1. a Applied Research Associates, Inc. , 4300 San Mateo Blvd NE, Ste A-220, Albuquerque , NM , 87110 , USA
2. b Air Force Research Laboratory , 139 Barnes Drive, Suite 2, Tyndall AFB , FL , 32403-5323 , USA
3. c Mechanical and Aerospace Engineering, University of California , Davis , CA , 95616-5294 , USA