Federal University of Campina Grande, Unidade Acadêmica da UFCG, AprÃgio Veloso, 882 – Caixa Postal 10064 – 58109-970 – Campina Grande, ParaÃba, Brazil.
Federal University of São Francisco Valley, Department of Agricultural Engineering, Av. Antonio Carlos Magalhães, 510, 48902-300, Juazeiro - BA – Brazil.