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Sample records for nanometa seigyo hikari

  1. 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)

  2. 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)

  3. 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.

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

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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)

  5. 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.

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

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    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.

  7. Ship motion control system; Sentai shisei seigyo

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    Yamaga, H. [Mitsui Shipbuilding and Engineering Co. Ltd., Tokyo (Japan)

    1998-09-15

    Techno-super-liner is a large object combining with catamaran in application of an amphibious principle of a hover craft, called as the air pressure type complex support from (TSL-A form). In this paper, the driving device in the ship motion control system (RCS), equipped with `HISYO` developed as an experimental ship of TSL-A 70m type in the marine area, was mainly introduced. This RCS was a motion control system for a propose to reduce swing of a ship body when high speed navigation in the opening sea, this structural device consisted of the control calculation device, the swing detection device, the operation monitoring device, the underwater fin flip driving device, the lopper driving device, and the hydraulic power unit. As investigation results on the effectiveness of RCS in the HISYO through the marine experiments and general experiments, it was proved that the expected effect was obtained, high speed navigation was possible in a worse weather. 1 figs., 4 tabs.

  8. 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.

  9. Compliance control for machines and robots; Kikai no yawarakai seigyo

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    Tanie, K. [Mechanical Engineering Lab., Tsukuba, Ibaraki (Japan); Hayashibara, Y. [Univ. of Tsukuba, Tsukuba (Japan). Graduate School

    1995-04-10

    Softness is required for machines equipped to some extent with intelligence by virtue of advancement of computer science so that they live friendly, contact safely and communicate softly with human. The softness of machines is determined by impedance parameters such as inertia, viscosity, rigidity and so on. The technology to control these parameters positively is presumed to be an elemental technology to control machine softness. The present status of this technology is introduced by taking a field of robots as an example and developmental tasks of soft machines to live friendly with human is reviewed. A system of one degree of freedom is explained as a basic procedure to modulate impedance of machine systems, being extended to robot arms with plural joints. Next, a method for controlling arm rigidity of robots (direct compliance control) is explained, wherein actuators of each joint working in accordance with dislocation of apexes of Robot arms are conceived not as an apparatus to yield power, but as an independent apparatus to yield spring effects. 19 refs., 9 figs.

  10. Walking control of a biped robot by impedance control; Impedance seigyo ni yoru nisoku hoko robot no hoko seigyo

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    Sorao, K.; Murakami, T.; Onishi, K. [Keio Univ., Tokyo (Japan)

    1997-09-20

    In this paper, a robust impedance control scheme is used to control a biped locomotion in saggital plane. In particular, the torque observer is introduced and external-force feedback is achieved without force sensor. By the reaction force feedback, the stability of the biped robot increase at the contact of the swing leg and the arbitral impedance control is realized without force sensor. The walking trajectory reference is created from the virtual inverse pendulum model. Simulation and experimental results also show that the effect of the collision between biped leg and the ground is eased and by the proposed control method, the biped robot recover more quickly than the traditional robust position control. 10 refs., 15 figs., 1 tab.

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

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    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)

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

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    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)

  13. Adaptive control in an aircraft propulsion system and system integration with flight control; Kokukiyo enigne - tekio seigyo gijutsu oyobi hiko seigyo tono togo

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    Nagatome, S.; Seo, N.; Negoro, T.; Kaneda, S.; Matsushita, T.; Kono, Y.; Kanbe, K.; Fujiwara, K. [Kawasaki Heavy Industries, Ltd., Kobe (Japan)

    2000-04-01

    Aircraft engine controllers incorporating computer technology have enabled the highly automated control of the entire engine system, and consequently have been put to practical use as Full-Authority Digital Electronic Control (FADEC). In future such FADEC technology will be evolved and combined into an Integrated Flight and Propulsion Control (IFPC) system which will automatically optimize the whole aircraft propulsion system. In this paper the application of the adaptive control, part of the IFPC technology, is described. (author)

  14. 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.

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

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    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)

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

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    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.

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

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    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.

