1. Department of Mech. Eng., North Carolina A&T SU, Greensboro, NC 27411, USA
2. NRC Scholar, NESB, NASA LaRC, MS231, 3B East Taylor Street, Hampton, VA 23681-2199, USA
3. Department of Mech., Ind., and Nuclear Eng., University of Cincinnati, Cincinnati, OH 45221, USA
4. Department of Mech. and Aerospace Eng., University of Missouri at Columbia, Columbia, MO 65211, USA
5. Global Contour Inc., Rockwall, Texas 750837, USA