WorldWideScience

Sample records for haikibutsu shori oyobi

  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. Waste management in the world; Sekai no haikibutsu shori

    Energy Technology Data Exchange (ETDEWEB)

    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.

  3. 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)

  4. 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)

  5. 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.

  6. Fiscal 1997 survey report. Basic survey on trends of waste use type production facilities and waste fuel production facilities; 1997 nendo chosa hokokusho. Haikibutsu riyogata seizo shisetsu oyobi haikibutsu nenryo seizo shisetsu doko kiso chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This survey was made to obtain the basic data for future spread and promotion of No.6 type (waste use type production facilities) and No.7 type (waste fuel production facilities) which were added to the objects having been subsidized since fiscal 1997 under `the environmental harmony type energy community project.` In the former, the kiln in the cement industry and the blast furnace in the steel industry can be extremely large places to receive waste plastic since the facilities are distributed in every area and the treatment capacity is large. However, the effective collection, transportation and sorting of large quantity of waste plastic, especially the problem of removal of vinyl chloride, is a big bottleneck. As to the use of waste plastic using gasification technology, there are no actual results on the commercial basis. That is, however, appropriate for treatment of the waste difficult in treatment, and can be expected of the usage in the chemical industry. In the latter, in the facilities using industrial waste raw materials as fuel, solidification and liquefaction are both operated on a commercial basis. In relation to the solidification and use as fuel of general waste, the treatment of combustion ash is preventing the expansion of use of waste in the industrial field because of a large quantity of chlorine included in the products. 92 refs., 54 figs., 35 tabs.

  7. 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.

  8. 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)

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. 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)

  14. 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)

  15. Survey for making a data book on the new energy technological development. Waste-fueled power generation, solar heat utilization, geothermal power generation, clean energy vehicles, coal liquefaction/gasification, and traversal themes; Shin energy gijutsu kaihatsu kankei data shu sakusei chosa. Haikibutsu hatsuden, taiyonetsu riyo, chinetsu hatsuden, clean energy jidosha, sekitan ekika, gas ka oyobi odanteki tema

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    The paper concerns the following six fields among the fields of new energy technology: the waste-fueled power generation, solar heat utilization, geothermal power generation, clean energy vehicles, coal liquefaction and coal gasification. The up-to-date data made public were collected and classified into the following items: outline of systems, specific examples of the introduction in Japan and other countries, policies/laws and rules/subsidy systems, production quantity/actual amount of introduction/projected amount of introduction (target), cost, terminology, listing of main related companies and groups, etc. Further, arrangement was traversally conducted on the outlook of the energy introduction by the Japanese government and measures taken for development of new energy by Japan and other countries. Namely, the items of the book are as follows: classification of new energy, outlook for energy supply/demand, cost of new energy technology (power generation) and outlook for the introduction, menus of buying surplus electricity of electric companies, policies/laws and rules/subsidy systems concerning the new energy introduction in Japan and overseas, and a list of organizations engaged in the new energy technological development.

  16. Fiscal 1997 report on the survey for a data book on new energy technology development. Waste power generation, solar energy utilization. geothermal power generation, clean energy vehicles, coal liquefaction/gasification, and traverse themes; 1997 nendo chosa hokokusho. Shin energy gijutsu kaihatsu kankei data shu sakusei chosa (haikibutsu hatsuden, taiyonetsu riyo, chinetsu hatsuden, clean energy jidosha, sekitan ekika gas ka oyobi odanteki theme)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The paper collected and arranged data on new energy technology. As to the waste power generation, in terms of general waste, 161 places have power generation facilities, 657,000 kW in output, as of the end of FY 1996. Out of them, 100 facilities (scale of output: 555,000 kW) are selling power. In terms of industrial waste, 53 places (209,000 kW) have power generation facilities. The output will be 2 million kW in FY 2000. In relation to the solar energy utilization, the number of solar systems introduced in FY 1996 is 25,000, that of water heating appliances produced in FY 1996 is 170,000. Geothermal power of 494,000 kW and 37,000 kW was introduced for electric power industry use and private use, respectively. Clean energy vehicles have not been so much spread, but the hybrid car was put on sale in 1997. Concerning the coal liquefaction, the R and D were made at a pilot plant of NEDOL process, and operation started in 1997. As to the coal gasification, investigational study and element study on the demonstration plant are being conducted in FY 1997 and 1998, making use of the research results obtained from the existing pilot plant of coal gasification combined power generation

  17. FY 1998 survey report. Survey to prepare a data book related to new energy technology development (Trends on the waste power generation, solar heat utilization, geothermal power generation, clean energy cars, coal liquefaction/coal gasification and new energy); 1998 nendo chosa hokokusho. Shin energy gijutsu kaihatsu kankei data shu sakusei chosa (haikibutsu hatsuden, taiyonetsu riyo, chinetsu hatsuden, clean energy, jidosha, sekitan ekika gas ka oyobi shin energy kanren doko)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Together with the progress of technology development, policies for the introduction/promotion of new energy technology are being developed such as promotion of the commercialization development, revision of the law system, and expansion of the subsidy system for promotion. To push the introduction/promotion forward more effectively, it is necessary to arrange various kinds of data comprehensively/systematically and to make them the basic data for contribution to the spread/education. As to the six fields of the waste power generation, solar heat utilization, geothermal power generation, clean energy cars, coal liquefaction, and coal gasification of the technology fields of new energy, this report collected/arranged the data made public recently in terms mainly of the following: trends of the introduction in Japan and abroad, policy/law/subsidy system in Japan and abroad, cost, system outline, basic terms, a list of the main affiliated companies and groups, and the nation's outlook for energy introduction and policies of each new energy technology in Japan and abroad, and the trends. Moreover, characteristics by field were described of the state of the commercialization/introduction of new energy technology. (NEDO)

  18. Advanced water purification technology. Kodo josui shori gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    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.

  19. 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.

  20. 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)

  1. 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.

  2. Waste minimization activities in Toyota Motor Corporation; Haikibutsu teigen eno torikumi jokyo

    Energy Technology Data Exchange (ETDEWEB)

    Taguchi, S.; Yamamoto, N.; Kurai, H. [Toyota Motor Corp., Aichi (Japan)

    1998-07-01

    Toyota`s waste reduction efforts based on a drive for dealing with the source of waste generation are introduced. For the propulsion of the policy for dealing directly with the origin of waste, it is necessary to convert the existing manufacturing processes that give high priority to product quality and low production cost into environmental impact reduction oriented processes. In particular, conversion of materials into those that are easier to recycle, technology for reducing defective products, technology for the completion of recycling within the process involved, and the simplification of all the processes are mentioned. For the cleaning job in the machining process, a detergent enhanced in oil/water separating capability is developed, and this prolongs doubly the detergent replacement period and decreases the waste liquid to a 1/4 or less of what the conventional method produces. For the handling of foundry sand that is yielded in great quantities, a flow classification system is developed to replace the conventional gravitational classifier, and the reusable coarse-grain sand in the collected dust which occupies approximately 70% of the whole waste is now recovered for reuse. In the vehicle body coating process, a newly-developed robot arm type coating system is developed, which halves the coating waste. 2 refs., 9 figs., 1 tab.

  3. 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.

  4. 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.

  5. 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)

  6. 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.

  7. 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.

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

    Energy Technology Data Exchange (ETDEWEB)

    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.

  9. 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.

  10. 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.

  11. 1998 report on development of high-efficiency waste power generation technology. 2. Development of waste gasification and ash melting power generation technology; 1998 nendo kokoritsu haikibutsu hatsuden gijutsu kaihatsu seika hokokusho. Haikibutsu gas ka yoyu hatsuden gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In regard to waste gasification and ash melting power generation, a basic test and examination were conducted in fiscal 1998, with a full-scale development test made ready to start. In the development of technology for raising steam temperature, evaluation of high temperature corrosivity of SH materials and development of high-temperature dust removal system were carried out for example, as were development of dechlorination technology for thermal decomposition process and development of ceramic high-temperature air heater. In the development of technology to prevent exhaust gas reheating, preliminary examination was made on denitrification technologies using a catalyst with superior low-temperature activity. In the development of technology to reduce self-heat melting critical calorific value, investigation and basic test were carried out concerning a stable waste feed system, with a pilot test device experimentally manufactured and tested based on the findings. In the development of technology for reducing external fuel input, examination and analysis were performed on pretreatment techniques for waste plastics, with basic data obtained for a waste blowing system project. In addition, the thermal decomposition and combustion characteristics of waste plastics were clarified by the basic test. (NEDO)

  12. Study on seepage water circulation in landfill waste disposal site. Haikibutsu umetate shobunchi shinshutsusui no kankyo ni kansuru kosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Hosomi, M.; Nakasugi, O. (National Institute for Environmental Studies, Tsukuba (Japan))

    1990-10-29

    The report presents a study on the treatment of seepage water discharged from the waste layer in a landfill waste disposal site and on seepage water circulation as a method for accelerating the stabilization of waste in a landfill site. Seepage water circulation is intended to feed seepage water back onto or into the waste layer so that water is distibuted uniformly over the waste layer. Study results show that seepage water circulation can effectively remove those organic substances which are associated with BOD and COD. In Japan, seepage water circulation is mainly performed by spreading water over the landfill site with the aim of reducing the amount of seepage water through evaporation. Circulation also serves to accelerate the generation of gas such as methane and carbon dioxide. Circulation causes a depression, which acts as a total index reflecting not only biological and chemical reactions but also physical processes. It is also found that the acidic fermentation which occurs during the landfill stabilization process can be promoted by properly controlling the pH value. 2 tabs.

  13. Fiscal 2000 survey of refuse-fueled power generation introduction technology, etc. Survey of industrial refuse-fueled power generation (Industrial refuse-fueled power generation case study implementation - 1); 2000 nendo chosa haikibutsu hatsuden donyu gijutsu chosa to - Sangyo haikibutsu hatsuden chosa (Sangyo haikibutsu hatsuden case study no jisshi - 1)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Case studies were conducted of industrial refuse-fueled power generation using plastic waste, paper waste, and wood chips, and the same using the excretions of cattle. In the study of power generation fueled by mixed waste containing plastic waste, 325t/d, 220t/d, and 130t/d incinerators having the lower calorific value of 5,960-6,401 kcal/kg were taken up, and steam conditions, generator output, generating-end efficiency, station service power ratio, sending-end efficiency, etc., were tentatively calculated. As for cost efficiency, a manufacturer's estimate indicated that commercialization would be impossible in all the cases unless the construction cost was cut down. In the study of excretion-fueled power generation, cases were taken up where medium-temperature fermentation proceeded for the excretions of 620-29,853 dairy cows (32-1,576 t/d). A calculation was performed on conditions that the construction cost and maintenance/utility costs were as estimated by the manufacturer, that the excretion treatment and power generation facilities were covered by subsidies, and that personnel expenses of 6-million yen were necessary. It was then found that there would be commercial viability in case the yield was 790t/d or higher. (NEDO)

  14. Development of carbon and silica free immersion nozzle; Kabon oyobi shirikaresu shinshi nozuru no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Sasajima, Yasushi; Ando, Mitsuru; Takahashi, Shigeaki; Matsumura, Takeshi; Hironaka, Yoshio [TYK Corp., Gifu (Japan)

    1999-06-01

    Alumina adhesion to an immersion nozzle of AG (alumina, graphite, silica) material occurring in continuous casting of Al killed steel causes nozzle plugging, quality degradation and inclusion defects, and its protective measures are required. The previous paper reported carbon and silica free material as a measure, and this paper reports the test with a real immersion nozzle. From the examination results in the previous report, spinel had low reactivity with Al{sub 2}O{sub 3}, good surface smoothness and low alumina adhesion, but the thermal spalling resistance was poor. Thus, the main body was made of the AG material and the inner hollow part was lined with the spinel material. The spinel material had a lower erosion resistance than the AG material, but the level was not considered to be a problem. As a real scale test, a casting test was carried out with a silicaless C-Al{sub 2}O{sub 3}-SiC based AG material A and with a material B using spinel as a silicaless material. Alumina adhesion was observed in A but no adhesion was observed in the inner hollow part of B, which confirmed the effectiveness of spinel. (NEDO)

  15. Thin film solar cell and its production method; Hakumaku taiyo denchi oyobi sono seiho

    Energy Technology Data Exchange (ETDEWEB)

    Yokoyama, H.; Yamamoto, K.; Mishima, T.; Matsuda, T. [Daido Hokusan Co. Ltd., Osaka (Japan). Sakai Lab.

    1997-01-17

    An attempt has been made to replace the single crystal silicon substrate for other inexpensive substrate coated with Si thin film for cost saving in the silicon solar cell production. It was found, however, a big difference in thermal expansion coefficient between the substrate and Si brought about a big warp of the substrate when the Si film was made thick enough for solar cell use. This invention solves the problem. The Si thin film is grown through a mask having many holes with constant interval instead of being grown as a continuous layer. The Si film is, therefore, formed in island structure which rises from many holes. The island structure crystals exist, being separated from each other. They consist of discontinuous points. So that they can expand thermally in accordance with the thermal expansion of the substrate. Even if there is a difference in thermal expansion between the inexpensive substrate and Si crystal film, little warp takes place in the laminate. 8 figs.

  16. 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)

    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.

  17. 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.

  18. 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.

  19. 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.

  20. 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)

  1. 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.

  2. 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.

  3. 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.

  4. Development of high-efficiency wastes-burning electric power generating technology. Volume 1. Report for fiscal 1999; Kokoritsu haikibutsu hatsuden gijutsu kaihatsu 1999 nendo hokokusho. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This paper summarizes the achievements of developing a technology to generate electric power at high efficiency by using a combustion furnace that uses general wastes and combustible industrial wastes as fuel to generate high-temperature and high-pressure steam under a stabilized condition. In the developmental research of the combustion furnace, discussions were given on single-pass and double-pass type stalker furnaces, an internal circulation type fluidized bed furnace, and an external circulation type fluidized bed furnace, whereas technological prospects were established on any of them as the combustion furnace. In developing corrosion resistant super heater materials, demonstration tests were performed by using a pilot plant, corrosion mechanisms were elucidated, amount of corrosion in steam generating tubes was discussed, and corrosion life of super heaters was estimated. In developing a technology to reduce environmental load, developmental researches were carried out on a method to treat waste gases by using pulse plasma to have established nearly completely a waste gas treatment system technology. In the demonstration test using the pilot plant, the operation has started from February 1998, generating stably the steam conditions of 500 degrees C and 9.8 MPa, and the smooth operation has continued. (NEDO)

  5. Research report of fiscal 1997. Study on profitability evaluation technique for waste power generation; 1997 nendo chosa hokokusho. Haikibutsu hatsuden ni kansuru keizaisei hyoka shuho no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    For diffusion of waste power generation, cost reduction is important. As the profitability evaluation technique for conventional waste power systems, a simple recovery year method, total waste treatment cost method, generation cost method, and evaluation method by accumulated balance sheet are presented along with their principles. For the generation cost method, trial calculation results are presented based on documents reported. From methods for the study in Institute of Applied Energy, some estimation methods of construction cost are presented, and generation cost and profitability evaluation were studied by parametric accumulation method. The profitability was calculated for RDF power systems, and it was clarified that although as a whole this system is more efficient than a simple refuse incineration system, the balance sheet of local governments is dependent on a responsibility range for the facility. In a combined type (super refuse power generation), generally municipalities bear a combustor and boiler, while a prefecture bears generation facilities. Because of large scale generation, the profitability is dependent on a selling price of electricity. 37 refs., 36 figs., 24 tabs.

  6. Environment-friendly type energy and coordinated community development project. Feasibility study for industrialization of high efficiency waste-fired power generation system using CSD and other wastes; Kankyo chowagata energy community keisei sokushin. Kokoritsu haikibutsu hatsuden (CSD nado haikibutsu riyo) jigyoka FS chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    This report presents the feasibility of enterprise on power generation by thermal recycle and selling power together with volume reduction, de-harming (de-toxification) and stabilization of the shredder dust. Contents of the study include the investigation of generation amount of car shredder dust (CSD) and its properties, trial design of high efficiency power generation facilities, selection of boiler tube materials, incineration test with a melting kiln test plant, disposal and effective use of melted slag and fly ash, and environmental impact assessment. The capacity of waste disposal in the trial design contains 1,140 ton/day of shredder dust, 60 ton/day of waste plastics, sludge and waste paper, and 130 ton/day of waste oil. Melting kiln with secondary combustion chamber was adopted as the incineration type. The high temperature and high pressure waste heat boiler with an extraction condensing turbine was adopted as the waste heat recovery and power generation type. Stable combustion was confirmed from the results using a test plant. According to the consideration of cost and unit cost results for wholesale power supply, if it is postulated that income for waste disposal is 12,000 yen/ton, power generation costs in excess power selling and wholesales are 6.4 yen/kWh and 9.1 yen/kWh, respectively. 67 figs., 48 tabs.

  7. GC/FID and GC/MS analysis on the compositions of coal-liquid naphtha and petroleum gasoline; Sekitan ekika naphtha oyobi sekiyu gasoline no sosei no GC/FID oyobi GC/MS ni yoru bunseki

    Energy Technology Data Exchange (ETDEWEB)

    Miki, Y.; Sugimoto, Y. [National Institute of Materials and Chemical Research, Tsukuba (Japan)

    1997-06-30

    In this paper, the composition of gasoline from petroleum and naphtha from liquefied coal is minutely analyzed using GC/FID (gas chromatography/flame ionization detector), GC/MS (gas chromatography/mass spectrometry), and GC/AED (gas chromatography/atomic emission detector). The chromatograms obtained from GC/MS are examined to find out if GC/MS-SIM (gas chromatography/mass spectrometry-selected ion monitoring), capable of analyzing ions different in m/z value one by one, may be applied to them. The number of components detected in gasoline is 446, and 605 in naphtha, and structures are determined for as much as 98% of them. GC/MS-SIM identifies many compounds that CG/FID fails to identify, and a fairly high quantitativeness is attained by measuring or inferring the parent ion detection sensitivity. It is suggested that a combined application of GC/FID and GC/MS-SIM will realize a still higher quantitativeness. 7 refs., 2 figs., 1 tab.

  8. Coating materials and solvents. 2. Acrylic acid, acrylate, and MMA; Toryo yozai. 2. Akurirusan oyobi akurirusan esuteru MMA

    Energy Technology Data Exchange (ETDEWEB)

    Akazawa, Y. [Nippon Shokubai Co. Ltd., Osaka (Japan)

    1997-09-01

    This paper describes the production process, its scale, physical properties and usage of acrylic acid, acrylate for general use, and MMA (methyl methacrylate). The propylene oxidation process is only one process for the industrial production of acrylic acid and acrylate due to its economical predominance. Annual production of acrylic acid in the world has reached to about 2.2 million tons. Relatively high growth rate is forecasted also in the future. In Japan, the acrylate is used for paints, adhesive materials, and fibers. The industrial production process of MMA includes ACH (acetone cyanhydrin) process, new ACH process, isobutylene process, MAN (methacrylonitrile) process, and ethylene carbonylation process. Demand and supply of MMA are characterized especially by the high proportion of export from Japan to the Asian region. Methacrylic resins are used for various materials, such as tail lamp lenses and meter panels of automobiles, and laser disks, CD-ROM and MD pick-ups in the field of electronic industry. Consumption of these resins is steadily extended. 16 refs., 6 figs., 7 tabs.

  9. Electric and VLF-MT survey of Tegatayama tunnel; Tegatayama tunnel no denki tansa oyobi VLF tansa

    Energy Technology Data Exchange (ETDEWEB)

    Nishitani, T. [Akita University, Akita (Japan). Mining College

    1997-05-27

    To survey the structure at the depth between 20 and 30 m, field tests were conducted by means of vertical electric and VFL-MT (magnetotelluric) survey. Tegatayama tunnel has a total length of 276 m, width of 7.5 m, and height of 4.7 m, and the depth from the surface is about 28 m near the top of mountain. Near the tunnel, the thickness of surface soil is about 60 cm, which consists of clay soil including soft mudstone gravel. It was found that terrace deposit is distributed up to the depth of 8 m, and that mudstone is distributed below the depth of 8 m. Weighted four-electrode method was adopted for the vertical electrical survey. Measurements were conducted at the immediately above the tunnel, 10 m apart from the center of tunnel in the right and left, and 20 m apart from the center in the east. For the VLF-MT method, component of frequency 22.2 kHz was used. As a result of the tests, it was difficult to illustrate the existence of tunnel from the vertical electrical survey only at one point. Feature of the tunnel could be well illustrated by means of the VLF-MT method. 3 refs., 9 figs.

  10. Method and apparatus for purging the fuel cell system; Nenryo denchi sochi no paji hoho oyobi sochi

    Energy Technology Data Exchange (ETDEWEB)

    Urata, T. [Tokyo (Japan); Yamafuji, K. [Tokyo (Japan)

    1995-01-10

    This invention provides a new method of purging the fuel cell system. The invented purge method makes it possible to prevent the hydrogen shortage state which may cause the electrode corrosion from occurring when purging the fuel cell after stopping its operation. The purge is done in the following way. The valve installed on the gas supply lines, i.e., the fuel gas supply line to the reforming process system and the reformed gas supply line to the fuel electrode are all closed to shut down the supply of both fuel gas and reformed gas to the fuel cell. Then the valves installed on the purge gas supply line to the process system and on the purge gas supply line to the air electrode are opened. Meanwhile, the valve installed on the purge gas supply line to the fuel electrode is kept closed. In this way, the process system and the air electrode are purged, while the fuel electrode keeps the reformed gas. Accordingly, a possible potential difference in the fuel gas does not cause the hydrogen shortage, preventing the corrosion of electrode material from taking place. 3 figs.

  11. Application of VSP to geological investigation; P ha oyobi S ha VSP wo mochiita shinso chishitsu chosa

    Energy Technology Data Exchange (ETDEWEB)

    Kinugasa, Y. [Geological Survey of Japan, Tsukuba (Japan); Feng, S.; Sugiyama, T.; Ishikawa, K. [Chuoh Kaihatsu Corp., Tokyo (Japan)

    1997-05-27

    Discussed in this paper are the P-wave and S-wave zero-offset VSPs carried out utilizing boreholes located in Nada Ward, Kobe City, and Hokudan-cho, Hyogo Prefecture, as part of the deep layer boring survey following Hanshin Earthquake Disaster. This effort aims at the elucidation of P-wave and S-wave velocity structures, high-precision identification of data obtained by the surface reflection method, and collection of basic data for active faults investigation in the future. Among the velocity structures obtained for various layers, the S-wave velocity structures in particular agree with the stratigraphy excellently and may be utilized in seismic analyses to be conducted in the future. Reflection from geological boundaries is received with precision, providing accurate information about correlation between reflection and geological cross sections. The records will be useful in formulating plans for reflection surveys for instance of the boundary between the Osaka group and Kobe group. Generally speaking, reflection coefficients are large when the reflection is from a boundary where difference is great in elastic wave impedance (mainly difference in velocity). In the case of the boundary between the Kobe group and granite in Awaji Island, however, no strong reflection is found despite the great difference in velocity. This is attributed to the complicated, sharp inclination of the basement rock and to its weathering. 4 refs., 8 figs.

  12. Fiscal 2000 study on technology and marketability concerning phytoremediation; 2000 nendo phytoremediation ni kansuru gijutsu oyobi shijosei no chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    An investigative study was conducted on phytoremediation with the purpose of correcting soil contamination caused by heavy metals and the like. In Japan, in connection with the cadmium pollution along the Jintsugawa River region in Toyama Prefecture, a growth of botanical colony such as Athyrium ykoscense was confirmed having a high capacity in absorbing/accumulating heavy metals, with a possibility suggested that they may be utilized for phytoremediation. In a technological research for restoring the environment sustainingly in a wide area, feasibility has been proven to remove polluting agricultural chemicals in farmlands and toxic substance in old industrial sites by making forest trees like poplars, lawns and herbage function. In a project for the cleanup of oil contaminated soil after Gulf War, a demonstrative test of bioremediation for one hectare was performed and, after 15 month experiment, 80 to 90% of aliphatic compounds and 50 to 60% aromatic compounds were degraded. In EU Framework Program in Europe, phytoremediation projects have been implemented across the member countries. (NEDO)

  13. On noise, traffic and factory vibrations in Akita city; Akitashi ni okeru soon oyobi kotsu kojo shindo ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Nogoshi, M.; Kikuchi, T.; Morino, T.; Sannohe, M. [Akita University, Akita (Japan). College of Education

    1996-05-01

    Noise and vibration were measured in Akita City. In 1994, noise and traffic-caused vibration were measured along the trunk lines and other roads across the entire Akita City area. In 1995, the effort centered on the Ibarashima manufacturing quarters, the important source of noise and vibration in Akita city. The general-purpose noise meter LA-220S was used to measure noise and the vibration level meter VR-5100 was used to measure vibration. The results of noise measurement carried out at 122 points in Akita City indicated that the noise level was high along Route 7, Route 13, and the southern line belonging to the newly built national highway, marking the highest of approximately 74dB. As compared with the measurement made in 1968, the value was higher by 3-13dB. A roughly similar trend was seen in vibration. The noise level measurement of 1995 accomplished at 100 points in the vicinity of Ibarashima district indicated that the factories were responsible for high levels of noise and vibration. It was found that the levels lowered in proportion to the increase in the distance from the factories. 11 figs., 1 tab.

  14. Output conversion device and position locating device of solar cell. Taiyo denchi no shutsuryoku henkan sochi oyobi ichi kenshutsu sochi

    Energy Technology Data Exchange (ETDEWEB)

    Nakamura, Masao; Kamimura, Shoji.

    1989-09-22

    This invention aims to provide an output conversion device of a soalr cell which can convert the cell output into a more easily controllable primary functional output, and a positive-locating device which utilizes it. In this invention, an exponential conversion element having exponential current-voltage characteristics is connected to the output side of the solar cell; a position locating device is connected witth the above exponential conversion element (at the output side of the solar cell) placed in the transfer passage of the transferring materials; based on the output value of the exponential conversion element, the position of the transferring material is detected. This exponebtial conversion element is preferrably an emission diode, and the input voltage into the element may be corrected by a voltage calibrating means. As a result, the solar cell can be easily used as a control sensor. 3 figs.

  15. Construction project and its current situation of Hekinan thermal power station. Hekinan karyoku hatsudensho no kensetsu keikaku oyobi jokyo

    Energy Technology Data Exchange (ETDEWEB)

    Mita, T. (Chubu Electric Power Co. Inc., Nagoya (Japan))

    1990-07-31

    Chubu Power Supply Co. started the construction project of No.1, 2 and 3 machines of Hekinan Thermal Power Station using coal in stable supply as its fuel on the seaside reclaimed land of Hekinan City, Aichi Prefecture in order to secure a power supply for the next term and diversify its power supplies aiming at starting of their respective commercial operations in October, 1991, June, 1992 and June, 1993. This article introduces the construction project of the above power station and its stage of construction. Concerning the steam conditions thereof, 246kg/cm {sup 2} g and 538 centigrade/566 centigrade were adopted for No.1 and 2 machines and for No.3 machine, improvement of its performance is intended by raising its reheating steam temperature to 593 centigrade. The boiler facilities are indoor type and adopt the coal burning supercritical pressure once-through type variable pressure operating system. They are designed to be able to cope with any intermediate load operation. Concerning the turbine equipment, the steam turbine is a machine of 3600 rpm which adopts 40 inch long vanes for its final stage vanes in order to improve its efficiency. For the environmental protection facility, the measures of reducing nitrogen oxides, dust and sulfur oxides, etc. are adopted. 8 figs., 3 tabs.

