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Sample records for atarashii doshigen shori

  1. Development of novel processes for Cu concentrates without producing sulfuric acid; Hiryusan hasseigata no atarashii doshigen shori gijutsu no kaihatsu

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    Nakamura, T.; Noguchi, F.; Takasu, T.; Ito, H. [Kyushu Inst. of Technology, Kitakyushu (Japan). Faculty of Engineering

    1997-02-01

    In the refining process for the production of copper from pyrites, heat treatment is carried out in a neutral atmosphere so that part of the sulphur will be collected in the form of simple sulfur and that pyrites naturally low in reactivity will be made active. A basic study is also conducted of a very high speed electrolytic method. The chemical aspects of pyrites which are various in composition (mainly CuFeS2) are clarified by X-ray diffraction, and then is subjected to heat-treatment in a 773K-1073K argon atmosphere. There is a decrease in the amount of sulfur at a temperatures not lower than 973K. The X-ray main diffraction line splits for the emergence of some lower angle diffraction lines. The specimen is then subjected to a leach test in a copper chloride base liquor, to disclose that leachability grows remarkably higher in the presence of a great change in the X-ray diffraction lattice constant. An experiment follows in which an electrolyte is allowed to flow at a high speed for accelerating the rate of electrolytic refining in an effort to prevent the passivation of anode and deposition of dendrite on the cathode that is apt to occur when the current density is high. Passivation is prevented when the flow rate is 10m/min or higher in the vicinity of the anode surface for the formation of a smooth electrodeposited surface. 2 refs., 2 figs., 2 tabs.

  2. Development of novel processes for Cu concentrates without producing sulfuric acid; Hiryusan hasseigata no atarashii doshigen shori gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Awakura, Y.; Hirato, T. [Kyoto University, Kyoto (Japan)

    1997-02-01

    Studies are conducted to develop a new wet method for copper concentrates to replace the conventional dry smelting method for the settlement of problems involving the processing of impurities for environmental protection. A specimen of pyrites polycrystals is subjected to leaching at 80 {degree}C in a strongly acidic cupric solution. Findings are that the element sulfur generated in this process does not impede leaching and only approximately 4% of the sulfur is oxidized into sulfur ions; that the presence of more than 2g/liter of bromide ions produced during bromine-aid leaching of gold changes the structure of sulfur for the inhibition of leaching; that circulation of a bromine-containing leaching liquid is not desired since even a small amount of approximately 0.02mol/liter inhibits the leaching rate. Controlled potential electrolysis is performed for the anode in an acid solution containing CuCl, NaCl, and NaBr, for the observation of oxidation/reduction potentials predicted by Nernst`s equation. It is then disclosed that bromine is more effective than chlorine in gold leaching and that the solution potential during leaching agent regeneration enables the monitoring of solution constitution. 2 refs.

  3. Technical development of a new advanced COD treating system. ; Realization of chemical oxidation process. Atarashii COD kodo shori system no gijutsu kaihatsu. ; Kagaku sankaho no jitsuyoka

    Energy Technology Data Exchange (ETDEWEB)

    Yokomaku, T.; Aizawa, M.; Kanke, Y.; Komiya, N.; Sodeyama, S. (Kankyo Engineering Co. Ltd., Tokyo (Japan))

    1991-10-11

    An advanced treating technique of drainage containing organic compounds, that is, A-Hipo Process(acid aggregation and chemical oxidation process) which uses hydrogen peroxide as the oxidizing agent was explained. The system has the following features: The first is that this system can decompose and remove simply and cheaply organic compounds which is difficult to treat by the biological process such as the activated sludge process. The second is that the applicable kinds and concentration range of drainage are very wide compared with the existing tertiary treating technique and other advanced treating techniques. This treating system removes BOD in sample drainage by the biological process, and then executes the aggregation and preciptaion at an acid range of pH 4-5 by adding a ferric salt in the acid aggregation treating process. In the following process using hydrogen peroxide and iron catalyst, the oxidizing decomposition is proceeded by adding hydrogen peroxide in the drainage and by using ferric sulfate as the catalyst. The iron catalyst is settled and separated after the neutralization and deposition to get the final treated water. The application to a supernatant after sewage sludge digestion, photoresist waste water and drainage from a food factory was explained as the examples of this system. 7 figs., 5 tabs.

  4. Advanced water purification technology. Kodo josui shori gijutsu

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    Sato, S.; Koseki, M.; Sekizawa, K. (Sumitomo Heavy Industries, Ltd., Tokyo (Japan))

    1993-12-10

    This paper describes the result of a pilot experiment on biological treatment, ozonization, and activated carbon treatment as high-level water supply treating technologies. In biological treatment using a biological contact filtration method, the nitration rate of NH4-N was maintained at 90% or higher even during the low water temperature period, the chlorine demand in the treated water remained at near 2 mg/l or less, and the average removal rate reached 87%. In preozonization, general bacteria were removed at a rate of 99.5% at an ozone injection rate of 2.0 mg/l. Attaining a removal rate of 80% in Geosmin and 2-methyl isoborneol (2MIB), the musty odor substances, required the ozone injection rate of 1.6 mg/l and 1.8 mg/l, respectively. The activated carbon treatment used the coal-based activated carbon (AC-1) and the charcoal-based activated carbon (AC-2). Both activated carbons removed Geosmin at more than 98% and 2MIB at more than 94%. The removal rate for trihalomethane formation potential was 62% in the AC-1, and 46% in the AC-2. The AC-1 was superior to the AC-2 also in removing organic matters and totally organic chlorine compounds. 8 refs., 7 figs., 1 tab.

  5. Leading research on brainware; Nokino joho shori no sendo kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Leading research on brainware is conducted to realize the engineering information processing based on the learning, memorization, association, intuition, value judgment, and motivation which are activities of human brains. For the highly integrated information society at the 21st century, it will be essential to establish human-like information processing technology which is considered to be difficult with the conventional computers. The R and D theme for this technology will focus on the development of novel devices and systems by eliciting the principles and key roles of information processing functions of the brain and in living organisms from both viewpoints of the science and engineering and the brain information science. It is considered that important research targets are in elucidating brain functions and the modeling and developing novel devices and systems, such as brain information architecture, neural devices, neural networks, and man-machine interface. Technical trend surveys in the USA, the UK, and Germany were also conducted. 347 refs., 58 figs., 7 tabs.

  6. Waste management in the world; Sekai no haikibutsu shori

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    Tanaka, M. [The Institute of Public Health, Tokyo (Japan)

    1998-05-15

    This paper describes waste management in the world. Richer countries produce more wastes with their contents diversified. Poorer countries produce less wastes, which will not present problems in terms of quantity and quality if individuals will dispose of them properly. Household and kitchen refuses in developing countries are organic in nature, and contain more water. Refuse collectors using such animals as donkeys and horses are still seen. Cases of performing intermediate treatment such as incineration are few, and land reclamation is the main treatment. Neither soil covering nor mud water prevention measures are taken. Smoke stays in air throughout year due to open dumping and open burning, and foul water seeps out. Scavengers (people who collects valuables from dumps) exist, who recover such resources as metals and plastics to make their living. Some of the countries make kitchen refuses into compost. In industrialized countries, ratio of containers and wrappings is high in refuses, which are collected by mechanical recovery vehicles, and carried to incineration facilities and reclamation areas. Securing reclamation areas is difficult. Resource recovery is in a trend of mechanization. Pollution preventive measures are also taken at high levels by means of waste processing. 2 refs., 2 figs., 2 tabs.

  7. Coin sorting unit; Koka ikkatsu tonyu shori unit

    Energy Technology Data Exchange (ETDEWEB)

    Oyabu, H.; Nishiyama, T.; Iijima, S. [Fuji Electric Co. Ltd., Tokyo (Japan)

    1999-08-10

    There are promising demands for barrier-free vending machines which can easily be used by the aged and the handicapped as well as ordinary people. Fuji Electric had developed an advanced unit for throwing in coins for the new hearty series that can smoothly be used by the aged and the handicapped. Its main advantages are (1) two or more coins can be thrown in together, (2) The port for putting in coins and the port for taking out change are of unified construction and simply adjoin each other, (3) Directional signs in braille are added. (author)

  8. Mercury inclusion a waste processing; Suigin ganyu haikibutsu no shori

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-06-05

    BNL (Brookhaven National Laboratory) developed process (SPSS) which granularly stabilized the mercury contamination material including the radioactive material. In the SPSS Inc. method, the sulfur similarly is made to react on the mercury with the amalgamation, and mercury sulfide of low vapor pressure is formed at the low solubility. In the new process, in this amalgamation, the dispersion of the fine powder becomes a problem, and the pollutant mixes with 'the sulfur (95%)-dicyclopentadiene (5%) mixture', and it pours in melting post-container heated to 120 degrees C. The possible uniform composition lump fixes mercury and radioisotope as the result. 200 of the EPA standard in the product by the pilot study the 0.5-3ppb mercury which drastically fell below ppb was contained. In addition, BNL has planned the test operation in the commercial. In the future, the processing of a mercury inclusion waste in the radioactive waste disposal authorization facilities will become possible, if the actual/real process is established. (translated by NEDO)

  9. Study on jellyfish treatment. Kurage shori ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Sakata, S.; Yoshinobu, N. (The Chugoku Electric Power Co. Inc., Hiroshima (Japan))

    1991-09-20

    Jellyfish assaulting in a great number during summer into water intakes at power plants is disposed of by land filling in plant premises. Discussions on treatment methods and tests using test machines have been carried out over four years to save disposition area and prevent odors. While it is well known that jellyfish melts in fresh water, the basic tests identified that heating and alkali treatment is effective, the fish shrinks and reduces rapidly when boiled to 80{degree}C or higher, it can be cut and crushed easily, and its solute has a high COD. A test machine having a treatment capacity of 5 tons an hour was used. The machine consists of a cutter unit, a supply pump, a draining box, a heating tank, a circulation pump and a mesh conveyer, and is capable of batch and continuous treatments. A full-size based test machine improved of transferring and solid treating functions was tested to a satisfactory result of achieving the initial intention. Installation of a full-size machine is under way. 12 figs., 8 tabs.

  10. Synthesis of new erodable polymers response to environmental stimuli; Atarashii kankyo chowagata bunkaisei plastic no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    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.

  11. New concept of energy storage material. ; Disulfide polymer. Atarashii gainen no energy chozo zairyo. ; Disulfide polymer

    Energy Technology Data Exchange (ETDEWEB)

    Visco, S.; Jonghe, L. (Lawrence Berkeley Laboratory, Cyclotron Road, CA, (United States)); Ue, M. (Mitsubishi Petrochemical Co. Ltd., Tokyo (Japan))

    1994-04-05

    This review article introduces new type cells, which are based on a new concept of electrochemical polymerization and depolymerization of disulfide polymer. For the disulfide polymer, chemical molecular designing can be conducted. Additionally, the disulfide polymer has low price and low toxicity. High theoretical electric capacity of the disulfide polymer is attractive from the viewpoint of the energy storage. It is illustrated that the middle temperature lithium solid polymer electrolyte cell and sodium solid polymer electrolyte cell, and the room temperature lithium gel electrolyte cell have high performances. Especially, it is shown that the lithium/polyethylene oxide/disulfide polymer cell has an excellent performance in the cycle characteristics and power density. It is also verified that the sodium/[beta][prime][prime]-alumina/disulfide polymer cell has a high reversibility in the oxidation-reduction polymerization and depolymerization reaction. 23 refs., 2 figs., 2 tabs.

  12. Suppression of numerical dispersion using FD modified operators; Atarashii sabunho no enzanshi wo mochiita suchi bunsan no yokusei

    Energy Technology Data Exchange (ETDEWEB)

    Takeuchi, N.; Geller, R. [The University of Tokyo, Tokyo (Japan). Faculty of Science

    1996-05-01

    The author, et al., have developed a formal evaluation theory for errors in numerical solutions and derived on the basis of this theory the conditions that a modified error minimizing operator should satisfy. A modified operator was derived for a calculus of finite difference in the time domain making use of this error evaluation theory. In this study, a modified operator was derived for O (2, 2) in the calculus of finite difference in time, and the operator was used in the calculation for the old and new methods about 1-dimension inhomogeneous media, and the two were quantitatively compared in CPU time and calculation accuracy. The calculation used 500 space grids and 5000 time grids. With the ratio of the time grid gap and space grid gap are kept constant, both CPU time and calculation accuracy were in proportion to the square of the number of grids. It was found in view of the result that the new method, as compared with the old method, needs only approximately 1/20 of CPU time in performing calculations of the same precision and that it maintains calculation accuracy that is approximately 20 times higher in the said CPU time. 4 refs., 2 figs., 1 tab.

  13. New-type spin polarized electron source and its applications; Atarashii spin henkyoku denshi sengen to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Saka, T.; Kato, T. [Daido Steel Co. Ltd., Nagoya (Japan); Nakanishi, T.; Okumi, S. [Nagoya University, Nagoya (Japan); Horinaka, H. [Osaka Prefectural University, Osaka (Japan). College of Engineering

    1998-08-20

    This paper reveals that using distorted thin GaAs film can realize high polarization in spin polarized electron ray, and introduces properties of the developed ray source. The paper also touches on the application thereof to property physics. Realization of the high spin polarization is based on use of the `optical polarization method`. With this method, electrons in specific spin state are excited into a conduction band by utilizing the selection law used when valency electrons of zincblende type crystal such as GaAs absorb circular polarization. These electrons are taken out into vacuum and used as polarized electron beams. In order to realize uniformly distorted GaAs film, a method was discussed, with which the thin GaAs films are grown on substrates with different lattice constants, and the films are distorted by means of lattice mismatch. GaAs(1-x)Px was used for the substrates. GaAs(1-x)Px has the lattice constant decrease as the P`s mixed crystal ratio `x` increases. If a thin GaAs film is grown on this substrate, it is possible to obtain GaAs which is subjected to compression stress in the direction parallel with the growing surface, and tensile stress in the vertical direction. 13 refs., 5 figs., 1 tab.

  14. Leading research on brain functional information processing; No kino joho shori no sendo kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This research aims at searching the concept of an information processing device with a fully different architecture from a previous ones based on the study on human brain function, sense and perception, and developing the basic fabrication technology for such system, and realizing the human-like information processing mechanism of memorization, learning, association, perception, intuition and value judgement. As an approach deriving biological and technological models from experimental brain studies, the model was derived from the brain functional information processing based on brain development/differentiation mechanism, the control mechanism/material of brain activities, and the knowledge obtained from brain measurement and study. In addition, for understanding a brain oscillation phenomenon by computational neuroscience, the cerebral cortex neural network model composed of realistic neuron models was proposed. Evaluation of the previous large-scale neural network chip system showed its ability of learning and fast processing, however, the next-generation brain computer requires further R and D of some novel architecture, device and system. 184 refs., 41 figs., 2 tabs.

