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Sample records for nanometa seigyo hikari

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-04-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1994-06-20

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

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

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

    1999-02-15

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

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

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

    1996-04-01

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

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

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

    2000-03-31

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

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

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    NONE

    1997-03-01

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

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

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    NONE

    2000-03-01

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

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

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    NONE

    1986-03-01

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

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

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    NONE

    2001-03-01

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

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

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

    1997-02-01

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

  11. Visualising ‘Unacceptable’ Lives? The Moving Story of Hikari to tomo ni (With the Light: Raising an Autistic Child, 2001-2010

    Directory of Open Access Journals (Sweden)

    Mio Bryce

    2014-08-01

    Full Text Available In this article we will interrogate the notion of ‘the unacceptable’ by tracing the movement of a particular text – a series of manga novels by Keiko Tobe entitled Hikari to tomo ni (With the Light: Raising an Autistic Child, 2001-2010 – from serialisation in a Japanese women’s magazine, to publication in Japanese as a series of manga novels, to publication in English in book form. In following this text – a narrative of parenting a child with autism from birth to adolescence - through its various contexts of production and reception, we want to raise doubts about a shibboleth of a particular kind of media and cultural studies - that the unacceptability of a text in mainstream popular or political contexts makes it particularly interesting from a scholarly point of view. Our account of Hikari to tomo ni’s movement through its various contexts of publication and reception supports Mitchell and Snyder’s argument that disability politics does not allow easy categorization of representations into ‘straightforward catalogues of “acceptable” and “unacceptable”’ (Mitchell and Snyder, 2001, 213. The context of the original publication of the serial in Japan demonstrates the barriers to publication of manga centring on experiences of disablement. Such stories were seen as commercially unacceptable not only because they seemed difficult to market as entertainment, but also because they required the use of contested language which might draw unprofitable attention. Tobe’s work and its enthusiastic reception by the readers of For Mrs. ultimately overcame publishers’ qualms. Yet the visual strategies adopted by Hikari to tomo ni and the reception of this manga in an English language context demonstrate the way its writer and publishers manage its apparently unacceptable theme.

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

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    NONE

    1997-03-01

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

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

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    NONE

    1986-08-01

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

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

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

    1997-02-01

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

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

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    NONE

    1990-03-01

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

  16. Frontier of nanometer devices. Part 2. Trends in nanostructure fabrication technology. Nanometa debaisu kenkyu saizensen. 2. Nanometa bisai kako gijutsu no genjo to tenbo

    Energy Technology Data Exchange (ETDEWEB)

    Matsui, S [NEC Corp., Tokyo (Japan)

    1994-06-20

    Nanometer fabrication technology shows a remarkable progress. Conventional electric beam enables 10 nm lithography and the scanning transmission electron microscopy (STEM) and the scanning tunneling microscopy (STM) enable fabrication below 10 nm even to the level of atom and molecule manipulation. This paper describes the recent trends in nanotechnology (nanolithography and nano dry etching) by the use of electron and ion beams. In the atom technology by the use of STM, studies are in progress on processing with atomic force, electric field evaporation and chemical reaction. Moreover, this paper describes recent development in nano natural lithography, self-formation lithography, atomic layer lithography and nanolithography using electron beam holography. The present state and future prospects are discussed. 31 refs., 10 figs., 1 tab.

  17. Photoenhanced atomic layer epitaxy. Hikari reiki genshiso epitaxy

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    Mashita, M.; Kawakyu, Y. (Toshiba corp., Tokyo (Japan))

    1991-10-01

    The growth temperature range was greatly expanded of atomic layer epitaxy (ALE) expected as the growth process of ultra-thin stacks. Ga layers and As layers were formed one after the other on a GaAs substrate in the atmosphere of trimethylgallium (TMG) or AsH{sub 2} supplied alternately, by KrF excimer laser irradiation normal to the substrate. As a result, the growth temperature range was 460-540{degree}C nearly 10 times that of 500 {plus minus} several degrees centigrade in conventional thermal growth method. Based on the experimental result where light absorption of source molecules adsorbed on a substrate surface was larger than that under gaseous phase condition, new adsorbed layer enhancement model was proposed to explain above irradiation effect verifying it by experiments. As this photoenhancement technique is applied to other materials, possible fabrication of new crystal structures as a super lattice with ultra-thin stacks of single atomic layers is expected because of a larger freedom in material combination for hetero-ALE. 11 refs., 7 figs.

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

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

    1990-07-01

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

  19. Recent advances in photoelectrochemistry. Part 1. Preparation and photocatalytic activities of semiconductor microcrystals; Saikin no hikari denki kagaku. 1. Handotai chobiryushi no chosei to hikari shokubai kassei

    Energy Technology Data Exchange (ETDEWEB)

    Yoneyama, H; Torimoto, T [Osaka Univ., Osaka (Japan). Faculty of Engineering

    1995-01-05

    The energy structure of semiconductor microcrystals with less than 10nm particle size is different from that of bulk semiconductor, and the reducing force of electrons and the oxidizing force of holes produced by light in microcrystals are larger than those of bulk semiconductor. Focusing on the application of semiconductor microcrystals to photocatalysis, the effects of the particle size and surface conditions of particles on photocatalytic activity are discussed. It has been shown that the change in the characteristics of semiconductor microcrystals depends on particle size, and microcrystals with narrow distribution of particle sized is necessary for the study of the characteristics of semiconductor microcrystals. An example of high efficient progress of CO2 direct reduction by the use of semiconductor microcrystals is introduced. It has been made clear that the photocatalytic activity of semiconductor is improved when a small amount of electrode catalyst is supported in it. A unique photocatalytic reaction which can not be observed with bulk particles can be progressed by the use of high oxidation and reduction ability caused by quantum size effect of semiconductor microcrystals. 26 refs., 2 figs., 1 tab.

  20. Recent advances in photoelectrochemistry. Part 3. Recent applications of photocatalysis; Saikin no hikari denki kagaku. 3. Hikari shokubai no jitsuyoka kenkyu no genjo

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    Murasawa, S [Ishihara Sangyo Kaisha Ltd., Osaka (Japan)

    1995-01-05

    Titanium oxide has been developed which can be put to practical use in photocatalysis, and trials have been carried out for the application to environmental processing. Some of the cases are quoted to investigate means for the application of the photocatalysis study. During the process of improving the light resistance of titanium oxide pigments, various knowledge on photocatalytic phenomena has been obtained, and titanium oxide having a strong enough activity suitable for practical use is obtained based on the knowledge. There are two methods for the application of photocatalysis to decomposition and deodorization of malodor in living space. Fixation of NOx has been studied to solve the problem of air pollution. A huge reactor is required if photocatalysis is applied to the treatment of a large quantity of water. Various kinds of approach may be needed to structure a compact reactor suitable for practical use. 14 refs., 3 figs., 2 tabs.

  1. Surface wettability control by titanium dioxide photo-induced reaction. Super-hydrophilic properties; Sanka chitan ni yoru hikari reiki shinsuika gijutsu. Hikari shokubai chosinsuisei

    Energy Technology Data Exchange (ETDEWEB)

    Watanabe, T. [The University of Tokyo, Tokyo (Japan). Research Center for Advanced Science and Technology

    1999-05-01

    Hydrophilicity results when the surface of titanium dioxide is reduced for the specified oxygen to be replaced by hydroxyl groups. The ease with which such a structural change occurs is subject to variation between titanium dioxide crystal surfaces, and is dependent greatly on the atmosphere. No hydrophilic trend is observed in an atmosphere of oxygen only without moisture and, in darkness without light, hydrophobicity occurs early. Although the contacta angle titanium dioxide with water with stability is not known, yet it is presumed, on the analogy of the case of strontium titanate, that it is in the range of 20-40 degrees. A hydrophilic trend below the range is attrributed to structural changes. The control of surface wettability is one of the basic tasks to fulfill in various kinds of mechanisms and manufacturing processes. The technology of wettability control using a titanium dioxide coating which is quite durable will be applied not only to functions involving defogging, dripproof, and self-cleaning, but also to the control of heat transmission in the mechanism and to the bonding process. (NEDO)

  2. Surface wettability control by titanium dioxide photo-induced reaction. Super-hydrophilic properties. Sanka chitan ni yoru hikari reiki shinsuika gijutsu. Hikari shokubai chosinsuisei

    Energy Technology Data Exchange (ETDEWEB)

    Watanabe, T. (The University of Tokyo, Tokyo (Japan). Research Center for Advanced Science and Technology)

    1999-05-01

    Hydrophilicity results when the surface of titanium dioxide is reduced for the specified oxygen to be replaced by hydroxyl groups. The ease with which such a structural change occurs is subject to variation between titanium dioxide crystal surfaces, and is dependent greatly on the atmosphere. No hydrophilic trend is observed in an atmosphere of oxygen only without moisture and, in darkness without light, hydrophobicity occurs early. Although the contacta angle titanium dioxide with water with stability is not known, yet it is presumed, on the analogy of the case of strontium titanate, that it is in the range of 20-40 degrees. A hydrophilic trend below the range is attrributed to structural changes. The control of surface wettability is one of the basic tasks to fulfill in various kinds of mechanisms and manufacturing processes. The technology of wettability control using a titanium dioxide coating which is quite durable will be applied not only to functions involving defogging, dripproof, and self-cleaning, but also to the control of heat transmission in the mechanism and to the bonding process. (NEDO)

  3. Air environment purification using photocatalyst. Hikari shokubai ni yoru taiki kankyo joka

    Energy Technology Data Exchange (ETDEWEB)

    Takeuchi, K [National Institute for Resources and Environment, Tsukuba (Japan)

    1993-12-02

    Noticing that metal oxides have photocatalysis for reduction in NOx concentration and examining effects of the TiO2 selected on removal of pollutant, the paper proposes a direct purification method for the air environment. Since TiO2 causes electron excitation meeting near ultraviolet irradiation, it manifests a catalytic function for various oxidation/reduction reactions. Details of the reaction mechanism are unknown, various active oxygen species generated on the surface of TiO2 under light irradiation oxidize NOx and acquire it as nitric acid on the surface. It is found that mixture of activated carbon of low hygroscopicity with TiO2 is effective to prevent a tendency of NO to desorb before NO becomes nitric acid. What 40% of the catalyst with fluorine resin is formed into like a sheet shows a high removal rate even in the amount of ultraviolet irradiation in a winter cloudy day in the wide range of 0.5 - 95.0% of NOx and SO2, and if the photocatalyst is applied to the side wall of city buildings, the NOx concentration is estimated to be reduced by as much as 20%. 5 refs., 3 figs.

  4. Laser material purification of neodymium. Hikari reiki seiseiho ni yoru neodymium no kojundoka

    Energy Technology Data Exchange (ETDEWEB)

    Ogawa, Y.; Ozaki, T.; Yoshimatsu, S. (National Research Institute for Metals, Tokyo (Japan)); Chiba, K.; Umeda, H.; Saeki, M. (Nippon Steel Corp., Tokyo (Japan))

    1991-05-20

    Selective photoexcitation and photoionization of neodymium atoms were studied basically by using laser. Also, using their properties, feasibility of laser material purification (LPM) technology in gaseous phase was presented. In the selective 3-step ionization, laser beam with two kinds of proper wave length causes resonance exitation of the target element, which goes up to the excitation level of the first step, and the element is ionized by the second laser beam and the third laser beam. The 3-step ionization scheme by a single wave length laser beam of 577.612nm was used for the ionization of Nd. Nd ionized selectively by laser beam was recovered as thin layer at the negative potential side of plane electrodes placed at both sides of the laser irradiation area. In the layer formed by the TPD technology with this scheme, it is possible to decrease impuritis such as Pr by 1/16 and to form highly purified thin layer. 13 refs., 12 figs., 1 tab.

  5. Application of photocatalysts for amenities; Kaiteki kukan no tameno hikari shokubai

    Energy Technology Data Exchange (ETDEWEB)

    Sugawara, T. [Akita Univ., Akita (Japan). Mining College

    1996-03-01

    Catalysts with strong decomposing power are necessary in removing the stink of toilets and diapers, the smoke of cigarettes, lampblack in kitchens and mold in bathrooms etc. One of such catalysts attracting attention is titania (Ti02) photocatalyst. Titania has a strong oxidizing force due to its ability to absorb light with a wavelength under 400nm, and meanwhile this substance itself is chemically stable and tender to environment. In this paper, simultaneously with the introduction of the design examples applying the performance and properties of such catalysts, the evaluation on the performance of utility photocatalysts is described. The examples of using tiles with titania coated on ceramic tiles and the photocatalysts obtained by fixing supermicro-particles of titania catalysts with fluorine resin as a binder to decompose the oil vapor near a ventilation fan above a kitchen range and the tobacco tar whose concentration level is as in a living room are introduced as the design examples of utility photocatalysts. 13 refs., 6 figs.

  6. Achievement report for fiscal 1998. Optical tomographic system; 1998 nendo seika hokokusho. Hikari danso imaging system

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-05-01

    Evaluations were given on spatial resolution and measurement time of an optical tomographic system by using the developed 64-channel time-resolved spectroscopy and an image reconstruction algorithm. With respect to the spatial resolution, the target value of 1 cm was verified from tomographic images of a phantom with a diameter of 10cm, simulating a neonate. The measurement time achieved 20 minutes, being one third of the target value. In installing the equipment at Hokkaido University, speeds of the optical switches and attenuators were increased to have reduced the measurement time to one minute. For installation at Kanagawa Rehabilitation Center, development has been made on a nano-second light pulser, whose average beam quantity has been increased to 40 times, and improvement has been given on the optical switches, the attenuators, and the indication software, by which the measurement time was decreased further by 30 seconds than that at Hokkaido University. In performing the clinical evaluation, the evaluation protocol resolved by the Experiment Evaluation Special Committee was submitted for deliberation at the Medical Welfare Device Clinical Evaluation Committee. Upon having been authorized by the Committee, the clinical evaluations were performed at Hokkaido University and the Kanagawa Rehabilitation Center. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-08-20

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1998-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1995-11-20

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-06-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-08-25

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1993-06-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    Chikazawa, Masatoshi

    1999-01-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-06-30

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    Okuno, Y.

    1993-01-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1991-11-15

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1993-09-20

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

  1. Effect of surface irradiation during the photo-CVD deposition of a-Si:H thin films. Hikari CVD ho ni yoru amorphous silicon sakuseiji no kiban hikari reiki koka

    Energy Technology Data Exchange (ETDEWEB)

    Tasaka, K.; Doering, H.; Hashimoto, K.; Fujishima, A. (The University of Tokyo, Tokyo (Japan))

    1990-12-06

    This paper shows the impact of the irradiation from an additional light source during the deposition of hydrogenated amorphous silicon by photo-CVD deposition. Using a mercury sensitized photo-CVD process from Disilan (Si {sub 2} H {sub 6}) and hydrogen, silicon was deposited. A 40W low pressure mercury lamp was applied as the light source. A portion of the substrate was in addition irradiated using an Xg-He lamp through a thermal filter. Irradiation of the substrate using only Xg-He lamp produced no deposition, since this light has a wavelength which is too long to produce the SiH {sub 3}-radicals needed for Si deposition. The additional Xg-He light source was discovered to cause an increased thickness of deposited a-Si:H film and a transmission of the band structure. The reasons of these are considered that the influence of irradiation is not limited to film thickness, but that irradiation also impacts the composition of the a-Si:H film so as to cause a reduction in the hydrogen content. 10 figs., 1 tab.

  2. Committee report on visual appearance of neon lights. Neon no hikari no miekata ni kansuru tokubetsu kenkyu iinkai hokoku

    Energy Technology Data Exchange (ETDEWEB)

    Kansaku, H. (Chukyo University, Nagoya (Japan). Faculty of Letters)

    1991-04-25

    Were summarized the results of experiments and literature searches, conducted by the Commettee on Visual Appearance of Neon Lights,'' which was set up to provide scientific and basic data for understanding of relationship between neon lights and psychological reaction of human, and for realizing of neon sign advertisements with playing a role as neon lights and without any environmental problems. Analytical results of influences of six colors, such as red, yellow, green, blue, violet, and white, brightnesses, and flickering frequencies to the psycological reaction of human on the direct observations of neon lights were described. Results of influences of the neon light incidence into the room to the psychology of residents were also introduced. Furthermore, evaluation of neon lights as an aspect was discussed. Consequently, based on the combination of activity and estimativity, some attentions to be payed on the setting-up of neon lights were pointed out. A red flickering neon light'' was given as clearly a bad example. 2 figs.

  3. FY1995 optoelectronic devices and circuits for terabit class network; 1995 nendo terabit kyu network yo hikari denshi device kairo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The necessary technology realizing Terabit class optical network is the signal multiplexing both in temporal and spectral domains. Controllability of ultrafast optoelectronic systems is therefore the priority issue. Specifically we chose semiconductor lasers as the key devices. The methodology for performance improvement and the creation of novel functionality are investigated. Firstly compression of semiconductor laser pulse reached the world record of 65 femto second. Secondly a proposal was made to control mode locked semiconductor lasers via subharmonic synchronization and a substantial phase noise reduction was demonstrated. Thirdly a new technology was developed to realize broadband anti-reflection coating on semiconductor laser amplifier facet, bringing about significant performance improvement. To compensate the dispersion induced signal distortion a broadband semiconductor laser amplifier four wave mixing was analyzed and also demonstrated experimentally. (NEDO)

  4. Power feeding to terminal devices in optical subscriber network; Hikari fuaiba tsushin ni okeru tanmatsu kiki eno kyuden

    Energy Technology Data Exchange (ETDEWEB)

    Yamasaki, M

    1998-09-01

    This paper outlines present state of the feeding system in the light access system in consideration of backup in case of home power failure. In the optical communication, equipment with bilateral conversion function for light and electricity has to be installed both on communication service side and home side. Outline of the light access system and equipment requiring backup are shown. The following items are explained: main types of the light access system, such as FTTC (fiber to the curb), FTTP (fiber to the pole), FTTH (fiber to the home) and HFC (hybrid fiber coax), and the feeding system; problems on feeding system for the light access system. Key elements of ONU (optical network unit) for FTTH and construction of the ONU power source are illustrated. The ONU power source is composed of a backup power supply unit and main body supply unit. Backup power is indispensable to the ONU and analog telephones: output is supplied by the backup batteries in power failure. For miniaturization of the backup power source, power supply circuits and backup batteries have to be miniaturized simultaneously. History of miniaturization is explained on the experimental models. 6 refs., 7 figs., 1 tab.

