Sample records for bisho kikai kyocho

  1. 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 new software structuring models (R and D of micromachine cooperative control use software); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Shin software kozoka model no kenkyu kaihatsu (bisho kikai kyocho seigyoyo software no kenkyu kaihatsu) seika hokokusho



    A R and D was conducted of software structuring models which ease the development and maintenance of software systems and meet diversification of needs. As for the study of the cooperative control use programming language, a R and D of agent oriented language Flage was carried out for expansion of language function, arrangement of network function, development of exercises, etc. As to the formulation of agent knowledge, proposed were processes to make a program from the specifications, and EVA, a mechanism in response to changes in the specifications of existing programs. In relation to the basic theory of cooperation system, a study was made mainly of object oriented attribute grammar OOAG as a model representing cooperative computation in software process as a rule group. Concerning the study of the situation recognition mechanism, researched were models of communication and reasoning among agents in cooperation. 187 refs., 107 figs., 23 tabs.

  2. Asymmetrically multi-collapsed structure of Kikai caldera in southern off Kyushu Island, Japan: A reconstruction from seismic reflection images

    Ikegami, F.; Kiyokawa, S.; Oiwane, H.; Nakamura, Y.; Kameo, K.; Minowa, Y.; Kuratomi, T.


    Kikai caldera (Matsumoto, 1943) is a mostly submerged highly active caldera complex located in the southern Japan 40 km off Kyushu Island. The caldera has bathymetrically two rims partially that are previously considered as older-outer and newer-inner ones (Yokoyama et al., 1966). The caldera is believed to be the source of Akahoya tephra (Machida and Arai, 1978) which date was determined as 7300 cal. BP (Fukusawa, 1995) which is the most recent VEI-7 class eruption in the eastern margin of Asia. Intense earthquakes (Naruo and Kobayashi, 2002), low-aspect ratio Koya ignimbrite (Maeno and Taniguchi, 2007) and tsunami (Geshi, 2009) are presumed to have taken place at the climax of the eruption. There are at least two other series of giant eruption deposits that are considered to have originated from the Kikai caldera (Ono et al., 1986) and this indicates that it has been serving as an eruptive center for the past 150,000 years. We conducted seismic reflection observations in two survey cruises (KT-10-18 and KT-11-11) in 2010 and 2011 using a research vessel Tansei-maru of JAMSTEC (Japan Agency for Marine-Earth Science and Technology). The sound source was a 150 cubic inches G-I gun with 10 seconds of shot interval, and a 48-channled streamer cable was used for acquisition. Totally 24 profiles were obtained with the speed of 4 knots. First, the absence of large fault in northern and western caldera rim indicates Kikai likely had an asymmetric "trapdoor" style collapse (Lipman, 1995) rather than the ideal "piston" type one. Inner and outer topographic rims at the east to south do correspond with large faults, however the both of them may have worked in 7300 BP eruption because they reach to the seafloor. Such asymmetric multi-collapse would provide some characteristics to the climactic pyroclastic flow in 7300 BP. Second, the bathymetric rise at the center of the caldera consists of high-amplitude surface and chaotic thick facies outwardly collapsed by intense normal

  3. Sea-level standstill and dominant hermatypic coral from the holocene raised reef terraces at the Kikai Island, Ryukyu Islands

    Coral reef terraces are one of the best recorders of biological response to environmental change events (e.g., sea-level changes). Kikai Island provides a rare opportunity to show biological and ecological frameworks (e.g., competition, coexistence, and succession) during a recent geological period. The island is fringed by raised Holocene raised reef terraces, which formed as a result of periodic tectonic uplifts. This study aims to characterize the spatial and temporal changes of corals at this island during the Holocene. The analysis is based on topographical and biological data obtained for the three sites (Shidooke, Kadon, and Nakugama reefs). Three raised reef terraces (Terrace II, III, and IV) grew from 7300 to 4500 years ago (during 2800 years), from 4500 to 2900 years ago (during 1600 years), and from 2900 to 1800 years ago (during 1100 years), respectively. Terrace II and III were uplifted 1-2 m around 4500 years ago and around 2900 years ago. Terrace IV was uplifted 1-2 m around 1800 years ago. The modern reef has been composed of corals for 1800 years. Sixteen coral genera and 53 species were recorded from the reef terraces. Terrace III and IV were dominated by four coral species (A. digitifera, A. robusta, G. retiformis, and F. stelligera), but Terrace II was predominantly composed of A. digitifera and A. robusta. These biological and ecological variations between the terraces represent a growth strategy responding to differences of reef growth time and/or insolation. (author)

  4. The structure of iron-hydroxide mounds at hydrothermal environment in shallow marine, Satsuma Iwo-Jima, Kikai caldera, Japan

    Kuratomi, T.; Kiyokawa, S.; Ikehara, M.; Goto, S.; Hoshino, T.; Ikegami, F.; Minowa, Y.


    Satsuma Iwo-Jima Island, located 38km south of Kyusyu, Japan, is a volcanic island in the northwestern rim of Kikai caldera. Iron-rich mounds develop with hydrothermal activity (pH=5.5, 50-60 °C) in Nagahama bay southwestern this island. The brownish seawater at the bay is due to mixing of the hot spring water (Shikaura and Tazaki, 2001) with the high deposition rate (1 m per year) of iron-rich sediments (Kiyokawa et al., 2012). In this study, we found the structure of mounds has unique information by the observation with X-ray CT scan, FE-SEM, and the thin-sectioned sample, and the chemical analysis with EDS, XRF, and XRD. Samples (20-30 cm long) were piece of mounds made from two layers: black high-density hard layer and brownish low-density soft layer. X-ray CT scan observation shows that the inside of samples is constructed from the aggregation of convex structure (3-4 cm). Low-density layers have many pipe-like structure (typical radius: 1 mm). Petrographic observations indicate that both high- and low-density layers have filament-like forms, however the form in low-density layer is perpendicular to those in high-density layer. In low-density layer, small particles on the filament-like form and the number increases toward high-density layer. FE-SEM observation shows that filament-like form in high-density layer consists of aggregation of bacillus-like form as the chain of particles (about 2 μm). At low-density layer, on the other hand, bacteria-like form with smaller particles (twisted). Furthermore, all particles are iron-hydroxides such as ferrihydrite with silica because they are consist of Fe, Si and O with broad peak in XRD. We conclude that the mounds at Nagahama bay were constructed form aggregation of convex structure with many pipes as the hydrothermal vent. Bacteria-like form probably is the stalk of neutrophilic, iron-oxidizing bacteria because of those unique forms. Such a bacteria prefers an environment of redox interface (Chan et al., 2011

  5. Estimation of the adult male population of sweet potato weevil, Cylas formicarius (Fabricius) at its low-density period on Kikai Island in Japan

    The sweet potato weevil, Cylas formicarius (Fabricius) is a major insect pest of the sweet potato, Ipomoea batatas (L.) Lam. throughout the tropical and subtropical regions of the world. We estimated the entire adult male population of C. formicarius at its low-density period on Kikai Island, Kagoshima Pref., Japan. The population of adult males at the high-density period in September was about 5 times larger than that at its low-density period in May, both of which were estimated by Yamamura's method. Using this calculation in combination with an estimate of the maximal population size (4 x 10E6) by Sugimoto et al. in 1994, the total number of male weevils at their low-density period can be assumed to be less than 8 x 10E5

  6. Robot performing heavy gymnastics. Kikai taiso wo suru robot

    Takashima, S. (Hosei Univ., Tokyo (Japan). Faculty of Engineering)


    Methods of simulation of the motion of human bodies and the control of the motion of bobots are sdudied in order to realize robots to perform gymnastics on a horizontal bar. A model of the human body structure is presented by dividing the human body into 8 parts: right and left arms, the head, the trunk, the right and left thighs, and the right and left foot, and a system is constructed by combination of the links of the rigid partswith an assumption on each link for simplification. A method to enhance the swing motion is devised in order to produce a suspension motionaas a basic movement of horizontal bar gymnastics. The basic condition to control the horizontal bar gynnastics and the control system of an articulation angle are considered. Two algorithms are presented in order to enhance the swing motion and to maintain suspension swing: excitation of the swing by a vertical motion of the center of gravity and excitation by the use of natural frequency. Computer simulation of suspension swing is executed and the results are shown in a figure. A prototype robot to perform horizontal bar gymnastics is manufactured and performs suspension swing, starting of swing, kip motion and giant swing. The concept of optimization is not included concretely in the prototype. 22 refs., 8 figs.

