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)Komatsu, Kazuki*; Iwasaki, Tsugumi*; Murata, Kosuke*; Yamashiro, Hideaki*; Goh, V. S. T.*; Nakayama, Ryo*; Fujishima, Yohei*; Ono, Takumi*; Kino, Yasushi*; Shimizu, Yoshinaka*; et al.
Reproduction in Domestic Animals, 56(3), p.484 - 497, 2021/03
Times Cited Count：11 Percentile：81.81(Agriculture, Dairy & Animal Science)We have established an archive system of livestock and wild animals from the surrounding ex-evacuation zone. Wildlife within the alert zone have been exposed to low-dose-rate (LDR) radiation for a long and continuous time. In this study, we analysed the morphological characteristics of the testes and in vitro fertilization (IVF) capacity of cryopreserved sperm of raccoons from the ex-evacuation zone of the FDNPP accident. This study revealed that the chronic and LDR radiation exposure associated with the FDNPP accident had no adverse effect on the reproductive characteristics and functions of male raccoons.
Okada, Michio*; Tsuda, Yasutaka*; Oka, Kohei*; Kojima, Kazuki*; Di
o, W. A.*; Yoshigoe, Akitaka; Kasai, Hideaki*
Scientific Reports (Internet), 6, p.31101_1 - 31101_8, 2016/08
Times Cited Count：31 Percentile：73.37(Multidisciplinary Sciences)We report results of our experimental and theoretical studies on the oxidation of Cu-Au alloy surfaces, viz., Cu
Au(111), CuAu(111), and AuCu(111), using hyperthermal O
molecular beam (HOMB). We observed strong Au segregation to the top layer of the corresponding clean (111) surfaces. This forms a protective layer that hinders further oxidation into the bulk. The higher the concentration of Au in the protective layer formed, the higher the protective efficacy. As a result, of the three Cu-Au surfaces studied, AuCu(111) is the most stable against dissociative adsorption of O, even with HOMB. We also found that this protective property breaks down for oxidations occurring at temperatures above 300 K.
Jarrige, I.*; Ishii, Kenji; Matsumura, Daiju; Nishihata, Yasuo; Yoshida, Masahiro*; Kishi, Hirofumi*; Taniguchi, Masashi*; Uenishi, Mari*; Tanaka, Hirohisa*; Kasai, Hideaki*; et al.
ACS Catalysis, 5(2), p.1112 - 1118, 2015/02
Times Cited Count：21 Percentile：47.37(Chemistry, Physical)Asazawa, Koichiro*; Kishi, Hirofumi*; Tanaka, Hirohisa*; Matsumura, Daiju; Tamura, Kazuhisa; Nishihata, Yasuo; Saputro, A. G.*; Nakanishi, Hiroshi*; Kasai, Hideaki*; Artyushkova, K.*; et al.
Journal of Physical Chemistry C, 118(44), p.25480 - 25486, 2014/11
Times Cited Count：16 Percentile：45.20(Chemistry, Physical)Au(111)Oka, Kohei*; Tsuda, Yasutaka*; Makino, Takamasa*; Okada, Michio*; Hashinokuchi, Michihiro*; Yoshigoe, Akitaka; Teraoka, Yuden; Kasai, Hideaki*
Physical Chemistry Chemical Physics, 16(36), p.19702 - 19711, 2014/08
Times Cited Count：12 Percentile：41.84(Chemistry, Physical)Nishihata, Yasuo; Tanaka, Hirohisa*; Mitachi, Senshu*; Kasai, Hideaki*
Kogyo Zairyo, 62(5), p.41 - 44, 2014/05
no abstracts in English
Au(111) oxidation; Oxygen induced Cu segregation and the protective Au layer profileTsuda, Yasutaka*; Oka, Kohei*; Makino, Takamasa*; Okada, Michio*; Dio, W. A.*; Hashinokuchi, Michihiro*; Yoshigoe, Akitaka; Teraoka, Yuden; Kasai, Hideaki*
Physical Chemistry Chemical Physics, 16(8), p.3815 - 3822, 2014/02
Times Cited Count：15 Percentile：49.73(Chemistry, Physical)O(111) surfaces; The Case of NO dissociationKishi, Hirofumi*; Padama, A. A. B.*; Arevalo, R. L.*; Moreno, J. L. V.*; Kasai, Hideaki*; Taniguchi, Masashi*; Uenishi, Mari*; Tanaka, Hirohisa*; Nishihata, Yasuo
Journal of Physics; Condensed Matter, 24(26), p.262001_1 - 262001_5, 2012/07
Times Cited Count：9 Percentile：37.11(Physics, Condensed Matter)no abstracts in English
O(111) surfaces; A Density functional theory based studyPadama, A. A. B.*; Kishi, Hirofumi*; Arevalo, R. L.*; Moreno, J. L. V.*; Kasai, Hideaki*; Taniguchi, Masashi*; Uenishi, Mari*; Tanaka, Hirohisa*; Nishihata, Yasuo
Journal of Physics; Condensed Matter, 24(17), p.175005_1 - 175005_6, 2012/05
Times Cited Count：40 Percentile：78.77(Physics, Condensed Matter)no abstracts in English
on Cu surfacesMoritani, Kosuke*; Tsuda, Muneyuki*; Teraoka, Yuden; Okada, Michio*; Yoshigoe, Akitaka; Fukuyama, Tetsuya*; Kasai, Toshio*; Kasai, Hideaki*
Journal of Physical Chemistry C, 111(27), p.9961 - 9967, 2007/07
Times Cited Count：15 Percentile：45.20(Chemistry, Physical)We report an X-ray photoemission study of the dissociative adsorption of O at Cu(111), (001), and (110) surfaces with an O molecular beam generated with a variable temperature nozzle. The O-uptake curves, which are produced from precisely measured O-1s peaks, indicate that the dissociative absorption is enhanced as the nozzle temperature is increased up to 1000 K for the normal incidence of O at a kinetic energy of 0.5 eV. However, further increasing the nozzle temperature to 1400 K reduces the probability of dissociativeadsorption. These results suggest that vibrational excitations of incident O assist dissociative adsorption while rotational excitations hinder it.
