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A verification approach for Web service compositions based on epistemic model checking

Jisuanji Xuebao/Chinese Journal of Computers 2011年第6期34卷 1041-1061页

作者： Luo, Xiang-Yu Tan, Zheng Su, Kai-Le Wu, Li-Jun College of Computer Science and Technology Huaqiao University Xiamen Fujian 361021 China School of Software Tsinghua University Beijing 100084 China No 504 Plant China National Nuclear Corporation Lanzhou 730065 China Key Laboratory of High Confidence Software Technologies of Ministry of Education Peking University Beijing 100871 China College of Mathematics Physics and Information Engineering Zhejiang Normal University Jinhua Zhejiang 321004 China School of Computer Science and Engineering University of Electronic Science and Technology Chengdu 410073 China

In recent years, the formal verification of Web service compositions is gradually becoming a hot research area. As a mainstream technique for formal verification, model checking is able to not only overcome the shortcoming of traditional software test techniques that they cannot generate the complete set of test cases, but also automatizes the verification process. In this paper, the authors propose and implement an epistemic model checking approach for the verification of Web service compositions by modeling them as multi-agent systems. After analyzing the BPEL control flow, the authors first propose a formal model for the BPEL activities and give the semantics of the implementation of the BPEL activities. By taking the so-call transition seven-tuple as the intermediate form, the authors further develop two automatic transform algorithms, one converts the BPEL process to the set of seven-tuples and the other converts this set of seven-tuples to the input language of MCTK (a model checker for multi-agent systems developed by the authors), such that can finally implement the verification by MCTK. The experimental results show that the proposed algorithms can effectively verify not only the temporal logical specifications, but also the temporal epistemic logical specifications, which are proper to multi-agent systems.

关键词： Model checking

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Performance study of complex application programs on tens of thousands cores

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Ruan Jian Xue Bao/Journal of Software 2011年第SUPPL. 2期22卷 157-162页

作者： Gao, Xing-Yu Cao, Xiao-Lin Zhao, Wei-Bo Zhang, Ai-Qing Mo, Ze-Yao High Performance Computing Center Institute of Applied Physics and Computational Mathematics Beijing 100094 China Key Laboratory of Science and Technology for National Defense Institute of Applied Physics and Computational Mathematics Beijing 100094 China

Oriented to the large-scale computation on tens of thousands cores, the parallel software infrastructure named JASMIN has released a new version which has improved the enabling techniques and numerical algorithms. With downward compatible programming interfaces, the new version can enhance the scalability of the programs free of application users' effort. To investigate the scalability of the programs based on JASMIN, we test and analyze the performance of five complex application programs on tens of thousands cores of TH-1A supercomputer. These programs were developed for the high-performance computation arising from inertial confinement fusion, material science as well as the high-power microwave. It is shown that four programs achieve a parallel efficiency of over 60% on 42,000 cores and three ones achieve a parallel efficiency of over 45% on 84,000 cores. ©2011 Journal of Software.

关键词： Application programs

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Potential Predictability of Sea Surface Temperature in a Coupled Ocean-Atmosphere GCM

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Advances in Atmospheric sciences 2010年第4期27卷 921-936页

作者：严厉王盘兴俞永强李立娟王斌 Institute of Atmospheric Sciences Nanjing University of Information Science & Technology National Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences

Using the Flexible Global Ocean-Atmosphere-Land System model （FGOALS） version g1.11, a group of seasonal hindcasting experiments were carried out. In order to investigate the potential predictability of sea surface temperature （SST）, singular value decomposition （SVD） analyses were applied to extract dominant coupled modes between observed and predicated SST from the hindcasting experiments in this study. The fields discussed are sea surface temperature anomalies over the tropical Pacific basin （20~0S-20~0N, 120~0E- 80~0W）, respectively starting in four seasons from 1982 to 2005. On the basis of SVD analysis, the simulated pattern was replaced with the corresponding observed pattern to reconstruct SST anomaly fields to improve the ability of the simulation. The predictive skill, anomaly correlation coefficients （ACC）, after systematic error correction using the first five modes was regarded as potential predictability. Results showed that： 1） the statistical postprocessing approach was effective for systematic error correction; 2） model error sources mainly arose from mode 2 extracted from the SVD analysis-that is, during the transition phase of ENSO, the model encountered the spring predictability barrier; and 3） potential predictability （upper limits of predictability） could be high over most of the tropical Pacific basin, including the tropical western Pacific and an extra 10-degrees region of the mid and eastern Pacific.

