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Sample records for suichuyokutsuki kosoku sodotei

  1. On the wave induced responses for a high-speed hydrofoil catamaran. Part 2. Cabin connected to hull by spring and response to vibration; Suichuyokutsuki kosoku sodotei no harochu oto ni tsuite. 2. Dokuritsu kozogata cabin to yodo oto

    Energy Technology Data Exchange (ETDEWEB)

    Nobukawa, H; Kitamura, M; Kawamura, T [Hiroshima University, Hiroshima (Japan). Faculty of Engineering

    1996-04-10

    A high-speed hydrofoil catamaran under development has such a structure that an independent cabin is mounted on catamaran hulls, the cabin is connected with the hulls by using four soft springs, and hydrofoils are attached to the front and rear of the cabin. The structural design conception was as follows: the self-weight of the cabin is supported by lifting power of the hydrofoils while the boat is cruising; longitudinal motions of the catamaran hulls are absorbed by soft spring struts to make the motions more difficult to be transmitted into the cabin; and vibration excited by engines rotating at high speeds, attached to rear of the catamaran hulls, is not transmitted directly to the cabin structurally. A towing experiment was carried out by using divided models of about 1/10 scale in counter waves and regular waves to investigate their vibration response characteristics in waves. Furthermore, an experimental boat made of aluminum alloy with about 1/3 scale of the design boat was attached with composite structural struts made of springs and rubber parts to perform cruising experiments on an actual sea area. As a result, it was found that vibration excited by main engines in the catamaran hulls is transmitted very little to the cabin. 2 refs., 10 figs., 1 tab.

  2. On the wave induced responses for a high-speed hydrofoil catamaran. Part 1. Cabin connected to hull by spring and its riding comfort in waves; Suichuyokutsuki kosoku sodotei no harochu oto ni tsuite. 1. Dokuritsu kozogata cabin to harochu norigokochi

    Energy Technology Data Exchange (ETDEWEB)

    Saito, K; Nobukawa, H; Honda, Y [Hiroshima University, Hiroshima (Japan)

    1996-04-10

    Riding comfort in a cabin of a high-speed hydrofoil catamaran was evaluated by comparing with that in ordinary boats as to acceleration in the vertical direction as one of the responses of the catamaran in waves. First, an equation of motion in waves was introduced, and considerations were given while comparing the result of calculations in regular waves with that of model experiments. Comparison and verification were also performed on response characteristics in irregular waves. A new-type boat, whose cabin is supported with four springs, and provided with hydrofoils in front and rear thereof, was verified to have much less motions of the catamaran bodies and the cabin than in the ordinary boats both in regular and irregular waves. This result was proven by numerical calculations and model experiments. Hydrofoils affect largely the reduction in motions. The correlational data between the results of calculations and experiments are considered sufficient to provide design data, although there are still some points to be improved. These results revealed that the riding comfort of the new-type boat has been improved over that in the ordinary boats. 6 refs., 11 figs., 3 tabs.

  3. High speed laser cutting machine. Kosoku reza kakoki

    Energy Technology Data Exchange (ETDEWEB)

    Shinno, N. (Matsushita Electric Industrial Co. Ltd., Kadoma, Osaka (Japan))

    1993-11-01

    The carbon dioxide gas laser cutting machine is being used widely for from cutting soft steel and stainless steel, etc. to intermetallic welding and in the field of cutting in particular, concerning sheet cutting, it has been changing the existing monopoly of the turret punch press, and as for medium and thick plate cutting, that of the gas plasma fusing device. This article is the general description of high speed laser cutting machine. Concerning the laser cutting (sheet cutting in particular), as the essential items for securing severe cutting accuracy and, at the same time, improving the cutting speed, the following matters are picked up for respective explanation; improvement of stationary machine accuracy, improvement of dynamic machine accuracy, improvement of quality of laser beam as well as optimization of cutting conditions, and shortening of piercing time. Also explanation is given to the respective items, namely speeding-up of medium and thick plate cutting, and reduction of load onto the operator by improved operation. Finally, feeding and removing of a sheet only, and feeding and removing with a pallet are mentioned as the efforts for automation and energy saving. 3 figs., 1 tab.

  4. High-speed elevator ELEXCIA{sub TM}; Kosoku elevator EXEXCIA{sub TM}

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    New series high-speed elevator ELEXCIA{sub TM} was put on sale in November 1999. In ELEXCIA{sub TM}, the car and door as well as the newly developed hoist and control device were improved in compactness, lightweight, silence, and riding quality. The major features of the high-speed elevator are as follows: (1) The use of an outer rotor-type permanent magnetic synchronous motor (PMSM) in a hoist reduced the mass of the hoist (by about 40% as compared with the conventional one). (2) The use of a double-structured car side plate and floor enabled a silent car. (3) Improved door performance. The introduction of a PMSM motor and latest inverter control processor door into a door gave smoother movement than the previous one. (4) Brightly easy-to-view and white LED-type operation buttons are used in the hoistway door and car. (translated by NEDO)

  5. Conceptual study of advanced VTOL transport aircraft engine; Kosoku VTOL kiyo engine no gainen kento

    Energy Technology Data Exchange (ETDEWEB)