  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. Biped locomotion control with compliance; Compliance wo mochiita nisoku soko robot no undo seigyo

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    Kawaji, S.; Ogasawara, K.; Iimori, J. [Kumamoto University, Kumamoto (Japan)

    1995-12-20

    Realization of stable walking motion of biped locomotive robot is one of difficult control problems, but it is very interesting both theoretically and practically from the view point of motion control. The authors have already reported that the locomotion rhythm plays an important role in walking motions, and confirmed experimentally that the control method based on the locomotion rhythm is effective. But, many uncertainties, e.g., the changes of robot dynamics and the interaction between the robot and the floor, may make the locomotion rhythm irregular. In this paper, we introduce the compliance into the control system in order to modify the original reference locomotion rhythm for stable walking under the existence of the uncertainties. Concretely a compliance control system for the contact leg is designed to modify the rhythm by changing the posture of the leg corresponding to the force acting from the body so that the robot may keep the equilibrium state dynamically. Finally the simulation results are given to illustrate the effectiveness of the proposed compliance control system. 21 refs., 12 figs., 3 tabs.

  20. 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.

  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

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    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. UV inactivation and photoreactivation of enteropathogenic Escherichia coli; Geri gen sei daichokin no shigaisen ni yoru fukatsuka to hikari kaifuku

    Energy Technology Data Exchange (ETDEWEB)

    Tosa, K.; Hirata, T.; Chikuma, D.; Fukuyama, M. [Azabu Univ., Tokyo (Japan); Furuhata, K. [Tokyo Metropolitan Research Lab of Public Health (Japan)

    1997-09-10

    UV inactivation and photoreactivation of 14 strains of enteropathogenic Escherichia coli were investigated. The doses of UV light required for 90% and 99% inactivation of pathogenic Escherichia coli ranged from 0.1 to 7.1mW{center_dot}sec{center_dot}cm{sup -2} and from 0.2 to 9.8mWcentre dotsec{center_dot}cm{sup -2}, respectively. Photoreactivation with visible light was observed in O26 (FK10, FK11), enteroinvasive (EIEC) O124 and O152, enteropathogenic (EPEC) O55, and enterotoxicogenic (ETEC) O6, O25 (FK20), and O25 (FK21) Escherichia coli. No photoreactivation was observed in enterohemorrhagic Escherichia coli O157:H7, EIEC O167, EPEC O44, O142, O127, and ETEC O6:H16. Entreopathogenic Escherichia coli which has photoreactivation property showed only about 1.5 to 4 log inactivation by UV light even after photo reactivation. 16 refs., 9 figs., 2 tabs.

  3. 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.

  4. Technologies to apply optic fibers to an underground cable system; Chichu cable system eno hikari fiber oyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-11-10

    Discussions were given for the purpose of realizing automation of facility operation and automatic monitoring of facilities by using optical electronics technologies in underground power transmission facilities. In sensing technologies using optic fibers, an optic fiber distribution type sensor was found suitable for monitoring underground power transmission lines as a sensor to measure temperature distribution and pressure distribution along the optic fibers. In sensor signal transmission technologies using optic fibers, laying ultra-high voltage transmission lines over a distance of several ten kilometers is becoming used generally in underground transmission paths, with the environmental requirements on electromagnetic fields becoming more stringent. Under these restraints, an optical transmission system is more advantageous that has longer-distance and wider-area transmission capabilities, and high-insulation and non-induction performances. In technologies to lay optic fiber cables in underground cable paths, contrivances are given on the cable construction for cases where optic fibers and power cables, each varying in mechanical strength are to be integrated. 151 refs., 155 figs., 30 tabs.

  5. 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.

  6. 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.

