1. Ph.D. Student, Swinburne Univ. of Technology, Melbourne, VIC 3122, Australia.
2. Lecturer, Faculty of Science, Engineering and Technology (H38), Swinburne Univ. of Technology, P.O. Box 218, Hawthorn, Melbourne, VIC 3122, Australia (corresponding author).
3. Associate Professor, Swinburne Univ. of Technology, Melbourne, VIC 3122, Australia.
4. Lecturer, School of Engineering, Univ. of Melbourne, Melbourne, VIC 3010, Australia.
5. Senior Lecturer, Swinburne Univ. of Technology, Melbourne, VIC 3122, Australia.