Congratulations to Carl Hart, who successfully obtained his Ph.D. with his dissertation entitled “On a Combined Adaptive Tertrahederal Tracing and Edge Diffraction Model”.  His major advisor was Dr. Siu-Kit Lau. Carl is currently a post-doctoral research position with the US Army Corps Research Lab in Hanover, NH, where he’ll be working on outdoor noise under Dr. Keith Wilson.  He was hooded by Dr. Lau in the Nebraska night in the ASA meeting in Providence, RI on May 7.