1. Fashion Textile Center, Seoul National University, Seoul 151-742, Korea,
2. Intelligent Textiles System Research Center, Seoul National University, Seoul 151-742, Korea, Department of Clothing & Textiles, Seoul National University, Seoul 151-742, Korea
3. Research Institute of Human Ecology, Seoul National University, Seoul 151-742, Korea
4. Intelligent Textiles System Research Center, Seoul National University, Seoul 151-742, Korea, School of Materials Science and Engineering, Seoul National University, Seoul 151-742, Korea