WorldWideScience

Sample records for sanjigen eizo shindan

  1. Fiscal 1998 survey report. Medical equipment (Development of fine sampling/analysis system for blood / Development of high-precision 3-D image diagnosis system / Development of low-invasion operation support system / Total development of artificial internal organ technologies); 1998 nendo chosa hokokusho. Iryo kiki (ketsuekinado biryo saishu, biryo bunseki system kaihatsu/koseido sanjigen eizo shindan system kaihatsu/teishinshu shujutsu shien system kaihatsu/jinko zoki gijutsu sogo kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For efficient medical care supply systems, the R and D of advanced medical care technology and equipment largely contribute to productivity improvement for medical care services. Among them, a progress of medical care technology is becoming important for preparation of efficient and fair supply systems. MITI thus established 'Medical care and welfare equipment development project' in 1994, and has promoted the strategic long-term R and D project of medical care and welfare equipment as joint R and D project of NEDO and private enterprises. In fiscal 1998, on the development of the fine sampling/analysis system for blood, the high- precision 3-D image diagnosis system, the low-invasion operation support system, and the artificial internal organ technologies since fiscal 1996, this project clarified essential technical issues based on the future view, selected some themes to be newly developed in the future, and surveyed and evaluated the details of their R and D concretely. (NEDO)

  2. Achievement report for fiscal 1999 on research and development of technologies for medical welfare equipment. Intravascular 3D ultrasound imaging system for supporting less invasive diagnosis; 1999 nendo iryo fukushi kiki gijutsu kenkyu kaihatsu seika hokokusho. Shindan shiengata choonpa kekkannai sanjigen imaging system

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-05-01

    An ultrasonic probe with its point fine is navigated in blood vessels and body cavities by 3-dimensional ultrasonic signals (with the oscillator driven by transmission from a catheter for position detection) for the acquisition of accurate 3-dimensional ultrasound images in a less invasive way. The transmission and reception circuits are provided with circuits for ultrasound tomographic images and for navigation. Trial units are fabricated and tested for transmission waveform and reception performance. The scanner is rotated for the acquisition of intravascular 3-dimensional radial images. The scanner rotating rate is set at 30 rps for the scanner performance not to be affected by heartbeat and the rate is controlled by the observation unit which changes voltage for the control. The 3-dimensional display software program, thanks to the navigation function of the external probe, detects the external probe position relative to the small-diameter probe for the construction of accurate 3-dimensional images. Specifications for a total system, which makes full use of a navigation function, are compiled, consisting of a small-diameter probe and a body surface real-time 3-dimensional display. (NEDO)

  3. Fiscal 1996 report on the comprehensive invetigational research on medical instruments. Development of a trace collection/microanalysis system of blood, etc.; development of a high accuracy three dimensional image diagnosis system; development of a low invasion operation supporting system; development of artificial internal organ technology; 1996 nendo chosa hokokusho sogo chosa kenkyu (iryo kiki). Ketsuekinado biryo saishu/biryo bunseki system kaihatsu, koseido sanjigen gazo shindan system kaihatsu, teishinshu shujutsu shien system kaihatsu, jinko zoki gijutsu sogo kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    In accordance with the rapidly advancing phenomena of decreasing in number of child and aging in Japan, enhancement in quality of medical care and welfare is an issue to be urgently considered, and importance of the support by technology of medical instruments is increasing. The purpose of this research is to extract subjects of the element technology, which will be important strategically and in the long run, from two viewpoints of the needs side and seeds side to study the course of the development of medical instruments. For this, questionnaires were sent out to learned persons in charge of work connected with medical care to grasp the needs for the future development of medical instruments. Based on them, the paper extracted subjects of the element technology which are considered to become strategically important in Japan. The report outlined the investigational research and arranged the methods and results of the survey of the needs for the development of medical instruments. Next, the paper described the method to extract important subjects of the element technology from the needs survey, and then arranged important subjects of the element technology extracted through the study in the committee. At last, the paper generalized the investigational research and summarized the remaining subjects, etc. at the same time. 11 tabs.

  4. SDI HDTV video transmission unit; SDI high vision eizo denso sochi

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The number is increasing of broadcasting stations who use HDTV (high-definition television) signals for program formulation for the improvement of video quality for general broadcasting programs. The above-named unit, which transmits HDTV signals which are broadcasting materials over a long distance with their high quality well preserved, is capable of the optical transmission of SDI (serial digital interface) signals meeting the standards of BTA (Broadcasting Technologies Association) on 1 video channel and 2 digital audio channels. It can also work on the light wavelength multiplex system. It was developed under the guidance of TTNet (Tokyo Telecommunication Network Co., Inc.), and gained public favor when it successfully transmitted programs over a distance of approximately 400km from Nagano to Tokyo during the Nagano Olympic Games. It now transmits various high-quality video signals for instance in the relay of baseball games, thereby contributing to the improvement of video quality for broadcasting. (translated by NEDO)

  5. Profitability diagnosis of refinery and improvement proposal; Seiyusho no shueki shindan to kaizen teian

    Energy Technology Data Exchange (ETDEWEB)

    Aoyama, H.

    2000-07-01

    Based on consulting service RPS-J under joint operation of Nikki, UOP LLC of U.S.A. and Nikki Universal, approaching ways applied for profitability improvement and improvement proposal for refineries and analyzing techniques used for resolution of process bottlenecks were described. In RPS-J, themes of (1) energy saving, (2) quality upgrading, (3) improvement of disintegrating ratio, (4) reduction of give-away, (5) improvement of equipment operation ratio, (6) reduction of maintenance cost, (7) effective utilization of catalysts, are considered for profitability improvement fields. Procedures from idea excavation for profitability improvement to realization of profitability improvement are carried out in the order of, (1) Grasping of the present state, (2) Excavation of improving items and selection, (3) Quantitative evaluation of draft profitability improvement plan and focusing, (4) Profitability improvement by operation improvement, (5) Profitability improvement by minor improvement, (6) Profitability improvement in middle- and long-term vision, (7) Final focusing by feasibility study. Afterwards, examination to economically solve bottlenecks of critical facilities, examination on bottlenecks of distillation tower and refining tower and utility analysis are carried out. RPS-J was already applied to 4 refineries including Muroran Refinery and Negishi Refinery of Nisseki Mitsubishi, and profitability improvement themes were found to improve profitability of 50 to 150 cents per barrel. (NEDO)

  6. 3D-image theater system using TLP770J LCD data projector; Ekisho data projector wo mochiita rittai eizo theater system

    Energy Technology Data Exchange (ETDEWEB)

    Kawasato, H. [Toshiba Corp., Tokyo (Japan)

    2000-02-01

    In today's multimedia era, visual systems are widely used not only for two-dimensional images but also for the depiction of virtual reality and for simulated three-dimensional images. At the same time, the projection technology used in large-screen projectors is shifting from the cathode ray tube (CRT) to the liquid crystal display (LCD). Toshiba has developed a simplified 3D-image theater system using the TLP770J LCD data projector, which offers easy maintenance and lower costs. (author)

  7. Faults survey by 3D reflection seismics; Sanjigen hanshaho jishin tansa ni yoru danso chosa

    Energy Technology Data Exchange (ETDEWEB)

    Tsuchiya, T; Ejiri, T; Yamada, N; Narita, N; Aso, H; Takano, H; Matsumura, M [Dia Consultants Company, Tokyo (Japan)

    1996-10-01

    This paper describes fault survey by 3D seismic reflection exploration. Survey has been conducted mainly at flat land area without pavement not in urban area in Japan. Subsurface structure is complicated with intersecting multiple faults. In this area, a lot of geological investigations have been done prior to the seismic reflection exploration. Fairly certain images of faults have been obtained. However, there were still unknown structures. Survey was conducted at an area of 170m{times}280m in the CDP range. Measurements were carried out by using 100 g of dynamite per seismic generation point combined with 40 Hz velocity geophones. Fixed distribution consisting of lattice points of 12{times}12 was adopted as an observation method. In and around the lattice, a great number of explosions were carried out. The CDP stacking method and the method of migration after stacking were used for the data processing. The 3D structures of six horizons and five faults could be interpreted. Interpreted horizons were well agreed with the logging results. 3 figs.

  8. Three dimensional wavefield modeling using the pseudospectral method; Pseudospectral ho ni yoru sanjigen hadoba modeling

    Energy Technology Data Exchange (ETDEWEB)

    Sato, T; Matsuoka, T [Japan Petroleum Exploration Corp., Tokyo (Japan); Saeki, T [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-05-27

    Discussed in this report is a wavefield simulation in the 3-dimensional seismic survey. With the level of the object of exploration growing deeper and the object more complicated in structure, the survey method is now turning 3-dimensional. There are several modelling methods for numerical calculation of 3-dimensional wavefields, such as the difference method, pseudospectral method, and the like, all of which demand an exorbitantly large memory and long calculation time, and are costly. Such methods have of late become feasible, however, thanks to the advent of the parallel computer. As compared with the difference method, the pseudospectral method requires a smaller computer memory and shorter computation time, and is more flexible in accepting models. It outputs the result in fullwave just like the difference method, and does not cause wavefield numerical variance. As the computation platform, the parallel computer nCUBE-2S is used. The object domain is divided into the number of the processors, and each of the processors takes care only of its share so that parallel computation as a whole may realize a very high-speed computation. By the use of the pseudospectral method, a 3-dimensional simulation is completed within a tolerable computation time length. 7 refs., 3 figs., 1 tab.

  9. 3D pre-stack time migration; Kiruhihoffuho ni yoru sanjigen jugo mae jikan migration shori

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-05-27

    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.

  10. Near-surface 3D reflections seismic survey; Sanjigen senso hanshaho jishin tansa

    Energy Technology Data Exchange (ETDEWEB)

    Nakahigashi, H; Mitsui, H; Nakano, O; Kobayashi, T [DIA Consultants Co. Ltd., Tokyo (Japan)

    1997-05-27

    Faults are being actively investigated across Japan since the Great Hanshin-Awaji Earthquake. Discussed in this report is the application of the 3D near-surface reflection seismic survey in big cities. Data from trenching and drilling is used for the geological interpretation of the surroundings of a fault, and the reflection seismic survey is used to identify the position, etc., of the fault. In this article, when the results obtained from the experimental field are examined, it is found that the conventional 2D imaging reflection survey betrays the limit of its capability when the geological structure is complicated, that the 3D reflection seismic survey, on the contrary, is capable of high-precision imaging and, when augmented by drilling, etc., becomes capable of a more detailed interpretation, and that it also contributes effectively to the improvement of local disaster prevention in big cities. Using as the model the Tachikawa fault that runs near JR Tachikawa Station, embodiment of the 3D reflection seismic survey is reviewed. For the acquisition of data excellent in quality in a 3D reflection seismic survey conducted utilizing the roads in the sector chosen for experiment in the urban area, the shock generating points and receiving points should be positioned by taking into account the parameters in the bin arranging process so that the mid-points will be regularly distributed on the surface. 3 refs., 11 figs., 1 tab.

  11. Cardiovascular angiography system Infinix{sub TM} CB; Shinzoyo junkanki shindan system Infinix{sub TM} CB

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    A cardiovascular angiography system Infinix{sub TM} CB is developed, which is a dedicated system for cardiovascular catheter treatment (intervention), from PTCA (percutaneous transluminal coronary angioplasty) down, capable of two-way biplanar photography. It is designed to be thoroughly operator-friendly, and some of its features are stated below. It is capable of high-speed biplanar positioning at the maximum speed of 10 degrees/second (25% faster than in the conventional type). A side beam vertical motion mechanism is provided rendering biplanar framing faster and easier. Hyper-handling is embodied with ergonomics introduced into the system. (translated by NEDO)

  12. Cardiovascular angiography system Infinix[sub TM] CB. Shinzoyo junkanki shindan system Infinix[sub TM] CB

    Energy Technology Data Exchange (ETDEWEB)

    1999-03-01

    A cardiovascular angiography system Infinix[sub TM] CB is developed, which is a dedicated system for cardiovascular catheter treatment (intervention), from PTCA (percutaneous transluminal coronary angioplasty) down, capable of two-way biplanar photography. It is designed to be thoroughly operator-friendly, and some of its features are stated below. It is capable of high-speed biplanar positioning at the maximum speed of 10 degrees/second (25% faster than in the conventional type). A side beam vertical motion mechanism is provided rendering biplanar framing faster and easier. Hyper-handling is embodied with ergonomics introduced into the system. (translated by NEDO)

  13. Development of diagnosis and repair system for steelmaking refractories; Seikoyo taikabutsu no shindan hoshu gijutsu no kakuritsu

    Energy Technology Data Exchange (ETDEWEB)

    Aso, S.; Harada, S.; Tsutsui, Y. [Nippon Steel Corp., Tokyo (Japan)

    1996-06-01

    The latest measurement equipment and repair method were introduced into the work area of all refractories in the process of torpedo cars, hot metal preliminary treatment, hot metal pans, secondary refining, and cast pans so as to improve the cost of the newest advanced steelmaking refractories. As a result, the refractory cost could be reduced by 10%. This paper introduces the improvement in RH refractories and refractories for hot metal preliminary treatment. As for basic items, in addition to the visual observation, the thickness of refractories was quantified using equipment (laser profile meter, thermotracer, and NS sensor) for the furnace stop in the minimum remaining length. An ITV was also installed in the facilities where the visual check is difficult to carry out. Repair is mainly done by spraying. A thermal spraying repair method with high durability was used for the repair. A method that relieves a thermal shock was used for preheating. Moreover, measures that make the temperature gradient in the thickness direction uniform by using newly developed microwave drying equipment were taken for drying of unburned refractories. 4 refs., 13 figs., 2 tabs.

  14. Study on fault diagnostic system using modularized knowledge; Mojuru gata chishiki wo mochiita ijo shindan system ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Shimada, Y.; Sayama, H.; Suzuki, K. [Okayama Univ. (Japan). Dept. of Industrial and Mechanical Engineering

    1997-08-15

    Recently, a fault diagnostic expert system was prosperously developed as an objective of chemical plants and nuclear power plants. In this paper, a fault diagnostic method using modularized knowledge was proposed, a fault diagnostic system was constructed for an experimental plant, and the effectiveness of this method was clarified by carrying out a fault diagnostic experiment. The characteristics of the proposed fault diagnostic system were as follows: The necessary knowledge for diagnosing faults was made into each process element. Based on this method, the revision and addition of a knowledge base could be carried out in each element, and the design change of a plant could be flexibly corresponded by only changing the related part of the process flow graph. The estimated results were stored into the working memory, not only faults of an element in which faults resulted could be estimated, but also the fault propagating path could be clarified. 8 refs., 6 figs., 3 tabs.

  15. Investigation of data acquisition parameters for Minami Noshiro 3D experiment using 3D seismic modeling; Sanjigen hado denpa modeling wo riyoshita Minami Noshiro sanjigen jishin tansa data shutoku parameter no kento

    Energy Technology Data Exchange (ETDEWEB)

    Tanaka, H; Nakagami, K; Minegishi, M [Japan National Oil Corp., Tokyo (Japan). Technology Research Center; Kano, R [Teikoku Oil Co. Ltd., Tokyo (Japan)

    1996-10-01

    This paper describes how to grasp the characteristics of reflected waves which means how the reflected wave can be received in its magnitude depending on the complicated subsurface structure. Data acquisition parameters were also investigated, as to offset distance distribution and mute setting during the HMO correction. A velocity structure model was prepared for an area of 9km{times}8km including the given 3D seismic exploration area at Minami Noshiro, Akita Prefecture. For the geological sequence used for the velocity structure model, three formations, i.e., Katsurane Formation, Funakawa Formation, and Onagawa Formation, were inputted in an order from the shallower depth on the basis of the depth structure profile obtained from the previous data. Ray tracing was calculated by means of the two-dot dashed line tracing method. For this method, amplitude as well as travel time of waves can be calculated at the same time. This was effective for grasping the magnitude of reflected wave on simulating the traced data. For the velocity structure model used in this study, existing data inputted were old, which limited the quantity of information. However, this model would sufficiently contribute to the verification of survey design and the determination of optimal layout. 1 ref., 3 figs.