    Saito, Y; Endo, M; Matsuda, Y; Sugiyama, N; Watanabe, M; Sugahara, N; Yamamoto, K [National Aerospace Laboratory, Tokyo (Japan)

    1996-04-01

    This report proposes the concept of an ultra-low noise engine for advanced high subsonic VTOL transport aircraft, and discusses its technological feasibility. As one of the applications of the previously reported `separated core turbofan engine,` the conceptual engine is composed of 3 core engines, 2 cruise fan engines for high subsonic cruising and 6 lift fan engines producing thrust of 98kN (10000kgf)/engine. The core turbojet engine bleeds a large amount of air at the outlet of a compressor to supply driving high-pressure air for fans to other engines. The lift fan engine is composed of a lift fan, driving combustor, turbine and speed reduction gear, and is featured by not only high operation stability and thin fan engine like a separated core engine but also ultra-low noise operation. The cruise fan engine adopts the same configuration as the lift fan engine. Since this engine configuration has no technological problems difficult to be overcome, its high technological feasibility is expected. 6 refs., 7 figs., 5 tabs.

  6. Conceptual study of an advanced VTOL transport aircraft; Kosoku VTOL ki no gainen kento

    Energy Technology Data Exchange (ETDEWEB)

    Saito, Y; Endo, M; Matsuda, Y; Sugiyama, N; Watanabe, M; Sugahara, N; Yamamoto, K [National Aerospace Laboratory, Tokyo (Japan)

    1996-05-01

    The concept of the advanced 100-passenger class VTOL aircraft equipped with new lift fan engines was clarified as domestic passenger aircraft for the 21st century. Under the assumption of a total weight of 40 tons, a seat fuselage diameter of 3.3m as small as possible and a short seat pitch, the airframe shape satisfying a target performance was obtained without any problems about aerodynamic stability, operability and control capability, and noise lower than that of small helicopters was also estimated. In the case of 10 tons in airframe payload and 8 tons in fuel, even if light-weight composite materials were used for most of parts including fuselage structure, a total weight summed to 42.3 tons exceeding a target by 2.3 tons. As this VTOL aircraft was limited to domestic flight use only, the total weight could be reduced without any change in airframe shape and number of passengers by reducing the payload (baggage weight can be probably reduced by 2 tons/100 passengers in the future domestic flight) and fuel (cruising range around 2500km can be secured even if fuel is reduced by 0.3 tons). In conclusion, this concept was thus technologically reasonable. 6 refs., 15 figs., 6 tabs.

  7. High-speed conversion of carbon dioxide into methanol using catalyst. Shokubai ni yoru nisanka tanso no kosoku methanol ka

    Energy Technology Data Exchange (ETDEWEB)

    Inui, T. (Kyoto University, Kyoto (Japan). Faculty of Enineering)

    1993-02-01

    This paper describes high-speed conversion of CO2 into methanol. When a Cu-Zn-Cr-Al oxide-based catalyst (MSCp catalyst) prepared by using a sedimentation process used for synthesizing methanol from CO is applied to converting CO2 into methanol, the methanol yield decreases down to a several fraction of CO to methanol conversion, with a possibility of greater catalytic deactivation. If this catalyst prepared by using a homogeneous gelation process (MSCg catalyst) is used, the yield of methanol from CO2 increases by 240 plus percent over the case of using the MSCp catalyst, and no catalytic deactivation occurs at all during a use for ten and odd hours. Further, when La2O3 is added to the MSCg catalyst at 4% by weight, the methanol yield increases by about two times as much as the case without addition, and the temperature at which the maximum yield is achieved shifts to a lower temperature side by about 20[degree]C. Combining Ag or Pd with the MSCg catalyst provides the same effects. The paper touches on an attempt of high-speed CO2 conversion using this catalyst loaded with ceramic fibers. 15 refs., 5 figs., 2 tabs.

  8. FY1995 development of a novel rapid immunoassay technology; 1995 nendo shinkina kosoku men'eki sokutei gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    By utilizing the phenomenon that the antigen induces association of VH and VL, which are the antigen-recognizing fragments of antibody, develop a novel rapid immunoassay technology which will eliminate the defects of conventional immunoassays, such as long measuring time and requirement of expensive large automated apparatus. In addition, develop a methodology to make Fvs with low VH-VL affinity but that associate tightly in the presence of antigen. Using a model anti-hen egg lysozyme antibody HyHEL-10 Fv and BlAcore, we have clarified the kinetic basis of the Fv stabilization by HEL. By labeling HyHEL-10 VH, VL with succinimide esters of fluorescein and tetramethylrhodamin, respectively, at their N-termini, we could successfully detect VH-VL association by the increment of fluorescence resonance energy transfer. As a result, 1 {mu} g/ml of antigen could be detected homogeneously in less than 5 minutes. Some VH-VL association measurement systems were made by utilizing M13 phage display of VH fragments of HyHEL-10, anti-nitrophenacetyl, anti-digoxin antibodies. (NEDO)

