1. Power Control System Engineering, ASCO Power Technologies, Florham Park, NJ 07932, USA
2. Armaments Engineering and Technology Center, US Army Research, Development and Engineering Center, Picatinny, NJ 07806, USA
3. Department of Information Management, Leader University, Tainan 70970, Taiwan
4. Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA