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Sr,Nd,Ce,O ISOTOPES AND TRACE ELEMENT GEOChEMISTRY OF CENOZOIC VOLCANIC ROCKS,KANGSULAKE,YUTIAN COUNTY,XINJIANG

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Chinese Science Bulletin 1990年第17期35卷 1450-1454页

作者：刘丛强解广轰 S.NAKAI h.shimizu A.MASUDA Institute of Geochemistry Academia Sinica Guizhou 550002 PRC Laboratory for REE Microanalysis Department of Chemistry Faculty of Science University of Tokyo Hongo Tokyo 113 Japan

Ⅰ. GEOLOGYSamples studied were collected by LUO Xiang-jun from Kangsulake, Yutiantown. Geology of this area has been given by LIU Jia-qi. Two lava layers can be recognized. The upper layer is 1.1 Ma BP and the lower is 1.4 Ma BP (LUO Xiang-jun, personal communication, 1987). A K-Ar age of 1.24 Ma was obtained by the authors (1988), which is in agreement with the result reported by LIU Jia-qi.

关键词： isotope volcanic rocks mantle Xinjiang.

Numerical modeling for the coupled thermo-mechanical processes and spalling phenomena in sp Pillar Stability Experiment (APSE)

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Journal of Rock Mechanics and Geotechnical Engineering 2013年第1期5卷 58-72页

作者： T.Koyama M.Chijimatsu h.shimizu S.Nakama T.Fujita A.Kobayashi Y.Ohnishi Department of Urban Management Kyoto University hazama Corporation Institute of Fluid Science Tohoku University Japan Atomic Energy Agency (JAEA) Faculty of Environmental and Urban Engineering Kansai University Kyoto University

In this paper, the coupled thermo-mechanical （TM） processes in the AEspoe Pillar Stability Experiment （APSE） carried out by the Swedish Nuclear Fuel and Waste Management Company （SKB） were simulated using both continuum and discontinuum based numerical methods. Two-dimensional （2D） and three- dimensional （3D） finite element method （FEM） and 2D distinct element method （DEM） with particles were used. The main objective for the large scale in situ experiment is to investigate the yielding strength of crystalline rock and the formation of the excavation disturbed/damaged zone （EDZ） during excavation of two boreholes, pressurizing of one of the boreholes and heating. For the DEM simulations, the heat flow algorithm was newly introduced into the original code. The calculated stress, displacement and temperature distributions were compared with the ones obtained from in situ measurements and FEM simulations. A parametric study for initial microcracks was also performed to reproduce the spalling phenomena observed in the APSE.

关键词： Coupled thermo-mechanical (TM)processesAspoe Pillar Stability Experiment (APSE)Excavation disturbed/damaged zone (EDZ)Finite element method (FEM)Distinct element method (DEM)

硅质沉积岩的La-Ce和Sm-Nd分馏系列——沉积过程中海洋环境的标志

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地质地球化学 1993年第2期21卷 36-39页

作者： h. shimizu 李建明江汉石油学院地质系

为了说明硅质沉积岩(燧石)中稀土元素(REE)源的特征及其沉积环境的性质,测定了有关的La-Ce同位素和Sm-Nd同位素数据。所研究的燧石为西澳大利亚皮尔巴拉断块中乔治克里克群的晚太古宙燧石、日本中部的三叠纪燧石和太平洋中部以及加勒比... 详细信息

为了说明硅质沉积岩(燧石)中稀土元素(REE)源的特征及其沉积环境的性质,测定了有关的La-Ce同位素和Sm-Nd同位素数据。所研究的燧石为西澳大利亚皮尔巴拉断块中乔治克里克群的晚太古宙燧石、日本中部的三叠纪燧石和太平洋中部以及加勒比海白垩纪和早第三纪深海燧石。采自乔治克里克群的太古宙燧石,显示出在其沉积年代里具有球粒陨石的Ce和Nd同位素比值,这表明其源区有一个随时间积分的球粒陨石REE模式。采自日本的三叠纪燧石,具有表明直接来源于陆源的初始Ce和Nd同位素比值。另一方面,对REE模式中出现负异常的白垩纪和早第三纪的深海燧石来说,其初始Ce和Nd同位素比值揭示出有两个不同的来源:Ce来自轻稀土元素(LREE)长期亏损的大洋火山岩,而Nd来自LREE富集的大陆岩石。据认为,从深海燧石中所观测到的相反的性质是其沉积环境远离大陆的反映。这些结果证实,La-Ce同位素体系在确定海洋沉积物(如燧石)中所观测到的异常性质和成因方面非常有用。

