1. Department of Mechanical Engineering Faculty of Engineering University Malaya 50603 KUALA LUMPUR MALAYSIA
2. Centre of Advanced Manufacturing and Material Processing (AMMP Centre) Faculty of Engineering University Malaya 50603 KUALA LUMPUR MALAYSIA
3. Mechanical Engineering Department College of Engineering Embry-Riddle Aeronautical University 1 Aerospace Boulevard Daytona Beach FL 32114-3900 USA