For a class of uncertain nonlinear chaotic systems with unknown control gain signs and saturated input, by means Nussbaum function, scheme finite-time prescribed performance synchronization is proposed. Here, function used to eliminate the influence signs, fuzzy logic are estimate functions. Lyapunov theory prove that all errors converge predefined small range under designed method. Finally, si...

This paper addresses the problem of adaptive fuzzy tracking control for aclass of nonlinearly parameterized systems with unknown control directions.In this paper, the nonlinearly parameterized functions are lumped into the unknown continuous functionswhich can be approximated by using the fuzzy logic systems (FLS) in Mamdani type. Then, the Nussbaum-type function is used to de...

Este artigo analisa a ideia de direitos no pensamento dos autores Ronald Dworkin, Amartya Sen e Martha Nussbaum. O objetivo é investigar pontos convergência divergência entre abordagem teórica filósofos. A partir do diálogo as concepções Nussbaum, conclui que necessário pensar justiça os da realidade concreta, isto é, verificando oportunidades, liberdades desigualdades existentes fato.

instrumentalism (in the science) refers to a view that considers scientific theories as nothing more than instruments for prediction. sometimes the traces of this attitude have been searched in the writings of plato and aristotle; but mostly the pioneers of the theory have been thought to be the priests who regarded the scientific propositions as mere hypothesis, in order to defend religious do...