  7. New controller design technique using finite integral transforms; Yugen sekibun henkan tono deai to seigyo kei sekkei eno oyo

    Energy Technology Data Exchange (ETDEWEB)

    Matsumoto, S. [Tohoku Univ., Sendai (Japan)

    2000-03-05

    The author had doubt about the method of designing controller system baste degraded models converted from physical models by using differential approximation when he considered controller of temperature distribution in 1984. He considered that controlling models could be use without accuracy degradation of physical models at least. He knew that Laplace transform and Fourier transform and so on are integral transformers, and that transformers being finite integral range were finite integral transformers. After that, adopting finite integral transformers to the control problem of axial temperature distribution in absorbing tower having migration layers, and agreeing prediction by simulation with results of experiments, he came to think control of distribution constant system in earnest as a theme of research. Especially, optimum arrangement problem of sensors and operating ends being characteristic problems in control of distribution constant system could be modeled and solved simply by performing this approach. (NEDO)

  8. 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.

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. 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)

  14. 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.

  15. 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)

  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. 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)

  18. 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)

  19. 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.

  20. 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.

  1. 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.

  2. 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)

  3. 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)

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  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. 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)

  12. Standardizing activities of inductive charger and its interactive communication system with electric vehicle; Inductive judenki no hyojunka no nagare to sharyo tono sogo seigyo ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Kurozu, T.; Ikeda, T.; Fukuda, M. [Nissan Motor Co. Ltd., Tokyo (Japan)

    2000-01-01

    The paper described the flow of the standardization for EV use charge system and the inter-control with vehicles. Charge systems now used on the market are the inductive charge system and conductive charge system. The inductive charge system has no mechanical touches and is excellent in durability because the electromagnetic induction is used to the portion of power transmission. As to the standardization of the inductive charge system, it was found out that the construction of the world standards in the electric-wave use system is difficult, and the optical communication system was studied. At present, the work for revision has been proceeded with of the standards for the charge paddle (optical communication interface is adopted) which was reduced in size by about 40% of the conventional one. This charge paddle was made public at EVS15 in September 1998, and is being developed jointly with GM-Toyota. Around November 1999, the standards are expected to be formally revised. For the power control of the charger, the controller on the vehicle side transmits power request values. The rise in power request value is limited, so that the rapid power increase is avoided. (NEDO)

  13. 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.

  14. Operating state distinction and operation control methods of the fuel cell stack; Nenryo denchi sutakku no unten jotai hanbetsu hoho oyobi unten seigyo hoho

    Energy Technology Data Exchange (ETDEWEB)

    Ueno, M.; Nakajima, H.; Shiraishi, K. [Equosu Resarch Co. Ltd., Tokyo (Japan)

    1997-09-19

    In the operation of the fuel cell stack, output decrease is caused by surplus or deficient water content in part or whole of the fuel cell stack. The purpose of the invention is to provide operating state distinction and operation control methods, whereby the output abnormality is discovered in the early stage, and is quickly adjusted to the normal state. In accordance with the invention, time course voltage patterns of the cell block, composed of one or plural unit cells in the fuel cell stack that has solid oxide films as electrolytes, are classified by various operation conditions of the fuel cell, and stored in the memory in advance. Time course voltage patterns are measured by one unit cell or by the cell block; operation conditions are judged, compared and calculated while the measured time course voltage patterns and the patterns in the memory are compared; proper setting of operation conditions is selected; and command for adjusting to the setting is delivered to the unit cell or cell block in the fuel cell stack. 6 figs.

  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. 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.

  17. 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.

  18. 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.

  19. Proposal of control system of surface brightness of rolled sheet in cold rolling. Reikan atsuen ni okeru ita hyomen kotaku no seigyo system no teian

    Energy Technology Data Exchange (ETDEWEB)

    Azushima, A.; Iyanagi, Y.; Degawa, H.; Noro, K. (Yokohama National Univ., Yokohama, (Japan). Faculty of Engineering Daido Chemical Industry Co. Ltd., Tokyo, (Japan))

    1990-04-01

    The relation was systematically examined between the surface quality of a rolled sheet in cold rolling and tribological factors (rolling speed, reduction, viscosity of lubricant, surface roughnesses of a roll and sheet). In the case where the surface roughnesses of rolls and sheets were smooth, the surface brightness decreased with an increase in rolling speed and viscosity, resulting in rough surfaces. The dependence of the rolling speed, viscosity and roughness on the brightness was equal to that on an oil film thickness, and the brightness of rolled sheets could be thus expressed as the function of only the oil film thickness. In the case those were rough, the roughness had a great influence on the surface quality of rolled sheets, and the brightness could be expressed as the function of the oil film thickness and roughnesses of rolls and sheets before rolling. Based on these relations, the system was proposed capable of estimating and controlling the brightness of rolled sheets from/by conditions before rolling. 13 refs., 16 figs., 1 tab.