  5. FY 1995 research for optical diagnosis by contrast agent; 1995 nendo hikari toresa wo riyoshita atarashii bunko shindanhono kiso kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    For expanding the optical diagnosis to clinical medicine, we tried to use the several optical characteristics of living tissues in addition to absorption measurements of blood. The scattering and luminescence of the tissue were examined in detail. The final goal of the research is to introduce the contrast agent active in the near-infrared region. (1) We have succeeded in obtaining the scattering and absorption coefficients separately from the time-resolved data of living tissues such as rat head and even human head. Then, based on the basic equations derived from our experiments, the quantification of the absolute absorbance was performed. (2) Using the near-infrared fluorescent dye, Rhodanine 800, we could monitor the energy state of tissues. We concluded that Rhodamine 800 is the possible candidate for energy-reporting contrast agent applicable to near-infrared spectrophatometry. (NEDO)

  6. Temperature measurement of geothermal wells by optical fiber sensor; Hikari fiber sensor wo mochiita chinetsusei no ondo bunpu keisoku

    Energy Technology Data Exchange (ETDEWEB)

    Matsushima, N; Sakaguchi, K [Geological Survey of Japan, Tsukuba (Japan)

    1996-10-01

    Experiments of temperature measurement were conducted in high temperature and high pressure geothermal wells using optical fiber sensor. A temperature measurement system using optical fiber sensor was applied to geothermal wells. Working availability was confirmed under the condition up to the depth of 1,750 m and the temperature of 240 centigrade. Observed values agreed well with those observed by the conventional temperature logging. Durability of the optical fiber sensor was also sufficient. The maximum standard deviations of measured values were 1.3 centigrade at the depth of 1,750 m at 195 centigrade for the loop-type sensor, and 3.7 centigrade at the depth of 365 m at about 200 centigrade for the single-end sensor. Although the accuracy was inferior to the conventional measurement using a thermo couple, it was enough to be applied to usual temperature logging. Furthermore, for this system, the temperature profile in the whole well can be monitored, simultaneously. Through the experiments, the detailed successive change of temperature profile accompanied with the water injection can be clearly illustrated. 3 refs., 7 figs.

  7. Cooling characteristics of light and heat composite panel; Hikari{center_dot}netsu fukugo paneru no rekyakutokusei

    Energy Technology Data Exchange (ETDEWEB)

    Machida, Satoshi [Science University of Tokyo, Tokyo (Japan)

    1999-07-31

    The Japan Solar Energy Soc. encouraging prize is really thank you this time receiving. Present winning prize is regarded as becoming large self-confidence and further encouragement in advancing the research in future. Duplicates and resources energy depletion problem and environmental problem, etc. will become serious more and more in respect of the twenty-first century just before. It is the threat even in the inside on the increase of the electric power demand by the popularization of air conditioner, etc., and peak shaving of the electric power, etc. must be urgently carried out. We heavily carry out the research of catching, width shot heating and cooling panel constituted by the thermo device module and light and heat composite panel which combined photovoltaic power generation panel in respect of this problem. The development of this panel was solved with the purpose this time, we produce the test equipment experimentally in outdoors, and the data was acquired. As the result, though it is possible to obtain the case in which it operated as air-cooling this panel, and temperature gradient of largest 6 degrees C, and it is the analysis, and it 4s, when it was used in July, It was possible to obtain 4.2 degrees C mean temperature difference. It is the place which has installed improved light and heat composite panel in which we suggested afterwards trial and error at present in the roof. And, it will become also reporting schedule on heating characteristics of this panel in future. Though it consists finally, everybody of Komatsu central laboratory, who received support, when this study was carried out, is asked for the slender face, the attention of thanks is shown. (translated by NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1991-11-10

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1993-07-10

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-12-31

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1994-12-20

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-12-31

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-10-31

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-12-31

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1999-10-31

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-02-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-12-31

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

  6. A Pub/Sub Message Distribution Architecture for Disruption Tolerant Networks

    Science.gov (United States)

    Carrilho, Sergio; Esaki, Hiroshi

    Access to information is taken for granted in urban areas covered by a robust communication infrastructure. Nevertheless most of the areas in the world, are not covered by such infrastructures. We propose a DTN publish and subscribe system called Hikari, which uses nodes' mobility in order to distribute messages without using a robust infrastructure. The area of Disruption/Delay Tolerant Networks (DTN) focuses on providing connectivity to locations separated by networks with disruptions and delays. The Hikari system does not use node identifiers for message forwarding thus eliminating the complexity of routing associated with many forwarding schemes in DTN. Hikari uses nodes paths' information, advertised by special nodes in the system or predicted by the system itself, for optimizing the message dissemination process. We have used the Paris subway system, due to it's complexity, to validate Hikari and to analyze it's performance. We have shown that Hikari achieves a superior deliver rate while keeping redundant messages in the system low, which is ideal when using devices with limited resources for message dissemination.

  7. FY 1998 annual report on the research and development of non-linear, opto-electronic materials; 1998 nendo hisenkei hikari denshi zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The final assessment of researches on non-linear, opto-electronic materials was conducted in FY 1988. These researches are evaluated as the world-level basic researches, high in potential of giving ripple effects on various areas. The R and D themes are organic, low-molecular-weight materials; technology for orientation-controlled crystal growth; conjugated polymer films; microcrystallite-doped glasses using vapor deposition and stuffing method; glass composite materials using sol-gel method and ultra-low melting point glass; nanoparticle-dispersed glasses using super-cooling technology; materials dispersed in organic compounds; organic superlattice formation; three-dimensionally superstructured materials; and comprehensive surveys and researches. The researches and surveys on the common basic techniques were recommissioned to Universities of Tokyo, Keio Gijuku, Nagoya, Tohoku and Hokkaido. These themes are analytical methods for non-linear optical characteristics; morphology-controlled crystal growth of nonlinear-optical organic materials and fundamental studies on all-optical devices; large enhancement of optical nonlinearity and its mechanism in nanocrystals embedded in matrices; improvement of organic materials for high performance; and ultrafast nonlinear optical processes and their application for controlling ultrafast optical pulses. (NEDO)

  8. International activities on research and production in ceramics. ; Development of overseas business-optical fiber. Kenkyu kaihatsu, seisan katsudo no kokusaika. ; Hikari faiba no kaigai seisan

    Energy Technology Data Exchange (ETDEWEB)

    Egami, K. (Corning International K.K., Tokyo (Japan))

    1994-04-01

    Researchers of the Corning Glass Works have made great contribution to the development of practical use of optical fibers. The effort of the Corning Glass Works in technological development and overseas production was introduced. Corning developed the outer vapor deposition (OVD) method suitable for large scale production. Later, the so-called vertical axial deposition (VAD) method was developed also in Japan, and a technology for quantity production of high quality optical fibers was established. The bases of the Corning's approach were respect for intellectual property and strategic market development, indicating that Corning had strategy for overseas production from the early stage (early stage of market growth) in addition to product supply strategy. Optical fiber is one of the strategic materials whose export is controlled in many countries, and the transfer of the related technology is also controlled. 1 fig.

  9. Investigational study of optical function materials for two-dimensional data processing; Nijigen joho shoriyo hikari kino zairyo ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The paper investigated/studied `space light modulation materials,` `dynamic hologram/memory materials,` `optical waveguide path materials,` etc. which become key materials in the high speed two dimensional processing. As to electrooptical materials proposed in this investigational study, the external electric field and the electric charges generated make quality of molecules themselves directly change to memory strong/weak signals of light. Therefore, the response velocity becomes less than a millionth of that of the liquid crystal display, and high speed which is needed for realtime moving image processing is anticipated. Hologram includes the phase information in addition to information on light strength. Therefore, it is a large capacity record medium and at the same time a record medium which can read/write two dimensional information as it is. With optical fiber, images cannot be transmitted as they are. Light waveguide path materials are those that accumulate roles of mirror and lens in a sheet of the material and construct a system which is strong in vibration, as optical parts connecting among materials for two dimensional data processing. 273 refs., 107 figs., 17 tabs.

  10. FY1995 ultra-high performance semiconductor lasers for advanced optical information network; 1995 nendo kodo hikari joho tsushinmo e muketa kyokugen seino handotai laser

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The purpose of this research was to study and develop ultra-high performance semiconductor light source devices that should facilitate construction of advanced optical information networks. The semiconductor devices mentioned above are enhanced and integrated versions of distributed feedback (DFB) lasers based on 'gain coupling', which the group of the research coordinator has been investigating as a pioneer in the world. This research aimed at development of ultra-high performance semiconductor lasers that surpass the first generation conventional DFB lasers in any respect, by strengthening important device characteristics for system applications of the gain-coupled DFB lasers. The achievements of this research are listed below : 1. In-situ characterization of As-P exchange in MOVPE 2. Development of 1.55 {mu}m gain-coupled DFB lasers of absorptive grating type 3. Establishment of measurement technique for gain-coupling coefficients 4. Enlargement of small signal modulation response by the absorptive grating 5. Prediction of lower analog modulation distortion 6. Characterization of reflection-induced noise 7. Proposal and Demonstration of wavelength trimming 8. Proposal and Fabrication of GC DFB laser triode (NEDO)

  11. Achievement report for fiscal 1990 on research and development of photoreactive materials; 1990 nendo hikari hanno zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    Activities were performed with an objective to establish fundamental technologies related to photoreactive materials capable of ultra-high density and high resolution indication by controlling structures and assemblies of molecules by using light. The activities were taken in the four fields of elucidation of photoreactive mechanisms and fundamental properties, development of the materials, material processing and constituting technologies, and evaluation technologies. Specifically speaking, the activities were developed on the multiplexing technology applicable to ultra-high density recording, sensitivity responsiveness, and material stability in photochromic materials and photochemical hole burning (PHB) materials. For the photochromic materials, development was performed on photochromic materials to form associations, and on a thin film forming technology by means of the organic molecular beam epitaxial process. For the PHB materials, research was implemented on use of the materials at elevated temperatures, development was made on quinone-based materials, research on enhancement of multiplexity, development on porphyrine-based materials, and research on the organizing technology. In the research of the use at elevated temperatures, development was progressed on a material that can retain under the liquefied nitrogen temperature the status of wavelength multiplexed recording that has been formed under the liquefied helium temperature. (NEDO)

  12. Photo-irradiation effects on GaAs atomic layer epitaxial growth. GaAs no genshiso epitaxial seicho ni okeru hikari reiki koka

    Energy Technology Data Exchange (ETDEWEB)

    Mashita, M.; Kawakyu, Y.; Sasaki, M.; Ishikawa, H. (Toshiba Corp., Kawasaki (Japan). Research and Development Center)

    1990-08-10

    Single atomic layer epitaxy (ALE) aims at controlling a growing film at a precision of single molecular layer. In this article, it is reported that the growth temperature range of ALE was expanded by the vertical irradiation of KrF exima laser (248 nm) onto the substrate for the ALE growth of GaAs using the metalorganic chemical vapor deposition (MOCVD) method. Thanks for the results of the above experiment, it was demonstrated that the irradiation effect was not thermal, but photochemical. In addition, this article studies the possibility of adsorption layer irradiation and surface irradiation as the photo-irradiation mechanism, and points out that coexistence of both irradiation mechanisms can be considered and, in case of exima laser, strong possibility of direct irradiation of the adsorption layer because of its high power density. Hereinafter, by using both optical growth ALE and thermal growth ALE jointly, the degree of freedom of combination of hetero ALE increases and its application to various material systems becomes possible. 16 refs., 6 figs.

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1995-12-15

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

  14. FY 1991 Report on the results of the researches on nonlinear photoelectronic materials; 1991 nendo hisenkei hikari denshi zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-03-01

    The nonlinear optics with light-light conversion and electro-optical effects are expected to be the optical materials of the next generation for their functions of, e.g., conversion of the infrared laser beams into visual light, and optical switching. The efforts are directed to development of the procedures for exploring and designing various raw materials, and technologies for synthesizing the raw materials and for producing and evaluating the materials, in order to develop highly nonlinear, high-speed responding materials. Three areas are studied; for the organic materials, the chiral nonlinear effects are demonstrated and the new procedure for determining electrical susceptibility ({gamma}) is developed; for the dispersed materials, highly nonlinear susceptibility of glass dispersed with fine particles of semiconductors, e.g., CuCl, is realized, and possibility of controlled dispersion of fine semiconductor particles in an organic polymer is established; and for development of the superlattice-based materials, the layered structures of thin organic superlattice films are studied, the thin semiconductor films of high purity and little defects are prepared, and development of the three-dimensional structures is started. The individual researches are conducted, 3 for the organic materials, 4 for the dispersed materials, and 2 for the superlattice-based materials. The targets of susceptibility and response are 10{sup -8}esu or more and 10ps or less, respectively. (NEDO)

  15. Report on investigations and studies on chemical conversion of photo-energy; Hikari energy no kagakuteki henkan ni kansuru chosa kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1984-03-01

    This paper summarizes problems in utilization of solar energy, their solutions, features, the currently achieved results, and prospects. With regard to water decomposition using semiconductors, simultaneous generation of hydrogen and oxygen has already been achieved, and there is high possibility of raising the efficiency by improving catalysts. Water decomposition using metal complexes has acceleration of charge isolation as the largest problem, whose prospect of solution is not necessarily bright at the present time. Photo-catalytic reaction is a field to be discussed as one means of developing a new synthesizing method from the viewpoint of organic synthetic chemistry. Conversion into electric energy that uses a photovoltaic process has high efficiency, and is a field to be noted. In photo-energy conversion by means of photo-synthesis, living organisms performing hydrogen production at high efficiency have been discovered. Important studies include the studies in terms of chemical engineering using these living organisms, improvement of breeds by gene manipulations, and studies that utilize living organisms or part of the constituting components. (NEDO)

  16. Development of optical interference-type micro accelerometer for subsurface microseismic measurement; Micromachining ni yoru chika danseiha keisoku no tame no hikari kanshogata kasokudo sensor no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Hirata, K; Niitsuma, H; Esashi, M [Tohoku University, Sendai (Japan). Faculty of Engineering

    1997-10-22

    Manufacture is under way of an optical interference-type micro accelerometer making use of the micromachining technology and an optical fiber measuring system for detecting microseismic waves in the ground. The sensor is required to be capable of detecting acceleration 0.1-1gal in amplitude, to be flat in amplitude characteristic in a frequency range of 10Hz-several kHz, to be ensured of straight phase characteristics to enable the measurement of transient phenomena, to be low in cross sensitivity, and to be high in resistance to water, pressure, and heat. The sensor is constructed in the following way. In the process for treating silicon, anisotropic etching is performed for the formation of a gap between the fiber end face and oscillator, boron is diffused, a stopper is formed, and then the silicon is subjected to penetrating etching. In the process for the optical fiber section, an optical fiber is inserted into a glass tube and fixed by an adhesive agent, and then the glass tube end face is polished, this together with the fiber end. Indium-tin oxide is sputtered onto the glass tube end. Finally, the sensor is assembled. 5 refs., 4 figs., 1 tab.

  17. Achievement report on research and development of medical and welfare equipment technology. Optical tomographic imaging method; Iryo fukushi kiki gijutsu kenkyu kaihatsu seika hokokusho. Hikari danso imaging system

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-11-01

    The aim is to develop a method of processing oxygen concentration distribution in human organs into an image by computed tomography using near infrared rays capable of transmitting through living tissues. Since the photoabsorption spectra of hemoglobin etc. in blood vary according to the degree of their oxidation, an oxygen concentration level is determined by measuring the magnitude of the variation. In the imaging method named in the title, the object is irradiated with picosecond-level near infrared pulses from all directions successively, the pulses after transmission through the object are measured at all directions at a picosecond-level time resolution, and the distribution of pulse scattering and absorption characteristics are subjected to algorithmic calculation, the outcome is converted into oxygen concentration levels, and an image is obtained. A 64-channel time resolution measurement system is constructed, and is applied to living tissue models (phantoms) and animals, and an image is obtained and evaluated. On the basis of the result, a patient is examined for clinical evaluation, and an image reflecting the distribution of variations in hemoglobin oxygen concentration is obtained for the head of the adult patient. A spatial resolution of 1cm is achieved in case of a phantom 10cm in diameter. In the case of 64 channels, measurement takes approximately 20 minutes and mapping image data measurement takes approximately 7 minutes. (NEDO)

  18. Achievement report on research and development in fiscal 1989. Research and development of non-linear photoelectron materials; 1989 nendo hisenkei hikari denshi zairyo no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-03-01

    With an objective to realize the communication and information processing utilizing the high velocity and parallelism of light, search for materials having non-linear susceptibility and high-speed responsiveness, and research and development of the material using technology have begun. This paper reports the achievements in fiscal 1989. In developing organic materials, investigations and preliminary experiments were performed on three-dimensional non-linear photoelectron materials of organic low molecular systems, such as chiral non-linear photoelectron material. Fundamental studies were made on growth of orientation controlled crystals. Researches were carried out on polymeric films of organic and conjugate systems. In developing the dispersed system materials, researches were executed on a technology to deposit CuCl particulates using the air phase method and porous glass impregnation method, and on evaluation of non-linear photoelectron properties of CuCl particulate dispersed glass. In addition, glass dispersed system materials were studied by using the sol-gel method, the ultra-low melting point glass method, and the ultra quenching method. Furthermore, for the organic dispersed system materials, synthesizing conditions were discussed on CdS/polymer dispersing element films, and ultra-particulate synthesizing experiments were performed. In developing the ultra-grid system materials, researches were performed on the organic ultra grid making technology and the three-dimensional ultra-structuring technology. (NEDO)

  19. FY 1991 Report on the results of the research and development of photo-reactive materials; 1991 nendo hikari hanno zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-03-01

    This project is aimed at establishment of the basic technologies for photo-reactive materials capable of, e.g., superhigh-density, superhigh-resolution display using photo-functions to control structures and associated conditions of the molecules. More concretely, the efforts are directed to realization of the technologies for multiplexing, sensitivity-response and material stability, applicable to superhigh-density recording by photochromic and photo-chemical burning (PHB) materials. For the photochromic materials, the long-chain alkyl derivatives of photochromic compounds, e.g., spiropyran and fulgide, are formed into thin films by the LB method, in order to develop organic, superhigh-density recording devices by controlling their associated conditions, and controlling of the photochromism reactions in the films is studied. Those studied for the PHB materials include improvement of heat resistance of the materials, development of quinone-based materials and improvement of their degree of multiplexing, and development of porphyrin-based materials and of technologies for structuring them. The comprehensive survey/research activities include extraction of the problems involved in the themes mainly related to the committee activities, and related technologies. (NEDO)

  20. Photocatalytic removal of nitrogen oxides from ambient air using solar energy; Taiyo energy wo riyoshita taikichu no NOx no hikari shokubai jokyo

    Energy Technology Data Exchange (ETDEWEB)

    Fukaya, M; Taoda, H; Watanabe, E; Nonami, T; Iseda, K; Kato, K [National Industrial Research Institute of Nagoya, Nagoya (Japan); Kunieda, S [NGK Insulators, Ltd., Nagoya (Japan); Kato, S

    1997-11-25

    Experiment was made on removal of NOx from ambient air using ceramic blocks coated with a newly developed easy-to- handle TiO2 film photocatalyst. After TiO2 sol was prepared by hydrolyzing titanium tetraisopropoxide, the photocatalytic blocks were prepared through drying and sintering after immersing the blocks in TiO2 sol. The effect of the number of coating on catalytic performance was studied using the single-coated and triple-coated blocks. Artificial solar light of 1mW/cm{sup 2} was used as light source for flowing reaction experiment of air (containing NOx) in a laboratory. NOx concentration rapidly decreased with irradiation, and 94% and 98% of NOx were removed by the single- and triple-coated blocks, respectively. NOx was completely oxidized to HNO3 through NO2 by triple-coated blocks. The demonstration test of removal of NOx from ambient air in Okazaki city showed a removal rate of nearly 90% in noonday and 40% or more in average, while not 0% but 5-20% even in the nighttime. The latter is probably derived from adsorption by the porous photocatalytic blocks. 2 figs., 4 tabs.

