Sample records for atarashii doshigen shori

  1. Development of novel processes for Cu concentrates without producing sulfuric acid; Hiryusan hasseigata no atarashii doshigen shori gijutsu no kaihatsu

    Nakamura, T.; Noguchi, F.; Takasu, T.; Ito, H. [Kyushu Inst. of Technology, Kitakyushu (Japan). Faculty of Engineering


    In the refining process for the production of copper from pyrites, heat treatment is carried out in a neutral atmosphere so that part of the sulphur will be collected in the form of simple sulfur and that pyrites naturally low in reactivity will be made active. A basic study is also conducted of a very high speed electrolytic method. The chemical aspects of pyrites which are various in composition (mainly CuFeS2) are clarified by X-ray diffraction, and then is subjected to heat-treatment in a 773K-1073K argon atmosphere. There is a decrease in the amount of sulfur at a temperatures not lower than 973K. The X-ray main diffraction line splits for the emergence of some lower angle diffraction lines. The specimen is then subjected to a leach test in a copper chloride base liquor, to disclose that leachability grows remarkably higher in the presence of a great change in the X-ray diffraction lattice constant. An experiment follows in which an electrolyte is allowed to flow at a high speed for accelerating the rate of electrolytic refining in an effort to prevent the passivation of anode and deposition of dendrite on the cathode that is apt to occur when the current density is high. Passivation is prevented when the flow rate is 10m/min or higher in the vicinity of the anode surface for the formation of a smooth electrodeposited surface. 2 refs., 2 figs., 2 tabs.

  2. Development of novel processes for Cu concentrates without producing sulfuric acid; Hiryusan hasseigata no atarashii doshigen shori gijutsu no kaihatsu

    Awakura, Y.; Hirato, T. [Kyoto University, Kyoto (Japan)


    Studies are conducted to develop a new wet method for copper concentrates to replace the conventional dry smelting method for the settlement of problems involving the processing of impurities for environmental protection. A specimen of pyrites polycrystals is subjected to leaching at 80 {degree}C in a strongly acidic cupric solution. Findings are that the element sulfur generated in this process does not impede leaching and only approximately 4% of the sulfur is oxidized into sulfur ions; that the presence of more than 2g/liter of bromide ions produced during bromine-aid leaching of gold changes the structure of sulfur for the inhibition of leaching; that circulation of a bromine-containing leaching liquid is not desired since even a small amount of approximately 0.02mol/liter inhibits the leaching rate. Controlled potential electrolysis is performed for the anode in an acid solution containing CuCl, NaCl, and NaBr, for the observation of oxidation/reduction potentials predicted by Nernst`s equation. It is then disclosed that bromine is more effective than chlorine in gold leaching and that the solution potential during leaching agent regeneration enables the monitoring of solution constitution. 2 refs.

  3. New trends in biotechnology. Biotechnology no atarashii choryu

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


    This paper focuses on application of the recent biotechnology and introduces its new trends. What has triggered the boom in the application is when the technology has been applied to medicines in the 1970's. Beginning with insulin and interferon, various fibrinolytic agents including tPA and monoclonals have been put on markets one after another in 1991. Progress in humangenomic analysis has led to implementation of gene therapies and diagnoses using genes on gene diseases. Sweeteners used in a large quantity in the foodstuff field are fructoses made by isomerizing glucose produced by using enzymatic bioreactors. Needless to say about production of amino acid, organic acids, saccharides, antibiotics, steroids, and nucleic acid-based compounds by using enzymatic bioreactors, chemicals including acrylic amide from acrylonitrile, enzyme detergents, and bio-herbicides are available commercially. Progress in the technology is seen in all of the fields, including electronics industry and environmental preservation. 6 refs., 4 figs.

  4. Leading research on brainware; Nokino joho shori no sendo kenkyu



    Leading research on brainware is conducted to realize the engineering information processing based on the learning, memorization, association, intuition, value judgment, and motivation which are activities of human brains. For the highly integrated information society at the 21st century, it will be essential to establish human-like information processing technology which is considered to be difficult with the conventional computers. The R and D theme for this technology will focus on the development of novel devices and systems by eliciting the principles and key roles of information processing functions of the brain and in living organisms from both viewpoints of the science and engineering and the brain information science. It is considered that important research targets are in elucidating brain functions and the modeling and developing novel devices and systems, such as brain information architecture, neural devices, neural networks, and man-machine interface. Technical trend surveys in the USA, the UK, and Germany were also conducted. 347 refs., 58 figs., 7 tabs.

  5. Mercury inclusion a waste processing; Suigin ganyu haikibutsu no shori



    BNL (Brookhaven National Laboratory) developed process (SPSS) which granularly stabilized the mercury contamination material including the radioactive material. In the SPSS Inc. method, the sulfur similarly is made to react on the mercury with the amalgamation, and mercury sulfide of low vapor pressure is formed at the low solubility. In the new process, in this amalgamation, the dispersion of the fine powder becomes a problem, and the pollutant mixes with 'the sulfur (95%)-dicyclopentadiene (5%) mixture', and it pours in melting post-container heated to 120 degrees C. The possible uniform composition lump fixes mercury and radioisotope as the result. 200 of the EPA standard in the product by the pilot study the 0.5-3ppb mercury which drastically fell below ppb was contained. In addition, BNL has planned the test operation in the commercial. In the future, the processing of a mercury inclusion waste in the radioactive waste disposal authorization facilities will become possible, if the actual/real process is established. (translated by NEDO)

  6. 戦後美術教育論の検討 : イメージと感情の発達研究へ

    山田, 康彦


    This papey aims to point out the new direction needed in the study of art education through reviewing the arguments presented by "Sozobiiku-Kyokai," "Atarashiie-no-kai" and "Bijutsu-kyoiku-o-susumerukai." The point in the controversy between "Sozbbiiku-kyokai" and "Atarashiie-no-kai" was, after all, how to comprehend the relation between cognition and feelings. "Bijutsukyoiku-o-susumerukai" lays stress on the developmental study of images and imagination. Sakae Ikeda of "Atarashiie-no-kai" at...

  7. Micro-chemistry. New current in chemistry; Maikuro kagaku. Kagaku no atarashii choryu

    Masuhara, H. [Osaka University, Osaka (Japan). Faculty of Engineering


    In achieving artificial reaction in micrometer orders as in reactions in cells of living organisms, several results have been obtained in its specific methods. These results lead to an expectation on search and elucidation of new chemical phenomena, and development to structuring micro-chemical systems. This paper illustrates the basic conception thereof, and a large number of examples of the methods. Researches on the methods may be represented by a large number of results as follows: a position with as high reactivity as 3 {mu} meters in resolution has been utilized by utilizing the fact that such reaction intermediates as radicals and ions are produced with long life during laser explosion and erosion of polymers, for example; micro selective growth of CVD thin films was realized by using a lithographic method; developing an electrochemical reaction only beneath a chip under an scanning electrochemical microscope has produced successfully a space distribution of 0.5 {mu} meter in a reaction product; and optic-chemical processing of microfine particles and micro time analysis were performed successfully. 1 ref., 5 figs.

  8. Synthesis of heterocycles from disubstituted cyanamides; Fukugokan kagobutsu no atarashii goseigenryo toshiteno jiokikaeshianamido

    Shibuya, I [National Institute of Materials and Chemical Research, Tsukuba (Japan)


    Authors have studied on the reactivity of disubstituted cyanamides as comparison with nitriles, and researched the possibility as starting materials for synthesizing heterocycles containing nitrogen for the last decade. As the result, many new reactions, not observed in nitriles, have been developed as shown in the below, and it was found that the disubstituted cyanamides are usefull materials for synthesizing heterocycles. At first, in compressed liquid phase (500{approx}800MPa), the reaction with amidoximes or N-substituted formamides afforded 1,2,4-oxadiazoles (2,3) or 2-substituted amino-4, 6-bis (di-substituted amino)-1,3,5-triazines with liberation of secondary amines. respectively. In the reaction with carbon disulfide, 4-thiocarbamoyl amino-1,3,5-thiadiazines, (6) were obtained in one-pot. In the initial stage of the reaction, thiocarbamoyl isothiocyanates, an adduct of carbon disulfide and a disubstituted cyanamide, seem to have been formed. On the other hand, the reaction with aryl isothiocyanates gave 2-disubstituted amino-quinazolines (13), and the reaction mechanism was also discussed. Next, the reaction with the organic cations was examined. Disubstituted cyanamides react with (dichlormethylene) dimethylammonium chloride to give 1-(disubstituted amino)-3- dimethylamino-1,3-dichloro-2-azapropenium chlorides, and these products were applied to the synthesis of heterocyclic cations containing S or Se (14,15,16, and 17). Thiocarbamoyl anilides were desulfurized by using a silver salt in the presence of a disubstituted cyanamide to give 4-disubstituted aminoquinazolines (18) in good yields. (author)

  9. Synthesis of new erodable polymers response to environmental stimuli; Atarashii kankyo chowagata bunkaisei plastic no kaihatsu

    Kato, M.; Nagasaki, Y. [Science University of Tokyo, Tokyo (Japan). Faculty of Industrial Science and Technology


    This report relates to the designing of functional materials that decompose in response to various signals. A derivative of {alpha}-bromomethylstyrene is caused to act on the living anions of {alpha}-methylstyrene for the synthesis of a pyrolytic polymer having unsaturated groups at its terminals. The terminal double combinations of this polymer split under the influence of heat, acid, or base for depolymerization which is quantative, and the decomposition temperature may be controlled by replacing terminal phenylallylic groups with methyl groups or phloro-groups. Furthermore, a novel polythyramine polymer is synthesized with its principal chain constituted of NCH2CH2Si, the principal chain easy to disintegrate when exposed to an electron beam. The polymer is signal-responsive and may be patterned by use of an electron beam. As a temperature-responsive polymer with the hydrolytic feature controlled, poly(thyroxy ethylene glycol) is obtained from a derivative of diaminosiloxane and oligo-oxyethylene. This is a high-mobility, temperature-responsive material whose hydrolysis may be controlled. 3 refs., 2 figs.

  10. Reactivities of acid and/or tetralin pretreated Wandoan coal for a Curie point flash pyrolysis; Sanzen shori, tetralin yobaimae shori Wandoan tan no kyusoku netsubunkai

    Kishino, M.; Sakanishi, K.; Korai, Y.; Mochida, I. [Kyushu University, Fukuoka (Japan). Institute of Advanced Material Study


    Discussions were given on effects of acid pretreatment and tetralin swelling in Wandoan coal on a Curie point flash pyrolysis (which used a Curie point pyrolyzer). Residue yield loss effects were obtained at 3.9% in hydrochloric acid pretreatment, and 6.2% in acetic acid pretreatment. The effects of tetralin swelling pretreatment were compared in the similar manner in terms of the residue yield loss. The effects were 4.0% in untreated coal, 2.0% in the hydrochloric acid pretreatment, and 0.6% in the acetic acid pretreatment. It is thought that components that can be activated by acetic acid have already been activated, but the remaining components would not be activated by tetralin. Average microporosity (area) in the remaining particle as a whole shows very little difference both in acetic acid pretreated coal and untreated coal. However, with the acetic acid pretreatment, pores smaller than 4{mu}m{sup 2} disappeared, and pores as large as 205 to 411{mu}m{sup 2} increased largely. This phenomenon was observed as an increase in foaming degree under microscopic observation, even if the average microporosity remains equal. Thermoplasticity of the coal increased, and so did volatilization reactivity as a result of the acetic acid pretreatment, resulting in appearance of a large number of large pores. 6 refs., 2 figs., 2 tabs.