  20. Posture control with a neural network of a diagnostic robot manipulator; Neural network ni yoru haikan shindan robot manipulator no shisei seigyo

    Energy Technology Data Exchange (ETDEWEB)

    Abe, Y. [Shinryo Corp., Tokyo (Japan); Hara, F.; Hosokai, H.; Kojima, T. [Science University of Tokyo, Tokyo (Japan)

    1997-09-25

    A robot manipulator has been investigated, by which non-destructive diagnostic tests of a pipe-line can be automatically conducted. This robot manipulator has five degrees of freedom, and can set up an ultrasonic probe for diagnosis attached at the surface of pipe at various angles and with various forces. The manipulator is controlled through the feedback of variation of reflected ultrasonic wave with the contact force of probe. Using a neural network, the manipulator can smoothly shift its posture in the optimum sensing state from the initial posture. For the measuring experiment using a pipe, the posture control and the force control were evaluated. The posture control error was around 0.4 degree. The target allowable error 0.5 degree was achieved. For the force control, it was demonstrated that the follow-up property of contact force to the target value can be enhanced by increasing the intermediate posture number. 3 refs., 13 figs.

  1. 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.

  2. Cultivation of spirulina platensis and its growth behavior controlling cultivation medium; Baiyoeki sosei no seigyo ni yoru spirulina platensis no baiyo oyobi sono zoshoku kyodo

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, K.; Fujita, K. [Babcock-Hitachi K.K., Tokyo (Japan)

    1996-01-20

    Cultivation of Spirulina platensis while controlling pH and nitrate ion in the culture medium was investigated in order to obtain a high density culture. In the cultivation of Spirulina platensis using sodium bicarbonate as a carbon source, the pH value increased during growth of Spirulina, and then the growth stopped at a pH value of more than 12. The cell concentration reached 2.2g/l by maintaining a pH range of 8.5 to 10.0 using CO2 gas without controlling the nitrate ion concentration. By controlling the pH and adding nitrate to a concentration of 2.0g/l, the cell concentration reached 4.2g/l at 350 hours. It was found that the cell concentration was about four times that of the culture without controlling pH and nitrate. 4 refs., 6 figs.

  3. 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)

  4. 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.

  5. Study on biped bike. Analysis and control of sagittal plane motion; Biped bike ni kansuru kenkyu. Yajomen undo no kaiseki to seigyo

    Energy Technology Data Exchange (ETDEWEB)

    Minakata, H. [Chiba Institute of Technology, Chiba (Japan); Hori, Y. [The University of Tokyo, Tokyo (Japan)

    1997-08-20

    We propose a biped locomotion system that its gait is changeable in real-time. Our targets are; artificial leg, slave machine, remote-brain home-robot, etc. Our dream is to develop new transportation tool that rider can control its gait. We call this imagination as `Biped Bike.` In this paper, we discuss the way of real-time gait control of biped locomotion. We propose Virtual Inverted Pendulum (VIP) Method for controlling the walking speed. This method considers the continuity of biped walking especially on transient status such as acceleration and deceleration. The actual biped system is made and real-time gait control is realized using VIP method. 8 refs., 14 figs., 1 tab.

  6. 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.

  7. 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.

  8. 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.

