WorldWideScience

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    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. AMS radiocarbon dating of wood trunks in the pumiceous deposits of the Kikai-Akahoya eruption in Yakushima Island, SW Japan

    Science.gov (United States)

    Okuno, Mitsuru; Nakamura, Toshio; Geshi, Nobuo; Kimura, Katsuhiko; Saito-Kokubu, Yoko; Kobayashi, Tetsuo

    2013-01-01

    Radiocarbon dating using accelerator mass spectrometry (AMS) was performed on numerous wood trunks from pumiceous deposits along the Nagata, Isso and Miyanoura rivers on the northern side of Yakushima Island, 60 km south of Kyushu Island. The obtained 14C dates were around 6.5 ka BP, which, in combination with the geological characteristics of the pumiceous deposits indicates that these specimens were buried during the Kikai-Akahoya (K-Ah) eruption from the Kikai caldera. However, the fact that they are not charred suggests that the origin of these deposits are not pyroclastic flows. Fourteen taxa (Pinus subgen. Diploxylon, Tsuga, Cryptomeria, Chamaecyparis, Myrica, Castanea, Castanopsis, Quercus subgen. Cyclobalanopsis, Trochodendron, Phellodendron, Lagerstroemia, Rhododendron, Myrsine and Symplocos) were identified through anatomical characteristics. This is the first discovery of forest species on the Yakushima Island before the devastating eruption.

  3. AMS radiocarbon dating of wood trunks in the pumiceous deposits of the Kikai-Akahoya eruption in Yakushima Island, SW Japan

    Energy Technology Data Exchange (ETDEWEB)

    Okuno, Mitsuru, E-mail: okuno@fukuoka-u.ac.jp [Department of Earth System Science, Faculty of Science, Fukuoka University, 814-0180 Fukuoka (Japan); AIG Collaborative Research Institute for International Study on Eruptive History and Informatics, Fukuoka University, 814-0180 Fukuoka (Japan); Nakamura, Toshio [Center for Chronological Research, Nagoya University, 464-8602 Nagoya (Japan); Geshi, Nobuo [Geological Survey of Japan, National Institute of Advanced Science and Technology, 305-8567 Tsukuba (Japan); Kimura, Katsuhiko [Division of Environment System Management, Faculty of Symbiotic System Science, Fukushima University, 960-1296 Fukushima (Japan); Saito-Kokubu, Yoko [Tono Geoscience Center, Japan Atomic Energy Agency (JAEA), 959-31 Jorinji, Toki, Gifu 509-5102 (Japan); Kobayashi, Tetsuo [Department of Earth and Environmental Sciences, Graduate School of Science and Engineering, Kagoshima University, 890-0065 Kagoshima (Japan)

    2013-01-15

    Radiocarbon dating using accelerator mass spectrometry (AMS) was performed on numerous wood trunks from pumiceous deposits along the Nagata, Isso and Miyanoura rivers on the northern side of Yakushima Island, 60 km south of Kyushu Island. The obtained {sup 14}C dates were around 6.5 ka BP, which, in combination with the geological characteristics of the pumiceous deposits indicates that these specimens were buried during the Kikai-Akahoya (K-Ah) eruption from the Kikai caldera. However, the fact that they are not charred suggests that the origin of these deposits are not pyroclastic flows. Fourteen taxa (Pinus subgen. Diploxylon, Tsuga, Cryptomeria, Chamaecyparis, Myrica, Castanea, Castanopsis, Quercus subgen. Cyclobalanopsis, Trochodendron, Phellodendron, Lagerstroemia, Rhododendron, Myrsine and Symplocos) were identified through anatomical characteristics. This is the first discovery of forest species on the Yakushima Island before the devastating eruption.

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

    International Nuclear Information System (INIS)

    Yamaguchi, T.; Hatono, T.; Izumi, S.; Nishihara, S.; Kimura, K.; Torigoe, H.; Tanaka, T.; Miyaji, K.; Hara, Y.; Ueda, A.; Shigei, F.

    2008-01-01

    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

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1995-04-10

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    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.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    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.