  11. Suppression of numerical dispersion using FD modified operators; Atarashii sabunho no enzanshi wo mochiita suchi bunsan no yokusei

    Takeuchi, N.; Geller, R. [The University of Tokyo, Tokyo (Japan). Faculty of Science


    The author, et al., have developed a formal evaluation theory for errors in numerical solutions and derived on the basis of this theory the conditions that a modified error minimizing operator should satisfy. A modified operator was derived for a calculus of finite difference in the time domain making use of this error evaluation theory. In this study, a modified operator was derived for O (2, 2) in the calculus of finite difference in time, and the operator was used in the calculation for the old and new methods about 1-dimension inhomogeneous media, and the two were quantitatively compared in CPU time and calculation accuracy. The calculation used 500 space grids and 5000 time grids. With the ratio of the time grid gap and space grid gap are kept constant, both CPU time and calculation accuracy were in proportion to the square of the number of grids. It was found in view of the result that the new method, as compared with the old method, needs only approximately 1/20 of CPU time in performing calculations of the same precision and that it maintains calculation accuracy that is approximately 20 times higher in the said CPU time. 4 refs., 2 figs., 1 tab.

  12. Relationship between stacking process and resolution; Jugo shori to bunkaino ni kansuru kiso kenkyu

    Matsushima, J.; Rokugawa, S.; Kato, Y. [Geological Survey of Japan, Tsukuba (Japan); Yokota, T.; Miyazaki, T. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering


    This paper evaluates influences of stacking of incident angles against the reflecting surface on the resolution. Basic equations for evaluating the influences were deduced. A simple evaluation method has been provided using these equations. The present evaluation method is considered to be useful for acquisition design, processing, and interpretation of data as an indicator. According to the equations introduced in this study, there are some demerits for stacking traces whose incident angles were large. A total reflection region often appears due to the decreased resolution, and the vertical resolution decreases prior to stacking. Occasionally, it is not effective to remove traces having large incident angles from the viewpoint of resolution. In practice, the selection of most suitable trace through trial and error is not easy due to difference in individual regions. An evaluation method must be discussed, by which the optimal trace can be selected automatically during the data processing. 6 refs., 15 figs.

  13. CAD/CAM-mathematical models and information processing. CAD/CAM-sugaku model to joho shori

    Kimura, F. (The Univ. of Tokyo, Tokyo (Japan). Research center for advanced Science and Technology)


    Works concerning industrial product design and production design are comprehensive works and it is said that its technique has not been systematized and there are many aspects of relying on human creativity and experience in the past. On the other hand, technological theories are the works of analysis and have well been developed based upon scientific academic systems. In the field of designing, standardized design procedures, etc. have been enciphered and its computerized automation has been progressed, but in normal design works including new design to a certain extent, its design procedures cannot be made as mathematical models, consequently its automation is obliged to base on an information processing model. The models which can express comprehensively all technical information concerning products necessary for design and production of industrial products are called product models. In this article, product modelling is roughly explained and the features of numerical models in CAD/CAM (computer assisted automation of mechanical design and production) are discussed taking geometrical modelling as a subject for discussion. 5 refs., 4 figs.

  14. Introductory study of brain function data processing; No kino joho shori no sendo kenkyu



    An investigational study was conducted of the brain function aiming at developing an interface with the same function as humans have. In the study, the most up-to-date information/knowledge and future problems were examined on brain measurement, brain modeling, making a model an element, and the brain function data processing system. As to the brain measurement, the paper took up the multielectrode simultaneous measuring method and the optical multipoint measuring method as an invasive measuring method, and the functional magnetic resonance imaging, near-infrared spectroscopy, magneto-encephalography, and electro-encephalography as a non-invasive measuring method. Relating to the brain modeling, studies were made on senses of sight and smell, the movement control and the learning. As to making a model an element, how to make the modeled function a chip on silicone for example becomes the problem. Reported were two reports on making the sense of sight an element and one report on making the parallel dispersed processing mechanism of brain an element. About the brain function data processing system, three reports were made on the present situation, matters in question, and the future development of the system in the case of catching data processing as a system taking a step ahead from making the model an element. 250 refs., 74 figs., 11 tabs.

  15. Heightening in efficiency of biological treatment by additives. Tenkazai ni yoru seibutsu shori no koritsuka

    Ishikawa, M. (Fukui Institute of Technology, Fukui (Japan))


    The activated sludge process and other biological treatments, though utilized for most sewerage and drainage water disposals, often necessitate the maintenance to be managed with a professional knowledge so that confrontation is oftem impossible with trouble in management. In the present report, different basic studies are to be introduced of microbial activation by an addition with saponin. Saponin'', etymologically identical with savon'' and soap'', has been being used as natural cleaner, emulsifier and foamer in South America and Europe since olden times, and is used also for the processed food and potable water in the USA. The present experiment concluded that, in case of using it as microbial activator, the activated sludge can be considerably increased in load quantity of disposal by the heightening in oxygen-supplying power, high concentration microbial maintenance, microbial activation, etc. In the future, there will remain many problems unsolved such as what is the optimized condition for the addition depending upon the condition of base material. 3 refs., 6 figs., 1 tab.

  16. 3D pre-stack time migration; Kiruhihoffuho ni yoru sanjigen jugo mae jikan migration shori

    Nakajima, Y.; Matsuoka, T. [Japan Petroleum Exploration Corp., Tokyo (Japan); Tsuru, T. [Japan National Oil Corp., Tokyo (Japan)


    This paper reports pre-stack migration in elastic wave exploration as to its algorithm and examples of processed data. The time migration processing hypothesizes that seismic waves propagate linearly. It calculates travel time by dividing the sum of the straight distance from a vibration transmitting point to an image point and the straight distance from the image point to a vibration receiving point with RMS velocity given as a parameter. To maintain the relative relation of amplitude sizes, the signal on an elliptic body is made smaller in inverse proportion to the size of that elliptic body. With regard to apparent interval of input trace as seen from the reflection surface, or with regard to density, the signal is made smaller by cos{theta} times. While this program deals with three-dimensional migration, its output turns out as an arbitrary two-dimensional plane. The program requires a huge amount of data processing, whereas a method is used, that the input trace is divided, each group is processed by using separate computers, and the results are summed up. 3 refs., 4 figs.

  17. Leading research on brain functional information processing; No kino joho shori no sendo kenkyu



    This research aims at searching the concept of an information processing device with a fully different architecture from a previous ones based on the study on human brain function, sense and perception, and developing the basic fabrication technology for such system, and realizing the human-like information processing mechanism of memorization, learning, association, perception, intuition and value judgement. As an approach deriving biological and technological models from experimental brain studies, the model was derived from the brain functional information processing based on brain development/differentiation mechanism, the control mechanism/material of brain activities, and the knowledge obtained from brain measurement and study. In addition, for understanding a brain oscillation phenomenon by computational neuroscience, the cerebral cortex neural network model composed of realistic neuron models was proposed. Evaluation of the previous large-scale neural network chip system showed its ability of learning and fast processing, however, the next-generation brain computer requires further R and D of some novel architecture, device and system. 184 refs., 41 figs., 2 tabs.

  18. Efficient information processing of driver. Untensha joho shori no koritsuka ni tsuite

    Kamiya, K. (Mitsubishi Motor Co. Ltd., Tokyo (Japan))


    In this article, in order to pursue the optimatization of the man-machine-environment system on the basis of human character with the objective of securing safety while an automobile is in use, efficient driver'{prime}s information processing is chozen for study, examples of driver'{prime}s information processing models based on the physiological mechanism, etc., the concept of efficient information processing by these models and its concrete application examples are explained, and the future themes are also commented. First, the already established confirmation through experiments is pointed out that the reduction of accidents by 60-90% can be achieved by shortening the reaction time of a driver by one second, and such driver'{prime}s information processing as perception, recognition and judgement of his brain is deemed an important issue. Improvement of efficiency of the information processing is promoted by a physiological study on the information processing module on the basis of brain functions, and as its concrete examples, reduction of stress while turning and improvement of efficiency off adjustment of driving position are explained, then the issues in the future are touched upon. 6 refs., 13 figs., 1 tab.

  19. Kyowa corporation: With high temperature carbon, waste disposal; Kyowa kopo: koon tanso de haikibutsu shori



    The Kyowa corporation of the environment machine developed the device 'Cosmorobo' which vaporized which made waste harmless under oxygen-less condition in the super-high temperature of 3000 degrees C. The super-high temperature management to put the spark of the luminous body made of carbon to practical use for the first time was made possible. Dioxin is a poisonous compound. Inside air after the cessation of business thing injection is absorbed with a pump, and a device is almost kept in the vacuum condition of 1% and under of oxygen containing rates. The luminous body made of carbon of a diameter 2-3cm, which carbon was condensed to be spread inside the device, and a spark phenomenon is caused in a few gaps between each luminous body by energizing. Waste is pressed against the spread luminous body made of carbon from the top, and it vaporizes waste even in the harmless molecule level from the viewpoint of moment. Because it is oxygen-less, heat conduction isn't given. Unless it touches a luminous body made of carbon directly, heat isn't conveyed, and a thermostability structure like a usual burning device is unnecessary for the device itself. A device could be miniaturized drastically, the simplification, and a price could be reduced, too. (translated by NEDO)

  20. In situ observation of skin. Novel photoacoustic spectrometric approach; Hikari to oto de hifu wo miru. Hikari onkyoho ni yoru atarashii apurochi

    Takamoto, R. [Shiseido Co. Ltd., Tokyo (Japan)


    Author`s work is introduced on the title approach for in situ determining and evaluating percutaneous absorption of test substances as medicines into living human skin, precisely, easily, fast and safely. The research has been conducted with the following concept in order to remove noise that occurs when heat emitted on photo-absorption of substances into skin is tried to be determined by means of sonic waves transmitted by heat, and to develop sensors sensitive only to sound to be measured. First, since noise sounds such as pulse, environmental sounds distribute in a frequency range of tens to hundreds Hz, differentiation of sounds should be tried by making a frequency of photoacoustic(PA) signal high enough not to be affected by those noise. Second, PA cell structure should be designed to be resonate at specific, optimum frequency so as to be high-sensitive only to sounds that turn to PA spectrometric(PAS) signals. Third, noise components that intervene in spite of the above provisions should be subtracted. The acoustic cell of double resonance differentiation type that was developed according to the above concept was proved to be so excellent in the ratio of PAS/noise signals as 118. 8 refs., 2 figs.

  1. Development of the hull inspection robot (RTV-SHIP); Sentai kensayo suichu robot (RTV-SHIP) no kaihatsu (atarashii sentai kensaho no ichiteian)

    Nakata, Y.; Otsuka, M.; Ozawa, H.; Konosu, M. [Mitsui Engineering and Shipbuilding Co. Ltd., Tokyo (Japan)


    A compact and lightweight underwater RTV robot (RTV-SHIP) that enables the remote sensing in the double-shell structure of a tanker and the six-freedom motion control was developed based on the technology of the conventional portable underwater robot. The motion performance test in a water tank showed that the RTV-SHIP can freely access the manhole in the double-shell structure of a tanker and completely satisfies the thrust and swing force required for movement and measurement in a tank. The in-tank function confirmation test also shows that the main measurement items such as positioning in the tank, large deflection of panels, and plate thickness have a satisfactory measurement accuracy and that the RTV-SHIP has the same tone discrimination function as for a visual check. The method of inputting the tank shape during measurement and miniaturizing the recording unit should be improved until the RTV-SHIP is put to practical use. This system can be widely used by improving the above points according to the result of a future measurement test for the actual ships. 1 ref., 9 figs.

