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Sample records for yokugata gyaku mondai

  1. Method for solving an inverse problem of wing type by using a simple panel method; Kanbenna panel ho ni yoru yokugata gyaku mondai no ichikaiho

    Energy Technology Data Exchange (ETDEWEB)

    Ando, J; Matsumoto, D; Maita, S; Nakatake, K [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    1997-10-01

    This paper describes one method for solving an inverse problem of wing type based on the source and quasi continuous vortex lattice method (SQCM) in designing marine propellers and underwater wings. With the SQCM, vortices and control points are distributed on wing camber according to the QCM, and wing surface is divided into certain number of panels. This is the method to decide vortex intensity and blow-out intensity simultaneously from the condition that vertical speed on the camber and the wing surface is zero, upon having distributed blow-out with certain intensity inside the panel. The method solves the inverse problem with the following process: specific point distribution is so determined that the targeted velocity on the wing surface is satisfied when wing surface pressure distribution and uniform flow velocity are given; and then the panels are so rearranged as in parallel with direction of the flow on the surface of the wing calculated by using these specific points to derive the targeted wing shape. This paper describes the problem solving procedure in great detail. It also introduces examples of numerical calculations. It shows one method for solving the inverse problem in wing type using the SQCM as a simple panel method, whereas its good convergence and stability were verified. Considerations on effects of free surface and expansion of the method into three-dimensional problems will be implemented in the future. 11 refs., 8 figs.

  2. Features of vertical axis wind turbine and development of airfoils sections; Chokusen yokugata suichoku jiku fusha no tokucho to yokugata ni kansuru kenkyu

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    Seki, K; Shimizu, Y; Yasui, T [Tokai University, Tokyo (Japan); Nakayama, H [Oriental Kiden Company, Osaka (Japan)

    1996-10-27

    Features of a straight wing type vertical axis wind turbine (VAW) and its airfoil sections were studied. The wind turbine in which various aerodynamic work components are mounted on the rotation axis normal to the ground surface is named VAW. Like the airfoil section of aircraft, in lift type VAW, wind turbines were driven by lift 70-90 times as large as drag in some cases. Features of the VAW airfoil section which is a straight wing in plan and a fixed pitch wing (with a fixed angle to a blade support arm) in cross section, and those of wind turbines were studied. Some factors affecting the features, work principle and performance of VAW were clarified. On airfoil sections, products of each weight function and each corresponding aerodynamic factor (lift, drag and pitching moment factors) were plotted on an attack angle ({alpha}) axis. From the conditions for increasing the total sum of areas drawn by the products on the {alpha} axis, various characteristics required for airfoil sections were clarified. Such characteristics nearly agreed between an airfoil section for favorable starting characteristics and that for high efficiency. 3 refs., 7 figs.

  3. History of global environmental problems. Chikyu kankyo mondai no rekishi

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    Matsui, S [Kyoto University, Kyoto (Japan). Faculty of Engineering

    1994-04-15

    This paper takes general view of the history of global environmental problems. A UN human environment conference was held in Stockholm in 1972, at which the human environment declaration and an action plan were adopted. The most important among the results of the Stockholm Conference were the treaty on international transactions of wild animal and plant species feared of extinction in the 1970's, the international treaty on prevention of pollution caused by ocean vessels, and the treaty on prevention of ocean pollution caused by dumping of wastes and other materials. Also adopted in the 1970's include the action plan to prevent desertification, the action plan on the world population, and the world weather plan. The UN Nairobi Conference in 1982 has sounded the alarm on the delay in tackling with the facing problems and the progress of aggravation in the global environment. In 1987, the ozone layer protection protocol was adopted. The earth summit at Rio de Janeiro in 1992 adopted the Agenda 21, with which the participating nations, autonomous bodies, and civil organizations have prepared their own Agenda 21, and are now about to begin challenging the global environmental problems. 7 refs., 4 tabs.

  4. Experimental development of a torsion arc blade type horizontal axis windmil; Nejire enko yokugata suihei jiku fusha no kaihatsu

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    Kojima, N. [Meiji Univ., Tokyo (Japan). Faculty of Scince and Technology

    1996-05-31

    To get more wind energy, longer rotating blades and higher towers of windmills are required. Therefore, the location of windmills is limited and the initial cost gets higher. In this study, a small size windmill which can generate electricity even in a city was developed and tested. A torsion arc blade type horizontal axis windmill was designed and the blade form, number and degree of distortion were investigated. Based on the results, a small windmill was made, rotation and generation tests were carried out and it was confirmed that the windmill could be used as a small scale wind power generation. The windmill is of simple construction having 6 arc blades and no high tower is required. This paper consists of 6 sections, i.e. Introduction, Windmill model, Tested windmill, Test facility and method, Test results and consideration, and Postscript. 2 refs., 18 figs., 1 tab.

  5. Output characteristics of torsion arc blade type horizontal axis windmill; Nejire enko yokugata suiheijiku fusha no shutsuryoku tokusei

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    Kojima, N; Kishimura, K [Meiji University, Tokyo (Japan)

    1997-11-25

    The previous paper theoretically analyzes characteristics of a torsion arc blade type (TABT) horizontal axis windmill to derive the theoretical equations, which give the results in good agreement with the observed ones, when multiplied by a blade shape factor. This paper discusses that the theoretical and observed results are in good agreement with each other by taking into consideration shape-related solidity and number of blades. The following findings are obtained, when parameters related to a 6-blade TABT horizontal axis wind mill are introduced and hysteresis brake is used as the load resistance for torque measurement. Shape factor can be represented by two factors of blade number and solidity. The same equation for shape factor is applicable to both elliptical and rectangular blades. These blades need different theoretical equations to give the results in agreement with the observed ones, when operated at a tip speed ratio (TSR) of 1.77 and 1.58, respectively. Rotational force is affected by the rear blade shape when they are operated at a respective TSR below the above level, but unaffected at beyond the above level. 5 refs., 9 figs., 1 tab.

  6. Study on torsion arc blade type horizontal axis wind turbine; Nejire enko yokugata suihei jiku fusha ni kansuru kenkyu

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    Kojima, N; Kishimura, K [Meiji University, Tokyo (Japan)

    1996-10-27

    Discussing the rotor blades of the torsion arc blade type (TABT) wind turbine, difference in windmilling characteristics was determined between elliptic blades and rectangular blades by theoretical analysis and model experiment. Experimental generation of power was carried out using a test wind turbine in the natural wind. First, elliptic blades were bent into arcs and fixed to shaft. The action force was determined calculating the blade area and the wind velocity vertical thereto. Furthermore, the force in the direction to turn the rotor was determined with the effect of the part behind the blade taken into account. The rotation-curbing air resistance in the flank direction that a rotor experiences was subtracted to determine the torque generated. A formula was derived for the elliptic blade. Second, a formula was derived in the same way for the case of rectangular blades. In conclusion, in the case of 6-blade wind turbine, the rate of responsibility for wind turbine rotation of the part behind the blade was approximately 50% of the part in front of the blade. Shape coefficients were introduced into the theory, which resulted in values agreeing well with values obtained from experiments. Elliptic blades yielded more power than rectangular blades at the same wind velocity. High in durability, the TABT wind turbine is expected to be put into practical use as a compact auxiliary power generating device. 2 refs., 14 figs.

