Professor of Geotechnical and Geoenvironmental Engineering, Queen's University

Monash University Australia

Indian Institute of Technology Patna

Professor, Honorary Fellow, Centre of African Studies, University of Edinburgh

Distinguished Professor Geography and Spatial Sciences, University of Delaware, USA

Northeastern University （东北大学）

Professor of Energy and Mineral Engineering, Professor of Mining Engineering, Penn State …

Research Chemist, US Geological Survey

Professor

Professor of Mining Engineering, Shahrood University of Technology