  15. 3D pre-stack time migration; Kiruhihoffuho ni yoru sanjigen jugo mae jikan migration shori

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-05-27

    This paper reports pre-stack migration in elastic wave exploration as to its algorithm and examples of processed data. The time migration processing hypothesizes that seismic waves propagate linearly. It calculates travel time by dividing the sum of the straight distance from a vibration transmitting point to an image point and the straight distance from the image point to a vibration receiving point with RMS velocity given as a parameter. To maintain the relative relation of amplitude sizes, the signal on an elliptic body is made smaller in inverse proportion to the size of that elliptic body. With regard to apparent interval of input trace as seen from the reflection surface, or with regard to density, the signal is made smaller by cos{theta} times. While this program deals with three-dimensional migration, its output turns out as an arbitrary two-dimensional plane. The program requires a huge amount of data processing, whereas a method is used, that the input trace is divided, each group is processed by using separate computers, and the results are summed up. 3 refs., 4 figs.

  16. Digital radiography system, ADR-2000A; Digital gazo shori sochi ADR-2000A

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    A digital radiography system, ADR-2000A has been developed. It provides high-precision images (2,048 by 2,048 pixels), and is applicable to digestive organ examination and angiography. Its major features are: (1) real time collection of the images (2,048 by 2,048 pixels, 10 bits, and 2.5 frames/s), which are useful for diagnosis of, e.g., the esophagus, radiographic timing for which is difficult (2,048 by 2,048 pixels, 10 bits, and 3.75 frames/s), (2) parallel processing for image observation (high-speed image processing), and automatic filing/filming/network image transfer, while the data are being collected, to increase examination through-put, and (3) the advanced PC techniques and the world standard medical image communication techniques adopted to decrease size and weight, and to help systematize hospital jobs, respectively. (translated by NEDO)

  17. New technology of shochu drainage treatment by distillation; Joryu ni yoru shochu haieki shori no shingijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Hatate, Y.; Aiko, R.; Ozuno, Y.; Uemura, Y.; Kairiku, T. [Kagoshima University, Kagoshima (Japan). Faculty of Engineering; Shimoda, M.; Iwata, T. [Sanwa Shurui Co., Oita (Japan); Kashiwada, M. [Miyazaki Food Processing R and D Center, Miyazaki (Japan); Kawano, Y. [Miyazaki University, Miyazaki (Japan). Faculty of Engineering

    1997-09-30

    In order to solve the waste liquor problem in the shochu industry, a distillation process which uses very little energy and can reduce BOD was proposed, and demonstration tests were carried out. The present study deals with a process to remove 90% of alcohol contained in the shochu waste liquor as distillate while extracting the distillate containing ethanol of about 70% by weight little by little. The proposed distillation device to rectify the shochu waste liquor continuously is connected directly to a multi-effect evaporator. Alcohol vapor of 2% by weight discharged from the evaporator solidifies partly, and is returned to aqueous solution, fed to plates in a distillation column, and part of it is supplied into the column bottom remaining in the vapor form. A demonstration test using a simple four-stage rectification column obtained the following conclusions: it was verified that the performance of the distillation column was as has been forecast initially; and it was demonstrated that large reduction in BOD in the Shochu drain can be achieved by using a simple rectification system. 6 refs., 4 figs., 2 tabs.

  18. Relationship between stacking process and resolution; Jugo shori to bunkaino ni kansuru kiso kenkyu

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-10-01

    This paper evaluates influences of stacking of incident angles against the reflecting surface on the resolution. Basic equations for evaluating the influences were deduced. A simple evaluation method has been provided using these equations. The present evaluation method is considered to be useful for acquisition design, processing, and interpretation of data as an indicator. According to the equations introduced in this study, there are some demerits for stacking traces whose incident angles were large. A total reflection region often appears due to the decreased resolution, and the vertical resolution decreases prior to stacking. Occasionally, it is not effective to remove traces having large incident angles from the viewpoint of resolution. In practice, the selection of most suitable trace through trial and error is not easy due to difference in individual regions. An evaluation method must be discussed, by which the optimal trace can be selected automatically during the data processing. 6 refs., 15 figs.

  19. Introductory study of brain function data processing; No kino joho shori no sendo kenkyu

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    NONE

    1998-03-01

    An investigational study was conducted of the brain function aiming at developing an interface with the same function as humans have. In the study, the most up-to-date information/knowledge and future problems were examined on brain measurement, brain modeling, making a model an element, and the brain function data processing system. As to the brain measurement, the paper took up the multielectrode simultaneous measuring method and the optical multipoint measuring method as an invasive measuring method, and the functional magnetic resonance imaging, near-infrared spectroscopy, magneto-encephalography, and electro-encephalography as a non-invasive measuring method. Relating to the brain modeling, studies were made on senses of sight and smell, the movement control and the learning. As to making a model an element, how to make the modeled function a chip on silicone for example becomes the problem. Reported were two reports on making the sense of sight an element and one report on making the parallel dispersed processing mechanism of brain an element. About the brain function data processing system, three reports were made on the present situation, matters in question, and the future development of the system in the case of catching data processing as a system taking a step ahead from making the model an element. 250 refs., 74 figs., 11 tabs.

  20. Research on coal ashes treatment technology. Sekitan bai shori gijutsu ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Tanaka, Masao; Hotari, Matajuro; Tokuda, Hitoshi; Eto, Yoshitake (Kyushu Electric Power Co., Inc., Fukuoka (Japan))

    1989-03-30

    Effective utilization and reclamation treatment of coal ashs of about 20% in quantity of coal which is produced by coal burning, become big problem. In order to research the treatment technology for coal ashs, the fundamental experiment in laboratory and ash treatment experiment on site were conducted by bench test for two years from the 1987 to 1988 fiscal year, and foundation characteristics of high density slurry, its environmental property, an selection of equipment such as mixer and pump were studied. The high density slurry system is a method that coal ashs are mixed with water at about 40-50% moisture content, placed into undersea and reclaimed. The result of the high density slurry system showed that density was about 10% larger in the value than that of dry system and the density of slurry was much affected by moisture content, and that the lower moisture content at the placing was, the larger moisture content was after the placing. the system was superior in strength and environmental property than those of conventional system, then its availability was able to be confirmed and verified. 9 refs., 71 figs., 15 tabs.

  1. Expense reduction in waste water treatment facility. Haisui shori setsubi no keihi setsugen

    Energy Technology Data Exchange (ETDEWEB)

    Minami, S. (Kyushu Electronic Metal Co. Ltd., Saga (Japan))

    1991-02-04

    An attempt was made on reducing the treatment expense through improving the methods of waste water treatment and dehydration in silicon wafer manufacturing processes in a semiconductor factory. Chemicals used for treating miscellaneous-use waste waters were changed to cation organic coagulants to reduce the use amount of aluminum sulfate and neutralizers. The Ca (OH) {sub 2} injection interlocked with a pH meter in HF system treatment, and the use amount of neutralizer were reduced. The high molecular coagulant used for waste water treatment was changed from paste to powder to improve its solubility during the winter season. The pumps were reviewed, the air lift blowers were discontinued, and the integration of pump types, the size reduction and inverter association of pumps motors were proceeded. For the sludge dehydrating machine, tests were carried out on an adequate injection amount of coagulants, and the injection points were changed. The flow rate control was changed from diaphragm system to ball system to stabilize the raw sludge flow. Among the high molecular coagulants used in the dehydrating machine, the cation coagulant was discontinued of its use. These improvement efforts resulted in an annual power saving of 2.59 million yen, and a resource saving equivalent to 66.144 million yen.

  2. Processing of a PVC waste by the metallic recycling process; Kinzoku no risaikuru purosesu ni yoru PVC haikibutsu no shori

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-08-05

    Mr. Derek Fray of Cambridge University was PVC '99 conference held in Brighton in the United Kingdom some time ago, and the strip process of tin, zinc, metal of the copper in the iron recycling reported the possibility that the problem of a PVC waste could be solved. Though hydrogen chlorides, carbon dioxide, steam, etc. arise, when PVC burns in the excessive air, they are as the hydrogen chloride with these impurity forms the chlorides with nonferrous metal except for the iron. For example, it becomes possible that it recovers by the condensation by forming the volatile tetrachloride tin, when it deals with the steel plate which coated the tin in 130 degrees C PVC deriving gas. This reaction is the diffusion control in vapor phase, and there is no necessity of putting the object in the shredder. This process can be applied to the case in which there is the polymer coating like the canned food in addition to the tin coating. And, it can be also applied to the removal of zinc from the steel plate that for automobile was galvanized. By the heating of the steel plate, zinc is melted, and it evaporates, and it is recovered as a zinc oxide dust, and dangerous object and problem of the processing occur. In the meantime, in making to be the volatile zinc chloride in about 10 minutes, when it deals with this steel plate with chlorination reagent (chlorine, hydrogen chloride) and excessive air at 750 degrees C, zinc can be removed. It is to electrolyse this zinc chloride in condensation and after the purification, and high-pure zinc oxide and chlorine are got. The person though in Europe, this report has not pulled the interest very much, and it is sure of that this research is realizable in the laboratory level, and it is lamented that the enterprises in which a waste is arising, etc. do not show the interest in present state. (translated by NEDO)

  3. Single chip system LSI for digital still camera signal processing; Doga taio digital still camera yo shingo shori one chip

    Energy Technology Data Exchange (ETDEWEB)

    Yamada, T.; Okada, S.; Kobayashi, A.; Komura, Y.; Kiyozaki, K. [Sanyo Electric Co. Ltd., Osaka (Japan)

    1998-11-01

    This paper introduces the summary of development of a single chip system LSI for digital still camera (DSC) signal real-time processing, which can deal with animation. In developing the LSI, a DSC was identified as a system device, and the target was set to developing a system LSI capable of processing all of the signals from the DSC. In the real-time signal processing, signal processing of animated images and still images with less shutter waiting time was realized by mounting a dedicated M-JPEC core and by signal-processing contraction and elongation of the JPEG with the hardware at high speed. Writing and reading at higher speeds into and from image buffer memories to reduce the shutter waiting time and higher speed transfer of image data were realized by making a dual path architecture inside the LSI. Other functions performed by the software in the built-in RISC core include recording and replaying of voice, preparation of AVI files to replay the images on home-use TV sets, and a window function for DSC to synthesize still images. 7 refs., 8 figs., 2 tabs.

  4. On the relationship between stacking process and resolution. 2; Jugo shori to bunkaino ni kansuru kiso kenkyu. 2

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-05-27

    With respect to concept of resolution in seismic exploration using the reflection method, detailed considerations were given on processes of forming the resolution as a result of arranging observation points at vibration transmitting and receiving points. In the discussion, numerical experiments were carried out, in which the scattering stacking process is applied in a model having one scatterer existing in homogeneous media. The experiments investigated an imaging formation process of the scatterer when arrangement of the vibration transmitting and receiving points were changed from a coarse condition to a dense condition while the number of transmitting and receiving points is being increased. Resolution is created if waveforms having finite frequencies are used as input, and the imaging is performed by utilizing the limited number of vibration receiving and transmitting points. If the concept of equi-travel plane is used under these conditions, the equi-travel planes perform negation with each other, and it was indicated that visual resolution is expressed by how good the negating effect is. It was discovered that such concept of the resolution is quite ambiguous in terms of engineerings. 2 refs., 17 figs.

  5. Research and development of jellyfish compaction technology; Kurage gen'yoka shori gijutsu ni kansuru kaihatsu kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Uemura, N. [Kansai Electric Power Co. Inc., Osaka (Japan)

    1999-12-10

    An on-site test is conducted of devices for reducing in a short time the volume of jellyfish that flow into power plants. There are three methods to reduce the volume of jellyfish by separating water from them, which are heating, pressing, and chemical. The chemical treatment is not an object of this test because it is expected that the volume reduction rate by this method will be too low. For the achievement of a reduction rate of 80%, the two methods, physical and crushing, are compared at the laboratory level. It is found that the crushing method is superior because it can dispose of jellyfish in a shorter time. Using this method, the crushed jellyfish is separated into drain and bubbles, the latter containing jellyfish fragments. An on-site test is conducted using a general-purpose crusher. The relationship between the filter diameter (1-5mm) and the separation rate is investigated, and it is found that separation proceeds more rapidly when the filter diameter is smaller. It is found that the addition of a certain chemical accelerates the separation. COD (chemical oxygen demand) is 300-490mg/l in the drain, and BOD (biological oxygen demand) 400-500mg/l, with COD having increased by approximately 20%. A study is scheduled to be conducted using an experimental apparatus. (NEDO)

  6. On the relationship between the irregular reflector and the data processing by stacking; Hanshamen keijo to jugo shori ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-05-01

    An examination was made on the possibility of data processing by stacking with scattered waves assumed in a seismic exploration analysis (diffraction stacking method). In the examination, a CDP stacking method and the diffraction stacking method were compared through numerical experiments in the case of imaging a flat reflection surface and an irregular reflection surface. As a result, it was revealed that the CDP stacking method for stacking mirror reflection waves was merely a processing to raise S/N ratio while the diffraction stacking method for stacking with scattered waves assumed contained a migrational aspect as well as an aspect to raise S/N ratio. Consequently, it was shown that, if an oscillator was properly arranged, a structural imaging was possible not by the shape of a reflection surface but by the diffraction stacking method. Additionally, the diffraction stacking method revealed that the imaging effect varied by frequency with the stacking effect decreased at high frequencies, and that no stacking effect decreased at low frequencies but resolution lowered in horizontal direction. 4 refs., 8 figs.

  7. Aspirin content determination with control systems by image processing technology. Gazo shori gijutsu wo katsuyoshita jozai aspirin kensa sochi

    Energy Technology Data Exchange (ETDEWEB)

    Nakamura, K. (Lion Corp., Tokyo (Japan))

    1990-08-05

    An inspection apparatus for aspirin tablets utilizing image processing technology was developed. One side of a tablet consists of aspirin layer and another side consists of alkiline layer. The alkaline layer is opaque at all but the aspirin layer is translucent. Image of overall configuration of the tablet is taken in CCD camera by illumination from all surrounding sides. The area is measured by using these images. Then, when switching off the surrounding illumination and illuminating the aspirin side, only aspirin side layer shines. The area is determined by taking the image in CCD. Aspirin content is calculated by the ratio of overall images to aspirin image and the predetermined tablet weight. Tablets of different aspirin content were prepared, and the content determined by this method and the chemically determined contents were compared. High correlation was found between both contents, indicating the validity of the image processing method. When the aspirin content is out of 330 {plus minus} 10mg, the controlling mechanism works, by which unmanned operation will be possible. 8 figs.

