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This dissertation contributes to the theoretical and experimental foundation of disturbance rejection control in dynamic bipedal robots. Disturbances produced by model uncertainties and external disturbances are studied ...

Voltage feedback is frequently used in class-D switching audio power amplifiers. This paper discusses the design and implementation of a low-cost filterless class-D, unipolar pulse-width modulation switching audio amplif...

Foi implementado um ambiente virtual de aprendizagem para auxiliar as aulas presenciais de Física, cuja ênfase foi a utilização de simulações de experimentos. Os recursos que o ambiente apresenta possibilitaram org...

Consider us the problem of time-varying parameter estimation. The most immediate and simple idea is to include a discounting procedure in an estimation algorithm i.e., a procedure for discarding (forgetting) old informat...