  7. Supercavitation hydrofoil performance and torsional flutter margin; Supercavitation yokugata no teijo hiteijo tokusei to nejiri flutter genkai

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    Matsudaira, Y.; Obara, H. [Tokyo Metropolitan Institute of Technology, Tokyo (Japan); Nakagawa, H. [Sumitomo Heavy Industries, Ltd., Tokyo (Japan); Yoshida, H. [Tokyo Metropolitan Institute of Technology, Tokyo (Japan)

    2000-08-25

    Supercavitation hydrofoil applied to high-speed marine propeller or hydro-machinery blade runs into unsteady behaviors such as cavitation breakdown and hydraulic flutter in some operation range. The hydrofoil performance was experimentally estimated and compared with the wedge performance using the cavitation tunnel and the torsional vibration apparatus with three component load cells, This experiment was carried out at several angles of attack in the region from subcavitation to supercavitation. At a general steady state but including some cavitation breakdowns, the hydrofoil has the most superior time mean lift/drag ratio about 6 < C{sub l}/C{sub d} < 8 at in all cavitation regions. But, the ratio drastically decreases as the angle of attack increases. Fluctuating lift coefficient C{sub l}{sup '} due to the cavitation breakdown reaches up to about 10% of time mean lift coefficient C{sub l}. At the hydrofoil pitching motion, the torsional flutter margin of the hydrofoil extends to higher reduced frequency side as the angle of attack increases and has the nearly same margin of the wedge in all cavitation regions. (author)

  8. Energy, environment and pursuit of happiness; Energy kankyo mondai ningen no kofuku kara kangaeru

    Energy Technology Data Exchange (ETDEWEB)

    Shingu, H. [Kyoto University, Kyoto (Japan)

    1997-05-05

    The energy and environment issue was considered from a viewpoint of human happiness. The paper picks up economy, philosophy, energy and humans as organisms, and considered how the principle of the increase by geometrical progression plays an important role in these. That the repetition in phenomena is like the increase by geometrical progression means that changes increase not linearly but exponentially and nonlinearly and bring such large changes as are unimaginable. The increase in entropy, which is caused by a nonlinear increase of the state, is an irreparable change. The problem of the pursuit of happiness also cannot be solved by the linear thought. The energy and environment problem cannot reach the solution in an extension of the linear thought in which humans have overcome poverty and lacks since the past and pursued richness earnestly. Namely, it is necessary for the 21st century to stop thinking of the energy utilization for seeking for much more richness and to try to think the energy issue in the social system where happiness with not too much richness is presupposed. 16 refs., 1 fig., 1 tab.

  9. Y2K of the society of chemical engineers, Japan; Kagaku kogakukai no 2000nen mondai

    Energy Technology Data Exchange (ETDEWEB)

    Kataoka, K. [Kobe University, Kobe (Japan)

    2000-01-05

    In this paper, the coming problem of the Y2K problems by the cataclysm of economic society that the Society of Chemical Engineers holds is described. And it is explained in dividing into the present problems for the development of the Society of Chemical Engineers, a science and technology promotion policy, a university/industry cooperation, a regional cooperation, an internationality and international contribution, an effect of an independent administrative corporation of national universities, the movement of a future plan, the terms of member needs and a base establishment. In the paragraph of the movement of a future plan, the facts that a basic philosophy of the Society of Chemical Engineers was suggested standing on the report of the Vision Settlement Preparation Committee organized in 1998, the Chemical Industry Vision 2011 Settlement Committee was inaugurated for constituting its future images and the Working Group composed of the members of the Industry Institute in their forties leading the next generation was established is introduced. (NEDO)

  10. Industrialization, urbanization and demographic change in England; Igirisu ni okeru kogyoka toshika to jinko mondai

    Energy Technology Data Exchange (ETDEWEB)

    Yasumoto, M. [Komazawa University, Tokyo (Japan). Faculty of Economics

    1994-12-15

    In order to study the effects of progress in industrialization and urbanization on societies and economy, analyses were performed on the northern England in the period of the Industrial Revolution. The rapid expansion of the city of Leeds in the 1780`s and on had brought about the increase in employment opportunities in the suburban farming villages, as well as drop in matrimonial age in agricultural and coal mine workers, and the rapid population increase. Housing conditions for those workers who had flown into the city from agricultural villages in a large number were of very poor quality, and their living standard was low. More than half of the patients visiting the charity hospital in Leeds City came from the urban area, with industrial accidents such as injuries in young workers noticed remarkably high. Many women were included in them, from which the progress in mechanization of the textile industry in Leeds and its surrounding areas can well be imagined. The attributes of households, families, and population were divided into diverse structures and hierarchies, according to the residential construction form and work income earner rates in family constituting members were also various. The development urbanization and industrialization had given diversified effects on households, families, population, and life cycles in city dwellers through changes in housing environments. 2 refs., 1 fig., 7 tabs.

  11. Dealing with problems on sexual harassment in universities; Sekuhara mondai niokeru daigaku no torikumi

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    Michiue, Masanori. [Tottori University, Tottori (Japan)

    1999-06-01

    Authors carried out the outside evaluation that the education system, equipment from curriculum and results of faculty staff were checked by not only self-inspection and evaluation but also insight people outside the faculty in the engineering faculty in the Tottori University. As one part of this evaluation, a guideline to the sexual harassment was made. After then, a guideline to the sexual harassment in each university was completed after learned from the example of the Tottori University. This kind of regulation was made in offices of each ministry and agency, self governing body and company according to the direction of the National Personal Authority. Until recent time, the regulation related to student discussion on the sexual harassment was set up in whole the Tottori University, an environment to make students study at ease was adjusted. These items had the regulation related to student discussion, protection, guideline, when damage happened, and the student discussion room. These items were listed in the student living guideline on the homepage of the Tottori University. (NEDO)

  12. Global environmental problems in the electric industry. Denki jigyo ni okeru chikyu kankyo mondai ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Sugi, T [Tokyo Electric Power Co., Inc. (Japan)

    1992-09-30

    Since the electric industry has grappled with a prevention of the environmental pollution such as the air pollution and water contamination as a forerunner in case of construction and operation of the power facilities, and at the same time has conducted actively the environmental conservation countermeasures, it has consequently achieved the environmental conservation level as a top level in the world. On the other hand, as for the emission quantity of CO2 relating to the earth warming, the power field occupies about one fourth of total Japan. Therefore the electric industry should aim at the electric energy supply considering the influence on the environment, such as the power supply structure to restrain CO2 emission as less as possible, higher efficiency of equipments, higher efficiency of energy utilization by using the unused energy and so forth. In addition to it, the consumer side should aim at the social structure with a recycle type such as saving resources and saving energy, and aim at changeover of life style. It is hoped to conduct the overall measure including the items mentioned above. In this report, the recent trend of earth enviromental problems, grappling with the environmental problems as a forerunner such as the prevention measure of air pollution in the thermal power plant, etc., and the correspondence to the earth warming problems are outlined. 11 refs., 9 figs., 3 tabs.

