MAAN H. JAWAD, PHD is President of Global Engineering & Technology, consulting on boilers and pressure vessels for the power generation and petrochemical industries. He was Director of Engineering at the Nooter Corporation in St. Louis prior to retiring. He is a graduate of the University of Kansas and Iowa State University and a Fellow of the American Society of Mechanical Engineers. He was awarded the ASME's J. Hall Taylor Medal in 1992 for major contributions to the advancement of Boiler and Pressure Vessel Technology. JAMES R. FARR (Deceased) was Manager of Codes and Regulation at the Babcock and Wilcox Company, a Fellow of the American Society of Mechanical Engineers, and a member of the American Institute of Chemical Engineers. He is a graduate of Purdue University and served on numerous National and International Committees on pressure vessels.