Egypt-Japan University of Science and Technology (E-JUST)

Istituto Nazionale di Geofisica e Vulcanologia

Professor Emeritus, Aerospace Engineering Sciences, University of Colorado

University of Michigan, Atmospheric and Oceanic Science and Engineering

Swedish Institute of Space Physics

University of California, Berkeley, SSL

Department of Space Science and Engineering, National Central University, Taoyuan …

University of California Berkeley Space Sciences Lab

Retired

Instituto Nacional de Pesquisas Espciais