1. Center for Advanced Vehicular Systems, Box 5405, Mississippi State, MS 39762-5405 e-mail:
2. Mem. ASME Department of Mechanical Engineering, Mississippi State University, Box 9552, Mississippi State, MS 39762-9552 e-mail:
3. Mem. ASME Department of Mechanical Engineering, University of Alabama, Box 870276, Tuscaloosa, AL 35487-0276 e-mail: