1. Ph. D. Program, Graduate Institute of Precision Manufacturing
2. National Chin-Yi University of Technology
3. Taichung
4. Taiwan
5. Department of Applied Cosmetology
6. Hungkuang University
7. Taichung 44302
8. Department of Chemical Engineering
9. Chung Yuan Christian University
10. Chung Li 32023
11. Department of Chemical and Materials Engineering