  16. Measurements of AC losses in oxide superconducting tapes and coils; Sankabutsu chodendo senzai oyobi koiru no koryu sonshitsu shokutei

    Energy Technology Data Exchange (ETDEWEB)

    Nakagami, M.; Watabe, K.; Kawagoe, A.; Sumiyoshi, F. [Kagoshima Univ., Kagoshima (Japan); Hayashi, H. [Kyushu Electric Power Co., Inc., Fukuoka (Japan)

    1999-06-07

    The application to the electric power equipment is expected oxide superconductivity wire rod, and short length linearity under the operating condition and quantitative evaluation of the ac loss in coil shape are important. Until now, we propose the pointing vector method as loss measuring method of the short length linear sample, and the equipment has been produced experimentally. However, in this measuring method, it was small within the signal of electric field with 10{sup -4}-10{sup -6} at loss component ratio, and there was a problem that the sensitometry was not sufficiently taken, since moreover, they are about number 10nV and weak signal very. Then, noise counterplan method in the measuring circuit, etc. were examined in order to improve the sensitometry this time. In addition, the examination of loss measuring method of the wire rod as coil shape is also reported, because it was done. (NEDO)

  17. Improvement of airtight property and workability of joint packing material; Teikeimejizai no shirusei oyobi sagyosei no kaizen

    Energy Technology Data Exchange (ETDEWEB)

    Ouchi, Tatsuya.; Harada, Tsutomu.; Ando, Hideyuki.; Yamato, Tsugio. [Kurosaki Corp., Fukuoka (Japan). Technical Research Center

    1999-09-01

    It is connected, and many refractories s are being used with continuous cast law. An including air volume from these union parts causes the quality decline of the steel and the problem of unusual loss around the union part of the refractories. Therefore, there is a big thing in the part, which the eye area material used for the union part of the refractories for the continuous cast plays. This time, the fixed form area material of the hard type which has a sticker and work between the excellent heat could get it in comparison with the usual fixed form area material for the purpose of the improvement in the sticker of the eye area material and the work (acceptable convenience time in the normal temperature form, the space of the heat) as a result of examining the application of the Al metal which doesn`t react easily with the new binder and the water. As for the utility test as well, it is reported because it was used without problem and that validity could be confirmed. (NEDO)

  18. Oxidation behavior of Ni powder and Ni powder compact; Ni fun oyobi Ni fun atsufuntai no sanka kyodo

    Energy Technology Data Exchange (ETDEWEB)

    Yamazaki, M.; Ochiai, S.; Watanabe, Y. [Teikyo Univ., Tokyo (Japan)

    1997-09-15

    With an objective to investigate reactions of metal powder and metal powder compact having open pores with gases, their oxidation behavior was elucidated by taking Ni powder and Ni powder compact as examples. Oxidation rate of the Ni powder can be expressed by the Jander equation, and activation energy for the oxidation was 0.948 times 10 {sup 5} J/mol. Oxidation rate of the Ni powder compact is equal to that of powder not made into compact in the initial stage of the oxidation, but it decreases as time elapses because of occurrence of packing of oxide. Difference in oxidation rate inside and outside the powder compact is very little. The oxidation rate of the powder compact was analyzed by using an improved Jander model. More specifically, a model was used, in which concentration difference of diffused components in the oxides decreases with progress of the oxidation, whereas 1.113 times 10 {sup 5} J/mol was derived as the activation energy of the oxidation. The cause for the activation energy for the oxidation of the powder and powder compact being about half of that for bulk Ni is because of low temperature oxidation of the powder, and tensile stress generated between metal particles and spherical shell shaped oxides, which make production of Ni {sup 2+} more difficult. 5 refs., 4 figs., 1 tab.

  19. Filtration coefficients and physical properties of fluids for osmotic action; Shinto gensho ni kansuru roka keisu oyobi busseichi

    Energy Technology Data Exchange (ETDEWEB)

    Ipposhi, S.; Imura, H. [Kumamoto University, Kumamoto (Japan). Faculty of Engineering; Konya, K. [Oji Paper Co. Ltd., Tokyo (Japan); Aoyama, N. [Kumamoto University, Kumamoto (Japan)

    1998-04-25

    In this study, filtration coefficients of tubular type osmosis membranes made of acetyl cellulose are measured by two methods. Effects of temperature and concentration on physical properties of fluids needed for study on osmotic action are also investigated using sodium chloride, potassium chloride, sucrose and polyethylene glycol 600 aqueous solutions as the testing fluids. As a result, a new method for measuring the filtration coefficient is proposed by making use of osmosis and it is clarified that there is no difference between filtration coefficients for osmosis and reverse osmosis processes. In addition, equations for mass diffusivity, permeability, viscosity and density of the above fluids are presented. 11 refs., 21 figs., 2 tabs.

  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. 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.

  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. Fiscal 1997 report of the development of high efficiency waste power generation technology. No.2 volume. Pilot plant verification test; Kokoritsu haikibutsu hatsuden gijutsu kaihatsu (pilot plant jissho shiken). 1997 nendo hokokusho (daini bunsatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    As to a high efficiency waste power generation system using general waste as fuel, the details of the following were described: design/construction management and operational study of pilot plant, design/manufacture/construction of pilot plant, and study of an optimal total system. Concerning the construction management and operational study, the paper described the application for governmental/official inspection procedures and taking inspection, process management of pilot plant, site patrol, safety management, management of trial run of pilot plant, drawing-up of a verification test plan and test run, etc. Relating to the design/manufacture/construction of pilot plant, an outline of the pilot plant was described. The paper also stated points to be considered in design of furnace structure and boiler structure, points to be considered of the verification test, etc. As to the study of an optimal total system, the following were described: survey of waste gasification/slagging power generation technology, basic study on RDF production process, survey of trends of waste power generation technology in the U.S., etc. 52 refs., 149 figs., 121 tabs.

  13. Incinerators for coping with environmental issue. Gasification melting technology for municipal waste (direct melting system for municipal waste recycling); Kankyo mondai ni taiosuru shokyakuro. Ippan haikibutsu no gas ka yoyu gijutsu (chokusetsu shigenka system)

    Energy Technology Data Exchange (ETDEWEB)

    Shibaike, H. [Nippon Steel Corp., Tokyo (Japan)

    1998-04-01

    In the above named system, waste including incombustibles is subjected to high-temperature direct gasification and melting for the waste to be reduced in volume and rendered harmless and recyclable. The system comprises a gasification melting furnace, combustion chamber, gas treatment facility, and a melt recycling facility. Coke and coal, together with waste, are fed into the vertical shaft furnace through a port at the middle. The inside of the furnace is divided, from the top section downward, into a drying/pre-heating zone (300degC), a pyrolytic gasification zone (300-1000degC), and a combustion/melting zone (1700-1800degC). The pyrolytic gas is exhausted from the top section, led into the combustion chamber, and, after perfect combustion, forwarded into the waste heat boiler. The residual ash and inorganic matters descend together with coke to the combustion/melting zone. The coke is burnt to high temperature by oxygen-enriched air from the tuyere, and melts the ash and organic matters perfectly. The melt is then taken out of the furnace, cooled by water for conversion into granular slag and metal iron, to be magnetically separated for the collection of iron. This is attracting attention as a next-generation technology because it will facilitate the siting of ultimate disposal plants, solve environmental pollution problems, and enable the reuse of resources. 8 refs., 10 figs., 4 tabs.

  14. Multi-objective analysis of mixed integer planning problem according to hybrid genetic algorithm. Application of waste disposal facility to location plan; Haiburiddo arugorizumu niyoru kongo seisukeikaku mondai no tamokuteki kaiseki. haikibutsu shobunshisetsu no ricchi keikaku heno oyo

    Energy Technology Data Exchange (ETDEWEB)

    Shimizu, Yoshiaki

    1999-02-05

    This paper was concerned to rationally solve problems based on the various complicated global social environment as representative of location and arrangement problems in the wide area network, and shown to classify many of these problems into a multi-objective mixed integer planning problem. However, since the solution-obtained work was extremely large to obtain a sole exact optimum solution due to significantly increasing the solution-obtained work with a large scale of these problems, development of the solution method to emphasize a practical standpoint that an approximate solution was hopefully obtained with less effort have been paid attention. Therefore, concerning the genetic algorithm regarded as a hopeful method in recent years, problems on a usual solution-obtaining process that real variables were coded and restriction conditions were treated as a penalty function were firstly pointed out. Based on this work as a practical solution method, the combination of a problem range and the characteristics of solution methods were considered into a step construction, and a hybrid genetic algorithm using mathematical programming was proposed. As an introduction method to a parade optimum solution in a multi-objective mixed integer planning problem, this solution method was mentioned to be a practical solution method. As concrete examples, a harmful waste disposal location plan problem was given; the effectiveness was examined by numerical experiments. (translated by NEDO)

  15. Mixture of industrial waste oxidized titanium and reduced slag from electric furnace used as hydraulic material. Denkiro kangen slug to sanka titan kogyo haikibutsu no kongobutsu no suinan zairyo to shiteno riyo

    Energy Technology Data Exchange (ETDEWEB)

    Honda, A. (Osaka City University, Osaka (Japan). Faculty of Engineering); Kuwayama, T. (Daido Institute of Technology, Nagoya (Japan)); Yamada, M.; Ikezaki, H. (Osaka City University, Osaka (Japan). Faculty of Engineering)

    1990-10-29

    Slag released from an electric furnace consists mainly of waste steel. There are two types of slag, namely, oxidized slag and reduced slag. Reduced slag, which is generally in the form of powder, is difficult to recycle as compared with oxidized slag. However, with a hydraulicity, some reduced slag is expected to be useful as hydraulic material. Test results obtained here show that the hydraulic properties of reduced slag powder can be improved by mixing it with gypsum and that the resultant mixture can serve to improve the prooperties of soft clay. Another study is made to determine the potential, as hydraulic material, of mixtures of reduced slag powder and waste gypsum material with a high gypsum content released from an oxidized titanium production process. The hydraulicity is found to develop as a result of the formation of a hydrate of calcium aluminate which is contained in the slag. Addition of water to the hydrate and gypsum cause the formation of ettringite, leading to an increased uniaxial compressive strength. These findings indicate that the above-mentioned mixture can be useful to improve the hydraulic properties of coal ash to be disposed of at landfill sites. 5 refs., 5 figs., 1 tab.

  16. Application of Ni-Ti base shape memory and super-elastic alloys; Ni-Ti kikeijo kioku oyobi chodansei gokin no jitsuyoka jokyo

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Y. [Furukawa Electric Co. Ltd., Yokahama (Japan). Yakahama R and D Laboratories

    1998-12-20

    The thermal hysteresis Hs of Ni-Ti binary alloy was between 20K and 40K. Those values had no problem when the alloy was used as a one-way element, but were too large for the use of the alloy as a reversible two-way actuator. Hs decreased to 10 - 15K by copper addition, and shape memory effect due to R (Rhombohedral) phase transformation was found later which decreased Hs by a large margin. Hs became as small as about 2K with the repetition life of more than 1 million times, and Hs became 100K by utilizing micro-dispersion of niobium. Applications of Ni-Ti binary alloy, Ni-Ti-Cu alloy, R phase alloy, and Ni-Ti-Nb alloy were discussed. Superelasticity was put to practical use in such a surprising field as the core grid for the brassiere, and used also for medical corsets. The field of spectacles rim is a treasure-house for the application of superelasticity. Applications also to antennas for portable telephones and orthodontic wire are successful. 30 refs., 21 figs., 1 tab.

  17. Fabrication and erection of 'Chuo ohashi bridge' for Tokyo Metropolitan Government. Tokyoto kensetsukyoku 'Chuo ohashi' no seisaku oyobi kasetsu

    Energy Technology Data Exchange (ETDEWEB)

    1994-07-01

    The present report outlines the superstructure of 'Chuo Ohashi Bridge' spanning the Sumida River, Tokyo Metropolis. Being 210.7m in length and 25.0m in breadth, that bridge is a cable-stayed bridge partially curved with a 220m radius curvature. Having a height of 76.8m, its main tower is shaped into an upside-down V with a curved top. Description of the points of which care was specially taken for the fabrication and construction in yard covers the cable anchorage of both girders and tower, assembly and welding, anti-shrinkage camber of girders, weld bevel preparation for the tower, tentative assembly, and accuracy control. Results of the wind tunnel test with a (1/50) scale model are as follows: stay cables were installed as measures against the vibration during the main tower erection. The main girders, main tower and cables were the order of superstructural erection. The cable tensioning was supervised mainly with its proper tension adjustment and subsidiarily for the configuration of bridge built. 2 refs., 10 figs., 1 tab.

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

    Energy Technology Data Exchange (ETDEWEB)

    Kajiwara, T.; Takemoto, S.

    1997-05-27

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

  19. Fuel cell power generation system, nitrogen purging method and temperature elevation method. Nenryo denchi hatsuden system oyobi sono chisso purge hoho narabini shoon hoho

    Energy Technology Data Exchange (ETDEWEB)

    Iwasa, N. (Osaka Gas Co. Ltd., Osaka (Japan)); Taguma, Y. (Mitsubishi Electric Corp., Tokyo (Japan))

    1991-11-18

    Nitrogen is purged from the upstream side of the desulfurizer when the system is shut down in the case with the conventional fuel cell power generation system, but the purging of nitrogen in the adsorber takes time because the normal temperature adsorption type catalyst (desulfurizing catalyst) used for the desulfurizer has a characteristic of adsorbing hydrocarbon fuel. This invention relates to the fuel cell power generation system in which the nitrogen supply pipe to be connected to the nitrogen device is provided at the downstream side of the desulfurizer through a shut-off valve which is opened at the shutdown time of the system for reformaer nitrogen purging from the downstream side of the desulfurizer. As a result, nitrogen can be purged in a short time without causing carbon deposition. In addition, effective temperature elevation can be made in a short time with no carbon deposition because the temperature of the reformer is raised by opening the shut-off valve at the start-up time of the system for the supply of nitrogen to the reformer from the downstream side of the desulfurizer. 4 figs.

  20. Effects of ultraviolet rays and acid rain on strength of spider silk; Kumo ito no kyodo ni oyobosu shigaisen oyobi sanseiu no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Kitagawa, M.; Sasagawa, H. [Kanazawa Univ., Ishikawa (Japan). Faculty of engineering; Kawagoe, M. [Toyama Prefectural Univ., Toyama (Japan)

    1995-12-15

    Spider silk, differing to the synthetic fibers yarned at high temperature or using hazardous solvents, is a fiber in the body of animal and the process itself is safe. Again, the silk is made of up protein and is kind to the environment because does not cause pollution even after disposal. Also, it is a material of interest as a strong fiber having high tensile strength reaching to 2000 MPa. Accordingly, spider silk can be taken as an effective industrial material if the mass production of the fiber is possible by genetic engineering. In previous report, the mechanical properties of dragline silk spewed out from the same silk gland as the warp, a kind of silk spewed out by Nephila clavata, so called Jorogumo, were studied. In this report, the deformation behavior of circular net made by Jorogumo and applicability to environmental evaluation are under study, and effect of acid environment and ultraviolet rays on the mechanical properties of spider silk are studied. As a result, it was revealed that ultraviolet rays degraded the spider silk, and further, promoted the degradation when the acid rain acted at the same time. 16 refs., 11 figs.

  1. Effects of ultra-violet ray and aqueous environment on deformation behavior of spider threads; Kumoito no henkei kyodo ni oyobosu hikari oyobi mizu kankyo no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Kitagawa, M.; Katsumi, S. [Kanazawa University, Ishikawa (Japan). Faculty of Engineering; Wako, Y. [Hachinohe Institute of Technology, Aomori (Japan). Laboratory of Food Technology

    1998-01-15

    As a series of the studies on the mechanical properties of spider threads, the effects of ultra- violet rays (UV) and water was investigated using drag lines of Nephila clavata (Jorougumo) and capture threads of Argiope amoena (Koganegumo). It was shown for the effect of water that (1) the drag line was contracted as soon as immersed in water (super contraction), while the capture thread was not so contracted and the viscid droplets attached to it were dissolved in water, and (2) the super contracted drag fine behaved like a capture thread with a j shaped load-draw ratio curve. For the effect of UV, it was found that (1) the degradation due to UV irradiation with short wave length was accelerated more than that with long one and (2) the degree of degradation for each wave length was governed by the integrated irradiation energy of UV. 9 refs., 8 figs.

  2. Binder for solid electrolyte fuel cell stack and its production method; Kotai denkaishitsugata nenryo denchi sutakku no setsugozai oyobi sono seizo hoho

    Energy Technology Data Exchange (ETDEWEB)

    Murata, K.

    1994-08-12

    In general, the interconnector of the solid electrolyte fuel cell stack consists of such materials as lanthanum chromite system ceramics, heat resistant alloy, and nickel felt. A poor deformability of lanthanum chromite system ceramics at a temperature to joint the electrode membrane of unit cell gives rise to an insufficient contact area, resulting in a large electric resistance. This invention solves the problem. The bonding of the unit cell electrode membrane with the interconnector is done by inserting the bonding material which has a high deformability at the bonding temperature as well as a high electric conductivity into their interface, resulting in being able to keep a wide contact area so as to reduce the electric contact resistance. The bonding material is composed of porous ceramics with porosity of 30 - 80% consisting of nickel thermit such as Ni-ZrO2, Ni-A12O3, and Ni-A12O3-MgO plus 0.1 - 10 wt% SiO2. 2 figs., 1 tab.

  3. Syntheses of ferrite/metal composite powders and their magnetic properties. Ferrite/kin30ku fukugo funmatsu no gosei oyobi jiki tokusei

    Energy Technology Data Exchange (ETDEWEB)

    Hiratsuka, N.; Saito, K.; Kobayashi, H.; Mitamura, T. (Saitama University, Saitama (Japan). Faculty of Science and Engineering)

    1993-10-15

    An attempt has been made on synthesizing composite powders composed of Ni/Zn ferrite and Ni/Fe alloy to discuss their magnetic properties. The starting materials are Zn powder, [alpha] -Fe2O3 power, and NiCl2 powder. Mixtures of these powders at a certain mol ratio were sintered under temperatures from 400[degree]C to 600[degree]C in an Ar gas atmosphere. This heating process caused a reaction with Zn-reduced thermit, resulting in composite powders. This reaction is inferred to develop three accompanying reactions starting at around the melting point of Zn of 400[degree]C : generation of spinel phases and Ni, and then a reducing reaction of [alpha] -Fe2O3 [yields] Fe3O4 [yields] FeO [yields] [alpha] -Fe as a result of temperature rise or increase in the Zn amount. It is important to control the reactions by adjusting the starting material ratio and heating temperatures. The highest saturated magnetization appears when a mixture with a mol ratio of [alpha] -Fe2O3:NiCl2:Zn: at 1.0:0.5:1.0 is heated at 550[degree]C for two hours. A saturated magnetization value of 89.7 emu/g and a coercive force of 78.6 Oe were obtained. Two phases of Ni/Zn ferrite with larger particles and Ni or NiFe2O4 with smaller particles are observed when the Zn amount is 0.5. However, no larger particles are found if the Zn amount is 1.0. 4 refs., 6 figs.

  4. Analysis of the inter-relationship of pedestrian leg and pelvis injuries; Hokosha no kyakubu oyobi yobu shogai no sogo kankei

    Energy Technology Data Exchange (ETDEWEB)

    Matsui, Y. [Japan Automobile Research Institute Inc., Tsukuba (Japan)

    2000-03-01

    This paper elucidated correlations of pedestrian leg and pelvis injuries, and made a proposal, based on the leg injury occurrence mechanism, on the specifications for leg impacter used in the pedestrian leg protection testing method presently discussed in EEVC. In the analysis, using the pedestrian injury information database of 316 pedestrians owned by the U.K.' Major Trauma Outcome Study, the occurrence ratio of leg, pelvis and thigh of pedestrians was examined limiting the level of thigh injury to bone fracture. As the result of studying correlations between leg injury and pelvis injury, the pelvis or the thigh tends not to break in case tibia breaks, and the trend is markedly seen in case both tibia and fibula break. As to correlations between injuries at legs, there appear no bone fractures of knee joints and ankles in case tibia breaks. Accordingly, the paper made a proposal that the specifications for leg impacter should be provided with the structure by which the tibia fracture can reappear. (NEDO)

  5. Ring halogenation of 1,8- and 4,5- dialkylisoquinolines. 1,8- oyobi 4,5- dialkylisoquinolines rui no kaku halogen ka hanno

    Energy Technology Data Exchange (ETDEWEB)

    Niimi, A.; Saito, T.; Tanaka, F.; Nagao, Y.; Abe, Y.; Misono, T. (Science Univ. of Tokyo, Tokyo (Japan). Faculty of Science and Technology)

    1991-09-10

    In this paper, synthesis of halogenoisoquinoline by nucleus substituting halogenation was investigated. Since syntesis of isoquinoline with an alkyl group at its peri-position is difficult, it has not been done often, but here, among these syntheses, halogenation of 1,8-dimethylisoquinoline 1 and 5,6-dihydro-4H-benzo bdec isoquinoline 2 was made. For halogenation, two kinds of methods were studied, namely the method with free bromine and iodine in sulfuric acid in the presence of silver sulfate and the method with N-bromo and N-chlorosuccinimide in sulfuric acid. As a result, in either case, concerning 1 above, the 5-position was halogenated, and concerning 2 above, the 9-position was halogenated, hence it was elucidated that the positions were halogenated which were similar to the case of the halogenation of alkylquinolines such as 8-methylquinolines with the 5- and 7-positions to be halogenated. 11 refs., 2 figs., 3 tabs.

  6. Effect of heater with plasma-sprayed mullite coatings on heating by far-infrared radiation. Mullite himaku wo keiseishita kanetsutai no ensekigaisen hosha tokusei oyobi kanetsu koka

    Energy Technology Data Exchange (ETDEWEB)

    Ikeda, M.; Nishino, A.; Suzuki, T. (Matsushita Electric Industrial Co. Ltd., Osaka (Japan))

    1993-09-30

    Effects of a quartz tube heater coated with plasma-sprayed mullite on the far-infrared radiation heating was investigated by means of spectral energy distribution in wavelength ranging from 1.4 to 14[mu]m, and color difference and weight loss observations before and after toasting of bread. Mullite material was sprayed on the opaque quartz tube substrate using an 80kW plasma-spray apparatus, to make a coating with thickness of 50[mu]m. The mullite coating on the quartz tube heater showed high far-infrared radiation. It was found that the mullite coating exhibited good wavelength change characteristics, and the spectral energy increased by about 7%. It was also illustrated that for the heating by the heater with mullite coating, the heating efficiency was improved during toasting of bread. As a result, the heater coated with mullite showed a decrease in heating time and also provided energy saving of around 12% during toasting of bread. 8 refs., 5 figs., 1 tab.

  7. Questionnaire investigation for the earthquake in Honjo city and Yazawa city, Akita Prefecture; Jishin ni kansuru ishiki chosa (Akitaken Honjoshi oyobi Yuzawashi ni okeru anketo kara)

    Energy Technology Data Exchange (ETDEWEB)

    Nogoshi, M. [Akita University, Akita (Japan). College of Education; Kabutoya, S.

    1996-05-01

    Consciousness for the earthquake was investigated by questionnaire surveys made in Honjo City and Yuzawa City, Akita Pref. in October 1995 twelve years after the Nihonkai Chubu Earthquake (M=7.7) in May 1983. The survey was conducted in terms of 27 items including personality, memory, knowledge/interest, psychology/action, mental attitude/preparations, wishes for researchers and administration, etc. Also included were the items on the Great Hanshin-Awaji Earthquake and the earthquake blank areas. The number of distributed questionnaires and the recovery rate of them are 1500 and 79.2% in Honjo City, and 1700 and 84.7% in Yuzawa City. From the survey, it was found that people have a lot of knowledge of and high interest in the earthquake and well remember it, and a lot of people know of tsunami, liquefaction phenomena, and the earthquake blank area. Further, they are afraid of earthquakes and think of their actions to be taken in case of earthquake. However, most people are little prepared for earthquakes. Important future subjects were suggested for the study of disaster prevention measures. 13 figs.

  8. House-dust mite and mite-and pet-allergens in indoor environment; Dani oyobi dani-allergen, pet-allergen no jittai

    Energy Technology Data Exchange (ETDEWEB)

    Irie, T. [Shinshu Univ., Matsumoto, Nagano (Japan)

    1998-05-31

    In this paper, the actual state of mite and mite-allergen, and the actual state of pet-allergen that the researches thereof proceed gradually in recent years are described. The following findings are obtained as the results of the actual state investigations. In respect to the mite-allergen, airborne mite, particularly I with high allergen activity shows high concentration from fall to winter. The reasons thereof are considered from two aspects, I.e., the fragmentation and suspension of mite-allergen, and the decrease of ventilation frequency, while it can also be explained from a fact that the fit of infantile asthma is most frequent during a period from October to November. Mite-allergen contained in futon dust is about 10 times more than that contained in floor dust. In respect to pet-allergen, although the indoor accumulative amount and airborne concentration of main pet-allergen such as cat-, and dog-allergen varies greatly depending on whether pet is kept indoor or outdoor, the quantities of dog- and cat-allergen are almost of the same order, but 2 to 3-order higher than the quantity of mite-allergen. 9 refs., 9 figs.

  9. Biological markers in bitumen extracts and a crude oil from the Mitsuke oil field. Niigataken Mitsuke yuden core shiryo oyobi gen prime yuchu no seibutsu shihyo kagobutsu

    Energy Technology Data Exchange (ETDEWEB)

    Kaneko, N.; Sakata, S. (Geological Survey of Japan, Tsukuba (Japan)); Machihara, T. (Japan National Oil Corp., Tokyo (Japan))

    1990-07-27

    The authors examined the distributions of steroid and triterpenoid hydrocarbons in 21 borehole samples and a crude oil sample from the Mitsuke oil field by gas chromatography-mass spectrometry (GC/MS), and considered the maturation processes of organic matters. The distributions of carbon isotope steroids indicate that the Shiiya and Nishiyama Formations are more enriched in C {sub 29} steroids, which are the main constituents of the terrestrial higher plants, than the Teradomari Formation. Maturity parameters of hopane and steroid tend to show higher values in the Shiiya and Nishiyama Formations than the uppermost Teradomari Formation. The Teradomari Formation lies in immature state than the lower formations. The Mitsuke crude oil has more evolved values of maturation than bitumen extracts of the Teradomari Formation just above the oil reservoir horizon. The authors considers that the Mitsuke crude oil was generated in the lower formations beneath the lower Teradomari Formation and laterally migrated and accumulated into the reservoir in the lower horizon. 33 refs., 10 figs., 3 tabs.

  10. 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.

