusing field is formed autonomically around crystals in association with their growth, density convection is generated under gravity as a result of difference in the concentrations, making the growth conditions severely complex and uncontrollable. Ideal crystal growth condition control may be possible if the pressure control is performed under micro-gravity by which generation of the density convection can be suppressed. Realization has been achieved on in-situ observation by using high-magnification microscope which uses a diamond anvil cell, development of a hydraulic type optic pressure cell, and a high- speed crystal growing technology by means of pressure control utilizing the cell. New findings were also obtained on effects of pressure on crystal forms, and the pressure induced solid phase transfer mechanism. 67 refs., 49 figs., 3 tabs.

  1. Study of design factors of vehicle headlamp control systems; Zenshoto seigyo system no hyoka shuho no kento

    Kamishima, H; Miwa, T; Sasaki, T; Imai, M [Nissan Motor Co. Ltd., Tokyo (Japan); Sumi, T [Niles Parts Co. Ltd., Tokyo (Japan)

    1997-10-01

    The on-and-off timing of vehicle headlamp control systems varies with weather conditions. Cloudy weather has a wider light energy distribution from visible to infrared radiation than clear weather. Silicon photodiodes, which can detect visible to infrared radiation, have larger output currents on cloudy evenings than on clear evenings under the same brightness conditions. The systems should be designed with such factors in mind as spectral characteristics of windshield, filters, sensor, and eyesight. 4 refs., 9 figs.

  2. Study on automatic tuning of ship`s PID regulators; Hakuyo seigyo system no gain jido chosei ni kansuru kenkyu

    Nakatani, T. [Toyama Mercantile Marine College, Toyama (Japan); Otsu, K.; Moriyoshi, N. [Tokyo Univ. of Mercantile Marine, Tokyo (Japan); Okazaki, T. [Nagoya Institute of Technology, Nagoya (Japan)

    1996-12-31

    Proportional, integral and derivative (PID) controls are used for a steering system and a main engine control unit installed in a vessel. Among them, this paper describes effectiveness of a PID gain tuning method using a limit cycle by means of relay control which is safer and simpler than conventional limit sensitivity methods. The present method was applied to an actual marine control system to conduct an actual vessel experiment. As a result of applying the method to a bow azimuth control system using a rudder, a new azimuth setting was set with an overshoot of 1.6 degrees in a ten-degree azimuth changing experiment. With respect to direction maintaining steering performance, the present method was capable of controlling the direction at a speed loss to about 80% of the ship`s autopilot. As a result of applying the method to a bow azimuth control system using a bow thruster, direction maintaining and changing control was realized in a low speed range in which rudder effect is lost. As a result of applying it to a main engine governor system and performing control of main engine rotation speed, it was found possible to derive control gains in a safe state without applying an excessive load to the main engine both under load and no load conditions. 14 refs., 8 figs., 11 tabs.

  3. Consideration on local blast vibration control by delay blasting; Danpatsu happa ni yoru kyokuchiteki shindo seigyo ni kansuru ichikosatsu

    Mogi, Gento; Adachi, Tsuyoshi; Yamatomi, Jiro [The University of Tokyo School of Engineering Department of Geosystem Engineering, Tokyo (Japan); Hoshino, Tatsuya [Mitsui Mining and Smelting Corp., Tokyo (Japan)

    1999-10-31

    In this research, local blast vibration control based on the theory of superposition of waves was investigated. Firstly, the influence of delay time errors of conventional electric detonators upon the level of local blast vibration was examined. Secondly, for a further effective local blast vibration control, a new delay blasting design concept 'combined delay blasting' that postulates the use of electronic detonators, which virtually have no delay time errors, is proposed. For a delay blasting with uniform detonation time intervals, an optimum time interval to minimize the local PPV (Peak Particle Velocity) is obtained based on the relationship between the PPV and the time interval, which is derived by superposing identical vibration time histories of each single hole shot. However, due to the scattering of the actual delay time caused by errors, PPV of a production blast seldom coincides with the estimated one. Since the expected value and the variance of PPV mainly depend on sensitivity of PPV around the nominal delay time, it is proposed that not only the optimum but also several sub-optimum candidates of delay time should be examined taking error into consideration. Concerning the 'combined delay blasting', its concept and some simulation results are presented. The estimated reduction effect of blast vibration of a delay blast based on this concept was quite favorable, indicating a possibility for further effective local blast vibration control. (author)

  4. Study on molecular controlled mining system of methane hydrate; Methane hydrate no bunshi seigyo mining ni kansuru kenkyu

    Kuriyagawa, M; Saito, T; Kobayashi, H; Karasawa, H; Kiyono, F; Nagaoki, R; Yamamoto, Y; Komai, T; Haneda, H; Takahashi, Y [National Institute for Resources and Environment, Tsukuba (Japan); Nada, H [Science and Technology Agency, Tokyo (Japan)

    1997-02-01

    Basic studies are conducted for the collection of methane from the methane hydrate that exists at levels deeper than 500m in the sea. The relationship between the hydrate generation mechanism and water cluster structure is examined by use of mass spectronomy. It is found that, among the stable liquid phase clusters, the (H2O)21H{sup +} cluster is the most stable. Stable hydrate clusters are in presence in quantities, and participate in the formation of hydrate crystal nuclei. For the elucidation of the nucleus formation mechanism, a kinetic simulation is conducted of molecules in the cohesion system consisting of water and methane molecules. Water molecules that array near methane molecules at the normal pressure is disarrayed under a higher pressure for rearray into a hydrate structure. Hydrate formation and breakdown in the three-phase equilibrium state of H2O, CH4, and CO2 at a low temperature and high pressure are tested, which discloses that supercooling is required for formation, that it is possible to extract CH4 first for replacement by guest molecule CO2 since CO2 is stabler than CH4 at a lower pressure or higher temperature, and that formation is easier to take place when the grain diameter is larger at the formation point since larger grain diameters result in a higher formation temperature. 3 figs.

  5. Shift operation control of automatic transmission by {mu}-synthesis; {mu} synthesis ni yoru jido hensokuki no hensoku seigyo

    Nagaoka, M; Nishiyama, Y; Nakayama, Y; Kamada, S [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    We have developed a control technology, which the robust control theory is applied, to improve a shift quality of automatic transmission for a passenger car. When applying the robust control theory to the transmission control, many issue arise such as difficulty in system identification and/or the capability of ECU for computing. Recently, We have obtained an exact performance that allows the transmission to be robust controlled with an onboard ECU by improving the system identification process and reducing the model dimensions after the controller design finalized. 6 refs., 7 figs.

  6. Study on automatic tuning of ship`s PID regulators; Hakuyo seigyo system no gain jido chosei ni kansuru kenkyu

    Nakatani, T [Toyama Mercantile Marine College, Toyama (Japan); Otsu, K; Moriyoshi, N [Tokyo Univ. of Mercantile Marine, Tokyo (Japan); Okazaki, T [Nagoya Institute of Technology, Nagoya (Japan)

    1997-12-31

    Proportional, integral and derivative (PID) controls are used for a steering system and a main engine control unit installed in a vessel. Among them, this paper describes effectiveness of a PID gain tuning method using a limit cycle by means of relay control which is safer and simpler than conventional limit sensitivity methods. The present method was applied to an actual marine control system to conduct an actual vessel experiment. As a result of applying the method to a bow azimuth control system using a rudder, a new azimuth setting was set with an overshoot of 1.6 degrees in a ten-degree azimuth changing experiment. With respect to direction maintaining steering performance, the present method was capable of controlling the direction at a speed loss to about 80% of the ship`s autopilot. As a result of applying the method to a bow azimuth control system using a bow thruster, direction maintaining and changing control was realized in a low speed range in which rudder effect is lost. As a result of applying it to a main engine governor system and performing control of main engine rotation speed, it was found possible to derive control gains in a safe state without applying an excessive load to the main engine both under load and no load conditions. 14 refs., 8 figs., 11 tabs.

  7. FY 1999 report on the results of the experimental verification on the establishment of a centralized load control system. Study of an advanced centralized load control system, etc.; 1999 nendo fuka shuchu seigyo system kakuritsu jissho shikehn kodo fuka shuchu seigyo system nado no kenkyu. Fuka shuchu seigyo system kakuritsu jissho shiken

    NONE

    2000-03-01

    The paper described the FY 1999 results of the experimental verification on a centralized load control system for the residential electric power demand. The air conditioning control is effective for load leveling, and for it, it is important to infiltrate the consciousness of energy saving into people. Users are not very interested in the information on power rates, would rather tend to seek comfortableness, and are less conscious of energy saving on days of unusual summer heat. Further, the power control in peal time zone was made by indicating users the actual state of power use by a combination of the two-way communication and the automatic meter reading system. However, at present, it cannot be denied that the power rate is higher even in indirect load control equipment with necessary/minimum conditions than the existing power source. It is a must to reduce the cost. The liberalization of electric power is progressing fast, and incentives for DSM are decreasing, but each of advanced countries is getting sensitive to the obedience to COP3. In addition to DSM such as the rebate program and financing program by the existing surcharge system, they are making efforts for development/promotion of new energy by creating the green electric power market. The load control technology is expected which does not disturb comfortableness and amenity of users. (NEDO)

  8. Industry brief letter; Kasupikaioki sekiyu koku kaihatsu sekiyu shigen kaihatsu nado sannyu

    NONE

    1999-02-01

    4 companies of Petroleum Resources Development, Indonesia Petroleum, Teikoku Petroleum an Itochu Petroleum Development will sign petroleum exploration and development contract in petroleum mining property offshore of Caspian Sea with Azerbaijan National Petroleum Company, Sokar Company. In another mining property, Mitsui group reached conclusion with Sokar Company in mining right. Resource development competition between existing international petroleum majors and Japanese petroleum companies around Caspian Sea may be further intensified. (translated by NEDO)

  9. Geological structure of Osaka basin and characteristic distributions of structural damage caused by earthquake; Osaka bonchi kozo to shingai tokusei

    Nakagawa, K; Shiono, K; Inoue, N; Senda, S [Osaka City University, Osaka (JP. Faculty of Science); Ryoki, K [Osaka Polytechnic Collage, Osaka (Japan); Shichi, R [Nagoya University, Nagoya (Japan). Faculty of Science

    1996-05-01

    The paper investigates relations between the damage caused by the Hyogo-ken Nanbu earthquake and the deep underground structures. A characteristic of the earthquake damage distribution is that the damage concentrated near faults. Most of the damages were seen on the side of faults` relatively falling rather than right above the faults and of their slightly slanting to the seaside. Distribution like this seems to be closely related to underground structures. Therefore, a distribution map of the depth of basement granite in Osaka sedimentary basin was drawn, referring to the data on basement rock depth obtained from the distribution map of gravity anomaly and the result of the survey using the air gun reflection method. Moreover, cubic underground structures were determined by 3-D gravity analysis. The result was concluded as follows: when observing the M7 zone of the low land, in particular, where the damage was great from an aspect of gravity anomaly, the basement rock below the zone declined near the cliff toward the sea, which indicates a great possibility of its being a fault. There is a high possibility that the zone suffered mostly from the damage caused by focusing by refraction and total reflection of seismic wave rays. 3 refs., 8 figs.

  10. Velocity structure of Nojima-fault by VSP method; VSP ho ni yoru Nojima danso no sokudo kozo

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

    1996-05-01

    In order to investigate in detail structures of the fractured fault band, the VSP tests were conducted using a 750m deep borehole penetrating the Nojima fault in Awaji Island. The borehole penetrates the fault clay band at a depth of 624m in the Hirabayashi area. The offset VSP survey, conducted by the aid of hydrophone through the naked borehole, detects many characteristic phenomena resulting from the fault fracture. Largely fractured lithofacies are found by the core observation at a depth in a range from 557 to 673m. P-waves propagate at 4.6 and 5.1km/s above and below the fractured band, respectively. The fractured band is subdivided into 2 sections, both being of low speed of 4.5 and 3.1km/s. The X1 and X2 phases resulting from the fault fracture are also observed, above and below the fractured band. The causes for these wave phases are now under investigation. 4 figs.

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

    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.

  12. Change of unit skeletons during an artificial coalification; Jinko sekitanka katei ni okeru tan`i kokkaku kozo no henka

    Sugimoto, Y.; Miki, Y.; Hayamizu, K. [National Institute of Materials and Chemical Research, Tsukuba (Japan); Okada, K. [Coal Mining Research Center, Tokyo (Japan); Suzuki, Y. [Geological Survey of Japan, Tsukuba (Japan)

    1996-10-28

    In order to obtain knowledge about formation and growth of condensed ring structure in a coalification process, discussions were given on product skeleton structure by using hydrogenation and hydrocracking of heated cellulose. In underwater heating of cellulose, reaction of dehydration has occurred at 200{degree}C or lower, that of decarbonation at 250{degree}C or higher, and that of demethanizing at 300{degree}C, resulting in production of a dark-brown coal-like substance. The substance has lower H/C value and higher O/C value than coal. As the underwater heating temperature rises, the hydrogenation reactivity of the heated substance decreases, and so does the ratio of conversion into toluene solubles. These phenomena are related to strength of cross-linking bond between unit skeleton structures. A substance heated at an underwater heating temperature of 200{degree}C turns toluene-soluble almost completely even during the hydrogenation reaction (350{degree}C for 2 hours), but the soluble product decreases at underwater heating temperatures of 250 and 300{degree}C. However, soluble product of more than 90% was obtained when hydrocracking (at 425{degree}C for one hour) was performed. The toluene-soluble product in the heated substance is only 50% when the underwater heating temperature reaches 350{degree}C even if the hydrocracking is carried out. 3 refs., 5 figs.

  13. Studies of structure change of iron sulfates and its catalysis; Ryusantetsukei shokubai no kozo henka to sono shokubai sayo

    Ogata, E.; Horie, K. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Nishijima, A. [National Institute of Materials and Chemical Research, Tsukuba (Japan)

    1996-10-28

    Since a huge amount of coal containing inorganic ash is treated for the commercial hydroliquefaction process, cheap catalysts widely distributing on the earth with large reserves are desired rather than expensive catalysts. This paper describes the effects of addition of sulfur on the catalysis of iron sulfates during the hydroconversion of 1-methylnaphthalene (1-MN). Reactions of 1-MN were conducted at the same charging amount of iron in the reaction system. Sulfur was directly added in the reaction system using ferrous sulfate (FeSO4) as precursor. Consequently, it was found that FeSO4 provides lower but similar catalytic activity to the synthetic pyrite catalyst prepared through the complex processes with the precise control. Thus, it was revealed that high performance pyrrhotite (Fe(1-x)S) catalyst can be prepared for the hydrogenation of aromatic-rings by adding solid sulfur into the reaction system using commercial reagent, FeSO4 as a precursor of the catalyst. 9 figs.

  14. Coal Liquefaction characteristics and chemical structure of product oil; Sekitan ekika hanno tokusei to seiseibutsu no kagaku kozo

    Endo, H.; Sato, M.; Chiba, T.; Hattori, H. [Hokkaido University, Sapporo (Japan). Center for Advanced Research of Energy Technology; Sasaki, M. [Hokkaido National Industrial Research Institute, Sapporo (Japan)

    1996-10-28

    Through the hydrogenolysis of Wandoan coal and Tanito Harum coal which are used for the NEDOL process, differences of liquefaction characteristics between them were found. The purpose of this study is to grasp these differences as differences of chemical structures of oil fractions. The compound type analysis was conducted for oil fractions obtained at varied reaction temperature for varied reaction time. Coal liquefaction characteristics of these coals were discussed by relating oil yields and chemical structures. For Tanito Harum coal, yields of gas and oil were considered to be lower than those for Wandoan coal, which reflected that the contents of partially hydrogenated hydroaromatics in oil fraction from the former were lower than those from the latter, and that the remarkable change of composition did not occur with the progress of the reaction. For both the coals, the remarkable changes in the average molecular weight of oil fraction were not observed with the progress of the reaction. While, the content of methane gradually increased with the progress of the reaction, which suggested that oil was gradually dealkylated. 5 figs.

  15. Report on the FY 1999 basic research on intelligent structure; 1999 nendo kozo chinoka no kiso kenkyu chosa hokokusho

    NONE

    2000-03-01

    A concept of a system is constructed in which a series of the flow from the construction of structures to the shape and control in structural phase, repair, and dismantlement is made effective and controllable by giving a function of intelligent structure to structural systems in aerospace/architecture/civil engineering fields. For it, fundamental technologies required for the systems were extracted for construction of the technology system. Further, in relation to the intelligent machinery system including the control method, manipulation, and communication of the structure under the micro-gravity environment required for this system, the basic experiment was conducted at the ground gravity-free experimental center to acquire the effective data. As to the base technology, three fields were studied of the intelligent machinery system including the behavior/control of materials and structure, intelligent robot, and communication. In the experiment on micro-gravity environment, experiments were carried out on the behavior of micro-gravity rover for small planetary probe, inter-satellite group communication, capture of trouble-satellite, development of inflatable structure, and hopping robot. The valuable data were obtained. (NEDO)

  16. Structure of non-equilibrium seeded plasma excited with microwave; Micro ha reiki hiheiko seed plasma no kozo

    Miyakawa, M.; Murakami, T.; Suekane, T.; Okuno, Y.; Kabashima, S. [Tokyo Institute of Technology, Tokyo (Japan)

    1996-10-20

    Structure of non-equilibrium cesium seeded argon plasma excited with microwave power is simulated numerically. The plasmas produced at suitable microwave powers are found to consist of three regimes, that is, the region limited by charged particle loss toward the wall, the full seed ionization and the diffusion limited regions. The fully ionized seed plasma is produced within the skin-depth determined by the electrical conductivity of the plasma, and the thickness of the fully ionized seed plasma depends on the seed fractions gas pressure and microwave power. 15 refs., 6 figs.

  17. Geometrical relaxation of excitations in one-dimensional conjugated polymers; Giichijigen kyoeki kobunshi reiki jotai no shusa kozo kanwa

    Yoshizawa, M. [Tohoku University, Sendai (Japan). Faculty of Engineering

    1995-12-15

    Large ultrafast optical nonlinearities in conjugated polymers have attracted much attention because of possible applications to nonlinear optical devices. One-dimensional systems such as conjugated polymers have localized excited states with geometrical relaxation. In this study, photoexcited states in polydiacetylene has been investigated by femtosecond Raman gain spectroscopy with 300-fs resolution. A new photoinduced Raman peak with lifetime of 1.5 ps has been observed at 1200cm{sup -1} for the first time. This peak indicates acetylene-like structure of the main chain relaxes to butatriene-like structure due to the formation of self-trapped exciting with the geometrical relaxation. The formation and decay kinetics of the Raman signals is consistent with the relaxation processes of exciting observed by femtosecond absorption spectroscopy. 8 refs., 5 figs.

  18. Adaptation of topology optimization on truck-structure; Kinshitsukaho ni yoru iso saitekika shuho no truck kozo eno tekiyo

    Tachibana, H; Kojima, A; Chiba, S [Mitsubishi Motors Corp., Tokyo (Japan)

    1997-10-01

    An optimization using the homogenization method has been applied to a truck-structure on the concept design stage. A truck-structure is grouped into 3 classes (thin plate structure , thick plate structure and solid structure), then example, effectiveness and method for the application for the purpose of weight reduction , high rigidity and high eigen-frequency are introduced. 3 refs., 24 figs., 1 tab.

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

    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.

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

    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.

  1. Structural changes in deashed coals induced by heat treatment; Kanetsu shori ni yoru dakkaitan no kozo henka

    Sugano, M.; Sekita, M.; Muramatsu, Y.; Mashimo, K.; Wainai, T. [Nihon University, Tokyo (Japan). College of Science and Technology

    1996-10-28

    Change in structures of 3 kinds of coals with different coal ranks and their deashed coals was studied by heat treatment below 200{degree}C. In experiment, crushed Adaro, Taiheiyo and Huaibei coals below 200mesh and their deashed coals were used as specimens. The coal and deashed coal specimens dried in vacuum at 110{degree}C for 3 hours were filled into an autoclave, and the heat-treated coal specimens were prepared by holding them under initial nitrogen pressure of 2kg/cm{sup 2} at a fixed temperature for 30min. Extraction using pyridine as solvent, volumetric swelling using methanol or benzene as solvent, and measurement of the amount of carboxyl and phenolic hydroxyl functional groups were conducted for these coal specimens. The experimental results are as follows. Huaibei coal has developed aromatic ring structure, and its structure is hardly affected by heat treatment. The oxygen containing functional groups decrease by heat treatment over 100{degree}C in Adaro coal and 150{degree}C in Taiheiyo coal, and PS, MQ and BQ also decrease due to aggregation between molecules. 5 refs., 2 figs.

  2. Study on spontaneous potential exploration considering resistivity structures; Hiteiko kozo wo koryoshita shizen den`iho tansa

    Sato, H; Sakurai, K; Shimada, H [OYO Corp., Tokyo (Japan)

    1996-10-01

    Spontaneous potential (SP) was measured on the known traverse line of resistivity structure crossing Hanaori fault in Ohara area, Kyoto city to observe change in SP around the fault and to examine the possibility of fault position exploration. The supposed causes of generation of SP are as follows: the existence of sulfide mineral deposit including polarized minerals, underground fluid flow, and the existence of stratum including chemical compositions from hot springs. The SP method estimates underground structures based on measured surface potential distributions using DC component under anomaly of SP. FEM modeling clarified that a fault fracture zone is one of the causes of generation of SP, by considering SP measurement and resistivity structure strongly affecting observed SP. Consequently, combination of SP measurement with resistivity structure exploration allows a reliable fault estimation method. Under the assumption that anomaly of SP is caused by polarization around fault, the horizontal dipole model based on polarization of current source dipole along fault can well explain the measured data. 2 refs., 6 figs.

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

    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.

  4. Resistivity structures imaging using time-domain electromagnetic data; TDEM ho ni yoru chika hiteiko kozo no imaging

    Noguchi, K [Waseda University, Tokyo (Japan). School of Science and Engineering; Endo, M [Waseda University, Tokyo (Japan)

    1996-10-01

    The kernel function for transient vertical magnetic dipole was defined for semi-infinite uniform medium, and the 1-D imaging algorithm by TDEM (time-domain electromagnetic) method was developed for underground resistivity structure. Electromagnetic migration method directly images sectional resistivity profiles from the data observed by frequency-domain MT method, and determines underground resistivity profiles by integral equation of MT field using the concept of return travel time in reflection seismic exploration. The method reported in this paper is also one of the EM migration methods. The imaging algorithm of 2-D resistivity structure was developed by correcting 1-D imaging in consideration of the effect of 2-D anomaly on 1-D imaging (the resistivity of anomaly can be obtained from the resistivity contrast between anomaly and medium). The conventional methods require enormous forward computation, while this method can obtain underground resistivity structure in extremely short computation time, resulting in superior practicability. 12 refs., 7 figs.

  5. Deep sedimentary structure model beneath the Osaka plain; Osaka heiya ni okeru shinbu chika kozo no model ka

    Miyakoshi, K; Kagawa, T; Echigo, T [Osaka Soil Test, Osaka (Japan)

    1997-05-27

    Restructuring was carried out on a sedimentary basin structure model of the Osaka plain including Osaka Bay by using newly obtained underground structural data. After the Hygoken-nanbu Earthquake of 1995, a large number of underground structure investigations have been performed in Osaka Bay and urban areas of Kobe and Osaka. However, very few surveys have been done in areas peripheral to Osaka Prefecture, such as the Ikoma area. Therefore, an attempt has been made to increase the number of measuring points to acquire underground structural data of these areas. Estimation of basic rock depths has utilized the dominant cycles in H/V spectra obtained from micro vibration survey, and good correlation of the base rock depths derived by a refraction exploration and a deep-bed boring investigation. With regard to bed division and P- and S- wave velocities in sedimentary beds in the Osaka sedimentary basin, an underground structure model was prepared, which was divided into four beds according to the refraction exploration and the micro vibration investigation. Data obtained by using this model agreed well with depth data acquired from physical exploration and other types of investigations. However, no good agreement was recognized in the data for such areas where the basic depth changes abruptly as the Rokko fault and the Osaka bay fault. 6 refs., 8 figs., 2 tabs.

  6. Structure of poly (. beta. -alanine) polymerized in the solid state. Koso jugo shita. beta. -alanine no kozo

    Sakabe, Hiroshi; Nakamura, Hiroyoshi; Kimura, Hirokazu; Konishi, Takashi [Kyoto Inst. of Tech., Kyoto (Japan). Faculty of Textile Science

    1989-12-05

    The structure of poly({beta}-alanine) polymerized in the solid state was studied. This polymerization was carried out on a single crystal of {beta}-alanine at 170 centigrade for 40 h in an evacuated tube. The crystal structure of the polymer was assigned to I-type crystal of Nylon 3. The polymer chains were oriented vertical to the crystal side and different to monomer crystal orientation. This may be caused by the molecular layer slipping along the cleavage plane of monomer crystal. A scanning electron microscope(SEM) showed the band structure of hundreds nm width of same orientation, but X ray showed only unoriented rings, so that they are estimated to be the structure of fine fibril like assembly or necklace like continuous chain structure of grains. Near the surface, whiskers which were thought to be oligomer of low degree of polymerization, were observed. The SEM of end view of the etched surface did not show the laminated structure but showed the network structure of about 1 mu-m which is thought to be fibril precursor. 12 refs., 10 figs.

  7. Evaluation on lifetime risk in reinforced concrete structure; RC kozo no lifetime risk no hyoka ni kansuru kisoteki kenkyu

    Suzuki, M. [Public Works Research Institute, Tsukuba (Japan); Adachi, H. [Taisei Corp., Tokyo (Japan); Akakura, Y. [Ministry of Transport, Tokyo (Japan); Ibayashi, K.; Ozaka, Y. [Tohoku Gakuin Univ., Sendai (Japan)

    1996-02-15

    To evaluate the risk during longevity of reinforced concrete structure subjected to earthquake motions, called lifetime risk, damage and safety were estimated by means of the earthquake risk analysis and earthquake response analysis. For the earthquake risk analysis, historical earthquake data with relatively low accuracy were efficiently taken into account, to determine the annual mean generation probability against the earthquake motion strength in ten main cities. A new damage index with load hysteresis was defined as an anti-earthquake evaluation index where accumulative damage is taken into consideration. Assuming that the damage transits from `certain state` to `certain state` every time the earthquake motion generates at the noticeable place, damage transition matrix expressing transition probability was calculated by using the results of earthquake risk analysis and the accumulative damage index. The lifetime risk was calculated from the damage transition matrix and the earthquake motion generation probability, to evaluate the safety. 21 refs., 10 figs., 8 tabs.

  8. Georesistivity structure in the central part of North-Eastern Japan Arc; Tohoku chiho chubu chiiki no denki dendodo kozo

    Fujinawa, Y. [National Research Institute for Disaster Prevention, Tsukuba (Japan); Kawakami, N. [GERD Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Ueshima, M. [The University of Tokyo, Tokyo (Japan). Earthquake Research Institute; Honkura, Y. [Tokyo Institute of Technology, Tokyo (Japan)

    1998-03-13

    MT measurement of transects was made in the central part of North-Eastern Japan Arc to clarify tectonics of subduction zones. 1-D, 2-D and 3-D resistivity structures are observed in surface layers, and zones shallower and deeper than a Conrad surface, respectively. A main structure direction is S-N or NNE-SSW. Ishinomaki-Chokai tectonic line and low- resistivity zones due to Quaternary volcanos (Naruko, Onikobe) exist in a backbone range region. Resistivity is 100{Omega}{center_dot}m or less by Bostick Inversion except Mesozoic and Palaeozoic layers in the southern Kitakami mountainous region, resulting in a good agreement with previous results in a north transect. Resistivity is several {Omega}{center_dot}m and depth is several km around Shinjo basin and in surface layers of Kitakami River region. The backbone range region shows complex resistivity structures because of volcanic activity and wide-area hot water activity. High-resistivity layers correspond to stable Mesozoic and Palaeozoic land layers. Seismic velocity increases in the low-resistivity zone. Earthquake generally occurs at the boundary between resistivity structures. 68 refs., 9 figs., 2 tabs.

  9. Deep geological strucure of a volcano verified by seismic wave. Jishinha de mita kazan no shinbu kozo

    Hasegawa, A. (Tohoku University, Sendai (Japan). Faculty of Science)

    1991-09-01

    Three dimensional structure of seismic wave velocity for the crest and upper mantle under the North East Japan is determined by the seismic tomography which is prepared by the natural earthquakes confirmed by the observation network for micro earthquakes, indicating that the low velocity region exists just under the corresponding volcano to the upper mantle. Further, the following contents can be verified: Any micro earthquakes which are verified by the above observation network and occur at the depth of 25-40km show the lower generation rate less than 1% and the low dominant frequency compared with the conventional inland earthquake(lower limit of depth is 15km) in the same region and occur around volcanos. The existence of the remarkable reflection surface for S wave which is found at the depth of 10-20km seems to be caused by the melting mass. The above mentioned low velocity region is estimated to correspond to the lifting region of high temperature magma, micro earthquakes of low frequency to the magma activity around that magma and the reflection surface for S wave to the part of the magma. 8 refs., 4 figs.

  10. Study on the structural characteristics of extradosed concrete bridges; Ekusutoradozudo kyo no kozo tokusei ni kansuru ichikosatsu

    Oka, Y. [Japan Highway Public Corp., Tokyo (Japan); Kasuga, A. [Sumitomo Construction Co. Ltd., Tokyo (Japan); Yamazaki, J. [Nihon Univ., Tokyo (Japan). Coll. of Science and Engineering

    1997-03-31

    Parameters are analyzed to provide data for deciding, in the planning and designing stages, whether a cable stayed bridge or an extradosed bridge should be adopted. Comparative investigation of the vibration properties of both types of bridges is also referred to. The result of the study on the structural properties of the cable stayed road bridge and the extradosed road bridge is introduced. Based on the concept of the extradosed bridge, designers are now able to select without restraint the after load sharing rate of the diagonal members. Parameter analysis of a diagonal member reinforced 3-span continuous beam is performed. By introducing indices showing the load sharing rate of the diagonal member, the cable stayed bridge can be distinguished logically from the extradosed bridge in designing. It is found important that the height of the main tower is set to approximately 10% the length of the center span for the construction of the extradosed bridge. The vibration properties of the cable stayed bridge and the extradosed bridge of the same scale are compared. 7 refs., 18 figs., 6 tabs.

  11. Consideration on the dynamic behavior and the structural design of large scale floating structure. 2nd Report. Stability of elastic structure and design of elastic response; Choogata futai no kozo kyodo oyobi kozo sekkei ni kansuru kosatsu. 2. Dansei henkei wo koryoshita fukugensei oyobi kozo oto no sekkei

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

    1996-12-31

    A policy of improving a very large floating body was planned based on its dynamic characteristics, and a proposal was made thereon. Furthermore, discussions were given on stability that considers effect of elastic deformation required when a structure is mounted on a floating body. With respect to a structural design of a very large floating body in which elastic response is governing, and upon modeling the very large floating body into an aeolotropic plate on an elastic supporting floor, it was shown that the existing range of natural vibration speed in the elastic response is in higher range than the natural vibration speed of heave. It was also indicated that the peak height of response to waves in resonance is inversely proportional to wave frequency, and furthermore, degree of flowing in of vibration energy during the resonance is determined by an inner product of spatial vibration patterns of wave force and the excited mode shape. A proposal was made on a floating body improved of excessive response in the floating body edges by changing the characteristics of the floating body edges. In addition, discussions were given on stability that considers elastic deformation of a floating body that becomes necessary when a structure, such as a building, is built on a very large floating body. 9 refs., 9 figs., 3 tabs.

  12. Consideration on the dynamic behavior and the structural design of large scale floating structure. 2nd Report. Stability of elastic structure and design of elastic response; Choogata futai no kozo kyodo oyobi kozo sekkei ni kansuru kosatsu. 2. Dansei henkei wo koryoshita fukugensei oyobi kozo oto no sekkei

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

    1997-12-31

    A policy of improving a very large floating body was planned based on its dynamic characteristics, and a proposal was made thereon. Furthermore, discussions were given on stability that considers effect of elastic deformation required when a structure is mounted on a floating body. With respect to a structural design of a very large floating body in which elastic response is governing, and upon modeling the very large floating body into an aeolotropic plate on an elastic supporting floor, it was shown that the existing range of natural vibration speed in the elastic response is in higher range than the natural vibration speed of heave. It was also indicated that the peak height of response to waves in resonance is inversely proportional to wave frequency, and furthermore, degree of flowing in of vibration energy during the resonance is determined by an inner product of spatial vibration patterns of wave force and the excited mode shape. A proposal was made on a floating body improved of excessive response in the floating body edges by changing the characteristics of the floating body edges. In addition, discussions were given on stability that considers elastic deformation of a floating body that becomes necessary when a structure, such as a building, is built on a very large floating body. 9 refs., 9 figs., 3 tabs.

  13. Basic tests of a rotation seismograph; Kaiten jishinkei no kaihatsu

    Matsubayashi, H; Kawamura, S; Watanabe, F; Hirai, Y; Kasahara, K [Nippon Geophysical Prospecting Co. Ltd., Tokyo (Japan)

    1996-05-01

    For the purpose of developing a rotational seismograph capable of measuring the rotational component of seismic waves, vibratory gyroscopes were installed in the ground for the measurement of vibration of the ground, and the measurements were compared with the values obtained from tests using conventional velocity type seismographs. In the experiment, the plank was hammered on the east side and west side. The seismographs were arranged in two ways: one wherein they were installed at 7 spots at intervals of 1m toward the south beginning at a position 3m south of the vibration source with their rotation axes oriented vertical, with velocity type seismographs provided at the same spots; and the other wherein three rotational seismographs were installed 3m south of the vibration source with their rotation axes respectively oriented vertical, in the direction of N-S, and in the direction of E-W, with a velocity type seismograph provided at the same spot. It was found as the result that the rotational seismograph has a flat band on the lower frequency side and that it may be applied to elastic wave observation across a wide band. Accordingly, it is expected that it will be applied to exploration that uses the SH wave, to structural assessment that uses the Love wave, and to collecting knowledge about the features of natural earthquakes. 2 refs., 8 figs.

  14. Development of aluminium pleasure boats; Arumisei pleasure boat no kaihatsu

    Tsuzuki, A. [Toyota Motor Corp., Aichi (Japan)

    1999-10-01

    In February 1997, Toyota entered the marine business, a new business sector for it, by marketing a 28-foot cabin cruiser PONAM-28, developed by utilizing its automotive technologies. When Toyota began studying the possibility of entering the marine vessel industry in 1990, its main focus was on the environment. Therefore, in terms of materials procurement for the designs, Toyota refrained from using thermosetting resins, as much as possible. Instead, the decision was made to use an easily recyclable aluminum alloy for the hull which amounts to one-fourth of the vessel's total weight. (author)

  15. Development of artificial soft rock. Jinko nangan zairyo no kaihatsu

    Kishi, K.; Nishioka, T. (The Tokyo Electric Power Co. Inc., Tokyo (Japan)); Nojiri, Y.; Kurihara, H.; Fukazawa, E. (Kajima Corp., Tokyo (Japan))

    1990-09-15

    When a part of the ground is replaced with artificial materials in the construction of important structures on soft rock foundations, it is desirable for the artificial materials to have the rigidity equivalent to that of the surrounding ground and to be stable in the long term. The article reports a success in the development and utilization of artificial soft rocks satisfying the above conditions by using a raw material produced locally at the construction site. The soft rock aimed at was mudstone belonging to the Neocene period, and the artificial material of soil-mortal system is selected as the equivalent having the same physical properties. Improvements in selection of solidification agents and cohesive soil were especially contrived: taht is, a new material for solidification was developed by mixing blast-furnace cement and gypsum; and the mudstone on the site was used as the cohesive soil by slurrying it to adjust its grain size to homogeneous composition. The artificial soft rock resulting from the above contrivance showed excellent flow, self-leveling, and filling properties at the stage of fresh mortar, and the physical properties after hardning was very similar to those of the natural ground. The long-term stability was also confirmed by the tests on hydration reaction and environmental factors. 2 figs., 1 tab.

  16. Development of field navigation system; Field navigation system no kaihatsu

    Ibara, S; Minode, M; Nishioka, K [Daihatsu Motor Co. Ltd., Osaka (Japan)

    1995-04-20

    This paper describes the following matters on a field navigation system developed for the purpose of covering a field of several kilometer square. This system consists of a center system and a vehicle system, and the center system comprises a map information computer and a communication data controlling computer; since the accuracy for a vehicle position detected by a GPS is not sufficient, an attempt of increasing the accuracy of vehicle position detection is made by means of a hybrid system; the hybrid system uses a satellite navigation method of differential system in which the error components in the GPS are transmitted from the center, and also uses a self-contained navigation method which performs an auxiliary function when the accuracy in the GPS has dropped; corrected GPS values, emergency messages to all of the vehicles and data of each vehicle position are communicated by wireless transmission in two ways between the center and vehicles; and accommodation of the map data adopted a system that can respond quickly to any change in roads and facilities. 3 refs., 13 figs., 1 tab.

  17. Development of new catalytic materials; Shinshokubai zairyo no kaihatsu doko

    Tatsumi, Takashi [Yokohama National Univ., Kanagawa (Japan)

    1999-04-05

    The catalyst fulfils large role for the solution of environmental problem, resources problem, and energy problem. It is popular to carry out the research, which intends to realize the new process of which the environmental loading is low by the new catalyst. And, the development of catalyst material, which demonstrates the function under the ultimate condition like the environmental catalyst, is required. The interest has leaned in also using the solid catalyst for the synthesis of fine chemical such as intermediate and perfume of the medical supply synthesis. In this paper, the following are described as a new catalyst material: Zeolite and development trend of meso porous molecular sieve explosively studied recently. The application to the reaction is also simply touched. (NEDO)

  18. Development of mechanical brake assist; Mechanical brake assist no kaihatsu

    Konishi, M; Shingyoji, S; Nakamura, I; Tagawa, T; Saito, Y; Ishihara, T; Kobayashi, S; Yoshida, M [Nissan Motor Co. Ltd., Tokyo (Japan)

    1997-10-01

    We have recognized that there are drivers who cannot apply strong brake pedal force , in spite of the necessity of hard braking in emergencies. We have developed a `mechanical brake assist system` which assists drivers appropriately, according to the drivers` characteristics based on studying the characteristic`s of conditions of drivers applying the brake pedal force in emergency conditions. 2 refs., 7 figs., 1 tab.

  19. Developments of space station; Uchu station no kaihatsu

    Hashimoto, H. [National Space Development Agency of Japan, Tokyo (Japan)

    1996-03-05

    This paper introduces the Japanese experiment module (JEM) in developing a space station. The JEM consists of systems of a pressurizing section, an exposure section, a pressurizing portion of a supply section, a manipulator and an exposure portion of the supply section. The pressurizing section circulates and controls air so that crews can perform experiments under pressurized environment. The exposure section is a part in which experiments are carried out under exposure environment. The supply section runs between a station and the ground, with required devices loaded on it. The manipulator performs attaching a payload for the exposure section and replaces experimental samples. The JEM undergoes a schedule of fabricating an engineering model, testing for a certification a prototype flight model, and putting the model on a flight. The pressurizing section, exposure section and manipulator are at the stage of system tests. Surveillance of the JEM and control of the experiments are carried out at the Tsukuba Space Center. The Center is composed of a space experiment building, a zero-gravity environment testing building, an astronaut training building, a space station operating building, and a space station testing building. 7 figs., 2 tabs.

  20. Light beam control by refractive index change in a modified purple membrane; Hen`i shimaku no kussetsuritsu henka wo riyoshita hikari bimu seigyo

    Takei, H.; Shimizu, N. [Hitachi Ltd., Tokyo (Japan)

    1996-04-01

    A purple membrane extracted from bacterial halobacterium salinarium is a membrane prepared by two-dimensionally crystallizing bacteriorhodopsin (bR) which is a photo-sensitive protein. When retinal chromophore in the bR absorbs photons, isomerization occurs, so that light cycle of bR comprising a light intermediate of different absorption spectrum occurs. Since this purple membrane has a high stability and a high repetition durability, a study of the application of the same to a rewritable holographic recording medium has been made in recent years. This paper describes an example in which the refractive index variation of a purple membrane the optical characteristics of which varies due to variation is applied to light beam control. The paper introduces a Fabry-Perot resonator as an optical element capable of carrying out light control by utilizing refractive index variation. The paper further describes the possibility of materialization of an optical logic comprising a combination of light-irradiation refractive index variation and a Fabry-Perot resonator and having nonlinear input/output characteristics such as the bistablity owing to the feedback effect in the resonator. 7 refs., 3 figs.

