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Geodesy and Geodynamics 2020年第4期11卷 252-257页

作者： Endra Gunawan Sri Widiyantoro Pepen Supendi Takuya nishimura Global Geophysics Research Group Faculty of Mining and Petroleum EngineeringBandung Institute of TechnologyIndonesia Agency for Meteorological Climatological and GeophysicsIndonesia Disaster Prevention Research Institute Kyoto UniversityJapan Faculty of Engineering Maranatha Christian University BandungIndonesia

This study investigates the relation between the Coulomb failure stress of the mainshock with the aftershocks sequence following the 2018 Palu-Donggala earthquake in *** calculate the Coulomb failure stress using the available coseismic fault models,which had varied moment magnitudes between M_W7.53~M_*** interpretations of the fault sources were suggested by previous *** two fault models suggested that one inland fault segment ruptured during the earthquake,another fault model proposed that two fault segments ruptured inland of Central Sulawesi and along the coast of Palu *** further overlay the positive and negative values of Coulomb failure stress with the reported relocated *** find that only by conducting Coulomb failure stress analysis,we can not favour the preference of the coseismic fault which explains aftershock *** investigation demonstrates that additional observational data from geological field surveys are required to identify the surface rupture in comparison with the coseismic fault model.

关键词： The 2018 Palu-Donggala earthquake Aftershocks Coulomb failure stress Geological field report

Treatment of a densely fused fissure during thoracoscopic right middle lobectomy

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Open Journal of Pediatrics 2013年第2期3卷 105-107页

作者： Hiroyuki Koga kenji Suzuki Tadaharu Okazaki Kinya nishimura Geoffrey J. Lane Atsuyuki Yamataka Department of Anesthesiology Juntendo University School of Medicine Tokyo Japan Department of Pediatric General and Urogenital Surgery Juntendo University School of Medicine Tokyo Japan Department of Thoracic General Surgery Juntendo University School of Medicine Tokyo Japan

Aim: To report a case of fused fissure between the right upper and middle lobes that we treated using a surgical stapler rather than a Ligasure device for the benefit of creating a better division between the right upper and middle lobes and to effectively seal the lung parenchyma. Case: A 2-year-old girl with congenital cystic adenomatoid malformation of the right middle lobe (RML) was referred to our institution for further management after a series of infections. The vein of the RML, which drains into the superior pulmonary vein, was isolated and divided using endoclips. The bronchus was then exposed and divided using endo-clips. The arteries of the RML could be identified and ligated, allowing a line demarcating the major fissure to be identified and dissected. A stapler device was then used to seal the lung parenchyma and create a division between the right upper and middle lobes. She is currently well after follow-up of 16 months, with no episodes of respiratory distress or recurrence of symptoms. Conclusion: Our technique for dividing the pulmonary vein, then the bronchus, then the pulmonary artery and finally the fused fissure is safe and could be applied whenever fused fissures are encountered during thoracoscopic pulmonary lobectomy.

关键词： Thoracoscopic Surgery Pulmonary Lobectomy Fused Fissure Surgical Stapler

Effects of gamma-ray irradiation on electronic and non-electronic equipment of Large Helical Device

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Plasma Science and Technology 2017年第2期19卷 95-100页

作者： K OGAWA T NISHITANI M ISOBE M SATO M YOKOTA H HAYASHI T KOBUCHI T nishimura National Institute for Fusion Science National Institutes of Natural Sciences322-6 0roshi-choToki 509-5292Japan SOKENDAI(The Graduate University for Advanced Studies) School of Physical Sciences322-6 Oroshi-choTold 509-5292Japan

In a deuterium operation on the Large Helical Device, the measurement and control equipment placed in the toms hall must survive under an environment of radiation, To study the effects of gamma-ray irradiation on the equipment, an irradiation experiment is performed at the Cobalt-60 irradiation facility of Nagoya University. Transient and permanent effects on a personal computer, media converters, programmable logic controllers, isolation amplifiers, a web camera, optical flow meters, and water sealing gaskets are experimentally surveyed. Transient noise appears on the web camera. Offset of the signal increases with an increase of the integrated dose on the programmable logic controller. The DeviceNet module on the programmable logic controller is broken at the integrated dose of 72 Gy, which is the expected range of the integrated dose of the toms hall. The other equipment can survive under the gamma-ray field in the toms hall.

