1. Associate Professor, Faculty of Engineering and Industrial Science (H38), Swinburne Univ. of Technology, Melbourne, VIC3122, Australia. P.O Box 218, Hawthorn, VIC 3122 Australia (corresponding author).
2. Former Ph.D. Student, Swinburne Univ. of Technology, Melbourne, VIC3122, Australia.
3. Lecturer, Swinburne Univ. of Technology, Melbourne, VIC3122, Australia.
4. Senior Principal/Director, DST Consulting Engineers Inc, Thunder Bay, Ontario, P7B 5V5, Canada.