1. School of Mechanical and Automotive Engineering; Kingston University; London SW15 3DW United Kingdom
2. ITIA-CNR; Institute of Industrial Technologies and Automation; Bari Italy
3. Department of Industrial and Management Engineering; Arab Academy for Science and Technology and Maritime Transport; Abu Qir, PO Box 1029 Alexandria 21599 Egypt
4. School of Manufacturing Science and Engineering; Sichuan University; Chengdu 610065 China
5. School of Mechanical Engineering; The University of Birmingham; Edgbaston B15 2TT