  16. Three dimensional reflection velocity analysis based on velocity model scan; Model scan ni yoru sanjigen hanshaha sokudo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

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

    1996-05-01

    Introduced herein is a reflection wave velocity analysis method using model scanning as a method for velocity estimation across a section, the estimation being useful in the construction of a velocity structure model in seismic exploration. In this method, a stripping type analysis is carried out, wherein optimum structure parameters are determined for reflection waves one after the other beginning with those from shallower parts. During this process, the velocity structures previously determined for the shallower parts are fixed and only the lowest of the layers undergoing analysis at the time is subjected to model scanning. To consider the bending of ray paths at each velocity boundaries involving shallower parts, the ray path tracing method is utilized for the calculation of the reflection travel time curve for the reflection surface being analyzed. Out of the reflection wave travel time curves calculated using various velocity structure models, one that suits best the actual reflection travel time is detected. The degree of matching between the calculated result and actual result is measured by use of data semblance in a time window provided centering about the calculated reflective wave travel time. The structure parameter is estimated on the basis of conditions for the maximum semblance. 1 ref., 4 figs.

  17. Suppression of 3D coherent noise by areal geophone array; Menteki jushinki array ni yoru sanjigen coherent noise no yokusei

    Energy Technology Data Exchange (ETDEWEB)

    Murayama, R; Nakagami, K; Tanaka, H [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1996-05-01

    For improving the quality of data collected by reflection seismic exploration, a lattice was deployed at one point of a traverse line, and the data therefrom were used to study the 3D coherent noise suppression effect of the areal array. The test was conducted at a Japan National Oil Corporation test field in Kashiwazaki City, Niigata Prefecture. The deployed lattice had 144 vibration receiving points arrayed at intervals of 8m composing an areal array, and 187 vibration generating points arrayed at intervals of 20m extending over 6.5km. Data was collected at the vibration receiving points in the lattice, each point acting independently from the others, and processed for the composition of a large areal array, with the said data from plural vibration receiving points added up therein. As the result of analysis of the records covering the data collected at the receiving points in the lattice, it is noted that an enlarged areal array leads to a higher S/N ratio and that different reflection waves are emphasized when the array direction is changed. 1 ref., 6 figs.

  18. Three-dimensional TDEM modeling using integral equation method. 2; Sekibun hoteishikiho ni yoru TDEM no sanjigen modeling. 2

    Energy Technology Data Exchange (ETDEWEB)

    Noguchi, K; Endo, M [Waseda University, Tokyo (Japan). School of Science and Engineering

    1996-05-01

    A study was made about integral equation-assisted numerical calculation in a time domain electromagnetic (TDEM) 3D modeling. The total number of cells should be minimized now that the time required for calculation depends a great deal upon the total number of cells. On the assumption of a thin plate-like layer of anomaly in presence, with its center positioned just below the receiving point and with its entirety buried in a homogeneous 100 Ohm m medium, the correlation between the distance and the maximum cell length in the horizontal direction and the method of dividing were examined. As the result, it was found that a dividing method respecting the exponential function shortens the calculation time and that, for obtaining a true response and for minimizing the calculation time, the length of the horizontal side of the cell nearest to the transmission source needs be set to be not more than 1/2 of the distance. It was also found that the length of the side in the direction of depth of the topmost cell needs be set to be not more than approximately 1/3 of the depth of the upper surface of the plate-shaped anomaly. 2 refs., 10 figs., 2 tabs

  19. Development of three-dimensional pipe bending technology; Pipe zai no sanjigen mage kako gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Takeuchi, K; Takeda, S [Aisin Seiki Co. Ltd., Aichi (Japan)

    1997-10-01

    Recently, automotive parts uses move resin products or pipe-like products in order to achieve high quality or light weight. Additionally, the shape of automotive parts becomes more complicated. The rotary stretch bending method, although it is most popular method of bending a pipe, has some problems, such as a bending radius is limited due to use of bending mold, a thickness of an outer side of a bending portion is thinner, and a product is scratched easily during manufacturing. We have developed a three dimensional pipe bending process using a floating expanding plug and confirmed that this method can solve the above problems. 2 refs., 9 figs., 3 tabs.

  20. Three-dimensional TDEM modeling using finite-difference method; Sabunho ni yoru TDEM ho no sanjigen modeling

    Energy Technology Data Exchange (ETDEWEB)

    Noguchi, K; Endo, M [Waseda University, Tokyo (Japan). School of Science and Engineering

    1997-10-22

    Study is made on the theory of three-dimensional modelling of TDEM (Time Domain Electromagnetic) method based on the theory of Wang and Hohmann. A difference scheme is built and investigation is conducted about calculation accuracy with attention paid especially to space and time division, and the obtained optimum value is compared with the analytical solution for a homogeneous medium. As the result, it becomes possible to have a high-accuracy TDEM response thanks to the obtained optimum parameter. In an example, a response is determined in the case of a high-resistivity body in presence near the ground surface. Calculation is performed under the given conditions of a medium 100 ohm/m in resistivity, anomalous bodies 200, 500, 1000, 2000,5000, and 10,000 ohm/m in resistivity, respectively, and a distance in the direction of depth of 20m. The result indicates that it is possible to estimate the effect of the ground surface terrain on a TDEM response. Since the effect of the ground surface terrain emerges at the initial part of a response, it is inferred that consideration of terrain is mandatory in building a model if it is for interpreting the subsurface structure in detail. 5 refs., 7 figs.

  1. 3-D modeling of surface, borehole, and airborne EM methods; Chijo konai kuchu denjiho no sanjigen modeling

    Energy Technology Data Exchange (ETDEWEB)

    Sasaki, Y [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    1997-10-22

    Three-dimensional modelling methods using the difference method and finite element method are applied to the simulations respectively of the surface electromagnetic method, borehole electromagnetic method, and airborne electromagnetic method, and they are compared with each other in point of accuracy and practicality. The object of calculation in this study is a 3-D model which is a semi-finite medium 100 ohm/m in resistivity that contains a rectangular parallelopiped 1 ohm/m in resistivity. A vertical magnetic dipole is installed on the surface in the surface electromagnetic method, providing a vertical magnetic field on the surface. In the borehole electromagnetic method, a vertical magnetic dipole is placed in a borehole and the resultant vertical magnetic field is measured at a station in another borehole. In the airborne electromagnetic method, the flight level is 20m high and the distance between the source and the receiving point is 10m. The results of calculation all agree well with the results of calculation previously made known. When the difference method and finite element method are compared, it is found that the finite element method requires calculation time and memory capacity two to three times more than the difference method. 5 refs., 9 figs.

  2. Three-dimensional analysis of the magnetic structure in Hokkaido, Japan; Hokkaido no sanjigen jiki kozo kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Makino, M [Geological Survey of Japan, Tsukuba (Japan)

    1996-10-01

    The magnetic structure in Hokkaido was quantitatively analyzed by the magnetic anomaly distribution. This paper describes its characteristics. Detection of structural boundaries and 3-D analysis of double-layer structure were conducted for the regional magnetic data in a region with about 500 km square. There was not so large difference in patterns of magnetic anomaly distribution between the case that the direction of magnetization was set at 45{degree} to the west during the geomagnetic conversion according to Segawa and Oshima and the case that it was set as same as the current geomagnetic direction. The method of Blakely and Simpson was useful to detect the boundaries of magnetic structures. The structural boundaries obtained were more linear than the iso-magnetic contour lines. A new method has been conceived in which the approximation of 3-D magnetic structure analysis can be deduced, and the irregularity of magnetic basement can be determined by the repeated calculation. In practice, this method was applied to the magnetic data in the whole Hokkaido. The calculation was stably converged. It was found that the magnetic structure obtained in the Kamuikotan/Ishikari-Kitakami magnetic belt exhibited a fault structure having steep slopes accompanied by the basin structure in the western boundaries. 19 refs., 6 figs.

  3. Three-dimensional magnetotelluric modeling using SLDM method; Supekutoru bunkai wo fukashita ranchosu process ni motozuku MT ho sanjigen keisan

    Energy Technology Data Exchange (ETDEWEB)

    Yamane, K; Takasugi, S [GERD Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan)

    1996-10-01

    For 3-D magnetotelluric (MT) modeling, spectral Lanczos decomposition method (SLDM) was applied as high-speed high- accuracy modeling algorithm. SLDM was developed by Druskin to reduce computational time considerably by obtaining responses in the whole frequency domain all at once. The computational time of 3-D modeling was reduced by introducing Maxwell`s equation and Lanczos matrix as transformation matrix. The computation was carried out on the 1km{times}2km{times}2km low resistivity model body of 5 ohm{center_dot}m supposed in the uniform ground of 100 ohm{center_dot}m using 43{times}43{times}31 nodes at 17 frequencies ranging from 0.01Hz to 100Hz. Apparent resistivity at lower frequency decreased with approach to the low resistivity body. The computational time amounted to 6 hours 14 minutes. The 3-D MT modeling using SLDM method was independent of frequency, and its algorithm was superior in computational speed, however, it was inferior in computational time as the number of measuring nodes increased. 2 refs., 3 figs.

  4. 3D seismic experiment in difficult area in Japan; Kokunai nanchiiki ni okeru sanjigen jishin tansa jikken

    Energy Technology Data Exchange (ETDEWEB)

    Minegishi, M; Nakagami, K; Tanaka, H [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-05-27

    Difficult area in this context means an exploration-difficult area supposed to store oil/gas but retarded in exploration for the lack of knowledge about the geological structure due to poor quality of available seismic survey records. Discussed in this paper is a survey conducted into an area covering the southern part of Noshiro-shi, Akita-ken, and Yamamoto-cho, Yamamoto-gun, Akita-ken. An area size suitable for data collection at a target depth of 2500m is determined using an interpretation structure compiled on the basis of available well data and 2D seismic survey data. The plan for siting shock points and receiving points is modified case by case as restrictive factors come to the surface (resulting from the complicated hilly terrain, presence of pipes for agricultural water, etc.). The peculiarities of seismic waves in the terrain are studied through the interpretation of the available well data and 2D seismic survey data for the construction of a 3D velocity model for the confirmation of the appropriateness of the plan for siting shock points and receiving points. Efforts are exerted through enhanced coordination with the contractor to acquire data so that a technologically best design may be won within the limits of the budget. The quality of the data obtained from this experiment is in general better than those obtained from previous experiments, yet many problems remain to be settled in future studies about exploration-difficult areas. 4 refs., 4 figs., 1 tab.

  5. Flat plate approximation in the three-dimensional slamming; Heiban kinji ni yoru sanjigen suimen shogeki keisanho ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Toyama, Y. [Mitsui Engineering and Shipbuilding Co. Ltd., Tokyo (Japan)

    1996-12-31

    A slamming load generated by interactive motions between a ship body and water face is an important load in ensuring safety of the ship. A flat plate approximation developed by Wagner is used as a two-dimensional slamming theory, but it has a drawback in handling edges of a flat plate. Therefore, an attempt was made to expand the two-dimensional Wagner`s theory to three dimensions. This paper first shows a method to calculate water face slamming of an arbitrary axisymmetric body by using circular plate approximation. The paper then proposes a method to calculate slamming pressure distribution and slamming force for the case when shape of the water contacting surface may be approximated by an elliptic shape. Expansion to the three dimensions made clear to some extent the characteristics of the three-dimensional slamming. In the case of two dimensions or a circular column for example, the water contacting area increases rapidly in the initial stage generating large slamming force. However, in the case of three dimensions, since the water contacting area expands longitudinally and laterally, the slamming force tends to increase gradually. Maximum slamming pressure was found proportional to square of moving velocity in a water contacting boundary in the case of three dimensions, and similar to stagnation pressure on a gliding plate. 12 refs., 17 figs., 1 tab.

  6. Flat plate approximation in the three-dimensional slamming; Heiban kinji ni yoru sanjigen suimen shogeki keisanho ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Toyama, Y [Mitsui Engineering and Shipbuilding Co. Ltd., Tokyo (Japan)

    1997-12-31

    A slamming load generated by interactive motions between a ship body and water face is an important load in ensuring safety of the ship. A flat plate approximation developed by Wagner is used as a two-dimensional slamming theory, but it has a drawback in handling edges of a flat plate. Therefore, an attempt was made to expand the two-dimensional Wagner`s theory to three dimensions. This paper first shows a method to calculate water face slamming of an arbitrary axisymmetric body by using circular plate approximation. The paper then proposes a method to calculate slamming pressure distribution and slamming force for the case when shape of the water contacting surface may be approximated by an elliptic shape. Expansion to the three dimensions made clear to some extent the characteristics of the three-dimensional slamming. In the case of two dimensions or a circular column for example, the water contacting area increases rapidly in the initial stage generating large slamming force. However, in the case of three dimensions, since the water contacting area expands longitudinally and laterally, the slamming force tends to increase gradually. Maximum slamming pressure was found proportional to square of moving velocity in a water contacting boundary in the case of three dimensions, and similar to stagnation pressure on a gliding plate. 12 refs., 17 figs., 1 tab.

  7. Surface temperature measurement using infrared radiometer. 1st Report. ; Radiosity coefficient and radiation temperature. Sekigaisen eizo sochi wo riyoshita jitsuyoteki ondo keisoku ni kansuru kenkyu. 1. ; Shado keisu to hosha ondo no kankei

    Energy Technology Data Exchange (ETDEWEB)

    Okamoto, Y; Inagaki, T; Sekiya, M [Ibaraki University, Ibaraki (Japan). Faculty of Engineering

    1993-12-25

    As a part of the studies on practical surface temperature measurement by infrared radiometer, some basic characteristics of an infrared radiometer were studied by using three kinds of sensors with different detectable wave lengths. Specimens allowable for gray body approximation such as mortar, graphite and carbon fiber composite material were tested at a practical ambient temperature of 293 K. As a result, the difference between a radiation temperature in consideration of reflection and that derived from an emissivity increased with a decrease in emissivity, and the deviation of an emissivity derived from a radiosity coefficient increased at 20 K or less in difference between a specimen surface temperature and ambient one. Each radiosity coefficient measured by each sensor also fairly agreed with each other. The deviation of a radiosity coefficient was relatively small indicating a good agreement between theoretical and experimental data, while the difference between emissivity and radiosity coefficient deviations decreased with an increase in specimen surface temperature. 3 refs., 10 figs., 1 tab.

  8. Surface temperature measurement using infrared radiometer. 2nd Report. Applicability of pseudo gray body approximation. Sekitaisen eizo sochi wo riyoshita jitsuyoteki ondo keisoku ni kansuru kenkyu. 2. Giji Haiiro kinji no tekiyosei

    Energy Technology Data Exchange (ETDEWEB)

    Inagaki, T; Sekiya, M; Ishibashi, H; Okamoto, Y [Ibaraki University, Ibaraki (Japan). Faculty of Engineering; Kurokawa, K [NEC Corp., Tokyo (Japan)

    1994-06-25

    Establishment of a simple and reasonable technique and its application to the metallic surface in addition to the nonmetallic surface in the room-temperature measurement using infrared picture equipment have been studied. It was found, as published in the previous paper, in the investigation of radiation temperature, radiosity coefficient, their wave-length dependence and the dispersiveness of these parameters about the surfaces of various kinds of material that the assumption of gray body approximation does not hold in the surfaces of metal and part of nonmetal. In the present work, applicability of pseudo-gray body approximation to the metal surface in a system surrounded by black body surfaces was studied in consideration of directivity of emissivity and reflectance while, in actual, a measuring angle of 15 degrees giving a small directivity effect was used based on experimental results. As in the previous paper, three kinds of sensors different in the detectable wave-length range were used to evaluate the radiation temperature, emissivity, radiosity coefficient, and their dispersiveness. The experimental results proved the applicability of pseudo-gray body approximation. 3 refs., 18 figs., 2 tabs.