  8. Microchemical device based on microscopic bilayer lipid membranes; Bisho 2 bunshimaku wo mochiiita maikuro kagaku debaisu

    Energy Technology Data Exchange (ETDEWEB)

    Yokoyama, H. [Electrotechnical Lab., Ibaraki (Japan)

    1996-04-01

    If an organism is regarded as a macromolecular system, the element device to construct the same is the molecular structure of nano meter scale formed by the functional protein existing in biomembranes. A lot of essential functions of organism such as the sense reception including vision, gustation, etc., photosynthesis, energy-substance production and so on are performed therein. In this paper, the structure, preparing process and the functions of the microchemical device using micro-bilipid membranes are described. The simulation of the sense receiving functions of organisms is tried by said microchemical device wherein, same as biomembranes, the base is bilayer lipid molecular membrane and the receptive protein for receiving signals from exterior and output molecules such as ion channels connected to said receptive protein and the like are incorporated in the membranes. Recently, it becomes possible to make a partial imaging of the bilayer lipid membranes fixed on porous membrane by the observation with scanning Maxwell-stress microscope. 4 refs., 3 figs.

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

    Energy Technology Data Exchange (ETDEWEB)

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

    1992-10-10

    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.

  10. Growth of protein crystals under very small gravity environment. Bisho juryoku kankyoka deno tanpakushitsu kessho seicho

    Energy Technology Data Exchange (ETDEWEB)

    Aibara, S. (Kyoto University, Kyoto (Japan). Faculty of Engineering)

    1994-04-05

    This paper describes influence of very small gravity in space on growth of protein crystals and its future prospect based on the results of the past three space experiments. Protein crystals under very small gravity in space grow by only mutual actions among protein molecules because precipitation and convection of protein molecules in aqueous solution are suppressed. Further, because the crystal nucleus generation process reaches a rate controlling stage in the crystal growth, the crystals grow taking longer time than on the ground. However, the crystal nuclei would not move much in the aqueous solution and grow in situ, hence it is estimated that monocrystals with good crystallinity can be obtained. An experiment utilizing a space shuttle has performed crystallization at 20[degree]C for seven days. Test samples included lysozyme in chicken egg white, myoglobin in horse skeleton muscle, pseudomonas [omega]-aminotransferases, human insulin, and peroxidase in soil bacteria. High quality monocrystals with little mosaics can be obtained under very small gravity in space. 22 refs., 4 figs., 3 tabs.

  11. Mechatronization of rotating machines in plant; Plant ni okeru kaiten kikai no mechatronics ka

    Energy Technology Data Exchange (ETDEWEB)

    Kikuchi, H. [Chiyoda Corp., Tokyo (Japan)

    1993-10-01

    This paper introduces mechatronization of rotating machines in a plant, with application examples of electronic governors as the main subject. For centrifugal compressors, design and fabrication of anti surging control system have become possible by using a programmable logic controller (PLC) and a distributed control system (DCS) with fine scanning time. An electronic governor for turbine control has been added with a function to control amount of power generated by a motive force recovery device in a flowing catalytic cracking equipment by means of an expander inlet valve. This has made possible to operate the motive force recovery device automatically even under a low load operation. With an electronic governor to control supply and receipt amount of steam to and from an existing plant, the governor valve opening angles were so controlled that actual steam header pressure matches the setting, whereas the steam has become possible to be utilized without waste under normal operation. Operation of a comprehensive compressor/turbine monitoring system on DCS, operation of centrifugal compressors of two casings by using electromagnetic bearings, and motor speed control with use of an inverter heve also become possible. 8 figs., 2 tabs.

  12. Annual review on mechanical engineering. 14. ; Roboticster dot mechatronics. Kikai kogaku nenkan. 14. ; Roboticster dot mechatronics

    Energy Technology Data Exchange (ETDEWEB)

    Kakizaki, T. (Nippon Telegraph and Telephone Corp., Tokyo (Japan))

    1990-08-05

    Trend of robotics and mechatronics in 1989, Japanese and foreign, are reviewed in the respective fields. In the field of manipulation technology, development of micro-manipulation, simulation by neural network, motion control technology in space, and development of whole-arm manipulator were advanced. Studies on locomotive function of wheels. legs, and crawler types in auto-locomotive robots were progressed. On sensor technology, combined technologies with control engineering and sensor information were noteworthy. In the field of mechatronics, attention were paid to animated experimental modeling of to new actuators and new trials for system technologies. For the later example, introduction of higher control to magnetic bearings, acceleration in intelligent AV appliances, and automatic connection of MDF in communication field were noteworthy. Systems applying optical technologies increased extremely. Moreover, many other items of research and development are introduced. 40 refs.

  13. Molecular machines in living cells. Seibutsu no bunshi kikai to sono system

    Energy Technology Data Exchange (ETDEWEB)

    Osawa, F. (Aichi Inst. of Tech., Nagoya (Japan))

    1992-12-20

    At first, flagellar motors of bacteria are reviewed as a typical example of molecular machines in living cells. A rotational motor is embedded in the cell membrane at the root of the flagellum. The driving power of the rotation is the flow of hydrogen ion from the inside to the outside of the cell. In a normal state of a bacterium, potential difference of about 0.2 V is produced by the ion pump existing in the cell membrane. A molecular motor of sliding motion of muscle attracts the attention on the relation of the input and output of the molecular motor. The mechanism of the smooth motion without fluctuation in the fluctuated environment and the fluctuated input is unknown. Next, the motion of Paramecium is discussed as an example of a system composed of a number of molecular machines. Paramecium moves to a place of a suitable temperature when placed in a water tank with temperature gradient, however, it does not stop the motion at the place of the suitable temperature and increases a probability to change the direction when leaving, that is it takes a method of indirect probabilistic control. 12 refs., 8 figs.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    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.

  15. Basic study on rigid body dynamics under micro-gravity environment; Bisho juryoku kankyoka deno gotai dorikigaku no kiso kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The basic experiment on control of rigid bodies such as space robot and the unfolding behavior of space film structures was carried out under micro-gravity using the falling experiment facility of Underground Gravity-free Experiment Center Co. and its results were compared with simulation ones. On control of space robots under micro- gravity, since a robot body moves by reaction of a moving robot arm, the control experiment of arm movement was carried out with no use of any gas jet. The basic data on a large space system on a relatively low orbit were collected as motion of a multi-body rigid body in the nonlinear gravity field of the earth using a gradient gravity field simulated by magnetic field. Using the model of a solar cell film array as a typical example of unfolding space structures, the inverse folding phenomenon in storage of the space structure was studied experimentally under gravity-free condition. In addition, this paper summarizes some study results under micro-gravity such as motion of a flexible manipulator. 77 figs., 3 tabs.

  16. Concurrent multidisciplinary mechanical design based on design task analysis and knowledge sharing; Sekkei task bunseki to joho kyoyu ni yoru mechatronics kyocho sekkei

    Energy Technology Data Exchange (ETDEWEB)

    Kondo, K.; Ozawa, M.; Mori, T. [Toshiba Corp., Tokyo (Japan)

    1999-09-01

    We have developed a systematic design task planning method based on a design structure matrix(DSM) and a lumped model- based framework for knowledge sharing in a concurrent design environment as key techniques for developing higher quality products in a shorter design time. The DSM facilitates systematic analysis of dependencies among design tasks and optimization of the design process. The framework based on a lumped model description of mechanical systems enables concurrent and cooperative work among multidisciplinary designers at an early stage of the design process. In this paper, we also discuss the relationships between these techniques and the product development flow from product definition to detailed design. (author)

  17. Chemical system integrated on micro-chip. Effects expected for liquid phase micro-space; Maikuro chippu ni shusekikashita kagaku shisutemu. ekiso bisho kukan ni kitaisuru koka toha?

    Energy Technology Data Exchange (ETDEWEB)

    hisamoto, H.; Kitamori, T. [The Univ. of Tokyo, Tokyo (Japan)

    2000-11-01

    Integrated chemical system is a system that integrates units required for transportation, reaction, separation, analysis, which are important for chemical experiment, on a glass substrate in a similar way as semiconductor device. Among it, a system to integrate analysis system is called , and is attracting worldwide attention for DNA electrophoresis analysis. Integrated chemical system has merits such as reduction in waste and high speed reaction, which can be expected from micronization, as well as short molecular diffusion distance, large relative interface surface, and small heat capacity, which are large advantages for high-efficient chemical reaction. The authors, with paying attention this technology, have realized analysis devices such as gene diagnosis, cancer immunity analysis, and environmental analysis, which are difficult by conventional analyzers. On the other hand, this technology is hopeful for organic synthesis and is expected as a technology to invite a large renovation in the chemical technology in the 21st century. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    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.