  2. Travel time and ray path computation in 2D-heterogeneous structures; Fukinshitsu kozo ni okeru jishinha soji oyobi hasen no atarashii keisan hoho

    Fujie, G.; Kasahara, J.; Sato, T.; Mochizuki, K. [The University of Tokyo, Tokyo (Japan). Earthquake Research Institute


    Methods were studied for determining the initial travel time and ray paths with stability when an non-linear travel time inversion is performed in an inhomogeneous structure. The travel time calculation was based on Faria and Stoffa`s method. First, the 2-dimension space was sectioned by grids, and `slowness` was assigned to all the lattice points. Starting from the vibration source, travel time at each lattice point is sequentially calculated. This method calculates travel time for any structure without breakup. In this study, an algorithm more sophisticated than the method of Faria, et al., was developed, and the improvement of travel time calculation accuracy led to the accurate determination of the direction of incidence into the lattice points during the initial motion. The calculation of ray paths was effected by tracing back from the receiving points the incidence into the lattice points or by following back the ray paths to the vibration source. This method performs stable calculation for a heavily inhomogeneous structure and, with the algorithm being simple, do the parallel programming as well. 1 ref., 6 figs., 1 tab.

  3. New style of system business and reengineering of software engineering process; Atarashii system jigyo style to software sekkei no gyomu kakushin

    Minami, A.; Muto, K.; Dotemoto, A. [Toshiba Corp., Tokyo (Japan)


    Toshiba is promoting a new style of system business by business process reengineering (BPR), with the sales, engineering, and software development divisions acting in concert. Virtual task force teams are changing the styles of sales and engineering. They are supported by an intranet-based system for information management and C Solution, a new system architecture. (author)

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

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


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

  5. Development of new finite element by source method. 2nd Report. Plate bending element; Source wo mochiita atarashii yugen yoso no kaihatsu. 2. Itamage yoso

    Neki, I.; Tada, T. [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)


    This paper reports a method to develop a new finite element by source (FES) for a two-dimensional plane problem and a three-dimensional solid problem as a method to analyze ship body structures. The paper describes development of a plate bending element by using a similar method, and the fundamental principle thereof. The present method can prepare a finite element of an arbitrary shape by simply providing a contact point only on a boundary. It can also derive good calculation accuracy with less number of contact points and elements. These facts are shown by examples of analyses on a square plate, a triangle plate and a semi-circular plate. Particularly, since a plate bending problem has a large order of differential calculus in a governing equation, this method being a semi-analytical method derives a result with very good accuracy even with less number of contact points. A hypothetical boundary method or a hypothetical electric charge method presents not a very high accuracy even if a large number of contact points are provided. This is because the method hypothesizes only a bending moment vertical to the boundary, but does not consider a source of the moment relative to the boundary. In contrast, the present method hypothesizes both of bending and twisting as the sources, hence its accuracy is better than with the above two methods. 5 refs., 11 figs., 7 tabs.

  6. Structural changes in deashed coals induced by heat treatment; Kanetsu shori ni yoru dakkaitan no kozo henka

    Sugano, M.; Sekita, M.; Muramatsu, Y.; Mashimo, K.; Wainai, T. [Nihon University, Tokyo (Japan). College of Science and Technology


    Change in structures of 3 kinds of coals with different coal ranks and their deashed coals was studied by heat treatment below 200{degree}C. In experiment, crushed Adaro, Taiheiyo and Huaibei coals below 200mesh and their deashed coals were used as specimens. The coal and deashed coal specimens dried in vacuum at 110{degree}C for 3 hours were filled into an autoclave, and the heat-treated coal specimens were prepared by holding them under initial nitrogen pressure of 2kg/cm{sup 2} at a fixed temperature for 30min. Extraction using pyridine as solvent, volumetric swelling using methanol or benzene as solvent, and measurement of the amount of carboxyl and phenolic hydroxyl functional groups were conducted for these coal specimens. The experimental results are as follows. Huaibei coal has developed aromatic ring structure, and its structure is hardly affected by heat treatment. The oxygen containing functional groups decrease by heat treatment over 100{degree}C in Adaro coal and 150{degree}C in Taiheiyo coal, and PS, MQ and BQ also decrease due to aggregation between molecules. 5 refs., 2 figs.

  7. Data processing for the mise-a-la-masse survey; Ryuden den`iho tansa no data shori

    Hashimoto, K.; Mizunaga, H.; Ushijima, K. [Kyushu University, Fukuoka (Japan). Faculty of Engineering; Kaieda, H. [Central Research Institute of Electric Power Industry, Tokyo (Japan)


    Data processing method was studied for mise-a-la-masse survey. Mise-a-la-masse method using wells as current sources measures resultant ground surface potential difference, and detects underground local resistivity anomaly. To extract resistivity anomaly largely different from surroundings, the anomaly is extracted as difference between the estimated value of regular resistivity structure (background) and potential difference or apparent resistivity. The following three approximations were attempted to estimate the background: the theoretical equation assuming isotropic homogeneous resistivity structure, that assuming horizontal multi-layered structure and the exponential function of distance from linear electrode for apparent resistivity, and these were compared with each other by numerical model experiment. The data processing method which determines the resistivity structure of the background and the residual of apparent resistivity distribution by inversion analysis using the above second equation, could precisely extract local resistivity anomaly, and estimate the depth distribution of resistivity. 5 refs., 10 figs., 2 tabs.

  8. On the relationship between the irregular reflector and the data processing by stacking; Hanshamen keijo to jugo shori ni tsuite

    Matsushima, J.; Yokota, T.; Miyazaki, T. [Geological Survey of Japan, Tsukuba (Japan); Rokukawa, S. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering


    An examination was made on the possibility of data processing by stacking with scattered waves assumed in a seismic exploration analysis (diffraction stacking method). In the examination, a CDP stacking method and the diffraction stacking method were compared through numerical experiments in the case of imaging a flat reflection surface and an irregular reflection surface. As a result, it was revealed that the CDP stacking method for stacking mirror reflection waves was merely a processing to raise S/N ratio while the diffraction stacking method for stacking with scattered waves assumed contained a migrational aspect as well as an aspect to raise S/N ratio. Consequently, it was shown that, if an oscillator was properly arranged, a structural imaging was possible not by the shape of a reflection surface but by the diffraction stacking method. Additionally, the diffraction stacking method revealed that the imaging effect varied by frequency with the stacking effect decreased at high frequencies, and that no stacking effect decreased at low frequencies but resolution lowered in horizontal direction. 4 refs., 8 figs.

  9. On the relationship between stacking process and resolution. 2; Jugo shori to bunkaino ni kansuru kiso kenkyu. 2

    Matsushima, J.; Rokugawa, S.; Kato, Y. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Yokota, T.; Miyazaki, M. [Geological Survey of Japan, Tsukuba (Japan)


    With respect to concept of resolution in seismic exploration using the reflection method, detailed considerations were given on processes of forming the resolution as a result of arranging observation points at vibration transmitting and receiving points. In the discussion, numerical experiments were carried out, in which the scattering stacking process is applied in a model having one scatterer existing in homogeneous media. The experiments investigated an imaging formation process of the scatterer when arrangement of the vibration transmitting and receiving points were changed from a coarse condition to a dense condition while the number of transmitting and receiving points is being increased. Resolution is created if waveforms having finite frequencies are used as input, and the imaging is performed by utilizing the limited number of vibration receiving and transmitting points. If the concept of equi-travel plane is used under these conditions, the equi-travel planes perform negation with each other, and it was indicated that visual resolution is expressed by how good the negating effect is. It was discovered that such concept of the resolution is quite ambiguous in terms of engineerings. 2 refs., 17 figs.

  10. Relative amplitude preservation processing utilizing surface consistent amplitude correction. Part 3; Surface consistent amplitude correction wo mochiita sotai shinpuku hozon shori. 3

    Saeki, T. [Japan National Oil Corporation, Tokyo (Japan). Technology Research Center


    For the seismic reflection method conducted on the ground surface, generator and geophone are set on the surface. The observed waveforms are affected by the ground surface and surface layer. Therefore, it is required for discussing physical properties of the deep underground to remove the influence of surface layer, preliminarily. For the surface consistent amplitude correction, properties of the generator and geophone were removed by assuming that the observed waveforms can be expressed by equations of convolution. This is a correction method to obtain records without affected by the surface conditions. In response to analysis and correction of waveforms, wavelet conversion was examined. Using the amplitude patterns after correction, the significant signal region, noise dominant region, and surface wave dominant region would be separated each other. Since the amplitude values after correction of values in the significant signal region have only small variation, a representative value can be given. This can be used for analyzing the surface consistent amplitude correction. Efficiency of the process can be enhanced by considering the change of frequency. 3 refs., 5 figs.

  11. Explosive treatment of Illinois No.6 coal with a mixed solvent of water and cyclohexanol; Mizu-cyclohexanol kongo yozai ni yoru Illinois tan no bakusai shori

    Hashimoto, T.; Takada, H.; Asami, K.; Yano, M. [Osaka City University, Osaka (Japan). Faculty of Engineering


    Coal was treated at high temperature under high pressure in the binary system mixed solvent of water and organic solvent, and the solvent treated coal was liquefied. When the treated coal was treated again by the explosive method in which high temperature and pressure were released immediately, the oil yield was higher than that by the normal method in which high temperature and pressure were reduced gradually to room temperature and atmospheric pressure. In this study, an explosive treatment unit with increased scale of sample amount was newly fabricated. Illinois No.6 coal was treated by the explosive method in a mixed solvent of water and cyclohexanol using this unit. Changes in shape on the surface, specific surface area, and functional groups were analyzed. The explosively treated coal contained more amount of low boiling point components than the normally treated coal. It was suggested that the oil yield of explosively treated coal increased due to the liquefaction of these components during the successive hydrogenation process. For the explosively treated coal, micro pores were fractured by the rapid change in the volume of solvent molecules, and the specific surface area was smaller than that of the normally treated coal. When the treatment temperature was increased from 300{degree}C to 350{degree}C, specific surface areas of both the treated coals increased. 2 refs., 3 figs., 2 tabs.

  12. Effect of heat treatment changes on swelling treatment of coal; Sekitan no bojun shori sayo ni oyobosu netsushori henka no eikyo

    Satsuka, T.; Mashimo, K.; Wainai, T. [Nihon University, Tokyo (Japan). College of Science and Technology


    Discussions were given on effects of heat treatment at relatively low temperatures as a pretreatment for coal liquefaction on coal swelling and hydrogenolysis reaction. Taiheiyo coal was heated to 200{degree}C for one hour as a pretreatment. The attempted heating methods consisted of four steps of rapid heating (6.7{degree}C/min)quenching (20{degree}C/min), rapid heating/natural cooling (0.7{degree}C/min), heating (1.0{degree}C/min)/quenching, and heating/natural cooling. The swelling treatment was composed of adding methanol benzene into heat treated coal, and leaving it at room temperature for 24 hours. The hydrogenolysis was carried out by using a tetralin solvent and at an initial hydrogen pressure of 20 kg/cm{sup 2} and a temperature of 350{degree}C and for a time of one hour. Hydrogenolysis conversion in the heat treated coal was found lower than that of the original coal because of generation of liquefaction inactive components due to thermal polymerization. When the heat treated coal is swollen by using the solvent, gas yield from the hydrogenolysis reaction decreased due to gas suppression effect, and the conversion was lower than that of the original coal. Heat treatment suggests densification of the coal structure. Swollen coal shows no conspicuous difference in the heat treatment methods against the hydrogenolysis due to the swelling effect. 3 refs., 5 figs., 1 tab.

  13. Application of spinel carbon material to stopper for casting Ca treated steel; Ca shori ko chuzoyo sutoppa eno supineru/kabon zaishitsu no tekiyo

    Kominami, T.; Watanabe, S.; Sumida, K. [Kobe Steel Co. Ltd., Kobe (Japan); Mori, E. [Shinagawa Refractories Co. Ltd., Tokyo (Japan). Technical Lab.; Nakamura, M.; Iida, E.; Otani, T. [Shinagawa Refractories Co. Ltd., Tokyo (Japan)


    Morphological control of inclusion in steel by Ca addition is executed widely in continuous casting field as an effective means to prevent the blocking up of nozzle due to alumina adhesion. Corrosion of Ca treated steel to Al2O3-C based material is strong, so in general ZrO2-C brick is used. However, ZrO2-C and MgO-C bricks received Ca treated steel has bad influent upon steel due to the variety of composition of inclusion caused by the reaction between brick constituting particles and inclusion in molten steel. In this paper, the details of the development of spinel carbon-stopper is described from the viewpoint of the reaction between the inclusion of molten steel and refractories. High strength and reinforcement of matrix is attempted by using said stopper using theoretical spinel material and highly residual carbon binder. Decrease of inclusion defect of steel is confirmed by the application of said spinel carbon material to the stopper for casting Ca treated steel. 4 refs., 10 figs., 2 tabs.