关键词： large helical device gamma-ray irradiation radiation effect

Flight simulation from takeoff to yawing of eVTOL airplane with coaxial propellers by fluid-rigid body interaction

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Advances in Aerodynamics 2023年第1期5卷 29-43页

作者： Ritsuka Gomi Ayato Takii Masashi Yamakawa Shinichi Asao Seiichi Takeuchi Momoha nishimura Department of Mechanical Engineering Kyoto Institute of TechnologyKyotoJapan Department of Mechanical Engineering College of Industrial TechnologyHyogoJapan

In this study,we adopt a coupled fluid-rigid body simulation using the moving computational domain method and multi-axis sliding mesh method for the takeoff,hovering,and yawing flight of an electric vertical takeoff and landing aircraft(eVTOL).The aircraft model has four pairs of coaxial propellers,and the computational domain is divided into three domains to move the aircraft and eight propeller domains to rotate the *** a result,we clarify the behavior and aerodynamic force of the aircraft when the input values are determined by the automatic *** results in the flow field also show that the downwash spreads in a crisscross pattern on the ground,the wind reaches different ranges on the ground depending on the flight altitude,and that the coaxial propeller causes an asymmetry in the velocity field during ***-quently,we conclude that this method is effective for the flight simulation of an eVTOL.

关键词： Computational fluid dynamics Moving grid Coupled simulation Flying car eVTOL

Simulation of Fast-Recovery Cross-Modulation Characteristics in Semiconductor Optical Amplifier with Assist Light

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光学学报 2003年第S1期23卷 453-454页

作者： Atsushi Matusmoto Kosuke nishimura Katsuyuki Utaka Masashi Usami School of Science and Engineering Waseda University 3-4-1 Ohkubo Shinjuku Tokyo 169-8555 JapanKDDI R&D Laboratories Inc. 2-1-15 Ohara Kamifukuoka Saitama 356-8502 JapanSchool of Science and Engineering Waseda University 3-4-1 Ohkubo Shinjuku Tokyo 169-8555 JapanKDDI R&D Laboratories Inc. 2-1-15 Ohara Kamifukuoka Saitama 356-8502 Japan

We analyzed the characteristics of cross-modulations (XM) and their recovery times in a semiconductor optical amplifier by a newly-developed TMM. The calculated results suggest faster recovery of the XMs by introducin... 详细信息

关键词： Simulation of Fast-Recovery Cross-Modulation Characteristics in Semiconductor Optical Amplifier with Assist Light as for of XPM SOA in with

Formation of City-Lake Integrated Urban Morphology in Hangzhou: A Study on the Related History Starting from the New Market Plan of the Lakefront District in Early Modern Times

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城市规划：英文版 2015年第2期24卷 64-73页

作者： Fu Shulan Yukio nishimura Qian Fang Department of Regional and Urban Planning College of Civil Engineering and ArchitectureZhejiang University Research Center for Advanced Science and Technology The University of Tokyo ICOMOS Japan

In the early modern times in China, local planners have made several construction plans for Hangzhou's old city center and the West Lake, resulting in the gradual formation of a city-lake integrated urban form, which is valued nowadays for its uniqueness and characteristically Chinese cityscape aesthetics. The key plan that spurred this process of linking the old city with the West Lake was a plan titled "Building a New Market"(1914). By elucidating the time, process, and contents of the plan, this paper analyzes the spatial transformation of the lakefront districts based on old maps, and then interprets how it led the forming process of the "city-lake integrated" urban form in Hangzhou.

关键词： New Market Plan Hangzhou modern times lakefront di

Radiation Temperature Measurement of an Imploded X-Ray Source with a Filtered-Multi-Channel Pinhole Camera

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Chinese Physics Letters 2010年第12期27卷 136-138页

作者：王首钧董全力张翼李玉同张蕾 Shinsuke Fujioka Norimasa Yamamoto Hiroaki nishimura 张杰 Beijing National Laboratoiy of Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 Institute of Laser Engineering Osaka University Osaka 565-0871 Japan Department of Physics Shanghai Jiaotong University Shanghai 200240

The Plankian radiation temperature of an intense x-ray source driven by imploding spherical CH plastic shell is measured with a filtered-multi-channel pinhole camera. With all the twelve laser beams of the GEKKO-XII laser facility applied, the average radiation temperature is measured to be around 465 eV while the temperature at the core is as high as 818eV. This value is confirmed by other instruments applied.