  13. Study of carbon dioxide (CO sub 2 ) problems through marine science. Kaiyo kara mita nisankatanso mondai

    Energy Technology Data Exchange (ETDEWEB)

    Honda, M [Japan Marine Science and Technology Center, Kanagawa (Japan)

    1990-09-01

    This paper reviews the researches relating to carbon dioxide circulation in oceans, and introduces the roles played by oceans in respect of the CO {sub 2} problem. Oceans occupy 70% of the globe {prime} s surface area, and contain 60 times as much of carbon as in the atmosphere. However, the amount of CO {sub 2} absorbed from the atmosphere into the oceans as has been estimated to date can not explain the carbon balance on earth. The exchange rate of CO {sub 2} between the atmosphere and the oceans was estimated from measurements of the partial pressure (PCO {sub 2}), and from behaviors of the radiocarbon ({sup 14} C). However, to raise the estimation accuracy, it is necessary to obtain data from the sea areas where observations are carried out only infrequently, and from the winter season during which the observation frequency is low. Identifying variations in organic and inorganic carbon amount generated by marine organisms is also important. Since more than 99.9% of carbon is present in the form of carbonate, it is required that its amount, and the amount of precipitation and dissolution per unit time be identified, and that CO {sub 2} removed from the carbon cycle be quantified. What is particularly required is the study of open-sea bottom deposits, and the coastal study with coral reefs as the main object. 40 refs., 30 figs., 11 tabs.

  14. Thermal boundary condition effects on forced convection heat transfer. Application of a numerical solution of an adjoint problem; Kyosei tairyu netsudentatsu mondai ni okeru netsuteki kyokai joken no eikyo. Zuihan mondai no suchi kai wo mochiita kosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Momose, K.; Saso, K.; Kimoto, H. [Osaka University, Osaka (Japan). Faculty of Engineering Science

    1997-11-25

    We propose a numerical solution for the adjoint operator of a forced convection heat transfer problem to evaluate mean heat transfer characteristics under arbitrary thermal conditions. Using the numerical solutions of the adjoint problems under Dirichlet and Neumann conditions, both of which can be computed using a conventional CFD code, the influence function of the local surface temperature on the total heat transfer and that of the local surface heat flux on the mean surface temperature are obtained. As a result, the total heat fluxes for arbitrary surface temperature distributions and the mean surface temperatures for arbitrary surface heat flux distributions can be calculated using these influence functions. The influence functions for a circular cylinder and for an in-line square rod array are presented. 14 refs., 9 figs., 1 tab.

  15. Bio-technology drawing attention for solution of environmental problems. Kankyo mondai kaiketsu demo chumokusareru bio technology

    Energy Technology Data Exchange (ETDEWEB)

    Shimazaki, A [Bank of Tokyo, Tokyo (Japan)

    1991-06-01

    Explanations are given on the recent movements in the bio-technology applications. In the United States, gene therapy has been applied to patients having damaged immune system, while in Japan the first outdoor experiment is about to begin this year on gene recombined tomatoes. In the area of the marine bio-technology, researches carried out by the industrial, governmental, and academic sectors combined, led by the Ministry of International Trade and Industry have begun, which include such an attractive subject as finding out new kinds of algae living on carbon dioxide as their special favorite diet to use them to prevent the earth warming-up. On the other hand, the difficulty of bio-business is represented by the fact that venture business groups are absorbed into larger chemical companies. In Japan, the bio-business established in individual regions related to soy bean paste and Shoyu sauce industry is a distinct feature. Deregulations and review on the patent system are in progress in the United States and Germany aiming at strengthening the business competitiveness. Expectation is placed on the bio-technology that it will contribute largely in the future to solving such a critical environmental problem as experienced in the Persian Gulf war. 1 tab.

  16. Resources, environment and solid waste management; Shigen {center{underscore}dot} kankyo mondai to haikibutsu shori no tenkai

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    Takeda, Nobuo [Kyoto University, Kyoto (Japan). Department of Environmental Engineering

    1999-09-20

    Solid waste management should be considered in close relation to conservation of energy and resources. The history and situation of solid waste management in Japan is outlined and the new concept of waste management is discussed for sustainable development. (author)

  17. Globalization of energy issues and Japan`s correspondance to it; Energy mondai no gurobaru ka to Nihon no taio

    Energy Technology Data Exchange (ETDEWEB)

    Toichi, T. [Japan Energy Economic Research Inst., Tokyo (Japan)

    1996-02-20

    There are three energy issues in the 21st century, i.e., energy security, global warming, and improvement in efficiency of energy supply. The correspondence to these issues was described. Topics in the energy security issue are the present situation of Middle East, the trend of energy demand in the rapidly developing countries such as China, ASEAN countries, Korea, and Taiwan, and the nuclear fuel and peaceful utilization of plutonium. For the global warming, the Frame Work Convention on Climate Change, which has became officially effective, and the attitude of developed countries to it, the establishment of responsibility to reducing the emission after 2000, and the increasing expectation to co-operation and discrepancy among Japan, U.S.A., EU, and developing countries. Concerning the improvement in efficiency of energy supply system and the relaxation of regulation, the progress of regulation relaxation in the U.S.A. and necessity of promoting the flexibility and efficiency improvement in energy demand and supply system in Japan were explained. 3 tabs.

  18. Study on wave power generation of electricity using torsion arc blade type horizontal axis wind turbine; Nejire enko yokugata suihei jiku fusha wo mochiita haryoku hatsuden ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Kojima, N; Kishimura, K [Meiji University, Tokyo (Japan)

    1996-10-27

    Windmilling characteristics of a combination of a torsion arc blade type (TABT) horizontal axis wind turbine and a reverse torsion arc blade type (RTABT) horizontal axis wind turbine were evaluated in a wave activated power generation experiment. The TABT wind turbine had six blades, and the front and rear parts of the blade were twisted in the same direction, which caused the direction of rotor rotation to change as the direction of wind along the shaft changed. The RTABT wind turbine had twelve blades, and the front and rear parts of the blade were twisted reverse to each other, which allowed the direction of rotor rotation to stay constant even in the presence of wind direction reversal. To keep the direction of rotor rotation unchanged in the presence of flow direction reversal along the power generating turbine shaft, a single-stage type RTABT wind turbine and a double-stage type were used, the double-stage type being a series connection of a first-stage RTABT (for blowout and suction) and second-stage TABT (for blowout only). Both single-type and double-type rotated in the same direction irrespective of the direction of air flow. The output of the double type was obtained by adding up the values obtained from the individual turbines. The double type was two to three times higher in efficiency than the single type in turbine revolution and power output. 2 refs., 13 figs.