  1. FY1995 distributed control of man-machine cooperative multi agent systems; 1995 nendo ningen kyochogata multi agent kikai system no jiritsu seigyo

    NONE

    1997-03-01

    In the near future, distributed autonomous systems will be practical in many situations, e.g., interactive production systems, hazardous environments, nursing homes, and individual houses. The agents which consist of the distributed system must not give damages to human being and should be working economically. In this project man-machine cooperative multi agent systems are studied in many kind of respects, and basic design technology, basic control technique are developed by establishing fundamental theories and by constructing experimental systems. In this project theoretical and experimental studies are conducted in the following sub-projects: (1) Distributed cooperative control in multi agent type actuation systems (2) Control of non-holonomic systems (3) Man-machine Cooperative systems (4) Robot systems learning human skills (5) Robust force control of constrained systems In each sub-project cooperative nature between machine agent systems and human being, interference between artificial multi agents and environment and new function emergence in coordination of the multi agents and the environment, robust force control against for the environments, control methods for non-holonomic systems, robot systems which can mimic and learn human skills were studied. In each sub-project, some problems were hi-lighted and solutions for the problems have been given based on construction of experimental systems. (NEDO)

  2. Starting and stopping control on power conditioner in photovoltaic power system; Taiyoko hatsuden system ni okeru power conditioner no kido teishi seigyo ni tsuite

    Hirose, M.; Ishihara, Y.; Todaka, T.; Harada, K. [Doshisha University, Kyoto (Japan); Oshiro, H.; Nakamura, H. [Japan Quality Assurance Organization, Tokyo (Japan)

    1997-11-25

    Studies are made about the control of the power conditioner over the maximum power point tracking (MPPT) function in a photovoltaic power generation system. The analysis is conducted by means of computer simulation into the effect of a start/stop function added to the control of MPPT and the effect on the generation of power of the setting of parameters in the start/stop function. The reduction in output power due to difference between the actual operation point and the optimum operation point is evaluated by use of a load matching correction factor. In this simulation, it is assumed that the solar cell array consists of 13 rows in 5 parallel columns, is capable of a normal output of 3.149kW, has a panel tilted at 30 degrees, and faces due south. The power conditioner is assumed to be a system rated at 3kVA, equipped with system interconnection and back flow features. As a result, it is learned that the stop voltage should be set at 180V or lower and the steady voltage near 185.5V for a good result and that there is not much need after all for the start/stop technique. 2 refs., 8 figs., 2 tabs.

  3. On-line temperature control of fluidized bed incinerator using fuzzy algorithm; Fuzzu seigyo donyu ni yoru ryudosogata shokyakuro unten no jidoka

    Okayasu, S.; Kuratani, T.; Imai, H. [Ajinomoto Co. Inc., Tokyo (Japan)

    1995-03-15

    Automatic control of incinerators for their stable operation has been desired for the preservation of the environment in the factory. An on-line fuzzy control system has been successfully introduced for temperature control of the fluidized bed of incinerator for industrial wastes. In this case, manual control can be applied to the plant instead of a PID control system, because of the complexity of the waste materials and the large delay in detection of the temperature change in the fluidized bed sand. On the basis of analyzing the dynamic performance of the process and the know-how of skilled operators, membership functions and fuzzy control rules are selected, then determined carefully for the system. Introduction of the system resulted in almost the same performance as manual control. Subsequently the operators are freed from manual operation in the control room for an hour. 6 refs., 5 figs., 4 tabs.

  4. Application of photo-excitation reaction on titanium oxide thin film for control of wettability; Sanka chitann hakumakujo no hikari reiki hanno no nuresei seigyo eno oyo

    Watanabe, T.; Nakajima, A.; Hashimoto, K. [The Univ. of Tokyo, Tokyo (Japan); Takada, Y. [Kyushu Univ., Fukuoka (Japan)

    2000-03-31

    It is clarified that the photo-excitation hydrophilic reaction increasing wettability remarkably is induced by changing surface structure of titanium oxide radiated light. There are already many examples being in practical use of coating products applied hydrophilic reaction of titanium oxide surface such as drip-proof side millers for automobiles, self-cleaning building materials, and the like. When surface of titanium oxide having high activities for oxidisation and decomposition is coated organic materials and radiated light, wettability of surface changes as organic materials are decomposed. If it is possible to change wettability shaping pattern drastically by radiating light, the possibility of application for printing materials will be developed. After increasing contact angle by coating water and oil repellent on the titanium oxide thin film, images can be shaped by radiating light into pattern for changing surface of titanium oxide to be ultra hydrophilicity as decomposition of repellent. At that time, contact angle is 150 degree in water, 80 degree in oil, for not radiated aria, and is 0 degree in water and oil for radiated aria. Application for control technology of wettability keeps possibility of broader development to itself, not staying ability of self-cleaning and drip-proof. (NEDO)

  5. Control of population of excited nitrogen molecules by mixing hydrogen in low pressure discharge; Chisso jun`antei reiki bunshi mitsudo no quenching ni yoru seigyo no kento

    Uematsu, K.; Yumoto, M.; Sakai, T. [Musashi Institute of Technology, Tokyo (Japan)

    1998-06-01

    The authors have studied on surface treatment of PTFE by a low pressure discharge. It is deduced that excited nitrogen molecules contribute to introduce polar components on the surface. To confirm the speculation, we tried to change population of metastable nitrogen N2 (A{sup 3}{Sigma}u{sup +}) by quenching precursor N2 (B{sup 3}{pi}g), with hydrogen molecule. The decrease of relaxation time which indicates a change of excited molecule and measured by emission spectroscopy using a time after glow method was obtained. As a result, the relaxation times of N2 (B{sup 3}{pi}g) and N2 (A{sup 3}{Sigma}u{sup +}) decreased to 55% and 20% respectively, when mixing ratio of hydrogen was 3%. It was also deduced that hydrogen atom may take a part in a quenching process of N2 (A{sup 3}{Sigma}u{sup +}). 14 refs., 11 figs., 1 tab.

  6. FY1995 research on nonlinear optical devices using super-lattice semiconductors; 1995 nendo chokoshi active hisenkei soshi wo mochiita chokosoku hikari seigyo gijutsu no kenkyu

    NONE

    1997-03-01

    The purpose is to develop technologies on efficient generation and control of femtosecond optical pulses using a novel semiconductor optical devices. We studied a modelocked Cr:forsterite laser pumped by a diode pumped Nd:YVO4 laser. Both Kerr lens mode locking and semi-conductor saturable absorber initiated mode locking have been achieved. The minimum pulse width for pure Kerr lens mode locking is 26.4 fs, while for the semiconductor saturable absorber initiated mode locking, the pulse width is 36 fs. The latter is very resistant to the environment perturbations. We also present the measured dispersion data for the forsterite crystal and the SESAM, and discuss the dispersion compensation technique. (NEDO)

  7. Study on heavy duty truck stability control by braking force control; Seidoryoku seigyo ni yoru truck no sharyo kyodo anteika ni taisuru ichikosatsu

    Matsuda, K; Shinjo, H; Harada, M; Ohata, K; Sakata, K [Mitsubishi Motors Corp., Tokyo (Japan)

    1997-10-01

    Now a days we are discussing about the vehicle stability control system which freely controls the braking force of each wheel to apply the yaw t and decelerate the vehicle. The system drastically improve the vehicle cornering performance and stabilize the vehicle behavior in its critical area. This paper discusses a point to notice in case of applying this technique for heavy duty trucks, and describes the possibility of the stabilization for vehicle cornering behavior about heavy duty truck. 3 refs., 10 figs., 2 tabs.

  8. Optical axis control system as unification of reflex and pursuit eye movements; Zentei dogan hansha, shikisei hansha, katsudosei undo wo togoshita gankyu undo seigyo model

    Wakamatsu, H.; Zhang, X. [Tokyo Medical and Dental College, Tokyo (Japan)

    1997-10-20

    In order to realize basic optic axis movements, by which a moving target can be caught in a central pit of retina, an oculomotor mathematical model is developed for horizontal movements of a head and an eyeball. An image signal from retina and an acceleration signal from semicircular ducts are used as control inputs to muscles of eyeball to realize appropriate eye movements taking into account the displacement of a head rotation. Reflex eye movements and smooth pursuit as autokinesis are discussed with consideration of their control performances which lead to automatic cooperation of an appropriate control system according to the movement types of an target. The optic axis is controlled by a unified eye movement system which is synthesized on the basis of various biological facts. It has a flexible dynamics characterized by variable parameters which imply anatomical structure and physiological mechanism given by the change of synaptic conductivities in flocculus. The basic physiological facts are presented under the corresponding anatomical and physiological conditions given by appropriate changes of mathematical description of the proposed model. 14 refs., 16 figs.

  9. Presentation of electric motor and motor control technology for electric vehicles and hybrid vehicles; Denki jidosha hybrid sha yo motor oyobi motor seigyo gijutsu no shokai

    Matsudaira, N.; Masakik, R.; Tajima, F. [Hitachi, Ltd., Tokyo (Japan)

    1999-02-01

    The authors have developed a motor drive system for electric vehicles and hybrid vehicles. This system consists of a permanent magnet type synchronous motor, an inverter using insulated gate bipolar transistors (IGBTs) and a controller based on a single-chip microcomputer. To achieve a compact and light weight synchronous motor, an internal permanent magnet type rotor structure was designed. This paper presents motor control technology for electric vehicles, such as an optimization method of field weakening control and a new current control method. (author)

  10. Optimal control of aerobic bacteria fermentaion by dynamic programming method. Doteki keikakuho ni yoru kokisei saikin hakko process no saiteki seigyo

    Kidoushi, H; Murayama, S; Shiomi, S [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan); Haneda, K; Yamada, Y [Asahi Chemical Industry Co. Ltd., Tokyo (Japan)

    1991-05-10

    A dynamic programing method was applied for maximizing a production yield in controlling the process of aerobic bacteria fermentation. An optimal control was carried out by air flow rate under a sufficient sugar supply condition, using the bacteria amount as a state variable and the air flow rate as an operation variable, under conditions where the sugar consuming rate is not a limiting factor. The growth and production were modelled, and the relationship of both the specific growth rate and the specific production rate to the specific respiration rate was was expressed as functional tables. A simulation was carried out, which provided an optimum air flow pattern. This relationship between the bacteria amount and the optimum air flow rate was mapped to perform a map control. Conditions other than the air flow pattern were made to agree with the previous empirical cultivation method, and experiments were conducted using a cultivation tank of 0.03 m {sup 3}. A yield increase of 13.6% over the conventional method was attained, thus the reasonability of the modelling was verified. It was found that there are portions where the width of the optimum air flow control is wide and narrow, and it is possible to reduce the number of maps if this this is taken into account. 4 refs., 8 figs., 2 tabs.

  11. Fiscal 1998 research report on micro-particle control process technology; 1998 nendo micro ryushi seigyo process gijutsu no chosa kenkyu

    NONE

    1999-03-01

    For establishment of process technology realizing control of forms and structures of micro-particles on practical equipment, research was made on related elementary technologies and current technologies. The research was promoted aiming at synthesis of micro-particles from nanometer to micrometer in size and their application to functional materials, establishment of the methodology for correlating the microstructure and function of micro-particle materials with fabrication process, and establishment of a common-base technology system in chemical technology aiming at fabrication of functional materials. As for the common- base technology, to clarify its importance, research was made on the fabrication method and dispersion mechanism of nano- particles, particle arraying method by coating, device fabrication technique by coating, and one-step synthesis and coating of nano-particles. As for the project research, synthesis of monodispersed nano-particles at large production rates, fabrication of thin films and bulk materials by arraying and coating. (NEDO)

  12. Study on the detonation properties of explosives in bore hole and precise controlled blasting; Happa konai no bakuyaku no bakugosei to seimitsu seigyo happa ni kansuru kenkyu

    NONE

    1997-10-08

    In order to perform efficient and safe controlled blasting, attaining sufficient detonation from explosive is important. Therefore, a mechanism of detonation in a bore hole was studied. Two detonation phenomenon measuring methods were established: one is a continuous detonation speed measuring method by using a resistance wire probe, and another is a detonation mark observing and evaluating method using aluminum and metallic lead plates. Assuming delay blastings in multiple bore holes used practically, discussions were given on detonation phenomena of explosives under pressurized condition. Under dynamic pressure condition, size of the pressurization and delay time of the detonations affected largely the detonation. Discussions were given on blasting effect and safety according to difference in forward initiation and reverse initiation. The reverse initiation method was verified to have excellent blasting effect, maintain good face conditions, and assure safety against inflammable gases. A precision initiation method was developed, which can control the initiation time of a detonator more precisely. The initiation accuracy is more than 1000 times greater than the ordinary instantaneously detonating electric detonator. The precision control of the initiation time proved to develop greater crack propagation. Vibration and stone scattering were also controlled. This paper also describes application of the method to a rock elastic wave exploration technique. 136 refs., 99 figs., 13 tabs.

  13. Method of estimating time management of safety control of combustion. Nensho anzen seigyo no tame no jikan kanri No hyoka hoho

    Moroboshi, M. (Yamatake-Honeywell Co. Ltd., Tokyo (Japan))

    1993-12-01

    The results of investigating time management (permissible value of ignition time and prepurge time) for safety control of combustion relating to a combustor is reported. It is shown that the heating value of hydrocarbon-based fuel is determined by molecular weight irrespective of molecular structure and constant (11200kcal/kg) per unit weight; the heating value of mixture gas of theoretical mixture ratio is constant (1000kcal/m[sup 3]) indifferently of the kind of fuel; and that the product of the heating value of a fuel and the lower limit of its explosion limit is approximately constant (400-600kcal/m[sup 3]). Succeedingly it is shown based on these values that allowable ignition time is determined by the combustion chamber load (ratio of the maximum amount, 10[sup 4]kcal/h, of combustion to the volume of combustion chamber); the effect of dilution by exhaust lengthens it by only about 50%; and that the conventional criterion that the frequency of ventilation of prepurge should be 4-5 or that the minimum time of prepurge should be 30 seconds is appropriate. 6 refs., 4 figs., 1 tab.

  14. ISC feedforward control of gasoline engine. Adaptive system using neural network; Jidoshayo gasoline engine no ISC feedforward seigyo. Neural network wo mochiita tekioka

    Kinugawa, N; Morita, S; Takiyama, T [Osaka City University, Osaka (Japan)

    1997-10-01

    For fuel economy and a good driver`s feeling, it is necessary for idle-speed to keep at a constant low speed. But keeping low speed has danger of engine stall when the engine torque is disturbed by the alternator, and so on. In this paper, adaptive feedforward idle-speed control system against electrical loads was investigated. This system was based on the reversed tansfer functions of the object system, and a neural network was used to adapt this system for aging. Then, this neural network was also used for creating feedforward table map. Good experimental results were obtained. 2 refs., 11 figs.

  15. Crystal from and aggregate controls of hydroxyapatites and related phosphates; Suisan apataito oyobi kanren rinsan enrui no kessho oyobi kessho shugotai no keitai seigyo

    Matsuda, N.; Wakana, Y.; Kaji, H. [Taihei Chemical Industrial Co. Ltd., Osaka (Japan)

    1995-09-01

    Potassium phosphates are compounds with the composition of Ca/P=0.5-2.0, and regarding potassium phosphates of apatitic structure, research has been made in the fields of biomaterial, base material for tooth paste, base material for cosmetics, etc. since 1980`s. In particular, hydroxyapatites (HAP) and tricalcium phosphates (TCP) are now sold as artificial bones, artificial tooth roots, etc.. In this article, the synthetic methods and morphological controls of HAP, TCP, tetracalcium phosphates (TTCP) and fluorine apatites (FAP), and the properties of products of 4 kinds of hydroxyapatites (HAP-100, HAP-200, HAP-300, and spherical HAP), 2 kinds of tricalcium phosphates ({beta}-TCP-100 and {alpha}-TCP), TTCP and FAP are introduced. The particle morphology of the above chemical compounds depend on the respective synthetic methods and stable production of calcium phosphates require technology as well as facilities of high degree. 26 refs., 17 figs., 2 tabs.

  16. Leading research report for fiscal 1999. Survey and research on microparticle control process technology; 1999 nendo micro ryushi seigyo process gijutsu no chosa kenkyu hokokusho

    NONE

    2000-03-01

    For the functional upgrading of electronic equipment which will support the computerized society in the 21st century, a substance itself is required to exhibit novel functions or to behave better on a reduced amount. Dependence on the synthesis of new materials alone has its own limit, but a method of reducing the substances conventionally known for their safety into particles of the nanometer scale will be one of the solutions. Micro-science and micro-technology are in progress in Japan and abroad, which mainly deal with particles 10nm-100nm in size. To make better use of the functions of substances, there should be single nanoparticles 1nm-10nm in size. Such particles are easy to coagulate, however, and it is difficult to keep them in their nanometer-scale single state free of coagulation. If Japan succeeds in the development of 1nm-10nm size nanoparticle structurizing technology and manufacturing technology utilizing this technology, Japan will have a clear advantage over other countries in the world in the domain of nanoparticle engineering. The survey and research described in this report aim to review the trends of technologies for nanoparticle composition and functionalization and to clarify the course that Japan is to follow in the development of technologies concerned. (NEDO)

  17. Resistance test of high-speed ship by means of attitude control method. Part 2; Shisei seigyo hoshiki ni yoru kosokutei no teiko shiken. 2

    Hayashida, S [Nagasaki Institute of Applied Science, Nagasaki (Japan)

    1996-04-10

    The previous paper has proposed a resistance test method by controlling the attitude of a high-speed model ship using a personal computer without making a data base. For this method, the fluid force acting on the hull of model ship is measured, to change its attitude based on the measurement, and then, the fluid force is measured again, to change the attitude again. The traveling attitude is created by repeating this, to measure the force acting on the hull. Since the attitude is changed by calculating using the fluid force measured, various factors can be considered in the calculation process. For example, a test with an arbitrary displacement in an arbitrary position of center of gravity can be conducted in spite of actual displacement and position of center of gravity of the model ship. A test for a high-speed ship was conducted through this method, to obtain nearly satisfactory results compared with a usual resistance test. Occasionally, a lot of repetitions were required to satisfy the balancing condition of the force. In this study, the improvement of testing efficiency has been planned by modifying the analyzing program. 5 refs., 7 figs., 1 tab.

  18. Fixed position holding control for self-propulsion barges under disturbance condition; Gairanka ni okeru jiko baji no teiten hoji seigyo ni tsuite

    Kijima, K; Murata, W; Furukawa, Y [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    1996-04-10

    In direct hoisting work in suspension bridge construction, since a cable crane directly hoists a bridge beam block put on a barge on the sea, precise fixed position holding function is required for a barge. The control system was then designed on the basis of an ILQ control theory, and the effect of change in time constant as design parameter on fixed position holding performance was studied. In addition, the critical disturbance for fixed position holding control was studied through numerical simulation under various disturbance conditions using the above designed control system. As a result, in the design of control systems on the basis of an ILQ control theory, the precise control system could be designed by diminishing, in particular, the time constant for state variable around a z axis among time constants according to the extent of disturbance. The control performance was largely affected by response delay period from sensing of disturbance to beginning of control. 3 refs., 7 figs., 2 tabs.

  19. Control of pouring molten charge out of a levitation type cold crucible; Fuyogata cold crucible kara no hiyukaibutsu no chuto seigyo

    Ando, K.; Iwai, K.; Asai, S. [Nagoya University, Nagoya (Japan). Faculty of Engineering

    1994-10-25

    The cold crucible is a high-frequency induced heating melting process consisting of the cold copper crucible, coil, and charge. The levitation type crucible is of the cup type device, with the magnetic field concentrated to the vicinity of the hole in its bottom, so that the whole charge is melted and non-contact retention is achieved by the Lorentz`s force. However, when the vacuum suction method or the tilting method is used to take out or pour a charge from the crucible, defects such as contamination due to contact with the wall and heat transfer are unavoidable. This report proposes a new pouring method using the electromagnetic force, providing the logical and experimental examinations. As a result of analysis of the electromagnetic force applied on the side of the charge levitating in the crucible, it was confirmed that changing the current value through the coil varies the pouring phenomenon, depending on the followability of the levitating position, and changing the relative position of the coil to the crucible enables pouring. Thus, the pouring form measuring method was established. 9 refs., 10 figs., 1 tab.

  20. Charging and discharging time control of electric vehicles for the purpose of load leveling; Fuka heijunka wo mokuteki to suru denki jidosha no juhoden jikan seigyo hosaku

    Koyanagi, F.; Uriu, Y. [Seikei University, Tokyo (Japan)

    1998-05-01

    By ZEV regulation of the California government in 1990, not only the United States but also European countries and Japan are largely interested in replacing gasoline car by electric vehicle. Electric utilities expect that the electric vehicle improves the difference between the daytime and nighttime of a recent demand as a new market of electric power demand. There are some reports that indicates on the danger which generates the new peaks as the electric vehicles spread through the market in charging start hour. As the countermeasure for avoiding this problem, the authors propose that 1) inverse load flow by discharging of the contract private use EV is carried out as an energy shift in daytime, 2) the regional charging time shift method is introduced in the midnight charging time zone, in this paper. Therefore, the energy actual consumption of the automobile was investigated, and future demand was predicted by the mathematical consumption modeling. Especially, it is described a strategy of optimum introduction on scheme of effective electric vehicle for energy shift in section 2.2. And authors point out the necessity of market regulation for EV. 14 refs., 10 figs., 1 tab.

  1. Study on load levelling by means of the control of air conditioner operation; Kuchoki kado seigyo ni yoru fuka heijunka ni kansuru ichikosatsu

    Sasaki, H. [Hiroshima University, Hiroshima (Japan); Sadakuni, S. [Japan Broadcasting Corp., Tokyo (Japan)

    1995-04-20

    The recent drastic increase in the number of air conditioners has caused sharp and narrow peaks in summer seasons due to the inherent temperature sensitive characteristics. The authors proposed to reduce the peak power demand by controlling air conditioner operations, verifying its effectiveness on peak demand clipping. However, the former study has shortcomings in that any qualitative treatment of room temperatures or pleasant feeling was not attempted and it did not provide a way of assessing peak demand clipping in a power system as a whole. In this paper, we shall first propose a new control method that can compromise pleasant feeling and reduction in power demand. Although air conditioners are used to pursue `pleasant feeling`, this contradicts to reduce power consumption and further more the concept of `pleasant feeling` is very vague. Hence, `Weber-Fechner`s law` is utilized to quantify the pleasant feeling which is treated as fuzzy quantity. Fuzzy co-ordination method is used to compromise power demand curtailment and pleasantness. In the second part of this paper, we shall propose an approach of assessing the amount of peak load clipping when the newly proposed control strategy is adopted in a real size power system: A decrease in the required generation capacity is estimated provided that the Loss of Load Probability (LOLP) is maintained at the same level before and after the application of the new control strategy. The reduction can be regarded as a dividend of load management. 5 refs., 9 figs., 5 tabs.

  2. Application of adaptive control to windmill power system by computer simulation. Simulation ni yoru tekio seigyo no furyoku hatsuden system eno oyo

    Tomiya, T.; Matsuo, T. (Anan College of Technology, Tokushima (Japan)); Suzuki, T.; Kamano, T. (Tokushima University, Tokushima (Japan). Faculty of Engineering)

    1991-07-20

    A windmill power system using load DC generators having resistive load was subjected to discussions by simulation on development of a control method and its output characteristics to draw out the wind energy effectively even when the system characteristics are unknown. The control method used is a mountaineering method available among adaptive control methods. As a result of discussions, the effectiveness of the mountaineering method was confirmed in controlling the output either when the wind velocity is constant or variable. With respect to the control interval, which is a problem in carrying out a control, it was found that the control output stabilizes as the control interval is increased when the wind velocity is constant, but takes longer time before reaching a steady state output. When the wind velocity is variable, the increased control interval reduces the output slightly because of the load resistance change becoming coarser. It was also revealed that, on simulated natural winds, this control method can draw out more energy than by a fixed load resistance. 7 refs., 11 figs., 1 tab.

  3. Development and application of controlled source audiofrequency magneto telluric method. Results of experiment at Akagi, Sakurajima, Kuju volcanos. Shingogen seigyo chijikichidenryuho (CSAMT-ho) no kaihatsuto oyo

    Kusunoki, Ken' ichiro; Suzuki, Koichi

    1988-03-01

    Central Reserch Inst. of Electric Power Industry has carried out prospecting experiments, in various places, with magneto telluric method (MT method) which employs natural electromagnetic wave, and has confirmed the effectiveness of the method in estimation for location of faults, distribution range of rocks, and structure of geothermal sources. With increase in accuracy, the MT method, which was suitable for the approximate prospecting in wide areas, was considered to become useful for determination of detailed geothermal structures directly under prospective points of geothermal wells. For the increase in accuracy, it was necessary to increase the kind and intensity of electromagnetic wave. Consequently, we developed, first as domestically, an unit of controlled source audiofrequency magneto telluric method. The unit, generating artificially electromagnetic wave, is useful for underground structure prospecting. Fundamental experiment on transmission and reception of electromagnetic wave was carried out as preparations for full-scale prospecting, then the structures of volcanos were prospected resulting in the determination of thickness distribution of shirasu layers and heat transfer route from magma reservoirs up to ground surface. (19 figs, 11 refs)

  4. Improvement of adaptive fuzzy control for a photovoltaic/wind/diesel generating system; Taiyoko/furyoku/diesel hatsuden system no saitekigata fuzzy seigyo no kairyo

    Nagaike, H; Kenmoku, Y; Sakakibara, T [Toyohashi University of Technology, Aichi (Japan); Nakagawa, S [Maizuru National College of Technology, Kyoto (Japan); Kawamoto, T [Shizuoka University, Shizuoka (Japan).Faculty of Engineering

    1996-10-27

    The photovoltaic/wind/diesel generating system that uses a storage battery as auxiliary power has been proposed to supply power from the system to the independent area. In this system, it is important to generate no insufficient power from the viewpoint of effective energy utilization and minimize the fuel consumption of a diesel generator. Authors have proposed the adaptive fuzzy control that changes the shape of the membership function of input variables according to the parameter indicating the system state. However, a parameter was rapidly changed in the conventional method. This badly influences the control. Therefore, the way to determine the parameter that indicates the state of this system was improved. Assume that an input value is set to the average value between a certain point of time and the {Delta}t time as the method for determining a parameter. If the {Delta}t value is lower, the change in a membership function is more effective. As a result, a greater fuel reduction effect was obtained. 4 refs., 8 figs., 1 tab.

  5. On the muscle activity control in the hierarchy motor systems. Hierarchy undo system ni okeru kin no kassei seigyo ni tsuite

    Akiba, M.; Miyamoto, Y. (Osaka Industrial University, Osaka (Japan). Faculty of Engineering)

    1991-10-31

    Excitory impulses for motor systems are controlled by the psychophysiological nervous systems in the body either autonomically or voluntarily. Involved in the voluntary control loop are motor cortex, basal gangalia, thalamus, cerebellum, etc. The purpose of this study is to confirm whether it is possible to reduce or emphasize the muscle contraction voluntarily through electromyogram (EMG) feedback training. EMG can indicate the excitory impulses of motor units. In the experiments, electrodes were placed on the skin above muscles. A significant reduction effect was observed for subjects trained in relaxation of the forehead musculature through EMG feedback. Results of the experiments suggested that biofeedback training for relaxation of the forehead tensional muscle might be effective in eliminating muscle contraction, and that feedback training for activation of damaged muscles might be effective in emphasizing muscle contraction. 4 refs., 9 figs.

  6. Study of shift shock reduction of an automatic transmission using robust control; Robust seigyo wo mochiita ido hensokuki no hensoku shock teigen ni kansuru kenkyu

    Oshima, K [JATCO Corp., Shizuoka (Japan); Totsuka, H; Sanada, K; Kitagawa, A [Tokyo Institute of Technology, Tokyo (Japan)

    1997-10-01

    To effectively reduce shift shock of an Automatic Transmission, we designed a feed-back controller that manipulates the hydraulic pressure of a clutch and input torque, and also controls the turbine revolution and output torque. We used robust control theory to consider the fluctuation of hydraulic characteristics and friction elements, and verified the effect of the controller by simulation and experiment. 1 ref., 11 figs.

  7. Micropropagation of five species of Campanula growing on the territory of Botanical Garden named prof. B.M. Kozo-Polyansky of Voronezh State University

    O. A. Zemlyanukhina

    2016-01-01

    Full Text Available The development of evidence-based methods of reproduction of protected and highly decorative species that are in high demand for use in landscaping, as well as the establishment of gene pools of species and varieties of plants in actively growing collection corresponds to the main direction of the state coordination program for the development of biotechnology in the Russian Federation until 2020 «BIO 2020». The on-standing research developed and optimized the conditions for obtaining actively proliferating cultures of 5 disappearing species; Campanula rotundifolia L., Campanula persicifolia L., Campanula trachelium L., Campanula rapunculoides L., Campanula glomerata L. Optimized conditions of rhizogenesis. The effect of the different sterilization and antibiotics concentration (kanamycin, benzyl penicillin, gentamicin, klaforan on the growth and development of adventitious plants has been studied. Solutions of antibiotics for sterilization in addition to chlorine-containing agent («Belizna» and mercury (thimerosal are needed. The possible negative effects of the addition of antibiotics in incubation solution lead to increasing of somaclonal variation, neсrosis, disturbance of chlorine synthesis («fatal lack of chlorophyll», slow down the growth of adventitious shoots, and others. It is proposed LED lighting culture in a rack 16 hour period lighting LED strip 12 V power 4.5 W/m (3 LED 10 cm tape, general illumination of 2500–3000 lux. Each shelf is added with red tape photodiodes. The results allow, if necessary, to obtain plantation quantity of these kinds of Campanula in a short time.

  8. 2D resistivity survey in complex geological structure area. Application to the volcanic area; Fukuzatsuna chishitsu kozo chiiki ni okeru hiteiko nijigen tansa. Kazangan chiiki deno tekiorei

    Asakawa, S; Ikuma, T; Tanifuji, R [DIA Consultants Co. Ltd., Tokyo (Japan)

    1996-05-01

    Introduced herein is an application of 2D resistivity survey to a volcanic rock area where the survey result is difficult to interpret because of its complex geological structure. In a dam site survey, main problems involve the permeability of water through faults and weathered, altered zones. At this site, a 2D resistivity survey was conducted, a 2D geological structure was deduced from the resistivity section, and the result was examined. It was found that resistivity distribution was closely related to hydrographic factors, but no obvious correlation was detected between rock classes and R, Q, and D. In conducting investigations into a section planned for a highway tunnel, it was learned that the problem was a volcanic ash layer to collapse instantly upon absorbing water, and the distribution of the ash layer, not to be disclosed by boring, was subjected to a 2D resistivity survey. The survey was conducted into the structure above where the tunnel would run, and further into the face, and studies were made about what layer was reflected by the resistivity distribution obtained by analysis. The result of the analysis agreed with the details of the layer that was disclosed afterward. 4 figs., 1 tab.

  9. Travel time and ray path computation in 2D-heterogeneous structures; Fukinshitsu kozo ni okeru jishinha soji oyobi hasen no atarashii keisan hoho

    Fujie, G; Kasahara, J; Sato, T; Mochizuki, K [The University of Tokyo, Tokyo (Japan). Earthquake Research Institute

    1996-05-01

    Methods were studied for determining the initial travel time and ray paths with stability when an non-linear travel time inversion is performed in an inhomogeneous structure. The travel time calculation was based on Faria and Stoffa`s method. First, the 2-dimension space was sectioned by grids, and `slowness` was assigned to all the lattice points. Starting from the vibration source, travel time at each lattice point is sequentially calculated. This method calculates travel time for any structure without breakup. In this study, an algorithm more sophisticated than the method of Faria, et al., was developed, and the improvement of travel time calculation accuracy led to the accurate determination of the direction of incidence into the lattice points during the initial motion. The calculation of ray paths was effected by tracing back from the receiving points the incidence into the lattice points or by following back the ray paths to the vibration source. This method performs stable calculation for a heavily inhomogeneous structure and, with the algorithm being simple, do the parallel programming as well. 1 ref., 6 figs., 1 tab.

  10. 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

    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.

  11. Relationship between herbicide's fate of the river flowing into lake Teganuma and its molecular structure. Teganuma ryunyu kasen ni okeru josozai no dotai to bunshi kozo no kankei

    Tamura, J [Nishi Tokyo University, Yamanashi (Japan). Faculty of Science and Engineering; Ogura, N [Tokyo University o Agriculture and Technology, Tokyo (Japan). Faculty of Agriculture

    1994-04-10

    Environmental profiles of agricultural chemicals in a river flowing into Lake Teganuma were surveyed. Their dissolution and adsorption were investigated by using indoor experiments, and their behaviors were discussed from a viewpoint of molecular structure in the compounds. The herbicides detected in the river contained CNP and Benthiocarb were at high concentration at the time of spraying, but decreased sharply thereafter. The CNP had lower concentration than Benthiocarb in the river, indicating little amount flowing out from paddy fields. These differences in the environmental profiles should be attributable to natures of the herbicides. An indoor experiment has revealed that Benthiocarb has lower solubility and higher absorption strength than CNP. It was found with respect to the chemical structures that polarity increases if hetero atoms and hydrophilic substituents exist in moleculars; the solubility of Benthiocarb grows higher than that of hydrocarbons; and adsorption power relates to the area of contact with absorbing media, and absorption rate relates to the solubility, absorption power, and three-dimensional structure. 23 refs., 7 figs., 4 tabs.

  12. FY1995 study of very flexible software structures based on soft-software components; 1995 nendo yawarankana software buhin ni motozuku software no choju kozo ni kansuru kenkyu

    NONE

    1997-03-01

    The purpose of this study is to develop the method and tools for changing the software structure flexibly along with the continuous continuous change of its environment and conditions of use. The goal is the software of very high adaptability by using soft-software components and flexible assembly. The CASE tool platform Sapid based on a fine-grained repository was developed and enforced for raising the abstraction level of program code and for mining potential flexible components. To reconstruct the software adaptable to a required environment, the SQM (Software Quark Model) was used in managing interconnectivity and other semantic relationships of among components. On these two basic systems, we developed various methods and tools such as those for static and dynamic analysis of very flexible software structures, program transformation description, program pattern extraction and composition component optimization by partial evaluation, component extraction by function slicing, code encapsulation, and component navigation and application. (NEDO)

  13. Mesoporous activated carbons with metal-oxide particles prepared from Morwell coal; Morwell tan wo genryo to shita kinzoku sankabutsu tanji kasseitan no saiko kozo

    Yoshizawa, N.; Yamada, Y.; Shiraishi, M. [National Institute for Resources and Environment, Tsukuba (Japan); Kojima, S.; Tamai, H.; Yasuda, H. [Hiroshima University, Hiroshima (Japan). Faculty of Engineering

    1996-10-28

    The metal dependence of mesoporous activated carbons with various metal acetylacetonate (acac) particles prepared from Morwell coal was studied. In experiment, the mixture of Morwell coal and acac metal complexes were dissipated into tetrahydrofuran, and after agitation in Ar atmosphere, the solvent was removed by vacuum distillation. Coal specimens with Fe(acac)3, Ni(acac)2 and Co(acac)2 as acac complexes were activated by exchanging flow gas with water vapor after heat treatment in N2 gas flow at 900{degree}C. The pore sizes of the specimens were obtained from N2 adsorption isotherms by BET method and BJH method. Conditions of pores and metals in the specimens were examined by XRD measurement and TEM observation. The relation between the above conditions and pore characteristics obtained from adsorption experiment was also examined. As a result, the difference in mesopore ratio between the specimens and blank specimens was larger in the order of Fe, Co and Ni, and the effect of added metal complexes was also larger in this order. 3 refs., 3 figs., 3 tabs.

  14. Bond cleavage reactions of the bridge structure in coal in the presence of hydrogen donating compounds; Suiso kyoyosei kagobutsu sonzaika deno sekitanchu no kakyo kozo no kairetsu hanno

    Bando, N.; Kidena, K.; Murata, S.; Nomura, M. [Osaka University, Osaka (Japan). Faculty of Engineering

    1996-10-28

    In this paper, bond cleavage reactions are discussed in relation to the softening and solubilization of coal. Were used 9,10-dihydroanthracene (DHA) and 9,10-dihydrophenanthrene (DHP) as models of hydrogen donating compounds in coal, and bibenzyl, 1,2-diethane, benzylphenylether, and 1,5-dibenzylnaphthalene were used as models of bridge structure compounds. They were compared mutually, as to reactivity of coal against DHA and DHP. For the homolytic cleavage of bridges, DHA with excellent radical supplement performance provided excellent hydrogen donating performance. While, for the ipso-position cleavage of bridges, it was found that DHP can act as an effective hydrogen donor. For the reaction between coal and hydrogenated aromatic compounds, cleavage of relatively weak bonds, such as ether linkage and dimethylene linkage, occurred at about 380{degree}C, and hydrogen from DHA or DHP was consumed. On the other hand, the results suggested that the cleavage reaction at ipso-position affected by hydrogen donating solvent is also important at temperature range around 420{degree}C. 2 refs., 3 figs., 1 tab.

  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

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

    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.

  17. Fiscal 1994 survey report. Survey of energy supply/demand structure sophistication and global environmental impact; 1994 nendo energy jukyu kozo kodoka chikyu kankyo eikyo chosa hokokusho

    NONE

    1995-03-01

    Outlines of various energy supply/demand analytical models are surveyed. With environmental problems gathering importance, a number of models are being introduced in which energy supply/demand structures, long-term climate changes, and impacts of policy options on social economy are linked to each other. Some socioeconomic impact models cover a single country and others the whole world. They are various in type, ranging from dynamic optimization models to static balance models. Twenty-four models are chosen, and grouped into two types respectively covering Japan and the whole world from a geographical viewpoint and into three groups in view of their structures. Under an optimization model, such optimization is accomplished as economic growth maximization and energy cost minimization and so forth under given energy supply restrictions. Under a general balance type econometric model, an adjustment process in which capital and labor and production are coordinated across multiple departments is expressly stated. Under a partial balance type econometric model, a demand function for goods is given and optimum behavior such as consumption maximization is indirectly described. (NEDO)

  18. Fabrication of low cost high performance large size composite structures by electron beam curing (EBC); Denshisen koka (EBC) ni yoru tei cost koseino ogata fukugozai kozo no seizo

    Kamimura, K.; Parrot, P.

    1996-03-15

    This article introduces the electron beam curing (EBC), which is high speed non-heating cure technique for the high performance resin for structures, conducted by Aerospacial Co., Ltd. In this technique, very strong electron beam and X-ray are used in response to the thickness of curing region of members, and the muzzle has energy of 10 MeV as permeation control energy and power of 20 kW as cure time control power. Advantages of fabrication of composite products by EBC is derived from the elimination of exoergic and heating curing processes and the local cure molding. For the EBC, the residual stress is not generated, the size is stable, the insertion of different materials is easy without mismatch of thermal expansion between the composites and metals, the homogeneous bridge can be obtained to stabilize the material quality, the processing time can be shortened, it is suitable to mass production, and the cure of products can be controlled. About 30% to 40% of the cost of products can be reduced. 1 ref., 6 figs., 1 tab.

  19. Basic investigation on deflection wave propagation and strength of very large floating structures; Choogata futai kozo no tawami hado denpa kyodo to kyodo ni kansuru kisoteki kosatsu

    Tsubogo, T.; Okada, H. [University of Osaka Prefecture, Osaka (Japan). Faculty of Engineering

    1997-08-01

    The response strength in which deflection waves propagating in the elastic body of a large floating structure with an order of km in length and width was investigated. Attention was paid to the waves propagating the place fully away from the boundary of a very large floating body so as to obtain the dispersion relation of waves and the relation between incident waves and deflection waves. Next, the frequency response was checked from the aspect of the displacement amplitude and strength for beams and plates. The dispersion relation of waves propagating the place fully away from the boundary of a very large floating body and the relation between the waves and infinite-point incident waves were represented by an expression. Similarly, the waves propagates more than the infinite-point incident waves in frequency, wavelength, and speed. A lower-limit value exists in the propagation speed. The displacement and stress amplitudes are represented by a relational expression. For plates, the displacement amplitude increases when the wave direction coincides with the small-rigidity direction. The stress amplitude is maximized when the waves corresponding to the ``wave below a floating body = size of a characteristic wave number`` reach the large-rigidity direction. 10 refs., 10 figs., 2 tabs.

