1. Department
of Industrial Engineering, University of Salerno, via Giovanni
Paolo II 132, 84084 Fisciano (SA), Italy
2. Institute
of Science
and Technology for Ceramics (ISTEC−CNR), via Granarolo 64, 48018 Faenza (RA), Italy
3. Institute
for Research on Combustion, National Research Council, P.le Tecchio
80, 80125 Napoli, Italy