  11. Numerical simulation and experiment of supersonic jet impingement on a plate; Heiban ni shototsu suru choonsoku funryu ni kansuru suchi kaiseki oyobi jikken

    Energy Technology Data Exchange (ETDEWEB)

    Tsuboi, N. [Tokyo Univ. (Japan)] Hayashi, K. [Aoyama Gakuin Univ., Tokyo (Japan)] Fujiwara, T. [Nagoya Univ. (Japan)] Arashi, K. [Kumamoto Inst. of Tech., Kumamoto (Japan); Kodama, M. [Mitsubishi Heavy Industries Ltd., Tokyo (Japan)

    1998-09-05

    A large-sized rocket, such as the H-II rocket used in recent years ejects a high-temperature high-pressure jet from the jet nozzle of the rocket to obtain a required level of thrust at the launching. Therefore, the protection of objects such as the rocket body, reflectors and the launcher against the high-temperature high-pressure jet is a problem. In this study, the clarification of the physical phenomenon is attempted by both numerical analysis and experiments in regard to the problem of the impingement of the axisymmetric supersonic jet upon the plate under the atmospheric and non-high-temperature underexpansion conditions. In this report, and analysis of a non-viscous flow which was made so as to examine the effect of the compressibility of a shock wave structure is described. Experiments were then conducted so as to qualitatively and quantitatively examine the results of the numerical analysis. A stagnation bubble forming and breaking mechanism and a complicated structure of the shock-shock interaction were then studied by a numerical analysis by changing the position of the plate. 14 refs., 20 figs., 2 tabs.

  12. Toxicity bioassay by using sea urehin eggs for sea water and chemicals. Kaisui oyobi kagaku busshitsu no uniran ni yoru dokusei kentei

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, N. (Doshisha University, Kyoto (Japan))

    1992-10-01

    The present paper explained the laboratory toxicity bioassay of sea water and chemicals by using sea urchin eggs and field assay for the environmental assessment. The experiment evaluated the observation result of sea urchin eggs and embryos in the cleavage and pluteus stages through the new marine pollution ranking IV. The new ranking was more sensitive in bioassay and simpler than the previous one. As a result of bioassay by sea urchin eggs for the pollution investigation in the Inland Sea of Japan, sea water was considerably polluted around the principal industrial zones. The degree of such a pollution was found to be related through seabed water with the existence of heavy metals in mud on the seabed. There is a foreign example of having investigated the influence on the development from the egg fertilization to the pluteus growth of sea urchins by test water collected on both the seabed and surface in an offshore disposal area of waste. The influence of heavy metals and other compounds was remarkable on the lowering in fertilization ratio of eggs which had not been fertilized yet and cell destruction of sea urchins. The present bioassay can express quickly, simply, sensitively and quantitatively the influence of marine pollution by specific organisms. 47 refs., 4 figs., 8 tabs.

  13. Crush characteristics and HIC values in front windshield areas in pedestrian head impacts; Joyosha zenmen mado garasu oyobi sono shuhenbu no shogeki tokusei to tobu shogaich

    Energy Technology Data Exchange (ETDEWEB)

    Matsui, Y.; Ishikawa, H. [Japan Automobile Research Institute Inc., Tsukuba (Japan)

    2000-04-01

    An experimental research was conducted to grasp pedestrian head protective performance in pedestrian-vehicle accident. In the recent accidents, pedestrian head collided with vehicle more at the front windshield than at the bonnet top. In the experiment, by colliding headform with the vehicle standstill, head injury coefficients (HIC) in impacts to front windshield and the periphery were measured. As to the headform, the main body made of phenol resin is covered by rubber skin with 7.5mm thickness. The diameter is 165mm, and the total weight is 4.8kg. HIC was obtained by a triaxial accelerator installed around the gravity center of the sphere. As a result of the experiment, the following were found out. The HIC value of the front windshield becomes 1000 or below when the headform is more than the radius of the headform away from the window frame. At the window frame, HIC in all the pillar area is high, but HIC at the central part of the roof rail becomes 1000 or below. The relation between HIC and dynamic displacement is almost the same both in the bonnet top and the front windshield. (translated by NEDO)

  14. Dissemination of information and evacuation plan in volcanic disaster of Mt. Fugen in Unzen; Unzen Fugendake no kazan saigai ni okeru joho dentatsu oyobi hinan taisaku

    Energy Technology Data Exchange (ETDEWEB)

    Takahashi, K.; Fujii, M. [Nagasaki University, Nagasaki (Japan). Faculty of Engineering

    1997-06-20

    The paper investigated the information dissemination system and evacuation plan in the volcanic disaster of Mt. Fugen in Unzen of Nagasaki prefecture. The measures against the pyroclastic flow were not taken because of too much sticking to the scenario 198 years ago. The information dissemination and evacuation system had not well been prepared and had to be dependent upon the man power. For working out disaster prevention measures, it is necessary to have members from cities and towns join from the beginning. Informing the danger of the pyroclastic flow of people by the Coordinating Committee for the Prediction of the Volcanic Eruption of the Meteorological Agency was not thoroughly and widely made. The pyroclastic flow hazard map was effectively used for the first time for the setting up of warning areas, but it is necessary to make it public prior to the disaster. Since the headquarters for dealing with the disaster which advise evacuation and set up warning areas was inexperienced, there was confused information at the beginning. The prior detailed simulation by the institutes concerned and experts is indispensable. At present, watching and data collection/dissemination system are remarkably arranged, and the human damage is also eliminated. In addition to hardware such as watch camera and wire sensor, there are a lot of problems such as organization, preparation of activity manuals, unification of cooperation/connection among wide areas/organizations. 14 refs., 8 figs., 20 tabs.

  15. On-site experiments of ROV `DELTA` and its speed control; Eiko jiko ryoyogata ROV `DELTA` no kaijo jikken oyobi speed seigyo

    Energy Technology Data Exchange (ETDEWEB)

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

    1998-09-04

    `DELTA` developed for survey of the sea bottom over a wide are can be operated both as a towed and a self-propulsive vehicle. The shape is similar to a delta wing airplane and the vehicle has two propellers and weight shift apparatus as actuators. In the towing mode only the depth is controlled by the trim weight. In the self-propulsive mode the direction is controlled by the difference between the right and left thruster`s thrust and the depth is controlled by the pitch moment generated by the change of the thrust. The motion control is mainly done by the thrusters and the trim weight to maintain static balance. Field experiments were carried out to confirm the performance of the ROV, and some successful results are shown. The experiments suggested that speed control is essential to operate the ROV when the mother ship follows on the ROV. Tank tests on speed control were conducted and it was found that {+-}20% speed change from the nominal speed was possible. 4 refs., 22 figs.

  16. Evaluation of the flame velocities of hydrocarbons and oxygenates using a gasoline engine; Gasoline engine ni yoru tanka suiso oyobi gansanso kagobutsu no kaen sokudo hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Hashimoto, K.; Akasaka, Y. [JOMO Technical Research Center, Tokyo (Japan)

    1998-10-15

    Study was made on the relation between chemical structures of fuels and flame propagation velocities in gasoline engines. Recently lean burn engines have been developed, however, their combustion is largely unstable for every combustion cycle under a lean burn condition. A decrease in thermal efficiency and an increase in unburnt hydrocarbon emission due to reduction of a combustion rate are also major problems. Increasing a flame velocity in engines is one of their solutions. As the study result, flame velocities of light olefin and naphthene were higher, while those of isooctane, MTBE and ETBE were lower. A heat production period and time to dQmax were shorter in light olefin and naphthene, while longer in isooctane, MTBE and ETBE. Substances with higher flame velocities had higher thermal efficiencies under a lean burn condition because reduction of a thermal efficiency due to dissociation from Otto cycle is small. THC concentration in emission gas was lower in 4-methyl-1-pentane, 2-methyl-2-butane and cyclopentane with faster flame velocities, while higher in isooctane with the lower velocity. 3 refs., 8 figs., 1 tab.

  17. Development of long life pulse power supply for copper vapor laser. Do joki laser yo chojumyo reiki dengen no kaihatsu. ; Saidai shutsuryoku unten oyobi laser hasshin

    Energy Technology Data Exchange (ETDEWEB)

    Fujii, T.; Goto, N.; Nemoto, K. (Central Research Inst. of Electric Power Industry, Tokyo (Japan))

    1990-04-01

    Long life pulse power supply for Cu vapor laser was developed. This is composed of the pulse generation circuit and the pulse compression circuit. Current pulse of 10 mu second pulse width is generated in the pulse generating circuit by switching electric charge on the condensor charged through GTO (gate turn off) thyristors. The pulse compression circuit makes the current pulse fast to 300ms utilizing the difference of inductance at the saturation and the unsaturation on the circuit which uses a reactor having saturable property using a ferromagnetic substance for the core as the magnetic switch. The operation was carried out at the GTO generasting full power. Co base amorphous alloy of low loss was used for the core of saturable inductor and the circuit efficiency of 77% could be obtained by suppressing the heat generation in core even at 4,000Hz operation. The full output power of 8.2kW was possible which corresponds to 100W class laser oscillation. Repeated Cu vapor laser oscillation of 30W succeeded at the condition of 4,000Hz and power supply output of 5.9kW. 7 refs., 21 figs., 8 tabs.

  18. Composite of a fluorine compound and a hydrogen storage alloy; Fusso kagobutsu/suiso kyuzo gokin fukugotai oyobi sono seizo hoho

    Energy Technology Data Exchange (ETDEWEB)

    Kiyokawa, K.; Takashima, M.; Yonezawa, S.

    1997-04-22

    This invention aims to present a composite of a fluorine compound and a hydrogen storage alloy which has water repellency and absorbs hydrogen effectively. This invention presents a composite of a fluorine compound and hydrogen storage alloy with a coating of a metal containing fine particles of a fluorine resin plated on the surface of hydrogen storage alloy particles. The plated metal is selected from a group of Ni, Cu, Co, Ni-P, Ni-W, Ni-W-P, Ni-B, Ni-W-B, Cu-Ni, Cu-P, Co-P, Co-B and Co-W. The plated coating is a porous coating to permit the diffusion of hydrogen. The composite of a fluorine compound and a hydrogen storage alloy is produced by forming of the plated coating of copper or copper-containing alloy containing fine particles of the fluorine resin on the hydrogen storage alloy with a method of electroplating in a phosphoric acid bath with dispersed fine particles of the fluorine resin. 2 figs.

  19. Effects of fuel properties and oxidation catalyst on diesel exhaust emissions; Keiyu seijo oyobi sanka shokubai no diesel haishutsu gas eno eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Aihara, S.; Morihisa, H.; Tamanouchi, M.; Araki, H.; Yamada, S. [Petroleum Energy Center, Advanced Technology and Research Institute, Tokyo (Japan)

    1997-10-01

    Effects of fuel properties (T90 and Poly-Aromatic Hydrocarbons: PAH) and oxidation catalyst on diesel exhaust emissions were studied using three DI diesel engines and two diesel passenger cars. (IDI engine) PM emissions were found to increase as T90 and PAH increased and could be decreased considerably for each fuel if an oxidation catalyst was installed. 5 refs., 9 figs., 3 tabs.

  20. Installation of new slimtube and core flooding apparatus in our laboratory; Shinki surimu chubu oyobi koa raddeingu jikken sochi no donyu

    Energy Technology Data Exchange (ETDEWEB)

    Nakamura, T.; Akita, Y.; Sato, Y.; Taya, Y. [Japan National Oil Corp., Tokyo (Japan)

    1998-10-30

    Slimtube experimental equipment, which measure the minimum miscibility pressure (MMP), is updated this year. The equipment is assembled in TRC. The equipment becomes smaller, and make it possible to pump oil and gas directly into the slim tube, which is also updated. A core flooding system for gas flood is also introduced in this year. Now we can measure the relative permeability of oil/water and oil/gas using the core flooding system made by Coretest systems, inc. (author)

  1. Wind tunnel testing and numerical calculation on 2-dimensional airfoils in the ground effect; Jimen koka wo ukeru nijigen`yoku no fudo jikken oyobi suchi keisan

    Energy Technology Data Exchange (ETDEWEB)

    Nitta, K. [Nagoya University, Nagoya (Japan). Faculty of Engineering

    1995-11-05

    The aerodynamic characteristics of 2-dimensional airfoils in proximity to the ground are examined. The purposes of this paper are: (1) aerodynamic research of the steady pressure distribution in proximity to the ground, (2) suggestion of the methods to simulate the ground effect and 2-dimensionality in the wind tunnel testing, (3) examination that it is reasonable to use the finite difference method based on the small perturbation velocity potential equation in the ground effect problem. The pressure distribution changes according to the height, the ways of which are different between a flat plate airfoil and a NACA0012 airfoil. The effect of viscosity is also examined through numerical calculations. 13 refs., 15 figs., 1 tab.

  2. Laboratory investigation on streaming potential for sandy soil and weathered rock; Shitsunai jikken ni yoru sashitsu jiban oyobi fuka ganban no ryudo den`i no kento

    Energy Technology Data Exchange (ETDEWEB)

    Sato, H.; Shima, H. [OYO Corp., Tokyo (Japan)

    1996-10-01

    Laboratory experiment on sandy soil and weathered rock was conducted to clarify the generation mechanism of streaming potential due to underground fluid. Streaming potential is caused by underground fluid flow, namely by fluid flow in porous substances as electrokinetic phenomenon. In experiment, Inagi sand, Toyoura sand and strongly decomposed weathered granite were used. In Inagi and Toyoura sands, positive streaming potential was observed downstream in fluid flow. Streaming potential could be nearly determined as primary function of fluid velocity, and generated streaming potential increased with fluid resistivity. Streaming potential was higher in Inagi sand than Toyoura sand, probably depending on hydraulic radius, size of bleeding channel, and conductivity of sand surface. In weathered granite, negative streaming potential was measured. In the case of positive {zeta} potential, negative streaming potential is theoretically generated downstream in fluid flow. This experiment suggested possible generation of negative streaming potential in some kinds of ground. 2 refs., 6 figs., 1 tab.

  3. Stability of sheet pile supported excavations through the seepage failure analysis; Yaita ni shijisareta howa sashitsu jiban no shinto hakai oyobi kussaku antei kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kodaka, T. [Kyoto University, Kyoto (Japan); Takaine, T. [Asanuma Corp., Osaka (Japan); Asaoka, A. [Nagoya University, Nagoya (Japan)

    1998-06-21

    The stability of sheet pile supported excavation in a sandy ground is studied using a technique that deals with soil pressure and seepage simultaneously. In the study, a seepage failure experiment is conducted using a model ground provided with self-sustained sheet piles for the investigation of relationship between seepage and the stability of ground being excavated. Next, an excavation stability analysis is conducted on support piles linked to the field of seepage, for which a rigid plastic finite element method in which three linear constraints are added to the field of velocity is operated, the three constraints being `constant distance, `constant angle,` and `constant relative position.` The findings are outlined below. A comparison is made between a case with movable sheath piles and a case with immovable sheath piles in terms of critical water level in a horizontal ground. The critical water level in the case with movable sheath piles is 1/2 that in the case with immovable sheath piles under completely drained conditions and is as low as 1/5 that under utterly undrained conditions. A comparison is made between the above-said two cases in terms of critical excavation depth into the ground. Again, the critical excavation depth in the case with movable sheath piles is 1/2 that in the case with immovable sheath piles under completely drained conditions and is as low as 1/5 that under utterly undrained conditions. 6 refs., 18 figs., 6 refs.

  4. Influence of catalytic activity and reaction conditions on the product distribution in coal liquefaction; Sekitan ekikayu no seiseibutsu bunpu ni taisuru shokubai kassei oyobi hanno joken no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Hasuo, H.; Sakanishi, K.; Mochida, I. [Kyushu University, Fukuoka (Japan). Institute of Advanced Material Study

    1996-10-28

    The NiMo sulfide supported on Ketjen Black (KB) was more effective and yielded lighter oil products containing light fractions with their boiling point below 300{degree}C during the two stage liquefaction combining low temperature and high temperature hydrogenation the conventional NiMo/alumina catalyst and FeS2 catalyst. Although the NiMo/alumina yielded increased oil products during the two stage liquefaction, the lighter oil fractions did not increase and the heavier fractions increased mainly. This suggests that the hydrogenation of aromatic rings and successive cleavage of the rings are necessary for producing the light oil, which is derived from the sufficient hydrogenation of aromatic rings using catalysts. For the two stage reaction with NiMo/KB catalyst, it was considered that sufficient hydrogen was directly transferred to coal molecules at the first stage of the low temperature reaction, which promoted the solubilization of coal and the successive hydrogenation at the high temperature reaction. Thus, high activity of the catalyst must be obtained. It is expected that further high quality distillates can be produced through the optimization of catalysts and solvents at the two stage reaction. 1 ref., 4 figs., 1 tab.

  5. Estimation for origin of coals on biomaker analysis; Jinko sekitan oyobi tennen sekitan no biomaker bunseki ni yoru sekitan kigen busshitsu no suitei

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-10-28

    In order to study coal production processes, an estimation study was carried out on coal originating materials by using biomaker analysis. Test samples are original coals collected directly from a mine in Hokkaido (not having been subjected cleaning). Mixing and solvent extraction were performed after pulverization, and then tests were given on saturated hydrocarbon components divided by using a silicagel column chromatograph for the present study. It can be known from n-alkane distribution in the coal that low molecular alkane increases with increasing degree of coalification. Artificial coal made by wet-heating Metasequoia leaves contains only little n-alkane. Diterpenoid compound exists in the Taiheiyo and Akabira coals. Tetra-cyclic diterpernoid is contained abundantly in subtropical coniferous trees, serving as a parameter for warm environment. The compound is contained also in the Fushun coal, but not in Indonesian coals. Hopanoid constitution shows very high similarity, but H/C atomic ratio may vary largely even if the coalification is at the same degree. This is likely to be caused from difference in originating materials. Hopanoids are bacteria attributed substances, whose activities are not affected by the originating materials. 2 figs., 1 tab.

  6. 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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-12-31

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

  8. In-situ testing of the liquefaction potential of soft ground using an s-wave vibrator and seismic cones. Part 1. System, concept and preliminary test result; S ha vibrator oyobi seismic cone wo mochiita gen`ichi jiban ekijoka potential no hyoka. 1. System kosei oyobi genchi yosatsu keisoku kekka

    Energy Technology Data Exchange (ETDEWEB)

    Inazaki, T. [Public Works Research Institute, Tsukuba (Japan)

    1996-05-01

    For the purpose of evaluating liquefaction in situ, it was proposed that an S-wave vibrator designed to serve as a source in a reflection exploration method be utilized as a strong vibration generating source, and measurement was conducted in this connection. Equipment used in this test included an S-wave vibrator, static cone penetration machine, and various measuring cones. A multiplicity of measuring cones had been inserted beforehand into the target layers and comparison layers, and changes upon vibrator activation were measured. On a dry bed of the Tonegawa river, a 40m{sup 2} field was set up, and 41 cone penetration tests were conducted, with the cones positioned zigzag at 5m intervals. In this way, the ground structure was disclosed from the surface to the 10m-deep level. For the measurement, 3-component cones and seismic cones were placed at prescribed depths, and fluctuations and waveforms presented by pore water pressure at each level were determined with the vibration source changing its place. It was found that the changes in the pore water pressure exposed to vibration assume characteristic patterns corresponding to the conditions of vibration application. 5 figs., 1 tab.

  9. Closed recirculating culture of scorpaenid fish and puffer fish. Examination of nitrogen-excretion rate, proper stocking density and optimum temperature, and rearing experiments; Junkan roka hoshiki ni yoru oniokoze oyobi torafugu yogyo gijutsu no kaihatsu. Chisso haishutsuryo, tekisei shuyo mitsudo, koteki suion no kaimei oyobi shiiku shiken

    Energy Technology Data Exchange (ETDEWEB)

    Furuta, T.; Kikuchi, K.; Iwata, N.; Honda, H. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1997-03-01

    Nitrogen excretion rate, proper stocking density, and optimum temperature for growth were examined on scorpaenid fish and puffer fish to establish closed recirculating culture techniques. Nitrogen excretion rate of scorpaenid fish about 5, 10 and 150 g in body weight was 20, 28 and 10 mg-N/100 g/day after feeding, respectively. Necessary volume of net filter medium to produce 1 kg of fish was estimated to be 1 liter. Growth rate and survival rate of fish were not affected by rearing density of 10 to 30 kg/m{sup 2}-bottom area of cage. The optimum temperature for the growth was 27degC regardless of development stage. Nitrogen excretion rate of puffer fish about 23 g in body weight was 60 mg-N/100 g/day after feeding. Necessary volume of net filter medium to produce 1 kg of fish was estimated to be 2 liters. Growth rate of fish was not affected by rearing density of 6 to 50 kg/m{sup 3}-volume of cage. However, a survival rate was slightly decreased as the rearing density increased. For the fish of 3 g in body weight, growth at 18degC was significantly inferior to those at 21, 24 and 27degC. For the fish of 54 g, growth at 25degC was superior to those at 15, 20 and 30degC. Survival rate of both sizes of fish was decreased as the temperature increased. 59 refs., 9 figs., 9 tabs.

  10. Study on possibility of management with combining the generating electricity by photovoltaic device, pumped water station and agriculture, fishery and the way to improve an ability of protection for flood at planning reclaimed land of Isahaya bay; Isahayawan kantaku yoteichi de taiyoko hatsudensho, yosui hatsudensho oyobi nogyo, gyogyo wo kumiawaseta keiei oyobi suigai boshi noryoku wo takameru hoho no kanosei no kento

    Energy Technology Data Exchange (ETDEWEB)

    Ueda, A.

    1998-09-30

    Study was made on the possibility of (1) combined management of PV power station, pumped water power station, agriculture and fishery on rafts floating on dug inland waters by modifying the present reclaimed land plan of Isahaya bay, (2) efficient agriculture and fishery management by industrial techniques, (3) enhancement of a flood protective capacity by preservation of the existing tideland, and (4) environment preservation by tideland formed by artificial tidal action. Outlines of the modified plan are as follows: (1) moving the inside tideland of the previously completed tidewall to the outside for preservation, (2) digging a tideland area by 1m, (3) installing valves and propeller type motor-generators on the tidewall, (4) floating rafts for PV power generation, fishery and agriculture, (5) constructing a factory for rice-planting, weeding, harvesting, roe collection, delivery and maintenance of PV cell rafts, and (6) enhancing the flood protective capacity by the larger inland waters than an original regulating reservoir and use of the motor-generators for drainage pumps. 7 refs., 7 figs.

  11. Characteristics of combustion and heat transfer of excess enthalpy flames stabilized in a stagnation flow. 2nd Report. ; Heat flux at high flow rate and effects of Lewis number. Yodomi nagarechu ni anteika sareta choka enthalpy kaen no nensho oyobi etsudentatsu tokusei. 2. ; Koryuryo ni okeru netsuryusoku oyobi Lewis su no koka

    Energy Technology Data Exchange (ETDEWEB)

    Ito, S. (Daido Institute of Technology, Nagoya (Japan)); Asato, K.; Kawamura, T. (Gifu University, Gifu (Japan). Faculty of Engineerirng); Mazaki, T. (Daido Senior High School, Nagoya (Japan)); Umemura, H. (Mitsubishi Electric Corp., Tokyo (Japan))

    1993-08-25

    For the purpose of developing small-sized combustors of high heat transfer efficiency for household and business uses, a study has been carried out on the characteristics of an excess enthalpy flame stabilized in a stagnant flow, the maximum heat flux utilizable from flames through a heat receiver wall, the heat transfer characteristics near the extinction limits, and the effects of Lewis number (Le). Even when heat is drawn from the heat receiver wall in the downstream of flames, stable flames are kept until they extremely approach the heat receiver wall by the effect of preheating for lean methane-air flames of Le[approx equal]1.0 and lean propane-air flames of Le>1.0 and by the effect of preheating and Lewis effect for lean hydrogen-air flames of Le<1.0. In any flames, therefore, the heat flux to the heat receiver wall increases abruptly with the increase of stagnant velocity gradient and thereby the heat transfer characteristics at the heat receiver wall are improved. Heat transfer in the cases where flames exist on the outside and inside of the temperature boundary layer depend not on the thickness of the temperature boundary layer but on the position of flames. 6 refs., 9 figs.

  12. 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)

  13. 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)

  14. 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.

  15. 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)

  16. 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.

  17. 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)

  18. 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)

  19. 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.

  20. 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.

  1. 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)

  2. 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)

  3. 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)

  4. 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.

  5. 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.

  6. 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.

  7. 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)

  8. 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)

  9. 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.

  10. 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)

  11. Achievement report in fiscal 1999 on commissioned research project. 'Model project for facilities to effectively utilize wastes from industrial complexes in Thailand' Project for 1999 Volume 2; 1999 nendo seika hokokusho. Tai ni okeru kogyo danchi sangyo haikibutsu yuko riyo setsubi moderu jigyo - 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    With an objective to reuse industrial wastes and effectively utilize them as a petroleum replacing energy resource, and attempt to reduce consumption of fossil fuel in Thailand where increase in discharge of industrial wastes is estimated, a model project for facilities to effectively utilize wastes from industrial complexes has been carried out. This paper reports the achievements in fiscal 1999. Specifically, the project calls for incineration in fluidized bed incinerators of industrial wastes discharged from factories in industrial complexes possessed by the Industrial Estate Authority of Thailand (IEAT), recovery of waste heat from waste heat recovering boilers to generate process steam, which is supplied to the factories in the complexes. The current fiscal year, which is the first current year of the project, has put into order the operations shared by Japan and Thailand, compiled the various procedures and schedules into the form of appendices to the agreement, and executed signing of the agreement. Thereafter, the Japanese side has carried out decision on the specifications of the facilities, the basic designs, the detailed designs of facilities to be arranged by Japan, and the fabrication of some of the devices according to the descriptions of the agreement appendices. The volume 2 summarizes the inspection reports in the referential materials. (NEDO)

  12. FY 1999 report on the results of the contract project 'The model project for facilities for effective utilization of industrial waste at the industrial complex in Thailand.' Separate Volume 4 - FY 1999 project; 1999 nendo seika hokokusho. Tai ni okeru kogyo danchi sangyo haikibutsu yuko riyo setsubi moderu jigyo - 4

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the purpose of reducing the consumption of fossil fuel by recycling industrial waste for effective use as petroleum substituting energy in Thailand where the amount of industrial waste is expected to increase, a model project on facilities for effective use of industrial waste at the industrial complex was carried out, and the FY 1999 results were reported. Concretely, the industrial waste generated from each plant at the industrial complex owned by IEAT is to be incinerated in fluidized bed incinerator, and the process steam is to be generated by recovering waste heat by waste heat recovery boiler and to be supplied to plants within the complex. In this fiscal year, the first year of the project, the attachment to the agreement was prepared in terms of the allotment of the project work between Japan and Thailand, various kinds of gist, schedules, etc. and signed. After that, the following were conducted at the Japan side according to the attachment to the agreement: determination of the basic specifications for facilities, basic design, detailed design, manufacture of a part of the equipment, etc. Separate Volume 4 included the results of the inspection of the tank, pump, blower, etc. (NEDO)

  13. Environment-friendly type energy and coordinated community development project. Feasibility study for industrialization of high efficiency waste-fired power generation system (industrial refuse derived fuel and gas turbine combined type); Kankyo chowagata energy community keisei sokushin. Kokoritsu haikibutsu hatsuden (sangyo RDF GT fukugogata) jigyoka FS chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    High efficiency power generation, which is useful for promoting the environment-friendly type energy and coordinated community, is investigated by combining a steam turbine power generation system using the PS-RDF (paper sludge-refuse derived fuel) and a gas turbine (GT) combined cycle. Industrialization plan for processing PS in low cost has been made to ensure the profitability by participating the wholesale power supply under the law of electric power industry. This combined system is similar to the so-called super power generation using municipal garbage, but the lower temperature of steam from GT waste heat boilers (WHB) is super-heated by the flue gas from RDF boiler, which is called advanced power generation system (A.S.S.). The total power generation capacity is 149,000 kW, which consists of three 35,000 kW units of GT and one 44,000 kW unit of steam turbine. When comparing the combined system (A.S.S.) and usual one with the independent installation of the RDF steam power generation system and a GT combined cycle, the A.S.S. provides the repowering efficiency of 7,600 kW output with exactly the same quantity of fuel input as usual one. 71 figs., 31 tabs.