  19. Report of the researcher exchange promotion project on the environmental issues in the Asia-Pacific region; Asia/Taiheiyo chiiki kankyo mondai kenkyusha koryu sokushin jigyo hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Proposals have been made for the establishment of a network (ETERNET-APR) linking those involved in the research and development of environmental technology in the Asia-Pacific region in order to limit the environmental impact of industrial activity. By pursuing active exchanges of information and personnel, researchers in environmental technology in the Asia-Pacific region have been making serious efforts to establish such a network. This fiscal year, the Internet Web site of the ETERNET-APR has been created using the data collected to date. This database includes information on some 350 researchers and 200 research projects from seven countries. The first international symposium was successfully held at Environmental Research Institute of Chulalongkorn University in Thailand (ERIC), hosting 200 environmental researchers from 10 countries in the Asia-Pacific region. Tripartite sister laboratories ties among the National Institute for Resources and Environment (NIRE) and three Korean laboratories were forged. The sister laboratory project between ICETT and ERIC is also proving effective. These successes prove that intraregional joint research, the objective of ETERNET-APR, has begun to take shape in this year

  20. Problems concerning abolishment of the ban on exportation of Alaskan crudeoil. Alaska gen'yu no yushutsu kaikin mondai no yukue

    Energy Technology Data Exchange (ETDEWEB)

    1994-08-01

    The ban on exhortation of Alaska North Slope (ANS) crude oil is being vigorously discussed on its maintenance or abolishment. The Department of Energy of the U.S. published the report which emphasized merits by abolishing the ban on ANS crude-oil exporting. The American Crew Union asserts that the Union will agree to the abolishment if ANS crude oil is transported by the Johns Act ships, which mean tankers built in the U.S., having the U.S. nationality, and plied by operation of the U.S. crews. The federal government of the U.S. declares that the government will not support the abolishment unless the items to restrict the transportation within Johns Act ships are deleted. It is said that British Petroleum, the largest producer of ANS crude oil, is sounding for the method in which use of the U.S. ships and employment of the U.S. crews for the transportation are guaranteed by direct contracts with the tanker owners and crews of the U.S. In any case, employment of U.S. crews is considered to the point to realize the abolishment of the bat on exportation of ANS crude oil.

  1. Survey on problems in developing technologies for the global environment issues (Version II); Chikyu kankyo mondai gijutsu kaihatsu kadai chosa. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-07-01

    This paper describes a survey on problems in developing technologies for the global environment issues. Technological development of means to reduce generation of environmental issues and substitutive means for non-generation thereof is being moved forward specifically in the Sunshine Project and the Moonlight Project. The Chemical Technology Research Institute assumes that it has a responsibility to positively contribute to developing a technological system that matches the substance circulation mechanism of the earth from the fields of chemistry. Therefore, the Institute has organized working groups that have been identifying problems from their expertise standpoints and have been extracting study assignments. Subsequent to the Version I, the Version II has been compiled. The Version II takes up the simulation of global warming mechanisms, behavior of gases dissolved in oceans, and possibility of fixing CO2 in oceans. With respect to fluorocarbons, the Version II describes development of substitutive substances, their stability, combustion method as a destruction technique, and destruction by means of super criticality. Regarding CO2, the version introduces technologies to re-use CO2 as a resource by means of membrane separation, storage, and contact hydrogenation. The volume also dwells on CO2 reduction by using photo-chemical and electrochemical reactions, CO2 reduction and photo-synthesis by using semiconductors as photo catalysts and electrodes. (NEDO)

  2. Effects of cellular telephone manipulation on driver`s performance; Jidosha untenchu no keitai denwa shiyo sosa ni kanrensuru mondai no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Tokunaga, R; Ozawa, M; Hagiwara, T [Hokkaido University, Sapporo (Japan); Takagi, H; Shimojo, A [Civil Engineering Research Institute of Hokkaido, Hokkaido (Japan)

    1997-10-01

    The present evaluates effects of cellular telephone manipulation on driver`s performance. The major independent variables were the reaction time and the mental workload. Hart et al. proposed the concept of the subjective mental workload. Experiments were conduced using a driving simulator without motion. Findings showed that the hands free system may provide less effect than the cellular telephone on the passenger seat on driver`s reaction time and mental workload. 4 refs., 2 tabs., 5 figs.

  3. Solution of combinatorial optimization problems by an accelerated hopfield neural network. Kobai kasokugata poppu firudo nyuraru netto ni yoru kumiawase saitekika mondai no kaiho

    Energy Technology Data Exchange (ETDEWEB)

    Ohori, T.; Yamamoto, H.; Setsu, Nenso; Watanabe, K. (Hokkaido Inst. of Technology, Hokkaido (Japan))

    1994-04-20

    The accelerated approximate solution of combinatorial optimization problems by symmetry integrating hopfield neural network (NN) has been applied to many combinatorial problems such as the traveling salesman problem, the network planning problem, etc. However, the hopfield NN converges to local minimum solutions very slowly. In this paper, a general inclination model composed by introducing an accelerated parameter to the hopfield model is proposed, and it has been shown that the acceleration parameter can make the model converge to the local minima more quickly. Moreover, simulation experiments for random quadratic combinatorial problems with two and twenty-five variables were carried out. The results show that the acceleration of convergence makes the attraction region of the local minimum change and the accuracy of solution worse. If an initial point is selected around the center of unit hyper cube, solutions with high accuracy not affected by the acceleration parameter can be obtained. 9 refs., 8 figs., 3 tabs.

  4. Method for the traveling salesman problem by controlling two parameters of the Hopfield neural network; Parameter seigyogata hop field net ni yoru junkai salesman mondai no kaiho

    Energy Technology Data Exchange (ETDEWEB)

    Setsu, N.; Murakami, K.; Ohori, T.; Watanabe, K. [Hokkaido Institute of Technology, Sapporo (Japan)

    1996-01-20

    For solving the traveling salesman problem (TSP) by using a continuous value outputting neural net (NN), an investigation was given on the accuracy of solution and the possibility on traveling routes by using the penalty coefficient and temperature as the parameters for energy functions. The parameter range to obtain high-quality traveling routes was shown by a numerical experiment. The experimental result revealed that, when the penalty coefficient `r` is large, the traveling route possibility tends to become higher, but the route length increases, and when the `r` is small, the traveling route possibility becomes lower, but the route length decreases, also in the continuous value outputting NN as in the two-value outputting NN. Noticing this fact, and in order to improve the traveling route possibility as well as the solution quality, a method was proposed to expand the penalty control method which was proposed previously by the authors on the two-value outputting NN, into the continuous value outputting NN. In addition, a proposal was also made on a method to derive an optimal temperature efficiently by using the golden section method. It was found that the relative error has been reduced by 48% on the average as compared with that in the conventional method in which the temperature is fixed. 6 refs., 5 figs.

