 
                            University of Regina
Canada
 
                             
                            Jeju National University
South korea
 
                             
                            Vienna University of Technology
Austria
 
                             
                            National Laboratory of Engineering and Geology
Portugal
 
                             
                            Bialystok University of Technology
Poland
 
                             
                            University of Western Attica
Greece
 
                             
                            Future Energy Research Institute of S.C.I.Energy
Switzerland
 
                             
                            The Hong Kong Polytechnic University
Hong Kong
 
                             
                            Universiti Malaysia Perlis
Malaysia
 
                             
                            Emeritus Professor, Indian Institute of Technology Roorkee
India