  14. Environment-friendly type energy and coordinated community development project. Feasibility study for industrialization of high efficiency waste-fired power generation system using general and industrial RDF; Kankyo chowagata energy community keisei sokushin. Kokoritsu haikibutsu hatsuden (ippai RDF sanpai riyo) jigyoka FS chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    This report presents the feasibility study on the waste power generation which is based on co-firing of the solidified fuel, RDF, obtained from general waste from 30 municipalities in Kochi Prefecture with combustible industrial waste. To maximize the power generating efficiency, the turbine inlet vapor condition is set to around 40 atg/400 centigrade. A bag filter is used for the exhaust gas treatment. A rotary kiln type or a fluidized-bed type is used for the incineration of RDF with industrial waste. The rotary kiln is provided with a stoker for post-combustion thereby supplementing the defect that is easy to cause an imperfect combustion. Additionally, some manufacturers make the rotary combustor of a water-wall construction fit for practical use, thereby further improving the rotary kiln. For the fluidized-bed furnace, the in-layer circulation type is made fit for practical use, thereby improving a stir effect. The power generation cost is estimated at 17.9 to 20.4 yen/kWh. Ten percent decrease of the facility cost by the government support can reduce the power generating cost by 1 to 2 yen/kWh. The increase of 1,000 yen/t of the industrial waste disposal fee can reduce the power generating cost by 0.6 to 0.8 yen/kWh. 19 figs., 26 tabs.

  15. Report on a project to support promotion of forming an environmentally friendly energy community. Survey on business feasibility of electric power generation utilizing combustible wastes solidified fuel in the Kishu and Kumano living area; Kankyo chowagata energy community keisei sokushin hojo jigyo chosa hokokusho. Kishu Kumano seikatsuken'iki ni okeru kanensei haikibutsu kokeika nenryo riyo hatsuden jigyo no jigyoka kanosei chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Surveys and discussions were given on business feasibility of a wide area RDF power generation system in the Kishu and Kumano living area. The discussions dealt with as wide area as transcending prefectural borders and including the southern parts of Mie and Nara Prefectures with the city of Shingu as the central part. Wastes generation amount is estimated to be about 70,000 tons at the present as wastes that can be turned into RDF, and to be decreased to 67,000 tons in 2018. The manufactured RDF has calorific power of 3500 to 4500 kcal/kg, two to three times greater than that of wastes. The RDF manufacturing facilities installed in cities, towns and villages have capacity of 30 to 50 tons a day, with that in the city of Shingu being the largest at about 78 tons a day. Transportation can be implemented most efficiently when road transportation is used. The RDF power generation system will consist of a fluid bed furnace, a plasma type ash melting furnace, and a bag filter plus activated carbon absorbing tower. The RDF manufacturing cost will be 27,900 yen per ton of wastes in the case of the city of Shingu. In terms of business profitability, the RDF power generation must find sources to pay 21,400 yen per ton of RDF even if the power sale revenue is considered. (NEDO)

  16. Development of hydroponic system using agriculture waste. 1. Characteristics of rice husk charcoal as growth medium and vegetable growth; Suiko saibai ni okeru haikibutsu riyo gijutsu no kaihatsu. 1. Momigara kutan no baichi to shite no tokucho to yasai no seiiku

    Energy Technology Data Exchange (ETDEWEB)

    Terazoe, H.; Nakaya, K.; Okano, T. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1994-06-01

    Experimental researches were made on rice husk charcoals processed to be used as culture media for hydroponics. Rice husk charcoals with a size of 1 mm or larger retaining the original shape of the rice husk, and with a size of smaller than 1 mm were made for use in the experiment. In the culture media made of these rice husk charcoals, the charcoal with a particle size greater than 1 mm had more air portion than water portion at 6 cm above the water level, and the charcoal with a particle size smaller than 1 mm had poor air permeability. According to the result of immersing the rice husk charcoal in a culture solution, phosphoric acid ion and manganese in the solution decreased by about 35% and calcium by about 10% in the duration of 120 minutes, as a result of having been adsorbed into the rice husk charcoal. On the other hand, chloride ion increased by about 80% and potassium and iron by about 30%, because of having been dissolved out from the charcoal. In cultivating spinach, butterhead lettuce and radish in the rice husk charcoal culture media, the culture medium with charcoal smaller than 1 mm resulted in harvest reduced by about 75% in spinach, and about 10% in butterhead lettuce. 15 refs., 13 figs., 11 tabs.

  17. FY 1999 cooperation program - Comprehensive research cooperation in environmental technology. Research cooperation in toxic/hazardous waste management in the Laguna de Bay region; 1999 nendo kenkyu kyoryoku jigyo. Kankyo gijutsu sogo kenkyu kyoryoku - Raguna ko chiiki ni okeru yudoku yugai haikibutsu ni kansuru kenkyu kyoryoku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of establishing preventive measures for water contamination in the Laguna de Bay region, the Philippines, where the water contamination is in progress and the eutrophication is feared, a research cooperation project was carried out on the water quality contamination monitoring technology (measuring method/analysis method/prediction method). In the survey of the state of generation of toxic/hazardous waste, the following were grasped based on the existing data: amount of use of toxic/hazardous substances in factories, state of generation of waste, situation of the processing/disposal, etc. In the detailed survey of the situation of pollution in the Laguna de Bay region, specimens of water quality and bottom material were collected from the lake and rivers thereinto, and qualitative/quantitative analysis of contaminants was made using atomic absorption spectrophotometer and gaschromatograph mass spectrometer. As to the evaluation of pollutant sources and control method, the paper conducted the introduction of measures generally taken against pollutant sources, study of a method to grasp the behavior of contaminants by the environmental assessment method for the closed water area, etc. The training was also conducted for researchers/engineers widely in charge of management of toxic/hazardous waste in the Philippines. (NEDO)

  18. Erosion due to impingement of a cavitating jet. 4th report. Effects of nozzles shape and upstream pressure pulsation; Kyabiteshon kaishoku ni kansuru kenkyu. 4. Shibori keijo oyobi joryu atsuryoku hendo no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Yamaguchi, J.; Wang, Xiongying [Yokohama National Univ. (Japan). Faculty of Engineering; Kazama, T. [Muroran Inst. of Technology, Hokkaido (Japan)

    1997-05-15

    Erosion related to the collision of jet flow including cavitation bubble is one of the factor to verify the limitation of hydrostatic technology. The authors have so far investigated the effect of unsteady flow, up and down stream pressure, cavitation constant, specimen material and form, laboratory conditions, form around the nozzle path and nozzle outlet and so forth on erosion using jet flow collision type cavitation erosion experimental instrument that makes possible the easy handling of the phenomena caused in machines. Further, equation for estimating the amount of erosion was derived and level of effects of main factors was clarified. However, this method was limited to only circular nozzle fixed flow. In this report, comparative study of orifice nozzle and circular nozzle at both constant normal flow and unsteady flow was carried out using same experimental instrument as in the previous report. As a result, as for the nozzle used in this experiment, erosion in case of orifice nozzle was higher than that of circular nozzle. 15 refs., 13 figs.

  19. Effectiveness of aquatic microcosm system containing material cycle as method of toxicity and ecological assessment; Microcosm ni okeru busshitsu junkan to sono dokusei oyobi seitaikei eikyo hyoka shiken ni okeru yukosei

    Energy Technology Data Exchange (ETDEWEB)

    Inamori, Y. [National Inst. for Environmental Studies, Tsukuba (Japan); Takamatsu, Y. [University of Tsukuba, Tsukuba (Japan)

    1995-08-10

    The microcosm has its etymology in the `small outer space`, which is a system that groups or clusters of solid substances are cultivated in a certain container. The system has been prepared to elucidate the ecology and interactions of microorganisms and their structures. This paper describes analysis and assessment on the system based on the results of past studies thereof with an intention to utilize it as a model aquatic ecosystem for a test to assess influence on the ecosystem. It is necessary that, in the case of evaluating the influence on chemical substances, an elucidation be made on a concentration at which clusters of living organisms are not affected even if such chemical substances exist in the environment for a long period of time. In the case of an exotic microorganism, an elucidation should also be given on a concentration that does not affect the environment as seen from the survivability of the microorganism in the environment and its interactions with other microorganisms. A large number of examples of experiments shows that a microcosm test contains material cycle and interactions in multiple kinds of living organism systems, and has high reproducibility and stability. A discussion should now be required that the above test method be positioned as an ecosystem assessment method. 19 refs., 3 figs.

  20. Fiscal 1996 survey report. Data collection and evaluation analysis in the project on field tests on the fuel cell generation; 1996 nendo kenkyu hokokusho. Nenryo denchi hatsuden field test jigyo ni okeru data shuyaku oyobi hyoka kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The paper installed fuel cell power generation equipment experimentally at various facilities which are the final diffusion form of the new energy power generation, conducted long-term operation under the actual load, collected/analyzed various data, arranged them as data useful for full scale introduction/diffusion, aiming at forming the base for general diffusion of the fuel cell power generation. The number of the systems installed for field test execution has been 24 places/28 units since the start of the project, and the system capacity totaled 4,250kW. The actual operation hours in five years are 6,000-28,000. In fiscal 1996, the average cumulative accumulated operational rate was approximately 68%, a little over that in fiscal 1995, 65%. The average load factor was 69% in fiscal 1995 and 70% in fiscal 1996. The utilization rate increased as a whole to about 57% on average if seeing only fiscal 1996, as compared with that in fiscal 1995, about 48%. The power generating efficiency was approximately 34% on average. As to the status of shutdown of the fuel cell power generation, the paper surveyed the average interval of failure, the rate of frequency of shutdown, the analysis of shutdown, etc. 250 figs., 29 tabs.

  1. FY1997 report on test well drilling and well investigation for the Akinomiya area survey in the geothermal development promotion survey; 1997 nendo chinetsu sokushin chosa. Akinomiya chiiki chosa shisui kussaku koji oyobi kosei chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    In order to extract promising areas with high geothermal feasibility, the Akinomiya area was surveyed by drilling test wells. In the N9-AY-3 excavating work, the first stage (depth from 15 to 33 m) used the water-free excavation to prevent adverse effects on the water sources. The second stage (depth from 33 to 409 m) reached the targeted depth with slanted excavation. The third stage drilled into depths from 409 to 1,006 m. The fourth stage was targeted to drill down to 1,802 m, but an entire lost returns have occurred at the depth of 1,598 m, whereas lost water drilling was performed by using fresh water, and the drilling was terminated at the targeted depth. The AY-4 excavation was also advanced with the first, second, third and fourth stage method, and when the entire lost returns have occurred at 1,196 m, the lost water drilling was carried out by using fresh water, and the drilling was terminated at the scheduled 1,505 m. The AY-5 excavation was also advanced with the first, second, third and fourth stage method. The first and second stages used water-free excavation (using air hammers) to avoid influence on the nearby spa areas. The third stage went down to 405 m performing coring, but the entire lost returns occurred at 298 m. The excavation rate was very high, and the core recovery rate reached 100%. The fourth stage presented the same coring condition as that for the third stage down to 1,002 m. (NEDO)

  2. Changes of the temperature coefficients of the characteristics which accompany degradation and recovery of a-Si solar cells; A-Si taiyo denchi no hikari (denryu) rekka oyobi kaifuku ni tomonau tokusei ondo keisu no henka

    Energy Technology Data Exchange (ETDEWEB)

    Yanagisawa, T.; Koyanagi, T.; Nakamura, K.; Takahisa, K.; Kojima, T. [electrotechnical Laboratory, Tsukuba (Japan)

    1996-10-27

    Pursuant to the measuring of temperature dependency of the characteristics such as conversion efficiency, during the process of degradation in a-Si solar cells due to light and electric current and the process of recovery by annealing, this paper describes changes in temperature coefficients, correlation between the characteristic parameters and the degradation, and the results of the examination of their characteristics. The conversion efficiency {mu} degraded approximately by 45% of the initial value each by the irradiation under a light intensity with 3 SUN accelerated and by the infusion of current at 20mA/cm{sup 2}; and then, the efficiency recovered to 70-75% of the degradation by subsequent annealing. In addition, in the temperature dependency at 80{degree}C against at 20{degree}C, Isc slightly increased while Vcc greatly decreased. This slight increase in Isc was mainly due to the decrease in the width of the forbidden band, while the decrease in Vcc was due to the increase in the reverse saturation current. The temperature dependency of {mu}N was negative, becoming small in accordance with the degradation. The temperature dependency of FF/FFO was negative initially both in light and current, but it decreased with the degradation and turned to positive. The temperature coefficients of I-V parameters reversibly changed corresponding to the degradation and recovery of these parameters and stayed in a good correlation. 7 refs., 8 figs., 1 tab.

  3. Effect of VN precipitates on formation of grain boundary and intragranular ferrite in a high N-V bearing steel; V-N tenkako no ryukai oyobi ryunai ferrite hentai ni oyobosu austenite chu no VN sekishutsu no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Omori, A.; Oi, K.; Kawabata, F.; Amano, K. [Kawasaki Steel Corp., Tokyo (Japan)

    1998-11-01

    The enhancement of ferrite nucleation owing to vanadium nitride (VN) precipitated in the austenite phase was studied for a 0.14%C- 1.45%Mn-0.06%V-0.009%N steel and the isothermal ferrite transformation behavior associated with VN precipitation was also quantitatively discussed. Vanadium nitrides precipitate on the austenite grain boundary in preference to the grain interior and increase the density of grain boundary ferrites. On the other hand, VN precipitates in austenite grain interior are less effective to intragranular ferrite nucleation. The calculation based on the classical nucleation theory shows that the activation energy of VN precipitates for a critical ferrite nucleus formation is one-fifth lower than that in case of no precipitate. The ferrite nucleation potency of VN precipitates is kept high even in higher temperature range above 700degreeC. (author)

  4. Effect of hydrogen on transformation characteristics and deformation behavior in a TiNi shape memory alloy. Ti-Ni kei keijo kioku gokin no hentai tokusei oyobi henkei kyodo ni oyobosu suiso no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Yoshiya, T.; Katsuta, H.; Ando, H. (Japan Atomic Energy Research Institute, Tokyo (Japan)); Den, S. (Irie Koken Co. Ltd., Saitama (Japan))

    1992-07-20

    Transformation characteristics and deformation behavior of Ti-50.5at%Ni shape memory alloys, which were occluded hydrogen in various levels, were investigated through electrical resistivity measurements, tensile tests, and X-ray diffraction. Specimens were heated in a low pressure range of hydrogen between 1.1 and 78.5kPa for equilibrium, and thus obtained the specimen which occluded hydrogen up to a maximum value of 5.6 mol%. Martensitic transformation starting temperature(Ms) decreased with an increase in hydrogen content. This corresponds to the fact that the improvement of stabilization of the parent phase during cooling due to hydrogen occlusion was confirmed by X-ray diffraction. It also shows that hydrogen has the suppression effect on this deformation. Critical stress for slip deformation changed with hydrogen content so that hydrogen influenced greatly on deformation behavior of the alloys. Lattice softening occurred with hydrogen contents up to 0.032 mol%, and changed into hardening above 0.032 mol%. Hydrides formed with hydrogen contents over 1.9 mol% resulted in reorientation in variants of the R phase and an increase in lattice strains of the parent phase. 29 refs., 14 figs., 1 tab.

  5. Effect of austenite grain size in Fe-Mn alloys on {epsilon} martensitic transformation and their mechanical properties; Fe-Mn gokin no {epsilon} marutensaito hentai oyobi kikaiteki seishitsu ni oyobosu kessho ryukei no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Nakatsu, H. [Kyushu Univ., Fukuoka (Japan). Graduate School; Takaki, S. [Kyushu Univ., Fukuoka (Japan). Faculty of Engineering

    1996-02-20

    The Fe-Mn two-components alloy samples varied with Mn content of 12 to 31 mass% were prepared by charging {gamma}-crystalline grain size using its recrystallization, and were surveyed on effects of the {gamma}-crystalline grain size on athermal {epsilon}-martensitic ({epsilon})-transformation and machining- induced {epsilon}-transformation. As a result of examining the relationship between the {gamma}-crystalline grain size or the {epsilon}-transformation and their mechanical properties, conclusion shown as follows is obtained. The athermal {epsilon} was formed at the alloy containing more than 10 mass% of Mn, maximum {epsilon} was shown at the composition containing about 17 mass% of Mn and the {epsilon} was almost not formed at the steel containing more than 27 mass% of Mn. When crushing the {gamma}-crystalline grain to fine powder, the {epsilon} martensitic transformation beginning temperature tended to reduce somewhat and production amount of the {epsilon} decreased extremely. On the steel containing Mn ranged 15 to 31 mass%, the fine powdering affected scarcely its durability but improved its elongation and its tensile strength. 26 refs., 11 figs., 1 tab.

  6. Stress releasement by transformation superplasticity. Part 2. ; Effect of alloying elements and transformation temperature on stress releasement. Hentai chososei ni yoru oryoku kanwa. 2. ; Oryoku kanwa ni oyobosu gokin genso oyobi hentai ondo no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Murata, H. (Yokogawa Medical System, Ltd., Tokyo (Japan)); Kato, N. (Tokyo Institute of Technology, Tokyo (Japan)); Tamura, H. (Nihon University, Tokyo (Japan))

    1991-02-05

    Steel test pieces having various transformation temperatures (M {sub S}) were fabricated varying Ni and Cr contents, and tests were done on their torsional transformation resistance in cooling process, and stress relaxing characteristics due to transformation superplasticity, using a forced twisting equipment. The test pieces, while being twisted, were heated by high frequency induction from an external source to 1000 {degree} C in 50 seconds, retained for 50 seconds, and then their transformation resistance was detected during cooling. The motor was so controlled in five steps that the added shear distortion speed is constant per unit temperature reduction. The Ni and Cr contents and M {sub S} are in linear relation, and its experimental formula was sought. Even if Ni and Cr contents differ, similar stress relaxing characteristics were presented as long as the M {sub S} points are identical. Therefore, hardness and corrosion resistance can be controlled in welding metals by means of so varying Ni and Cr contents that the M {sub S} point is maintained in a certain range. The transformation resistance showed the minimum value lower by 70 to 80 {degree} C than the M {sub S} point. To apply the phenomena of transformation superplasticity, the temperature difference between preheating paths is important in addition to chemical constituents. 18 refs., 8 figs., 1 tab.

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-05-27

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

  8. Heat exchangers, pipes and valves. 7. ; Piping desing and valves applied for thermal power plant. 1. Netsukokanki oyobi haikanter dot ben. 7. ; Karyoku hatsudensho ni shiyosareru haikan to ben. 1

    Energy Technology Data Exchange (ETDEWEB)

    1991-11-15

    Datailed explanations are given on the following matters that require special considerations in piping design. (1) Procedure for piping desigs; (2) Piping line planning: piping line desin, piping line configuration, gists for piping design (main steam line, reheated steam line, boiler feed line); (3) Selection of pipe materiais and determination of pipe diamerers: selection of pipe materiais determination of pipe diameters, determination of pipe wall thickness; (4) Gists for device arrangent (emphasis is placed on suitability of device arrangement as it determines final acceptability of piping); (5) Gists for piping route design; (6) Analysis of pipe thermal stress: stess generated in piping, judgement on piping fiexibility,method of calculating theamal stresses, concept of permissible pipe stress; (7) Considerations on fluid stabilization; (8) Considerations on anti-seismic design; (9) Considerations on piping construction work (Indication is given that what requires the largest labor and longest construction period is the piping and its peripheral installation in constructing a thermal power plant); (10) Consideration on maintenance and checks. 8 figs., 10 tabs.

  9. Behavior of Minute Amount of Crotonaldehyde in Batch Rectification of 1-Butanol+Ethanol and Isoamyl alcohol+Ethanol; 1-butanoru + etanoru oyobi isoamiruarukoru + etanoru kei no kaibunseiryu ni okeru biryo no kurotonarudehido no kyodo

    Energy Technology Data Exchange (ETDEWEB)

    Tan, K.; Hatate, Y.; Aiko, R. [Kagoshima Univ. (Japan). Faculty of Engineering

    1997-07-10

    Vapor-liquid equilibria of 1-butanol+ethanol and isoamyl alcohol+ethanol systems containing a minute amount of crotonaldehyde were measured at atmospheric pressure using an Othmer-type still. Equilibrium ratio curves of the trace component (crotonaldehyde) are shown to exhibit a characteristic shape. Batch rectification experiments of ethanol, 1-butanol, 1-butanol+ehanol and isoamyl alcohol+ethanol systems containing 0.1 wt% crotonaldehyde were carried out using a glass Oldershow-type column. The lowering of the concentration of the trace component in distillate becomes gentle with the progress of distillation. The distillation curves of the trace component are found to show a peak at the change of distillate of the major components. In the residue of batch rectification of 1-butanol and isoamyl alcohol solutions, crotonaldehyde was detected in much higher concentration than in the last distillate. 5 refs., 8 figs., 1 tab.

  10. Experiment for estimating phase velocity and power fraction of Love wave from three component microtremor array observation in Morioka area; Moriokashiiki deno bido no sanseibun array kansoku ni yoru love ha no iso sokudo oyobi power hi suitei no kokoromi

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-22

    Three component microtremor array observations were carried out in two locations in the city of Morioka for an attempt of estimating phase velocity and power fraction of Love wave by applying the expanded three component spatial self-correlation method. The microtremors were observed by using a seismograph with a natural period of one second. The arrays were so arranged as to form an equilateral triangle consisted of seven points. The maximum radii were 100 m, 50 m, 25 m and 12.5 m for vertical movements, and 100 m and 30 m for horizontal movements at the Iwate University, and 80 m, 40 m, 20 m and 10 m for vertical movements and 90 m for horizontal movements at the Morioka Technical Highschool. The analysis has used three sections, each with relatively steady state of about 40 seconds as selected from records of observations for about 30 minutes. The result of the discussions revealed that it is possible to derive phase velocity of not only Rayleigh waves but also Love waves by applying the expanded spatial self-correlation method to the observation record. Thus, estimation of underground structures with higher accuracy has become possible by using simultaneously the Rayleigh waves and Love waves. 3 refs., 11 figs., 2 tabs.

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-05-01

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

  12. Ion transfer of weak electrolytes across the oil/water interface. Ion transfer of scopolamine and lidocaine; Jakudenkaishitsu no yusui kaimen ion ido. Sukoporamin oyobi ridokain no ion ido

    Energy Technology Data Exchange (ETDEWEB)

    Arai, K.; Kusu, F.; Tsuchiya, N.; Fukuyama, S.; Takamura, K. [Tokyo College of Pharmacy, Tokyo (Japan)

    1994-09-05

    As a technique to investigate ion transfer at an interface between oil and water, mutually immixable, voltametry of ion transfer across the oil/water interface is useful. In this report, noticing interfacial transfer of weak electrolytes, equations approximating half-wave potentials of the ion transfer voltammogram have been derived taking into consideration its ionization. In other words, the effects of the ionization of weak electrolytes on ion transfer at the nitrobenzene/water interface have been studied, the equations approximating half-wave potentials on ion transfer of weak electrolytes have been obtained based upon the ionization of weak electrolytes in the water phase and the distribution of neutral electrolytes between the nitrobenzene and water phases. By these equations of approximation, the observed pH dependence on the half-wave potentials for ion transfer of scopolamine and lidocaine can be explained satisfactorily. The half-wave potential of scopolamine has become more positive by 0.059V per PH unit at pH > 7, while it has remained constant at pH < 7, and regarding lidocaine, the above situations have been the same at pH{gt_or_lt}5.5. 8 refs., 7 figs.

  13. Processing of a TiPd-SMA fiber/Ti matrix composite and its microstructure and mechanical properties; Ti/TiPd ki keijo kioku gokin fiber fukugo zairyo no sakusei to sono soshiki oyobi kikaiteki seishitsu

    Energy Technology Data Exchange (ETDEWEB)

    Mizuuchi, K. [Osaka municipal Technical Research Institute, Osaka (Japan); Yamauchi, K. [Tokin Corp., Sendai (Japan); Hamada, K.; Inoue, K.; Taya, M. [University of Washington, Seattle, WA (United States); Enami, K. [Ryukoku University, Kyoto (Japan)

    1997-08-20

    Evaluation is made of a material that memorizes its shape at high temperatures, composed of Ni/ W-containing Ti-Pd based fiber and pure Ti and fabricated by the sheath rolling method. For the manufacture of this composite material, a laminate of pure Ti plates and Ti-Pd-Ni-W fibers is vacuum-sealed in an SUS304 stainless steel pipe, the result is then subjected to sheath rolling at 1123K, and then heated for 3.6ks and kept there. The thus produced material is subjected to texture observation, component analysis, tension test, etc. In this material, a 30{mu}m-thick interface reaction layer is homogeneously formed to entirely coat a fiber for the sustenance of an excellent state as a composite. The strength of a specimen pre-stressed at room temperature is measured, and the obtained value exceeds the value worked out on the basis of composite governing rules. It is suggested that possibilities are high that this improvement on the strength is attributable to the residual compression stress accumulated in the Ti matrix due to the shape memory effect and superelastic effect. 17 refs., 16 figs., 2 tabs.

  14. Strength evaluation for modified 12Cr steel and A286 steel of USC turbine rotor material. Chocho rinkaiatsu turbine rotorzai kairyo 12Cr ko oyobi A286 ko no kyodo tokusei hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Ogata, Takashi; Nitta, Akito.; (Central Research Inst. of Electric Power Industry, Tokyo, Japan)

    1990-01-01

    For candidate materials of the ultra super critical (USC) turbine rotor in a coal fired power plant, the modified 12Cr steel and A286 steel are subjects of the study under the first step steam condition (316 atg, 593 centigrade) and under the second step steam condition (350 atg, 650 centigrade), respectively. The strength evaluation tests of the modified 12Cr steel untreated material and aging (630 centigrade, 4860 hours) material I were conducted previously, and obtained a prospect that the material can be applied to the first step turbine rotor. In this report, the strength evaluation tests and microstructure observation of the long period aging (630 centigrade, 8190 hours) material II, and the strength tests of the A286 steel have been conducted. As a result, it was found that the modified 12Cr steel is a stable material in the microstructure and has enough strength characteristics to apply the first step rotor, and the A286 steel also can be applied to the second step rotor. 9 refs., 27 figs., 8 tabs.