  5. Genetic algorithm based on virus theory of evolution for traveling salesman problem; Virus shinkaron ni motozuku identeki algorithm no junkai salesman mondai eno oyo

    Energy Technology Data Exchange (ETDEWEB)

    Kubota, N. [Osaka Inst. of Technology, Osaka (Japan); Fukuda, T. [Nagoya University, Nagoya (Japan)

    1998-05-31

    This paper deals with virus evolutionary genetic algorithm. The genetic algorithms (GAs) have been demonstrated its effectiveness in optimization problems in these days. In general, the GAs simulate the survival of fittest by natural selection and the heredity of the Darwin`s theory of evolution. However, some types of evolutionary hypotheses such as neutral theory of molecular evolution, Imanishi`s evolutionary theory, serial symbiosis theory, and virus theory of evolution, have been proposed in addition to the Darwinism. Virus theory of evolution is based on the view that the virus transduction is a key mechanism for transporting segments of DNA across species. This paper proposes genetic algorithm based on the virus theory of evolution (VE-GA), which has two types of populations: host population and virus population. The VE-GA is composed of genetic operators and virus operators such as reverse transcription and incorporation. The reverse transcription operator transcribes virus genes on the chromosome of host individual and the incorporation operator creates new genotype of virus from host individual. These operators by virus population make it possible to transmit segment of DNA between individuals in the host population. Therefore, the VE-GA realizes not only vertical but also horizontal propagation of genetic information. Further, the VE-GA is applied to the traveling salesman problem in order to show the effectiveness. 20 refs., 10 figs., 3 tabs.

  6. Response to resolve environmental problems caused from power stations. Reuse engineering of waste water; Hatsudensho kankyo mondai kaiketsu e mukete no torikumi. Haisui no sairiyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Hayashida, T. [Hitachi Plant Engineering and Construction Co. Ltd., Tokyo (Japan); Hatta, T. [Kurita Water Industries Ltd., Tokyo (Japan)

    1997-10-15

    This paper introduces the electrodialysis method, the reverse osmosis method, and the evaporation system for reutilization of waste water in non-collection lines in power plants. In the electrodialysis method, waste water which has been divided and fed conventionally into a desalination chamber and a concentration chamber is supplied into the desalination chamber in the whole quantity to improve the recovery efficiency. A process of supplying sea water into the concentration chamber has made prevention of scaling possible. A small testing machine of high recovery electrodialysis system utilizing sea water was installed in an exclusively coal burning thermal power plant. A 3200-hour verification test has been performed, and its high treatment performance was verified. General waste water in thermal power plants is a waste water relatively less contaminated, which can be desalinated by using the reverse osmosis method to recover usable water at a low cost. However, the recovery rate decreases if salt concentration in the waste water is high. In contrast, the evaporation method can maintain the recovery rate at 90% or higher for salt concentration in the subject waste water of up to 20 g/l. Power plants in the United States built in inland areas use the evaporation method because of difficulty in obtaining sufficient amount of water. 6 refs., 22 figs., 7 tabs.

  7. Current status and prospect on photo-catalyst application in environmental problems; Kankyo mondai ni okeru hikari shokubai oyo no ganjo to tenbo

    Energy Technology Data Exchange (ETDEWEB)

    Watanabe, T. [Toto Ltd., Kitakyushu (Japan)

    1995-09-30

    This paper summarizes application of photo-catalysts in environmental problems. The paper lists examples of the application in residential environments. Photo-catalytic decomposition is possible by using ultraviolet rays contained in room illumination if the bacterial presence is sparse. The examples thereof may be cited as follows: if colon bacilli are suspended on a tile with TiO2 photo-catalyst sintered in it and exposed to room illumination, the bacteria are disinfected; using photo-catalysts in a bathroom suppresses deposition of Pseudomonas aeruginosa; a photo-catalyst tile (TiO2 loaded with Cu) and light irradiation reduce intensity of tobacco smoke odor; and adsorbents may be used simultaneously if intermediate products are odor generating substances. The examples of applying photo-catalysts to regional environments may be quoted as follows: growth of algae in a Petri dish is suppressed by presence of Cu loaded TiO2 under room illumination; this leads to an expectation on its effect in a relatively clean water environment; glass beads loaded with a TiO2 photo-catalyst placed in a gold fish breeding tank reduces turbidity, the number of colon bacilluses, and COD value; and the mortality in gold fish shows no change. With an objective of application to exterior building materials, photo-catalyst applied tiles were left outdoors for 160 days. Nitric acid ions were detected that are thought to have been generated by decomposition of microorganisms that have deposited on the tiles. 6 refs., 5 figs., 3 tabs.

  8. Energy, oil and global environmental problems towards21st. century. 21 seiki ni mukatte no energyter dot sekiyuter dot chikyu kankyo mondai

    Energy Technology Data Exchange (ETDEWEB)

    Ishikawa, K [Mitsubishi Oil Co. Ltd., Tokyo (Japan)

    1990-09-01

    The world energy demand is increasing with the development of the world economy and the improvement of the life level. In view of the future economic development and population growth, the world energy demand will considerably increase especially in the LDCs. Since the oil crisis, saving of energy and material were effectively executed, thus significantly reducing the energy requirement per GNP. However, in the recent several years, the conciousness of energy has become diluted, causing considerable consumption in larger size and higher grade products, thus increasing the non-industrial and transportation consumption. This report considered the effective use of energy and the nuclear application. It is to be noted that the accident frequency in the Japanese nuclear plants is much less than the other countries. The coal utilization requires further technical development in view of the environmental problems. Other substitutible energies are all weak in competition and cannot be expected utilizable in large scale for the time being. This report also referred to the oil problem. 9 figs.

  9. Task-specific shell for scheduling problems, ARES[sub TM]/SCH. Scheduling mondai muke task tokka shell ARES[sub TM]/SCH

    Energy Technology Data Exchange (ETDEWEB)

    Kojima, S; Narimatsu, K [Toshiba Corp., Tokyo (Japan)

    1994-08-01

    An Expert System (ES) Shell (developed by Toshiba Corp.) which applies to the scheduling of production plan and operation plan is introduced. It describes that this tool is equipped with flowchart editor and constraint condition editor which mention the knowledge related to scheduling method, and that the former expresses scheduling procedure knowledge in the form of flowchart by combining basic tasks prepared beforehand, and the latter expresses constraint conditions which should be satisfied by the schedule, and knowledge related to the priority order which should be considered in-between in the form of IF-THEN Rule which is very close to Japanese. In addition, the knowledge is equipped with knowledge debugging system which conducts debugging while executing the knowledge. It adds that by using this tool, the manhour required for the development and maintenance of ES can be reduced considerably. 2 refs., 3 figs.

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

    Energy Technology Data Exchange (ETDEWEB)

    1991-11-05

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

  11. Survey on the present situation and future outlook of energy/environment issues mainly on coal in the APEC region; APEC ikinai no sekitan wo chushin to suru energy kankyo mondai no genjo oyobi kongo no mitoshi ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    For the purpose of studying the energy supply/demand trend and the environmental problem relating mainly to coal in the APEC region, the paper surveyed the situation from the past to the present and outlooked the beginning of the 21st century. GDP in the whole APEC region increased at an annual rate of 3.4% from 1971 to 1991 and made a rapid growth of an annual rate over 7% especially in the non-OECD region. The supply/demand balance of coal, etc. in the non-OECD region is expected to be tight, and the energy price also to be higher. This will be a major factor causing hindrance to the economic growth of resource-importing countries. It is necessary to prepare the energy infrastructure. With the increasing coal utilization, it is feared that pollutants such as SOx, NOx and CO2 will increase, and it is necessary to introduce energy utilization technology/facilities which are high-efficient and environment-friendly and to expedite introduction of non-fossil energy. The APEC region, where the worldwide growth is expected, is a priming for the world development, and a policy which is well balanced in economic growth, stabilized energy supply, and environmental protection is needed for the region to achieve its sustainable growth. 50 figs., 24 tabs.

