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5th International Conference on Systems, ICONS 2010

作者： Huang, Ping Hu, Xiao-Mian State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology Beijing 100081 China National Key Laboratory of Computational Physics Institute of Applied Physics and Computational Mathematics Beijing 100088 China

ISBN: (纸本)9780769539805

Aiming at verifying the performance of the designed anti-explosion shell of primary explosive powder transport device, the explosion load of the shell was simulated by using DYNA software. Under the condition of without filling medium, the explosion load of Pb(N3)2 was simulated whose mass are 211g and 250g respectively. Under the condition of with filling medium, the mass of Pb(N3)2 are 250g and 300g, the calculated and experimental values are consistent. The results showed that the calculation methods and boundary conditions are feasible. © 2010 IEEE.

关键词： Explosions

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numerical Simulation on Explosion Load of Transportation Device for Primary Explosive Powder

Numerical Simulation on Explosion Load of Transportation Dev...

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ICONS International Conference on Systems

作者： Ping Huang Xiao-mian Hu State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology Beijing China Institute of Applied Physics and Computational Mathematics National Key Laboratory of Computational Physics Beijing China

Aiming at verifying the performance of the designed anti-explosion shell of primary explosive powder transport device, the explosion load of the shell was simulated by using DYNA software. Under the condition of without filling medium, the explosion load of Pb(N 3 ) 2 was simulated whose mass are 211 g and 250 g respectively. Under the condition of with filling medium, the mass of Pb(N 3 ) 2 are 250 g and 300 g, the calculated and experimental values are consistent. The results showed that the calculation methods and boundary conditions are feasible.

关键词： numerical simulation Explosions Transportation Explosives Powders Filling Arithmetic Steel Lagrangian functions Laboratories

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Room-Temperature Implementation of the Deutsch-Jozsa Algorithm with a Single Electronic Spin in Diamond

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Physical Review Letters 2010年第4期105卷 040504-040504页

作者： Fazhan Shi Xing Rong Nanyang Xu Ya Wang Jie Wu Bo Chong Xinhua Peng Juliane Kniepert Rolf-Simon Schoenfeld Wolfgang Harneit Mang Feng Jiangfeng Du Hefei National Laboratory for Physics Sciences at Microscale and Department of Modern Physics University of Science and Technology of China Hefei 230026 China Institut für Experimentalphysik Freie Universität Berlin Arnimallee 14 14195 Berlin Germany State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences Wuhan 430071 China

The nitrogen-vacancy defect center (N−V center) is a promising candidate for quantum information processing due to the possibility of coherent manipulation of individual spins in the absence of the cryogenic requirement. We report a room-temperature implementation of the Deutsch-Jozsa algorithm by encoding both a qubit and an auxiliary state in the electron spin of a single N−V center. By thus exploiting the specific S=1 character of the spin system, we demonstrate how even scarce quantum resources can be used for test-bed experiments on the way towards a large-scale quantum computing architecture.

关键词： Room temperature

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Experimental Studies of Low-Pressure Plasma Jet by Means of Langmuir Probes and Emission Spectra

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Plasma science and technology 2009年第3期11卷 307-313页

作者：刘磊曹金祥牛田野王亮孟刚刘鑫袁雷邬润辉张生俊任爱民 Key Laboratory of Basic Plasma Physics Chinese Academy of Sciencesand Department of Modern PhysicsUniversity of Science and Technology of China China Academy of Space Technology Test Physics & Numerical Mathematics Laboratory

An investigation was made into the argon plasma jet that expanded in a low-pressure vacuum chamber. The spatial distributions of the parameters of the plasma jet with different supplied powers were measured using a ten-channel Langmuir probe array. The chemical species in the plasma jet were identified by emission spectroscopy. The electron excitation temperatures at two positions, 10 cm and 50 cm downstream from the nozzle exit were calculated, respectively, by the Boltzmann plot method.

关键词： plasma jet spatial distribution probe array emission spectrum

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Impacts of Cumulus Momentum Transport on MJO Simulation

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Advances in Atmospheric sciences 2009年第5期26卷 864-876页

作者：凌健李崇银贾小龙 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Graduate University of the Chinese Academy of Sciences Institute of Meteorology PLA University of Science and Technology National Climate Center

Vertical cumulus momentum transport is an important physical process in the tropical atmosphere and plays a key role in the evolution of the tropical atmospheric system. This paper focuses on the impact of the vertical cumulus momentum transport on Madden-Julian Oscillation （MJO） simulation in two global climate models （GCMs）. The Tiedtke cumulus parameterization scheme is applied to both GCMs [CAM2 and Spectral Atmospheric general circulation Model of LASG/IAP （SAMIL）]. It is found that the MJO simulation ability might be influenced by the vertical cumulus momentum transport through the cumulus parameterization scheme. However, the use of vertical momentum transport in different models provides different results. In order to improve model＇s MJO simulation ability, we must introduce vertical cumulus momentum transport in a more reasonable way into models. Furthermore, the coherence of the parameterization and the underlying model also need to be considered.