  1. Control method for light deterioration of amorphous solar cell. 2. Temperature effect method; Amorphous taiyo denchi no hikari rekka yokuseiho. 2. Ondo kokaho

    Energy Technology Data Exchange (ETDEWEB)

    Fujimoto, H; Itsumi, J; Sano, N [Kumamoto Institute of Technology, Kumamoto (Japan)

    1997-11-25

    Experimental studies have been carried out on suppressing early deterioration in amorphous silicon solar cells. The amorphous silicon solar cell is characterized by deterioration due to light irradiation and restoration due to temperature rise. An exposure experiment was performed under three conditions: installation in natural environment, installation with rear side of the solar cells covered with an insulating material, and installation with rear side of the solar cells covered with warming elements and an insulating material. Tests were made on suppressing progress of the early deterioration caused by temperature conditions. As a result, the efficiency in the natural condition was found to decrease as largely as 32% in an open circuit condition and 58% in a short circuit condition. The efficiency reduction rate was smaller in the open circuit condition when the insulation material was installed, but in the short circuit condition, resistance characteristics caused by rain water and electrolytic corrosion were exhibited. For the case with warming elements installed, the reduction in the efficiency was more remarkable, contrary to the expectation. The cause was determined that water existing between the rear side and the warming elements was warmed up, accelerating the electrolytic action, and resulting in deterioration advanced over a wide area in the rear side. 6 refs., 6 figs., 3 tabs.

  2. Chromatic regulation in cyanobacterium as studies by HPLC quantitation of photosynthetic pigments. Kogosei shikiso no HPLC teiryo ni motozuku ranso no hikari tekio process tsuiseki

    Energy Technology Data Exchange (ETDEWEB)

    Maeda, H.; Watanabe, T. (The Univ. Tokyo, Tokyo (Japan). Inst. of Industrial Science)

    1991-08-01

    Plants higher than Cyanobacterium have two kinds of resction centers(RC) which convert photon energy to a flow of electrons and whose photosensitive spectral regions are slightly deviated from each other. In the photosynthetic process, the ratio of numbers between these two kinds of reaction centers is adaptively varied so as to allow the overall flow of electrons to proceed in a well-balanced manner. It is important to rapidly and exactly determine the ratio of RC numbers between the two photochemical systems in order to investigate such photoadaptive process. The report describes the quantitative determination using high performance liquid chromatography(HPLC) for this purpose. Pigments were extracted from Cyanobacteria which are in different adaptive processes brought by being cultured in the environments differing in the quantity of light or in the environment of varying quantity of light, and subjected to quantitave determination in consideration of the fact that the reaction centers, I and II, have the respective special kinds of chlorophyl derivatives Chl-a, Chl-a{prime}. As the results, it was confirmed that validity can be given to the estimation of the numbers of reaction centers in terms of the quantities of Chl-a and Chl-a prime and the proposed method is drastically faster and simpler than the conventional methods. 14 refs., 5 figs..

  3. FY 1985-1992 summarized report on the R and D of photoreactive materials; 1985 nendo kara 1992 nendo hikari hanno zairyo kenkyu kaihatsu sokatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-12-01

    For the purpose of establishing the basement technology relating to photoreactive materials which make remarkably higher density and larger capacity of the information recording possible, the following were made for photochromic materials and PHB materials: elucidation of the photoreaction mechanism, development of materials, development of material processing/structure technology and development of evaluation technology. The target is to establish the technology of the multiplex recording which is applicable to the super-high density recording in relation to PHB materials/organic photochromic materials which have potentiality of photon-mode recording. PHB materials were developed which have potentiality of 600 wavelength multiple recording and 5 electric field multiple recording in 4.2K and 9 wavelength multiple recording in 77K. Photochromic materials were developed which have high sensitivity and preservation stability and have potentiality of 10 wavelength multiple recording at room temperature. A new photo-recording method was found out by which the orientation of liquid crystal is photo-controlled and potentiality of the multiple polarization was shown. Moreover, the fabrication was successfully made of PHB materials and photochromic materials which make non-destructive readout operation of more than 10{sup 4} times possible. (NEDO)

  4. FY1995 fundamental study of imaging simulator for diagnostics and therapeutics using light; 1995 nendo hikari wo riyosuru shindan chiryoyo gazo simulator no kiso kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Medical application of lasers is rapidly expanding in accordance with the development of laser technology. However, it is difficult to predict how light propagates and is absorbed by living bodies because of strong scattering of light by biological tissues. Therefore, the determination of light dose has been based on experience. This fundamental study aims to develop a imaging simulator which can predict propagation of light and its effectiveness in medical diagnostics and therapeutics. Teoretical models of light propagation in biological tissues have been constructed, and experiments have been conducted to validate the theoretical calculation. In the theoretical calculation, a three-dimensional model which simulates a human head with five layers of different tissue types. Numerical calculation has been done by using the finite element method to simulate the propagation of ultrashort pulse light, and it is shown by a computer graphics technique for the first time in the world. In the experiment, a solid phantom which anatomically and optically simulates a human head based on MRI images has been fabricated by using the optical prototyping technology for the first time in the world again. Also, we have compared the experimental results of the transmitted light through the solid phantoms with the theoretical results and have succeeded in reconstructing the tomographic images of optical properties. (NEDO)

  5. Control method for light deterioration of amorphous solar cell. Temperature effect method; Amorphous taiyo denchi no hikari rekka yokuseiho. Ondo kokaho

    Energy Technology Data Exchange (ETDEWEB)

    Fujimoto, H.; Yokoyama, S.; Itsumi, J. [Kumamoto Institute of Technology, Kumamoto (Japan)

    1996-10-27

    This paper describes a proposed method for suppressing light deterioration (temperature effect method), in which an annealing effect was always expected by laminating an NEM element and a heat insulation material on the back side of a-Si solar cell module and thereby raising the temperature in the back side of the module, and also describes an outdoor exposure test device completed for the method. The NEM element consisted of conductive potassium titanate and high molecular polymer and was a self temperature-controlling organic exothermic body that required no outside temperature control device. It was provided with a heat generating temperature of 45-75{degree}C as the exothermic property of the element and capable of generating heating temperature arbitrarily according to the purpose. The NEM element varied a resistance value against the ambient temperature and kept the element temperature constant. Measurement was commenced starting April 19, 1996, using the completed outdoor exposure test device and a measuring circuit. The deterioration phenomenon was and from then on continuously examined under the following conditions: (1) measurements were those of clear days only, and (2) measurements to be used were those between 10:00 and 14:00 with the quantity of solar radiation on a constant level. 4 refs., 4 figs., 1 tab.

  6. Performance analysis on borehole energy storage system including utilization of solar thermal and photovoltaic energies; Taiyonetsu hikari riyo wo fukumu borehole energy chozo system no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Saito, T [Tohoku University, Sendai (Japan); Yamaguchi, A [Matsushita Electric Co. Ltd., Osaka (Japan)

    1996-10-27

    A permanent borehole energy storage system utilizing solar energy and waste heat from coolers is simulated, to be used as an air conditioning system for super-tall buildings. A 100m-long pipe is buried vertically into the ground, and a heat medium is caused to circulate in the pipe for the exchange of heat with the soil. Thirty borehole units are used, each measuring 9m{times}9m (with the pipe pitch being 3m). Solar cells occupying half of the wall surface facing south and solar collectors installed on the roof supply electric power and heat for cooling and warming. Heat in the ground is transferred mainly by conduction but also is carried by water and gas in movement. So, an analysis is carried out using an equation in which heat and water move at the same time. Because waste heat from cooling and warming systems is accumulated in the ground and none is discharged into the air, big cities will be protected from warming (from developing heat islands). As compared with the conventional boiler-aided air conditioning system, a hybrid borehole system incorporating solar collectors and solar cells will bring about an 80% reduction in CO2 emission and annual energy consumption. 7 refs., 3 figs., 4 tabs.

  7. Optimum design of composite panel with photovoltaic-thermo module. Absorbing effect of cooling panel; Hikari netsu fukugo panel no saiteki sekkei. Reikyaku panel no kyunetsu koka

    Energy Technology Data Exchange (ETDEWEB)

    Sato, M; Kikuchi, S; Tani, T [Science University of Tokyo, Tokyo (Japan); Kadotani, K; Imaizumi, H [Komatsu Ltd., Tokyo (Japan)

    1996-10-27

    The composite panel with photovoltaic-thermo module becomes higher in energy-saving than the conventional air-conditioning system by the independent radiational heating and cooling effect obtained when the generating panel using a solar cell module is combined with the heating and cooling panel using a thermo-element module. The output of a solar cell module can be directly used because the solar cell module operates in AC. This paper reports the relation between the absorbed value and power consumption of the cooling panel, while paying attention to the cooling panel. The performance coefficient of the maximum absorbed value from an non-absorbing substance to a cooling panel is 2 to 3. Assume that the cooling panel during non-adiabatic operation is operated using a solar cell module of 800 W/m{sup 2} in solar intensity and 15% in conversion efficiency. The cooling-surface temperature difference is 12.12 K, and the maximum absorbed value of a non-absorbing substance to a cooling panel is 39.12 W/m{sup 2}. The absorbed value of the outer temperature to the cooling panel is 74.4 W/m{sup 2}, and each performance coefficient is 3.26 and 0.62. The absorbed value must be calculated for evaluation from the cooling-surface temperature difference measured directly from the cooling panel. 4 refs., 8 figs., 1 tab.

  8. 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.

  9. Method of measurement of near tip field of fast propagating cracks by means of interferometry; Hikari kansho ni yoru kosoku shinten kiretsu sentanbu no oryokuba keisokuho

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, s.; Miyazaki, F. [Toyohashi University of Technology, Aichi (Japan); Nakane, K. [Nitto Denko Corp., Osaka (Japan)

    1994-12-15

    The measurement by an interference method at the tip of fast propagating cracks was investigated. To clarify the direction-dependent problem of dynamic cracks in a higher-order term, a high-precision stress field must be measured in every direction. In this method, the propagated interference fringes near the crack tip are shot at a speed of some hundreds of m/sec, and the coefficient of dynamic stress extension is obtained from the expression given when the number of fringes (`m`) in the interferences fringes is differentiated partially. The information below was obtained. The stress field in every direction can be analyzed by the interference method. However, the interference fringes in an area of absolute {theta} < 120{degree} are radially spread from the crack tip, so the precision of the interference fringes in the {gamma} direction deteriorates. In this area, the above partial differential is higher in precision when {alpha}m/{alpha}{theta} is used instead of {alpha}m/{alpha}{gamma}. The stress extension coefficient obtained by a caustic method can be verified if a stress field of {theta} = {plus_minus}72{degree} is analyzed by the interference method. By shooting in this optical system, the COD measurement, the K-value measurement of caustic light, and the stress field measurement by an interference method can be done simultaneously. 17 refs., 11 figs.

  10. Development of metal complexes which has a novel type of dhotocatalysis activity; Shinki hikari shokubai tokusei wo yusuru kinzoku sakutai no sousei

    Energy Technology Data Exchange (ETDEWEB)

    Ishitani, Osamu [Saitama University, Saitama (Japan). Graduate School of Sceince and Engineering

    1999-12-16

    Purpose of this research are (1) development of photocatalysts which selectively drive hydride transfer and (2) their application to the enantioselective reduction of an unsaturated substrate. photocatalysis of [Ru(bpy){sub 2}(py){sub 2}]{sup 2+} (1) and [Ru(tpy)(bpy)(py)]{sup 2+} (2) (bpy=2,2'-bipyridine, tpy=2,2' : 6',2' '-terpyridine, py=pyridine) for reduction of unsaturated compounds was investigated using triethylamine as a reductant. Formation of the hydrogenated compounds was observed but the corresponding one electron reduced compounds were not detected at all. The complex 1 photocatalysed the reduction of trifluoroacetophenone (5) and gave the alcohol in a 67% yield but 2 gave only a 27% yield. The reaction proceeds via the photosubstitution of a py ligand of the ruthenium complex, followed by photochemical formation of the hydride complex. The ruthenium hydride complex reacts with 5 to give [Ru(tpy)(bpy)(OCHPhCF{sub 3})]{sup +} (4). Dissociation of 4 to the alcohol was not efficient and the yield was 10%. (author)

  11. Optical fiber taste sensors using potential sensitive dye coatings. Makuden'i kanjusei shikisomaku wo mochiita hikari fiber mikaku sensor

    Energy Technology Data Exchange (ETDEWEB)

    Yamakawa, S.; Yamaguchi, A. (Toyama National College of Maritime Technology, Toyama (Japan))

    1992-12-20

    The present paper proposes a new taste recognition system using optical response patterns from multi-channel optical fiber sensors having potential sensitive dye coatings. It was found that the sensors give large changes in optical absorption spectra of the dyes when they are immersed in various taste solutions. Consequently, it was shown that the sensors can be used as a taste sensor. Six dyes, which give large changes in dye absorption, were selected from twenty dyes and used for six-channel optical fiber taste sensors array. The absorption spectra change data were processed by multiple discriminant analysis and neural networks using back-propagation algorithm. From the analytical results, it was demonstrated that salty (NaCl), bitter (quinidine), sweet (sucrose), sour (HCl), and umami (sodium glutamate) substances can be recognized from each other by using the optical taste sensor system. 11 refs., 8 figs., 2 tabs.

  12. Report on achievements in fiscal 1988 on research and development of the photoreactive materials under the next generation basic technology research and development project. Comprehensive surveys and researches on photoreactive materials; 1988 nendo hikari hanno zairyo no kenkyu kaihatsu seika hokokuksho. Hikari hanno zairyo sogo chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    This paper describes the achievements in fiscal 1988 on comprehensive surveys on photoreractive materials. Based on the research and development institution for the next generation basic technology under the initiative of the Agency of Industrial Science and Technology, development is being promoted on photoreactive materials, or photochromic materials and photochemical hole burning (PHB) materials (materials in which molecular structures and assembly state can be changed reversely by actions of light, leading to expectation of application thereof to ultra-high density recording, displays at high resolution, and light switches). In order to achieve smooth and efficient promotion of the development thereof, development of the related technologies inside and outside the country was surveyed and discussed. Comprehensive surveys and researches were also carried out on the common basic technologies by looking to the well-informed people for guidance on the research. This fiscal year has held joint committee meetings to which lecturers were invited to discuss respective problems in the research and development trends. In addition, as the domestic survey, the status of research and development at the Tsukuba University was surveyed on photo-responsive polymeric gels. Furthermore, as the survey on the overseas technological trends, information related to photoreactive materials was collected mainly on photochemical burning materials in the U.S.A., and the research trends were surveyed. (NEDO)

  13. FY 1989 report on the results of the next generation industrial basement technology R and D project - R and D of photo-reactive materials. Comprehensive investigational research on photo-reactive materials; 1989 nendo hikari hanno zairyo no kenkyu kaihatsu seika hokokusho. Hikari hanno zairyo sogo chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-03-01

    As to photochromic materials and photochemical hole burning (PHB) materials, for the purpose of smoothly/efficiently promoting the R and D, the common basic technology was comprehensively surveyed as well as survey/study of the related technology development in Japan and abroad. In FY 1889, a joint committee was held, and a meeting was held of lectures given by lecturers from outside on the following: reversible response LB multilayered film and 2D optical switching element, photochemical HB and solid polymer, photovoltaic excitation dynamics of polymer solid, wavelength variable/semiconducting laser, optical memory, etc. A meeting for study/discussion on the details was also held. Items for the meeting were as follows: optical orientation control of nematic liquid crystal by photochromic surface, design of photochromic molecules, molecular movement and photo-reactivity in molecular aggregation system matrices, PHB spectra and mesoscopic structure control, continuous HB using semiconducting laser and sub-picosecond photon echo, quinone system derivative PHB in polymer matrices, etc. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-11-25

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1995-03-15

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1998-06-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-20

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1999-02-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1991-05-10

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-10-08

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1993-12-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1995-09-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-04-10

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-04-10

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1994-10-25

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1998-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1995-04-20

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1991-07-20

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

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

    Energy Technology Data Exchange (ETDEWEB)

    Kusunoki, Ken' ichiro; Suzuki, Koichi

    1988-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-10-27

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1991-10-31

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

  20. Direct-semidirect (DSD) codes

    International Nuclear Information System (INIS)

    Cvelbar, F.

    1999-01-01

    Recent codes for direct-semidirect (DSD) model calculations in the form of answers to a detailed questionnaire are reviewed. These codes include those embodying the classical DSD approach covering only the transitions to the bound states (RAF, HIKARI, and those of the Bologna group), as well as the code CUPIDO++ that also treats transitions to unbound states. (author)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    Oba, E.