  15. Survey on the present state, policy and future view of power demand/supply in Sichuan province, China; Chugoku Shisensho no denryoku jukyu no jittai oyobi sono seisaku doko narabini kongo no tenbo ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The Chinese government is carrying out various promotion measures of the interior region for the disparity correction between the interior and coastal regions, and development of China as a whole. Sichuan province is a major province for the promotion policy of the interior region which is located in the western part of China, and has an area of 570,000 square km, a population of 111.62 million, abundant natural resources, and the established industrial base. Based on the above situation, the present and future of energy situation and power demand/supply, and the policy trend and environmental measures of Sichuan province were analyzed to plan the cooperation policy on energy between Japan and China. The theoretical power generation capacity of water resources in Sichuan province is 150 million kW, and it is estimated that development of 1,062 power stations of 500kW class or more (91.67 million kW in total generator capacity and 515.3 billion kWh in annual generation output) is possible. Although Sichuan province has abundant hydraulic energy resources, it is largely dependent on coal-fired power generation. 4 figs., 34 tabs.

  16. Effect of aluminum on the growth and nutrient uptake in cryptomeria japonica D.Don and Chamaecyparis obtusa Sieb. et Zucc.; Sugi oyobi hinoki no ikusei to yobun kyushu ni oyobosu aluminium no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Kono, Y.; Matsumura, H.; Kobayashi, T. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1995-09-10

    Two-year-old seedlings of Sugi (Japanese cedar: Cryptomeria japonica D. Don) and Hinoki (Japanese cypress: Chamaecyparis obtusa Sieb. et Zucc.) were grown for 4 months in 1/5 Hoagland`s No.2 nutrient culture solution containing aluminum chloride in the concentration range of 0.5 to 20 mM within the pH range of 3.5 to 4.0. Aluminium supplied at or below 1 mM of Al had no effect on the mortality of these species. However, the increase Al concentration higher than 2 mM increased the mortality. While they showed significant growth reduction at or higher Al concentration of 5 mM, there were no difference in growth response to Al between the two species in this experiment. While Al contents in leaf and root significantly increased with increasing Al concentration in the solution, contents of Ca, Mg and P in leaf decreased. Roof p content in Sugi increased with the increase of Al concentration in the solution, while no such change was observed in Hinoki root. This result suggests that Al might make phosphate immobile or inviolable form in Sugi root and this might lead to the reduced translocation of P into the leaf. In contrast, Al did not interfere with the uptake of phosphate in the root, however, it might interrupt phosphate transport into leaf from root system in Hinoki. The Al concentration such as 5 mM in the root sphere induced growth reductions in Sugi and Hinoki, with no significant difference in the response between the two species. This concentration was much higher than those reported in the field crops, vegetables and/or herbs. Thus, if soil acidification will be induced by acidic deposition in future, these herbaceous plants will be influenced faster than the conifer trees. This also means that ground vegetation change will be observed earlier than the conifer decline by the soil acidification stress. 23 refs., 5 figs., 3 tabs.

  17. Experimental study on the effect of fiber reinforced rubber-rolled pin of the bridge restrainer plate system; Gomu dansho pin wo mochiita rakkyo boshi renketsuban no seiteki oyobi doteki oto tokusei ni kansuru jikkenteki kosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Sonoda, Y.; Hikosaka, H. [Kyushu Univ., Fukuoka (Japan); Ishikawa, N. [Defence Academy, Yokosuka, Kanagawa (Japan)] Ikoma, N. [Shibata Industrial Co. Ltd., Osaka (Japan)

    1998-07-21

    As for the big earthquake like Hyogo Ken southern Earthquake, accident like collapsing of bridge girder is extremely difficult to prevent by only one bridge restrainer device. However, there exist considerable many spots not having enough space such as urban roads and so forth or the spots where the renewal of the existing restrainer device is difficult and as for these spots, it is thought that improvement of earthquake resistance performance is necessary by using the restrainer system based o the simple reformation of existing bridge restrainer plate system. In this report, under such condition, rolled pin winding the fiber reinforced rubber surrounding the connected pin was proposed as a technique for improving earthquake resistance by easy reformation of bridge restrainer of Spectacle type bridges which has many construction findings. In order to carry out characteristic and quantitative evaluation of the effect of rubber-rolled pin, two stages, o use level and ultimate level, were considered and static behavior and impact load characteristics for each level were studied experimentally, and comparison was made with the conventional steel pin. 13 refs., 19 figs., 6 tabs.

  18. Hydrogen embrittlement. Hydrogen embrittlement in steels from viewpoints of hydrogen diffusion and hydrogen absorption; Suiso zeisei. Suiso kakusan oyobi suiso kyuzo kyodo no kantenkara no tekko zairyo no suiso zeiseika ni tsuite no kosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Kushida, T.; Kudo, T. [Sumitomo Metal Industries Ltd., Osaka (Japan)

    1994-07-20

    The hydrogen induced cracking (HIC) in situ measurement method was developed by combining an electrochemical hydrogen permeation method and an ultrasonic crack inspection method. This method was applied to the center segregated region of line pipes to quantify the HIC sensitivity of hardened textures, and also applied to sulfide stress cracking and delayed fracture. As a result, a threshold hydrogen permeation coefficient (THPC) and a diffusion coefficient of hydrogen in steel decreased with an increase in strength and amount of alloy elements. A threshold hydrogen content for cracking was nearly constant independently of the kind of steels although it decreased with an increase in stress, and an environmental hydrogen permeation coefficient (EHPC) was affected by not strength but composition and environment. Hydrogen embrittlement was observed as EHPC exceeded THPC, and EHPC allowed to determine the threshold applicability of materials from hydrogen embrittlement (HE). The steel superior in HE resistance was thus obtained by reducing the hydrogen content in steel based on the above results. 31 refs., 18 figs.

  19. Effects of fly ash and blast-furnace slag powder in alkali-aggregate reaction inhibition; Flyash oyobi koro slag bifunmatsu no arukari kotsuzai hanno yokusei koka chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Sakai, K. [The Kansai Electric Power Co. Inc., Osaka (Japan)

    1997-01-31

    To restrain alkali-silica reaction (ASR) of concrete aggregate, ASR curbing capability of pozzolanic admixtures was experimentally investigated. For the experiment, augite-andesite, rhyolite welded tuff, chert, and sandstone were used as typical reactive aggregates. The pessimum proportions showing maximum expansion coefficient were determined by means of mortar bar test method. As a result, they were, by volume, 20% for augite-andesite, 60% for sandstone, and 100% for rhyolite welded tuff and for chert. In the case of these pessimum proportions, ASR curbing effect was examined when a part of cement was replaced by fly ash and blast-furnace slag powder. Experimental results demonstrated that both of them have an effect of curbing ASR of concrete. Even in the case of augite-andesite with high expansion coefficient, it was found that the expansion coefficient of concrete aged for six months can be repressed below 0.10% by replacing 30% of cement with fly ash and 40% of cement with blast-furnace slag powder. 23 figs., 11 tabs.

  20. Development of an analytical method for total mercury and alkyl mercury in environmental water with GC/MS; Suichu zen suigin oyobi arukiru suigin no feniru ka ni yoru GC/MS bunsekiho

    Energy Technology Data Exchange (ETDEWEB)

    Matsubara, H.; Nakayama, S.; Funakoshi, S. [Fukuoka City Inst. of Public Health, Fukuoka (Japan); Urano, K. [Yokohama National Univ. (Japan). Faculty of Engineering

    1996-07-10

    Electronic display Gas chromatography (ECD-GC) is used as a analysis method for alkyl mercury, however, in this method, the peak of chromatogram is broad and also is easy to effect by interference. This is because of the analysis of extreme compounds like R-Hg-Cl using ECD detector. In this research, highly reliable method was developed in order to identify and quantity each form of mercury in the environment using GC/MS. That is to say, application of phenylation method was tried after solvent extraction using JIS-K0102 and reverse extraction with L-cysteine-sodium acetate solution. The reverse extraction solution of alkyl mercury contains L-cysteine, however, the reaction rate of methylphenyl mercury and ethylphenyl mercury was favorable when reaction between sodium tetraphenylborate and methyl mercury, ethyl mercury was carried out, and phenylation compounds, in GS/MS analysis, show sharp peak of SIM chromatogram with slight interference. 9 refs., 6 figs.

  1. Effects of hardness and test temperature on the stress-corrosion cracking susceptibility of carbon steel in simulated BWR environment; Koon koatsu sui kankyo ni okeru tansoko no oryoku fushokuware kanjusei ni oyobosu kodo, oyobi shiken ondo no eikyo hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Nakayama, G.; Akashi, M. [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)

    1998-03-15

    An SSRT test and a CBB test were carried out on carbon steel and heat treated materials applied with bead welding of single pass simulating fillet welding in oxygen-enriched high-temperature water environment, and the stress-corrosion cracking susceptibility was evaluated. Highly hard welding heat affected zones with Vickers hardness of more than 400 have grain boundary stress-corrosion cracking susceptibility. However, a structure whose high hardness has been realized by tempering treatment has no grain boundary stress-corrosion cracking susceptibility. In the SSRT test, stress-corrosion cracking fractured face rate rises with rising test temperature, resulting in stress-corrosion cracking susceptibility shown even at lower hardness. On the other hand in the CBB test, a large number of relatively shallow cracks are generated down to low hardness at temperatures below 190 degC, while the number of cracking occurrence decreases as the temperature rises. However, deep cracks increase. In the CBB test on tempered heat treatment materials, the fact that stress-corrosion cracking can occur in test pieces with Vickers hardness of 165, which is nearly the same as that for the base material, proves that no lower limit hardness exists practically in occurrence of stress-corrosion cracking in carbon steel. 13 refs., 12 figs., 2 tabs.

  2. Establishment of hardness measurement method for ultra-thin surface layer and surface hardness of ion implanted 13CR steel; Hyomen gokuususo no kokyodo hyokaho no kakuritsu oyobi ion chunyu shorisareta kokyodo stainless ko no hyomen kodo hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Tanaka, T.; Kato, M. [Ritsusmeikan University, Kyoto (Japan); Nakayama, H. [Osaka Sangyo University, Osaka (Japan); Mikoda, M. [Ion Engineering Center Corp., Osaka (Japan)

    1994-09-15

    Evaluation was made on the surface layer of high tensile stainless steel which had undergone ion implantation treatment. First, the microhardness evaluation method of ultra-thin surface layer was attempted. Fully-annealed S25C steel was used as standard specimen. Study was made on the loading method of the pressure loading for the load dependency of hardness, and statistical distribution of indentator depth for the dispersion in hardness. As a result, load increasing speed and time which had small load dependency were verified. By conducting statistical treatment of repeated measurement data, it was made clear that the accuracy would increase. By the newly established evaluation method, surface hardness of ion-implanted high tensile strength Martensite type stainless steel was measured. Increase in hardness was confirmed for ion-implanted materials, and materials which had undergone ion-implantation and heat treatment (annealing). In either case, maximum hardness was obtained when the indentator load was 0.05 N. The amount of improvement was significant in the ultra-thin surface layer for ion-implanted materials, and deeper in depth in the case of ion-implantation heat treatment process. This conforms with the implantation ion diffusion behavior. 12 refs., 12 figs., 1 tab.

  3. Survey report for fiscal 1998. Evaluation by industrial circles of the COP3 outcome and their future response (America); 1998 nendo chosa hokokusho. COP3 no kekka ni taisuru sangyokai no hyoka oyobi kongo no taio ni tsuite (Beikoku)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Response in America to COP3 (Third Session of the Conference of the Parties to the United Nations Framework Convention on Climate Change) is investigated. Office of Energy Efficiency and Renewable Energy (EE) of America's Department of Energy conducts activities designed to protect environments and supports America's economic competitiveness. The scope of EE activities is quite wide, covering efforts at energy efficiency improvement and renewal energy utilization for all energy consuming sectors involving construction work and equipment for buildings, various industries and public utility works, and transportation. EE also supports and promotes the development of advanced industrial materials, electric vehicles, hybrid vehicles, fuel cells, etc. In the field of renewable energy, it deals with the exploitation of sunlight, biomass, wind force, water power, geothermal energy, etc. It also supports efficiency improvement efforts being undertaken through studies of advanced power transmission and distribution, high-temperature superconduction, energy storage, etc. The said supports are provided not only by Federal Government but also by state governments, and include financial aids. A number of programs are under way, worked out and promoted by the respective bureaus and departments. They are evaluated, protected, and implemented through the partnership of official and civilian organizations. (NEDO)

  4. Especially the research-biochemistry engineering bioprocess system the research various new development research; Seibutsu kagau kogaku ni kansuru kenkyu-tokuni baio purosesu shisutemu no chinoka ni kansuru kenkyu oyobi shujuno shinki baio riakuta no kaihatsu kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Endo, Isamu [The Institute of Physical and Chemical Research, Tokyo (Japan)

    1999-03-05

    The biochemistry engineering, especially research on the intellectualisation of the bioprocess system and development researches of various new bioreactors, is done, and the achievement, which it is very much excellent, is being held. And, function and structure of the new photoreaction enzyme were clarified, and the way of the new sensor development was shown. The achievement can be divided roughly into next three. The research on the intellectualisation of the bioprocess system: Various metabolism activity shown at cellular level of the industry microorganism was estimated in on-line real time, and the computer control system which controlled the process based on physical state of the microorganism was developed. Microorganism concentration laser turbidity sensor, substrate using the ceramic sampler and metabolism product concentration measurements systems, sample liquid automatic transfer line system have been used practically even in the inside in laboratory, factory. In addition, this system developed, and anomaly diagnosis system by the expert system was constructed. And, the maintenance system of next generation bio plant which introduced group intelligent robot is being developed. The development of the new bioreactor: The conventional agitation tank type bioreactor developed, and what is called various new separate type bioreactors in which the biological response could also process the separation of the purpose product simultaneously and concurrently by the identical container were developed. It is a fluidized-bedding bioreactor that the microorganism is made to adhere to porous tube type bioreactor and die child state polyurethane foam which constitute the ceramic filter tube center and that the flow makes it react, and as, drums solid culture reactor-using the polyurethane foam, etc. are them. The utilization is respectively examined these and new bioreactor for apple wine and antibiotics, production of the industrial use enzyme. The research on the correlation between structure and function of the photoresponsivity nitrile-hydratase: It was found that it studied structure and function of photoresponsivity nitrile-hydratase which converts into the amidation conjunction thing with the hydration of the nitryl compound and clarifies the molecular structure of reaction center, and that NO controls the photoactivation. This discovery opens the way for the development of the again new NO sensor. Like this, the result has been evaluated him high using much excellent achievement in the field of the biochemistry engineering in domestic and overseas. (translated by NEDO)

  5. Application of resin lining system for countermeasures for preventing leakage from openings in low temperature materials storage; Teion busshitsu chozoji no ekimore oyobi reiki more taisaku toshite no kobunshikei zairyo no tekiyosei

    Energy Technology Data Exchange (ETDEWEB)

    Inada, Y. [Ehime Univ., Ehime (Japan). Faculty of Engineering; Seki, S.

    1996-12-21

    Recently, many of the low temperature materials such as LNG and LPG used as an energy substitution for petroleum were stored in the reclaimed land of the sea side district, however, it is necessary for those storage methods to enlarge sites. Therefore, it was considered to directly store the low temperature materials in openings excavated in the rock mountains. However, countermeasures for leakage of liquid and cold gas from cracks in openings would be an important subject. In this study, as a countermeasure for leakage of liquid and cold gas in the case in which low temperature materials were stored in openings in the rock mountains, the lining of resin materials on the surface of openings was proposed. Characteristics of strength and deformation and values of the thermal physical properties for the resin materials at the low temperature were obtained by experiments. This material was compared with granite supposed as a parent rock, and the thermal property of the resin materials was understood. Next, an analysis was conducted in the case of using the resin materials as a lining, the behavior of the surrounding rocks of the openings and the stability of the lining were investigated. 17 refs., 25 figs., 2 tabs.

  6. Study on the annular leakage-flow-induced vibrations. 1st Report. Stability for translational and rotational single-degree-of-freedom systems; Kanjo sukimaryu reiki shindo ni kansuru kenkyu. 1. Heishin oyobi kaiten 1 jiyudokei no anteise

    Energy Technology Data Exchange (ETDEWEB)

    Li, D.W. [Hitachi, Ltd., Tokyo (Japan); Kaneko, S. [The University of Tokyo, Tokyo (Japan); Hayama, S. [Toyama Prefectural University, Toyama (Japan)

    1999-07-25

    This study reports the stability of annular leakage-flow-induced vibrations. The pressure distribution of fluid between a fixed outer cylinder and a vibrating inner cylinder was obtained in the case of a translationally and rotationally coupled motion of the inner cylinder. The unsteady fluid force acting on the inner cylinder in the case of translational and rotational single-degree-of-freedom vibrations was then expressed in terms proportional to the acceleration, velocity, and displacement. Then the critical flow rate (at which stability was lost) was determined for an annular leakage-flow-induced vibration. Finally, the stability was investigated theoretically. It is known that instability will occur in the case of a divergent passage, but the critical flow rate depends on the passage increment in a limited range: the eccentricity of the passage and the pressure loss factor at the inlet of the passage lower the stability. (author)

  7. Determination of electron impact ionization and excitation coefficients in He-Xe gas mixtures. He-Xe kongo gas ni okeru denshi shototsu denri keisu oyobi reiki keisu no sokutei to kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Takahashi, K.; Tachibana, K. (Kyoto Inst. of Technology, Kyoto (Japan))

    1991-03-20

    The rare gas discharge gives a stable discharge and light emission characteristics at low temperature in comparison with the discharge of the vapor of such a metal as Hg. The present barrier for the commercialization of the color PDP lies in the lower level of its emission intensity and efficiency in comparison with that of CRT. In this report, an electron impact ionization coefficient in a gas mixture and an electron impact excitation coefficient for a XeIs {sub 4} level were analyzed using a Boltzmann equation by means of a steady state Townsend method using a drift tube. By comparing both, the elementary process in the gas mixture is investiagted to discuss the respective contributions for the effective ionization coefficient and the excitation coefficient. As a result, it was found that the ionization process in the He-Xe gas mixture could be described by the processes of direct ionization of Xe and He, and an indirect ionization (Penning effect) by an active helium. 37 refs., 12 figs.

  8. Positron lifetime measurements and positron-annihilation induced auger electron spectroscpy using slow positron beams; Teisoku yodenshi bimu wo mochiita yodenshi jumyo sokutei oyobi yodenshi shometsu reiki oje denshi bunko

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, R. [Electrotechnical Lab., Tsukuba (Japan)

    1996-02-20

    Slow positron beam with less than several eV can be controlled freely such as accelerating, throttling the beam size, shortening the pulse or making pulse with short time width and so forth. These low positron beams are applied to various measurements like Doppler broadening measurement of annihilation {gamma} rays or lifetime measurement of positron, and secondary particle measurements using positron microscope, positron electron ray diffraction, flight time method and so forth. In particular, these recent years, high intensity slow positron beams were possible using accelerators like electron linac and its application is increasing. In this report, pulse shortening method for high intensity slow positron beam, and incidence energy variable positron lifetime measurement method using this slow pulsed beam and flight time type positron-annihilation-induced auger electron spectroscopy are outlined. In future, these measurements can be possible to carry out with high resolution and also with high counting rate if higher intensity monochromatic excellent positron beam than present one is produced. 31 refs., 5 figs.

  9. Development of high-performance ion sensors based on the functions of crown ethers and synthetic bilayer membranes; Kurauneteru oyobi goseinibunshimaku no kino wo kiban to shita koseino ion denkyoku no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Yanagi, H.; Sakai, T.; Ogata, T. [Tokuyama Corp., Tokyo (Japan)

    1999-10-10

    High-Performance Na{sup +}, K{sup +} and Cl{sup -} ion selective electrodes (ISEs) are reported. These are based on a new concept, which is an ion recognition site formed by molecular interaction. In the case of Na and K ISEs, crown ether compounds connecting with planar substituents were used as the ionophores. The selectivities depend on the structure of substituents. It is found that the intermolecular interaction of the planar substituent plays an important role on the improvement of selectivity. The selectivities of interactive mono (crown ether) are equal to that of bis (crown ether). It means that ion recognition site like a bis (crown ether) is formed by the interaction of mono (crown ehter)s. In the case of C1 ISE, immobilized synthetic bilayer membrane with quaternary ammonium salts was used as the ion sensitive membrane. in the immobilized synthetic bilayer membrane, ordered molecular aggregates is formed. It is found that the molecular orientation improved the Cl selectivity. The insufficient selectivity over lipophilic anions can be addition of alphatic alcohol. These resulting ISEs exhibit high speed response and long life time, and they are applicable to clinical use which demands both accurate measurement and high speed processing. (author)

  10. Concurrently inhibitory and allelopathic effects of allelochemicals secreted by Myriophyllum spicatum on growth of blue-green algae; Hozakinofusamo ga hoshutsushita areropashi busshitsu no aisorui ni taisuru fukugo sayo oyobi areropashi koka no hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Nakai, S.; Inoue, Y.; Hosomi, M.; Murakami, A. [Tokyo Univ. of Agriculture and Technology, Tokyo (Japan)

    1998-10-10

    This paper describes effects of allelochemicals secreted by Myriophyllum spicatum on growth of blue-green algae. In order to propose an effective growth inhibitory method of blue-green algae with less impact on the ecosystem, biological interaction (allelopathy) between large aquatic plants and algae was investigated. Pyrogallic acid, gallic acid, catechin and ellagic acid secreted by M. spicatum provided growth inhibitory effects of blue-green algae (Microcyctis aeruginosa), individually. Complex interaction and allelopathic contribution of these four polyphenols were evaluated. By comparing the actual effects with the expected values, synergetic growth inhibitory effects were recognized by adding four polyphenols at the same time. Furthermore, growth inhibitory effects were evaluated for actual culture solution of M. spicatum and simulated culture solution made by four polyphenols. As a result, it was found that these four polyphenols relate to allelopathy of M. spicatum. 25 refs., 6 figs., 4 tabs.

  11. Report on evaluation on endocrine disturbing effect of chemicals and development of test methods; 1999 nendo kagaku busshitsu no naibunpi kakuran koka ni kansuru hyoka oyobi shikenho no kaihatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    With regard to endocrine disturbing effect being the new deleteriousness of chemicals, data were collected and evaluated by using the existing testing methods, data were collected by using the screening test, the testing methods were developed, and international investigation was carried out to establish the risk evaluation methods. In the evaluation by using the existing test methods, seven substance groups deficient in deleteriousness data qualitatively and quantitatively were given reproduction toxicity tests to evaluate availability of the endocrine activity. Development of the screening test method has been carried out by participating the validation test by OECD to make the uterotrophic assay method and the Hershberger assay method a test guideline having international matching property. International investigations to establish the risk evaluation were executed on the molecular mechanism of nuclear receptors, the chemical, metabolic and environmental behaviors of endocrine active substances, the effects of the endocrine active substances on experimental animals and human, the utilization thereof for risk assessment in human, and the effects of endocrine disturbance acting substances in wildlife species. (NEDO)

  12. Effect of environmental and stress intensity factors on IGA/SCC of nickel-base alloy. Nickel ki gokin no ryukai fushoku no hassei shinten ni oyobosu kankyo oyobi oryoku inshi no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Hirano, H.; Kawamura, H. (Central Research Institute of Electric Power Industry, Tokyo (Japan))

    1993-12-25

    Test was conducted on the intergranular attack (IGA) and stress corrosion cracking (SCC) of nickel-base alloy (inconel alloy 600) used for the PWR steam generator heat transfer tubes. The conducted items of test were U-bending test (IGA/SCC generation test with U-bending specimens), double cantilever beam (DCB) test (IGA/SCC generation test with DCB specimens), slow strain rate test (SSRT) and steam generator (SG) model boiler test (boiling/heat transfer/corrosion test by model boiler). The result was as follows: In the high acidity or high alkalinity aqueous solution, the film is unstable on the alloy surface, and the IGA/SCC is generated under the existence of stress. From the result of stress analysis, it was revealed that with an increase in number of long cracks, the stress intensity factor drops. Even with an increase in number of short cracks, the stress intensity factor does not change. In the region (0 to 120kg/mm[sup 3/2]) of stress intensity factor acting on the heat transfer tube, there exists no domain where the crack propagates rapidly. From the SG model boiler test, the crack propagation rate was revealed to be as slow as 10[sup -3] to 10[sup -2][mu]m/h. 22 refs., 13 figs., 3 tabs.

  13. Development of 9CrW tube, pipe and forging for ultra supercritical power plant boilers; Boiler yo kokyodo 9CrW kokan oyobi tankohin (NF616) no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Ogami, M.; Mimura, H.; Naoi, H. [Nippon Steel Corp., Tokyo (Japan); Kinbara, S. [Daido Steel Co. Ltd., Nagoya (Japan); Fujita, T. [The University of Tokyo, Tokyo (Japan); Ikemoto, T.

    1997-02-07

    This paper describes development of 9CrW steel (NF616) for ultra-supercritical power plant boilers, and properties of the NF616 tube, pipe and forging. Chemical composition of NF616 is featured by including W which has not been added to previous heat resistant materials. W addition contributes to solid solubility and precipitation strengthening, and improves creep rupture strength. Metallic texture of NF616 is also based on tempered single-phase martensite texture to improve rupture strength and toughness. The high-temperature tensile test result showed that the NF616 tube, pipe and forging satisfy the minimum standard values of cold tensile characteristics enough, such as tensile strength of 620MPa, 0.2% proof stress of 440MPa and elongation of 20%. In the Charpy impact test after long time aging at 600{degree}C, the small and medium NF616 pipes showed the toughness more than 100J/cm{sup 2} at 20{degree}C which is sufficient for boiler materials. Even the large pipe and forging showed the toughness of nearly 200J/cm{sup 2} at 20{degree}C after heat treatment. 14 refs., 11 figs., 3 tabs.

  14. Simulation of power generating characteristics of a large PV array consisting of plural sub-arrays with different inclination and orientation; Taiyo denchi wo fukusuu no houikaku, oyobi keishakaku ni secchi shita taiyoko hatsuden arei no shumireshon

    Energy Technology Data Exchange (ETDEWEB)

    Matsukawa, H.; Kurokawa, K. [Tokyo University of Agriculture and Technology, Tokyo (Japan); Nakamura, H.; Sugiura, T. [Japan Quality Assurance Organization, Tokyo (Japan); Ishikawa, N. [Daido Hoxan Inc., Osaka (Japan)

    1998-12-05

    The electrical outputs from plural sub arrays with different inclination and orientation differs each other. In such cases, total array characteristics may give a large amount of mismatch losses. For estimating these losses, a basic method of calculation has been proposed by synthesizing some I-V curves. The curves are specified by such parameters as radiation, ambient temperature, wind direction, wind speed, position of the system and so on. A total plan of this work is also suggested in this paper. (author)

  15. Characteristics of contact resistance for Ag, Cu and Al spot contact under DC current flow of 300A; Gin, do oyobi arumi tensesshokushi no chokuryu 300A tsudenji ni okeru sesshoku teiko tokusei

    Energy Technology Data Exchange (ETDEWEB)

    Aichi, H. [Daido Institute of Technology, Nagoya (Japan); Matsumura, T. [Nagoya University, Nagoya (Japan); Miyachi, I. [Aichi Inst. of Technology, Aichi (Japan)

    1997-07-01

    The temperature rise of the contact spot by Joule`s heat under high current flow may result in the softening or welding of the contact materials. Contact resistances of Ag, Cu and Al spot contacts have been observed under the current flow of up to 300A DC. The contact resistances of Ag and Cu with clean surfaces were revealed to be kept constant independent of the magnitude of the applied current flow. On the other hand, contact resistances of Al and Cu with oxidized surfaces were greatly reduced with the increasing current flow. 7 refs., 5 figs., 2 tabs.

