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2009 International Workshop on Chaos-Fractals Theories and Applications最新文献

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Stability and Hopf Bifurcations of a Three-Species Symbiosis Model with Delays 一类时滞三种共生模型的稳定性和Hopf分岔
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.63
Qin Gao
{"title":"Stability and Hopf Bifurcations of a Three-Species Symbiosis Model with Delays","authors":"Qin Gao","doi":"10.1109/IWCFTA.2009.63","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.63","url":null,"abstract":"In this paper, a three-species symbiosis Lotka–Volterra model with discrete delays is considered. The stability of positive equilibrium and the existence of Hopf bifurcations are investigated firstly and then the direction and the stability criteria of the bifurcating periodic solutions are obtained by the normal form theory and the center manifold theorem.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130922260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Gliders, Collisions and Chaos of Cellular Automata Rule 62 滑翔机、碰撞和元胞自动机的混沌
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.53
Lun Shi, F. Chen, Weifeng Jin
{"title":"Gliders, Collisions and Chaos of Cellular Automata Rule 62","authors":"Lun Shi, F. Chen, Weifeng Jin","doi":"10.1109/IWCFTA.2009.53","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.53","url":null,"abstract":"This paper provides a systematic analysis of glider dynamics and interactions in rule 62, including a catalog of glider collisions. Based on these empirical observations, it is proved that rule 62 defines a subsystem with complicated dynamical properties in the bi-infinite symbolic sequence space, such as topologically mixing and positive topological entropy. Meanwhile, the phenomena of glider collisions provide an intriguing and valuable bridge for researching the symbolic dynamics of rule 62 in the bi-infinite case, especially for proving that the union of period-3 attractor and Bernoulli attractors is not the global attractor.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134393536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Fractional Order Adaptive Synchronization of a New Hyperchaotic System with an Uncertain Parameter 一类新型参数不确定超混沌系统的分数阶自适应同步
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.20
Longge Zhang
{"title":"Fractional Order Adaptive Synchronization of a New Hyperchaotic System with an Uncertain Parameter","authors":"Longge Zhang","doi":"10.1109/IWCFTA.2009.20","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.20","url":null,"abstract":"This paper investigates the fractional order synchronization of a new hyperchaotic system. Based on the Lyapunov stability theorem, a new type of Lyapunov function is designed to assure the stability of the closed system, and a large number of synchronization methods can received through the different selected fractional order. The feasibility and effectiveness of the proposed hyperchaotic system’s synchronization scheme are verified via numerical simulations.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114365466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adaptive Synchronization between Two Different Chaotic Systems with Uncertainties 两个不确定混沌系统的自适应同步
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.19
Meili Lin, Jianping Cai, Zhengzhong Yuan
{"title":"Adaptive Synchronization between Two Different Chaotic Systems with Uncertainties","authors":"Meili Lin, Jianping Cai, Zhengzhong Yuan","doi":"10.1109/IWCFTA.2009.19","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.19","url":null,"abstract":"An adaptive method is proposed to synchronize two different systems with unknown parameters and disturbance. Base on Lyapunov stability theory, an adaptive controller and parameters update laws are designed to synchronize two different chaotic systems even though the bounds on disturbance and parameters are unknown. Numerical simulation results verify the effectiveness of the method.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129398472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A New Proof for the Existence of Topological Horseshoe in Chen's Attractor 陈氏吸引子中拓扑马蹄形存在的新证明
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.64
Wenjuan Wu, Zengqiang Chen, Guanrong Chen
{"title":"A New Proof for the Existence of Topological Horseshoe in Chen's Attractor","authors":"Wenjuan Wu, Zengqiang Chen, Guanrong Chen","doi":"10.1109/IWCFTA.2009.64","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.64","url":null,"abstract":"Based on the well-known topological horseshoe theorem, a new rigorous computer-assisted proof for the existence of topological horseshoe in Chen’s attractor is given. An appropriate Poincaré section of Chen’s attractor is chosen to obtain the corresponding Poincaré map which is proved to be semi-conjugate to a 2-shift map. This implies that Chen’s attractor has positive topological entropy, thus in this sense it is chaotic. The method used is somewhat simpler and more convenient than the classical Ši’lnikov method.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130541775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Bifurcation and Chaos Analysis of Chinese Net Export under the Global Financial Crisis 全球金融危机下中国净出口的分岔与混沌分析
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.77
H. Qin, Songcheng Sheng