  19. 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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    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.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

  1. 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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    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)

  2. 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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    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)

  3. 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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-10-01

    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.

  4. Interim report on research and development in fiscal 1994 on creating high-level combustion technology utilizing micro gravity environment; Bisho juryoku kankyo wo riyoshita kodo nensho gijutsu soshutsuni kansuru kenkyu kaihatsu chukan hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    The present research investigation is intended to create high-level combustion technology that can respond to requirement of reducing environment contaminants in fuel exhaust gases, from the viewpoints of energy diversification as seen from stable energy supply and global environment preservation. A site survey was carried out on executing international joint research works, experiments were performed by suing the micro gravity experimental facilities, and the experimental data were analyzed and evaluated, with the research period having been extended to September 1994. The experiments were carried out by using the facilities at the underground gravity-free experiment center. This paper summarizes the interim achievements as of March 1994. In executing the joint research with the U.S. NASA starting fiscal 1994, information exchange and adjustment are being performed on signing a research cooperation memorandum with NEDO to execute the joint research. In order to perform experiments by using the micro gravity experiment facilities, and analyze and evaluate the experimental data, activities are being taken to acquire the experimental data toward establishing the experiment methods. (NEDO)

  5. 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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    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.

  6. Observation of microcracks due to high temperature creep in unidirectionally reinforced AS4/PEEK laminate 90-degree material. Ichihoko kyoka AS4/PEEK sekisoban 90deg zai no koon creep ni okeru bisho kiretsu no kansatsu

    Energy Technology Data Exchange (ETDEWEB)

    Otani, R.; Kitamura, T.; Tada, N.; Ejima, T.; Sakurai, H. (Kyoto University, Kyoto (Japan)); Koizumi, T. (Toho Gas Co. Ltd., Nagoya (Japan))

    1998-05-21

    A flat strip specimen of an AS4/PEEK (polyetheretherketone) 90-degree material is subjected to a high temperature creep test, the test being interrupted at specified intervals for the detailed observation of the initiation and growth of microcracks. The specimen for the experiment is taken out of a CFRP laminate board in which a thermoplastic resin PEEK is unidirectionally reinforced by the carbon fiber AS4. The creep test is conducted in the atmosphere of 473K with the stress kept at 20MPa, and is interrupted every 4th hour for the observation of microcracks. Some findings are obtained as the result of the test, which are mentioned below. A general observation of the polished specimen surface identifies one approximately 100[mu]m-long crack, and a detailed observation detects a multiplicity of 2-14[mu]m-long interfacial cracks constituting the said crack. The crack growth rate is quite variable but a tendency exists for it to grow higher as the crack grows up. It is supposed that a crack grows when it merges with smaller cracks in presence in front of the crack tip. Among the cracks, there are many that halt at a matrix-rich region and fail to restart growing, this indicating that a matrix-rich region is highly resistant to crack growth. 6 figs.

  7. Report on research results of the FY 2000 medical/engineering cooperative research project. Fundamental research on microelectrode-aided gene information measurement system (Research and development of gene diagnostic system using superhigh-sensitivity microelectrode DNA chip ECA - electrochemical array); 2000 nendo igaku kogaku renkeigata kenkyu jigyo kenkyu seika hokokusho. Bisho denkyoku riyo idenshi joho keisoku system ni kansuru kiban kenkyu (chokokandogata bisho denkyoku DNA chip ECA (denki kagaku allay) wo mochiita idenshi shindan system no kenkyu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The fundamental research is conducted for developing the microelectrode on which a synthetic oligonucletide probe is immobilized, and for establishing the system capable of detecting the hybrid formation simply and quickly, in order to develop the advanced DNA chips for diagnosis. The project results include development of the prototype array electrode with 25 1mm-diameter gold electrodes uniformly arranged at intervals of 4.5mm; development of the electrochemical activity analyzer for multi-electrode systems, showing the performance almost on a level with that of the existing electrochemical analyzer for the single-electrode systems; establishment of the gene databases; development of the method which can produce a sufficient quantity of nucleic acid for DNA chip analysis by studying the method of preparing the nucleic acid from the blood serum, preparing RNA from a trace quantity of the living liver sample and amplifying the genes, wherein the nucleic acid is produced while its profile before the amplification is kept intact; and establishment of the method for detecting the hepatitis B virus by combining the electrochemical detection of DNA by a non-immobilized probe with the PCR method. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

