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The April 14th, 2010 Yushu earthquake, a devastating earthquake with foreshocks

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Science china Earth Sciences 2010年第6期53卷 791-793页

作者： NI SiDao1, WANG WeiTao2 & LI Li3 1 School of Earth and Space Sciences, University of Science and Technology of china, Hefei 230026, china 2 institute of Geophysics, china Earthquake Administration, beijing 100081, china 3 National Earthquake Infrastructure Service, china Earthquake Administration, beijing 100036, china 1. School of Earth and Space Sciences University of Science and Technology of China Hefei 230026 China2. Institute of Geophysics China Earthquake Administration Beijing 100081 China3. National Earthquake Infrastructure Service China Earthquake Administration Beijing 100036 China

In the early morning of April 14th, 2010, a strong earth- quake (Ms7.1, http://***; Mw6.9, http://neic. ***) occurred in Yushu district, Qinghai Province, china. More than 2000 lives were lost and over 100000 injured,

关键词： Figure Yushu earthquake a devastating earthquake with foreshocks The April 14th 2010 very than

Sea surface temperature east of Australia:A predictor of tropical cyclone frequency over the western North Pacific?

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Chinese Science Bulletin 2011年第2期56卷 196-201页

作者： ZHOU BoTao 1,2 & CUI Xuan 3 1 National Climate Center,china Meteorological Administration,beijing 100081,china 2 Nansen-Zhu International Research Center,institute of Atmospheric Physics,Chinese Academy of Sciences,beijing 100029,china 3 National Meteorological Center,china Meteorological Administration,beijing 100081,china National Climate Center China Meteorological Administration Beijing China Nansen-Zhu International Research Center Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China National Meteorological Center China Meteorological Administration Beijing China

The relationship between sea surface temperature (SST) east of Australia and tropical cyclone frequency over the western North Pacific (WNPTCF) is analyzed by use of observation *** WNPTCF from June to October is correlated negatively to spring SST east of *** the spring SST is in the positive phase,a cyclonic circulation anomaly in the upper troposphere and an anticyclonic circulation anomaly in the lower troposphere prevail over the western North Pacific from June to October,concurrent with an anomalous atmospheric subsidence and an enlarged vertical zonal wind *** conditions are unfavorable for tropical cyclone genesis,and thus WNPTCF *** negative phase of the spring SST east of Australia leads to more tropical cyclones over the western North *** spring SST east of Australia may give rise to simultaneous change in tropical atmospheric circulation via the teleconnection wave train,and then subsequently affect atmospheric circulation variation over the western North Pacific.

关键词：热带气旋北太平洋澳大利亚西部海面温度热带大气环流预测频率

Zircon and apatite fission track analyses on mineralization ages and tectonic activities of Tuwu-Yandong porphyry copper deposit in northern Xinjiang, china

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Science china Earth Sciences 2007年第12期50卷 1787-1795页

作者： YUAN WanMing1,BAO ZengKuan2,DONG JinQuan2,GUO ZhaoJie3 & DENG Jun1 1 State Key Laboratory of Geological Processes and Mineral Resources,china University of Geosciences,beijing100083,china 2 Laboratory of Nuclear Analysis Techniques,institute of High energy Physics,Chinese Academy of Sciences,beijing 100039,china 3 Department of Geology,Peking University,beijing 100871,china 1. State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Beijing 100083 China 2. Laboratory of Nuclear Analysis Techniques Institute of High Energy Physics Chinese Academy of Sciences Beijing 100039 China 3. Department of Geology Peking University Beijing 100871 China

The mineralization ages reported in the past in the Tuwu-Yandong copper district not only are different,but also fall into the Hercynian *** study has achieved 9 zircon and 7 apatite fission track analysis *** zircon fission track ages range from 158 Ma to 289 Ma and the apatite ages are between 64 Ma and 140 *** mineralization accords with the regional tectonics in the copper *** consider that the zircon fission track age could reveal the mineralization age based on annealing zone temperature of 140―300℃ and retention temperature of ～250℃ for zircon fission track,and metallogenetic temperature of 120―350℃ in this ore *** three mineralization epochs have been identified,i.e.,289―276 Ma,232―200 Ma and 165―158 Ma,and indicate occurrence of the min-eralization in the Indosinian and Yanshan *** to apatite fission track ages,the three tectonic-mineralizing epochs are 140―132 Ma,109―97 Ma and 64 Ma,which means age at about 100℃ after the *** three epochs lasted 146 Ma,108 Ma and about 100 Ma from ～250℃ to ～100℃ and trend decrease from early to *** is shown by the fission track modeling that this district underwent three stages of geological thermal histories,stable in Cretaceous and cooling both before Cretaceous and after 20 Ma.

关键词： mineralization age, tectonic epoch, fission track, zircon, apatite, Tuwu-Yandong, Xinjiang

Calculation of triaxial superdeformation in ^(174)Hf

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Science china(Physics,Mechanics & Astronomy) 2007年第5期50卷 553-557页

作者： YU ShaoYing1,2,4, LI XiaoWei2, SHEN CaiWan1,5 & CHEN YongShou3,4 1 School of Science, Huzhou Teachers College, Huzhou 313000, china 2 College of Mathematics, Physics and Information Engineering, Zhejiang Normal University, Jinhua 321000, china 3 china institute of atomic energy, beijing 1024.3, china 4 institute of Theoretical Physics, Chinese Academy of Sciences, beijing 100080, china 5 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, china 1. School of Science Huzhou Teachers College Huzhou 313000 China 2. College of Mathematics Physics and Information Engineering Zhejiang Normal University Jinhua 321000 China 4. institute of Theoretical Physics Chinese Academy of Sciences Beijing 100080 China 5. Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator of Lanzhou Lanzhou 730000 China 3. china institute of atomic energy Beijing 102413 China

A two-dimensional Total Routhian Surface (TRS) calculation with the fixed hexa- decapole deformation ε4 = 0.03 was carried out for several configurations of 174Hf. Results indicate that the shell corrections have an important contribution to the formation of triaxial superdeformation in 174Hf and some possible configuration assignments are made to the 4 TSD bands experimentally found in 174Hf.