  20. Extension of the Fukaya fault and deep structure of the Konan terrace; Fukaya danso no encho to Konan daichi no chika kozo

    Yamaguchi, K; Kano, N; Yokokura, T; Kiguchi, T; Yokota, T; Tanaka, A [Geological Survey of Japan, Tsukuba (Japan); Sato, H [The University of Tokyo, Tokyo (Japan). Earthquake Research Institute

    1997-10-22

    With an objective to elucidate the relationship between the central tectonic line in the Kanto area and the active faults appearing in topography, seismic exploration using the reflection method has been carried out. The course of traverse was set in the south west to north east direction starting from the north east part of the Kanto mountainous area to the Menuma lowland passing through the Konan high plain. The line crosses nearly perpendicularly the direction in which the general beds in this area run. A 400-kg weight was used as a vibration source in the western half of the course of travel, and the MinivibT15000 (made by IVI Corporation) in the eastern half. Considerations given based on the preliminary CMP polymerization time cross section may be summarized as follows: the Fukaya fault cannot be tracked topographically further to the south east side than Mikejiri in Kumagaya City, but the reflection face from CMP 2050 to about 2100 shows an inclined bed on the south west side and a horizontal bed on the north east side; judging from change in the inclination in the beds, the Fukaya fault is thought to extend to the south east direction; the location of inclination change on the cross section turns to the south west side as the depth increases; and, if this is regarded as the fault face, the Fukaya fault could be said an inverse fault. 5 refs., 2 figs.

  1. Simulation of fault-bend fold by incompressible Newtonian fluid; Hiasshukusei Newton ryutai ni yoru danso oremagari shukyoku kozo no simulation

    Tamagawa, T; Matsuoka, T [Japan Petroleum Exploration Corp., Tokyo (Japan); Tsukui, R [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-10-22

    Incompressible Newtonian fluid simulation is experimentally applied to faults typical of the compression and extension fields. A fault-bend folding structure of the flat-ramp flat fault in the compression field and a folding structure of a normal fault in the extension field are studied, and the results are compared with those obtained by the balanced cross section method. The result of calculation indicates that the velocity gradient with the ramp angle set at 30deg is correspondent to stress and that stress concentration is taking place at the ramp section of the fault. This solution is an approximation and does not necessary support the conservation of area but, when the ramp angle is allowed to change from 10 through 40deg, it is found that the conservation of area holds though roughly. It is found that the configuration of the folding structure formed by a flat-ramp flat fault is positioned between the anomalous-mode layer parallel shear typical of a balanced cross section and the folding structure formed by a vertical shear. 7 refs., 7 figs.

  2. Estimation of underground structures in Kyoto city by seismic-array observations of microtremors; Bido no array kansoku ni yoru Kyoto shinai no chika kozo tansa

    Miyakoshi, K; Kagawa, T; Akazawa, T [Osaka Soil Test, Osaka (Japan); Ogawa, Y; Shimizu, K [Osaka Gas Corp., Osaka (Japan); Ejiri, J [Obayashi Corp., Tokyo (Japan)

    1997-10-22

    Observations of microtremors were carried out to estimate the S-wave velocity structure by using arrays of seismographs around the Kyoto Research Park. The observation points were so arranged that equilateral triangle arrays may be formed with maximum radii at 0.2 km, 0.4 km and 0.8 km respectively with the premises of the Kyoto Research Park as the center. The seismographs have used seven vertical movement components (PELS), and were adjusted to a period of eight seconds. In addition, high-cut filters of 4 Hz were used because the observation areas are located in urban areas with heavy traffic. The analysis has used the spatial self-correlation method as a means to estimate phase velocity of surface waves contained in microtremors. As a result, phase velocity estimation has become possible for frequencies from about 0.4 Hz to 2 Hz, whereas the S-wave velocity structure was estimated to a depth of down to about 900 m by using as reference the result of the reflection method exploration having been carried out in the present areas. In addition, it was suggested that microtremors with frequencies higher than 1 Hz are in unsteady state in terms of time or space. 4 refs., 7 figs., 1 tab.

  3. Experimental analysis of the structure attenuation characteristics on engine noise by pseudo cylinder pressure excitation; Giji tonaiatsu kashin ni yoru engine kozo no soon tokusei hyoka

    Ozawa, H; Nakada, T [Isuzu Advanced Engineering Center, Tokyo (Japan)

    1997-10-01

    The engine structure attenuation has been experimentally analyzed by the newly developed in-cylinder excitation system. It can reproduce the complete cylinder pressure in non-running engine conditions by adopting the hydraulic and the piezoelectric actuator. The structure attenuation measured in this system has a good coincidence with the ones measured in actually engine operating conditions, meanwhile the current method, which applied only high frequency components as the excitation pressure, was shown to have the unsatisfied agreement. As a result, the proposed system has been concluded to be very useful to estimate the engine noise characteristics in non-running conditions. 4 refs., 11 figs., 1 tab.

  4. Geoelectrical structure by electrical logs and Schlumberger sounding at the Akinomiya geothermal field, Akita Prefecture; Denki kenso oyobi Schlumberger ho ni yoru Akinomiya chinetsu chiiki no hiteiko kozo

    Kajiwara, T; Takemoto, S

    1997-05-27

    Based on the electrical logging data of the existed well and Schlumberger sounding data obtained in 1974, a two-dimensional inversion analysis of the specific resistance profile was conducted at the Akinomiya geothermal field, Akita Prefecture. From the electrical logging data, relationships between the geology and the specific resistance were illustrated. The specific resistance values of basement rocks showed more than 100 ohm-m, which were higher than those of the other seams. Intrusive rocks and tuffs in the basement rocks showed locally low values less than 100 ohm-m. Younger volcanic rocks showed low values around 10 ohm-m. As a result of the two-dimensional inversion analysis, the basement rocks could be detected as high specific resistance layers. Accordingly, it was considered that the basement rocks in this field can be detected as high specific resistance layers by analyzing the results of field survey sufficiently. Low specific resistance zones were observed in the shallow depth, which corresponded to the fumarolic gases. There were some layers with remarkably varied specific resistance values, which were considered to be related with alteration. 6 refs., 3 figs.

  5. Efficient calculation of potential distribution in two-layer earth; Niso kozo daichikei ni okeru denki tansa no tame no koritsuteki den`i keisan shuho

    Kataoka, M; Okamoto, Y [Chiba Institute of Technology, Chiba (Japan); Endo, M; Noguchi, K [Waseda University, Tokyo (Japan); Teramachi, Y; Akabane, H [University of Industrial Technology, Kanagawa (Japan); Agu, M [Ibaraki University, Ibaraki (Japan)

    1997-05-27

    An efficient calculation method of potential distribution in the presence of an embedded body in multi-layer earth has been proposed by expanding the method of image with a consideration of multiple reflection between the ground surface and each underground boundary. For this method, when solving boundary integral equation with the potential of embedded body surface as only one unknown, i.e., when obtaining discretization equation, ordinary boundary element program developed for analyzing the finite closed region can be used. As an example, numerical calculation was conducted for the two-layer earth. The analysis expression of potential distribution in the case of the certain embedded body in two-layer earth has never published. Accordingly, the calculated results were compared with those by the integral equation method. As a result, it was concluded that the primary potential obtained from the present method agreed well with that obtained from the integral equation method. However, there was a disregarded difference in the secondary potential. For confirming the effectiveness, it was necessary to compare with another numerical calculation method, such as finite element method. 5 refs., 5 figs.

  6. 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

    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.

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

    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)

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

    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)

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

    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.

  10. Life prolongation and cost reduction of steel ladles with improving refractories and their structure; Taikabutsu zaishitsu to kozo kaizen ni yoru shuka taikabutsu no chojumyoka to kosuto teigen

    Nakai, Masato; Kasahara, Hajime; Fukutani, Fujio; Imai, Hiroyuki [Nippon Steel Corp., Tokyo (Japan)

    1999-06-01

    Steel Making Plant, Hirohata Iron Works, Nippon Steel Corp. succeeded to reduce the cost of furnace materials by measures described below down to 49% compared to that in 1992. (1) For tuyre bricks, cleanability against oxygen was improved by compacting by vacuum cast forming. (2) For SL bricks, the cost was reduced by applying imported bricks and optimization of the range of use. (3) For alumina-magnesia amorphous refractories for side walls, low expansion and breaking resistance were improved by optimization of magnesia quantity and silica ultra fine powder quantity. (4) For side wall structure, improvement of tie-in between the ground part and the side wall and lining with efficient thickness were carried out. (NEDO)

  11. Nonlinear effects and vortical structures in homogeneous rotating turbulence under stable density stratification; Antei seisoka ni aru kaiten ichiyo ranryu no hisenkei koka to uzu kozo

    Tsujimura, S.; Iida, O.; Nagano, Y. [Nagoya Institute of Technology, Nagoya (Japan)

    2000-02-25

    The generation mechanism of the vertical vortices associated with the baroclinic instability and the effects of nonlinear term on the vortices are investigated by using both direct numerical simulation (DNS) and rapid distortion theory (RDT). Two kinds of the anisotropic flow fields are used as initial conditions. As a result, the initial anisotropy of Reynolds stresses is found to affect asymmetry of the vertical vortices. In the cases where the initial vertical velocity is set to be zero, the p. d. f. of the vertical vorticity tends to incline toward the anticyclonic side. When the vertical component of initial velocity is larger than the horizontal one, the cyclonic vortices are more enhanced. By comparing DNS and RDT, it is found that in both cases of the initial conditions the enhanced vortices of DNS are stretched in the vertical direction, which is not observed in the RDT results. This should be because the nonlinear vortex-stretching term intensifies and elongates vertical vortices in the vertical direction. The anticyclones are markedly augmented in low Prandtl number fluids, while the cyclones become dominant in the high Prandtl number case. In particular, the flow field becomes almost two-dimensionalized and Taylor columns are formed in the vertical direction in the low Prandtl number case. However, neither two-dimensionalization nor Taylor column is observed in the RDT analysis which neglects the nonlinear terms. (author)

  12. Coal structure construction system with construction knowledge and partial energy evaluation; Kochiku chishiki to bubunteki energy hyoka ni yoru sekitan bunshi kozo kochiku system

    Okawa, T.; Sasai, T.; Komoda, N. [Osaka University, Osaka (Japan). Faculty of Engineering

    1996-10-28

    The computer aided coal structure construction system is proposed, and a computational construction example is presented. The coal structure construction engine of this system fabricates molecular structure by connecting fragments sequentially inputted through a user interface. The best structure candidate is determined using construction knowledge and partial energy evaluation every addition of one fragment, and this process is subsequently repeated. The structure evaluation engine analyzes the 3-D conformation candidate by molecular dynamics, and evaluates the conformation by determining the energy value of an optimum structure. As an example, this system was applied to construction of coal molecular structure based on the actual data of partial structure composed of 26 structures from 2l kinds of aromatic cluster structures, 27 bonds from 2 kinds of bridged bonds, and 16 groups from 2 kinds of terminal substitutional groups. As a result, this system could construct a superior structure according to expert knowledge from the viewpoint of energy. 6 refs., 5 figs., 2 tabs.

  13. Correlation between the structural relaxation and the functionality of optically functional glasses; Kokinosei glass ni okeru kozo kanwa to kinosei no sokan

    Nishida, T [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    1994-12-15

    A discussion was given to elucidate the correlation between the crystallization of infrared ray permeating glass and the infrared ray permeability. The elucidation used infrared ray permeation spectrum, infrared ray absorption spectrum, and the Mosbauer effect. Reduction in permeability due to heat treatment of aluminate glass was discussed from the crystallization mechanism. Ultrafine crystals of mayenite phase having a composition ratio of CaO/Al2O3 = 1.7 diffuse and grow from the glass surface into interior as a result of heat treatment. The crystal growth is triggered by severance of Al-O tetrahedron. Gallate glass has CaGa2O4 and small amount of CaFe2O4 phase deposited when it is heat-treated in the vicinity of Tg. Although the infrared ray permeability decreases in association with the crystallization, the decrease is limited to crystallization on the glass surface, hence the permeability will not fall to zero. Laser irradiation on the gallate glass causes crystallization, resulting in reduced infrared ray permeability. Semi-stable Ca3Ga4O7 phase remains, however, because the heat energy amount is not large. Tellurite glass has {alpha}-TeO2 and a small amount of telluric acid iron deposit when heat-treated. 29 refs., 10 figs.

  14. Integration of the market of the European Community and the change of the industrial structure; EC shijo togo to sangyo kozo no henka

    Nakamura, T; Uno, K; Tanimoto, T; Yamashita, T [Osaka Sangyo University, Osaka (Japan). Institute for Industrial Research

    1994-11-22

    This paper describes progress of the cooperation as to the integration of EC market and the change of industrial structure. For the structural change in the industry and economy accompanied by the integration of EC, effects of the Maastricht Treaty on the economic structure of EC are described. It is considered that the EC countries are affected by the political and economical restrictions due to the agreement of this treaty. For the change in the distribution structure accompanied by the integration of EC, obstruction factors of the deregulation of EC transportation market are especially investigated. Differences in the distribution capacity, various regulations and standards, and labor condition among individual countries are pointed out as the obstruction factors. For the unity of Germany and its economical and administrative influence, various problems are pointed out as to the economical confusion, progress in the de-nationalization of enterprises, management of real estate and land, etc. For the structural change in the road freight market in the member nations of EC, the structure of road freight market is made clear for the previous West Germany before the integration of European market. It is confirmed that the internationalization of the German domestic market is being promoted.

  15. Integration of the market of the European community and the change of the industrial structure. EC shijo togo to sangyo kozo no henka

    Tanimoto, T; Uno, K; Nakamura, T; Yamashita, S [Osaka Sangyo University, Osaka (Japan). Institute for Industrial Research

    1992-11-20

    This paper considers problems in the change of the industrial structure as a result of the EC market integration, and the change of the physical distribution structure, mainly in cargo transportation. The market integration is being moved forward mainly on liberalization of flows in people, materials, and currencies, but the material flow liberalization has not progressed noticeably because of difficulty in deregulations. Changes in the transportation structure on the whole in the EC countries would not see a complete removal of barriers supported by the transportation licensing system because of issues in protecting domestic transportation markets and sharing the road expenses, even if the tariff barrier has been removed as a result of the market integration. Amid the predictions on deregulated legislations and intensified competition associated with the integration, the French trucking industry is indicated of its direction toward a two-layer structure comprising large-scale enterprises and medium-to-small companies. The German unification created problems in transferring from the socialistic command economy to the capitalistic market economy. The paper gives considerations on the real state of affairs in the privatization policy of the people-owned enterprises in the former East Germany, and its economic and managerial problems that should be solved amid the large-area EC market integration based on the mutualism over and above the economic system transition.

  16. Crustal temperature structure derived from a ground temperature gradient chart of Hokkaido; Hokkaido no chion kobaizu kara motometa chikakunai ondo kozo

    Okubo, Y. [Geological Survey of Japan, Tsukuba (Japan); Akita, F. [Hokkaido Geological Survey, Sapporo (Japan); Nagumo, S. [Oyo Corp., Tokyo (Japan)

    1997-05-27

    The Hokkaido Underground Resources Investigation Institute has prepared in 1995 a detailed temperature gradient chart that shows local anomalies around volcanoes. This paper describes an attempt to derive crustal temperature structure of Hokkaido from the above data. The model was hypothesized as a primary model in which no thermal convection exists. In volcanic and geothermal areas which show a temperature gradient of more than 100 {degree}C km {sup -1}, a solidus temperature is reached at a depth shallower than 10 km. Below the volcanic chain forming the Chishima arc, a partially melted region exists in a width of about 100 km. Most of the areas in the southern Hokkaido have the temperature reached the solidus temperature in the crust. On the other hand, in most of the areas of the forefront side, no solidus temperature is reached in the crust. In the temperature structure of a cross section crossing almost orthogonally with the volcanic front passing through Mt. Daisetsu, a high temperature area reaches to a shallow portion beneath Mt. Daisetsu, where the depth at which the solidus temperature is reached is 10 km or shallower. The range of area where the solidus depth is shallower than 10 km has a south-west width of about 40 km. This means that a partially melted area with a size of 40 km in the horizontal direction exists at a depth of several kilometers. 20 refs., 3 figs.

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

    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.

  18. Global environment assessment survey by advancing the energy demand and supply structure. 4; Energy jukyu kozo kodoka chikyu kankyo eikyo chosa. 4

    NONE

    1997-03-01

    To investigate the energy demand and supply structure in Japan, the international trend of approaches to global warming problems and the mitigation options to global warming in the energy related sectors have been surveyed. For the United Nations Framework Convention on Climate Change, an Ad-hoc Group has discussed relevant topics after the 1st conference of the Parties. Meetings of the Group primarily focused on what objectives to set for the reduction of greenhouse gas (GHG) emissions in and in and after 2000. IPCC completed their Technical Paper in November 1996 in which technologies and measures to reduce GHG emissions and to enhance GHG sinks were analyzed and evaluated in various aspects. This Paper discusses about each sector of institutional buildings sector, transport sector, industrial sector, and energy supply sector. Especially, in the energy supply sector, promising approaches to reduce future emission include more efficient conversion of fossil fuels, switching to low-carbon fossil fuels, decarbonization of flue gas and fuels, CO2 storage, switching to nuclear energy, and switching to renewable sources of energy. 5 refs., 2 figs., 14 tabs.

  19. Survey of effects of enhancement of the energy supply/demand structure on the global environment. 3; Energy jukyu kozo kodoka chikyu kankyo eikyo chosa. 3

    NONE

    1996-03-01

    For the purpose of studying how the energy supply/demand structure in Japan should be, a report on the secondary IPCC (Intergovernmental Panel on Climate Change) evaluation was analyzed. Possibilities of reducing the world CO2 emissions in association with the energy consumption were studied in the five assumed cases. Every case says that CO2 can be reduced to 1/3 of the 1990 level by 2100. In a case of the use of biomass as main fuel (1), the use of primary energy is suppressed to two times the 1990 level, and photovoltaic/wind/biomass power generation is introduced in a large quantity. Synthetic methanol and hydrogen are used for transportation and commercial/residential use fuels. There are four more assumed cases: the use of nuclear power as a substitute for renewable energy in the power generation in (1), the use of natural gas of 1.5 times that used in (1), the substitution of coal for biomass used in (1), and the assumption that the demand for primary energy in 2100 will be twice that used in (1). In Japan it is assumed that basically the nuclear power generation will be expanded, that the photovoltaic and waste power generation will be introduced in a large quantity, and that synthetic methanol and hydrogen are mainly used as transportation and commercial/residential use fuels. It is necessary, therefore, to analyze conditions under which the quantity introduction of such non-fossil energy is made possible. 11 figs., 31 tabs.

  20. NEDO coal mining structure adjustment subcommittee. 18th project report meeting; NEDO sekitan kogyo kozo chosei bunkakai. Dai 18 kai jigyo hokokukai

    NONE

    1998-09-01

    Concerning the subject matter, a NEDO (New Energy and Industrial Technology Development Organization) director Keishiro Kawamo reports on NEDO's projects designed to smoothly implement the 'new coal policy'. Nobuaki Terasaka, chief of the planning division, coal and new energy department, Agency of Natural Resources and Energy, takes up the current status of the coal policy and the tasks it faces, and discusses, predicting the development of the coal policy, the assurance of stable supply of coal from abroad, development of clean coal technologies that will rightly deal with the world-wide environmental problems, and the international diffusion of the clean coal technologies and the completion of the basement therefor. Concerning the 'development of zeolite-related commodities,' a report is delivered on the manufacture of a soil improving material and a deodorant for fish grill from zeolite found rich in coal layers of Pacific Coal Mine Co., Ltd. Concerning the 'polycrystalline diamond manufacturing project,' a polycrystalline diamond synthesizing method making use of the blasting technique employed at coal mines is reported. (NEDO)

  1. Report on fiscal 1998 investigation of Jozankei hot spring conservation and hot spring structure; 1998 nendo Jozankei onsen hozen chosa. Onsen kozo chosa hokokusho

    NONE

    1999-10-01

    With the purpose of evaluating recoverable hot water quantity and elucidating the change over a long term, investigations were carried out, with the results summarized, on the geology, alteration zone, gravitational analysis, fluid geochemistry and hydraulics in the area. The investigations covered the area of 7 km x 6 km in about 30 km southwest of Sapporo City and were performed for the period from September 10, 1998 to October 31, 1999. The results were as follows. In the Jozankei area, with the Usubetu layer in the Old Tertiary system as the basement, layers are superposed from the Palaeogene Oligocene to the Quaternary Pleistocene. Distributing in various places between Yunosawa vicinity and Jozankei Hot Spring area are acid to neutral geothermal alteration zones. The hot spring gushing-out zone in the Jozankei hot spring area is supposed to be regulated by side-by-side cracks in the NE-SW direction. It was inferred from tritium concentration and a minor component ratio that, as the mechanism of forming a hot spring, water of precipitation origin circulating and residing for a long time on the Usubetsu layer which is marine sediment is heated by a volcanic heat source latent in the depth. (NEDO)

  2. Learning model of eye movement system based on anatomical structure; Kaibogakuteki kozo ni motozuita gakushu kino wo motsu gankyu undo system to sono tokusei

    Zhang, X.; Wakamatsu, H. [Tokyo Medical and Dental University, Tokyo (Japan)

    1998-07-01

    A learning system is proposed to explain the adaptive function of an eye movement consisting of compensatory and optokinetic reflex, and pursuit movements based on the brain anatomy and physiology. Thereby, the learning system is synthesized as an artificial neural network based on the structure and function of the biological neural network of flocculus. The role of neural paths into flocculus from stretch receptors of ocular muscles are discussed in detail from the viewpoint of system control engineering. The mathematical learning process is also shown taking into account the adaptive mechanism and the anatomical structure of vestibular nuclei. The experimental results through simulation confirm the validity of the hypothesis and the appropriateness of the inference process in connection with the proposed mathematical model. 18 refs., 11 figs.

  3. Hybrid structure in civil engineering construction. Composite types of steel and concrete; Doboku bun`ya ni okeru fukugo kozo. Kozai to concrete no ittai keishiki

    Sato, T. [JR Railway Technical Research Inst. Tokyo (Japan)

    1995-03-30

    In connection with hybrid structures in civil engineering construction, classification and application of composite types of steel and concrete are discussed. H steel embedded beam is a composite beam in which the H shape steel of the main beam is connected to rolled or welded H shape steel using cross beams. Composite structure columns are grouped into the composite column and the steel pipe concrete column. SRC piers are often adopted from the viewpoints of constraints for execution of works and vibration proof. Steel and concrete hybrid structure is a kind of structural system in which various kinds of materials such as steel, RC, or PC members are connected. The cable stayed bridge utilizes characteristics of steel and concrete effectively. For the piers of municipal expressway viaducts, there are executed cases of mixed structures which have RC, SRC columns for T shape piers and S structure for the bridges. SRC structure and composite columns are adopted often for structures of subway stations. 7 refs., 7 figs.

  4. Some studies on structural planning of long-span cable stayed bridge; Choshikan shachokyo no kozo keikaku ni kansuru 2,3 no kosatsu

    Endo, T. [NKK Corp., Tokyo (Japan)

    1997-06-20

    Feasibility of cabled-stayed bridges with 1000m-grade spans is discussed while re-examining the plan for constructing a Great Tatara Bridge to connect Honshu and Shikoku, Japan, and in this process various tasks and questions are isolated. Some which will be problems in designing the new bridge structure are taken up, including the load-bearing capability of the bridge as a whole, vibration of long cables, resistance to long-period earthquakes, and accuracy management during the construction work. Findings are stated below. A cable-stayed bridge is not significantly different from a suspension bridge and is sufficiently feasible until the span exceeds 1500m. When the span is longer, however, the bridge beam cross section needs be designed very prudently in view of the great axial force and wind load to be imposed on it. Effective for the assurance of load-bearing capability for a long-span cabled-stayed bridge is a structure in which load is elastically confined in the direction of the bridge axis. In connection with vibration damping for very long cables, it is verified that a new dimpled cable suits the purpose of suppressing wind load from increasing without reduction in damping effect. 28 refs., 23 figs., 7 tabs.

  5. 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

    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.

  6. Studies on connecting structure between steel shell and steel reinforced concrete; Kokaku to tekkotsu tekkin concrete tono ketsugo kozo ni kansuru kenkyu

    Morimoto, A. [Kinki University, Osaka (Japan). Faculty of Science and Engineering; Morikawa, H.; Ito, N. [Metropolitan Expressway Public Corp., Tokyo (Japan)

    1996-02-15

    On the insert reinforcing bar structure for the connecting part of the main tower of cable stayed bridges, this paper reports verification results on a load resistant safety with a full-scale model, structure analysis and construction work. The basic structure was composed of a drilled steel shell, inserted reinforcing bars, fixing structure of bars in lining concrete of the shell and a pressure bearing plate. As an experimental result, the connecting part had a sufficient load carrying capacity against both tensile and compressive loads. The shear stress of the insert reinforcing bar structure was estimated successfully under von Mises`s condition. The shear spring constant in deformation characteristics was linearly proportional to an inserted reinforcing bar ratio. In earthquake, nearly 60% of an allowable compressive load was transferred to concrete through the pressure bearing plate. The analytical results of load resistant deformation characteristics of the connecting part well agreed with experimental ones, and the proposed analytical model was applicable to estimation of a dynamic behavior. 5 refs., 22 figs., 4 tabs.

  7. Proposal and study of a long-span composite cable-stayed bridge with new hybrid girder; Atarashii gosei kozo shuketa wo mochiita chodai fukugo shachokyo no kenkyu

    Yoshida, K.; Hishiki, Y.; Furuichi, K. [Kajima Corp., Tokyo (Japan)

    1999-09-30

    A hybrid or mixed structure (composite structures) are a matter of increasing concern which takes in each advantage of steel and concrete. A field of bridges is no exception, with the plan and construction carried out for the new type of composite bridge, such as a composite cable-stayed bridge and a composite extra dose bridge as a long span bridge, and a composite truss bridge and a corrugated steel plate web bridge as a medium-span bridge, with technological development becoming active in this field. In such a technological trend, a hybrid two-girder structure was devised, a structure consisting of a concrete filled steel pipe for a girder and a precast (PC) floor plate for a floor board, as the girder structure of a long-span cable-stayed bridge in the subject research; also, applicability was examined using, as an example, the composite cable-stayed bridge with hybrid girders employed for the span. This paper reports the result of the analysis of the entire system, the analysis made for the purpose of examining the characteristic and the feasibility of this hybrid girder. The analysis revealed the structural feasibility of the long-span composite cable-stayed bridge using two hybrid girders of concrete-filled steel pipes thus devised. (NEDO)

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

    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.

  9. FY 1999 report on the results of the experimental verification and assessment on the establishment of a centralized load control system. Experimental verification on the establishment of a centralized load control system; 1999 nendo fuka shuchu seigyo system kakuritsu jissho shiken system no shiken hyoka. Fuka shuchu seigyo system kakuritsu jissho shiken

    NONE

    2000-03-01

    The indirect load control system appropriately supplies information on the state of electricity use, peak adjustment financial incentive, etc. through TV at users. The direct load control system controls air conditioner by radio from control station. The indirect/direct load control effect per user in peak zone of a week day at 15:00 at highest temperature of 30 degrees C or more is 80-100W, which is equivalent to 13% of the electric power consumption. A certain effect was verified. The use of electricity with ideas has been settled consciously, and the continuity of action and consciousness is recognized. When hot days at highest temperature of 30 degrees C or more last, the rate of users which use electricity with ideas decreases, and the control effect becomes lower. As a result of having supplied on a day at highest temperature above 30 degrees C the information on energy saving different from usual, the higher control effect than usual was acquired. It will continue to the certain and effective control to effectively make the direct control which is not dependent upon actions of users such as the supply of information different from usual at the time of the continued unusual summer heat and the increasing demand for air conditioner, and the control of air conditioner focussing on a certain time. (NEDO)

  10. Study of QoS control and reliable routing method for utility communication network. Application of differentiated service to the network and alternative route establishment by the IP routing protocol; Denryokuyo IP network no QoS seigyo to shinraisei kakuho no hoho. DiffServ ni yoru QoS seigyo no koka to IP ni yoru fuku root ka no kento

    Oba, E.

    2000-05-01

    QoS control method which satisfies utilities communication network requirement and alternative route establishment method which is for sustaining communication during a failure are studied. Applicability of DiffServ (Differentiated Service), one of the most promising QoS control method on IP network and studying energetically in IETF WG, is studied and it is found most application used in the utility communication network except for relaying system information could he accommodated to the DiffServ network. An example of the napping of the utility communication applications to the DiffServ PHB (Per Hop Behavior) is shown in this paper. Regarding to the alternative route, usual IP routing protocol cannot establish alternative route which doesn't have common links and nodes in their paths for a destination. IP address duplication with some modification of routing protocol enables such alternative route establishment. MPLS, distance vector algorithm and link state algorithm are evaluated qualitatively, and as a result, we found MPLS is promising way to establish the route. Quantitative evaluation will be future work. (author)

  11. FY 1999 report on the experimental verification on the establishment of a centralized load control system. Survey of safety of the commercialized system; 1999 nendo fuka shuchu seigyo system kakuritsu jissho shiken jitsuyo system anzensei chosa. Fuka shuchu seigyo system kakuritsu jissho shiken

    NONE

    2000-03-01

    For the purpose of leveling load for the residential electric power demand, technical standards for the indirect load control system were studied in FY 1999. As to the systematization of safety standards, made clear were technical standards, items for experiment, etc. for the user equipment monitor control system trially developed/manufactured. Namely, those are tests correspondent to technical standards of electrical appliances, tests on the influence of external agitation, etc., measurement of the leakage electromagnetic field amount, etc. In the study of the energy use optimization support, concepts for optimization were comprehensively asked by the effective air conditioner operation method and from the state surrounding users. Studies were made of effects of the air conditioner control, indices of assessing amenity of users which becomes factors to promote the centralized load control. In the study of the optimum in-house communication method, made were the confirmation of effectiveness of the power-line carrier transmission method, future outlook using other communication technologies, and evaluation of economical efficiency. As to the enhancement of communication reliability, the effectiveness of measures for improvement by alteration to a multi-carrier system transceiver which realizes improvement of the basic performance of equipment was recognized beside the addition of LC circuits which are aimed at improving the communication environment. (NEDO)

  12. Study on fabrication methods of composite structures (1st. report); Joule effect curing of CFRP composite structures and its application to bonding and repair. Fukugo zai kozo no seikei kako ho ni kansuru kenkyu (Dai 1po); CFRP kozo no Joule koka wo riyo shita cure ho to setsugoter dot hoshu e no oyo ni tsuite

    Moriya, K. (The National Defense Academy, Kanagawa (Japan))

    1990-07-05

    A method for curing CFRP composite structures by using Joule effect is presented. Due to the presence of fiber to fiber contact, CFRP composites and their prepregs exhibit electrical conductivity in the direction transverse to fibers as well as in the fiber direction, and they can be considered as electrically homogeneous on a gross scale. Therefore, passing an electric current through a CFRP prepreg, it is self-heated due to the Joule effect. Feedback current control maintains the prepreg temperature at a desired level and makes the prepreg be cured by a specified cure cycle. Experimental verifiactions have been carried out to demonstrate the feasibility of the present technique. The applications to the bonding of CFRP components and to the patch repairs of effective CFRP structure are also described. 12 refs., 12 figs.

  13. Exploration of underground basement structures in Kanto plain using the spatial autocorrelation method. 1. S-wave velocity structure along the line from Hatoyama, Saitama to Noda, Chiba; Kukan jiko sokanho ni yoru Kanto heiya no kiban kozo tansa. 1. Saitamaken Hatoyama machi - Chibaken Nodashi kan no S ha sokudo kozo

    Matsuoka, T; Umezawa, N; Shiraishi, H [Saitama Institute of Environmental Pollution, Saitama (Japan)

    1997-05-27

    The Saitama prefectural government has been conducting basement structure exploration using the spatial autocorrelation method by dividing the entire plain area into meshes, for the purpose of improving the accuracy of estimating large-scale seismic damages. This paper reports the result of explorations on meshes in the east-west direction in the central part of Saitama Prefecture. The present exploration was intended on ten meshes in the east-west direction along the north latitude 36-degree line. The number of exploration points is 13 comprising three points on the hilly area bordering on the eastern edge of the Kanto mountainous area and ten points on the plain area. The arrangement constitutes a traverse line with a total distance of about 33 km from the west edge (Hatoyama-machi in Saitama Prefecture) to the east edge (Noda City in Chiba Prefecture). The phase velocities were estimated from the result of the array microtremor observations using the spatial autocorrelation method applied with the FET. The phase velocities were used to estimate underground structures by using an inverse analysis. As a result, detailed two-dimensional S-wave velocity structures were revealed on the traverse line. The velocity cross section expresses change in the basement structures with sufficient resolution, and at the same time the information is judged highly harmonious with existing deep boring data and the result of artificial earthquake exploration. 15 refs., 6 figs.

  14. Exploration for petroleum and natural gas in Sonai Plain

    Konishi, K

    1965-09-01

    Exploration in the Sonai Plain by Sekyu Shigen Kaihatsu Kabushiki Kaisha (Oil Resources Development Corporation) since 1955 is described. The development tasks are made difficult due to the presence of permeability traps. However, 41 out of 65 wells drilled up to late March of 1965 have been successful. Quantities of crude oil and natural gas produced in 1963 were, respectively, 5 and 6 times those of 1958. The Sonai Plain is a relatively new area, and there are still many unknown factors, yet the rate of development has increased greatly. More and deeper wells are expected to be drilled with even better results.

  15. Current srate and problems in Japanese petroleum development. ; International trends in petroleum development and problems in Japanese devepment business. Waga kuni sekiyu kaihatsu no genjyo to mondai ten. ; Sekiyu kaihatsu no kokusai doko to waga kuni kaihatsu jigyo no kasai

    1991-11-05

    Petroleum production and its supply and demand require ever closer coordinations among the countries involved. On the other hand, however, there a large number of difficult questions as the problems of global environmental pollution and greenhouse effects increase their seriousness and the economic resources in the petroleum business become scarcer. This paper describes the current state of the Japanese petroleum development, the necessity of spontaneous petroleum development, the international trends in the petroleum development business, and the tasks for Japan in the petroleum development business. Japan is a late comer in the petroleum development business. There are such difficulties as sizes of oil fields being discoverd are becoming smaller, the natural conditions in development target areas are getting severer, and the economic effects are inferior. Japan, whose petroleum self-supply rate is about 0.3%, whose petroleum dependency is heightening as a result of increase in nuclear power generation, and who is the third largest petroleum consuming country next to the U.S.A and Soviet, must use efficiently her financial and technical powers to vitalize her spontaneous petroleum development. Japan has a duty to contribute to the world {prime}s future stabilized supply of oil. The Japanese Government has launched the five-year fund development plan to perform basic surveys for ail in the north-east part of the Japan Sea and the pacific Ocean.

  16. Development in fiscal 1999 of technology to put photovoltaic power generation system into practical use. Management of research and development (System development committee working group); 1999 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Kenkyu kaihatsu kanri (system kaihatsu bukai)

    NONE

    2000-05-01

    This paper reports activities carried out in fiscal 1999 by the system development committee working group, a subordinate organization of the committee for development of the photovoltaic power generation technology. The items of implementation laid with emphasis in the current fiscal year included deliberations on the research achievements of the projects completed in fiscal 1999, on the research achievements of the new projects during fiscal 1999, and on pre-final evaluation of the development of a technology to put photovoltaic power generation system into practical use. The themes on the progresses in fiscal 1999 reported in March 2000 consisted of the followings: research and development of a system evaluation technology, investigation and research on supply capability evaluation on the photovoltaic power generation system, researches on peripheral devices for AC modules, investigation and research on electric safety of the photovoltaic power generation system, investigation and research on long-term reliability of inverters, investigation and research on meteorological data for optimal design, investigation and research on evaluation of the photovoltaic power generation, research on a photovoltaic power generating multi-hybrid system, research on a high-density linkage technology, and demonstrative research on a solar beam micro-hydraulic hybrid system. (NEDO)

  17. 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

    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)

  18. 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

    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.

  19. ONRASIA Scientific Information Bulletin. Volume 17, Number 4, October-December 1992

    1992-12-01

    Singapore will soon etc.) but enabling technologies. We join Japan as the only Asian have to bear in mind that new Dr. Scow Boon Quek countries with...Thomas F. 3-237 Donoghue, Michael 1-137 Lu, Stephen 4-063 Flynn, Anita 2-099 Meyer, Robert A. 3-173 Fujii, Kozo 4-099 Moffett, Jonathan D. 1-061 Gibor

  20. Summary of FY 1980 results of Sunshine Project. Development of coal liquefaction techniques; 1980 nendo sekitan ekika gijutsu no kaihatsu seika hokokusho. Sunshine keikaku itaku kenkyu kaihatsu

    NONE

    1981-03-01

    This report summarizes the results of the 3 R and D themes for coal liquefaction techniques, pursued by the Sunshine Project; (1) development of solvent extraction type liquefaction plant, and brown coal liquefaction technique R and D demonstration surveys, (2) development of solvolysis type liquefaction plant, and (3) development of direct hydrogenation type liquefaction plant. For the theme (1), the 1 T/D test plant, solid/liquid separator and small-size continuous settlement separator are constructed, and partly completed. The elementary studies include solvent extraction type liquefaction process, materials for coal liquefaction plant and solid/liquid separation. Australia's Victoria brown coal and Chinese coal are studied to clarify the possible problems involved in liquefaction of these coal species for commercialization of the liquefaction techniques in the early stage. The elementary techniques studied include dehydration of brown coal, milling at high temperature in oil, de-ashing, and secondary and primary hydrogenation. For the theme (2), the 1 T/D plant is inspected and maintained to clarify the problems involved in the continuous operation, revamped and repaired as necessary, given preventive maintenance, and tested for operability confirmation. The elementary studies include solvolysis type liquefaction process, scale-up, hydrogenation plant for solvolysis pitch. For the item (3), the 2.4 T/D test plant is constructed, and the elementary studies are conducted, for, e.g., liquefaction reactions in the presence of an iron-based catalyst. (NEDO)

  1. Research and development of photovoltaic power system. Research on low temperature deposition of polycrystalline thin films; Taiyoko hatsuden system no kenkyu kaihatsu. Teion seimaku gijutsu no kenkyu kaihatsu

    Sato, K [Tokyo Univ. of Agriculture and Technology, Tokyo (Japan). Faculty of Technology

    1994-12-01

    This paper reports the result obtained during fiscal 1994 on research on a technology of low temperature deposition of polycrystalline thin films for solar cells. This research used ITO coated glass substrates, on which CdS was accumulated to a thickness of about 100 nm by using the CBD process, and over this deposition a CuInSe2 film was formed at 300{degree}C by using the ion cluster beam (ICB) process. The manufactured solar cells with a glass/ITO/CdS/CuInSe2/Au structure had an efficiency of 2%. In manufacturing a CuGaSe2 thin film by using the ICB process, effects of acceleration voltage relative to cluster beams and ionization current were investigated. It was found that the film morphology, the result of analysis by using X-ray diffraction, and the electric conductivity are sensitive to the ionization current. From these findings, an optimum film forming condition was derived. A CuGaSe2 thin film was manufactured by using the ICB process over a Cds thin film deposited by using the CDB process. Both of the surface morphology and X-ray diffraction patterns of the film did not show a large change, indicating a possibility of manufacturing cells with a reverse structure. Effects of heat treatment on CuInSe2 monocrystals were evaluated by using ESR and FTIR. 6 figs., 1 tab.

  2. Development of large scale wind energy conservation system. Development of large scale wind energy conversion system; Ogata furyoku hatsuden system no kaihatsu. Ogata furyoku hatsuden system no kaihatsu

    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 development of large scale wind energy conversion system. The study on technological development of key components evaluates performance of, and confirms reliability and applicability of, hydraulic systems centered by those equipped with variable pitch mechanisms and electrohydraulic servo valves that control them. The study on blade conducts fatigue and crack-propagation tests, which show that the blades developed have high strength. The study on speed-increasing gear conducts load tests, confirming the effects of reducing vibration and noise by modification of the gear teeth. The study on NACELLE cover conducts vibration tests to confirm its vibration characteristics, and analyzes three-dimensional vibration by the finite element method. Some components for a 500kW commercial wind mill are fabricated, including rotor heads, variable pitch mechanisms, speed-increasing gears, YAW systems, and hydraulic control systems. The others fabricated include a remote supervisory control system for maintenance, system to integrate the wind mill into a power system, and electrical control devices in which site conditions, such as atmospheric temperature and lightening, are taken into consideration.