  8. Data processing for the mise-a-la-masse survey; Ryuden den`iho tansa no data shori

    Energy Technology Data Exchange (ETDEWEB)

    Hashimoto, K.; Mizunaga, H.; Ushijima, K. [Kyushu University, Fukuoka (Japan). Faculty of Engineering; Kaieda, H. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1996-10-01

    Data processing method was studied for mise-a-la-masse survey. Mise-a-la-masse method using wells as current sources measures resultant ground surface potential difference, and detects underground local resistivity anomaly. To extract resistivity anomaly largely different from surroundings, the anomaly is extracted as difference between the estimated value of regular resistivity structure (background) and potential difference or apparent resistivity. The following three approximations were attempted to estimate the background: the theoretical equation assuming isotropic homogeneous resistivity structure, that assuming horizontal multi-layered structure and the exponential function of distance from linear electrode for apparent resistivity, and these were compared with each other by numerical model experiment. The data processing method which determines the resistivity structure of the background and the residual of apparent resistivity distribution by inversion analysis using the above second equation, could precisely extract local resistivity anomaly, and estimate the depth distribution of resistivity. 5 refs., 10 figs., 2 tabs.

  9. Future and present condition of waste treatment facilities for foundry; Chuzo kojo haikibutsu shori setsubi no genjo to shorai

    Energy Technology Data Exchange (ETDEWEB)

    Takada, M. [Shinto Kogyo Co. Ltd., Tokyo (Japan)

    1997-12-25

    The current state of waste disposal facilities in foundries is introduced, and the future way that it should be is investigated from the viewpoint of environmental management of manufacturing plants which is shifting from taking countermeasures for environmental conservation to giving priority to environmental conservation. As the methods for waste disposal, there are a case of reusing it to decrease the quantity of waste as far as possible and a case of converting it into valuable material for reuse by other industries as valuable material. In connection with the facilities for decreasing the quantity of generated waste, outlines are given on the recovery system for spilled sand, classifiers (sieve, air classifier), separators (magnetic separator, shot separator), sand reproducing system, humidifier, and granulators (briquette of turning, granulation of dust). As regards future disposal facilities, investigation must be made on the support facility for production so as to reduce waste generation as far as possible, facility which sort generated waste reliably for easy disposal, facility for material recycling, and facility for realizing zero emission. 5 refs., 5 figs., 5 tabs.

  10. Development of new finite element by source method. 2nd Report. Plate bending element; Source wo mochiita atarashii yugen yoso no kaihatsu. 2. Itamage yoso

    Energy Technology Data Exchange (ETDEWEB)

    Neki, I.; Tada, T. [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)

    1996-12-31

    This paper reports a method to develop a new finite element by source (FES) for a two-dimensional plane problem and a three-dimensional solid problem as a method to analyze ship body structures. The paper describes development of a plate bending element by using a similar method, and the fundamental principle thereof. The present method can prepare a finite element of an arbitrary shape by simply providing a contact point only on a boundary. It can also derive good calculation accuracy with less number of contact points and elements. These facts are shown by examples of analyses on a square plate, a triangle plate and a semi-circular plate. Particularly, since a plate bending problem has a large order of differential calculus in a governing equation, this method being a semi-analytical method derives a result with very good accuracy even with less number of contact points. A hypothetical boundary method or a hypothetical electric charge method presents not a very high accuracy even if a large number of contact points are provided. This is because the method hypothesizes only a bending moment vertical to the boundary, but does not consider a source of the moment relative to the boundary. In contrast, the present method hypothesizes both of bending and twisting as the sources, hence its accuracy is better than with the above two methods. 5 refs., 11 figs., 7 tabs.

  11. 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

    Energy Technology Data Exchange (ETDEWEB)

    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)

  12. Recent progress in exchange membranes. ; Present status of ion-exchange membrane technology. Ion kokanmaku no aratana tenkai. ; Ion kokanmaku no atarashii tenkai

    Energy Technology Data Exchange (ETDEWEB)

    Seno, M. (Nihon Univ., Tokyo (Japan). College of Science and Technology)

    1993-11-20

    A discrimination function of ion charge, the ion-exchange membrane shows, originates in the high fixed charge density, the ion-exchange membrane has. A progress of the membrane manufacturing technology is remarkable and therefore, while the membrane in an initial stage of development had in an order of a thickness of 0.25mm, and a resistance of 5-10S[sup -1]cm[sup 2] (25[degree]C, in 0.5M NaCl), the membrane currently with a thickness of 0.11-0.15mm, and a resistance of 1.2-2.0S[sup -1]cm[sup 2] occupies a main current. However, when it is thought that a proportion, the support part of membrane Vp occupies, reaches to 70%, and the liquid phase part Vs is less than 30%, and moreover in a degree of 30% of it is non effective part located outside the donnan membrane, a further progress from now on is still expected. The ion-exchange membranes are mainly used as a diaphragm for the electrodialysis and electrolytic process. An appearance of the chemically extremely stable perfluorocarbon system membrane makes the various new technological development possible in the salt electrolysis, solid polymer electrolyte water electrolysis, piezodialysis through charge mosaic membrane, water splitting through bipolar membrane and so forth. 37 refs., 6 figs., 4 tabs.

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

    Energy Technology Data Exchange (ETDEWEB)

    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.

  14. New, high-capacity alloys for hydrogen batteries. Vanadium alloys with microcurrent collecting function; Atarashii suiso denchiyo koyoryo gokin. Maikuro shuden kino wo sonaeta vanadium gokin

    Energy Technology Data Exchange (ETDEWEB)

    Sakai, T. [Osaka National Research Institute, Osaka (Japan)

    1996-05-01

    In an attempt to provide vanadium-base alloys with microcurrent collecting functions and corrosion resistance, their compositions and metallic microstructures are controlled. This leads to development of a new alloy for batteries, which shows an electrical capacity at least 1.5 times higher than that of the conventional rare-earth alloys. A detailed phase diagram of the V-Ti-Ni systems is drawn for hydrogen occluding, to determine the optimum composition. For the electrode characteristics of V3TiNix, the discharge characteristics are notably improved as Ni content increases. For the microstructures, Ni is scarcely dissolved in the base phase of V, withdraws Ti from the base phase, and separates out in the grain boundaries as a TiNi phase dissolving part of V, to form micronetworks. These phenomena are considered to impart the internal microcurrent collecting function to the vanadium alloy. The composition of V3TiNi0.56 shows an initial capacity of 400Ah/g or higher. 3 refs., 5 figs.

  15. Current development in bioassay for evaluation of environmental pollution in water. Evaluation by the micronucleus assay; Bioassay no atarashii nagare. Shokaku shiken ni yoru hyokaho

    Energy Technology Data Exchange (ETDEWEB)

    Hayashi, M. [National Institute of Hygienic Sciences, Tokyo (Japan)

    1996-10-10

    A method is introduced for observing micronuclei attributable to chromosomal aberration as an index of water contamination. A fragment not containing a kinetochore resulting from chromosomal aberration in structure is left behind after a division for the formation of a very small nucleus independent from the daughter nucleus. This is what is called the micronucleus, which reflects the chromosomal aberration. For monitoring environmental contamination through examining aquatic organisms and utilizing their genetic toxicity as the index, the practical method is to carry the water specimen into the laboratory for the evaluation of genetic toxicity. The tests that can be applied in this method include a chromosomal aberration test using a bitterling embryo at its beginning stage, a micronucleus test using the sea urchin at its morphogenetic stage, and a unicellular gel electrophoresis test using shells such as scallops. The micronucleus test using peripheral blood of fish is advantageous in that it evaluates water environments in situ, but its sensitivity in detection is not out of question. This may be solved by automating the monitoring processes and increasing a great deal the number of cells to be examined. 21 refs., 3 figs., 2 tabs.

  16. Biocatalysis in organic synthesis. Use op pyruvate decarboxylase; Seitai shokubai wo riyosuru yuki gosei. Furukute atarashii pirubin san dattansan-koso

    Energy Technology Data Exchange (ETDEWEB)

    Sugai, T. [Keio Univ., Yokohama (Japan). Faculty of Science and Technology

    1995-02-01

    For a purpose of elevating the enzyme activity to decompose a pyruvic acid, an investigation on 2 points was carried out as follows: Namely they were a concentration of the coenzyme, as well as, a forced ventilation to remove more efficiently the acetaldehyde and carbon dioxide generated. As a result, the enzyme activity per 1 kg of a dry bread enzyme fungus body on market could be raised up to about 30 units. By using this method an investigation on the enzyme synthesis of the sialic acid was actually executed, through the aldol reaction and the enzyme decomposition of an excessive pyruvic acid, the sialic acid could be obtained with a yield of 60%. In addition 2 stage improvement method that firstly by adding the pyruvic acid the carbon-carbon coupling formation was preferentially performed, and subsequently after the raw material, aldehyde disappeared a reduction of the ketol was done by adding a sugar, was tried. Furthermore at a stage of the decarbonization reaction the nitrogen ventilation has been performed, and by doing so the acetaldehyde was always removed to the outside of a system, and in consequence a formation of the acetoin was restrained. As a result, an isolation yield of the diol has become about 17%. 9 refs.

  17. Development of the hull inspection robot (RTV-SHIP); Sentai kensayo suichu robot (RTV-SHIP) no kaihatsu (atarashii sentai kensaho no ichiteian)

    Energy Technology Data Exchange (ETDEWEB)

    Nakata, Y.; Otsuka, M.; Ozawa, H.; Konosu, M. [Mitsui Engineering and Shipbuilding Co. Ltd., Tokyo (Japan)

    1997-08-01

    A compact and lightweight underwater RTV robot (RTV-SHIP) that enables the remote sensing in the double-shell structure of a tanker and the six-freedom motion control was developed based on the technology of the conventional portable underwater robot. The motion performance test in a water tank showed that the RTV-SHIP can freely access the manhole in the double-shell structure of a tanker and completely satisfies the thrust and swing force required for movement and measurement in a tank. The in-tank function confirmation test also shows that the main measurement items such as positioning in the tank, large deflection of panels, and plate thickness have a satisfactory measurement accuracy and that the RTV-SHIP has the same tone discrimination function as for a visual check. The method of inputting the tank shape during measurement and miniaturizing the recording unit should be improved until the RTV-SHIP is put to practical use. This system can be widely used by improving the above points according to the result of a future measurement test for the actual ships. 1 ref., 9 figs.

  18. Development of newly engineering technology based on computer analysis for dust diffusion; Funjin kakusan kaiseki gijutsu wo kihon to shita atarashii engineering gijutsu no tenkai

    Energy Technology Data Exchange (ETDEWEB)

    Ishii, K.; Murahashi, Y.; Kawakami, H.; Tanaka, K. [Nippon Steel Corp., Tokyo (Japan)

    1997-07-30

    Nippon Steel has made a comprehensive survey of the space environment designing technology that can precisely cope with the needs required for a space in a plant in a very wide range from the ventilation problem in steel mill to the turbulence problem in semiconductor plant, through accomplishing the development of computer analysis technology for dust diffusion that can estimate and control `air flow` and `dust movement` in an electric angstrom [furnace plant]. This paper describes the basic concept for establishing the computer analysis technology for dust diffusion and the concrete measures to solve accompanying problems, and further enters into details how the new engineering technology has innovated technical measures to solve problems, the new engineering technology which introduces a concept of both estimation and control to attain objects such as to curtail the equipment cost and so by estimating the `air flow` and `dust movement` to create both a new flow and movement depending on needs. 3 refs., 20 figs., 8 tabs.

  19. Development of new type of nonlinear optical materials with a function of ultrafast optical modulation; Chokosoku hikari reiki hencho kino wo motsu atarashii hisenkei kogaku zairyo no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Sakaguchi, H. [Shizuoka University, Shizuoka (Japan). Research Institute of Electronics

    1995-12-15

    Ultrafast modulation of second harmonies from a Langmuir-Blodgett film consisting of a ruthenium complex was demonstrated for the first time. The mechanism of the modulator of SHG intensity on laser irradiation was ascribed to the change of molecular hyperpolarizability of the ruthenium complex on going from the ground state to the excited state. 9 refs., 12 figs.

  20. Effect of heat treatment changes on swelling treatment of coal; Sekitan no bojun shori sayo ni oyobosu netsushori henka no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Satsuka, T.; Mashimo, K.; Wainai, T. [Nihon University, Tokyo (Japan). College of Science and Technology

    1996-10-28

    Discussions were given on effects of heat treatment at relatively low temperatures as a pretreatment for coal liquefaction on coal swelling and hydrogenolysis reaction. Taiheiyo coal was heated to 200{degree}C for one hour as a pretreatment. The attempted heating methods consisted of four steps of rapid heating (6.7{degree}C/min)quenching (20{degree}C/min), rapid heating/natural cooling (0.7{degree}C/min), heating (1.0{degree}C/min)/quenching, and heating/natural cooling. The swelling treatment was composed of adding methanol benzene into heat treated coal, and leaving it at room temperature for 24 hours. The hydrogenolysis was carried out by using a tetralin solvent and at an initial hydrogen pressure of 20 kg/cm{sup 2} and a temperature of 350{degree}C and for a time of one hour. Hydrogenolysis conversion in the heat treated coal was found lower than that of the original coal because of generation of liquefaction inactive components due to thermal polymerization. When the heat treated coal is swollen by using the solvent, gas yield from the hydrogenolysis reaction decreased due to gas suppression effect, and the conversion was lower than that of the original coal. Heat treatment suggests densification of the coal structure. Swollen coal shows no conspicuous difference in the heat treatment methods against the hydrogenolysis due to the swelling effect. 3 refs., 5 figs., 1 tab.

  1. Effect of partial solution treatment on martensitic transformation of 12%Cr steels; 12% Cr ko no martensite hentai ni oyobosu bubun yotaika shori no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Tsuchiyama, T.; Takai, S. [Kyushu University, Fukuoka (Japan)

    1996-12-01

    When high chromium martensitic steels are subjected to partial solution treatment in (austenite+M23C6, carbide) two -phase region, not only the coarsening of austenite grains is effectively suppressed by insoluble-carbide particles, but also martensitic structure, which has formed during cooling, is refined through the treatment. In this study, the mechanism of refining of martensitic structure was discussed in Fe-12%Cr-C ternary alloys by investigating the relation between Ms temperature and solution treatment conditions, and the effect of insoluble-carbide particles on the substructures such as martensite-lath or -block. The Ms temperature of steels with full solution treatment simply depends on the content of C and Cr, but that of steels with partial solution treatment is dependent on the effective chemical composition of matrix, which is evaluated by taking the amount of C and Cr in insoluble-carbide away from their total content. Refining of martensite-block structure within grains is not caused directly by insoluble-carbide particles, but done indirectly through the refining of austenite grain size. While, on the martensite-lath structure, insoluble-carbide particles supply nucleation sites for laths, and work also as obstacles for growing laths. As a result, martensite-laths in steels with partial solution treatment are divided finely by insoluble carbide particles, and the arrangement of laths is tend to be confused. 14 refs., 10 figs., 1 tab.

