Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Asumi Ochiai"'
Autor:
Junpei Imoto, Asumi Ochiai, Genki Furuki, Mizuki Suetake, Ryohei Ikehara, Kenji Horie, Mami Takehara, Shinya Yamasaki, Kenji Nanba, Toshihiko Ohnuki, Gareth T. W. Law, Bernd Grambow, Rodney C. Ewing, Satoshi Utsunomiya
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
Abstract Highly radioactive cesium-rich microparticles (CsMPs) released from the Fukushima Daiichi Nuclear Power Plant (FDNPP) provide nano-scale chemical fingerprints of the 2011 tragedy. U, Cs, Ba, Rb, K, and Ca isotopic ratios were determined on t
Externí odkaz:
https://doaj.org/article/d1bcf202ae40471db6a0c5ad398e7b4c
Autor:
Ayaka Takeda, Takumi Oki, Hiroki Yokoo, Keisuke Kawamoto, Yuriko Nakano, Asumi Ochiai, Ilma Dwi Winarni, Mitsuki Kitahara, Kenta Miyoshi, Kenjin Fukuyama, Yoshiyuki Ohara, Keiko Yamaji, Toshihiko Ohnuki, Michael F. Hochella, Satoshi Utsunomiya
Publikováno v:
Chemosphere.
Biogenic manganese (Mn) oxides occur ubiquitously in the environment including the uranium (U) mill tailings at the Ningyo-toge U mine in Okayama, Japan, being important in the sequestration of radioactive radium. To understand the nanoscale processe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::138de448bd848603463a76ed96577ec1
https://pubmed.ncbi.nlm.nih.gov/36513194
https://pubmed.ncbi.nlm.nih.gov/36513194
Autor:
Asumi Ochiai, Yoshiyuki Ohara, Satoshi Utsunomiya, Kenjin Fukuyama, Motoki Uehara, Ayaka Takeda, Toshihiko Ohnuki, Hiroki Yokoo, Keisuke Kawamoto, Michael F. Hochella, M. Takehara, Takumi Oki, Yuriko Nakano
Publikováno v:
Geochimica et Cosmochimica Acta. 298:207-226
Ferrihydrite, a hydrous ferric oxide, is ubiquitous in silica-rich mine drainage sites, although some uncertaity remains concerning its nanoscale texture and colloidal properties such as its association with amorphous silica and reactions with contam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56b8462ae95726232910ab4783393077
https://doi.org/10.1016/j.gca.2021.02.004
https://doi.org/10.1016/j.gca.2021.02.004
Publikováno v:
Chemistry Letters. 48:1480-1483
Calcium molybdate nanoparticles were synthesized using a liposome based on egg phosphatidylcholine and cholesterol. The molybdate ion was encapsulated into the liposome, and then a calcium chloride...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::369cf8b3ff7fa29ee7a2036db2d92016
https://doi.org/10.1246/cl.190651
https://doi.org/10.1246/cl.190651
Autor:
Satoshi Utsunomiya, Miya Hashimoto, Shinya Yamasaki, Saori Kurita, Asumi Ochiai, Keisuke Sueki
Publikováno v:
Journal of Colloid and Interface Science. 530:473-480
In order to achieve the highly efficient 99mTc production from 100MoO3 by the 100Mo(n, 2n)99Mo reaction, we have developed a new protocol to synthesize nano-sized Mo particles, of which the size was controlled by the inner space of the liposomes. Cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a82235a4011a80c9a9772c4f7273fe5
https://doi.org/10.1016/j.jcis.2018.07.007
https://doi.org/10.1016/j.jcis.2018.07.007
Autor:
Asumi Ochiai, Nobutake Horiuchi, Toshihiko Ohnuki, Satoshi Utsunomiya, Yusuke Inaba, Xinpeng Wang, Kenji Takeshita, Xiangbiao Yin, Hideharu Takahashi
Publikováno v:
Chemical Engineering Journal. 333:392-401
In light of the widespread Cs pollution that may follow nuclear disasters, the decontamination of post-accident soil has earned much attention due to the difficulty of Cs removal for its super-retention in micaceous minerals. Herein, we successfully
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52f2dded643d694d3473422f9aa08129
https://doi.org/10.1016/j.cej.2017.09.199
https://doi.org/10.1016/j.cej.2017.09.199
Autor:
Asumi Ochiai1 a.ochia@chem.kyushu-univ.jp, Satoshi Utsunomiya1 utsunomiya.satoshi.998@m.kyushu-u.ac.jp
Publikováno v:
Minerals (2075-163X). May2017, Vol. 7 Issue 5, p84. 21p.
