Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ichiro Higashikubo"'
Autor:
Maromu Yamada, Mariko Ono-Ogasawara, Ichiro Higashikubo, Kenichi Kobayashi, Mitsutoshi Takaya, Masayoshi Hagiwara
Publikováno v:
Industrial health. 60(3)
In this study, airborne particles were collected using filters, and the particle number concentrations were measured in two nanotitanium dioxide (nanoTiO2)-manufacturing plants. Real-time particle size measurements were performed using both optical a
Autor:
Yuto Umehara, Tsutoshi Imanaka, Masami Furuuchi, Mitsuhiko Hata, Ichiro Higashikubo, Ai Nakamura, Masashi Takao, Yoshihiro Suzuki, Masahiko Yamazaki, Muhhamad Amin, Pisith Sok
Publikováno v:
Sangyo eiseigaku zasshi = Journal of occupational health. 64(4)
OBJECTIVES Gas sampling tubes are essential tools for the evaluation of air quality in work environments. It adsorbs toxic gaseous matters onto the surface of various granular adsorbents, such as silica gel or activated carbon packed in a thin glass
Autor:
Hidesuke Shimizu, Yoko Eitaki, Kenji Ando, Akihiro Araki, Ichiro Higashikubo, Haruhiko Sakurai, Heihachiro Arito
Publikováno v:
Industrial Health
This study aimed to evaluate personal exposures of 27 workers to indium compounds as “total” dust and its “respirable” fraction in their breathing zones at 3 Japanese indium plants. Eight-hour time-weighted average (TWA) indium concentrations
Autor:
Mitsutoshi TAKAYA, Maromu YAMADA, Kenichi KOBAYASHI, Ichiro HIGASHIKUBO, Masayoshi HAGIWARA, Mariko ONO-OGASAWARA
Publikováno v:
Industrial Health; 2022, Vol. 60 Issue 3, p253-265, 13p
Autor:
Haruhiko Sakurai, Ichiro Higashikubo, Heihachiro Arito, Kenji Ando, Akihiro Araki, Hidesuke Shimizu
Publikováno v:
Journal of Occupational Health
Objectives This study aimed to assess workers' exposure to indium and its compounds in 55 indium-handling operations among 13 Japanese plants. The surveyed plants were selected from indium-manufacturing plants whose annual indium production exceeded
Autor:
Masami Furuuchi, Mitsuhiko Hata, Rizki Andre Handika, Hidesuke Shimizu, Amin Muhammad, Suthida Piriyakarnsakul, Toshihiro Kawamoto, Thunyapat Thongyen, Ichiro Higashikubo
Publikováno v:
Aerosol and Air Quality Research. 21:200606
For the appropriate hygienic management of workplaces where workers handled nano-TiO2 products, the status of the personal exposure of workers to respirable dust (PM4) and nanoparticles (PM0.1) was investigated. Using a cyclone sampler for PM4 and a
Autor:
Hidesuke Shimizu, Yoko Eitaki, Haruhiko Sakurai, Akihiro Araki, Kenji Ando, Heihachiro Arito, Ichiro Higashikubo
Publikováno v:
Industrial Health
This study quantitatively assessed personal exposure of 86 workers to indium compounds as total dust at 11 Japanese indium plants. The personal exposures to indium concentrations in the breathing zone during an 8 h work-shift were determined by ICP-M
Autor:
Ichiro HIGASHIKUBO, Heihachiro ARITO, Yoko EITAKI, Kenji ANDO, Akihiro ARAKI, Hidesuke SHIMIZU, Haruhiko SAKURAI
Publikováno v:
Industrial Health; 2019, Vol. 57 Issue 3, p392-397, 6p
Autor:
Ichiro HIGASHIKUBO, Heihachiro ARITO, Yoko EITAKI, Akihiro ARAKI, Kenji ANDO, Hidesuke SHIMIZU, Haruhiko SAKURAI
Publikováno v:
Industrial Health; 2018, Vol. 56 Issue 6, p553-560, 8p
Publikováno v:
The Journal of Organic Chemistry. 69:1331-1336
Rhodium(II)-catalyzed intramolecular reaction of diazoketones 1 bearing a cyclic ethereal moiety transiently formed bicyclo[m.3.0]octan-3-one-1-oxonium-2-ylides (2), which underwent sigmatropic and stereospecific [3 + 2] cycloreversion reaction to fo