1. Department of Materials Science and Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, USA
2. American Society for Engineering Education, 1818 N. Street Suite 600, Washington DC 20018, USA
3. US Naval Research Laboratory, 4555 Overlook Ave SW, Washington DC 20375, USA
4. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA