1. CA Telematica / Procesamiento Digital de Señales University of Guanajuato,Division de Ingenierias Campus Irapuato-Salamanca (DICIS),Mexico
2. Autonomous University of Queretaro,ENAP-RG, CA Sistemas Dinamicos Faculty of Engineering,Departments of Electromechanical and Biomedical Engineering,San Juan del Rio,Queretaro,Mexico