Dr. Nakashima has a background in both engineering and agriculture. Before joining BRI Dept. of Structural Engineering, he engaged as JSPS research fellowship at RISH, Kyoto University, and served as an assistant professor at Utsunomiya University. His research focuses on the development of structural design methods for joints in mass timber buildings, as well as the seismic resilience performance of wooden structures, including both traditional wooden houses and modern mass timber buildings.