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Implementation of a new chaotic encryption system and synchronization 被引量:7
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作者 Long Min Peng Fei Qiu Shuisheng Chen Yanfeng 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第1期43-47,共5页
A new kind of secure communication system which combines the chaotic encryption means with the conventional encryption method is discussed. With the analysis results and the experiment data, the anti-attack ability of... A new kind of secure communication system which combines the chaotic encryption means with the conventional encryption method is discussed. With the analysis results and the experiment data, the anti-attack ability of this communication system is significantly improved compared to that of the either method. At the same time, a new method of chaotic synchronization is proposed. With a small mixed discrete chaotic signal, it is quickly to synchronize the communication and a good security performance is ensured. 展开更多
关键词 secure communication chaotic cryptography chaotic synchronization.
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Coordination game model of co-opetition relationship on cluster supply chains 被引量:7
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作者 Zhou Min Deng Feiqi Wu Sai 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2008年第3期499-506,共8页
The research of cluster supply chains is a new direction and a hotspot of the industrial cluster theory. On the condition of the coordination game, the enterprises may be stuck on the non-efficient equilibrium status,... The research of cluster supply chains is a new direction and a hotspot of the industrial cluster theory. On the condition of the coordination game, the enterprises may be stuck on the non-efficient equilibrium status, which becomes an important problem that must be considered on cluster supply chains. A symmetrical coordination game model is constituted to describe the competition and cooperation relationship of the same-quality manufacturers on cluster supply chains. The methods of the non-cooperation game theory and the evolutionary game theory are respectively used to analyze the model, whose parameters' influences under each method are then compared. It can be concluded that the analysis of the evolutionary game theory is more realistic and practical. Finally, three approaches are considered to break away from being path-dependence locked-in non-efficient status during this coordination game evolutionary process, which provide the development of cluster supply chains with an effective forecasting and Pareto optimizing method. 展开更多
关键词 cluster supply chains coordination game non-cooperation game theory evolutionary game theory path-dependence.
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Preparation of aqueous dispersion of epoxy curing agent with specially synthesized phase inversion emulsifier 被引量:4
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作者 周继亮 涂伟萍 胡剑青 《化工学报》 EI CAS CSCD 北大核心 2005年第10期2029-2032,共4页
关键词 相反转乳化剂 水基环氧固化剂分散体 制备方法 理化性能
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Application of periodic orbit theory in chaos-based security analysis 被引量:3
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作者 龙敏 丘水生 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第8期2254-2258,共5页
Chaos-based encryption schemes have been studied extensively, while the security analysis methods for them are still problems to be resolved. Based on the periodic orbit theory, this paper proposes a novel security an... Chaos-based encryption schemes have been studied extensively, while the security analysis methods for them are still problems to be resolved. Based on the periodic orbit theory, this paper proposes a novel security analysis method. The periodic orbits theory indicates that the fundamental frequency of the spiraling orbits is the natural frequency of associated linearized system, which is decided by the parameters of the chaotic system. Thus, it is possible to recover the plaintext of secure communication systems based on chaotic shift keying by getting the average time on the spiraling orbits. Analysis and simulation results show that the security analysis method can break chaos shift keying secure communication systems, which use the parameters as keys. 展开更多
关键词 periodic orbit theory secure communication chaos-based security analysis
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Separation of Samarium(Ⅲ)and Gadolinium(Ⅲ)by A Push-pull Liquid Membrane System 被引量:2
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作者 YANG Guang hui LI Ming yu +3 位作者 TANG Qi hong GUO Dong hong WANG Xiang de ZHANG Xiu juan 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1997年第4期121-125,共5页
SeparationofSamarium(Ⅲ)andGadolinium(Ⅲ)byAPush┐pulLiquidMembraneSystemYANGGuang-hui*(DepartmentofChemistry,E... SeparationofSamarium(Ⅲ)andGadolinium(Ⅲ)byAPush┐pulLiquidMembraneSystemYANGGuang-hui*(DepartmentofChemistry,EducationColegeofJ... 展开更多
关键词 SAMARIUM GADOLINIUM Liquid membrane SEPARATION
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NONLINEAR DRIFT MOTION SIMULATION OF MULTI-CHAIN MOORING BUOY IN TIME DOMAIN 被引量:1
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作者 Li, Yuanlin Wu, Jiaming 《China Ocean Engineering》 SCIE EI 1990年第4期397-408,共12页
