1. Department of Mechanical Engineering, National Chung Cheng University, Chiayi 621, Taiwan
2. Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 106, Taiwan
3. HIWIN Technologies Corp., Taichung 408, Taiwan
4. Department of Mechanical Engineering and Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi 621, Taiwan