Distinguished Professor, Virginia Polytechnic Institute and State University, USA
Senior Scientist, Brookhaven National Laboratory, USA
Professor, New Jersey Institute of Technology, USA
Professor, Southeastern Louisiana University, USA
Professor, Washington University, USA
Professor, University of Wisconsin-Milwaukee, USA
Senior Lecturer, Sheffield Hallam University, UK
Professor, University of Bolton, UK
Associate Professor, University of Leeds, UK
Honorary Research Fellow, Imperial College London, UK
Professor, Brunel University , UK
Research Lecturer, University of Oxford, UK
Professor, University of Salento, Italy
Ulm University, Germany
Professor, University of Valencia, Spain
Research Professor, Autonomous University of Barcelona, Spain
Assistant teacher, University of Beira Interior, Portugal
Associate Professor, Babeș-Bolyai University, Romania
Faculty, Bialystok University of Technology, Poland
Associate Professor, University of Twente, Netherlands
Professor, Auckland University, Newzealand
Personal Chair, Deakin University, Australia
Professor, Soochow University, China
Professor , Osaka University, Japan
Professor, National Taipei University of Technology, Taiwan
Chair Professor, National Cheng Kung University, Taiwan
Professor, Seoul National University, South Korea
Professor, Firat University, Turkey
Associate Professor, UTM, Malaysia
Associate Professor, University of Patras, Greece
Associate Professor , National University of Sciences and technology, Pakistan