This paper deals with the nonlinear effect of the drift motion of multi-chain mooring buoys. The buoy's motion in time domain is determined for the case that the wave and mooring force are nonlinear. The Kotorayam... This paper deals with the nonlinear effect of the drift motion of multi-chain mooring buoys. The buoy's motion in time domain is determined for the case that the wave and mooring force are nonlinear. The Kotorayama's method of hydrodynamic effect in a single mooring chain is expanded to multi-mooring chains. The time history of drift motion of the mooring buoy in regular waves and wave groups is calculated. The relation between the drift motion and the wave height or difference frequency is discussed. It can be shown that the effect of the hydrodynamic force acting on the mooring chain has remarkable influence on the total drift motion of the mooring buoy. In a wave group, its amplitude is mainly controled by the wave height and has little relation with difference frequency. 展开更多
关键词 Mathematical Techniques Time Domain Analysis Water Waves Wave Effects
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Construction of compact RBF network by refining coarse clusters and widths 被引量:1
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作者 Zeng Delu Zhou Zhiheng Xie Shengli 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2009年第6期1309-1315,共7页
It is known that centers, widths, and weights are three mainly considered factors in constructing a radial basis function(RBF) network.This paper aims at constructing a compact RBF network with two main steps.In the... It is known that centers, widths, and weights are three mainly considered factors in constructing a radial basis function(RBF) network.This paper aims at constructing a compact RBF network with two main steps.In the first step, the coarse clusters computed from triangle inequalities are refined to obtain the locations of centers by the defined maximum degree spanning tree(MDST).Meanwhile the coarse widths are obtained.In the second step, a learning algorithm referred to as anisotropic gradient descent method is presented to further refine the above coarse widths.Experiments of the proposed algorithm show its great performance in times series prediction and classification. 展开更多
关键词 CLUSTERING anisotropic gradient descent radial basis function time series prediction boundary extraction.
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Stability of stochastic neural networks with Markovian jumping parameters 被引量:1
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作者 Hua Mingang Deng Feiqi Peng Yunjian 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2009年第3期613-618,共6页
The global asymptotical stability for a class of stochastic delayed neural networks (SDNNs) with Maxkovian jumping parameters is considered. By applying Lyapunov functional method and Ito's differential rule, new d... The global asymptotical stability for a class of stochastic delayed neural networks (SDNNs) with Maxkovian jumping parameters is considered. By applying Lyapunov functional method and Ito's differential rule, new delay-dependent stability conditions are derived. All results are expressed in terms of linear matrix inequality (LMI), and a numerical example is presented to illustrate the correctness and less conservativeness of the proposed method. 展开更多
关键词 stochastic neural networks global asymptotical stability linear matrix inequality Markovian jumping parameters.
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Decentralized robust stabilization of discrete-time fuzzy large-scale systems with parametric uncertainties: a LMI method 被引量:1
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作者 Zhang Yougang Xu Bugong 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第4期836-845,共10页
Decentralized robust stabilization problem of discrete-time fuzzy large-scale systems with parametric uncertainties is considered. This uncertain fuzzy large-scale system consists of N interconnected T-S fuzzy subsyst... Decentralized robust stabilization problem of discrete-time fuzzy large-scale systems with parametric uncertainties is considered. This uncertain fuzzy large-scale system consists of N interconnected T-S fuzzy subsystems, and the parametric uncertainties are unknown but norm-bounded. Based on Lyapunov stability theory and decentralized control theory of large-scale system, the design schema of decentralized parallel distributed compensation (DPDC) fuzzy controllers to ensure the asymptotic stability of the whole fuzzy large-scale system is proposed. The existence conditions for these controllers take the forms of LMIs. Finally a numerical simulation example is given to show the utility of the method proposed. 展开更多
关键词 fuzzy large-scale system parametric uncertainties decentralized Parallel distributed compensation linear matrix inequalities.
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Simulation of a class of delay stochastic system with distributed parameter 被引量:1
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作者 Song Yanan Deng Feiqi Luo Qi 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2005年第4期843-846,共4页
Simulation of a class of delay stochastic system with distributed parameter is discussed. Difference schemes for the numerical computation of delay stochastic system are obtained. The precision of the difference schem... Simulation of a class of delay stochastic system with distributed parameter is discussed. Difference schemes for the numerical computation of delay stochastic system are obtained. The precision of the difference scheme and the efficiency of the difference scheme in simulation of delay stochastic system with distributed parameter are analyzed. Examples are given to illustrate the application of the method. 展开更多
关键词 SIMULATION distributed parameter delay stochastic system.
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Classification of Multiple Scattering Sequences in the Glauber Amplitude for Nucleus-Nucleus Scattering 被引量:1
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作者 Ruan, Wenying Chen, Fangzhen Duan, Yiwu 《Chinese journal of nuclear physics》 EI 1994年第1期17-20,共4页
A procedure is proposed to classify multiple scattering sequences in nucleus-nucleus scattering,with α-<sup>12</sup>C taken as an example.