  7. Research study on harmonized molecular materials (HMM); Bunshi kyocho zairyo ni kansuru chosa kenkyu



    As functional material to satisfy various needs for environmental harmonization and efficient conversion for information-oriented and aging societies, HMM were surveyed. Living bodies effectively carry out transmission/processing of information, and transport/conversion of substances, and these functions are based on harmonization between organic molecules, and between those and metal or inorganic ones. HMM is a key substance to artificially realize these bio-related functions. Its R & D aims at (1) Making a breakthrough in production process based on innovation of material separation/conversion technology, (2) Contribution to an information-oriented society by high-efficiency devices, and (3) Growth of a functional bio-material industry. HMM is classified into three categories: (1) Assembly materials such as organic ultra-thin films (LB film, self-organizing film), and organic/inorganic hybrid materials for optoelectronics, sensors and devices, (2) Mesophase materials such as functional separation membrane and photo-conductive material, and (3) Microporous materials such as synthetic catalyst using guest/host materials. 571 refs., 88 figs., 21 tabs.

  8. Research on harmonized molecular materials; Bunshi kyocho zairyo ni kansuru chosa kenkyu



    Harmonized molecular materials (HMM) were researched to create functional materials adaptable to needs such as environmental harmony and high-efficient conversion in post-industrial society and aging society. Superior mechanisms function efficiently in organisms for perception, transmission and processing of information, and transport and conversion of substances. These functions are caused by harmonization between organic molecules, or organic molecule and metal or inorganic substance. HMM is a key substance to realize these functions similar to those of organisms artificially. It is the purpose of this research to develop HMMs, reform production process by innovating separation and conversion technologies, and finally realize molecular chemical plants. This research also develops high-efficient devices to contribute to the information society, and progresses the industry of bio-functional materials such as high-sensitive bio-sensor. The functions, applications and creation technologies of three kinds of HMM such as assembly, mesophase and microporous materials were researched in fiscal 1995. 956 refs., 128 figs., 13 tabs.

  9. Automation techniques of coke oven moving machines; Kokusuro ido kikai no jidoka gijutsu

    Inayama, A.; Noguchi, H.; Shibata, T. [Kawasaki Steel Corporation, Tokyo (Japan). Chiba Works


    In a coke oven plant, four associated moving machines are used for coal charging, coke pushing, coke guiding and transportation. Except quenching cars, which are easy for automation, pusher cars, coal charging cars and coke guide cars had been driven by boarded operators respectively. Since 1994, Kawasaki Steel has been tried to realize the automatic no-man operation of the moving cars, including the pusher car that was considered to be difficult, at Chiba Works No. 6 and No. 7 coke oven plants. Consideration to the oven bodies deteriorated through the respective usage of 19 and 26 years, and preventive function to manual interruption during the detected light fault of equipment, are the key issues to achieve this goal in order to modify and improve the existing equipment. For automation techniques of the moving cars developed at Chiba Works No. 6 and No. 7 coke oven plants, the feature of the automation system and the current operating condition are described in this paper. (author)

  10. Study of glass processing under microgravity; Bisho juryoku kankyo wo riyoshita glass no kenkyu

    Makihara, M. [Osaka National Research Institute, Osaka (Japan)


    In a study field on glass processing under microgravity environment (ME), R and D of practical advanced glasses used in a top technology field are in promotion together with basic studies on transfer phenomenon of glass melt and others. This paper presents an example of study themes on application of the remarkable effect of ME on glass to development of new materials. Glass melt with a certain composition shows extremely small surface tension and contact angle for a specific substrate. This combination shows a superfluidity under ME, and allows uniform glass coating on the surface of complicated-shape materials. Non-contact surface treatment is possible under ME by the effect of sound pressure and electrostatic force. Preparation of singular photo-functional glass is also possible by melting more than two kinds of glasses different in physical property under ME, and transferring glass melts by Marangoni convection to 3- dimensionally distribute the function into glass. Development of high-melting point glass and glass ceramic fine particles is also expected. 36 refs., 5 figs.

  11. Crystal growth of semiconductors in microgravity; Bisho juryokuka no handotai kessho seicho

    Kinoshita, K. [Nippon Telegraph and Telephone Corp., Tokyo (Japan)


    Most of crystal growth methods handle liquids or gases except recrystallizing methods of solids. Since the effect of a microgravity appears as macro-change in motion or form of liquids or gases, effective use of microgravity environment can produce high-quality crystals which have been never obtained on the earth. Based on major experiments on crystal growth of the 1990s, this paper outlines the effect of a microgravity on crystal growth, and some future issues. The space crystal growth experiments of III-V group compound semiconductors were carried out using International Microgravity Laboratory (IML), Fuwatto`92, Chinese reusable satellite, and Free Flyer (SFU). Melts, liquids and gases were used as materials for these crystal growth experiments. These experiments aimed at production of high-quality crystals by using the effects of non-convection, non- buoyancy, non-sedimentation, non-static pressure and isolated floating under microgravity environment. Systematic researches are most important toward the coming era of an international space base. 27 refs., 3 figs.

  12. Characteristics and application of microfibrillated cellulose. Bisho fiburiru ka serurosu no tokucho to sono yoto

    Miyakawa, A. (Daicel Chemical Industries Ltd., Osaka (Japan))


    As the methods to refine or fibrillate cellulose fibers, there are the mechanical treatment, the physical treatment such as explosion, etc., and the chemical treatment such as microcrystallization, etc. In this article,, the technique to microfibrillate cellulose fibers using the high pressure homogenizer, which Daicel Chemical Industries Ltd. introduced from America ITT Leonia Co., and the features as well as use of the merchandise called Cellish, manufactured by this method are introduced. In order to microfibrillate fibers with the above device, the pressure of the aqueous suspension of raw cellulose is raised with a piston pump to several hundred kg/cm [sup 2], and the pressurized suspension is let to pass through an extremely narrow slit at more than 200m/s, then the pressure is reduced to the atmospheric pressure. Cellish has its minimum diameter of 0.01[mu]m and its surface area becomes more than 200 times bigger, since its raw cellulose fiber is split into about forty to eighty thousand pieces. Cellish is not water soluble, but has viscosity and very small adhesion, hence under no outer force, it shows the automorphic property. Its water retentivity is good and it is used as a filter and various additives. 12 refs., 8 figs., 2 tabs.

  13. Thermophysical properties measurement of high temperature melts under microgravity; Bisho juryokuka ni okeru koon yutai no netsubussei sokutei

    Hibiya, T. [NEC Corp., Tokyo (Japan)


    This paper introduces an example of the thermophysical property measurement of high temperature melts under microgravity. In addition, this paper also reports the thermophysical property measurement of high temperature melts measured on the ground so as to make preparations for a microgravity experiment. In the microgravity environment, the methodology by which the diffusion constant, heat conductivity, and surface tension previously called `three vices of thermophysical property measurement` can be properly measured was arranged. Frohberg showed a scientific interest in the measurement of a diffusion constant. The research worker in Japan introduces a shear cell method and has been endeavoring to improve the measurement precision. In practical use, the diffusion measurement of semiconductor melts is significant as a research theme. The electromagnetic suspension device (TEMPUS) developed in German enabled the thermophysical measurement in the supercooled state by utilizing the advantage of non-contact. It is a great breakthrough in the thermophysical property measurement of high temperature melts that were difficult to measure. The behavior at the melting point or higher can be properly recognized by examining the properties and structure of supercooled melts. 49 refs., 9 figs., 2 tabs.

  14. Solidification of metals and alloys under microgravity conditions; Bisho juryoku kankyo deno kinzoku oyobi gokin no gyoko

    Motegi, T. [Chiba Institute of Technology, Chiba (Japan)


    Studies on the difference of solidified textures of metals and alloys under microgravity conditions from conventional ones on the earth, and the possibility of new material creation are very exciting. Features of microgravity environment in melting and solidification of metals are no thermal convection, and mass transfer caused only by diffusion. Even in alloys where the second phase molten component separates by difference in density on the earth, homogeneous textures are obtained because of no floatation and sedimentation. Melting and solidification without vessels allows to produce high-purity materials because of no invasion of impurities from vessels. No static pressure can eliminate distortions of crystals due to dead weight. No defects are observed because of no disturbance of atomic sequences. Referring to various experiments on metals under microgravity conditions, this paper outlines supercooling solidification of metal melts, solidification of single-phase alloys and multi-phase alloys such as eutectic and peritectic system ones, particle-dispersing composite materials, and the behavior of gases in molten metals. 35 refs., 8 figs., 2 tabs.

