1. Laboratory of Electromechanical Systems, National Engineering School of Sfax, University of Sfax, Tunisia
2. National School of Engineers of Tunis (ENIT), University of Tunis El Manar, Tunis, Tunisia
3. Rue de l’Assistance, perpendiculaire à l’avenue Alain Savary, Cité El Khadhra, Tunis
4. Research Centre for Agriculture and Environment (CREA-AA), Rome, Italy
5. Moncada Soc. Agr. Coop O.P., Ispica (RG), Italy