  14. Porting of ship hull structure CAD/CAM system to distributed processing. Senkaku CAD/CAM system no bunsan shori eno iko ni tsuite

    Tsuru, H.; Okazaki, M. (Hitachi Zosen Corp., Osaka (Japan))


    This paper introduces advantages of executing distributed processing in a ship hull structure CAD/CAM system, and summarizes its data base management system. A CAD/CAM system can cause a problem of aggravation in response speed in association with expanded application, attributable to a central processing system. To solve this problem, the CAD/CAM system was transplanted to an engineering workstation (EWS) and transferred to distributed processing by means of a network system. As a result, the processing speed in one EWS was improved to 2.6 times to 1.5 times as fast as in one super minicomputer. A ship hull structure CAD/CAM system comprising two data servers and 26 EWS has increased its processing amount to about 45 times. In this system, the communications between the data servers and clients have a close relation with the data base management. It is important for operation efficiency to reduce the number of communications to a minimum necessity for consideration of the response speed. Local buffering is adopted at SCON. 7 figs.

  15. Wastes disposal on board a ship. Apparatus to decompose and annihilate wet refuses bionically; Senjo no haikibutsu shori. Namagomi no bio bunkai shometsuki

    Takenaka, S.


    A bionic refuse disposing and annihilating apparatus for wet refuses produced on board a ship was developed, and introduced in this paper. This apparatus uses a system that biomass as a decomposing medium is maintained dry in a disposal tank, and wet refuses are decomposed and annihilated by the biomass working only with water contained in the wet refuses themselves. The system uses a decomposing medium composed of a mixture of different kinds of organic matters mixed with various nutrients, and automatically controls absorption and exhalation of decomposing water without using a heater. Almost all of wet refuses decomposes and annihilates in twelve hours after having been charged in their original forms. The decomposing medium can be used continuously for six months to a year. Because of complete annihilation by the bionic effect, no residue is created. This system uses a normal-temperature decomposing and annihilating bionic technology, whose minimum temperature required for decomposition and annihilation is 10{degree}C or higher, and the highest permissible temperature is 75{degree}C. Dry and cool environment at about 20{degree}C is most suitable. Deodorizing function of the biomass itself as the decomposing medium suppresses odor generation. 3 figs.

  16. Flame-Retarding of Cotton/Polyester Blended Yarn Fabrics Using Two-Component Sequential Treatment; Nidankai shori ni yoru men/poriesuteru konboshifu no nannenka

    Kubokawa, Hiroo. [Textile Research Institute of Gunma Prefecture, Gunma (Japan)


    Cotton/polyester (C/P) blended yarn fabrics were treated with several flame retardants used for poly (ethylene terephthalate)(PET) using pad-dry-cure method. The relationships between the chemical structures of the flame retardants and their partition into PET fibers were investigated. When tetrabromobisphenol A (TBP-A) was tested, the amount of sorption increased with increasing concentration of TBP-A in treating acetone solution, and reached 4.0%o.w.f. (% on the weight of the fibre) at 10 wt%. THis treated fabric was again treated with a flame retardant for cotton, Pyrovatex CP New, which contains dimethyl 2-(N-hydroxymethylcarbamovl)ethylphosphonate as a main component. However, sufficient flame retardancy was not obtained. The second partition of TBP-A to cotton during heating was thought to lower the sorption efficiency of Pyrovatex CP New. Based on this assumption, for the case of the two-component sequential treatment, the Pyrovatex CP New treatment, which generates covalent bonds with hydroxy groups of cellulose, should be carried out prior to the TBP-A treatment. When a C/P blended yarn fabric was treated with Pyrovatex CP New and then with TBP-A, the amount of sorption of Pyrovatex CP New was 9.6%o.w.f. and the amount of sorption of TBP-A was 4.6%o.w.f. The limiting oxygen index of the treated fabric was 27.2%, a sufficient value for flame retardancy. Fromthis result, it was concluded that the practica flame-retardant finishing of c/p blended yarn fabrics could be carried out by using a simple finishing machine. (author)

  17. Visual feedback navigation for cable tracking by autonomous underwater vehicles; Jiritsugata kaichu robot no gazo shori ni motozuku cable jido tsuiju

    Takai, M.; Ura, T. [The University of Tokyo, Tokyo (Japan). Institute of Industrial Science; Balasuriya, B.; Lam, W. [The University of Tokyo, Tokyo (Japan); Kuroda, Y. [Meiji Univ., Tokyo (Japan)


    A vision processing unit was introduced into autonomous underwater vehicles (AUV) to judge the visual situation and to construct an environmental observation platform that can collect wide-range and high-precision measurement data. The cable optionally installed at the bottom of the sea was recognized by vision processing to propose automatic tracking technique. An estimator that compensates for the hough conversion or time delay and a PSA controller that is used as a target value set mechanism or lower-level controller were introduced as the factor technology required for automatic tracking. The feature of the automatic tracking is that a general-purpose platform which can observe the prescribed range environmentally in high precision and density can be constructed because the observation range required by the observer can be prescribed near the sea-bottom surface using a cable. The verification result off Omi Hachiman at Lake Biwa showed that AUV can be used for the high-precision environmental survey in the range prescribed near the sea-bottom surface using a cable. 8 refs., 8 figs., 1 tab.

  18. Effect of partial solution treatment on martensitic transformation of 12%Cr steels; 12% Cr ko no martensite hentai ni oyobosu bubun yotaika shori no eikyo

    Tsuchiyama, T.; Takai, S. [Kyushu University, Fukuoka (Japan)


    When high chromium martensitic steels are subjected to partial solution treatment in (austenite+M23C6, carbide) two -phase region, not only the coarsening of austenite grains is effectively suppressed by insoluble-carbide particles, but also martensitic structure, which has formed during cooling, is refined through the treatment. In this study, the mechanism of refining of martensitic structure was discussed in Fe-12%Cr-C ternary alloys by investigating the relation between Ms temperature and solution treatment conditions, and the effect of insoluble-carbide particles on the substructures such as martensite-lath or -block. The Ms temperature of steels with full solution treatment simply depends on the content of C and Cr, but that of steels with partial solution treatment is dependent on the effective chemical composition of matrix, which is evaluated by taking the amount of C and Cr in insoluble-carbide away from their total content. Refining of martensite-block structure within grains is not caused directly by insoluble-carbide particles, but done indirectly through the refining of austenite grain size. While, on the martensite-lath structure, insoluble-carbide particles supply nucleation sites for laths, and work also as obstacles for growing laths. As a result, martensite-laths in steels with partial solution treatment are divided finely by insoluble carbide particles, and the arrangement of laths is tend to be confused. 14 refs., 10 figs., 1 tab.

  19. Study on automatic detection for magnetic particle indications using image processing; Gazo shori ni yoru jifun tansho no jidoka ni kansuru ichikokoromi

    Sekine, K.; Suzuki, S.; Iwai, O. [Yokohama National Univ. (Japan). Faculty of Engineering


    Magnetic particle indications have a good detection ability to fine surface flaws in high magnetic materials mainly for iron and steel materials, and widely used in the quality inspection of semi-finished steel products and the maintenance inspection of welds due to their simplicity. In this study, concerning the experiment of the magnetic particle indications as an objective of cracks in steel welds including seam cracks of steel billets, the extraction of the flaw indications and the evaluation of its length were attempted by the application of a common personal computer and simple image processing technique. Moreover, the basic investigation on the evaluation of crack depth was conducted, the possibility of the automatic detection of cracks in welds during the maintenance inspection was examined. In the image processing system to detect crack indications, a reflecting light was produced by irradiating an ultra-violet light in the detecting part using two sets of black lights and it was taken by image processing equipment with a lens and camera system, and thus image data were obtained. 9 refs., 11 figs.

  20. FY1995 study of low power LSI design automation software with parallel processing; 1995 nendo heiretsu shori wo katsuyoshita shodenryoku LSI muke sekkei jidoka software no kenkyu kaihatsu



    The needs for low power LSIs have rapidly increased recently. For the low power LSI development, not only new circuit technologies but also new design automation tools supporting the new technologies are indispensable. The purpose of this project is to develop a new design automation software, which is able to design new digital LSIs with much lower power than that of conventional CMOS LSIs. A new design automation software for very low power LSIs has been developed targeting the pass-transistor logic SPL, a dedicated low power circuit technology. The software includes a logic synthesis function for pass-transistor-based macrocells and a macrocell placement function. Several new algorithms have been developed for the software, e.g. BDD construction. Some of them are designed and implemented for parallel processing in order to reduce the processing time. The logic synthesis function was tested on a set of benchmarks and finally applied to a low power CPU design. The designed 8-bit CPU was fully compatible with Zilog Z-80. The power dissipation of the CPU was compared with that of commercial CMOS Z-80. At most 82% of power of CMOS was reduced by the new CPU. On the other hand, parallel processing speed up was measured on the macrocell placement function. 34 folds speed up was realized. (NEDO)

  1. Effect of the surface treatment on microbially influenced corrosion resistance of stainless steels; Taibiseibutsu fushokusei ni oyobosu stainless ko no hyomen shori no eikyo

    Amaya, H.; Miyuki, H. [Sumitomo Metal Industries, Ltd., Osaka (Japan)


    This paper describes the corrosion potential ennoblement behavior of stainless steel with various surface treatments and the effects of surface treatment on the microbially influenced corrosion (MIC) by means of simulated MIC reproduction test method in the laboratory. SUS316L steels were polished, passivated, electropolished, and electrolyzed in Fe(III)Cr(VI) containing solution and in sulfuric acid. For the specimens polished, passivated, electropolished and electrolyzed in sulfuric acid, the corrosion potential was ennobled in the MIC test solution, and crevice corrosion was generated in the seawater. For the specimen electrolyzed in Fe(III)Cr(VI) containing solution, the corrosion potential was ennobled only in a degree of standard electrode, and crevice corrosion was not observed. The film on the steel surface had a double layer structure composing of the Fe hydride outer layer and the Cr oxide inner layer. The cathodic polarization reaction of the bipolar membrane, which consisted of outer anion selective layer and inner cation selective layer, was suppressed. The corrosion potential ennoblement due to the promotion of cathodic polarization reaction by bacteria was suppressed. Thus, excellent anti-MIC property was demonstrated. 17 refs., 11 figs., 5 tabs.

  2. Treatment efficiencies of nitrite nitrogen in industrial wastewater by using amido sulfonic acid; Amido ryusan ni yoru kojo haisuichu no ashosansei chisso no shori koka

    Inoue, M. [Kanagawa Environmental Research Center, Kanagawa (Japan); Inamori, Y. [National Inst. for Environmental Studies, Tsukuba (Japan)


    Chemical denitrification of NO2-N conducted with amido sulfonic acid was studied to treat NO2-N in both bench and in situ experiments. In bench experiments, following optium conditions for NO2-N removal were obtained. The dosage of amide sulfate was 6.9 times equivalent to NO2-N load, pH value and stirring rate were 2.5 and 50 r.p.m., respectively in the bench reactor, and the period for reaction was more than 60 minutes. Nitrogenous gases like NOx, and N2O, which are causative materials for air pollution and global warming, were not detected in the gas exhaust. In situ experiment was made with wastewater containing NO2-N discharged from a factory and with its operating parameters same as the optimum conditions obtained in the bench experiment. It ran in batch style and was controlled automatically. Results showed that efficient chemical denitrification could be conducted through continuously stirring during treated wastewater discharging, and through covering nitrite sensor to keep it from the nitrogenous gases generated in the reaction. 17 refs., 9 figs., 1 tab.