  15. Advanced high temperature fluid technology development using microgravity environment; Bisho juryoku kankyo riyo kodo koon ryutai gijutsu kaihatsu



    Behavior of gas/liquid two-phase flow in tubes and behavior of air bubbles in liquid were investigated under the microgravity environment without convection by using the drop test facilities of the Japan Microgravity Center. To remove bubbles in the liquid under gravity, the strength of surface tension acting on the gas/liquid interface was made inhomogeneous. In this case, the moving velocity of bubbles on the gas/liquid interface was able to be raised up to the maximum of 2.4 mm/s. For the movement of bubbles in the horizontal direction under the condition of low relative velocity independent of the size of air bubbles in the duct, bubbles moving in the horizontal direction under 1g flowed almost linearly accompanying with the liquid flow. For the air bubble distribution in the bubble flow, where small bubbles flow in the vertical tubes, the fluid pattern of air bubble flow under 1g and {mu}g depended greatly on the initial condition of mixed bubbles. Fundamental data were obtained, as for the transportation and control of multicomponent bubbles, bubbles in the sound field, and bubbles in the liquid phase by magnetic force, and the fluid phenomena of bubbles in the subcool boiling region, a single bubble in the gradient electrical field, and bubbles in the tubes with small diameter. 47 refs., 97 figs., 8 tabs.

  16. Study about the effect of microgravity on biofunctions; Seitai kino eno bisho juryoku no eikyo ni kansuru kenkyu



    A study is made for the elucidation of the effect of microgravity on biofunctions. The protoplast of shiitake is exposed to microgravity and then cultured, and a significant difference occurs. The rate of colony formation by cell fusion in the test sector is found to be two times higher than that in the control sector. When swimming ciliates which are unicellular are suddenly exposed to microgravity, their swimming speeds changed differently according to the direction of swimming. When a mouse subjected to acupuncture for three days is exposed to microgravity, its water metabolism and excretory function are enhanced. A mouse treated with Chinese medicine reacts in the similar way. The change due to microgravity in the amount of acetylcholine in the hypothalamus is found characteristically time dependent. Mice infected with lethal herpes viruses just after exposure to microgravity die at a rate in proportion to the number of exposures and to the amount of viruses given. The migration speed of chemical stripes in case of a gel-base BZ (Belousov-Zhabotinsky) reaction under microgravity is equal to that on the ground. The trigger wave migration speed in case of a water solution-base BZ reaction under microgravity is reduced to approximately 80% of the speed on the ground. 12 refs., 31 figs., 3 tabs.

  17. Coordinated control of space-robots using angular velocity norm estimation; Kakusokudo norm suitei to sentan sokudo seigyo ni yoru kyocho seigyo

    Taniwaki, S.; Matsunaga, S.; Okami, Y. [Tokyo Inst. of Tech. (Japan)


    This paper proposes a coordinated control method based on the norm estimation of the angular velocity of the satellite attitude and the control of the head speed of the manipulator. In this method, the angular velocity norm of the satellite attitude is estimated in real time from the target value of the head speed of the manipulator, i.e. the target payload speed during a coordinated control operation in which the variation of the inertial parameters of a space robot is compensated, and the head speed of the manipulator is controlled by using this estimated value. This enables the variation of the attitude of the satellite body to be within a permissible range. The restriction on the manipulator control speed at this time is alleviated more than that satisfying the Lyapunov stability conditions, so that the operability of the manipulator is improved. The effectiveness of this method was ascertained by a numerical simulation. The attitude variation could be within a permissible range by correcting the head speed of the manipulator so that the estimated value became not higher than a permissible range. 7 refs., 9 figs., 4 tabs.

  18. Application to advanced reinforced precast concrete frame system in conciliation of design and construction; Sekkei to seko no kyocho ni yoru kairyogata ramen purekyasuto koho no jissen

    Kobayakawa, S.; Mikame, A.; Kura, M.; Kuroda, Y. [Fujita Corp., Tokyo (Japan)


    The reinforced precast concrete (RPC) frame system has been applied frequently in recent years because of its considerable manpower saving at construction sites, its big effect of shortening construction periods and its wide application range in terms of composition technique, but since it has been developed for its practical application aiming at buildings of relatively big scales and simple configurations, there still remain several issues in its application to buildings of small scales and complicated configurations. The building of the health control center which has been built quite recently by the Health Insurance Association of Fuji Heavy Industry in Ota City, Gumma Prefecture is an outcome of the efforts of practical application and execution of the prerequisite of introduction of the latest new techniques and design methods from the very beginning of the entire planning based on the adoption of the RPC method by each division of design, technical development and construction in an united way. In this article, regarding the new techniques and the technical improvements adopted in the construction works, the aims of its introduction and their results are reported. This building has 5 stories above the ground and its building area is 1,078m{sup 2}. The new techniques are the reduction of cross sections of members by using high strength material, the improvement of beam joining methods, etc.. 6 refs., 21 figs., 1 tab.

  19. Constant-torque control of turbomachines. 2nd Report. Engine-driven pumps; Turbo kikai no jiku torque ittei seigyo. 2. Nainen kikan kudo pump no baai

    Kawaguchi, K.; Kamata, I.; Asanagi, T. [Ebara Corp., Tokyo (Japan); Tanokura, A. [Ebara Densan Ltd., Tokyo (Japan)


    Report is made about the experimental application of the turbomachine constant-torque control method to an internal combustion engine-driven high specific speed pump. The apparatus for the experiment comprised a test pump, driver (diesel engine), fluid coupling, torque meter, function generator, suction tank, etc., all satisfying the prescribed specifications. In this control method, the number of rotations, which gives preset torque values in response to the pump operating head, is predetermined by use of the total pump head/flow rate and torque/flow rate characteristics of the test pump, and then signals specifying the required rotation are sent to the rotation number adjuster via a function generator. When this method is compared with the method in which the pump rotation number is kept constant, it is found that this method remarkably increases the flow rate for the same head as in the other method, prevents the driver from overload in case of low flow rate, and suppresses the required NPSH (net positive suction head) from enlargement before and after the maximum efficiency point. 1 ref., 7 figs., 1 tab.

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



    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)

  1. Optimization of man-machine roll allocation in automatic systems; Jidoka system ni okeru hito to kikai no yakuwari buntan no saitekika

    Yamasaki, H. [Yokokawa Electric Corp., Tokyo (Japan). Research and Development Lab.


    Bearing reliability and safety of automatic systems in mind, man-machine roll allocation in the operation of facilities is examined, and the optimal roll allocation is proposed. The outline of the method for man-machine roll allocation is given in process instrumentation system, robotized assembly plant, railroad operation control system, and passenger airplane operation control system. The types of man-machine roll allocation in automatic system is divided into normal and emergency cases. Improvement in the total reliability of man-machine system can be expected by man-machine mutual complementary roll allocation. The core of the intelligent support system for emergency is the growing knowledge base, and the system performs intelligent support automatically or with the support of human in an emergency. For smooth man-machine information interchange at man`s own will, logical difference between man and machine must be adjusted in the man-machine interface. 8 refs., 2 tabs.

  2. Japanese Journal of Paper Technology. `98 Technology Annual (machinery, equipment, engineering, maintenance, laboratory utilities, chemical); Kami pulp gikyo times. 1998 nendo gijutsu manual (kikai shizai yakuhin soran)



    The general survey of the 1998 technology manual on machinery/materials/chemicals was made public. In the part of machinery/materials, the following are included: pulp manufacturing machine/equipment, used paper treatment/stuff preparation machine/equipment, dedusting/cleaning/concentrating equipment, stuff pump/chemicals pump, paper machine and related equipment, paper machine related tools/machinery/materials, finishing machine/handling equipment, processing facility/processing finishing facilities, equipment for secondary processing/paper product making, measuring control/test analysis equipment/facility, utility/environment related equipment/facility, safety equipment/other related equipment/machinery/materials, etc. In the part of chemicals, assistants for cooking/decoloration/used paper treatment, sizing agent, paper strength reinforcing/paper quality improving agents, filler/pigment, dye/color pigment, inorganic/synthetic fiber, work improving agent, antiseptics/antifungal agent, felt cleaner, antiforming agent, freeness/yield improving agents, flocculant, various assistants, utility use chemicals, functionalizer, processing agent, coating/laminate/chemicals for paper product making, etc. 630 figs, 76 tabs.

