Dr Eleni Apostolidou, Professor, Eastern Macedonia and Thrace Institute of Technology.

Dr Nikolaos C. Kokkinos, Assoc. Professor, Eastern Macedonia and Thrace Institute of Technology.

Dr Dhaker Abbes, Enseignant - Chercheur, Département EEA, HEI - Yncréa.

Dr Malek Benmansour, Head of the Material Laboratory, National Institute of Solar Energy (INES).