Modeling Framework for Detecting HEU in Seaborne Containers Citation: Y. Ding, “Modeling Framework for Detecting HEU in Seaborne Containers”, Presented at the University of Southern California, on February 19, 2009. Associated Projects: 1. SHIELD (Smuggled HEU Interdiction through Enhanced anaLysis and Detection): A Framework for Developing Novel Detection Systems Focused on Interdicting Shielded HEU,