1. Lecturer, Dept. of Architecture, Catholic Univ. of Daegu, 330, Kuemnak-ri, Hayang-eup, Gyeongsan-si, Gyeongbuk, South Korea 712-702.
2. Associate Professor, Dept. of Architecture, Seoul National Univ., San 56-1, Shinlim-Dong, Kwanak-Gu, Seoul, South Korea 151-744.
3. Professor, Dept. of Architecture, Seoul National Univ., San 56-1, Shinlim-Dong, Kwanak-Gu, Seoul, South Korea 151-744.
4. Head Researcher, Research Institute of Industrial Science and Technology, 79-5, Yeongcheon-ri, Dongtan-myeon, Hwasung-si, Kyeonggi-do, South Korea.