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Synchronization of N different coupled chaotic systems with ring and chain connections

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Applied Mathematics and Mechanics(English Edition) 2008年第10期29卷 1299-1308页

作者：刘艳吕翎 College of Physics and Electronic Technology Liaoning Normal University

Synchronization of N different coupled chaotic systems with ring and chain connections is investigated. The New system, the Chen system, the Lii system, the Lorenz system, and the Rossler system are used as examples in verifying effectiveness of the method. Based on the Lyapunov stability theory, the form of the controller is designed and the area of the coupling coefficients is determined. Simulations indicate that global synchronization of the N different chaotic systems can be realized by choosing appropriate coupling coefficients by using the controller.

关键词： chaos synchronization Lyapunov stability theory coupling with ring and chain connection different chaotic systems coupling coefficient

Parameter identification and synchronization of spatiotemporal chaos in an uncertain Gray-Scott system

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Science China(Physics,Mechanics & Astronomy) 2008年第11期51卷 1638-1646页

作者： LüLing LI Yi GUO ZhiAn College of Physics and Electronic Technology Liaoning Normal UniversityDalian 116029China Department of Mathematics and Physics Dalian Jiaotong UniversityDalian 116028China

The zero-asymptotic property of sliding variables in discrete systems is extended to a continuous one and applied to partial differential equations which describe spatiotemporal chaos. A method of chaos synchronization and parameter identifi-cation is proposed. The synchronization controllers and the parameter recognizers are designed. The uncertain Gray-Scott system is taken as an example to verify the effectiveness of the method. Simulation results show that the identification vari-ables in the parameter recognizers may take the place of the unknown parameters in both target and response systems. Global synchronization of the two spatio-temporal chaotic systems with uncertain parameters may be realized quickly after controllers are added.

关键词： spatiotemporal chaos sliding variable parameter identification synchronization uncertain Gray-Scott system

Radiative Dileptonic Decays B_(s)→l^(+)l^(-)γ in the TC2 Model

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Chinese Physics Letters 2012年第7期29卷 51-55页

作者： ZHANG Jiao YUE Chong-Xing Department of Physics Liaoning Normal UniversityDalian 116029

We investigate the radiative dileptonic decays B_(s)→l^(+)l^(-)γ (l =e,μ and T) in the framework of the topcolor-assisted technicolor (TC2) *** contributions of the new particles predicted by this model to the branching ratios and the forward-backward asymmetry (AFB) of these decays are *** is found that the values of their branching ratios are greater than the standard model (SM) predictions by several times up to one order of magnitude and │AFB│ can also be enhanced by several times in a wide range of the parameter space.

关键词： space branching decay

Pair Production of the Doubly Charged Leptons via Electroweak Vector Boson Fusion at the Large Hadron Collider

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Chinese Physics Letters 2014年第2期31卷 25-29页

作者：于游岳崇兴夏昀 Department of Physics Liaoning Normal University Dalian 116029

Pair production of the doubly charged leptons X±± via vector boson fusion （γγ, Zγ and WW） at the large hadron collider is studied. Our numerical results show that the cross section via Zγ fusion is very small. For the center-of-mass energy √s= 14 TeV and Mx = 200 650 GeV, the values of the cross sections σγγ and σww are in the ranges of 5.2 fb-0.04 fb and 20.2 fb 1.2 fb, respectively.

关键词： LEPTONS (Nuclear physics) PAIR production ELECTROWEAK interactions LARGE Hadron Collider (France & Switzerland) NUCLEAR fusion BOSONS

Face Age Estimation Based on CSLBP and Lightweight Convolutional Neural Network

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Computers, Materials & Continua 2021年第11期69卷 2203-2216页

作者： Yang Wang Ying Tian Ou Tian School of Computer Science and Software Engineering University of Science&Technology LiaoningAnshan114051China Medical and Health Sciences University of WollongongNSW2522Australia

As the use of facial attributes continues to expand,research into facial age estimation is also *** face images are easily affected by factors including illumination and occlusion,the age estimation of faces is a challenging *** paper proposes a face age estimation algorithm based on lightweight convolutional neural network in view of the complexity of the environment and the limitations of device computing *** face age estimation based on Soft Stagewise Regression Network(SSR-Net)and facial images,this paper employs the Center Symmetric Local Binary Pattern(CSLBP)method to obtain the feature image and then combines the face image and the feature image as network input *** feature images to the convolutional neural network can improve the accuracy as well as increase the network model *** experimental results on IMDB-WIKI and MORPH 2 datasets show that the lightweight convolutional neural network method proposed in this paper reduces model complexity and increases the accuracy of face age estimations.