  3. Visualization of sooting field in an emulsion droplet flame by using microgravity environment; Bisho juryoku kankyo wo riyoshita nyuka nenryo ekiteki kaennai susu nodoba no kashika

    Segawa, D.; Kadota, T. [University of Osaka Prefecture, Osaka (Japan). Faculty of Engineering; Tsue, M.; Kono, M. [The University of Tokyo, Tokyo (Japan); Yamasaki, H. [Ehime Univ., Ehime (Japan). Faculty of Education


    Sooting field in a flame formed around a suspended droplet was visualized under microgravity using the planar laser light scattering technique. The soot concentration and the instantaneous soot amount were approximately estimated from the intensity of the scattered light using the image analysis system. The fuels employed were water-in-oil emulsions composed of n-dodecane, water and surfactant. The water content was varied from 0 to 0.2 in volume. A soot layer which was concentric with the droplet was observed inside the luminous flame. The results show the unsteadiness of the sooting behavior as well as the flame behavior. The maximum of the soot concentration is located near the inner edge of the soot layer. The time history of the instantaneous soot amount is similar to that of the instantaneous flame radius. The maximum of the soot concentration does not vary with the water content, while the soot amount decreases significantly with the water emulsification. (author)

  4. Ignition and combustion of solid-particle mixed fuel drop in a microgravity environment; Bisho juryokuka ni okeru kotai ryushi konnyu nenryo ekiteki no chakka to nensho

    Tanishige, R. [Zexel Corp., Tokyo (Japan); Shimoguchi, T. [Mitsubishi Agricultural Machinery Co. Ltd., Tokyo (Japan); Yoshizaki, T. [Hiroshima University, Hiroshima (Japan); Hiroyasu, H. [Kinki University, Osaka (Japan); Sakuraya, T. [Japan Space Utilization Promotion Center, Tokyo (Japan)


    The ignition and combustion behavior of single Mg slurry and pure C slurry fuel drops were observed at higher temperature under microgravity condition, and compared with those under normal gravity condition. As a result, the lowest ignition temperature of primary flame in liquid fuel combustion under microgravity is lower than that under normal gravity. Solid combustion (secondary combustion) characteristics of slurry fuel drops under microgravity are unaffected by the kind of liquid fuels, however, primary flame ignition delay of slurry fuel drops using cetane is larger than that using dodecane. Under microgravity, soot particle layers are observed on flame surfaces after expansion and contraction of spherical flame during a primary flame period. The layer density is larger in pure C slurry than another slurry. In particular, a primary flame expansion ratio of pure C slurry fuel drops increases stepwise with ambient temperature in a temperature range over the lowest ignition temperature of solid combustion. 8 refs., 18 figs., 3 tabs.

  5. Ignition and combustion of a coal-oil mixture drop in a microgravity environment; Bisho juryokuka ni okeru COM nenryo ekiteki no chakka to nensho

    Tanishige, R.; Yoshizaki, T.; Hiroyasu, H. [Hiroshima University, Hiroshima (Japan); Sakuraya, T. [Japan Space Utilization Promotion Center, Tokyo (Japan)


    Slurry drops made of coal-oil mixture (COM) were ignited and burned at the underground gravity-free experiment center to investigate their characteristics. The experiment was purposed to analyze vapor combustion in a location removed of influence from natural convection and forced convection, and compare it with combustion behavior under normal gravity. The following findings were obtained: the primary flame swells and contracts after ignition, swells again making the flame diameter maximum, and then contracts again to form a second-stage fuel flame; ignition delays when ambient temperature is low, and the second-stage flame occurs in a high temperature region; the primary flame under micro gravity is generated in a lower temperature zone than that under the normal gravity, and the primary flame period is extended longer; COM drop ignition under micro gravity requires smaller activation energy; generation of soot husks centering around the drops becomes remarkable as brightness of spherical flame decreases; the ignition started at 589 K against 970 K for ignition under the normal gravity; liquid components evaporated before ignition are distributed spherically symmetrically around drops; and there is no air flow to have the components scattered and lost. 12 refs., 8 figs., 2 tabs.

  6. Stress effect of martensitic transformation of small iron particles in copper matrix. Dobosochu no tetsu bisho ryushi no martensite hentai ni oyobosu gairyoku koka

    Kato, M.; Fujii, T.; Hoshino, Y.; Mori, T. (Tokyo Institute of Technology, Tokyo (Japan))


    There are two different ways of understanding the stress effects on martensitic transformation. To find out which one is more reasonable, examinations were given on the Stress- induced [mu][yields][alpha] martensitic transformation of iron particulates in monocrystalline copper matrix. The result revealed that out of 24 kinds of Kurdjumov-Sachs variants, the preferentially formed variants are various depending on the direction ([001][sub f] and [419][sub f]) and the sense (tension and compression). In addition, the easiness of generating a martensitic transformation depends upon the sense of external stresses. For example, when compared at the same plasticity shear distortion, the compression induced more martensite than tension at a stress of [001][sub f], but no significant difference was observed between the tension and the compression at a stress of [419][sub f], Further, in an experiment using polycrystalline copper-iron alloy specimens, the tensile stress had a greater effect on martensitic transformation than the compressive stress. 24 refs., 4 figs., 4 tabs.

  7. Measurement of local strain-induced martensitic phase transformation by micro-hardness; Bisho kodo wo mochiita kyokusho hizumi yuki martensite hentai tokusei no sokutei

    Shibutani, Y.; Taniyama, A.; Tomita, Y.; Adachi, T. [Kobe University, Kobe (Japan). Faculty of Engineering


    By the duplex effect produced by two kinds of phases of austenite and martensite, the transformation-induced plasticity (TRIP) steel is improved in ductility and fracture toughness. The strain-induced martensitic phase transformation could be associated with the strain localization behavior. Accordingly, the measurement of the amount of local transformation is necessary in order to construct a more physical evolution model in the constitutive equation. In this study, a new measurement system using a micro-hardness tester is proposed to obtain a volume fraction map of the martensitic phase expanding in the neighbor of strain localization. Then the system is applied to investigate the inhomogenous transformation behavior around the notch root of SUS 304 stainless steel bar under uniaxial tension. 27 refs., 11 figs., 1 tab.

  8. Study on the effect of micro-gravity on bio-functions; Seitai kino eno bisho juryoku no eikyo ni kansuru kenkyu



    The effect of micro-gravity on bio-functions and vital reaction was studied using the facility of Underground Gravity-free Experiment Center Co. On the effect on osteoblast shape and gene expression, although fluorochrome reacting with Ca was well taken into cells, no significant difference in Ca content in cells was observed before/after falling. Expression of genes related to cell propagation was controlled under micro-gravity. Protoplast fusion of Lentinus was unaffected by micro-gravity. The mRNA fragments of gravity sensitive mutant of rice plant were affected by micro-gravity. Paramecium was set swimming in solutions with different specific gravities. The reaction behavior of Paramecium was affected by the difference in specific gravity between cell bodies and solutions. The water content metabolism functions of a mouse with needle stimulus, in particular excretory, were slightly promoted by micro- gravity. The cortisol level in blood of a falling mouse group rose showing strong stress. As the preliminary study on the geotaxis of insects, motion of bagworm was observed. 12 refs., 38 figs., 4 tabs.

  9. Study of the influence of microgravity on the biological cells and molecular level; Seitai saibo bunshi level ni okeru bisho juryoku no eikyo ni kansuru kenkyu



    The shape of osteoblast, gene appearance, gene of rice blast, cellular fusion of plants, gravity acceptance mechanism of unicellular organisms, and physiological and immunity functions of mice were investigated under the microgravity condition. The influence of gravity on the vital reaction and the influence of microgravity on the crystallization of vital substances were also investigated. For the observation of osteoblast, the fluorescence dye reacted with Ca was well taken in the cells. The microgravity affected the stability of rice blast, but hardly affected the protoplast culture of mushroom. The reaction of ciliate against the gravity related to the specific gravity difference between cells and outer liquid. The level of adrenaline in blood of mice increased during the drop. The moving speed of trigger waves of chemical parallel slit formed at the BZ reaction under the microgravity became 60% to 80% of that on the ground. In the case of crystallization at the deposition agent concentration of 1% to 4%, the turbidity showing the degree of crystallization changed complicatedly. Nine processes of crystal growth were recognized. 21 refs., 55 figs., 1 tab.

  10. Stabilization of multi-machine power system by coordinated excitation control of multiple adjustable-speed generator/motors; Fukusu kahensoku hatsuden dendoki no reiji den`atsu kyocho seigyo ni yoru taki keito anteika

    Tatematsu, M.; Yokoyama, A. [The University of Tokyo, Tokyo (Japan)


    Since an adjustable-speed generator/motor (ASGM) is excited by AC voltage fed by a quick-response cycloconverter, a rotating speed of the rotor can be changed continuously. The ASGMs installed at some pumping-up power stations are now operated effectively for automatic frequency control under the lightly loaded condition at night by changing the pumping-up power due to the rotating speed change. It is expected, on the other hand, that under the generating condition in the daytime the ASGM will be used for enhancement of transient stability because it can generate or absorb active and reactive power independently of each other by AC excitation voltage control. This paper proposes a novel control method of excitation system of ASGM for improving the transient stability of a multi-machine power system including multiple ASGMs. The controller which is designed based on an energy function works well for the stability enhancement. In comparison with the conventional excitation control of synchronous generator and constant output control of ASGM, the effectiveness of the proposed method is shown by digital simulations. 10 refs., 5 figs., 2 tabs.

