Chancellor Professor Emeritus, University of Missouri–St. Louis, USA
Research Professor, Portland State University, USA
Assistant Professor, SUNY Potsdam, USA
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
Postdoc, Lawrence Berkeley National Laboratory, USA
Professor, Ryerson University, Canada
Professor, University of Wisconsin-Milwaukee, USA
Emeritus Professor, University of Oxford, UK
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
Associate Professor, University of Palermo, Italy
Professor, University of Salento, Italy
Ulm University, Germany
Professor, University of Valencia, Spain
Research Professor, Autonomous University of Barcelona, Spain
Principal Investigator, University of Minho, Portugal
Assistant Professor, NOVA University Lisbon, Portugal
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
Emeritus Chair Professor, National Taiwan University of Science and Technology, Taiwan
Professor, Russell Berrie Nanotechnology Institute, Israel
Professor Emeritus, Pohang University of Science and Technology, South Korea
Professor, Seoul National University, South Korea
Professor, Firat University, Turkey
Associate Professor , University of Malaya, Malaysia
Associate Professor, UTM, Malaysia
Associate Professor, University of Patras, Greece
Associate Professor , National University of Sciences and technology, Pakistan