{"title":"The Bifurcation and Chaos Analysis of Chinese Net Export under the Global Financial Crisis","authors":"H. Qin, Songcheng Sheng","doi":"10.1109/IWCFTA.2009.77","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.77","url":null,"abstract":"The global financial crisis has brought the adverse impact for the normal development of the world trade, and new trade protectionism led by the United States is prevalent, the export trade of China has been seriously affected. The paper has made the research of the issue of Chinese net export trade with the application of the non-linear dynamics. By constructing the non-linear dynamics model of the system of Chinese net export trade, the paper has analyzed the stability of the system, especially the bifurcation and chaos analysis of the model. The paper has researched the trans-critical bifurcation and the prediction of chaos of the system of Chinese net export, and proposed the related policy and the suggestion on how China could go out of the plight of the weak export demand and trade currently.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132529472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Image Hiding Algorithm Based on Displacement Block on Odd-Even Layer 基于奇偶层位移块的图像隐藏算法
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.46
Ren Hong-e, Chang Chunwu, Zhang Jian
{"title":"Image Hiding Algorithm Based on Displacement Block on Odd-Even Layer","authors":"Ren Hong-e, Chang Chunwu, Zhang Jian","doi":"10.1109/IWCFTA.2009.46","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.46","url":null,"abstract":"Base on the thought of shifting histogram, a new reversible data hiding algorithm is proposed. This method utilizes two adjacent pixels of which difference is 1 to hide information, for the sake of improving payload, odd-even layer adopt different block mode and modification methods for gray values. Plenty of experimental results show that, comparing with other algorithm, the proposed method has advantages of large hiding capacity and high quality of carrier image after hiding information.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121353779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Researches on a Fractal Watermarking Algorithm Based on Luminance Shifting Factor 基于亮度偏移因子的分形水印算法研究
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.85
Aiping Jiang, Yulan Han
{"title":"Researches on a Fractal Watermarking Algorithm Based on Luminance Shifting Factor","authors":"Aiping Jiang, Yulan Han","doi":"10.1109/IWCFTA.2009.85","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.85","url":null,"abstract":"A new fractal watermarking algorithm is proposed, in which the watermark embedded can be extracted well. To achieve high-quality extracted watermark under some image attacks, the algorithm selects a suitable image arbitrarily and performs fractal encoding for the image. Then the image is decoded after the watermark image takes the place of the luminance shifting factor in the fractal codebook. Finally according to sub-block DCT watermarking algorithm, the decoded binary image is embedded into the DCT middle frequency coefficients of the original image to obtain the watermarked image. Experimental results demonstrate the good robustness and invisibility of our approach proposed.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129638858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Algebraic Criterion of Hopf Bifurcation with Relatively Reliability Hopf分岔的一个相对可靠的代数判据
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.59
Jianjun Tu, H. He
{"title":"An Algebraic Criterion of Hopf Bifurcation with Relatively Reliability","authors":"Jianjun Tu, H. He","doi":"10.1109/IWCFTA.2009.59","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.59","url":null,"abstract":"The non-dominant characteristic root (NDCR) is defined. The possible damage to Hopf bifurcation caused by the NDCRs is put forward and confirmed by the simulations. The conception of the relative reliability of Hopf bifurcation is brought forward. In order to made the nth-order Hopf bifurcation relatively reliable, a new algebraic criterion is given, which can also help identifying the direction of bifurcation and the stability of the limit cycle. The example and simulation of the fourth-order controlled Lorenz system is presented to show the effectiveness and convenience of the criterion. Via adjusting of a distance parameter, the adverse influences induced by the NDCRs can be avoided.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"32 64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121795183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hausdorff Dimension Spectrum of Self-Affine Carpets Indexed by Nonlinear Fibre-Coding 非线性纤维编码索引自仿射地毯的Hausdorff维数谱
2009 International Workshop on Chaos-Fractals Theories and Applications Pub Date : 2009-11-06 DOI: 10.1109/IWCFTA.2009.86
Y. Gui
{"title":"Hausdorff Dimension Spectrum of Self-Affine Carpets Indexed by Nonlinear Fibre-Coding","authors":"Y. Gui","doi":"10.1109/IWCFTA.2009.86","DOIUrl":"https://doi.org/10.1109/IWCFTA.2009.86","url":null,"abstract":"In this paper we study a class of subsets of self-affine carpets which are indexed by fibre-coding, but their limiting frequencies have nonlinear relation. We obtain their Hausdorff dimension spectrum and give the necessary and sufficient conditions of these fractal sets to be s-set.","PeriodicalId":279256,"journal":{"name":"2009 International Workshop on Chaos-Fractals Theories and Applications","volume":"1 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114044518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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