University of Electronic Science and Technology of China, China
Head of the Sustainable Development Department, Geological Institute of Romania, Romania
Sr.Expert Engineer Metallurgist- AGIR & SCO Expert, Luzern, Switzerland, Romania
Vice Chancellor, Mahatma Gandhi University, Kerala, India
Portland State University, Portland, USA.
A.A. Galkin Donetsk Institute for Physics and Engineering, Ukraine
Hong Kong University of Science and Technology, Hong Kong
Nanoelectronics Engineering Program, Zewail City , Egypt