1. Institute for Microtechnology, Technical University Braunschweig, Germany
2. Mechanical Engineering Department, Purdue University at Fort Wayne, Fort Wayne, IN 46805, USA
3. Mechanical Engineering Department, University of Jordan, Amman, Jordan
4. Mechanical Engineering Department, Mu'tah University, Mu'tah, Jordan
5. Mechanical Engineering Department, Al-Balqa‘ University, Amman, Jordan