  9. Insulation diagnosis of rotating machines for elevators by an expert system based on fuzzy inference. Fuzzy suiron wo donyushita expert system ni yoru shokokiyo kaitenki no zetsuen shindan

    Energy Technology Data Exchange (ETDEWEB)

    Kaneko, K.; Oshima, H. (Tokai Univ., Tokyo (Japan)); Yamada, N.; Iijima, T. (Mitsubishi Electric Building Techno-Service Co. Ltd., Tokyo (Japan))

    1992-11-20

    Using the data measured with the insulation deterioration diagnostic system for rotating machines for elevators, which is newly developed utilizing the past experience, an expert system which enables insulation deterioration diagnosis even by field maintenance engineers to some extent. In this system, the knowledge and experience of specialists are loaded in a personal computer as the rule for insulation deterioration diagnosis to perform insulation deterioration diagnosis by fuzzy inference and 'hypothesis-verification' type backward reasoning inference. The structured expert system is outlined. The result of insulation diagnosis by this system s compared with that made by specialists to evaluate the effectiveness of the diagnosed result of this system, and shows 84% agreement with the results obtained by specialists. It is, therefore, considered to be a highly practical expert system. 10 refs., 7 figs., 1 tab.

  10. Proposal of new seismic assessment and retrofit technology for existing buildings; Hyogoken nanbu jishin higai wo kyokun to shita kison kozobutsu no taishin shindan system

    Energy Technology Data Exchange (ETDEWEB)

    Yoshioka, K.; Takahashi, Y.; Seki, M.; Tanida, M.; Akiyama, T.; Hashimoto, Y. [Obayashi Corp., Tokyo (Japan)

    1995-08-10

    A devastating earthquake measuring 7.2 on the JMA (Japan Meteorological Agency) magnitude hit the southern Hyogo Prefecture on January 17, 1995. This earthquake, the worst in Japan since the Great Kanto Earthquake in 1923, brought great disaster and destruction to the Hanshin area and Awajishima Island. Most of the damage to concrete and steel structures occurred in buildings designed according to former building codes. Fewer collapses occurred in buildings designed under current building code that have more severe seismic requirements. Existing buildings should be assessed by their seismic potentiality, and retrofitted to escape damage in severe earthquakes such as the Great Hanshin Earthquake. New technology for assessing and retrofitting existing buildings was developed to improve resisting performance in response to severe earthquakes. Earthquake Load or motion exceeding current requirements can be supplied to assess and retrofit existing buildings if a client wants their buildings to exhibit much stronger seismic resistance. The retrofit technologies, such as a base isolation system for whole building, vibration control bracing system with steel damper, and base isolation floor system for computer equipments, can be applied to existing buildings. 11 refs., 9 figs., 8 tabs.

  11. Report on the fiscal 1996 research cooperation promotion project, `the research cooperation diagnosis survey`; 1996 nendo kenkyu kyoryoku jigyo `kenkyu kyoryoku shindan chosa` hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    A diagnosis survey was conducted for Japan to cooperate in researching subjects on technical development in developing countries. In fiscal 1996, surveys were made on the following: (1) establishment of the industrial base (Vietnam), (2) preservation of biological diversification and the continuous utilization (Brazil), (3) fostering of the industry of automobile parts (Thailand), (4) finding out of items on environment related fields (India), (5) environmental response type system for effective use of water resource (the Philippines), (6) small size geothermal exploration in remote islands (Indonesia). (1) is research cooperation for welding technology, powder metallurgy technology, hypoid gear manufacturing technology, and iron making technology by the direct reduction method. In (2), research/development are conducted in cooperation with research institutes in Brazil on survey/identification/utilization of bioactive substances from biological resources in Brazil. In (4), an examination was made of the seeds for research cooperation in technical fields such as environment and energy. Having a strong relation with the industrial circle, SCIR is carrying out researches on aerospace, petrochemical, biology, electronics, medicines/drug, etc., which indicated fulfillment of intellectual infrastructure in India. 52 figs.

  12. Development of the anomaly diagnosis system for transformers using trace constituents in oil; Yuchu biryo seibun ni yoru hen`atsuki ijo shindan hoho no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Ono, H.; Ono, S. [Chugoku Electric Power Co. Inc., Hiroshima (Japan)

    1997-03-21

    In order to complement an anomaly diagnosis system by analysis of gases in oil for transformers, the analysis/diagnosis method of trace constituents in oil was developed. Liquid-liquid solvent extraction using methanol aqueous solution as extract, and high-speed liquid chromatography were adopted to analyze decomposed products dissolved into oil by over heating as trace constituents. The relation between over heat temperature and the amount of decomposed products by over heating was studied by simulation experiment of over heat anomaly. The detectable duration of anomaly after its generation was also studied by examining the adsorption phenomenon of the thermal decomposed products onto insulating materials. As a result, the criterion of the analysis/diagnosis method was prepared by using 5-hydroxymethylfurfural as index constituent of over heating anomaly. Although furfural was also effective as index constituent, it was excluded from the index constituent because furfural is formed by deterioration of transformers even during normal operation. 2 refs., 19 figs., 7 tabs.

  13. Diagnosis by acetone for deterioration of breathing transformers containing an adsorbent in the insulating oil; Acetone ni yoru kyuchakuzai iri kaihogata hen`atsuki no keinen rekkado shindan

    Energy Technology Data Exchange (ETDEWEB)

    Awata, M.; Mizuno, K.; Ueda, T. [Chubu Electric Power Co. Ltd., Nagoya (Japan); Ota, N.; Ishii, T.; Tsukioka, H.

    1997-04-20

    The high-precision diagnosis for deterioration of a breathing transformer containing an adsorbent was investigated. An adsorbent (activated alumina) may be contained in oil to eliminate the deterioration product in insulating oil or the moisture. In this case, the deterioration component furfural in insulating paper is adsorbed. The concentration in furfural oil cannot be thus used for deterioration diagnosis. Acetone and furan with good relation between the adsorption characteristics for activated alumina and the insulating paper deterioration in an accelerated deterioration test can be effectively used as a new deterioration index component of insulating paper. The disassembly survey showed that acetone is valid as the index component of deterioration diagnosis. Furan is not detected in a breathing transformer, but effective in diaphragm-type and nitrogen-sealed transformers. The adsorption of acetone by activated alumina requires no correction for the change in oil temperature at about 10{degree}C. The solubility of acetone for insulating oil is 60 times at 20{degree}C as high as CO2, and the discharge rate from a breather is little (1/25). Therefore, acetone is much more excellent than CO2 as the precision of a deterioration index. 21 refs., 15 figs., 4 tabs.

  14. Report on the fiscal 1995 research cooperation promotion project, `the research cooperation diagnosis survey`; 1995 nendo kenkyu kyoryoku suishin jigyo `kenkyu kyoryoku shindan chosa` hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    A diagnosis survey was conducted for Japan to cooperate in researching subjects on technical development in developing countries. In fiscal 1995, surveys were made on the following: (1) recycling technology of biomass industrial waste in the tropical region, (2) small size geothermal exploration in remote islands, (3) waste water recycling system using activated carbon, etc., (4) upgrading of proofreading technology of measuring standards, (5) technology to simply set up conditions for forming engineering plastics, (6) assessment of safety of chemical substances. In (1), energy and useful matters are recovered from oil palm of Indonesia by thermal decomposition technology. In (2), a system is constructed which can effectively explore geothermal energy in remote islands in the east Indonesia. As to (3), a survey is conducted in the Philippines. (4) contributes to upgrading of length measuring standards in Thailand. (5) attempts to improve technology of forming engineering plastics. In (6), research cooperation is made for preventing environmental pollution and health damage by chemical substances from happening in Thailand and for technology for assessing safety of chemical substances which contributes to the proper use of the hazardous material law in Thailand. 28 figs.

  15. Development of acoustic partial discharge detection device; Bubun hoden kenshutsusochi wo riyo shita onkyo niyoru hendensetsubi no zetsuen rekka shindan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Suenaga, Kiyoka [Kawasaki Steel Corp., Tokyo (Japan)

    1999-06-15

    This paper introduces an acoustic partial discharge detection device, consisting of a microphone, amplifier circuit for analog signals, A/D (Digital Signal Processor). This device has the following unique characteristics: (1) Judging whether or not there is partial discharge by analyzing supersonic signals. (2) High sensitivity for detecting discharge ; 100 pC from a distance of 1.2 m. (3)Locating the position of discharge occurrence by using a sharpe directional parabola microphone and laser beam pointer. The detector was used in the steel works to detect partial discharge on high-voltage electrical apparatus, where faults due to partial discharge were found in the potential transformer and current transformer. The effectiveness of the device was thus verified. (author)

  16. FY1995 fundamental study of imaging simulator for diagnostics and therapeutics using light; 1995 nendo hikari wo riyosuru shindan chiryoyo gazo simulator no kiso kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Medical application of lasers is rapidly expanding in accordance with the development of laser technology. However, it is difficult to predict how light propagates and is absorbed by living bodies because of strong scattering of light by biological tissues. Therefore, the determination of light dose has been based on experience. This fundamental study aims to develop a imaging simulator which can predict propagation of light and its effectiveness in medical diagnostics and therapeutics. Teoretical models of light propagation in biological tissues have been constructed, and experiments have been conducted to validate the theoretical calculation. In the theoretical calculation, a three-dimensional model which simulates a human head with five layers of different tissue types. Numerical calculation has been done by using the finite element method to simulate the propagation of ultrashort pulse light, and it is shown by a computer graphics technique for the first time in the world. In the experiment, a solid phantom which anatomically and optically simulates a human head based on MRI images has been fabricated by using the optical prototyping technology for the first time in the world again. Also, we have compared the experimental results of the transmitted light through the solid phantoms with the theoretical results and have succeeded in reconstructing the tomographic images of optical properties. (NEDO)

  17. FY2000 report of the research results of medical/engineering cooperative research project, basic research on systems for minimally invasive diagnostic/treatment of circulatory system diseases, including prognostic diagnosis; 2000 nendo igaku kogaku renkeigata kenkyu jigyo, junkankikei shikkan ni taisuru yogo shindan wo fukumu teishinshu shindan chiryo system ni kansuru kiso kenkyu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    The basic researches on minimally invasive diagnostic/treatment systems are conducted for circulatory system diseases, and the FY 2000 results are reported. The program for developing the heart surgery supporting manipulator includes development of the manipulator of 7 degree of freedom and fail-safe mechanisms to be incorporated in the patient-side system, and research and development of the heart motion compensation type robot system. The program for developing the diagnosis/treatment system aided by intravascular optical analysis includes development of intravascular endoscopy by the aid of LED emitting blue color of high brightness, and automatic analyzer for the in vivo vascular endothelial cell functions. The program for the minimally invasive diagnostic system includes development of superimposing system for integrating the images by the NOGA system and cine-coronary angiography. The other R and D items include artificial vascular systems to be put in the blood vessels, adhesives for a living body, suture instruments for fine blood vessels, heart surgery supporting system, based on the infrared spectroscopy, endoscopic system for the cranical bones, arterialization method, and gene-aided treatment. (NEDO)

  18. Pseudo-random data acquisition geometry in 3D seismic survey; Sanjigen jishin tansa ni okeru giji random data shutoku reiauto ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Minegishi, M; Tsuburaya, Y [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1996-10-01

    Influence of pseudo-random geometry on the imaging for 3D seismic exploration data acquisition has been investigate using a simple model by comparing with the regular geometry. When constituting wave front by the interference of elemental waves, pseudo-random geometry data did not always provide good results. In the case of a point diffractor, the imaging operation, where the constituted wave front was returned to the point diffractor by the interference of elemental waves for the spatial alias records, did not always give clear images. In the case of multi point diffractor, good images were obtained with less noise generation in spite of alias records. There are a lot of diffractors in the actual geological structures, which corresponds to the case of multi point diffractors. Finally, better images could be obtained by inputting records acquired using the pseudo-random geometry rather than by inputting spatial alias records acquired using the regular geometry. 7 refs., 6 figs.

  19. Three-dimensional seismic survey planning based on the newest data acquisition design technique; Saishin no data shutoku design ni motozuku sanjigen jishin tansa keikaku

    Energy Technology Data Exchange (ETDEWEB)

    Minehara, M; Nakagami, K; Tanaka, H [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1996-10-01

    Theory of parameter setting for data acquisition is arranged, mainly as to the seismic generating and receiving geometry. This paper also introduces an example of survey planning for three-dimensional land seismic exploration in progress. For the design of data acquisition, fundamental parameters are firstly determined on the basis of the characteristics of reflection records at a given district, and then, the layout of survey is determined. In this study, information through modeling based on the existing interpretation of geologic structures is also utilized, to reflect them for survey specifications. Land three-dimensional seismic survey was designed. Ground surface of the surveyed area consists of rice fields and hilly regions. The target was a nose-shaped structure in the depth about 2,500 m underground. A survey area of 4km{times}5km was set. Records in the shallow layers could not obtained when near offset was not ensured. Quality control of this distribution was important for grasping the shallow structure required. In this survey, the seismic generating point could be ensured more certainly than initially expected, which resulted in the sufficient security of near offset. 2 refs., 2 figs.

  20. Fiscal 1999 leading research report. Research on 3-D cell tissue module technology; 1999 nendo sanjigen saibo soshiki module kogaku chosa kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For forming cell tissues alternative to bio-tissues, this research targets the technology for forming bio-tissue modules by cultivating 3-D cell tissues from various kinds of cells. In fiscal 1999, research was made on various issues of element technologies necessary for forming module structure of bio-tissues, and study was also made on the application of 3-D cell tissue module engineering to industrial fields. Survey was made on element technologies and solutions supporting such engineering, and in addition, on progressive conditions of cell cultivation techniques, and concrete techniques for expressing cell functions. Research was made on a cell behavior under physicochemical stimulus environment to study the optimum environment for cell multiplication and function expression. Further research was made on state analysis of cells, in particular, fast precise measurement techniques of activation or malignant of cells and secretion of toxic substances by physical/optical analytical evaluation techniques such as photo-CT and spectroscopic analysis, and biochemical analysis techniques using bio-sensors. Study was also made on successful development and application cases of practical bio-artificial organs in western countries. (NEDO)

  1. Three component particle velocimetry using laser sheets for cycle-resolved, in-cylinder measurements; Laser sheet ho ni yoru cylinder nai nagare no sanjigen sokutei

    Energy Technology Data Exchange (ETDEWEB)

    Ishii, K.; Urata, Y.; Yoshida, K.; Ono, T. [Honda Motor Co. Ltd., Tokyo (Japan)

    1996-01-25

    Analysis of the cycle-by-cycle variation of combustion in an internal combustion engine can be aided by the cycle-resolved measurement of the in-cylinder gas velocity. This paper describes the principle and operation of, and results obtained from, a particle coded-pulse velocimeter (PCPV) which measured the three components of velocity within normal planes to the axis of cylinder. The PCPV was applied to a 1.5 litre lean-burn engine in order to record the flow pattern. The intake air was seeded with light microcapsules of approximately 50{mu}m diameter which scattered light from a system of up to two sets of three plane laser sheets, distinguished by colour and thickness and pulsed by acousto-optic modulators, illuminating planes in the bore of the engine. The magnitudes of the axial and cross bore components of the velocity vector were found from the measured lengths and the duration of the particle tracks. The results from the PCPV measurements are time-resolved and instantaneously three-dimensional and thus the PCPV is capable of identifying the transition from a disordered flow, such as the intake process, to well-ordered flows such as occur during a compression process. The derived swirl and tumble ratios were relatively in good agreement with those measured by an impulse swirl meter. 6 refs., 8 figs., 1 tabs.

  2. S/N improvement method for 3D seismic data; Sanjigen jishin tansa data no S/N hi kaizenho ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Minegishi, M; Sato, M [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-10-22

    Discussions were given on a method to suppress coherent noise in data derived from a non-uniform vibration transmitting-receiving point layout in three-dimensional seismic exploration. The discussions attempted suppression of coherent noise by utilizing a prediction filter for the frequency-space zone. The prediction filter for the frequency-space zone is a filter which handles coherent waveforms found in the record as a signal, and attenuates random noise. Methods to remove coherent noise may include paralleling of signals, making the tracing order random, use of an FX prediction filter, restoration of the tracing order, and restoration of the signal positions. As a result of the discussion using a simple model, it was made clear that coherent noise distributed spatially can be suppressed and signals can be extracted by applying the frequency-space zone filter. In addition, the signals extracted by this operation were found to maintain well the original waveforms. 7 refs., 9 figs.

