1. Laboratory Automation and Process Engineering (LAGEP), CPE Lyon; University of Lyon 1, CNRS UMR 5007; 43 bd du 11 Nov. 1918, F-69622 Villeurbanne France
2. Research Unit of Industrial Systems Study and Renewable Energy (ESIER) in the National School of Engineers of Monastir; University of Monastir, Av Ibn El-Jazzar 6306; Monastir Tunisia
3. Le2i Laboratory CNRS UMR 6306, University of Burgundy; Aile des Sciences de l'Ingnieur, 9 Avenue Alain Savary; BP 47870, 21078 Dijon France