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

  9. Specified international joint research. Report for fiscal 1997 on the result of `Development of Machining Supporting System`; Kokusai tokutei kyodo kenkyu. `Kikai kako shien system no kaihatsu` 1997 nendo seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    On the basis of information obtained from actually performed designing of machines with the aid of computers, researches are conducted for the development of a system that automatically designs required machine tools, machining procedures, machining conditions, and tool paths. The research and development efforts made in fiscal 1997 are enumerated below. In the development of man-machine interfaces, one that integrates a machining procedure designing system, machining condition designing system, and a tool path designing system, all of which are subsystems belonging in a machining supporting system, is developed. In a system evaluation performed through actual machining, an interface between CAD (Computer-Aided Design) technology and a machining supporting system is evaluated, when machining is actually performed for experimentation in an environment in which a machining procedure designing system, machining condition designing system, tool path designing system, and CNC (Computerized Numerical Control) technology collaborate as integrated. As the result, the performance expected to be achieved at the beginning is realized. Two scientists of Russian Academy of Sciences are invited, and researches are conducted concerning knowledge processing technology. 20 refs., 21 figs., 10 tabs.

  10. Report on the achievements in fiscal 1999 on research and development of a human cooperating and coexisting type robot system (Development of energy use rationalization technology); 1999 nendo ningen kyocho kyozongata robot system kenkyu kaihatsu seika hokokusho. Energy shiyo gorika gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Research and development has been performed on a system technology for the human cooperating and coexisting type robot that can perform various types of works substituting human hands. This paper summarizes the achievements in fiscal 1999. In developing a high-function hand, development and fabrication were executed on a device to teach four finger holding actions that correspond to the enhancement in action stability and control responsiveness of the four finger hand and to positions and attitudes of objects. In fabricating the robot platforms, single platform tests and remotely controlled platform connection tests were performed, which demonstrated the functions as an integrated system. In developing libraries for topography adaptive three-dimensional basic walking actions, development was carried out on libraries that correspond to menus for direct advance on a flat land, slewing, and walking on staircases and irregular land. It was found that control closer to that for actually usable robot is possible by considering time delay in articulate control when simulation was performed using the testing robot body. In the study and survey of robot proliferation, development plans were presented that take into consideration the social influence, technological factors, and cost need adaptability. (NEDO)

  11. 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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    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)

  12. FY 1998 result report on the R and D of human cooperation/coexistence type robot system. (Development of commercialization of new power generation technology); 1998 nendo ningen kyocho kyozongata robot system no kenkyu kaihatsu (shinhatsuden gijutsu jitsuyoka kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The R and D were conducted to realize a robot system which can work cooperating and coexisting with humans at working places for maintenance, construction, rescue, etc. of plants and power plants. In the fabrication of a robot platform supporting maintenance, etc., the interface specifications were studied for command/data communication with the remote control platform. In the development of an audio-visual display system and a communication system, they were designed based on the required specifications of audio-visual display/communication systems for the remote control cockpit. In the development of a human-friendly display system for sense of operation, the basic design was carried out of a manipulation device, gripping operation, a force display device, a traveling operation device, and a body sense display device which make it possible to command standard operations required for walking with two legs and going up/down stairs and for lifting up and carrying an object with two arms with ease and presence. Further R and D were conducted of a method for displaying reality, sensor simulator, a network interface for the basic robot motion library, etc. (NEDO)

  13. Army-UNL Center for Trauma Mechanics

    Science.gov (United States)

    2011-03-07

    34Modeling and Simulation of Blast- Induced, Early-Time Intracranial Wave Physics leading to Traumatic Brain Injury," Sandia Report, SAND2008-0330...Extradural Hematoma ," Nippon Kikai Gakkai Ronbunshu A Hen, Transactions of the Japan Society of Mechanical Engineers, Part A, 61( 591), pp. 2386-2392