  16. 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)

  17. Influences of species of metals and supports on the hydrogenation activity of carbon-supported metal sulfides catalysts; Tanso biryushi tanji shokubai no suisoka kassei ni taisuru kassei kinzoku oyobi tantaishu no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Sakanishi, K.; Hasuo, H.; Taniguchi, H.; Nagamatsu, T.; Mochida, I. [Kyushu University, Fukuoka (Japan). Institute of Advanced Material Study

    1996-10-28

    In order to design catalysts suitable for primary liquefaction stage and secondary upgrading stage respectively in the multi-stage liquefaction process, various carbon-supported catalysts were prepared. Catalytic activities of them were investigated for the hydrogenation of 1-methylnaphthalene, to discuss the influences of metals and carbon species on the catalytic activity. Various water soluble and oil soluble Mo and Ni salts were used for NiMo supported catalysts. Among various carbon supports, Ketjen Black (KB) was effective for preparing the catalyst showing the most excellent hydrogenation activity. The KB and Black Pearl 2000 (BP2000) showing high hydrogenation activity were fine particles having high specific surface area more than 1000 m{sup 2}/g and primary particle diameter around 30 nm. This was inferred to contribute to the high dispersion support of active metals. Since such fine particles of carbon exhibited hydrophobic surface, they were suitable for preparing catalysts from the methanol-soluble metals. Although Ni and Mo added iron-based catalysts provided lower aromatic hydrogenation activity, they exhibited liquefaction activity competing with the NiMo/KB catalyst. 3 refs., 1 fig., 3 tabs.

  18. Effects of Cr, Mo, W, Mn and Ni on creep properties of 2. 25Cr-Mo-V rotor steel. 2. 25Cr-Mo-V tanko no creep tokusei ni oyobosu Cr, Mo, W, Mn oyobi Ni no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Kadoya, Y. (Mitsubishi Heavy Industries Ltd., Tokyo (Japan). Takasago Research and Development Center); Kitai, T.; Matsuo, A.; Tsuji, I. (Mitsubishi Heavy Industries Ltd., Tokyo (Japan)); Azuma, T.; Tanaka, Y. (The Japan Steel Works Ltd., Tokyo (Japan). Muroran Research Lab. ); Ikeda, Y. (The Japan Steel Works Ltd., Tokyo (Japan))

    1993-08-01

    2.2SCr-Mo-V rotor steel is developed and put into practical use as a high and low pressure suitable rotor steel and the gas turbine disk materials. In this study, the creep experiments subjected to stresses of the levels of 220, 250 and 280 MPa at 565[degree]C for 2.25Cr-Mo-V steel were carried out, effect of the alloying elements on creep properties was examined, and effect of the alloying elements on the precipitation of carbides was investigated. Main results obtained were as follows: Cr, Ni and Mn additions decreased the creep rupture strength of 2.25Cr-Mo-V steel, and W addition increased the creep rupture strength. Mo addition did not give a remarkable change on the seep rupture strength. Ni addition up to 1.8% did not exert a significant effect on the creep rupture strength, and its addition more than that value remarkably decreased the creep rupture strength. 20 refs., 12 figs., 2 tabs.

  19. Effects of Cr, Mo, W, Mn and Ni on toughness of 2. 25Cr-Mo-V rotor steel. 2. 25Cr-Mo-V tanko no jinsei ni oyobosu Cr, Mo, W, Mn oyobi Ni no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Kadoya, Y. (Mitsubishi Heavy Industries Ltd., Tokyo (Japan). Takasago Research and Development Center); Kitai, T.; Tsuji, I.; Matsuo, A. (Mitsubishi Heavy Industries Ltd., Tokyo (Japan)); Tanaka, Y.; Azuma, T. (The Japan Steel Works Ltd., Tokyo (Japan). Muroran Research Lab.); Ikeda, Y. (The Japan Steel Works Ltd., Tokyo (Japan))

    1993-08-01

    2.25Cr-Mo-V rotor steel is developed and put into practical use as a high and low pressure suitable rotor steel and the gas turbine disk materials. In this study, as a basic component of 2.25Cr-Mo-V steel, 12 kinds of alloys with the additions of Cr, Mo, W, Mn and Ni were made, the impact experiments were carried out, effect of the alloying elements on toughness was examined, and effect of the alloying elements on the precipitation of carbide was investigated. Main results obtained were as follows: Cr, Mo, Mn and Ni additions decreased the Bainite start temperature (Bs) of 2.25Cr-Mo-V steel, Cr and Ni additions decreased Fracture Appearance Transition Temperature (FATT), and Mn addition did not give a significant change on the FATT. Mo addition decreased the FATT, when this addition is more than 1.5%, the FATT was increased. W addition increased the FATT. 17 refs., 12 figs., 2 tabs.

  20. Studies on fluid drag measurement and fluid drag reduction of woman athlete swimming suit; Kyoeiyo mizugi no teiko sokutei ni kansuru kenkyu. Jintai mokei oyobi mizugi no ryutai teiko

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Y. [Mie University, Mie (Japan). Faculty of Engineering; Suzuki, T.; Suzuki, K. [Mie University, Mie (Japan); Kiyokawa, H. [Mizuno Corp., Osaka (Japan)

    1997-12-25

    Sport science progresses step by step in the world. This work is a challenge to develop the athlete woman swimming suit with low fluid drag. To begin with, the fluid drag of the woman swimming suit is very small. It is very difficult to measure the several percent difference in the fluid drag of the swimming suit. Special experimental apparatus is developed to measure the fluid drag, precisely. It can successfully measure the fluid drag of athlete woman swimming suits at the precision 1-2%. As a result, the cloth with low fluid drag is found. It is worked water repellent into every other stripe on the cloth. The cloth is woven of thin threads (polyester 80% and polyurethane 20%). Also, the relationship between fluid drag for the model body and the water depth from the water surface to the model body is investigated in details. 2 refs., 16 figs.

  1. 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.

  2. 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)

  3. 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.

  4. 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)

  5. 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)

  6. 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)

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

    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)

  8. 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.

  9. 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.

  10. Fiscal 1997 feasibility survey of an environment friendly type coal utilization system. Feasibility survey of the environment friendly type coal utilization system in Malaysia and Vietnam (case of Vietnam); 1997 nendo chosa hokokusho. Kankyo chowagata sekitan riyo system kanosei chosa (Malaysia oyobi Vietnam ni okeru kankyo chowagata sekitan riyo system kanosei chosa (Vietnam ban))

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The paper grasped the state of coal utilization by coal consumption field, the state of coal physical flow in Vietnam, etc., surveyed/studied a possibility of introducing the environment friendly type coal utilization system, and assessed the possibility. As to energy resources, the north is abundant in hydroelectric and coal (mainly anthracite) resources, and the south in oil and natural gas resources. Coal production in fiscal 1997 is planned to be 10 million tons. Coal preparation technique presently available is only grain size sieving. Accordingly, it is necessary to study for heightening efficiency of facilities and modernizing facilities in accordance with the introduction of the environment friendly type coal utilization technology. During the study, it is possible to propose improvement on coal processing technology (coal preparation technology). Assessment and study are made especially of the coal selection system, fine coal recovery system and waste water treatment system. For the plan on new coal-fired power plants (300MWtimes4), there is left much necessity of proposing studying models considered of the anthracite combustion technology and environmental improvement and of assessing/studying them. 60 figs., 117 tabs.

  11. 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)

  12. 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)

  13. Preparation and oxidation resistance of carbon/ceramic composites prepared from phenolic resin, B(OH)3 and Si(OC2H5)4; Phenol jushi, B(OH){sub 3} oyobi Si(OC{sub 2}H{sub 5}){sub 4} wo mochiiru tanso/ceramics fukugo zairyo no chosei taisankasei

    Energy Technology Data Exchange (ETDEWEB)

    Ueno, S. [Industrial Tech. Center of Okayama Prefecture, Okayama (Japan); Kameda, K. [Nakamura Refactories Co. Ltd., Okayama (Japan); Yu, J.; Hiragushi, K. [Okayama Ceramics Research Foundation, Okayama (Japan); Miura, Y. [Okayama Univ. (Japan)

    1998-07-01

    For a binding agent of the carbon containing refractories, phenolic resin and pitch are widely used. Carbon forming by heat treatment of these binding agents has different crystallization and oxidation resistance due to kinds and additives of raw materials. In general, carbon obtained by thermal decomposition of phenolic resin has inferior crystallization and worse oxidation resistance to that from pitch. Conventionally, in order to provide oxidation resistance to carbon material, for example, a method to increase crystallization of the carbon material by adding B4C, a method of coating the carbon material with oxide system coating film and so on are investigated. In this study, for raw materials of carbon materials and coating film forming materials phenolic rein and B(OH)3 and Si(OC2H5)4 were used respectively to make organic/inorganic composites, to conduct their heat treatments at 1300-1900degC and to prepare carbon/ceramic composites. As a result of investigation on oxidation resistance and so forth of these composites, the composite was thought to be more effective than a method to graphitize carbon. 9 refs., 8 figs.

  14. FY 1995 basic research to develop instruments for diagnosis of atherosclerosis on the basis of autofluorescence analysis of blood and vascular walls; 1995 nendo ketsueki oyobi kekkanheki no jiko keiko bunseki ni yoru domyaku koka shindan kiki kaiahtsu no tame no kisoteki kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    To obtain the basic data to develop instruments for diagnosis of atherosclerosis and to elucidate the mechanisms of atherogenesis by focusing on the autofluorescence of blood and vascular walls of atherosclerotic animal models and human patients. We have performed experiments to examine the relationships between autofluorescence of blood and vascular walls of guinea pig atherosclerotic model and human patients and obtained the following results. 1. The autofluorescence from human atherosclerotic aorta included the components with longer wave length than normal aorta, suggesting that diagnosis of atherosclerotic aortic walls will be possible using spectroscopic analysis through glass fiber catheter into vascular system. Further studies should be needed to the quantitative diagnosis. 2. The autofluorescence from blood plasma of human atherosclerotic patients has showed that the peak wave length was shorter than that of normal plasma. This phenomenon was mainly caused by the oxidization of plasma, especially lipoproteins, LDL and HDL. 3. Atherosclerotic model of the guinea pigs was quite similar to human atherosclerosis at the points of cholesterol levels and localization of lipid deposit to arterial walls, and showed to be useful for the studies of atherosclerosis. (NEDO)

  15. Evaluation of dynamic properties of soft ground using an S-wave vibrator and seismic cones. Part 2. Vs change during the vibration; S ha vibrator oyobi seismic cone wo mochiita gen`ichi jiban no doteki bussei hyoka. 2. Kashinchu no Vs no henka

    Energy Technology Data Exchange (ETDEWEB)

    Inazaki, T. [Public Works Research Institute, Tsukuba (Japan)

    1997-05-27

    With an objective to measure a behavior of the surface ground during a strong earthquake directly on the actual ground and make evaluation thereon, a proposal was made on an original location measuring and analyzing method using an S-wave vibrator and seismic cones. This system consists of an S-wave vibrator and a static cone penetrating machine, and different types of measuring cones. A large number of measuring cones are inserted initially in the object bed of the ground, and variation in the vibration generated by the vibrator is measured. This method can derive decrease in rigidity rate of the actual ground according to dynamic strain levels, or in other words, the dynamic nonlinearity. The strain levels can be controlled with a range from 10 {sup -5} to 10 {sup -3} by varying the distance from the S-wave vibrator. Furthermore, the decrease in the rigidity rate can be derived by measuring variations in the S-wave velocity by using the plank hammering method during the vibration. Field measurement is as easy as it can be completed in about half a day including preparatory works, and the data analysis is also simple. The method is superior in mobility and workability. 9 figs.

  16. Response characteristics of a long life type floating offshore airport in waves. 3rd Report. Response due to short waves and an attempt of active inclination control; Chojumyogata futaishiki kaijo kuko no harochu oto tokusei. Tanhachoiki no oto oyobi shisei seigyo no kokoromi

    Energy Technology Data Exchange (ETDEWEB)

    Hirayama, T.; Ma, N.; Nishio, O.; Sato, N. [Yokohama National University, Yokohama (Japan). Faculty of Engineering

    1996-12-31

    Notice was given on response characteristics in a short wavelength range of a large floating structure for an offshore airport consisting of semi-submersible replaceable type units, and influence of unit lacking. An attempt was also made on performing restoration of inclination change during unit lacking and suppression of long-cycle variation in waves by using air pressure control. The result of a numerical calculation based on a three-dimensional singular point method may be summarized as follows: mass force added vertically on columns in short wavelength range differs in the outer edges and the central part; relatively uniform values are shown in the central part; and interactive interference is recognized in wave forces in the vertical direction, but the influence therefrom decreases as the wave length decreases. Calculations on vertical movements and bending moments in waves were performed by using a mode synthesizing method. The calculations used fluid force which was calculated based on the three-dimensional singular point method utilizing symmetry with respect to each condition for a complete model plus unit lacking and unit lacking plus inclination control. As a result of verifying the calculations by using an experiment, relatively good agreement was achieved in either case. A high-frequency vibration experiment made clear the characteristics of elastic response in the short-wave length range. 14 refs., 14 figs.

  17. FY 1998 survey report on the potential study of cooperation related to the activity implementation joint in 6 countries of Southeast Asia (Vietnam, Laos, Cambodia, Myanmar, Thailand and Malaysia); 1998 nendo Indoshina 6 kakkoku (Vietnam, Laos, Cambodia, Myanmar, Tai oyobi Malaysia) ni okeru energy kankyo kanren kyodo kenkyu jisshi kanosei chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    A potential study in FY 1998 was made of the energy/environment related activity implementation joint (COP3 related AIJ) in 6 Southeast Asian countries. Vietnam is a country which is the lowest in greenhouse effect gas (GHG) emission in the world, but they want the international assistance for their continued development and contribution to the global environment. Laos has to continue their economic development for extermination of poverty and improvement of life level. Accordingly, AIJ has to be the one that supports those and is helpful for both industrial development and environmental improvement. The same in Cambodia as in Laos, AIJ has to be the one that is helpful for both industrial development and promotion of environmental improvement. In Myanmar, GHG emits (CO2 conversion) 94.5% in the agricultural sector where methane is emitted from livestock and rice growing. There, the forest protection plays a big role. In Thailand, the use of land and forest protection are subjects mainly with the heightening of energy efficiency and fuel substitution. Malaysia, of course, promotes the economic development, has the leading GHG policy (traffic management in urban area, etc.), and wants the international technology transfer. (NEDO)

  18. Research report for fiscal 1998. Industrial circles' evaluation of the outcome of COP3 and their response thereto (France); 1998 nendo chosa hokokusho. COP3 no kekka ni taisuru sangyokai no hyoka oyobi kongo no taio ni tsuite (France)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Since the CO{sub 2} emission reduction cost is high under the COP3 (Third Session of the Conference of the Parties to the United Nations Framework Convention on Climate Change) rulings, they have made it clear that they will positively resort to the flexibility mechanism. This is to reserve a room for freely selecting power generation methods other than nuclear technologies with their nuclear power plants scheduled for renovation in the neighborhood of 2010. But the industrial circles are slow in responding, failing to accept the carbon fund concept. As for measures for greenhouse gas emissions reduction, since they depend on energy saving for their success, the response specially of the transportation division will be the key. In the industrial division, success depends on a voluntary consensus among industries that consume much energy. As steps to economize the trend of people's energy consumption, an energy tax and environmental tax are scheduled to be imposed. An overall program for greenhouse gas emission reduction is being drafted by a government committee, with the outline to be made known in May 1999 for finalization in autumn the same year. A power market liberalization bill has already been prepared, and a decision will soon be made on a plan for the second phase targets. France with take part in COP5, Bonn, Germany, with a general proposal carrying what are stated above. (NEDO)

  19. Fundamental sutdy of aluminothermic reduction of niobium oxide and zirconium oxide. 1st Report. ; Production of Nb-Zr alloy by aluminothermic reduction-electron beam refining. Samka niobium oyobi sanka zirconium no aluminium thermit kangen ni kansuru kiso kenkyu. 1. ; Aluminium thermit kangen-denshi beam yokai seirenho ni yoru Nb-Zr Kei gokin no seizo

    Energy Technology Data Exchange (ETDEWEB)

    Uejo, S.; Numa, K. (Nippon Mining Co. Ltd., Tokyo (Japan))

    1991-10-25

    Noting on the Nb{sub 2}O{sub 5} aluminothermic reduction (ATR) regarded as an efficient method of refining Nb, a small ATR experiment was carried out on mixed oxide of Nb{sub 2}O{sub 5} and Nb{sub 2}O{sub 5}/ZnO{sub 2}. A good separation of metal from slag was obtained by means of performing an ATR with the method of heating the entire reaction system or compensating the heat by adding KC10{sub 3} into the material. The Al, Zr and oxygen concentrations in the metal obtained from an ATR method are related with each other. To raise the Zr concentration in the metal, the Al concentration in the metal must be raised. It was found in the ATR of the Nb{sub 2}O{sub 5}/ZrO{sub 2} mixed oxide that the Zr concentration in the metal can be increased by increasing the excess Al and raising the ZrO{sub 2} mix. It was revealed from the above result that the ATR of mixed oxide of Nb{sub 2}O{sub 5}/ZrO{sub 2} can manufacture Nb-Zr containing Zr at more than 1%. 13 refs., 7 figs., 6 tabs.

  20. Achievement report on project in fiscal 2000 of public appeal for proposal of international joint research (new industry - No.1). Development of technology to immortalize human cells by co-expression of mortalin and telomerase; 2000 nendo kokusai kyodo kenkyu teian kobo jigyo seika hokokusho (shinki No.1). Mortalin oyobi telomerase no kyohatsugen ni yoru hitosaibo fushika gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Researches have been performed on development of a technology to immortalize human cells by co-expression of mortalin and telomerase. The technology was adopted in the public appeal for proposal of international joint research. This paper summarizes the achievements thereof. The research has standardized a method to establish co-expression cell strains of mortalin genes and telomerase genes. Expressing the h TERT genes alone normally was not sufficient to cause immortalization in human fibroblasts. Furthermore, it was found in many cell strains that the co-expression of LTAg and h TERT is not sufficient to immortalize their cells. Expressing SV40stAg simultaneously in these cell strains was proved to have induced the immortalization highly efficiently. Introducing the mot-2 gene in place of virus antigen has resulted in acquisition of human cells regarded immortalized. It was concluded that suppressing initially the action of p53 by using mot-2 initially the immortalization due to the h TERT introduction. (NEDO)

  1. Characterization of angle shape rolling by three-dimensional FEM. 4. ; Analysis of multi-pass angle shape rolling and comparison with experiment with plasticine. Katazai atsuen no henkei fuka tokusei ni kansuru kenkyu. 4. ; Ta pass angle atsuen no FEM kaiseki oyobi plasticine jikken tono hikaku

    Energy Technology Data Exchange (ETDEWEB)

    Yanagimoto, J.; Kiuchi, M.; Shibata, K. (The University of Tokyo, Tokyo (Japan). Institute of Industrial Science)

    1993-10-01

    This paper reports FEM analytical examples of multi-pass angle rolling. The CORMILL system that can analyze three-dimensional plastic transformation of a material under angle shape rolling (developed by the authors of this paper) was used on a process that processes an angle material from shaping to finish-rolling in six passes. Transformation in each pass was derived from analysis of velocity fields and contact analysis (correction of geometrical non-match between a roll and the material). The analytical result was compared with the result of model experiments using plasticine. A cross section shape after completing the first pass obtained from the analysis was compared with a shape obtained from a hot steel-rolling experiment using a hole die of the similar type. The paper describes as a conclusion that little difference was found between the analytical result and the result of the hot steel-rolling experiment, and that the difference between the result of the model experiment using plasticine and the analytical result should have been caused from transformation behavior which is particular to plasticine. 16 refs., 8 figs., 4 tabs.

  2. Fiscal 1997 report on the results of the international standardization R and D. Study of safety of laser and light emitting diodes (LED) for human body; 1997 nendo seika hokokusho kokusai hyojun soseigata kenkyu kaihatsu. Laser, oyobi hakko diode (LED) ni taisuru jintai eno anzensei no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    LD and LED are used in a wide range from telecommunication systems to residential/commercial equipment. Optical semiconductor devices existing in the domain between LD and LED are also being commercialized. In the field of this project, there are a lot of contradictions about the international standards. For the purpose of promoting the common understanding of standards and improving the consistency, the paper examined mainly safety, principles of motion and various applications of laser and LED, and developed international standards for the output measuring method. At the same time, the paper systematically studied the biological safety, determined regulatory values which were backed up as safety standards, and proposed/worked out a draft for new international standardization for safety of LED. Further, by the definition of laser in general, standards related to a lot of TCs among ISO and IEC standards were harmonized for the common understanding on the basis of a common idea. 40 refs., 163 figs., 6 tabs.

  3. Development of technologies to prevent fish diseases by vaccination. 2. Effect of preparation method and administer dose on a vaccine against dewardsiellosis of Japanese flounder; Wakuchin ni yoru gyobyo yobo gijutsu no kaihatsu. 2. Hirame no edowarajesho ni taisuru wakuchin no choseiho oyobi toyoryo no kento

    Energy Technology Data Exchange (ETDEWEB)

    Furuta, T.; Kikuchi, K.; Iwata, N.

    1999-09-01

    Immunization experiments were conducted to decide optimum administer condition of injection vaccine against edwardsiellosis of Japanese flounder. Effect of the vaccine was estimated with challenge test, exposing the flounder to live Edwardsiella tarda after about 1 month of vaccination. 1) At the same dose formalin-killed vaccine was more effective than heat-killed. Growth of the fish, injected heat-killed vaccine at a dose of 100 mg per 100 g of fish weighing was inferior to control, however, E. tarda were not re-isolated from all the survived fish in the challenge test. Incubation and starvation time of bacterial cultivation, 24 to 96 h and 0 to 48 h, respectively, did not change the effect of formalin-killed vaccine. Among the experimental groups, the largest quantity of bacterin was obtained after 48 h of incubation and 0 h of starvation. 2) The optimum administer dose of formalin-killed vaccine was around 10 mg per 100 g of fish weighing, however. E. tarda were re-isolated from survived fish after challenge test. The duration of protective immunity was about 90 days. (author)

  4. Report on the survey in fiscal 1998. Evaluation by the industry on the result of COP3 and the future activities (Germany); 1998 nendo chosa hokokusho. COP3 no kekka ni taisuru sangyokai no hyoka oyobi kongo no taio ni tsuite (Doitsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    A survey was carried out on activities taken in Germany. The industry has a strong opinion to take voluntary regulations rather than those by laws. The nation's activities are being moved forward centrally with the suppression policies that follow the declaration on the voluntary regulation by the German industry to prevent global warming, which had been submitted by the German Industry Federation to the federal government in 1996. The participation to the declaration, which is optional, covers 71% of the energy consumption by manufacturing industries and 99% of the public electric power consumption, but large-scale industrial departments such as machine and electric power sectors who have not participated can also been found. The plan calls for reduction of inherent CO2 and energy per added value production amount in the entire industry by as much as 20% of the result in 1990 by 2005. According to the third party monitoring system employed by the federal government, the industry submits results of periodical analyses to the government. According to the result, the industries participated in the voluntary regulation have achieved annual exhaust suppression of 42 million tons during the period of 1990 to 1996. The public electric power industrial department whose CO2 emission accounts for a little less than 30% of the nation's total emission amount has a great effect. The industry is making efforts to improve the power generation efficiency aiming at reduction of CO2 emission of 12% of the 1990 result by 2015. (NEDO)

  5. Fiscal 1980 Sunshine Project research report. Development of hydrothermal power plant. Development of binary cycle power plant (Research on heat cycle, heat medium, material and heat medium turbine); 1980 nendo nessui riyo hatsuden plant no kaihatsu seika hokokusho. Binary cycle hatsuden plant no kaihatsu (netsu cycle oyobi netsubaitai no kenkyu, zairyo no kenkyu narabini netsubaitai turbine no kenkyu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1981-03-01

    This report summarizes the fiscal 1980 research result on each element of the next 10MW class geothermal binary cycle power plant, following last year. In the research on heat cycle and heat medium, measurement was made on the liquid density, vapor density, liquid specific heat, vapor specific heat and thermal conductivity of 8 heat media to prepare the precise pressure enthalpy chart. The thermal stability of each medium was also measured under a flow condition. The heat cycle of each medium was calculated in a hydrothermal temperature range of 120-160 degrees C for evaluation of its output. In the research on material, field corrosion test and laboratory simulation were made on 3 kinds of heat exchanger martials for acidic hot water to study the corrosion behavior of welding members. In the research on heat medium turbine, study was made on sealing characteristics such as differential pressure, flow rate and friction of sealing oil for oil film seal and mechanical seal as shaft seal devices of heat medium turbines for the 10MW class geothermal plant. (NEDO)

  6. Fiscal 1974 Sunshine Project result report. R and D on solar cooling/heating and hot water supply system (R and D on the system for existing detached houses); 1974 nendo taiyo reidanbo oyobi kyuto system no kenkyu kaihatsu seika hokokusho. Kison kojin jutakuyo system no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1975-05-28

    This report describes the fiscal 1974 research result on solar cooling/heating and hot water supply systems for existing detached houses. The program for calculating heat collection rates was prepared by integrating peripheral conditions and every calculation step of heat collection rate, mean value, accumulated value and changes caused by disturbance. The cooling/heating load calculation program was also prepared for unsteady dynamic thermal analysis of houses. Another program was prepared for hot water supply load because of a large difference in life pattern. The profitability and energy conservation of 644 systems different in heat source, heat discharge, heat collection, heat storage, auxiliary heat source and equipment were evaluated by heat balance calculation program. Survey and study were also made on various heat engines such as heat pump, absorption refrigerator and Rankine cycle engine. Based on the survey result on existing technology for plane collectors, the optimum design method of collectors were established through various characteristic tests. Some kinds of suitable fusion latent heat type heat media were selected, and their operation stabilities were studied. (NEDO)

  7. FY 1977 Annual report on Sunshine Project results. Research and development of solar energy systems for air conditioning and hot water supply (Research and development of systems for large buildings); 1977 nendo taiyo reidanbo oyobi kyuto system no kenkyu kaihatsu seika hokokusho. Ogata kenchikubutsuyo system no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1978-03-31

    This project is aimed at development of (1) devices for solar energy systems for air conditioning and hot water supply, and (2) low-cost, safe systems incorporating the above devices, which are easily inspected and maintained, in which optimum buildings for effective utilization of solar energy are also investigated. Precision of the system analysis is improved by feeding back the results obtained by the basic studies conducted so far into the simulation. The technical supports for commercialization of heat collectors, refrigerators, heat-storage tanks and radiation type ceilings are also obtained. These results are combined for the designs of a real-size test building. In this year, works to install the facilities in the Oita University's test building are completed. These facilities include 40 units of large-size heat collectors (each approximately 2 m by 7.5 m in size); an absorption refrigerator of 30 uSRT in which single- and double-effect systems are combined; 2 piston-flow type heat-storage tanks, each 45 m{sup 3} in capacity; and others including analyzer, associated piping, duct, instrumentation and electrical systems. The test runs are conducted for the control systems, and long- and short-term instrumentation systems to draw the test schedules for optimizing the full-scale runs to be conducted in the next year. The operating and instrumentation manuals, and operating schedules are also drawn. (NEDO)

  8. Vapor-liquid equilibria of minute amounts of {beta}-phenethyl alcohol, {beta}-phenethyl acetate and ethyl esters of low fattu acids in ethyl alcohol aqueous solution; Etanoru suiyoekichu no biryo no {beta}-fenechiru arukoru, sakusan {beta}-fenechiru oyobi teikyu shibosan echiruesuteru rui no kieki heiko

    Energy Technology Data Exchange (ETDEWEB)

    Hatate, Y.; Aiko, R.; Taniguchi, K.; Uemura, Y. [Kagoshima Univ., Kagoshima (Japan). Faculty of Engineering; Kashiwada, M. [Kagoshima Univ., Kagoshima (Japan). Faculty of Engineering; Kawano, M. [Miyazaki Univ., Miyazaki (Japan). Faculty of Engineering; Omori, T.; Shimoda, M. [Sanwa Shurui Co. Ltd., Oita (Japan)

    1997-05-10

    Equilibrium ratios of minute amounts of ethyl n-carpet, ethyl n-carpet, ethyl n-laurate, {beta}-phenethyl alcohol and {beta}-phenethyl acetate in ethanol aqueous solution were measured to obtain the following results. 1. Constant equilibrium ratio was confirmed below the concentration of 10{sup -2} mole fraction for each minute component in ethanol. 2. It was obvious from the measurements of equilibrium ratios of each minute component in ethanol aqueous solution that equilibrium ratios of each minute component are independent of its concentrations below 800 ppm, and increase with decreasing ethanol concentration in the same manner as the other minute components in Shochu mash. 10 refs., 3 figs., 3 tabs.