关键词 GLAUBER multiple SCATTERING FOURIER transformation Matrix
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On the Solutions of the Matrix Equations in Optimal Stochastic Control
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作者 Deng, Feiqi Hu, Gang +1 位作者 Liu, Yongqing Feng, Zhaoshu 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1999年第3期38-43,共6页
In this paper, the matrix algebraic equations involved in the optimal control problem of time-invariant linear Ito stochastic systems, named Riccati- Ito equations in the paper, are investigated. The necessary and suf... In this paper, the matrix algebraic equations involved in the optimal control problem of time-invariant linear Ito stochastic systems, named Riccati- Ito equations in the paper, are investigated. The necessary and sufficient condition for the existence of positive definite solutions of the Riccati- Ito equations is obtained and an iterative solution to the Riccati- Ito equations is also given in the paper thus a complete solution to the basic problem of optimal control of time-invariant linear Ito stochastic systems is then obtained. An example is given at the end of the paper to illustrate the application of the result of the paper. 展开更多
关键词 Computational methods Control system analysis Control system synthesis Iterative methods Linear control systems Matrix algebra Optimal control systems Riccati equations
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Equilibrium solution of two enterprises cooperative game
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作者 Li Ling Deng Feiqi 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2007年第2期270-274,共5页
Based on the actual experience of cooperation in the supply chain, the Nash solution of two enterprises cooperative games is given. Not only is the solution unique, but it is also stable, and neither side has the capa... Based on the actual experience of cooperation in the supply chain, the Nash solution of two enterprises cooperative games is given. Not only is the solution unique, but it is also stable, and neither side has the capability to deviate the allocation of interests from the equilibrium point. If some firm tries to withdraw from cooperation or threaten to use other particular strategy, the negotiations are likely to achieve the distribution by the threat game; The calculating method of the choice of the optimal bargaining base point and the corresponding optimal pay-off vector are given. 展开更多
关键词 Enterprises cooperation Supply chain Cooperative game Bargaining base point Optimal pay-off vector.
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PERFORMANCE OF THREE STAGE TURBO-EQUALIZATION-DECODING
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作者 Kazi Takpaya 《Journal of Electronics(China)》 2003年第6期439-445,共7页
An increasing demand for high data rate transmission and protection over bandlimited channels with severe inter-symbol interference has resulted in a flurry of activity to improve channel equalization, In conjunction ... An increasing demand for high data rate transmission and protection over bandlimited channels with severe inter-symbol interference has resulted in a flurry of activity to improve channel equalization, In conjunction with equalization, channel coding-decoding can be employed to improve system performance. In this letter, the performance of the three stage turbo-equalization-decoding employing log maximum a posteriori probability is experimentally evaluated by a fading simulator. The BER is evaluated using various information sequence and interleaver sizes taking into account that the communication medium is a noisy inter symbol interference channel. 展开更多
关键词 Band-limited channel Inter-symbol interference Three stage turbo-equalization- decoding
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Experimental Study on Heat Transfer Enhancement of Natural Circulation Liquid Cooling System for Electronic Component
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作者 张正国 李倩侠 +1 位作者 方晓明 本田博司 《Journal of Shanghai Jiaotong university(Science)》 EI 2004年第3期83-87,共5页
The present research is an experimental study on heat transfer characteristics of a natural circulation cooling system for electronic components. A smooth chip and two micro-pin-finned chips were tested. The chip is m... The present research is an experimental study on heat transfer characteristics of a natural circulation cooling system for electronic components. A smooth chip and two micro-pin-finned chips were tested. The chip is mounted on the base of a rectangular horizontal duct located at the bottom of 250 mm high natural circulation loop.FC-72 is used as a coolant. The test conditions are set that the operation pressure of experimental system is 1. 013× 105 Pa, the flow rate of FC-72 is 150 g/min and the subcoolings are 10 K, 25 K and 35 k, respectively. Effect of the subcooling on nucleate boiling and critical heat flux(CHF) were investigated. The results show that subcoolingis found to significantly affect CHF for all chips and micro-pin-finned chips sharply enhanced the boiling heat transfer, CHF of micro-pin-finned chips are 2.5~3 times as large as that of smooth chip at the same subcooling. 展开更多
关键词 electronic component micro-pin-finned heat transfer enhancement
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DIFFUSION COUPLE BETWEEN HIGHSTRENGTH WEAR-RESISTING ALUMINUM BRONZE AND MACHINING TOOLS MATERIALS 被引量:14
