Australian National University, Australia
Nankai University, China
Director of SINIF.
Researcher at the University of Alicante.
Georgian Technical University, Georgia
University of Missouri, USA
Institute of Materials Science of Madrid CSIC, Spain
Tehran University of Medical Sciences, Iran
University of Regina, Canada
Tsinghua University, China
Central Queensland University, Australia
United Arab Emirates University, UAE
Islamic Azad University, Iran
Athens Institute for Education and Research, Greece