  9. Ab Initio MO study on the nucleophilic oxirane ring opening of exo and endo Aflatoxin B{sub 1} 8,9-Oxide; Ekiso oyobi endo Aflatoxin B{sub 1} 8,9-Oxide no kyukaku kaikan hanno ni taisuru Ab Initio ho ni yoru kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Okajima, Toshiya; Hashikawa, Akane [Saga University, Saga (Japan). Department of Chemistry

    1999-08-10

    The difference of the reactivity for S{sub N}2 type oxirane ring opening of exo and endo Aflatoxin B{sub 1} (AFB{sub 1}) 8,9-oxide (exo-1 and endo-1, respectively) was analyzed with ab initio molecular orbital theory. All stationary points including transition-state structures were optimized with no geometry constraint at the RHF/3-21G basis set, and energies were evaluate at Becke3LYP/3-21G level based on the RHF/3-21G geometries. The calculation clarified the following three points: (1) the activation energy ({delta}E{sup {ne}}) for endo attacking of NH{sub 3} molecule (the reaction with exo derivatives containing exo-1) is considerably smaller than those for exo attacking (the reaction with endo ones containing endo-1), (2) the reactivity for nucleophilic oxirane ring opening is controlled by the distortion of LUMO{sub C-O} of oxirane ring, which is probably caused by exo/endo relationship between oxirane ring and five-membered dihydrofurano ring (B) with respect to A ring, and (3) the remaining part (inclusing coumarin skeleton) of AFB{sub 1} oxid has little influence on the geometry around the reaction center and the activation energy. (author)

  10. Fiscal 1974 Sunshine Project result report. R and D on solar cooling/heating and hot water supply system (R and D on the system for large buildings); 1974 nendo taiyo reidanbo oyobi kyuto system no kenkyu kaihatsu. Ogata kenchikubutsuyo system no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1975-05-28

    Large buildings such as government office building, private office building and gymnasium are consuming a huge amount of fossil fuel as energy for cooling/heating and hot water supply. The final target of this project is a use of solar heat as energy for such systems in place of fossil fuel. The fiscal 1974 target of this project is as follows. The main part of the computation program was developed for system analysis on the whole thermal system composed of building structure, thermal load, and cooling and heating equipment. The small experimental thermal equipment and artificial light source were prepared to clarify the mechanism of solar heat collectors experimentally. As the first step of innovative refrigerator development, the small trial experimental equipment was prepared to clarify heat transfer characteristics for coolant recycling, and to develop an ideal structure heat exchanger possible to reduce the temperature difference between heating medium and heated liquid. Prior to development of a heat storage equipment, basic study was made on heat storage materials, heat insulation methods and characteristics of heat storage tanks. (NEDO)

  11. FY 1999 report on the potential survey of implementation of a model project on cement sintering waste heat (preheater and clinker cooler) recovery power generation facilities in the Philippines; 1999 nendo chosa hokokusho. Firipin ni okeru cemento shosei hainetsu (Pre heater oyobi kurin ka kura) kaishu hatsuden setsubi model jigyo jisshi kanosei chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of conserving energy and reducing greenhouse effect gas emissions, investigational study was made of the power generation using the waste heat recovered from cement plants in the Philippines. At cement producing plants, approximately 30% of the energy being consumed in the cement sintering process is released into the air. In this project, this heat energy is recovered by boiler and used for power generation. The equipment to be introduced is exhaust heat recovery boiler, steam turbine/generator and the other accessory equipment. The potential survey for implementation of this project was conducted for Trans-Asia Power Generation Corp. (TAP), subsidiary of HI Cement Corp., Solid Cement Corp. and Apo Cement Corp. The results of the investigational study indicated that Solid Cement Corp. was the most suitable in aspects of technology and others. Top management of the CEMEX group also intended to regard Solid Cement Corp. as a company for implementing the project. As a result of the discussion, however, the company expressed their negative opinion about the participation in the project. The situation of materialization of the model project became very difficult. (NEDO)

  12. Effects of quenching and tempering temperature on microstructure and hardness of P/M tool steel for hot working; P/M ho de sakuseishita SKD6 netsukan koguko no soshiki to katasa ni oyobosu yakiire oyobi yakimodoshi ondo no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Yokoi, D.; Tsuji, N.; Fukaura, K.; Sunada, H. [Himeji Institute of Technology, Hyogo (Japan); Abe, G. [Sanyo Special Steel Co. Ltd., Hyogo (Japan)

    1995-04-15

    The SKD6 is a 5% Cr-Mo-V based hot-working tool steel specified in JIS standard, and used as a hot-working press die material. However, the rolled materials made by using the conventional melt manufacturing process (abbreviated to I/M process) have non-uniformity caused from banded structure in the rolling direction, which affects adversely the strength characteristics. This paper describes comparisons and discussions on effects of quenching and tempering temperature on microstructure and hardness by using extruded materials made by the powder metallurgy process with very little demixing (abbreviated to P/M process). The result obtained may be summarized as follows: the SKD6 made by the P/M process had a homogenous structure with carbides distributed uniformly; the temperature that starts the old austenite crystalline particles to grow coarser as a result of rising quenching temperature was found higher by more than 50K in the P/M materials, with the particle growth more suppressed than in the I/M materials; both materials had the hardness increased with rising quenching temperature, having reached a constant value at temperatures higher than 1350K; and the quenching and tempering hardness was slightly lower in the P/M materials. 4 refs., 6 figs., 1 tab.

  13. FY 1999 report on the potential survey of the environmentally friendly type coal utilization system - Dispatch of engineers. B. Seminar for the spread of clean coal technology (CCT) and technology exchanges; 1999 nendo kankyo chowa gata sekitan riyo system kanosei chosa. Senmonka haken B. clean coru technology (CCT) fukyu no tame no seminor oyobi gijutsu koryu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of contributing to the improvement of coal utilization technology and environmental protection in developing countries, the seminar for spread of clean coal technology (CCT) was held in Vietnam and China. As to Vietnam, potential survey of the environmentally friendly type coal utilization system in the country was made from FY 1996 to FY 1998. This seminar was carried out with the aim of supporting the spread/promotion of CCT in Vietnam. The items discussed were the NEDO business report, coal briquette production technology, coal pulverization/combustion technology in coal-fired boiler, circulating fluidized bed boiler, flue gas desulfurization technology, fluidized bed cement sintering technology, etc. As to China, the items discussed were the GAP model project in the CCT field of Japan-China environmental cooperation, coal pulverization/combustion technology and coal-fired boiler, fluidized bed cement sintering system, development of technology to synthesize DME from coal mine methane and coal, technology of coal briquette production technology, flue gas desulfurization technology, etc. (NEDO)

  14. Reactive transport model of multiple air pollutants in non-conservation system and its application to prediction of the concentrations of benzene and toluene in the atmosphere; Taseibun taiki osen busshitsu no hihozongata yuso hanno model to sono benzene oyobi toluene nodo yosoku eno oyo

    Energy Technology Data Exchange (ETDEWEB)

    Iinuma, K. [Tohoku University, Sendai (Japan)

    1998-07-10

    A general reactive transport model in non-conservation systems is developed, in order to elucidate the phenomena involved in the transport and reactions of multiple pollutants, and applied to prediction of concentrations of benzene and toluene in the atmosphere. The single pollutant model is used to analyze the processes of benzene formation, transport, diffusion and removal, which gives an estimated maximum equilibrium concentration of around 23{mu}g/m{sup -3}. Next, the two-pollutant model, which considers the transport and forward/reverse reaction processes for 2 types of pollutants, is developed to analyze a toluene/cresol system. The results indicate that the steady-state concentration distributions change, competing with the forward reaction. Finally, the 4-pollutant model, which can analyze the transport and 12 reaction processes, is developed to analyze the conversion process of toluene into benzaldehyde, with 2 intermediate radical species and 6 reaction rate constants. There is a dynamic equilibrium in the spatial concentration distributions in a 30 to 80km area, 10h after evolution of toluene. 22 refs., 7 figs., 2 tabs.

  15. Lubrication condition between the piston and cylinder for low-speed ranges of swashplate type axial pistons pump and motors. ; Spin of the piston and its influence. Shabanshiki axial piston pump-motor no teisokuji ni okeru piston-cylinder kan junkatsu jotai. ; Piston no jikukaiten oyobi sono eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Yi, F. (Nagaoka Univ. of Technology, Niigata (Japan). Graduate School); Ikeya, H. (Nagaoka Univ. of Technology, Niigata (Japan). Faculty of Engineering)

    1992-07-15

    In order to decrease the friction and abrasion between the piston and cylinder expecting the performance rise of the pump and motor, it is necessary to grasp the lubrication status exactly while the actual machineries are operating in practical use. In this paper, as to the swashplate type axial piston pumps and motors, the measurement of spinning of piston was tried, and consequently its spinning was clarified, and subsequently the lubrication conditions between the piston and cylinder were observed and evaluated in the form of the free spinning piston motion. And then the influence of piston spinning was considered by comparing it with the measurement results when reciprocating only in the longitudinal direction. In consequence, the followings were found: The piston rotates always during operation, and is affected by the rotation number of swashplate axis N, and moreover while the spinning rate of piston N[sub p]/N increases along with an increase of N up to 10 rpm, it approaches to about 1 when N exceeds 10 rpm; In addition, the optimum radial clearance exists in the motor process, and so forth. 16 refs., 13 figs., 5 tabs.

  16. FY 1998 results of the intellectual basement project using functions of private companies (venture promotion type basement creation R and D project). Development of endocrine disrupter testing method and development of environmental assessment method; 1998 nendo naibunpi kakuran busshitsu ni taisuru shiken hoho kaihatsu oyobi eikyo hyoka shuho kaihatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of assessing the risk in relation to endocrine disrupting chemicals, the following were conducted: development of testing/assessment method for endocrine disrupting chemicals, survey of the actual exposure assessment, development of measuring method for the concentration in the environment. In the development of the testing method, the following were carried out: development of a high-throughput screening method for evaluating endocrine disrupting chemicals; as screening testing method using mammals, uterotrophic assay, Hershberger assay using castrated male rats, thyroid hormone assay in pubertal rats, enhanced OECD 407 test guideline for 28-day toxicity test; study on yeast two-hybrid assay for endocrine disrupter; sex-reversal assay for suspected endocrine disrupting chemicals using S-rR strain medaka. In the development of exposure assessment method, estrogenic potency of individual nonylphenol congeners isolated from technical mixtures; determination of endocrine disrupters and related chemicals from industry and nature origin in river water and sediment; research for the flow of industrial origin chemicals; reconstruction of pollution history of chemicals using sediment cores. (NEDO)

  17. FY 1999 development of a technology to recycle fabric products. Development of recycle technology for wool products and use of reclaimed fiber; 1999 nendo sen'i seihin recycle gijutsu kaihatsu seika hokokusho. Wool sen'i no saisei oyobi riyo ni kansuru gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Experimental equipment was fabricated and an experiment was carried out to evaluate the performance of recycle wool heat insulating materials. In the test on the performance of ordinal housing use heat insulating materials, used was JIS A 1420 'heat insulation measuring method for architectural use structural materials.' The heat insulating material of 910 x 1,820mm in size was used according to the size of the construction material. The experimental equipment was fabricated with the 'method of calibration heat box with a small heating area' described in JIS A 1420 Attachment B as reference, and the size is 300 x 300mm. In the experiment, the following results were obtained. Even in the case of using a specimen smaller in size than 900 x 900mm, it is possible to make the relative insulation evaluation. The recycle wool heat insulating materials have the heat insulation equivalent to or more than the glass wool heat insulating materials. Further, even if they are equal in weight, the thicker the material is, the higher the heat insulating performance becomes. The recycle wool heat insulating material has moisture absorption/release against the environmental humidity the same as wool does. Changes in environmental humidity have effects on the performance of heat insulating materials. How influential the environmental humidity is depends on characteristics of material. (NEDO)

  18. Fiscal 2000 achievement report on the investigation of alternative gas system and process technologies for dry etching in electronic device manufacturing; 2000 nendo denshi device seizo process de shiyosuru etching gas no daitai gas system oyobi daitai process no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Efforts are made to develop technologies for saving PFC (perfluoro-compound) and conserving energy in semiconductor manufacturing processes, in particular, in the layer insulation film (SiO{sub 2}) dry etching process. Activities are conducted in the five fields of (1) research and development of technologies for reducing the amount of etching gas consumption, (2) development of a dry etching technology using alternative gas, (3) development of a dry etching technology using a low dielectric constant layer insulation film, (4) research and development of novel wiring structures and a method for fabricating the same, and (5) re-entrusted studies. Conducted in field (5) are studies of novel alternative gas - solid sources to substitute PFC, theory design technologies for low dielectric constant organic macromolecules, low dielectric constant material film fabrication by CVD (chemical vapor deposition), and technology for optical wiring inside chips. In field (2), studies are conducted of low GWP (global warming potential) alternative PFC gas aided etching and decomposition prevention technologies for reduction in PFC emissions, and it is made clear that C{sub 4}F{sub 6} performs excellently as an etchant. (NEDO)

  19. Effect of processed oils and fats on cholesterol metabolism. III. ; Comparison of the effects of palm oil, hardened soybean oil and cacao butter. Kako yushi no cholesterol taisha ni oyobosu eikyo. (3). ; Palm yu to koka daizuyu oyobi cacao abura tono eikyo no hikaku

    Energy Technology Data Exchange (ETDEWEB)

    Murakami, C.; Chimi, K.; Kanematsu, H.; Niiya, I. (Japan Institute of Oils and Fats, Other Foods Inspection, Foundation, Tokyo (Japan)); Shimura, M. (Japan Margaruibe, Shortening and Lard Industries Association, Tokyo (Japan)); Mizutani, H. (Ueda Oils and Manufacturing Co. Ltd., Kobe (Japan)); Hirai, C. (Nihon University, Tokyo (Japan). College of Industrial Technology)

    1991-09-20

    Effects on cholesterol contained in serum lipids, levers and feces of rats and the metabolism were compared between palm oil, hardened soybean oil and cacao butter. In addition, the relations to the physical and chemical properties of these oils were also studied. In the case of cacao butter, saturated triglyceride of high fusing point was not contained at all and the main component is 2-oleo-1,3-disaturated glycerides. This component was the main cause for cacao butter to show the unique behavior. Concerning the cholesterol concentrations in lever, the hardened soybean oil group tended to be lower than other 3 groups and this tendency agreed approximately with that in serum. Cholesterol in the feces was also analyzed. Cholesteol content in the case of cacao butter was higher than those for the hardened soybean oil group and palm oil group, and much higher than that of the soybean oil group. But the lathosterol content did not show any significant difference compared with that of palm oil group, and the coprostanol content showed the lower value, which had the significant difference. 14 refs., 1 figs., 7 tabs.

  20. Study on the annular leakage-flow-induced vibrations. 2nd Report. Stability analysis and experiments for translationally and rotationally coupled two-degree-of-freedom systems; Kanjo sukimaryu reiki shindo ni kansuru kenkyu. 2. heishin kaiten 2 jiyudo renseikei no anteisei kaiseki oyobi jikken

    Energy Technology Data Exchange (ETDEWEB)

    Li, D.W. [Hitachi, Ltd., Tokyo (Japan); Kaneko, S. [The University of Tokyo, Tokyo (Japan); Hayama, S. [Toyama Prefectural University, Toyama (Japan)

    1999-07-25

    In this study, the stability of annular leakage-flow-induced vibrations was investigated theoretically and experimentally for a translationally and rotationally coupled two-degree-of-freedom system. The critical flow rate was both theoretically and experimentally obtained as a function of the passage increment ratio and the eccentricity of the passage. A good agreement between the theoretical and experimental results was obtained. It was discovered both theoretically and from the experiments that instability will occur in the case of a divergent passage: the eccentricity of the passage lowers the stability of the systems. (author)

  1. Combustion-driven oscillation in a furnace with multispud-type gas burners. 4th Report. Effects of position of secondary air guide sleeve and openness of secondary air guide vane on combustion oscillation condition; Multispud gata gas turner ni okeru nensho shindo. 4. Nijigen kuki sleeve ichi oyobi nijigen kuki vane kaido no shindo reiki ni oyobosu eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Akiyama, I.; Okiura, K.; Baba, A.; Orimoto, M. [Babcock-Hitachi K.K., Tokyo (Japan)

    1994-07-25

    Effects of the position of a secondary air guide sleeve and the openness of a secondary air guide vane on combustion oscillation conditions were studied experimentally for multispud-type gas burners. Pressure fluctuation in furnaces was analyzed with the previously reported resonance factor which was proposed as an index to represent the degree of combustion oscillation. As a result, the combustion oscillation region was largely affected by both position of a guide sleeve and openness of a guide vane. As the openness having large effect on the ratio of primary and secondary air/tertiary air and the position hardly having effect on the ratio were adjusted skillfully, the burner with no combustion oscillation region was achieved in its normal operation range. In addition, as the effect of preheating combustion air was arranged with a standard flow rate or mass flow flux of air, it was suggested the combustion oscillation region due to preheating can be described with the same manner as that due to no preheating. 5 refs., 8 figs.

  2. Discharge-current characteristics in UV-preionized Kr/He, F2/He gas-mixtures and KrF excimer laser gas. Shigaisen yobi denri Kr/He, F2/He kongo kitai hoden oyobi KrF laser reiki hoden no denryu tokusei

    Energy Technology Data Exchange (ETDEWEB)

    Nakagawa, N.; Kawakami, H.; Yukimura, K. (Doshisha University, Kyoto (Japan))

    1992-08-15

    In order to study effects of Kr and F2 on discharge characteristics of KrF excimer laser gas, gap phenomena in Kr/He and F2/He gas-mixtures were observed and discharge current (I[sub d]) was measured. In the range where Kr concentration was over 10% in Kr/He gas, in which production of filamentation as well as glow discharge started, discontinuous change in I[sub d] in the second or third half cycle was observed. According to the results of experiments and model analyses, it was considered that the discontinuity of the current showed the transition point to filamentation. When F2 concentration was in the range between 0.1 and 0.3% in F2/He mixture gas, filamentation and arc with glow were observed. Sine-waveform I[sub d] ended in the first half cycle, and began to flow again after cessation or had almost constant current due to arc and others. When F2 was over 0.4%, only are discharge was observed. It was thus found that F2 has a large effect on discharge characteristics of KrF laser gas. 18 refs., 9 figs.

  3. Unstable brittle crack-arrest toughness of newly developed steel plate with surface layers having ultra fine grain microstructure. Part 2. Crack-arrest toughness of the plate after plastic damage and its application to prevent crack expansion after a collision; Hyoso chosairyuko no zeisei kiretsu denpa teishi seino. 2. Sosei sonsho go no tokusei oyobi shototsugo no kiretsu kakudai boshi eno tekiyo

    Energy Technology Data Exchange (ETDEWEB)

    Ishikawa, T.; Hagiwara, Y.; Inoue, T.; Oshita, S. [Nippon Steel Corp., Tokyo (Japan); Kuroiwa, T.; Hashimoto, T. [Mitsubishi Heavy Industries Ltd., Tokyo (Japan); Tada, M. [Mitsubishi Heavy Industries Ltd., Nagasaki (Japan). Nagasaki Technical Inst.; Yajima, H. [Hiroshima Univ. (Japan). Faculty of Engineering

    1995-12-01

    Use of ships with high safety and reliability that can suppress the casualties and ocean pollution accidents caused by ships failure to a minimum, are in demand. Therefore, in order to study the improvement of safety when steel plates with surface layers having ultra fine grain microstructure and having extremely improved arrest characteristic are used for ship structures, fracture simulation of collision and comparative evaluation of the arrest properties with the conventional steel plate were carried out. Firstly, fracture simulation of the ship bodycaused by the collision of very large crude oil carries (VLCC) was carried out and the plastic strain caused during the collision was quantified. After that, as for steel plate with surface layers having ultrafine grain microstructure and normal KE 36 steel plate, comparative study of arrestability of steel plate under 10% plastic strain was made. As a result, it was revealed that sufficient arrest efficiency was secured by using steel plate with surface layers having ultra fine grain structure even for the case where arrestability for long big crack is not secured in case of normal KE 36 steel plate due to the plastic strain effect on VLCC caused by collision. 11 refs., 18 figs., 5 tabs.

  4. Flow and mixing of gas in cylinder of a stratified charge engine with two intake valves. Effects of late closing valve timing and intake port configurations; Kyuki nibenshiki sojo kyuki engine no cylinder nai gas ryudo to kongo. Osotoji valve timing oyobi port keijo ni yoru eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Charoenphonphanich, C.; Niwa, H.; Ennoji, H.; Iijima, T. [Tokai University, Tokyo (Japan)

    1997-10-01

    A numerical analysis of the flow and mixing of rich mixture and air inducted into the cylinder through each of the two intake ports of a stratified charge engine have been carried out. Numerical calculations were performed by finite volume method for three types of the intake port configurations: inverse V type, parallel type and V type and two types of valve timing; conventional and late closing (Miller cycle). Velocity field, turbulent kinetic energy and distribution of mixture concentration in the cylinder were examined. 3 refs., 10 figs.

  5. Recent energy situation in the U.S. and Europe. Trend of discussions on energy safety security and energy policies in the E.U. and CIS (commonwealth of independent states) countries; Obei ni okeru saikin no energy jijo. Energy anzen hosho ni kansuru giron no doko to EU oyobi CIS shokoku no energy seisaku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The E.U. intends to establish the stabilized new partnership and economic area, based on free trades and tighter economic cooperation with Mediterranean countries. For the purpose of establishing the effective cooperative relationship in the energy field, the E.U. committee taking the short- and medium-term initiative prepares as follows: The establishment of the European/Mediterranean Energy Forum is thought of. This is for the joint management of cooperation in the energy field and the organization of the conferences and meetings of information exchanges between partners. The discussion is started for the final joining in the organization of partners of Mediterranean countries who do not participate in the Pan-European Energy Charter conference. They study options adoptable for easing investments. They cooperate with the related countries for carrying out the project having common interest in the TENs (Trans-European energy networks) field. The working-out of plans and projects is promoted for coordinating energy projects according to the purposes and procedures of MEDA. 59 refs.

