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Nagae, Daisuke*; Abe, Yasushi*; Okada, Shunsuke*; Omika, Shuichiro*; Wakayama, Kiyoshi*; Hosoi, Shun*; Suzuki, Shinji*; Moriguchi, Tetsuro*; Amano, Masamichi*; Kamioka, Daiki*; et al.
Nuclear Instruments and Methods in Physics Research A, 986, p.164713_1 - 164713_7, 2021/01
Times Cited Count：5 Percentile：64.12(Instruments & Instrumentation)
F from 
O
?Tang, T. L.*; Uesaka, Tomohiro*; Kawase, Shoichiro; Beaumel, D.*; Dozono, Masanori*; Fujii, Toshihiko*; Fukuda, Naoki*; Fukunaga, Taku*; Galindo-Uribarri, A.*; Hwang, S. H.*; et al.
Physical Review Letters, 124(21), p.212502_1 - 212502_6, 2020/05
Times Cited Count：14 Percentile：73.46(Physics, Multidisciplinary)The structure of a neutron-rich F nucleus is investigated by a quasifree (
) knockout reaction. The sum of spectroscopic factors of 
orbital is found to be 1.0 
0.3. The result shows that the O core of F nucleus significantly differs from a free O nucleus, and the core consists of 
35% O
, and 65% excited O. The result shows that the O core of F nucleus significantly differs from a free O nucleus. The result may infer that the addition of the 
proton considerably changes the neutron structure in F from that in O, which could be a possible mechanism responsible for the oxygen dripline anomaly.
Takamura, Shuichi*; Kado, Shinichiro*; Fujii, Takashi*; Fujiyama, Hiroshi*; Takabe, Hideaki*; Adachi, Kazuo*; Morimiya, Osamu*; Fujimori, Naoji*; Watanabe, Takayuki*; Hayashi, Yasuaki*; et al.
Kara Zukai, Purazuma Enerugi No Subete, P. 164, 2007/03
no abstracts in English
Fujii, Kentaro; Fujii, Shinichiro*; Akimitsu, Nobuyoshi*; Tsukimoto, Mitsutoshi*; Kojima, Shuji*
no journal, ,
ATP (Adenosine tri-phosphate), one of ribonucleic acids, acts as an intracellular energy transfer. ATP is used as a substrate to synthesized messenger RNA and as a ligand of inter-cellular signaling. SPring-8 beam line BL23SU can produce high resolution monochromatic soft X-rays. In this study, we analyzed the soft X-ray induced radiation damage of ATP by various biological assessments, such as energy donor activity, genetic information transfer activity and inter-cellular signaling activity.
Fujii, Kentaro; Fujii, Shinichiro*; Akimitsu, Nobuyoshi*; Tsukimoto, Mitsutoshi*; Kojima, Shuji*
no journal, ,
We analyze the luciferase activity to assess the energy transfer activity and the genetic information transfer activity and evaluate the change in activity as an inter-cellular signaling molecules by measuring ATP receptor-mediated phosphorylation of extra cellular signal-regulated kinase 1/2 (ERK1/2). In addition to the biological effect, we have also measured the molecular alterations using X-ray absorption and electro spray mass spectrometry (ESIMS). We observed attenuation of ATP receptor-mediated phosphorylation of ERK 1/2 and luciferase activity by the soft X-ray irradiations. Moreover, we observed the reduction of nucleotide from the X-ray absorption spectra and ESIMS. These results suggest that certain alteration of ATP structure induced by soft X-ray affects the biological function of ATP.
Fujii, Kentaro; Fujii, Shinichiro*; Kato, Dai*; Akimitsu, Nobuyoshi*; Tsukimoto, Mitsutoshi*; Yokoya, Akinari; Niwa, Osamu*; Kojima, Shuji*
no journal, ,
no abstracts in English
Fujii, Kentaro; Fujii, Shinichiro*; Kato, Dai*; Tsukimoto, Mitsutoshi*; Akimitsu, Nobuyoshi*; Narita, Ayumi; Nakajima, Takafumi*; Ide, Shunta*; Salam, K. A.*; Niwa, Osamu*; et al.
no journal, ,
Sekio, Yoshihiro; Yamashita, Shinichiro; Sakaguchi, Norihito*; Shibayama, Tamaki*; Watanabe, Seiichi*; Tokita, Shun*; Fujii, Hiromichi*; Sato, Yutaka*; Kokawa, Hiroyuki*
no journal, ,
In order to improve ductility loss by helium embrittlement (or grain boundary embrittlement) induced under high temperature and neutron irradiation dose in nickel alloys which are expected to have high-temperature phase stability under non-irradiation, the grain boundary engineering was applied for NIMONIC PE16 to enhance the grain boundary strength. And, its high temperature tensile properties under non-irradiation were investigated as the first approach. As a result, the temperature dependence of the yield stress in the grain boundary engineered (GBE) PE16 was similar to that in NIMINIC PE16, but the yield stress was slightly lower and the uniform elongation was slightly higher at each temperature in GBE PE16 comparing to NIMINIC PE16. This would be caused by grain coarsening due to some heat treatments. If the gain size of GBE PE16 is optimized, tensile properties of GBE PE16 would be the same or more than that of NIMONIC PE16.
Yamashita, Shinichiro; Sekio, Yoshihiro; Sakaguchi, Norihito*; Shibayama, Tamaki*; Watanabe, Seiichi*; Tokita, Shun*; Fujii, Hiromichi*; Sato, Yutaka*; Kokawa, Hiroyuki*
no journal, ,
no abstracts in English
