1. Department of IT
Convergence, Korea National University of Transportation, Chungju 380-702, Republic of Korea
2. Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
3. Department of Polymer Science and Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
4. Department of Otolaryngology−Head
and Neck Surgery, Kosin University College of Medicine, Busan 49267, South Korea