  2. Effects of molten metal treatment method on soundness and strength of diecastings; Diecast seihin no naibu hinshitsu to jittai kyodo ni oyobosu yoto shori hoho no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Onishi, N.; Takaai, T. [Yamanashi University, Yamanashi (Japan). Faculty of Engineering; Kageyama, N. [Hitachi Metals, Ltd., Tokyo (Japan)

    1996-07-25

    Experiment and examination were made on a new diecasting process for the purpose of improving quality of diecast products. The improvements in the process were such as atmospheric seal, supply of molten metal with less dross by employment of a launder method, prevention of oxidation of molten metal surface through a molten metal feeding method by the use of an electromagnetic pump, improvement of diecasting atmosphere by means of vacuum atmosphere, and control of gas generation in a diecasting process by the use of a powder release agent and powder lubricant. The following results were obtained by the experiments. The variance in the strength of improved diecast products was reduced to one fifth in tensile strength, and one half in compression rupture strength. The gas quantity of the cast products using the improved diecasting method was 3 to 7cm{sup 3}/100g, resulting in the reduction of approximately 40-80% compared to ordinary diecast products. For the process to stabilize the strength of diecast products, it was effective to utilize the method of isolating air from molten metal and to use the powder release agent/lubricant generating less gas. 9 refs., 15 figs., 1 tab.

  3. FY1995 study of low power LSI design automation software with parallel processing; 1995 nendo heiretsu shori wo katsuyoshita shodenryoku LSI muke sekkei jidoka software no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The needs for low power LSIs have rapidly increased recently. For the low power LSI development, not only new circuit technologies but also new design automation tools supporting the new technologies are indispensable. The purpose of this project is to develop a new design automation software, which is able to design new digital LSIs with much lower power than that of conventional CMOS LSIs. A new design automation software for very low power LSIs has been developed targeting the pass-transistor logic SPL, a dedicated low power circuit technology. The software includes a logic synthesis function for pass-transistor-based macrocells and a macrocell placement function. Several new algorithms have been developed for the software, e.g. BDD construction. Some of them are designed and implemented for parallel processing in order to reduce the processing time. The logic synthesis function was tested on a set of benchmarks and finally applied to a low power CPU design. The designed 8-bit CPU was fully compatible with Zilog Z-80. The power dissipation of the CPU was compared with that of commercial CMOS Z-80. At most 82% of power of CMOS was reduced by the new CPU. On the other hand, parallel processing speed up was measured on the macrocell placement function. 34 folds speed up was realized. (NEDO)

  4. Brain as information processing function. ; Discussion mainly on voice recognition. Joho shori kino to shite no no. ; Onsei ninshiki wo chushin to shite

    Energy Technology Data Exchange (ETDEWEB)

    Nara, Y. (Fujitsu Ltd., Tokyo (Japan))

    1991-12-20

    This paper describes a voice recognition equipment capable of transforming what is described in a human voice into letters and sentences, with respect to an attempt to cope with changes in the voice, and an attempt to utilize speech knowledges. First, a development was achieved of sound element transforming rules to express transformation phenomena in the sound elements (consonants and vowels) using the form of context dependent rules. Next, a voice transformation network was fabricated by adding all of the transformations that can occur in Kana notations of words, using groups of the voice transformation rules. Further, collation and similarity calculations were carried out on input voices and each network, whereas a network having the least similarity is used as the recognition result. As a result, the recognition rate reached as high as 98% or higher. In addition, a language processing using the lexical functional grammar (LFG) was conceived as an attempt to utilize language knowledges for the voice recognition. First, a sound processing section recognizes pronounced voices by clause, and the candidate sentence selecting section generated candidate sentences. Then, the sentence construction analyzing section made a constituency structure using the Bottom-Up Parser method, and converted into functional structure. Further, the significance processing was carried out utilizing the conception system and the relations. Ninety-seven correct sentences were made out of 100 sentences. 17 refs., 10 figs.

  5. Relative amplitude preservation processing utilizing surface consistent amplitude correction. Part 3; Surface consistent amplitude correction wo mochiita sotai shinpuku hozon shori. 3

    Energy Technology Data Exchange (ETDEWEB)

    Saeki, T. [Japan National Oil Corporation, Tokyo (Japan). Technology Research Center

    1996-10-01

    For the seismic reflection method conducted on the ground surface, generator and geophone are set on the surface. The observed waveforms are affected by the ground surface and surface layer. Therefore, it is required for discussing physical properties of the deep underground to remove the influence of surface layer, preliminarily. For the surface consistent amplitude correction, properties of the generator and geophone were removed by assuming that the observed waveforms can be expressed by equations of convolution. This is a correction method to obtain records without affected by the surface conditions. In response to analysis and correction of waveforms, wavelet conversion was examined. Using the amplitude patterns after correction, the significant signal region, noise dominant region, and surface wave dominant region would be separated each other. Since the amplitude values after correction of values in the significant signal region have only small variation, a representative value can be given. This can be used for analyzing the surface consistent amplitude correction. Efficiency of the process can be enhanced by considering the change of frequency. 3 refs., 5 figs.

  6. Antibacterial characteristics of heated zinc oxide powders on Escherichia coli and Staphylococcus aureus; Kanetsu shori sareta sanka aen funmatsu no daichokin oyobi oshoku budoukyukin ni taisuru kokin tokusei

    Energy Technology Data Exchange (ETDEWEB)

    Sawai, J.; Yamamoto, O.; Hotta, M.; Kojima, H.; Sasamoto, T. [Kanagawa Inst. of Tech., Kanagawa (Japan)

    1998-09-10

    Influence of heat treatment temperature of zinc oxide (ZnO) powders on antibacterial property against Escherichia coli and Staphylococcus aureus was studied. The values of the minimal inhibitory concentrations (MIC) were determined by the electric conductance method to examine the antibacterial property. MIC is defined as concentration at lowest temperature where no changes of the conductance are detected. MIC of ZnO powders increases with an increase in heating temperature. The variation of MIC against E. coli is larger than that against Staph. aureus. Concentration dependence of antibacterial effect by hydrogen peroxide is larger against E. coli than that against Staph. aureus and agrees to the variation tendency of MIC with ZnO powders. The difference in the sensitivity against E. coli and Staph. aureus is suggested to be due to the action of hydrogen peroxide generated from ZnO powders. 8 refs., 3 figs., 1 tab.

  7. Visual feedback navigation for cable tracking by autonomous underwater vehicles; Jiritsugata kaichu robot no gazo shori ni motozuku cable jido tsuiju

    Energy Technology Data Exchange (ETDEWEB)

    Takai, M.; Ura, T. [The University of Tokyo, Tokyo (Japan). Institute of Industrial Science; Balasuriya, B.; Lam, W. [The University of Tokyo, Tokyo (Japan); Kuroda, Y. [Meiji Univ., Tokyo (Japan)

    1997-08-01

    A vision processing unit was introduced into autonomous underwater vehicles (AUV) to judge the visual situation and to construct an environmental observation platform that can collect wide-range and high-precision measurement data. The cable optionally installed at the bottom of the sea was recognized by vision processing to propose automatic tracking technique. An estimator that compensates for the hough conversion or time delay and a PSA controller that is used as a target value set mechanism or lower-level controller were introduced as the factor technology required for automatic tracking. The feature of the automatic tracking is that a general-purpose platform which can observe the prescribed range environmentally in high precision and density can be constructed because the observation range required by the observer can be prescribed near the sea-bottom surface using a cable. The verification result off Omi Hachiman at Lake Biwa showed that AUV can be used for the high-precision environmental survey in the range prescribed near the sea-bottom surface using a cable. 8 refs., 8 figs., 1 tab.

  8. Reduction of nitrogen in the excretion on Japanese flounder using Ulva and Capitellid; Anaaosa to itogokai ni yoru hirame haisetsubutsuchu no chisso shori

    Energy Technology Data Exchange (ETDEWEB)

    Honda, H.; Kikuchi, K.; Sakaguchi, I. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1997-03-01

    To develop the culture residue treatment technique using aquatic organisms, the ammonia and nitrate uptake rates of seaweed Ulva and the nitrogen reduction rate of polychaeta annelid Captella sp. with organic sediment predaceous ability were examined in the excretion of Japanese flounder. Nitrogen uptake rate of Ulva was affected by water temperature. It was highest at 20degC, followed at 15degC and 25degC in the order. It was not affected by light intensity between 1500 and 6000 lux. Ammonia and nitrate uptake rates by Ulva were estimated to be 28.2 and 14.6 {mu}g-N/g/h at 20degC under 3000 lux, respectively. Proportion of feces excreted from Capitellid to ingested sediments was 0.38. At 25degC, Capitellid population of one thousand individuals ingested-N at the rate of 24 mg-N/day, and excreted the feces-N of Capitellid at the rate of 7 mg-N/day. About 70% of nitrogen in the sediment was reduced through this process. 15 refs., 9 figs., 13 tabs.

  9. Effects of mechanical stimulating treatment on self-organization phenomena of materials; Kikaiteki reiki shori. Zairyo no jiko soshikia gensho ni oyobosu sono koka

    Energy Technology Data Exchange (ETDEWEB)

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

    1999-03-31

    The atoms and atom clusters around dislocation cores in crystals or surface layer deformed by mechanical energy are locally excited so as to give rise some chemical reactions and to self-organize their products into a kind of Spatial-Temporal Pattern Formation as a dissipative structure. A famous coupling phenomenon between mechanical and chemical process in solid materials must have been mechanical alloing. This report explains that various mechano-chemical treatments are powerfull method for entraining the solid system into non-equilibrium states and interesting phenomena stimulated by the mechanical self-catalysis reaction causing self-organization. (author)

  10. Explosive treatment of Illinois No.6 coal with a mixed solvent of water and cyclohexanol; Mizu-cyclohexanol kongo yozai ni yoru Illinois tan no bakusai shori

    Energy Technology Data Exchange (ETDEWEB)

    Hashimoto, T.; Takada, H.; Asami, K.; Yano, M. [Osaka City University, Osaka (Japan). Faculty of Engineering

    1996-10-28

    Coal was treated at high temperature under high pressure in the binary system mixed solvent of water and organic solvent, and the solvent treated coal was liquefied. When the treated coal was treated again by the explosive method in which high temperature and pressure were released immediately, the oil yield was higher than that by the normal method in which high temperature and pressure were reduced gradually to room temperature and atmospheric pressure. In this study, an explosive treatment unit with increased scale of sample amount was newly fabricated. Illinois No.6 coal was treated by the explosive method in a mixed solvent of water and cyclohexanol using this unit. Changes in shape on the surface, specific surface area, and functional groups were analyzed. The explosively treated coal contained more amount of low boiling point components than the normally treated coal. It was suggested that the oil yield of explosively treated coal increased due to the liquefaction of these components during the successive hydrogenation process. For the explosively treated coal, micro pores were fractured by the rapid change in the volume of solvent molecules, and the specific surface area was smaller than that of the normally treated coal. When the treatment temperature was increased from 300{degree}C to 350{degree}C, specific surface areas of both the treated coals increased. 2 refs., 3 figs., 2 tabs.

  11. Tallinna ajalugu Rootsi aja teisel poolel / Otto Liiv ; koost. Tatjana Shor

    Index Scriptorium Estoniae

    Liiv, Otto, 1905-1942

    1996-01-01

    Tallinna halduslikust korraldusest. Sisepoliitiline areng ja välispilt, majanduslik olukord Karl X ja Karl XII valitsemise ajal, usu-, haridus- ja kombeelu, eestlus Tallinnas hilisel Rootsi ajal ning Tallinna vallutamine Põhjasõja ajal venelaste poolt. Lisaks ka Otto Liivi bibliograafia lk. 63-78, koost. Shori, Tatjana

  12. Survey report of FY 1997 on the trends of novel CO2 fixation technology using bacteria and microalgae; 1997 nendo chosa hokokusho (saikin sorui wo riyoshita atarashii nisanka tanso kotei gijutsu no doko chosa)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    For this survey, the latest technology trends relating to microbial functions are summarized to recover and effectively utilize CO2, typical greenhouse effect gas, using microbial functions. Systematic survey and analysis are conducted concerning the microorganisms useful for fixing CO2, CO2 uptake mechanism during the microbial reactions, utilization methods of solar light and useful energy sources except solar light, highly efficient production of useful materials, and usage of produced useful materials. Research has concentrated on use of biological activities for this purpose through design of bioreactors using microorganisms (bacteria and microalgae) for efficient CO2 fixation. For the process to have net CO2 fixation as assessed by its life cycle and to make the process economically feasible, it is essential not only to fix CO2 merely in the form of biomass but in addition to convert it to useful materials by the catalytic activities of the organisms. Three categories were set for the survey, i.e., microorganisms with CO2 fixation ability, available energy for CO2 fixation, and target CO2 fixation products. 169 refs., 49 figs., 14 tabs.

  13. Special issue on frontiers of chemistry related to electrical and electronic engineering. Part 4.; Artificial photosynthesis and photoelectrochemistry; Denki/denshi kogaku ga hiraku atarashii kagaku no sekai. 4.; Jinko hikari gosei to hikari denki kagaku

    Energy Technology Data Exchange (ETDEWEB)

    Matsuo, T. [Kyushu Univ., Fukuoka (Japan). Faculty of Engineering

    1993-09-20

    Since light can be transformed into electricity, electrolysis of water using light is possible naturally, and photosynthesis in the nature is based on this principle. The reaction field in which electrochemical energy necessary for decomposition of water is generated using light at the first process of photosynthesis is a biofilm less than 10nm thick which is called thylakoid film. In this article, the effects are roughly explained which have been made for constructing an artificial system corresponding to the thylakoid film. Accumulation of knowledge of the molecular level is necessary for the construction of the artificial system and the three dimensional structure concerning the reaction center of photosynthetic bacteria has been determined. At the reaction center, oxidation species of electron donor and reduction species of electron acceptor are generated by charge separation which succeeds electron excitation by light energy. In order to lead the above process to materialistic production, efforts are being made for construction of a reaction center model compound for artificial photosynthesis from both physical chemistry and organic chemistry and the positive results have steadily been obtained in the development of photocatalysis of a semiconductor. 9 figs.

  14. Transformation hardening by linear-polarized laser beam. Report 2. Development of novel laser beam shaping optics and its applications to materials processing; Chokusen henko reza wo mochiiru hentai koka. 2. Atarashii reza shaping kogakukei no kaihatsu to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Miyamoto, I.; Maruo, H. [Osaka Univ., Osaka (Japan)

    1994-08-05

    Shape variable laser beam shaping optics for which linear polarized beam is utilized is applied to the hardening of carbon steel by CO2 laser beam to analyze the absorptivity. In addition, linear polarized beam is irradiated to inclined materials for laser hardening to analyze the depth of hardening and the distribution of temperature. The absorptivity of random polarized beam by the bare specimens is as low as 20%. It is as high as above 40% with the graphite coated specimen, but is nearly constant with no dependence on the angle of incidence. The absorptivity in p-polarization increases with the increase in the angle of incidence. When linear polarized beam is used, the total efficiency of the bare specimen becomes high by about 1.5 times that of the graphite coated specimen subjected to random polarized beam. Hardening of bear material by laser beam is quite possible when p-polarization is employed. An approximation equation is derived with which the temperature distribution and hardened depth can be obtained easily if beam distribution and absorptivity are given, and it is applied to the evaluation of laser hardening of inclined specimens using linear polarized beam. 22 refs., 11 figs., 1 tab.