  9. Technical comparison of communication equipment of high speed railways between Japan and Europe. Tsushin setsubi ni okeru Nichio no gijutsu hikaku (kosoku tetsudo)

    Energy Technology Data Exchange (ETDEWEB)

    Sasaki, S [Railway Technology Research Institute, Tokyo (Japan)

    1994-04-12

    This paper compares and explains pieces of communication equipment in high-speed railways in Japan and Europe. The Shinkansen railways in Japan adopted a train wireless communication of the LCX system in 400-MHz band (partly a spatial wave system) that is used for orders, business operations, and public telephone lines, as well as data communications. Almost all of the European countries use the UIC system train wireless communication (the UIC Standard specifies the operation methods, criteria for communication quality assurance, frequency allocation plans, wireless line control systems, and control signals). This paper summarizes the systems adopted in Japan and Europe by the following items: order telephones, data communications, on-board public telephone service, measures against tunnel interference, track-side transmission cabling facilities, and seat reservation systems. The paper indicates that the communication facilities in the Shinkansen railways are distinguished from those for the conventional railway services to meet the requirement of high-speed and large-number conveyance, while the communication facilities in the European high-speed railways are interchangeable with those for the conventional railway lines. 7 figs., 1 tab.

  10. Experimental study of high-speed counter-rotation propeller on low speed wind range; Dojiku hantengata kosoku propeller no teisokuiki ni okeru fudo jikken

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Collaborative research was conducted by National Aerospace Laboratory and Japan Aircraft Development Company in the period of fiscal 1988-1992 into methods for testing aircraft with advanced propeller in low-speed wind tunnel. The propulsion efficiency of the currently available high-bypass turbofan engine is approximately 60% in the vicinity of Mach number 0.85. Propeller-driven aircraft, whose propulsion efficiency is as high as 80% in the low Mach number domain, are scarcely in practical use in the domain of Mach number 0.75 or higher. There are studies reported abroad as well as in Japan for the propeller-driven aircraft to enjoy higher propeller propulsion efficiency even in the vicinity of Mach number 0.8 by modifying the propeller diameter, number of blades, and blade sections, etc. This paper describes the experimental research into the high-speed counter-rotation propeller. A counter-rotation propeller 0.3m in diameter and provided with coaxially arranged 8times2 SR-2 blades is evaluated for pitch angles during the takeoff and landing modes, for thrust characteristics at the pitch angle for the cruising mode, and for propeller backwash and noise. 15 refs., 72 figs., 9 tabs.

  11. Development of aluminium viscous damper by high speed MIG welding process; Kosoku MIG yosetsuho ni yoru aluminium sei viscous damper no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Hino, H; Hotta, M [Nippon Light Metal Co. Ltd., Tokyo (Japan); Maeda, Y; Shimizu, H [Fukoku Co. Ltd., Saitama (Japan)

    1997-10-01

    We have developed a welded aluminum viscous damper to improve the joining strength between the case and the cover of the conventional damper mechanically fastened by adhesion. The distortion of the welded damper was decreased to an acceptable level using the high speed MIG welding process. Sound quality and good appearance were obtained by optimizing the initial speed of the filler wire and by controlling the welding conditions at the starting part and in the lap part. The leakage load and the fatigue limit of the welded damper were 5 and 10 times those of the conventional damper, respectively. 3 refs., 15 figs.

  12. Fiscal 1999 leading research report. High strain-rate super-plasticity (Leading research); 1999 nendo kosoku chososei kenkyu hokokusho. Sendo kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For solving the global warming problem and constructing the resource recycling society, a demand for highly recyclable light-weight Mg alloys is increasing for energy saving and recycling improvement, in particular, for automobiles and electrical appliances. However, use of Mg materials is limited because its poor workability. This research targets development of the material with a rich recyclability and a rich workability for forming complex shapes, and its working technology. Leading research was made on development of the continuous high-strain rate (more than 10{sup -2}/s) super- plasticity material forming process from raw materials to products of Mg alloys, and establishment of the production technology free from technological barriers. The research result showed that for the recognition of Mg alloy as low- environment load super light-weight industrial material, establishment of the composite resource-saving energy-saving production process including recycling and reusing is necessary at the same time as establishment of the high- strain rate super-plasticity material forming process. (NEDO)

  13. Development in high speed and high quality laser cutting process in fiber reinforced plastics; FRP no laser ni yoru kosoku, kohinshitsu setsudan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Ishide, T.; Shirota, H.; Matsumoto, O. [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)

    1996-06-01

    Trimming was performed and studied by cutting KFRP, an epoxy matrix with Kevlar fiber woven thereinto, using various laser beams. The CO2 laser is capable of high-speed cutting but the product is low in quality. The surface of a cut by the YAG laser is not high in quality even with its peak output elevated. The thermally affected area is smaller under the excimer laser but it is low in cutting speed. The ablation properties of the excimer laser were investigated and the beam was shaped into a linear beam for another experiment, but it failed to attain the target speed of cutting. Next, a combination of excimer laser and CO2 laser was used for cutting. It was so designed that the preceding CO2 laser cuts the KFRP at a high speed to leave behind a carbonized layer, which is followed by a linear beam which vaporizes the carbonized layer for removal. An optical system is adopted for reshaping the excimer oscillated beam into a tube-like beam. Optical conditions were determined for a fluence value required for the removal of the carbonized layer. When the CO2 laser was set at 160W and the excimer laser at 20W, a 1mm-thick sheet was successfully cut at a speed of 16.7mm/sec. 3 refs., 7 figs.