关键词： Madden Julian Oscillation vertical cumulus momentum transport propagation characteristics

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Climate-Vegetation Interannual Variability in a Coupled Atmosphere-Ocean-Land Model

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Advances in Atmospheric sciences 2009年第3期26卷 599-612页

作者：智海王盘兴丹利俞永强徐永福郑伟鹏 Nanjing University of Information Science and Technology Nanjing 210044 The National Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029 START Regional Center for Temperate East Asia and Key Laboratory of Regional Climate-Environmentfor Temperate East Asia Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029 The State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029

The coupled models of both the Global Ocean-Atmosphere-Land System （GOALS） and the Atmosphere- Vegetation Interaction Model （GOALS-AVIM） are used to study the main characteristics of interannual variations. The simulated results are also used to investigate some significant interannual variability and correlation analysis of the atmospheric circulation and terrestrial ecosystem. By comparing the simulations of the climate model GOALS-AVIM and GOALS, it is known that the simulated results of the interannual variations of the spatial and temporal distributions of the surface air temperatures and precipitation are generally improved by using AVIM in GOALS-AVIM. The interannual variation displays some distinct characteristics of the geographical distribution. Both the Net Primary Production （NPP） and the Leap Area Index （LAI） have quasi 1-2-year cycles. Meanwhile, precipitation and the surface temperatures have 2-4- year cycles. Conditions when the spectrum density values of GOALS are less than those of GOALS-AVIM, tell us that the model coupled with AVIM enhances the simulative capability for interannual variability and makes the annual cycle variability more apparent. Using Singular Value Decomposition （SVD） analysis, the relationship between the ecosystem and the atmospheric circulation in East Asia is explored. The result shows that the strengthening and weakening of the East Asian monsoon, characterized by the geopotential heights at 500 hPa and the wind fields at 850 hPa, correspond to the spatiotemporal pattern of the NPP. The correlation between NPP and the air temperature, precipitation and solar radiation are different in interannual variability because of the variation in vegetation types.

关键词： interannual variability net primary production atmosphere-vegetation interaction model twoway interaction

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Linkage Between Mei-yu Precipitation and North Atlantic SST on the Decadal Timescale

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Advances in Atmospheric sciences 2009年第1期26卷 101-108页

作者：顾薇李崇银王鑫周文李维京 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029 National Climate Center China Meteorological Administration Beijing 100081 Meteorological College PLA University of Science and Technology Nanjing 211101 City U-IAP Laboratory for Atmospheric SciencesDepartment of Physics & Materials Science City University of Hong Kong Hong Kong

This paper investigates the relationship between mei-yu and North Atlantic sea surface temperature anomalies （SSTA）. Results show that they are significantly associated with each other on the decadal timescale. Both mei-yu precipitation and mei-yu duration are characterized by significant decadal variability. Their decadal components are closely correlated with a triple mode of North Atlantic SSTA in the preceding winter. Regression analysis demonstrates that the wintertime North Atlantic SSTA may impose a delayed impact on East Asia Summer Monsoon （EASM） circulation and mei-yu on the decadal timescale. The persistency of SSTA plays an important role during this course. The triple SSTA mode can persist from winter until late spring. It is suggested that the springtime SSTA may excite a stationary wave-train propagating from west Eurasia to East Asia and exert an impact on mei-yu.

关键词： mei-yu decadal North Atlantic SSTA

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Perturbed solution of sea-air oscillator for the El Nino/ La Nina-Southern Oscillation mechanism

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Acta Oceanologica Sinica 2009年第3期28卷 1-4页

作者： ZHOU Xianchun LIN Yihua WANG Hui MO Jiaqi College of Electronic and Information Engineering Nanjing University of information Science and Technology Nanjing 210044 China Division of Computational Science E-Institutes of Shanghai Universities at SJTU Shanghai 200240 China State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China National Marine Environmental Forecastins Center Beijing 100081 China Department of Mathematics Anhui Normal University Wuhu 241000 China

A class of coupled system of the E1 Nino/La Nina-Southern Oscillation （ENSO） mechanism is studied. Using the perturbed theory, the asymptotic expansions of the solution for ENSO model are obtained and the asymptotic... 详细信息

关键词： nonlinear perturbation theory E1 Nino/La Nina-Southern Oscillation model

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Failure mechanism of Sn3.0Ag0.5Cu flip-chip solder joints under electric current stress

Failure mechanism of Sn3.0Ag0.5Cu flip-chip solder joints un...

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2009 16th IEEE International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2009

作者： Lu, Yu-Dong He, Xiao-Qi En, Yun-Fei Wang, Xin China Electronic Product Reliability and Environmental Test Research Institute P.O.Box 1501-05 Guangzhou 510610 China 5th Electronics Research Institute Ministry of Information Industry National Key Laboratory for Reliability Physics and Its Application Guangzhou 510610 China Key Laboratory of Specially Functional Materials College of Materials Science and Engineering South China University of Technology Guangzhou 510640 China

ISBN: (纸本)9781424439102

Electromigration in flip-chip bumps of Sn3.0AgO.5Cu, has been studied at current density of 2.03l04 A/cm2• Three, potential failure modes induced by electromigration in SnAgCu, flip-chip bumps were investigated in terms of microstructural, evolution. According to IPC standard or U.S. Military Standard, (MIL-STD), all theses three kinds of damages would be determined, failure in failure-analysis procedures for microcircuits © 2009 IEEE.

关键词： Electromigration

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numerical simulation of impacts of two kinds of El Nino events on East Asian climate variability

Numerical simulation of impacts of two kinds of El Nino even...

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第九届全球海洋遥感大会(The 9th Pan Ocean Remote Sensing Conference PORSEC2008)

作者： Xuguang SUN Xiuqun YANG Yimin ZHU Shanshan ZHAO Dongqing LIU National Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina100029 Department of Atmospheric SciencesNanjing UniversityNanjingChina210093 Institute of MeteorologyPLA University of Science and TechnologyNanjingChina211101 National Climate CenterChina Meteorological AdminstrationBeijingChina100081 Department of Atmospheric Sciences Nanjing UniversityNanjingChina210093

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