  3. Effects of mechanical stimulating treatment on self-organization phenomena of materials; Kikaiteki reiki shori. Zairyo no jiko soshikia gensho ni oyobosu sono koka

    Hida, M. [Okayama University, Okayama (Japan). Faculty of Mechanical Engineering


    The atoms and atom clusters around dislocation cores in crystals or surface layer deformed by mechanical energy are locally excited so as to give rise some chemical reactions and to self-organize their products into a kind of Spatial-Temporal Pattern Formation as a dissipative structure. A famous coupling phenomenon between mechanical and chemical process in solid materials must have been mechanical alloing. This report explains that various mechano-chemical treatments are powerfull method for entraining the solid system into non-equilibrium states and interesting phenomena stimulated by the mechanical self-catalysis reaction causing self-organization. (author)

  4. Cement manufacture and sludge; Semento seizo to gesui odei. Semento kojo deno antei shori {center{underscore}dot} yuko riyo gijutsu

    Hirota, Yoji; Yamazaki, Masayasu; Hashimoto, Koichi [Mitsubishi Materials Corp., Tokyo (Japan)


    There was the percussion of the sludge processing from the Kitakyushu City in 1995. Within various waste treatment technology cultivated to it, the technology (direct combustion system) of cement raw material by the direct injection of sludge dehydrated cake to cement baking furnace was adopted. It became dealing with in cement baking furnace of the Kurosaki factory in our company. Through the processing by the present, it is not completely finding even in cement quality of the product, environmental side and on the problem. It was confirmed to be the processing technology of sewage dewatered sludge in which this technology was safely stabilized. In addition, the superiority in much global environmental protection has also been confirmed. (NEDO)

  5. Transformation hardening by linear-polarized laser beam. Report 2. Development of novel laser beam shaping optics and its applications to materials processing; Chokusen henko reza wo mochiiru hentai koka. 2. Atarashii reza shaping kogakukei no kaihatsu to sono oyo

    Miyamoto, I.; Maruo, H. [Osaka Univ., Osaka (Japan)


    Shape variable laser beam shaping optics for which linear polarized beam is utilized is applied to the hardening of carbon steel by CO2 laser beam to analyze the absorptivity. In addition, linear polarized beam is irradiated to inclined materials for laser hardening to analyze the depth of hardening and the distribution of temperature. The absorptivity of random polarized beam by the bare specimens is as low as 20%. It is as high as above 40% with the graphite coated specimen, but is nearly constant with no dependence on the angle of incidence. The absorptivity in p-polarization increases with the increase in the angle of incidence. When linear polarized beam is used, the total efficiency of the bare specimen becomes high by about 1.5 times that of the graphite coated specimen subjected to random polarized beam. Hardening of bear material by laser beam is quite possible when p-polarization is employed. An approximation equation is derived with which the temperature distribution and hardened depth can be obtained easily if beam distribution and absorptivity are given, and it is applied to the evaluation of laser hardening of inclined specimens using linear polarized beam. 22 refs., 11 figs., 1 tab.

  6. Application of new analytical techniques to the order-disorder transformation in Ni-Mo alloys; Ni-Mo gokin no kisoku-fukisoku hentai ni okeru atarashii kozo kaiseki no kokoromi

    Oki, K.; Hata, S.; Kuwano, N. [Kyushu University, Fukuoka (Japan)


    This paper presents the analytical example of the ordering process of order-disorder transformation in Ni-Mo alloy using recent experimental techniques. Monte Carlo simulation clarified the fact that the ordering process in Ni4-Mo alloy is largely affected by short range interaction in the early stage of ordering, and forms D1a, D022 and Pt2Mo structure units with a similar atomic pair correlation. The ordering process is largely affected by long range interaction with an advance of ordering, and develops only D1a structure most stable in energy. In order to check the existence of SRO (short range order) structure obtained by Monte Carlo simulation, the analysis of high-resolution TEM images under SRO condition was carried out using the imaging plate recently developed for TEM. The analytical result showed that the observed N2M3 pattern is derived from not always the existence of N2M3 structure but superimposition of D1a, D022 and Pt2Mo structure units. 19 refs., 4 figs.

  7. Survey report of FY 1997 on the trends of novel CO2 fixation technology using bacteria and microalgae; 1997 nendo chosa hokokusho (saikin sorui wo riyoshita atarashii nisanka tanso kotei gijutsu no doko chosa)



    For this survey, the latest technology trends relating to microbial functions are summarized to recover and effectively utilize CO2, typical greenhouse effect gas, using microbial functions. Systematic survey and analysis are conducted concerning the microorganisms useful for fixing CO2, CO2 uptake mechanism during the microbial reactions, utilization methods of solar light and useful energy sources except solar light, highly efficient production of useful materials, and usage of produced useful materials. Research has concentrated on use of biological activities for this purpose through design of bioreactors using microorganisms (bacteria and microalgae) for efficient CO2 fixation. For the process to have net CO2 fixation as assessed by its life cycle and to make the process economically feasible, it is essential not only to fix CO2 merely in the form of biomass but in addition to convert it to useful materials by the catalytic activities of the organisms. Three categories were set for the survey, i.e., microorganisms with CO2 fixation ability, available energy for CO2 fixation, and target CO2 fixation products. 169 refs., 49 figs., 14 tabs.

  8. Survey report for fiscal 1998. Survey of trends of new CO{sub 2} fixation technology using bacteria and algae (II); 1998 nendo chosa hokokusho. Saikin sorui wo riyoshita atarashii nisanka tanso kotei gijutsu no doko chosa



    The trend of technology is surveyed from a standpoint that, in the process of CO2 fixation using microbes for the production of useful substances, it is essential, in view of income/outgo balance and economy, to utilize their catalytic function. The survey centers about the feasibility of the utilization of organic wastes, cellulose wastes in particular, as an energy source. Special attention is paid to the energy of artificial light and laser beams. From a point of view that it is important to suppress cell multiplication and to effectively utilize only catalytic activity for the production of useful substances, the cell division mechanism of the Corynebacterium is analyzed, and the findings are compiled to facilitate the study as to whether the division may be controlled. A report is also prepared on the metabolic mechanism of a photosynthesizing bacterium that is judged to be the most promising species. Reference is made to aerobic and anaerobic bacteria. Shown are the organic compounds that are formed by CO2 gas fixation thanks to microbial or enzymatic reactions. To emphasize their importance as an energy source and to explain the conversion of biomass into useful substances, the technology and economy of conversion into fuel compounds are surveyed. The production of ethanol out of organic wastes is evaluated in the way of LCA (life cycle assessment). (NEDO)

  9. Tallinna ajalugu Rootsi aja teisel poolel / Otto Liiv ; koost. Tatjana Shor

    Liiv, Otto, 1905-1942


    Tallinna halduslikust korraldusest. Sisepoliitiline areng ja välispilt, majanduslik olukord Karl X ja Karl XII valitsemise ajal, usu-, haridus- ja kombeelu, eestlus Tallinnas hilisel Rootsi ajal ning Tallinna vallutamine Põhjasõja ajal venelaste poolt. Lisaks ka Otto Liivi bibliograafia lk. 63-78, koost. Shori, Tatjana

  10. Zero-phonon-line pumped 1 kHz Yb:YAG thin-disk regenerative amplifier

    Chyla, Michal; Miura, Taisuke; Smrž, Martin; Severová, Patricie; Novák, Ondřej; Endo, Akira; Mocek, Tomáš

    Bellingham: SPIE, 2013 - (Clarkson, W.; Shori, R.), 85991Q. (Proceedings of SPIE. 8599). ISBN 978-0-8194-9368-2. ISSN 0277-786X. [Solid State Lasers XXII: Technology and Devices. San Francisco (US), 03.02.2013-05.02.2013] Institutional support: RVO:68378271 Keywords : Yb: YAG * thin-disk * regenerative amplifier * high energy * picosecond Subject RIV: BH - Optics, Masers, Lasers

  11. Improvement of a manageability of biological nitrogen and phosphorus removal plant using a wastewater treatment process simulator; Gesui shori purosesu shimyureta no riyo ni yoru seibutsuteki chisso/rin jokyo puranto no kanrisei no kojo

    Kurata, G. [Toyohashi Univ. of Technology, Aichi (Japan). Faculty of Engineering; Tsumura, K. [Kyoto Univ., Kyoto (Japan). Graduate School; Yamamoto, Y. [Osaka Prefectural Inst. of Public Health, Osaka (Japan)


    In this paper, a method for executing a stable management of wastewater treatment process is examined by using a wastewater treatment process simulator with the facilities adopting intermittently aerated 2-tank activated sludge process as the object. The following results are obtained from said examination. Based on a fact that the treatment efficiency is influenced greatly by the comparatively miner parts of the process in biological nitrogen and phosphorus removal, a wastewater treatment process simulator, by which the intrinsic process flow, restricting conditions and behaviors of controlling system of each facility can be dealt with, is developed by using object-directional model. As the results of this development, not only the effects approximate to those of actual process can be obtained, but also the trial error and alternation of process flow can be realized in a short time. The serious influence of disappearance of dissolvable organic substance in flow-adjusting tank upon the deterioration of biological phosphorus removal is clarified by the results of the simulation based on the investigation of flowing-in water quality. 12 refs., 13 figs., 4 tabs.

  12. Thermal relaxation of bituminous coal to improve donation ability of hydrogen radicals in flash pyrolysis; Sekitan kozo kanwa ni yoru suiso radical kyoyo noryoku no kojo wo mezashita netsubunkai mae shori

    Mori, T.; Isoda, T.; Kusakabe, K.; Morooka, S. [Kyushu University, Fukuoka (Japan). Faculty of Engineering; Hayashi, J. [Hokkaido University, Sapporo (Japan). Center for Advanced Research of Energy Technology


    In terms of coal conversion reaction, the behavior of bituminous coal heated beyond a glass transition point was examined on the basis of pyrolyzed products, and the effect of an increase in proton mobility on promotion of coal decomposition was evaluated. In experiment, after Illinois bituminous coal specimen was heated up to a specific temperature in N2 or He gas flow at a rate of 5K/min, the specimen was directly transferred to a pyrolyzer for instantaneous pyrolysis. As the experimental result, the glass transition temperature of the Illinois coal specimen was calculated to be 589K from a differential scanning calorimetry (DSC) profile. From the pyrolysis result of the Illinois coal specimen heated up to 623K, the char yield decreased by 3kg as compared with that of the original coal, while the tar yield increased by 4kg up to 27kg per 100kg of the original coal. This tar increase was larger than that of cooled coal. These results suggested that the donation of hydrogen radicals to coal fragments is improved with an increase in proton mobility. 4 refs., 4 figs., 1 tab.

  13. Report on the project for spread/promotion of technology for the industrial waste optimized treatment in the Asian region; Asia chiiki sangyo haikibutsu tekiseika shori gijutsu nado fukyu sokushin jigyo hokokusho



    The International Symposium `98 on the industrial waste problem in the Asian region was held in Tokyo on February 18, 1998. MITI commented on the present situation of the industrial waste problem in Japan and Japan`s environmental tackling toward the Asian region, and also Asian countries (China, the Philippines, Thailand and Korea) made reports. Japan reported on environmental preservation measures taken in the industrial circle, the industrial waste problem at companies which advanced into Asian countries, effects of the Basel Convention (which restricts border-crossing movement of harmful wastes) on recycle activities, Japan`s role in Asia, etc. In the panel discussion, discussions were made on human interchange in the informatization, recycling technology, shortage of personnel concerned with environmental protection, construction of a network in the Asian region and Japan` s role, etc. As to the treatment system for waste, the necessity was recognized of studying systems which meet with actual states of each country. It is also necessary to go on with discussing how the system should be for cooperation between governments and private companies. Importance of the recycle and information exchange was emphasized. 10 refs., 14 figs., 27 tabs.