  12. Let everybody think about energy problems (what to do with energy supply). Electric power storage as a trump to make load flat; Energy mondai wo minnade kangaeyo (energy kyokyu wo dosuruka). Fuka heijunka no kirifuda (denryoku chozo)

    Energy Technology Data Exchange (ETDEWEB)

    Yamamoto, T. [Tokyo Electric Power Co., Inc. (Japan)

    1995-09-20

    Difference of electric power load between day and night has been growing due to increase of need for cooling in summer. In the case of Tokyo Electric Power Co., Ltd., the power maximum in a day exceeds 2-fold of the minimum. As a means of making load flat, power storage is a last resort to improve operation efficiency and suppress generation cost. Various technologies for electric power storage are overviewed and a sodium-sulfur (NaS) cell is introduced, whose practical application in near future is expected as a novel technology for power storage. Pumped storage generation has been put into practical use widely, sharing 10% of the overall capacity for generation facilities in Japan. However, since proper sites for its construction have been limited, compensating technologies, using electric cells, air compression, super-conduction and flywheels are in progress of research and development. There are three types of electric cells being under development; NaS, Zinc-bromine, redox flow cells. The NaS cell uses highly active electrodes of Na(+) and S(-), and {beta} alumina as electrolyte, which is neither electron-conductive nor self-discharging. 2 figs., 2 tabs.

  13. Improvement of algorithm using Kohonen`s self-organizing feature map for the traveling salesman problem; Kohonen jiko soshikika tokucho mappu wo mochiita ukai serusuman mondai kaiho no kairyo

    Energy Technology Data Exchange (ETDEWEB)

    Fujimura, K.; Tokutaka, H.; Tanaka, H.; Kishida, S. [Tottori Univ., Tottori (Japan); Oshima, Y. [Mita Industrial Co. Ltd., Osaka (Japan)

    1996-02-20

    Traveling salesman problem (TSP) is one of the combinatorial optimization problems. The solution of this problem is to seek the way of how to visit every city only once within the shortest traveling distance. The solutions of this problem are studied a lot hitherto since they are the index for observing the basic properties of optimization algorithm. The method of Angeniol using the elf-organizing feature map is greatly forceful from the viewpoint of its short calculating time. In this study, regarding the algorithm of Angeniol, the conditions of obtaining the shortest tour length within shorter time are examined. Namely, a half of calculating time is reduced by changing Angeniol method into the method of making the node create after the searches of M cities. Additionally, the calculating time for unchanged tour length is reduced to one fourth by adding an inertia item in accordance with the variation of the number of total nodes. 14 refs., 8 figs.

  14. Report on fiscal 1995 project to promote an exchange of researchers on environmental problems in the Asia-Pacific region; 1995 nendo itakujigyo (Asia/Taiheiyo chiiki kankyo mondai kenkyusha koryu sokushin jigyo hokokusho)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    For the purpose of solving environmental problems caused in association with the increasing industrial activities in the Asia-Pacific region, the construction of a research network is being advanced aiming at promoting exchanges with researchers of other countries and activating information exchanges. Investigators were sent overseas to grasp the present situation, and researchers participated in a symposium on the APEC environmental technology cooperation for mutual understanding and personal interchange. In the overseas survey, visits were paid mainly to national research institutes and universities in India and Thailand. Positive approval was obtained on the construction of the ETERNET APR (Environmental Technology Research Network in the Asia-Pacific Region). In the symposium on the APEC environmental technology cooperation held in Nagoya, researchers participated mostly in the second session and made earnest discussions with researchers from other countries. The necessity and importance of the network was emphasized. Countries which participated the symposium have problems common to each, and it was greatly significant to meet together and discuss together. The environmental problem is on a global scale, and it is necessary to make close exchange/interchange of information/opinion on a long term basis and to tackle it in the whole Asia-Pacific region. 3 tabs.

  15. Concerning problems of petroleum refining facilities. ; Promote international lateral work sharing, and strengthening of infrastructures in petroleum industry. Sekiyu seisei setsubi mondai ni tsuite. ; Kokusei suihei bungyo no suishin to sekiyu sangyo no kiban kyoka wo

    Energy Technology Data Exchange (ETDEWEB)

    1991-06-05

    This paper discusses how to promote international lateral work sharing and how to strengthen infrastructures in the petroleum industry, as a problem prevailing over the petroleum refining facilities in Japan. Excess distillation facilities have been applied with the disposition policy. However, in view of the supply and demand situation in petroleum products for medium to long term span in the world with the pan-Pacific region as the main concern, that applicable to Japan, and that experienced during the Persian Gulf crisis, the excess facility disposition policy was revised, particularly on white kerosene, of which supply and demand tightness is concerned about, so that production capacities may be increased as required. Japan, a large presence in the international economics, is required to work more positively on petroleum refining facilities located in the oil producing countries and intermediate locations to promote the international lateral work sharing. On the one hand, in order to strengthen the infrastructures in the Japanese petroleum industry, it is necessary to promote rationalization and use at higher efficiency of the oil supply system, and convergence of the the petroleum industry, including joint investments for projects exceeding capabilities of individual enterprises. 3 tabs.

  16. Politics of water resources and environmental problem. US-Japan comparative policy history on the public district; Mizushigen kaihatsu to kankyo mondai. Public district no Nichibei hikaku seisakushi kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Mikuriya, T [Tokyo Metropolitan University, Tokyo (Japan). Faculty of Engineering

    1994-12-15

    With an objective to give some suggestion to the water resources policies for the future Japan, a comparative study was made on the water resources development policies in Japan and the water resources policies in the state of California, U.S.A. The study on Japan has been proceeded empirically based on specific data with regard to the development of electric power policies from the prewar to postwar times when the governmental electric power control was changed to incorporation of the nine electric power companies. The change may be identified from viewpoints of both profit and ideology. Noticing the `public corporations` established one after another for social capitals before and after the establishment of the Liberal Democratic Party, their relation with the water resources development policies was pursued in terms of actual proof and political science. The identity of the public corporations established in and after 1955 stands on the premise of free economy, rather than the controlled economy. This paper positions the water resources development policies in a broader context as the national land plan, and considers the problems that are expanding from flood damages, dam construction, industrial complex construction to environmental problems around the water. Comparative discussions on the Tone river system and the Colorado river system were left as the future assignment.