Autor:
Bernd Grambow, Kenji Nanba, Toshihiko Ohnuki, Kenji Horie, Junpei Imoto, Mami Takehara, Genki Furuki, Asumi Ochiai, Satoshi Utsunomiya, Shinya Yamasaki, Ryohei Ikehara, Rodney C. Ewing, Gareth T. W. Law, Mizuki Suetake
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
Scientific Reports
Imoto, J, Ochiai, A, Furuki, G, Suetake, M, Ikehara, R, Horie, K, Takehara, M, Yamasaki, S, Nanba, K, Ohnuki, T, Law, G T W, Grambow, B, Ewing, R C & Utsunomiya, S 2017, ' Isotopic signature and nano-texture of cesium-rich micro-particles : Release of uranium and fission products from the Fukushima Daiichi Nuclear Power Plant ', Scientific Reports, vol. 7, no. 1, 5409 . https://doi.org/10.1038/s41598-017-05910-z
Scientific Reports
Imoto, J, Ochiai, A, Furuki, G, Suetake, M, Ikehara, R, Horie, K, Takehara, M, Yamasaki, S, Nanba, K, Ohnuki, T, Law, G T W, Grambow, B, Ewing, R C & Utsunomiya, S 2017, ' Isotopic signature and nano-texture of cesium-rich micro-particles : Release of uranium and fission products from the Fukushima Daiichi Nuclear Power Plant ', Scientific Reports, vol. 7, no. 1, 5409 . https://doi.org/10.1038/s41598-017-05910-z
Highly radioactive cesium-rich microparticles (CsMPs) released from the Fukushima Daiichi Nuclear Power Plant (FDNPP) provide nano-scale chemical fingerprints of the 2011 tragedy. U, Cs, Ba, Rb, K, and Ca isotopic ratios were determined on three CsMP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f3116d6456d5aa51e16d18f68dd318c
https://doaj.org/article/d1bcf202ae40471db6a0c5ad398e7b4c
https://doaj.org/article/d1bcf202ae40471db6a0c5ad398e7b4c
Publikováno v:
Applied Geochemistry. 123:104768
It is known that cesium ion, Cs+, is strongly sorbed to micaceous minerals. However, the desorption of Cs+ at a trace sorption level with time in the presence of different salt ions is not well understood. In this study, we conducted long-term sorpti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4ec2fe892f4ec441c1e5d3426ad84af
https://doi.org/10.1016/j.apgeochem.2020.104768
https://doi.org/10.1016/j.apgeochem.2020.104768
Autor:
Satoshi Utsunomiya, Asumi Ochiai, Kenji Takeshita, Hideharu Takahashi, Lijuan Zhang, Xiangbiao Yin, Toshihiko Ohnuki
Publikováno v:
Chemistry Letters. 46:1350-1352
Sorbed Cs on vermiculitized biotite in saturation amount was desorbed by extractions with 1M K+ and Mg2+ at varied temperatures. At room temperature, Cs+ was readily desorbed by leaching with K+ (~100%) but not by Mg2+ (~50%). However, contrary was t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5d5b7681ae2f8561061cdbc821eab8b
https://doi.org/10.1246/cl.170551
https://doi.org/10.1246/cl.170551