  3. Summary of FY 1980 results of Sunshine Project. Development of coal liquefaction techniques; 1980 nendo sekitan ekika gijutsu no kaihatsu seika hokokusho. Sunshine keikaku itaku kenkyu kaihatsu

    NONE

    1981-03-01

    This report summarizes the results of the 3 R and D themes for coal liquefaction techniques, pursued by the Sunshine Project; (1) development of solvent extraction type liquefaction plant, and brown coal liquefaction technique R and D demonstration surveys, (2) development of solvolysis type liquefaction plant, and (3) development of direct hydrogenation type liquefaction plant. For the theme (1), the 1 T/D test plant, solid/liquid separator and small-size continuous settlement separator are constructed, and partly completed. The elementary studies include solvent extraction type liquefaction process, materials for coal liquefaction plant and solid/liquid separation. Australia's Victoria brown coal and Chinese coal are studied to clarify the possible problems involved in liquefaction of these coal species for commercialization of the liquefaction techniques in the early stage. The elementary techniques studied include dehydration of brown coal, milling at high temperature in oil, de-ashing, and secondary and primary hydrogenation. For the theme (2), the 1 T/D plant is inspected and maintained to clarify the problems involved in the continuous operation, revamped and repaired as necessary, given preventive maintenance, and tested for operability confirmation. The elementary studies include solvolysis type liquefaction process, scale-up, hydrogenation plant for solvolysis pitch. For the item (3), the 2.4 T/D test plant is constructed, and the elementary studies are conducted, for, e.g., liquefaction reactions in the presence of an iron-based catalyst. (NEDO)

  4. Development of small-size transmission tower erection method; Kogata tetto kumitate koho no kaihatsu kenkyu (gaibushiki crane ni yoru kogata tetto kumitate koho no kaihatsu)

    Matsuishi, S.; Asano, J.; Koji, Y. [Kansai Electric Power Co. Inc., Osaka (Japan); Tsujimura, I.; Teramoto, A. [The Kanden Kogyo Incorporated, Osaka (Japan); Sasaki, T.; Mito, K. [AG Ajikawa Corp., Osaka (Japan); Tsuji, M.; Fukumoto, T.; Yamaguchi, N.

    1997-09-30

    To reduce the construction period and cost and to enhance the safety during 77 kV-class transmission tower election, a new method of small steel transmission tower erection using an external type crane has been developed. For the selection of cranes, a commercially available self-climbing crane was employed which has an operating radius of 11 m, a lifting load capacity of 1.5 t, and a lift of up to 60 m. For the space analysis using a model tower, various supporting methods with horizontal supporting members, stress analysis for each tower stub, and apparatuses were examined. For the demonstration tests of election using the model tower, strain gages were attached at each point of steel tower, crane and horizontal supporting members, to measure the stress of members at each stage of the election. It was confirmed that there were no problems. For the election of actual steel tower, the practicality of this method was compared with that of conventional methods. The construction period was reduced in 20%, and the cost was reduced in 4%. The safety of this method was drastically enhanced due to the lack of moving on the tower and less manual operation. 9 figs., 1 tab.

  5. Fiscal 1992 report on geothermal development promotion survey (Development of geothermal reservoir assessment technique); 1989 nendo chinetsu kaihatsu sokushin chosa (Chinetsu choryusou hyoka shuho kaihatsu hokokusho)

    NONE

    1994-03-01

    Efforts were exerted in fiscal 1984-1992 to develop techniques for appropriately assessing a geothermal reservoir for its productivity for duly predicting the optimum scale of power generation to be provided thereby. In the development of simulators, geothermal reservoir simulators (SING-1, -2, -3) and a geothermal well 2-phase flow simulator (WENG) were developed. As for the treatment of fractures in a reservoir and of substances soluble in the hot water, the methods for dealing with them were improved and augmented. In a model field study in a Hokkaido forest, reservoir pressure continuous observation and monitoring, temperature logging and pressure logging for existing wells, and geothermal fluid chemical analysis were performed for reservoir analysis, in which both natural state simulation and history mapping excellently reproduced the temperature and pressure distributions. The temperature and pressure distributions in a natural state simulation, out of the results of an analysis of the Oguni district model field, Kumamoto Prefecture, agreed not only with those in the natural state but also with the pressure transition data in the observation well. (NEDO)

  6. FY1997 geothermal development promotion survey. Development feasibility study 'Ashiro area'; 1997 nendo chinetsu kaihatsu sokushin chosa. Kaihatsu kanosei chosa (Ashiro chiiki) hokokusho

    NONE

    1998-12-01

    With regard to the Ashiro Town area in Iwate Prefecture, this paper reports the result of evaluations based on temperature and pressure logging after a lapse of an extended period of time (well No.2) and a steam jet test (well No.1). These activities were performed as the survey on promotion of geothermal development and survey on development feasibility in fiscal 1997. As a result of the overall analysis based on the present survey and ones in the past, the geothermal system model in the surveyed area may be conceived as follows: in both of the N7-AR-1 and N7-AR-2 wells drilled in the southern part of the surveyed area, temperature as high as 250 degrees C or higher was confirmed; the underground temperature is 200 degrees C or higher at an altitude level of zero meter and 250 degrees C at around -500 m, leading to a belief that the high temperature area spreads to south; as a fracture system holding geothermal fluid, a fault was identified at the N7-AR-1 well drilling depth of 1710 m; in the steam jet test, a geothermal reservoir (a shallow geothermal reservoir) was confirmed to exist; the geothermal fluid that has jetted out shows alkaline Na-SO{sub 4} type; and the deep geothermal reservoir has high temperature and is presumed to be in the two-phase condition, presenting promising factors as the geothermal resources. (NEDO)

  7. Customers` response to residential peak-activated pricing. Evidence from a Japanese experiment; Peak taio ryokinka ni okeru kateiyo juyoka no fuka chosei kodo no bunseki. Kansetsu fuka seigyo jikken data wo mochiita kakaku koka no sokutei

    Asano, H. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1997-10-01

    Demand side management through a pricing mechanism, that is the indirect load control was experimented to analyze the pricing effect. When power consumption in indirect load control groups is compared between peak time band in weekdays in summer and off-the-peak time band, the power is less consumed when price gap is set than in a uniform charge time. When more number of persons is in home in daytime, room cooling is used in daytime including the peak band to adjust the demand. The substitution elasticity in price between demands in the peak time band and the off-the-peak time band is from about 0.06 to 0.07, which cannot be ignored. If the peak price is increased by four times, the demand in the peak band can be reduced by about 0.15 kW (when average power demand per household is assumed 0.75 kW). For room cooling devices, the first device is often installed in a living room and the second and further units in individual rooms such as bed rooms. The more the number of device, the higher the possibility that the use time band is outside the peak time band. This indirect load control experiment is a field test related to the peak-activated pricing for small power users, by which the users` behavior against the pricing effect was identified quantitatively. 5 refs., 1 fig., 8 tabs.

  8. FY1995 dynamically up-gradable machine based on right quality control and its life cycle support; 1995 nendo tekisei hinshitsu seigyo ni motozuku doteki seicho kikai to sono lifecycle shien

    NONE

    1997-03-01

    A method for determining part re-use and recycling strategy in product design is considered for optimal design of total product life cycle based on the concept of Right Quality Products. For this purpose, it is important to be able to estimate part deterioration status under various product usage conditions. For supporting product designers' decision making about the product life cycle in preliminary design phase, the deterioration estimation is not required to be very exact, but to generate every possible deterioration modes qualitatively. Then, based on these deterioration modes, functional behaviour of target products is simulated, and possible product failure modes can be generated. By utilizing the FMEA (Failure Mode and Effect Analysis) method, the effects of failure modes are evaluated, and the results are fed back to product designers for confirming their design in terms of total product life cycle optimization. A basic methodology is considered, and case study has been done for a mechanical assembly of a one-time use camera. The assembly consists of injection molded parts. Various CAE methods have been used for predicting possible part failures due to initial residual stress, warp, fatigue, creep, and wear. Then kinematic and dynamic analysis of mechanical assembly has been done for detecting the effect of part deterioration on mechanism movements. Several critical failure modes have been detected, and the effects of those failures have been checked by the FMEA method. (NEDO)

  9. FY1995 study of the development of high resolution sub-surface fluid monitoring system using accurately controlled routine operated seismic system; 1995 nendo seimitsu seigyo shingen ni yoru chika ryutai koseido monitoring no kenkyu

    NONE

    1997-03-01

    The development of new seismic sounding system based on the new concept of ACROSS (Accurately Controlled Routine-Operated Signal System) are aimed. The system includes not only new seismic sources but also the analyzing software specialize for the monitoring of the change in subsurface velocity structure, especially in the area of fluid resources. Powerful sources with good portability are strongly required for the practical data acquisition. Portable ACROSS sources (HIT) are developed. The system is mainly used to obtain the high resolution structure with relatively short penetration distance. The principal specifications are as follows: (1) 100Hz in maximum. (2) Linearly oscillating single force. This is generated by the combined two rotator moving opposite directions. (3) Variable force with little work. (4) Very simple source-ground coupler just put even on the soft ground. The system was operated at Yamagawa geothermal plant for two months. The result of the experiments are: (1) We confirmed the stability of the source over wide frequency range up to 100Hz. (2) We confirmed that amplitude and phase of ACROSS signal can be obtained very precisely. (3) Very small change of signal which arise from subsurface velocity change are detected. This indicates that the system can detect the slight velocity change due to variation of subsurface fluid system. (NEDO)

  10. Control of surface wettability by light illumination: surface wettability control utilizing photo-induced surface reaction of titanium oxide; Hikari de nure wo seigyosuru - sanka chitan no hikari reiki hanno wo riyoshtia nure seigyo gijutsu

    Watanabe, T.; Hashimoto, K. [The Universityof Tokyo (Japan)

    1999-02-15

    We report photo-generation of highly hydrophilic surface of titanium dioxide. The photo-induced hydrophilicizing is achieved by photo-generation of Ti{sup 4+} to Ti{sup 3+} at definite sites on the surface, resulting in preferential adsorption of hydroxyl groups on corresponding oxygen vacant sites. We also report the photo-generation of titanium dioxide amphiphilic surface on definite photo illumination condition. The unique character of this surface is ascribed to the microstructure of hydrophilic and oreophilic domain. The hydrophilic or amphiphilic titanium dioxide coating can be applied for antifogging mirror or glass and also self-cleaning paint for various industrial materials. Several commercial applications including antifogging automobile side-view mirror or self-cleaning exterior ceramic tile has been starting to hit the market. (author)

  11. Frontier of nanometer devices. Part 6. New devices with fully controlled electrons and photons. Nanometa debaisu kenkyu saizensen. 6. Denshi to koshi no kanzen seigyo wo mezashita jisedai debaisu

    Arakawa, Y [The Univ. of Tokyo, Tokyo (Japan). Inst. of Industrial Science

    1994-06-20

    In the nanotechnology to realize an artificial structure of a magnitude of atomic size, new electron devices and photon devices are aimed by confining electron and controlling the behavior of the electron with transition of a quantum mechanical state including a tunneling effect. The degree of freedom of electron decreased when electron is confined in a very small area within semiconductor and is 1 in a quantum wire while it is 0 in a quantum box. Energy level of electron is completely dispersed. The condition required to realize the nanometer structure is examined and the formation techniques of semiconductor nanometer structure are studied. This paper describes research results by the authors aiming to realize quantum wire and quantum box structures. Ultrafine pattern of SiO2 is formed by electron beam drawing technique followed by crystal growth with a MOCVD method to form the quantum wire and quantum box structures successfully. Laser oscillation is successful at 77K with optical pumping using a quantum wire and vertical micro resonator. 5 refs., 7 figs.

  12. Characteristic analysis of methane-gas generation by oxidizing heat of stored coal and hold ventilation control; Sekitan unpansen ni okeru sanka hatsunetsu ni yoru methane gas hassei to sonai kankyo seigyo ni tsuite

    Fukuchi, N; Nakashima, T [Kyushu Univ., Fukuoka (Japan); Kudo, S

    1999-12-31

    A demand of coal shows the tendency in the increase worldwide, with this, the marine transportation of the coal gradually increases, and the collier has also enlarged. The traffic pattern of coal is mainly the bulk transportation. In this transportation system, by the oxidation exothermic reaction of the coal, methane gas is produced, simultaneously the coal quality such as coking property or heat quantity is decreased and sometimes spontaneous ignition is caused. Therefore, it is necessary to equip with a ventilator to control the concentration of methane gas and to avoid the self heating of the coal. In this study, the quantity of methane-gas produced by heating coal using an electric furnace was measured and the experiment to investigate the temperature dependency of the methane-gas generated from the coal was conducted. By using the result of the measurement, the quantity of methane-gas produced from the coal stored in the hold of a coal cargo was estimated. And, the mathematical analyses on the changing degree depend on the times of a temperature in the hold under navigation, a concentration of oxygen and a concentration of methane-gas, were conducted. 11 refs., 19 figs., 2 tabs.

  13. FY 1998 annual report on the demonstration tests for establishing load concentration controlling systems. Survey on safety of commercial systems; Fuka shuchu seigyo system kakuritsu jissho shiken 1998 nendo kenkyu hokokusho. Jjitsuyo system anzensei chosa

    NONE

    1999-03-01

    The demonstration tests are being conducted for establishing load concentration controlling systems, which directly or indirectly control load devices in residential power consumers or the like from a power supplier, as one of the DSM measures. This project is aimed at survey on the systems which support general residential consumers or the like to adequately control loads indirectly, and at clarification of technical essentials the system should have when it is actually put in service and the safety rules to be observed, thereby contributing eventual commercialization of the load concentration controlling systems. The field test results indicate that functions of a monitor set in a domestic consumer can be well operated even by inexperienced persons in handling machines, when they have some experiences. Reliability of a monitoring/controlling device, set in a domestic consumer on a trial basis, can be secured effectively by addition of an LC circuit and changing the modulation mode to FSK. The devices developed on a trial basis are found to be well serviceable for the demonstration tests. The best method for communication with the monitoring/controlling device for electric appliances in a domestic consumer is communication via a power transmission line. (NEDO)

  14. Improvements of room temperature tensile properties in cast TiAl-Fe-V-B alloy by microstructural control; Fe, V, B tenka TiAl gokin no soshiki seigyo ni yoru joon hippari tokusei no kaizen

    Nishikiori, S.; Matsuda, K. [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)

    1998-05-01

    Conditions of homogenization to follow the HIP (hot isostatic press) treatment of the TiAl alloy are tested and discussed for the optimization of the relationship between mechanical properties and the structure resulting from heat treatment. Fe, V, and B are added for improved castability to a TiAl alloy newly developed in this report, and this allows {beta} precipitation to take place which does not occur in the two-element alloy. Attention is paid to this {beta} phase, and the effect of homogenizing conditions and the amount of oxygen is investigated from the metallographic point of view. Some findings obtained are mentioned below. The {beta} phase size 30-50{mu}m emerges in the vicinity of {gamma} grains, containing more Fe and V in the solid solution state than the other structural phases. The {beta} phase rich in Fe and V concentration is high in Vickers hardness, and is supposedly brittle at room temperature. The added oxygen reduces the amount of {beta} phase precipitation for the stabilization of the {alpha} phase. The TiAl alloy containing Fe, V, and B exhibits a duplex structure after HIP treatment and the homogenization process to follow. It has a tensile strength of 550MPa, proof stress of 390MPa, and elongation of 1.80%, on the average at room temperature. 14 refs., 10 figs., 1 tab.

  15. PWM control of current source type six-phase inverter with improved waveforms by coupling reactor; Ketsugo reactor ni yori hakei kaizen sareta denryugata rokuso inverter no PWM seigyo

    Inami, K.; Danjo, M.; Kondo, Y.; Yamada, M. [Niihama Technical College, Ehime (Japan); Toki, K. [Shikoku Electric Power Co., Inc., Kagawa (Japan); Heike, J. [Shikoku Instrumentation Co. Ltd., Kagawa (Japan)

    1998-10-01

    A PWM method has been applied to a high capacity six phase current source inverter system in order to obtain sinusoidal output voltage and current. In this system, the three-phase coupling reactor is connected between the inverter output and an induction motor used as a load. Then the reactor eliminates harmonic components included in the inverter output current except 12k {+-} 1 (k=1,2,3)th order. As a result, the distortion factor of the inverter output current decreases. But the resonant circuit is composed of the capacitance of filter capacitor and the induction motor leakage inductance. Then the resonance current is superimposed on the induction motor phase currents. To solve this problem, the optimal PWM pattern is derived, so that the resonant current becomes very small. The order of the resonant frequency component of the induction motor phase current depend on the inverter frequency. Then total inverter frequency range is divided into several areas. The optimal PWM pattern is derived in each areas. As a result, the use of each optimal PWM pattern allows us to drive the induction motor, over a wide range of speed, under the condition of small distortion factor of phase currents. 5 refs., 10 figs., 1 tab.

  16. Traffic supervisory/control system for Kobe-Awaji- Naruto expressway of Honshu-Shikoku Bridge Authority; Honshu Shikoku Renrakukyo Kodan nonyu no Kobe Awaji Naruto jidoshado kotsu kansei shisetsu seigyo system

    NONE

    1999-03-01

    Toshiba delivered the traffic supervisory/control system for Kobe-Awaji-Naruto expressway of Honshu-Shikoku Bridge Authority opened in May 1998. This traffic supervisory system rapidly exactly collects and services the information on the expressway of 89km including Akashi Kaikyo bridge and O-Naruto bridge. The facility control system totally efficiently maintains and controls various facilities for lighting and air circulation of tunnels on the expressway. The previous control system transmitted road information on traffic volume and traffic congestion to offices by using specific lines and terminals, while this system with a monitoring function using intranet can easily service such information by existing PCs. (translated by NEDO)

  17. Traffic supervisory/control system for Kobe-Awaji- Naruto expressway of Honshu-Shikoku Bridge Authority. Honshu Shikoku Renrakukyo Kodan nonyu no Kobe Awaji Naruto jidoshado kotsu kansei shisetsu seigyo system

    1999-03-01

    Toshiba delivered the traffic supervisory/control system for Kobe-Awaji-Naruto expressway of Honshu-Shikoku Bridge Authority opened in May 1998. This traffic supervisory system rapidly exactly collects and services the information on the expressway of 89km including Akashi Kaikyo bridge and O-Naruto bridge. The facility control system totally efficiently maintains and controls various facilities for lighting and air circulation of tunnels on the expressway. The previous control system transmitted road information on traffic volume and traffic congestion to offices by using specific lines and terminals, while this system with a monitoring function using intranet can easily service such information by existing PCs. (translated by NEDO)

  18. FY1995 dynamically up-gradable machine based on right quality control and its life cycle support; 1995 nendo tekisei hinshitsu seigyo ni motozuku doteki seicho kikai to sono lifecycle shien

    NONE

    1997-03-01

    A method for determining part re-use and recycling strategy in product design is considered for optimal design of total product life cycle based on the concept of Right Quality Products. For this purpose, it is important to be able to estimate part deterioration status under various product usage conditions. For supporting product designers' decision making about the product life cycle in preliminary design phase, the deterioration estimation is not required to be very exact, but to generate every possible deterioration modes qualitatively. Then, based on these deterioration modes, functional behaviour of target products is simulated, and possible product failure modes can be generated. By utilizing the FMEA (Failure Mode and Effect Analysis) method, the effects of failure modes are evaluated, and the results are fed back to product designers for confirming their design in terms of total product life cycle optimization. A basic methodology is considered, and case study has been done for a mechanical assembly of a one-time use camera. The assembly consists of injection molded parts. Various CAE methods have been used for predicting possible part failures due to initial residual stress, warp, fatigue, creep, and wear. Then kinematic and dynamic analysis of mechanical assembly has been done for detecting the effect of part deterioration on mechanism movements. Several critical failure modes have been detected, and the effects of those failures have been checked by the FMEA method. (NEDO)

  19. Study on the optimal control of the ground thermal storage system in the greenhouse. Part 4; Onshitsu ni okeru taiyo energy dochu chikunetsu system ni okeru saiteki seigyo ni kansuru kenkyu

    Zheng, M [Sanko Air Conditioning Co. Ltd., Osaka (Japan); Nakahara, N [Kanagawa University, Yokohama (Japan)

    1996-10-27

    Three types of weight in both energy saving and optimum room temperature environment were changed to obtain the optimal control solution of the ground thermal storage system in a greenhouse. The relation diagram between the optimal solution of a performance function, and the state constraints and control function constraints was created in consideration of the energy term in a control function value area and the room temperature environment. As a result, the whole image of the performance function could be grasped in consideration of the energy term with inequality constraints and the room temperature environmental term in this study. The rate of a weighting factor in the performance function significantly influences the optimal solution. The influence on the optimal solution also changes when the optimal room temperature schedule differs. The influence that three types of rising algorithm exert on the convergence and converging speed was investigated. Superiority or inferiority occurs according to the space properties of a performance function. A zigzag method is most disadvantageous. The constraints can be converged to the optimal solution using an SUMT outer point method irrespective of the initial value. 6 refs., 6 figs., 4 tabs.

  20. Study of the development of high resolution sub-surface fluid monitoring system using Accurately Controlled Routine Operated Seismic Sources (ACROSS); Seimitsu seigyo shingen ni yoru chika ryutai koseido monitoring no kenkyu

    Kumazawa, M; Ogawa, K; Fujii, N; Yamaoka, K; Kumagai, H; Takei, Y [Nagoya University, Nagoya (Japan). Faculty of Science; Ishihara, K; Nakaya, m [New Energy and Industrial Technology Development Organization, Tokyo, (Japan)

    1997-02-01

    Fourier seismology capable of determining quantities related to elastic wave velocity dispersibility and non-elastic damping is under development, and studies are under way for the development of a sub-surface probing technology utilizing this seismology. It is deemed that the above-said quantities are related to the occurrence of earthquakes, behavior of sub-surface water, and migration of magma. In this method, precisely controlled sinusoidal waves are radiated and the received spectral data is subjected to cepstrum analysis, advantageous over other methods in that it achieves a high S/N ratio in a non-destructive way, facilitates deep structure analysis, and capable of monitoring changes with the elapse of time in such a structure. A newly-developed high-mobility transportable quake generator is described, which covers a wider frequency range and aims at the short-distance exploration of sub-surface conditions. Important components of the quake generator include an eccentric mass bearing capable of dealing with high-speed rotation enabling high frequency oscillation, variable mechanism for the primary moment of inertia, exciter and ground surface coupler allowing operations on a soft ground, and torque cancelling mechanism for the excitation of SH waves only. 3 figs.

  1. Development of new technologies for high quality thin film and its application to energy engineering; Hikari seigyo to sokudo senbetsu ni yoru chokinshitsu usumaku no seisaku to energy bun`ya eno tekiyo

    Hijikata, K; Inoue, T; Nagasaki, T; Suzuki, Y; Sato, I [Tokyo Institute of Technology, Tokyo (Japan); Nakabeppu, O [The University of Tokyo, Tokyo (Japan). Faculty of Engineering

    1997-02-01

    This paper describes laser irradiation and velocity selective deposition experiments for fabricating high quality thin films. For the formation of Ag thin film by vacuum deposition method, YAG laser was irradiated to atoms or clusters parallel or perpendicular to the NaCl single crystal substrate, to deposit them on the substrate. For another experiment, Ag atoms selected in the given velocity were deposited on the (001) NaCl substrate by passing the molecular beam through the velocity selector. When laser was not irradiated, the thin film showed a random structure. Epitaxial growth was accelerated by the laser irradiation. When the selective velocity was set in 353 m/s at the constant intensity of molecular beam, the diffraction pattern of the thin film showed net pattern. When the selective velocity was set in 529 m/s, a structure in which ring pattern was overlapped on the net pattern was obtained. 2 figs.

  2. Report on the investigational study on the technical trend of temperature control materials for high efficiency LED lighting use; Kokoritsu LED shomeiyo no ondo seigyo zairyo no gijutsu doko ni kansuru chosa kenkyu hokokusho

    NONE

    2001-03-01

    For the purpose of the innovative conservation of lighting use energy, a project is being promoted with the aim of developing light emitted diode (LED) and commercializing lighting use light source substituting for fluorescent light. In this study, the following were conducted: literature survey on Peltier materials as temperature control materials for high efficiency LED lighting and the making of them as elements, extraction of technical subjects in the commercialization of LED cooling use Peltier element materials, market surveys/analyses were made of the fields of application including the LED cooling use field. As a result, for the commercialization of temperature control use Peltier elements of lighting use LED, the desirable performance index is 5x10{sup -5}/K or more. Bi{sub 2}Te{sub 3} elements which are now commercially available as Peltier elements are not good in performance and have the toxicity problem. As a candidate of temperature control use materials of lighting use LED, Mg{sub 2} (Sn, Si) or clathrate system are regarded, but the point, etc. were pointed out that it is necessary to improve thermoelectric characteristics. (NEDO)

  3. FY 1999 report on the survey of the overseas geological structure, etc. Japan-Indonesia joint Tanjung Enim coal exploration project; 1999 nendo kaigai chishitsu kozo nado chosa hokokusho. Nippon Indonesia sekitan kyodo tansa Tanjung Enim project

    NONE

    2000-03-01

    The paper summed up the FY 1999 results of the survey conducted based on the agreement on the Tanjung Enim IV coal exploration project which was concluded between NEDO and Indonesia's Ministry of Mining Energy. The survey was made for an area of approximately 40km{sup 2} which is a north block of the south Arahan region, Tanjung Enim, South Sumatra, Indonesia. To grasp the succession of strata/rock facies/geological structure and the state of existence of the coal seams to be drilled, surveys were conducted on ground surface and boreholes. A total of 10 holes was test-drilled, and all the boreholes were physically logged. As a result of the survey, each of A1, A2, B, C and E coal seams was confirmed as main seams. A1, A2 and B seams are low in ash and sulfur contents with heating values of approximately 4,800 kcal/kg, C seam is high in sulfur content, and E seam is high in heating value, 6,000 kcal/kg. As coal seams for open pit mining, existence of A, B and C seams is expected which lay in the shallow part from ground surface to sea level of 0m and in the range of depth of approximately 100m. The proved coal reserves of these coals were estimated at 189 million tons. (NEDO)

  4. FY 2000 survey of the geological structure overseas, etc. Japan-China joint coal exploration - Yu Xian project; 2000 nendo kaigai chishitsu kozo nado chosa - futai shiryoshu. Nippon Chugoku sekitan kyodo tansa Yu Xian project

    NONE

    2001-03-01

    This data book summarized the proceedings and the technical report of the management committee on the Japan-China geological structure survey based on the consultation concluded between NEDO and China's bureau of coal field geology and a report meeting on the Yu Xian project. In the exploration, conducted were the boring survey of 10 boreholes, seismic survey of 2D (71 traverse lines, 180.105km) and 3D (1.5km{sup 2}), VSP (6 holes (345 shots)) and the low velocity band survey (2,072 shots). The geological structure of the area presented the syncline structure with a gentle line associated with foldings and a number of faults and was classified into the medium class or the class of a little complication in the Chinese standard. The number of the faults confirmed in this exploration totaled 57. Coal reserves by coal seam were 157.22 million tons at No. 5 seam and 102.57 million tons at No. 1 seam. The total amount of the two seams was 79.1% of the total coal amount in all area. The coal quality of Nos. 1 and 5 was brown coal - flame coal in the Chinese classification, and subbituminous coal B - subbituminous coal C in the ASTM classification. The coal, however, cannot be used for process raw coal. There is a technical potentiality of the fixed bed pressurized gasification. (NEDO)

  5. Optimization of dynamic source depth for seismic surveys. Part 7; Dynamite shingen no hasshin shindo no saitekika ni tsuite (hyoso kozo no suitei (kusssetsuho jishin tansa oyobi denki denjiho tansa)). 7

    Tanaka, H; Murayama, R; Mitsuhata, Y; Ishikawa, H [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1996-05-01

    For the improvement of quality of data collected by reflection aided seismic exploration using dynamite as the seismic source, information has to be collected about the surface layer structure before the charge depth is determined. For this purpose, refraction, electric, and electromagnetic exploration methods were tried. In the refraction method, an impactor was used as the seismic source. In the records, the surface wave prevails because vibration was generated on the surface. Analysis was made by the use of the initial travel time tomography. In the electric exploration, a double pole array was used to measure resistivity. The measured data was subjected to a fully automatic inversion for analysis. As the result, it was disclosed that it was useful to know the deep-level structure directly by use of tomographic methods in refraction seismic exploration so as to find the optimum charge level. Furthermore, about the electric and electromagnetic exploration techniques, it was found that these methods can be applied making use of resistivity to the evaluation of groundwater saturation. 7 refs., 5 figs., 3 tabs.

  6. Convenient method for estimating underground s-wave velocity structure utilizing horizontal and vertical components microtremor spectral ratio; Bido no suiheido/jogedo supekutoru hi wo riyoshita kan`i chika s ha sokudo kozo suiteiho

    Yamamoto, H; Yoshioka, M; Saito, T [Iwate University, Iwate (Japan). Faculty of Engineering

    1996-05-01

    Studies were conducted about the method of estimating the underground S-wave velocity structure by inversion making use of the horizontal/vertical motion spectral ratio of microtremors. For this purpose, a dynamo-electric velocity type seismograph was used, capable of processing the east-west, north-south, and vertical components integratedly. For the purpose of sampling the Rayleigh wave spectral ratio, one out of all the azimuths was chosen, whose horizontal motion had a high Fourier frequency component coherency with the vertical motions. For the estimation of the underground S-wave velocity structure, parameters (P-wave velocity, S-wave velocity, density, and layer thickness) were determined from the minimum residual sum of squares involving the observed microtremor spectral ratio and the theoretical value calculated by use of a model structure. The known boring data was utilized for the study of the S-wave velocity in the top layer, and it was determined using an S-wave velocity estimation formula for the Morioka area constructed using the N-value, depth, and geological classification. It was found that the optimum S-wave velocity structure even below the top layer well reflects the S-wave velocity obtained by the estimation formula. 5 refs., 6 figs.

  7. Estimation of shallow ground structure using short-period microtremors array observation. Results in Morioka area; Tanshuki bido no array kansoku ni yoru senbu chika kozo no suitei. Moriokashiiki ni okeru kekka

    Yamamoto, H; Obuchi, T; Saito, T; Iwamoto, K [Iwate University, Iwate (Japan). Faculty of Engineering; Yoshida, Y [OYO Corp., Tokyo (Japan)

    1996-05-01

    The velocity structure in the shallow ground structure was evaluated by observing microtremors of 1-10Hz in the Morioka City area. Plural wave sections free of vehicle noises or the like were selected out of the collected microtremor records, and the Fourier spectrum and coherence were calculated. Records sufficiently supporting the correlation between seismographs were chosen for the analysis. The phase velocity was calculated for each observation spot from plural array records by use of the F-K spectrum. The underground velocity structure was estimated by the inversion process using the matrix method. In this method, an early model was built on the basis of the observed phase velocity and the optimum underground velocity structure was determined by alternately performing two inversion processes: one for the case wherein the S-wave velocity is the sole parameter and the other for the case wherein the layer thickness is the sole parameter. As the result, a shallow underground velocity structure, which has good agreement with the available boring data in the Morioka City area, was successfully estimated, verifying the validity of this method. 4 refs., 7 figs.

  8. On the fault system and basement structure in and around the epicentral region of the 1995 Hyogo-ken Nanbu earthquake; 1995 nen Hyogoken nanbu jishin shingen shuhen no danso kiso kozo ni tsuite

    Yokokura, T; Kano, N; Yamaguchi, K; Miyazaki, T [Geological Survey of Japan, Tsukuba (Japan); Ikawa, T; Ota, Y; Kawanaka, T [Japex Jeoscience Institute, Tokyo (Japan)

    1996-05-01

    A reflection elastic wave seismic survey was carried out as part of the emergency survey of active faults in relation with the Hyogo-ken Nanbu Earthquake. This paper presents an interim report on the survey covering a wide area with deep structure as the survey object. The paper mentions that processing the survey data has been nearly completed, and is in the stage of making analyses and interpretations of the result of the processing, and that the survey was an attempt of making a unified survey over land areas, shallow sea areas, and seas by setting twelve traverse lines in and around the epicenter region. The paper also introduces briefly what has been found on hypocenters used, vibration receivers, vibration intervals, and CPD intervals, and on shapes of faults, particularly the continuity (the relationship of the Ashiya fault, Koyo fault and Osaka bay fault with the above two faults, branching of the Osaka bay fault, faults between the Wada promontory fault, Awaji Island and the Osaka bay fault, the fault off the east coast at the central part of Awaji Island, the Shichiku fault on the west coast of Awaji Island, and the basement fault). Mention is given also on the basement structure chart of the Osaka bay prepared preliminarily for the purpose of reference. 2 figs.

  9. FY 1997 report on the study on the formation condition of hetero-structure of single-crystalline semiconductor thin films; 1997 nendo chosa hokokusho (tankessho no handotai usumaku hetero kozo no keisei joken ni kansuru kenkyu)

    NONE

    1998-03-01

    Since ion implantation causes material degradation by formation of crystalline defects, and hydrogen embrittlement deteriorates material strength, reduction of such defects has been positively studied. Study was made on a new active application of hydrogen separation into ion implantation defects. After H ion implantation of a proper depth into single-crystalline Si and SiC and successive annealing, single-crystalline films of sub-micron to several micron thick were obtained by hydrogen-induced delamination at the implantation depth due to hydrogen embrittlement in crystalline defects. The implantation depth is dependent on implantation energy. H atom forms (111) face defect through connection with dangling bond of crystalline defects. This crystal face defect forms a delamination plane through (100) face cleavage. This hydrogen embrittlement delamination by ion implantation is applicable to production of light-weight high-efficiency single-crystalline Si solar cells, and large single-crystalline SiC wafers as new resource saving process. 33 refs., 19 figs., 2 tabs.

  10. Report on the FY 1992 basic survey for industrialization related to the survey of overseas geological structure (Embalut West area, Indonesia); 1996 nendo kaigai chishitsu kozo nado chosa ni kakawaru kigyoka kiso chosa hokokusho (Indonesia Embalut nishi chiku)

    NONE

    1993-03-01

    The paper reported the FY 1992 basic survey for the coal mine development/industrialization in the Embalut West area of Indonesia. The geological structure in the survey area is under the Loa Haur Syncline which lies approximately north and south to the west of the area, and is regarded as the stabilized structure having no faults. The three beams from the upper part, S14, S13 and S12, are assumed to be the coal seams to be drilled. The average seam thickness is 1.17, 2.35 and 3.09m, respectively, and the continuity is good. In S14 beam, which is thin, it is difficult to mine coal using equipment. The theoretical minable reserve of the three coal seams is 18,859,000 tons. The recoverable coal reserve is 12,258,000 tons at a mining recovery of 65%. In case of annual production of 0.4 million tons, it is possible to mine more than 30 years. The coal is classified into a subbituminous coal-brown coal rank of the JIS coal classification. It is high in water content and medium in heating value, but is an environmental protection type with low ash and low sulfur content. In the case of mines in the Mahakam River basin, barge transport is indispensable. For sea transportation, the following should be studied in the light of the international price competition: reinforcement of shipping facilities on Mahakam River, increase in barge size, joint use of Balikpapan Coal Center, etc. (NEDO)

  11. Acoustic excitation of diffusion flames with coherent structure in a plane shear layer.; Effects of acoustic excitation on combustion properties; Soshiki kozo wo tomonau sendan kakusan kaen no onkyo reiki.; Onkyo reiki ni yoru nensho tokusei no henka

    Ishino, Y.; Kojima, T.; Oiwa, N.; Yamaguchi, S. [Nagoya Institute of Technology, Nagoya (Japan)

    1993-10-25

    This paper reports on experiments for acoustic excitation of plane shear structured flame. Flows of air separated into the higher velocity side and the lower velocity side by a partition on the center of a flow path merge at the measuring point to form a mixed layer with coherent structure. Fuel is supplied to this mixed layer with the flows so adjusted that the generated flame will attach to the partition on the lower velocity side. Acoustic excitation (at a sound pressure level of 100 dB to 120 dB) is performed in a speaker fitted on a wall on the higher velocity side. The paper mentions the results of the experiments as follows: the acoustic excitation produces such changes to diffusion flame in the plane shear layer as shorter flame and blue flame combustion and clarification of flame structures; as seen from spectral characteristics of temperature change in the flames, a flame acoustically excited strongly presents remarkable improvements in periodicity of the structure; as seen from sound pressure distribution in the flow direction at the measuring point, the flame zone of the flame acoustically excited strongly is positioned at the middle of the node and loop of a standing wave. 6 refs., 9 figs., 1 tab.

  12. FY 1999 report on the results of the research cooperative project on the research cooperation in promotion of reforming the structure of the Asian economy; 1999 nendo Asia keizai kozo kaikaku sokushin kenkyu kyoryoku

    NONE

    2000-05-01

    This project aims at making the best possible of vitality of private companies in Asia, producing the technical results which directly connect to commercialization in a short term, and leading them to reinforcement of developmental ability of their own technologies in the country. In the first fiscal year, eight projects were carried out in five ASEAN countries, and the developmental results with high potential of commercialization were obtained. The names of project are as follows: 1) development of Thai material type seasoning (Thailand), 2) development of electronic ceramics sintering technology by the domestic production (Thailand), 3) study of small-/medium-scale activated coal production technology for depopulated areas in Indonesia (Indonesia), 4) development of a fiber material procurement supply chain management system connecting among Asian countries by Web, 5) development of large plastic formed products adopting gas injection blow molding method (The Philippines), 6) joint R and D on the increase in power transmission capacity using the existing overhead transmission line in Malaysia, 7) development of local site application type asbesto substituting construction materials (Vietnam), 8) low temperature storing technology for Japanese species rice produced in Vietnam (Vietnam). All the projects were proposed by Japanese companies. (NEDO)

  13. Joint stiffness identification of body structure using neural network. Jointed part composed of 2 beams; Neural network ni yoru shatai kozo no ketsugo gosei dotei. Buzai 2 hon kara naru ketsugobu no baai

    Okabe, A; Tomioka, N [Nihon University, Tokyo (Japan)

    1997-10-01

    The method to obtain a joint stiffness value from displacements of jointed part using hierarchical neural networks in case of a jointed part composed of two beams were proposed. First, the sample data of displacements of jointed part vs. joint stiffness are prepared as learned data. Second, the relations between displacements of jointed part and joint stiffness are constructed from these learned data using a hierarchical neural networks. It was found that the value of joint stiffness can be obtained from displacement of jointed part by the trained neural network. 4 refs., 9 figs., 2 tabs.

