Dr. Tae-Hee Lee is a Postdoctoral Research Associate at Yonsei University, specializing in concrete structural engineering. He received his integrated Master’s and Ph.D. degree in Civil Engineering from Yonsei University, where his research focused on the development and application of stiff-type polyurea for seismic retrofitting of masonry structures. His academic interests include advanced reinforcement materials, structural performance under extreme loading, and sustainable construction technologies. Dr. Lee has participated in multiple national R&D projects involving CFRP reinforcement, tubular rebars, and blast-resistant concrete structures. He has published several peer-reviewed journal articles on the mechanical behavior and performance evaluation of reinforced concrete members, and continues to work on practical structural applications combining experimental and numerical approaches.