    2000-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

  7. Fiscal 1992 R and D project for next generation infrastructure technology. Report on results of R and D on photo-reactive material; 1992 nendo hikari hanno zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    R and D was conducted with the purpose of establishing fundamental technologies concerning photo-reactive materials, which control molecular structures or polymerization through light beam behavior and which can be used for ultra-high density optical recording, high resolution display, optical switch, etc., with the fiscal 1992 results summarized. In the studies on photochromic materials, investigation was carried out on the possibility of 10 multiple recording and the fundamental features of aggregate forming photochromic compounds. In the studies on high temperature of photochemical hole burning (PHB) materials, a material was synthesized using ionic porphyrin derivatives as guest material and deuterated polyvinyl alcohol (PVA) and the like as host, with the evaluation made on the performance of multiple hole formation and storage. In addition, comparisons were made for example on the thermal properties of the PHB materials among the participating enterprises mutually. In the development of chinone PHB materials and research on the improvement of the multiplicity, as this being the final year, researches were done on such subjects as integration of element technologies, material evaluation technology and PHB-related studies, correlatively as the work of the final year. Research results were also reported on the development and systematizing technology of porphyrin-based PHB materials. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1993-11-10

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

  9. Leading research report for fiscal 1998 on the research on photofunctional materials for processing 2-dimensional data; 1998 nendo nijigen joho shoriyo hikari kino zairyo ni kansuru chosa kenkyu sendo kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Researches are conducted for the development of photofunctional materials, which will enable the utilization of such features of light as high speed, planar transmission, and space coupling, for the real-time processing of large-volume 2-dimensional image data etc. The researches cover the 'spatial light modulation material' and 'dynamic holographic memory material' which will be the key materials in the high-speed 2-dimensional data processing, and the 'optical waveguide material.' The 'spatial light modulation material' is a material that temporarily memorizes optical data for causing interference between images by use of light, the 'dynamic holographic memory material' is a material that memorizes phasal data of light and records and writes by use of light the large-volume data necessary for moving picture processing, and the 'optical waveguide material' is a material that transmits multi-dimensional picture data on the real-time basis. Researches are also conducted on the status of research and development of technologies involving novel photofunctional materials, the control of the structure of their electrode/molecule boundary, the creation of ultrastructural materials by molecular arrangement control, etc. (NEDO)

  10. FY1995 study of electronic coservice project which used Optical-Smart Hybrid Card; 1995 nendo hikari IC hybrid card wo mochiite katei kara ukeru gyosei denshika service project

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    As one of advanced multi media service, We can think about electoronization-network changing of the public coservice. that the official system provides. It can be expected to improve the life environment for a nation by the electronization. The purpose of this research is to clarify the off-line administration of an individual information and the issue on security. We constructed the experimental system using the Internet and Optical-IC hybrid card that an individual information is administrated. The system provides the following services. (1) On-stop moving service (2) Electronic certificate publishing service (3) Electronic ticket publishing service We have mounted client terminals at Fuchu city hall, Yokohama city hall, and Keio University, and made field experimentation. (NEDO)

  11. Fiscal 2000 survey report. Research on laser-aided photolysis of environmental pollutant in liquid phase system; 2000 nendo ekisokei ni okeru kankyo osen busshitsu no laser hikari bunkai gijutsu ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Experiments were conducted on laser-aided decomposition and removal of chemical substances in liquid phase systems on the assumption that there existed chemical pollutants in wastewater or water after washing burned ash. The aim of the research was to split carbon-chlorine bonds and break benzene rings, the two being the cause of harmfulness, and experiments were conducted using chlorophenol. The photolytic lasers were ArF excimer laser and KrF excimer laser. It was found that the reduction rate of chlorophenol in a water solution under excimer laser irradiation was 1.7 times higher under KrF laser than under ArF laser. For mediums other than water, isopropanol was used, more convenient than chlorophenol in separating organic pollutants from burned ash and the like. In this case, organochlorine compounds were generated at the beginning, but they disappeared when irradiation was prolonged. It was demonstrated that the laser-aided environmental cleaning technology would find a very wide scope of application as an effective photolytic means. (NEDO)

  12. Fiscal 1998 R and D report on femtosecond technology (ultra-short pulse optoelectronics technology); 1998 nendo femuto byo technology no kenkyu kaihatsu (chotan pulse hikari electronics gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This report reports the result of the fiscal 1998 R and D on femtosecond technology supported by NEDO. For creation of industrial basic technologies supporting the advanced information society in the 21st century, ultra-high speed electronics technology including new functions beyond the speed limit of conventional electronics technologies is indispensable. From such viewpoint, this R and D aims at establishment of the basic technology necessary for ultra- high speed electronics technology through R and D of technology controlling conditions of beams and electrons in a femtosecond (10{sup -15}-10{sup -12} seconds) region. In fiscal 1998, this project first succeeded in fabrication of a prototype pulse compressor by using semiconductors, and developed a new pulse compressing method by using fibers to generate ultra-short pulse of 38fs. By developing new materials for intersubband transition where ultra-high speed responses can be expected, optical absorption by intersubband transition was first confirmed at optical communication wavelength. The main result for every theme is reported and explained. (NEDO)

  13. FY 1993 Report on the industrial science and technology research and development project results. Research and development of non-linear photoelectronic materials; 1993 nendo hisenkei hikari denshi zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-11-01

    Described herein are the results of the industrial science and technology research and development project for nonlinear optoelectronic materials. The more functional chiral and pi-conjugated compounds are investigated as the organic, low-molecular-weight materials. The technologies for the orientation-controlled crystal growth are continuously investigated. Polyacetylene is investigated as the conjugated pi-electron system. The glass-dispersed systems, prepared by the sol-gel, superlow-melting glass and super-cooling methods, are investigated. In order to elucidate the relationship between the organic superlattice and properties (e.g., photoelectronic properties), the intramolecular interactions under the superlattice conditions are estimated by the theoretical chemical calculations, and the optimum structures deduced from the measured properties are proposed. The thin, composite films of fine metallic particles and glass are prepared by the multi-dimensional sputtering, to explore the constituent materials suitable for the three-dimensional superstructures, and their properties are analyzed. The thin semiconductor films of superlattices are prepared by the molecular beam epitaxy method, to investigate the optimization of the structures and compositions. The basic aspects of the three-dimensional superstructures, prepared by the superfine machining, are investigated. The results of the comprehensive investigations and researches are also described. (NEDO)

  14. FY 2000 report on the results of the R and D of femtosecond technology. Development of the ultra-short pulse optoelectronic technology; 2000 nendo femto byo technology no kenkyu kaihatsu seika hokokusho. Chotan pulse hikari electronics gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    This project aims at creating new industrial basement technology which supports the highly information-oriented society in the 21st century, conducts the R and D of technology to control the state of light and electron in the femtosecond time domain (10{sup -15} - 10{sup -12} sec), and establishes the basement technology which exceeds the speed limit of the conventional electronics technology and also includes new functionality. Especially, it aims at establishing the basement technology of the ultra-high speed optoelectronics which are absolutely necessary for construction of the Tb/s class ultra-high speed/large capacity information communication infrastructure. The results obtained in this fiscal year were as follows: successful transmission of 144km of 600fs optical pulse, successful experiment of 4-chain pulse DEMUX equivalent to 1Tb/s by ultra-high speed intersubband transition optical switch of Sb-base material combination quantum well, realization of 2-bit coding/decoding in the spectral region, realization of serial-parallel conversion motion of optical pulse equivalent to 1Tb/s using squarylium J aggregate thin films, realization of subpico second optical pulse 20nm wavelength conversion by DFB laser structure, etc. (NEDO)

  15. Fiscal 1975 Sunshine Project research report. Research on hydrogen production technology mainly by photo- semiconductor; 1975 nendo hikari handotai wo shutai to suru suiso seizo gijutsu no kenkyu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1976-05-28

    In fiscal 1975, to study the possibility of photochemical decomposition as new hydrogen production technique based on the research result in the preceding fiscal year, study was made on some materials useful as electrode for photocells among various semiconducting materials with large solar photo-electromotive force. Study was made on the kind and combination of electrode materials, and electrolyte composition for photocells through measurement of photocell characteristics by various combinations of semiconductor electrodes. As for the impact of light sources, study was made on the photosensitization phenomenon by xenon light, solar light and xenon lights with various spectral profiles through specific filters, and the relation between a light intensity and hydrogen efficiency. As useful semiconductor photocell electrode systems, combinations of n-type GaP or n- type GaAs and p-type GaP or p-type GaAs were most efficient. As preventive technique of semiconductor electrodes from dissolution, coating technique of various materials showed insufficient results. (NEDO)

  16. Pressure dependence of emission intensity of rare-gas excimer light produced by silent discharge; Teikiatsu ryoiki ni okeru musei hoden reiki ki gas excimer hikari shutsuryoku no atsuryoku izonsei

    Energy Technology Data Exchange (ETDEWEB)

    Yoshida, Y.; Tanaka, M.; Yukimura, K. [Doshisha University, Kyoto (Japan)

    1996-09-20

    To establish the pressure dependence of silent discharge excited rare gas excimer light emission, a vacua ultraviolet light was subjected to spectroscopic analysis at a pressure lower than 20kPa. Researches are under way to apply the discharge excited rare gas excimer lamp as a vacuum ultraviolet light source for the development of new materials and for the conservation of environments. When the pressure is as low as 1.8kPa or 4.4kPa, the emission has peaks at wavelengths centering on 147nm and 149nm, both of which are the resonance lines of the xenon atom. Excimer generation becomes prominent as the pressure increases, with the second continuum of light growing dominant at 35kPa to weaken relatively the resonance lines and the first continuum of light. In the first continuum, emission increases only at a suppressed rate, as compared with emission in the second continuum, due for instance to a collision caused relaxation process in which excimers are lost. In the case of xenon in the vicinity of 10-11kPa, the first continuum of light and the second continuum of light are approximately equal in emission intensity, producing a vacuum ultraviolet light source with a bandwidth relatively large for a single gas spectrum. 14 refs., 11 figs.

  17. Low temperature formation of ferroelectric PbTiO3 films by laser ablation with 2nd laser irradiation; Reiki hikari laser heiyo laser ablation ho ni yoru kyoyudentai PbTiO3 usumaku no teion keisei

    Energy Technology Data Exchange (ETDEWEB)

    Tabata, H.; Kawai, T. [Osaka University, Osaka (Japan)

    1997-08-20

    The unique advantage of the pulsed laser deposition is its ability to produce highly oriented stoichiometric films at a low substrate temperature. Ferroelectric PbTiO3 thin films have been formed using 2nd laser assisted laser ablaion technique at low temperature, i.e., 350degC, on Sr7iO3 single-crystal substrates and Pt/MgO electrodes. The second laser irradiation at the substrate surface is quite effective for crystallization of the films at low substrate temperature below 400degC. The suitable energy density (fluence) of the irradiation laser is in the range of 30-100 mJ/cm{sup 2}. X-ray diffraction patterns of PbTiO3 thin films show c-axis orientation, with a rocking angle of 1.0 - 0.5deg. These films exhibit ferroelectric hysteresis loop. The dielectric constant and remanent polalyzation of the PbTiO3 films are in the range of 120-150 and 60-80 {mu}C/cm{sup 2}, respectively. 31 refs., 10 figs., 1 tab.

  18. Collection of outlines of Sunshine Program achievement reports for fiscal 1988. Solar energy (Light utilizing technology and heat utilizing technology); 1988 nendo sunshine keikaku seika hokokusho gaiyoshu. Taiyo energy (hikari riyo gijutsu / netsu riyo gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-04-01

    Collected concerning the research and development of photovoltaic power systems are the basic research on solar cells; research and development of new-type photovoltaic power systems; and research and development of amorphous solar cells. Collected concerning the development of technologies for the practical application of photovoltaic power systems are the experiment, refining, and verification of low-cost silicon; experiment, fabrication, and verification of solar panels; research on the practical application of high-efficiency crystal-based solar cells; research and development of amorphous solar cells; research and development of solar cell evaluation systems; development of peripheral technologies; research and development of photovoltaic power-aided systems; research and development of centralized photovoltaic power systems; and development of photothermal hybrid type photovoltaic power systems. Collected concerning heat-utilizing technologies are the research and development of solar thermal electric power generation systems; research and development of solar air-conditioners and hot water supply systems; and development of practical application technologies for industrial solar systems. Collected also are international cooperative projects on solar energy technologies. (NEDO)

  19. Collection of outlines of Sunshine Program achievement reports for fiscal 1989. Solar energy (Light utilizing technology and heat utilizing technology); 1989 nendo sunshine keikaku seika hokokusho gaiyoshu. Taiyo energy (hikari riyo gijutsu / netsu riyo gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-04-01

    Collected concerning the research and development of photovoltaic power systems are the basic research on solar cells; research and development of new-type photovoltaic power systems; and research and development of amorphous solar cells. Collected concerning the development of technologies for the practical application of photovoltaic power systems are the research on the practical application of new-type solar cells; research on the practical application of amorphous solar cells; research and development of solar cell evaluation systems; research and development of peripheral technologies; research and development of photovoltaic power-aided systems; research and development of centralized photovoltaic power systems; and research and development of photothermal hybrid photovoltaic power systems. Collected concerning heat application technologies are the research and development of solar thermal energy systems; development of practical application technologies for solar systems for industrial use etc.; and cooperative projects between Japan and Australia etc. on solar energy technologies. (NEDO)

  20. FY 1999 report on the results of the R and D of femtosecond technology. Development of ultra-short pulse optoelectronics technology; 1999 nendo femutobyo technology no kenkyu kaihatsu seika hokokusho. Chotan pulse hikari electronics gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The paper described the FY 1999 results of the R and D of femtosecond technology. For the purpose of creating new industrial basement technology which supports the highly information-oriented society in the 21st century, the ultra-high speed electronics technology is indispensable which is beyond speed limits of the existing electronics technology and has new functionality. The ultra-high speed electronics basement technology is established through the R and D of the technology to control the state of light and electronics in the femtosecond time domain (10{sup -15} - 10{sup -12} second). Themes of the R and D are technology to generate/transmit femtosecond optical pulse, technology for control/distribution, and ultra-short pulse optoelectronics common basement technology. In FY 1999, a lot of results were obtained in the following: generation of the pulse train highly repeated at 500GHz in semiconductor laser; 139km transmission of 250fs optical pulse; switching movement at ultra-high speed of 150fs-1.2ps in transition among subbands of GaN base and Sb base materials; DEMUXA movement toward 160-10Gb/s in Mach-Zehnder type optical switch. (NEDO)

  1. 55th electric science promotion prize (progress prize). Demonstration of optical soliton transmission on OPGW first in the world; Dai 55 kai denki gakujutsu shinkosho (shinposho) jusho. Seiaihatsu no OPGW ni okeru hikari soriton denso no jissho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-06-10

    Electric science promotion prize (progress prize) is given to `Person who newly proposed a new concept, theory, material, device, system and method on electrical science and technology, or demonstrated these proposals` by the commendation committee of Institute of Electrical Engineers of Japan every year. Eight promotion prizes including that for Kansai Electric Power`s `Demonstration of optical soliton transmission on OPGW first in the world` were given. This research succeeded in development of the transmission/ receiving device suitable for optical soliton transmission, and the prediction method of an optimum transmission condition by computer simulation. In addition, this research succeeded in 10Gbit transmission of 784km and 40Gbit transmission (4-wave multiplex) of 392km by applying the above research result to Okurobe trunk line OPGW (98.2km). This demonstration of optical soliton transmission on OPGW is first in the world. (NEDO)

  2. 1998 Annual Study Report. Standardization for securing interoperability between optical disk systems; 1998 nendo seika hokokusho. Hikari disk system no sogo un'yosei kakuho no tame no hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This R and D program is aimed at securing interoperability between optical disk systems, based on the logical formats, to propose the draft international standards. For the volume/file structures proposed by ISO/IEC 13346, the universal disk format (UDF) proposed by the Optical Storage Technology Association (OSTA) is taken as the target file system, to improve the conformance test environments and develop the standards for advanced interoperability. The 1998 R and D themes include development of the UDF conformance testing tools for avoiding the interoperability-related problems involved in the UDF, which are actually observed, and investigations on the UAF specifications and preparation of the UAF-related standard evaluation systems for preparation of the draft standards for the Universal Accessible Filesystem (UAF), planned to be conducted in and after the next fiscal year, which allows, e.g., network seamless application of a variety of the future optical disks. (NEDO)

  3. FY 1992 Report on the results of the research and development project for the industrial base technologies of the next generation. Research and development of nonlinear optoelectronic materials; 1992 nendo hisenkei hikari denshi zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    Described herein are the FY 1992 results of the research and development project for the optoelectronic materials. The FY 1992 is the last year for the phase-I project of the basic plan, and the results are evaluated mainly viewed from extent of attainment of the interim targets. For the organic materials, the highly unique chiral nonlinear compounds are further developed, and direction for the investigations of the conjugated low-molecular-weight compounds is established. The excellent high-molecular-weight films are developed. For the dispersed materials, those developed include CuCl-dispersed glass, CdTe laminated glass developed by the laser evaporation method, glass dispersed with semiconductors at high concentrations, and dispersed materials with high-molecular-weight materials as the matrices. For the material development, those technologies investigated are orientation controlling of the crystals for thin organic films, and development of superlattices. A total of 9 research themes are recommissioned to 9 enterprises. They include organic, low-molecular-weight materials, growth of orientation-controlled crystals, films of high-molecular-weight organic conjugated compounds, glass-dispersed materials (prepared by the vapor-phase, impregnation of porous glass, sol-gel, superlow-melting glass and super-cooling methods), organic dispersed materials, development of the organic superlattices, and development of the three-dimensional superstructures. (NEDO)

  4. FY 1990 Report on the results of the research and development project for the industrial base technologies of the next generation. Research and development of nonlinear optoelectronic materials; 1990 nendo hisenkei hikari denshi zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    Described herein are the FY 1990 results of the research and development project for the optoelectronic materials, implemented to cope with the highly information-oriented societies. The FY 1990 is the second year for the phase-I project of the basic plan, and the R and D efforts are directed to elucidation of the mechanisms involved in the nonlinear phenomena, exploration and designs of various materials, and investigations of the technologies for, e.g., the material synthesis and evaluation. The themes to be investigated by the long-term project include exploration and preparation of the superfine particles and base materials for the organic materials; and crystal growth, dispersion of the fine particles and development of the superlattices for development of the materials. The comprehensive investigation and research program investigates the trends of the related technologies, both domestic and foreign. A total of 9 research themes are recommissioned to 9 enterprises. They include organic, low-molecular-weight materials, growth of orientation-controlled crystals, films of high-molecular-weight organic conjugated compounds, glass-dispersed materials (prepared by the vapor-phase, impregnation of porous glass, sol-gel, superlow-melting glass and super-cooling methods), organic dispersed materials, development of the organic superlattices, and development of the three-dimensional superstructures. (NEDO)

  5. Dependence of leaf surface potential response of a plant (Ficus Elastica) to light irradiation on room temperature; Shokubutsu (gomunoki) hamen den`i no hikari shosha oto no shitsuon izonsei

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-11-25

    In order to clarify plant body potential information, study was made on a leaf surface potential response to light irradiation. The leaf surface potential change, total transpiration and transpiration rate of Ficus Elastica were measured using light irradiation period and room temperature as parameters. The leaf surface potential change shows a positive peak after the start of light irradiation, while a negative peak after its end. Arrival time to both peaks is constant regardless of the light irradiation period, while decrease with an increase in room temperature. Although the total transpiration increases with room temperature, this tendency disappears with an increase in light irradiation period. The transpiration rate shows its peak after the start of light irradiation. Arrival time to the peak is saturated with the light irradiation period of 60min, while decreases with an increase in room temperature. These results suggest that opening of stomata becomes active with an increase in room temperature, and the peak of the leaf surface potential after the start of light irradiation relates to the opening. 3 refs., 11 figs.

  6. Calculation of heat balance considering the reflection, refraction of incident ray and salt diffusion on solar pad; Hikari no hansha kussetsu oyobi shio no kakusan wo koryoshita solar pond no netsukeisan

    Energy Technology Data Exchange (ETDEWEB)

    Kanayama, K; Li, X; Baba, H; Endo, N [Kitami Institute of Technology, (Japan)

    1997-11-25

    In calculating heat balance of solar pond, calculation was made considering things except quality of the incident ray and physical properties of pond water which were conventionally considered. The real optical path length was determined from the reflection ratio of ray on the water surface based on the refraction ratio of pond water and the locus of water transmitted ray in order to calculate a total transmission rate. The rate of absorption of monochromatic lights composing of solar light in their going through the media is different by wavelength, and therefore, calculation was made in each monochromatic light. As to four kinds of salt water solution, NaCl, KCl, MgCl2 and CaCl2, these phenomena seen in solar pond are taken in, and a total transmission rate based on reality can be calculated by the wavelength integration method. Moreover, in the salt gradient layer, there are gradients in both concentration and temperature, and thermal physical values of each layer change. Accordingly, mass transfer and thermal transfer by both gradients were considered at the same time. An analytic solution was introduced which analyzes salt diffusion in the temperature field in the gradient layer and determines the concentration distribution. By these, concentration and physical values of each layer were calculated according to phenomena, and thermal balance of each layer of the solar pond was able to be accurately calculated. 6 refs., 5 figs., 2 tabs.

