1. a Department of Bio-Industrial Mechatronics Engineering , National Taiwan University , Taipei , Taiwan , Republic of China
2. b Center for General Education , Toko University , Taiwan , Republic of China
3. c Department of Biomechatronics Engineering , National Ilan University , Taiwan , Republic of China
4. d Department of Safety, Health and Environmental Engineering , Hungkuang University , Taiwan , Republic of China
5. e Institute of Occupational Safety and Health, Council of Labor Affairs , Taiwan , Republic of China