  14. Adaptability of drowsiness level detection that measures blinks utilizing image processing to changes in the ambient light; Hikari kankyo no henka ni tekiosuru kao gazo shori ni yoru inemuri unten kenchi

    Kaneda, M.; Obara, H.; Nasu, T. [Nissan Motor Co. Ltd, Tokyo (Japan)


    A drowsiness warning system that measures blinks utilizing image processing technology has a number of issues that need to be resolved. One issue is the adaptability of the system to changes in the ambient light environment in the actual vehicle interior. We have devised image processing software which is robust to changes in the ambient light. The drowsiness detection performance of the system was evaluated in laboratory tests and actual driving tests. It was found that the system can has a positive effect on detecting drowsiness level. 3 refs., 10 figs.

  15. Evaluation of ground properties in deep soil improvement method and its application to automization of construction; Shinso kongo shori koho ni okeru jiban hyoka to sono jidoka seko eno oyo

    Tateyama, K. [Kyoto University, Kyoto (Japan). Faculty of Engineering; Fukagawa, R. [Ehime University, Ehime (Japan). Faculty of Engineering; Tsuji, T. [Kobe Steel, Ltd., Kobe (Japan)


    The evaluation method of ground properties based on mechanical load during construction was studied for powder jet mixing method in deep soil improvement. In the theoretical study, mixing torque and N value in standard penetration test were used as machine load and ground property, respectively, and the relational expression between internal friction angle of ground and cohesion was derived. To verify the validity of calculation results, the mixing torque, penetration rate and N value were measured and compared at 18 spots of 6 construction fields. Boring survey was carried out at the measuring spots to obtain the N value distribution to depth prior to the experiment. As a result, in both sand and clay ground, the relation among the mixing torque, penetration rate and N value could be expressed by the same type of the relational expression although expression`s coefficients were different from each other. In sand ground, the measured values relatively well agreed with the calculated values at 2-3 in increase magnification of the pressure derived from volume expansion of soil due to mixing. 9 refs., 15 figs.

  16. Electro- and hot-dip galvanized steel sheets having Cr-free treatment layer on the surface and Cr-free prepainted electrogalvanized steel sheets; Kuromu furi hyomen shori aen mekki gohan oyobi kuromu furi purekoto denki aen mekki gohan

    Kanai, H.; Yamasaki, M.; Mori, Y.; Ueda, K.; Morishita, A.; Furukawa, H.; Nakazawa, M.; Ishizuka, K.; Wake, R.


    Various types of coated steel sheets, which are among the major products of Nippon Steel's sheet and coil products, have a chromate layer on those surfaces to ensure good white rust resistance and finish-coat adhesion. However, six valent chromium contained in the chromate layer is one of the environmentally un-friendly materials. In reply to our users' requirement of eliminating such materials, we have recently developed a Cr-free electrogalvanized steel sheet 'ZINKOAT-21', a Cr-free hot-dip galvanized steel sheet 'SILVERZINC-21', and a Cr-free prepainted electrogalvanized steel sheet 'VIEWKOAT-21'. The performance of those new products have been found to be enough for actual uses in comparison with the conventional coated steel sheets which contain chromium. (author)

  17. Fiscal 1999 geothermal development promotion survey report. Data processing (No. B-5 - Musadake region - Phase 3); 1999 nendo chinetsu kaihatsu sokushin chosa data shori hokokusho. No. B-5 Musadake chiiki (Dai 3 ji)



    A comprehensive analysis was conducted into the results of a survey on the state of existence of geothermal energy resources in the Musadake region, Shibetsu-gun, Hokkaido. The region was volcanically active in the period from the Neogene period into the quaternary, with some volcanos still active even today. The geological structure on the whole is characterized by the Musadake/Mt. Shitabanupuri fault which is the major structure running NNE-SSW and having a folding structure. It is inferred that Musadake is the heat source responsible for the underground temperature distribution in this region. The maximum temperature of 274 degrees C is recorded at borehole N11-MD-3 in the northeastern part of Musadake, and the temperature falls rapidly as the distance from the borehole increases. Ejection of geothermal fluids is observed at boreholes N11-MD-3 and N11-MD-4. It is inferred that the deep-seated geothermal water is of the neutral Cl type with Cl concentration estimated at approximately 12,000 mg/liter. Steam composition is characterized by a gas concentration level that is as high as 3-4 vol.%. The gas is composedly mainly of CO2 and contains some hydrocarbons. Fluids in this region are classified into water mixing into deep-seated geothermal water and groundwater originating in meteoric water. (NEDO)

  18. Development and field example of multi channel surface wave data acquisition and processing system (SWS-1); Multi channel hyomenha data shutoku shori system (SWS-1) no kaihatsu to jikkenrei

    Liu, Y. [Huashui Institute of Geophysical Exploration, (China); Wang, Z. [Bureauof Engineering MGMR, (China); Zhang, Z [STG Corp., (China); Tanaka, Y.


    A report is given here about the use of a newly-developed multi-channel surface wave data acquisition and processing system different from the conventional surface wave exploration device. This system enables the on-site pickup of a dispersion curve out of the multi-component surface wave data and, in the analysis of underground structure, performs the forward modeling and inversion. The system, furthermore, acquires and analyzes the data obtained from reflection earthquake exploration and constant microtremor observation. During a survey conducted along the highway from Port Ren-un to Xuzhou, China, estimation of the basement boundary was made by use of dynamite, and what was obtained agreed with the result of boring though with an error of 3m. In addition, this system could probe levels deeper than 100m using the instantaneous Rayleigh wave exploration method. This system and the conventional surface exploration device were compared in a soft ground in Fukui Prefecture, the former using a 10kg hammer and the latter using a 350kg exciter, when it was verified that the results produced by both techniques excellently agree with the geologic columnar section and changes in the N-value. 4 refs., 4 figs.

  19. Processing of the reflection seismic data which were acquired in the continental shelf off the north-west Australia; Australia hokusei tairikudana chiiki ni oite shutokusareta hanshaho chishitsu tansa data no shori ni tsuite

    Amano, H. [Japan National Oil Corp., Tokyo (Japan)


    Reflection exploration of earthquakes was conducted in the continental shelf off the north-west Australia, and a report is made concerning the processing of the acquired data. A GI gun was used as the vibration source, and a wave quite similar to a pulse was generated. Hydrophones were arranged with group intervals of 12.5m, and high-resolution field data were acquired. An analog low cut filter was used to suppress the large-amplitude swell noise attributable to sea conditions. A digital filter was designed for the purpose of eliminating coherent noises from other survey ships. At the ultimate stage the f-k filter was applied to each of the shot records, and the effectiveness was verified. The traverse line was as long as 6700km and therefore the design window was set relatively long at 2.0-4.0s in the residual static correction phase. It was found that this setup is effective in improving the continuity of the reflection surface. 5 figs., 1 tab.

  20. 3D seismic survey in Honjo, Akita. Problems and struggles in acquisition and processing; Akitaken Honjo koku ni okeru sanjigen jishin tansa. Genba sagyo to data shori ni okeru mondaiten

    Imahori, S.; Kotera, Y.; Nakanishi, T. [Japan Energy Development Co. Ltd., Tokyo (Japan)


    Honjo mining area where investigations are conducted is hilly and has a complicated terrain with gas pipes buried in the ground just under the access road disabling the proper positioning of shock-generating large excavators or vibrators. Auger`s shallow hole shooting method is used in this survey to execute blastings at 639 points. In this method using charge depths of 4m, different from the conventional method using deeper charge depths (20-25m), surface waves prevail in the shot records giving rise to a new problem of removing them in the stage of data processing. The 2D filter that is a powerful tool in 2D data processing is not available in a 3D-survey where the tracing intervals are irregular in the shot records. In the effort of this time, a window length as a parameter in the direction of time is specified, and the F-X dip filtering method is employed in which any event that linearly continues beyond a certain number of traces in the said window is eliminated as a linear noise. It is recommended that the weighting function be changed in the direction of space since surface wave velocities are different at different locations. 1 fig., 1 tab.

  1. Research cooperation project in fiscal 1998. Summarized report on research cooperation for mine waste water treatment technology utilizing biomass; 1998 nendo kenkyu kyoryoku jigyo. Bio riyo ni yoru kohaisui shori gijutsu ni kansuru kenkyu kyoryoku



    A cooperative research project has been executed with the People's Republic of China on removing heavy metals from waste water in mines in China. For the site surveys, consultations with the concerned Chinese parties were repeated for the subjects of the project to carry out the project smoothly. The following subjects were put into implementation at Wushan Mine: technical guidance to local researchers, investigation on properties of the mine waste water, collection of information for building a pilot plant, the pilot plant installation, and guidance of the plant operation. Then, the conception design was performed on the mine waste water treatment facilities at Wushan Mine based on the data derived from the research operation of the pilot plant. Furthermore, in order to help the Chinese researchers, a handbook was prepared for investigation, test and facility design on waste water treatment facilities utilizing iron oxidizing bacteria. In addition, Chinese researchers were invited to Japan to perform site training. (NEDO)

  2. Fiscal 1998 research report. Popularization project of the proper treatment technology of industrial wastes in Asian regions; 1998 nendo chosa hokokusho. Asia chiiki sangyo haikibutsu tekiseika shori gijutsu nado fukyu sokushin jigyo



    Study was made on popularization of the proper treatment technology of industrial wastes in Asian regions. In principle, industrial wastes should be recycled in a country concerned, however, because of a difference in technology and industrial location, treatment of all industrial wastes in a country concerned is impossible. International cooperation is thus indispensable to promote proper efficient practical measures for environment. For studying the possibility of the international cooperation between Japan and Asian countries concerned for further recognition and solution of industrial waste problems, 'International Symposium on the Asian Industrial Waste Issue' have been held in Tokyo since 1997 for governmental staffs. In fiscal 1998, Malaysia was invited in addition to China, Philippines and Thailand for popularization of the proper treatment and recycling of industrial wastes in Asian regions. In every Asian countries, poor collection of discharge, treatment and disposal data is an obstacle to effective treatment. Technical cooperation and financial support by developed countries are demanded. (NEDO)

  3. FY 1998 annual report on the study on development of corrosion-resistant ceramic materials for garbage incinerators; 1998 nendo gomi shori shisetsuyo taishoku ceramics zairyo no kaihatsu ni kansuru kenkyu chosa hokokusho



    Described herein are the FY 1988 results of development of corrosion-resistant ceramic materials for garbage incinerators. Residue released when porcelain stocks are collected is selected as the inexpensive stock for SiO{sub 2}-Al{sub 2}O{sub 3}-based refractory materials. It is incorporated with carbon black and reduced at 1,200 to 1,500 degrees C in a nitrogen atmosphere. Synthesis of the target Si-Al-C-N-O-based compound succeeds in the presence of a solid catalyst, but it is a fine powder, and hence that of the massive compound fails. The commercial ceramic materials and new refractory materials, made on a trial basis, are evaluated for their resistance to corrosion using fry ashes collected from a commercial incinerator. These ashes are higher in melting point, more viscous, holding a larger quantity of attached slag and more corrosive than synthetic ashes. These materials are corroded acceleratedly as temperature increases to 1,200 degrees C or higher, more noted with the ceramic materials than with the refractory materials. Oxidation and melting characteristics of the molten slag affect corrosion of some materials. Use of the graphite-based material shall be limited to a section below the slag surface, where graphite is oxidized to a smaller extent. The MgO-based material is promising. The Al{sub 2}O{sub 3}-Cr{sub 2}O{sub 3}-based material is more promising than any other material developed in this study. Their bending strength before and after the corrosion test is measured at normal temperature to 1,700 degrees C, to investigate their deterioration by high temperature and corrosion. (NEDO)

  4. Report on fiscal 1992 geothermal development promotion survey data. No.A-1 Mannenyama area (first); 1992 nendo chinetsu kaihatsu sokushin chosa data shori hokokusho. No.A-1 Mannenyama chiiki (daiichiji)



    A synthetic analysis was made of the results of the fiscal 1992 survey on geothermal resource existing in the Mannenyama area. The area surveyed is located at the central-west part of Oita prefecture, belonging to an administrative division of Kusu-machi and Kokonoe-cho, Kusu-county, Oita pref. The area surveyed was approximately 280 km{sup 2}. As signs of existence of geothermal energy, there are seen hot springs and alteration zones there. In the Takigami district neighboring the south-east part of the area, construction of a geothermal power plant is being planned. From a synthetic consideration of various investigations, the region round the Inomuta sedimentation zone is considered to be a district satisfying conditions for existence of geothermal resource and a promising geothermal district, where Takigami, Otake, Hachoubaru and Okuni are widely included. In the area surveyed this time, the area around Noya-Mizuwaketouge seems to be the most potential for geothermal resource, judging from the alteration status, abnormal mercury concentration, fault state structure and spread of the low resistivity zone. Also in the south and the north-east of the area, geothermal activities can be estimated. 99 refs., 194 figs., 52 tabs.