关键词： Plasma physics

Structure Modification of Alloy Solidified With Electromagnetic Field

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Journal of Iron and Steel Research International 2012年第S1期19卷 203-207页

作者： IWAI Kazuhiko KOHAMA Takenori nishimura Tomohiro EcoTopia Science Institute Energy Science Research DepartmentNagoya UniversityFuro-choChikusa-kuNagoya 464-8603Japan Department of Materials Physics and Energy EngineeringNagoya UniversityFuro-choChikusa-kuNagoya464-8603Japan

A S45C carbon steel has been solidified trader different electromagnetic conditions to investigate the effect of the electromagnetic force imposition and its imposing period on the solidified structure in this *** excitation of the electromagnetic force,a static magnetic field and a direct electric current were simultaneously imposed on a sample under a certain period of the *** the solidification,the microstructures were observed and compared each other. As the results,microstructure of the S45C steel under the simultaneous imposition of a static magnetic field of 1T and a direct electric current of 20A in the latter stage of its solidification was dendritic while it was globular if the electromagnetic force was imposed during the whole solidification period.

关键词： electromagnetic force carbon steel solidification

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一种自适应音频数字水印算法的研究与仿真

系统仿真学报 2007年第2期19卷 461-464页

作者：王慧琴 Ryouichi nishimura Yoiti SUZUKI 西安建筑科技大学信息与控制工程学院西安710055 日本东北大学电气通信研究所

提出了一种自适应扩展回声音频数字水印算法。利用PN序列将音频信号的单回声内核进行扩展后作为水印信号,结合了回声隐藏的鲁棒性和扩频技术的保密性等特点,从而提高了水印算法的安全可靠性。基于心理声学模型设计二维模糊控制器,实现... 详细信息

提出了一种自适应扩展回声音频数字水印算法。利用PN序列将音频信号的单回声内核进行扩展后作为水印信号,结合了回声隐藏的鲁棒性和扩频技术的保密性等特点,从而提高了水印算法的安全可靠性。基于心理声学模型设计二维模糊控制器,实现了水印嵌入强度的自适应。采用ABX主观测试和相关度水印检测测试对算法进行了仿真试验,通过将嵌入水印后的音频信号进行低通滤波、加入噪声以及重采样等方法来模仿音频信号在实际网络环境下可能遭受的各种攻击和干扰,仿真实验证明,算法具有良好的鲁棒性和不可知觉性。

关键词：音频数字水印模糊自适应心理声学模型

A high-resolution environmental change record since 19 cal ka BP in Pumoyum Co, southern Tibet

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Chinese Science Bulletin 2011年第27期56卷 2931-2940页

作者： LU XinMiao ZHU LiPing nishimura Mitsugu MORITA Yoshimune WATANABE Takahiro NAKAMURA Toshio WANG Yong Key Laboratory of Tibetan Environment Changes and Land Surce Processes Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing 100085 China School of Marine Scinece and Technology Tokai University Shizuoka 424-8610 Japan Botanical Garden Okayama University of Science Okayama 700-0005 Japan Graduate School of Science Tohoku University Sendai 980-8578 Japan Centre for Chronological Research Nagoya University Nagoya 464-8602 Japan Graduate University of Chinese Academy of Sciences Beijing 100049 China

A 380-cm-long sediment core was acquired from the deep water area of Pumoyum Co, southern Tibet. Twenty-five plant residue samples were selected, and organic carbon stable isotopes were obtained using the AMS 14 C chronological method. The 14 C age and carbon reservoir effect were calibrated with surface sedimentation rate measurements using 210 Pb dating. Results showed that the core sediment deposited over 19 cal ka BP. Based on a multi-proxy analysis of TOC and IC contents, grain size and pollen assemblage data, the palaeoclimatic evolution of Pumoyum Co was reconstructed since the last glacial. Pumoyum Co was a shallow lake prior to 16.2 cal ka BP; although the glacier around the lake began to melt due to increasing temperatures, climate was still cold and dry. In the interval of 16.2-11.8 cal ka BP, the sedimentary environment fluctuated drastically and frequently. Two cold-events occurred at 14.2 and 11.8 cal ka BP, and these may correspond to the Older Dryas and the Younger Dryas events, respectively. After 11.8 cal ka BP, Pumoyun Co developed into the deep lake as it is now. The lake water temperature was relatively lower at that time because of influx of cold water from glacial meltwater entering the lake. As a result, the multi-proxy indicators showed no sign of warm conditions. Comparisons between the sedimentary record of Pumoyum Co with that of other lakes of the same age in southern Tibet indicate a warmer climate following the last deglaciation influenced the southeastern Tibetan Plateau. These results imply that the southwest Asian monsoon gradually became stronger since the deglaciation during its expansion to the inner plateau. The glacial-supplied water of the lake responded sensitively to cold-events. The entire southern Tibet region was dominantly influenced climatically by the southwest Asian monsoon during the Holocene.

关键词：西藏南部环境变化 CAL BP 合作高分辨率青藏高原东南部古气候演变