  9. Recent advances in studies on photosynthetic microorganisms and photobioreactors. ; Production of physiologically active substance (5-aminolevulinic acid) using photosynthetic bacteria. Hikari gosei biseibutsu no kino kaihatsu to foto baioriakuta. ; Hikari gosei saikin ni yoru seiri kassei busshitsu (5-aminoreburin san) no seisan

    Energy Technology Data Exchange (ETDEWEB)

    Sasaki, K. (The Hiroshima-Denki Inst. of Technology, Hiroshima (Japan)); Tanaka, T.; Hotta, K. (Cosmo Research Inst. Inc., Tokyo (Japan)); Nishio, N.; Nagai, S. (Hiroshima Univ. (Japan). Faculty of Engineering)

    1993-11-25

    Among photosynthetic bacteria, purple non-sulfurous bacteria can be multiplicated under anaerobic bright and aerobic dark conditions, and the speed of multiplication is relatively high. These bacteria contain much proteins, vitamins and dyes, and are useful as SCPs. The authors have found a phenomenon that Rhodobacter sphaeroides, a species of purple non-sulfur bacteria, egests 5-aminolevulinic acid (ALA) when levulinic acid (LA), a tetrapyrrole biosynthesis inhibitor, is added to the culture medium, ALAs are known as tetrapyrrole compounds such as chlorophyll and vitamin B12. ALA has various physiological activities against plants, but has not been mass-produced because its chemical synthesis is not easy. In this article, production of ALA using photosynthetic R. sphaeroides, which is said to have a relatively high ARA synthesis activity, is described. 14 refs., 4 figs.

  10. 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.

  11. 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)

  12. 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)

  13. 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.

  14. 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.

  15. 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)

  16. 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)

  17. 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)

  18. 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)

  19. Achievement report for fiscal 2000 on the fundamental research on functional sectional imaging system using optical interference; 2000 nendo hikari kansho riyo kokino danso gazo sokutei sytsem ni kansuru kiban kenkyu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-05-16

    This project promotes the fundamental research on the conventional OCT technology to make it applicable to wider clinical applications of diagnoses and therapies by greatly improving the technology in view of higher spatial resolution, smaller size, and functional diversification. The research is supported by the medical and engineering cooperative research that utilizes the medical and engineering knowledge. Furthermore, as the fundamental technologies for the next generation, the sectional image measuring technology is established that makes possible to measure the three-dimensional flow and movement such as blood flow distribution in very small blood vessels, and performs the basic research on high-speed sectional image measurement to measure moving images of sectional images. The research contents for the current fiscal year may be summarized as follows: in the research on a small integrated optical element to make diagnostic application possible for skin cancers, retinal detachment, and cataract, research on trial production of a small OCT has been performed, and research on high spatial resolution has been implemented; furthermore, research was carried out on an endoscope integrated type OCT system intended of textural diagnoses of gastric cancer, hemorrhoidal cancer, and colic cancer, and on a sectional image measuring system intended of extracting biochemical information, and on a high-precision absorptive spectrum measuring technology for biogenic structures. (NEDO)

  20. 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)

  1. 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)

  2. 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)

  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. 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.

  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. 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)

  7. 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)

  8. 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.

  9. 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.

  10. Wide area monitoring and controlling system for Sapporo Highway Facilities Control Center of the Japan Highway Public Corporation; Nihon Doro Kodan Sapporo shisetsu chuokyoku muke koiki kanshi seigyo system

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-10

    As part of deliveries to the government offices, Meidensha supplied a system for monitoring and controlling all facilities in a wide area such as interchanges and tunnels on expressways in Hokkaido. The man-machine part consists of four CRT`s and two large displays. In case of a fire in a tunnel or a failure in equipment, the system automatically displays in an interlocking manner a related screen assigned to each man-machine, indicating also a corresponding guidance as assistance for the operator. Each supervisory office is connected to the Facilities Control Center through Intranet and is able to read information collected by the Control Center through browser. At the time of inspection of each equipment, the inspection data is automatically reported to the Control Center by connecting a handy terminal to the telephone line of each facility electric room, thereby contributing to the reduction of the burden of a Control Center operator. (NEDO)

  11. 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)

  12. 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)

  13. 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)

  14. 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)

  15. 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)

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

    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)

  17. 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.

