1. University of California–San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
2. General Atomics, PO Box 85608, San Diego, California 92186-5608, USA
3. Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, Tennessee 37831, USA
4. CompX Corporation, P.O. Box 2672, Del Mar, California 92014, USA
5. Sandia National Laboratory, PO Box 5800, Albuquerque, New Mexico 87185, USA