关键词： Face age estimation lightweight convolutional neural network CSLBP SSR-Net

A Novel Method Based on Nonlinear Binary Grasshopper Whale Optimization Algorithm for Feature Selection

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Journal of Bionic Engineering 2023年第1期20卷 237-252页

作者： Lingling Fang Xiyue Liang Department of Computing and Information Technology Liaoning Normal UniversityDalian116081China

Feature Selection(FS)is considered as an important preprocessing step in data mining and is used to remove redundant or unrelated features from high-dimensional *** optimization algorithms for FS problems are not balanced in search.A hybrid algorithm called nonlinear binary grasshopper whale optimization algorithm(NL-BGWOA)is proposed to solve the problem in this *** the proposed method,a new position updating strategy combining the position changes of whales and grasshoppers population is expressed,which optimizes the diversity of searching in the target *** distinct high-dimensional UCI datasets,the multi-modal Parkinson's speech datasets,and the COVID-19 symptom dataset are used to validate the proposed *** has been demonstrated that the proposed NL-BGWOA performs well across most of high-dimensional datasets,which shows a high accuracy rate of up to ***,the experimental results on the medical datasets also demonstrate the advantages of the proposed method in actual FS problem,including accuracy,size of feature subsets,and fitness with best values of 0.913,5.7,and 0.0873,*** results reveal that the proposed NL-BGWOA has comprehensive superiority in solving the FS problem of high-dimensional data.

关键词： Feature selection Hybrid bionic optimization algorithm Biomimetic position updating strategy Nature-inspired algorithm-High-dimensional UCI datasets-Multi-modal medical datasets

Production of the neutral top-pion π_t^0 in association with a high-pT jet at the LHC

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Chinese Physics C 2009年第9期33卷 717-721页

作者：朱世海岳崇兴刘伟丁丽 Department of Physics Liaoning Normal University

In the framework of the topcolor-assisted technicolor （TC2） model, we study the production of the neutral top-pion πt^0 in association with a high-pw jet at the LHC, which proceeds via the partonic processes gg→πt^0g, gq →πt^0q, qq→πt^0g, gb（b）→πt^0b（b）, and bb→πt^0g. We find that it is very challenging to detect the neutral top-pion πt^0 via the process pp → πt^0 ＋jet ＋ X＋ tt＋jet ＋X, while the possible signatures of πt^0 might be detected via the process pp→πt^0 ＋jet ＋ X→（tc＋tc）＋jet＋X at the LHC.

关键词： neutral top-pion LHC production cross section

Littlest Higgs model with T-parity and single top production in ep collisions

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Chinese Physics C 2009年第2期33卷 89-93页

作者：闻佳岳崇兴刘金岩刘伟 Department of Physics Liaoning Normal University

Based on calculating the contributions of the littlest Higgs model with T-parity （called LHT model） to the anomalous top coupling tqγ （q = u or c）, we consider single top production via the t-channel partonic process eq→et in ep collisions. Our numerical results show that the production cross section in the LHT model can be significantly enhanced relative to that in the standard model （SM）.

关键词： LHT model single top production production cross section

Generalized chaos synchronization of a weighted complex network with different nodes

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Chinese Physics B 2010年第8期19卷 177-183页

作者：吕翎李钢郭丽孟乐邹家蕊杨明 College of Physics and Electronic Technology Liaoning Normal University

This paper proposes a method of realizing generalized chaos synchronization of a weighted complex network with different nodes. Chaotic systems with diverse structures are taken as the nodes of the complex dynamical network, the nonlinear terms of the systems are taken as coupling functions, and the relations among the nodes are built through weighted connections. The structure of the coupling functions between the connected nodes is obtained based on Lyapunov stability theory. A complex network with nodes of Lorenz system, Coullet system, RSssler system and the New system is taken as an example for simulation study and the results show that generalized chaos synchronization exists in the whole weighted complex network with different nodes when the coupling strength among the nodes is given with any weight value. The method can be used in realizing generalized chaos synchronization of a weighted complex network with different nodes. Furthermore, both the weight value of the coupling strength among the nodes and the number of the nodes have no effect on the stability of synchronization in the whole complex network.

关键词： chaos synchronization weighted network diverse structure Lyapunov stability theory