He holds one Ph.D in physics and the other in electric power engineering. Before joining Drexel University, Dr. Belu held faculty, research, and industry positions at universities, research institutes, and utility companies in Romania, Canada, and United States. He also worked for several years in industry as a project manager and senior consultant. He has taught and developed undergraduate and graduate courses in electronics, power systems, microgrids, renewable energy, communication, control and power electronics, electric machines, instrumentation, radar and remote sensing, numerical methods and data analysis, space and atmosphere physics, and applied physics in Romania, Canada, and the United States.