Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Youhei Kikuchi"'
Autor:
Youhei Kikuchi, Ayano Takahashi, Yuichi Yoshimura, Madoka Sasaki, Yukako Saito, Yoshihiro Natori, Ayaka Ishii, Hideaki Wakamatsu
Publikováno v:
Organic Letters. 22:5299-5303
A palladium-catalyzed regioselective three-component coupling of ynamides was developed. The reaction proceeded smoothly to furnish the desired products when carried out at 70 °C in acetonitrile/water with potassium carbonate in the presence of 2.5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac613de344490636502d56d977cd3d54
https://doi.org/10.1021/acs.orglett.0c01426
https://doi.org/10.1021/acs.orglett.0c01426
Autor:
K. Kusano, Seiichi Wada, M. Karahashi, Keizo Ishii, Yukihiro Takahashi, Yoshihito Funaki, Hiromichi Yamazaki, Atsuki Terakawa, Youhei Kikuchi, Shigeo Matsuyama, Nobuhiko Ito, K. Sera, T. Kawamura, Y. Miura, Kazue Mizuno
Publikováno v:
International Journal of PIXE. 24:41-47
We report an elemental analysis of murine solid tumors treated with cisplatin-incorporated polymeric micelles (NC-6004) to evaluate the concentration of the drug in the tumor tissue using conventional particle-induced X-ray emission (PIXE) analysis,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::639ee9e4d79a9a8d2682a19badc73e3a
https://doi.org/10.1142/s0129083514500053
https://doi.org/10.1142/s0129083514500053
Autor:
Youhei Kikuchi, Shigeo Matsuyama, Shozo Furumoto, S. Yamauchi, Seiichi Wada, Keizo Ishii, Yoshihito Funaki, M. Karahashi, K. Kusano, Y. Nozawa, K. Kikuchi, Nobuhiko Ito, Atsuki Terakawa, K. Sera
Publikováno v:
International Journal of PIXE. 24:59-65
The effects of the vascular disrupting agent AVE8062 on tumor and normal tissue samples were investigated by particle-induced X-ray emission (PIXE) analysis using quantum dots (QDs). We investigated fibrosarcoma tumors in mice, and used kidney tissue
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e9b1a2769148549b2508a9886ed9531
https://doi.org/10.1142/s0129083514500077
https://doi.org/10.1142/s0129083514500077
Autor:
Keizo Ishii, Fumito Fujishiro, Hiroaki Takahashi, Hirotsugu Arai, K. Nagakubo, Youhei Kikuchi, Shigeo Matsuyama, H. Sugai, T. Sakurada, Naoyuki Osada, A. Ishizaki, Hiromichi Yamazaki, Atsuki Terakawa, Seong Yun Kim
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 318:70-75
We present an updated assessment of soil contamination due to the nuclear accident at the Fukushima No. 1 nuclear power plant on 11 March 2011. A safe limit for the spatial dose rate (micro-Sv/h) of gamma rays from 134,137 Cs has been established in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f732bbdcef54e5bb562d6b977b75eb6
https://doi.org/10.1016/j.nimb.2013.06.067
https://doi.org/10.1016/j.nimb.2013.06.067
Autor:
M. Ishiya, Keizo Ishii, M. Fujiwara, T. Nagaya, S. Yamauchi, M. Karahashi, Shigeo Matsuyama, K. Watanabe, Y. Nozawa, Atsuki Terakawa, Youhei Kikuchi, M. Fujisawa
Publikováno v:
International Journal of PIXE. 23:69-75
The microbeam system at Tohoku University has various applications. Recently higher spatial resolution down to several hundred nm and higher beam current with the resolution of several μm were required. To meet these requirements, a triplet lens sys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49de982e8308817372de8f3beec788e6
https://doi.org/10.1142/s0129083513400081
https://doi.org/10.1142/s0129083513400081
Autor:
T. Tada, Youhei Kikuchi, Y. Miura, H. Sugai, Keizo Ishii, Atsuki Terakawa, N. Hamada, Hiromichi Yamazaki, M. Fujiwara, K. Fujiki, E. Sakurai, Y. Itoh, Shigeo Matsuyama, Y. Hatori, A. Fukaya, S. Hiraishi
Publikováno v:
International Journal of PIXE. 22:37-43
The detection efficiency of the submilli-PIXE camera was improved by installing a new X-ray detector with a smaller distance from specimens. The distortion of elemental images caused by position dependent detection efficiency was corrected by estimat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8134c30556bab173fc0669f0119cf56
https://doi.org/10.1142/s0129083512400050
https://doi.org/10.1142/s0129083512400050
Autor:
Youhei Kikuchi, T. Sakurada, Akira Hasegawa, Seong Yun Kim, Atsuki Terakawa, Shigeo Matsuyama, I. Satoh, H. Yuhki, M. Fujiwara, Hiromichi Yamazaki, Keizo Ishii, K. Nagakubo
Publikováno v:
International Journal of PIXE. 22:7-12
The space radiation dose rates at several points in Miyagi prefecture and their time dependencies were measured. Radiation exposure was mainly caused by 131 I at the earlier stage of Fukushima first nuclear power accidents and then by 134 Cs and 137
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::782a1e7eee3d583d06aa638bb8a3feca
https://doi.org/10.1142/s0129083512400311
https://doi.org/10.1142/s0129083512400311
Autor:
Keizo Ishii, K. Sera, S. Hiraishi, M. Fujiwara, Youhei Kikuchi, H. Sugai, T. Tada, Atsuki Terakawa, Y. Miura, Hiromichi Yamazaki, A. Fukaya, I. Hirai, Shigeo Matsuyama
Publikováno v:
International Journal of PIXE. 22:45-50
NABESHIMA-DANTSU is the name of the first Japanese-made carpets which have been produced in the Nabeshima domain (Saga Prefecture) since the later Edo period. The NABESHIMA-DANTSU carpets have been woven from one kind of cotton, and have been dyed wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a850ce660b05443308417966b097119
https://doi.org/10.1142/s0129083512400281
https://doi.org/10.1142/s0129083512400281
Autor:
Youhei Kikuchi, I. Satoh, Hiromichi Yamazaki, Keizo Ishii, Shigeo Matsuyama, Atsuki Terakawa, K. Nagakubo, T. Sakurada, Seong Yun Kim, H. Yuhki, M. Fujiwara, Akira Hasegawa
Publikováno v:
International Journal of PIXE. 22:1-5
The great East Japan earthquake consisted of three catastrophes. The first one was the earthquake, the second one was the tsunami and the third one was nuclear power plant accidents. The magnitude 9 was recorded. After the earth quake, huge tsunami w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f84bf604127e0c0b085ffa7f281aac70
https://doi.org/10.1142/s012908351240030x
https://doi.org/10.1142/s012908351240030x
Autor:
Atsuki Terakawa, H. Yuhki, Youhei Kikuchi, Seong Yun Kim, Akira Hasegawa, Shigeo Matsuyama, K. Nagakubo, M. Fujiwara, T. Sakurada, I. Satoh, Hiromichi Yamazaki, Keizo Ishii
Publikováno v:
International Journal of PIXE. 22:13-19
We studied the structure of radioactive cesium distribution in soil and found the exponential dependence. This behavior could be explained theoretically. We developed a useful method to decontaminate the soil contaminated with radioactive cesium atom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef9b54c8cb05725f6750f163cdd809a8
https://doi.org/10.1142/s0129083512400323
https://doi.org/10.1142/s0129083512400323