关键词： coupled GCM hindcasting experiments SST singular value decomposition potential pre-dictability

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test of the hadronic interaction models at around *10 TeV with Tibet EAS core data

Test of the hadronic interaction models at around *10 TeV wi...

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32nd International Cosmic Ray Conference, ICRC 2011

作者： Amenomori, M. Bi, X.J. Chen, D. Chen, W.Y. Cui, S.W. Luobu, Danzeng Ding, L.K. Ding, X.H. Feng, C.F. Feng, Zhaoyang Feng, Z.Y. Gou, Q.B. Guo, H.W. Guo, Y.Q. He, H.H. He, Z.T. Hibino, K. Hotta, N. Hu, Haibing Hu, H.B. Huang, J. Li, W.J. Jia, H.Y. Jiang, L. Kajino, F. Kasahara, K. Katayose, Y. Kato, C. Kawata, K. Ciren, Laba Le, G.M. Li, A.F. Liu, C. Liu, J.S. Lu, H. Meng, X.R. Mizutani, K. Munakata, K. Nanjo, H. Nishizawa, M. Ohnishi, M. Ohta, I. Ozawa, S. Qian, X.L. Qu, X.B. Saito, T. Saito, T.Y. Sakata, M. Sako, T.K. Shao, J. Shibata, M. Shiomi, A. Shirai, T. Sugimoto, H. Takita, M. Tan, Y.H. Tateyama, N. Torii, S. Tsuchiya, H. Udo, S. Wang, H. Wu, H.R. Xue, L. Yamamoto, Y. Yang, Z. Yasue, S. Yuan, A.F. Yuda, T. Zhai, L.M. Zhang, H.M. Zhang, J.L. Zhang, X.Y. Zhang, Y. Zhang, Y.I. Zhang, Ying Ngzhu, Zhaxisa Zhou, X.X. Department of Physics Hirosaki University Hirosaki 036-8561 Japan Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Institute for Cosmic Ray Research University of Tokyo Kashiwa 277-8582 Japan Department of Physics Hebei Normal University Shijiazhuang 050016 China Department of Mathematics and Physics Tibet University Lhasa 850000 China Department of Physics Shandong University Jinan 250100 China Institute of Modern Physics SouthWest Jiaotong University Chengdu 610031 China Faculty of Engineering Kanagawa University Yokohama 221-8686 Japan Faculty of Education Utsunomiya University Utsunomiya 321-8505 Japan Department of Physics Konan University Kobe 658-8501 Japan Research Institute for Science and Engineering Waseda University Tokyo 169-8555 Japan Faculty of Engineering Yokohama National University Yokohama 240-8501 Japan Department of Physics Shinshu University Matsumoto 390-8621 Japan School of Information Science and Engineering Shandong Agriculture University Taian 271018 China Saitama University Saitama 338-8570 Japan National Institute of Informatics Tokyo 101-8430 Japan Sakushin Gakuin University Utsunomiya 321-3295 Japan Tokyo Metropolitan College of Industrial Technology Tokyo 116-8523 Japan Max-Planck-Institut Für Physik München D-80805 Germany College of Industrial Technology Nihon University Narashino 275-8576 Japan Shonan Institute of Technology Fujisawa 251-8511 Japan RIKEN Wako 351-0198 Japan School of General Education Shinshu University Matsumoto 390-8621 Japan

A hybrid experiment has been started by ASγ collaboration at Tibet, China, since May 2009, that consists of a burst-detector-grid (YAC, Yangbajing Air shower Core array) and the Tibet air-shower array (Tibet-III). The first step of YAC, called YAC-I, contains 16 detector units and observes high energy electromagnetic particles in air-shower cores within several meters from the shower axis, and Tibet-III array measures the total energy and the arrival direction of air showers. YAC-I is used to check hadronic interaction models currently used for air-shower simulations such as QGSJET, SIBYLL , EPOS etc. through the multi-parameter measurement in air-shower cores. In this paper, we used a data set collected from May 1st 2009 through February 23rd 2010 by the YAC-I. The effective live time used for the present analysis is 169.65 days. The preliminary results of the interaction model checking at *10 TeV energy region is reported in this paper.