  18. FY1995 preparation of magnetic films with nano size magnetic domain structure and application for magnetic recording media with ultra-high density; 1995 nendo nano jiku seigyo jisei usumaku no sosei to chokomitsudo jiki kiroku media eno oyo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    It is required to control microstructure and micro magnetic behavior in Co-Cr based alloy thin films strictly in order to apply these thin films to the ultra high density magnetic recording media. In this study, thin film deposition technology to control nano-metric micro-structure and micro magnetic properties, especially in the distribution through thickness direction, were examined. Furthermore, to develop some evaluation technique to determine such local distribution of magnetic properties was one of the purpose of this study. The relationship between c-axis orientation of crystallites and distribution of the perpendicular coercivity H{sub c} in Co-Cr films has been investigated through the evaluation of the the H{sub c} of surface layer H{sub c}(s) measured by Kerr hysteresis loop tracer. Better c-axis orientation, higher Cr content and addition of Ta seemed to be essential requirements to get higher H{sub c} of initial growth layer H{sub c}(i) and good uniformity of H{sub c}. Lower {delta}H{sub c} caused better recording characteristics and lower media noise level. It has been clarified that the homogeneity of the magnetic properties in the film and c-axis orientation in the initial layer of the films were the essential factors to deposit low noise and high performance recording media. (NEDO)

  19. Method of speed sensorless direct field oriented control based on flux observer for current source inverter drive induction machine; Denryugata inverter kudo yudoki no niji jisoku observer ni motozuku sokudo sensorless chokusetsugata vector seigyo no ichihoshiki

    Energy Technology Data Exchange (ETDEWEB)

    Kasa, N.; Karino, T.; Watanabe, H. [Tokyo Metropolitan Institute of Technology, Tokyo (Japan)

    1995-12-20

    Many sensorless vector control systems have been proposed to increase the reliability and to reduce costs of the systems. However the parameters of an induction machine are changed by the temperature, the estimated speed may be incorrect value. When a constant torque drive system is constructed by a sensorless system and a current source inverter (CSI), the accuracy of the estimated speed influenced directly the response of the torque. In this paper, a direct field oriented control system is constructed by the flux observer which is low sensitivity to the rotor resistance variation and a proposed speed estimation scheme in a torque control system driven by a CSI. We compared experimental results by a voltage source inverter system and by the CSI system which is adopted our sensorless vector control scheme. At a lower speed condition, the system identifies the stator resistance, and we can estimate rotor speed correctly. Then the CSI system drives stably the induction machine without the speed sensor in a lower speed condition, and it can be applied to the constant torque drive systems. 7 refs., 17 figs., 1 tab.

  20. Development of advanced transverse thickness profile control of thin hard steel strips at tandem cold rolling mill; Reikan tandem mill ni okeru nan`atsuenzai no koseido profile seigyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Hiruta, T.; Akagi, I.; Mizushima, N. [Kawasaki Steel Corp., Tokyo (Japan)

    1996-09-01

    This paper describes an advanced transverse thickness profile control method of thin hard steel strips at tandem cold rolling mill in the Mizushima Works of Kawasaki Steel Corporation. The work roll profile was optimized by the profile control of cold rolling using a one-side tapered work roll sifting method, to expand the profile control range in transverse direction of steel strip. Based on the data measured by the profile meter set at outlet of hot roll mill, the work roll sifting position can be controlled in response to the size of hot-rolled strip crown. A feed-forward edge drop control system and a feed-back edge control system using an edge drop sensor set at outlet of mill were established. Consequently, high thickness accuracy in transverse direction was achieved within 0.5% in a steady rolling state and within 0.8% in a non-steady rolling state over the full length of the thin hard steel strip product. 14 refs., 15 figs., 2 tabs.