  3. MT survey in the Minaminoshiro oil field; Minaminoshiro chiiki ni okeru MT ho ni yoru sekiyu tanko (sanjigen MT ho chosa no kento). 1

    Energy Technology Data Exchange (ETDEWEB)

    Matsuo, K; Minegishi, M [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-10-22

    Preliminary experiment, investigation, and study are conducted prior to an experimental 3-D MT (magnetotelluric) survey planned to be carried out in the Minaminoshiro district, Akita Prefecture. In the preliminary investigation, MT measurements were performed at nine locations. It was anticipated that national highways, waste treatment plants, high-voltage power lines, and railways in presence in the district would act as noise sources. Although the impact of such noise was detected in the single site treatment result, yet it was found that it would be mostly eliminated by use of the remote reference treatment. It was learned that the resistivity structure in this district was quite low in contrast or 1 ohm/m against 30 ohm/m, but the result of 3-D model calculation indicated that a sufficient analysis would be possible even in such a low contrast case. Furthermore, as the result of the study of the density of observation stations in the magnetic field, it was found that changes in the response of magnetic field to the resistivity structure would be approximately 2% at the maximum and that the ill effect on the result of measurement would be of the negligible magnitude even when a single magnetic field observation station is deployed against plural electric field observation stations. 6 refs., 7 figs.

  4. 3D seismic experiment in the Minaminoshiro area, Akita. Data processing; Akitaken Minaminoshiro chiiki ni okeru sanjigen jishin tansa jikken. Data shori

    Energy Technology Data Exchange (ETDEWEB)

    Tanaka, H; Minegishi, M [Japan National Oil Corp., Tokyo (Japan). Technology Research Center; Nakagami, K [Japan Petroleum Exploration Co. Ltd., Tokyo (Japan)

    1997-10-22

    A 3D seismic experiment was carried out in the Minaminoshiro area in Akita Prefecture, an area difficult of performing seismic exploration. This paper reports progresses during data processing and future problems. The data processing has executed static correction of 3D refraction, 3D DMO correction, and an F-X prediction filter processing on the data in time domain in the 3D seismic exploration as acquired in a spread of 4 km times 5 km in the subject area. The result of the data processing verified existence of a folding structure and the Noshiro thrust fault groups in the east to west direction, and locations of the Sakagawa fault associated therewith. Seen particularly noticeably was a structure having a slope falling north-ward at 15 to 35 degrees in shallow and deep portions on the east side of the Sakagawa fault in the south to north direction. In addition, the Dogiri fault was identified, which has been though to exist in a direction crossing perpendicularly the Noshiro thrust fault groups. It is scheduled that spatial velocity will be analyzed, and data processing will be conducted for deep regions. 7 figs.

  5. Grid generation method to calculate the flow field in a three-dimensional cascade of blades. Sanjigen yokuretsu nagare keisan no tame no koshi keisei

    Energy Technology Data Exchange (ETDEWEB)

    Inoue, K [National Aerospace Laboratory, Tokyo (Japan)

    1992-05-01

    For the purpose of developing a fan for an engine with ultra-high by-pass ratio, the design code of three-dimensional cascade of blades based on the Navier-Stokes equation has already been developed. This paper describes a method created by calculation grids which are part of this design code. This method is to generate boundary fitted grids to calculate the flow field across a cascade of blades placed radially in the axially symmetric space between hub and casing. In this method, one-period domain of the cascade of blades is mapped on a box in computational space by a series of combined streching transformation and conformal mapping. The grid in physical space is then obtained by successive inverse conformal mapping on the grid points in computational space. The grid obtained in this method is H-type and has a periodicity which includes the inclination of grid lines at the periodic boundary. As an example of the grid generated by this method, grids for primary and secondary models of the fan with ultra-high by-pass ratio are shown. 6 refs., 12 figs.

  6. Grid generation method to calculate the flow field in a three-dimensional cascade of blades; Sanjigen yokuretsu nagare keisan no tame no koshi keisei

    Energy Technology Data Exchange (ETDEWEB)

    Inoue, K [National Aerospace Laboratory, Tokyo (Japan)

    1992-05-01

    For the purpose of developing a fan for an engine with ultra-high by-pass ratio, the design code of three-dimensional cascade of blades based on the Navier-Stokes equation has already been developed. This paper describes a method created by calculation grids which are part of this design code. This method is to generate boundary fitted grids to calculate the flow field across a cascade of blades placed radially in the axially symmetric space between hub and casing. In this method, one-period domain of the cascade of blades is mapped on a box in computational space by a series of combined streching transformation and conformal mapping. The grid in physical space is then obtained by successive inverse conformal mapping on the grid points in computational space. The grid obtained in this method is H-type and has a periodicity which includes the inclination of grid lines at the periodic boundary. As an example of the grid generated by this method, grids for primary and secondary models of the fan with ultra-high by-pass ratio are shown. 6 refs., 12 figs.

  7. Report on 1981 research result on the R and D of three-dimensional circuit element; 1981 nendo sanjigen kairo soshi no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-03-01

    For the purpose of contributing to the efficient R and D of three-dimensional circuit element technologies (laminated high density integrated element technology, laminated high-speed multi-functional integrated element technology, and laminated large capacity multi-functional integrated element technology), conducted were the survey of domestic and overseas technological trend, investigation of progress status of R and D, and extraction and analysis of problems concerning R and D. In the technological trend survey, the technologies that could sprout in the future were investigated and examined. In addition, examined as much as possible at the present time were the appearance as a device imaginable at the time of the development of the three-dimensional circuit element technology, the point at issue, essential technologies for the development of the element, etc., with the results reported. A report was made on the technology of obtaining a silicon crystal layer on an insulating object. The status quo of a technology for forming an insulated film suitable for a silicon multi-layer structure and of a technology for forming an electrode material was explained, as was a layer forming technology for an insulating object and a metallic material concerning a compound semiconductor layer technology. With the present status summarized on an image sensor in two dimensions, the transmission electron microscope method was introduced. Last of all, investigation results were compiled on the state of progress of each research for the three-dimensional circuit element technology. (NEDO)

  8. 3-D volume rendering visualization for calculated distributions of diesel spray; Diesel funmu kyodo suchi keisan kekka no sanjigen volume rendering hyoji

    Energy Technology Data Exchange (ETDEWEB)

    Yoshizaki, T; Imanishi, H; Nishida, K; Yamashita, H; Hiroyasu, H; Kaneda, K [Hiroshima University, Hiroshima (Japan)

    1997-10-01

    Three dimensional visualization technique based on volume rendering method has been developed in order to translate calculated results of diesel combustion simulation into realistically spray and flame images. This paper presents an overview of diesel combustion model which has been developed at Hiroshima University, a description of the three dimensional visualization technique, and some examples of spray and flame image generated by this visualization technique. 8 refs., 8 figs., 1 tab.

  9. Improved design of three-dimensional lens for low concentrator PV modules; Teishukogata taiyo denchiyo sanjigen lens no koseinoka ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Goma, S; Yoshioka, K; Saito, T [Tokyo Univ. of Agriculture and Technology, Tokyo (Japan)

    1997-11-25

    Attention is paid to reduction in area required for solar cells by solar concentration as a means of solving cost limits of solar cells and unstable supply of Si materials. Low concentration solar cells are effective from the aspects of utilization of scattered light and unnecessary ray tracing. The optical concentration ratio was calculated of three-dimensional lens having design values of various north/south and east/west direction allowable incidence half angles. The three-dimensional lens are designed by cutting a rectangular parallelepiped by the two-dimensional composite elliptical plane designed by various allowable incidence half angles from two directions of north/south and east/west. Using Perez`s sky solar radiation models and meteorological data HASP, calculated were the annual accumulated global radiation ratio on an inclined surface and the optical efficiency. Calculated were the solar cell area ratio and solar concentration area ratio of the concentration type to obtain solar radiation the same as that of the planar type. From the optimization calculation, it was found that lens are optimal which have design values of north/south and east/west direction allowable incidence half angles of 30-70deg. The solar cell area ratio is 57% and the solar concentration area ratio is 1.2 times. It was found that by making the module area 1.2 times, more than 40% of the solar cells used can be saved. 5 refs., 8 figs.

  10. Three-dimensional mise-a-la-masse modeling using horizontal well; Suihei kosei wo mochiita ryuden den`iho no sanjigen modeling

    Energy Technology Data Exchange (ETDEWEB)

    Mizunaga, H; Ushijima, K; Hashimoto, K; Masuda, K [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    1996-10-01

    The 3-D model program was developed to apply a mise-a-la-masse method to linear current sources with optional shapes. Mise-a-la-masse method is a bipolar mapping survey method using current sources installed in wells, and recently has been widely used for direct exploration of geothermal reservoirs. This method is also used for monitoring underground fluid as electrode arrangement of fluid flow tomography for surveying underground fluid (geothermal fluid, underground water, petroleum). In the geothermal reservoir exploration, the casing pipes of wells are used as linear current sources, and measured data are processed as those based on vertical current source. In the largely inclined well, the inclination of current sources should be considered. The 3-D modeling program was developed by difference calculus using the theoretical potential equation and apparent resistivity based on linear current sources with optional 3-D shapes. The numerical model experiment result clarified that the previous theoretical equation for vertical wells is inapplicable to inclined linear current sources because of clear asymmetric apparent resistivity distribution. 6 refs., 6 figs.

  11. Three dimensional numerical modeling for ground penetrating radar using finite difference time domain (FDTD) method; Jikan ryoiki yugen sabunho ni yoru chika radar no sanjigen suchi modeling

    Energy Technology Data Exchange (ETDEWEB)

    Sanada, Y; Ashida, Y; Sassa, K [Kyoto University, Kyoto (Japan)

    1996-10-01

    3-D numerical modeling by FDTD method was studied for ground penetrating radar. Radar radiates electromagnetic wave, and determines the existence and distance of objects by reflection wave. Ground penetrating radar uses the above functions for underground surveys, however, its resolution and velocity analysis accuracy are problems. In particular, propagation characteristics of electromagnetic wave in media such as heterogeneous and anisotropic soil and rock are essential. The behavior of electromagnetic wave in the ground could be precisely reproduced by 3-D numerical modeling using FDTD method. FDTD method makes precise analysis in time domain and electric and magnetic fields possible by sequentially calculating the difference equation of Maxwell`s equation. Because of the high calculation efficiency of FDTD method, more precise complicated analysis can be expected by using the latest advanced computers. The numerical model and calculation example are illustrated for surface type electromagnetic pulse ground penetrating radar assuming the survey of steel pipes of 1m deep. 4 refs., 3 figs., 1 tab.

  12. Three dimensional transient electromagnetic model study for fracture prediction from tunnel face; Sanjigen model keisan ni yoru TEM ho no tunnel zenpo tansa eno tekiyosei no kento

    Energy Technology Data Exchange (ETDEWEB)

    Wada, K; Tsutsui, T; Saito, A [Mitsui Mineral Development Engineering Co. Ltd., Tokyo (Japan); Hara, T [Toda Corp., Tokyo, (Japan); Zhdanov, M [University of Utah, UT (United States)

    1996-10-01

    In order to apply TEM model to fracture prediction at tunnel face, 3-D TEM model computation by FEM was conducted by installing a transmission loop on a tunnel face. MT field responses diffusing into the 3-D model were computed by time-domain difference calculus, and analytical precision was improved by introducing a staggered grid method. In the case where a low resistive zone exists before a tunnel face, time variance in diffused eddy current and induction current in the low resistive zone could be obtained. The difference in tunnel-axial transient curve (transient phenomenon curve in magnetic field) between uniform medium and low resistive zone models was based on the absorption process of diffused eddy current into the low resistive zone, and the expanding process of it toward the outside. Change in background condition could be predicted from the background and the ratio of transient curves every measurement. The detection limit of the low resistive zone was dependent on resistivity contrast, distance and geometry. Fluctuation in measurement due to noises and S/N ratio were also essential. 3 refs., 10 figs.

  13. Three dimensional numerical modeling for investigation of fracture zone filled with water by borehole radar; Borehole radar ni yoru gansui hasaitai kenshutsu no sanjigen suchi modeling

    Energy Technology Data Exchange (ETDEWEB)

    Sanada, Y; Watanabe, T; Ashida, Y [Kyoto University, Kyoto (Japan); Hasegawa, K; Yabuuchi, S [Power Reactor and Nuclear Fuel Development Corp., Tokyo (Japan)

    1997-05-27

    Water bearing fracture zones existing in rock mass largely influence the underground water flow and dynamic property of rock mass. The detailed survey of the location and size of water bearing fracture zones is an important task in the fields such as civil engineering, environment and disaster prevention. Electromagnetic waves of high frequency zones can be grasped as a wave phenomenon, and the record obtained in the actual measurement is wave forms of time series. In the exploration using borehole radar, this water bearing fracture zone becomes the reflection surface, and also becomes a factor of damping in the transmitted wave. By examining changes which these give to the observed wave forms, therefore, water bearing fracture zones can be detected. This study made three dimensional numerical modeling using the time domain finite difference method, and obtained the same output as the observed wave form obtained using borehole radar. By using this program and changing each of the parameters such as frequency and resistivity in the homogeneous medium, changes of the wave forms were observed. Further, examples were shown of modeling of detection of water bearing fracture zones. 5 refs., 16 figs., 1 tab.

  14. Indirect boundary element method for three dimensional problems. Analytical solution for contribution to wave field by triangular element; Sanjigen kansetsu kyokai yosoho. Sankakukei yoso no kiyo no kaisekikai

    Energy Technology Data Exchange (ETDEWEB)

    Yokoi, T [Building Research Institute, Tokyo (Japan); Sanchez-Sesma, F [Universidad National Autonoma de Mexico, (Mexico). Institute de Ingenieria

    1997-05-27

    Formulation is introduced for discretizing a boundary integral equation into an indirect boundary element method for the solution of 3-dimensional topographic problems. Yokoi and Takenaka propose an analytical solution-capable reference solution (solution for the half space elastic body with flat free surface) to problems of topographic response to seismic motion in a 2-dimensional in-plane field. That is to say, they propose a boundary integral equation capable of effectively suppressing the non-physical waves that emerge in the result of computation in the wake of the truncation of the discretized ground surface making use of the wave field in a semi-infinite elastic body with flat free surface. They apply the proposed boundary integral equation discretized into the indirect boundary element method to solve some examples, and succeed in proving its validity. In this report, the equation is expanded to deal with 3-dimensional topographic problems. A problem of a P-wave vertically landing on a flat and free surface is solved by the conventional boundary integral equation and the proposed boundary integral equation, and the solutions are compared with each other. It is found that the new method, different from the conventional one, can delete non-physical waves from the analytical result. 4 figs.

  15. Simulation study using 3-D wavefield modeling for oil and gas exploration; Sanjigen hadoba modeling wo mochiita sekiyu tanko no simulation study

    Energy Technology Data Exchange (ETDEWEB)

    Sato, T; Matsuoka, T [Japan Petroleum Exploration Corp., Tokyo (Japan); Saeki, T [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-05-27

    As the surroundings of objects of oil exploration grow more complicated, seismic survey methods have turned 3-dimensional and, in this report, several models are examined using the 3-dimensional simulation technology. The result obtained by the conventional wave tracking method is different from actual wavefields, and is unrealistic. The difference method among the fullwave modelling methods demands an exorbitantly long computation time and high cost. A pseudospectral method has been developed which is superior to the difference method, and has been put to practical use thanks to the advent of parallel computers. It is found that a 3-dimensional survey is mandatory in describing faults. After examining the SEG/EAGE Salt model, it is learned that the salt is well-developed and that 3-dimensional depth migration is required for sub-salt exploration. It is also found through simulation of the EAGE/S Overthrust model, which is an elastic model, that no quality records are available on thrust zones in complicated terrains. The records are poor in quality since the actually measured wavefield is regarded as an acoustic wavefield when it is an elastic wavefield. 1 refs., 18 figs., 2 tabs.

