Dr. Chang received his Ph.D. in nuclear engineering from MIT in 1981. He is a professor at KAIST and sits on OECD’s NEA (Nuclear Energy Agency) Committee on the Safety of Nuclear Installations (CSNI). His research interests are in nuclear safety assessment, including critical heat flux phenomena, sodium-cooled fast reactor safety analysis and design, thermal-hydraulic characteristic research on nano-fluids, spent nuclear fuel repository and storage, and gas-cooled reactor safety analysis.