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Akazawa, Daisuke; Sasaki, Takehiko*; Nagasaka, Masanari*; Shiga, Motoyuki
Journal of Chemical Physics, 156(4), p.044202_1 - 044202_7, 2022/01
Times Cited Count：3 Percentile：47.23(Chemistry, Physical)The hydration structure of cellulose is very important for understanding the hydrolysis of cellulose at the molecular level. In this paper, we report a joint experimental and theoretical study on the X-ray absorption spectroscopy (XAS) of aqueous cellobiose, a disaccharide unit of cellulose. In the experimental part, high resolution measurements of the carbon K-edge XAS spectra were performed. It was found that the peak heights in the spectrum change considerably over the temperature range of 25 
C to 60 C, which is a reflection of the number of hydrogen bonds between cellobiose and water. We suggest that this spectral change could be useful information for identifying the hydration of cellulose in various environments.
emitters in seawater using coprecipitation with nickel hexacyanoferrate(II) and iron(III) hydroxideNakano, Masanao; Kokubun, Yuji; Sasaki, Takeshi*; Takeishi, Minoru
Radioisotopes, 58(2), p.61 - 69, 2009/02
The analytical yield of emitters in seawater by coprecipitation method with nickel hexacyanoferrate(II) and iron(III) hydroxide was confirmed using spiked radioisotope (
Cs) and stable elements. Ninety-nine % of spiked Cs was adsorbed on nickel hexacyanoferrate(II), and 88 
94% of spiked Ce, Co, Mn, Ru, Zn, Zr was adsorbed on iron(III) hydroxide. This analytical method is considered tobe very efficient and practical for environmental radiation monitoring from the view of quick and simple operation, especially easy analysis of plural samples.
Kuroiwa, Masahide*; Sasaki, Masanao*; Fujii, Susumu*; Matsumoto, Nobuhiko*; Ogiwara, Norio; Arai, Hideyuki*
no journal, ,
no abstracts in English
Ishibashi, Ryo*; Hirosaka, Kazuma*; Shibata, Masatoshi*; Sasaki, Masana*; Tsuchiya, Akiyuki*; Nemoto, Yoshiyuki
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Yamashita, Shinichiro; Mohamad, A. B.; Ioka, Ikuo; Nemoto, Yoshiyuki; Kawanishi, Tomohiro; Kaji, Yoshiyuki; Osaka, Masahiko; Murakami, Nozomu*; Owaki, Masao*; Sasaki, Masana*; et al.
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Japan's Accident Tolerant Fuel (ATF) research and development (R&D) program has been conducted since 2015 in cooperation with power plant providers, fuel venders and universities for making the most use of the experiences in R&D, practical design, and evaluations of fuels and cores of commercial Light Water Reactors (LWRs). An overview of the present R&D progress is given, in relation to the role of Japan Atomic Energy Agency (JAEA) in the program. The ATF candidate materials currently under consideration are the following three claddings: the silicon carbide (SiC) composite which is potentially applicable for Pressurized Water Reactor (PWR) and Boiling Water Reactor (BWR), the FeCrAl steel strengthened by dispersion of fine oxide particles (FeCrAl-ODS) for BWR, and Cr-coated zircalloy claddings for PWR. In addition to the cladding materials, R&D on the SiC-made BWR channel box and accident tolerant control rods are also underway.
Ishibashi, Ryo*; Hirosaka, Kazuma*; Shibata, Masatoshi*; Sasaki, Masana*; Nemoto, Yoshiyuki
no journal, ,
no abstracts in English
Ishibashi, Ryo*; Hirosaka, Kazuma*; Ikegawa, Tomohiko*; Shibata, Masatoshi*; Sasaki, Masana*; Tsuchiya, Akiyuki*; Pham, V. H.; Kurata, Masaki; Nemoto, Yoshiyuki
no journal, ,
no abstracts in English