  16. Fundamental study of interpretation technique for 3-D magnetotelluric data using neural networks; Neural network wo mochiita sanjigen MT ho data kaishaku gijutsu no kisoteki kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, T; Fukuoka, K; Shima, H [Oyo Corp., Tokyo (Japan); Mogi, T [Kyushu University, Fukuoka (Japan). Faculty of Engineering; Spichak, V

    1997-05-27

    The research and development have been conducted to apply neural networks to interpretation technique for 3-D MT data. In this study, a data base of various data was made from the numerical modeling of 3-D fault model, and the data base management system was constructed. In addition, an unsupervised neural network for treating noise and a supervised neural network for estimating fault parameters such as dip, strike and specific resistance were made, and a basic neural network system was constructed. As a result of the application to the various data, basically sufficient performance for estimating the fault parameters was confirmed. Thus, the optimum MT data for this system were selected. In future, it is necessary to investigate the optimum model and the number of models for learning these neural networks. 3 refs., 5 figs., 2 tabs.

  17. Improvement of wells turbine performance by means of 3D guide vanes; Sanjigen annai hane ni yoru wells turbine seino no kaizen

    Energy Technology Data Exchange (ETDEWEB)

    Takao, M.; Kim, T.H. [Saga University, Saga (Japan); Setoguchi, T. [Saga University, Saga (Japan). Faculty of Science and Engineering; Inoue, M. [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    2000-02-25

    Performance of a Wells turbine was improved by equipping 3D guide vanes before and behind a rotor. For further improvement, 3D guide vanes have been proposed in this paper. The performance of the Wells turbine with 2D and 3D guide vanes have been investigated experimentally by model testing under steady flow conditions. Then, the running and starting characteristics in irregular ocean waves have been obtained by a computer simulation. As a result, it is found that both of the running and starting characteristics of the Wells turbine with 3D guide vanes are superior to those of the turbine with 2D guide vanes. (author)

  18. Leading survey and research report for fiscal 1999. Survey and research on 3-dimensional ion beam processing technology; 1999 nendo sanjigen ion kokan gijutsu no chosa kenkyu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Application of ion beam processing to 2-dimensional shapes in the past has been limited to flat shapes or small areas. There is a 3-dimensional plasma-based ion implantation (PBII) technology for which high-density plasma is generated using plural metal ion sources and gas ion sources for the application of pulse voltages. Using this technology, ions are implanted into intricate shapes, large areas, and surfaces of 3-dimensional shapes, and surface reforming is accomplished through thin film formation. It is low in cost and high in productivity, and finds a great demand for use in the fabrication of members of large and complicated engines for automobiles, spacecraft, and aircraft, members of precision machines, and members of electric power facilities and chemical plants where high resistance to abrasion, corrosion, and heat are mandatory. Research and development for its practical application, however, has just started and, before its commercialization, technologies have to be completed involving surface treatment using gas plasma for ion implantation, thin film formation using metal ion plasma, and their hybrid. Similarly important is the technology of generating homogenous plasma. This new technology is expected to enhance economic efficiency, provide means to deal with environmental matters, and improve on energy efficiency. An outline of the proposition for the project is compiled in this report. (NEDO)

  19. FY1995 study on three-dimensional integrated information environment toward human media; 1995 nendo human media e muketa sanjigen togo joho kankyo no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    In the next generation media environment, it is required to remove the boundary between virtual and real environment. The integration of these heterogeneous environments will enhance the applicability and availability of the human media. The aim of this work is to pioneer the new technology of 3-D integrated information environment in which both virtual and real environment are embedded, and to give a guide into the construction of human media. Our results consists of three parts as follows : (1) As a benchmark of the 3-D integrated information environment, the immersive television which has surrounding multi-projection displays was investigated. (2) A new method to synthesize arbitrary 3-D viewpoint images from 2-D real images was developed. On the other hand, a new concept of ray data description was introduced to represent whole visual data of 3-D real space. In the new concept, the whole visual data is treated as a set of ray data. New methods for superimposing and handling ray data were proposed. Potential applicability of the methods were clarified. (3) In order to enhance the reality of operations under the virtual environment, quantitative analysis was performed assuming that the HMD (Head Mounted Display) was used for displaying 3-D space information. (NEDO)

  20. Optimization of the catalytic converter internal flow by using 3D-CFD; Sanjigen nagare kaiseki ni yoru shokubai converter nai nagare no saitekika

    Energy Technology Data Exchange (ETDEWEB)

    Toi, M; Sugiura, S [Toyota Motor Corp., Tokyo (Japan)

    1997-10-01

    By using computational fluid dynamics and statistical quality control method, we investigated the contribution of front and rear catalytic converter cone shape for the pressure loss and the partial flow, also led the optimal terms and the predictional formulations efficiently. According to this, we can investigate the optimal position of the catalytic converter from the planning. 8 figs., 6 tabs.

  1. Study on a new type variable valve lift timing mechanism with a three dimensional cam; Sanjigen cam ni yoru shinkahen valve lift timing kiko ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Ogura, M; Song, C [Nippon Institute of Technology, Saitama (Japan)

    1997-10-01

    The variable valve timing mechanism was invented to get a torque band at wide engine speed, and to reduce a compression job and pumping loss by a miler cycle at partial load. In this paper, the new type variable valve timing mechanism applying a three dimensional cam was proposed. Also, the feature of mechanism and the control system was done obviously. Further, about a miler cycle, a thermodynamics -like consideration was described. 5 refs., 8 figs.

  2. Summary of [alpha]-FLOW, a general purpose three-dimensional fluid analyzing system. Han[prime]yo sanjigen ryutai kaiseki system [alpha]-FLOW no gaiyo

    Energy Technology Data Exchange (ETDEWEB)

    Koike, H [Fuji Research Institute Corporation, Tokyo (Japan)

    1992-08-01

    The [alpha]-FLOW is a three-dimensional fluid analyzing software developed from cooperations among research institutes of private business companies and universities in Japan under the assistance from the Ministry of International Trade and Industry. This paper describes its summary and features. The system is a discrete system utilizing a supercomputer and a work station. The analysis modules incorporated in the system include those for non-compressive fluid analysis, compressive fluid analysis, analysis of non-compressive fluid including free surface, analysis of flows including combustion and chemical reactions, substance migration analysis, and heat transfer analysis. It has a feature that even non-specialists can analyze fluids easily as a result of the development of an expert system to support the numerical analysis. Development of the input data preparing system enables to utilize the work station to process from shape modeling to grid generation, and from inputting analyzing condition data to calculating the flows and outputting the calculation result, all in dialogue modes. An open architecture was adopted. 27 refs., 7 figs., 10 tabs.

  3. Analysis and model-tests on vortex-induced oscillation of bridges; Kyoryo no uzu reishin ni kansuru sanjigen oto kaiseki to fudo jikken

    Energy Technology Data Exchange (ETDEWEB)

    Yamamura, N. [Hitachi Zosen Corp., Osaka (Japan); Ogasawara, M. [Kansai Electric Power Co. Inc., Osaka (Japan); Shiraishi, N. [Maizuru College of Technology, Kyoto (Japan); Nanjo, M.

    1996-07-21

    In order to predict the three-dimensional response to vortex-induced oscillation of bridges, a model was investigated using the aerodynamic force coefficient including vortex-induced and self-excited forces, and the nonlinear response coefficient expressing constancy of response to vortex-induced oscillation. In the analysis, change of frequency in wind by the self-excited force, aerodynamic damping term, effect of the mode, and correlation of the vortex-induced force along member axis were taken into account. The aerodynamic force and nonlinear response coefficients were identified from the homogeneous and turbulent flow results of wind tunnel tests using a two-dimensional spring support rigid body model with varied damping factor. The aerodynamic damping term can be estimated from the nonlinear aerodynamic force coefficient, but it was enough to calculate it from the quasi-stationary coefficient in general bridge profiles. The correlation of the vortex-induced force was obtained from measurements of the vertical variation components of trailing flow under the resonance state, or the pressure distribution of the member surface. When comparing to the wind tunnel test of three-dimensional model of cable-stayed bridge, the response amplitude by the present analysis method was consistent well with the test results rather than by the method in which the amplitude of two-dimensional model was corrected. 10 refs., 4 figs., 3 tabs.

  4. Diagnosis of aging deterioration of oil filled transformers by detection of furfural dissolved in insulating oil. Furfural ni yoru aburairi hen prime atsuki no keinen rekkado shindan no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Harigae, T.; Goto, K.; Ota, N.; Tsukioka, H. (Yuka Industries, Co. Ltd., Tokyo (Japan))

    1992-06-20

    The diagnosis method of aging deterioration was proposed for oil filled transformers based on detection of furfural in insulating oil. Vacuum, oxygen-added and water-added specimens of insulating paper immersed in insulating oil were thermally deteriorated at 120-180 {degree}C for 1-120 days to measure average polymerization degrees of the insulating paper and furfural contents in the oil and paper. As a result, the addition of oxygen or water accelerated forming of furfural, and the average polymerization degree considerably decreased in the early stage of heating. There was also the certain relation between the furfural content and average polymerization degree. In addition, various kinds of subjects were discussed which were required to apply these experimental results to diagnosis of aging deterioration in real oil filled transformers, and rough furfural contents corresponding to aging deterioration degrees of the insulating paper were given. As combined with a CO{sub 2} + CO method, the proposed method was expected to be more reliable. 9 refs., 8 figs., 2 tabs.

  5. FY 2000 Project of developing international standards for supporting new industries. SMIL tag standard of the three-dimensional image data, based on MXL; 2000 nendo shinki sangyo shiengata kokusai hyojun kaihatsu jigyo seika hokokusho. XML wo base to shita rittai eizo data SMIL tag tsuke kikaku no hyojunka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    This project is aimed at proposals of the standards for utilizing three-dimensional images for multimedia presentation on the Internet. Described herein are the FY 2000 results for proposal of SMIL (synchronized multimedia integration language) tag standard of the three-dimensional image data, based on XML which is the next generation standard of HTML, and research and development of the generated editor of tag data for the three-dimensional images, three-dimensional QuickTimeVR player and three-dimensional MPEG player. The FY 2000 efforts are directed to the examination/proposal of the tags for three-dimensional images which are not defined by the present XML and SMIL, based on which the tag editor is developed. The other efforts include survey on the latest situations around the standards and trends of the Web and three-dimensional data; and development of the player and browser of SMIL tags, both for three-dimensional images. The efforts for the international standardization include preparation of the three-dimensional standard drafts for displaying various media data in the three-dimensional world, which are submitted to the W3C members to sound their opinions, and collection of related information. (NEDO)

  6. Leading research report for fiscal 1998. Research and study of 3-dimensional cell structure module engineering; 1998 nendo sendo chosa kenkyu hokokusho. Sanjigen saibo soshiki module kogaku chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the formation of cellular tissues to replace bionic tissues, researches were conducted about technologies of forming bionic tissue modules by culturing various kinds of cells. As for the materials and methods for constructing cellular tissues, researches were conducted about the trends of research and development of 3-dimensional tissue culturing matrices and materials for micromanipulation. As for the development of technologies for the functionalization of 3-dimensionally structured cells, research and study were conducted about the technology of 3-dimensional cell structure organization through application of physical stimulation, the biochemical technology of differentiation inducing, and the differentiation inducing technology for hetero tissue culturing. As for the development of technologies for evaluation using 3-dimensionally structured cells, light CT (computer tomography), analysis and evaluation using spectroscopy and the like, feasibility of the biochemical analysis of the cell state using biosensors, technologies for measuring the secretion of carcinogenic and toxic substances, etc., were studied. In addition, the development of organic models to replace test animals, industrial evolution of 3-dimensional tissue module engineering, etc., were investigated. (NEDO)

  7. Research and development of basic technologies for next-generation industry. Evaluation of 1st-phase research and development of 3-dimensional circuit devices; Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Sanjigen kairo soshi daiikki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-03-30

    The aim is to develop basic technologies relating to 3-dimensional circuit devices with an ultrahigh-density accumulation of functions therein for the embodiment of ultra-small high-performance data processing devices or artificial brain-like multiple-function data processing devices. To be developed are laminate-structure devices which have an ultrahigh-density accumulation of logic and memory functions or a complex accumulation of functions including signal and sensor functions. In the 1st phase, importance is attached to the development of a multilayer crystalline structure, which is the most elementary in the development of 3-dimensional circuit devices, and of processing technologies for them. Propositions are made and analyses are conducted relating to the enlargement of exposure region in synchrotron radiation lithography, development of a maskless beam process of a resolution of 0.1{mu}m, development of a focused ion beam device, etc. Recrystallization methods using a laser beam or a linear electron beam are developed for the growth of multilayer crystals, and are proved to be effective. The application feasibility of a flat deposition dry process etc. to laminate processing technologies is demonstrated. Concerning integration technologies, some laminated circuit devices are experimentally fabricated, and their behavior is determined. The goals of the 1st phase are found achieved. (NEDO)

  8. Research and development of basic technologies for the next generation industries, 'three-dimensional circuit elements'. Evaluation on the research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'sanjigen kairo soshi'. Kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-04-01

    Research, development and evaluation were performed with an objective of establishing the basic technology related to three-dimensional circuit elements that integrate functions at ultra-high density. For the basic technology of lamination, the SOI technology suitable for the three-dimensional circuit elements was developed, and it has become possible to manufacture high-quality multi-layered crystalline structure by means of annealing that uses laser and electron beam. In addition, a lateral epitaxial technology for solid phase was developed, and the base to be applied to the three-dimensional circuit elements was established. Furthermore, the technology to put thin film circuits together would be useful for high-density integration in the future. The three-dimensional circuit makes parallel processing in each segment possible, whereas a possibility was shown that the processing can be performed at much higher speed than before. Actually a prototype three-dimensional circuit equipped with functions for parallel processing and judgment processing was fabricated. The image pre-processing which has been impossible on the real time basis in the conventional two-dimensional integrated circuit was realized in a speed as fast as milli-second order. These achievements lead to a belief that the targets for the present research and development have been achieved. (NEDO)

  9. Report on achievements of research and development of an automatic sewing system in fiscal 1988. Three-dimensional flexible sub-system; 1988 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. Sanjigen flexible sub system

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-03-01

    The Automatic Sewing System Technology Research Association was commissioned from the Agency of Industrial Science and Technology on research of a production system by apparel types and systematization of an experiment plant. As the research on systematizing the experiment plant, the association is tackling with the researches on a high-speed laser cutting sub-system, a flexible sewing sub-system, a hi-tech assembling sub-system, and a three-dimensional flexible pressing sub-system. This paper reports the achievement of the research and development on the three-dimensional flexible pressing sub-system. It was intended to move forward development of technologies to put on and take off apparels and transport products, to achieve interlocking with other component technologies, and to structure an efficient pressing and processing system for finish. An experiment plant was built for ladies' blazer coats set as objects of model wears. The plant operation experiments and comprehensive evaluation are scheduled to be performed in fiscal 1990. Therefore, basic design research was carried out on an automatic put-on/take-off device and an auto-hanger system with an objective of application of the experimental plant. Studies on accuracy improvement was executed in the research of setting shapes of flexible dummies. In the research of pressing conditions, application of the 'estimation type information retrieval and control system' was studied. As a result, achievements were obtained as nearly as has been initially intended. (NEDO)

  10. Characteristics of the fluorescent substances in the Yodo River system by three-dimensional excitation emission matrix spectroscopy; Sanjigen reiki/keiko kodoho ni yoru yodogawa suikeichu no keiko busshitsu no tokucho

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Y.; Nakaguchi, Y.; Hiraki, K.; Kudo, M.; Kimura, M.; Nagao, S. [Japan Atomic Energy Research Inst., Tokyo (Japan)

    1998-08-01

    Organic substances in the river water in Yodo River system were analyzed by three-dimensional excitation emission matrix spectroscopy. Fluorescent substances were taken as an index of organic substances. The amount of fluorescent substances varied widely depending on the environment of river basin. It is suggested that the fluorescent substances are composed of organic substances which is not directly originated from biological activity. It is suggested that the fluorescent substances were produced by leaching of river bottom sediment. The fluorescent substances in Yodo River system consists of fulvic acid-like substances and protein. The analysis of fluorescent substances in river water by three-dimensional excitation emission matrix spectroscopy can be useful means for estimation of variation and origin of fluorescent substances. For better understanding of features of fluorescent substances in the surface water into which various kinds of substances enter, it is necessary to determine the exact sampling points based on the consideration of different sources and to make a database of peak positions for identification of fluorescent substances from fluorescence intensity peak. 29 refs., 3 figs., 2 tabs.

