1. Department of Engineering, Università degli Studi della Campania “L. Vanvitelli”, Via Roma, 29, 81031 Aversa, Italy
2. Inter-University National Consortium for Marine Sciences (CoNISMa), Piazzale Flaminio, 00144 Rome, Italy
3. Institute of Marine Engineering, CNR-INM, Via di Vallerano 139, 00128 Roma, Italy
4. Department of Marine Technology, NTNU, N-7491 Trondheim, Norway