1. Department of Engineering University of Campania “Luigi Vanvitelli” Via Roma n. 29 Aversa 81031 Italy
2. Department of Environmental, Biological and Pharmaceutical Sciences and Technologies University of Campania “Luigi Vanvitelli” Via Vivaldi 43 Caserta 81100 Italy
3. Department of Engineering “Enzo Ferrari” University of Modena and Reggio Emilia Via P. Vivarelli n. 10 Modena 41125 Italy