  1. Control of a jet impinging on a wedge having a circular cylinder at the vertex. Mean flow and turbulence properties; Sentan enchu ni yoru kusabimen shototsu funryu no seigyo. Heikinryu to midare no tokusei

    Energy Technology Data Exchange (ETDEWEB)

    Yamada, H.; Matsuda, K. [Daido Institute of Technology, Nagoya (Japan); Nakamura, I. [Nagoya University, Nagoya (Japan). Faculty of Engineering

    1995-07-25

    An experimental study has been performed on the mean flow and turbulence properties of a two-dimensional jet impinging on a wedge having a circular cylinder with various diameters at the wedge vertex. The nondimensional profiles of the mean velocity in the fully developed flow region of the wall jet approach those of the conventional two-dimensional wall jet when a cylinder is attached to the wedge vertex and if the cylinder diameter is increased. Also both the slopes of the growth of the half-width and of the decay of the maximum velocity approach these of the two-dimensional case. The non-dimensional profiles of the turbulence intensities and of Reynolds stress in the fully developed flow region of the wall jet behave in the same manner, as mentioned above. In the variations along the wall of the integral value of the total production term of Reynolds stress, there exists the negative value region of it near the wedge vertex, and it extends as the cylinder diameter increases. 21 refs., 16 figs.

  2. 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.

  3. FY1995 fundamental studies on advanced control technologies for high speed high performance laser processing; 1995 nendo kosoku kokino laser kako no tame no senshin seigyo gijutsu no kiso kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Purpose of the work is to clarify the fundamental phenomena of laser welding, in particular the interaction of beam with plume and keyhole, keyhole dynamics in high speed welding, surface phenomena in laser soldering, defects formation mechanisms, and also to construct a mathematical model of laser welding based on the careful observation of phenomena with high temporal and spatial resolutions in order to establish the future monitoring and advanced control systems for the high efficient, accurate and functional and high speed laser processing. In this study have been clarified the spectroscopic characteristics and physical properties of laser induced plasma in laser welding, and defects formation mechanisms and their suppression methods which have been obtained by precise observation of dynamic behaviors of keyhole by the optical and X-ray methods with high temporal/spatial resolution. Also, mechanical properties of laser welded joints containing defects have been evaluated and the effect of porosity on static strength have been made clear by using the 2-directional X-ray imaging system during tensile test. Based on the above experimental results, a dynamic mathematical model of high speed laser welding was developed first in the world and the simulated results were qualitatively well coincided with the actual phenomena. Furthermore, wetting characteristics in laser micro-soldering, the metallurgical and thermal fatigue properties have been investigated, and revealed that laser soldering has much more excellent properties than the conventional processes. (NEDO)

  4. Dynamic gait control of biped robot based on kinematics and motion description in Cartesian space; Zettai zahyokei no dosa kijutsu to kinematics ni motozuita nisoku robot no dohoko seigyo no jitsugen

    Energy Technology Data Exchange (ETDEWEB)

    Majima, K.; Miyazaki, T.; Oishi, K. [Nagaoka Univ. of Technology., Niigata (Japan)

    1997-10-20

    This paper proposes a new dynamic gait control method of biped robot based on robust joint servo control. The method consists of two subjects. The first subject is the approximation of biped robot to the inverted pendulum for sagittal plane and lateral plane. The second subject is the constitution of dynamic gait control based on robust joint servo control and kinematics. The motion description in Cartesian space is determined from the motion of the inverted pendulum for sagittal plane and lateral plane. Suitability of the biped motion reference is confirmed by distribution of ZMP (Zero Moment Point). Using the inverse kinematics of biped robot, the biped motion references in Cartesian space is transformed to the position references in joint space. In joint space, the robust position control system consists of two-degrees-of-freedom control system based on coprime factorization and disturbance observer. Since the robust joint servo control system compensates the inertia variation and disturbance torque on dynamic gait control, this control system is suitable for the dynamic gait control of biped robot. The validity of the proposed method is confirmed by the experimental results. 15 refs., 11 figs., 2 tabs.

  5. 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.

