1. Nanotechnology Center, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, Arkansas 72204
2. Applied Science and Technology, ASRC Aerospace, ASRC-24 Kennedy Space Center, Orlando, Florida 32899
3. Terrestrial and Cryospheric Sciences Branch, Cold Regions Research & Engineering Laboratory, Engineer Research and Development, Center U.S. Army Corps of Engineers, Hanover, New Hampshire 03755-1290