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作者 Li, Yuanyuan Zhang, Datung +2 位作者 Ngai Tungwai, Leo Xia, Wei Long, Yan 《中国有色金属学会会刊:英文版》 EI CSCD 1999年第1期8-10,10+12+9+11,共5页
INTRODUCTIONAluminumbronzeisanimportantengineeringmaterial.Itsexcelentphysical,mechanical,anticorosionandw... INTRODUCTIONAluminumbronzeisanimportantengineeringmaterial.Itsexcelentphysical,mechanical,anticorosionandwearresistingprop... 展开更多
关键词 WEAR resistance ALUMINUM BRONZE tool MATERIALS DIFFUSION
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Online blind source separation based on joint diagonalization 被引量:2
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作者 Li Ronghua Zhou Guoxu Yang Zuyuan Xie Shengli 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2009年第2期229-233,共5页
A new algorithm is proposed for joint diagonalization. With a modified objective function, the new algorithm not only excludes trivial and unbalanced solutions successfully, but is also easily optimized. In addition, ... A new algorithm is proposed for joint diagonalization. With a modified objective function, the new algorithm not only excludes trivial and unbalanced solutions successfully, but is also easily optimized. In addition, with the new objective function, the proposed algorithm can work well in online blind source separation (BSS) for the first time, although this family of algorithms is always thought to be valid only in batch-mode BSS by far. Simulations show that it is a very competitive joint diagonalization algorithm. 展开更多
关键词 blind source separation joint diagonalization nonconvex optimization
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Mobile Robot Hierarchical Simultaneous Localization and Mapping Using Monocular Vision 被引量:1
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作者 厉茂海 洪炳熔 罗荣华 《Journal of Shanghai Jiaotong university(Science)》 EI 2007年第6期765-772,共8页
A hierarchical mobile robot simultaneous localization and mapping (SLAM) method that allows us to obtain accurate maps was presented. The local map level is composed of a set of local metric feature maps that are guar... A hierarchical mobile robot simultaneous localization and mapping (SLAM) method that allows us to obtain accurate maps was presented. The local map level is composed of a set of local metric feature maps that are guaranteed to be statistically independent. The global level is a topological graph whose arcs are labeled with the relative location between local maps. An estimation of these relative locations is maintained with local map alignment algorithm, and more accurate estimation is calculated through a global minimization procedure using the loop closure constraint. The local map is built with Rao-Blackwellised particle filter (RBPF), where the particle filter is used to extending the path posterior by sampling new poses. The landmark position estimation and update is implemented through extended Kalman filter (EKF). Monocular vision mounted on the robot tracks the 3D natural point landmarks, which are structured with matching scale invariant feature transform (SIFT) feature pairs. The matching for multi-dimension SIFT features is implemented with a KD-tree in the time cost of O(lbN). Experiment results on Pioneer mobile robot in a real indoor environment show the superior performance of our proposed method. 展开更多
关键词 mobile robot HIERARCHICAL simultaneous localization and mapping (SLAM) Rao-Blackwellised particle filter (RBPF) MONOCULAR vision scale INVARIANT feature TRANSFORM
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Link reliability based hybrid routing for tactical mobile ad hoc network 被引量:2
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作者 Xie Xiaochuan Wei Gang +2 位作者 Wu Keping Wang Gang Jia Shilou 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2008年第2期259-267,共9页
Tactical mobile ad hoc network (MANET) is a collection of mobile nodes forming a temporary network, without the aid of pre-established network infrastructure. The routing protocol has a crucial impact on the network... Tactical mobile ad hoc network (MANET) is a collection of mobile nodes forming a temporary network, without the aid of pre-established network infrastructure. The routing protocol has a crucial impact on the network performance in battlefields. Link reliability based hybrid routing (LRHR) is proposed, which is a novel hybrid routing protocol, for tactical MANET. Contrary to the traditional single path routing strategy, multiple paths are established between a pair of source-destination nodes. In the hybrid routing strategy, the rate of topological change provides a natural mechanism for switching dynamically between table-driven and on-demand routing. The simulation results indicate that the performances of the protocol in packet delivery ratio, routing overhead, and average end-to-end delay are better than the conventional routing protocol. 展开更多
关键词 tactical mobile ad hoc networks hybrid routing link reliability edge weight.
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ARSENIC REMOVAL BY SULFIDATION SEDIMENTATION IN MAGNETIC FIELD
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作者 Ma, Wei Ma, Wenji +1 位作者 Ma, Rongjun Shen, Dianbang 《中国有色金属学会会刊:英文版》 EI CSCD 1998年第3期174-177,共4页
1INTRODUCTIONAsthewatersourcecrisisisbecomingmoreandmoresevereandtheenvironmentprotectionrequirementsarebeco... 1INTRODUCTIONAsthewatersourcecrisisisbecomingmoreandmoresevereandtheenvironmentprotectionrequirementsarebecomingmoreandmoreri... 展开更多
关键词 ARSENIC treatment of waste water SULFIDE MAGNETIC FIELD
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