  11. Fiscal 2000 report on result of R and D on robot system cooperating and coexisting with human beings. Development of energy conservation technology; 2000 nendo ningen kyocho kyozongata robot system kenkyu kaihatsu seika hokokusho. Energy shiyo gorika gijutsu kaihatsu



    Introduction of a number of robots and consumption of a large amount of energy are unavoidable if a complicated process operation is to be carried out by robots in an extensive work site. Great energy conservation is contrived by developing robots applicable to manufacturing in performing a variety of operations in place of human beings and thereby reducing the number of robots to work. This paper explains the fiscal 2000 results. For dual-handed cooperative tasks, a function was examined capable of gripping an object without giving a humanoid robot an instruction of an exact gripping position. A method was designed to prepare a command for the other arm through a command for one arm, with torque impedance control employed for the purpose of avoiding damage due to collision. A study was conducted on a three-dimensional shape detecting model using a visual device of a robot. In grasping problems of balance control of a humanoid robot, the behavior of a robot consisting of multi-links was considered as behavior of inverted pendulum, with possibility checked for the stabilization of the balance. For the purpose of putting the virtual robot platform previously developed to practical use, a three-dimensional operation tool of run-time user interface was developed, with research conducted on the sophistication of robot application. (NEDO)

  12. Achievement report for fiscal 2000 on operational research of human cooperative and coexisting (humanoid) robot system. Operational research of humanoid robot system; 2000 nendo ningen kyocho kyozongata robot system un'yo kenkyu seika hokokusho



    This paper reports the achievements in fiscal 2000 in the operational research of humanoid robot system. Carrying out the development smoothly and efficiently requires accumulation of the operational know-how in both of the periodical check and maintenance and the aspects of hard and software to maintain the functions and performances of the robot platform having been developed in the previous fiscal year. Checks were given on fitting of the fasteners and connectors, batteries, and sensors. Operations were confirmed and adjusted on the liquid crystal projector of the surrounded visual display system for remotely controlled operation, polarization filters, screens, reflector mirrors, and wide viewing angle cameras. Verifications were made on fitting of the arm operation force sensing and presenting system, checks on the mechanical components, and operation of the driving system, whereas no change has been found in the operation for the period of one year, and sufficient performance was identified for the remote robot operation. The virtual robot platform has presented no crash and impediments during erroneous use in the disks of the dynamics simulator and the distributed network processing system. (NEDO)

  13. FY 1998 Report on research and development project. Research and development of human-cooperative/coexisting robot systems; 1998 nendo ningen kyocho kyozongata robot system kenkyu kaihatsu seika hokokusho



    This R and D project is aimed at development of the human-cooperative/coexisting robot systems with high safety and reliability, capable of performing complicated works cooperatively and in a coexisting manner with humans in human working and living spaces, in order to help improve safety and efficiency in various industrial areas, improve services and convenience in manufacturing and service areas, and create new industries. The trend surveys cover humanoid robot systems, remote control systems and simulators, and the application surveys cover services for humans, basic humanoids and entertainment communication. The 1998 R and D efforts include research and development, fabrication and surveys for the following themes; (1) fabrication of robot platforms for supporting manual works, (2) development of surrounded visual display systems, (3) development of robot arm manipulation and force displaying systems, (4) development of a dynamic simulator, (5) development of a distributed software platform, (6) researches and development of computation algorithm for kinematic chain dynamics, (7) development of motion teaching system for multi-functional robots, (8) investigation of trends in robotics technology, and (9) researches and surveys of robot application. (NEDO)

  14. FY 1996 result report. Research/development on the creation of high-grade combustion technology using a microgravity environment; 1996 nendo seika hokokusho. Bisho juryoku kankyo wo riyoshita kodo nensho gijutsu soshutsu ni kansuru kenkyu kaihatsu



    With the aim of creating high-grade combustion technology which can respond to the decrease in environmental pollutant in combustion exhaust gas, the high-grade combustion technology research development committee was established inside JSUP (Japan Space Utilization Promotion Center), using the underground gravity-free test center. Following FY 1995, the following were conducted: (1) international joint research with NASA, and (2) tests using microgravity test facilities, etc. and analysis/evaluation of the test data. As to the international joint research, a lot of new information was obtained through the adjustment conference with NASA. Further, there were a lot of results obtained from joint tests and researches. Moreover, the leading experimental device and measuring device which are usable in the microgravity field were developed/prepared. Conducted were combustion/evaporation evaluation experiments on fuel droplet and groups of droplet, combustion characteristics elucidation evaluation experiments on high-density fuels, evaluation experiment on flammability limits, and elucidation evaluation experiments on emission mechanism of NOx, etc. Through those, abundant experimental data were able to be accumulated, and a lot of precious knowledge/information were obtained. Besides, the fabrication of high-class combustor test equipment for ground demonstration was started. (NEDO)

  15. Fiscal 1998 research report on the basic study on the effect of microgravity on living individuals; Bisho juryoku no seibutsu kotai ni taisuru eikyo no kiso kenkyu 1998 nendo chosa hokokusho



    In order to clarify the effect of microgravity on vital functions and organisms at a cell level, this research studies the molecular biological response function of higher animals, the gravity acceptable mechanism of single-cell organisms, the effect of gravity on geotaxis of insects, measurement of monoamine system neurotransmitters of rat hippocampus by dialysis in a brain and the effect of microgravity on it, the effect of microgravity on water and bone metabolism functions and immunity function, and the analysis of BZ reaction as a simple model of vital reaction. The themes of the research are as follows: the effect of microgravity environment on cell fusion, the analysis of gravity acceptable mechanisms of single-cell organisms, the effect of oriental medical treatment on bone metabolism anomaly of mouses under microgravity environment, the effect of oriental medical treatment on change in physiological function under microgravity environment, the effect of microgravity environment on immunity systems, the effect of gravity on cell activities, the effect of a gravity field on chemical oscillation reaction, and the effect of gravity on geotaxis of insects. (NEDO)

  16. Fiscal 1998 research report. R and D on advanced combustion technology under microgravity environment; 1998 nendo seika hokokusho. Bisho juryoku kankyo wo riyoshita kodo nensho gijutsu soshutsu ni kansuru kenkyu kaihatsu



    Research was made on explication of a combustion phenomenon by using a microgravity facility, and a combustor possible to realize advanced combustion technology. In the basic research composed of 5 themes by the international joint research with NASA, 52 drop experiments using JAMIC's facility and 100 drop experiments using NASA's 2.2s drop tower were carried out. The themes are composed of an interaction in droplet arrays combustion, combustion of binary fuel sprays, combustion characteristics of solid fuel, flame dynamics around a lean flammability limit, and mass transfer around a combustion field. In the experiment using the microgravity experiment facility and analysis evaluation of the experimental data, studies were made on combustion and evaporation of fuel droplets, combustion characteristics of dense fuel, flammability limit, formation mechanism of NO{sub x} and an advanced combustor. For applying a pre-evaporating/pre- mixing combustion system to a combustor for aircraft engines, studies were made on some issues such as improvement of a combustion stability, NO{sub x} discharge characteristics, and optimum fuel atomizing. (NEDO)

  17. Bubble motion in liquid nitrogen under a non-uniform electric field in a microgravity environment; Bisho juryoku kankyoka ni okeru ekitai chissochu kiho no denkai ni yoru undo

    Suda, Y.; Muto, K.; Sakai, Y. [Hokkaido Univ., Sapporo (Japan); Honma, N. [Hokkaido Electric Power Co., Inc., Sapporo (Japan)


    The motion of bubbles in liquid nitrogen (LN2) in a non-uniform electric field are observed in a microgravity environment just after release from the terrestrial gravity. The dynamic behavior of the bubbles is analyzed considering the electro-hydrodynamics and thermodynamics, and is explained consistently by a theory including these forces. The shrink of the bubbles in supercooled LN2 is discussed. 15 refs., 8 figs.