  14. Technological development for super-high efficiency solar cells. Technological development for crystalline compound solar cells (research and development of composite materials on solar cells under microgravity environment); Chokokoritsu taiyo denchi no gijutsu kaihatsu. Kessho kagobutsu taiyo denchi no gijutsu kaihatsu (bisho juryoku kankyo wo riyoshita taiyo denchiyo zairyo kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

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

    1994-12-01

    This paper reports the study results on development of composite materials for solar cells under microgravity environment in fiscal 1994. (1) On a thin film capillary method, 26 experiments of GaSb thin film crystal growth were conducted using the especially prepared high-accuracy electric furnace under microgravity. The wettability of thin film crystals was improved by refining equipment. Rhombus crystal planes and large crystal grains were observed in GaSb thin film crystals prepared under microgravity. (2) On a liquid phase method, the effect of the gravity on crystal structure and grain morphology was studied for synthesis of CdS fine grains. (3) On technological development of composite materials, the solidification experiment of Cu-In-Se melt was conducted under short time microgravity of 10{sup -4}g for 10 sec. As a result, more uniform texture and more high crystallinity were obtained under microgravity, and In in melt was concentrated by surface tension effect. It was suggested that high-quality CIS thin films will be obtained by Se doping into Cu-In composite films under microgravity environment.

  15. 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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    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.

  16. FY 2000 Research and development project for creation of the standards. Standardization of information-providing technologies for establishing human/machine interfaces; 2000 nendo kijun sosei kenkyu kaihatsu jigyo seika hokokusho. Hito to kikai no interface kochiku no tame no joho teikyo gijutsu ni kansuru hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    This survey/test/research project is aimed at standardization of providing information smoothly while securing safety for various types of drivers by introducing advanced technologies into vehicles.The methods of evaluating priorities of 105 items of information for drivers, which are taken up by ISO, are followed to find that 5.90, 2.05 and 0.11 items are selected for the alarm, route guiding and general information systems, respectively. These results are in agreement with the related literature survey results. The test results of the visual/auditory displays corresponding to the priority information types indicate that the adequate alarm displays are 'red/50nt/0.2 seconds, 30% frequency/6.0 degrees' for the visual sensation, and '80dB/2.0KHz+1.5 harmonics/0.2 seconds, 70% frequency' for the auditory sensation. The study on information volume and information recognizing time indicates that the symbol pattern is better than the letter pattern for the simultaneous display of up to 2 items learned beforehand. The others studied include alarm designs and management of two or more alarms. (NEDO)

  17. Report of the results of the fiscal 1997 regional consortium R and D project. Regional consortium field / R and D on downsizing technology of machine tools (first fiscal year); 1997 nendo chiiki consortium kenkyu kaihatsu jigyo. Chiiki consortium energy bun`ya / kosaku kikai no downsizing gijutsu ni kansuru kenkyu kaihatsu (daiichi nendo) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The R and D were conducted aiming at downsizing machine tools by combining microfactory technology owned by Mechanical Engineering Laboratory, Agency of Industrial Science and Technology of MITI with fundamental element technology owned by industrial groups of machine tools. In fiscal 1997, as to the study of spindle drum indexing mechanism in making main spindle multiaxial, the following have been finished: the basic study through openness of controller and networks, confirmation of function of the equipment acquired, and initialization of the driver software. Relating to the study on machining conditions of dry machining processing, delivery and installation of cold air machining instrument have been finished. Concerning the optical measurement of spindle radial run-out vectors, a system to make optical no contact measurement of radial direction components of rotation error was constructed with high accuracy pin gauge attached to the work spindle clamp mechanism as a medium. About the study on sensor-based state recognition technology, specifications for various kinds of sensor were decided on. 5 refs., 67 figs., 3 tabs.