  14. Report for fiscal 1998 on basic commercialization survey related to geological structure surveys in overseas countries (Manguerra, the Philippines); 1998 nendo kaigai chishitsu kozo nado chosa ni kakawaru kigyoka kiso chosa (Philippines Manguerra) hokokusho

    NONE

    1999-03-01

    Commercialization survey was performed on the mines in the Manguerra district in the Philippines by means of geological structure surveys. The site surveys included geological and test drilling surveys, and those on conditions for developing underground mining mines, and infrastructures. The geological survey area spread out about 5 km{sup 2}, two test wells were drilled (to depths of 330 m and 290 m), trench survey was performed on 58 locations, and coal sample collection and analysis were carried out on eight locations. Furthermore, surveys were extended to the Manguerra mine operating status, on-the-ground facilities, roads for transportation, marketing, and related laws and regulations. As a result of the surveys, the Manguerra district was suggested of frequent sea water inundation into the coal field, leading to a view that the district is unstable from the viewpoint of development of coal beds. However, samples collected from the existing mining area indicated to have less water content and ash and high calorific power. The coal has high product value. The result of coal quantity calculation indicated 320122 tons as the total of defined and estimated quantity. The great depth mining plan was prepared from the viewpoints of actual yield, productivity, safety aspects, technological enhancement, and suppression of additional investments to minimum. (NEDO)

  15. FY 1999 Report on overseas geological structure surveys. Joint Japan-China Yu Xian exploitation project (Attachments); 1999 nendo kaigai chishitsu kozo nado chosa futai shiryo. Nippon Chugoku sekitan kyodo tansa Yu Xian project

    NONE

    2000-03-01

    This reports provides the attachments for the report JN0041264. The contents include (1) minutes of the fourth steering committee, (2) technical reports presented to the fourth steering committee (I: report on FY 1998 joint exploitation works, and II: report on FY 1999 joint exploitation works), (3) minutes of the fifth steering committee, and (4) technical reports presented to the fifth steering committee (I: report on FY 1999 joint exploitation works, and II: report on planned FY 2000 joint exploitation works). The item (1) includes approval of the reports on FY 1998 and 1999 joint exploitation works. The item (2)-I report includes seismic exploitation test works, observation work results and quality evaluation thereof; drilling exploitation work results, quality evaluation thereof, exploitation results and evaluation thereof; exploitation results and evaluation thereof; and proposals. The item (2)-II report includes seismic exploitation, drilling exploitation, and man-hours of the workers from the both countries. The item (3) includes approval of the reports on FY 1999 joint exploitation works and planned FY 2000 joint exploitation works. The (4)-I report includes seismic exploitation work results and evaluation thereof, seismic exploitation test works, drilling exploitation work results, quality evaluation thereof, exploitation results and evaluation thereof, and proposals for the future works. The (4)-II report includes seismic and drilling exploitation plans, and numbers and periods of the workers from the both countries. (NEDO)

  16. Report on the FY 1993 basic survey for industrialization related to the survey of overseas geological structure (Tebulan East area, Malaysia); 1993 nendo kaigai chishitsu kozo nado chosa ni kakawaru kigyoka kiso chosa (Malaysia Tebulan higashi chiku) hokokusho

    NONE

    1994-03-01

    The survey was conducted based on 'Scope of work for detailed coal exploration in the Tebulan East block of the Merit Pila coal field, Sarawak, Malaysia' concluded on June 19, 1993 between NEDO and Global Mineral which owns the mining right. The field survey was for the geological survey, survey of conditions of open pit mining, and infrastructure survey. The confirmed/estimated coal amount totaled 22,65 million tons in 4 coal seams. The all sulfur content is low, approximately 0.12%. The heating value is 5,820 kcal/kg. As to the infrastructure, various conditions are good for transportation, shipping facilities, etc. from mine site to truck transport/barge transport/external route shipping. The drilling was planned to be made by open pit mining by the truck and shovel system, and the scale of the planned production was 0.3 million tons. The ash is low in amount, and there was no coal preparation. Clean coal is produced by crushing, sieving and washing. Attached were the borehole log (JN9940782), route map, and trench sketch (JN9940783). (NEDO)

  17. Investigation on the dynamic response and strength of very long floating structures by beam modeling on an elastic foundation; Dansei shishojo no hari model ni yoru chodai futai kozo no doteki tawami kyodo tokusei ni kansuru kosatsu

    Tsubogo, T.; Okada, H. [University of Osaka Prefecture, Osaka (Japan). Faculty of Engineering

    1997-08-01

    A very large floating structure was replaced with the beam on an elastic foundation to examine the response characteristics in waves. Another evidence was regularly and numerically given for the basic characteristics of a very large floating body Suzuki found. New information was also obtained. The frequency response is mainly classified into a wave number control area and proper frequency control area when buoyancy elasticity exists. When the buoyancy structure is long and flexible, the proper frequency becomes continuous and the frequency control area becomes a resonance area. In the wave number control area, the Suzuki`s characteristic wave number becomes a control parameter, and various characteristic values are indicated by characteristic wave numbers. The response in the wave number control area becomes quasi-static when the distribution mass of buoyancy is fully small. The design in which the distribution mass of buoyancy is fully large must be avoided. In the displacement amplitude, the mass on the free end is severest. The proper frequency of vertical vibration relatively moves to the high-frequency side when buoyancy is considered as an elastic foundation. Attention must be thus paid to the proper frequency of vibration on the horizontal surface. 9 refs., 12 figs., 3 tabs.

  18. Fiscal 1998 overseas geological structure survey. Japan-China joint coal survey Mei-Xian project; 1998 nendo kaigai chishitsu kozo nado chosa hokokusho. Nippon Chugoku sekitan kyodo tansa Mei-Xian project

    NONE

    1999-03-01

    Japan-China joint coal survey was made through seismic prospecting by Japanese group and drilling prospecting by Chinese group. Mei-Xian mine property includes coal seams of the Jurassic period, and is covered with the quaternary period stratum without any coal seam. The base of the quaternary period stratum exists at depth of 50-400m, while the coal seams at depth of 300-700m. Among 11 existing seams, the 1st and 5th seams are main objects for prospecting. The 5th seam of 0.2-8.96m (2.95m in average) thick is the most expected important one, distributing all over the mine property. The 5th seam also has branch seams spreading over 2.5km from east to west and 1.2km from south to north in the center part of the mine property. The 1st seam of 0-8.62m (2.90m in average) thick is most thick in the south part of the mine property. The theoretical amount of coal deposits in the whole coal seam is estimated to be nearly 290,000,000t by Chinese group (nearly 50% of it in the 5th seam). That is also estimated to be nearly 346,000,000t by Japanese group (155,000,000t in the 5th seam). Both 1st and 5th seams are composed of sub-bituminous coal. (NEDO)

  19. 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

    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.

  20. Distribution of strong ground motion from uppermost crustal structure. Comparison with disaster from the Hyogo-ken Nanbu Earthquake; Yaya fukai chika kozo no henka ni yoru kyoshindo bunpu. Hyogoken nanbu jishin ni yoru higai bunpu tono hikaku

    Zhao, Z; Okubo, R [Kawasaki Geological Engineering Co. Ltd., Tokyo (Japan)

    1997-10-22

    It was intended to elucidate characteristics of distribution of damages caused by an earthquake which occurs directly below an urban area. Therefore, numerical simulation using the pseudo-spectral method was performed on characteristics of seismic wave propagation in non-homogenous media composed of rock beds and sediment beds, and of seismic wave amplitudes on ground surface. The simulation has utilized information on underground structures disclosed by using the latest physical exploration method. The underground structure model assumed a two-dimensional model hypothesizing presence of upper, middle and lower beds in the Osaka bed group on granite, using as reference the information on S-wave velocity underground structure revealed by the microtremor exploration method. With an objective to elucidate characteristics of distribution of collapse ratio in the area from 8-chome, Okamoto, Higashinada Ward, Kobe City to 2-chome of Sakanasaki Minamicho, as damages suffered from the Hyogo-ken Nanbu Earthquake, a simulation has been performed varying the structure model based on the results derived by the microtremor exploration method and the reflection method. As a result, it was shown that the characteristics of the maximum amplitude distribution of displacement of ground surface, velocity and acceleration agree well with those of the collapse ratio distribution, and that the simulation using the pseudo-spectral method is an effective means to analyze the ground surface collapse ratio distribution. 5 refs., 3 figs.

  1. Characterization of subsurface structure at Soultz HDR field by the triaxial drill-bit VSP; Sanjiku drill bit VSP ho ni yoru Soultz HDR field no chika kozo suitei

    Asanuma, H; Niitsuma, H; Liu, H [Tohoku University, Sendai (Japan); Baria, R

    1997-10-22

    Triaxial drill-bit VSP (vertical seismic profiling) method is applied to the Soultz HDR (hot dry rock) field, France, where an artificial reservoir is provided inside the bedrock, and the structure inside the rockbed is estimated. An elastic wave detector is installed in the rockbed in this field, and data are acquired having frequency components up to approximately 1kHz. The trajectory of particles due to excavation noise is analyzed, and it is found that the drill-bit is the primary source of noise during excavation and that the SV-wave dominates in the emitted noise. Estimating the subsurface structure aided by the principle of the triaxial drill-bit VSP method, the lower part is detected of the artificial reservoir formed by hydraulic fracturing. As is reported in this paper, when the principle of the subject VSP method is considered, it has to be said that it is quite difficult to employ this method to extensively estimate the subsurface structure on the basis of measurements of the inside of the rockbed. There is a plan for a future study of a technique for accurately and extensively estimating subsurface structures by use of a small number of sensors. 8 refs., 7 figs.

  2. Estimation of a subsurface structure by using shallow seismic engineering exploration system with multiple function (SWS); Takino danseiha tansa sochi (SWS) ni yoru senbu chika kozo tansa ni tsuite

    Liu, Y [Beijing Shuidian Research Institute of Geophysical Surveying, Beijing (China); Ling, S [Nihon Nessui Corp., Tokyo (Japan); Okada, H [Hokkaido University, Sapporo (Japan)

    1997-10-22

    The Beijing Shuidian Research Institute of Geophysical Surveying has performed ocean seismic exploration in the area where the Fujian Pingtan bridge was planned to be constructed. The elastic wave exploration device is of a multi-functional type. The device has functions of acquiring, processing and analyzing data in seismic exploration using the reflection method, and can visualize subsurface conditions at the same time as performing the exploration. The planned bridge building area spans over a sea area of about 3500 m long with water depths from several meters to 30 meters. The foundation bed consists of dacite lithologic tuff and granodiorite. The seal level varies from 4.0 m to 4.8 m between high and low tides. According to the result of other measurements, the elastic wave propagation velocities of the sea water were found from 1475 to 1485 m/s, and the elastic wave propagation velocities at the surface bed of the sea bottom were from 1550 to 1700 m/s. The exploration used a workboat which moves at a constant speed while maintaining the offset between a transmitting source and a receiving source constant, executing vibration transmitting, receiving and recording all on the sea. The result of the exploration revealed that neither obstacles such as sunken ships nor marks of occurrence of ocean bottom landslides were present. 1 ref., 5 figs.

  3. Study on deep crustal resistivity structure using wideband magnetotellurics. In the case of eastern part of Hokkaido, Japan; Kotaiiki MT ho wo mochiita shinbu chikakuhi teiko kozo no kenkyu. Hokkaido Tobu chiiki ni tsuite

    Sato, H; Tanimoto, K; Maeda, T; Nishida, Y [Hokkaido University, Sapporo (Japan); Takada, M; Tamura, M [Hokkaido University, Sapporo (Japan). Research Center of Earthquake Prediction; Ogawa, Y [Geological Survey of Japan, Tsukuba (Japan); Nagao, T [Tokai Univ., Tokyo (Japan)

    1997-10-22

    Wide-range MT (magnetotelluric) observation is conducted to collect knowledge of the middle and lower parts of the crust of the above-named region, about which but a little information is available, for comparison with information about Kurile islands arc tectonics. Three traverse lines crossing the Kurile islands roughly in the north-south direction and two lines running from east to west are used, with the observation stations totalling 48. The distance between observation stations is 7-8km on the Nijibetsu line, and approximately 15km on the Nakashibetsu and Akan lines. A very wide frequency range of 320-0.0005Hz is used for measuring, and these results in detection with success of resistivity structure details from shallow to deep layers in the crust. The collected data are analyzed, and it is estimated that the northern and central parts have a high-low-high three-layer structure while the southern part has a low-high two-layer structure. Since the data obtained at observation stations at the middle of the lines, in particular, have an extremely low apparent value of several ohm/m at about 1Kz in the absence of splits in the TM (transverse magnetic) and TE (transverse electric) modes, it is inferred that the low-resistivity layer is considerably thick and is distributed rather uniformly. 13 refs., 5 figs.

  4. Formation of porous carbon materials from phenol-formaldehyde resin and their adsorption characteristics; Fenoru/horumu arudehido jushi kara erareta takosei tanso zairyo no kogeki kozo to sono kyuchaku tokusei

    Oda, H.; Tojo, R.; Nomura, A. [Kansai Univ., Osaka (Japan). Faculty of Engineering

    1997-05-15

    In this study, preparation of porous adsorbent with developed micro-pores and meso pores and open pores on the external surface is tried. Namely, PFR-sawdust activated carbon is produced by carbonizing the PFR-sawdust composite materials obtained by adding KOH-immersed wood powders in the preparation of phenol-formaldehyde resin(PFR). Additionally, as a comparative test, KOH is added directly into PFR and PFR-KOH activated carbon is prepared by carbonization. Simultaneously with the clarification of the difference of pore structure between said two kinds of activated carbons, a various kinds of adsorbing tests are carried out to evaluate the adsorbing effects thereof. PFR-KOH activated carbon having a high specific surface area of 3500 m{sup 2}/g and a large number of micro-pore and meso pores is extremely effective in absorption of gas phase while the yield and particle strength are low. PFR-sawdust has a specific surface area of 1500 m{sup 2}/g which is the same level of activated carbons on the market, but the yield thereof is twice as that of PFR-KOH. 9 refs., 5 figs., 3 tabs.

  5. 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

    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.

  6. Thermal relaxation of bituminous coal to improve donation ability of hydrogen radicals in flash pyrolysis; Sekitan kozo kanwa ni yoru suiso radical kyoyo noryoku no kojo wo mezashita netsubunkai mae shori

    Mori, T.; Isoda, T.; Kusakabe, K.; Morooka, S. [Kyushu University, Fukuoka (Japan). Faculty of Engineering; Hayashi, J. [Hokkaido University, Sapporo (Japan). Center for Advanced Research of Energy Technology

    1996-10-28

    In terms of coal conversion reaction, the behavior of bituminous coal heated beyond a glass transition point was examined on the basis of pyrolyzed products, and the effect of an increase in proton mobility on promotion of coal decomposition was evaluated. In experiment, after Illinois bituminous coal specimen was heated up to a specific temperature in N2 or He gas flow at a rate of 5K/min, the specimen was directly transferred to a pyrolyzer for instantaneous pyrolysis. As the experimental result, the glass transition temperature of the Illinois coal specimen was calculated to be 589K from a differential scanning calorimetry (DSC) profile. From the pyrolysis result of the Illinois coal specimen heated up to 623K, the char yield decreased by 3kg as compared with that of the original coal, while the tar yield increased by 4kg up to 27kg per 100kg of the original coal. This tar increase was larger than that of cooled coal. These results suggested that the donation of hydrogen radicals to coal fragments is improved with an increase in proton mobility. 4 refs., 4 figs., 1 tab.

  7. Studies of initial stage in coal liquefaction. 4. Radical formation and structural change with thermal decomposition of coal; Ekika hanno no shoki katei ni kansuru kenkyu. 4. Netsubunkai ni tomonau radical seisei kyodo to kozo henka

    Kanaji, M.; Kaneko, T.; Shimasaki, K. [Nippon Brown Coal Liquefaction Co. Ltd., Tokyo (Japan); Kumagai, H.; Chiba, T. [Hokkaido University, Sapporo (Japan). Center for Advanced Research of Energy Technology

    1996-10-28

    In relation to coal liquefaction reaction, the effect of the coexistence of transferable hydrogen (TH) from process solvent on reduction of radical concentration and the effect of pre-heat treatment on average structure of coals were studied. In experiment, change in radical concentration with temperature rise was measured using the system composed of Yallourn coal and process solvent. The results are as follows. Process solvent with a wide boiling point range of 180-420{degree}C is effective in suppressing an increase in radical concentration even at higher temperature. The effect of hydrogen-donating solvent increases with TH. It was also suggested that high-boiling point constituents in solvent stabilize radicals even over 400{degree}C by vapor phase hydrogenation. The experimental results of pre-heat treatment are as follows. Although the conversion improvement effect of TH is equivalent to that of the model solvent, TH tends to produce soluble products with smaller ring numbers. It was thus suggested that pre-heat treatment in process solvent is effective to inhibit retrogressive reactions. 6 refs., 5 figs., 1 tab.

  8. Fiscal 2000 survey of geological structures overseas. Exchange of engineers with Indonesia (Coal mining technology); 2000 nendo kaigai chishitsu kozo nado chosa hokokusho. Gijutsusha koryu jigyo (tanko gijutsu bun'ya) Indonesia

    NONE

    2001-03-01

    Indonesia rich in coal resources consumed 70-million tons of coal in 1999, which covered 17% of its total energy demand. It is estimated that as much as 120-million tons will be produced in 2005, and it is expected that underground mining will increase. Under such circumstances, Indonesia strongly desires that Japan's underground mining technologies be transferred to Indonesia. For the transfer of technologies especially involving production control and management out of Japan's underground mining technologies, Japan dispatched engineers to Indonesia under a mining engineer exchange project, and received and trained Indonesian engineers. Under the engineer exchange project, five engineers were dispatched to Indonesia and gave lectures and on-site training in the period July 9 through August 5, 2000. Japan received seven engineers, who were given lectures and training at the Ikeshima mining field of Matsushima Coal Mining Company in the period November 12 through December 12, 2000. (NEDO)

  9. FY 2000 report on the survey of the overseas geological structure. Japan-China joint coal exploration - Yu Xian project; 2000 nendo kaigai chishitsu kozo nado chosa hokokusho. Nippon Chugoku sekitan kyodo tansa Yu Xian project

    NONE

    2001-03-01

    The geological survey was carried out which is needed for coal mine design in the Yu Xian coal mine area, Yu Xian coal field, Hebei province, China. The term of survey was 5 years from 1996 to 2000. Activities are mainly for seismic survey and boring survey. Japan was in charge of the seismic survey, and China in charge of the boring survey. Both attained the goal. The results of the activities were summed up in the following 7 items: 1) outline of the survey; 2) general investigation; 3) state of the exploration related materials/machinery; 4) field survey; 5) items of survey; 6) results of the survey; 7) conclusion. In 6), the geological analysis, coal quality survey and coal amount survey were conducted. In the geological analysis, analyzed were the succession of strata, geological structure, and the situation of existence of coal seams. In 7), the following were made clear: geological structure of the survey area, coal seam, coal quality, hydrological geology, other conditions of drilling technology, and coal amount. The coal amount was 328.34 million tons in a total of A/B/C class coals. The total coal amount of Nos. 1 and 5 coal seams was 259.79 million tons, which was 79.1% of the total coal amount in all area. The average thickness of Nos. 1 and 5 coal seams, which are the main minable coal seams, was 3.10m and 2.66m, respectively. (NEDO)

  10. On the calculation of scattered fields by 3-D structure in the time-domain electromagnetic (TDEM) method; Jikan ryoiki denjiho ni okeru sanjigen kozo kara no sanranba no keisan ni tsuite

    Murakami, Y [Geological Survey of Japan, Tsukuba (Japan); Saito, A; Oya, T [Mitsui Mineral Development Engineering Co. Ltd., Tokyo (Japan)

    1996-10-01

    This paper describes the calculation method of 3-D underground structures in TDME method which measures only field components. Recently, FDTD method was developed as calculation method in time domain difference calculus, and the forward analysis accuracy of 3-D fields was rapidly improved. The survey results using a large-scale loop (600m{times}360m) were numerically analyzed by FDTD method. 16 measuring lines were prepared in both X and Y directions, and measuring points were prepared on intersection points of the measuring lines. Since signal current is staircase one, step and impulse responses of the ground were determined by calculating magnetic field and its time differentiation. The rectangular body (120m{times}120m{times}100m) of 0.2S/m in conductivity (5 ohm m in resistivity) was installed 160m under the ground as 3-D resistivity anomaly. The ground of 0.01S/m (100 ohm m) was assumed. Time variation in horizontal magnetic field vector plot of impulse responses of the uniform ground could be observed. The position of the resistivity anomaly could be also determined from spacial differentiation of magnetic field of grid pattern measuring points. 1 ref., 6 figs.

  11. Fault-related-folding structures and reflection seismic sections. Study by seismic modeling and balanced cross section; Danso ga kaizaisuru shukyoku kozo no keitai to jishin tansa danmen. 2. Seismic modeling oyobi balanced cross section ni yoru study

    Tamagawa, T; Matsuoka, T [Japan Petroleum Exploration Corp., Tokyo (Japan); Tsukui, R [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-05-27

    It occasionally happens that there exists a part where reflection near the thrust is not clearly observed in a thrust zone seismic survey cross section. For the effective interpretation of such an occurrence, the use of geological structures as well as the reflected pattern is effective. When the velocity structures for a fold structure having a listric fault caused anticline (unidirectionally inclined with a backlimb, without a forelimb) and for a fault propagation fold are involved, a wrong interpretation may be made since they look alike in reflection wave pattern despite their difference in geological structure. In the concept of balanced cross section, a check is performed, when the stratum after deformation is recovered to the time of deposition, as to whether the geologic stratum area is conserved without excess or shortage. An excess or shortage occurs if there is an error in the model, and this shows that the fault surface or fold structure is not correctly reflected. Positive application of geological knowledge is required in the processing and interpreting of data from a seismic survey. 6 refs., 6 figs.

  12. Fault-related-folding structure and reflection seismic sections. Construction of earth model using balanced cross section; Danso ga kaizaisuru shukyoku kozo no keitai to jishin tansa danmen. 1. Balanced cross section wo mochiita chika model no kochiku

    Matsuoka, T; Tamagawa, T [Japan Petroleum Exploration Corp., Tokyo (Japan); Tsukui, R [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-05-27

    Pre-stacking depth migration treatment is studied for the estimation of the fold configuration from seismic survey cross sections. The estimation of a velocity structure is necessary for the execution of such treatment, and the utilization of structural-geological knowledge is required for its interpretation. The concept of balanced cross section in relation to the fault-bend fold constructs a stratum structure model under conditions that the deformation during fold and fault formation is a planar strain, that there is no change in volume due to deformation, and that a fold is a parallel fold. In addition to the above geometric and kinetic approach, there is another fold formation process simulation model using a Newtonian fluid for study from the viewpoint of dynamics. This simulation stands on the presumption that the boundary contains a ramp that had been in presence before fold formation and that an incompressible viscous matter is mounted on the top surface. The viscous matter flows and deforms for the formation of an anticline on the ramp. Such enables the reproduction of a fault-bend fold formation process, and helpful discussion may be furthered on the dynamic aspect of this simulation. 5 refs., 4 figs.

  13. Estimation of subsurface structures in a Minami Noshiro 3D seismic survey region by seismic-array observations of microtremors; Minami Noshiro sanjigen jishin tansa kuikinai no hyoso kozo ni tsuite. Bido no array kansoku ni yoru suitei

    Okada, H; Ling, S; Ishikawa, K [Hokkaido University, Sapporo (Japan); Tsuburaya, Y; Minegishi, M [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-05-27

    Japan National Oil Corporation Technology Research Center has carried out experiments on the three-dimensional seismic survey method which is regarded as an effective means for petroleum exploration. The experiments were conducted at the Minami Noshiro area in Akita Prefecture. Seismometer arrays were developed in radii of 30 to 300 m at seven points in the three-dimensional seismic exploration region to observe microtremors. The purpose is to estimate S-wave velocities from the ground surface to the foundation by using surface waves included in microtremors. Estimation of the surface bed structure is also included in the purpose since this is indispensable in seismic exploration using the reflection method. This paper reports results of the microtremor observations and the estimation on S-wave velocities (microtremor exploration). One or two kinds of arrays with different sizes composed of seven observation points per area were developed to observe microtremors independently. The important point in the result obtained in the present experiments is that a low velocity bed suggesting existence of faults was estimated. It will be necessary to repeat experiments and observations in the future to verify whether this microtremor exploration method has that much of exploration capability. For the time being, however, interest is addressed to considerations on comparison with the result of 3D experiments using the reflection method. 4 refs., 7 figs.

  14. Estimation of underground structures in the Osaka-Kobe area by array-network observations of microtremors; Bido no array kansoku ni yoru Osaka-Hyogo chiiki no chika kozo no suitei

    Okada, H; Ishikawa, K; Ling, S [Hokkaido University, Sapporo (Japan); Sasabe, K [Ministry of Construction, Tokyo (Japan)

    1997-05-27

    Microtremor observations have been carried out with an objective to estimate underground structures including the foundation depth in the Osaka-Kobe area which has been greatly damaged by the Hyogoken-nanbu earthquake in 1995. Different organizations have made seismic surveys and boring investigations in this area, by which elucidation has been made on the underground structures. The present observations are intended to identify S-wave velocity distribution in a wide area from the ground surface to the foundation, which is difficult to be verified by using conventional surveys and investigations. Methods to detect surface waves which are contained in microtremors include the frequency-wave number method (the F-K method) and the spatial autocorrelation method (the SPAC method). The SPAC method can estimate phase velocities of longer waves for the size of an array than with the F-K method, and is more advantageous in estimating ground structures at greater depths. S-wave velocity structure was estimated down to the foundation rocks existing in depths of about 0.5 to 2.0 km. For estimating the phase velocities in Raleigh waves, the SPAC method and the expanded spatial autocorrelation method were used. The underground structures thus derived showed a good agreement with the results of explorations using other methods. 8 figs., 1 tab.

  15. Relationship between surface structure of silicon containing steel and adhesion of hot dip galvanized coating; Si gan'yu koban no hyomen kozo to yoyu aen mekki micchakuseino kankei

    Tsuchiya, Y.; Hashimoto, S.; Ishibashi, Y. [Kokan Keisoku K.K., Kawasaki (Japan); Inagaki, J. [NKK Corp., Tokyo (Japan); Fukuda, Y. [Shuibuoka University, Shizuoka (Japan)

    2000-06-01

    The surface of the annealed steel and the exfoliated interface of the coating for the hot dip galvanized Si containing steel sheets was characterized by using SEM (Scanning Electron Microscope), AES (Auger Electron Spectroscopy) and TEM (Transmission Electron Microscopy). The adhesion of the coatings have depended on the Si content of the steel. It have been found that MnSiO{sub 3} particles are formed at the surface of the annealed steels having high Si content and that two types of grain having different distribution of the oxide exist in the steels. Large oxide particles have been formed in one type of grain and small particles are formed in the other type of grain. The different type of Fe-Zn alloy are formed on two types of grains. It have been observed that the oxide particles exist at the interface of exfoliated coatings after the adhesion test for the steels with high Si content. The distribution of the oxide particles observed at the bottom of the exfoliated coating is quite similar to that of the surface oxide of the annealed steel. From these results, the exfoliation of the coating has initiated at the oxide particles of the steel surface that has been not reduced during the hot dip galvanizing. (author)

  16. Report on a commercialization fundamental investigation (in Batulicin Area, Indonesia) in relation to FY 1997 investigations on geological structures in overseas countries; 1997 nendo kaigai chishitsu kozo nado chosa ni kakawaru kigyoka kiso chosa (Indonesia Batulicin chiku) hokokusho

    NONE

    1998-03-01

    A fundamental coal mine development investigation was carried out in Batulicin Area, Kalimantan, the Republic of Indonesia. The investigation included ground surface surveys, preparation of topographical maps and geological maps, trial drilling investigation, physical logging, chemical analysis, and infrastructure investigation. The trial drilling investigation was intended to identify the existence conditions of coal beds and coal quality, and was performed by forming grids with about 500-meter interval, and using 21 trial drillings to depths of 104 to 240 meters for a total drilling length of 3463 meters. The physical logging included electric logging, radioactivity logging and pore size logging, and the trial drilling cores were subjected to chemical analysis. For infrastructures, investigations were carried out on necessity of modifying existing roads, privilege relationship, the current status of barge loading points, water depths, and land acquisition. The result of the investigation revealed that minable coal quantity in underground mining of the coal bed B would be 13.189 million tons, and that annual production of original coal at 733,000 tons would be possible by adopting a long-wall type mechanized coal mining system. 14 refs., 99 figs., 25 tabs.

  17. Fiscal 1998 geological survey overseas. Report on Tanjung Enim project for Japan-Indonesia joint coal exploration; 1998 nendo kaigai chishitsu kozo nado chosa hokokusho. Nippon Indonesia sekitan kyodo tansa Tanjung Enim project

    NONE

    1999-03-01

    For disclosing stratigraphy and lithofacies and for clarifying the status of coal beds in the southern Arahan area (55km{sup 2}), South Sumatra, ground surface exploration, borehole drilling, borehole geophysical logging, and seismic reflection monitoring were carried out. The survey covered a rectangular area, 11km from east to west and 5km from north to south and 60m to 130m in elevation. In the ground surface exploration effort, trenching was performed at three spots in coal bed outcrops in an quasi-accurate survey with route gaps of roughly 1,200m. Ten boreholes were drilled. The deepest one was 282.20m deep and the shallowest one 117.80m deep, with the total drilled length measuring 1,643.70m. Seismic reflection monitoring was implemented using three traverse lines (two running north to south and one running from east to west), with the three lines measuring 10.92km in total. VSP (vertical seismic profiling) was carried for borehole ASN17 only. The findings are that there are four kinds of coal beds, that is, A2, B, C, and E spreading all over the area, that their thicknesses are estimated to be 12m, 18m, 7m, and 6-8m, respectively, and that coal beds A2, B, and C are packed into between 80m-deep and 150m-deep levels. (NEDO)

  18. Characteristic analysis on the deformation behaviour of shell-like lattice structures subjected to follower forces; Judo kaju wo ukeru kosa arch kozo no daihenkei kyodo ni kansuru kenkyu

    Fukuchi, N.; Okada, K. [Kyushu University, Fukuoka (Japan); Fujii, M. [Namura Shipbuilding Co. Ltd., Osaka (Japan); Shiraki, M. [Toyota Motor Corp., Aichi (Japan)

    1998-09-04

    The deformation mechanisms of submerged shell-like lattice structures with membrane are in principle of a non-conservative nature since the follower type hydrostatic pressure. In the region of large deformations, especially in the case of geometrically deep shell-like lattice structures, the system could be much more accurately defined in a mono-clinically convected coordinate description than the conventional spatial description. Also, a complete analysis of a non-conservative system requires a criterion since the system can have multiple ranges of stability and instability involving buckling and snapping. This paper presents the development of the governing equations for the finite deformations of shell-like lattices defined in a mono-clincally convected coordinate description and applies the same to different cases of lattice deformations. The validity of the formulations is verified for finite deformation. The examples of some geometrically special shell-like lattice structures are presented as well to show the feasibility of the present formulation. 5 refs., 11 figs.

  19. 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

    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.

  20. 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

    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.

  1. 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

    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.

  2. Proceedings of the Spring Meeting of the Society of Naval Architects of Japan (1996). Part 2. Structure, materials, welding, construction, and design; Nihon zosen gakkai (1996 nen) shunki koen ronbun maezuri. 2. Kozo, zairyo, yosetsu, kosaku, sekkei

    NONE

    1996-12-31

    This is a proceedings of the Spring Meeting of the Society of Naval Architects of Japan made public on May 15 and 16, 1996. In the basic research, the following are included: Basic studies on computer aided concurrent engineering for hull structure design and piping design; Fundamental study on the new method to estimate vibration level on a ship; Flat plate approximation in the three-dimensional slamming; Development of new finite element by source method, etc. As to fracture and cracks, Equivalent CTOD concept based on the local approach and its application to fracture performance evaluation of welded joints; Fracture mechanical modeling of brittle crack propagation and arrest of steel; An evaluation method for ductile crack propagation in pre-strained plates; Multiple fatigue cracks propagating in a stiffened panel, etc. Relating to fatigue strength, Fatigue life estimation of welded joints of an aluminum alloy under superimposed random load waves; Study on unified fatigue strength assessment method for welded structure, etc.

  3. Fiscal 2000 survey report on overseas geological structure, etc. Project for exchanging experts - Exploration technology (Indonesia); 2000 nendo kaigai chishitsu kozo to chosa hokokusho. Gijutsusha koryu jigyo - Tansa gijutsu bunya (Indonesia)

    NONE

    2001-03-01

    For the stabilization of coal supply/demand in the APEC (Asia-Pacific Economic Cooperation Conference) region and for the stable supply of coal to Japan, Japanese engineers and experts were dispatched to Indonesia, where coal production was remarkably increasing and efforts were being actively exerted to develop new coal mining fields, for training Indonesian specialists there, and Indonesian specialists were invited to Japan for training here. Japanese instructors on dispatch delivered lectures on coal geology, exploration, and exploitation at the human resource development center of Bandung City during the period July 20 through August 4, 2000, which was followed by a coal outcrop survey training session in the field. The trainees were from Kalimantan, Sumatra, Java, etc., and numbered 30. The trainees invited to Japan received lectures and training related to coal geology, exploration, and mining programs during the period October 19 through November 18, 2000, at the Geological Survey of Japan, Agency of Industrial Science and Technology, Ministry of International Trade and Industry; Matsushima Coal Mining Co., Ltd.; Enzan Plant, Tone Corporation; DIA Consultants Co., Ltd.; and Mitsubishi Materials Corporation. (NEDO)

  4. FY 1998 annual report on the survey on overseas geological structures. Project for exchanging engineers (coal mining technology area) (Vietnam); 1998 nendo kaigai chishitsu kozo nado chosaa. Gijutsusha koryu jigyo (tanko gijutsu bun'ya) (Vietnam)

    NONE

    1999-03-01

    The project for exchanging engineers has been implemented, in order to improve production and managemental techniques of coal mining engineers in the Asia-Pacific region, promote smooth and efficient projects for surveying overseas geological structures, and facilitate stable supply of overseas coal to Japan. The FY 1998 project was concentrated on Vietnam, to which Japanese coal mining engineers were sent, and from which production management engineers were invited to Japan as trainees. The Japanese engineers sent to Vietnam educated the underground coal mining techniques. The Vietnamese management engineers invited were trained for, e.g., production management techniques (e.g., those for workplaces and organizations) in the Japanese mines, administrative management techniques, and techniques to improve safety and productivity in the mines. Coal Energy Center and Taiheiyo Mining's Kushiro Mine provided training facilities. (NEDO)

  5. Synthesis and structure of porous alumina precursors derived from n-alkylamine-AlCl3 system; Chokusa alkylamine-AlCl{sub 3} kei wo mochiiru takoshitsu alumina zenkutai no gosei to kozo

    Yoshimura, M.; Machida, M.; Kijima, T. [Miyazaki Univ. (Japan)

    1998-06-01

    Alumina precursors have been prepared from AlCl3 by using n-alkylamines (C{sub n}H{sub 2n+1}NH2) as precipitant at pH 9.6 and pH 6.2, and the structure, composition, microstructure, and thermal decomposition behavior are investigated. The effects of the structure of the precursor on the decomposition behavior and on the surface area of porous alumina are also investigated. When alkylamines n{>=}6 are used, long periodicity phases are produced corresponding to larger than d=2.0nm spacing which can not be attributed to bayerite or pseudo-boehnite. Long periodicity phase is formed uniquely near the water content of about 50mass% (H2O/Al=4.5), and the spacing varies depending on the alkyl chainlength of amine. When the precipitate prepared at pH 6.2 is heated, water is desorbed at near 100degC, pseudo-baehnite phase is pyrolyzed at 300degC, and the precipitate changed into {gamma}-alumina at temperatures higher than 500degC. 16 refs., 9 figs.

  6. FY 1999 Report on overseas geological structure surveys. Joint Japan-China Yu Xian exploitation project; 1999 nendo kaigai chishitsu kozo nado chosa hokokusho. Nippon Chugoku sekitan kyodo tansa Yu Xian project

    NONE

    2000-03-01

    This project is based on the (agreement of the joint exploitation project for Yu Xian block in Yu Xian coal mine, Province of Hepei by Japan's NEDO and China's Coal Geological Bureau), signed on October 4, 1996. The joint project mainly comprises seismic exploitation and test drilling, Japan being mainly responsible for the former and China for the latter. The final report will be drawn jointly for the geological survey results necessary for designing coal mines. The Yu Xian block contains the Jurassic coal seams, which are covered by the Quaternary bed and not exposed to the surface. The Quaternary bed base is 50 to 400 m deep from the surface, and coal seams are 300 to 700 m deep also from the surface. A total of 11 coal seams are located in the Xiahuayuan strata as the coal-bearing strata. The first and fifth seams are most promising ones. In particular, the fifth seam is thick (0.2 to 6.91 m thick) and distributed throughout the block. It is estimated that 8 coal seams have a total coal quantity of approximately 346 million tons. (NEDO)

  7. Fiscal 1998 overseas geological structure survey report on the engineer interchange project (coal mine technology field), Indonesia; 1998 nendo kaigai chishitsu kozo nado chosa gijutsusha koryu jigyo (tanko gijutsu bun'ya), Indonesia hokokusho

    NONE

    1999-03-01

    This project aims at improvement of coal mining technology and productivity in Indonesia by Japanese production control technology and business management technology for underground coal mining, through interchange of coal engineers between Japan and Indonesia. This project is composed of the short- term and long-term dispatch project of engineers to Indonesia, and the training project of Indonesian engineers in Japan. In fiscal 1998, the short-term dispatch was made for the training in Indonesia on underground coal mine development (development planning, pit mouth selection, main gallery design, mining system selection, transport planning, ventilation planning, under-river mining, mine water proofing, drainage). The long-term dispatch was made for contact and negotiation with concerned Indonesian organizations, support of the training project, and collection of information on the trend of Indonesian economy and energy, and the present and trend of the coal industry for conducting smooth and effective engineer interchange. (NEDO)

  8. Report for fiscal 1999 on basic commercialization survey related to geological structure surveys in overseas countries (Kalewa area, Myanmar); 1999 nendo kaigai chishitsu kozo nado chosa ni kakawaru kigyoka kiso chosa (Myanmar Kalewa chiku) hokokusho

    NONE

    2000-03-01

    Commercialization survey was performed on the coal beds in the Kalewa area in the Union of Myanmar by means of geological structure surveys. The site surveys included on-the-ground survey, test drilling survey, sample collection and analysis, and infrastructure survey. The on-the-ground survey area spread out about 5.5 km{sup 2}, wherein nine test wells were drilled (for total distance of 2,046.74 m), and coal and rock sample collection and analysis were carried out on six samples. The infrastructure survey was performed on coal transporting roads, and barge loading planned points and facilities. As a result of the test drilling survey, existence of coal beds with thickness of 4 ft, 9 ft and 6ft was identified. Since the 9-ft bed in particular exists stably with inclination of 40 to 42 degrees over the whole subject area, it was made clear that the bed can be the object of mining as the main coal bed. The coal is the ordinary coal with such good qualities as ash content of 4.72%, total sulfur content of 0.22%, and total calorific power of 6,500 to 6,570 kcal/kg. The defined coal quantity for the 9-ft bed is four million tons, or 7.7 million tons in total if the estimated coal quantity is added. The quantity will amount to 15.3 million tons when those of the 4-ft and 6-ft beds are added. (NEDO)

  9. Proceedings of the Spring Meeting of the Society of Naval Architects of Japan (1996). Part 2. Structure, materials, welding, construction, and design; Nihon zosen gakkai (1996 nen) shunki koen ronbun maezuri. 2. Kozo, zairyo, yosetsu, kosaku, sekkei

    NONE

    1997-12-31

    This is a proceedings of the Spring Meeting of the Society of Naval Architects of Japan made public on May 15 and 16, 1996. In the basic research, the following are included: Basic studies on computer aided concurrent engineering for hull structure design and piping design; Fundamental study on the new method to estimate vibration level on a ship; Flat plate approximation in the three-dimensional slamming; Development of new finite element by source method, etc. As to fracture and cracks, Equivalent CTOD concept based on the local approach and its application to fracture performance evaluation of welded joints; Fracture mechanical modeling of brittle crack propagation and arrest of steel; An evaluation method for ductile crack propagation in pre-strained plates; Multiple fatigue cracks propagating in a stiffened panel, etc. Relating to fatigue strength, Fatigue life estimation of welded joints of an aluminum alloy under superimposed random load waves; Study on unified fatigue strength assessment method for welded structure, etc.

  10. 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

    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.

  11. Feasibility study of Copahue geothermal development project, Argentina; Aruzenchin kyowakoku Copahue chiiki no chinetsu kaihatsu chosa

    Abe, M.; Yamada, M.; Nakanishi, S.; Todaka, N. [Electric Power Development Co. Ltd., Tokyo (Japan); Fujita, T.

    1996-03-15

    Geothermal resources have been evaluated in the Copahue district. For this survey administrated by JICA, drilling of a deep test well with a small bore (COP-3) and blowout tests were conducted. This district is located at the east side of the Andes elongated in the N-S direction. Volcanoes with similar active periods and active states are distributed in the N-S direction, which forms a divide with the Pacific Ocean side. The Copahue-Caviahue composite volcano in the surveyed area is located nearly in the central part of the volcanic zone, which forms a special ring topography. Geology of the Copahue district consists of volcanic effusive rocks during the Tertiary and Quaternary periods. There are five prospecting fields with geothermal indications in the surveyed area. From the survey, an area of about 13 km{sup 2} was evaluated as a geothermal resource field. Especially, in the area of about 4 km{sup 2} including COP-1, 2 and 3 wells, the steam predominant type reservoirs were found out. As a result of estimation of the geothermal resource potential by the volumetric method, a highly prospective power generation potential of 30 MW was evaluated in the field where the steam predominant type reservoirs were confirmed by the boring wells. 7 refs., 13 figs., 1 tab.