关键词： Cosmic rays

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Air-shower core detector array to study the mass composition of cosmic rays beyond 100 TeV by Tibet hybrid experiment

Air-shower core detector array to study the mass composition...

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32nd International Cosmic Ray Conference, ICRC 2011

作者： Amenomori, M. Bi, X.J. Chen, D. Chen, W.Y. Cui, S.W. Danzengluobu Ding, L.K. Ding, X.H. Feng, C.F. Feng, Zhaoyang Feng, Z.Y. Gou, Q.B. Guo, H.W. Guo, Y.Q. He, H.H. He, Z.T. Hibino, K. Hotta, N. Hu, Haibing Hu, H.B. Huang, J. Li, W.J. Jia, H.Y. Jiang, L. Kajino, F. Kasahara, K. Katayose, Y. Kato, C. Kawata, K. Labaciren Le, G.M. Li, A.F. Liu, C. Liu, J.S. Lu, H. Meng, X.R. Mizutani, K. Munakata, K. Nanjo, H. Nishizawa, M. Ohnishi, M. Ohta, I. Ozawa, S. Qian, X.L. Qu, X.B. Saito, T. Saito, T.Y. Sakata, M. Sako, T.K. Shao, J. Shibata, M. Shiomi, A. Shirai, T. Sugimoto, H. Takita, M. Tan, Y.H. Tateyama, N. Torii, S. Tsuchiya, H. Udo, S. Wang, H. Wu, H.R. Xue, L. Yamamoto, Y. Yang, Z. Yasue, S. Yuan, A.F. Yuda, T. Zhai, L.M. Zhang, H.M. Zhang, J.L. Zhang, X.Y. Zhang, Y. Zhang, Y.I. Zhang, Ying Zhaxisangzhu Zhou, X.X. Department of Physics Hirosaki University Hirosaki 036-8561 Japan Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Institute for Cosmic Ray Research University of Tokyo Kashiwa 277-8582 Japan Department of Physics Hebei Normal University Shijiazhuang 050016 China Department of Mathematics and Physics Tibet University Lhasa 850000 China Department of Physics Shandong University Jinan 250100 China Institute of Modern Physics SouthWest Jiaotong University Chengdu 610031 China Faculty of Engineering Kanagawa University Yokohama 221-8686 Japan Faculty of Education Utsunomiya University Utsunomiya 321-8505 Japan Department of Physics Konan University Kobe 658-8501 Japan Research Institute for Science and Engineering Waseda University Tokyo 169-8555 Japan Faculty of Engineering Yokohama National University Yokohama 240-8501 Japan Department of Physics Shinshu University Matsumoto 390-8621 Japan School of Information Science and Engineering Shandong Agriculture University Taian 271018 China Saitama University Saitama 338-8570 Japan National Institute of Informatics Tokyo 101-8430 Japan Sakushin Gakuin University Utsunomiya 321-3295 Japan Tokyo Metropolitan College of Industrial Technology Tokyo 116-8523 Japan Max-Planck-Institut Für Physik München D-80805 Germany College of Industrial Technology Nihon University Narashino 275-8576 Japan Shonan Institute of Technology Fujisawa 251-8511 Japan RIKEN Wako 351-0198 Japan School of General Education Shinshu University Matsumoto 390-8621 Japan

New air-shower core detector YAC has been developed to measure cosmic-ray mass composition around the energy region of the knee. Prototype experiment YAC1 was successfully carried out in 2009-2010 together with Tibet III air-shower array. Enlarged installation YAC2 is also under construction and will be operated in fall 2011. Preliminary result of YAC1 and performance of YAC2 are presented in this paper. The test of interaction models currently used in air-shower simulation was made using YAC1 results. Burst size flux predicted by QGSJET2 and SIBYLL models are compatible with data of YAC1 while QGSJET1 predicts 20 % lower flux and EPOS does 30 % lower flux. Proton flux was derived from YAC1 data based on QGSJET2 model and it is smoothly connected with direct observation data at lower energies and also with previously reported our works at higher energies.

关键词： Cosmic rays

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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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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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