  6. Study on the convergence of the interpolation point augmentation method for L1, {Eta}{sub {infinity}} control problems; Hokan ten kakudaiho no Brit pounds1 , {Eta}{sub {infinity}} seigyo mondai deno shusoku sei ni kansuru kosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Ohta, Y. [Osaka Univ. (Japan). Faculty of Engineering] Gotou, O. [Sumitomo Metal Industries, Co. Ltd., Osaka (Japan)

    1997-08-31

    Interpolation point augmentation method has expanded the delay expansion method by dealing with not only each property of space but dealing with the property of broad weak topology and has provided the solution of multiblock continuous time L1. If the expansion block is formed to have unstable zero time it may not be limited by the delay of dispersion time like in delay expansion method because convergence is achieved from the property of weak topology partial space. Further, from the property of weak topology, it was possible to get optimum solution when applied to {Eta}{sub {infinity}} control problem. As for the application of interpolation point augmentation method, there are some problems regarding the convergence that are still to be solved. One of this problem is that the meaning of formation of expansion block is not clear and its relation with the existing theory is not sufficiently solved. Another problem is that the quasi-optimization when expansion is stopped on the way is not assured because the weak convergence is weaker than the norm convergence. In this report, all these points are discussed. 9 refs., 1 tab.

  7. QTL Information Table: 1051 [Q-TARO

    Lifescience Database Archive (English)

    Full Text Available hikari x Kasalath) Koshihikari A RM8084 RM6827 jsa 蛯谷武志, 山本良孝, 矢野昌裕, and 舟根政治. (2008). 染色体断片置換系統群を利用したイネの玄米外観品質に関与するQTLの検出. 育種学研究 10, 91-99. ...

  8. 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.

  9. 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

  10. 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)

  11. 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)

  12. 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)

  13. 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)

  14. 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.

  15. 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)

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-12-31

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

  17. 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.

  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. 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.

  20. 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.

  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. 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)

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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)

  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. 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.

  10. 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

  11. 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.

  12. Biotechnology of Tohoku Electric Power Co. Application of plant biotechnology/Biomass utilization/Development of technology to control cold resistance of plant/Practical application of passion fruit growing technology/Identification of useful genes of plant/Light supplement growing of rose/Electric stimulus growing of shiitake mushroom,etc; Tohoku Denryoku no biotechnology. Shokubutsu biotechnology oyo, biomass riyo, shokubutsu no taireisei seigyo gijutsu kaihatsu, passion fruit saibai gijutsu no jitsuyoka, shokubutsu no yuyo idenshi dotei, bara no hoko saibai, shiitake denki shigeki saibai gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-10-01

    The paper introduced the biotechnology study in Tohoku Electric Power Co. in terms of the above-captioned items. In the study of the plant biotechnology application, with garlic growing as a target, technology to increase seedlings in large quantity by texture cultivation technology was studied. In the biomass utilization study, as to one of the biomass crops, its economical efficiency was studied in case of using it as energy. In the development of the technology to control cold resistance of plant, genes of Superoxide dismutase, etc. were introduced to rice plant to obtain a result which indicates enhancement of cold resistance. In the development of the technology to grow passion fruit, a method was established to grow a tropical fruit, passion fruit produced in Brazil, without heating in winter and to enable two harvests a year, for the contribution to the regional activation. In the study on the identification of useful genes of plant, the development of DNA markers was conducted, trying the identification of a rice blight true resistance gene, Pi-Z{sup t}. 32 figs., 2 tabs.

  13. 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.

  14. 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

  15. OE KENZABURO’NUN KENDİ AĞACIMIN ALTINDA ADLI ESERİNDE JAPON KÜLTÜR TARİH VE TOPLUM ÖĞELERİ

    OpenAIRE

    Erdemir, Ali Volkan

    2012-01-01

    1994 yılında Nobel Edebiyat Ödülü’nü alan Japon yazar Oe Kenzaburo, yapıtlarını doğuştan zihinsel engelli oğlu Hikari için yazdığını ve artık onu ifade etme çabasını başarıyla tamamladığını belirtmiştir. Oe bundan sonra arkadaşı dünyaca ünlü Japon orchestra şefi Ozawa Seiji ile aynı amaç için gayret edecektir: Geleceğin büyüklerine eğitim vermek. Kendi Ağacımın Altında (2001) bu amaca hizmet için yazdığı kitaplarından biridir. Kitabın “Çocuklar Neden Okula Gitmelidir?” kısmında Oe, İkin...

  16. <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....