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Temleitner, L.*; Hattori, Takanori; Abe, Jun*; Nakajima, Yoichi*; Pusztai, L.*
Molecules (Internet), 26(5), p.1218_1 - 1218_12, 2021/03
Times Cited Count：1 Percentile：0(Biochemistry & Molecular Biology)Total structure factors of per-deuterated methanol and heavy water, CD
OD and D
O, have been determined across the entire composition range at pressures of up to 1.2 GPa, by neutron diffraction. Largest variations due to increasing pressure were observed below 
5 
, mostly as shifts of the first and second maxima. Molecular dynamics computer simulations been conducted at the experimental pressures to interpret neutron diffraction results. The peak shifts mentioned above could be qualitatively reproduced by simulations. In order to reveal the influence of changing pressure on the local intermolecular structure, simulated structures have been analyzed in terms of hydrogen bond related partial radial distribution functions and size distributions of hydrogen bonded cyclic entities. Distinct differences between pressure dependent structures of water-rich and methanol-rich composition regions have been revealed.
Shudo, Yasuyuki*; Izumi, Atsushi*; Hagita, Katsumi*; Yamada, Takeshi*; Shibata, Kaoru; Shibayama, Mitsuhiro*
Macromolecules, 51(16), p.6334 - 6343, 2018/08
Times Cited Count：10 Percentile：40.7(Polymer Science)Chen, J.; Asano, Masaharu; Yamaki, Tetsuya; Yoshida, Masaru
Journal of Membrane Science, 269(1-2), p.194 - 204, 2006/02
Times Cited Count：139 Percentile：96.24(Engineering, Chemical)To develop a highly chemically stable polymer electrolyte membrane for application in a direct methanol fuel cell (DMFC), four styrene derivative monomers, m,p-methylstyrene (MeSt), p-tert-butylstyrene (tBuSt), divinylbenzene (DVB) and bis(p,p-vinyl phenyl) ethane (BVPE) were graft copolymerized into poly(ethylene-co-tetrafluoroethylene) (ETFE) films followed by sulfonation and hydrolysis. The latter two monomers were used as crosslinkers. The graft copolymerization was carried out by the 
-ray preirradiation method. The influence of the preirradiation dose and the grafting kinetics were investigated in detail. Sulfonation of the grafted ETFE films was performed in a chlorosulfonic acid solution, by which the sulfonation ratio reached about 90%. The newly obtained membrane possesses significantly higher chemical stability than the traditional styrene/DVB-grafted membrane and six times lower methanol permeability compared to the Nafion 112 membrane. Therefore, this study reveals the possibility of the developed inexpensive four monomers-grafted membranes, which could provide an attractive alternative as a substitute for the expensive Nafion membranes for DMFC applications.
Mehta, K.*; Kojima, Takuji; Sunaga, Hiromi
Radiation Physics and Chemistry, 68(6), p.959 - 962, 2003/12
Times Cited Count：3 Percentile：25.98(Chemistry, Physical)Applicability of the existing dosimetry systems to high-power Bremsstrahlung irradiation was investigated through a dose intercomparison study, where several dosimeters were irradiated in the dose range 4-12 kGy in identical polyethylene phantoms in a Bremsstrahlung beam obtained from a 5-MeV electron accelerator. Included in the study were alanine dosimeters molded by three different binders, three types of liquid dosimeters:ceric-cerous, dichromate and ethanol-chlorobenzen (ECB), and glutamine powder. The dosimeter responses for Bremsstrahlung radiation were analyzed at the issuing laboratories, and the dose values determined using calibration based on cobalt-60 -ray irradiation. Dose values for all the three dose levels for all dosimetry systems were in good agreement of better than 3%. The results of the study demonstrate that these existing dosimetry systems have a potential for application to high-power Bremsstrahlung irradiation.
L.G.Lanuza*; E.G.Cabalfin*; Kojima, Takuji; Tachibana, Hiroyuki
IAEA-TECDOC-1070, p.337 - 344, 1999/03
no abstracts in English
; Omoto, Akira*; *; *; *; *; *; *; *; *; et al.
Enerugi, Shigen Gakkai Dai-11-Kai Kenkyu Happyokai Koen Rombunshu, p.33 - 38, 1992/00
no abstracts in English
JAERI-M 90-054, 57 Pages, 1990/03
no abstracts in English
Journal of Radioanalytical and Nuclear Chemistry, 123(2), p.619 - 631, 1988/02
Times Cited Count：24 Percentile：88.29(Chemistry, Analytical)no abstracts in English
Shimizu, Saburo; ; Nakajima, Hayato; Ikezoe, Yasumasa;
Int.J.Hydrogen Energy, 12(10), p.687 - 691, 1987/10
Times Cited Count：2 Percentile：46.48(Chemistry, Physical)no abstracts in English
; Shimizu, Saburo; Nakajima, Hayato; Ikezoe, Yasumasa;
Int.J.Hydrogen Energy, 12(8), p.555 - 559, 1987/08
Times Cited Count：4 Percentile：58.19(Chemistry, Physical)no abstracts in English
Fresenius'Z.Anal.Chem., (326), p.525 - 527, 1987/00
no abstracts in English
; Shimizu, Saburo; Nakajima, Hayato; ; Ikezoe, Yasumasa
Int.J.Hydrogen Energy, 11(9), p.571 - 575, 1986/00
Times Cited Count：3 Percentile：54.39(Chemistry, Physical)no abstracts in English
; Shimizu, Saburo; Nakajima, Hayato; ; Ikezoe, Yasumasa
Hydrogen Energy,Proc.5th World Conf., p.457 - 465, 1984/00
no abstracts in English
Fujimura, Takashi; Kaetsu, Isao
Appl.Biochem.Biotechnol., 8, p.145 - 151, 1983/00
Times Cited Count：14 Percentile：48.82(Biochemistry & Molecular Biology)no abstracts in English
-ray-induced reactions of carbon monoxide-hydrogen mixtures at elevated pressuresInt.J.Appl.Radiat.Isot., 34(3), p.559 - 564, 1983/00
no abstracts in English
Fujimura, Takashi; Kaetsu, Isao
Int.J.Appl.Radiat.Isot., 34(6), p.929 - 931, 1983/00
Times Cited Count：13 Percentile：91.35(Nuclear Science & Technology)no abstracts in English
Sato, Shoichi; Shimizu, Saburo; Nakajima, Hayato; Ikezoe, Yasumasa
Int.J.Hydrogen Energy, 8(1), p.15 - 22, 1983/00
Times Cited Count：13 Percentile：85.19(Chemistry, Physical)no abstracts in English
Ikezoe, Yasumasa; ; *
Bulletin of the Chemical Society of Japan, 47(6), p.1557 - 1558, 1974/06
Times Cited Count：0no abstracts in English
