School of Engeneering of Minas Gerais - EMGE, Belo Horizonte, 30150-250, Brazil. cristiano.lacerda@gmail.com.|Pontifical Catholic University of Minas Gerais - PUC-MG, 255, Walter Ianni Street, Belo Horizonte, 31980-110, Brazil.|Pontifical Catholic University of Minas Gerais - PUC-MG, 255, Walter Ianni Street, Belo Horizonte, 31980-110, Brazil.