Professor, Department of Environmental Engineering, Environmental Engineering, National Ilan University, Taiwan.
Assistant Professor, Department of Physics and Materials Science, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China
department of civil engineering, college of engineering, university of Baghdad, Baghdad, IRAQ
Associate Professor, Portland State University, Portland
Professor, Department of physics & Material science, City University of Hongkong
Dean, College of Engineering and Engineering Technology, Northern Illinois University
Mosul University,College of Science, Mosul
Center of Excellence for Advanced Materials Research (CEAMR) & Chemistry department, King Abdulaziz University, Faculty of Science, Jeddah 21589, P.O.Box 80230, Saudi Arabia.