1. Huanghe Science and Technology University, Zhengzhou, Henan, China
2. Faculty of Engineering, Uni de Moncton, Moncton, Canada
3. International Institute of Technology and Management (IITG), Avenue des Grandes Ecoles, Libreville, Gabon
4. Bridges for Academic Excellence, Tunis, Centre Ville, Tunisia
5. Department of Electrical and Electronic Engineering Science, School of Electrical Engineering, University of Johannesburg, Johannesburg, South Africa