  5. Fiscal 1993 investigational study of a model of international cooperation for an environmentally harmony type green technosystem; 1993 nendo Oshu ni okeru haikibutsu shori oyobi recycle no doko ni kansuru chosa kenkyu hokokusho



    For the natural environment preservation, effective utilization of resources, and maintenance of the ecosystem, an international cooperation model was proposed for the environmental harmony type green technosystem. A comprehensive evaluating analysis of a green forest resource, etc. as the global resource, and an intensive extraction of subjects and needs was made. The analysis was conducted of technical possibility and abstract business development effects toward the industrialization with high values added which is in harmony with the environment. As a case study, the Papua New Guinea area, Malaysia was selected and re-evaluated. For this typical tropical forest area, a new technical system was studied based on the natural environment, industry/economy, social/cultural assessment, etc., and a model for industrializing new international cooperation was proposed. For the model making for industrialization, various steps to be taken and conditions to be prepared were studied and arranged for the realization. Upon going ahead with the international technical cooperation, Japan, a large lumber consuming country, needs to always consider the fostering and effective use of lumber resource in particular. 27 refs., 28 figs., 30 tabs.

  6. Report on the project for spread/promotion of technology for the industrial waste optimized treatment in the Asian region (International Symposium `98); Asia chiiki sangyo haikibutsu tekiseika shori gijutsu nado fukyu sokushin jigyo (symposium kaisai) hokokusho



    In Japan and Asian countries, the optimized treatment of industrial waste is the problem with the economic growth. Border-crossing movement of the waste for promotion of the renewable use is also a problem. Therefore, the International Symposium `98 on the industrial waste problem in the Asian region was held. China, Thailand, the Philippines and Korea were invited to Japan to give lectures. MITI of Japan reported on the present situation of Japan and the cooperation with Asian countries. The industrial circle reported on efforts for environmental protection measures to be taken, the industrial waste problem at companies which advanced into Asian countries, effects of the Basel Convention on recycling activities, Japan`s role in Asia, etc. In the panel discussion, promotion of cooperation for recycling technology and Japan`s support for formulating strategy on the industrial waste were requested to Japan, and the construction of an Asian area network was proposed. Concerning the cooperative system between governments and private companies, it was concluded that it was necessary to discuss it considering the actual state of each country. Importance of recycle and information exchange was realized again. 10 refs., 15 figs., 27 tabs.

  7. Study of reaction and heat release from solid combustion in strong magnetic field; Kyojiba wo riyoshita hikinshitsu kotai nensho shori no hanno to netsu no seigy ni kansuru kiso kenkyu

    Ito, K.; Fujita, O.; Iiya, M.; Kudo, K. [Hokkaido University, Sapporo (Japan)


    To establish the inhomogeneous solid combustion control technology, effects of the strong magnetic field on the solid combustion were examined. When applying the sufficiently strong magnetic field, it is possible to control the air flow in combustion field by utilizing the force applying to constituent oxygen with large susceptibility. Based on this possibility, combustion experiments of expanded polystyrene plates were conducted between the magnetic poles of electro-magnet having the maximum flux density of 1 T and the maximum magnetic field gradient of 0.5 T/cm. To observe the effects of magnetic field without the effects of natural convection, combustion experiments of acrylic sheets were conducted between the magnetic poles of electro-magnet having the maximum flux density of 0.6 T and the magnetic field gradient of about 0.1 T/cm under the microgravity conditions between 10{sup -4} and 10{sup -5}g using a microgravity test facility. Consequently, prospective combustion results could be obtained, in which the force of flame received from the magnetic field is almost equivalent to the buoyancy of flame. It was demonstrated that combustion can be controlled by the magnetic field. 1 ref., 3 figs., 1 tab.

  8. Investigation of the creation of functional surfaces and the recent development in related researches. 2. Investigation of the development of new isolation/refining systems in water system; Kokino hyomen no sosei to shintenkai no kenkyu doko chosa. 2. Suikei ni okeru atarashii bunri seisei system no kaihatsu ni kansuru chosa



    Propositions were made concerning new chromatography and membrane separation techniques wherein a command control material is used, the mobile phase is fixed upon water, and the fixed phase is caused to vary by external commands, and how to develop the said techniques into a project was discussed. New methods were also introduced, capable of separating water systems and, particularly, capable of separating and refining, without damaging their functions, bionic elements such as proteins, genes, and cells, which encouraged discussion on the future of the said project. As for command controlled materials, detailed investigations were conducted into materials responsive to physical stimulation such as light, electric field, magnetic field, or heat and materials responsive to PH and chemical or biochemical substances, and discussion was made on the structures and characters of the said materials. Concerning the manufacture of a command controlled surface, consideration centered particularly about the density and thickness of command controlled molecules to be introduced onto the surface. Furthermore, the current state and problems were discussed regarding chromatographic separation and refining of optical isomers, nucleic acids, physiologically active substances, peptides, cells, etc. 252 refs., 75 figs., 31 tabs.

  9. Fiscal 1997 report on the results on the international standardization R and D. Development of chemical methods to analyze/evaluate metallic coatings of surface treated steel coating sheets; 1997 nendo seika hokokusho kokusai hyojun soseigata kenkyu kaihatsu. Hyomen shori koban mekkiso no kagaku bunseki hyoka hoho no kaihatsu



    The paper studied the international standardization of the chemical analysis method and glow discharge optical emission spectrometry. Chemical composition and coating thickness (g/m{sup 2}) of 14 kinds of specimens including alloy coatings and organic coating with zinc and aluminum as base were analyzed by the above-mentioned methods to examine the relation between the both. As the chemical analysis method, used was inductively coupled plasma atomic emission spectrometry. To study the relation between the methods, it was found to be necessary to recognize morphology at the boundary between the coating and base steel using, for example, scanning electron microscope (SEM) and electro-probe micro-analysis (EPMA). To measure traceability of the analysis method, with the chemical analysis method as a judgement method, it is necessary to make reference materials by coating materials, to use the calibration graph confirmed by the materials and to adopt the glow discharge optical emission spectrometry. On the basis of such way of thinking, drafts were worked out for the international standardization of the chemical analysis method and glow discharge optical emission spectrometry. 7 refs., 117 figs., 33 tabs.

  10. Effect of reversion treatment on strength and ductility of low C, Cr-Ni martensitic stainless steel with high resistance to weld softening. Yosetsu nanka teiko no takai teitanso Cr-Ni maruten saito kei stainless ko no kyodo, ensei ni oyobosu gyaku hentai shori no eikyo

    Igawa, T.; Takemoto, T.; Uematsu, Y. (Nisshin Steel Co. Ltd., Tokyo (Japan). Steel R and D Lab.); Hoshino, K. (Nisshin Steel Co. Ltd., Tokyo (Japan))


    Like the stainless steel and the stainless steel belt used in the rolling stock, materials treated by process and weld has a high strength and a good ductility, moreover, was expected that weld softening would not occurred. In this study, formation of the ultra-fine crystal grains based on the M to [gamma] reversion transformation of low C, Cr-Ni martensitic stainless steel and effect of Si on change of mechanical properties were investigated. A high-strength stainless steel with a good ductility and without weld softening was developed. Main results obtained are as follows: After a steel was cold-rolled, the reversion treatment at the region between As and Af temperatures (600 to 640[degree]C) was carried out, a duplex structure with diameter of the ultra-fine grains of about 0.5 micron meter that is composed of [gamma] phase concentrated Ni and sintered M phase was formatted, and excellent mechanical properties with a high strength and a good ductility could be obtained, diameter of reversion [gamma] grains was dependent on reversion temperature. Diameter of [gamma] grains became large, and more homogeneous and uniform at higher reversion temperature. 20 refs., 11 figs., 2 tabs.

  11. FY 1998 annual report on the development of plasma-aided surface treatment processes by in-situ controlling (second year); 1997 nendo in-situ seigyo ni yoru plasma riyo hyohi shori process no kaihatsu seika hokokusho (dai 2 nendo)



    This R and D project is aimed at stable production of high-quality, important machine members, which are difficult to sufficiently achieve the required properties by a single material, by carburization while minimizing use of expensive alloy metals, where high-temperature carburizing time is reduced by a plasma-aided system to save energy, and, at the same time, the conventional oil-hardening system is replaced by a He gas cooling/recycling system to solve the environmental problems involved in the former. The exhaust gases released from the plasma-aided system are adequately treated to prevent the problems caused thereby. The conditions of the plasma itself and treated surfaces are sensed in-situ, and the data are fed back to the process controlling system, to keep the treated object stable and high in quality, while minimizing energy consumption. The FY 1998 efforts were directed to studies on methods for sensing the plasma and treated surfaces, and specifications of a mini-plant for the demonstration tests, and to collection of characteristic data for development of some new products to be produced. (NEDO)

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



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

  13. Project to support promotion of forming an environmentally friendly energy community. Survey report on 'a survey on introduction of industrial wastes composite treatment and power generation system intended for the whole Kagoshima prefectural area'; Kankyo chowagata energy community keisei sokushin hojo jigyo. Kagoshimaken zenken'ikika wo taisho to shita haikibutsu fukugo shori hatsuden system no donyu chosa hokokusho



    In order to reduce environmental load, such as suppression of dioxin generation in Kagoshima Prefecture having a large number of small cities, towns and villages, discussions were given on business feasibility of introducing a high-efficiency industrial wastes power generation system intended for the whole Kagoshima prefectural area. The discussions performed investigations on quantity of wastes generation by districts and kinds and the present treatment conditions, system designs, and optimization of business operation systems. Loads given to the environment in association with the system installation were also investigated (SOx, NOx and CO2 emission, and water quality contamination). The system incinerates and treats RDF, waste plastics and combustible wastes in a gasification melting furnace, and amount of dioxin in the waste gas and ash is reduced to below the regulation values. Quantity of heat obtained from the combustion is turned into high-temperature and high-pressure steam, which is utilized for power generation. As a result of the discussions on business profitability, the industrial wastes power generation system intended for the whole prefectural area was found sufficiently realizable if installed by the public organization and operated by private business organization. However, such mechanism as PFI is thought difficult in the range anticipated at the present time. (NEDO)

  14. Performance of a 100J cryogenically cooled multi-slab amplifier with respect to the pump beam parameters and geometry

    Divoký, Martin; Sawicka, Magdalena; Lucianetti, Antonio; Novák, Jakub; Mocek, Tomáš; Rus, Bedřich