  17. FY 2000 report on the study of energy conservation by industrial field recycling of global warming gas as a policy for the global environmental problem and the survey of international cooperation application; 2000 nendo chikyu kankyo mondai taisaku to shite no ondanka gas no sagyo bun'ya recycle ni yoru sho energy ka kento to kokusai kyoryoku tekiyo chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    In this report, for Japan and typical developing countries and for the CO2 emitted from the combustion process of the fixed type exhaust source which is easy in recovery, technical problems and economical problems were made clear in case of using the recovered CO2 for the industrial field, and at the same time, effects of the energy conservation were studied. As to CO2, the two methods were considered: a method to use the recovered CO2 as it is and a method to use the carbon compound obtained by reducing CO2 by any method. Further, in the industrial field, there are a lot of industries which use CO2, carbon, methanol, etc., and in the present situation fossil fuel is used for production materials such as CO2, carbon and methanol. As substitutes for fossil fuels for the industries using these hydrocarbons as raw material, the use of the recovered CO2 and the synthesized hydrocarbon was considered. And, survey was made of the applicable industrial fields, the amount of the recovered CO2 use there, and effects of energy conservation by reduction in amount of the fossil fuel use. (NEDO)

  18. Fiscal 2000 survey report on Asia/Pacific Regional Environment Problems Researcher Exchange Promotion Projects. Construction of Environmental Technology Research Network in the Asia/Pacific Region; 2000 nendo Asia Taiheiyo chiiki kankyo mondai kenkyusha koryu sokushin jigyo hokokusho. Asia/Taiheiyo chiiki kankyo gijutsu kenkyu kaihatsu network kochiku chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the purpose of developing and popularizing environment conservation technologies in the Asia/Pacific region, activities were conducted for Environmental Technology Research Network in the Asia/Pacific Area (ETERNET-APR). In this fiscal year, under the motto of Expansion of International Collaborative Researches on Environmental Technology, a 7th international workshop was held in Yokkaichi City, Mie Prefecture, with the attendance of approximately 60 people in Japan and from abroad. Researchers from overseas, in addition, attended a 10-day training program at the National Institute for Resources and Development and others in preparation for the embodiment of international collaborative research. A survey was conducted overseas for the promotion of database utilization and registration and for grasping the problems intrinsic to the respective research institutes and problems to occur at every stage of development. People's Republic of China was visited, where a miniscale workshop was held, study tours were made, and opinions were exchanged. It was actually felt, at the places that were visited, that ETERNET-APR was certainly in function in various fields. (NEDO)

  19. Application of forking genetic algorithm to the estimation of an S-wave-velocity structure from Rayleigh-wave dispersion data. With special reference to an exploration method using microtremors; Rayleigh ha no bunsan data kara S ha sokudo kozo wo suiteisuru inversion mondai eno kotaigun tansaku bunkigata identeki algorithm no tekiyo. Bido tansaho ni kanrenshite

    Energy Technology Data Exchange (ETDEWEB)

    Cho, I; Nakanishi, I [Kyoto University, Kyoto (Japan); Ling, S [Nihon Nessui Corp., Tokyo (Japan); Okada, H [Hokkaido University, Sapporo (Japan)

    1997-10-22

    Discussions were given on a genetic algorithm as a means to solve simultaneously the problems related to stability of solution and dependence on an initial model in estimating subsurface structures using the microtremor exploration method. In the study, a forking genetic algorithm (fGA) to explore solid substance groups was applied to the optimizing simulations for a velocity structure model to discuss whether the algorithm can be used practically. The simulation No. 1 was performed by making the number of layers four for both of the given velocity structure and the optimizing model. On the other hand, the simulation No. 2 was executed by making the number of layers for the given velocity structure greater than that for the optimizing model. As a result, it was verified that wide range exploration may be possible for the velocity structure model, and that a large number of candidates for the velocity structure model may be proposed. In either case, the exploration capability of the fGA exceeded that of the standard simple genetic algorithm. 8 refs., 4 figs., 2 tabs.

  20. Research report for fiscal 1998 including researches into global environmental problems. Business report on the promotion of interaction of scientists over environmental problems in the Asia-Pacific region; 1998 nendo Asia/Taiheiyo chiiki kankyo mondai kenkyusha koryu sokushin jigyo hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Global environmental problems are growing quite serious in developing countries, yet they are requested to properly deal with them without making light of sustainable development, for which international cooperation and diffusion of technologies for the development of environmental technologies are mandatory. Japan, utilizing what it learned from pollution within in the past and making the best use of its technologies and knowledge for environmental improvement in developing countries in Asia, has been hosting since fiscal 1997 a function of Environmental Technology Research Network in the Asia-Pacific Region function. In fiscal 1998, a fifth international symposium was convened at Science City Center at the foot of Mt. Suzuka on November 26 and 27. The central theme was the development of environmental technologies and international cooperation for developing nations, and the event attracted 180 participants from inside Japan and abroad. A number of concrete themes came out of working groups on water quality, air quality, and energy/waste, which concerned the drafting of propositions for international collaborative researches. As for researches abroad, four typical Malaysian institutes were visited. (NEDO)

  1. Survey report in fiscal 1999 on investigations for the current status in energy and environmental problems in Japan and the U.S.A., and investigations on technological development related to energies; 1999 nendo Nichibei ni okeru energy kankyo mondai no genjo chosa oyobi energy ni kakawaru gijutsu kaihatsu chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This paper reports the surveys in fiscal 1999 on energy and developmental problems in Japan and the U.S.A. New and complex environmental problems are rising to the surface, such as global warming, ozone layer destruction, and chemical harms. It is necessary to deepen quickly scientific understanding of the problems, and identify accurately their impacts on human bodies and ecological systems. Within the limitation of the scientific understanding, political decisions on economy and environmental risks are also important and difficult questions, with the environmental hormones being the typical examples. Establishing chemical substance verification systems is important, whereas joint researches by Japan and the U.S.A. are desired. Policy decisions on handling the researches must also be made jointly, and acceptance by citizens must be asked for at international workshops. While energies are the base of economic activities, and the sustained development thereof is indispensable, how to take balance with health and environment in the global scale is a large assignment. Joint Japan-U.S. discussions are required on technological innovation, such as for regenerative energies, energy conservation, safety of and wastes from nuclear reactors, clean use of fossil fuels, and fuel cells. International cooperation, including that from developing countries, is also important. (NEDO)

  2. FY 1999 Project of information exchange by researchers on environmental problems in the Asia-Pacific region. Report on investigations for establishing Environmental Technology Research Network in the Asia-Pacific Region; 1999 nendo Asia/Taiheiyo chiiki kankyo mondai kenkyusha koryu sokushin jigyo hokokusho. Asia/Taiheiyo chiiki kankyo gijutsu kenkyu kaihtsu network kochiku chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Described herein are the results of the FY 1999 activities for the project of information exchange by researchers on environmental problems in the Asia-Pacific region. In 1999, the 6th International Workshop was held in City of Yokkaichi, Mie Pref., with the theme (Implementation of international collaborative researches on environmental technology) at International Center for Environmental Technology Transfer, with a total of more than 50 domestic and foreign attendees actively participating in the discussion. The keynote addresses were (Use of coal and environmental improvements) presented by Mr. Yoshisada Nitta, Director at Central Research Institute of Electric Power Industry, and (Potential of clean fuel from biomass) presented by Dr. Kyu-Wan Lee of Korea Research Institute of Chemical Technology. The overseas surveys were conducted to promote the use and registration of the databases, and to identify problems by the on-the-spot investigations in Vietnam, the Philippines and Republic of Korea. At the same time, the mini-workshops were held for information exchange with the research institutes. It is keenly felt that Environmental Technology Research Network in the Asia-Pacific Region (ENTERNET-APR) works certainly in various areas, with the attendees in the last workshops serving as the key persons. (NEDO)

  3. A new virtual instrument for estimating punch velocity in combat sports.

    Science.gov (United States)

    Urbinati, K S; Scheeren, E; Nohama, P

    2013-01-01

    For improving the performance in combat sport, especially percussion, it is necessary achieving high velocity in punches and kicks. The aim of this study was to evaluate the applicability of 3D accelerometry in a Virtual Instrumentation System (VIS) designed for estimating punch velocity in combat sports. It was conducted in two phases: (1) integration of the 3D accelerometer with the communication interface and software for processing and visualization, and (2) applicability of the system. Fifteen karate athletes performed five gyaku zuki type punches (with reverse leg) using the accelerometer on the 3rd metacarpal on the back of the hand. It was performed nonparametric Mann-Whitney U-test to determine differences in the mean linear velocity among three punches performed sequentially (p sport.