  7. Report on the achievements in fiscal 1999 of research and development of fusion zones. Volume 1. Next generation light beam foundation technology; 1999 nendo yugo ryoiki kenkyu kaihatsu seika hokokusho. 1. Jisedai hikari kiban gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    With an objective to develop a high-speed high-density light beam recording technology by application of proximity field light, researches were performed on a flat opening type proximity field head, a recording and replaying system for the super lens, the materials thereof, proximity field optical elements, and the application to lithography. As a result of the researches, development was made on a promising light scattering super lens, whose noise level is low and the carrier is stable. Deterioration of the replay signals in association with repeated read-out is caused by instability of the recording film. It was verified, however, that more than 60,000 read-outs are possible by adding oxygen into the recording film material to raise the crystallization temperature. Application of the super lens to organic thin film recording utilizing thermo-chromism was verified to be effective. In discussing the application of the super lens to lithography, a possibility was confirmed to expose a resist film through the super lens structure. A simulation program for the proximity field light was developed, and new findings were acquired. (NEDO)

  8. Report on results 1998. Research and development on fusion area. Part 1 (next generation optical substrate technology); 1998 nendo seika hokokusho. Yugo ryoiki kenkyu kaihatsu daiichi bunsatsu (jisedai hikari kiban gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Emphasis was placed on the research on a planar apertured near-field head and a super-RENS (super-resolution near-field structure) method, as a near-field application element for replacing protruding probes, which has a number of difficult points in developing near-field recording into a practical system, and as a recording and reproducing method. The super-RENS method, as a result of the examination, has become capable of recording/detecting a mark of the minimum 60nm diameter, by the near-field, under conditions such as the most advanced optical disk size and the number of revolution of the disk. This means that a high density recording is possible which is at least 40 times as dense as a DVD (digital versatile disk). It was confirmed by an experiment that the high density was possible in the track pitch direction by the super-RENS method. As a result of the examination on the behavior of the near-field in the super-RENS disk, it revealed that signal detection by the transmitted light which had not been tried before was effective for the improvement of the performance. The smallest detectable mark size was 80nm, in which case CNR (carrier to noise ratio) was 6.4dB. These values are approximately the same level as in the signal detection by reflected light, and are insufficient to verify the superiority. (NEDO)

  9. FY 1997 research and development of fusion domains. Part 3. Studies on next generation optical substrate technologies; 1997 nendo seika hokokusho (yugo ryoiki kenkyu kaihatsu). 3. Jisedai hikari kiban gijutsu no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    With an objective of realizing super large capacity recording technologies largely exceeding the current limits of optical recording and magnetic recording, studies were conducted on application of near-field optics. In the study on recording by using near-field light, it was verified that a mark with approximately the same size as an aperture diameter can be formed on a phase change recording film when a fiber probe with an aperture diameter of about 200 nm is used. However, it was found that the recording using this system takes excessive amount of time. When laser light collected on an objective lens was irradiated pulse-wise, a mark with a minimum width of about 20 nm was observed with high contrast. This will mean that a record with recording density of one terabit/in {sup 2} can be read out. Other studies performed include those on evaluation of effects of polarized light and surface shape on near-field read-out, simulation, mechanism of crystallization in a phase change recording film, recording and playback with ultra-high resolution by using a conformable near-field aperture, fabrication of a flat aperture type near-field light probe array, and the evaluation thereon. 22 refs., 27 figs.

  10. Research and development of basic technologies for the next generation industries, 'light-reactive materials'. Evaluation on the second term research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'hikari hanno zairyo'. Dainiki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    Research and evaluation was performed with an objective of establishing the basic technology related to light-reactive materials that control the structures and status of aggregation of molecules by using actions of light, and can be used for ultra-high density recording, high resolution indication and light switches. In elucidating the basic characteristics of photochromic materials, a non-destructively readable recording system was proposed and demonstrated, highly durable and high-functional photochromic compounds were developed, and a number of material design guidelines were accumulated to realize characteristics required in light-beam recording. With regard to development of the photochromic materials, realization of photochromic thin films that can record wavelengths in multiplex manner has become more realistic. For elucidating basic characteristics of PHB materials, a method for evaluation from a number of directions including the time method for photon echo was established in addition to the conventional frequency recording characteristics. Regarding the elucidation of the PHB phenomenon, demonstration was carried out on intermediate zone structure control in diversified material systems including living organism substances, where a large number of findings were accumulated. (NEDO)

  11. Research and development of basic technologies for the next generation industries, 'light-reactive materials'. Evaluation on the first term research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'hikari hanno zairyo'. Daiikki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-03-01

    Research, development and evaluation were performed with an objective of establishing the basic technology related to light-reactive materials that control the structures and status of aggregation of molecules by using actions of light, and can be used for ultra-high density recording, high resolution indication and light switches. In elucidating the mechanism of light deterioration reaction of photochromic molecules, it was disclosed that 6-nitrospirobenzopyran has the light deterioration caused from the excitation triplet state. This disclosure presents a possibility of preventing the light deterioration. New derivatives that show photochromism were synthesized, and thin films were produced by using the LB process. This indicates a possibility of producing the photochromic materials as the high multiplex recording material. With regard to PHB materials, an evaluation technology having spectrum resolution of the world's highest level was established and measurements were performed. Hole formation was verified for the first time in the world at the temperature higher than the liquid nitrogen temperature by using a PHB material of ionic porphin/polyvinyl alcohol systems. This verification indicates a feasibility of practically usable PHB materials. (NEDO)

  12. Kickoff into the future - Community full of light and balmy wind, Naraha. Regional new energy vision for Naraha Town; 2001 nendo Naraha machi chiiki shin energy vision. Mirai he no kick off - Hikari to kaze no machi Naraha

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-02-01

    For promoting the introduction of new energy and for enhancing people's consciousness of such at Naraha Town, Fukushima Prefecture, surveys and studies were conducted involving the trend of energy consumption of the town, the amount of new energy resources in existence, and new energy introduction projects, and a vision was formulated. The annual energy consumption of the town is 1,134,300 GJ, with industries consuming 41%, transportation 36%, households 12%, and commerce 11%. The energy comprised 76% from oil based fuels and 24% from electric power. Some new energy introduction projects were discussed, which covered the exhibition, public relations activities, and education through the use of wind power generation and photovoltaic power generation or solar heat utilization for Tenjin Point Sports Park, natural park surrounding the Kidogawa dam, on-the-road station Naraha Michinoeki, solar cars, and hybrid type street lamps; photovoltaic power generation, solar heat utilization, and clean energy vehicles for a special nursing home for elderly people, nursery schools, kindergartens, and a processing center for agriculture, forestry, and fishery products; and disseminating and enlightening activities conducted for people in general and business operators. (NEDO)

  13. Fiscal 1999 research result report. Research on improvement of boiling heat transfer characteristics by photocatalyst wall; 1999 nendo hikari shokubai hekimen ni yoru futto netsu dentatsu tokusei kaizen ni kansuru kenkyu chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Research was made on improvement of the wettability and boiling heat transfer characteristics of a photocatalyst wall. Measurement experiment of the wettability was made for anatase type titan oxide-coated Al, SUS and Pb plates, rutil type titan oxide-flame coated SUS plate, raw plate, and oxide-plasma coated titan plate. In the ground experiment, the contact angles of distilled water and oil on specimen surfaces were measured. In the microgravity experiment, falling droplet images were recorded by using the facility of Japan Microgravity Center (JAMIC). For obtaining the effect of radioactive emission, UV irradiation, {gamma} ray and neutron beam irradiation by nuclear reactor, and {gamma} ray irradiation by Co-60 were carried out. As the experiment result, the rutil type titan oxide-flame coated SUS plate, nonconductor-coated titan plate, and zircaloy plate showed large improvement of the wettability by {gamma} ray irradiation with Co-60. It was also confirmed that in particular, titan shows the large effect of radioactive emission, and the wettability deteriorates rapidly after {gamma} ray irradiation. (NEDO)

  14. Evaluation report on the development of energy conservation/environment purification system using cleaning effect of optical irradiation; Hikari clean gijutsu wo mochiita sho energy kankyo joka system no kaihatsu hyoka hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The results achieved in fiscal 1992-1995 under the above-named project are stated. In the development of photocatalytic materials, a photocatalytic fluorocarbon polymer sheet suitable for use in a denitration apparatus is developed. A high density fluorocarbon polymer sheet composed of TiO{sub 2} modified with 0.3% of Pd/absorbent zeolite/fluorocarbon polymer PTFE (polytetrafluoroethylene) =48-63/24-36/10-20 is fabricated, which achieves a level higher than the denitration goal of 70%. Although the sheet in a 500-hour accelerated exposure test undergoes a hardening phenomenon in which elasticity decreases and tensile strength increases, yet degradation is hardly detected. Although a slight reduction is detected in denitration efficiency, yet it does not affect its practical application, and thus the durability goal is achieved. In the development of an energy conservation type air cleaning apparatus usable in underground parking areas or motorway tunnels, an apparatus capable of treating air at a rate of 2,000m{sup 3}/hour is fabricated, and this achieves a denitration level of not less than 80% in a field test (in the absence of rainfall). For denitration in the presence of rainfall, the apparatus is combined with an equimolar adsorption system, and a system capable of 80% denitration is proposed on the basis of data actually measured for each of the two. A conceptual design for a service model comprising a photodenitration and equimolar adsorption systems is evaluated, and it is found that it occupies less space than the existing models. (NEDO)

  15. 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.

  16. Analysis of chromatic dispersion compensation by measuring time domain optical spectrum distribution of light pulse; Hikari pulse chu no hacho jikan bunpu sokutei ni yoru bunsan hosho gijutsu no hyokaho

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-05-01

    A large number of single mode fibers (SMF) for 1.3 {mu}m light are installed in electric power communication facilities. On the other hand, light of 1.5 {mu}m band is being used more in the capacity increasing technology to minimize transmission loss. If this is applied to the current SMF, waveform distortion is generated due to wavelength dispersion, thus the transmission speed and distance are limited. In order to evaluate quantitatively the effects of a wavelength dispersion compensating technology, a method was developed to derive time change in each wavelength component in light pulse. No sufficient wavelength separation is possible if permeation bandwidth of a wavelength filter is wider than the wavelength width of the light pulse. Therefore, a method was developed to derive time change in the wavelength components in the light pulse from small difference in the measured light waveforms after transmission when the central wavelength of a wavelength variable filter is varied. It was possible from comparing the method to derive the wavelength dispersion amount and the dispersion compensation amount. Since the method reveals simultaneously the distribution of strength against wavelength and time contained in light pulse, the method is advantageous in elucidating compensation limit and causes for compensation errors. The effectiveness of the method was verified by a 1.5-{mu}m light transmission test. 14 refs., 26 figs., 2 tabs.

  17. Fiscal 2000 achievement report on the development of energy conservation/environment purification system using cleaning effect of optical irradiation; 2000 nendo hikari clean gijutsu wo mochiita sho energy kankyo joka system no kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The research aims to develop materials and apparatuses for the purification of atmosphere using titanium dioxide that exhibits a powerful oxidizing capability when irradiated with light. A study is conducted to find out an optimum composition for a photocatalytic fluorocarbon polymer sheet suitable for use in a denitration apparatus. A high density fluorocarbon polymer sheet composed of TiO{sub 2} modified with 0.3% of Pd/absorbent zeolite/fluorocarbon polymer PTFE (polytetrafluoroethylene) =48-63/24-36/10-20 is found to show high denitration efficiency, and this achieves the denitration efficiency goal. As for sheet thickness, 0.75mm is found to be enough. The sheet experiences some hardening in an accelerated exposure test, but does not change much in a surface gloss test or a chalking test. Although a slight reduction is observed in denitration efficiency, yet the durability goal is achieved. In the effort to develop an energy conservation type air cleaning apparatus, field tests and experiments are repeatedly conducted. As for photodenitration in the cleaning apparatus, the number of photodenitration stages and the magnitude of equimolar adsorption area necessary for achieving an 80% denitration rate is calculated from the relations of the NOx concentration profile and the denitration rate in the equimolar adsorption module to (gas flow rate/module surface), and the result shows that the initially intended goal is achieved. (NEDO)

  18. FY 1974 report on the results of the Sunshine Project. Study of the hydrogen production technology mainly using photoconductor; 1974 nendo hikari handotai wo shutai to suru suiso seizo gijutsu no kenkyu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1975-05-28

    Among semiconductor materials which absorb solar light and produce great photoelectromotive force, materials usable to the electrode of photoelectric cell were sought, the photoelectrode reaction of various electrode materials was investigated, and the photosensitization phenomenon in the solar light region was studied. As to electrode materials, semiconductor materials were sought which have a characteristic of band gap of 1-3eV, and the photosensitization polarization characteristic of a part of the semiconductor materials was measured. Concerning photoelectric cells, the photoelectric cell characteristic was measured by the combination of semiconductor electrode, for the study of the structure of photoelectric cell such as kinds, combination, etc. of electrode materials. As electrode materials, various semiconductors were acquired such as TiO{sub 2}, CdS, GaP, GaAs, Si, Ge, etc., and the electrochemical base photoelectrode characteristic under light irradiation was measured. It was confirmed that GaP and GaAs have good photosensitization polarization characteristics. As the result of the measurement of photoelectric cell characteristics, n-type GaP and n-type GaAs showed good characteristics to anode, and p-type GaP and p-type GaAs to cathode. It was confirmed that there is a possibility of hydrogen production in the solar light wavelength region by the measurement of photoelectric cell characteristics of xenon light and the filter penetration light of xenon light. (NEDO)

  19. Study on solar chemical heat pump system. Basic experiment on dehydrogenation of 2-propanol using heteropoly-acid photo catalyst; Solar chemical heat pump no kenkyu. Heteropoly sankei hikari shokubai wo mochiita 2-propanol no dassuiso hanno

    Energy Technology Data Exchange (ETDEWEB)

    Doi, T [Electrochemical Laboratory, Tsukuba (Japan); T-Raissi, A; Muradov, N [Florida Solar Energy Center, FL (United States)

    1996-10-27

    With the purpose of converting solar heat energy to an industrial heat energy, an examination was carried out empirically on the case of using a heteropoly-acid photo catalyst for the decomposition reaction process of 2-propanol. The experiment was performed in Florida Solar Energy Center, in the U.S.A.. The device for the experiment was constituted of a reaction part, distribution manifold for feeding from the lower part of the reaction part a 2-propanol solution for which a photo catalyst was suspended, storage tank served also as a gas-liquid separating container, and circulating pump. Silica-tangstic acid was used as the photo catalyst. In an outdoor experiment using solar radiation, the quantity of inclined global solar radiation was 530-950W/m{sup 2} in clear days and 100-600W/m{sup 2} in cloudy days, with temperatures between 17 and 26{degree}C throughout the experiment period. In addition, an indoor experiment was also conducted using an artificial light source (UV light). As a result of the experiment, the energy conversion efficiency was at most about 1% of incident UV light, a low figure compared to a heat utilization ratio of approximately 15% with a thermal catalyst. 6 refs., 8 figs.

  20. 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.

  1. Report on results concerning development of supermetal technology (FY2000). Innovative manufacturing technology for iron-based mesoscopic structured material; Super metal no gijutsu kaihatsu seika hokokusho (2000 nendo). Tetsu kei mesoscopic soshiki seigyo zairyo sosei gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    With the purpose of establishing innovative manufacturing technology for microstructure steel having a crystal grain size of about 1 {mu}m or less and a dimensional thickness of 1 mm or more by homogeneous multi-phase structure steel making, R and D was conducted, with fiscal 2000 results compiled. This year, R and D, using a multi-functional integrated test rolling mill, resulted in obtaining ultra-fine grained steel, a steel plate of 5 mm in thickness and 100 mm in width with grains of 1 {mu}m or less homogeneously in the thickness direction. In the investigation on the characterization by the steel plate sample thus obtained and on the method for preventing degradation in elongation, it was proved that an ultra-refined microstructure containing martensite or austenite as the secondary phase has a suppressing effect on the degradation in elongation. Further, examination was made on the widening of a process window for the practicability in the future and on the optimization of large strain deformation conditions. In the method of analyzing and evaluating ultra-refined microstructures, an analysis technology such as an in-lens SEM was proved to be extremely effective on the analysis of microstructures of supermetals created by large strain deformation as well as on the observation of microstructures of a submicron level. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1986-03-01

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

  3. Fiscal 1998 research report. R and D on super metal (Al system mesoscopic texture-controlled material); 1998 nendo seika hokokusho. Super metal no gijutsu kaihatsu (aluminium kei mesoscopic soshiki seigyo zairyo no gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For development of Al materials with superior industrial characteristics (strength, corrosion resistance), this research has promoted development of large-size Al system materials with mesoscopic crystalline texture by high- strain accumulation control technology, and recovery and recrystallization control technology. In this fiscal year, (1) basic study on high-strain accumulation control technology, (2) study on a formation mechanism of ultra- fine crystal grains, and (3) development of a machining process were made. In (1), basic study on low-temperature rolling and study on rolling by rollers having different peripheral speeds were made. In (2), study on refining of recrystallized grains of 5000-base and 7000-base alloys was made. In (3), a low-temperature rolling equipment, and a ultra-rapid heating device were introduced. For the whole R and D project on super metal, the main research facilities such as a low-temperature rolling body for high- strain accumulation and a high-strain accumulative structure formation equipment (melt rolling equipment) for uniform nucleus formation in recrystallization were introduced to gain a firm foothold for the future application research. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

  8. Report on development of super metal technology and on result of innovative technologies for producing material for controlling iron-based mesoscopic structure; 1999 nendo super metal no gijutsu kaihatsu tetsukei mesoscopic soshiki seigyo zairyo sosei gijutsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    R and D was conducted for the purpose of 'establishing innovative technologies for producing microstructure steel having a grain size of approximately 1 {mu}m or less and a thickness of 1 mm through the formation of uniform multi-phase structure steel', with the results for fiscal 1999 summarized. In the subject year, a multi-functional integrated test rolling mill was introduced, with possibility validated for grain ultra-refinement by three types of large strain deformation, and with the effect of deforming conditions confirmed. As for the theoretical understanding of the mechanism of grain ultra-refinement and the establishment of its guiding principle, a progress was made in clarifying the ultra-refinement mechanism particularly by the strain-induced ultra-low-temperature diffusional transformation, revealing for example that micro-bands formed in deformed austenitic substructures provided the nucleation sites for ultra-fine ferrite. In the evaluation of properties on medium size samples prepared by the multi-functional integrated test rolling mill, remarkable improvement was confirmed in yield strength and tensile strength in martensitic steel or tempered martensitic steel as well as in ferritic steel. (NEDO)

