Tomás Radil

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—This paper presents a system for detection and classification of power quality (PQ) voltage disturbances. The proposed system applies the following methods to detect and classify PQ disturbances: Digital filtering and mathematical morphology are used to detect and classify transients and waveform distortions, whereas for short-and long-duration(More)
Spontaneous figure reversal of ambiguous patterns was analyzed in humans by presenting " Necker-cube "-like, or " drum "-like figures having square or round shaped " front " and " rear " surfaces, and either large or small " depth ". The figures were perceived alternately according to one or the other of two possible mental orientation-interpretations. The(More)
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