[1] Univ Palermo, Dept Engn, Palermo, Italy
[2] Univ Enna KORE, Fac Engn & Architecture, Enna, Italy
[3] Univ Pernambuco, Polytech Sch Pernambuco, Recife, PE, Brazil
[4] Univ Palermo, Dept Math & Informat, Palermo, Italy
[5] Univ Fed Pernambuco, Dept Biomed Engn, Recife, PE, Brazil