Network
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Publication
Featured researches published by Hajime Iida.
Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering | 2011
Koichi Watanabe; Hideharu Honoki; Fuminori Endo; Takashi Murakami; Yuki Yoshida; Hajime Iida; Yoshitoshi Uehara; Atsushi Kume
Measurements of ultrafine particles (UFPs) with diameters smaller than 100 nm were made with a Scanning Mobility Particle Sizer on the roadside of the Tateyama-Kurobe Alpine route on the western slope of Mt. Tateyama, Japan, in the summer and autumn of 2007 and 2008. The number concentrations of nanoparticles (NPs) with diameters smaller than 50 nm increased sharply in the morning. This increase agreed with that of the NO concentration, which is a good indicator of vehicle emissions. Although the peak concentration of NO was also detected in the late afternoon, the concentrations of NPs did not increase. The vehicle emission of UFPs may vary considerably with the driving conditions. The emission of NPs might have been accelerated under a high engine-load condition. The NP concentrations in October were much higher than those in August, although there were more buses in August than in October. The number size distribution in the morning was bimodal, with the first peak around 20–30 nm and the second one around 70–80 nm. The first peak became small during the daytime. The first peak disappeared, and a small second peak remained through midnight.
Bulletin of glaciological research | 2007
Hideharu Honoki; Koichi Watanabe; Hajime Iida; Kunio Kawada; Kazuichi Hayakawa
Bulletin of glaciological research | 2006
Hideo Sakai; Yasuhiro Ura; Takayuki Nakano; Hajime Iida; Katsunori Muroi
Bulletin of glaciological research | 2017
Masato Furuya; Kotaro Fukui; Hajime Iida; Shoichiro Kojima; Takeshi Matsuoka
The American Journal of Gastroenterology | 2015
Kotaro Fukui; Shigeru Kikukawa; Hajime Iida; Yusuke Goto
The American Journal of Gastroenterology | 2014
Kotaro Fukui; Shigeru Kikukawa; Hajime Iida; Yusuke Goto
The American Journal of Gastroenterology | 2014
Kotaro Fukui; Hajime Iida
Japan Geoscience Union | 2014
Kotaro Fukui; Hajime Iida
Japan Geoscience Union | 2014
Hajime Iida; Kotaro Fukui
The American Journal of Gastroenterology | 2013
Hajime Iida; Kotaro Fukui
Collaboration
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National Institute of Information and Communications Technology
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