1. Department of Mechanical Engineering, University of Malaya, Kuala Lumpur, Malaysia
2. Department of Decision Sciences, School of Quantitative Sciences, University Utara Malaysia, Sintok, Malaysia
3. Department of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Tunku Highway, Gadong, Brunei Darussalam
4. College of Mechanical Engineering, Chongqing University, Chongqing, PR China