1. Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
2. NASA Kennedy Space Center, Merritt Island, Florida 32899, United States
3. Currently at Gloyer-Taylor Laboratories, Tullahoma, Tennessee 37388, United States
4. NASA Ames Research Center, Mountain View, California 94035, United States
5. NASA Glenn Research Center, Cleveland, Ohio 44135, United States