This paper deals with the problem of delay-dependent stability criterion of arbitrary switched linear systems with time-varying delay. Based on switched quadratic Lyapunov functional approach and free-weighting matrix approach, some linear matrix inequality criterions are found to guarantee delay-dependent asymptotically stability of these systems. Simultaneously, arbitrary switched linear syst...

Background: Infertility as a life crisis is accompanied by a wide range of social, psychological, physical and financial problems. These problems are varied- both in nature and extent- in different locations according to specific cultural- social contexts. Infertility is a source of social suffering for infertile people, especially women. As infertility prevent individuals from achieving the sp...

in this paper the sociological approach of janet wolff and john thompson is used to identify and interpret the relationship between the evolution of persian carpet and its social context. the social context includes socio-economic, ideologican and political conditions surronding this evolution. to study persian carpet from the pazric rug from its initiation to the present time, based on numorou...

This paper studies the effects of the structural variables of the Iranian industries sector on the welfare cost using to the Structure-Conduct-Performance (SCP) theory. In other words, we investigate the role of structural components and their effects on the size of the welfare cost in Iran's industry sector. We have used the Leibenstein's model to calculate the deadweight loss and then the pan...

Initiation practices likely support group functioning by promoting group-relevant skills and attitudes, reinforcing status hierarchies, and stimulating cognitive, behavioral, and affective forms of social dependency. In field tests of these propositions, 269 undergraduates from same-gender organizations rated their initiation experiences. As predicted, athletes reported relatively more physical...

The robust asymptotic stability problem of genetic regulatory networks with time-varying delays is investigated. Based on a piecewise analysis method, the variation interval of the time delay is firstly divided into two subintervals, and then the convexity property of the matrix inequality and the free weighting matrix method are fully used in this paper. By using a Lyapunov functional approach...

This paper deals with the uniqueness and stability problem for uncertain bidirectional associative memory (BAM) neural networks with time-varying delays. Based on the Lyapunov-Krasovskii functional approach and free-weighting matrices method, new delay-dependent stability criteria with two classes of system uncertainties are presented in terms of linear matrix inequalities (LMIs). By using the ...

The concept of ‘social situatedness’, i.e. the idea that the development of individual intelligence requires a social (and cultural) embedding, has recently received much attention in cognitive science and artificial intelligence research. The work of Lev Vygotsky who put forward this view already in the 1920s has influenced the discussion to some degree, but still remains far from well known. ...

The delay-dependent decentralized stabilization problem of multi-channel singular time-delay time-invariant systems subject to multiple internal and external incommensurate constant point delays is discussed based on the descriptor integral-inequality approach. The descriptor integral-inequality Lemma is firstly established. Based on the new Lemma and the Lyapunov-Krasovskii functional approach...