Hai S. Lew of EL's Materials and Structural Systems Division has worked at NIST for over 49 years. He joined the National Bureau of Standards in 1968 as a structural research engineer. As Senior Research Engineer, he carries out a broad range of research programs in the fields of structural and earthquake engineering. Dr. Lew has published over 150 articles, papers, and reports on the performance of structures, construction safety, failure investigations, and earthquake engineering.