  4. Data file on retention and excretion of inhaled radionuclides calculated using ICRP dosimetric models

    International Nuclear Information System (INIS)

    Ishigure, Nobuhito; Nakano, Takashi; Enomoto, Hiroko; Shimo, Michikuni; Inaba, Jiro

    2000-01-01

    The authors have computed whole-body or a specific organ content and the daily urinary and faecal excretion rate of some selected radionuclides following acute intake by inhalation and ingestion, where the ICRP new respiratory tract model (ICRP Publication 66) and the latest ICRP biokinetic models were applied. The results were compiled in a file of MS Excel. The file was tentatively called MONDAI for reference. MONDAI contains the data for all radionuclides in ICRP Publications 54 and 78 and, in addition, some other radionuclides which are important from the viewpoint of occupational exposure in nuclear industry, research and medicine. They are H-3, P-32, Cr-51, Mn-54, Fe-59, Co-57, Co-58, Co-60, Zn-65, Rb-86, Sr-85, Sr-89, Sr-90, Zr-95, Ru-106, Ag-110m, Sb-124, Sb-125, I-125, I-129, I-131, Cs-134, Cs-137, Ba-140, Ce-141, Ce-144, Hg-203, Ra-226, Ra-228, Th-228, Th-232, U-234, U-235, U-238, Np-237, Pu-238, Pu-239, Pu-240, Am-241, Cm-242, Cm-244 and Cf-252. The day-by-day data up to 1000 days and the data at every 10 days up to 10000 days are presented. The following ICRP default values for the physical characteristics of the radioactive aerosols were used: AMAD=5 micron, geometric SD=2.5, particle density = 3 g/cm 3 , particle shape factor = 1.5. The subject exposed to the aerosols is the ICRP reference worker doing light work: light exercise with the ventilation rate of 1.5 m 3 /h for 5.5 h + sitting with the ventilation rate of 0.54 m 3 /h for 2.5 h. MONDAI was originally made by Version 7.0 of MS Excel for Windows 95, but the file was saved in the form of Ver. 4.0 as well as Ver. 7.0. Therefore, if the user has Ver. 4.0 or an upper version, he can open the file and operate it. With the graph-wizard of MS Excel the user can easily make a diagram for the retention or daily excretion of a radionuclide of interest. The dose coefficient (Sv/Bq intake) of each radionuclide for each absorption type given in ICRP Publication 68 was also written in each sheet. Therefore

  5. PENGEMBANGAN MODEL LATIHAN KARATE KIDS PADA ANAK USIA SEKOLAH DASAR KELAS ATAS

    Directory of Open Access Journals (Sweden)

    Widha Srianto

    2014-09-01

    Full Text Available Penelitian ini bertujuan untuk menghasilkan model latihan karate kids pada anak usia sekolah dasar (SD kelas atas (10-12 tahun. Penelitian pengembangan ini dilakukan dengan mengadaptasi langkah-langkah penelitian sebagai berikut: (1 pengumpulan informasi di lapangan, (2 melakukan analisis terhadap informasi yang telah dikumpulkan, (3 mengembangkan produk awal, (4 validasi ahli dan revisi, (5 uji coba lapangan skala kecil dan revisi,  (6 uji coba lapangan skala besar dan revisi, dan (7 pembuatan produk final. Uji coba skala kecil dilakukan di klub Forki Kota Yogyakarta berjumlah 7 anak. Uji coba skala besar di klub Inkanas DIY berjumlah 16 anak. Instrumen pengumpulan data yang digunakan yaitu: (1 pedoman wawancara, (2 skala nilai, (3 pedoman observasi model, (4 pedoman observasi keefektifan model, dan (5 kuesioner untuk siswa. Teknik analisis data yang dilakukan yaitu analisis deskriptif kuantitatif dan analisis deskriptif kualitatif. Hasil penelitian ini berupa model latihan karate kids pada anak usia SD kelas atas (10-12 tahun yaitu: (1 model latihan maegeri, (2 model latihan gyaku tsuki, (3 model latihan mawashigeri, dan (4 model latihan oi tsuki. Dari hasil analisis data penilaian para ahli materi dan kuesioner anak, dapat ditarik kesimpulan bahwa model latihan karate kids pada anak usia SD kelas atas (10-12 tahun ini dinilai baik dan efektif. Kata kunci: model latihan, karate kids

  6. Chang Kai-shek's “Humanitarian Bombs” and the Mirage Known as the “Manchurian-Mongolian Problem”: New Japanese-Language Perspectives on the Transnational History of Modern East Asia

    Directory of Open Access Journals (Sweden)

    Kyu Hyun Kim

    2014-06-01

    Full Text Available On May 20, 1938, two American-made Chinese airplanes—Martin B-10 monoplane bombers—took off from Ningbo, Fujian province, in the direction of southwestern Japan. Instead of dropping bombs, they released propaganda materials produced by the Nationalist Party (Guomindang, pleading with the industrial workers, farmers, and petty bourgeois citizens of Japan to stop fighting China and resist their militarist government. This “humanitarian bombardment,” masterminded by Chiang Kai-shek, is little known today—perhaps deservedly so, for it had its embarrassing features. For one, the planes never reached the strategically important areas and merely flew over sparsely populated regions of Kumamoto and Miyazaki prefectures. Further, the propaganda materials were either voluntarily turned over to or confiscated by the Japanese authorities almost as soon as they hit the ground. As far as we can tell, the operation had little impact on the Japanese attitude toward China or on the Second Sino-Japanese War (1937–1945... Iechika Ryōko 家近亮子,Shō Kaiseki no gaikō senryaku to Nitchū sensō 蒋介石の外交戦略と日中戦争[Chiang Kai-shek's diplomatic strategies and the Sino-Japanese War]. Tokyo: Iwanami Shoten, 2012. ISBN: 978-4-00-025865-4. Nakami Tatsuo 中見立夫, 'Manmō mondai' no rekishiteki kōzu 満蒙問題の歴史的構図 [The historical composition of the “Manchurian-Mongolian problem”]. Tokyo: Daigaku Shuppankai, 2013. ISBN: 978-4-86-337131-6.