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Modeling and analyzing mixed communications in service-oriented trustworthy software

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science china(Information sciences) 2012年第12期55卷 2738-2756页

作者： JIANG JianMin 1,ZHANG Shi 1,GONG Ping 1,HONG Zhong 1 & YUE HouGuang 2 1 department of Computer,Fujian Normal university,Fuzhou 350007,china 2 department of Computer,Shandong university of finance and Economics,Jinan 250014,china department of Computer Fujian Normal University Fuzhou China department of Computer Shandong University of Finance and Economics Jinan China

Communication is an essential part of service-oriented trustworthy *** actual communication mechanism among services adopts asynchronous communications and supports broadcast ***,in order to achieve a better performance in analysis and verification,most existing formal languages rely on the strong hypothesis:the communication between services is *** this paper,we propose a novel model,which can model synchronous communications,asynchronous communications and broadcast communications in a uniform ***,we investigate the preservation problem of the weak termination and deadlocks of a composite service under the hierarchical communication models.

关键词： communication service composition message dependency deadlock

Assessment and improvement of autocorrelation performance of chaotic sequences using a phase space method

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science china(Information sciences) 2011年第12期54卷 2667-2679页

作者： CHEN Bin School of Software and Communication Engineering, JiangXi university of finance and Economy, Nanchang 330032, china School of Software and Communication Engineering JiangXi University of Finance and Economy Nanchang China

Chaotic sequences have been widely used as pseudorandom sequences. However, how to judge whether their autocorrelation performance is good remains a problem because we have no simple method for assessing and improving the autocorrelation performance. Using a phase space method, we have discovered that the autocorrelation performance of a chaotic sequence is determined by whether its phase space trajectory is axis symmetrical, and have deduced theorems to describe and solve these problems. This paper presents a simple yet effective method to assess and improve the autocorrelation performance of chaotic sequences. Several simulations are presented to validate the theorems and method.

关键词： chaos autocorrelation pseudorandom sequences phase space

Dynamic Monte Carlo simulation of chain growth polymerization and its concentration effect

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science china Chemistry 2005年第5期48卷 459-465页

作者： Lü Wenqi & DING Jiandong Key Laboratory of Molecular Engineering of Polymers, department of Macromolecular science, Fudan university, Shanghai 200433, china Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai China

Free radical polymerization and living ion polymerization have been simulated via the dynamic Monte Carlo method with the bond-fluctuation model in this paper. The polymeriza-tion-related parameters such as conversion of monomers, degree of polymerization, average molecular weight and its distribution are obtained by statistics. The simulation outputs are con-sistent with the corresponding theoretical predictions. The scaling relationships of the coil size versus chain length are also confirmed at different volume fractions. Furthermore, the effect of diffusion on polymerization is revealed preliminarily in our simulation. Hence the simulation ap-proach has been proven to be feasible to investigate polymerization reactions with the advan-tages that configuration and diffusion of polymer chains can be examined together with polym-erization kinetics.

关键词： living ion polymerization free radical polymerization concentration effect configuration Monte Carlo simulation.

REMARK ON CRITICAL SPEED OF TRAVELING WAVEFRONTS FOR NICHOLSON'S BLOWFLIES EQUATION WITH DIFFUSION

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Acta Mathematica Scientia 2010年第5期30卷 1561-1566页

作者：危地吴教育梅铭 department of Information and Computation Nanchang Hangkong University School of Computer Engineering and technology Guangdong Institute of Science and Technology department of Mathematics Champlain College Saint-LambertSaint-Lambert department of Mathematics and statistics McGill University

This note is devoted to the son＇s blowflies equation with diffusion, a critical speed of traveling waves, we give behavior with respect to the mature age study on the traveling wavefronts to the Nicholtime-delayed re... 详细信息

关键词： Nicholson's blowflies equation traveling wavefronts critical wave-speed

R & D STRATEGIC INVESTMENT IN AN ASYMMETRICAL CASE

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Journal of Systems science & Complexity 2006年第4期19卷 547-557页

作者： Minggao XUE Pu GONG department of finance College of Management Huazhong University of Science and Technology Wuhan 430074 China.

