1. Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
2. Department of Industrial Engineering; University of Padova; Via Marzolo 9 35131 Padova Italy
3. Consorzio RFX; Corso Stati Uniti 4 35127 Padova Italy
4. Department of Electrical, Electronic and Information Engineering; University of Bologna; Viale del Risorgimento 2 40136 Bologna Italy