  14. 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.

  15. Evaluation report on research and development of high-speed computation system for technological use; Kagaku gijutsuyo kosoku keisan system no kenkyu kaihatsu ni kansuru hyoka hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-08-01

    The above-named project is an effort implemented under the large-scale industrial technology research and development system through the cooperation of industrial, academic, and governmental circles in the nine-year-long period beginning in fiscal 1981. The project aims to establish technologies required for putting to practical use a high-speed computation system capable of speedily dealing with huge technological problems which the computers available at the commencement of the project failed to solve. The goals set for new devices and comprehensive systems were sufficiently challenging in view of the technological level of those days, and are still at the highest level in the world. It is judged that the goals were set with reason and appropriateness. The liaison council for the implementation of the project is constituted of people of experience or academic standing, entrusted research and development activities, Ministry of International Trade and Industry bureaus concerned, and the Electrotechnical Laboratory of the same ministry. Discussion, coordination, and communication on concrete matters are under way between the constituent members, contributing to the enhancement of research and development. The liaison council activities are evaluated to be appropriate and effective. (NEDO)

  16. Experimental and numerical studies on aerodynamical noise in a high-speed elevator. ; Effect of apron on flow around elevator car. Kosoku elevator no kuriki soon ni kansuru kenkyu. ; Kagomawari no nagare ni oyobosu apron bu no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Matsuda, H.; Fukuyama, Y.; Miyasako, K.; Endo, M. (Toshiba Corp., Tokyo (Japan)); Yokono, Y. (Tokyo Institute of Technology, Tokyo (Japan). Research Laboratory of Precision Machinery and Electronics)

    1993-08-25

    For the purpose of reducing aerodynamic noise of a high-speed elevator, the flow around the elevator car was subjected to a flow visualization experiment and numerical simulation using a model simulating an elevator. The state of the flow in front of the door was observed by visualizing the field of flow around the model submerged in a water bath using a poster color tracer. Further, a wind tunnel experiment was carried out to observe the effects of flow at the side wall of the car. An oily agent using TiO2 as pigment was used for observing the pattern of oil film on the surface of the model and the observed results were recorded on a video tape. Since the oil solution is white, the place where the oil film is peeled by a strong shearing force exhibits a pattern of black color which is the color of the model substrate. Flow in front of the door is different depending on whether the car is in the upward motion or in the downward motion and affected by the presence of apron. During the downward motion of the car, the vertical vortices accompanying the flow detouring from the rear surface to the front surface of the apron are generated at both ends of the apron and thereby the streamlines are concentrated to generate accelerated flow in front of the door. Suppression of vertical voltices is important for reducing noise during downward motion. Peeled flow and vortex interference appear at the side and back of the car and forms a field of complex flow. 12 refs., 10 figs.

  17. Characterization on impact damage resistance of CF/PEEK laminates under low and high velocity impact tests; Teisoku/kosoku shogeki shiken ni yoru CF/PEEK no taishogeki sonshosei no hyoka

    Energy Technology Data Exchange (ETDEWEB)

    Morita, H; Hamamoto, A [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan); Adachi, T; Nishimori, K; Matsumoto, H [Tokyo Institute of Technology, Tokyo (Japan)

    1995-04-15

    Experiments were conducted to learn the impact damage on jet engine CFRP components for sucking birds or others. A great mass low velocity collision experiment using a falling weight and a small mass high velocity collision experiment using an air gun were conducted. The damages inflicted upon CF/PEEK (polyetheretherketone) laminates in the respective experiments were compared with each other by using the ultrasonic flaw detection method (C-Scan). There was a linear relationship in both experiments between the projected damaged area DA measured by C-Scan and the impact energy IE, enabling the relative evaluation of impact-withstanding damage characteristics by using the DA/IE ratios. DA/IE in the high velocity impact was higher than that in the low velocity impact, but the DA/IE ratio between the high velocity impact and the low velocity impact remained approximately the same, not dependent on the fiber orientation. The lamination parameter {beta} defined on the basis of the difference in-plane rigidity between the layers constituting the laminate is proportional to DA/IE, with {beta} enabling the generalized numerical expression of the impact of the fiber orientation upon the impact-withstanding damage characteristics. 9 refs., 5 figs., 2 tabs.

