1. Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan, ROC
2. Department of Auto-Mechanics, National Kangshan Agricultural Industrial Senior High School, Kaohsiung, Taiwan, ROC
3. School of Dentistry, China Medical University, Taichung City, Taiwan, ROC
4. Biomedical Technology R&D Center, China Medical University Hospital, Taichung City, Taiwan, ROC