 
									
										Yale University
USA									
									
 
									
										 University of Sassari
Italy									
									
										New Jersey Institute of Technology
USA									
									
 
									
										Lai Universiti Malaya
Malaysia									
									
 
									
										Firat University
Turkey									
									
										CSIR-National Physical Laboratory
India									
									
 
									
										National Taiwan University of Science and Technology
Taiwan									
									
										Universidade Federal de Minas Gerais
Brazil