  11. Three-dimensional computer simulation at vehicle collision using dynamic model. Application to various collision types; Rikigaku model ni yoru jidosha shototsuji no sanjigen kyodo simulation. Shushu no shototsu keitai eno tekiyo

    Energy Technology Data Exchange (ETDEWEB)

    Abe, M; Morisawa, M [Musashi Institute of Technology, Tokyo (Japan); Sato, T [Keio University, Tokyo (Japan); Kobayashi, K [Molex-Japan Co. Ltd., Tokyo (Japan)

    1997-10-01

    The past study of safety at vehicle collision pays attention to phenomena within the short time from starting collision, and the behavior of rollover is studied separating from that at collision. Most simulations of traffic accident are two-dimensional simulations. Therefore, it is indispensable for vehicle design to the analyze three-dimensional and continuous behavior from crash till stopping. Accordingly, in this study, the three-dimensional behavior of two vehicles at collision was simulated by computer using dynamic models. Then, by comparison of the calculated results with real vehicles` collision test data, it was confirmed that dynamic model of this study was reliable. 10 refs., 6 figs., 3 tabs.

  12. Synthetic focused array of electrical prospecting using pole-pole array potential data; Sanjigen denki tansaho ni okeru nikyokuho den`i data wo mochiita denryu shusoku haichi no goseiho

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, K [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1997-10-22

    Various methods have been put into practice for the conventional two-dimensional pole configuration using a single line in three-dimensional electrical prospecting. Pole configuration effective for the three-dimensional exploration has not been investigated. This paper describes synthetic focused array using four pairs of guarded poles based on pole-pole array potential data in the case of arrangement of measuring points on a grid. Results of the numerical simulation are also described. For the focused array, laterolog of electrical logging is applied to the surface prospecting. Directivity can be given to the current from the main pole by controlling the current from guarded pole. It was found from the simulation that the resistivity anomaly is concentrated directly on the embedded ball for the focused array rather than for the pole-pole array. It was also found that two conductive balls can be clearly separated for the focused array rather than for the dipole-dipole array. Accordingly, it was considered that results approximating the original structures can be obtained by analyzing using the both arrays. 5 refs., 6 figs.

  13. Fundamental study on the interpretation technique for 3-D MT data using neural networks. 2; Neural network wo mochiita sanjigen MT ho data kaishaku gijutsu ni kansuru kisoteki kenkyu. 2

    Energy Technology Data Exchange (ETDEWEB)

    Fukuoka, K; Kobayashi, T [OYO Corp., Tokyo (Japan); Mogi, T [Kyushu University, Fukuoka (Japan). Faculty of Engineering; Spichak, V

    1997-10-22

    Behavior of neural networks relative to noise and the constitution of an optimum network are studied for the construction of a 3-D MT data interpretation system using neural networks. In the study, the relationship is examined between the noise level of educational data and the noise level of the neural network to be constructed. After examination it is found that the neural network is effective in interpreting data whose noise level is the same as that of educational data; it cannot correctly interpret data that it has not met in the educational stage even if such data is free of noise; that the optimum number of neurons in a hidden layer is approximately 40 in a network architecture using the current system; and that the neuron gain function enhances recognition capability when a logistic function is used in the hidden layer and a linear function is used in the output layer. 2 refs., 7 figs., 2 tabs.

  14. Double linearization theory applied to three-dimensional cascades oscillating under supersonic axial flow condition. Choonsoku jikuryu sokudo de sadosuru sanjigen shindo yokuretsu no niju senkei riron ni yoru hiteijo kukiryoku kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Toshimitsu, K; Nanba, M [Kgushu University, Fukuoka (Japan). Faculty of Engineering; Iwai, S [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)

    1993-11-25

    In order to examine the aerodynamic characteristics of a supersonic axial flow turbofan realizing flight of Mach number of 2-5, the double linearization theory was applied to a three dimensional oscillation cascade accompanying a steady load in a supersonic axial flow condition and unsteady pneumatic force and aerodynamic unstability of oscillation were studied. Moreover, the values based on the strip theory and the three-dimensional theory were comparatively evaluated. Fundamental assumptions were such that the order of steady and unsteady perturbation satisfies the holding condition of the double linearization thory in a supersonic-and equi-entropy flow of non-viscous perfect gas. The numerical calculation assumed parabolic distributions of camber and thickness in the blade shape. As a result, the strip theory prediction agreed well with the value given by the three-dimensional theory in the steady blade-plane pressure difference and in the work of an unsteady pneumatic force, showing its validity. Among the steady load components of angle of attack, camber and thickness, the component of camber whose absolute value is large has the strongest effect on the total work. The distribution reduced in the angle of attack and camber from hub toward tip gives a large and stable flutter margin. 5 refs., 13 figs., 2 tabs.

  15. Three-dimensional analysis of internal flow characteristics in the injection nozzle tip of direct-injection diesel engines; Sanjigen suchi kaiseki ni yoru DI diesel kikan no nenryo funsha nozzle nai ryudo tokusei no kaimei

    Energy Technology Data Exchange (ETDEWEB)

    Ogawa, H; Matsui, Y; Kimura, S [Nissan Motor Co. Ltd. Tokyo (Japan)

    1997-10-01

    To reduce the exhaust emissions and fuel consumption of direct-injection diesel engines, it is essential to optimize the fuel injection equipment closely related to combustion and emission characteristics. In this study, three-dimensional computation has been applied to investigate the effects of the injection nozzle specifications (e.g., sac volume, round shape at the inlet of the nozzle hole) and needle tip deviation on internal flow characteristics. The computational results revealed that the effects of the nozzle specifications and needle tip deviation with a smaller needle lift on internal flow characteristics and a general approach to optimize the injection nozzle specifications were obtained. 3 refs., 10 figs., 1 tab.

  16. Measurement method of a motion of traveling vehicle via three-dimensional image processing system; Sanjigen gazo kaisekiho ni yoru sharyo undo no keisoku to sono bunseki ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Yamada, Y; Matsuura, Y [Osaka Sangyo University, Osaka (Japan)

    1997-10-01

    Motion of traveling vehicle was taken by VTR-cameras set on the test course, as well as it also was measured by conventional measurement methods using sensors and devices installed in the vehicle. lotion pictures of the VTR were analyzed using three-dimensional image processing system (Peak lotus system). As a result, this system was especially effective for the measurement of traveling traces of the actual vehicle and the results were good agreement with the data obtained by conventional measurement methods. 2 refs., 8 figs.

  17. On the calculation of scattered fields by 3-D structure in the time-domain electromagnetic (TDEM) method; Jikan ryoiki denjiho ni okeru sanjigen kozo kara no sanranba no keisan ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Murakami, Y [Geological Survey of Japan, Tsukuba (Japan); Saito, A; Oya, T [Mitsui Mineral Development Engineering Co. Ltd., Tokyo (Japan)

    1996-10-01

    This paper describes the calculation method of 3-D underground structures in TDME method which measures only field components. Recently, FDTD method was developed as calculation method in time domain difference calculus, and the forward analysis accuracy of 3-D fields was rapidly improved. The survey results using a large-scale loop (600m{times}360m) were numerically analyzed by FDTD method. 16 measuring lines were prepared in both X and Y directions, and measuring points were prepared on intersection points of the measuring lines. Since signal current is staircase one, step and impulse responses of the ground were determined by calculating magnetic field and its time differentiation. The rectangular body (120m{times}120m{times}100m) of 0.2S/m in conductivity (5 ohm m in resistivity) was installed 160m under the ground as 3-D resistivity anomaly. The ground of 0.01S/m (100 ohm m) was assumed. Time variation in horizontal magnetic field vector plot of impulse responses of the uniform ground could be observed. The position of the resistivity anomaly could be also determined from spacial differentiation of magnetic field of grid pattern measuring points. 1 ref., 6 figs.

  18. 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

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-05-27

    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.

  19. Estimation of subsurface structures in a Minami Noshiro 3D seismic survey region by seismic-array observations of microtremors; Minami Noshiro sanjigen jishin tansa kuikinai no hyoso kozo ni tsuite. Bido no array kansoku ni yoru suitei

    Energy Technology Data Exchange (ETDEWEB)

    Okada, H; Ling, S; Ishikawa, K [Hokkaido University, Sapporo (Japan); Tsuburaya, Y; Minegishi, M [Japan National Oil Corp., Tokyo (Japan). Technology Research Center

    1997-05-27

    Japan National Oil Corporation Technology Research Center has carried out experiments on the three-dimensional seismic survey method which is regarded as an effective means for petroleum exploration. The experiments were conducted at the Minami Noshiro area in Akita Prefecture. Seismometer arrays were developed in radii of 30 to 300 m at seven points in the three-dimensional seismic exploration region to observe microtremors. The purpose is to estimate S-wave velocities from the ground surface to the foundation by using surface waves included in microtremors. Estimation of the surface bed structure is also included in the purpose since this is indispensable in seismic exploration using the reflection method. This paper reports results of the microtremor observations and the estimation on S-wave velocities (microtremor exploration). One or two kinds of arrays with different sizes composed of seven observation points per area were developed to observe microtremors independently. The important point in the result obtained in the present experiments is that a low velocity bed suggesting existence of faults was estimated. It will be necessary to repeat experiments and observations in the future to verify whether this microtremor exploration method has that much of exploration capability. For the time being, however, interest is addressed to considerations on comparison with the result of 3D experiments using the reflection method. 4 refs., 7 figs.

  20. Three-dimensional modeling in the electromagnetic/magnetotelluric methods. Accuracy of various finite-element and finite difference methods; Denjiho MT ho ni okeru sanjigen modeling. Shushu no yugen yosoho to sabunho no seido

    Energy Technology Data Exchange (ETDEWEB)

    Sasaki, Y [Kyushu University, Fukuoka (Japan). Faculty of Engineering

    1997-05-27

    To enhance the reliability of electromagnetic/magnetotelluric (MT) survey, calculation results of finite-element methods (FEMs) and finite difference methods (FDMs) were compared. Accuracy of individual methods and convergence of repitition solution were examined. As a result of the investigation, it was found that appropriate accuracy can be obtained from the edge FEM and FDM for the example of vertical magnetic dipole, and that the best accuracy can be obtained from the FDM among four methods for the example of MT survey. It was revealed that the ICBCG (incomplete Cholesky bi-conjugate gradient) method is an excellent method as a solution method of simultaneous equations from the viewpoint of accuracy and calculation time. For the joint FEM, solutions of SOR method converged for both the examples. It was concluded that the cause of error is not due to the error of numerical calculation, but due to the consideration without discontinuity of electric field. The conditions of coefficient matrix increased with decreasing the frequency, which resulted in the unstable numerical calculation. It would be required to incorporate the constraint in a certain form. 4 refs., 12 figs.

  1. Leading research and study report for fiscal 1998. Research and study of 3-dimensional ion processing technologies; 1998 nendo sendo chosa kenkyu hokokusho. Sanjigen ion kako gijutsu no chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Reported are the results of 'Research of 3-Dimensional Ion Processing Technologies.' Tasks to solve before the practical application of 3-dimensional technologies are extracted, and the possible effects of the new technologies on the creation of novel industries are investigated. In the field of new processing technologies, the special characteristics, current state, and tasks to solve are reported concerning the implantation technology, film formation technology, and hybridization which utilize plasma ion implantation. In the field of element technologies for device development, the current state and tasks of high-density plasma generation, homogeneous implantation, etc., are taken up, and the need is mentioned of inductively coupled plasma and surface wave excited plasma. As regards homogeneous implantation, the need is mentioned of technologies for forming matrix sheaths and pulsed plasma. In the field of 3-dimensional ion processing technologies application to the production of commercial goods, large items and their components such as automobiles, rollers, turbines, etc., are taken up, and the surface reforming technologies are reported, with reference made to their current state, tasks, predicted future market, concurrent technologies, feasibility of their application, the hopes and expectations they have aroused, etc. (NEDO)

  2. Leading research and study report for fiscal 1998. Research and study of 3-dimensional ion processing technologies; 1998 nendo sendo chosa kenkyu hokokusho. Sanjigen ion kako gijutsu no chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Reported are the results of 'Research of 3-Dimensional Ion Processing Technologies.' Tasks to solve before the practical application of 3-dimensional technologies are extracted, and the possible effects of the new technologies on the creation of novel industries are investigated. In the field of new processing technologies, the special characteristics, current state, and tasks to solve are reported concerning the implantation technology, film formation technology, and hybridization which utilize plasma ion implantation. In the field of element technologies for device development, the current state and tasks of high-density plasma generation, homogeneous implantation, etc., are taken up, and the need is mentioned of inductively coupled plasma and surface wave excited plasma. As regards homogeneous implantation, the need is mentioned of technologies for forming matrix sheaths and pulsed plasma. In the field of 3-dimensional ion processing technologies application to the production of commercial goods, large items and their components such as automobiles, rollers, turbines, etc., are taken up, and the surface reforming technologies are reported, with reference made to their current state, tasks, predicted future market, concurrent technologies, feasibility of their application, the hopes and expectations they have aroused, etc. (NEDO)

  3. FY 2000 Medical/engineering cooperative research project. Basic research on high-sensitivity gene-aided diagnostic systems for cancers, based on free DNA in blood; 2000 nendo kecchu yuri DNA ni yoru gan no kokando idenshi shindan system ni kansuru kiban kenkyu jisseki hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The research and development project is conducted to develop new methods directly related to early discovery of potential cancer patients, and the FY 2000 results are reported. The FY 2000 efforts are directed to improvement of intra-Alu-PCR method as the superhigh-sensitivity quantitative method, almost established in the previous fiscal year, to have higher reliability and simplicity suitable for automatic diagnosis. It is concluded that (there is no difference of significance between normal persons and cancer patients in free DNA concentration in the blood, determined by the Boyle/intra-Alu-PCR method), but this method is confirmed to be useful for prognostic monitoring of the patients who have the marrow or peripheral vessel cell transplant. Detection of qualitative gene abnormality of DNA in the peripheral vessels is investigated using the K-ras, p53 gene. Certain results are obtained by the MSA method for the former, and by the newly introduced WAVE DNA fragment analysis system for the latter. However, there are still a number of problems to be solved before these methods are applicable to screening for general medical examinations. The research on the (analysis of gene abnormality of cancer itself) has made a notable progress. (NEDO)

  4. FY 1995 basic research to develop instruments for diagnosis of atherosclerosis on the basis of autofluorescence analysis of blood and vascular walls; 1995 nendo ketsueki oyobi kekkanheki no jiko keiko bunseki ni yoru domyaku koka shindan kiki kaiahtsu no tame no kisoteki kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    To obtain the basic data to develop instruments for diagnosis of atherosclerosis and to elucidate the mechanisms of atherogenesis by focusing on the autofluorescence of blood and vascular walls of atherosclerotic animal models and human patients. We have performed experiments to examine the relationships between autofluorescence of blood and vascular walls of guinea pig atherosclerotic model and human patients and obtained the following results. 1. The autofluorescence from human atherosclerotic aorta included the components with longer wave length than normal aorta, suggesting that diagnosis of atherosclerotic aortic walls will be possible using spectroscopic analysis through glass fiber catheter into vascular system. Further studies should be needed to the quantitative diagnosis. 2. The autofluorescence from blood plasma of human atherosclerotic patients has showed that the peak wave length was shorter than that of normal plasma. This phenomenon was mainly caused by the oxidization of plasma, especially lipoproteins, LDL and HDL. 3. Atherosclerotic model of the guinea pigs was quite similar to human atherosclerosis at the points of cholesterol levels and localization of lipid deposit to arterial walls, and showed to be useful for the studies of atherosclerosis. (NEDO)