    Bellingham : SPIE, 2012 - (Clarkson, W.; Shori, R.) ISBN 978-0-8194-8878-7. ISSN 0277-786X. - (Proceedings of SPIE. 8235). [Conference on Solid State Lasers - Technology and Devices /21./. San Francisco (US), 22.01.2012-25.01.2012] R&D Projects: GA MŠk ED2.1.00/01.0027 Grant ostatní: HILASE(XE) CZ.1.05/2.1.00/01.0027 Institutional support: RVO:68378271 Keywords : multi-slab * amplifier * cryogenical cooling * amplified spontaneous emission Subject RIV: BH - Optics, Masers, Lasers

  15. Front end for ELI-Beamlines’ 100 J cryogenically-cooled Yb:YAG multi-slab amplifier with temporal pulse shaping capability

    Green, Jonathan T.; Naylon, Jack A.; Mazanec, Tomáš; Horáček, Martin; Bakule, Pavel; Rus, Bedřich

    Bellingham: SPIE, 2014 - (Clarkson, W.; Shori, R.), "89590X-1"-"89590X-6". (Proceedings of SPIE. 8959). ISBN 978-0-8194-9872-4. ISSN 0277-786X. [Solid State Lasers XXIII - Technology and Devices. San Francisco (US), 02.02.2014-04.02.2014] R&D Projects: GA MŠk ED1.1.00/02.0061 Grant ostatní: ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061 Institutional support: RVO:68378271 Keywords : Yb:YAG * chirped volume Bragg grating * regenerative amplifier * chirped fiber Bragg grating, Subject RIV: BH - Optics, Masers, Lasers

  16. Compact thin-disk picosecond regenerative amplifier at 1 kHz with chirped volume Bragg grating compressor

    Novák, Jakub; Bakule, Pavel; Green, Jonathan T.; Hříbek, Petr; Rus, Bedřich

    Bellingham: SPIE, 2014 - (Clarkson, W.; Shori, R.), "89591C-1"-"89591C-6". (Proceedings of SPIE. 8959). ISBN 978-0-8194-9872-4. ISSN 0277-786X. [Solid State Lasers XXIII - Technology and Devices. San Francisco (US), 02.02.2014-04.02.2014] R&D Projects: GA MŠk ED1.1.00/02.0061 Grant ostatní: ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061 Institutional support: RVO:68378271 Keywords : Yb: YAG * chirped volume Bragg grating * regenerative amplifier * chirped fiber Bragg grating Subject RIV: BH - Optics, Masers, Lasers

  17. Design and modeling of kW-class thin-disk lasers

    Smrž, Martin; Severová, Patricie; Mocek, Tomáš

    Bellingham: SPIE, 2012 - (Clarkson, W.; Shori, R.). (Proceedings of SPIE. 8235). ISBN 978-0-8194-8878-7. ISSN 0277-786X. [Conference on Solid State Lasers - Technology and Devices /21./. San Francisco (US), 22.01.2012-25.01.2012] R&D Projects: GA MŠk ED2.1.00/01.0027 Grant ostatní: HILASE(XE) CZ.1.05/2.1.00/01.0027 Institutional research plan: CEZ:AV0Z10100523 Keywords : thin-disk laser * thin-disk laser head * Monte Carlo ray-tracing * solid state laser Subject RIV: BH - Optics, Masers, Lasers

  18. Jitter-compensated Yb:YAG thin-disc laser as a pump for the broadband OPCPA front-end of the ELI-Beamlines system

    Antipenkov, Roman; Green, Jonathan T.; Batysta, František; Naylon, Jack A.; Zervos, Charalampos; Novák, Jakub; Bakule, Pavel; Rus, Bedřich

    Bellingham: SPIE, 2014 - (Clarkson, W.; Shori, R.), "895917-1"-"895917-7". (Proceedings of SPIE. 8959). ISBN 978-0-8194-9872-4. ISSN 0277-786X. [Solid State Lasers XXIII - Technology and Devices. San Francisco (US), 02.02.2014-04.02.2014] R&D Projects: GA MŠk ED1.1.00/02.0061 Grant ostatní: ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061 Institutional support: RVO:68378271 Keywords : thin-disc laser * timing jitter * OPCPA Subject RIV: BH - Optics, Masers, Lasers

  19. Fiscal 1998 R and D project on global environmental industrial technology. Research result report on DNA analysis and information processing technology for photosynthesis microorganisms (Development of CO{sub 2} fixation and effective use technology by using bacteria and algae); 1998 nendo chikyu kankyo sangyo gijutsu kenkyu kaihatsu jigyo. Kogosei biseibutsu nado DNA kaiseki joho shori gijutsu no kenkyu (saikin sorui nado riyo nisanka tanso koteika yuko riyo gijutsu kaihatsu) seika hokokusho



    This report summarizes the fiscal 1998 research result on DNA analysis and information processing technology for photosynthesis microorganisms. On the study on DNA analysis technology by triple-strand formation method, as the comparison study result of a READ method, stable triple- strand formation method and hairpin method, a READ method showed the highest triple-strand formation efficiency for target DNA. On the study on accurate separation technology of specific genes, establishment of protocols was promoted for solid-phase probe technology, subtract technology and leveling technology. On the study on DNA microarray analysis technology by high-efficiency hybridization method, the analysis technology of genes by hybridization method using DNA chips is under investigation. In addition, the high- efficiency analysis technology of specific DNA segments by using an affinity sensor, and the high-accuracy cloning technology for DNA with altered primary structure were also studied. (NEDO)

  20. Fiscal 1996 international research cooperation project. Feasibility study of finding out the seeds of international joint research (technology for effective use of saturated hydrocarbon, technology for reducing excess of aromatic hydrocarbon, high-grade treatment technology of petroleum coke); 1996 nendo kokusai kenkyu kyoryoku jigyo. Kokusai kyodo kenkyu seeds hakkutsu no tame no FS chosa (howa tanka suiso no yuko riyo gijutsu, hokozoku tanka suiso no yojo taisaku gijutsu, sekiyu cokes no kodo shori gijutsu)



    This project is aimed at internationally cooperating in the R and D of industrial technology and improving industrial technology of Japan. For it, the following three technologies were investigated: (1) technology for effective use of saturated hydrocarbon, (2) technology for reducing excess of aromatic hydrocarbon, (3) high-grade treatment technology of petroleum coke. In (1), surveys were conducted of technologies of effective use of natural gas and effective use of C4 saturated hydrocarbon. Surveyed were a method for producing synthesis gas from natural gas, a technology to liquefy natural gas into fuel following the synthesis gas production process, a technology to liquefy natural gas into fuel without the synthesis gas production process, and the trend of effective use of C4 saturated hydrocarbon. In (2), surveys were made of process to reduce production of aromatic hydrocarbon as much as possible, process to effectively separate aromatic hydrocarbon, and process to convert excess aromatic hydrocarbon into polymer, etc. In (3), surveys were conducted on petroleum coke and pitch in terms of production methods, the supply/demand situation, property characteristics, usability to new fields, etc. 170 refs., 114 figs., 65 tabs.

  1. Comparative design study of 100 J cryogenically cooled Yb:YAG multi-slab amplifiers operating at 10 Hz

    Sikocinski, Pawel; Divoký, Martin; Sawicka, Magdalena; Lucianetti, Antonio; Novák, Jakub; Rus, Bedřich; Mocek, Tomáš

    Bellingham: SPIE, 2012 - (Clarkson, W.; Shori, R.). (Proceedings of SPIE. 8235). ISBN 978-0-8194-8878-7. ISSN 0277-786X. [Conference on Solid State Laser s - Technology and Devices /21./. San Francisco (US), 22.01.2012-25.01.2012] R&D Projects: GA MŠk ED1.1.00/02.0061; GA MŠk ED2.1.00/01.0027 Grant ostatní: HILASE(XE) CZ.1.05/2.1.00/01.0027; ELI Beam lines(XE) CZ.1.05/1.1.00/02.0061 Institutional support: RVO:68378271 Keywords : DPSSL * Yb:YAG * cryogenically cooled amplifier * pulsed high average power laser Subject RIV: BH - Optics, Masers, Laser s

  2. High energy, picosecond regenerative thin disk amplifier at 1 kHz

    Chyla, Michal; Smrž, Martin; Mocek, Tomáš

    Bellingham: SPIE, 2012 - (Clarkson, W.; Shori, R.). (Proceedings of SPIE. 8235). ISBN 978-0-8194-8878-7. ISSN 0277-786X. [Solid State Lasers XXI: Technology and Devices. San Francisco (US), 22.01.2012-25.01.2012] R&D Projects: GA MŠk ED1.1.00/02.0061; GA MŠk ED2.1.00/01.0027 Grant ostatní: ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061; HILASE(XE) CZ.1.05/2.1.00/01.0027 Institutional support: RVO:68378271 Keywords : Yb: YAG * thin-disk * regenerative amplifier * high energy * picosecond pulses * CPA * amplification * lasers Subject RIV: BH - Optics, Masers, Lasers

  3. Fiscal 1997 report on the results of the international research cooperation project for a feasibility survey for finding out seeds of the international joint research. Effective use technology of saturated hydrocarbon (technology against the surplus aromatic hydrocarbon/technology of high grade treatment of petroleum coke); 1997 nendo kokusai kenkyu kyoryoku jigyo (kokusai kyodo kenkyu seeds hakkutsu no tame no FS chosa). Howa tanka suiso no yuko riyo gijutsu / hokozoku tanka suiso no yojo taisaku gijutsu / sekiyu cokes no kodo shori gijutsu seika hokokusho



    For the purpose of the effective international research cooperation, the paper surveyed in fiscal 1997 the effective use technology of saturated hydrocarbon, technology against the surplus aromatic hydrocarbon and technology of high grade treatment of petroleum coke. In the survey of the effective use technology of saturated hydrocarbon, trends of FT synthesis technology and DME synthesis technology were studied as trends of technology to produce synthetic gas, and a project was proposed for technical development of using natural gas as liquid fuel in Japan. In the survey of technology against the surplus aromatic hydrocarbon, studied were the benzene law regulation and the supply/demand trend of aromatic hydrocarbon, process to reduce production of aromatic hydrocarbon as much as possible, process to reduce aromatics of the produced petroleum products, and process to effectively use aromatic hydrocarbon as chemical raw material. In the survey of high grade treatment of petroleum coke, studied were a possibility of using HS petroleum coke in the DIOS method, iron bath gasification, and copper bath gasification technology. 108 refs., 146 figs., 103 tabs.

  4. Up-scaled Teer-UDP850/4 Unbalanced Magnetron Deposition System Used for Mass-Production of CrTiAlN Hard Coatings

    ZHANGGuo-jun; YANGShi-cai; JIANGBai-ling; BAILi-jing; CHENDi-chum; WENXiao-bin; TEERD.G.


    Up-sca]ed deposition process of Teer-UDP850/4 has been established and used for massive production of CrTiAlN hard coatings in applications of anti-wear, cutting and forming tools. This deposition system uses four magnetrons that are arranged by unbalanced magnets to fomt closed magnetic field enabling the system running in high current density. Elemental metals of Cr, Ti and Al are used as the target materials which are co-deposited with nitrogen forming nlultialloy nitride, nanoscale multi-layer or superlattice hard coatings. The stthstrate turntable is designed as planet rotation mechanism with three folds so that components or tools with complicate geometry can be uniformly coated onto all their surfaces and cutting edges. The pawer units for the magnetrons are straight dc whilst the substrate is biased by pulsed de. Two solid heaters are installed in the system to enable running a wide range of deposition temperature from 200℃ to 500℃. The pumping system is powerful that incorporated with a polycold to pump the system to a good vacuum in a very shori time. A front door and a movable substrate table are available to benefit easily loading and unloading. Deposition procedure. properties and performance of the coatings is also presented in this paper.