关键词：沉积岩硅质镧铈钐钕

Space–time finite element method with domain reduction techniques for dynamic soil–structure interaction problems

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International Journal of Mechanical System Dynamics 2024年第2期4卷 117-130页

作者： Vikas Sharma Shion shimizu Kazunori Fujisawa Division of Environmental Science and Technology Graduate School of AgricultureKyoto UniversityKyotoJapan

Design of earth structures,such as dams,tunnels,and embankments,against the vibrational loading caused by high-speed trains,road traffic,underground explosions,and,more importantly,earthquake motion,demands solutions of the dynamic soil–structure Interaction(SSI)*** paper presents a velocity-based space–time finite element procedure,v-ST/finite element method(FEM),to solve dynamic SSI *** main goal of this study is to present the computation details of implementing viscous boundary conditions of Lysmer–Kuhlemeyer to truncate the unbounded soil ***,additional time-dependent boundary conditions,in terms of the free-field response,are included to facilitate energy flow from the far field to the computation domain at the vertical truncated *** the FEM,seismic input motion is applied to an effective nodal force vector,which can be obtained explicitly in the numerical ***,the response of a concrete gravity dam resting on an elastic half-space to the horizontal component of earthquake motion is computed and successfully compared with the results of semidiscrete FEM using the Newmark-βmethod.

关键词： absorbing boundary domain reduction FEM soil-structure interactions space-time

ThE NEW METhOD OF CEPhALOMETRIC PREDICTION TRACING FOR MAXILLARY AND MANDIBULAR ANTERIOR SEGMENTAL OSTEOTOMIES

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THE NEW METHOD OF CEPHALOMETRIC PREDICTION TRACING FOR MAXIL...

An event mixing technique for Bose-Einstein correlations of two pions in photoproduction around 1 GeV

第二届中国国际暨第五届全国口腔颌面外科学术会议

作者： Y．NOMURA h．hANDA h.shimizu G．MASUDA NOMURA ORThODONTIC OFFICE YOKOhAMA CITY KOWAN hOSPITAL JAPAN hANDA ORThODONTIC OFFICE YOKOhAMA CITY KOWAN hOSPITAL JAPAN shimizu ORThODONTIC OFFICE YOKOhAMA CITY KOWAN hOSPITAL JAPAN DEPT.OF ORAL SURGERY YOKOhAMA CITY KOWAN hOSPITAL JAPAN

Maxillary and mandibular anterior segmental osteotomies are indicated to the adult patients with anterior dentoalveolar *** the preoperative planning stage,we performed the new method of cephalometric prediction *** our method,nomarative data on the incisor position in relation to soft tissue profile was based on 20 cases after orthodontic

关键词： profile ThE NEW METhOD OF CEPhALOMETRIC PREDICTION TRACING FOR MAXILLARY AND MANDIBULAR ANTERIOR SEGMENTAL OSTEOTOMIES

来源： cnki会议评论

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Chinese Physics C 2016年第11期40卷 67-74页

作者：何庆华 h.Fujimura h.Fukasawa R.hashimoto Y.honda T.Ishikawa T.Iwata S.Kaida J.Kasagi A.Kawano S.Kuwasaki K.Maeda S.Masumoto M.Miyabe F.Miyahara K.Mochizuki N.Muramatsu A.Nakamura K.Nawa S.Ogushi Y.Okada Y.Onodera K.Ozawa Y.Sakamoto M.Sato h.shimizu h.Sugai K.Suzuki Y.Tajima S.Takahashi Y.Taniguchi Y.Tsuchikawa h.Yamazaki R.Yamazaki h.Y.Yoshida Research Center for Electron Photon Science Tohoku University Institute of Fluid Physics China Academy of Engineering Physics Department of Physics Wakayama Medical University Department of Physics Yamagata University Department of Information Science Tohoku Gakuin University Department of Physics Tohoku University Department of Physics University of Tokyo Accelerator Laboratory KEK Institute of Particle and Nuclear Studies KEK Wakasa-wan Energy Research Center

We have developed an event mixing technique to observe Bose-Einstein correlations （BEC） between two identical neutral pions produced in photo-induced reactions in the non-perturbative QCD energy region. It is found that the missing-mass consistency cut and the pion-energy cut are essential for the event mixing method to effectively extract BEC observables. A Monte Carlo （MC） simulation is used to validate these constraints and confirms the efficiency of this method. Our work paves the way for similar BEC studies at lower energies where the multiplicity of emitted bosons is limited.

