1. Robotics Institute, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates e-mail:
2. Professor Department of Aeronautical Engineering, Higher Colleges of Technology, P.O. Box 15825, Dubai, United Arab Emirates e-mail:
3. Professor Department of Mechanical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates e-mail: