Univ of Miami: Dept of Chemical, Env and Materials Engr.

University at Buffalo (SUNY)

Lovelace Respiratory Research Institute

Prince of Songkla University

The Cyprus Institute & TU Delft

visiting professor of aerosol technology, U. of Nairobi

Don Beall Dean, Charles W. Davidson College of Engineering, San Jose State University

Research Scientist, Environment and Climate Change Canada

National Institute for Environmental Studies

Professor of Mechanical and Aerospace Engineering, Carleton University