Dr. Ralph T. Muehleisen is the Principal Building Scientist at Argonne National Laboratory and the technical lead of the Building Energy Decision and Technology Research (BEDTR) program. He received his B.S. in Electrical and Computer engineering from the University of Wisconsin-Madison in 1989 and his Ph.D. in Acoustics from Penn State in 1996. He is a Fellow of the Acoustical Society of America (ASA), an Institute of Noise Control Engineering (INCE) Board Certified Noise Control Engineer, a licensed Professional Engineer, and a LEED Accredited Professional. Dr. Muehleisen is the author of over 150 papers, presentations, and patents in areas of acoustics and building energy, and is an active member of ASA, INCE, IEEE, ASTM, IBPSA-USA, ASCE, AISC, and SBSE.