  12. Development of measurement apparatus for high resolution electrical surveys; Komitsudo denki tansa sokuteiki no kaihatsu

    Moriuchi, H; Matsuda, Y; Shiokawa, Y [Sumiko Consultants Co. Ltd., Tokyo (Japan); Uchino, Y [Cosmic Co. Ltd., Tokyo (Japan)

    1996-05-01

    For the enforcement of the {rho}a-{rho}u survey method which is a type of high-density electrical survey, a multichannel resistivity measuring instrument has been developed. This instrument, in addition to the above, conducts resistivity tomography and various other kinds of high-density electrical survey. A potential produced by a low frequency rectangular current of 1Hz or lower outputted by the transmitter of this instrument is received and measured by the receiver connected to electrodes positioned at 100 or less locations. The receiver comprises a scanner that automatically switches from electrode to electrode, conditioner that processes signals, and controller. A transmitter of the standard design outputs a maximum voltage of 800V and maximum current of 2A, making a device suitable for probing 50 to several 100m-deep levels. The receiver is operated by a personal computer that the controller is provided with. The newly-developed apparatus succeeded in presenting high-precision images of the result of a {rho}a-{rho}u analysis for an apparent resistivity section and of the underground structure, verifying the high quality of the data collected by this apparatus. 10 refs., 5 figs., 1 tab.

  13. Development of S-wave portable vibrator; S ha potable vibrator shingen no kaihatsu

    Kaida, Y; Matsubara, Y [OYO Corp., Tokyo (Japan); Nijhof, V; Brouwer, J

    1996-05-01

    An S-wave portable vibrator to serve as a seismic source has been developed for the purpose of applying the shallow-layer reflection method to the study of the soil ground. The author, et al., who previously developed a P-wave portable vibrator has now developed an S-wave version, considering the advantage of the S-wave over the P-wave in that, for example, the S-wave velocity may be directly compared with the N-value representing ground strength and that the S-wave travels more slowly than the P-wave through sticky soil promising a higher-resolution exploration. The experimentally constructed S-wave vibrator consists of a conventional P-wave vibrator and an L-type wooden base plate combined therewith. Serving as the monitor for vibration is a conventional accelerometer without any modification. The applicability test was carried out at a location where a plank hammering test was once conducted for reflection aided exploration, and the result was compared with that of the plank hammering test. As the result, it was found that after some preliminary treatment the results of the two tests were roughly the same but that both reflected waves were a little sharper in the S-wave vibrator test than in the plank hammering test. 4 refs., 9 figs., 1 tab.

  14. Development of new-concept superconducting power equipment; Shinkino chodendo denryoku kiki no kaihatsu

    Hamajima, T.; Tsurunaga, K.; Urata, M. [Toshiba Corp., Tokyo (Japan)

    1998-01-01

    The superconducting magnet energy storage (SMES) system has a function by which magnetic energy is stored in a superconducting coil without loss and discharged very rapidly into the power line when needed. The fault current limiter has a function by which transport current is passed without impedance and excessive fault current is restricted by generating large impedance in an emergency. These are the functions of new power equipment, which can not be realized by the conventional equipment. In the small-scale SMES project, Toshiba has fabricated 100 kWh-class element coils and 1 kWh/1 MW modules as the first step of practical application for power system control. For the superconducting fault current limiter, Toshiba has developed a 6.6 kV-1 kA class fault current limiter without supplying cooling medium such as helium, and limiting tests of fault current have been successfully conducted. Through the long-term tests of element coils for SMES and the system interconnection tests of module-type SMES, it is expected that the technological development for practical application is accelerated. 4 refs., 7 figs., 3 tabs.

  15. Development of a water hydraulic servovalve; Suiatsu servo ben no kaihatsu

    Urata, E.; Nakao, Y. [Kanagawa University, Kanagawa (Japan). Faculty of Engineering; Yamashina, C.; Miyagawa, S.; Usami, Y.; Shinoda, M. [Ebara Research Co. Ltd., Kanagawa (Japan)

    1997-06-25

    An electrohydraulic servovalve that uses clear water as a pressure medium (water hydraulic servovalve) is developed. A conventional electrohydraulic servovalve cannot work with this hostile fluid. This paper explains the structure and functions of components, and the relationship between them, as well as development procedure of the water hydraulic servovalve. The basic idea for the development is to support the spool of the valve with hydrostatic bearings and to lead the water from the bearings to the flapper-nozzle system, which, in this valve contains a laminar restriction upstream from the nozzle instead of the turbulent restriction in the conventional flapper-nozzle system. This paper also explains the design procedure of the hydrostatic bearing in the valve and the connection of electromagnetic elements and the fluidic elements. The manufactured water hydraulic servovalves show good characteristics in their smooth motion, endurance and controllability, including dynamic characteristics. 25 refs., 12 figs.

  16. Development and utilization of liquid quartz light modulating film. Ekisho choko film no kaihatsu to riyo

    Takahashi, M. (Ajinomoto Co. Inc., Tokyo (Japan))

    1992-03-01

    This paper introduces the polymer dispersed liquid crystal (PDLC) ACT'' sheet, a liquid quartz light modulating film, developed by the Ajinomoto Company in Japan. A mixture of liquid crystal and polymer precursor is sandwiched between polyethylene terephthalate films imparted with transparency conductor made of indium tin oxide (ITO), which is then polymerized by heating or irradiating ultraviolet rays to obtain a PDLC. The film has a thickness as thin as about 0.3 mm, and good processibility. The sheet uses light modulating elements functioning on scatter and permeation of light. Clarification was made on the voltage dependence of cloudiness, total light permeability, straight and parallel light permeability, the response, and the operating voltage. The system consumes small amount of power with a threshold value of about 35V, and is suitable to operate large areas when working on the utility power supply. An incident light having a high diffusion capability when the electric field is turned off exhibits a high clouding function. The system gives an excellent feel of colorlessness and transparency when the electric field is turned on. The performances in heat insulation, infrared reflection capability and noise resistance are expected to be compounded for a functional versatility. 4 refs., 6 figs., 2 tabs.

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

    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)

  18. Research and development project plans for FY 1995; 1995 nendo kenkyu kaihatsu jigyo keikaku

    NONE

    1995-04-01

    The present research and development project plans for FY 1995 administrated by NEDO consist of research and development of new energy, and research and development of industrial technology. Are illustrated further enhancement of new energy introduction promotion measures, new stage of international projects, promotion of new energy and new energy technology development, further enhancement of industrial and scientific technology research and development, integrated measures against global and urban environment problems, and budget of NEDO projects in FY 1995. The research and development of new energy includes coal conversion technology, solar energy technology, geothermal energy technology, energy conversion and storage technology, hydrogen, alcohol and biomass energy technology, geothermal energy resources, coal resources development, new energy promotion department activities, NEDO information center activities, and so on. On the other hand, the research and development of industrial technology includes research and development of industrial technology, and global environment technology. The research and development of industrial technology consists of superconductivity, new materials, biotechnology, electronics, information and communications, machinery and aerospace, natural resources, humanity, life and society, and various leading researches.

  19. R and D of remote reading system. Remote reading system no kaihatsu kenkyu

    Nakano, H.; Hamada, T.; Nakamura, O. (The Kansai Electric Power Co. Inc., Osaka (Japan)); Imai, Y.; Akiyama, K.

    1992-03-25

    As measures for the spots difficult in metering within a framework to integrally automate the power distribution, a remote reading system was prototypically tested and evaluated in reliability on the actual field. The system methodically selected the signal {prime}s line injection, high frequency wave signal and voltage detection, while the signal frequency, transmission rate and highest transmission output were set at approx. 3.5KHz, 7.5bps and 50dBm, respectively from the test result. The demonstration test on reliability of the system locatively selected a vicinity of high voltage consumer, high harmonic wave-generating consumer, transforming station, etc. The total ratio of success in reception was comparatively high in Kuzuno and Yamazaki areas, but low in Kamojyo and Ichinomiya areas, The badness in reception was caused by the fluctuation in noise and strongness in damping which was influenced by the condenser in the high voltage consumer. The locative relation between the parent and child stations of system, and high voltage consumer being classified into four patters, an application table of remote reading system was prepared by simulation. 14 figs., 6 tabs.

  20. Development of sound absorption measuring system with acoustic chamber; Kogata kyuon koka sokutei sochi no kaihatsu

    Takahira, M.; Noba, M. [Toyota Motor Corp., Aichi (Japan); Matsuoka, H. [Nippon Soken, Inc., Tokyo (Japan)

    1998-05-01

    In order to measure sound absorption performance necessary to develop sound absorption materials, development was made on a device consisting of a small sound box capable of measurement inexpensively and easily, as a measure against the reverberation chamber method. In order to obtain stabilized diffusion sound internally, the sound box has a shape of asymmetric seven-side body in which sides do not face squarely with each other. The box was so sized that a large number of resonant vibration postures can be constituted at the targeted frequency simultaneously in the box. The box has a commercially available cone speaker with good acoustic output characteristics in frequency range of higher than 500 Hz installed on an inner side of the box. The sound source uses a method to derive sound absorption rate from difference of sound pressure levels. In order to eliminate need of averaging treatment by using a multi-point measurement inside the box, a discussion was given to provide an opening on part of the box to place the sound receiving point outside the opening. A square test piece is placed on the floor 0.5 meter or more away from the speaker in the box. As a result of the experiment, it was verified that the sound absorption rate obtained by this device corresponds well with that by the reverberation chamber method. The size of the test piece was also found adequate. 2 refs., 11 figs., 1 tab.

  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

    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. Development of hydraulic brake actuator for active brake control; Active brake seigyoyo yuatsu booster no kaihatsu

    Konishi, Y; Hattori, M. Sugisawa, M.; Nishii, M [Aisin Seiki Co. Ltd., Aichi (Japan)

    1997-10-01

    Recently, application of active brake control systems of the vehicle are increasing. (Vehicle stability control, Panic brake assist ) We have developed a new hydraulic brake actuator for active brake control systems. New hydraulic brake actuator is composed of the three parts. (Hydraulic booster unit, Power supply unit, Control valve unit) This report describes the construction of the new hydraulic booster unit. 2 refs., 10 figs.

  3. Development of crankshaft dynamic stress prediction; Jitsudoji crankshaft oryoku yosoku shuho no kaihatsu

    Takahashi, S; Iwamoto, A; Miyazawa, H; Sato, K; Ozaki, H [Honda R and D Co. Ltd., Tokyo (Japan)

    1997-10-01

    In this paper, the development of the simulation model which predicts the stress of the crankshaft under running condition precisely is described. This simulation model considers about the nonlinearity of the oil film stiffness in the main bearing, the dynamic characteristic of the crankshaft system including resonance and the cylinder block stiffness. By the development of this stress analysis simulation, the stress m each part of the crankshaft during durability testing could be precisely predicted. 1 ref., 10 figs.

  4. Development of friction welding method by electric servo motors; Dendo servo shiki masatsu assetsuho no kaihatsu

    Suzuki, H; Onuma, M; Hasegawa, T; Sakamoto, T [Toyota Motor Corp., Aichi (Japan)

    1997-10-01

    The standard friction welding has two methods; the brake method and the inertia method. We have developed a new friction welding method with the electric servo motor system. The forming of plastic fluidity layers of interface is evaluated quantitatively with the feedback control characteristics. The new method has enabled to reduce the heat effect and the burr of friction welding. In the method, we could reduce the getting heat energy, from one-third to half less than the previous methods. 6 refs., 16 figs.

  5. Hierarchical functional model for automobile development; Jidosha kaihatsu no tame no kaisogata kino model

    Sumida, S [U-shin Ltd., Tokyo (Japan); Nagamatsu, M; Maruyama, K [Hokkaido Institute of Technology, Sapporo (Japan); Hiramatsu, S [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    A new approach on modeling is put forward in order to compose the virtual prototype which is indispensable for fully computer integrated concurrent development of automobile product. A basic concept of the hierarchical functional model is proposed as the concrete form of this new modeling technology. This model is used mainly for explaining and simulating functions and efficiencies of both the parts and the total product of automobile. All engineers who engage themselves in design and development of automobile can collaborate with one another using this model. Some application examples are shown, and usefulness of this model is demonstrated. 5 refs., 5 figs.

  6. Development of catalyst for diesel engine; Diesel engine yo shokubai no kaihatsu

    Ueno, H; Furutani, T; Nagami, T [Toyota Motor Corp., Aichi (Japan); Aono, N; Goshima, H; Kasahara, K [Cataler Industrial Co. Ltd., Shizuoka (Japan)

    1997-10-01

    The new concept catalyst for diesel engine has been developed. When the exhaust temperature is low, SOF and HC are temporarily adsorbed by the adsorbent within the catalyst and are oxidized as the temperature rise. The process of this development have manifested as follows. (1) The coating material is important factor to govern the oxidation activity. (2) SOF is reduced by the coating material in low temperature less than 200degC. (3) The coating material, which has low SO2 adsorbing rate suppress the sulfate formation at high temperature. 2 refs., 11 figs., 1 tab.

  7. Development of super thin foil metal supported catalyst; Chousuhaku metal tantai shokubai no kaihatsu

    Sanji, F; Takada, T [Toyota Motor Corp., Aichi (Japan)

    1997-10-01

    In order to improve warm-up performance, high heat resistance and long life durability of catalysts, the reduction of the metal support heat capacity has been focused. The effects of both reducing foil thickness and lowering cell density on low heat capacity have been investigated. As a result of engine bench and vehicle test, it was apparent that the reduction of foil thickness has greater effects. Newly developed 30 {mu} m foil thickness metal supported catalyst has quicker warm-up performance, and its structural durability up to 950degC is confirmed. 3 refs., 11 figs., 1 tab.

  8. Development of low light-off catalyst; Teion kassei ni sugureta shokubai no kaihatsu

    Takemoto, T; Ichikawa, S; Koda, Y; Yamamoto, E; Sumida, H; Yamada, H; Shigetsu, M; Komatsu, K [Mazda Motor Corp., Tokyo (Japan)

    1997-10-01

    A new type of three way catalyst was developed in order to reduce HC, CO and NOx in cold exhaust gas. This catalyst consists of double layer, and has a base support material of alumina and oxygen storage components (OSC) loaded with active metals including platinum. palladium and rhodium. It has good light-off performance and high catalytic activity. This catalyst includes two types of OSC. One is CeO2, and the other is CePrO2 that makes possible to improve NOx conversion at high exhaust gas temperature. 8 refs., 13 figs., 2 tabs.

  9. Development of an automatic emergency reporting system; Jiko jido tsuho system no kaihatsu

    Kawai, A; Sekine, M; Kodama, R; Matsumura, K [Nissan Motor Co. Ltd., Tokyo (Japan)

    1995-06-30

    This paper proposes an automatic emergency reporting system as an ASV technology for preventing secondary damage. In the event a vehicle is involved in an accident or other emergency situation, this system automatically reports the vehicle`s present position along with information on the vehicle and owner to an operations center via radio signals. This makes it possible to dispatch an ambulance or other emergency vehicle more quickly. A prototype simulation system has been built consisting of a custom designed control unit for in-vehicle use and a personal computer that simulates an operations center. The interface between the control unit and the personal computer is a wireless modem. The navigation system offered in the Cedric was modified for use as the vehicle location sensor and map database of the operations center. In experiments conducted on the system, information was transmitted from the control unit and shown on a digital map display on the personal computer screen in about ten seconds following activation of an emergency signal. 5 figs.

  10. Both hydrogen and electricity chargeable battery; Suiso to denki de juden kanona denchi kaihatsu

    NONE

    1999-06-01

    Kuriyama group of the Osaka Industrial Research Institute developed a new air-metallic hydride battery that is chargeable by both electricity and hydrogen gas. The battery uses a hydrogen storage alloy as the negative pole and uses active carbon coated with platinum as the positive pole. Potassium hydroxide aqueous solution is used as the electrolyte, and a space is arranged in the negative pole for contacting and absorbing the hydrogen with a good efficiency. The key point is the development of the hydride for energy storage that can well absorbs the hydrogen gas even it is dampened by the electrolyte. And the pole is prepared by pulverized the particles of rare earth hydrogen storage alloy having the particle size smaller than 150 micron meter, forming a Ni layer for a catalyst to absorb hydrogen, adding fluorinated resin dispersant for the sake of repellency and forming a sheet. In a test running, a half of hydrogen storage capacity is realized by charging for 30 minutes. And, 0.6 V electricity of 10 mA per unit pole area of 1cm{sup 2} is continuously obtained for 17 hours during discharging. While a third electrode is formed by nickel hydroxide, the battery is chargeable and dischargeable as the same as nickel hydrogen battery. Low cost and small size can be expected by a combination of respectively prepared fuel battery with nickel hydrogen battery. (translated by NEDO)

  11. Hydrogen battery car developed in Matsuda; Matsuda suiso nenryo denchisha wo kaihatsu

    NONE

    1999-06-01

    Matsuda announced that the hydrogen battery car 'Demio FCEV' was developed by the company. This new type car not only does not need an air humidifying machine, but also supplies the necessary electricity with an ultra capacitor of a large scale condenser. Its maximum output is 40 kw, the highest speed is 90 km per hour, and the accelerating time from the stop state to 40 m is about 5 seconds, the same level as a gasoline car. One time of hydrogen charging serves for 170 km running. As a hydrogen battery car, it is the third one in the world, following the DAIMURA in Germany and TOYOTA. (translated by NEDO)

  12. Study on the current status of biomass energy development; Bio mass energy no kaihatsu jokyo chosa

    NONE

    1996-03-01

    A survey was conducted on the present status of biomass energy in Japan and abroad and the developmental trend of the latest biomass energy technology. Brazil and the U.S. are most advancing in the biomass energy utilization. Brazil uses sugar cane which is plenty in supply as a raw material, and the U.S. does corn which is the surplus crop. Both countries use the conventional ethanol fermentation technology and produce the petroleum substitution liquid fuel which is in greatest need. As to the technology to convert biomass resource into energy, attention has so far been paid to the development of the production process of the liquid fuel. The latest technology for ethanol fermentation using saccharin and starch as raw materials has already been established in Japan, and the energy-saving type alcohol recovery technology has also reached the stage of practical application. Moreover, as to the ethanol conversion technology with cellulose substrate, the development of the saccharification process will be needed in future. 15 figs., 10 tabs.

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

    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.

  14. Development of a new automotive navigation system; Shingata navigation system no kaihatsu

    Sone, M; Nakano, H; Nakayama, O; Tanemura, E; Yoshitsugu, N; Watanabe, M [Nissan Motor Co. Ltd., Tokyo (Japan)

    1996-01-31

    An automotive navigation system was outlined. Features of this system are described below: map display called `Bird View` extending up to the horizon was commercialized; accuracy of determining the vehicle`s present position was realized using new algorithm; and automatic route selection was adopted. Human machine interface of this system also was completely reviewed. `Bird View` was realized by reading plane map data out from CD-ROM and converting them onto the coordinate on the virtual screen in front of the view point. Automatic selection which depends mostly on self-contained navigation adopts the certain way in comparison of the computation position in GPS. To assume vehicle advancing direction, employed were optical fiber gyroscope, geomagnetic sensor, and Karman filter making a good use of advantages of GPS, for the improvement of accuracy. For the automatic distance correction, a function of correcting pulse-distance conversion coefficient was employed, and the free maintenance was realized. 5 figs.

  15. Development of a method to maintain vigilance level; Kakusei teika keigen shuho no kaihatsu

    Okamoto, Y.; Horiguchi, A.; Ishida, K.; Hata, S. [Mazda Motor Corp., Hiroshima (Japan)

    1995-04-20

    As a part of measures to prevent accidents caused by reduced vigilance and drowsiness of drivers, this paper reports the result of experiments that presents effectiveness of a method to give drivers intermittent auditory stimuli as environmental stimulation. It was found that vigilance decline can be reduced by intermittent auditory stimuli under a laboratory condition using a selective reaction time in monotonous selective reaction works as a parameter; and the effective interval in the intermittence is 30 seconds. A driving simulator was used to prove that the vigilance decline reducing effect by the intermittent auditory stimuli has the same level of effect as chewing gums even under the environment composed of driving operation, vehicle motions, and background noise. However, a number of questions remain yet to be discussed, such as the effect when the ratio of sound presentation time and no presentation time was varied. Furthermore, a number of other physical stimuli in addition to auditory stimulation may be assumed that has effective possibility as vigilance decline reducing stimuli, including hot heat and vibration. It was verified, however, that vigilance decline can be reduced by properly varying the environmental stimulation. 6 refs., 15 figs., 1 tab.

  16. Research and development of utilization technology of solar thermal system for industrial and other use. Development of passive solar system (research and development of advanced glazing); Sangyoyo nado solar system jitsuyoka gijutsu kaihatsu. Passive solar system no kaihatsu (chokozai nado no kenkyu kaihatsu (advanced grazing no kenkyu kaihatsu))

    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 advanced glazing in which solar energy is efficiently utilized. The peripheral techniques are surveyed for evaluation of characteristics of large-size dimming glass, optimization of film compositions and scaling up. The dimming device, made on a trial basis, attains a target controllable rage of at least 50% for visible light transmittance. The suitable components include WO3 as the electrochromic material producing color under a reducing atmosphere, NiO as the counter electrode producing color under an oxidative atmosphere, and hydrated SbOx as the proton-conducting electrolyte. The test results indicate possibility of the dimming glass stably operable while being irradiated with a quantity of sun ray of around 10 years. The study on scaling up the dimmer glass develops, on a trial basis, a process for producing large-size glass and evaluates its characteristics, where the film parameters are investigated. It also investigates the peripheral techniques for assembling the devices for the large-size glass, and develops useful techniques, such as those for sealants and improved sealing methods. 1 fig., 1 tab.

  17. Development and environment of new electric automobile, `Ecovehicle`; Shingata denki jidosha eko vehicle kaihatsu to kankyo

    Shimizu, H [National Inst. for Environmental Studies, Tsukuba (Japan)

    1996-10-27

    This paper introduces history of the development of an electric automobile, `Ecovehicle`. It is provided with a high overall energy efficiency compared with an engine vehicle. The Ecovihicle is 1.2m in width, 3.3m in length, 2 seating capacities and 910kg in overall weight with serially connected 56 batteries of each 4V, 40Ah and having the total weight of 269kg. Its travel distance per charging is 130km at a speed of 80 k.p.h. This vehicle is capable of running with an energy of approximately one third as much as that of a light car. In addition, the vehicle is provided with polycrystal solar batteries placed on 0.6m{sup 2} area on the roof and spoiler generating 60W maximum. Assuming the annual duration of sunshine is 1,800 hours, charging is possible for 63kWh annually. Assuming the charging efficiency is 83%, charging is possible about seven times, which is an equivalent of travelling about 1,000km annually. The characteristics for example are the employment of brushless DC motor, use of energy saving switching element IGBT in order to realize a low level of loss in the inverter, in-wheel motor system, and storage of storage batteries in a hollow aluminum frame installed under the floor. 2 refs., 5 figs., 1 tab.

  18. Development of RaRaII solar car. Solar car RaRaII no kaihatsu

    Ohashi, M [Toyota Motor Corp., Aichi (Japan)

    1991-05-31

    A solar car was developed to be able to travel, by utilizing solar energy, as a guiding car for the marathon race in the public road. That car is 210kg in weight, 1 in number of riding persons and 4.8m in smallest rotating radius. Its traveling performance is 44km h in highest speed, 10{degree} in hill-climbing ability and 0.6m s{sup 2} in acceleration. Those principal particulars satisfied the required condition of guiding car for the marathon race. That car was equipped with a polycrystalline silicon type solar cell, 6m{sup 2} in area to generate 870Wp power. A silver oxide-zinc battery, used as a secondary battery to secure traveling in case of rain, is of a performance to travel twice the marathon race road through. To satisfy the public road traveling in safety standard, that car was equipped with head lamps, wiper, direction winkers, rear-view mirrors, etc. As material of the body, aramid fiber and carbon fiber were adopted for securing the rigidity to cover the lightening in weight. That car, as used at an opportunity of intercollegiate marathon relay race, traveled a distance of about 30km which was its entire public road portion of course. 2 figs., 2 tabs.

  19. Development of MCFC and PEFC technologies; Jisedai nenryo denchi no kaihatsu

    Hori, M; Ozu, H; Sonai, A [Toshiba Corp. Tokyo (Japan)

    1996-06-01

    Next-generation fuel cells under development by Toshiba Corporation are outlined. The molten carbonate fuel cell (MCFC) has become stable in performance, which results from the conversion of the matrix group from the {gamma}-type to {alpha}-type LiAlO2. The cathode material is expected to withstand the elution of electrolyte for 20000 hours. The soft structure separator developed for stack constitution is expected to improve electrical contact and reduce the cost of stack. An appliance has been completed to tentatively produce every element concerned. During an actual operation, the structural soundness of the 2-cell stack was confirmed by thermal load tests. As for the polymer electrolyte fuel cell (PEFC), an interior humidification method has been developed using a porous material for supplying water to the polymer film. The amount of moisture can be controlled, which will enable a larger-area cell. A 1kW-class stack with a world-record-level 1200cm{sup 2} electrode area has been developed, which stack has shown that the target output has been attained. Furthermore, the power generation efficiency of the system including fuel treatment has been examined. 10 figs.

  20. Development of the Nissan hydraulic active suspension. Nissan yuatsu active suspension no kaihatsu

    Kawarasaki, y.; Fukunaga, Y.; Hasegawa, S.; Okuyama, Y.; Omura, I.; Takahashi, K.; Abe, S.; Tsuruta, E. (Nissan Motor Co. Ltd., Tokyo (Japan))

    1989-12-25

    A hydraulic active suspension system, Nissan original product, was developed and mass produced for the first time in the world. The system incorporates a sufficient power source, a high accuracy sensor and a high response device for continuous and intended vehicle control and at the same time delivers high levels of ride comfort and driving performance. The suspension system has four innovative features: skyhook damping, active roll and pitching control, a frequency-dependent damping mechanism, and active steering characteristics control. Under all road and operating conditions, the system actively suppresses vehicle attitude changes and unnecessary movement, and also gently absorbs inputs from the road. This epoch-making system provides a dramatic improvement in vehicle performance, and has been adopted in the Infiniti Q45 luxury sedan. 2 refs., 20 figs., 4 tabs.

  1. Radar system for non-excavation flowmole drilling; Flowmole koho zenpo kanshi sensor no kaihatsu

    Nakauchi, T; Hayakawa, H; Tsunasaki, M; Kishi, M [Osaka Gas Co. Ltd., Osaka (Japan)

    1997-10-22

    Technology is discussed of detecting structures buried in the ground by use of a forward-looking sensor mounted on the drill head for the avoidance of collision with such structures during application of the flowmole method in urban districts. In this detection system, pulsating radio signals are emitted from a transmission antenna and the received signals are converted into low-frequency signals in a sampling circuit for eventual display on a B-scope. Since the drill head for flowmole technology is as small as approximately 50-60mm in diameter, experiment is conducted to know the detectability of a very small antenna directed at a buried pipe. The basic phase of the experiment using the very small antenna includes a soil-filled tank test and field test. It is then found that the very small antenna is capable of detecting the steel pipe buried 50cm away from the antenna with the antenna directed at the said pipe. In a test wherein a very small antenna is allowed to rotate on the drill propelling shaft, the design simulating a revolving drill head, it is learned that the detecting system under study will identify the direction in which a buried structure exists. 1 ref., 9 figs.

  2. Development of the sex quality of the material for high; Kotaiyosei suritto puragu zaishitsu no kaihatsu

    Egashira, R. [TYK Corp., Gifu (Japan)

    1999-02-01

    When it works for the stable durability of the gas business slit flag, a spooling is made a problem like heat, and the improvement of the quality of the material is being done. It is formed, and a thermostability spooling causes curving, and the existence of that gap is being improved by substituting some of the bone materials for the special alumina bone material during the bone material and the matrix by being connected with the resistance of the crack development the gap when a crack develops, it branches off .A stable durability is confirmed even in an actual opportunity, and heat shock crack resistance Rst is placed on the effective method as an evaluation of the thermostability spooling. (translated by NEDO)

  3. Research and development of turbofan engine for supersonic aircraft. Choonsokukiyo turbofan engine no kenkyu kaihatsu

    Yashima, S [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)

    1992-01-01

    This paper described the researched results of the demonstrator of a turbofan engine for supersonic aircraft (IHI-17). A turbofan engine with an afterburner was experimentally fabricated and various engine tests have been carried out since 1988. Although the engine size is small, the fighter engine specifications were applied to its design and the prior or simultaneous research on each component was carried out. As a result, the system integration technique by which an engine was assembled by integrating each component could be established. New materials and new manufacturing techniques such as turbine blades of single crystal, turbine disks of powder metallurgy and deep chemical milling for a duct were developed to use for the long term engine test and the prospect to commercialization could be obtained. The following techniques have been established and the results satisfying target specifications could be achieved: the three dimensional aerodynamic design of compressor and turbine, the adoption of air blast fuel atomizer to suppress the smoke generation, an afterburner of spray bar system and the mounting type FADEC (full authority digital electronic control) to control the engine with the afterburner. 4 refs., 15 figs., 4 tabs.

  4. Development of GE90 engine with largest thrust. GE90 engine no kaihatsu jokyo

    Aono, H [Ishikawajima-Harima Heavy Industries, Co. Ltd., Tokyo (Japan)

    1994-05-01

    The present paper explained the turbofan engine GE90 which is being developed by General Electric Co., USA. That engine is to meet the thrust (takeoff thrust) of 300 to 530kN as required for the new-generation wide-fuselage civil transport plane which is being designed for its planned operation in the 1990's. In April, 1991, the world's strongest thrust of 480kN was achieved with engine elements also confirmed through element test. Thereafter, the engine underwent a flying test on board of Boeing 747 to materialize the planned operation in 1995. Made to be 9 in by-pass ratio and about 40 in overall pressure ratio, the GE90 was given the concept that advantage could be secured in both propulsive efficiency and thermal efficiency. That concept could be materialized by the development of composite fan blade technology and energy-efficient technology which were both demonstrated with an unducted fan. In spite of its pressure ratio of 22, the GE90's high pressure compressor demonstrates its polytropic efficiency which is equal to that of the low pressure ratio compressor. 3 refs., 19 figs., 1 tab.

  5. Development of high reliability dual redundant FADEC. Koshinraisei nijukei FADEC no kaihatsu

    Endo, M [Ishikawajima-Harima Heavy Industries, Co. Ltd., Tokyo (Japan)

    1994-05-01

    The control unit of gas turbine for the aircraft jet engine use must draw overall performance in compliance with the thrust commanded by the pilot under all flying conditions of the engine. High reliability is required in flight safety. The present paper explains a developed unit of dual redundant FADEC (full authority digital electronic control) and high-density mounting technology for the electronic devices required by the FADEC. The FADEC unit is composed of two hardware systems with their respective microprocessors of the same structure. Each of both systems can solely control the engine, while they are both commanded by a necessary signal for the dual system operation and connected through a digital by-pass which can exchange the input/output data between them. For the operational confirmation of FADEC unit, its control characteristics were inspected by intentionally putting it out of order at the time of engine acceleration/deceleration and other transient operations. The control system could be switched without control characteristics lost of the engine. 9 figs., 2 tabs.

  6. Quiet STOL research aircraft development program. Teisoon STOL jikkenki kitai kaihatsu sogo hokokusho

    1994-01-01

    The airframe development program of the quiet STOL research aircraft (ASKA) promoted by National Aerospace Laboratory, Japan is reported in detail. ASKA was developed based on a C-1 medium-sized troop and freight transport aircraft for the Air Self-Defence Force, and four turbofan- jet engines were substituted for two previous engines. Its first flight was conducted successfully on Oct. 28, 1985 after 8 year development from 1977 to 1985. The ASKA was developed separately on its airframe, engine and flight, and this report includes every related matter to its airframe. The promotion system, budget and executive system are reported in the second chapter, and the design requirements, safety standard and basic design in the third chapter. Several related tests such as wind tunnel test and flight simulation test are reported in the 4th chapter, and the structure and equipment of ASKA are outlined in the final chapter. The appendix includes the line-up of and discussions in the technical committee, the list of newly developed functional parts, the list of design reports and the list of related tests. 50 refs., 8 figs., 23 tabs.

  7. Present developmental conditions petroleum substituting energies in the EU; Sekiyu daitai energy kaihatsu no genjo (EU)

    NONE

    1997-03-01

    This report outlines the policy of development and introduction of petroleum substituting energies, and its diffusion situation in the EU. On the policy, development, introduction and diffusion of petroleum substituting energies in the EU, based on the new EU energy white paper issued in fiscal 1996, the policy of energy and environment in every EU country is first outlined. The policy of and practical approach to petroleum substituting energies in every EU country are next described. In particular, since ALTENER which has been continuously promoted by the EU for 3 years as main control measures against CO2 is newly moving toward the second plan, the trend of ALTENER and the new SAVE2 plan are presented. The content of JOULE-THERMIE is also precisely presented which is the new energy program of the 4th framework R & D program. In relation to the developmental trend of alternative energies to oil in the EU until 2020, its prediction result is presented on the basis of the latest study promoted by EC committee in the ALTENER plan. 10 tabs.

  8. Present developmental conditions of petroleum substituting energies in France; Sekiyu daitai energy kaihatsu no genjo (France)

    NONE

    1997-03-01

    The French Government most enthusiastically promotes development of bio-gasoline in renewable energy field. EU makes pressure to remove the French Government`s fiscal advantages for bio-gasoline which only benefit French farmers, and the IEA (International Energy Agency) report also estimates no benefit corresponding to the fiscal support cost. Start of the `Eolien 2005` project is attractive in renewable energy field which aims at construction of wind power generation stations of 250-500MW by 2005. The `Eolien 2005` project is mainly supported by Electricite de France (EDF) who guarantees the purchase of produced electric power at a submitted price. In addition to this subsidy activity, EDF decided to positively tackle renewable energy. On R and D efforts for renewable energy, France belongs to the most poor countries among IEA countries, and in addition, the effort is considerably concentrated onto the study on reduction of production cost for bio-gasoline. There were no changes in this situation in 1996. 7 refs., 5 figs., 31 tabs.

  9. Development of plastic pulley by injection molding; Shashutsu keisei ni yoru jushi pulley no kaihatsu

    Yoshizumi, F; Funatsu, A; Yazawa, H [Sumitomo Bakelite Co. Ltd., Tokyo (Japan)

    1997-10-01

    We developed plastic pulley for automobile manufactured by injection molding which will reduce manufacturing cost. We have developed product design, injection molding technology especially to improve mechanical strength and phenolic molding compound with good wear resistance and high mechanical strength. We have established `Injection Compression molding` technology to improve mechanical strength of weld portion. We also developed phenolic molding compound which is composed of one step resin and long organic fiber to obtain good wear resistance and high mechanical strength. Manufacturing cost will be reduced by using injection molding combined with lower material cost of the newly developed compound. 12 figs., 2 tabs.

  10. Development of puncture resistance tire tube; Nirinsha no taipankusei kojo cube no kaihatsu

    Yamagiwa, T; Nakayama, K; Kiyota, S; Tanaka, A [Honda R and D Co. Ltd., Tokyo (Japan); Makisaka, N

    1997-10-01

    A new tire tube with a puncture resistance function was developed. The tube is a two-chamber structure having an air chamber and a liquid chamber, and the liquid chamber at the crown-side half of the tube is filled with an anti-puncture sealant during a manufacturing process. In a market test, it was confirmed that the number of puncture cases were reduced by 90 % in comparison with conventional tire tubes by using the newly developed tube. This paper describes the structure of the tube and the characteristics of the tube rubber, and the manufacturing process and durability of the tube. 3 refs., 17 figs.

  11. Advanced soft coverpad made of non-woven fabric; Soft fushokufu coverpad no kaihatsu

    Hayakawa, t; Kamezaki, K; Tokita, T [Takashimaya Nippatsu Kogyo, Aichi (Japan); Yamada, Y; Ono, H; Araki, O [Toyota Motor Corp., Aichi (Japan)

    1997-10-01

    At the present expected to enhance the product-value of automobile, it can be considered that advancement of touching and fitting feeling of seat would be important factors. For the purpose of materializing of these factors, We have noted softening of seat cover and carried out development of cover pad made of non-woven fablic. As a result of pursuing compatibility of soft feeling and durability of the cover pad, we could achieve to ensure the quality required for the material as the seat cover pad. 3 refs., 15 figs., 4 tabs.

  12. Development of air fuel ratio sensor; A/F sensor no kaihatsu

    Sakawa, T; Hori, M [Denso Corp., Aichi (Japan); Nakamura, Y [Toyota Motor Corp., Aichi (Japan)

    1997-10-01

    The Air Fuel Ratio Sensor (A/F sensor), which is applied to a 1997 model year Low Emission Vehicle (LEV) was developed. This sensor enables the detection of the exhaust gas air fuel ratio, both lean and rich of stoichiometric. It has an effective air fuel ratio range from 12 to 18 as required for LEV regulation. It has the fast light off, - within 20 seconds - to minimize exhaust hydrocarbon content. Further, it has fast response time, less than 200 msec, to improve the air fuel ratio controllability. 3 refs., 7 figs.

  13. Advanced slab polyurethane foam with feather touch; Soft feather urethane foam no kaihatsu

    Yamada, Y; Ono, H [Toyota Motor Corp., Aichi (Japan); Mori, A; Yamaguchi, N; Nakamura, T [Bridgestone Corp., Tokyo (Japan)

    1997-10-01

    Automotive seat plays an important part, which are not only retention of sitting position, but also comfort and high-class feeling. Wadding, which is a part of the seat, is a key component for the sitting comfortableness. This paper is concerned with advanced slab polyurethane foam with feather touch feeling. The compounding of formation, foaming process and reliability of mass production is studied. 2 refs., 10 figs., 3 tabs.

  14. Development of multiplexing network for air conditioner systems; Eakon yo LAN system no kaihatsu

    Matsumoto, T; Nakazawa, Y; Nakase, M; Sato, Y [Nissan Motor Co. Ltd., Tokyo (Japan); Nomura, M; Okasato, Y; Sunaga, H [Calsonic Corp., Tokyo (Japan)

    1997-10-01

    Plural air flap actuators of the air conditioner system in a vehicle have been integrated into a single-type actuator using two newly developed technologies: super-low-cost multiplexing network technology and digital motor control technology with a 1-bit A/D converter. The number of harnesses and connectors and the handling load of the air conditioner control microcomputer are reduced, so that we succeeded in sharply reducing the cost of the air conditioner system. 9 figs., 2 tabs.

  15. Development of hybrid system for mass productive passenger car; Joyoshayo ryosangata hybrid system no kaihatsu

    Abe, S; Sasaki, S; Matsui, H; Kubo, K [Toyota Motor Corp., Aichi (Japan)

    1997-10-01

    The Toyota Hybrid System has two power sources which engage depending on driving conditions. An improved efficiency gasoline engine provides the main power to drive the wheels, as in conventional automobiles. Drive power can also be supplied by an electric motor, which derives its electricity from a battery and a Generator. Fuel efficiency is further boosted by other measures, such as automatically cutting the engine when the vehicle is at a stop and regenerating the energy accumulate during deceleration. Compared with conventional vehicles with a 1.5-liter engine running in 10 {center_dot} 15 mode, the CO2 emissions are reduced by half. Moreover, with the use of a motor to reduce engine load during acceleration, HC, CO, and NOx emissions are cut significantly low levels. 13 figs.

  16. Development of Toyota new 1GZ-FE engine; Shingata V12 gasoline engine no kaihatsu

    Kawamura, H; Asahi, T; Goto, M; Endo, K; Terada, M [Toyota Motor Corp., Aichi (Japan)

    1997-10-01

    The first V-12 cylinder engine for passenger car in Japan, the 1GZ-FE, which is the status of high luxury vehicles has been developed. In order to proceed the merit of V-12 cylinder engine, Intelligent Variable Valve Timing (VVT-i) system, Slant squish combustion chamber, Iridium pole spark plug and Intelligent electronic throttle control system were introduced. Through these features this new 1GZ-FE has achieved an overwhelming smoothness and quietness and yet highest torque among the same displacement engine at low and medium engine speed. Additionally the 1GZ-FE achieved good fuel economy and high reliability which exceed any other competitors. 14 refs., 4 figs.

  17. Development of roller type side slip tester; Roller shiki side slip tester no kaihatsu

    Nishiyama, S [Hiroshima City Industrial Technology Institute, Hiroshima (Japan); Harada, S; Harada, K

    1997-10-01

    This paper presents a new development of roller type side slip tester (RTSSI). The test equipment consists of four parts, which are developed in this research. These are a roller part, a control part, a remote control part and a CRT part. In this study, we especially investigated the mechanism and performance between tire and roller. We analyzed the amount of side slip with various toe angles. The developed tester is examined under the conditions that is considered in industrial applications. We investigated the influences of toe angle, size of tire, pressure of tire, coefficient of friction between tire and roller, pushing force of tire, revolution velocity of roller, axle load and so on. The validity of the developed RTSST is confirmed under these conditions. It was found that the RTSST can be used in practical use. Some measurement results are presented in the form of parametric plots. And we also compared measurements data between the RTSST and that of flat type using several automobiles. 4 refs., 8 figs., 4 tabs.

  18. Development of refrigerator insulation with reduced CFC-11. Reizokoyo flon sakugen uretan dannetsuzai no kaihatsu

    Kai, H.; Fukuda, K.; Yoshioka, M. (Sharp Corp., Osaka (Japan))

    1992-11-10

    Polyurethane thermal insulator in which the usage of CFC-11 is 50% reduced by increasing the percentage of water has been developed for the purpose of reducing polyurethane-foaming CFC-11 used as thermal insulator of refrigerators. In this new water-intensive feedstock system, the overall OH-value in polyol was lowered; the usage of aromatic amines was curtailed; and the amount of sorbits was increased so as to secure adhesiveness at the foaming jig temperature of 35[degree]C. As for the improvement of fluidity, a combination of four kinds of polyols offered viscosity in the same level as in the conventional ones. Thermal conductivity was worsened, but the rate of its drop could be controlled below 3% by some measures such as homogenization of stock materials, choice of a suface-active agent which makes foam bubbles minute, etc. Concerning curing property which has a large effect on productivity, a reaction type amine-based catalyst delaying thickening behaviour at the time of foaming was selected and a gelling promotive tertiary amine-based catalyst which can develop foam curing promptly was combinedly used to reduce curing property from five minutes in the past to four minutes. 2 refs., 6 figs., 14 tabs.

  19. Development of practical solar-electric vehicle; Jitsuyo fukyugata solar denki jidosha no kaihatsu

    Saito, S; Fujinaka, M [Tokyo Denki University, Tokyo (Japan)

    1997-11-25

    The paper reported on a Tokyo-Nagoya travel test on a practical spread type solar-electric vehicle, Solar-EV. A comparative study was made running the same type gasoline vehicle, GV. The measured power consumption amount of Solar-EV is 57.6 kWh. By converting it into Mcal unit, an energy consumption amount of 49.5 Mcal was obtained. Further, as to GV, the energy consumption amount of 316 Mcal was obtained using the amount of supply of gasoline (mean heating value: 8.4 Mcal/h) of 37.6 l and the fuel consumption of 16.2 km/l. Accordingly, the energy consumption amount of Solar-EV became a sixth of that of GV. In the cost comparison, the cost of Solar-EV was 1,440 yen (power source price: 25 yen/kWh), which is about a third of that of GV, 3760 yen (gasoline unit price: 100 yen/l). Monocrystal Si solar cells, 270W, installed on hood/roof are connected to the main 288V system (the auxiliary 12V system is amorphous Si), and generate power 4.4 kWh during travel. A total power consumption amount of Solar-EV in the total travel (Tokyo-Nagoya) is 79.9 kWh including the auxiliary system, approximately 6% of which was to be supplied from solar cells. 1 ref., 6 figs., 3 tabs.

  20. Development of solar power generator system; Taiyoko netsufukugo hatsuden system no kaihatsu

    Kisara, K; Kumagai, T; Niino, M; Chen, L; Eguchi, K [National Aerospace Laboratory, Tokyo (Japan)

    1997-11-25

    Described herein is a new hybrid solar power generator system, in which solar energy is separated into the light and heat components by a wavelength-selective filter before being directly converted into electric power, the former for the amorphous solar cell (ASC) unit and the latter for the thermoelectric unit. These units complement with each other to enhance overall efficiency. The ASC unit should have a higher efficiency when it works on the light component, because the heat (infrared) component increases cell temperature and decreases its output. For the ASC unit, the effects of the filter have been tested. The thermoelectric unit, generating power by the Seebeck effect, should have a higher efficiency, if heat flux passing through the unit can be increased, because of increased temperature differential, to which voltage produced increases proportionally. For the thermoelectric unit, heat is collected by a parabolic mirror unit from sunbeams received by a heliostat. Characteristics of these units are grasped almost as expected by the tests. 4 refs., 11 figs., 1 tab.

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

    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.

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

    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.

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

    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.

  4. Development of pressurized internally circulating fluidized bed combustion technology; Kaatsu naibu junkan ryudosho boiler no kaihatsu

    Ishihara, I [Center for Coal Utilization, Japan, Tokyo (Japan); Nagato, S; Toyoda, S [Ebara Corp., Tokyo (Japan)

    1996-09-01

    The paper introduced support research on element technology needed for the design of hot models of the pressurized internally circulating fluidized bed combustion boiler in fiscal 1995 and specifications for testing facilities of 4MWt hot models after finishing the basic plan. The support research was conduced as follows: (a) In the test for analysis of cold model fluidization, it was confirmed that each characteristic value of hot models is higher than the target value. Further, calculation parameters required for computer simulation were measured and data on the design of air diffusion nozzle for 1 chamber wind box were sampled. (b) In the CWP conveyance characteristic survey, it was confirmed that it is possible to produce CWP having favorable properties. It was also confirmed that favorable conveyability can be maintained even if the piping size was reduced down to 25A. (c) In the gas pressure reducing test, basic data required for the design of gas pressure reducing equipment were sampled. Specifications for the fluidized bed combustion boiler of hot models are as follows: evaporation amount: 3070kg/h, steam pressure: 1.77MPa, fuel supply amount: 600kg-coal/h, boiler body: cylinder shape water tube internally circulating fluidized bed combustion boiler. 4 refs., 4 figs.

  5. Development of a robot system for converter relining; Tenro chikuro robot system no kaihatsu

    Ito, Y; Kurahashi, M [Nissan Motor Co. Ltd., Tokyo (Japan)

    1995-09-12

    In steelmaking plants, the relining work of converters requires plenty of manpower and time. Recently, the number of expert brick workers has decreased, and it has been difficult to get together the necessary number of workers for the converter relining. To solve these problems, a robot system has been developed and realized for the converter relining. The system consists of two intelligent robots and an automatic brick conveying machine. With visual function and flexibly controlled hands, the robot enables to heap up bricks in the same manner as expert workers do. The automatic brick conveying machine consists of roller conveyers and a cage lifter that convey bricks on palettes to the suitable position for the robot to easily handle. This robot system has enabled to save much labor for the converter relining. 8 figs.

  6. Development of a downhole seismic source with controlled waveform; Hakei seigyogata kochu shingen no kaihatsu

    Kuroda, T; Ikawa, T [Japex Jeoscience Institute, Tokyo (Japan); Sato, T [Meiho Engineering Co. Ltd., Tokyo (Japan); Kakuma, H [Akashi Corp., Tokyo (Japan); Onuma, H [Engineering Advancement Association of Japan, Tokyo (Japan)

    1997-05-27

    A downhole seismic source which can output continuous waves having arbitrary waveforms was developed. The development was targeted to make tomographic exploration purposed to evaluate geological properties of a ground bed before and after constructing a building in a ground several hundred meters deep from the ground surface. The source is considered to be used in an environment consisting of soft rocks or more robust rocks and having no casing. It can be used in a well hole having a diameter of 100 mm, is capable of measuring P and S waves in a distance between well holes of up to 100 m, can be used at a depth of up to 500 m, and can output waveforms having seismic source spectra of up to 1000 Hz. An oscillation actuator using laminated piezo-electric elements was used for the oscillation element. The seismic source consists of a hydraulic device to clamp the equipment onto hole walls, piezo-electric elements as the oscillation element, and an inertia weight for applying vibration from above and below. To make an oscillation, the main body is first clamped on the hole wall. For horizontal oscillation, the piezo-electric elements contained in a clamping device provide the horizontal oscillation. For vertical oscillation, the piezo-electric elements placed below the main body oscillates the inertia weight. The initially targeted specifications have been achieved. 3 refs., 4 figs., 1 tab.

  7. 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)

    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.

  8. PV glass curtain walls; Kenzai ittaigata taiyo denchi gaiheki no kaihatsu (glass curtain wall eno tekiyo)

    Yoshida, T.; Iwai, T.; Ouchi, T.; Ito, T.; Nagai, T.; Shu, I. [Kajima Corp., Tokyo (Japan); Arai, T. [Showa Shell Sekiyu K.K., Tokyo (Japan); Ishikawa, N.; Tazawa, K.

    1997-12-20

    Reported in this article are PV (photovoltaic) modules now under development for integration into building walls. First of all, the power generating capability of PV modules and appropriate use of the generated power are studied, and the performance (resistance to fire or incombustibility, strength and durability, appearance and design, and dimensional standardization) that such outer wall materials are to be equipped with are determined. Next, module development, installation technique, computer graphics-aided facade designing, and real size module-using proof test are studied before installability, the power to be generated, and designs are finalized. In the development of modules, design evaluation involves the combining of various kinds of glass, solar cells, back sheets, and fillers, and the importance is confirmed of the prevention of insulation degradation around the modules. As for the methods of installation, the gasket method and aluminum sash method, etc., are tested. In the study of facade design, it is found that various expressions are possible by properly choosing gasket colors, module types, and kinds of glass to cover the openings. 1 ref., 6 figs., 3 tabs.

  9. FY 2000 report on the results of the regional consortium R and D project - Regional new technology creation R and D. First year report. R and D of medicine toxicity assessment use hepatocyte chip; 2000 nendo chiiki consortium kenkyu kaihatsu jigyo. Chiiki consortium kenkyu kaihatsu / chiiki shingijutsu soshutsu kenkyu kaihatsu. Dokubutsu dokusei hyokayo kansaibo chip no kenkyu kaihatsu (dai 1 nendo) seika hokokusho

    NONE

    2001-03-01

    Judging that in the beginning of the toxicity test, the necessary information/knowledge are acquired not by using animal itself but only by using liver system (hepatocyte), the development was proceeded with of the hepatocyte chip substituting for the animal experiment. Studies were made in the following five fields: 1) design of functional matrices; 2) development of the pharmacological assessment technology; 3) development of cell sensing technology/biosensor fabrication; 4) study of a possibility and the limit of cell patterning technology; 5) survey of the market scale. In 1), studies were made of the establishment of the 3D culture method for hepatocyte and the construction of hepatocyte models for medicine assessment using pieces of liver. In the latter, by including capsule using the sugar introduced with galactose residue which is special sugar of hepatocyte to alginic acid and chitosan which are natural polymer and also hepatocyte isolated into sponge, aggregate was formed, and its use as a medicine assessment use liver model was tried to be made. (NEDO)

  10. FY 1996 R/D project of industrial and scientific technologies contracted with NEDO. Report on R/D of organosilicon polymers; 1996 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Keisokei kobunshi zairyo no kenkyu kaihatsu (Keisokei kobunshi zairyo no kenkyu kaihatsu) seika hokokusho

    NONE

    1997-12-01

    Organosilicon polymers are highly innovative materials having high performance and novel functions, and they can be widely applied. The purpose of this study is to establish fundamental techniques for molecular design, synthesis, material processing and evaluation of organosilicon polymers having excellent electro- and photo-functions, and advanced heat-proof, fire-proof and mechanical properties. This R/D includes (1) R/D of electrical conducting materials by organosilicon polymers, (2) R/D of novel organosilicon polymers applicable to direct lithography, (3) R/D of new silicon-based polymer materials with electro-luminous function, and (4) R/D of silicon-based polymers for new photoconductive materials. In (1), synthesis of highly conjugated polymers is investigated. In (2), novel organosilicon polymeric materials have been developed, which would be applicable to direct lithography of electronic circuits, and which could contribute to simplification of the circuit formation process. In (3), the research aims at development of new silicon-based polymer materials with luminescent function which can be applied to the large size electro-luminescent display devices. In (4), new materials with visible light absorption have been synthesized through the molecular design and synthesis. The photo-carrier generation was observed. 107 refs., 86 figs., 23 tabs.

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

    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.

  12. 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)

    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

  13. Development of Fresnel lens for improvement of rear visibility; Shikai kojo Fresnel lens no kaihatsu

    Iwamoto, K; Sanada, C; Tsukino, M [Nissan Motor Co. Ltd., Tokyo (Japan)

    1997-10-01

    Fresnel lenses have been widely used to increase the visual field around vehicles for drivers. However, internal reflection in these lenses has been an obstacle in producing dear images. This internal glow is generated by incident light from an unexpected direction reflecting on the non-lens surface or radiating from the non-lens surface of the Fresnel lens. The cause of internal glow has been made dear combining louver film with the lens. The newly developed technology removes obstacles in producing dear images by reducing internal glow. 7 figs.

  14. Development of film antenna for diversity reception; Diversity taio film antenna no kaihatsu

    Shigeta, K; Taniguchi, T; Kubota, K [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    Based on the principle of capacitance-loaded window antennas, a new film antenna construction pasting an antenna element on a defogger element printed on a rear window was found. The film antennas show high reception performance, and can be used as television diversity antennas or a VICS-FM multiplex antenna. This paper describes the antenna design concept, the antenna construction and the application to a recreational vehicle which styling is 1.3-Box wagon for the electric accessory. 2 refs., 11 figs.

  15. Development of lane change aid system; Lane change aid system no kaihatsu

    Uemura, H; Yoshida, T; Butsuen, T [Mazda Motor Corp., Hiroshima (Japan); Sakai, N; Nakano, T; Nakamoto, T

    1997-10-01

    We have developed a lane change aid system, which detects vehicles behind in adjacent lanes with CCD images, shows the driver the information of vehicle location with a head-up display, and warns him/her if necessary. By comparing the brightness on two CCD images, distance distribution along several CCD lines is measured. To assure the effective vehicle detection on public roads, we have developed a detection algorithm which distinguishes vehicles and guard-rails by observing the patterns of measured distances. We will show the system configuration, detection logic, and the system evaluation on public road. 5 refs., 12 figs.

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

    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.

  17. Development of hot water utilizing power plants in fiscal 1999. Development of technology to collect geothermal resources in great depths/Development of technology to excavate geothermal resources in great depths (Designing whole development); 1999 nendo nessui riyo hatsuden plant nado kaihatsu seika hokokusho. Shinbu chinetsu shigen saishu gijutsu no kaihatsu / shinbu chinetsu shigen kussaku gijutsu no kaihatsu (zentai kaihatsu sekkei)

    NONE

    2000-03-01

    Technological development has been made on excavation of geothermal wells, which are dense, hard, and high in temperature and pressure, in developing geothermal resources in great depths. This paper summarizes the achievements in fiscal 1999. This fiscal year has performed the excavation test using an actual well to verify the reliability in practical use of the developed heat-resistant and durable bit. The test was executed by using a bit with a diameter of 8-1/2 inches in a ground bet having a maximum temperature of 300 degrees C in the Yamakawa geothermal field. As a result, good site evaluation was obtained that the wear and tear after lift-up showed no problems, and sufficient performance was verified in the drilling rate and durability. In addition, the low specific gravity cement for high temperature use that has been newly developed was given a cement mixing test to identify its workability at site and hardening properties, at a test well with a temperature of about 40 degrees C in the Okiri geothermal field. The actual well test was performed in a large-scale lost water occurred in a return well during an excavation by Nittestu-Kagoshima Geothermal Company. Effects were recognized in measures to prevent water loss. (NEDO)

  18. Development of mechanical shield docking method; MSD (mekanikaru/shirudo/dokkingu) koho no kaihatsu

    Yokota, I. [Tokyo Metroplitan Government Water Supply Bureau, Tokyo (Japan); Watanabe, T.; Hagiwara, H. [Shimizu Corp., Tokyo (Japan); Nishitake, S. [Mitsubishi Heavy Industries Ltd., Tokyo (Japan); Endo, M. [Obayashi Corp., Osaka (Japan)

    1993-09-20

    For the construction works of underground tunnels, mainly the shield method has so far been adopted, but in order to make underground junction of shield machines, the method of utilizing a shaft or the method of improving the earth by the auxiliary methods such as chemical feeding have been adopted. However, either method has restriction for its practical application. The MSD method uses no auxiliary method at all, can join directly two shield machines mechanically underground, has high water stoppability at its junction, is applicable for either of shield machines of slush type or mud pressure type, and is the method to solve totally various problems in the existing joining methods. This method is the one that two shield machines, one on the out-pushing side and another on the in-receiving side, progress from both sides and face each other, then the both are joined mechanically for unification by pushing a steel penetration ring built-in the out-pushing shield machine to the rubber ring built-in the penetration chamber of the in-receiving shield machine. After joining, the shield machines are disassembled for removal leaving the junction only, and the secondary lining is done with concrete. 6 figs.

  19. Power conditioner without isolation transformer; Toransuresu power conditioner no shohin kaihatsu

    Okado, C; Itami, T; Kimoto, K [Toshiba Corp., Tokyo (Japan)

    1996-10-27

    A light-weight downsized and high efficiency transformer-less type 4 kW power conditioner (inverter) has been developed. This power conditioner insures the system interconnection protection by monitoring the voltage of two single-phase three-line circuits. The power conditioner has weight of 17.5 kg and efficiency of 94%. Potential fluctuation of photovoltaic cells due to the switching of power devices at the inverter was reduced. Output capacity was reduced in the low input voltage range. Outflow of DC component was prevented in high accuracy by usually correcting the zero point drift of detector, and by using the current detector with excellent linearity. To detect the DC ground fault, and to trip the output side breaker locating at the ground fault current pass, a zero phase converter detection circuit has been developed, by which the DC component can be detected at the DC input side. As a result of performance verification, the efficiency, power factor, EMI level, protection of outflow of DC component, protection of ground fault, protection of single operation detection, and noise level were satisfied. This system is prospective for the diffusion of photovoltaic power generation in the future. 3 refs., 8 figs., 1 tab.

  20. FY 1998 result report on development of superconductive power application technologies. Pt. 1. Research and development of superconductive wire materials / Research of a total system / Research and development of a freezing system / Demonstration tests; 1998 nendo chodendo denryoku oyo gijutsu kaihatsu. 1. Chodendo senzai no kenkyu kaihatsu, chodendo hatsudenki no kenkyu kaihatsu, total system no kenkyu, reito system no kenkyu kaihatsu, jissho shiken

    NONE

    1999-03-01

    Superconductive technologies are introduced into electric power devices for attempts of achieving higher stabilization, density and efficiency, as well as size and weight reduction and improvement in performance of the devices. The project has been worked on since fiscal 1998 as part of the New Sunshine Project. Fiscal 1998 being the eleventh year has taken the following subjects as the research promotion policies: establishment of plans targeted at accomplishment of the goals of the project; adequate and reliable implementation of verification of technological assignments; and steady and efficient demonstration tests. Subsequent to the previous year during which site demonstration tests were completed on a low-speed responsive model machine, the site demonstration test has begun on the ultra high-speed responsive model machine as the final stage of the project. The ultra high-speed responsive model machine was coupled with a freezing system and a load synchronizing machine, and different kinds of test were carried out where good results were obtained. Researches were conducted on characteristics improvement and device element technologies aimed at achieving the practical application level by utilizing the respective features of AC metal-based wires and oxide-based wires, where sound results were obtained. Also in an improved freezing system, valuable data were attained as part of establishing the basic technologies for a superconductive power generation system. (NEDO)

  1. Achievement report for fiscal 1996 on the research and development of superconductor technology to power generation. Pt. 1. Research and development of superconducting wire, generator, total system, and refrigeration system; and verification test; 1996 nendo chodendo denryoku oyo gijutsu kaihatsu seika hokokusho. 1. Chodendo senzai no kenkyu kaihatsu, chodendo hatsudenki no kenkyu kaihatsu, total system no kenkyu, reito system no kenkyu kaihatsu, jissho shiken

    NONE

    1997-12-01

    In the research and development of superconducting wires, studies are conducted to increase the current capacity of NbTi and Nb{sub 3}Sn metal wires and to improve their properties, and to increase the current capacity of oxide materials and improve their performance making full use of the features of each manufacturing method. In the development of superconducting generators, a slow excitation response type is tested for verification, and a good result is attained; and a quick excitation response type is tested for field winding static excitation, and good performance is exhibited. Using the results so far achieved, the 200,000kW class pilot machine concept design is reviewed. In the study of total systems, feasibility is studied of a quench test for the 70,000kW class machine through simulation analyses, etc. In the development of refrigeration systems, efforts are exerted to improve on the conventional type in terms of reliability and to further improve on the improved version in terms of performance and space-saving feature. One of the endeavors involves the development of a He Brayton cycle turbine driven compressor. A multilayer cylindrical rotor is verified in terms of functions, characteristics, reliability and durability, and various data are collected toward the development of a pilot machine. (NEDO)

  2. Synthesis of new erodable polymers response to environmental stimuli; Atarashii kankyo chowagata bunkaisei plastic no kaihatsu

    Kato, M; Nagasaki, Y [Science University of Tokyo, Tokyo (Japan). Faculty of Industrial Science and Technology

    1997-02-01

    This report relates to the designing of functional materials that decompose in response to various signals. A derivative of {alpha}-bromomethylstyrene is caused to act on the living anions of {alpha}-methylstyrene for the synthesis of a pyrolytic polymer having unsaturated groups at its terminals. The terminal double combinations of this polymer split under the influence of heat, acid, or base for depolymerization which is quantative, and the decomposition temperature may be controlled by replacing terminal phenylallylic groups with methyl groups or phloro-groups. Furthermore, a novel polythyramine polymer is synthesized with its principal chain constituted of NCH2CH2Si, the principal chain easy to disintegrate when exposed to an electron beam. The polymer is signal-responsive and may be patterned by use of an electron beam. As a temperature-responsive polymer with the hydrolytic feature controlled, poly(thyroxy ethylene glycol) is obtained from a derivative of diaminosiloxane and oligo-oxyethylene. This is a high-mobility, temperature-responsive material whose hydrolysis may be controlled. 3 refs., 2 figs.

  3. Development of practical diet for aquaculture of Japanese flounder; Gyofun wo sakutenshita hirameyo shiryo no kaihatsu

    Kikuchi, K.; Furuta, T.

    2000-07-01

    Feeding experiments were conducted to examine the potential use of defatted soybean meal (SBM) in combinations with blood meal (BM), corn gluten meal (CGM) and freeze dried meat of blue mussel (BMM) as a partial replacement of fish meal (FM) in the diet of Japanese flounder. Availability of CGM in combinations with BM and/or BMM was also examined. Juvenile fish of about 4 g in initial body weight were fed diets to satiation twice daily, 6 days per week for 8 weeks at 20 degree C in both feeding experiments. Weight gain of fish fed diet replacing 45% FM protein with SBM was not different from that of fish fed the control diet containing FM as a protein source, however, feed efficiency (FE) in fish fed the SBM diet was significantly lower. Growth and feed performance of fish fed diet replacing 45% FM protein with SBM and BM were comparable to those of fish the control diet. Inclusion of 5% BMM for equal amount of SBM in the SBM-BM diet improved the growth and FE of the flounder remarkably and both values were significantly higher than those in the control. Replacing 55% of FM protein with SBM and CGM or SBM and BM resulted in poor growth performance. There were not marked differences in hematological characteristics together with proximate composition of the whole body of cultured fish fed the dietary treatments. Weight gain and FE of fish fed diet replacing 40% FM protein with CGM were inferior to those of fish fed the control diet containing FM as a protein source. Replacement of 40% FM protein with CGM and BM made those parameters worse. Inclusion of BMM in CGM-BM diet did not improve the growth of fish. Adverse effects of replacing FM protein with CGM and/or CGM and BM were stronger with increasing replacement level. These results indicate that SBM is highly available as alternative protein source for fish meal in the diet of Japanese flounder. SBM in combination with BM successfully replace about 45% of FM protein in the diet without supplemental amino acids. Furthermore, it is suggested that more replacement can be attained with inclusion of 5% BMM in the SBM diet. CGM is not considered to be useful ingredient on practical bases. (author)

  4. Jet engine R and D and I; Watashi to jet engine kenkyu kaihatsu

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

    1998-06-10

    My efforts towards at the development of aeroengines since the end of the war are described. The J3-7 engine propelled the T1 trainer plane, and was installed as booster aboard the P2J antisubmarine patrol aircraft. It was the first jet engine that Japan produced after the end of the war, and had been in use until quite recently. I took part in the construction of a prototype of the JR100 series designed to serve as VTOL (vertical take-off and landing) aircraft lift engines, and in the test thereof. As the shift from turbojet to turbofan proceeded, I participated in the development of the FJR710 engine under the guidance of National Aerospace Laboratory, and the product was installed aboard an experimental STOL (short take-off and landing) aircraft Asuka. I next joined a Defense Agency initiative for a reheat turbofan to replace the J3 aboard trainer plane, and the result was the low bypass ratio/high output F3 engine. In 1989, Ministry of International Trade and Industry decided for a large-scale project of developing an engine for a next-generation supersonic transport, and the HYPR (Super/Hypersonic Transport Propulsion System) project was started. The project was participated in by manufacturers from overseas, which were GE, P and W, RR, and SNECMA. The foreign corporations worked on an equal footing with the Japanese parties, and collaboration between the participants was smooth, with each party endeavoring in the field they were good at. The project will be concluded as scheduled in fiscal 1998. (NEDO)

  5. Assessment report on the development of functionally inclined material; Keisha kinosei zairyo no kaihatsu hyoka hokokusho

    NONE

    2000-03-01

    Concerning a project whose aim is to develop heat resistant engine members through the application of the concept of functionally inclined materials, deliberation and assessment are made of the meaning of its implementation, validity of the research program, research achievement, etc. The project deals with a specimen, diameter 150mm or more and thickness 5mm or more, built of a zirconia/stainless steel-based functionally inclined material, and its goal is to develop technologies for optimizing the baking process for the said specimen, baking system and related devices, assessment technique, tribological assessment technique, etc., and it is inferred that these targets are reasonable. As the result of this research, an energy-efficient (power consumption reduced to 1/3 to 1/5) practical rapid sintering system is constructed. Basic data are collected relative to the tribology of the functionally inclined material, and it is proved that it is feasible to use the material for engine members. The process technology, assessment technology, and devices developed under this project are the first in the world, and are highly evaluated. (NEDO)

  6. Study on development of adsorbent of acetaldehyde; Acetaldehyde yo kyuchakuzai no kaihatsu ni kansuru kenkyu

    Noda, T. [Nippon Steel Corp., Tokyo (Japan); Suzuki, M. [The University of Tokyo, Tokyo (Japan). Institute of Industrial Science

    1997-07-10

    The adsorption of acetaldehyde by porous ceramics impregnated with hydrazinium aluminum sulfate (HAS) is studied. Silicagel, activated alumina, activated clay, and activated carbon are compared, and it is found that silicagel and activated clay are suitable as a substrate for HAS impregnated adsorbent. The adsorption mechanism of acetaldehyde by the adsorbent is believed to be one in which acetaldehyde reacts with hydrazinium and yields acetaldazine. The adsorption capacity of the adsorbent at low acetaldehyde concentration of 0.1 ppm was as large as 1.36 mol/kg. This adsorption capacity at 0.1 ppm acetaldehyde concentration is remarkably larger than that of conventional activated carbon. Hydrazinium decomposes easily in the air because it is a strong reducing agent and reacts with oxygen or carbon dioxide. But hydrazinium impregnated on porous ceramics with HAS becomes more stable and maintains reactivity with acetaldehyde for longer than six months. An adsorbent made of porous ceramics impregnated with HAS is useful as a deodorant for acetaldehyde. 8 refs., 6 figs., 6 tabs.

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

    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.

  8. Current status and future of space development; Uchu kaihatsu no genjo to shorai

    Matokawa, Y. [Institute of the Space and Astronautical Science, Tokyo (Japan)

    1998-05-01

    Space development has an aspect of contributing to livelihoods. Various types of satellites, such as those for weather forecasting, TV broadcasting, international communication (telephone and internet systems), and GPS-aided car navigation, have been already launched. Space science of the 20th century roughly tells the history of some 15 billion years from the big bang to birth of mankind as a spectacular story. The international space station, construction of which is to be started in 1998, should drastically enlarge man`s experiences in the universe. The space activity plans for the future draw various dreams, such as spaceplane, lunar base, solar generator satellite, Mars base, space colony, skyhook, and so on. Dreams of mankind have been eventually realized in the past history. It is time to deliberately assess what are meant by the space development of the 20th century, and to review ideal directions of the space development for the next 100 or 1000 years. 6 figs.

  9. FY 1997 R/D project of industrial and scientific technologies contracted with NEDO. Report on R/D of organosilicon polymers; 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Keisokei kobunshi zairyo no kenkyu kaihatsu (keisokei kobunshi zairyo no kenkyu kaihatsu) seika hokokusho

    NONE

    1998-03-01

    The purpose of this study is to establish fundamental techniques for molecular design, synthesis, material processing and evaluation of organosilicon polymers having excellent electro- and photo-functions, and advanced heat-proof, fire-proof and mechanical properties. This R/D includes (1) R/D of electrical conducting materials by organosilicon polymers, (2) R/D of novel organosilicon polymers applicable to direct lithography, (3) R/D of new silicon-based polymer materials with electro-luminous function, and (4) R/D of silicon-based polymers for new photoconductive materials. In (1), synthesis method of regular polymers with a 3-D structure was developed. Non-volatile dopants were developed, and structures of polymer-dopant composites could be controlled. In (2), precise control of conductivity was examined. Material processing and evaluation techniques were also examined through stabilization of polysilane thin films, optimization of pattern forming conditions, and precision of patterns. In (3), new silicon-based polymers have been synthesized. In (4), two kinds of polymers have been synthesized for development of materials with high photo-carrier generation efficiency and high mobility. 72 refs., 71 figs., 22 tabs.

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

    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)

  11. Development of ultra-low pressure reverse osmosis membranes; Choteiatsu gyakushintomaku no kaihatsu

    Hirose, M.; Ito, H.; Ohara, T. [Nitto Denko Corp., Osaka (Japan)

    1998-06-05

    Described herein is development of ultra-low pressure reverse osmosis (RO) membranes. The composite RO membrane, which is now widely used, has a cross-sectional structure consisting of an ultrafilter membrane as the support and a very thin skin layer responsible for filtration. It is confirmed that the skin layer is of a pleated structure. Growing this structure can greatly accelerate permeation of water without damaging arresting and durability characteristics of the membrane, and hence is a desired approach. Utilization of molecular structure simulation of the skin layer materials is investigated by the molecular dynamics. The results show that the stable structure of the material for the skin layer in the RO membrane is a network structure with regularly arranged honeycombs, when it should arrest at least 99% of salt. These techniques serve as the bases for development of the ultra-low pressure RO membranes (ES Series), where the skin layer is made of cross-linked, totally aromatic polyamide. The membrane passes twice as large a quantity of water as the conventional one, is highly resistant to chemicals, and arrests 99.7% of salt. 3 refs., 4 figs.

  12. CAE for the development of two-wheeled vehicles. Nirinsha kaihatsu no tame no CAE

    Hirose, T. (Suzuki Motor Co. Ltd., Shizuoka (Japan))

    1992-11-01

    Applications of CAE to the development of two-wheeled vehicles were outlined. The performance estimation program for 4-cycle engines featured by its easy execution was presented illustrating an estimation model and estimated results, and the FEM generator for strength/rigidity analysis CAE indicating analytical examples of a piston and frame which is featured by easy formation of models and easy execution of advanced analyses by beginners. The vibration analysis system to estimate exciting forces from engine specifications and to estimate vibration levels of bodies with FEM models was also presented together with the estimation system of rider's vibration sensitivity. Furthermore, the noise suppression/ exhaust pressure calculation program to support muffler designs by simultaneous calculation was presented together with the thermal flow analysis program featured by easy calculation with more suitable models illustrating the analytical example of thermal flow in a large luggage box. 7 refs., 15 figs.

  13. Development of lowdrag aerodynamically stable with indented processing; Indento kako wo hodokoshita seishin keburu no kaihatsu

    Hojo, T.; Yamazaki, S.; Okada, H.

    1998-10-29

    A wind-resistant design of cables for large cable-stayed bridges is required as a measure against rain-wind induced vibration. In such bridges, many cables are arranged in a short pitch, which causes a large drag force on the cables. Therefore, reduction of drag force on cables is essential for rationalizing bridge design, as well as restraint of vibration. This paper describes studies on a new cable having both a low drag co-efficient force and rain-vibration suppressing effects. Through many investigations using wind tunnel tests, an indented cable was developed as a countermeasure against rain-wind induced vibration, and finally it was applied to the Tatara Bridge which is the largest cable-stayed bridge in the world. (author)

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

    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.

  15. Fiscal 1996 result reports of the researches under consignment from NEDO. Developments of fuel cell technology, polymer electrolyte fuel cell, fuel cell power generation system technology, and high-voltage type several tens kW class distributed power source system; Shin energy sangyo gijutsu sogo kaihatsu kiko itaku gyomu 1996 nendo seika hokokusho. Nenryo denchi gijutsu kaihatsu, kotai kobunshigata nenryo denchi no kenkyu kaihatsu, hatsuden system gijutsu kaihatsu, koden`atsugata suju kW kyu bunsan dengen system no kaihatsu

    NONE

    1997-03-01

    This paper precisely reports the research result on development of fuel cell technology in fiscal 1996. On verification of cell durability, the cell test result in hydrogen including CO of 100ppm using Pt-Ru catalyst as CO resistant catalyst showed that the loss percent of cell voltage decreases with an increase in Ru content. On development of stack technology, the carbon humidification plate superior in chemical stability was developed as one of the parts for layered stacks. The separator with a water- permeable carbon plate and serpentine flow fields was fabricated for highly layered stacks, and achieved the target performance in single cell power generation test. On establishment of design basis for compact fuel processor, the bench-scale test was conducted of Ru/{gamma}-Al2O3 and Pt-Ru/{gamma}-Al2O3 catalysts as advanced CO selective oxidation catalyst for CO reducers. On demonstration test for the several tens kW class stationary power plant, the system configuration of power generation plants using natural gas as fuel was studied. 106 figs., 38 tabs.

  16. Element analysis of Japanese traditional papers by PIXE method

    Suzuki, Tatsuya; Yasuda, Keisuke; Tani, Teruhiro

    2000-01-01

    The Japanese papers, 'washi', are made from the bast fibers of the plants. Since washi have the informations of the raw material plants, there is potentiality of the identification of the production place by the element analysis of the washi. Three kinds of washi made of kozo, which have different habitats, were prepared. The elements in their washi were measured by the PIXE. It was confirmed that the amount of elements included in the washi depend on the habitats of their raw material plants. (author)

  17. FY 1980 Report on results of Sunshine Project. Development of coal liquefaction techniques (Development of materials for the coal liquefaction plant); 1980 nendo sekitan ekika gijutsu no kaihatsu seika hokokusho. Sekitan ekika plant zairyo no kaihatsu

    NONE

    1981-03-01

    A 1 T/D solvent-extraction type coal liquefaction test plant was constructed and operated to obtain the technical data for the design of, and establish the techniques for, an efficient coal liquefaction plant. The FY 1980 program includes surveys on the materials for coal liquefaction plants, covering those already developed and under development, to clarify the problematical points; drafting the test schedules; and conceptual designs of the material testing facilities. The major problems involved in the materials for coal liquefaction plants include erosion by fluidizing coal slurry, hydrogen embrittlement of the reactor materials, and corrosion by the liquefaction products (e.g., stress-corrosion cracking of austenitic steel, and corrosion by organic acids). The surveys on materials research trends suggest that USA seems to concentrate their research efforts on the reactor materials. The corrosion tests are mostly of in-plant tests, but the stress corrosion and slurry erosion tests are conducted on a laboratory scale. The conceptual designs are drawn for some testing units, e.g., the loop type material testing unit and basic testing unit for jet-spray type slurry erosion. (NEDO)

  18. Ultimate evaluation report on research and development of basic technologies for next-generation industry. Conductive polymeric materials; Jisedai sangyo kiban gijutsu kenkyu kaihatsu saishu kenkyu kaihatsu hyoka. Dodensei kobunshi zairyo

    NONE

    1991-05-01

    Basic technologies are established that equip polymeric materials (insulators in general) with conductivity similar to that of metals for the realization of novel conducting materials characterized by light weight, high resistance to corrosion, and ease of machining, and for the manufacture of novel electrical/electronic materials having new functions different from those of conventionally used metals. The aims are to realize a conductivity of 10{sup 5}S/cm or more, to manufacture materials sufficiently stable when left in the ordinary or inert atmosphere, and to manufacture materials which may be machined into proper shapes as required in the industry. The results of the 10-year-long development endeavor greatly contribute to the creation of high-level materials, the systematization of technologies, and the elucidation of the conducting mechanism. In relation to polymeric materials, in particular, a new technology is developed that equips, with high reproducibility, polymeric materials with conductivity similar to that of silver or copper; a graphitic material is created for the first time provided with conductivity superior to that of metals; and conducting polymeric materials are equipped with an easy-to-machine feature. A great contribution is accomplished to the production of superconductivity in organic charge-transfer complex crystals and to the elucidation of the conducting mechanism. (NEDO)

  19. R and D project for large industrial technologies in fiscal 1989. Report on achievements in R and D of robots for critical works; 1989 nendo seika hokokusho. Ogata kogyo gijutsu kenkyu kaihatsu jigyo. Kyokugen sagyo robot no kenkyu kaihatsu

    NONE

    1990-03-01

    Research and development have been performed on basic technologies common to different types of robots to carry out works in critical conditions. This paper summarizes the achievements in fiscal 1989. In the R and D of sensor technologies, a prototype tri-axial one-millimeter sensor array and a signal processing device were produced and evaluations were given. A prototype production and evaluations were made on a system that can recognize comprehensively the slip, hardness, and moment as the tri-axial tactile information. In the R and D of motive force technologies, discussions were given on improvement of sensitivity of the torque sensor in the actuator for force control. Design and prototype fabrication were carried out on a speed reducer integrated actuator having a torque sensor for the manipulator's elbow joint. In addition, a force controlled controller was fabricated on a trial basis, which compensates the non-linearity of the force controlled actuator by means of software control. In the R and D of the robot languages, an application program was prepared on a representative work related to movements of a critical work robot. Verification was also conducted on the reasonability of the grammar specifications. (NEDO)

  20. Research and development of basic technologies for the next generation industries, 'environment resistance strengthened elements'. Evaluation on the second term research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'Taikankyo kyoka soshi'. Dainiki kenkyu kaihatsu hyoka

    NONE

    1986-03-31

    In the research and development of the environment resistance strengthened elements with emphasis placed respectively on radiation resistance, heat resistance, and integration degree according to specific requirements in the using environments, the second term has developed an integration technology and its evaluation technology based on the achievements in the first term. In developing the heat resistant element technology, the technology to grow {beta}-SiC crystals was expanded to obtaining thin film crystals with high migratory performance by using higher temperatures. At the same time, development was performed on a technology to manufacture multiple number of transistors on one substrate, such as the doping technology and etching technology. Using this technology, schottky diodes and p-n junction elements being the basic structures of MES-FET and bipolar transistors were fabricated. In the evaluation and testing technology, the {gamma} dose measuring method using TLD was improved, the traceability of {gamma} ray irradiation amount was assured, the simplified irradiation testing method using X-ray was established, and the heat resistance testing technology for electronic parts was established. Furthermore, attempts were made on enhancing radiation resistance of the elements, such as in MOS silicon integrated circuit, bipolar silicon integrated circuit, and compound semiconductor integrated circuit. (NEDO)

  1. Research and development of basic technologies for next-generation industry. Evaluation of 1st-phase research and development of 3-dimensional circuit devices; Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Sanjigen kairo soshi daiikki kenkyu kaihatsu hyoka

    NONE

    1985-03-30

    The aim is to develop basic technologies relating to 3-dimensional circuit devices with an ultrahigh-density accumulation of functions therein for the embodiment of ultra-small high-performance data processing devices or artificial brain-like multiple-function data processing devices. To be developed are laminate-structure devices which have an ultrahigh-density accumulation of logic and memory functions or a complex accumulation of functions including signal and sensor functions. In the 1st phase, importance is attached to the development of a multilayer crystalline structure, which is the most elementary in the development of 3-dimensional circuit devices, and of processing technologies for them. Propositions are made and analyses are conducted relating to the enlargement of exposure region in synchrotron radiation lithography, development of a maskless beam process of a resolution of 0.1{mu}m, development of a focused ion beam device, etc. Recrystallization methods using a laser beam or a linear electron beam are developed for the growth of multilayer crystals, and are proved to be effective. The application feasibility of a flat deposition dry process etc. to laminate processing technologies is demonstrated. Concerning integration technologies, some laminated circuit devices are experimentally fabricated, and their behavior is determined. The goals of the 1st phase are found achieved. (NEDO)

