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Communication via Chaotic Synchronization Based on Contraction Maps

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Chinese Physics Letters 1996年第8期13卷 572-575页

作者： ZHOU Chang-song chen tian-lun Department of Physics Nankai UniversityTianjin 300071

A newly proposed method for constructing chaotically synchronizing systems is applied to *** independent information signals can be transmitted at the same time if the chaotic system is a multi-dimensional *** of the ... 详细信息

关键词： chaotic constructing method

Damage Spreading in Neural Network with Local Connection and Cycle Stored Patterns

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Chinese Physics Letters 1996年第9期13卷 644-647页

作者： JI Dao-yun chen tian-lun Department of Physics Nankai UniversityTianjin 300071

The simulation results of damage spreading show the happening of dynamical chaotic-frozen phase transition in a one-dimensional system,a neural network with cycle stored patterns and local *** chaotic phase,the averag... 详细信息

关键词： behavior chaotic dynamical

Complex Behavior in an Integrate-and-Fire Neuron Model Based on Small World Networks

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Communications in Theoretical Physics 2005年第2X期44卷 311-315页

作者： LIN Min chen tian-lun Department of Physics Nankai University Tianjin 300071 China

Based on our previously pulse-coupled integrate-and-fire neuron model in small world networks, we investigate the complex behavior of electroencephalographic (EEG)-like activities produced by such a model. We find EEG-like activities have obvious chaotic characteristics. We also analyze the complex behaviors of EEG-like signals,such as spectral analysis, reconstruction of the phase space, the correlation dimension, and so on.

关键词： self-organized criticality EEG-like waveform edge of chaos

Nonlinear Dynamical Behavior in BS Evolution Model Based on Small-World Network Added with Mechanism of Preferential Connection

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Communications in Theoretical Physics 2006年第3期45卷 493-498页

作者： ZHANG Ying-Yue chen tian-lun Department of Physics Nankai University Tianjin 300071 China

In this paper, we introduce a modified small-world network added with new links with preferential connection instead of adding randomly, then we apply Bak-Sneppen （BS） evolution model on this network. Several dynamical character of the model such as the evolution graph, fo avalanche, the critical exponent D and T, and the distribution of mutation times of all the nodes, show particular behaviors different from those of the model based on the regular network and the small-world network.

关键词： connectionpower-law behavior small-world network evolution model preferential

Capability Analysis of Chaotic Mutation and Its Self-Adaption

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Communications in Theoretical Physics 2002年第5期38卷 555-560页

作者： YANG Li-Jiang chen tian-lun Department of Physics Nankai University Tianjin 300071 China Department of Physics Nankai University Tianjin 300071 China

Through studying several kinds of chaotic mappings' distributions of orbital points, we analyze the capabilityof the chaotic mutations based on these mappings. Nunerical experiments support our conclusions very well. Thecapability analysis also led to a self-adaptive mechanism of chaotic mutation. The introducing of the self-adaptivechaotic mutation can improve the performance of genetic algorithm very prominently.

关键词： genetic algorithms, chaotic mutation, function optimization, self-adaption

Application of Chaos in Genetic Algorithms

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Communications in Theoretical Physics 2002年第8期38卷 168-172页

作者： YANG Li-Jiang chen tian-lun Department of Physics Nankai University Tianjin 300071 China Department of Physics Nankai University Tianjin 300071 China

Through replacing Gaussian mutation operator in real-coded genetic algorithm with a chaotic mapping, wepresent a genetic algorithm with chaotic mutation. To examine this new algorithm, we applied our algorithm to functionoptimization problems and obtained good results. Furthermore the orbital points' distribution of chaotic mapping andthe effects of chaotic mutation with different parameters were studied in order to make the chaotic mutation mechanismbe utilized efficiently.

关键词： genetic algorithms, chaos, function optimization

Modified DM Models for Aging Networks Based on Neighborhood Connectivity

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Communications in Theoretical Physics 2008年第1期49卷 243-248页

作者： LIN Min WANG Gang chen tian-lun Department of Mathematics Ocean University of China Qingdao 266071 China First Institute of Oceanography State Oceanic Administration Qingdao 266061 China Department of Physics Nankai University Tianjin 300071 China

Two modified Dorogovtsev-Mendes （DM） models of aging networks based on the dynamics of connecting nearest-neighbors are introduced. One edge of the new site is connected to the old site with probability - kt^-α as in the DM＇s model, where the degree and age of the old site are k and t, respectively. We consider two cases, i.e. the other edges of the new site attaching to the nearest-neighbors of the old site with uniform and degree connectivity probability, respectively. The network structure changes with an increase of aging exponent α It is found that the networks can produce scale-free degree distributions with small-world properties. And the different connectivity probabilities lead to the different properties of the networks.

关键词： evolving networks aging neighborhood connectivity

Complex Behavior in a Selective Aging Neuron Model Based on Small World Networks

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Communications in Theoretical Physics 2008年第2期49卷 409-413页

作者： ZHANG Gui-Qing chen tian-lun Department of Physics Nankai University Tianjin 300071 China

Complex behavior in a selective aging simple neuron model based on small world networks is investigated. The basic elements of the model are endowed with the main features of a neuron function. The structure of the selective aging neuron model is discussed. We also give some properties of the new network and find that the neuron model displays a power-law behavior. If the brain network is small world-like network, the mean avalanche size is almost the same unless the aging parameter is big enough.

关键词： selective aging self-organized criticality small world networks finite-size-scaling analysis power-law

Transmitting Multiple Information Signals by a Single Chaotic Carrier

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Chinese Physics Letters 1997年第3期14卷 161-164页

作者： ZHOU Chang-song chen tian-lun Department of Physics Nankai UniversityTianjin 300071

A method for transmitting multiple digital information signals by a single transmitted chaotic signal is *** information signals are encoded by modifying some tunable parameters of a chaotic system and decoded at the receiver by following the parameter modulation in the transmitter via *** Lorenz system is used to demonstrate the validity,robastness and security of the method.

关键词： method chaotic system