  5. Report on the FY 1999 medical/engineering joint research project. Developmental item: 'Fundamental research for minimally invasive/super selective localized diagnosis and treatment system'; Teishinshu kokando sentakuteki kyokusho shindan chiryo ichigenka system no kiban kenkyu 1999 nendo seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The fundamental research was started of a total system for the minimally invasive diagnosis/treatment to cope with the diseases of brain/heart blood vessel system and malignant tumor which are increasing in the aging society, and the development of application of the system was started. The results of the FY 1999 study were reported. In the R and D of the technology for an up-grade/multi-functional catheter, the following were carried out in the design of a micro-diameter catheter for carrying out the total diagnosis/treatment: study of infrared radiation measuring and fluorometric measuring methods, study of the specifications required for the catheter presumed of the gene introduction method by water jet system, study of 2 and 3 {mu}m synchronous oscillation fiber laser which is suitable for optical micro-operation, etc. The information/knowledge in design were obtained. Further, in the basic research on high-sensitivity texture property diagnosis using optical spectrometry, experimental studies were started on the early diagnosis technology by infrared spectroscopy and lymphonodus metastasis diagnosis technology. A study was also started of gene therapy technology by diseases which can be diagnosed/cured using catheter. (NEDO)

  6. FY 2000 report on the survey of the project for arrangement of the basis of the international energy utilization rationalization. Survey of diagnosis of energy conservation in main industries of ASEAN countries; 2000 nendo kokusai energy shiyo gorika kiban seibi jigyo chosa hokokusho. ASEAN shokoku shuyo sangyo ni okeru sho energy shindan chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the purpose of securing the stable energy supply/demand and contributing to the sustainable economic growth in ASEAN countries, survey of the diagnosis of energy conservation was conducted. In this survey, the diagnosis on energy conservation was made in terms of typical plants/works jointly with ASEAN-side engineers to grasp the actual state of energy consumption of each of the plants and to give advice on energy conservation policies. The countries and companies selected as objects in this fiscal year are a fiber plant in Malaysia (Arab-Malaysian Development Berhad), a paper mill in Indonesia (P.T.Kertas Leces Pulp Paper Mill) and a cement plant in Brunei (Butra Djajanti Cement SDN BHD). Diagnosis was made for each of them on January 15-19, on January 22-26 and on February 5-9, 2001, respectively. Through Workshops No. 1 (November 2000) and No. 2 (December 2000), this diagnosis program was carried out in 2001. On the basis of the results of the diagnosis, presented were the necessary energy conservation policies to be taken. (NEDO)

  7. Fiscal 1998 achievement report on regional consortium research and development project. Venture business raising type regional consortium - small business creating base type (Development of simplified diagnostic equipment for cardiovascular disorders using electrical and ultrasonic measurements); 1998 nendo choonpa oyobi denki keisokuho ni yoru kan'igata shinkekkankei kino shindan sochi no kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Research and development is conducted for the construction of a simplified system that will measure various values related to arteriosclerosis and resultant dynamic changes in blood flows, changes in cardiac muscle contraction characteristics, etc. In the development of the technology of cardiac output measurement, a measuring device using an impedance meter and an electrocardiograph is completed. An algorithm is developed for detecting irregular pulses in the electrocardiogram. In relation to cardiac muscle contraction characteristics, a sonocardiometric device is improved for the development of a device capable of measuring movements in the left ventricle walls. An algorithm is developed for the automatic recognition of the septum and the external walls in an M-mode image. In the development of a device for measuring dynamic changes in blood flows, a software program is completed, which uses a two-way rheometer to measure blood flow rates in shallow-seated arteries such as carotid arteries for the analysis of the maximum blood flow rate, acceleration, pattern, etc. In the development of an analyzer for blood vessel structures, a system capable of blood vessel structure analysis and tracking of fluctuations in walls due to cardiac cycles is developed. (NEDO)

  8. Achievement report for fiscal 1999 on research and development of technologies for medical welfare equipment. Chromosome image analysis and diagnosis device with confocal scanning laser microscope; 1999 nendo iryo fukushi kiki gijutsu kenkyu kaihatsu seika hokokusho. Kyoshoten laser kenbikyo ni yoru zensenshokutai gazo kaiseki shindan sochi

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-05-01

    The device is now satisfactorily capable of all image processing functions (bi-levelling, color deviation, brilliance adjustment, etc.) with the exception the karyotyping function. A substance that emits fluorescence by laser excitation is developed (for labelling the probe). A direct labelling method is studied, in which nucleic acid probes (nucleic acid labelled for chromosomal identification) will prove to be remarkably high in sensitivity. A new fluorescent reagent is synthesized, which is a BHHCT-4-dUTP to act as a nucleic acid probe. It is found that the new substance is superior to the conventional fluorescent substances in terms of stability and that all chromosomes may be forced into hybridization (selective combination of a probe with a peculiar chromosome) when various probes are labelled by this substance. A programing unit is constructed for a chromosomal aberration database. Items needed relative to chromosomes and parameters relative to chromosomal aberration data are appropriately arranged, and conditions to satisfy for their development into a database are studied. A rough design of an interface is complete. (NEDO)

  9. FY2000 report of the research results of medical/engineering cooperative research project, fundamental research on diagnosis/treatment systems by imaging higher order information of living systems; 2000 nendo igaku kogaku renkeigata kenkyu jigyo koji seitai joho no gazoka ni yoru shindan chiryo system ni kansuru kiban kenkyu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    The research and development efforts are made for the fundamental technology necessary for visualizing higher order information of the physiological functions of the organs and tissues at high precision and non-invasively, and for supporting treatment of the malignant tumor and cerebrovascular diseases, while keeping the functions of the affected organs intact, and the FY 2000 results are reported. The program for the visualizing techniques includes development of the pulse sequence for commercializing the proton and carbon magnetic resonance spectrometric imaging (MRSI), and development of the prototype 1H/13C-detecting circuit. The program for the real-time analysis of tissue dynamics includes production of cine-images of, e.g., the peristalsis of the uterus, to accumulate the basic data for monitoring dynamics of the abdominal organs. The program for systems for supporting treatment while keeping the functions of the affected organs intact includes the MR-aided temperature-sensing systems, and improvement of the techniques for correcting motion of the measured organs by extracting characteristic points in the images taken and of MR-aided temperature sensing accuracy. The program for radiotherapy and ultrasonic therapy of malignant tumors in the body stems includes development of high-accuracy irradiation system aided by real-time three-dimensional body motion monitoring system. (NEDO)

  10. Fiscal 2000 achievement report on the venture business assisting type regional consortium - Minor business creation base type. Research and development of smart catheter for omnidirectional diagnosis; 2000 nendo chiiki consortium kenkyu kaihatsu jigyo seika hokokusho. Zenhoi shindan smart catheter no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The aim is to develop a highly reliable device for detecting pathological developments deep inside the body by combining the pulse compression technique used in high performance radars and a quartz fiber. The project also aims to develop a system which, when compared with the conventional method, is capable of higher resolution at a short range and of reaching farther for the same resolution level. To be contrived for the development of a diagnostic catheter which combinedly uses the ultrasonic pulse compression and imaging technology and an optical picture system are a pulse signal reflection mirror for taking in ultrasonic picture data on the front and the sides in the lumen, an ultrasonic micromotor for rotating the mirror, and a high efficiency ultrasonic transducer similar in size to the waveguide for transmitting ultrasonic pulses to a quartz waveguide from outside the body and for receiving reflected signals. An effort is simultaneously exerted to make the diameter smaller of a quartz waveguide to be built in the catheter to provide a signal passage for the ultrasonic imaging system and the optical picture system for the realization of a catheter tip smaller and thinner as a whole. A study is made about a mechanical-electronic control system for easy luminal insertion. (NEDO)

  11. FY2000 report of the research results on medical/engineering cooperative research project, fundamental research for minimally invasive/super-selective localized diagnosis and treatment; 2000 nendo igaku kogaku renkeigata kenkyu jigyo teishinshu kokando sentakuteki kyokusho shindan chiryo ichigenka system no kiban kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    The research and development efforts are made for super-selective localized diagnosis and treatment and simultaneous observation of the treatment results at the catheter edge point, based on the molecular biology and gene engineering methods, and the FY 2000 results are reported. The program for investigating the catheter hardware designs include the diagrammatic evaluation of a multi-lumen multi-functional laparoscope and pancreatoscope for localized diagnosis and medical treatment. The program for development of diagnostic technology leads to development of double staining of cancer cells and macrophage, which allows the in vivo analysis of the cell-to-cell interactions. The program for studying the technology related to affective genes which can be diagnosed and treated by a catheter includes cloning of genes for therapy of chronic glomerular nephritis and adrenal neoplasm, and those for liver regeneration. The program for method of local delivery of genes includes studies on therapy of metastatic cancer of lymph node using liposome and adenovirus as a gene carrier, and on pulse laser delivery for local and efficient delivery of the genes. (NEDO)

  12. Report on the FY 1999 medical/engineering joint research project. Basic research on a high-sensitivity gene diagnosis system for cancer by free DNA in blood; 1999 nendo kecchu yuri DNA ni yoru gan no kokando idenshi shindan system ni kansuru kiban kenkyu jisseki hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    A 3-year (FY 1999-FY 2002) research plan titled 'The basic research on a high-sensitivity gene diagnosis system for cancer by free DNA in blood' was worked out and the study was started. The plan is as follows. It is confirmed that the quantitative study of peripheral blood free DNA becomes the information useful for early finding-out of cancer carriers, and the reliability and limits are made clear. By widely searching for gene anomaly of cancer itself, it is confirmed that it is possible to diagnose anomaly in quality of genes in peripheral blood free DNA. For those purposes, technology is developed for high-sensitively detecting/quantifying free DNA of peripheral blood, etc. and further detecting anomaly of the genes comprehensively, and the medical/engineering joint research is conducted to realize the early diagnosis of cancer. In FY 1999, the following studies were started using detection/analysis technology mainly by polymerase chain reaction (PCR): development of high-sensitivity detection technology of free DNA, development of high-sensitivity detection technology of gene anomaly, study of the cancer-origin gene anomaly, etc. (NEDO)

  13. FY1999 report of the research results of medical/engineering cooperative research project, fundamental research on diagnosis/treatment systems by imaging higher order information of living systems; 1999 nendo igaku kogaku renkeigata jigyo koji seitai joho no gazoka ni yoru shindan chiryo system ni kansuru kiban kenkyu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The research and development efforts are made for the fundamental technology necessary for visualizing higher order information of the organs and tissues at high precision and non-invasively, and for supporting treatment of the malignant tumor and cerebrovascular diseases, while keeping the functions of the affected organs intact, and the FY 1999 results are reported. The program for the visualizing techniques includes designs of the pulse sequence for a 1H/13C-MRSI analyzer which observes proton and carbon by magnetic resonance spectrometric imaging (MRSI), and starts its programming. The program for the real-time analysis of tissue dynamics starts the designs of the coil for pelvis receiving the signals for monitoring dynamics of the abdominal organs at superhigh field. The program for systems for supporting treatment while keeping the functions of the affected organs intact starts development of the MR-matching heating system, for which the applications are designed, and measures against eddy current and resistance of the system as a whole to noise are studied. Development of the high-precision supersonic wave and far-infrared ray irradiation systems is started, in order to establish the treatment aided by radiant ray while keeping functions of the affected organs intact. (NEDO)

  14. `Joint Research and Development of Industrial Technology,` an international research collaboration for fiscal 1997. Utilization of 3D-woven C/C composite materials to machine components; 1997 nendo kokusai kenkyu kyoryoku jigyo `sangyo kiban gijutsu kyodo kenkyu kaihatsu`. Sanjigen ori C/C composite zairyo no kikai buhin eno oyo ni kansuru kenkyu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    A polygonal mirror in a printer and the main shaft of a high-speed milling machine are used as models for the development of technology for applying C/C (carbon/carbon) composite materials to machine components that are required to turn at high speeds. Various C/C composites are tested for flexural strength and thermal expansion for the designing and manufacturing of C/C composites for the polygonal mirror and main shaft. The first coating on the C/C composite is deposited by laser/plasma hybrid spraying, and is a Mo coating. A spraying robot is experimentally built for homogeneous coating. In the case of polygonal mirror, an Al coating is deposited further by the gas-deposition method. The polygonal mirror proves excellent in both dimension and reflectance, and attains the target speed of 45,000rpm. In the case of milling machine main shaft, however, it is not strong enough to withstand 40,000rpm although it is a success from a viewpoint of coating technology and manufacturing technology. 15 refs., 33 figs., 13 tabs.

  15. Fiscal 1998 achievement report on regional consortium research and development project. Venture business fostering regional consortium--Creation of key industries (Development of Task-Oriented Robot Control System TORCS based on versatile 3-dimensional vision system VVV--Vertical Volumetric Vision); 1998 nendo sanjigen shikaku system VVV wo mochiita task shikogata robot seigyo system TORCS no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Research is conducted for the development of a highly autonomous robot control system TORCS for the purpose of realizing an automated, unattended manufacturing process. In the development of an interface, an indicating function is built which easily adds or removes job attributes relative to given shape data. In the development of a 3-dimensional vision system VVV, a camera set and a new range finder are manufactured for ranging and recognition, the latter being an improvement from the conventional laser-aided range finder TDS. A 3-dimensional image processor is developed, which picks up pictures at a speed approximately 8 times higher than that of the conventional type. In the development of orbit calculating software programs, a job planner, an operation planner, and a vision planner are prepared. A robot program which is necessary for robot operation is also prepared. In an evaluation test involving a simulated casting line, the pick-and-place concept is successfully implemented for several kinds of cast articles positioned at random on a conveyer in motion. Difference in environmental conditions between manufacturing sites is not pursued in this paper on the ground that such should be discussed on the case-by-case basis. (NEDO)

  16. Ionization current in N2 gas. 11. Three dimensional analysis for loss processes of metastable particles affected by the reflection at the boundary; N2 gas chu ni okeru denri denryu. 11. Kyokai deno hansha wo koryoshita jun`antei reiki ryushi sonshitsu katei no sanjigen kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, S.; Ito, H.; Sekizawa, H.; Ikuta, N. [Chiba Institute of Technology, Chiba (Japan)

    1998-10-01

    Loss processes of the nitrogen metastable molecule N2(A{sup 3}{Sigma}u{sup +}) in plane parallel electrodes have been investigated by us previously by solving the diffusion equation. Our procedure is based on an analysis using the third kind of boundary condition which can take account of finite values for the density of N2(A{sup 3}{Sigma}u{sup +}) at the electrode surfaces. The values of the effective lifetime of N2(A{sup 3}{Sigma}u{sup +}) calculated from this analysis were reasonably consistent with our experiments. This paper describes the behavior of the effective lifetimes of N2(A{sup 3}{Sigma}u{sup +}) in a cylindrical cavity. The analytical treatment of the diffusion equation for N2(A{sup 3}{Sigma}u{sup +}) proposed by us is extended to the three dimensional space. We report the nature of the effective lifetimes of metastable molecule in the cylindrical cavity systematically. 16 refs., 9 figs.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

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

  18. Fiscal 1999 achievement report on regional consortium research and development project. Regional consortium research field (Development of super-devices for medical equipment by 3-dimensional microstructure machining technology - 3rd year); 1999 nendo micro sanjigen kako gijutsu ni yoru iryo kikiyo super device no kaihatsu seika hokokusho (dai 3 nendo)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In the development of micromechanisms, a highly efficient micromotor capable of outputting 25g/cm is developed, in which a DC motor, 4mm in diameter and 12.5mm in length, and a deceleration mechanism are combined. A technology is established of manufacturing microtubes 0.1mm in internal diameter of various materials for use with medical equipment. A direct cam screw type discharge mechanism for minute amounts is developed. It is now foreseen that a cartridge (air pressurized) discharge mechanism and a tube pump will be commercialized. A microjoint is developed with a built-in micro check valve for medicine flow channels. A microfilter is developed using a polypropylene hollow yarn membrane. A microsensor is developed, which responds to a 0.01-second change in flow rate at an error rate of {+-}3% or less. A microcomputer control system is test-produced. Newly developed devices are integrated for the test production of a portable device for sustained infusion of medicine, and the product is found to be superior to the existing systems. Also described are the utilization of various micromachining techniques. (NEDO)

  19. Report of the results of the fiscal 1997 regional consortium R and D project. Regional consortium field / Development of medical equipment use super devices using micro-3D processing technology (first fiscal year); 1997 nendo chiiki consortium kenkyu kaihatsu jigyo. Chiiki consortium bun`ya / micro sanjigen kako gijutsu ni yoru iryo kikiyo super device no kaihatsu (daiichi nendo) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The R and D are conducted of medical equipment use super devices using technical seeds of Mechanical Engineering Laboratory and micro-3D processing technology which was developed from precision processing technology, etc. which is integrated in the Suwa area, Nagano prefecture. For it, the following R and D are carried out: 1) development of micromechanism: DC3V driven micromotor, chemical use microtube with diameter of 0.1mm, micro-delivery mechanism of chemicals, misting mechanism of chemicals, microjoint, microconnector and cable, and microfilter. 2) development of microsensor: small size/non-contact, microflow of chemicals, and sensor to detect emission of bubble. 3) development of control system. In fiscal 1997, in 1), each element was trially made to clarify subjects. In 2), it was made clear that as flow sensor, ultrasonic type, electromagnetic type and thermal mass flow type are viable, and as bubble sensor, optical sensor is viable. In 3), the following were conducted: information collection of contactless charging circuit, and trial fabrication of liquid crystal polymer ultra thin casing. 9 refs., 84 figs., 30 tabs.