  18. FY 1999 Report on the technical results. Research and development project for creation of the quick-effect type international standards (Standardization in the field of safety of machinery); 1999 nendo sokkogata kokusai hyojun sosei kenkyu kaihatsu jigyo seika hokokusho. Kikai anzensei ni kakawaru hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    It is necessary to standardize the concepts and terminology of safety, design principles, protection and technology for evaluation of safety over a wide range including designs and specifications, in order to secure safety of the users. The international standardization has been promoted, based on the European voluntary standards EN. It is necessary for Japan to propose the international standards reflecting the industrial environments of Japan, in order to keep and expand her international competitiveness. Those technologies developed for the above purposes include the safety-related ones based on the Japanese electronic technologies, electronized operation-controlling technologies with dynamic fail safe signal processing, DC power supply circuit with a failure-sensing circuit, opto-ultrasonic hybrid type personal sensing device and pressure-sensitive mat sensor, emergency stop devices having no electrical contact to eliminate the contact fusing risk, and video camera system which facilitates emergency stop action of machinery. These results are submitted to the related technical committees of ISO or IEC. A total of 46 items of the international standard proposal drafts related to IEC/TC44 are also submitted. (NEDO)

  19. Fiscal 1998 research cooperation promotion project (total evaluation) report. Research cooperation on the machine translation system between neighboring countries / research cooperation on recovery technology of valuable resources in brine / research cooperation on effective use of unused metal resources; 1998 nendo kenkyu kyoryoku suishin jigyo (sogo hyoka) hokokusho. Kinrin shokokukan no kikai hon'yaku system ni kansuru kenkyu kyoryoku, kansuichu no yuka shigen kaishu gijutsu ni kansuru kenkyu kyoryoku, miriyo kinzoku shigen no yuko katsuyo ni kansuru kenkyu kyoryoku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This report outlines the research cooperation system between Japan and developing countries promoted by MITI and NEDO, and the titled 3 projects and their total evaluation results. In the 1st project, the research institutes of 5 countries including Japan promoted jointly the novel computer-aided machine translation system of each language through the intermediate language. In the 2nd project, based on the resource survey on brine in Mexico and China, studies were made on the integrated precipitation recovery method of Mg and K in Mexico, and the adsorption recovery method of Li in China. In the 3rd project, the efficient recovery method of Au and Ag from difficult-to-treat pyrites was developed by combining bacteria leaching treatment with chemical treatment. The result and contribution of these projects are in high appreciation of every country. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

  1. Eradication of sweet potato weevil using Co-60 gamma radiation

    International Nuclear Information System (INIS)

    Tokunaga, Taizo

    2007-01-01

    Sweet potato weevil which is a harmful insect injuring sweet potatoes was found out at Yoron Island in 1915 for the first time in Kagoshima prefecture, Japan. Here the eradication of sweet potato weevils using cobalt 60 irradiation achieved at Kikai Island is described. The mass-reared male weevils in potatoes are in pasture after sterilized by gamma irradiation. If the sexually sterile male copulates with a wild female, the egg does not incubate. By the repeated sterilization during several generations, the eradication of sweet potato weevils was accomplished. (M.H.)

  2. 鬼界カルデラにおけるアカホヤ噴火以降の火山活動史

    OpenAIRE

    前野, 深; 宮本, 毅; 谷口, 宏充; Fukashi, MAENO; Tsuyoshi, MIYAMOTO; Hiromitsu, TANIGUCHI; 東北大学大学院理学研究科; 東北大学東北アジア研究センター; 東北大学東北アジア研究センター; Graduate School of Science, Tohoku University; Center for Northeast Asian Studies, Tohoku University; Center for Northeast Asian Studies, Tohoku University

    2002-01-01

    Kikai Caldera, 17km wide and 20km long, is a Quaternary volcano located in the East China Sea 40km southwest of Cape Sata, southern Kyusyu. The caldera is nearly submerged in the sea. Two volcanoes, Iwo-dake (rhyolitic volcano) and Inamura-dake (basaltic volcano), on Satsuma-Iwojima Island at the marginal part of this caldera grew up after the large caldera-forming eruption of 6300 y.B.P. known as the Akahoya Eruption. The purpose of this study is to understand the geological feature of Iwo-d...

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

    Science.gov (United States)

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

    2008-12-01

    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.

  4. Preparation of function-enhanced vegetable oils

    Directory of Open Access Journals (Sweden)

    Hiroshi Maeda

    2016-01-01

    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