1. Department of Industrial and Manufacturing Systems Engineering, Iowa State University, Ames, IA 50011, USA
2. Department of Materials Science, Montanuniversität Leoben, 8700 Leoben, Austria
3. Department of Mechanical & Manufacturing Engineering, University of Cyprus, CY-1678 Nicosia, Cyprus
4. W.B. Burnsed Jr. Department of Mechanical, Aerospace and Biomedical Engineering, University of South Alabama, Mobile, AL 36688, USA