1. Department of Industrial Engineering; University of Salerno, Via Giovanni Paolo II, 132; 84084 Fisciano (SA) Italy
2. Department of Engineering; University of Sannio, Piazza Roma; 82100 Benevento Italy
3. Institute of Polymers, Composites and Biomaterials (IPCB - CNR) Piazzale E. Fermi 1; 80055 Portici (Na) Italy