  18. Interim report on the research development of high combustion technology using the microgravity environment; Bisho juryoku kankyo wo riyoshita kodo nensho gijutsu soshutsu ni kansuru kenkyu kaihatsu chukan hokokusho



    There are problems on diversification of energy from a viewpoint of energy stabilized supply and reduction of environmental pollutant in fuel exhaust gas. For the solution, combustion phenomena are elucidated using microgravity equipment, and a combustor which enables high combustion technology is studied. For it, a field survey is conducted on implementation of international joint research with the U.S.` NASA, and at the same time experiments and analyses of the experimental data are carried out using microgravity experimental equipment. For experiments using microgravity experimental equipment and analysis/evaluation of experimental data, the following were conducted: (1) evaluation of combustion properties of various fuels, (2) fabrication of equipment needed for experiments for analysis/evaluation of combustion parameters, and combustion/evaporation evaluation experiments of fuel droplet/droplet group using microgravity experimental equipment, evaluation experiment to elucidate combustion property of solid particle mixed fuel, evaluation experiment of combustion limit, etc. In fiscal 1993, experimental data are being acquired for establishing a target experimental method. 42 refs., 151 figs., 1 tab.

  19. Fiscal 1998 research report on the production of bio-affinity materials by using microgravity environment; Bisho juryoku kankyo riyo seitai shinwa zairyo no sosei kenkyu 1998 nendo chosa hokokusho



    Experiment was made on production of bio-affinity materials under a microgravity condition by using the drop experiment facility of the underground a gravity experiment center. The experiment includes fast polymerization of polymer grains, protein orientation control and protein thin film formation, organic thin film formation, O/W emulsion preparation, and crystallization of protein under a microgravity condition. In polymerization of fine pyrrole grains under the existence of fine latex grains, production of fiber polypyrrole is remarkable, and fiber growth from latex surfaces was confirmed. The obtained thin bacteriorhodopsin film shows a photoelectric response, and as the AFM observation result, it is mainly composed of violet single-layer electrodeposited films. The wetting rise of acrylic monomer at the interface between solid and liquid is largely dependent on viscosity. The oil droplet size distribution of O/W emulsion is narrower than that in ground experiment, and is close to a normal distribution. Easy imaging of products was achieved by tracing cytochrome crystals with change in turbidity. The crystallization phase diagram of black mold acid protease A, and basic data in crystallization process were obtained. (NEDO)

  20. Fiscal 1993-1998 integrated research report. R and D on advanced combustion technology under microgravity environment; 1993 - 1998 nendo sogo seika hokokusho. Bisho juryoku kankyo wo riyoshita kodo nensho gijutsu soshutsu ni kansuru kenkyu kaihatsu



    For developing advanced combustion technology by using JAMIC's facility, the advanced combustion technology research committee supported by researchers of universities, national institutes and industries was prepared in JSUP, and R and D using a microgravity experiment facility and the international joint research with NASA were carried out. By using the advanced experimental equipment and measuring instrument developed for microgravity experiments, studies were made on combustion and evaporation of fuel droplets, combustion characteristics of dense fuel, flammability limit and NO{sub x} generation mechanism, and such precious results were obtained as storage of abundant experimental data, explication of a combustion mechanism, preparation of a database and find of new phenomena. In the ground verification experiment using the newly fabricated advanced combustor test equipment, various data effective for developing high-efficiency low-pollution combustors were obtained. Through the joint research with NASA including 5 themes, various results and the real relationship between the researchers were also obtained. (NEDO)

  1. Study on the change of aspect ratios of small surface cracks emanated from a toe of corner boxing; Mawashi yosetsudome tanbu kara hassei denpasuru bishi bisho hyomen kiretsu no aspect hi henka ni kansuru kenkyu

    Toyosada, M.; Yamaguchi, K.; Takeda, K.; Watanabe, Y. [Kyushu University, Fukuoka (Japan). Faculty of Engineering


    The fatigue test of specimens with a stiffener was carried out to examine the change in aspect ratio (crack depth/length) of fatigue cracks in a stress concentration field and residual stress field. The aspect ratio of surface cracks just after generation can be represented with the single virtual surface crack with the same value as K value at the deepest point considering an interference effect from near cracks. No discontinuous change in K value is found at the deepest point even during growth and combination of cracks on a surface. The change in K value at the deepest point is thus the criterion to represent growth and combination of surface cracks considering the interference effect. The change in aspect ratio of the typical single virtual surface crack linearly decreases with an increase in crack depth. The shape of surface cracks generating and growing in a residual stress field is more flat than that in no residual stress field. In addition, in a residual stress field, surface cracks are longer at the same crack depth, and fatigue lives are shorter. 7 refs., 12 figs.

  2. Achievement report for fiscal 2000 on operational research of human cooperative and coexisting (humanoid) robot system. Development for practical application of new power generation technology; 2000 nendo ningen kyocho kyozongata robot system un'yo kenkyu seika hokokusho. Shinhatsuden gijutsu jitsuyoka kaihatsu



    This paper reports the achievements in fiscal 2000 in the development for practical application of a new power generation technology for the human cooperative and coexisting (humanoid) robot system. Carrying out the development smoothly and efficiently requires accumulation of the system operational know-how, as well as the periodical check and maintenance to maintain the functions and performances of the robot platform having been developed in the previous fiscal year. Checks were given on the robot platform hardware, and no anomalies were verified in all operation. For the remote operation platform, normal operations were identified in the visual and audio information presenting and communication systems, including such components as the PCI, noise removing card, three-dimensional microphone, and SGI320. Operations were confirmed on the movement and operation sensing and presenting system, whereas no change has been found in the operation for the period of one year, and sufficient performance was maintained. For the virtual robot platform, the operation was made open to public on the basic operation library network interface. No operational defects, damages, wear, and electrical failures were found in the master hand for the remote control by hands, force sense presentation, finger and wrist position detection, and contact angle presentation. (NEDO)

  3. Achievement report for fiscal 2000 on operational research of human cooperative and coexisting (humanoid) robot system. Development of energy usage rationalizing technology; 2000 nendo ningen kyocho kyozongata robot system un'yo kenkyu seika hokokusho. Energy shiyo gorika gijutsu kaihatsu



    This paper reports the achievements in fiscal 2000 in the operational research on the human cooperative and coexisting (humanoid) robot system to rationalize energy usage. Operational method and maintenance were studied on the platform hardware that has been developed in the previous fiscal year. Checks were given periodically on the robot platform hardware, and no anomalies were verified in all operation. Verifications were made on the fasteners, additional tightening, fitting of the connectors, battery checks, zero position and step response checks, and output checks on the force component sensor, gyro sensor and G sensor. For the virtual robot platform, discussions were given on the basic movement library for the geography complying three-dimensional walking. Such configurations were constituted that integrated use is possible with the simulator system by connecting the networks, and the user can instruct the CORBA server with the generation of walking movements according to the GUI by using the general purpose WWW browser to connect it to the HTTP server, whose result can be verified by three-dimensional graphics. A method to stabilize the all-axis movement servo model was made open to public. (NEDO)

  4. Fiscal 2000 report on result of R and D on robot system cooperating and coexisting with human beings. R and D on robot system cooperating and coexisting with human beings; 2000 nendo ningen kyocho kyozongata robot system kenkyu kaihatsu seika hokokusho



    A highly safe and reliable robot is being developed capable of cooperating with human beings and executing complicated operations in a human working/living space. This paper describes the fiscal 2000 results. Development of robot motion library was continued for extended task for providing services to people in care houses for the aged controlling motions of the humanoid robot. A basic design for a personal service system by the humanoid robot was conducted with the aim of nursing assistance and for the objective of developing a portable terminal type tele-operation device. A public and a home cockpit were researched with the purpose of developing user interfaces for telexistence control. A dynamic simulator for humanoid robots was built, with motions of standing-up and walking examined, in order to develop basic theories for the dual-handed tasks aided by the leg-arm cooperative motion. To develop a robot that properly and safely cooperates and coexists with the human beings, it is essential to obtain a dynamically reasonable and natural control law, so that the basic studies were conducted in this direction. With the purpose of developing a motion capture and learning system, a virtual robot platform and an information acquiring interface were developed. Studies were also conducted on modeling technique for achieving realistic material properties from high-precision image synthesis and actual images. (NEDO)

  5. Fiscal 2000 report on result of R and D on robot system cooperating and coexisting with human beings. Development for putting new power generating technology to practical use; 2000 nendo ningen kyocho kyozongata robot system kenkyu kaihatsu seika hokokusho. Shinhatsuden gijutsu jitsuyoka kaihatsu