  9. Report on results concerning development of supermetal technology (FY2000). Development of technology for aluminum-based mesoscopic-structured metallic material; Super metal no gijutsu kaihatsu seika hokokusho (2000 nendo). Aluminium kei mesoscopic soshiki seigyo zairyo no gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    With the purpose of developing high strength alloys through grain refinement, R and D was conducted, with fiscal 2000 results compiled. This year, using hot rolled plates and cold rolled plates of 5083 based alloys, research was carried out on an optimum warm processing method for forming microstructures. When 5083 alloys were rolled with a large reduction by one pass under a warm to hot temperature range, recrystallized grain structures were obtained having 3-4 {mu}m in the surface and 7-8 {mu}m in the center. The proof stress of these specimens was about 1.3 times as strong as an ordinary 5083 alloy soft material while the elongation was about the same. In the case of 7475 based alloys with Zr added in place of Cr, a warm rolling method, in which the alloys were heated to 350 degrees C and repeatedly reheated by one pass at that temperature, was found effective in forming micro-subgrain structures. By the warm rolling method in which roll temperature was suitably heated, it was made possible to steadily form thermally stable microstructures in 7475 based alloys. The 7475 based alloy plate having a microstructure is superior to an ordinary 7574 plate in resistance against stress corrosion cracking. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1998-07-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1994-12-01

    Described herein are the results of the FY1994 research program for development of control techniques for assembly-type wind power generating systems. The study on optimum system configuration produces 50 to 100kW wind power units for screening small-size wind power plant types, and, at the same time, surveys performance of commercial units and experiences of 9 makers capable of producing the above units. As a result, 3 MICON`s units (output: 100kW, active YAW control, monopole tower, maximum wind speed: 60m/s) are selected. The study on optimum operational techniques integrates 2 medium-size power units into a power line, showing a service factor of 30.2% on the annual average, monthly varying in a range from 11.8 to 45.0%. These units, installed in Miyako Island, were attacked by 3 typhoons of wind velocity of 25m/s or higher in 1994, and the only damage recorded is that of the anemoscope/anemometer. It is found that No.1 unit is located at a better geographical point than the No.2 unit, to produce a higher output. 3 figs., 3 tabs.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1999-12-31

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

  6. FY 1999 report on the results of the development of technology of super metal. Development of nano/amorphous structure control materials; 1999 nendo super metal no gijutsu kaihatsu seika hokokusho. Nano amorphous kozo seigyo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of reducing the amount of energy consumption of transportation equipment such as automobiles, the development is made of innovative metal materials enabling the weight reduction of members relatively on the basis of simple chemical components and by making more substantial improvement of characteristics such as strength and toughness than in the existing metals. For it, the following R and D are conducted in which nano crystal structure and non-equilibrium phase structure such as amorphous are controlled to the limits: 1) particle micro-dispersion technology; 2) high speed super plastic formation technology; 3) high density energy utilization control technology; 4) control cooling technology. In 1), study was made of alloy components and effects of the creation process which are needed for achievement of the nano level of crystal grain. In 2), conditions of vapor deposition and production in high speed particle deposition method are optimally selected, and amorphous and nano crystal structures can easily be produced. In 3), high corrosion-resistant amorphous alloy bulk materials with 5mm thickness and 10mm diameter were successfully trially manufactured. In 4), a bulk amorphous specimen with 10mm outer diameter, 6mm inner diameter and 1mm thickness which was fabricated in the forging method indicated favorable magnetic properties. A method to make a specimen which is more stable is being studied. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-09-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1998-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1998-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1986-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1994-12-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1984-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-10-27

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-02-01

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

  4. Achievement report for fiscal 1998 on the technological development of super metals. Technology to create iron-based mesoscopic tissue controlling materials; 1998 nendo super metal no gijutsu kaihatsu seika hokokusho. Tetsukei meso scopic soshiki seigyo zairyo sosei gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Research and development has been carried out on super metals with an objective to draw out properties possessed by iron and steel materials to their maximum extent and further enhance their recycling performance to make them friendly with global environment. The final goal of this project is to 'establish a technology to create micro tissue steel having crystalline particle diameter of about 1 {mu}mm or less and size having thickness of 1 mm or more by making the steel tissues uniform and multiple in phase'. The studies in the current fiscal year were moved forward mainly on obtaining ultra fine crystalline particles of 1 {mu}mm or less, identifying the ideal large distortion processing conditions, and structuring the guidance principles for ultra-fine micronization of the crystalline particles by using large distortion processing. Discussions were also launched on further micronization of crystalline particles by optimizing chemical composition and on expansion of the process windows assuming practical application thereof in industrial scale. Furthermore, material property evaluation was also begun on ultra-fine crystalline particle materials of smaller than 1{mu}mm. As the mesoscopic structure analyzing technology for the ultra-fine crystalline particle materials, an in-lens resolution SEM was introduced, and the basic method was established. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1988-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

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

  8. EDITORIAL: The next photonic revolution The next photonic revolution

    Science.gov (United States)

    Zheludev, Nikolay I.

    2009-11-01

    This special section on Nanophotonics and Metamaterials is a follow-up to the second European Topical Meeting of the NANOMETA series of meetings (see www.nanometa.org) which took place on 5-8 January 2009, in Seefeld, Austria. The main idea of the first NANOMETA meeting held in 2007 was to bring together the mature community of microwave electrical engineers with the emerging community of photonics researchers interested in the physics of light coupled to nanostructures. In recent years the research landscape has shifted dramatically. A wider proliferation of nanofabrication techniques such as electron beam lithography, nanoimprint and focused ion beam milling, diagnostics techniques such as near-field scanning imaging, cathodoluminescence with nanoscale resolution and micro-spectrometry, and the availability of affordable broadband and ultrafast optical sources, have moved the research focus of the NANOMETA community to the optical domain. Quite naturally the ideas of the nonlinearity of materials and the coherency of light in the nanoscale realm have been widely discussed. Driven by the dream of untapped device and material functionality, nonlinear and switchable nanophotonic devices and photonic metamaterials, along with the concept of tailoring the electromagnetic space with metamaterials, appear to be the main avenues along which the subject will develop in the coming years. Indeed, in the last 20 years photonics has played a key role in creating the world as we know it, with enormous beneficial social impact worldwide. It is impossible to imagine modern society without the globe-spanning broadband internet and mobile telephony made possible by the implementation of optical fibre core networks, optical disc data storage (underpinned by the development of compact semiconductor lasers), modern image display technologies and laser-assisted manufacturing. We now anticipate that the next photonic revolution will continue to grow, explosively fuelled by a new

  9. Research and development project in fiscal 1989 for fundamental technologies for next generation industries. Achievement report on research and development on photoreactive materials (Research on designing and organizing technology for PHB materials); 1989 nendo hikari hanno zairyo no kenkyu kaihatsu seika hokokusho. PHB zairyo no sekkei to soshikika gijutsu ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-03-01

    With an objective of putting into practical use the wavelength multiplex recording system applied with the PHB phenomenon, research and development has been performed on material systems making high quality hole production possible at high sensitivity and high density. This paper summarizes the achievements in fiscal 1989. In the discussion of PHB materials, measurements were performed on the triple state of zinc, magnesium, copper and iron complexes of tetra-phenyl porphin and the triple state spectra by using the flash decomposition method in order to develop new photo-gate type material systems. Correlation was discovered between the free energy change in the reaction and the PHB reactivity from the result of the experiments, whereas important findings were obtained for designing the photo-gate type PHB material systems. In the discussion of the wavelength multiplex recording, an optical system was designed and fabricated to perform scanning and detection on sample surface by using laser beam squeezed to a diameter of 100 {mu} m. Discussions were given on the wavelength multiplex recording, position multiplex recording, and high-speed recording using this optical system. As a result, position multiplex holes were produced successfully by using the laser beam squeezed to a diameter of 100 {mu} m on four different positions on the sample surface, when the tetra phenylporphin derivative was used. (NEDO)

  10. FY 1998 report on the results of R and D projects by local consortiums for immediate effects. Development of titanium dioxide thin film photocatalysts sensitive to visible light and their applications to cleaning systems; 1998 nendo kashiko kasseina sanka chintan hikari shokubai usumaku no kaihatsu to sono system oyo seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The R and D project has been implemented for developing the thin film-making process techniques which can increase areas of titanium oxide (TiO{sub 2}) photocatalysts sensitive to visible light and their mass production. The fundamental investigations are directed to elucidation of the mechanisms involved in manifestation of activity in visible light of the visible light-sensitive thin film doped with the Cr, V or other ions. The sputtering involving no ion implantation is devised for producing the thin films, to realize the highest visible light sensitivity recorded for the thin TiO{sub 2} film. The sputtering process is investigated in detail for the film-making conditions, e.g., Ar pressure, effects of coexisting O{sub 2} gas, and power gap. The conditions under which the thin film serviceable under commercial conditions can be produced are not established yet, but it is confirmed that the coating film shows superhydrophilicity and photocatalytic activity for, e.g., sterilization, when irradiated with ultraviolet ray. The method has been established for evaluating deodorizing and contamination-preventive functions of the thin films in ultraviolet and visible rays. The project has also confirmed applicability of the techniques to the commercial products, and established the self-cleanable catalyst by combining the oxide catalytic function with the photocatalytic function. (NEDO)

  11. FY 1999 project on the development of new industry support type international standards. Standardization of methods to test/evaluate plastic optical fiber; 1999 nendo shinki sangyo shiengata kokusai hyojun kaihatsu jigyo seika hokokusho. Plastic hikari fiber no shiken hyoka hoho no hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The experimental research was conducted with the aim of developing test/evaluation methods of plastic optical fiber (POF) and proposing a draft on the standards to IEC, and the FY 1999 results were outlined. In the study of the band measuring method, the equipment designed was compared/verified in the pulse method with the frequency sweep method equipment for quartz base optical fiber use to confirm the accordance. Effects were further studied of experimental conditions including exciting conditions. Also about the frequency sweep method, the same verification was made to see the accordance with POF measured values in the pulse method. In the analysis by theoretical calculation, obtained were the results by which the experimental results can almost be explained. In the experiment on the optical transmission, the bit-error-rate was measured by transmitting digital signals to POF. As a result, it was confirmed that there were close relations between the band width of POF, bit-error-rate and changes in receiving sensitivity. As to the above-mentioned band experimental method, strategy for standardization was studied, and the making of a draft on the standards was started which is to be proposed at the meeting of TC86/SC86/WG1. (NEDO)

  12. FY 2000 report on the results of the regional consortium R and D project - Regional consortium energy R and D. Development of new vacuum ultraviolet area optical materials realizing next generation short wavelength optical lithography; 2000 nendo chiiki consortium kenkyu kaihatsu jigyo - chiiki consortium energy kenkyu kaihatsu. Jisedai tanhacho hikari lithography wo jitsugensuru shinku shigaiiki kogaku zairyo no kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    As materials for next generation lithography use optical device using short wavelength light sources such as F{sub 2} and Ar{sub 2}, the development was proceeded with of fluoride monocrystal materials and 12-inch class large/high quality monocrystal production technology. Studies were made in the following five fields: 1) proposal/design of new materials and the heightening of performance: 2) establishment of the large/high quality crystal production method; 3) evaluation of optical properties and elucidation of micro-defect formation mechanism; 4) comprehensive investigational research; 5) study of the evaluation technology by vacuum ultraviolet area pulse light. In 1), for the development of the optimum materials, a lot of materials were tried to be monocrystallized, and the permeability was estimated by measuring the reflectance in the vacuum ultraviolet area. As to LiCaAlF{sub 6}, monocrystal with 1-inch diameter was made by the Bridgman method. In 2), studies were made of conditions for large crystal growth by the pull method, large crystal growth by the Bridgman method, and the structure of production equipment for crystals with larger diameter. (NEDO)

  13. Fiscal 1997 R and D project on industrial science technology under consignment from NEDO. Report on the R and D of nonlinear optoelectronic materials; 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Hisenkei hikari denshi zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    As to the development of organic base materials, the paper is going ahead with an evaluation, higher performance and further use as materials of basic optical properties of quirale nonlinear materials and organic conjugate base materials which are promising among organic low molecular materials. As the development of orientation control crystal growth technology, grooves for orientation control were formed on the surface of the lead glass substrate, from which thin film single crystals were obtained. The nonlinear response was studied of the glass where semiconducting fine particles dispersed in matrix glass. Glass scattering base prototype materials were selected by the sol-gel method and ultra-low melting-point glass method. The glass dispersion base materials by the very fast cooling method was also studied. For the purpose of realizing a high speed switching characteristic, a processing technology was developed of ultra fine particle dispersing polymer light waveguide. As to the technology for super lattice, the optimum nonlinear performance materials were selected mainly with the optimum complex super lattice base. Moreover, the three-dimensional super structuring technology was constructed to improve nonlinear optical characteristics. The comprehensive investigational study was conducted for effective promotion of the research development. 177 refs., 260 figs., 27 tabs.

  14. FY 1999 project on the development of new industry support type international standards. Standardization for high-interoperability of optical disk systems; 1999 nendo shinki sangyo shiengata kokusai hyojun kaihatsu jigyo seika hokokusho. Hikari disk system no sogo un'yosei kakuho no tame no hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The R and D were conducted on the standardization for interoperability of optical disk system, and the FY 1999 results were summarized. In the study, for the volume/file structure specified by ISO/IEC 13346, the development of standards was made for interoperation of the UDF specified by OSTA. In this fiscal year, to avoid the problem on non-interchangeability of UDF which actually exists, enhancement of functions of a test tool for UDF interchangeability was tried. Namely, development was carried out of UDF interchangeability test tool, UAF related standards, and UAF related standards assessment system. Especially, it was formally announced that UDF security enhancement of UAF related standards will be included in UDF2.x in the OSTA conference held at the end of FY 1999. Also, a draft on the standard information was drawn up domestically. The standards including API are expected to be established as standards through activities in the next fiscal year. (NEDO)

  15. FY 1998 report on the results of the venture promotion type regional consortium- small-/medium-size enterprise creation base type. consortiums. Development of photo-curing containing coating materials for comfortable, healthy indoor environments; 1998 nendo shitsunai kankyo no kaitekisei, kenkosei ni taioshita hikari jugo urushi toryo no kaihatsu seika hokokusho. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This research and development project is aimed at activation of the urushi industry and creation of the new business by utilizing the natural material by the name of urushi solution as the functional coating material satisfying the various conditions required for the coating solutions of the next generation, e.g., healthy, safety, comfortable and environmentally harmless characteristics. The urushi solution developed by this project is an innovative, creative one, which solves the major problems involved in the conventional solution, i.e., slow curing and causing eruption of the skin, by enzyme-aided polymerization and photopolymerization. The physiological activities of the urushi solution component and antimicrobial effects by the urushi layer, which are considered to be the potential functions of urushi, are also investigated for the project. The urushi-containing UV coating material means an ultraviolet-curable urushi/synthetic resin material, composed of refined urushi, a photopolymerizable acrylate compound and photopolymerization initiator. The refined urushi for the urushi-containing UV coating material can be adjusted for its degree of polymerization, as found by the experimental investigation of the catalyst for accelerating enzyme-aided polymerization, to improve curability. The confirmed physiological activities of the urushi component are accelerated solidification of the blood and manifestation of the anti-HIV function. The coating film of the refined urushi is found to be effective against Bacillus coli and Staphylococcus aureus. (NEDO)

  16. Achievement report on research and development in the Sunshine Project in fiscal 1976. Research and development of water decomposition by using a hybrid cycle composed of thermo-chemistry and photo-chemistry; 1976 nendo netsukagaku oyobi hikari kagaku hybrid cycle ni yoru mizu bunkai no kenkyu kahatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1977-03-01

    This paper describes water decomposition by using a hybrid cycle composed of thermo-chemistry and photo-chemistry. Ferric sulfate and HI are obtained from ferrous sulfate and iodine via photo-chemical reaction. This is an endothermic reaction of 10.8 kcal. Then, the photo-chemically reacted aqueous solution is electrolysed to separate HI, while Fe{sup 3+} (ferric ion) is reduced and converted into Fe{sup 2+} (ferrous ion). Oxygen is generated at this time. Since mixed potential is made from iron oxidation and reduction potential and iodine potential, the electrolytic efficiency is greatly influenced by electrode materials. Ideally, an electrode material that causes only the reduction of Fe{sup 3+}, but not other reactions is preferable. The HI is decomposed into hydrogen and iodine by electrolysis. Research is continuing to acquire hydrogen from HI thermo-chemically. Endothermic reaction heat of 7 to 8 kcal has been obtained in photo-chemical reaction, the heat quantity being close to the theoretical value of 10.8. A result close to the theoretical value may be expected if the electrode material problem is solved. The basic research will be continued for a high possibility of linking the research to a pilot plant in the future. (NEDO)

  17. Report on achievements in fiscal 1984 on research and development commissioned from Sunshine Project. Research and development of water decomposition using the mixed cycle of thermo-chemistry, photo-chemistry, and electro-chemistry; 1984 nendo netsu kagaku, hikari kagaku, denki kagaku konsei cycle ni yoru suibunkai no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-03-01

    Researches have been performed on water decomposition by multiplex utilization of solar beam, and the achievements in fiscal 1984 were reported. In fiscal 1984, activity coefficients for iron ions and iodide ions having been discussed by the previous fiscal year were derived, and free energy variation amount and accumulated energy amount generated as a result of photo-chemical reactions were derived. Values derived in the experiment were low, which are the values at room temperatures, and higher values are expected under elevated temperatures. In an experiment using a beam irradiation electrolytic tank, investigations were made on thermo-chemical isolation and electrolytic isolation of HI. Since HI is strongly acidic, it does not get liberated unless phosphoric acid concentration and temperature are increased, which is a condition opposing to easiness of the photo-chemical reaction. Therefore, an experiment on HI was performed not only on isolation due to heat, but also isolation by electrolysis, where the intended result was obtained. The mixed system of a photo-chemical system and an electrolytic system requires a system configuration that considers dynamic matching conditions, for which a system to perform measurements simultaneously on a large number of kinds was found effective. (NEDO)

  18. Achievement report for fiscal 1982 on Sunshine Program-entrusted research and development. Research and development of electrolysis of water using thermochemical/photochemical/electrochemical mixed cycle; 1982 nendo netsu kagaku, hikari kagaku, denki kagaku konsei cycle ni yoru suibunkai no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1983-03-01

