Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Yumi Yasuoka"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract Various anomalies occurring before earthquakes are currently being studied to predict seismic events, with one of them being the radioactive element radon (222Rn). Radon concentrations in the soil, water, and atmosphere fluctuate in response
Externí odkaz:
https://doaj.org/article/224de21f4ac247d3aef5192ffbf96bd6
Autor:
Jun Muto, Yumi Yasuoka, Nao Miura, Daichi Iwata, Hiroyuki Nagahama, Mitsuhiro Hirano, Yoshiro Ohmomo, Takahiro Mukai
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Despite the challenges in identifying earthquake precursors in intraplate (inland) earthquakes, various hydrological and geochemical measurements have been conducted to establish a possible link to seismic activities. Anomalous increases in
Externí odkaz:
https://doaj.org/article/3e88394ff1d24c18adcd5c31d065f72b
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract The presence of anomalous geochemical changes related to earthquakes has been controversial despite widespread, long time challenges for earthquake prediction. Establishing a quantitative relationship among geochemical changes and geodetical
Externí odkaz:
https://doaj.org/article/cbc7c12eeb894746a54fde824fc77382
Autor:
Yumi YASUOKA, Hiroki FUJITA, Tomoya TSUJI, Takakiyo TSUJIGUCHI, Michiya SASAKI, Tomoyuki MIYAZAKI, Shun HASHIMA, Hiroshi YASUDA, Kazumasa SHIMADA, Seiko HIROTA
Publikováno v:
Japanese Journal of Health Physics. 57:146-155
Autor:
Maho Matsumoto, Yumi Yasuoka, Yui Takakaze, Masahiro Hosoda, Shinji Tokonami, Kazuki Iwaoka, Takahiro Mukai
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 332:167-172
This study was the first to determine the effectiveness of radon concentration measurement in water using the degassing method as a screening method based on the liquid scintillation counter method. The degassing method used two radon monitors (Alpha
Autor:
Ryohei Yamada, Masahiro Hosoda, Tomomi Tabe, Yuki Tamakuma, Takahito Suzuki, Kevin Kelleher, Takakiyo Tsujiguchi, Yoshiki Tateyama, Eka Djatnika Nugraha, Anna Okano, Yuki Narumi, Chutima Kranrod, Hirofumi Tazoe, Kazuki Iwaoka, Yumi Yasuoka, Naofumi Akata, Tetsuya Sanada, Shinji Tokonami
Publikováno v:
International Journal of Environmental Research and Public Health; Volume 19; Issue 3; Pages: 1758
International Journal of Environmental Research and Public Health, Vol 19, Iss 1758, p 1758 (2022)
International Journal of Environmental Research and Public Health, Vol 19, Iss 1758, p 1758 (2022)
222Rn and 226Ra concentrations of less than a few to several thousands of Bq L−1 have been observed in several underground bodies of water around the world. Although regulations for these concentrations in water have been implemented internationall
Autor:
Akiko Wakabayashi, Yuria Arai, Nobutoshi Fukuhori, Miroslaw Janik, Satomi Fujii, Takahiro Mukai, Yumi Yasuoka, Yasunori Mori, Hiroyuki Nagahama
Publikováno v:
RADIOISOTOPES. 68:317-329
Autor:
Masahiro Hosoda, Maki Ishihara, Yumi Yasuoka, Jun Muto, Yuuki Kamishiro, Shinji Tokonami, Kazuki Iwaoka, Miroslaw Janik, Yasunori Mori, Rikiya Takahashi, Takahiro Mukai, Shoko Higuchi, Hiroyuki Nagahama
Publikováno v:
Radiation Protection Dosimetry
The World Health Organisation (WHO) recommends that the concentration of radon in water should be no more than 100 kBq m−3 (100 BqL−1) and the Codex Alimentarius Commission states that the limit of quantification (LOQ) of a method should be no mo
Autor:
Daichi Iwata, Yumi Yasuoka, Takahiro Mukai, Nao Miura, Jun Muto, Yoshiro Ohmomo, Mitsuhiro Hirano, Hiroyuki Nagahama
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Despite the challenges in identifying earthquake precursors in intraplate (inland) earthquakes, various hydrological and geochemical measurements have been conducted to establish a possible link to seismic activities. Anomalous increases in radon (22
Autor:
Shunya Nakasone, Yumi Yasuoka, Sohei Ooka, Masahiro Tanaka, Akinobu Ishimine, Masahide Furukawa, Naofumi Akata, Shuhei Shiroma, Natsumi Masuda, Yoshitaka Shiroma, Masahiro Hosoda, Kaori Nakamura, Akemi Kato
Publikováno v:
International Journal of Environmental Research and Public Health
Volume 18
Issue 3
International Journal of Environmental Research and Public Health, Vol 18, Iss 998, p 998 (2021)
Volume 18
Issue 3
International Journal of Environmental Research and Public Health, Vol 18, Iss 998, p 998 (2021)
In this study, to get a better understanding in characterizing groundwater and ensure its effective management, the radon concentrations in water samples were measured through Ryukyu limestone in southern Okinawa Island, Japan. Water samples were col