    A highly safe and reliable robot is being developed capable of cooperating and coexisting with human beings to carry out complicated operations in a dangerous site such as a plant, power station maintenance, construction, disaster relief, etc. This paper describes the fiscal 2000 results. In the research for navigated walking functions, the capabilities were extracted for walking straight, turning around and going up and down stairs, with a virtual platform simulated and examined. In the development of remote operation for proxy drive, a method was investigated for instructing change in posture and cooperative movement of the arms and legs. In the evaluation of proxy drive operations for industrial vehicles, a type of operating machine was specified for driving in a standing posture applicable to a robot. In the development of information forming technology supporting remote operations, a basic design was made for the simulator technology of compensating information. Server/client remote control technology was investigated, while a plurality of bi-directional interface means were reviewed for the purpose of efficient information exchange between a robot and an operator. A system for assembling a wall panel was evaluated as an outdoor man-machine cooperative operation. Adaptability to complicated environment such as unprepared ground was also studied, as well as the control of movement of a humanoid robot. (NEDO)

  6. Fiscal 1998 R and D report on the human coordination/coexistence robot system (development of practical technology for rational energy use); 1998 nendo ningen kyocho kyozongata robot system no kenkyu kaihatsu (energy shiyo gorika kankei gijutsu jitsuyoka kaihatsu) seika hokokusho



    This report reports the R and D on the human coordination/coexistence robot system possible to perform various works instead of people. As for an intelligent robot hand, 4-finger hand and arm hardware were developed and fabricated, and operation of the assembled system of them was tested. As for a robot platform, a remote control platform, and the interface specifications of command communication and data communication were studied. As for 3-D walk adaptive to land shapes, an analysis environment for a control algorithm and an easy-to-use environment for a virtual platform simulator were prepared. By using this analysis environment, the central part of the walk control algorithm, and a module for forming walk patterns were developed. In the application research on energy saving, various problems on dangerous and harsh conditions in construction and disaster restoration works were analyzed, and the needs of a humanoid robot for such works were studied. (NEDO)

  7. Development of superhigh multistoried RC construction HiRC method execution system. Execution system and application machine for reinforced concrete supermultistoried assembled residence using high strength materials; Chokoso RC zukuri kensetsu (HiRC koho) seko system no kaihatsu. Kokyodo zairyo wo mochiita tekkin konkurito zukuri chokoso shugo jutaku no seko system oyobi seko kikai

    Tsuruoka, M. [Kajima Corp., Tokyo (Japan)


    Superhigh multistoried reinforced concrete construction method (HiRC method) using high strength materials has many construction results, centering to assembled residence through the evaluation of applicability and flexibility to the architectural plan which are the merits of reinforced concrete structure, to say nothing of economical efficiency and comfortableness of residence. In addition to the recent development and practical use of high strengthen concrete and iron rod, control technique and execution system of this high strength materials and application machine are developed. Owing to such developed technology, RC construction superhigh multistoried assembled residences like 45 storied and eaves high 160m were constructed using HiRC method. Outline of this execution system is introduced. High strength concrete with high flowability is used in pillar, beam and floor considering the execution ability, and both execution speed and working conditions are improved by combined use of high pressure concrete pump and self-rising distributor. Further, reduce the weight load of climbing crane and so forth are taken into account, and safe and easy working conditions are considered. 1 ref., 17 figs., 4 tabs.

  8. FY 2000 report on the results of the international cooperative project. R and D of technology for creation of high performance magnetic materials using the microgravity environment; 2000 nendo bisho juryoku kankyo wo riyoshita koseino jisei zairyo sosei gijutsu no kenkyu kaihatsu seika hokokusho



    For the purpose of developing new high performance magnet/magnetostrictive materials, the paper studied the creation technology by the containerless solidification process and unidirectional solidification process using the microgravity environment, and the FY 2000 results were summed up. As to the R and D of Fe{sub 3}/Nd{sub 2}Fe{sub 14}B nanocomposite magnet, by the collision solidification process in which the uniform melt via the microgravity environment is rapidly solidified, {alpha}-Fe that is uniform in composition and is primary-phase is controlled, and the solidified texture made amorphous was successfully acquired. Further studied were the development of magnet material alloys, creation of nitride spring magnet, etc. In the study of the creation of (Dy, Tb)Fe{sub 2} base magnetostrictive materials, the maximum magnetostriction ratio of 4,300 ppm was successfully acquired by the unidirectional solidification in static magnetic field under the microgravity environment. The creation of Tb base super-magnetostrictive AB2 alloys was studied. Besides, studies were made on the formation of peritectic compounds, control of solidification texture of magnet materials, new alloy base high performance magnetic materials, etc. (NEDO)

  9. Fiscal 1997 report on the results of the R and D on the invention of high-level combustion technology using the microgravity environment; 1997 nendo seika hokokusho (bisho juryoku kankyo wo riyoshita kodo nensho gijutsu soshutsu ni kansuru kenkyu kaihatsu) seika hokokusho



    For the purpose of achieving both the diversification of energy resources and the reduction in environmental pollutants in fuel exhaust gases, the paper conducted elucidation of combustion phenomena using microgravity facilities and research on combustors which make high-level combustion possible. In the experimental study using microgravity experimental facilities, conducted were evaluation experiments on combustion/evaporation of fuel droplets and droplet groups, elucidation/evaluation experiments of combustion characteristics of high-density fuels, evaluation experiments of flammability limit, and elucidation/evaluation experiments of emission mechanisms of NOx, etc. Analysis/evaluation of the data obtained and elucidation of the combustion mechanism were conducted. Further, by applying the results of the microgravity experiment, the high-level combustor experimental facilities were fabricated, and validation tests were started. In the international joint research with US`s NASA, the following were conducted using JAMIC`s facilities and NASA`s 2.2 second drop tower: study of mutual interference of droplet series combustion, study of binary system fuel droplet series combustion, study of combustion characteristics of solid fuels, study of behavior of flames around the lean flammable limit, etc. 151 refs., 253 figs., 7 tabs.

  10. Report on final evaluation of 'research and development related to creating a high-level combustion technology utilizing micro-gravity environment'; 'Bisho juryoku kankyo wo riyoshita kodo nensho gijutsu soshutsu ni kansuru kenkyu kaihatsu' saishu hyoka hokokusho



    Final evaluation was concluded on 'research and development related to creating a high-level combustion technology utilizing micro-gravity environment' having been carried out under a six-year plan which has begun in fiscal 1993. The research works in the project have achieved the development of the measuring technology and device required for research in reduction of NOx emission and the observation and elucidation of different phenomena in lean-burns effective for reducing NOx emission, as well as provision of basic data for systematic evaluation on combustion of spray vapor and particle clusters. In addition, elucidation was made on combustion phenomena in combustion fields related to bulbs including flame bulb, which is difficult to be realized under normal gravity, spray vapor combustion mechanism of fuels difficult to evaporate, secondary micronization properties of emulsified fuels, and behavior of soot during droplet combustion, including high-accuracy acquisition of data on migration. The elucidation of these matters was judged to have accomplished the technologically high achievements in reference to the international levels. Structuring of a database of experimental data of wide range and enormous amount received high evaluation for utilization of the derived basic research achievements. (NEDO)

  11. FY 2001 report on the results of the immediately effective type new regional consortium R and D project. Development of the computer/human cooperation type guard robot for crime prevention/disaster prevention use using IT technology; 2001 nendo sokkogata chiiki shinsei konsosiamu kenkyu kaihatsu jigyo kenkyu. IT gijutsu wo mochiita keisanki ningen kyocho gata bohan bosai you keibi robotto no kaihatsu seika hokoku



    In the light of the enlargement of demand/market of disaster prevention guard in association with changes in the social environment, development of a practical robot that automatically patrols and guards a building instead of a guard. The completed 'prototype guard robot' has a height of about 185cm and has a diameter of 65cm and moves by 4-wheel running at the maximum speed of 3km/h by the cooperative control for smoothly displacing/uniting the autonomous function and operational signals from remote operators. The robot recognizes the environment by various sensors (omniazimuth, laser, ultrasonic waves, light, infrared rays), patrols the inside of the building and lets the guard center (operator) know of it in case of emergency. The robot is also able to fight a fire by a fire extinguisher in the judgment of operator. As to the power supply, the robot can automatically change the consumed battery at battery exchange station and continue the automatical patrol and guard. Moreover, the autonomous function for going up/down in an elevator was developed by which the robot can move to different floors from the floor where he is using elevator. (NEDO)

  12. 喜界島在来カンキツのリモニン配糖体およびリモニン含量

    山本, 雅史; 松本, 亮司; 上地, 義隆; 伊地智, 告; 久保, 達也; 冨永, 茂人; ヤマモト, マサシ; マツモト, リョウジ; ウエチ, ヨシタカ; イジチ, ツゲル; クボ, タツヤ; トミナガ, シゲト; Yamamoto, Masashi; Matsumoto, Ryoji; Uechi, Yoshitaka


    Concentrations of limonin glucoside and limonin, one of the phytonutrient components of citrus, in juice of local citrus accessions cultivated in Kikai-jima island of Kagoshima prefecture were studied. The quantification of these components was determined by enzyme immunoassay developed by the authors (Matsumoto et al., 2008). Limonin glucoside is the major component in limonins in all accessions used in this study. The concentration of limonin glucoside in juice of Keraji (Citrus keraji hort...

