Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Terunuma, Akihiro; Mimura, Ryuji; Nagashima, Hisao; Aoyagi, Yoshitaka; Hirokawa, Katsunori*; Uta, Masato; Ishimori, Yuu; Kuwabara, Jun; Okamoto, Hisato; Kimura, Yasuhisa; et al.
JAEA-Review 2016-008, 98 Pages, 2016/07
Japan Atomic Energy Agency formulated the plan to achieve the medium-term target in the period of April 2010 to March 2015(hereinafter referred to as "the second medium-term plan"). JAEA determined the plan for the business operations of each year (hereinafter referred to as "the year plan"). This report is that the Sector of Decommissioning and Radioactive Waste Management has summarized the results of the decommissioning technology development and decommissioning of nuclear facilities which were carried out in the second medium-term plan.
Kitatsuji, Yoshihiro; Aoyagi, Hisao*
Review of Polarography, 52(1), p.51 - 53, 2006/05
no abstracts in English
Aoyagi, Hisao*; Kitatsuji, Yoshihiro; Yoshida, Zenko; Kihara, Sorin*
Analytica Chimica Acta, 538(1-2), p.283 - 289, 2005/05
Times Cited Count:14 Percentile:41.71(Chemistry, Analytical)Redox behavior of Np(III), (IV), (V) and (VI) ions in aqueous perchloric, nitric and sulphuric acid solutions was elucidated by using column electrodes connected in series in a flow system. Using a glassy carbon fiber working electrode as the column electrode was found to be very useful for the investigation of current-potential relations of not only reversible redox processes such as Np(VI)/(V) or Np(IV)/(III) but also irreversible processes such as Np(V)/(IV) or Np(V)/(III), the latter not observed by conventional voltammetry which uses a glassy carbon or platinum electrode. Quantitative electrolysis could be executed even if the redox process was completely irreversible by the use of the column electrodes. By taking advantage of column electrode electrolysis, a novel method was developed for the rapid preparation of a neptunium species of a desired oxidation state, including unstable species. The multi-step column electrode system was demonstrated to be useful for the coulometric determination and speciation of Np(IV), (V) and (VI) in aqueous HNO solution as an example.
Onuki, Toshihiko; Aoyagi, Hisao*; Kitatsuji, Yoshihiro; Samadfam, M.; Kimura, Yasuhiko; Purvis, O. W.*
Journal of Environmental Radioactivity, 77(3), p.339 - 353, 2004/08
Times Cited Count:16 Percentile:34.12(Environmental Sciences)no abstracts in English
Kitatsuji, Yoshihiro; Aoyagi, Hisao; Kimura, Takaumi; Yoshida, Zenko; Kudo, Hiroshi*; Kihara, Sorin*
Journal of Nuclear Science and Technology, 39(Suppl.3), p.259 - 262, 2002/11
Controlled-potential electrolysis (CPE) method for the transfer of an ion at the interface of two immiscible electrolyte solutions has been developed. The CPE method was applied to the transfer of actinide ions such as UO and Am between aqueous (W) and nitrobenzene (NB) solutions. The transfer of actinide ions from W to NB facilitated by bis(diphenyl-phosphoryl)methane (BDPPM) was studied, and it was found that CPE was successfully applied to the electrolytic separation of U(VI) and Am(III) from W to NB containing BDPPM.
Onuki, Toshihiko; Samadfam, M.; Kimura, Yasuhiko; Kitatsuji, Yoshihiro; Aoyagi, Hisao; Purvis, O. W.*
Proceedings of the International Workshop on Distribution and Speciation of Radionuclides in the Environment, p.174 - 180, 2000/00
no abstracts in English
Kihara, Sorin*; Yoshida, Zenko; Aoyagi, Hisao; Maeda, Koji*; Shirai, Osamu; Kitatsuji, Yoshihiro; Yoshida, Yumi*
Pure and Applied Chemistry, 71(9), p.1771 - 1807, 1999/09
Times Cited Count:52 Percentile:83.32(Chemistry, Multidisciplinary)no abstracts in English
Kitatsuji, Yoshihiro; Aoyagi, Hisao; Yoshida, Zenko; Kihara, Sorin*
Analytica Chimica Acta, 387, p.181 - 187, 1999/00
Times Cited Count:11 Percentile:39.84(Chemistry, Analytical)no abstracts in English
Kitatsuji, Yoshihiro; Aoyagi, Hisao; Yoshida, Zenko; Kihara, Sorin*
Analytical Sciences, 14, p.67 - 70, 1998/02
Times Cited Count:11 Percentile:38.83(Chemistry, Analytical)no abstracts in English
K-W.Kim*; J-D.Kim*; Aoyagi, Hisao; Yoshida, Zenko
Journal of Nuclear Science and Technology, 31(4), p.329 - 334, 1994/04
Times Cited Count:9 Percentile:63.38(Nuclear Science & Technology)no abstracts in English
Yoshida, Zenko; Aoyagi, Hisao; Meguro, Yoshihiro; Kitatsuji, Yoshihiro; Kihara, Sorin*
Journal of Alloys and Compounds, 213-214, p.324 - 327, 1994/00
Times Cited Count:8 Percentile:57.78(Chemistry, Physical)no abstracts in English
Yoshida, Zenko; Aoyagi, Hisao; ; Takeishi, Hideyo; Sasaki, Yuji; Uno, Seiichiro; Tachikawa, Enzo
Journal of Alloys and Compounds, 213-214, p.453 - 455, 1994/00
Times Cited Count:7 Percentile:54.84(Chemistry, Physical)no abstracts in English
K.-W.Kim*; J.-D.Kim*; Aoyagi, Hisao; ; Yoshida, Zenko
Journal of Nuclear Science and Technology, 30(6), p.554 - 559, 1993/06
Times Cited Count:6 Percentile:56.02(Nuclear Science & Technology)no abstracts in English
Aoyagi, Hisao
Bunseki, 1993(6), 452 Pages, 1993/00
no abstracts in English
Sasaki, Yuji; Aoyagi, Hisao; Takeishi, Hideyo; Yoshida, Zenko
Physica C, 191, p.347 - 353, 1992/00
Times Cited Count:7 Percentile:55.21no abstracts in English
Sasaki, Yuji; Aoyagi, Hisao; Takeishi, Hideyo; Yoshida, Zenko
Analytical Sciences, 7(Suppl.), p.1201 - 1204, 1991/00
no abstracts in English
Yoshida, Zenko; Aoyagi, Hisao; *
Z. Anal. Chem., 340, p.403 - 409, 1991/00
no abstracts in English
; Aoyagi, Hisao; Yoshida, Zenko
JAERI-M 87-084, 10 Pages, 1987/06
no abstracts in English