Kouhei Oguma, Hiroshi Matsushita, Takayuki Hirayama, Hiroyuki Kawamura, Tomohiro Yasuda and Hajime Mase : Roughness factor of two type wave dissipating blocks estimated by overtopping experiments, Proceedings of the 10th International Conference on Asian and Pacific Coasts (APAC2019), pp.137-143, Hanoi, Vietnam, 2019.
Makoto Murata, Ryokei Azuma, Hiroshi Matsushita and Kouhei Oguma : Experimental study on influence of arrangement and shape of wave-dissipating blocks to flow characteristics, Proceedings of the 38th International Association for Hydro-environment Engineering and Research World Congress (IAHR2019), pp.2739-2744, Panama City, Panama, 2019.
Kouhei Oguma, Hiroshi Matsushita, Ryoukei Azuma, Takashi Nakanishi, Hajime Mase and Tetsuya Hiraishi : Experimental Study of Wave-Dissipating Block Shape’s Effects on Flow Characteristics Around the Block, Proceedings of the 28th International Ocean and Polar Engineering Conference(ISOPE), pp.1245-1250, Sapporo, Japan, 2018.
Naozumi Yoshizuka, Hiroshi Matsushita, Takashi Nakanishi, Hirokazu Nishimura and Kouhei Oguma : Disaster Prevention Facilities and Marine Environment Improvement Effect, Proceedings(Environment) of the 34th PIANC-World Congress, 13p., Panama City, Panama, 2018. http://pianc.info/proceedings
Hiroshi Matsushita, Naozumi Yoshizuka, Tomihiro Iiboshi, Manabu Hamada, Hirokazu Nishimura and Pham Thanh Hai : Application example of armor blocks including new flat-type block to the tsunami seawall, Proceedings of the 1st International Conference on Sustainability in Civil Engineering(ICSCE), pp.255-258, Vietnam, Hanoi, 2016.