1. Lecturer, Dept. of Building & Construction, City Univ. of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong.
2. Associate Professor, Dept. of Civil Engineering, Hong Kong Univ. of Science & Technology, Clear Water Bay, Kowloon, Hong Kong.
3. Deputy Dean of Engineering, Asian Univ. of Science and Technology, Pattaya, Thailand.