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Ohshima, Hiroyuki; Morishita, Masaki*; Aizawa, Kosuke; Ando, Masanori; Ashida, Takashi; Chikazawa, Yoshitaka; Doda, Norihiro; Enuma, Yasuhiro; Ezure, Toshiki; Fukano, Yoshitaka; et al.
Sodium-cooled Fast Reactors; JSME Series in Thermal and Nuclear Power Generation, Vol.3, 631 Pages, 2022/07
This book is a collection of the past experience of design, construction, and operation of two reactors, the latest knowledge and technology for SFR designs, and the future prospects of SFR development in Japan. It is intended to provide the perspective and the relevant knowledge to enable readers to become more familiar with SFR technology.
Kurihara, Momo*; Yasutaka, Tetsuo*; Aono, Tatsuo*; Ashikawa, Nobuo*; Ebina, Hiroyuki*; Iijima, Takeshi*; Ishimaru, Kei*; Kanai, Ramon*; Karube, Jinichi*; Konnai, Yae*; et al.
Journal of Radioanalytical and Nuclear Chemistry, 322(2), p.477 - 485, 2019/11
Times Cited Count：4 Percentile：21.22(Chemistry, Analytical)We assessed the repeatability and reproducibility of methods for determining low dissolved radiocesium concentrations in freshwater in Fukushima. Twenty-one laboratories pre-concentrated three of 10 L samples by five different pre-concentration methods (prussian-blue-impregnated filter cartridges, coprecipitation with ammonium phosphomolybdate, evaporation, solid-phase extraction disks, and ion-exchange resin columns), and activity of radiocesium was measured. The z-scores for all of the 
Cs results were within 
2, indicating that the methods were accurate. The relative standard deviations (RSDs) indicating the variability in the results from different laboratories were larger than the RSDs indicating the variability in the results from each separate laboratory.
Ito, Tanio*; Tsumura, Noriko*; Takeuchi, Akira*; Ishimaru, Tsuneari; Takami, Akira*; Ikawa, Hidemasa*; Komada, Nozomi*; Yamamoto, Shuji*; Kikuchi, Shinsuke*; Miyauchi, Takahiro*; et al.
Geodynamics of Atotsugawa Fault System, p.17 - 24, 2007/00
no abstracts in English
Ishimaru, Masaru; Maeda, Shigetaka; Miura, Yoshiyuki; Suzuki, Toshiaki
no journal, ,
no abstracts in English
Ishimaru, Masaru; Aizawa, Kosuke; Maeda, Shigetaka; Okada, Taiichi*; Hirose, Megumi*; Kumagai, Yukihiro*; Isaka, Shingo*
no journal, ,
no abstracts in English
Aizawa, Kosuke; Ishimaru, Masaru; Maeda, Shigetaka; Okada, Taiichi*; Hirose, Megumi*; Kumagai, Yukihiro*; Isaka, Shingo*
no journal, ,
High strength lightweight net using aramid fiber for tornado missile was developed. In this study, the static load experiments for one rope and net shape were conducted. From the results of experiments, development policy concerning optimization of net specifications was investigated.
Aizawa, Kosuke; Ishimaru, Masaru; Maeda, Shigetaka; Okada, Taiichi*; Matsui, Hiroyuki*; Kumagai, Yukihiro*; Isaka, Shingo*
no journal, ,
The protective nets against the tornado missile are important for power plant equipment. Japan Atomic Energy Agency has developed the protective net using aramid fiber rope to aim high strength lightweight net. The net element tests and analyses were conducted to clarify the characteristic of the protective net using aramid fiber rope. The actual size net was designed based on the results of net element tests and analyses. The dynamic analysis which simulates a car crash on the designed actual size net was conducted. From the result of the dynamic analysis, it was confirmed that the protective net using aramid fiber rope has a possibility to withstand the car crash. In addition, the fire resistance test and the resistance to weather of the aramid fiber rope were conducted. The results showed that the aramid fiber rope has high performance for firing resistance and weather resistance.