  6. Report on results for fiscal 1997 on development of coal liquefaction technology . Development of liquefaction base technology (studies on development and internationalization of environmentally benign coal liquefaction technology); 1997 nendo sekitan ekika gijutsu seika hokokusho. Ekika kiban gijutsu no kaihatsu (kankyo chowagata sekitan ekika gijutsu no kaihatsu oyobi kokusaika kenkyu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The research objective is the development of environmentally benign coal liquefaction technology and the studies on internationalization of coal liquefaction technology. Implemented for the former are (1) research on improvement and rationalization of liquefaction process and (2) research on advancement of liquefaction base technology. In (1), studies were made on in-oil preprocessing technology and scale suppressing measures for the purpose of obtaining reform/high grade of coal, and on improvement of liquefied oil collecting ratio, sophistication of coal slurry and attainment of light oil/high grade from liquefied crude oil for the purpose of optimizing liquefaction reactive conditions and improving a solvent. In (2), in developing high activity/high dispersion type new catalysts, catalytic sufurization behavior and activity manifestation mechanism were explored, as were iron hydroxide based iron ore properties and liquefaction reactive characteristics. The initial reactive characteristics of liquefaction for example were investigated for the purpose of collecting basic data for expanding kinds of coal. In order to attain the latter objective of the research, a feasibility study of liquefaction location was conducted, as were the investigation including sampling of iron ore for catalytic material and the investigation of coal gasification technology. After the completion of the Australian brown coal liquefaction project, the development of the coal liquefaction technology commenced in fiscal 1994 produced a number of useful records and ended in 1997. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-10-01

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

  8. Interaction between shock waves and boundary layer in non-equilibrium hypersonic rarefield flow. 1st Report. Comparison with continuum model and Larsen-Borgnakke model; Kihaku ryoiki ni okeru goku choonsoku hiheikoryuchu no shogekiha/kyokaiso kansho. 1. Renzokutai model oyobi Larsen-Borgnakke model tono hikaku

    Energy Technology Data Exchange (ETDEWEB)

    Tsuboi, N.; Yamaguchi, H.; Matsumoto, Y. [The University of Tokyo, Tokyo (Japan)

    2000-06-25

    A DSMC (direct simulation Monte Carlo) simulation using Dynamic Molecular Collision (DMC) model based on Molecular Dynamics (MD) calculation is applied for solving a two-dimensional non-equilibrium hypersonic rarefied flow over a flat plate with and without angle of leading edge. Numerical results show that non-equilibrium characteristics between translational and rotational temperature are obtained behind leading edge over the plate. The results of the DSMC agree well with those of the experiments, however, the results of the Navier-Stokes are quite different from those of the experiments. The comparison between Larsen-Borgnakke (LB) model and DMC model reveals that the DMC model obtains excellent results without a parameter such as an inelastic parameter. (author)

  9. Fiscal 1999 report on basic research for promotion of joint implementation programs. Feasibility study on energy saving and environmental improvement for Radom City district cogeneration station; 1999 nendo Radom shi chiiki netsuden heikyu station sho energy oyobi kankyo kaizen kanosei chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Pursuant to the COP3 (Third Session of the Conference of the Parties to the United Nations Framework Convention on Climate Change) protocol, studies are conducted on a district cogeneration station for Radom City, Poland. Using the annual load pattern of heat supply, cogeneration will be built only for the amount that covers utilization factors not lower than a specified level, and the shortage in winter when the load is heavy due to demand for heat will be dealt with by the existing hot water boilers. Daily change in load is to be covered by a new, additional boiler which will bear 20% of the whole output. The system is a natural gas fired turbine cogenerator, and hot water is supplied by a waste heat recovery boiler. Cogeneration will cover 80% of the annual heat supply. As for heat supply capability, it is set at 72MWt with the additional boiler taken into account, and 35MWe is to be generated. Heat efficiency will increase to be higher than 80%, coal consumption will decrease, and 28,117 tons/year in terms of oil will be saved with the increase in natural gas consumption subtracted. CO2 reduction will also be as large as 206,000 tons/year, decreasing air pollutants. Provided that 4.336-billion yen for facilities are financed by Japan's environmental yen loan, Poland's National Fund, and Radom City's own fund, IRR (internal rate of return) on investment will be fairly good at 10% in 30 years of operation. Investment will be recovered in nine years and there is no problem in cash flow. (NEDO)

  10. Basic investigation on promotion of joint implementation in fiscal 2000. Investigations on modification and improvement project for Potoshani district heating and heat supplying facilities in Romania; 2000 nendo kyodo jisshi nado suishin kiso chosa hokokusho. Romania koku Potoshani chiiki danbo netsukyokyu setsubi no kaishu oyobi kaizen keikaku chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Discussions have been given on the improvement and modification project intended of saving energies and reducing greenhouse gas emission in the Potoshani district heating and heat supplying facilities in Romania. Thirty years have elapsed since the building of the Potoshani district heating and heat supplying facilities, whereas noticeable energy loss has occurred due to aged deterioration, such as thermal efficiency decrease, performance decrease, and hot water leakage due to piping corrosion. The present project is intended to improve the heat production and power generation facility efficiencies, and reduce the heat loss in heat transportation and distribution to less than 5%. The improvements will be implemented by replacing and rehabilitating the existing boilers, replacing the turbine generators, and replacing the transportation and distribution pipelines and heat exchangers. As a result of the discussions, the present project is estimated to result in annual fuel conservation of 35,820 tons of crude oil equivalent, and annual reduction of the greenhouse gas emission of 110,835 t-CO2. The total amount of the initial investment for the project would be 11.369 billion yen, and the payback period would be 12 years. The project will produce profit of 31.358 billion yen in 20 years, thus the project is financially feasible. (NEDO)

  11. Fiscal 2000 research and development of technologies for intelligent infrastructure creation and utilization. Development of high-precision screening assay system for endocrine disrupting chemicals and construction of database; 2000 nendo chiteki kiban sose riyo gijutsu kenkyu kaihatsu. Naibunpi kakuran busshitsu no koseido screening shiken hoho no kaihatsu oyobi data kiban seibi

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Research and development is carried out for the establishment of a system for assaying endocrine disruption now presenting itself as a hazard and for the application of the assay system to important chemicals and chemicals under development for the detection of presence of endocrine disrupting action in them. In this fiscal year, for the establishment of a reporter-gene assay system, cell characteristics were clarified through the determination of the expression sequence of the produced cell, the determination of the stable conservation period of the cell, and the study of the sustenance of activity. Studies were conducted, targeted at the stable supply of cells usable for high-throughput screening. Basic data were collected for the Hershberger assay being developed by OECD (Organization for Economic Cooperation and Development) and for the repeated administration test method for assaying thyroid hormone action by use of pubertal rats. For the assay of impact on environmental organisms, moreover, basic data were collected for the establishment of testing methods using fishes and amphibians. (NEDO)

  12. Elucidation of hydrogen mobility in tetralin under coal liquefaction conditions using a tritium tracer method. Effects of the addition of H2S and H2O; Tritium tracer ho wo mochiita sekitan ekika hanno jokenka deno tetralin no suiso idosei hyoka. Ryuka suiso oyobi mizu no tenka koka

    Energy Technology Data Exchange (ETDEWEB)

    Kanbe, M.; Saito, M.; Ishihara, A.; Kabe, T. [Tokyo University of Agriculture and Technology, Tokyo (Japan)

    1996-10-28

    It was previously reported that the tritium tracer method is useful for the quantitative consideration of hydrogen behavior in coal during coal liquefaction reaction. Tetralin is excellent hydrogen donating solvent, and is considered as one of the model compounds of coal. In this study, effects of H2S and H2O on the hydrogen exchange reaction between tetralin and gaseous hydrogen labeled by tritium were investigated. It was suggested that the conversion of tetralin and the hydrogen exchange reaction between gaseous hydrogen and tetralin proceed through the radical reaction mechanism with a tetralyl radical as an intermediate product. When H2S existed in this reaction, the hydrogen exchange yield increased drastically without changing the conversion yield. This suggested that the hydrogen exchange reaction proceeds even in the reaction where radical does not give any effect. In the case of H2O addition, the conversion yield and hydrogen exchange rate decreased into a half or one-third. It was suggested that H2O inhibited the formation process of tetralyl radical. 6 refs., 4 figs.

  13. 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.

  14. 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)

  15. FY 1999 report on the results of the R and D project on the industrial technology for the global environment. R and D of the prediction technology of environmental effects brought by CO2 ocean sequestration (Ocean survey and development of evaluation technology for CO2 sequestration ability); 1999 nendo chikyu kankyo sangyo gijutsu kenkyu kaihatsu jigyo NEDO seika hokokusho. Nisankatanso no kaiyo kakuri ni tomonau kankyo eikyo yosoku gijutsu kenkyu kaihatsu (Kaiyo chosa oyobi CO2 kakuri noryoku hyoka gijutsu no kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Assuming the melting and sequestration of CO2 at the intermediate depth of the sea area around Japan, study of evaluation technology of CO2 sequestration ability in ocean was studied, and the FY 1999 results were summed up. In the ocean survey, survey was conducted by ship (No.2 Hakurei-maru) mainly at typical observation points and traverse lines of long. 147 E and long. 155 E. In the survey, the following data were acquired: data on seawater density and chemical tracer, data on release of intermediate-depth/independent buoys, concentration distribution of carbonic acid base substances/nutrient salts/chlorophyll, data on the existing amount of marine organisms and primary production speed measurement experiment, data on experiment on CO2 on-board exposure to organisms in the intermediate depth of ocean, etc. In the measurement/analysis of the sediment particle flux amount, sediment traps were installed/recovered. Further, for the purpose of measuring the neutralizing effect of calcium carbonate, operation test on CaCO{sub 3} melting experimental equipment was conducted in the actual sea area. In the development of a model for evaluation of CO2 sequestration ability, carried out were the improvement of the model using the inverse method, study of the estimated accuracy using the ocean observation data, etc. (NEDO)

  16. FY 1998 result report. Study of a total system for the development of superconductor power application technology (Feasibility study of commercialization of superconductivity technology and study of the introductory effect. Future superconductivity technology development in Japan); 1998 nendo seika hokokusho. Chodendo denryoku oyo gijutsu kaihatsu total system nado no kenkyu chodendo gijutsu no jitsuyoka kanosei oyobi donyu kokanado no chosa (Nippon ni okeru chodendo gijutsu kaihatsu no kongo no hokosei)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    As a part of the New Sunshine Project, 'an R and D project on superconductor power application technology,' an examinational study was made as a mini project to clarify the developmental course for commercialization of superconductor technology. The superconductor technology is being watched with interest as a technology in the 21st century. In the application to the electric power/energy field, in particular, expected are the energy saving effect by high operation efficiency, excellent environmentality, developmental potentiality of new equipment/system by the application of ferromagnetism, etc. Accordingly, the paper analytically arranged the needs of superconductor devices in Japan and abroad and the technology seeds corresponding to the needs, and prepared the developmental subjects of superconductor technology. These developmental steps and the mutual relationship were expressed in an R and D framework. At the same time, as to the superconductivity, a survey outlined the projects carried out in each government office in Japan. The future developmental course was indicated, and proposals were made on the equipment/system as object which are the subjects for urgent development for commercialization. (NEDO)

  17. FY 1998 annual report on the development of laser-aided, noncontacting, realtime, in-process dressing method using a grinding stone with ultrafine abrasive grains, and study on techniques for applying the method to grinding stone of superthin blades; 1998 nendo laser wo mochiita choteiryu toishi no hisesshoku real time inprocess dressing ho no kaihatsu oyobi gokuusuha toishi eno tekiyo gijutsu ni kansuru kenkyu chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    A new noncontacting dressing method using a laser as a tool has been studied and developed, in order to develop environment-compatible, energy-saving type machining machines. In this study, a cup-shaped grinding stone is developed for grinding performance testing by micron-order diamond abrasive powder, used for producing a grinding stone of superthin blades, is mixed with a cast iron binder, molded and sintered. In the grinding performance test, zirconia as a work is ground at a constant pressure to the grinding stone working surface before and after the laser-aided dressing, to analyze grinding/removal efficiency and grinding resistance. The grinding stone working surface conditions are observed by a scanning electron microscope after the laser-aided dressing, to correlate the surface conditions with the grinding data. It is found that the laser-aided dressing method needs no lubricant, is clean, cutting grinding time when incorporated in the machining process, suitable for grinding stone of low stiffness and ultrathin blades by use of ultrafine abrasive grains, suffering no exfoliation of the diamond grains, and hence economical. (NEDO)

  18. FY 2000 report on the results of the R and D of the prediction technology for environmental effects of CO2 ocean sequestration. Ocean survey and development of the assessment technology for capacity of CO2 sequestration; 2000 nendo nisanka tanso no kaiyo kakuri ni tomonau kankyo eikyo yosoku gijutsu kenkyu kaihatsu seika hokokusho. Kaiyo chosa oyobi CO2 kakuri noryoku hyoka gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Assuming the dissolution/sequestration of CO2 at the medium-depth sea area around Japan (depth: 1,000-2,000m), the development was being proceeded with of the assessment technology for capacity of CO2 ocean sequestration and the prediction technology of environmental effects at the point of CO2 discharge. In FY 2000, conducted were the ocean survey and the development of assessment technology for CO2 sequestration capacity. In the investigational study, the following three were carried out: 1) survey/observation of the flow field on the line of 165 degrees of east longitude, and acquisition of various data such as the distribution of carbonic acid base substances and the speed of carbon transport; 2) study of the amount of existence of organisms and kind/composition of the medium-depth plankton at the typical observation points; 3) test/experiment actually conducted in the sea area for the experimental equipment for CaCO3 dissolution experimental equipment for studying interactions between the CO2 and CaCO3 dissolved into the medium-depth sea. As to the development of the assessment technology, carried out were the heightening of accuracy of medium-depth ocean circulation models using the inverse method already developed and the estimation of the flow field using the observation data. At the same time, the estimation of the flow field, etc. were conducted using large circulation ocean models. (NEDO)

  19. FY 1999 report on the results of the superconductive energy application technology development/research on a total system, etc. Survey of potentiality of the commercialization of superconductive technology, effects of the introduction, etc. (Future course of the superconductive technology development in Japan); 1999 nendo chodendo denryoku oryokuyo gijutsu kaihatsu total system nado no kenkyu. Chodendo gijutsu no jitsuyoka kanosei oyobi donyu koka nado no chosa (Nippon ni okeru chodendo gijutsu kaihatsu no kongo no hokosei)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    By the use of superconductive technology, the following are aimed at: marked reduction in power loss of electrical equipment and power transmission path, and size/weight reduction in electrical devices by high current/magnetic flux density. The superconductive technology has advantages such as great energy saving effect, CO2 reduction and global environmental preservation. As an example, concerning the superconductive generator now being developed under the New Sunshine Project, power loss can be reduced by half, and by the use of high magnetic field, size/weight can be reduced such as reduction in rotor diameter and reduction in weight by half. Further, as an innovative system, cited are the superconducting magnetic energy storage system (SMES) and flywheel energy storage system. The superconducting magnetic levitation railway, medical use MRI, etc. have also innovativity which is difficult to get in the conventional technology. Effects are also expected of introducing the process development using superconducting magnet such as magnetic separation, electromagnetic metallurgy, electromagnetic agitation and monocrytal growth convection control. Also cited is Josephson electronic device. High performance SQUID in bio-magnetic/non-destructive inspection is also expected to be developed. (NEDO)

  20. FY 1998 report on the results of the R and D of ITS technology using clean energy vehicles. R and D of the urban/residential area joint utilization system and advanced travel management/information supply; 1998 nendo clean energy jidosha wo mochiita ITS gijutsu no kenkyu kaihatsu. Toshinbu oyobi jutakuchi kyodo riyo system narabi ni soko kanri joho teikyo no kodoka no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The purpose of the project in FY 1998 is 'Experimental verification for EV spread promotion.' Two of a 3-month experiment were conducted in Yokohama MM21 area (Yokohama, Kanagawa) and in Tama Newtown (Inage, Tokyo) using a total of 100 (50 each) small EVs. The development was aimed at of an urban type rental-car system in Yokohama and of a car-sharing type second-car system for residential in Inage. As to these responses to ITS technology, the basic vehicle operation system was made common in both areas, and the daily use system was made a regional system considered of purposes of use, regional characteristics, etc. The experimental verification was worked on as almost expected in terms of the vehicle management, monitor assessment, responses from persons concerned in both areas. Therefore, it is said that the R and D have almost reached a point where there can be seen a possibility of system commercialization. Through the experimental verification, the development was able to be smoothly promoted of the basic technology and element technology which are thought to be needed for the commercialization of EV. From the experience of this experimental verification, it is judged that it is desirable to tackle the commercialization by a membership system when the commercialization of EV joint use system is planned in future. (NEDO)

  1. FY1995 formation of a global database of color-related sensory values such as color cognition and color emotions and the research and development of a multimedia system for feedback of such values onto the color design of products and living environments; 1995 nendo shikisai ninchi ya shikisai kanjo nado, shikisai ni taisuru kannochi no kokusaiteki database no kochiku to, sore wo seihin oyobi seikatsu kankyo no shikisai sekkei ni han'eisaseru multimedia system no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Research was conducted with the aim of provide small and medium enterprises as well as consumers with (1) information concerning color on a global scale and (2) technical support for the color planning of homes and apparel. (1) In 20 major countries (23 regions), color-related sensory evaluations were carried out and simultaneous fact-finding studies to investigate the use of colors in homes and apparel were conducted, after which a database was built containing color information according to country (region). (2) Using the above data together with data from color evaluation experiments, a model formula was obtained for measuring the amenity of colors. (3) This formula was employed to develop software for evaluating the amenity of colors by computer. (4) A multimedia system was built that permits shared use of the results of (1) through (3) above. (NEDO)

  2. [Akiko Yosano, the famous Japanese poet and writer, is the first lady who experienced labor analgesia in Japan?].

    Science.gov (United States)

    Okutomi, Toshiyuki

    2011-10-01

    There have been some records of labor analgesia with intravenous or rectal anesthetics since 1925. It is widely believed that labor epidural analgesia in Japan started to become popular after the World War II (1939-1945). However, the author found that Akiko Yosano, a well-known Japanese female poet and writer, had labor analgesia for her 5th son as early as 1916. She was given a mixture of an opioid alkaloid and scopolamine and had painless labor and delivery. She took this experience as a pleasant surprise and described "Never once, had I screamed or feel sweaty during my labor". She loved this comfortable and easy labor so much that she had it again for her 6th son in 1917. Her obstetrician was Dr. Yuzo Ohmi, who had studied in Munich University from 1910 to 1913. He brought this miracle painkiller from Germany to Japan and gave it to her for the first time in Japan. Akiko's husband, Tekkan Yosano, met Dr. Ohmi on a ship to Marseilles in 1911. Then, they and Akiko promoted friendship in Munich and Japan. Her labor experience and friendship with Dr. Ohmi are described in her collected essays "Warera-naniwo-motomuruka? (What do we long for?)" and "Ai-Risei-oyobi-yuhki (Love, Reason, and Bravery)". Dr. Ohmi's wife became a pupil of Akiko.

  3. Research and development of a color-related global database of sensory values concerning color cognition, color emotions, etc. and the multimedia system to feedback it into products and living environment. FY 1995 data book 7 Color amenity calculating system; 1995 nendo shikisai ninchi ya shikisai kanjo nado, shikisai ni taisuru kannochi no kokusaiteki database no kochiku to, sore wo seihin oyobi seikatsu kankyo no shikisai sekkei ni han'eisaseru multimedia system no kenkyu kaihatsu. Shiryoshu dai 7 kan shikisai kaitekido keisan system

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    A color amenity calculating system was developed. The paper described the details, calculating method, verification, etc. of the system. This calculating system automatically calculates the score of amenity for color of the specified image, and the application field is 'exterior/appearance of building and streets,' 'interior,' and 'fashion.' Elements composing color amenity are the matching degree, familiarity, lightness, brightness and unity of colors. The weighed average value of these becomes general color amenity. Based on 'the survey of the world's youth,' color amenity is calculated by area, assuming that people in 23 areas of 20 countries in the world have different amenity by male/by female. In the system, objects are called up by 'input of stimulus,' and color information of images is numerated by 'measurement of color distribution.' In 'selection of parameters,' it is clarified whom the amenity is for (by country/by sex). The calculation is made instantaneously, indicating the result on the screen. (NEDO)

  4. Research and development of a color-related global database of sensory values concerning color cognition, color emotions, etc. and the multimedia system to feedback it into products and living environment. FY 1995 data book 4 'Color statistics' tables; 1995 nendo shikisai ninchi ya shikisai kanjo nado, shikisai ni taisuru kannochi no kokusaiteki database no kochiku to, sore wo seihin oyobi seikatsu kankyo no shikisai sekkei ni han'eisaseru multimedia system no kenkyu kaihatsu. Shiryoshu dai 4 kan 'shikisai tokei' shukeishu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    Surveys made on 'color statistics' in countries/regions of the world were collected and arranged. In the survey of 'exterior,' investigators were sent to 35 cities and took pictures there. Looking at the pictures, they recorded in the table the names of the colors selected from color samples. In the survey of 'interior' and 'fashion,' the pictures of the magazines bought in Japan were sorted in each city, and the color in each item of the table was selected from the 1995 sample book of coating use standard colors of Japan Paint Manufacturers Association. In the survey of streets in major cities of the world/exterior, colors of the following were described: road surface, roof, outer wall, window frame, door, verandah, bench, public telephone, trash can, bus, train, car, fence, chimney, etc. In the survey of interior, colors of the following: gate, passage, living room, dining room, bedroom, kitchen, bathroom, nursery, study, etc. In the survey of fashion, colors of the casual, sporty, formal and business clothes of teens-thirties, etc. (NEDO)

  5. Research and development of a color-related global database of sensory values concerning color cognition, color emotions, etc. and the multimedia system to feedback it into products and living environment. FY 1995 data book 6 Analysis results of experiments; 1995 nendo shikisai ninchi ya shikisai kanjo nado, shikisai ni taisuru kannochi no kokusaiteki database no kochiku to, sore wo seihin oyobi seikatsu kankyo no shikisai sekkei ni han'eisaseru multimedia system no kenkyu kaihatsu. Shiryoshu dai 6 kan shikisai hyoka jikken no bunseki kekka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    This data is the results of the analysis on the color evaluation experiment. In the analysis of an experiment on 'single color image evaluation,' described were the average evaluation value by sex, profile of each color, position of each color in image space, etc. In the 2-color coloring evaluation, the experiment on 2-color coloring matching degree evaluation, analysis of factors determining the matching degree, comparison between the results of the coloring matching feeling experiment and the results of the survey of the world's youth, results of the analysis of difference in country, etc. In the analysis of the color simulation experiment, the experiment on 3-color coloring matching degree evaluation, relations between the area ratio and the matching degree of coloring stimulation, etc. In the experiment on evaluation of the matching degree of interior/exterior/fashion stimulation, 28 types of combination of colors of lipstick/suit/blouse, combination of suit/sweater/wall face of architecture, combination of sofa/floor/carpet, combination of wall/bed, evaluation of the matching degree of street colors (street stimulation), etc. (NEDO)

  6. Research and development of a color-related global database of sensory values concerning color cognition, color emotions, etc. and the multimedia system to feedback it into products and living environment. FY 1995 data book 3 (2) 'Color cognition of the world's youth' analysis and mapping; 1995 nendo shikisai ninchi ya shikisai kanjo nado, shikisai ni taisuru kannochi no kokusaiteki database no kochiku to, sore wo seihin oyobi seikatsu kankyo no shikisai sekkei ni han'eisaseru multimedia system no kenkyu kaihatsu. Shiryoshu dai 3 kan (2) 'sekai no seinen no shikisai ninchi chosa' shiryohen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    An investigational study was conducted for the youth of main 20 cities of the world including Japan, aiming at clarifying characteristics of the color sense and at constructing a color-related global database and studying how to use it. This data is the results of the analyses and mapping. The following were included as data: calculational results of the mapping by country (all items), calculational results of the similarity analysis of countries (regions), regional clusters of color taste and characteristics of each cluster, international comparison of memory color in the natural world, analysis of regional difference in warm-cold/light-heavy/loud-quiet images, analysis of color association data by language, analysis of image maps by factor analysis, regional difference in color association concerning 15 languages, analysis of regional difference in color association data by language, analysis of regional difference in colors which have been most enjoyed/colors peculiar to cities, international comparison of evaluation of 2-color coloring matching degrees, and international comparison of evaluation of coloring matching degrees. (NEDO)

  7. Research and development of a color-related global database of sensory values concerning color cognition, color emotions, etc. and the multimedia system to feedback it into products and living environment. FY 1995 data book 2 'Color cognition of the world's youth' statistical graphs; 1995 nendo shikisai ninchi ya shikisai kanjo nado, shikisai ni taisuru kannochi no kokusaiteki database no kochiku to, sore wo seihin oyobi seikatsu kankyo no shikisai sekkei ni han'eisaseru multimedia system no kenkyu kaihatsu. Shiryoshu dai 2 kan 'sekai no seinen no shikisai ninchi chosa' zu to hyo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    An investigational study was conducted for the youth of main 20 cities of the world including Japan, aiming at clarifying characteristics of the color sense and at constructing a color-related global database and studying how to use it. In Part 1 of this data, the results of the data collection were indicated in graphs by total/by male/by female of the world, in graphs of comparison by country, and in column graphs by country. In Part 2, a list of the order of the colors ranking from No. 1 to No. 6 which totally occupy 70% of all the colors was shown by total/by male/by female. In Part 3, characteristics of images by color were indicated in graphs by color (radar graph, etc.) (NEDO)

  8. Research and development of a color-related global database of sensory values concerning color cognition, color emotions, etc. and the multimedia system to feedback it into products and living environment. FY 1995 data book 3 (1) 'Color cognition of the world's youth' analysis and mapping; 1995 nendo shikisai ninchi ya shikisai kanjo nado, shikisai ni taisuru kannochi no kokusaiteki database no kochiku to, sore wo seihin oyobi seikatsu kankyo no shikisai sekkei ni han'eisaseru multimedia system no kenkyu kaihatsu. Shiryoshu dai 3 kan (1) 'sekai no seinen no shikisai ninchi chosa' bunseki kekka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    An investigational study was conducted for the youth of main 20 cities of the world including Japan, aiming at clarifying characteristics of the color sense and at constructing a color-related global database and studying how to use it. This data is the results of the analyses. In the analysis of all items, the following were indicated: color mapping by country, analysis of similarity of countries, relations between 'the survey of the world's youth' and the internet survey, etc. In the analysis of each item, the following were shown: regional difference in color of hair/color of pupil/color taste, analysis of life color, analysis of memory color in the natural world, warm-cold/light-heavy/loud-quiet images and color taste, analysis of color association data by language, regional difference in colors which have been most enjoyed/regional difference in colors peculiar to cities, and analysis of regional difference in evaluation of coloring matching degrees. (NEDO)

  9. Research and development in fiscal 1995 on a multi-media system to structure an international database on sensual values for colors including color recognition and color sensation, and to reflect them on color design of products and living environment. Data collection, volume No.5 (result of analysis on color statistics); 1995 nendo shikisai ninchi ya shikisai kanjo nado, shikisai ni taisuru kannochi no kokusaiteki database no kochiku to, sore wo seihin oyobi seikatsu kankyo no shikisai sekkei ni han'eisaseru multimedia system no kenkyu kaihatsu. Shiryoshu dai 5 kan (shikisai tokei bunseki kekka)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    This paper describes research and development on a multi-media system to structure an international database on sensual values for colors, and to reflect them on color design of products and living environment. Among the works, the color statistics graphs and the analysis result data collections are summarized as the volume No.5. The summary includes analytical materials such as bar graphs for the result of calculation as the color statistics, a list of color order by items, and mapping. The countries subjected to the research and development cover almost all of the world, and the subjects were divided into exterior, interior and fashion. Discussions were given on difference between regions by preparing maps of colors and maps of the regions to identify regional difference by appearance elements (roofs and walls) of buildings as the exterior (streets of the world). The elements of the analyzed exterior consist of seven elements: road surface, roofs, outer walls, window frames, window doors, doors and verandah. As the analytical method, the third category quantification analysis was performed from the calculation table, on which category weights and sample scores were plotted. (NEDO)

  10. Abuse of Modernity: The Korean Medical Journal and Colonial Identity

    Directory of Open Access Journals (Sweden)

    Mark Caprio

    2014-03-01

    Full Text Available Medical researcher Kubo Takeshi’s contributions to professional publications, such as Chōsen igakkai zasshi (The Korean medical journal, and more popular magazines, such as Chōsen oyobi Manshū (Korea and Manchuria, reflected many of the prejudicial attitudes that Japanese held toward Koreans during the first decade of colonial rule. His scholarship was based on biological determinist thinking, an approach developed by eighteenth-century European medical researchers to establish race, class, and gender hierarchies. For Kubo this approach provided a means for exploiting scientific inquiry to establish and manage Japanese superiority over Korean subjects in a more stable manner than one based on more malleable cultural differences. A people could adjust its customs or mannerisms to amalgamate with a suzerain culture but could not do so with hereditarily determined features, such as blood type or cranium size, shape, or weight. Practitioners, however, often linked the physical with the cultural by arguing that a people’s physical structure was a product of its cultural heritage. The subjectivity injected into this seemingly objective research methodology abused the lay community’s blind trust in modern science in two ways. First, it employed this inquiry to verify biased observations, rather than to uncover new truths; second, it altered the approach, rather than the conclusions, when this inquiry demonstrated the desired truths to be inaccurate. Biological determinism proved useful in substantiating a Japanese-Korean colonial relationship that acknowledged historically similar origins while arguing for the historically different evolutions of the two peoples.

  11. 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.