  15. Application of new analytical techniques to the order-disorder transformation in Ni-Mo alloys; Ni-Mo gokin no kisoku-fukisoku hentai ni okeru atarashii kozo kaiseki no kokoromi

    Energy Technology Data Exchange (ETDEWEB)

    Oki, K.; Hata, S.; Kuwano, N. [Kyushu University, Fukuoka (Japan)

    1997-09-20

    This paper presents the analytical example of the ordering process of order-disorder transformation in Ni-Mo alloy using recent experimental techniques. Monte Carlo simulation clarified the fact that the ordering process in Ni4-Mo alloy is largely affected by short range interaction in the early stage of ordering, and forms D1a, D022 and Pt2Mo structure units with a similar atomic pair correlation. The ordering process is largely affected by long range interaction with an advance of ordering, and develops only D1a structure most stable in energy. In order to check the existence of SRO (short range order) structure obtained by Monte Carlo simulation, the analysis of high-resolution TEM images under SRO condition was carried out using the imaging plate recently developed for TEM. The analytical result showed that the observed N2M3 pattern is derived from not always the existence of N2M3 structure but superimposition of D1a, D022 and Pt2Mo structure units. 19 refs., 4 figs.

  16. Survey report for fiscal 1998. Survey of trends of new CO{sub 2} fixation technology using bacteria and algae (II); 1998 nendo chosa hokokusho. Saikin sorui wo riyoshita atarashii nisanka tanso kotei gijutsu no doko chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The trend of technology is surveyed from a standpoint that, in the process of CO2 fixation using microbes for the production of useful substances, it is essential, in view of income/outgo balance and economy, to utilize their catalytic function. The survey centers about the feasibility of the utilization of organic wastes, cellulose wastes in particular, as an energy source. Special attention is paid to the energy of artificial light and laser beams. From a point of view that it is important to suppress cell multiplication and to effectively utilize only catalytic activity for the production of useful substances, the cell division mechanism of the Corynebacterium is analyzed, and the findings are compiled to facilitate the study as to whether the division may be controlled. A report is also prepared on the metabolic mechanism of a photosynthesizing bacterium that is judged to be the most promising species. Reference is made to aerobic and anaerobic bacteria. Shown are the organic compounds that are formed by CO2 gas fixation thanks to microbial or enzymatic reactions. To emphasize their importance as an energy source and to explain the conversion of biomass into useful substances, the technology and economy of conversion into fuel compounds are surveyed. The production of ethanol out of organic wastes is evaluated in the way of LCA (life cycle assessment). (NEDO)

  17. Proposal of new wood processing industry system. Part 2. ; Project to develop compound system for high grade utilization of wood. Atarashii mokuzai kako kogyo system no teian. 2. ; Mokuzai kodo riyo fukugoka system kaihatsu jigyo yori

    Energy Technology Data Exchange (ETDEWEB)

    1991-10-01

    Already acknowledged to be important with a nationwide commonness, the wood drying is judged to be effective as a method for preventing the product from causing trouble and heightening its value. Such being the background, the present report introduces an automated water content control system, developed through testing a continuous type automatic water content measurement plant, high in usability for the general purpose as a water content checking mechanism for the dried wooden material. The sawed and screened lumber is conveyed to the machining, storage/curing/redrying or other treatment process as judged by the personnel in charge. Giving heed to the standardization of wooden material for the housing, application of FA into the work process and further rationalization in the construction process of wooden house, the Forestry and Forest Product Research Institute proceeds with research to aim at developing a wooden house construction method to take the local characteristics into consideration against the snowfall and extreme coldness in Hokkaido. An Obihiro City-based cooperative research group, having been proceeding with R and D on/of the improvement in work process with the above Institute, individually develops an FA material production control system, freely using a CAD/CAM system, for the housing members. 9 figs.

  18. Tensile properties and cyto-toxicity of new biomedical {beta}-type titanium alloys; Atarashii seitaiyo {beta}gata chitan gokin no sekkei to sono kikaiteki tokusei oyobi saibo dokusei

    Energy Technology Data Exchange (ETDEWEB)

    Kuroda, D.; Niinomi, M. [Toyohashi University of Technology, Aichi (Japan); Fukui, H. [Aichi Gakuin University, Aichi (Japan). School of Dentistry; Morinaga, M. [Nagoya University, Nagoya (Japan); Suzuki, A. [Daido Steel Co. Ltd., Nagoya (Japan)

    2000-09-01

    Co-Cr alloy, SUS 316L stainless steel, pure Ti and Ti-6Al-4V ELI have been used as implant materials. Ti-6Al-4V ELI has been most widely used as an implant material to date because of its excellent combination of biocompatibility, corrosion resistance and mechanical properties. Since toxicity of V etc., and high moduli of elasticity have been pointed out, {beta}-type biomedical titanium alloys are recently getting much attentions, New {beta}-type biomedical titanium alloys composed of non-toxic elements such as Nb, Ta, Mo, Zr and Sn with lower moduli of elasticity and greater strength were, therefore, designed using alloy design method based on the d-electron theory in this study. Tensile test, measurement of modulus of elasticity and evaluation of biocompatibility were conducted in order to investigate the mechanical properties and biocompatibility of the designed alloy. Tensile strength and elongation of Ti-29Nb-13Ta-4.6Zr are, in particular, equivalent to those of conventional biomedical titanium alloy such as Ti-6Al-4V ELI, and modulus of elasticity of Ti-29Nb-13Ta-4.6Zr is lower than that of Ti-6Al-4V ELI. The moduli of elasticity of the designed alloys are equivalent or lower comparing with those of conventional biomedical titanium alloys such as Ti-6Al-4V ELI and Ti-13Nb--13Zr. The biocomparibility of Ti-29Nb-13Ta-4.6Zr is equivalent to pure-Ti, and biocompatibility of Ti-29Nb-13Ta-4.6Zr is much greater than that of Ti-6Al-4V. The new {beta}-type titanium alloy, Ti-Nb-Ta-Zr, designed in this study is expected to have greater performance for implant materials. (author)

  19. Shvedõ trebujut prekratit voinu v Irake

    Index Scriptorium Estoniae

    2004-01-01

    Rootsi tuntud diplomaat Pierre Shori leiab Dagens Nyheter'is ilmunud artiklis, et Rootsi ametlik seisukoht ei nõua verevalamise peatamist Iraagis. Iraagi sõda kritiseeritakse ka Ameerikas, Harvardi professor Stanley Hoffman teeb ettepaneku tuua USA väed Iraagist välja 2005. aasta suveks. Spetsialistide hinnangul on USA majandus kaotanud Iraagi sõja tõttu 270 mld dollarit

  20. Fiscal 1998 report on data processing for geothermal energy development enhancement. No. A-4 Mount Kumbetsu area (primary data processing); 1998 nendo chinetsu kaihatsu sokushin chosa data shori hokokusho. No.A-4. Kunbetsu chiiki (dai 1 ji)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-09-01

    This is part of the state-operated 'geothermal energy development enhancement' project, under which a comprehensive analysis is conducted into the results of a survey of geothermal resources in existence in the Mount Kumbetsu area. The local geothermal structure is examined, and the Kumbetsu hot spring area, the Uebetsu river middle reach area, and the Unabetsu hot spring area are extracted as promising high-temperature supply areas. The Kumbetsu hot spring area and the Uebetsu river middle reach area lie on a heave positioned west of the Mount Musa/Mount Shitabanupuri fault. There is a distinguished bending in the zone of discontinuous resistivity, and, when geology is considered, it is inferred that there exists a geothermal fluid field formed by the Mount Musa/Mount Shitabanupuri fault running NNW-SSW and a fracture zone that runs across the fault. The two areas are located at spots where gravity gradient is sharp. It is concluded that, with the alteration zone, temperature distribution, etc., also taken into account, the Kumbetsu hot spring area is the more promising as a source of geothermal energy. The water of the Kumbetsu hot spring is of the Cl-SO{sub 4} type, 64.5 degrees C hot and neutral, and arises from the depth where water of meteoric origin is heated by heat conduction. The heat source is supposedly the magma reservoir whose eruption once formed Mount Unabetsu etc. (NEDO)

  1. FY 1999 report on the data processing of the geothermal development promotion survey. No. B-6 Tsujinodake area (Tertiary); 1999 nendo chinetsu kaihatsu sokushin chosa data shori hokokusho. No.B-6 Tsujinodake chiiki (dai 3 ji)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-01-01

    For the purpose of confirming the existence of geothermal reservoirs, this survey was conducted as Survey B in the range of 30km{sup 2} east of Lake Ikeda at the south east end of Satsuma Peninsula, Kagoshima pref. from FY 1997 to FY 1999. By the geology/alteration zone survey, fluid geochemical survey, electromagnetic survey and gravity survey which were conducted in FY 1997 as surface survey, the following three were extracted as the areas which have great potentiality of geothermal resource existence: 1) area along the Yamakawa-Matsugakubo structure line on which calderas and explosion craters lie (north part); 2) area along the Takeyama-Tsujinodake structure line on which Ata central dome volcanic rocks lie (central part); 3) area around Kozukahama where the south wall of the Ata caldera extends in east-west direction (south part). In the survey after that, in north part, it was considered that aquicludes in clayey alteration zone were widely distributed around levels of 100m above - 200m below sea level and there existed geothermal reservoirs under the aquicludes. It was presumed that the mixed water of sea water and surface water was thermally conducted by heat sources of 300-490 degrees C and geothermal reservoirs of 260-270 degrees C were formed. (NEDO)

  2. Study of reaction and heat release from solid combustion in strong magnetic field; Kyojiba wo riyoshita hikinshitsu kotai nensho shori no hanno to netsu no seigy ni kansuru kiso kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Ito, K.; Fujita, O.; Iiya, M.; Kudo, K. [Hokkaido University, Sapporo (Japan)

    1997-02-01

    To establish the inhomogeneous solid combustion control technology, effects of the strong magnetic field on the solid combustion were examined. When applying the sufficiently strong magnetic field, it is possible to control the air flow in combustion field by utilizing the force applying to constituent oxygen with large susceptibility. Based on this possibility, combustion experiments of expanded polystyrene plates were conducted between the magnetic poles of electro-magnet having the maximum flux density of 1 T and the maximum magnetic field gradient of 0.5 T/cm. To observe the effects of magnetic field without the effects of natural convection, combustion experiments of acrylic sheets were conducted between the magnetic poles of electro-magnet having the maximum flux density of 0.6 T and the magnetic field gradient of about 0.1 T/cm under the microgravity conditions between 10{sup -4} and 10{sup -5}g using a microgravity test facility. Consequently, prospective combustion results could be obtained, in which the force of flame received from the magnetic field is almost equivalent to the buoyancy of flame. It was demonstrated that combustion can be controlled by the magnetic field. 1 ref., 3 figs., 1 tab.

  3. Geothermal development promotion survey. No.B-4 'Kuenohira-yama area'; 1997 nendo chinetsu kaihatsu sokushin chosa data shori hokokusho. No.B-4 Kuenohira-yama chiiki

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-01-01

    The above-named survey had been scheduled to be conducted in fiscal years 1996-1998 for an approximately 10km{sup 2}-large area of Kokonoe-cho, Kusu-gun, Oita Prefecture. In fiscal 1996, surface surveys were conducted, such as geological and alteration zone surveys, gravity prospecting, and electromagnetic survey. In fiscal 1997, an exploration well (N9-KH-1: depth 2,222.0m) was drilled. Since the maximum temperature in the well was found to be so low as 78.5 degrees C, the survey was given up in the second year. The survey conducted at N9-KH-1 showed that deep-seated and shallow-seated ruptures developed there in the absence of aquicludes, and so it was inferred that it was a recharge area, as predicted by the temperature logging profile, with surface water flowing into the depth. The above showed that there was no deep-seated blind geothermal system which the survey was after. Since it was not likely that the shallow-seated geothermal system located in the southern part of the Mizuwake pass would be found expanding into the area of the current survey, it was decided that the survey not be carried forward to the following fiscal year. (NEDO)

  4. Adaptability of drowsiness level detection that measures blinks utilizing image processing to changes in the ambient light; Hikari kankyo no henka ni tekiosuru kao gazo shori ni yoru inemuri unten kenchi

    Energy Technology Data Exchange (ETDEWEB)

    Kaneda, M.; Obara, H.; Nasu, T. [Nissan Motor Co. Ltd, Tokyo (Japan)

    1997-10-01

    A drowsiness warning system that measures blinks utilizing image processing technology has a number of issues that need to be resolved. One issue is the adaptability of the system to changes in the ambient light environment in the actual vehicle interior. We have devised image processing software which is robust to changes in the ambient light. The drowsiness detection performance of the system was evaluated in laboratory tests and actual driving tests. It was found that the system can has a positive effect on detecting drowsiness level. 3 refs., 10 figs.