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

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

  1. Research and development of basic technologies for the next generation industries, 'three-dimensional circuit elements'. Evaluation on the research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'sanjigen kairo soshi'. Kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-04-01

    Research, development and evaluation were performed with an objective of establishing the basic technology related to three-dimensional circuit elements that integrate functions at ultra-high density. For the basic technology of lamination, the SOI technology suitable for the three-dimensional circuit elements was developed, and it has become possible to manufacture high-quality multi-layered crystalline structure by means of annealing that uses laser and electron beam. In addition, a lateral epitaxial technology for solid phase was developed, and the base to be applied to the three-dimensional circuit elements was established. Furthermore, the technology to put thin film circuits together would be useful for high-density integration in the future. The three-dimensional circuit makes parallel processing in each segment possible, whereas a possibility was shown that the processing can be performed at much higher speed than before. Actually a prototype three-dimensional circuit equipped with functions for parallel processing and judgment processing was fabricated. The image pre-processing which has been impossible on the real time basis in the conventional two-dimensional integrated circuit was realized in a speed as fast as milli-second order. These achievements lead to a belief that the targets for the present research and development have been achieved. (NEDO)

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-05-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

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

  4. Physical evaluation of color and monochrome medical displays using an imaging colorimeter

    Science.gov (United States)

    Roehrig, Hans; Gu, Xiliang; Fan, Jiahua

    2013-03-01

    This paper presents an approach to physical evaluation of color and monochrome medical grade displays using an imaging colorimeter. The purpose of this study was to examine the influence of medical display types, monochrome or color at the same maximum luminance settings, on diagnostic performance. The focus was on the measurements of physical characteristics including spatial resolution and noise performance, which we believed could affect the clinical performance. Specifically, Modulation Transfer Function (MTF) and Noise Power Spectrum (NPS) were evaluated and compared at different digital driving levels (DDL) between two EIZO displays.

  5. Technical and radiological image quality comparison of different liquid crystal displays for radiology

    Directory of Open Access Journals (Sweden)

    Dams FE

    2014-10-01

    Full Text Available Francina EM Dams,2 KY Esther Leung,1 Pieter HM van der Valk,2 Marc CJM Kock,2 Jeroen Bosman,1 Sjoerd P Niehof1 1Medical Physics and Technology, 2Department of Radiology, Albert Schweitzer Hospital, Dordrecht, The Netherlands Background: To inform cost-effective decisions in purchasing new medical liquid crystal displays, we compared the image quality in displays made by three manufacturers. Methods: We recruited 19 radiologists and residents to compare the image quality of four liquid crystal displays, including 3-megapixel Barco®, Eizo®, and NEC® displays and a 6-megapixel Barco display. The evaluators were blinded to the manufacturers' names. Technical assessments were based on acceptance criteria and test patterns proposed by the American Association of Physicists in Medicine. Radiological assessments were performed on images from the American Association of Physicists in Medicine Task Group 18. They included X-ray images of the thorax, knee, and breast, a computed tomographic image of the thorax, and a magnetic resonance image of the brain. Image quality was scored on an analog scale (range 0–10. Statistical analysis was performed with repeated-measures analysis of variance. Results: The Barco 3-megapixel display passed all acceptance criteria. The Eizo and NEC displays passed the acceptance criteria, except for the darkest pixel value in the grayscale display function. The Barco 6-megapixel display failed criteria for the maximum luminance response and the veiling glare. Mean radiological assessment scores were 7.8±1.1 (Barco 3-megapixel, 7.8±1.2 (Eizo, 8.1±1.0 (NEC, and 8.1±1.0 (Barco 6-megapixel. No significant differences were found between displays. Conclusion: According to the tested criteria, all the displays had comparable image quality; however, there was a three-fold difference in price between the most and least expensive displays. Keywords: data display, humans, radiographic image enhancement, user-computer interface

  6. FY 2000 report on the research cooperation project 'research cooperation diagnosis survey.' Research cooperation in technology to improve the environmental response type industrial use water circulation utilization (Thailand) Nos. 1 and 2. and research cooperation in technology to recover the harmless metal in smoke/ash in smelting works (Chile); 2000 nendo kenkyu kyoryoku jigyo 'kenkyu kyoryoku shindan chosa' hokokusho. Kankyo taiogata kogyoyosui junkan riyo kojo gijutsu ni kansuru kenkyu kyoryoku (Tai) 1 kaime 2 kaime, seirenjo enbai no mugaika kinzoku kaishu gijutsu ni kansuru kenkyu kyoryoku (Chiri)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    In Chile, for the purpose of coping with problems on the ground subsidence and water shortage caused by pumping up the industrial use ground water, survey was conducted of the research cooperation in reutilization of the industrial waste water retreated for the food industry and the fiber industry. As a result, as a MOU plan, the establishment of the regenerative utilization technology was proposed of the treated water after the activated sludge treatment in food plants and after the Lagoon treatment in the fiber/dyeing industry. In Chile, relating to the harmless metal recovery technology to recover valuable metals such as copper, lead, zinc and silver included in the smoke/ash containing arsenic in copper smelting works at low cost by reducing environmental loads, conducted were survey for research cooperation and discussion on the making of a draft of the basic agreement. The project includes the high grade leaching separation, simplification/non-slagging of the lead/silver residue melting process, optimization of the copper separation/recovery method, fixation/weight-reduction of the leached arsenic, optimization of the zinc recovery method, optimization of the final waste water treating process, study of the design/construction/operation of the pilot plant, etc. (NEDO)

  7. Report on diagnosis and survey on research cooperation in the research cooperation promotion project in fiscal 1994. Research cooperation on manufacturing clean fuel for consumer use from gasified coal gas / Research cooperation on a method for pulp manufacturing of low-pollution and energy saving type by using non-wood raw materials; 1994 nendo kenkyu kyoryoku suishin jigyo 'kenkyu kyoryoku shindan chosa' hokokusho. Sekitan gas ka gas kara no minseiyo clean nenryo seizo ni kansuru kenkyu kyoryoku / himokuzaikei genryo wo mochiita teikogai shoenegata pulp seizoho ni kansuru kenkyu kyoryoku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    In solving the problems in developing technologies peculiar to developing countries, Japan will provide cooperation. This paper describes the achievements in diagnosis and survey in fiscal 1994. Development will be made on a manufacturing process for dimethylether (DME), a synthesizable and portable clean fuel, by using coal produced in China. Annual DME production of 10,000 tons will make it possible to supply 50,000 households with the fuel of one year consumption, whereas return on the construction investment and profit can be expected. At the Shanxi Coal Chemistry Research Institute, a 500 tons a year plant making DME from gasified coal gas is scheduled to begin operation. Development will be made on a pulp manufacturing technology in China, in which environmental pollution due to waste water is largely reduced, and operation cost is reduced. Application of the oxygen-alkaline evaporation and decomposition process developed in Japan will be considered, which uses non-wood raw material such as rice straw, wheat straw and megass). The raw materials are immersed continually in low-concentration alkaline solution, dehydrated, and then lignin is oxidized and decomposed by using oxygen in a continuous oxidation reactor to make the material into pulp. China uses non-wood materials as paper raw materials at 80%, whereas effects are expected in waste water pollution prevention, energy saving, resource saving and economics. (NEDO)

  8. FY 2000 report on the research cooperation project 'research cooperation diagnosis survey.' Research cooperation in technology to improve the environmental response type industrial use water circulation utilization (Thailand) Nos. 1 and 2. and research cooperation in technology to recover the harmless metal in smoke/ash in smelting works (Chile); 2000 nendo kenkyu kyoryoku jigyo 'kenkyu kyoryoku shindan chosa' hokokusho. Kankyo taiogata kogyoyosui junkan riyo kojo gijutsu ni kansuru kenkyu kyoryoku (Tai) 1 kaime 2 kaime, seirenjo enbai no mugaika kinzoku kaishu gijutsu ni kansuru kenkyu kyoryoku (Chiri)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    In Chile, for the purpose of coping with problems on the ground subsidence and water shortage caused by pumping up the industrial use ground water, survey was conducted of the research cooperation in reutilization of the industrial waste water retreated for the food industry and the fiber industry. As a result, as a MOU plan, the establishment of the regenerative utilization technology was proposed of the treated water after the activated sludge treatment in food plants and after the Lagoon treatment in the fiber/dyeing industry. In Chile, relating to the harmless metal recovery technology to recover valuable metals such as copper, lead, zinc and silver included in the smoke/ash containing arsenic in copper smelting works at low cost by reducing environmental loads, conducted were survey for research cooperation and discussion on the making of a draft of the basic agreement. The project includes the high grade leaching separation, simplification/non-slagging of the lead/silver residue melting process, optimization of the copper separation/recovery method, fixation/weight-reduction of the leached arsenic, optimization of the zinc recovery method, optimization of the final waste water treating process, study of the design/construction/operation of the pilot plant, etc. (NEDO)

  9. Socio-psycho-historical observation on the twin

    International Nuclear Information System (INIS)

    Watanabe, Shoji; Satow, Yukio; Ueoka, Hiroshi; Munaka, Masaki; Kurihara, Minoru

    1980-01-01

    The so-called ''twin control study'', mainly on the monozygotic twins one of which was A-bomb exposed and the other was non-exposed were carried out. Sampling was conducted utilizing the materials as follows: 1) The survey on casualities of A-bomb exposed families in Hiroshima which was undertaken in 1946. 2) The survey of A-bomb survivors in 1965. 3) A-bomb exposed family survey conducted between 1973 to 1975. 4) Investigations of A-bomb victims exposed in the proximal areas from the hypocenter. From the above mentioned materials 470 pairs were selected, of which 220 were exposed. Among them 172 pairs were twins of the same sex. Female and male pair were also employed. In one case they were exposed, while the others were nonexposed. Two pairs were examined under the following methods: 1) Depth interview to ascertain familial casualities with reference to the family life cycle. 2) Socio-historical research. 3) Motoaki's Jinkaku Shindan Kensa (Modified Rorschach test by H. Motoaki), and T.A.T. test. Results obtained were summarized as follows: 1) Both pairs of twins were similar appearance, and also personality traits, and had a strong feeling of companionship for each other. 2) In family relationships, the persons studied were very conscious of the role expectations of elder and younger siblings in the twin pairs. 3) Through depth interview and projective test, A-bomb exposed pairs still showed deep psychological stresses, resulting from the A-bomb disaster. 4) Both among the exposed twins and within the nonexposed control group twin siblings had a close feeling of companionship for each other. However, nonexposed twins could not understand the psychological experience of twins who had been subjected to the atomic disaster. (author)

  10. Socio-psycho-historical observation on the twin. Sampling methods and case study of the atomic bomb exposed twins

    Energy Technology Data Exchange (ETDEWEB)

    Watanabe, S; Satow, Y; Ueoka, Hiroshi; Munaka, M; Kurihara, M [Hiroshima Univ. (Japan). Research Inst. for Nuclear Medicine and Biology

    1980-07-01

    The so-called ''twin control study'', mainly on the monozygotic twins one of which was A-bomb exposed and the other was non-exposed were carried out. Sampling was conducted utilizing the materials as follows: 1) The survey on casualities of A-bomb exposed families in Hiroshima which was undertaken in 1946. 2) The survey of A-bomb survivors in 1965. 3) A-bomb exposed family survey conducted between 1973 to 1975. 4) Investigations of A-bomb victims exposed in the proximal areas from the hypocenter. From the above mentioned materials 470 pairs were selected, of which 220 were exposed. Among them 172 pairs were twins of the same sex. Female and male pair were also employed. In one case they were exposed, while the others were nonexposed. Two pairs were examined under the following methods: 1) Depth interview to ascertain familial casualities with reference to the family life cycle. 2) Socio-historical research. 3) Motoaki's Jinkaku Shindan Kensa (Modified Rorschach test by H. Motoaki), and T.A.T. test. Results obtained were summarized as follows: 1) Both pairs of twins were of similar appearance and personality traits, and had a strong feeling of companionship for each other. 2) In family relationships, the persons studied were very conscious of the role expectations of elder and younger siblings in the twin pairs. 3) Through depth interviews and projective tests, A-bomb exposed pairs still showed deep psychological stresses, resulting from the A-bomb disaster. 4) Both among the exposed twins and within the nonexposed control group twin siblings had a close feeling of companionship for each other. However, nonexposed twins could not understand the psychological experience of twins who had been subjected to the atomic disaster.

  11. What monitor can replace the cathode-ray tube for visual stimulation to elicit multifocal electroretinograms?

    Science.gov (United States)

    Matsumoto, Celso Soiti; Shinoda, Kei; Matsumoto, Harue; Seki, Keisuke; Nagasaka, Eiichiro; Iwata, Takeshi; Mizota, Atsushi

    2014-08-05

    To compare a conventional cathode-ray tube (CRT) screen to organic light-emitting diode (OLED) and liquid crystal display (LCD) screens as visual stimulators to elicit multifocal electroretinograms (mfERGs), mfERGs were recorded from seven eyes of seven healthy volunteers (21 ± 2 years). The mfERGs elicited by a conventional CRT screen (S710, Compaq Computer Co.) were compared to those elicited by a studio-grade master OLED monitor (PVM-1741, Sony, Japan) and a conventional LCD (S1721, Flexscan, Eizo Nanao Corp., Japan). The luminance changes of each monitor were measured with a photodiode. CRT, OLED, and LCD screens with a frame frequency of 60 Hz were studied. A hexagonal stimulus array with 61 stimulus elements was created on each monitor. The serial white stimuli of the OLED screen at 60 Hz did not fuse, and that of the LCD screens fused. The amplitudes of P1 and P2 of the first-order kernels of the mfERGs were not significantly different from those elicited by the CRT and OLED screens, and the P1 amplitude of the first-order kernel elicited by the LCD stimuli was significantly smaller than that elicited by the CRT in all the groups of the averaged hexagonal elements. The implicit times were approximately 10 ms longer in almost all components elicited by the LCD screen compared to those elicited by the CRT screen. The mfERGs elicited by monitors other than the CRT should be carefully interpreted, especially those elicited by LCD screens. The OLED had good performance, and we conclude that it can replace the CRT as a stimulator for mfERGs; however, a collection of normative data is recommended. © 2014 ARVO.