关键词： Bose-Einstein correlations photoproduction event mixing

中国脊髓灰质炎Ⅱ型疫苗相关分离株病毒性状的观察

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病毒学报 1997年第4期13卷 332-338页

作者：侯晓辉张礼璧 T.Yoneyama K.Yoshii h.shimizu h.Yoshida 李杰郑红方勇朱宏 M.hara Akio hagiwara 中国预防医学科学院病毒学研究所

对１９９４年中国分离的１３株脊髓灰质炎Ⅱ型疫苗相关株进行了ＰＣＲ－ＲＦＬＰ分析，发现７株为重组病毒，毒力较疫苗株有回复。在Ⅱ型脊髓灰质炎病毒基因序列上，对于神经毒力有重要影响的第４８１位核苷酸发生了突变（Ｃ→Ｇ），另... 详细信息

对１９９４年中国分离的１３株脊髓灰质炎Ⅱ型疫苗相关株进行了ＰＣＲ－ＲＦＬＰ分析，发现７株为重组病毒，毒力较疫苗株有回复。在Ⅱ型脊髓灰质炎病毒基因序列上，对于神经毒力有重要影响的第４８１位核苷酸发生了突变（Ｃ→Ｇ），另一个被视为重要位点的第２９０８位核苷酸无一发生变化，反而在第２９０９位核苷发生了高频率的点突变，意味着２９０９位点在中国Ⅱ型疫苗相关株的自然变异中可能起着重要作用。根据转基因小鼠实验和温度敏感实验（Ｒｃｔ－ｍａｒｋｅｒ），脊髓灰质炎病毒的神经毒力大小并不与温度敏感实验所显示的毒力特征呈正相关性。

关键词：脊髓灰质炎病毒疫苗神经毒力

π~0 Photoproduction on Deuteron for Photon Energies from 0.6 to 1.15 GeV

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原子核物理评论 2009年第S1期26卷 104-108页

作者： F.Miyahara h.Fukasawa R.hashimoto T.Ishikawa M.Itoh T.Iwata h.Kanda J.Kasagi h.Kato T.Kinoshita K.Maeda M.Matsuzawa T.Michigami K.Motiduki K.Murakami T.Nakabayashi K.Nawa T.Nomura K.Okamura h.Okamura h.Okuyama Y.Onodera Y.Saito T.Sasaki h.shimizu T.Shishido S.Suzuki K.Suzuki Y.Tajima S.Takita T.Takahashi h.Ueno S.Yamaguchi h.Yamazaki h.Y.Yoshida Laboratory of Nuclear Science Tohoku University Mikamine 1-2-1 Cyclotoron and Radioisotope Center Tohoku University Department of Physics Yamagata University Department of Physics Tohoku University Research Center for Nuclear Physics Osaka University KEK

Differential and total cross sections of the γp→π0p and the γd→π0pn reaction were measured for photon energies between 640 and 1 150 MeV. The data have been compared with SAID and MAID model calculations. π0 photoproduction on the deuteron shows a strong suppression of the 2nd resonance which is clearly seen in the γp→π0p reaction.

关键词： pion photoproduction resonance

含橄榄岩套包裹体的金刚石中石榴石包裹体的微量元素丰度模式

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地球与环境 1988年第6期 51-54页

作者： N.shimizu ,S.h.Richardson ,黄灵辉广东省地质局地质矿产研究所基础室

按照定义,金刚石中的“同生矿物”包裹体是指那些与宿主金刚石一起生长的各矿物相,这些包裹体能够对大陆岩石圈的组成和历史以及金刚石的成因提供决定性的信息。对于从金伯利和芬什两处岩管中取得的“橄榄岩套”的低钙、富铬的石榴石包... 详细信息

按照定义,金刚石中的“同生矿物”包裹体是指那些与宿主金刚石一起生长的各矿物相,这些包裹体能够对大陆岩石圈的组成和历史以及金刚石的成因提供决定性的信息。对于从金伯利和芬什两处岩管中取得的“橄榄岩套”的低钙、富铬的石榴石包裹体,***-hardson等测得其Rb-Sr和Sm-Nd模式年龄为3.2—3.3Ma,延长了Kramer(1979)早些时候

关键词：石榴石 REE Cr 石榴子石宝石橄榄岩超基性岩包裹体