University of Maine, USA

University of Iceland, Iceland

The Chinese University of Hong Kong, China

Hebei University of Technology, China

Dept. of Energy – Politecnico di Milano, Italy

American University in Dubai, UAE

Peking University, China

Universidad de Castilla-La Mancha (UCLM), Spain

Israel Institute of Technology, Israel

Mongolian University of Science and Technology, Mongolia

University of Maryland Baltimore, USA

National University of Singapore (Chongqing) Research Institute, P.R. China

Fellow of Royal Society Of Health(London), Uk

Universidad de Castilla-La Mancha (UCLM), Spain

Erich Schmid Institute of Materials Science, Austria

University of Marburg, Germany

Energetic thermal Department,USTHB, Algeria

University of Sfax, Tunisia

Global Quantech, Ltd., Cyprus

Navamindradhiraj University, Thailand

University of Huelva. Spain

University of Huelva, Spain

University of Huelva, Spain

University of Brasília, Brazil