1. a Department of Mechanical Engineering , Motilal Nehru National Institute of Technology , Allahabad, 211004, India Phone: Fax: E-mail:
2. b School of the Built and Natural Environment, Glasgow Caledonian University , Glasgow, UK Phone: Fax: E-mail:
3. c Department of Design Manufacturing and Engineering Management , Strathclyde University , Glasgow, UK Phone: Fax: E-mail: