| Dr | zhen | cong | Dalian university of technology | China |
| Assoc. Prof. Dr | DHEKRA | BEN AMARA | Qingdao Hengxing University of Science and Technology | China |
| Dr | Ayandeji Sunday | Ayantokun | UNIVERSITY OF THE FREE STATE | South Africa |
| Dr | Oliver. O | Apeh | University of Johannesburg | South Africa |
| Ms | MONICA | ALVAREZ MANSO | UNIVERSIDAD DE LEON | Spain |
| Assist. Prof. Dr | Mohammad | Alfadil | King Saud University | Saudi Arabia |