This article analyzes R ＆ D investment decisions in an asymmetrical case. The investment decisions share three important characteristics. First, the investment is completely irreversible. Second, there are two kinds of uncertainties over the future returns from the investment and over technology in R ＆ D process, respectively. Third, there is strategic competition in the asymmetrical case. This article presents the optimal investment threshold values and the optimal investment rule of high-efficient firm （leader）, and shows that the investment threshold values are reduced by competition of two firms. Finally, the mixed investment strategies for two firms, the probability that each firm separately exercises the option to invest, and the probability that two firms simultaneously exercise the option are given in the paper.

关键词： Asymmetric information optimal investment threshold value option game preemption the mixed investment strategy.

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方向数据密度函数核估计的重对数律

系统科学与数学 2001年第3期21卷 264-273页

作者：王小明赵林城中国科技大学统计与金融系上海财经大学统计系上海200433

本文讨论方向数据密度函数核估计的逐点收敛速度问题，在较为温和的条件下建立了该核估计的重对数律并给出了它的逐点最优收敛速度．

关键词：方向数据密度函数核估计重对数律逐点收敛速度逐点最优收敛速度球面数据密度函数

GENERALIZED OPERATORS AND P(φ)_2 QUANTUM FIELDS

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Acta Mathematica Scientia 2004年第4期24卷 589-596页

作者：黄志远让光林 department of Mathematics Huazhong University of Science and Technology Wuhan 430074 China Mathematics and statistics school Wuhan University Wuhan 430072 China Department of Mathematics Hubei University Wuhan 430062 Chinan this paper by Sobolev imbedding theorem and characterization theorem of generalized operators the existence of P(φ)2 quantum fields as generalized operators is obtained and a rigorous mathematical interpretation of renormalization procedure is given under white noise theory.

In this paper by Sobolev imbedding theorem and characterization theorem of generalized operators the existence of P(φ)2 quantum fields as generalized operators is obtained and a rigorous mathematical interpretation o... 详细信息

关键词： White noise calculus generalized operator P(φ)2 quantum fields

A new two-mode thermo- and squeezing-mixed optical field

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Chinese Physics B 2017年第7期26卷 27-30页

作者：周军范洪义宋军 School of Electrical and Optoelectronic Engineering West Anhui university Research Center of Atmos Molecules and Optical Applications West Anhui university department of Materials science and Engineering Uiversity of science and technology of china

We propose a new two-mode thermo-and squeezing-mixed optical field, described by the new density operator ρ=1-e^f-｜g｜^2 e^ga^＋b^＋e^fa^＋a｜0〉 f_（bb）〈0｜ e^（g＊ab）, where ｜0〉_（bb）〈0｜ is the b-mode vacuum, e ^fa^＋arepresents the thermo-field, and e^ga^＋b^＋ indicates squeezing. The photon statistics for ρ is studied by virtue of the method of integration within ordered product（IWOP） of operators. Such a field can be generated when a two-mode squeezed state passes through a one-mode dissipation channel.

关键词： thermo-and squeezing-mixing new optical field photon statistics integration within ordered product(IWOP) method

A Note on the Estimation of Semiparametric Two-Sample Density Ratio Models

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Journal of Mathematical Research with Applications 2012年第2期32卷 174-180页

作者： Gang YU 1,2,,Wei GAO 3,Ningzhong SHI 3 1.School of Economics,Huazhong university of science and technology,Hubei 430074,P.R.china 2.School of Mathematics and Quantitative Economics,Dongbei university of finance and Economics,Liaoning 116025,P.R.china 3.Key Laboratory for Applied statistics of MOE and School of Mathematics and statistics,Northeast Normal university,Jilin 130024,P.R.china School of Economics Huazhong University of Science and Technology Hubei 430074 School of Mathematics and statistics Northeast Normal University Key Laboratory for Applied Statistics of MOE Jilin 130024

In this paper,a semiparametric two-sample density ratio model is considered and the empirical likelihood method is applied to obtain the parameters estimation.A commonly occurring problem in computing is that the empirical likelihood function may be a concaveconvex *** a simple Lagrange saddle point algorithm is presented for computing the saddle point of the empirical likelihood function when the Lagrange multiplier has no explicit *** we can obtain the maximum empirical likelihood estimation (MELE) of *** Carlo simulations are presented to illustrate the Lagrange saddle point algorithm.

关键词： empirical likelihood maximum empirical likelihood estimation (MELE) concaveconvex function Lagrange multiplier saddle point.