moleculeOkada, Michio*; Moritani, Kosuke; Yoshigoe, Akitaka; Teraoka, Yuden; Nakanishi, Hiroshi*; Dio, W. A.*; Kasai, Hideaki*; Kasai, Toshio*
Chemical Physics, 301(2-3), p.315 - 320, 2004/06
Times Cited Count：14 Percentile：41.34(Chemistry, Physical)O molecules adsorb dissociatively on Cu{1 0 0} surfaces to form the oxygen-saturated surface with the coverage of 0.5 ML. It has been found that the oxidation has proceeded more than 0.5 ML by using 2.3-eV-O molecular beams. The kinetics of the adsorption reaction was the first order. This reveals that the collision-induced adsorption results in the adsorption of only one oxygen atom. On the other hand, the reaction kinetics showed the second order in the case of 0.6-eV-O incidence. This implies that tentative molecular adsorption takes place in such low collision energy case.
Kubo, Hirotaka; Sakasai, Akira; ; Koide, Yoshihiko; Akaoka, Nobuo*; ; Chiba, Shinichi; Sugie, Tatsuo; Takeuchi, Hiroshi; Yokomizo, Hideaki; et al.
Photon Factory Activity Report, P. 277, 1989/00
no abstracts in English
Kubo, Hirotaka; Sugie, Tatsuo; Sakasai, Akira; Koide, Yoshihiko; ; Yokomizo, Hideaki*; ; JT-60 Team; Tanaka, Kenichiro*; ; et al.
Review of Scientific Instruments, 59(8), p.1515 - 1517, 1988/09
Times Cited Count：27 Percentile：91.04(Instruments & Instrumentation)no abstracts in English
Yokomizo, Hideaki; Takeuchi, Hiroshi; Sugie, Tatsuo; Ogiwara, Norio; Sato, Masayasu; Nagashima, Akira; ; Nakamura, Yukiharu; Nishitani, Takeo; Neyatani, Yuzuru; et al.
Fusion Engineering and Design, 5, p.117 - 138, 1987/00
Times Cited Count：16 Percentile：80.78(Nuclear Science & Technology)no abstracts in English
Au(111) surfaceTsuda, Yasutaka*; Oka, Kohei*; Makino, Takamasa*; Lehmuskoski, J.*; Okada, Michio*; Dio, W. A.*; Kasai, Hideaki*; Yoshigoe, Akitaka; Teraoka, Yuden
no journal, ,
no abstracts in English
Au(111) oxidationTsuda, Yasutaka*; Makino, Takamasa*; Hashinokuchi, Michihiro*; Okada, Michio*; Oka, Kohei*; Dio, W. A.*; Kasai, Hideaki*; Yoshigoe, Akitaka; Teraoka, Yuden
no journal, ,
on Cu surfacesMoritani, Kosuke*; Tsuda, Muneyuki*; Teraoka, Yuden; Okada, Michio*; Yoshigoe, Akitaka; Fukuyama, Tetsuya*; Kasai, Toshio*; Kasai, Hideaki*
no journal, ,
Oxygen molecules adsorbe dissociatively at Cu(111), Cu(110), and Cu(001) surfaces. The oxygen uptake curves were investigated by using supersonic molecular beam techniques and photoemission spectroscopy with synchrotron radiation. Adsorption probability increased with increasing translational kinetic energy of oxygen molecules. Vibrational and rotational levels of oxygen molecules were excited by elevation of nozzle temperature up to 1400 K keeping the incident energy of 0.5 eV. Although the adsorption probability increased with increasing nozzle temperature by 1000 K, it decreased inversely around 1400 K. These phenomena were interpreted as adsorption probability increase by vibrational excitation and decrease by rotational excitation.
