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Yoshida, Hisao*; Yamamoto, Akira*; Hosokawa, Saburo*; Yamazoe, Seiji*; Kikkawa, Soichi*; Hara, Kenji*; Nakamura, Mitsutaka; Kamazawa, Kazuya*; Tanaka, Tsunehiro*
Topics in Catalysis, 64(9-12), p.660 - 671, 2021/08
Times Cited Count:2 Percentile:12.08(Chemistry, Applied)Yamazoe, Seiji*; Yamamoto, Akira*; Hosokawa, Saburo*; Fukuda, Ryoichi*; Hara, Kenji*; Nakamura, Mitsutaka; Kamazawa, Kazuya*; Tsukuda, Tatsuya*; Yoshida, Hisao*; Tanaka, Tsunehiro*
Catalysis Science & Technology, 11(1), p.116 - 123, 2021/01
Times Cited Count:5 Percentile:35.71(Chemistry, Physical)Tsuda, Shuichi; Yoshida, Tadayoshi; Nakahara, Yukio; Sato, Tetsuro; Seki, Akiyuki; Matsuda, Norihiro; Ando, Masaki; Takemiya, Hiroshi; Tanigaki, Minoru*; Takamiya, Koichi*; et al.
JAEA-Technology 2013-037, 54 Pages, 2013/10
JAEA has been performing dose rate mapping in air using a car-borne survey system KURAMA-II. The KURAMA system is a GPS-aided mobile radiation monitoring system that has been newly developed by Kyoto University Research Reactor Institute in response to the nuclear disaster. The KURAMA system is composed of an energy-compensated scintillation survey meter for measuring dose rate, electric device for controlling both the dose rates and the position data from a GPS module, a computer server for processing and analyzing data from KURAMA, and client PCs for providing for end users. The KURAMA-II has been improved in small-packaging, durability, and automated data transmission. In consequence, dose rate mapping in wide area has become possible in shorter period of time. This report describes the construction of KURAMA-II, its application and a suggestion of how to manage a large number of KURAMA-II.
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.
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.
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
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