  5. Fiscal 1998 research report. Popularization project of the proper treatment technology of industrial wastes in Asian regions; 1998 nendo chosa hokokusho. Asia chiiki sangyo haikibutsu tekiseika shori gijutsu nado fukyu sokushin jigyo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Study was made on popularization of the proper treatment technology of industrial wastes in Asian regions. In principle, industrial wastes should be recycled in a country concerned, however, because of a difference in technology and industrial location, treatment of all industrial wastes in a country concerned is impossible. International cooperation is thus indispensable to promote proper efficient practical measures for environment. For studying the possibility of the international cooperation between Japan and Asian countries concerned for further recognition and solution of industrial waste problems, 'International Symposium on the Asian Industrial Waste Issue' have been held in Tokyo since 1997 for governmental staffs. In fiscal 1998, Malaysia was invited in addition to China, Philippines and Thailand for popularization of the proper treatment and recycling of industrial wastes in Asian regions. In every Asian countries, poor collection of discharge, treatment and disposal data is an obstacle to effective treatment. Technical cooperation and financial support by developed countries are demanded. (NEDO)

  6. Report on the research cooperation promoting project in fiscal 1998. Research cooperation related to the mine waste water treatment technology utilizing biomass; 1998 nendo kenkyu kyoryoku suishin jigyo hokokusho. Bio riyo ni yoru kohaisui shori gijutsu ni kansuru kyoryoku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This paper describes the achievement in relation with the mine waste water treatment technology utilizing biomass, from among the promotion projects for research cooperation with China. Waste water is converted into ferric iron (Fe{sup 3+}), which precipitates at low pH, by utilizing iron oxidizing bacteria which use ferrous iron (Fe{sup 2+}) in the waste water as the energy source, and is precipitated and removed by using low-cost calcium carbonate as a neutralizing agent. Fiscal 1998 has performed eight site surveys with 47 persons in total. The main survey items are the study and guidance of pilot plant operation and the survey on measures to prevent occurrence of contamination by heavy metals in Wushan Mine. Additional site surveys were made at Dexing Mine and Yinshan Lead/Zinc Mine. Continued from fiscal 1997, consumables required for the pilot plant were purchased, and items of the bench-scale testing equipment used by Japan for domestic researches (an oxidation and neutralization testing equipment and a copper recovering and testing equipment) were transported to China. The operation research data of the pilot plant were put in order and analyzed. This paper summarizes the concept design of the shaft waste water treatment facilities for the north mine in Wushan Mine, and the surveys on measures for heavy metal contamination sources. (NEDO)

  7. Report on research cooperation for bio-aided treatment of waste water from mining pits, conducted in FY1996. Data edition; 1996 nendo bio riyo ni yoru kohaisui shori gijutsu ni kansuru kenkyu kyoryoku hokokusho. Shiryohen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This report carries the results of (1) surveys on properties of waste water discharged from pits in Wushan Mine in Province of Jiangxi, China, (2) monitoring the environments around the mine, (3) monitoring the environments around the mine (photographs) and (4) surveys on properties of waste water discharged from pits in other mines, and also outlines (5) the Chinese research activities. More specifically, it carries (1) water analysis results of pH and heavy metals at -40mL and -160mL pits and raw water pit on the earth's surface, (2) analysis results of pH and heavy metals for water discharged from the mine at 15 points, 7 at the north of the mine, 4 at the south of the mine, 2 at the tailings, 1 at Chihu, and 1 at the eastern tailings, (4) the data regarding waste water discharged from pits in 5 mines in the same province, including copper, copper-sulfur and copper-zinc mines, and (5) results of the (bacteria-culturing tests for high-efficiency oxidation of iron) carried out in Wushan Mine. The tests comprised the nutrient addition, raw water load and residence time tests, and the results of each test are reported. Fe (II) is oxidized to 95 to 98% at a residence time of 0.75 hours. (NEDO)

  8. Engineering characteristics of the improved soil by deep mixing method using coal ash; Sekitanbai wo riyoshita FGC shinso kongo shori koho ni yoru kairyodo no kogakuteki seishitsu to kongo no tenbo ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Watanabe, T. [Center for Coal Utilization, Japan, Tokyo (Japan); Azuma, K.; Watanabe, M. [Electric Power Development Co. Ltd., Tokyo (Japan)

    1996-09-01

    Japan currently produces about six million tons of coal ash annually, whose effective bulk utilization to earth engineering materials is an important issue of technological development. A slurry may be made by mixing the following three kinds of materials: fly ash discharged from power plants exclusively burning dust coal (F), gypsum generated as a by-product in a stack gas desulfurizing process (G), and commercially available cement (C). The slurry would be called an FGC slurry taking the first letters of the materials. This paper presents the results of laboratory tests, in-situ execution tests and centrifuge model testing on engineering characteristics of soils improved by the FGC slurry when the slurry is applied to implementing the deep mixing method. As a result, a large number of findings were obtained including the following matters: the FGC deep mixing method makes it possible to improve ground beds having small deformation coefficient with the same accuracy as in the cement-based deep mixing (CDM) method at strengths lower than 5 kg/cm {sup 2} which is difficult with the CDM method, not to speak of strengths equivalent to that is possible with the normal CDM method; and development of a ground bed with improved strength is possible without being governed by quality and kinds of the fly ash. 1 ref., 23 figs., 5 tabs.

  9. Biological treatment with mass balance analysis for two types of groundwaters contaminated by petroleum hydrocarbons and tetrachloroethylene; Sekiyukei tanka suiso oyobi tetrachloroethylene osen chikasui no seibutsu shori ni okeru busshitsu shushi

    Energy Technology Data Exchange (ETDEWEB)

    Kogure, K. [National Defense Academy, Kanagawa (Japan); Kuraishi, J.; Tsuchiya, Y. [Nishihara Environmental Sanitation Research Corp., Ltd., Tokyo (Japan)

    1997-07-01

    A depollution experiment with microbial decomposition was carried out on simulated groundwaters contaminated by a jet fuel (JP-4) composed of petroleum hydrocarbons as the main constituent and tetrachloroethylene (PCE). An aerobic batch reactor (SBR) was used for a purification experiment on the JP-4 contaminated groundwater. An anaerobic batch reactor (AnSBR) connected with the SBR in series was used for a purification experiment on the PCE contaminated groundwater. For microbe sources, the Formulation L-104 and sludge in a sludge digestion tank were used. The following conclusions were obtained as the result of the experiment: 98-99% of the total petroleum hydrocarbons existing in the simulated JP-4 contaminated water is decomposed by the biological treatment, and 0.06-1.3% thereof is discharged in the treated water; and in the depollution experiment on the PCE using the AnSBR reactor connected with the SBR in series, a PCE removal rate of 99.2% was obtained in a PEC load with 35.1{mu}mol per cycle in average. 6 refs., 8 figs., 3 tabs.

  10. 3D seismic survey in Honjo, Akita. Problems and struggles in acquisition and processing; Akitaken Honjo koku ni okeru sanjigen jishin tansa. Genba sagyo to data shori ni okeru mondaiten

    Energy Technology Data Exchange (ETDEWEB)

    Imahori, S.; Kotera, Y.; Nakanishi, T. [Japan Energy Development Co. Ltd., Tokyo (Japan)

    1997-05-27

    Honjo mining area where investigations are conducted is hilly and has a complicated terrain with gas pipes buried in the ground just under the access road disabling the proper positioning of shock-generating large excavators or vibrators. Auger`s shallow hole shooting method is used in this survey to execute blastings at 639 points. In this method using charge depths of 4m, different from the conventional method using deeper charge depths (20-25m), surface waves prevail in the shot records giving rise to a new problem of removing them in the stage of data processing. The 2D filter that is a powerful tool in 2D data processing is not available in a 3D-survey where the tracing intervals are irregular in the shot records. In the effort of this time, a window length as a parameter in the direction of time is specified, and the F-X dip filtering method is employed in which any event that linearly continues beyond a certain number of traces in the said window is eliminated as a linear noise. It is recommended that the weighting function be changed in the direction of space since surface wave velocities are different at different locations. 1 fig., 1 tab.

  11. Fiscal 1999 geothermal development promotion survey report. Data processing (No. B-5 - Musadake region - Phase 3); 1999 nendo chinetsu kaihatsu sokushin chosa data shori hokokusho. No. B-5 Musadake chiiki (Dai 3 ji)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-01-01

    A comprehensive analysis was conducted into the results of a survey on the state of existence of geothermal energy resources in the Musadake region, Shibetsu-gun, Hokkaido. The region was volcanically active in the period from the Neogene period into the quaternary, with some volcanos still active even today. The geological structure on the whole is characterized by the Musadake/Mt. Shitabanupuri fault which is the major structure running NNE-SSW and having a folding structure. It is inferred that Musadake is the heat source responsible for the underground temperature distribution in this region. The maximum temperature of 274 degrees C is recorded at borehole N11-MD-3 in the northeastern part of Musadake, and the temperature falls rapidly as the distance from the borehole increases. Ejection of geothermal fluids is observed at boreholes N11-MD-3 and N11-MD-4. It is inferred that the deep-seated geothermal water is of the neutral Cl type with Cl concentration estimated at approximately 12,000 mg/liter. Steam composition is characterized by a gas concentration level that is as high as 3-4 vol.%. The gas is composedly mainly of CO2 and contains some hydrocarbons. Fluids in this region are classified into water mixing into deep-seated geothermal water and groundwater originating in meteoric water. (NEDO)

  12. Report on achievements in fiscal 1998. Development of an interim processing technology to re-commercialize mixed waste plastics; 1998 nendo kongo haipura saishohinka no tame no chukan shori system gijutsu no kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-09-01

    The container and package recycling law is fully enforced starting fiscal 2000. Recycling obligation is placed also on plastic containers and packages discharged from households, excepting PET bottles for beverages and soy sauce. Therefore, it is required to establish an interim processing technology to process these materials into shapes easy for re-utilization and transportation, that is a technology to manufacture granules with adequate diameters. The purpose of this research is to develop the interim processing system technology. Design, fabrication and installation were performed on an interim processing system plant (a mixed waste plastic granule manufacturing facility) that can process annually waste plastics of 3,000 tons (0.5 t/h). The plant consists of the following four pieces of equipment: (1) a pulverizer, (2) a PVC sorting device, (3) a granulating device, and (4) a sizer. After the installed interim processing system demonstration plant has been trially operated and adjusted by each device, the whole plant was given the trial operation and adjustment to have verified that all the devices function normally. In addition, in order to evaluate economy of the waste plastics interim processing, the processing cost was calculated and the economic performance was evaluated preliminarily by using the rated electric power setting and trial operation data of each device. (NEDO)

  13. Research cooperation project in fiscal 1998. General report on research cooperation related to mine waste water treatment technology by utilizing biotechnology; 1998 nendo kenkyu kyoryoku jigyo. Bio riyo ni yoru kohaisui shori gijutsu ni kansuru kenkyu kyoryoku sokatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This paper describes cooperative development of bio-treatment technology for mine waste water generated by operating mines in China. Certain types of bacteria have capability to oxidize ferrous iron in the waste water into ferric iron ions. The bacteria cause ferric iron oxides in low pH regions to get deposited, and can remove them from sedimentation by using cheap calcium carbonate as a neutralizer. Volumetric reduction in waste sediments may also be achieved during removing heavy metals in a pretreatment process. Great advance may be expected in taking actions to prevent water quality contamination. This paper summarizes activities taken in fiscal 1998. Eight site surveys in total were carried out using 47 persons in total. Major activities included operation study guidance of a pilot plant, and surveys for measures on heavy metal generation sources in Wushan Mine. In addition, site surveys were performed at Dexing Mine and Yinshan Zinc Mine. Subsequently from fiscal 1997, a bench scale testing equipment used in Japan and consumables were transported to China. The operation study data on the pilot plant were put into order and analyzed. Concept design was also made on a waste water treatment facility for Wushan Mine. (NEDO)

  14. Processing of the reflection seismic data which were acquired in the continental shelf off the north-west Australia; Australia hokusei tairikudana chiiki ni oite shutokusareta hanshaho chishitsu tansa data no shori ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Amano, H. [Japan National Oil Corp., Tokyo (Japan)

    1996-05-01

    Reflection exploration of earthquakes was conducted in the continental shelf off the north-west Australia, and a report is made concerning the processing of the acquired data. A GI gun was used as the vibration source, and a wave quite similar to a pulse was generated. Hydrophones were arranged with group intervals of 12.5m, and high-resolution field data were acquired. An analog low cut filter was used to suppress the large-amplitude swell noise attributable to sea conditions. A digital filter was designed for the purpose of eliminating coherent noises from other survey ships. At the ultimate stage the f-k filter was applied to each of the shot records, and the effectiveness was verified. The traverse line was as long as 6700km and therefore the design window was set relatively long at 2.0-4.0s in the residual static correction phase. It was found that this setup is effective in improving the continuity of the reflection surface. 5 figs., 1 tab.

  15. Development and field example of multi channel surface wave data acquisition and processing system (SWS-1); Multi channel hyomenha data shutoku shori system (SWS-1) no kaihatsu to jikkenrei

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Y. [Huashui Institute of Geophysical Exploration, (China); Wang, Z. [Bureauof Engineering MGMR, (China); Zhang, Z [STG Corp., (China); Tanaka, Y.

    1996-05-01

    A report is given here about the use of a newly-developed multi-channel surface wave data acquisition and processing system different from the conventional surface wave exploration device. This system enables the on-site pickup of a dispersion curve out of the multi-component surface wave data and, in the analysis of underground structure, performs the forward modeling and inversion. The system, furthermore, acquires and analyzes the data obtained from reflection earthquake exploration and constant microtremor observation. During a survey conducted along the highway from Port Ren-un to Xuzhou, China, estimation of the basement boundary was made by use of dynamite, and what was obtained agreed with the result of boring though with an error of 3m. In addition, this system could probe levels deeper than 100m using the instantaneous Rayleigh wave exploration method. This system and the conventional surface exploration device were compared in a soft ground in Fukui Prefecture, the former using a 10kg hammer and the latter using a 350kg exciter, when it was verified that the results produced by both techniques excellently agree with the geologic columnar section and changes in the N-value. 4 refs., 4 figs.

  16. Improvement of a manageability of biological nitrogen and phosphorus removal plant using a wastewater treatment process simulator; Gesui shori purosesu shimyureta no riyo ni yoru seibutsuteki chisso/rin jokyo puranto no kanrisei no kojo

    Energy Technology Data Exchange (ETDEWEB)

    Kurata, G. [Toyohashi Univ. of Technology, Aichi (Japan). Faculty of Engineering; Tsumura, K. [Kyoto Univ., Kyoto (Japan). Graduate School; Yamamoto, Y. [Osaka Prefectural Inst. of Public Health, Osaka (Japan)

    1997-02-10

    In this paper, a method for executing a stable management of wastewater treatment process is examined by using a wastewater treatment process simulator with the facilities adopting intermittently aerated 2-tank activated sludge process as the object. The following results are obtained from said examination. Based on a fact that the treatment efficiency is influenced greatly by the comparatively miner parts of the process in biological nitrogen and phosphorus removal, a wastewater treatment process simulator, by which the intrinsic process flow, restricting conditions and behaviors of controlling system of each facility can be dealt with, is developed by using object-directional model. As the results of this development, not only the effects approximate to those of actual process can be obtained, but also the trial error and alternation of process flow can be realized in a short time. The serious influence of disappearance of dissolvable organic substance in flow-adjusting tank upon the deterioration of biological phosphorus removal is clarified by the results of the simulation based on the investigation of flowing-in water quality. 12 refs., 13 figs., 4 tabs.

  17. Joint Research. Report on the results of developing commercialization of a technology of process wastes and re-utilize them by using petroleum substituting energy; Kyodo kenkyu. Sekiyu daitai energy riyo haikibutsu shori saishigenka gijutsu jitsuyoka kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    A study was conducted on a technology to melt shredder dust and non-combustible wastes directly by using coal, reduce their volume and re-utilize them. The elementary study on a high-temperature melting and treating technology set such targets as optimizing the melting and treating technology in correspondence with properties of materials to be treated, by using a small melting test plant, achieving a volume reduction rate of 1/200, and reducing treatment cost. In order to make innoxious the different kinds of environmental loading materials contained in exhaust gas from a high-temperature gasification and direct melting system, discussions were given on an optimum control condition for the exhaust gas system facilities. Furthermore, physical properties of discharges (slags nd metals) were investigated to discuss material re-utilization. In discussing optimal systems, three kinds of systems including two types utilizing fuels were proposed as high-temperature gasification and melting treatment process from a viewpoint of technology and cost. Respective systems were compared with each other on treatment cost, and their priorities were identified. 56 refs., 50 figs., 55 tabs.

