1. School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, PO Box 71, Bundoora, VIC 3083, Australia
2. Swinburne Research & Development, Swinburne University of Technology, Hawthorn, VIC 3122, Victoria, Australia
3. Monash Medical Centre, Monash University, Clayton, VIC 3168, Australia
4. Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia