Affiliation: | 1. Department of Industrial Engineering, Dalhousie University, P.O. Box 1000, Halifax, Canada NS B3J 2X4;2. Department of Mechanical and Industrial Engineering, University of Toronto, 5 King''s College Road, Toronto, Canada ON M5S 3G8;3. Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, Canada ON M5B 2K3 |