M. Galal Rabie, PhD, is a professor of mechanical engineering in the Manufacturing Engineering and Production Technology Department at the Modern Academy for Engineering and Technology in Cairo, Egypt. He is the head of the aircraft mechanical engineering department at Military Technical College; a member of Egypt’s military research team; and a consultant in the field of fluid power technology for major industrial firms. Dr. Rabie has authored or coauthored 78 papers published in international journals and presented at refereed conferences.