Abstract. In this paper, the adaptive control and parameters identification problems are investigated for a class of linearly parametric strict feedback system with unknown control direction. Firstly, by using backstepping design procedure, the adaptive tracking control scheme combined with Nussbaum gain function is proposed. In the controller, the adaptive law of estimated parameters is derive...

allame tabatabaei believes that theory of fitrah (instinct qualities of human nature) rests upon the principle of general instinct conductance of creatures and considers this theory as a branch of it. he also believes in the theory of eternal inherent happiness and unhappiness of human being, explains it in a way that it can be compatible with the benevolent tendency in every human being’s natu...

modernity is a concept which has been investigated from different aspects. probc. bly one the most valid theories in this field is giddens’s theory. giddens originally considers modernity as a cultural trend that has arrived new phase and has its own characteristics in all social life aspects. reviewing giddens’s theory shows the claims expressing that modernity shows itself in leisure time. it...

A recently published paper [T. Došlić, this journal 3 (2012) 25-34] considers the Zagreb indices of benzenoid systems, and points out their low discriminativity. We show that analogous results hold for a variety of vertex-degree-based molecular structure descriptors that are being studied in contemporary mathematical chemistry. We also show that these results are straightforwardly obtained by u...

Many critics of Martha Nussbaum claim that her account the capabilities approach is a perfectionist theory does not provide unique standpoint to political justice and only complements Rawls’ conception primary goods. The purpose this article show differs from goods in sense former orientated towards ends good life, while latter means. author argues takes an intermediate position between neutral...