Regents Professor, School of Electrical and Computer Engineering Georgia Tech

Professor Emeritus of Innovative Manufacturing Technology, University of Bath, UK

LIQUID PROPULSION SYSTEM CENTRE, ISRO

Bleximo Corp.

Physik und ihre Didaktik

NASA Goddard Space Flight Center

Barrett Chair in Sustainable Food Engineering and Professor, University of Guelph

National Institute of Standards and Technology

Professor of Engineering Science, University of Oxford

Australian National University