  2. Industrial science and technology research and development institutions in fiscal 1999. Report on achievements in research and development of human media; 1999 nendo sangyo kagaku gijutsu kenkyu kaihatsu seido. Human media no kenkyu kaihatsu seika hokokusho

    NONE

    2001-03-01

    In order to give the society with the full picture of human media at an early time, actual problems in industries were taken up. This paper summarizes the sensitivity agent to support sensitivity of individuals, the human media database, the urban environment human media aiming at symbiosis of nature with artificial environment, and the achievements of comprehensive investigations and researches in fiscals 1999 and 2000. Activities were taken in the following four areas: 1) research and development of the sensitivity agent and human media database, 2) research and development of the urban environment human media, 3) comprehensive investigations and researches, and 4) investigations on technological trends in foreign countries. In Item 1), discussions were given on the technology to present full-color images at high accuracy, the image sensitivity retrieval technology, and the multi-dimensional interface technology for the human media database. In studying the basic human media technology, discussions were given on the basic sensitivity modeling technology, and the sensitivity agent mechanism. (NEDO)

  3. Fiscal 1994 entrusted task report. Surveys of advanced natural gas development and efficient utilization (Survey of coal hydrogasification technology development); 1994 nendo tennen gas kodo kaihatsu yuko riyo chosa tou itaku gyomu hokokusho. Sekitan suiten gaska gijutsu kaihatsu chosa

    NONE

    1995-03-01

    For the establishment of a practical process for substitute natural gas (SNG) production, technological and economical assessments were made, and tasks to discharge for the development were discussed. In this fiscal year, the results of surveys conducted in the past five-year period were compiled, and studies were made to prepare for a smooth transition to the element research stage. Findings obtained are described below. SNG producing technologies need to be developed, with the demand for SNG increasing sharply, to further stabilize the base for SNG supply; coal which is abundantly available should be used as the material for SNG; and coal hydrogasification, among various methods for producing SNG from coal, is the most suitable in view of efficiency and cost performance. It was also found after a prolonged study for the improvement of efficiency and cost performance that probabilities were high that the yield of BTX (benzene, toluene, xylene) would increase and cost performance would improve. Besides, a basic plan and an element technology research plan were prepared for the development of the ARCH (advanced rapid coal hydrogasification) process. (NEDO)

  4. Research and development of basic technologies for the next generation industries, 'three-dimensional circuit elements'. Evaluation on the research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'sanjigen kairo soshi'. Kenkyu kaihatsu hyoka

    NONE

    1991-04-01

    Research, development and evaluation were performed with an objective of establishing the basic technology related to three-dimensional circuit elements that integrate functions at ultra-high density. For the basic technology of lamination, the SOI technology suitable for the three-dimensional circuit elements was developed, and it has become possible to manufacture high-quality multi-layered crystalline structure by means of annealing that uses laser and electron beam. In addition, a lateral epitaxial technology for solid phase was developed, and the base to be applied to the three-dimensional circuit elements was established. Furthermore, the technology to put thin film circuits together would be useful for high-density integration in the future. The three-dimensional circuit makes parallel processing in each segment possible, whereas a possibility was shown that the processing can be performed at much higher speed than before. Actually a prototype three-dimensional circuit equipped with functions for parallel processing and judgment processing was fabricated. The image pre-processing which has been impossible on the real time basis in the conventional two-dimensional integrated circuit was realized in a speed as fast as milli-second order. These achievements lead to a belief that the targets for the present research and development have been achieved. (NEDO)

  5. FY 1998 Report on development of technologies for commercialization of industrial solar systems. Summary of the abstracts (Research and development management); 1998 nendo sangyoyonado solar system jitsuyoka gijutsu kaihatsu seika gaiyo sogoban. Kenkyu kaihatsu kanri

    NONE

    1999-03-01

    The FY 1998 programs for development of technologies for commercialization of industrial solar systems include those for freezing/refrigeration systems utilizing solar heat, and international joint programs for development of technologies for the solar heat-utilizing systems. The studies are also conducted to draw the technological development programs for the solar heat-utilizing systems to be developed in the future. For development of the solar heat-utilizing freezing/refrigeration systems, the efforts are directed to extending service life of hydrogen occluding alloy to at least 10 years, which is one of the final targets. High reversibility up to 1,000 cycles is confirmed with the alloy working at low temperature for generating low-temperature heat. The international joint programs for technological development include technology evaluation of lumber drying by solar heat by operating the pilot plant, training of engineers and study on commercialization of the concept in Republic of Indonesia. The studies on technological development of solar heat-utilizing systems include those on classification of the solar heat-utilizing systems by area and utilization type, and evaluation of operating temperature levels and the merits and themes/problems. (NEDO)

  6. 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

    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)

  7. Fiscal 1999 geothermal development promotion survey. Development potentiality survey - Strategic survey/nation-wide survey (Report on districts in Fukushima Prefecture); 1999 nendo chinetsu kaihatsu sokushin chosa. Kaihatsu kanosei chosa - senryakuteki chosa zenkoku chosa (Fukushimaken chiiki hokokusho)

    NONE

    2000-08-01

    For the effective implementation of the survey, data in existence were reanalyzed for the Bandai-Azuma district and Minami-Aizu/Nasu district, and a wide area geothermal model was built. Using the model, exploitable resources were assessed and a prioritized survey introduction program was worked out for the promotion of geothermal development. In compliance with the strategic survey implementation manual, the Bandai-Azuma district was assessed, and the northeastern-eastern foot area of Azuma Volcano and the northern foot area of Adatara Volcano were extracted as areas promising geothermal energy development. The Monte Carlo method was applied to the prioritized survey area at the northeastern foot of Azuma Volcano, and then it was estimated that, with a probability of not less than 90%, the exploitable resources would be 6.4MWe in the case of data accuracy of 0.5 or more and 12.0MWe in the case of data accuracy of 0.4 or more. Selected as promising areas in the Minami-Aizu/Nasu district were the Yanaizu-Nishiyama area, the neighborhood of Nasudake-Chausudake, and the neighborhood of Shiobara-Fuji. (NEDO)

  8. Fiscal 1999 achievement report on the venture business assisting type regional consortium - Minor business creation base type. Development of sodium hypochlorite activating system; 1999 nendo venture kigyo shiengata chiiki consortium kenkyu kaihatsu seika hokokusho. Jiaensosan natrium kasseika sochi no kaihatsu

    NONE

    2001-03-01

    The aim is to develop and widely diffuse a cleaning, sterilizing, and disinfecting system (chemicals and device) which is nearer to the best. A safety-conscious diluting/mixing technology was developed by which acid and sodium hypochlorite were mixed without generating any noxious gas. Using this technology, a mixing tube was developed, capable of homogeneously diluting chemicals in raw water and mixing them homogeneously. How the dilution and mixing occurred in the mixing tube was measured by an electric conductivity meter for evaluation, data on the state of diluting of the solution were plotted in a graphic chart for study, a comprehensive deliberation was made of performance, cost, etc., and then a device was experimentally constructed. A concentration level detecting sensor section and a metering pump were developed. The pH adjustment and disinfecting effect were assessed using various acids, and then it was found that the acetic acid was the most suitable in view of safeness, disinfecting effect, stability, and ease of adjustment. Based on the result of a comprehensive technical survey, a system was designed suitable for artificial dialysis, food processing, and cleaning and disinfecting of endoscopes. A prototype was built, and the development effort progressed to reach a level where a prototype was built and subjected to a field test. (NEDO)

  9. 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

    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)

  10. FY 1999 Report on research and development of power generation by solid electrolyte fuel cell. Research and development of solid electrolyte fuel cell; 1999 nendo nenryo denchi hatsuden gijutsu kaihatsu kotai denkaishitsugata nenryo denchi no kenkyu kaihatsu kenkyu seika

    NONE

    2000-06-01

    This project is aimed at establishment of the module basic technology and commercialization of the solid electrolyte fuel cell in the early stage by designing, construction, operation and performance evaluation of a several kW-class module which incorporates the cylindrical cell fabricated by the wet process. The FY 1999 R and D efforts include (1) cell performance demonstration study: the cylindrical single cell fabricated by the wet process is demonstration-tested to determine the initial performance and durability for continuous operation, thereby comparing the external reforming with internal reforming in output, with the internal reforming rate as the parameter, (2) development of a several kW-class module: the adequate cell arrangement structure within the module is studied by the computer-aided simulation, and the tests for confirming thermal cycle durability of the modified bundle are conducted using the module power generation unit and the several kW-class module is tested, and (3) development of the technology for designing a thermally supported module: the effects of, e.g., air and fuel supply conditions on the module performance are analyzed using the analytical model as the base. Expansion of the module level to the process simulation model has been completed, based on these results. (NEDO)

  11. International research cooperation project. Assessment report on the R and D of the comprehensive development/utilization technology of energy of gas hydrate resource; Gas hydrate shigen no energy sogo kaihatsu riyo gijutsu no kenkyu kaihatsu hyoka hokokusho

    NONE

    2000-03-01

    As to 'the R and D of the comprehensive development/utilization technology of gas hydrate resource,' assessment was conducted and reported from an aspect of the third party. This R and D is a timely project being aimed at establishing the basic technology on gas hydrate from both aspects of fundamental research and practical research. In the development of gas hydrate resource in the tundra zone, the development of measuring methods for thermal conductivity and dielectric constants advanced the establishment of a guide for exploration and possibilities of assessment of the resource amount. In the development/production, it can be said that the knowledge/information collected by exchanging methane in gas hydrate with CO2 means no needs for new supply of heat and also contributes to the isolation of CO2. As to the utilization technology, the results were rated very high also internationally of tackling the quantitative evaluation method at molecular levels of the gas included in hydrate using Raman spectroscopy to establish the industrial gas separation method using the low-temperature environment in the tundra zone. (NEDO)

  12. Report on achievements in fiscal 1999. Development of technology to put photovoltaic power generation system for industrial use into practical use (Summary of comprehensive achievement); 1999 nendo sangyoyonado solar system jitsuyoka gijutsu kaihatsu seika hokokusho. Kenkyu kaihatsu kanri

    NONE

    2000-09-01

    NEDO is proceeding with the development of a technology to put photovoltaic power generation system for industrial use into practical use, with an aim of simultaneous solution of sustainable growth and environmental problems. In developing an advanced heat process type system, selection was made on high-performance refrigeration materials for a stand-alone type refrigeration system capable of dealing with levels of minus 20 degrees C or lower (Ti-Ni-Zr-Mn-V based hydrogen absorbing alloys for use at low temperatures, and La-Ni-Sn-Al based hydrogen absorbing alloys for regeneration use). Evaluations were given on the developed refrigeration system by using the dynamic property simulation technology. The developed system achieved a cold heat acquiring temperature of minus 20 degrees or lower, and a heat output of 1,500 kcal/hr or more under the conditions of outside air temperature of 28 degrees C, and collected solar heat temperature of 140 degrees C. CO2 reduction unit requirement was calculated from LCA on a solar heat utilization system with which the future technological development is expected to aim at. Themes proposed to be promoted in the future would include a direct heat utilization system such as the building material integrated system, a freezing and refrigeration system, a high-temperature light and heat collecting system, a harmful substance analyzing system, a high temperature utilizing fuel synthesizing system, a high-efficiency heat storing system, and a snowy cold region system. (NEDO)

  13. FY 1998 result report. Research/development on the energy overall development/utilization technology of gas hydrate resource; 1998 nendo seika hokokusho. Gas haidoreto shigen no energy sogo kaihatsu riyo gijutsu no kenkyu kaihatsu

    NONE

    1999-03-01

    This study is aimed at studying for survey of gas hydrate (GH) deposit required for GH resource development and gathering of it, and further at studying for industrial utilization technology development of GH which is different in formation condition depending on kind of gas with which it reacts. The results of FY 1998 are as follows. In the study of the situation of existence of gas hydrate in the tundra, the sedimentary environment of the tundra where natural gas hydrate exists was simulated in laboratory to measure thermal conductivity of the sediments including GH. In this fiscal year, design/fabrication/calibration were conducted of the GH synthesizer and thermal analyzer. In the study of GH gathering technology in the tundra, a technology is discussed for recovering gas from GH layer and at the same time substituting CO2 hydrate for GH by blowing CO2 into the geologic layer. In FY 1998, formation/dissociation behaviors were first studied of methane/CO2 mixture hydrate. For the overall energy development of GH resource and promotion of R and D of the utilization technology, studies were made on physical properties of GH and development of the usage. (NEDO)

  14. FY 1999 Report on research and development of power storage by high-temperature superconducting flywheel. Research and development of permanent magnet; 1999 nendo koon chodendo flywheel denryoku chozo kenkyu kaihatsu eikyu jishaku no kenkyu kaihatsu seika hokokusho

    NONE

    2000-05-01

    The R and D program is implemented for permanent magnet, as part of the project aimed at commercialization of a 10 MWh-class high-temperature superconducting magnetic bearing type power storage system. A speed of rotation of 28,570 rpm is attained by using an iron intermediate ring for a Pr permanent magnet rotator and reinforcing the rotator with a plastic hoop reinforced with carbon fibers three-fold (CFPR hoop). The speed is increased to 31,300 rpm by interlacing carbon fibers also in the radial direction and replacing iron for the intermediate ring by titanium. The highest speed of rotation of 33,506 rpm is realized by the rotator of permanent magnet of sintered Nd. The magnetic circuit of stronger, more smooth magnetic field needs the permanent magnet of less uneven magnetic flux. The magnet is of a monoaxially anisotropic rare-earth metal, with four-fold magnetic ring bodies having fan-shaped small pieces arranged on each ring. Uneven magnetic flux occurs at the joint between these small pieces. The one-body-ring magnet of radially anisotropic, sintered Nd is developed, and incorporated in the repulsion type magnetic circuit, to reduce unevenness of the magnetic flux. (NEDO)

  15. Achievement report for fiscal 1998. Research and development of synergy ceramics (Development of technology for energy use rationalization); 1998 nendo seika hokokusho. Shinaji ceramics no kenkyu kaihatsu (energy shiyo gorika gijutsu kaihatsu)

    NONE

    1999-03-01

    The aim is to create inorganic materials with their functions well harmonized and with their reliability remarkably improved, and efforts are made to establish basic technologies with which structural control may be carried out simultaneously for multiple layers in in-process products through positive utilization of various chemical reactions in the materials synthesizing process. This fiscal year's achievements are stated below. A low-temperature pressure nitriding method is developed in which nitriding reaction directly involves the metal aluminum compact for conversion into ceramics, and an aluminum sintered body is produced capable of high thermal conduction of not less than 170w/mk with the original compact shape retained. By a heat treatment in a high-temperature pressure nitriding atmosphere, a success is attained in producing a silicon nitride ceramic body enhanced (150w/mk) in thermal conduction. It is clarified that the microwave-aided selective heating technology works effectively in enhancing the particle growth rate in a liquid-phase sinter system, and a success is won in increasing strength by virtue of the formation of particle-growing particles. (NEDO)

  16. Sunshine Program for fiscal 1981. Development of practical application technologies for photovoltaic power systems (Management of research and development); 1981 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu. Kenkyu kaihatsu kanri

    NONE

    1982-03-01

    To gain a helpful guide toward the next process by properly evaluating the current project, evaluation of cost and inputted energy is indispensable. In fiscal 1981, as the first step of such evaluation effort, a manufacturing process model is built based on data about designing and manufacturing, and is subjected to analysis. Cost forming factors are extracted from the respective processes, and their relations are analyzed. Parameters are analyzed for the survey of energy that a system demands for operation. Test facilities now under construction are also subjected to a cost analysis. A system design document is prepared for cost analysis and for assisting the process improvement and evaluation work. For the establishment of low-cost mass-production technologies, it is necessary to reappraise the currently-employed technologies for all the processes. It is necessary to coordinate the basic processes in terms of dimension and efficiency to enable them to function as a continuous, consistent production process. Target values are set for the respective processes for an output of 500kW/year at a cell conversion efficiency of 9%. In selecting items to be specified and values to be attained, users' requests are fully considered. Details are prudently coordinated of conditions for delivery from a process to another. (NEDO)

  17. Fiscal 2000 report on result of R and D on robot system cooperating and coexisting with human beings. Development of energy conservation technology; 2000 nendo ningen kyocho kyozongata robot system kenkyu kaihatsu seika hokokusho. Energy shiyo gorika gijutsu kaihatsu

    NONE

    2001-06-01

    Introduction of a number of robots and consumption of a large amount of energy are unavoidable if a complicated process operation is to be carried out by robots in an extensive work site. Great energy conservation is contrived by developing robots applicable to manufacturing in performing a variety of operations in place of human beings and thereby reducing the number of robots to work. This paper explains the fiscal 2000 results. For dual-handed cooperative tasks, a function was examined capable of gripping an object without giving a humanoid robot an instruction of an exact gripping position. A method was designed to prepare a command for the other arm through a command for one arm, with torque impedance control employed for the purpose of avoiding damage due to collision. A study was conducted on a three-dimensional shape detecting model using a visual device of a robot. In grasping problems of balance control of a humanoid robot, the behavior of a robot consisting of multi-links was considered as behavior of inverted pendulum, with possibility checked for the stabilization of the balance. For the purpose of putting the virtual robot platform previously developed to practical use, a three-dimensional operation tool of run-time user interface was developed, with research conducted on the sophistication of robot application. (NEDO)

  18. Fiscal 1998 R and D report on femtosecond technology (ultra-short pulse optoelectronics technology); 1998 nendo femuto byo technology no kenkyu kaihatsu (chotan pulse hikari electronics gijutsu kaihatsu) seika hokokusho

    NONE

    1999-03-01

    This report reports the result of the fiscal 1998 R and D on femtosecond technology supported by NEDO. For creation of industrial basic technologies supporting the advanced information society in the 21st century, ultra-high speed electronics technology including new functions beyond the speed limit of conventional electronics technologies is indispensable. From such viewpoint, this R and D aims at establishment of the basic technology necessary for ultra- high speed electronics technology through R and D of technology controlling conditions of beams and electrons in a femtosecond (10{sup -15}-10{sup -12} seconds) region. In fiscal 1998, this project first succeeded in fabrication of a prototype pulse compressor by using semiconductors, and developed a new pulse compressing method by using fibers to generate ultra-short pulse of 38fs. By developing new materials for intersubband transition where ultra-high speed responses can be expected, optical absorption by intersubband transition was first confirmed at optical communication wavelength. The main result for every theme is reported and explained. (NEDO)

  19. FY 1993 report on the results of the commissioned research and development project. R and D of SOFC (solid oxide fuel cells); 1983 nendo nenryo denchi hatsuden gijutsu kaihatsu seika hokokusho. SOFC kotai denkaishitsugata nenryo denchi no kenkyu kaihatsu

    NONE

    1994-05-01

    The research and development project is carried out for fuel cell power generation technologies and solid electrolyte type fuel cells, and the reports on the FY 1993 results issued by the participant organizations are summarized. For R and D of the modules, Fuji Electric conducted the R and D for the large-area, cell-stacked type, and Sanyo Electric for the composite cell-stacked type. For R and D of the materials and fundamental technologies, Fine Ceramics Center conducted the R and D for microscopic structures of the electrode, Fujikura for electrode structures produced by spraying or the like, Mitsubishi Heavy Industries for multi-functional fuel electrodes, Murata Seisakusho for co-sintering technologies, and Mitsui Shipbuilding for current collecting technologies. For R and D of the systems, Central Research Institute of Electric Power Industry conducted the R and D for the systems, Electric Power Development and Mitsubishi Heavy Industries jointly for designs of the cell peripheries, and the Japan Research and Development Center for Metals for elementary technologies for the peripheral devices. (NEDO)

  20. FY 2000 report on the results of the R and D of femtosecond technology. Development of the ultra-short pulse optoelectronic technology; 2000 nendo femto byo technology no kenkyu kaihatsu seika hokokusho. Chotan pulse hikari electronics gijutsu kaihatsu

    NONE

    2001-03-01

    This project aims at creating new industrial basement technology which supports the highly information-oriented society in the 21st century, conducts the R and D of technology to control the state of light and electron in the femtosecond time domain (10{sup -15} - 10{sup -12} sec), and establishes the basement technology which exceeds the speed limit of the conventional electronics technology and also includes new functionality. Especially, it aims at establishing the basement technology of the ultra-high speed optoelectronics which are absolutely necessary for construction of the Tb/s class ultra-high speed/large capacity information communication infrastructure. The results obtained in this fiscal year were as follows: successful transmission of 144km of 600fs optical pulse, successful experiment of 4-chain pulse DEMUX equivalent to 1Tb/s by ultra-high speed intersubband transition optical switch of Sb-base material combination quantum well, realization of 2-bit coding/decoding in the spectral region, realization of serial-parallel conversion motion of optical pulse equivalent to 1Tb/s using squarylium J aggregate thin films, realization of subpico second optical pulse 20nm wavelength conversion by DFB laser structure, etc. (NEDO)

  1. 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

    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)

  2. Research and development of basic technologies for next generation industries, 'composite materials'. Evaluation on final research and development (interim report); Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Fukugo zairyo (saishu kenkyu kaihatsu hyoka 2)

    NONE

    1989-05-01

    Development was made on a technology to evaluate quality of composite materials. Few data are available for environmental resistance of composite materials, whereas identification of environmental deterioration behavior and establishment of a environmental resistance evaluating technology are a significant issue in utilizing these materials as new materials for space, aeronautics, and marine applications in the future. The present research was taken up with objectives to elucidate deterioration behavior of composite materials exposed to special environment in the atmosphere and space and to establish methods for acceleration tests and environmental performance evaluation by using simulated environments equivalent to the natural environment exposure. The former period (fiscal 1982 through 1984) has investigated environmental conditions in the atmosphere and space, prepared standard test specimens, performed design on environmental devices simulating the environmental elements, as well as tests on deterioration due to environmental elements, and systematized the deterioration characteristics to establish composite test conditions. The latter period (fiscal 1985 through 1988) has developed the composite environment testing device based on the result achieved in the former period, elucidated the deterioration behavior under the composite environmental conditions, and performed evaluation tests on the developed composite materials (FRP). (NEDO)

  3. 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

    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)

  4. Achievement report for fiscal 1998. Research and development of synergy ceramics (Research and development of anti-corrosion technologies for oil production system); 1998 nendo seika hokokusho. Shinaji ceramics no kenkyu kaihatsu (sekiyu seisan system fushoku boshi gijutsu kenkyu kaihatsu)

    NONE

    1999-03-01

    A computer simulation-aided designing technology is completed to help develop synergy ceramics which are complicated in phase constitution and material structure. A program, which simulates sintering and particle growth for multiple solid-state and solid-state/liquid-phase systems, has been built assuming the form of an integrated micro/nano level simulation technology based on the Monte Carlo method. The new program applies to systems consisting of more than three different phases, and deals in a uniform way with the designing of various textures formable by transfer of matters in solid-state particle growth, Ostwalt ripening, solid-state sintering, liquid-phase sintering, and additive reaction. The Monte Carlo method-assisted program is applied to systems based on AlN, Si{sub 3}N{sub 4}, and Al{sub 2}O{sub 3}, and a good result is achieved in each case. The molecular dynamic method is mainly used in atom level simulation for application to ZrO{sub 2}-Y{sub 2}O{sub 3} and Si-C-N, and a good result is achieved in each case. (NEDO)

  5. Achievement report for fiscal 1998. Research and development of synergy ceramics (Development of technology for energy use rationalization); 1998 nendo seika hokokusho. Shinaji ceramics no kenkyu kaihatsu (energy shiyo gorika gijutsu kaihatsu)

    NONE

    1999-03-01

    The aim is to create inorganic materials with their functions well harmonized and with their reliability remarkably improved, and efforts are made to establish basic technologies with which structural control may be carried out simultaneously for multiple layers in in-process products through positive utilization of various chemical reactions in the materials synthesizing process. This fiscal year's achievements are stated below. A low-temperature pressure nitriding method is developed in which nitriding reaction directly involves the metal aluminum compact for conversion into ceramics, and an aluminum sintered body is produced capable of high thermal conduction of not less than 170w/mk with the original compact shape retained. By a heat treatment in a high-temperature pressure nitriding atmosphere, a success is attained in producing a silicon nitride ceramic body enhanced (150w/mk) in thermal conduction. It is clarified that the microwave-aided selective heating technology works effectively in enhancing the particle growth rate in a liquid-phase sinter system, and a success is won in increasing strength by virtue of the formation of particle-growing particles. (NEDO)

  6. Research on natural gas fuel injection system. Development of high-performance pressure regulator; Tennen gas yo nenryo funsha system no kenkyu kaihatsu. 1. Tennen gas nenryo funshayo no koseino regulator kaihatsu

    Kato, S; Ishii, M; Takigawa, B; Makabe, K; Harada, S; Ono, H [Nippon Carburetor Co. Ltd., Tokyo (Japan)

    1997-10-01

    With the aim of further reducing the exhaust emissions of natural-gas vehicles, vigorous research and development work is under way today on multi point gas injection (MPGI) system. In this studies, a high-performance pressure regulator, which is one of the main components of this MPGI system, has been newly developed. The results showed that a significantly better accuracy of the regulated pressure level using this regulator was obtained under the wide range of operating conditions, including instantaneously greater changes of fuel flow rate. In addition, the advanced studies of gaseous fuel injectors (GFIs) would be also conducted. 4 refs., 8 figs.

  7. Development of active rear steer actuator. Development of four wheel steer actuator for active safety; Active rear steer actuator no kaihatsu. Yobo anzen ni muketa 4WS actuator no kaihatsu

    Yamanaka, T [Aisin Seiki Co. Ltd., Aichi (Japan)

    1997-10-01

    Recently, ecology, energy saving and safety have become important issues. And Active Safety is spotlighted in vehicle control area. Many researches and developments on four wheel steer system have been done to improve vehicle stability. We have developed the Active Rear Steer system with electromechanical Actuator, which is mass-productive, compact, and high response and durable. 10 figs., 5 tabs.

  8. Fiscal 1996 achievement report. Development of liquid fuel conversion technology (Development for practical application of a new production process); 1996 nendo ekitai nenryo tenkan gijutsu kaihatsu seika hokokusho. Shinseizo process jitsuyoka kaihatsu

    NONE

    1997-03-01

    The research and development aims to establish, through verification tests, practical application technologies for two methods, namely, a 'low-temperature liquid phase method' by which cost will be reduced thanks to simplified plant facilities and a 'vapor phase fluidized bed method' in which a composite reforming process may be combined for better economics of scale with a vapor phase fluidized methanol synthesizing method whose facilities may be built to be very large. For the former method, development efforts are made to enable catalyst performance characterization and low-temperature liquid phase methanol production using a small pyrolysis reactor. In the research on pyrolysis reaction, a Raney copper/KOMe/MeOH-based catalyst is used, and this attains a raw material gas conversion efficiency of 92.7%. In the construction of a low temperature liquid phase process, it is found that a single spun conversion efficiency of not less than 90% may be achieved using a heterogeneous catalyst. For the latter method, studies are conducted for the development of, and for the establishment of technologies for designing, synthetic gas production technologies in the development of a heat exchanger type composite reforming furnace and a fluidized bed methanol production process, the development of a catalyst manufacturing technology for fluidized bed practical application, the development of a fluidized bed methanol production technology, and the optimization of the process and its economic efficiency. (NEDO)

  9. FY 1999 report on the results of the R and D on high performance industrial furnace, etc.; 1999 nendo koseino kogyoro no kaihatsu ni kansuru kenkyu seika hokokusho. Koseino kogyoro nado ni kansuru kenkyu kaihatsu

    NONE

    2000-03-01

    In the development of high performance industrial furnace, initial targets were achieved such as energy saving of 30%, downsizing of 20%, and a remarkable NOx reduction. To verify the achievement, the test field project is being worked on by NEDO. In FY 1998, 23 heating furnaces, 29 heat treat furnaces and 6 melting furnaces were under the project at energy saving effect of 52,000 kl converted to crude oil. In FY 1999, 18 heating furnaces, 26 heat treat furnaces and 7 melting furnaces are now under the project at energy saving effect of 57,000 kl. The project was awarded 'The 9th Nikkei Global Environmental Technology Prize.' The themes for the R and D are as follows: high efficiency exhaust heat utilization system, self-completion type high temperature/high radiation heating technology, technology to make heat transfer in steel heating suitable under non-stationary state, high efficiency heat transfer technology, technology to optimize the shape of heating furnace, high performance atmosphere heat treat furnace, high efficiency heat transfer technology by high temperature jet flame heating, technology of high efficiency aluminum melting furnace, technology to improve soaking degree in steel heating, high performance tubular heating furnace in oil refining, optimum combustion control technology of regenerative burner furnace, and laser measuring method inside industrial furnace. (NEDO)

  10. Fiscal 1996 verification survey of geothermal exploration technology. Development of the fracture type reservoir exploration method (development of the elastic wave use exploration method); 1996 nendo chinetsu tansa gijutsu nado kensho chosa. Danretsugata choryuso tansaho kaihatsu (danseiha riyo tansaho kaihatsu)

    NONE

    1997-03-01

    For the purpose of exploring accurately fracture groups greatly restricting the fluid flow of geothermal reservoirs, technical development was made for applying the elastic wave exploration technology such as the high precision reflection method, VSP, elastic wave tomography to the geothermal exploration. The Okiri area, Kagoshima prefecture was selected as a demonstrative field of a typical type where the steep and predominant fracture rules the geothermal reservoir, and experiments were conducted using the high precision reflection method and VSP. Fracture models were made, and the analysis results were studied by a survey using the array CSMT/MT method and by a comparison with existing data. Reformation of the underground receiving system used for VSP and elastic tomography is made for improvement of its viability, and was applied to the VSP experiment. The treatment/analysis system of the core analyzer was improved, and cores of the demonstrative field were analyzed/measured. Further, the exploration results, core analysis results and existing data were synthetically analyzed, and fracture models of the demonstrative field were constructed. Also, effectiveness and viability of the elastic wave use exploration method were studied. 90 refs., 418 figs., 24 tabs.

  11. Research and development of basic technologies for next generation industries, 'high-efficiency polymeric separation membrane material'. Evaluation on first term final research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Kokoritsu kobunshi bunrimaku zairyo (daiikki kenkyu kaihatsu hyoka)

    NONE

    1985-03-30

    The first term has performed research and development placing emphasis on that 'the basic study on membrane separation is to be performed systematically to elucidate governing factors in membrane separation'. With respect to water/ethanol separation by using the penetration gasifying method, it was indicated that excellent separation performance can be exhibited by using natural polymers having sugar chain skeleton as a raw material, and by controlling the membrane structure by means of membrane manufacturing methods. For enhancement of performance in water selective permeation type separation membrane, it was shown experimentally that it is important to select a membrane suitable for the object of separation and a separation method that uses the selected membrane. Regarding the water/ethanol separation, it was shown theoretically that the penetration gasifying method can save more energy than the conventional distillation method, where the development target was presented. It was recognized that impregnation type liquid membrane using crown ether can separate amino acid optical isomers. High separation performance was obtained in carbon monoxide/nitrogen separation by using fluid carrier that uses cuprous iodine/1-methyl imidazole. (NEDO)

  12. Fiscal 1974 Sunshine Project result report. R and D on solar heat power generation system (R and D on tower solar collection system); 1974 nendo taiyonetsu hatsuden system no kenkyu kaihatsu seika hokokusho. Tower shuko hoshiki system no kenkyu kaihatsu

    NONE

    1975-05-29

    This report summarizes the fiscal 1974 research result on the solar heat power generation system with a tower light collection system. This system receives solar radiation energy by reflector group, and concentrates solar energy reflected by each reflector on the heat absorber mounted on the top of the tower. A ratio of the whole reflector group area to the receiving area of the heat absorber is called a concentration factor. The heat absorber converts concentrated dense radiation energy to thermal energy, and transfers heated thermal medium to the bottom of the tower to supply solar heat to a thermal plant after appropriate treatment. Based on the above basic idea, study was made on the total system and each subsystem, and some problems on component equipment and materials were extracted. After solving these problems and improving the whole system accuracy, these results are put to practical use for design and operation of an actual pilot plant. The main research items are as follows: feasibility study, simulation, element study, preparation of a 10kWT test equipment, and planning of a 1,000kW class pilot plant. (NEDO)

  13. Research and development of the industrial basic techniques of the next generation. Composite materials (Final research and development evaluation / Part 1); Jisedai dangyo kiban gijutsu kenkyu kaihatsu. Fukugo zairyo (Saishu kenkyu kaihatsu hyoka 1)

    NONE

    1989-05-01

    This R and D project is aimed at development of highly functional materials for aerospace devices, bringing into focus research and development of resin-based composite materials (FRPs), metal-based composite materials (FRMs), and evaluation of their properties and their design techniques. The basic target properties are heat resistance temperature of 250 degrees C or higher and tensile strength of 240 kg/mm{sup 2} or more for the FRPs, and heat resistance temperature of 450 degrees C or higher and tensile strength of 150 kgf/mm{sup 2} or more for the FRMs. This R and D program has been implemented for 8 years for development of raw materials, molding/processing techniques, quality evaluation and designs through information exchange and discussions of the experts in each area under integrated, close cooperation from raw materials to molding/processing. Most of the data indicate that the target properties and objects are satisfied or exceeded. It is therefore concluded that this project for the composite materials, extending for 8 years in 3 phases, has sufficiently achieved the initial objects. The unique techniques are incorporated in the raw materials, molding/processing processes, quality evaluation and designs. These efforts have produced the FRPs and FRMs of the world highest qualities. (NEDO)

  14. Research and development of basic technologies for next generation industries, 'composite materials'. Evaluation on final research and development (final report); Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Fukugo zairyo (saishu kenkyu kaihatsu hyoka 3)

    NONE

    1989-05-01

    This paper carries the specifications for advanced composites in the investigation (SACOI), and lists the titles and organizations and persons in charge. The paper describes the specifications for test and measurement methods for each title. The titles are: testing methods of matrix resins for carbon fiber reinforced plastics, measurement method for thermogravimetry and glass transition temperature for the same plastics, measuring methods for specific gravity, fiber and void contents of carbon fiber reinforced plastics, testing methods for tensile properties, compression properties, apparent interlaminar shear strength, tension fatigue, interlaminar fracture toughness, crack propagation, high velocity impact, izod impact, and environmental resistance for the same plastics, evaluation methods for hot-press formability of prepreg, autoclave formability of prepreg for the same plastics, measuring methods for tex count, density, and fiber volume fraction of wire preform, testing methods for tensile strength at room temperature, tensile strength at elevated temperature of wire preform, measuring methods for thermal expansion coefficient, tension properties, compression properties, tensile shear strength, interlaminar shear strength, in-plane shear strength, tensile fatigue, high velocity impact and regular impact of wire preform. (NEDO)

  15. 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

    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)

  16. 1998 Annual Study Report. Research and development of power storage by high-temperature superconducting flywheels (research and development of permanent magnet); 1998 nendo seika hokokusho. Koon chodendo flywheel denryoku chozo kenkyu kaihatsu (eikyu jishaku no kenkyu kaihatsu)

    NONE

    1999-05-01

    The permanent magnets have been investigated and developed, for eventual commercialization of a 10 MWh power storage system by high-temperature superconducting flywheel. The permanent magnet rotors have been already developed in the previous years using a praseodymium-based magnet (Pr magnet) and neodymium-based sintered magnet (Nd sintered magnet), and the target rotational speed of 30,000 rpm has been attained. For development of the magnetic circuit to produce a stronger and smoother magnetic field, magnetic flux density of the Nd sintered magnet is measured. It shows a lower magnetic flux irregularity than the Pd magnet, but there is still room for further improvement. For development of large-size permanent magnet fabrication techniques, it is confirmed that the large-size Nd sintered magnet can be easily magnetized by partial magnetizing, as is the case with the Pr magnet. In this year, the irregular magnetic flux is three-dimensionally simulated, based on the results obtained in the previous years, to find that the simulated results are in good agreement with the observed ones. The measures to solve the problems are also investigated. It is also confirmed that the large-size ring magnet can be easily magnetized by partial magnetization. (NEDO)

  17. Achievement report on research and development of the industrial basic technologies of the next generation in fiscal 1981. Research and development of composite materials; 1981 nendo jisedai sangyo kiban gijutsu itaku kenkyu kaihatsu seika hokokusho. Fukugo zairyo no kenkyu kaihatsu

    NONE

    1982-03-01

    Described herein are the results of the FY 1981 research and development for composite materials, established by the R and D system for the basic technologies of the next generation. The R and D project for resin-based composite materials involves basic researches on the matrix resins, and surface modification of the reinforcing fibers. The investigations and basic tests are conducted for monolithic molding, other types of molding, and cutting and boring by, e.g., laser beams and water jet. The other related efforts include researches on analysis theories for optimization of strength and rigidity of the composite structures, and development of the optimization programs. For the R and D project for the metal-based composite materials, the efforts are directed to understanding wettability and reactivity of the reinforcing fibers with metals, and development of the techniques for producing various types of preforms and compositing methods. The basic researches are conducted for hot pressing/rolling molding, extrusion/withdrawal, powder molding and melt molding of the composite materials with aluminum alloys as the matrices. The other R and D items include investigations on methods for evaluating qualities for the steps form the stock preparation to production of the final products. (NEDO)

  18. Report on 1979 result of R and D under Sunshine Project. Development of coal liquefaction technology (development of solvent treatment and liquefaction plant); 1979 nendo sekitan ekika gijutsu no kaihatsu seika hokokusho. Yozai shori ekika plant no kaihatsu

    NONE

    1980-03-01

    A report was made on the result for fiscal 1979 of the development of a coal solvent treatment and liquefaction plant. With the purpose of establishing a technology of making equipment for a coal liquefaction plant by a solvent treatment method, R and D were conducted on a solid liquid separation method and on the construction and operation of an experimental equipment having a scale of the maximum 1 t/day coal processing, providing technical data for the construction of an efficient coal liquefaction equipment. In studying the operation of a centrifugal separator, it was run using heating solvent, dummy slurry and coal extraction slurry, with no abnormality found in each equipment and with knowledge obtained of the separation state of the solid. The machine is capable of obtaining SRC of 0.2-0.3% low ash contents. Water operation was performed for the extraction processing device (agitation tank, heating furnace, compression pump, circulation pump, etc.) of the 1 t/day experimental plant and, as a result, a relation was confirmed between a water flow rate and pressure loss of the piping part. The detailed design, manufacture and installation were completed for a part (pulverizer, solvent tank, feeding pump, etc.) of the equipment for the coal pre-processing slurry making process and the extraction process, with a trial run implemented for adjustment and confirmation of the operation. The cold/hot continuous trial run by a solvent smoothly proceeded, proving the performance to be the same as the specifications. (NEDO)

  19. 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

    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.

  20. Report for fiscal 1998 on results of research and development of silicon-based polymeric material. Material research for the liquid methane fueled aircraft engine; 1998 nendo keisokei kobunshi zairyo no kenkyu kaihatsu seika hokokusho. Methane nenryo kokukiyo engine kaihatsu

    NONE

    1999-03-01

    Research was conducted for the purpose of establishing basic technology concerning molecular design, synthesis, material formation, and evaluation of silicon-based polymers which are expected to provide superior electronic/optical functions, high heat/combustion resistance and dynamic properties. The research subjects were such as following: research and development of silicon-based polymeric materials with sea-island microstructures; research and development of silicon-based polymeric materials with sea-island microstructures; research and development on IPN formation with silicon-based polymers; research and development of hybrid silicon polymers with organometallic compounds; research and development of silicon containing polymer materials with ring structures; general committee for investigation and research; the optimized low-temperature Wurtz synthesis and modification of polysilanes; study of unsaturated and hypercoordinate organosilicon compounds; basic studies on the synthesis and properties of silicon-based high polymers; studies of new monomer-synthesis and their polymerization reaction; studies on new method of preparation and functionalization of polysilanes; novel applications of silicon-based polymers in imaging devices for information display, memory, and recordings; and molecular design of silicon-containing {pi}-conjugated and {sigma}-conjugated compounds. (NEDO)