نتایج جستجو برای: anti synchronization

تعداد نتایج: 401989  

Journal: :Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology 2012
Muhammad Naeem Girijesh Prasad David R Watson J A Scott Kelso

OBJECTIVES The goal of this research was to investigate sub-band modulations in the mu domain in dyads performing different social coordination tasks. METHODS Dyads of subjects performed rhythmic finger movement under three different task conditions: intrinsic - maintain self-produced movement while ignoring their partner's movement; in-phase - synchronize with partner; and anti-phase - maint...

This paper is concerned with the problem of synchronization for complex dynamic networks with state and coupling time-delays. Therefore, larger class and more complicated complex dynamic networks can be considered for the synchronization problem. Based on the Lyapunov-Krasovskii functional, a delay-independent criterion is obtained and formulated in the form of linear matrix inequalities (LMIs)...

2015
Hui Zhao Lixiang Li Haipeng Peng Jürgen Kurths Jinghua Xiao Yixian Yang

In this paper, exponential anti-synchronization in mean square of an uncertain memristor-based neural network is studied. The uncertain terms include non-modeled dynamics with boundary and stochastic perturbations. Based on the differential inclusions theory, linear matrix inequalities, Gronwall’s inequality and adaptive control technique, an adaptive controller with update laws is developed to...

پایان نامه :دانشگاه آزاد اسلامی واحد علوم پزشکی تهران - دانشکده پزشکی 1390

مقدمه : سقط شایع ترین عارضه بارداری بوده و در ? 15 حاملگی ها رخ می دهد . اختلالات ایمنولوژیک یکی از علل شایع سقط می باشد که خود شامل فاکتورهای آلوایمیون و اتوایمیون می باشد . با توجه به نقش آنتی بادی ها ضد تیروئیدی از جمله anti-tpo به عنوان یک فاکتور اتوایمیون در ایجاد سقط های خودبه خودی ومکرر ، در این مطالعه به بررسی ارتباط بین این دو می پردازیم . اهداف : هدف کلی : بررسی ارتباط بین سطح anti-...

2015
Meili Lu Bei Liu Yanqiu Che Chunxiao Han

Weak coupling connections are ubiquitous in neuronal system. For neurons with both spiking and bursting dynamics, bursting synchronization, which has been found to be related with a number of abnormal brain rhythms, is easier to occur at smaller synaptic strengths. In this paper, we examine the effect of the synaptic types on the synchronization properties of the weakly coupled bursting neurona...

2013
Sundarapandian Vaidyanathan

Anti-synchronization of chaotic systems is a research problem that deals with synchronizing the states of master and slave systems at a phase of 180 degrees, i.e. the states are equal in magnitude but opposite in sign. This paper deals with the anti-synchronization research problem of identical hyperchaotic Lü systems (Zhao and Lü, 2008) and new results are derived via sliding mode control. Thi...

Journal: :JCM 2016
Lijun Ge Yue Li Jin Tao

A timing and sampling frequency synchronization scheme, based on the preamble and the pilots, is given in this paper, for the 60GHz OFDM system specified in the IEEE802.15.3c standard. Based on the Gray complementary sequences, an anti-multipath separated sliding correlation detection (SSCD) algorithm is fist proposed, and the positions of the correlation peaks are averaged to increase the anti...

Journal: :Symmetry 2022

The presence of uncertainty and disturbance can lead to asymmetric control nonlinear systems, this a decrease in the productivity engineered system. In order improve speed improved system, complete synchronization partial anti-synchronization complex Lü chaotic systems with are investigated present paper. First, new UDE-based dynamic feedback method is proposed for problem unites gain perturbat...

In this paper we review some recent ideas of synchronization theory. We apply this theory to study the different synchronization aspects of uni-directionally coupled pair of chaotic one-dimensional Gaussian maps.

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