1. Department
of Industrial and Management System Engineering, West Virginia University, P.O. Box 6070, Morgantown, West Virginia 26506, United States
2. Department
of Industrial and Systems Engineering, Virginia Polytechnic Institute and State University, Blackburg, Virginia 24601, United States
3. Department
of Mechanical and Aerospace Engineering, West Virginia University, P.O. Box 6070, Morgantown, West Virginia 26506, United States