  18. Mixture formation of direct gasoline injection engine. In cylinder gas sampling using fast response ionization detector; Tonai funsha gasoline engine no kongoki keisei. Kosoku FID ni yoru tonai gas sampling

    Energy Technology Data Exchange (ETDEWEB)

    Yamashita, H; Marubara, M; Ota, N; Kudo, H; Yamamoto, H [Mazda Motor Corp., Hiroshima (Japan)

    1997-10-01

    Local mixture concentration near the spark plug of a direct gasoline injection engine was observed by a fast flame ionization detector. To ensure combustion stability and good fuel economy in DISC operation, the swirl ratio and the piston configuration were optimized. Swirl is needed to retain well-vaporized and stable mixture near the spark plug especially in light load. And adequate volume in piston cavity is required for trapping curved fuel spray in it. With these specifications, the fuel economy improvement of 13 to 30 % was realized. 2 refs., 13 figs., 1 tab.

  19. Achievement report for fiscal 1989 on the research and development of automatic sewing system. High-speed laser beam cutting subsystem; 1989 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. Kosoku laser saidan subsystem

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-03-01

    A report is compiled about the above-named system being developed under the large-scale industrial technology development project. In the research on the automatic cloth inspecting machine, the primary visual defect detector etc. are improved and enhanced in performance, which involves the color-difference detecting unit. A photomultiplier is adopted for shortening the time required for measurement. For the cloth conveyer system, improvement is accomplished, with importance attached to conveyance free of tension. In the research on the cutting system, it is acknowledged that data transmission and reception between the cutting FA (factory automation) computer and various units connected thereto satisfy the design specifications. A pattern match recognition unit is built, and a good result is obtained when it is tested in combination with the cutter main body. In the development of a process control data applicator, an ink drying mechanism to operate after data application, a nozzle dry-up preventing mechanism, etc., are designed and manufactured. In the study of marker layouts, a software program is developed for generating CAD (computer-aided design) data enabling proper response to the expansion and shrink of cloth. (NEDO)

  20. Bond behavior between CFRP sheet and concrete. Part 2. Improvement of bond strength by out-of plane confinement; CFRP sheet to concrete no fuchaku kyodo (2). Mengai kosoku ni yoru fuchaku tairyoku no kaizen

    Energy Technology Data Exchange (ETDEWEB)

    Sato, Y.; Kimura, K.; Kobatake, Y. [Obayashigumi Research Inst., Tokyo (Japan)

    1998-07-30

    Behavior of phase at the bond interface between CFRP sheet and concrete is modeled basing on the result of anchoring experiment, and specimens are subjected to finite element analysis to investigate necessary confining stress and anchoring length. Improvement of bonding strength is confirmed by providing lateral sheet for anchoring on the sheet bonded on concrete. The out-of-plane stress acted on the sheet and the out-of-plane displacement during confinement in the experiment are estimated as average 0.5MPa and 0.16mm, respectively. Providing appropriate angle to a two-node joint and setting proper stress/deformation relation of springs crossing each other, the behavior of the phase at the bond interface subjected to out-of-plane confinement is modeled. The maximum bond stress is improved from 4.56MPa to 5.10MPa, and the area where the bond stress becomes larger than 4.56MPa increases from 25mm to 30mm. To anchor the sheet employed in this experiment, larger than 30mm out-of-plane confining stress of 0.5MPa must be provided in the direction of fiber. 16 refs., 17 figs., (plus 1 appended fig.), 3 tabs.

  1. Achievement report for fiscal 1990 on the research and development of automatic sewing system. High-speed laser beam cutting subsystem; 1990 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. Kosoku laser saidan subsystem

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    A report is compiled about the high-speed laser beam cutting subsystem being developed under the above-named large-scale industrial technology development project. In the research on an intelligent inspection machine for cloth for apparel making, frontier research and development efforts are conducted using computer-aid control technologies etc. In the research on a 1-dimensional sensor, a new algorithm is contrived for suppressing low the image processing unit cost, noise is removed, and a processing technology of detecting flaws only is invented. In the research on a 2-dimensional sensor, an algorithm is developed capable detecting flaws with stability in the presence of fluctuations in illumination. Furthermore, a new color-difference meter and a CAD (computer-assisted design)-aided cutting system capable of avoiding flaws, etc., are developed. As for the laser beam cutting system, a system is constructed that feeds value-added cut parts in a fully automatic way to the sewing stage according to a schedule generated by a process control computer. An experiment is conducted for meshed knife cutting, and the development goal is attained. (NEDO)

  2. Report on achievements of research and development of an automatic sewing system in fiscal 1988. High-speed laser cutting sub-system; 1988 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. Kosoku laser saidan sub system

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-03-01

    This paper describes the achievements in fiscal 1985 of developing an automatic sewing system. The automatic fabric inspection detects and marks automatically defects in cloth that may cause quality defects in sewn products. This information is transmitted so that corrective actions can be taken preventively, and the quality is assured. In order to avoid errors in shifts of defect positions caused by expansion and shrinkage of cloth in each process, a meter marking device was fabricated to allow the positional information to be corrected. Improvement was given on the visual defect detection equipment by using optical means. Cloth cutting is performed mainly by the high-speed laser cutting system, where the knife mesh system is adopted for complementary purpose. Discussions were given on operation method plans for the laser cutting machine. The process is executed sequentially on one belt conveyer shaped honeycomb. An ITV camera is moved on a robot to use the image data therefrom for matching the patterns on cloth. An information printing device was given a basic design, and the printing ink was developed. An information transmission format was set as an item common to different devices. The pitch times in each process were calculated to structure a factory automation network. (NEDO)

