Professor, New Jersey Institute of Technology, USA
Professor, Southeastern Louisiana University, USA
Professor, University of Wisconsin-Milwaukee, USA
Professor, Washington University, USA
Senior Scientist , Brookhaven National Laboratory, USA
Honorary Research Fellow, Imperial College London, UK
Research Lecturer, University of Oxford, UK
Associate Professor , University of Leeds, UK
Professor, University of Valencia , Spain
Research Professor, Autonomous University of Barcelona , Spain
Professor, University of Salento, Italy
Associate Professor , Babeș-Bolyai University , Romania
Assistant teacher, University of Beira Interior, Portugal
Associate Professor , University of Twente , Netherlands
Personal Chair, Deakin University , Australia
Professor, Soochow University , China
Professor , Osaka University, Japan
Retired Professor, Firat University, Turkey
Associate Professor, UTM, Malaysia
Associate Professor , University of Patras, Greece