关键词： Total Routhian Surface (TRS), triaxial superdeformation, configuration

NONEQUILIBRIUM STATISTICAL THEORY OF FATIGUE FRACTURE (Ⅱ)——FROM MICROSCOPIC MECHANISM TO MACROSCOPIC PROPERTIES OF FATIGUE FRACTURE

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中国科学A辑(英文版) 1986年第12期29卷 1318-1333页

作者：邢修三 institute of atomic energy beijing

The stochastic evolution equation of microcracks is given. The microcrack density distribution function is obtained on the basis of dislocation mechanism. The fatigue fracture probability, reliability, σ_a-N curves,... 详细信息

关键词： fatigue deviation stochastic Probability dislocation quantities latter brittle hardening infinite

Complete multiple round quantum dense coding with quantum logical network

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Chinese Science Bulletin 2007年第9期52卷 1162-1165页

作者： LI ChunYan1,2,LI XiHan1,2,DENG FuGuo1,2,3,ZHOU Ping1,2 & ZHOU HongYu1,2,3 1 Key Laboratory of Beam Technology and Material Modification of Ministry of Education,beijing Normal University,beijing 100875,china 2 institute of Low energy Nuclear Physics,and Department of Material Science and Engineering,beijing Normal University,beijing 100875,china 3 beijing Radiation Center,beijing 100875,china Key Laboratory of Beam Technology and Material Modification of Ministry ofEducation Beijing Normal University Beijing 100875 China

We present a complete multiple round quantum dense coding scheme for improving the source ca-pacity of that introduced recently by Zhang et al. The receiver resorts to two qubits for storing the four local unitary ope... 详细信息

关键词：量子通信多重量子紧凑编码量子逻辑网络量子纠缠

Implications of micro-compositions of garnet and biotite from high-grade meta-pelites

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Progress in Natural Science:Materials International 2006年第2期16卷 209-214页

作者： ZHOU Xiwen, WEI Chunjing, and ZHANG Shangkun ( institute of Geology, CAGS, beijing 100037, china School of Earth and Space Sciences, Peking University, beijing 100871, china china University of Geo-Sciences, beijing 100083, china) institute of Geology CAGS Beijing 100037 China School of Earth and Space Sciences Peking University Beijing 100871 China china University of Geo-Sciences Beijing 100083 China

Based on detailed studies on the compositional zoning of garnet and biotite in pelitic rocks from the Jingshan group of granulite facies in north Jiaodong, P-T pseudosections with isopleths of Fe/(Fe + Mg) in garnet and biotite were calculated in the KF-MASH system for two representative rocks of sillimanite-garnet-cordierite-biotite gneiss ( Vbi/ Vg>1 ) and sillimanite-garnet gneiss (Vbi/ Vg 1 can nearly preserve their peak compositions, and biotites in garnet-rich rocks with Vbi/Vg<0. 2 cannot preserve their peak compositions due to the influence of grain-boundary fluid.

关键词： high-grade meta-pelites THERMOCALC P-T pseudosection peak compositions of garnet and biotite.

Designing appropriate heat treatment temperature for LaNi_(3.8)Al_(0.75)Mn_(0.45) alloy

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Rare Metals 2006年第z1期25卷 243-246页

作者： JIANG Yuwei LIU Xiaopeng JIANG Lijun WANG Shumao YANG Hongguang institute for energy Material and Technology General Research Institute for Non-Ferrous MetalBeijing 100088China china institute of atomic energy Beijing 102413China

The effect of heat treatment on microstructure,equilibrium hydrogen sorption pressure and plateau slope of LaNi_(3.8)Al_(0.75)Mn_(0.45) alloy was investigated.X-ray diffraction(XRD)analysis indicates that annealed alloys have single phase and the same hexagonal structure as that of LaNi_(5) alloy(CaCu_(5) type,P6/mmm).The cell parameters of alloys fluctuate with the increasing annealing *** equilibrium hydrogen pressure and plateau slope are a parabola function with annealing temperature for LaNi_(3.8)Al_(0.75)Mn_(0.45) *** this relationship,an appropriate heat treatment temperature for LaNi_(3.8)Al_(0.75)Mn_(0.45) alloy is determined to about 1220-1230 K by mathematic simulation ***,the maximum hydrogen storage capacity of alloys does not affected by the annealing temperature.

关键词： La-Ni-Al alloy heat treatment hydrogen storage alloy plateau slope

Comparisons of Limit Analysis Solutions and Random Search Solutions on Slope Critical Slip Surface

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Communications in Nonlinear Science and Numerical Simulation 1998年第2期3卷 14-19页

作者： Jianfeng WANG (LNM, institute of Mechanics, CAS, beijing 100080, china) LNM Institute of Mechanics CAS Beijing 100080 China

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ＩｎｔｒｏｄｕｃｔｉｏｎＤｅｓｐｉｔｅｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｅｌａｓｔｉｃｐｌａｓｔｉｃｖｉｓｃｏｕｓｎｕｍｅｒｉｃａｌｍｅｔｈｏｄｓｆｏｒｔｈｅａｎａｌｙｓｉｓｏｆｓｌｏｐｅｓ，ｔｒａｄｉｔｉｏｎａｌｔｅｃｈｎｉｑｕｅｓｂａｓｅｄｏｎ...

关键词： limit state analysis upper bound theorem random searching slip surface slope stability plasticity