WEST LAFAYETTE, Ind. - Two Purdue University faculty members have received Army Research Laboratory Director’s Challenge Coin awards from the U.S. Department of Defense for developing technologies credited with saving lives on the battlefield. The researchers are Edward J. Delp, CERIAS Fellow and the Charles William Harrison Distinguished Professor of Electrical and Computer Engineering and Professor of Biomedical Engineering, and William J. Chappell, an associate professor of electrical and computer engineering.