  18. 1998 Annual Study Report. Standardization of corrosion resistance testing/evaluation methods for coated steel sheets; 1998 nendo seika hokokusho. Hyomen shori koban no taishokusei shiken hyoka hoho no hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In order to develop the evaluation methods for reappearing corrosion characteristics of coated steel sheets in a short time, acid rain composition and artificial acid rain composition for the accelerated test were studied, and the cyclic corrosion tests were conducted. The literature survey shows that the main ionic species present in acid rain are Ca{sup 2+}, Mg{sup 2+}, Na{sup +}, K{sup +}, NH{sub 4}{sup +}, SO{sub 4}{sup 2-}, NO{sub 3}{sup -}, and Cl{sup -}, of which the acid rain components are SO{sub 4}{sup 2-} and NO{sub 3}{sup -}, their equivalent ratio (NO{sub 3}{sup -}/ SO{sub 4}{sup 2-}) in the Far Eastern area being 0.2 to 0.3. Therefore, the solution specified by ASTM 1141 is diluted 30 times with water to prepare the base solution for the accelerated tests, where its acidity is adjusted with a mixed acid of NO{sub 3}{sup -}/ SO{sub 4}{sup 2-} = 0.2 to 0.3 (pH: 3.0 to 4.0). Two sets of preliminary cyclic corrosion tests were conducted, one involving acid rain spraying, drying and humidification in this order, and the other acid rain spraying, humidification and drying. Analysis of the test data indicates that difference between these test cycles in corrosion rate is within a deviation range caused by different testing tools. Therefore, the former condition is adopted as the basis for the accelerated tests, because of its smaller deviation caused by different testing tools. (NEDO)

  19. FY 2000 report on the survey of the freon recovery/treatment technology for construction use heat insulating materials; 2000 nendo chosa hokokusho. Kenchiku yo dannetsuzai furon kaishu shori gijutsu chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-03-01

    An investigational study was made of the quantity of the specified freon remaining in the construction use heat insulating material, the rational method for the recovery/treatment, etc. As to the standardization of the method to analyze the remaining freon quantity, the tube furnace - GC method and the MS method were proposed, and the basic items that can be developed to JIS (Japanese Industrial Standard) were standardized. In the estimation of the remaining freon quantity, the actual state of the use of heat insulating materials was surveyed from the statistics on the start of construction work, survey of the heat insulating area in actual buildings and listening to heat insulation workers/cold store construction companies, etc. Further, the remaining quantity was analyzed of samples collected from various buildings nationwide and by years of completion. As a result, it was found out that, even in samples before 1995, HCFC is used in about 10% and that, in case of limiting to the specified freon (CFC), the freon remaining quantity was more than 1-4 wt% even after a lapse of 30 years. The paper arranged subjects on the freon recovery/treatment in each stage of the life cycle and the required conditions for technology/equipment. (NEDO)

  20. GC/MS analysis of chlorinated organic compounds generated from the chlorination of fulvic acid solution; Furubosan yoeki no enso shori ni yotte seisei suru yuki enso kagobutsu no GC/MS bunseki

    Energy Technology Data Exchange (ETDEWEB)

    Matsubara, H. [Fukuoka City Inst. for Hygiene and Environment, Fukuoka (Japan). Environmental Chemisty Section; Urano, K. [Yokohama National Univ. (Japan)

    1997-12-10

    In this study, GC/MS analysis of the compounds generated in the chlorination of fulvic acid extracted and purified from treated sewage as humic substances originating from human activities is executed, then among the peaks of total ion chromatogram obtained therefrom, those considered as the chlorinated organic compounds are analyzed, and identification and estimation of the compounds are carried out. As a results, it is clarified that in addition to trihalomethane and chloroacetic acids, chloropropionic, chloromaleic, chlorofumaric acids and chlorinate organic compounds having ring structure are generated. Further, samples of chlorinated fulvic acid extracted and purified from rotted leaves as humic substances originating from nature are analyzed with GC/MS analysis. A results of the analysis is that the same compounds as those in the chlorination of fulvic acid in treated sewage are generated. However, peaks presumed as the chlorinated organic compounds having aromatic rings can not be confirmed. 6 refs., 7 figs.

  1. Fiscal 1993 investigational study of a model of international cooperation for an environmentally harmony type green technosystem; 1993 nendo Oshu ni okeru haikibutsu shori oyobi recycle no doko ni kansuru chosa kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    For the natural environment preservation, effective utilization of resources, and maintenance of the ecosystem, an international cooperation model was proposed for the environmental harmony type green technosystem. A comprehensive evaluating analysis of a green forest resource, etc. as the global resource, and an intensive extraction of subjects and needs was made. The analysis was conducted of technical possibility and abstract business development effects toward the industrialization with high values added which is in harmony with the environment. As a case study, the Papua New Guinea area, Malaysia was selected and re-evaluated. For this typical tropical forest area, a new technical system was studied based on the natural environment, industry/economy, social/cultural assessment, etc., and a model for industrializing new international cooperation was proposed. For the model making for industrialization, various steps to be taken and conditions to be prepared were studied and arranged for the realization. Upon going ahead with the international technical cooperation, Japan, a large lumber consuming country, needs to always consider the fostering and effective use of lumber resource in particular. 27 refs., 28 figs., 30 tabs.

  2. FY 1995 Report on the data processing for the geothermal development promotion investigation. No.B-3 Kumaishi Area (Phase 1); 1995 nendo chinetsu kaihatsu sokushin chosa data shori hokokusho. 1. No.B-3 Kumaishi chiiki

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-01-01

    Described herein are the FY 1995 results of the No.B-3 Kumaishi Area investigation, conducted as part of the geothermal development promotion investigation project. The project covers the geological structure, geochemical, gravitational, electromagnetic, environmental impact and supplementary investigations. The following findings are obtained by the comprehensive analysis of the data. The Kumaishi Area is based on the sedimentary rocks and granite formed in the Pre-Ternary, which are unconformably covered by the strata belonging to Upper Oligocene of Ternary to Lower Pleistocene of Quaternary. The presence of NW-SE to E-W to NE-SW systems is suggested as the main fracture systems. It is estimated by the K-Ar method that the intrusion was formed in the 2.06 to 2.28Ma. The geochemical temperature suggests the presence of the fluid of 200 degrees C or higher as the deep hot water temperature. The resistivity structure generally indicates the NW-SE direction. Each stratum is confirmed by the test drilling for the structural investigation. The fluid motion model suggests possibility of hot water of high salt content, similar to that confirmed deep in the Yagumo Area, distributed deep in the Kumaishi Area. (NEDO)

  3. Report on the project for spread/promotion of technology for the industrial waste optimized treatment in the Asian region (International Symposium `98); Asia chiiki sangyo haikibutsu tekiseika shori gijutsu nado fukyu sokushin jigyo (symposium kaisai) hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    In Japan and Asian countries, the optimized treatment of industrial waste is the problem with the economic growth. Border-crossing movement of the waste for promotion of the renewable use is also a problem. Therefore, the International Symposium `98 on the industrial waste problem in the Asian region was held. China, Thailand, the Philippines and Korea were invited to Japan to give lectures. MITI of Japan reported on the present situation of Japan and the cooperation with Asian countries. The industrial circle reported on efforts for environmental protection measures to be taken, the industrial waste problem at companies which advanced into Asian countries, effects of the Basel Convention on recycling activities, Japan`s role in Asia, etc. In the panel discussion, promotion of cooperation for recycling technology and Japan`s support for formulating strategy on the industrial waste were requested to Japan, and the construction of an Asian area network was proposed. Concerning the cooperative system between governments and private companies, it was concluded that it was necessary to discuss it considering the actual state of each country. Importance of recycle and information exchange was realized again. 10 refs., 15 figs., 27 tabs.

  4. Report on the project for spread/promotion of technology for the industrial waste optimized treatment in the Asian region; Asia chiiki sangyo haikibutsu tekiseika shori gijutsu nado fukyu sokushin jigyo hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The International Symposium `98 on the industrial waste problem in the Asian region was held in Tokyo on February 18, 1998. MITI commented on the present situation of the industrial waste problem in Japan and Japan`s environmental tackling toward the Asian region, and also Asian countries (China, the Philippines, Thailand and Korea) made reports. Japan reported on environmental preservation measures taken in the industrial circle, the industrial waste problem at companies which advanced into Asian countries, effects of the Basel Convention (which restricts border-crossing movement of harmful wastes) on recycle activities, Japan`s role in Asia, etc. In the panel discussion, discussions were made on human interchange in the informatization, recycling technology, shortage of personnel concerned with environmental protection, construction of a network in the Asian region and Japan` s role, etc. As to the treatment system for waste, the necessity was recognized of studying systems which meet with actual states of each country. It is also necessary to go on with discussing how the system should be for cooperation between governments and private companies. Importance of the recycle and information exchange was emphasized. 10 refs., 14 figs., 27 tabs.

  5. Attempts for development of new processing techniques and products by Nippon Arm aiming at creation and diversification. Development of new processing techniques and products by drawing machines aided by induction heating. Sozo to tayo wo mezasu Nippon Arm no 'atarashii kako gijutsu to shohin kaihatsu' eno torikumi. Yudo kanetsu shibori kakoki ni yoru kako gijutsu oyobi shinshohin no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Yamamoto, K.; Kurihara, T. (Kansai Electric Power Co. Inc., Osaka (Japan))

    1999-05-10

    Described herein are new processing techniques and products of good designs Nippon Arm has developed by introducing drawing machines aided by induction heating. The machine draws a rotating tube heated by high-frequency induction heating while pressing its outer surface by 3 rolls. It works under programmed conditions (e.g., heating temperature, speed of rotation, feed rate and drawing depth) to give an optional shape, without needing a mold. The basic modes of drawing include straight tube drawing, tapered drawing, R-drawing and convexo-concave drawing, and a combination thereof is also possible to form more complex shapes. The first product produced by the machine is N type arms for overhead cables, and has been followed by various products, e.g., illumination poles and garden illuminators of unique designs for common markets. (NEDO)

  6. Attempts for development of new processing techniques and products by Nippon Arm aiming at creation and diversification. Development of new processing techniques and products by drawing machines aided by induction heating; Sozo to tayo wo mezasu Nippon Arm no `atarashii kako gijutsu to shohin kaihatsu` eno torikumi. Yudo kanetsu shibori kakoki ni yoru kako gijutsu oyobi shinshohin no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Yamamoto, K.; Kurihara, T. [Kansai Electric Power Co. Inc., Osaka (Japan)

    1999-05-10

    Described herein are new processing techniques and products of good designs Nippon Arm has developed by introducing drawing machines aided by induction heating. The machine draws a rotating tube heated by high-frequency induction heating while pressing its outer surface by 3 rolls. It works under programmed conditions (e.g., heating temperature, speed of rotation, feed rate and drawing depth) to give an optional shape, without needing a mold. The basic modes of drawing include straight tube drawing, tapered drawing, R-drawing and convexo-concave drawing, and a combination thereof is also possible to form more complex shapes. The first product produced by the machine is N type arms for overhead cables, and has been followed by various products, e.g., illumination poles and garden illuminators of unique designs for common markets. (NEDO)

  7. Applying computers to construction planning and management. Proposal of Hi-CIC (Human Intercommunicated Computer Integrated Construction) concept; Seko keikaku / seko kanri eno computer riyo hoho ni kansuru kenkyu. Atarashii seisan keitai de aru Hi-CIC (haishikku) koso no teian

    Energy Technology Data Exchange (ETDEWEB)

    Ishii, I.; Masamura, Y.; Oyamoto, T. [Kajima Corp., Tokyo (Japan)

    1994-10-31

    Arranged reports of recent computer aided research and development in the field of building, they are divided substantially four types: all construction support, information integration, construction technique selection, and CAD/OA as the types of utilization. These types fall within a region of saving of business management and speeding-up of the same, and hence it is difficult to break through the limit in present framework. This paper investigates and proposes a new mechanism which can exceed the limits of productivity growth. For this, there is required a mechanism of production where it is planned and managed in a production unit greater than that of the present situation. The new mechanism which employs communication network/computer as a premise will herein be named as a Hi-CIC. The Hi-CIC is not a stratified organization and not centralized management where the scales of the units of building production are simply expanded, but is a global concept where an individual Hi-CIC center and a group of business Hi-CIC centers complements each other by the use of computers adhering to users. 2 refs., 4 figs., 4 tabs.

  8. Fiscal 1997 report on the results on the international standardization R and D. Development of chemical methods to analyze/evaluate metallic coatings of surface treated steel coating sheets; 1997 nendo seika hokokusho kokusai hyojun soseigata kenkyu kaihatsu. Hyomen shori koban mekkiso no kagaku bunseki hyoka hoho no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The paper studied the international standardization of the chemical analysis method and glow discharge optical emission spectrometry. Chemical composition and coating thickness (g/m{sup 2}) of 14 kinds of specimens including alloy coatings and organic coating with zinc and aluminum as base were analyzed by the above-mentioned methods to examine the relation between the both. As the chemical analysis method, used was inductively coupled plasma atomic emission spectrometry. To study the relation between the methods, it was found to be necessary to recognize morphology at the boundary between the coating and base steel using, for example, scanning electron microscope (SEM) and electro-probe micro-analysis (EPMA). To measure traceability of the analysis method, with the chemical analysis method as a judgement method, it is necessary to make reference materials by coating materials, to use the calibration graph confirmed by the materials and to adopt the glow discharge optical emission spectrometry. On the basis of such way of thinking, drafts were worked out for the international standardization of the chemical analysis method and glow discharge optical emission spectrometry. 7 refs., 117 figs., 33 tabs.