  3. Research on variable swirl intake port for high-speed multivalve DI diesel engine. Effects of port configuration on flow characteristics and swirl generation capacity; 4 ben kogata kosoku DI diesel engine no kahen swirl kyuki port ni kansuru kenkyu. Kyuki port haichi ga ryudo tokusei to swirl seino ni oyobosu eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Kawashima, J; Ogawa, H; Tsuru, Y [Nissan Motor Co. Ltd., Tokyo (Japan)

    1997-10-01

    In our previous papers, the variable swirl intake port system which can control a wide swirl ratio range (from 4 to 10) was described. This system consisted of two separate intake ports, one of them has a flow control valve for changing the swirl ratio. In this type of variable swirl system, some variations of port combination, port shape, and position can be designed. In this paper, the intake flow characteristics of various port combinations were analyzed on the basis of a steady-state air flow test and 3-dimensional computations. The results indicate that the total performance of the twin ports can be estimated from that of a single port in any kind of port combination. Some difference in flow patterns were found in a variety of port combinations even if each swirl ratio is similar. The selected port combinations in our previous study are good for a wide swirl control range. 11 refs., 9 figs., 1 tab.

  4. Fiscal 1999 achievement report on regional consortium research and development project. Regional consortium activity in its 3rd year (Development of 3-dimensional high-speed bio-micromanipulation system); 1999 nendo sanjigen kosoku bio micromanipulation system no kaihatsu seika hokokusho. 3

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The system manipulates such bio-materials as cells, DNA (deoxyribonucleic acid), etc., 3-dimensionally in the micro/nano scale domain. In the field of screening and transportation technology, a device is improved which selectively and speedily extracts a required one out of a great quantity of microbes dispersed in a solution. The target microbe is trapped in a laser beam and moved, and then collected. In the case of yeast, a cell is extracted in 10 seconds. The system separates a target microbe with a probability of 60%. For improvement on operability in dissecting cells and the like using a 3-dimensional micromanipulation system, a device is improved which positions objects in a liquid. The effect of dielectrophoresic force and rotating torque on yeast cells is confirmed. An improved micro triaxial force sensor is incorporated into the device. Based on this device, a master-slave system is constructed, remotely controllable and capable of triaxial force measurement, and force sense presenting algorithm is incorporated into the system for the realization of cell operation through position and force control. The development of microscopic processing technologies such as X-ray lithography is also explained. (NEDO)

  5. Report of the results of the fiscal 1997 regional consortium R and D project. Regional consortium field / Development of 3D high speed bio-micromanipulation system (first fiscal year); 1997 nendo chiiki consortium kenkyu kaihatsu jigyo. Chiiki consortium bun`ya / sanjigen kosoku bio-micromanipulation system no kaihatsu (daiichi nendo) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This is aimed at developing a 3D high speed bio-micromanipulation system for small objects such as cells, bacteria and DNA. In fiscal 1997, a common platform for putting together and integrating individual technology owned by each member is trially fabricated, and the R and D of element technology to be integrated to it is divided up among members. As to selection/transportation technology, a basic experiment on screening by laser beams and electric field is conducted, and microfluid chips isolating bacteria are fabricated. Concerning positioning/fixation technology, cells and others which are comparatively larger than bacteria are freely positioned, and microdevices for fixation are trially fabricated. Relating to power measuring/controlling technology, developed is a multi-freedom degree contact type micromanipulator and a multi-axial minute sensor which enables the 3D mechanical manipulation of cells of the above-mentioned size, etc. The minute processing technology is developed to trially fabricate various microdevices which are integrated into the common flatform. 42 refs., 89 figs., 9 tabs.

  6. FY 2000 report on the trend survey of technical development of high speed/high function electronic devices such as quantum functional devices in association with the rationalization of energy utilization; 2000 nendo energy shiyo gorika ni kakawaru ryoshika kino soshi nado kosoku kokino denshi device no gijutsu kaihatsu doko chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Concerning the results of the R and D made by NEDO of superlattice devices (FY 1981-1990) and quantum functional devices (QFD) (FY 1991-2000) as high speed/high function electronic devices, this survey was aimed at investigating the trend of the newest technology to grasp the technical effects, the state of commercialization/product-making, and the future. The effects, technical subjects, etc. in the R and D of superlattice devices were succeeded to the R and D of QFD as the succeeding project. Here, therefore, the paper arranged the outlook of the commercialization/product-making in relation to the R and D of QFD and the future R and D subjects. In the R and D, features of QFD as target were made clear. The commercialization is limited to Motorola's QMMIC, Fujitsu's RHET, etc. As to the other R and D items, subjects of the technical development to be implemented toward the commercialization just became clear. The subject is the heightening of micro (nano meter) processing technology. The important subject, in particular, is compatibility of the heightening of micro processing and the improvement of throughput. (NEDO)

  7. Study on application of single-crystal ice `Kurobe ice column` to high-speed skating rinks. Demonstration test result at Olympic memorial arena `M wave` in Nagano city; Tankesshohyo `Kurobe no hyojun` no kosoku skate link eno tekiyosei kenkyu. Naganoshi olympic kinen arina `Emu Wave` deno jissho shiken kekka

    Energy Technology Data Exchange (ETDEWEB)

    Iwasaki, M. [Kansai Electric Power Co. Inc., Osaka (Japan)

    1999-06-10

    For high-speed low-friction skating rinks, research was made on sticking artificial ice columns (ice bamboo shoot). The ice columns were fabricated with the ice column production equipment equipped with 4-line water droplet dropping devices which were installed at intervals of 0.3m on both sides of a pathway of 200m long, 2.6m wide and 1.8m high in the lateral adit of Kurobegawa No.4 hydroelectric power station. The grown ice columns were processed for high-speed skating rinks through cutting, confirmation of single crystal and crystal orientation, slicing for every 7mm thickness and packaging. The ice columns were spread all over the rink while sliding them to prevent mixing of bubbles after spraying distilled water of nearly 25 degreesC onto base ices. In addition, hot water of nearly 40 degreesC was sprayed to produce the final ice rink of 30mm thick by nearly 5mm a day. The dynamic friction coefficient of the ice column rink reduced to 0.0038 by nearly 16% as compared with 0.0045 of conventional rinks. (NEDO)

  8. Fiscal 2000 achievement report on project for research and development of intelligent infrastructure creation and utilization technologies. Research and development project on high-speed deformation characteristics evaluation methods for metallic materials; 2000 nendo chiteki kiban sose riyo gijutsu kenkyu kaihatsu jigyo. Kinzoku zairyo no kosoku henkei tokusei hyoka hoho no kenkyu kaihatsu jigyo - Gyomu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Efforts were made to develop methods for evaluating the characteristics of metallic materials experiencing high-speed deformation or impact deformation. The research was conducted by the research WG (working group) consisting of some participants of an international conference convened this fiscal year. The research result revealed that studies in Japan lopsidedly dealt with metallic materials at strain velocity of 10{sup 4}/second or less, such as steel, while many studies overseas dealt with materials other than metals at strain velocity over 10{sup 4}/second. The test and evaluation WG conducted high-speed tension tests for T6-treated aluminum alloys using the split Hopkinson bar method, hydraulic servo method, one bar method, and the sensing-plate method for measuring force, and the results were compared. It was then found that the one bar method produced disturbance more remarkably than the others and that the loading block structure and load rise time influenced the emergence of the peak load. The emergence of a peak load in the Hopkinson bar method or the one bar method had been predicted on the basis of the research conducted by the analysis group. (NEDO)

  9. 1998 report on results of technological development of super metal. Innovative technological development for producing advanced structure controlled metallic material (high-speed large reduction rolling technology); 1998 nendo super metal no gijutsu kaihatsu seika hokokusho. Kodo soshiki kozo seigyo kinzoku zairyo sosei gijutsu kaihatsu (kosoku daiatsuka atsuen gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

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

  10. Fiscal 2000 survey report on the survey of trends of quantum beam process technologies for development of high-speed large-capacity digital electronic information devices; 2000 nendo kosoku daiyoryo digital denshi joho device kaihatsu no tame no ryoshi beam process technology no doko chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The effort clarifies the tasks and problems of the next-generation WDM (wavelength division multiplexing) device, the tasks and problems of domestic information digital devices, and the characteristics, and matters wanting further development, of quantum beam technologies that are to contribute to the development of the said devices. In concrete terms, quantum process technologies involving the ultralow energy ion beam, gas cluster ion beam, electron beam, laser beam, radiation, and the like, are to be studied and developed as device processes, and the product of the effort will be utilized for accelerating the currently difficult development of the semiconductor laser diode, high-speed photoelectric conversion diode, optical circuit device, and the next-generation plastic liquid crystal display device. That is to say, process technologies for a high-speed undamaged compound semiconductor device, high-precision optical circuit device, and a totally plastic liquid crystal display device will be established, and verified as valid. Furthermore, novel digital devices will be developed. In this research and development work, manufacturing process technologies will also be established, which as practical technologies will clear the rigorous goals that the industry demand for process stability, process yield, process amount, and the like. (NEDO)

  11. Achievement report for fiscal 1999 on research and development of technologies for medical welfare equipment. High-speed and three-dimensional X-ray CT system using a cone beam X-ray; 1999 nendo iryo fukushi kiki kenkyu kaihatsu seika hokokusho. Kosoku kon beam sanjigen x sen CT (energy shiyo gorika)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-05-01

