Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Akira KIRISHIMA"'
Autor:
Ryutaro Tonna, Takayuki Sasaki, Yuji Kodama, Taishi Kobayashi, Daisuke Akiyama, Akira Kirishima, Nobuaki Sato, Yuta Kumagai, Ryoji Kusaka, Masayuki Watanabe
Publikováno v:
Nuclear Engineering and Technology, Vol 55, Iss 4, Pp 1300-1309 (2023)
Simulated debris was synthesized using UO2, Zr, and stainless steel and a heat treatment method under inert or oxidizing conditions. The primary U solid phase of the debris synthesized at 1473 K under inert conditions was UO2, whereas a (U, Zr)O2 sol
Externí odkaz:
https://doaj.org/article/acb6a4921a194ec4be7aa209be3aaf4f
Publikováno v:
Mechanical Engineering Journal, Vol 1, Iss 4, Pp TEP0027-TEP0027 (2014)
Calcium silicate hydrate (CSH) is a main component of cement-based material required for constructing the geological repository. As in many countries, since the repository in Japan is constructed below water table, we must consider the interaction of
Externí odkaz:
https://doaj.org/article/7203b68aebae409aa50a8b248e8ac61d
Autor:
Takumi Yomogida, Daisuke Akiyama, Kazuki Ouchi, Yuta Kumagai, Kotaro Higashi, Yoshihiro Kitatsuji, Akira Kirishima, Naomi Kawamura, Yoshio Takahashi
Publikováno v:
Inorganic Chemistry. 61:20206-20210
Autor:
Yuta Kumagai, Ryoji Kusaka, Masami Nakada, Masayuki Watanabe, Daisuke Akiyama, Akira Kirishima, Nobuaki Sato, Takayuki Sasaki
Publikováno v:
Journal of Nuclear Science and Technology. 59:961-971
The fuel debris generated in the accident at the Tokyo Electric Power Company’s Fukushima Daiichi Nuclear Power Station has been subject to water and ionizing radiation for years and will be until retrieval. Therefore, we investigated the potential
Publikováno v:
Journal of the Atomic Energy Society of Japan. 64:290-295
Publikováno v:
High Temperature Materials and Processes. 42
A powder mixture of UO2 and TiO2 was mechanochemically treated in a planetary ball mill under Ar atmosphere for 1 h using a tungsten carbide vial and balls as the milling medium. Such mechanochemical (MC) treatment reduced the crystallinity of UO2 an
Publikováno v:
Journal of Solution Chemistry. 50:1432-1442
The complex formation of protactinium(V) with ethylenediaminetetraacetic acid (EDTA) was studied at tracer concentration ([233Pa(V)] ~ 10−12 mol·L−1) by the solvent extraction technique at 25 °C, I = 1.0, and different acidities ([HClO4] = 1.0,
Autor:
Daisuke Akiyama, Tasuku Ishii, Yutaka Masaki, Tadashi Narabayashi, Akira Kirishima, Nobuaki Sato
Publikováno v:
Journal of Nuclear and Radiochemical Sciences. 21:1-6
Autor:
Akira Kirishima, Shingo Kimuro, Yuta Kumagai, Akira Kitamura, Daisuke Akiyama, Masayuki Watanabe, John McGrady
Publikováno v:
RSC Advances. 11:28940-28948
In the event of nuclear waste canister failure in a deep geological repository, groundwater interaction with spent fuel will lead to dissolution of uranium (U) into the environment. The rate of U dissolution is affected by bicarbonate (HCO3−) conce
Autor:
McGrady, John, Yuta Kumagai, Yoshihiro Kitatsuji, Akira Kirishima, Daisuke Akiyama, Masayuki Watanabe
Publikováno v:
RSC Advances; 2023, Vol. 13 Issue 40, p28021-28029, 9p