  9. Fiscal 2000 survey report on rationalization project for international energy conservation, technological dissemination project for international energy conservation, and Green Helmet Project. Japan-China alternative energy seminar/waste disposal; 2000 nendo kokusai energy shiyo gorika nado taisaku jigyo, kokusai energy shohi koritsuka nado gijutsu fukyu jigyo, green helmet jigyo chosa hokokusho. Nicchu sekiyu daitai energy seminar haikibutsu shori

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    This paper explains the Japan-China alternative energy seminar (February 28 and March 1, 2001, at Beijing). The purpose of the seminar is to introduce systematic and three-dimensional or land/sea/air measures for waste disposal including recycling in Japan, to provide guidance of measures in improving recognition and methods for waste disposal in China, and also to contribute to the dissemination and promotion of a model project for effectively utilizing waste heat from rubbish incineration, a project being implemented in Harbin City now. The activities of NEDO were introduced, with emphasis placed on a model program, called Green Aid Project, for managing heat from waste incineration. On the subjects of sustainable development, urban environment, and energy, the policy of China's tenth five-year plan was demonstrated, and the treatment of wastes in China was also explained. The present state of waste processing in Japan was introduced, as was its maintenance of the facilities. Concerning Japan's waste processing technologies and characteristics of the equipment, there were presented non-incineration processing including crushing/separating, RDF, compost, methane fermentation, etc.; incineration plants; and each of the technologies such as combustion, exhaust gas, ash treatment, use of remaining heat, and gasification melting. (NEDO)

  10. Research cooperation promoting project in fiscal 1998. Research cooperation related to developing mine resources extraction and treatment technologies of environment harmonizing and high efficiency type; 1998 nendo kenkyu kyoryoku suishin jigyo. Kankyo chowagata kokoritsu kobutsu shigen chushutsu shori gijutsu no kaihatsu ni kansuru kenkyu kyoryoku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In order to realize more effective utilization of non-ferrous metal resources, joint research cooperation is made with the Republic of Kazakhstan. It is intended that valuable metals (gold, silver, copper, rare metals, and others) contained at large quantity in ore scraps generated in association with mine operation be extracted and recovered efficiently paying considerations to the environment. The treatment process consists of the following conception: raw materials such as ore scraps are leached by sulfuric acid and microorganisms to separate and recover gold and silver; the leach liquor containing valuable metals is extracted by using solvent and recovered of copper and rare metals via an electrolytic process; and the waste water is treated and discharged. Fiscal 1998 has performed studies on the wet treatment system at the site and in Japan, the gold and silver treatment, and the waste water treatment by using samples collected from the site in fiscal 1996. Based on the results of these fundamental studies, a pilot plant was built, and all of the facility fabrication was completed in fiscal 1998. Part of the facilities has been transported to the site. To drive the project forward effectively, materials and items of equipment required for the joint research were procured and transported to the country, and at the same time Kazakhstanian researchers were received in Japan for training. (NEDO)

  11. Effect of reversion treatment on strength and ductility of low C, Cr-Ni martensitic stainless steel with high resistance to weld softening. Yosetsu nanka teiko no takai teitanso Cr-Ni maruten saito kei stainless ko no kyodo, ensei ni oyobosu gyaku hentai shori no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Igawa, T.; Takemoto, T.; Uematsu, Y. (Nisshin Steel Co. Ltd., Tokyo (Japan). Steel R and D Lab.); Hoshino, K. (Nisshin Steel Co. Ltd., Tokyo (Japan))

    1993-08-01

    Like the stainless steel and the stainless steel belt used in the rolling stock, materials treated by process and weld has a high strength and a good ductility, moreover, was expected that weld softening would not occurred. In this study, formation of the ultra-fine crystal grains based on the M to [gamma] reversion transformation of low C, Cr-Ni martensitic stainless steel and effect of Si on change of mechanical properties were investigated. A high-strength stainless steel with a good ductility and without weld softening was developed. Main results obtained are as follows: After a steel was cold-rolled, the reversion treatment at the region between As and Af temperatures (600 to 640[degree]C) was carried out, a duplex structure with diameter of the ultra-fine grains of about 0.5 micron meter that is composed of [gamma] phase concentrated Ni and sintered M phase was formatted, and excellent mechanical properties with a high strength and a good ductility could be obtained, diameter of reversion [gamma] grains was dependent on reversion temperature. Diameter of [gamma] grains became large, and more homogeneous and uniform at higher reversion temperature. 20 refs., 11 figs., 2 tabs.

  12. Report on the survey in fiscal 1998. Basic survey on promotion of the joint implementation (a survey on improvement in wastes treatment system in Tapioka starch manufacturing plants); 1998 nendo chosa hokokusho. Kyodo jisshi nado suishin kiso chosa (Tapioka denpun kako kojo no haikibutsu shori no kaizen chosa)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In order to promote the joint implementation based on COP3, a survey and a discussion were given on improvement in wastes treatment systems and reduction of greenhouse effect gas emission in Tapioka starch manufacturing plants scattered in Indonesia. Currently, the wastes are disposed untreated, discharging methane gas into atmosphere as a result of putrefaction and contamination. Ten factories were picked up as the object of the survey. The following processes are to be adopted as the most suitable method for treating waste water and waste substances: solids (peels and fibers) are composted, and rinsing waste water is subjected to simple aerobic treatment; purified waste water is recovered of methane gas by means of anaerobic treatment; and the reduction amount of greenhouse effect gas converted to CO2 is estimated to reach 314,824 tons per year in total of the ten factories. If the carbon dioxide discharge right can be transacted at a sales price of a dollar per ton, assuming the compost sales price at 200 Rp./kg, the IRR will be 10% or higher, making the project very highly profitable. An IRR of 8% may not be assured unless the discharge right can be sold at 5 dollars per ton if the compost sales price is 150 Rp./kg. The Indonesian Government expects financial assistance from Japan for the pilot plant demonstration. (NEDO)

  13. FY 2000 report on the results of the R and D of fundamental technologies of superconductivity applications. Development of technology to process low consumption power ultra high speed signals; 2000 nendo chodendo oyo kiban gijutsu kenkyu kaihatsu seika hokokusho. Teishohi denryoku chokosoku shingo shori gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-05-01

    In relation to the project on the R and D of fundamental technologies of superconductivity applications, the FY 2000 results of the design/fabrication of superconducting circuits were summarized. As to the development of technology to design superconducting circuits, an increase in circuit scale was tried targeting AD converter use modulator and decimation filter. As a result, operation was confirmed in element circuits of flux quantum multiplier circuit, feed back driver, DC isolator, etc. Concerning the development of technology for standard junction and integration, RHEED observations on the thin film surface before/after etching and YBa{sub 2}Cu{sub 3}O{sub 7-x} re-deposition were tried to be made, and the potentiality as monitoring technology was indicated. With respect to the fabrication of small scale circuits for demonstration, the design/trial fabrication were made of the basic pattern of SFQ circuit elements such as DC-SFQ, T-FF and SQUID for inductance rating. In regard to the development of technology to measure characteristics of superconducting circuits, a system was fabricated for processing and measuring output signals from {sigma}-{delta} modulators by semiconductor circuits, and it made the evaluation of AD converter performance possible. (NEDO)

  14. Achievement report for fiscal 1998 on the research and development of a basic technology to apply superconduction. Development of a low power consuming and high-speed signal processing technology; 1998 nendo chodendo oyo kiban gijutsu kenkyu kaihatsu seika hokokusho. Teishohi denryoku chokosoku shingo shori gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-05-01

    The development of a superconduction circuit designing and manufacturing technology has achieved the following results: with respect to designing a circuit for single flux quantum (SFQ), the 'high-speed high-accuracy AC converter for front end of software radio' was selected as the target for a prototype to demonstrate the performance of the SFQ circuit. In analyzing movements of different SFQ basic circuits, such circuit simulator software versions were introduced as Saber, WR-SPICE, Wins, and Microcap, different motion waveforms for basic theoretical circuits were derived to compare their performances, and the effectiveness was verified respectively. In trial fabrication of a small demonstration circuit, design parameters were acquired from SQUID. In developing the technology to measure superconduction circuit characteristics, the following results were obtained: with regard to the element measuring and evaluating technology, an in-plane distribution measuring device was started up; and with respect to the circuit characteristics measuring and evaluating technology, a measuring system with low noise and low magnetic field was introduced. Regarding the circuit high-speed characteristics evaluating technology, development was made on a micro-strip line and coplanar transmission route converter. (NEDO)

  15. Introduction of the information system research and development department at Kansai Electric Power Company. Company uses the latest information processing technology to respond to customers' needs to structure an information system; Kanden joho system no kenkyu kaihatsu bumon no shokai. Saishin no joho shori gijutsu ni yori, okyakusama no joho system ka no needs ni okotaeshimasu

    Energy Technology Data Exchange (ETDEWEB)

    Ashida, Y. [Kansai Electric Power Co. Inc., Osaka (Japan)

    1998-12-10

    This paper introduces the research and development on the information processing technology at the Kansai Electric Power Company. In the research of a system development technology utilizing the object orientation, works are being made on the Java language drawing attention as an intranet development environment and the common object request broker architecture (CORBA). In the research of a technology to operate and control a large-scale network, basing on the current status of the KIND net of the Kansai Electric Power Company, discussions are being given on expanding and improving the functions of system tools made by Hitachi, Ltd. with an intention of achieving unified operation and control of the networks including not only the CSS system, but the host system. In the investigations and researches on different kinds of tools intended for data warehouse structuring, products are investigated and methods are discussed, such as the data extracting and editing tools to structure databases, and the on-line analysis processing (OLAP) tool to retrieve and analyze a great quantity of data. Researches are being made on application of the visual private office (VPO) service on the Internet, and on applicability evaluation for the individual certification technology. Investigations are being made on applicability of the enterprise resource planning (ERP) package. (NEDO)

  16. 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)

    Energy Technology Data Exchange (ETDEWEB)

    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)

  17. Stability of earth dredged from the sea bed to be spread on the ground. From experiences of large-sized earth disposal site constructing works at power plant on the Bay of Tachibana; Kaitei shunsetsudo no takamoritsuchi shori ni okeru anteisei ni tsuite. Tachibanawan hatsudensho daikibo tsuchisuteba koji no keiken kara

    Energy Technology Data Exchange (ETDEWEB)

    Suesawa, H.; Okada, H.; Tachikawa, T. [Shikoku Electric Power Co., Inc., Kagawa (Japan)

    1998-03-05

    The earth disposal site construction works for a power plant on the Bay of Tachibana were to spread earth on the ground to a height of around 50m. Of a total quantity of earth (around 2.2 million m{sup 3}) spread, around 1.2 million m{sup 3} of the earth is slurried, dredged from the sea bed and solidified with a solidification agent. It is reported that the solidified earth, an artificially cementation-treated slurry, shows mechanical behavior apparently similar to that associated with an excessively compacted slurry. When the solidified earth showing such characteristics is spread on the ground, it is necessary to investigate its mechanical characteristics, and to confirm its stability from various aspects, including stress/strain of the spread earth. In the design stage, the simultaneous FEM analysis was done for the relationship between stress/strain and permeating flow using an elastoviscous plastic model that represents the mechanical characteristics of the solidified earth, to predict horizontal displacement and sink. At the same time, they were actually measured as height of the spread earth increased, to assess and investigate stability of the earth. 5 refs., 18 figs., 2 tabs.

  18. Construction of pumping site using the fly ash-gypsum-cement deep mixing method for a new coal-fired power plant at the Bay of Tachibana; Tachibanawan karyoku hatsudensho shinsetsu koji flyash wo riyoshita shinso kongo shori koho ni yoru pump jo no seko

    Energy Technology Data Exchange (ETDEWEB)

    Yamashita, K.; Kurisaki, K. [Electric Power Development Co. Ltd., Tokyo (Japan)

    1998-03-05

    Fly ashes exhausted from coal-fired power plants are used for a new coal-fired power plant at the Bay of Tachibana, where the fly ash-gypsum-cement deep mixing (FGC-DM) method is used to construct the base and soil-stopping walls for the pumps that circulate cooling water to the steam condensers. This paper outlines the design and application of the soil improvement method in which a total of 2,945 piles of modified concrete are placed, together with the background for adopting the method. These piles extend a total length of 45,000m. The concrete used for the soil-stopping wall, that for the pumping site and excavated section contains 100, 150 and 58kg/m{sup 3} of cement, and 50, 75 and 29kg/m{sup 3} of fly ashes, quantities of the slurries, 80% in water/powder ratio, being 200, 299 and 116l/m3, respectively. After the FGC-DM works were completed, a total of 15 check bores were drilled to confirm soil strength. Monoaxial strength is 2,260kN/m{sup 2} in the reclaimed site, and 2,310kN/m{sup 2} in the clay site. Strength of the reclaimed site fluctuates to a limited extent, because it is filled with soil uniformly throughout the worked area, and is on a level with the one observed by the on-the-site compounding test. On the other hand, strength of the clay site is higher than that observed by the tests. 4 refs., 9 figs., 5 tabs.

  19. Fiscal 1996 international research cooperation project. Feasibility study of finding out the seeds of international joint research (technology for effective use of saturated hydrocarbon, technology for reducing excess of aromatic hydrocarbon, high-grade treatment technology of petroleum coke); 1996 nendo kokusai kenkyu kyoryoku jigyo. Kokusai kyodo kenkyu seeds hakkutsu no tame no FS chosa (howa tanka suiso no yuko riyo gijutsu, hokozoku tanka suiso no yojo taisaku gijutsu, sekiyu cokes no kodo shori gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This project is aimed at internationally cooperating in the R and D of industrial technology and improving industrial technology of Japan. For it, the following three technologies were investigated: (1) technology for effective use of saturated hydrocarbon, (2) technology for reducing excess of aromatic hydrocarbon, (3) high-grade treatment technology of petroleum coke. In (1), surveys were conducted of technologies of effective use of natural gas and effective use of C4 saturated hydrocarbon. Surveyed were a method for producing synthesis gas from natural gas, a technology to liquefy natural gas into fuel following the synthesis gas production process, a technology to liquefy natural gas into fuel without the synthesis gas production process, and the trend of effective use of C4 saturated hydrocarbon. In (2), surveys were made of process to reduce production of aromatic hydrocarbon as much as possible, process to effectively separate aromatic hydrocarbon, and process to convert excess aromatic hydrocarbon into polymer, etc. In (3), surveys were conducted on petroleum coke and pitch in terms of production methods, the supply/demand situation, property characteristics, usability to new fields, etc. 170 refs., 114 figs., 65 tabs.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

  1. To evaluate and compare the effect of different Post Surface treatments on the Tensile Bond Strength between Fiber Posts and Composite Resin.

    Science.gov (United States)

    Shori, Deepa; Pandey, Swapnil; Kubde, Rajesh; Rathod, Yogesh; Atara, Rahul; Rathi, Shravan

    2013-10-01

    Fiber posts are widely used for restoration of mutilated teeth that lack adequate coronal tooth structure to retain a core for definitive restoration, bond between the fiber post and composite material depends upon the chemical reaction between the post surface and the resin material used for building up the core. In attempt to maximize the resin bonding with fiber post, different post surface conditioning is advocated. Therefore the purpose of the study is to examine the interfacial strength between fiber post and composite, as core build-up material after different surface treatments of fiber posts. Twenty fiber posts were split into four groups off five each according to different surface treatments viz. Group I-(Negative Control), Group II-Silanization (Positive control), Group III-(37% Phosphoric Acid & Silanization) ,Group IV- (10% Hydrogen Peroxide and Silanization). With the preformed plastic mould, a core of dual cure composite resin around the fiber post having the uniform thickness was created. Tensile bond strength of each specimen was measured under Universal Testing Machine (UTM) at the cross head speed of 3mm/min. The results achieved with 10% Hydrogen peroxide had a marked effect on micro tensile bond strength values between the tested materials. Immense enhancement in the silanization efficiency of quartz fiber phase was observed with different surface chemical treatment of the resin phase of fiber posts with the marked increase in the micro-tensile bond strength between fiber post and composite core. Shori D, Pandey S, Kubde R, Rathod Y, Atara R, Rathi S. To evaluate and compare the effect of different Post Surface treatments on the Tensile Bond Strength between Fiber Posts and Composite Resin. J Int Oral Health 2013; 5(5):27-32.