    Research and development is conducted of (1) a three dimensional data reconstruction system and (2) a three-dimensional image processing system. Under item (1), an experimental 3-dimensional image reconstruction unit is built. Its arithmetic performance is evaluated, and it is found that it will complete a 512{sup 3}-voxel reconstruction process in 5 minutes. An experimenting system which is a one-piece unit is built for evaluating apparatuses. Under item (2), a viewer is fabricated as an element basic to 3-dimensional image processing, which is to display 3-dimensional data in a 2-dimensional image. In addition, basic 3-dimensional image processing is enabled by adding to the viewer an image filter and a function of describing the cross section at an arbitrarily chosen angle. In the development of a total system, (1) a basic design is prepared for a data collecting device IC, (2) a sampling grate is designed, (3) basic designs are prepared for the gantry and the bed, and (4) an image quality assessment system is constructed. Under item (1), specifications are determined for the data collecting device IC, and a test piece is built. Under item (2), it is confirmed that the experimental data transmitter is capable of 622Mbps. Under item (3), preparation of a detailed design is stared. Under item (4), a simulation is conducted for the formation of a human body equivalent-phantom. (NEDO)

  12. Development of high efficient L-lactate fermentation and P(3HB) biosynthesis for [Lactate Industry], the new technology for post-petrochemistry; Posto petoro kemisutori toshiteno Lactate Industry wo jitsugen surutameno kosoku kokoritsu L-nyusan hakko to P(3HB) hakko seisan no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Ishizaki, Ayaaki; Kobayashi, Genta; Vonktaveesuk, P.; Tsuge, Takeharu; Tanaka, Kenji [Kyushu University, Fukuoka (Japan). Faculty of Agriculture

    1999-03-10

    We have developed a high efficiency L-lactate fermentation process employing the homofermentative lactic acid bacterium, Lactococcus lactis IO-1 with a pH-dependent substrate feed system in order to consume the substrate completely and maintain high activity of cell growth, production, and substrate consumption. Furthermore a pH-dependent substrate feed system was combined with turbidity control consisting of a laser probe and micro filter module for cell-recycling. With this system, we achieve a high efficiency L-lactate continuous culture. We are able to construct high efficiency bioconversion systems from xylose to P(3HB) via L-lactate and other organic acids because Lactococcus lactis IO-1 can utilize not only glucose but also xylose as a carbon source. Thus, we have developed a new substrate feed system which is able to automatically control substrate concentration in a broth. A new batch fermentative system for production of biodegradable plastic material, poly hydroxybutyrate [P(3HB)] from culture broth of Lactococcus lactis IO-1 is vealized. (author)

  13. Development of high-speed and high-efficient L-lactic acid fermentation and P (3HB) fermentative production for realizing Lactate Industry as Post petrochemistry; Posuto petorokemisutori to shiteno Lactate Industry wo jitsugensuru tameno kosoku kokoritsu L-nyusan kakko to P(3HB) kakko seisan no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Ishizaki, Fumiaki; Kobayashi, Genta; Vonktaveesuk, P.; Tsuge, Takeharu; Tanaka, Kenji [Kyushu University, Fukuoka (Japan)

    1999-04-05

    We are streptococci For the purpose of maintaining thing, it is high in the culture of Lactococcus lactis IO-1 in respect of perfect use of the substrate and metabolism activity of bacterial cell, and it pHs pH Substrate feed control method (pH-dependent substrate feed system) as an index was developed. In addition, advanced and integrated continuous culture system which enabled stabilized culture system and high lactic acid production speed was constructed by using furnace concentrator and on-line laser turbidity controller. And, Lactococcus lactis IO-1 By going through the organic acid such as the lactic acid from the xylose, it seems to be possible to carry out bio conversion of which it is efficient, since it is also very much excellent in the utilization-ness of the xylose which is a major component of tree biomass of the glucose otherwise. Then, culture medium supply method which enabled new batch culture system and substrate concentration automatic control for making this lactic bacteria and fermented milk acid liquid produced using culture system and organic acid liquid to be a substrate, and for producing polyhydroxy butyric acid [P (3HB)] which is the biodegradable plastic material by Alcaligenes eutrophus at high speed high-density was developed. (translated by NEDO)

  14. Study on application of single-crystal ice 'Kurobe ice column' to high-speed skating rinks. Demonstration test result at Olympic memorial arena 'M wave' in Nagano city. Tankesshohyo 'Kurobe no hyojun' no kosoku skate link eno tekiyosei kenkyu. Naganoshi olympic kinen arina 'Emu Wave' deno jissho shiken kekka

    Energy Technology Data Exchange (ETDEWEB)

    Iwasaki, M. (Kansai Electric Power Co. Inc., Osaka (Japan))

    1999-06-10

    For high-speed low-friction skating rinks, research was made on sticking artificial ice columns (ice bamboo shoot). The ice columns were fabricated with the ice column production equipment equipped with 4-line water droplet dropping devices which were installed at intervals of 0.3m on both sides of a pathway of 200m long, 2.6m wide and 1.8m high in the lateral adit of Kurobegawa No.4 hydroelectric power station. The grown ice columns were processed for high-speed skating rinks through cutting, confirmation of single crystal and crystal orientation, slicing for every 7mm thickness and packaging. The ice columns were spread all over the rink while sliding them to prevent mixing of bubbles after spraying distilled water of nearly 25 degreesC onto base ices. In addition, hot water of nearly 40 degreesC was sprayed to produce the final ice rink of 30mm thick by nearly 5mm a day. The dynamic friction coefficient of the ice column rink reduced to 0.0038 by nearly 16% as compared with 0.0045 of conventional rinks. (NEDO)