Browsing by Autor "Jesus Franklin Andrade Romero"

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    Acoustic signal characterization of a ball milling machine model
    (IOP Publishing, 2011) J. Alexis Andrade-Romero; Jesus Franklin Andrade Romero; Mauricio Améstegui
    Los Angeles machine is used both for mining process and for standard testing covering strength of materials. As the present work is focused on the latter application, an improvement in the estimation procedure for the resistance percentage of small-size coarse aggregate is presented. More precisely, is proposed a pattern identification strategy of the vibratory signal for estimating the resistance percentage using a simplified chaotic model and the continuous wavelet transform.
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    Detection and Alert of muscle fatigue considering a Surface Electromyography Chaotic Model
    (IOP Publishing, 2011) Victoria Herrera; Jesus Franklin Andrade Romero; Mauricio Améstegui
    This work propose a detection and alert algorithm for muscle fatigue in paraplegic patients undergoing electro-therapy sessions. The procedure is based on a mathematical chaotic model emulating physiological signals and Continuous Wavelet Transform (CWT). The chaotic model developed is based on a logistic map that provides suitable data accomplishing some physiological signal class patterns. The CWT was applied to signals generated by the model and the resulting vector was obtained through Total Wavelet Entropy (TWE). In this sense, the presented work propose a viable and practical alert and detection algorithm for muscle fatigue.