    The research and development aims to increase the yield of light energy conversion in a photochemical reaction and thereby to increase the efficiency of the reaction of electrolysis of water. In the research, the electrochemical properties of Fe{sup 3+}/Fe{sup 2+} and I{sub 3}{sup -}/I{sup -} systems in a phosphoric acid solution are examined. As for the behavior of iodine ions I and I{sub 3}, their capacity coefficient rises with a rise in temperature at any phosphoric acid concentration level. Furthermore, more water molecules are disengaged from hydrated iodine ions with an increase in the concentration of phosphoric acid, and the now naked iodine ions are higher in activity coefficient. The behavior of iron ions in phosphoric acid is observed by use of a rotating electrode. Although the activity coefficient ratio of iron ions and iodine ions exerts a great influence in the process of conversion from light energy to chemical energy, the outcome of experiment indicates that the ratio is low for both iron- and iodine-based systems. It is consequently concluded that an energy conversion rate of approximately 10kcal/mol is expected from a photochemical reaction as in the case of hydrated systems. (NEDO)

  19. FY 1985 report on research and development project commissioned by the Sunshine Project. Research and development of electrolysis of water by combined thermochemical, photochemical and electrochemical cycles; 1985 nendo netsu kagaku, hikari kagaku, denki kagaku konsei cycle ni yoru mizu bunkai no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1986-03-01

    Reported herein are the FY 1985 research results on the combined water electrolysis cycles by effective utilization of sunlight. The tests for determining activity coefficient of an iron/iodine system is continued from the previous year, and the results are used to find the optimum conditions under which the photochemical and electrolysis reactions are effected simultaneously in a light-irradiated electrolysis tank. It is found that a photochemical reaction efficiency of approximately 0.3% is obtained at 5 W/cm{sup 2} as light intensity and 25 degrees C. For electrolysis of water by the multi-stage hybrid cycles, it is necessary for the reaction in each stage to proceed to almost the same extent so that it gives a just enough quantity of product for the subsequent stage. The data obtained are analyzed comprehensively, while taking the system matching conditions into consideration. The system for simultaneously measure two or more parameters, developed in the previous year, is equipped with a high-level language compiler of high effective speed, to simultaneously measure these parameters at shorter intervals. (NEDO)

  20. Achievement report for fiscal 1983 on Sunshine Program-entrusted research and development. Research and development of water-splitting systems using thermochemical, photochemical, and electrochemical mixed cycle; 1983 nendo netsu kagaku, hikari kagaku, denki kagaku konsei cycle ni yoru suibunkai no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1984-03-01

    The report covers the outcome of a basic study of the splitting of water using photochemical reaction. The behavior of iron ions and iodine ions is important in the photochemical reaction in the phosphoric acid and in the energy exchange that follows, and the characteristics of iodine ions are investigated in detail. Since the response of a commercially available iodine ion electrode is slow in a strong phosphoric acid solution, a silver/silver iodide electrode is experimentally built, and is used in the investigation of the iodine ion activity coefficient. In the investigation, it is indicated that more energy is accumulated when temperature or concentration is higher. In the case where sunlight is used as the light source for photochemical reaction, it is necessary to perform optimal control in compliance with fluctuation in sunlight intensity. In the study, fluctuation in sunlight intensity is assumed to be composed of step waves, pulse waves, and sinusoidal waves, and a result of digital simulation is obtained by using a modelling method for control. For the convenience of computation, the number of cell division is set at approximately five, when the solution flow responsiveness and energy conversion utilization factor are found to be excellent. (NEDO)

  1. Achievement report on research and development in the Sunshine Project in fiscal 1978. Research and development of water decomposition by using the thermo, photo and electro-chemistry mixed cycle; 1978 nendo netsukagaku, hikari kagaku, denki kagaku konsei cycle ni yoru suibunkai no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1979-03-01

    This paper describes research achievements in fiscal 1978 on water decomposition by using the thermo, photo and electro-chemistry mixed cycle. Fundamental experiments were carried out in a photo-chemical and electrolytic reaction tank to electrolyse as quickly as possible HI and iron (III) produced by photo-chemical reaction in the iodine-iron (II) system, and separate the products therefrom. The photo-chemical reaction was analyzed by using the spectro-photometry, and the degree of reaction progress was quantified by using the change in absorbance of I{sub 3}{sup -}. Since temperature rise due to sun beam irradiation accelerates reverse reaction, the apparent equilibrium position under the beam irradiation was moved from the product system to the original system as the temperature rises. An expression showing the reaction efficiency was introduced to indicate that beam collection enhances the efficiency. There is no electrolytic electrode material that reduces only iron (III) preferably, and electrolysing the aqueous product solution as it is results in low energy efficiency. In addition, as a result of discussing factors affecting the effect of HI decomposition (to acquire hydrogen) by using a heat diffusion column, it was revealed that maximum separation effect can be derived if the material is fed from the center of the column. Discussions were given also on other factors. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

  3. Fiscal 2000 project for development of international standards for supporting novel industries. Standardization of methods for testing and evaluating plastic optical fiber; 2000 nendo shinki sangyo shiengata kokusai hyojun kaihatsu jigyo seika hokokusho. Plastic hikari fiber no shiken hoho no hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Studies were made about methods for testing and evaluating plastic optical fiber (POF) for the purpose of submitting a proposition to IEC (International Electrotechnical Commission) for the methods to be internationally standardized. In this fiscal year, tests and analyses were conducted relative to the effects of the light source emission area size, wavelength, and axial displacement. Next, underfilled launch was studied from a practical viewpoint, and a method using a mode filter was proposed. Finally, round robin tests were conducted for each of the companies using overfilled launch and underfilled launch, and the reproducibility of measured values was grasped. In this fiscal year, a new study added, which involved a method for measuring structural parameters. Though POF was below standard as an object of IEC's gray scale method, yet it was found, thanks to the recently developed CCD (charge coupled device) cameras, that the method might also be applicable to POF. A groundwork plan was drafted on band test methods including the overfilled launch method toward international standardization. (NEDO)

  4. Fiscal 1999 achievement report. Venture seed pickup type international cooperative research project (Development of ultrahigh-speed terabyte optical disk storage device); 1999 nendo venture seeds hakkutsugata kokusai kyodo kenkyu jigyo seika hokokusho - venture seeds No.7. Chokosoku terabyte hikari disk kioku sochi no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Efforts are made to submit a concrete, industrialization-capable proposition for a huge-volume high-rate data storage device to be connected directly to the optical fiber communication network. The terabyte optical disk storage device is based on the patented technologies owned by some organizations participating in the project, and embodies a 1-terabyte memory and a 1-Gbps data transfer rate in a CD-size disk with CD/DVD compatibility not affected. The road to a novel, huge-volume, ultrahigh-speed data storage device was open when the basic principle of collinear-polarization digital volume holography was successfully confirmed. A new optical disk medium was fabricated for recording digital volume holograms, and a success was attained in retrieving records on a terabyte optical disk evaluation system. A novel spatial light modulator was successfully fabricated using the magnetooptic effect. This will enable improvement on transfer rates in digital volume hologram retrieval devices and introduction of such devices into optical communication in the field of information technology. (NEDO)

  5. FY 1999 project on the development of new industry support type international standards. Standardization for high-interoperability of optical disk systems; 1999 nendo shinki sangyo shiengata kokusai hyojun kaihatsu jigyo seika hokokusho. Hikari disk system no sogo un'yosei kakuho no tame no hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The R and D were conducted on the standardization for interoperability of optical disk system, and the FY 1999 results were summarized. In the study, for the volume/file structure specified by ISO/IEC 13346, the development of standards was made for interoperation of the UDF specified by OSTA. In this fiscal year, to avoid the problem on non-interchangeability of UDF which actually exists, enhancement of functions of a test tool for UDF interchangeability was tried. Namely, development was carried out of UDF interchangeability test tool, UAF related standards, and UAF related standards assessment system. Especially, it was formally announced that UDF security enhancement of UAF related standards will be included in UDF2.x in the OSTA conference held at the end of FY 1999. Also, a draft on the standard information was drawn up domestically. The standards including API are expected to be established as standards through activities in the next fiscal year. (NEDO)

  6. Research and development project in fiscal 1989 for fundamental technologies for next generation industries. Achievement report on research and development on photoreactive materials (Research on enhancement of functional stability of PHB materials); 1989 nendo hikari hanno zairyo no kenkyu kaihatsu seika hokokusho. PHB zairyo no kino anteisei kojo ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-03-01

    With an objective of establishing the fundamental technologies related to photo reactive materials that can be used for ultra-high density recording, high-resolution indication, and photoswitches by controlling structures and association status of molecules by using actions of light, research and development has been performed. This paper summarizes the achievements in fiscal 1989. In the research of synthesis and evaluation of PHB materials, a possibility was verified to form holes at temperatures higher than the liquid nitrogen temperature on all the materials in which six kinds of ionic porphin derivatives were dispersed into polyvinyl alcohol. Stability of holes in the tetra-alkyl pyridinium porhpn/polymer system was evaluated, the hole half-width was measured accurately by using ring die laser, and the hole forming characteristics were evaluated by means of high-power density and brief laser light irradiation. In search of new guests, a two-photon absorption spectrum measuring instrument was assembled to measure samples having zinc tetra-phenylporphyrin derivative as the guest. In addition, hole formation was discovered in samples having indomethylene based coloring matter as the guest. (NEDO)

  7. Fiscal 2000 project for development of international standards for supporting novel industries. Standardization for enhanced interoperability between optical disk systems; 2000 nendo shinki sangyo shiengata kokusai hyojun kaihatsu jigyo seika hokokusho. Hikari disk system no sogo un'yosei kakuho no tame no hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Research and development was carried out for the enhancement of logical format-based interoperability between optical disk systems for the purpose of presenting propositions for international standards. That is, UDF (universal disk format) defined by OSTA (Optical Storage Technology Association) was taken up against the volume/file structure defined by ISO/IEC13346, and efforts were exerted to substantiate environments for its compatibility test and to develop specifications to achieve such enhanced interoperability. In this fiscal year, specifications were drafted for application program interfaces for the UDF-based file system and UDF security augmentation. These would be presented to IEC (International Electrotechnical Commission) and OSTA, respectively. Their Japanese versions were submitted to the Ministry of Economy, Trade and Industry of Japan, for publication as standard-related information. Maintenance of UAF (universal accessible file) system-compliance test tools were accomplished in response to user requirements and to the updating of UDF-compliance test disk specification. (NEDO)

  8. Compact digital NTSC TV signal transmission system using SM optical fibers and its application to operating status monitoring for laser cutting machine; Digital gazo shingo no kan`igata hikari fiber denso system to sono laser cutter no dosa jotai kanshi eno oyo

    Energy Technology Data Exchange (ETDEWEB)

    Asada, H. [NEC Shizuoka, Ltd., Shizuoka (Japan); Rabou, N. [University of Helwan, (Egypt); Ikeda, H.; Shimodaira, Y.; Yoshida, H. [Shizuoka University, Shizuoka (Japan)

    1998-02-01

    This paper describes a compact bandwidth-compressed digital NTSC picture code transmission system in which circuit configurations are simplified and made inexpensive. The bandwidth of digital NTSC picture codes is compressed in accordance with subjective evaluation, and so the sampling rate is set at 8.13 MHz (2.28 times fsc) and the quantizing level at 5 bits. The frame bits for detecting the frames of picture elements me generated by alternately generating 1 and 0 when the frames are specified. The proposed system is constructed using edge- emitting LED`s (ELED`s) and single- mode (SM) fibers for transmitting digital NTSC picture codes w m to easily distribute video signals from a video camera to video monitors. The transmitter was 80 times 100mm in size, 120 g in weight, and 1000mw in power dissipation. The receiver was 55 times 120 mm in size, 100g in weight, and 800mw in power dissipation. Using the compact bandwidth-compressed digital NTSC picture code transmission system a shot of the working pice in the laser cutting machine, as an example, was satisfactorily transmitted via SM optical fibers without noses. 18 refs., 12 figs., 2 tabs.

  9. Research and development of basic technologies for the next generation industries, 'light-reactive materials'. Evaluation on the second term research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'hikari hanno zairyo'. Dainiki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    Research and evaluation was performed with an objective of establishing the basic technology related to light-reactive materials that control the structures and status of aggregation of molecules by using actions of light, and can be used for ultra-high density recording, high resolution indication and light switches. In elucidating the basic characteristics of photochromic materials, a non-destructively readable recording system was proposed and demonstrated, highly durable and high-functional photochromic compounds were developed, and a number of material design guidelines were accumulated to realize characteristics required in light-beam recording. With regard to development of the photochromic materials, realization of photochromic thin films that can record wavelengths in multiplex manner has become more realistic. For elucidating basic characteristics of PHB materials, a method for evaluation from a number of directions including the time method for photon echo was established in addition to the conventional frequency recording characteristics. Regarding the elucidation of the PHB phenomenon, demonstration was carried out on intermediate zone structure control in diversified material systems including living organism substances, where a large number of findings were accumulated. (NEDO)

  10. Achievement report on research and development in the Sunshine Project in fiscal 1977. Research and development of water decomposition using mixture cycles composed by thermo-chemistry, photo-chemistry and electrochemistry; 1977 nendo netsukagaku, hikari kagaku, denki kagaku konsei cycle ni yoru suibunkai no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1978-03-01

    Discussions are being made on manufacture of hydrogen and oxygen from water decomposition using mixture cycles composed by thermo-chemistry, photo-chemistry and electrochemistry using ferrous sulfate and iodine. Photo-chemical reaction produces Fe(OH)SO{sub 4} and HI, but due to difficulty of isolating Fe(OH)SO{sub 4}, photo-chemical reaction that can obtain the compound as Fe{sub 2}(SO{sub 4}){sub 3} was introduced. A method was introduced that can perform HI isolation simultaneously while performing reaction to reduce Fe{sup 3+} and turn it into Fe{sup 2+} (generating oxygen) by means of electrolysing the liquid after the former reaction. The electrolytic process decomposes HI into hydrogen and iodine (discussions on thermo-chemical decomposition is also continued). Since the photo-chemical reaction can cause reverse reaction, discussions were given on the reaction process in order to suppress the reverse reaction and enhance the conversion efficiency. This paper describes the achievements during fiscal 1977. A quantification method was elucidated on individual iodine components so that it can be used for computerized control (measurement of absorbance of I{sub 3}{sup -}) . An electrolytic tank was discussed that decomposes and isolates photo-chemical reaction products before the reverse reaction occurs. Heat diffusion method was also discussed that isolates hydrogen from HI decomposition products. (NEDO)

  11. Achievement report on research and development in the Sunshine Project in fiscal 1979. Research and development on water decomposition by using mixed cycle of thermo-chemistry, photo-chemistry and electrochemistry; 1979 nendo netsukagaku, hikari kagaku, denki kagaku konsei cycle ni yoru mizu bunkai no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-03-01

    This paper describes achievements in research and development in the Sunshine Project in fiscal 1979 on water decomposition by using mixed cycle of thermo-chemistry, photo-chemistry and electrochemistry. In research on the light irradiation electrolytic process, with an objective of improving the reaction efficiency, discussions were given by raising light intensity on the irradiated surface as high as 13 times that of the sunlight. The subsequent process is electrolysis of products from photo-chemical reaction, and the product concentration should be high enough to have HI decomposition (hydrogen acquisition) proceed with high efficiency. Experiments were carried out at 0.03 to 0.1M as iodine concentrations (product HI concentration at 3%). A photo-chemical reaction rate of 80% was obtained at light intensity as high as 12 times that of the sunlight, and iodine concentration of 0.07 mM. The efficiency was 15%. Raising temperature causes the reaction rate to decrease, but it can be supplemented by raising the light intensity, where high concentration HI content was obtained. Rate controlling process in the reaction was elucidated from activation energies in the reaction process of each element on the iodine concentrations from 3 to 30 mM used in the photo-chemical reaction. Experiments were performed on HI decomposition (hydrogen acquisition) by using a heat diffusion column. Separation performance in a filled type column was worse than that in an empty type column, which requires future discussions. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

  18. Report on achievements in fiscal 1999 on research and development of the glycocluster controlled biological molecule synthesizing under the industrial and scientific technology research and development theme [university collaborated type]. Bio-fiber manufacturing technology of glycocluster utilizing type; 1999 nendo glycocluster seigyo seitai bunshi gosei gijutsu seika hokokusho (glycocluster riyogata bio sen'i seizo gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This paper describes the achievements in fiscal 1999 on development of the technology to manufacture glycocluster controlled biological molecules, particularly bio-fibers. It was made clear for the first time that the method for synthesizing glycoside and sugar chain using solid ultra-strong acid can be a new method for polysaccharide synthesis (polycondensation reaction) which is extremely simple and versatile as a result of using the solid ultra-strong acid. It can also be applied to general glycoside synthesis. In glycopeptide synthesis of the regular sequence type using high-functional condensation reaction, such a condensation agent as diphenyl phosphoryl azide was found effective in polymerization reaction without protection of glycopeptide, which has been impossible conventionally, and was found to have high versatility as a method for synthesizing mucin glycoproteins widely distributed naturally. In simplified synthesis of physiologically active glycopeptide, notice was given to tyrosine which is not glycosylated in the natural world, even though having hydroxyl groups in side chains as in serine and threonine. A method was established to introduce sugar chains into this hydroxyl group. This method exhibits power also in the synthesis of physiologically active glycopeptide of non-natural type. The paper describes also the comprehensive survey. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1993-11-25

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-04-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-04-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

  11. FY 1997 report on the study on lamination control technology for functional multi-element oxide thin films by complex beam epitaxy (CxBE) process; 1997 nendo chosa hokokusho (sakutaisen epitaxy (CxBE) ho ni yoru kinosei tagenso sankabutsu usumaku no sekiso seigyo gijutsu ni kansuru kenkyu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Complex beam epitaxy (CxBE) process was proposed and demonstrated as new deposition process of multi-element oxide thin films. This process radiates excimer laser onto a metal complex target of ethylenediamine-tetraacetate complex under reduced pressure oxygen atmosphere condition in a reaction vessel to supply raw material onto a heated substrate. This process allowed deposition of YBCO123 phase hetero-epitaxial film onto a single-crystalline SrTiO3 substrate. This process was proved to be promising through study on crystal orientation, composition transcription and surface smoothness of the obtained oxide thin films. In addition, epitaxial ZnO film was also deposited onto a single crystalline Al2O3 substrate by this process. The relation between the obtained film and substrate epitaxy was examined, and photoluminescence of specimens was measured by triple wave of Nd:YAG laser. As a result, it was clarified that the epitaxial ZnO film prepared by this process is useful as laser material. 60 refs., 48 figs., 5 tabs.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-03-30

