1. Postgraduate Program in Electrical Engineering, Federal University of Espírito Santo (UFES), Vitoria 29075-910, Brazil
2. Graduate Program in Mechanical Engineering, Federal University of Espírito Santo (UFES), Vitoria 29075-910, Brazil
3. Postgraduate Program in Neuroengineering, Santos Dumont Institute, Macaiba 59280-000, Brazil