  13. 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



    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.

  14. The late quaternary tephra layers from the caldera volcanoes in and around kagoshima bay, southern kyushu, japan

    Nagaoka, Shinji


    The Aira, Ata and Kikai calderas of Kagoshima Bay have erupted more than twenty silicic tehra formations including more than fifty tephra falls and flows (about 1,000 km^3 in total volume) in the last 150 ka. On the basis of the sequence of eruptive phases which have many kinds of eruption types, the eruptive cycles of these caldera volcanoes are grouped into three types: 1) a plinian cycle (composed of a single plinian phase, or a plinian phase and a moderate-scale pyroclastic flow phase); 2...

  15. Morphological and molecular characterization of a new genus and new species of parazoanthid (Anthozoa: Hexacorallia: Zoantharia) associated with Japanese Red Coral

    Reimer, J. D.; Nonaka, M.; Sinniger, F.; Iwase, F.


    The Order Zoantharia has long been taxonomically neglected primarily due to difficulty in examining the internal morphology of sand-encrusted zoanthids. However, recent work using molecular markers has shown an unexpectedly high diversity of previously “hidden” taxa (families and genera) within Zoantharia (=Zoanthidea, Zoanthiniaria). In this study, unidentified sediment-encrusting zoanthid specimens ( n = 8) were collected from living Japanese Red Coral Paracorallium japonicum (Family Coralliidae) during precious coral harvesting by Remotely Operated Vehicle (ROV) and manned submersible (February 2004-January 2006) at depths of 194-250 m at six locations between Ishigaki-jima Island and Kikai-jima Island, southern Japan. DNA sequences (mitochondrial 16S ribosomal DNA [mt 16S rDNA], cytochrome oxidase subunit I [COI], nuclear internal transcribed spacer of ribosomal DNA [ITS-rDNA]) unambiguously place these specimens in a previously undescribed, new monophyletic lineage within the family Parazoanthidae. Corallizoanthus tsukaharai, gen. n. et sp. n. is the first reported zoanthid species associated with the family Coralliidae and unlike other described gorgonian-associated zoanthids ( Savalia spp .) does not secrete its own hard axis. Morphologically, C. tsukaharai sp. n. is characterized by generally unitary polyps and bright yellow external coloration.

  16. Post-bomb coral Δ14C record from Iki Island, Japan: possible evidence of oceanographic conditions on the northern East China Sea shelf

    Mitsuguchi, Takehiro; Hirota, Masashi; Paleo Labo AMS Dating Group; Yamazaki, Atsuko; Watanabe, Tsuyoshi; Yamano, Hiroya


    In this study, a sea-surface water Δ14C record of AD 1966-2000 (i.e., after the atmospheric nuclear-bomb testing period of the mid-1950s to early 1960s) was reconstructed from a coral sample collected from Iki Island, western Japan. The island is located in the Tsushima Strait where the Tsushima Current flows from the East China Sea (ECS) continental shelf into the Sea of Japan, indicating a strong influence of the ECS shelf water on the island. It is widely accepted that the Tsushima Current originates in the area between the ECS shelf break and the Nansei Islands further offshore as a branch of the Kuroshio Current, although another possible origin is the Taiwan-Tsushima Current System. The Δ14C record from Iki Island shows the following evidence of a response to the atmospheric nuclear testing: (1) an increase from ~55‰ in 1966 to ~133‰ in 1970, (2) a plateau ranging between ~123 and ~142‰ during the 1970s to the late 1980s, and (3) a gradual decrease from ~115‰ in 1990 to ~83‰ in 2000. Comparison of this record with coral Δ14C records from the Nansei Islands (Okinawa Island, Ishigaki Island and Kikai Island), located ~160-280 km off the ECS shelf break and little influenced by the shelf water, suggests that the surface-water Δ14C around Iki Island was ~30-45‰ lower than that of the Nansei Islands from the mid-1960s to late 1970s, and that the Δ14C difference between Iki Island and the Nansei Islands decreased from the end of the 1970s to ~0-15‰ in the mid-1980s to 2000. The lower Δ14C around Iki Island can be explained as follows: (1) in contrast to the Nansei Islands area, the ECS shelf area is a vertically mixed, highly concentrated carbon reservoir significantly connected to subsurface and deeper waters outside the shelf area, strongly suggesting that the surface-water Δ14C of the shelf area (perhaps excepting very shallow innermost shelf areas) was significantly less sensitive to the atmospheric nuclear-bomb 14C spike than that of the


    黄小慧; 王汝建; 翦知湣


    In the present study multi-approach has been employed to investigate the Holocene sedimentations of the river discharge and volcanic particles in the northern Okinawa Trough. During 11. 0~6. 0 kaBP,amounts of terrigenous particles and organic matter input to the northern Okinawa Trough as well as the particle grain sizes were found to have obviously decreased, which was a result from 50~60 m global sea level rise and a rapid retreat of coastline in the East China Sea. Thereby, the terrigenous input to the Okinawa Trough should be first orderly controlled by sea level changes in the early to middle Holocene. The volcanic glass shard concentration prominently increased during 8. 1~7. 8 kaBP, which was recognized as the K-Ah tephra derived from Kikai volcano in southern Japan. However, the K-Ah tephra age in the deep sea sediment sequence is much older than that of 7. 3 kaBP in a variety of terrigenous records. This inconsistence was probably induced by the uncertainty of marine ~(14)C age calibration. Reservoir age of the northern Okinawa Trough in the early Holocene was considered to be 300 ~ 500 years older than that of the present. A set of proxy records based on the distribution of terrigenous alkane show an increasing expansion of the C_4 plant in the East Asia continent during the Holocene, hinting the aridity was gradually enhanced in the inner part of China, which is consistent with the Holocene decrease in summer monsoon precipitation in this region.%运用多种方法,重建了全新世以来冲绳海槽北部地区陆源输入物以及火山碎屑物的沉积历史.在11.0~6.0 kaBP期间,北部冲绳海槽的陆源物质供应量主要受控于海平面变化.由于该时期海平面上涨了50~60 m,东海陆架上的海岸线快速后退,导致输入北部冲绳海槽的陆源碎屑物和有机质明显减少,沉积物粒度变细.在8.1~7.8 kaBP期间,沉积物中的火山玻璃数目显著增加,导致该时段沉积物粒度急剧增大.经对

  18. Preparation of function-enhanced vegetable oils

    Hiroshi Maeda


    Evaluation of function-enriched edible oils: Preventive effect of lipid peroxidation; (a Heat exposure: Commercial rape-seed oil and extra virgin oil were used as controls. For preparation of the test samples (function fortified oils of tomato-juice waste-residue and grape wine- ferment waste-residues, it is described in above section (1. All oil preparations were exposed to high temperature at 150oC and peroxide value (POV, acid value and TBARS were measured at various times as described. The methods of measurements of POV, acid value and TBARS were adapted conventional standard method described elsewhere. (b Light exposure: Similar to (a they were exposed to excessive light using Nippon Ikaga Kikai (Tokyo, LH-200-RDS equipped with fluorescent light tube (x3, NEC FL40S-2XN, 3.2K lux at 390-730nm. Result and Discussions: (1 Extraction of carotenoids etc. Modern edible oil refining processes are highly elaborated and efficient. The most of the commercial edible oils in the market are so purified that many important antioxidant components are mostly removed during refining process. Oils became mostly colorless and odorless; and they lack are devoid of anti-oxidative or radical scavenging components. We measured anti-alkyl peroxy radical (ROO.-scavenging activity, and found that many commercial oils have very little such activity (Figure 1. Many disposal- of tomato juice or extraction waste-residues in wine making, yet contained significant amount of functionally useful components that may be recovered by immersing the dried waste residues in the functionally poor oil, ie., low grade oils. Figure 2A, B shows it was indeed possible to recover such component like lycopene and carotenoids, and the spectrum of this oil exhibits multiple peaks correspond tomato lycopene. (2 Antioxidation activity: (a Acid value after light and heat exposure. Commercial highly purified edible oils are vulnerable for oxidation and resulting in lipid or alkyl hydroperoxides formation (ROOH, which