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

  5. Fiscal 1999 report on basic research for promotion of joint implementation programs. Research on potential for higher energy efficiency through instrumentation, control, and energy saving equipment (Research report); 1999 nendo keisoku seigyo oyobi sho energy kiki ni yoru sho energy potential chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    As part of the 'clean development mechanism (CDM)' activities to be conducted by advanced nations jointly with developing nations, a survey is conducted of potential for higher energy efficiency, the effect of greenhouse gas reduction, and the effect of related investments in Egypt's textile (dyeing) industry. As the result, it is found that the Egyptian textile (dyeing) industry is rich in potential for higher energy efficiency and that intensification of energy management with importance attached to instrumentation will be quite effective. Private plants, though small in scale, enjoy a high operating rate and are full of life. As for their energy management, however, though management oriented instrumentation is found to stay without being scattered or lost in case of newly introduced equipment, normal operation is impeded by damaged parts which are not duly repaired or replaced. As for state operated plants, they are large in scale and are provided with some leading-edge facilities. Many of them are obsolete, however, and a privatization plan is under consideration, these discouraging investors and reducing vitality. Operation control or quality control are not sufficiently practiced in the administration of plants, and they need improvement. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

  8. Fiscal 1998 achievement report on regional consortium research and development project. Venture business raising type regional consortium - small business creating base type (Control of gene expression by ligands for nuclear receptors and its application to medicine manufacture - 2nd year); 1998 nendo kakunai juyotai ligand ni yoru iden joho hatsugen no seigyo to iyaku seizo process eno oyo seika hokokusho. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Studies are made about ascochlorin and its derivatives which are expected to be effective in the treatment and prevention of lifestyle diseases such as arteriosclerosis, diabetes, hypertension, etc. The current goal is to definitely prove at the cell culture stage that ascochlorin and its derivatives act as ligands for nuclear receptors. As the result of the effort to prove their activation of nuclear receptors, it is clarified that they activate not only PPARr, which is the initial target of the research, but also PPARa, PXR, and ER. A computer simulation of interaction between ascochlorin derivatives and PPARr is conducted, and now it is predicted that the helix 10 cubic structure is transformed so that co-activators may connect to the structure. It is also found that AS-6 inhibits almost completely the appearance of type II diabetes in the db/db mouse lacking leptin receptors and type I diabetes in the NOD (non-obese diabetes) mouse. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

  10. Improvement of the efficiency characteristics on the photovoltaic generation system based on a generation control circuit. Part 3. Research on architectural systematization of energy conversion devices; Dosaten seigyo kairo wo mochiita taiyo denchi hatsuden koritsu no kaizen. 3. Energy henkan no kenchiku system ka ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Shimizu, T.; Ito, N.; Kimura, G.; Fukao, S.; Sunaga, N.; Tsunoda, M.; Muro, K. [Tokyo Metropolitan University, Tokyo (Japan)

    1996-10-27

    In introducing a photovoltaic power generation system to urban homes, the general practice is to install a large number of solar cell panels on the roof. However, as is often the case, a part of the solar cell panels is in the shadows (partial shadows) of neighboring homes, electric poles, cables and trees. Under the circumstances, studies were made on the numerous changes in the lowered generating capacity of individual solar cells by the partial shadows. Developed by the authors were the generation point control principle, in which the generation point was individually controlled on serially connected plural solar cell modules, and a practical circuit system based on that principle with the effects verified in a field test. In the test, the generated power of the system was 476W without partial shadows, and was 323W with partial shadows and without the operation of the generation point control circuit, increasing to 406W with partial shadows and with the operation of the circuit. As a result, compared with the case where no generation point control circuit was employed, the effectiveness of the proposed circuit was evident. 3 refs., 10 figs., 1 tab.

  11. Study on the improvement of high temperature mechanical properties of carbon fiber reinforced ceramics composites through texture and interface controls; Tanso sen`i kyoka ceramics fukugo zairyo no soshiki kaimen seigyo ni yoru koon rikigaku tokusei kaizen ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    To improve the tenacity and reliability of ceramics, the fiber reinforced ceramics composites compounding high strength long fibers and ceramics have been investigated. In this study, carbon fibers were selected as reinforcement fibers. The hexagonal boron nitride (hBN) was selected as a matrix having the plastic deformation performance. To intend to control the composition of the fiber/matrix interface, composites were created by adding polysilazane which was an organic Si (Si3N4) source. Relationships between the condition of interface of each phase and the high temperature mechanical properties were examined by changing the fabrication condition, to grasp the technical problems, such as the optimization of fabrication condition. Knowledge on the fabrication of long fiber reinforced ceramics composites was obtained including the arbitrary control technology of interface consistency of ceramics composites for super high temperature structures. The carbon fiber reinforced hBN composites developed in this study have excellent strength up to 1,500 centigrade and fracture energy, and they are new prospective materials as well as C/C composites. 4 refs., 37 figs., 13 tabs.

  12. 1998 report on results of technological development of super metal. Innovative technological development for producing advanced structure controlled metallic material (high-speed large reduction rolling technology); 1998 nendo super metal no gijutsu kaihatsu seika hokokusho. Kodo soshiki kozo seigyo kinzoku zairyo sosei gijutsu kaihatsu (kosoku daiatsuka atsuen gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-03-30

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

  15. 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.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

  19. Study on a constant-tip-speed-ratio operation of wind power generation system. Effect of load control system on dynamic behavior; Furyoku hatsuden system no hensoku seigyo unten ni kansuru kenkyu. Fuka seigyokei ga system no rikigakuteki kyodo ni oyobosu eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Wakui, T.; Yamaguchi, K. [Waseda University, Tokyo (Japan); Tanzawa, Y. [Nippon Institute of Technology, Saitama (Japan); Hashizume, T.; Ota, E. [Waseda University, Tokyo (Japan). School of Science and Engineering

    1998-06-01

    The effect that the set data of the load control system in a wind power generation system exerts on the dynamic behavior of a system was investigated. The wind power generation system consists of a hybrid wind turbine with combined Darrieus and Savonius rotors, load with a generator and battery in the center, and a controller. A constant-tip-speed ratio operation that holds the circumferential speed ratio in which the power coefficient is maximized irrespective of the change in wind velocity was used to extract and convert the wind energy more effectively. In a high-wind velocity area, the system is operated at a fixed speed, and the increase in rotation is suppressed to protect the wing strength. In a large system, the response characteristics are only slightly improved by the limited load operation range and influenced rotor inertial. Power cannot be fully extracted even if the control system is changed in setting, and the applicability to the wind situation remains low. During the actual operation, the adjustment value of the control system should be set so that the output operation is satisfactorily possible in the specified load operation range, that is, the change in the instantaneous value of an effective power coefficient indicates almost flat gain characteristics in frequency characteristics. 14 refs., 10 figs., 2 tabs.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

  1. 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)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

  3. Identificação de Genótipos de Feijão-caupi Tolerantes a Acidez em um Latossolo Vermelho-Amarelo do Estado de Roraima = Identification of cowpea genotypes sensitivity to acidicy conditions in an Oxisol of Roraima State (Brazil.

    Directory of Open Access Journals (Sweden)

    Sandra Cátia Pereira Uchôa

    2007-12-01

    Full Text Available O presente trabalho foi realizado com o objetivo de identificar genótipos de feijão-caupi (Vigna unguiculata (L Walp., tolerantes à acidez. O trabalho foi realizado em casa de vegetação localizada no Campus do Cauamé, da Universidade Federal de Roraima, utilizando um Latossolo Vermelho-Amarelo de Boa Vista-RR. Foi adotado o delineamento experimental de Blocos Inteiramente Casualizados em esquema fatorial 2 x 5 x 10 com três repetições. Os tratamentos resultaram de duas formas de localização do calcário (localizada e não-localizada, 5 profundidades (0-5; 5-10; 10-15; 15-20; 20-25 cm e 10 genótipos de feijão-caupi(IT85D-3428-4-R2,4-HM; Apiaú; Hikari Graúdo; Pretinho Precoce 1; IT85D-3428-4-3-HP; USA; UFRR Grão Verde; BRS-Mazagão; Canapum e Sempre Verde. A unidade experimental foi constituída por 2dm3 de solo, dispostos em tubo de PVC com 25cm de altura,10cm de diâmetro e duas plantas de feijão. Os tubos foram confeccionados por meio da junção de 5 anéis com 5 cm cada, sendo que no anel inferior foi colocada uma placa delgada de isopor para permitir a acomodação do solo. Aos 40 dias após a emergência, as plantas foram coletadas, sendo determinada à produção de matéria seca das raízes e parte aérea. Os genótipos IT85D-3428-4-3-HP e UFRRGRÃO VERDE foram classificados como sendo de baixa tolerância, os genótipos USA, BRS-Mazagão, IT85D-3428-4-R2,4-HM e Sempre Verde, medianamente tolerantes e os genótipos Apiaú, Hikari Graúdo, Pretinho Precoce 1 e Canapum, tolerantes à acidez.= This research was carried out objecting to identify the sensibility of cowpea (Vigna unguiculata (L Walp genotypes to acidity conditions. The experiment was installed in a greenhouse located at Campus of Cauamé (Universidade Federal de Roraima in an oxisol of Roraima State (Brazil. The experimental design adopted was a completely andomized blocks in a factorial scheme 2 x 5 x 10 with three replicates. The terms of this factorial

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

  9. FY 1974 report on the results of the Sunshine Project. Study on a system to refine/transport/store hydrogen and the safety technology (Investigational study of the measuring control system for safety in the stage of low temperature storage and refining of hydrogen); 1974 nendo suiso no seisei, yuso, chozo system oyobi hoan gijutsu ni kansuru kenkyu seika hokokusho. Suiso no teion chozo, seisei dankai no anzen no tame no keisoku seigyo system ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1975-05-30

    Safety technology is necessary and indispensable for future materialization of a hydrogen energy system. The survey was made from a viewpoint of safety technology in refining hydrogen at low temperature and in storing it in a low temperature liquid state. Japan has so far had no experiences for the handling and consumption of liquid hydrogen except the partial use at laboratory. Accordingly, collected here was literature on the storage, transportation, handling, low temperature refining of the liquid, etc. The present state of technology in Japan and abroad was grasped and items in the safety relation were picked up. As to the existing literature on the hydrogen relation, there is much literature on the U.S. NASA project, and there is also much on practical business details such as the handling of a large quantity of liquid. Therefore, from each literature mostly on the above, the literature on the liquid storage, transportation use storage tank and refining method was reviewed and arranged, and at the same time, the items were picked up of the safe disposal method, disaster prevention relation, and measuring relation. The paper also arranged the results of surveying hydrogen physical properties and equipment materials which are closely related to safety general, in particular, and examples of disaster. (NEDO)

  10. Achievement report on research and development in the Sunshine Project in fiscal 1976. Researches related to hydrogen refining, transporting and storing systems, and safety assurance technologies (Surveys and researches on low-temperature storage of hydrogen, and measurement and control systems for safety in refining stage); 1976 nendo suiso no seisei, yuso, chozo system oyobi hoan gijutsu ni kansuru kenkyu seika hokokusho. Suiso no teion chozo, seisei dankai no anzen no tame no keisoku seigyo system ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1977-03-01

    This paper discusses low-temperature storage of hydrogen, and safety in the refining stage thereof. Discussions were given on a device to discharge safely hydrogen evaporated from a liquefied hydrogen storing tank rolly. A testing equipment of a 1/10 size of a full size equipment was fabricated on a trial basis. The equipment was used to test discharging a gaseous mixture containing hydrogen at concentration of about 2%, while air is being supplied from a blower directly connected to a gas motor (rotating on gas pressure) with treatment rate of 15 Nm{sup 3}/h. In order to keep the hydrogen concentration below the lower explosion limit of 4%, uniformity in the spatial distribution of the concentration is important. Full consideration should be given thereto in future designing works. With a cryogenic adsorption refining device for hydrogen, oxygen content is adsorbed, and hydrogen is refined. During regeneration of the adsorption device, oxygen is discharged. Experiments on regeneration methods were performed for comparing and discussing oxygen discharge behavior by using three systems: nitrogen purge, hydrogen purge, and temperature raising. Cases were found in which oxygen concentration in the exhaust gas exceeds the lower explosion limit of 4%. There is a number of important assignments to assure safety, including specific measures to prevent the above excess, reciprocal influence of multiple impurities, and removal of ignition sources. The present experiments have great significance in providing fundamental items of information. (NEDO)

  11. 1998 report on results of R and D project for industrial science and technology (R and D for technologies of producing innovative high performance material) (development of technologies for structural control material). R and D for high stimuli-responsive material; 1998 nendo dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (kozo seigyo zairyo gijutsu kaihatsu) kodo shigeki oto zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

  12. Fiscal 1997 project on the R and D of industrial scientific technology under consignment from NEDO. Report on the results of the R and D of technologies to invent original high-functional materials (development of precise structure control materials for enhancement of oil refining); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (sekiyu seisei kodoka seimitsu kozo seigyo zairyo kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-05-01

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

  14. Fiscal 1975 Sunshine Project research report. Research on refining, transport and storage systems for hydrogen, and their safety technologies (Research on measurement/control system for safety management in low-temperature storage and refining processes of hydrogen); 1975 nendo suiso no seisei, yuso, chozo system oyobi hoan gijutsu ni kansuru kenkyu seika hokokusho. Suiso no teion chozo, seisei dankai no anzen no tame no keisoku seigyo system ni kansuru kenkyu chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1976-05-28

    The following were selected as themes necessary and important for the safety of the forthcoming hydrogen energy system, based on the fiscal 1974 document survey result, and the fiscal 1975 research results. First as for low- temperature storage of hydrogen, since safe discharge of hydrogen gas generated in a storage tank is important, gas motor discharging usually used for such transport tanks as tank lorry, and burn bond discharging suitable for discharge of a large amount of hydrogen were selected as test items. Next as for storage and transport of low-temperature hydrogen such as liquid hydrogen, a low-temperature control valve to control the amount of liquid hydrogen for transport was selected as a test item. Under the assumption of the model tests on the above 3 items in fiscal 1976, various studies and trial designs were made on concrete test equipment. The test plans were also prepared for some ones among them. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

  16. Musical and poetic creativity and epilepsy.

    Science.gov (United States)

    Hesdorffer, Dale C; Trimble, Michael

    2016-04-01

    Associations between epilepsy and musical or poetic composition have received little attention. We reviewed the literature on links between poetic and musical skills and epilepsy, limiting this to the Western canon. While several composers were said to have had epilepsy, John Hughes concluded that none of the major classical composers thought to have had epilepsy actually had it. The only composer with epilepsy that we could find was the contemporary composer, Hikari Oe, who has autism and developed epilepsy at age 15years. In his childhood years, his mother found that he had an ability to identify bird sound and keys of songs and began teaching him piano. Hikari is able to compose in his head when his seizures are not severe, but when his seizures worsen, his creativity is lost. Music critics have commented on the simplicity of his musical composition and its monotonous sound. Our failure to find evidence of musical composers with epilepsy finds parallels with poetry where there are virtually no established poets with epilepsy. Those with seizures include Lord George Byron in the setting of terminal illness, Algernon Swinburne who had alcohol-related seizures, Charles Lloyd who had seizures and psychosis, Edward Lear who had childhood onset seizures, and Vachel Lindsay. The possibility that Emily Dickinson had epilepsy is also discussed. It has not been possible to identify great talents with epilepsy who excel in poetic or musical composition. There are few published poets with epilepsy and no great composers. Why is this? Similarities between music and poetry include meter, tone, stress, rhythm, and form, and much poetry is sung with music. It is likely that great musical and poetic compositions demand a greater degree of concentration and memory than is possible in epilepsy, resulting in problems retaining a musical and mathematical structure over time. The lack of association between recognizable neuropsychiatric disorders and these skills is a gateway to

  17. Fiscal 1997 project on the R and D of industrial scientific technology under consignment form NEDO. Report on the results of the R and D of technologies to invent original high-functional materials (technical development of structure control materials / R and D of molecular harmonized materials); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (kozo seigyo zairyo gijutsu kaihatsu) bunshi kyocho zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

  18. Fiscal 1997 project on the R and D of industrial scientific technology under consignment from NEDO. Report on the results of the R and D of technologies to invent original high-functional materials (technical development of structure control materials / R and D of multi-stimuli-responsive materials); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (kozo seigyo zairyo gijutsu kaihatsu) kodo shigeki oto zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

  19. Fighting Mothers, Suffering Mothers: Wartime Mixed Media and Postwar Female Cinematic Icons

    Directory of Open Access Journals (Sweden)

    Kyu Hyun Kim

    2018-03-01

    Full Text Available Hikari Hori. Promiscuous Media: Film and Visual Culture in Imperial Japan, 1926-1945. Ithaca, NY: Cornell University Press, 2018. 312 pp. $55 (cloth. Jennifer Coates. Making Icons: Repetition and the Female Image in Japanese Cinema, 1945-1964. Hong Kong: Hong Kong University Press, 2017. 244 pages. $65 (cloth. Hori’s analyses and interpretations of the key visual/filmic texts are absolutely riveting and powerfully stimulating, compelling us to seek out the media works in question and reevaluate their meanings with our own eyes. Coates’s sweeping readings are also extremely impressive in their propensity to bring together interdisciplinary insights from sometimes surprising sources, raising some difficult questions about how we have hitherto treated with complacency (and substantively ignored the centrality of women in postwar Japanese cinema. With these new publications, these two scholars have made significant contributions to advancing our understanding of wartime and immediate postwar Japanese culture. Their books should be considered must-reads for any serious student of twentieth-century Japanese cinema and popular culture...

  20. <原著>日本人に多く見いだされるヘモグロビン変異体

    OpenAIRE

    原野, 恵子

    1991-01-01

    今日までに約160種のヘモグロビン変異体が日本人に発見されている.それらのうち次の10種の変異体, HbKokura, HbUbe2,HbMIwate, HbJCapeTown, HbHamadan, HbHikari, HbGSzuhu, HbKoln, HbRiyadh, HbTakamatsu, は各地でしばしば見いだされる.日本人にはアメリカやアフリカの黒人にみられるHbS, HbC, 中国人や東南アジア人にみられるHbEのように高頻度に発見されるものはなかった.ヘモグロビン変異体が存在するとHb Aic測定におけるHPLC分画パターンを妨害することがあるので注意しなければならない....

  1. Radiation education in elementary school

    International Nuclear Information System (INIS)

    Harima, Yoshiko; Matsuda, Teruo; Ootake, Shigehiro; Ikeda, Masamichi

    1999-01-01

    Lessons to measure natural radiation have been given at the fourth elementary school of Hikari-gaoka, Nerima-ku, Tokyo, for three years. The Method of Lessons: After hearing a brief explanation about natural radiation and usage of a simple instrument of gamma ray named 'Hakaru-kun' by a lecturer (Fig. 1), every child participates to measure dose rate at several measured points within the range of school campus (Figs. 5 - 14). They calculate the average value of measured dose rate (Fig. 2) and affix tags written the average value (Fig. 3). In addition, by looking at the photographs, through the imaging plate, of radiations released from vegetables and pork, they are surprised at the fact that all the food have such activities. Finally, they watch marks of alpha particles released from the ore of samarskite in a cloud chamber. The alpha particles fly in alcohol vapor over saturated cooled with dry ice (Fig. 15). They express their impression of lesson for finding out the existence of natural radiation in their reports. (Table 1 and Fig. 4). (author)