5篇
您的检索式：作者名="Tomohiro Ohuchi"
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| 1 | Technical Development of Simple Shear Deformation Experiments Using a Deformation-DIA Apparatus显示文摘Technical developments for simple shear deformation experiments at high pressures were made. The newly designed cell assembly can be compressed by deformation-DIA apparatuses with the MA 6-6 system, which consists of six second-stage tungsten carbide anvils (with a truncated edge length of 5 mm) and the anvil guide. Deformation of samples was barely observed during the compression process, showing that the shear strain of the deformed samples can be measured by the rotation of a strain marker. Simple shear deformation experiments on anhydrous and hydrous oli-vine aggregates were conducted under upper mantle conditions (pressures of 5.2–7.6 GPa and tem-peratures of 1 473–1 573 K), and sample deformation with a shear strain of γ=0.8–1.2 was success-fully achieved at a shear strain rate of 4.0×10-5–7.5×10-5 s-1. The present study extended the pressure range of simple shear deformation experiments in the deformation-DIA apparatus from 3 GPa in an early study to 7.6 GPa at high temperatures. | Tomohiro Ohuchi Takaaki Kawazoe Norimasa Nishiyama Yu Nishihara Tetsuo Irifune | 2010 | Journal of Earth Science2010，21，5： | 2 |
| 2 | Ultra portable LCoS projector with high-performance optical system显示文摘 | Satoshi Ohuchi Tomohiro Miyoshi Taro lmahase | 2002 | IEEE Journal of Transactions On Consumer Electronics2002，48，3： | 1 |
| 3 | Preliminary Deformation Experiment of Ringwoodite at 20 GPa and 1 700 K Using a D-DIA Apparatus显示文摘A deformation experiment of ringwoodite with a strain of 9% was achieved at 20 GPa and 1 700 K and at a strain rate of 3×10-5 s-1 using a deformation-DIA (D-DIA) apparatus and a multi-anvil 6-6 (MA 6-6) assembly. The crystallographic orientations of the deformed sample were suc-cessfully analyzed by the electron backscatter diffraction (EBSD) method, although any notable lattice-preferred orientation (LPO) was not observed presumably due to the insufficient strain in the present experiment. In this study, the deformation experiment on ringwoodite succeeded at P-T conditions con-sistent with the lower part of the mantle transition zone and at a controlled strain rate for the first time. The present study extended the pressure range of deformation experiments in the D-DIA apparatus from 16 GPa in our earlier study to 20 GPa at 1 700 K. The successful extension of the pressure range demonstrates potential importance of the D-DIA apparatus in studying rheological properties of min-erals under the P-T conditions of the whole mantle transition zone. | Takaaki Kawazoe Tomohiro Ohuchi Norimasa Nishiyama Yu Nishihara Tetsuo Irifune | 2010 | Journal of Earth Science2010，21，5： | 1 |
| 4 | An effective method for laboratory acoustic emission detection and location using template matching显示文摘In this paper, a template matching and location method, which has been rapidly adopted in microseismic research in recent years, is applied to laboratory acoustic emission(AE) monitoring. First, we used traditional methods to detect P-wave first motions and locate AE hypocenters in three dimensions. In addition, we selected events located with sufficient accuracy(normally corresponding AE events of relatively larger energy, showing clear P-wave first motion and a higher signal-to-noise ratio in most channels) as template events. Then, the template events were used to scan and match other poorly located events in triggered event records or weak events in continuous records. Through crosscorrelation of the multi-channel waveforms between the template and the event to be detected, the weak signal was detected and located using a grid-searching algorithm(with the grid centered at the template hypocenter). In order to examine the performance of the approach, we calibrated the proposed method using experimental data of different rocks and different types of experiments. The results show that the proposed method can significantly improve the detection capability and location accuracy, and can be applied to various laboratory and in situ experiments, which use multi-channel AE monitoring with waveforms recorded in either triggering or continuous mode. | Xinglin Lei Tomohiro Ohuchi Manami Kitamura Xiaying Li Qi Li | 2022 | Journal of Rock Mechanics and Geotechnical Engineering2022，14，5： | 1 |
| 5 | Nonthermal influence of microwave power on chemical reactions显示文摘 | Shibata Chokichiro Tomohiro Kashima Kimihiro Ohuchi | | 0，，： | 1 |
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