Y
Yutaka Matsumi
Researcher at Nagoya University
Publications - 222
Citations - 5215
Yutaka Matsumi is an academic researcher from Nagoya University. The author has contributed to research in topics: Photodissociation & Laser-induced fluorescence. The author has an hindex of 37, co-authored 215 publications receiving 4730 citations. Previous affiliations of Yutaka Matsumi include Hokkaido University & University of Southern Denmark.
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Journal ArticleDOI
Comparison of laser-induced fluorescence and chemiluminescence measurements of NO2 at an urban site
Hiroyuki Suzuki,Yuka Miyao,Tomoki Nakayama,Julie K. Pearce,Yutaka Matsumi,Kenshi Takahashi,Kazuyuki Kita,Kenichi Tonokura +7 more
TL;DR: In situ measurements of nitrogen dioxide (NO2) concentrations were conducted at an urban site in Tokyo (35°71′N, 139°76′E), Japan during the summers of 2007-2009.
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Kinetics of the gas phase reactions of chlorine atoms with a series of ketones
TL;DR: In this article, relative rate techniques were used to study the reactivity of Cl atoms with a series of ketones in 700-Torr of N 2 or air diluent at 296-K.
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The effects of meteorological conditions and long-range transport on PM2.5 levels in Hanoi revealed from multi-site measurement using compact sensors and machine learning approach
Bich-Thuy Ly,Yutaka Matsumi,Tuan V. Vu,Kazuhiko Sekiguchi,Thu-Thuy Nguyen,Chau-Thuy Pham,Trung-Dung Nghiem,Ich-Hung Ngo,Yuta Kurotsuchi,Thu-Hien Nguyen,Tomoki Nakayama +10 more
TL;DR: In this article, the contribution of long-range transport and meteorological factors on PM2.5 levels were investigated with a machine learning technique based on a random forest (RF) algorithm and concentration weight trajectory (CWT).
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O(3Pj) atom formation from photodissociation of ozone in the visible and ultraviolet region
TL;DR: The photodissociation of ozone at 266, 308, and 532 nm has been studied for probing O(3Pj) atomic photofragments by a vacuum ultraviolet laser-induced fluorescence method.
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Approach to thermal equilibrium in atomic collisions.
Peng Zhang,Vasili Kharchenko,Alexander Dalgarno,Yutaka Matsumi,Tomoki Nakayama,Kenshi Takahashi +5 more
TL;DR: In this paper, the energy relaxation of fast atoms moving in a thermal bath gas is explored experimentally and theoretically, and two time scales characterize the equilibration, one a short time, in which the isotropic energy distribution profile relaxes to a Maxwellian shape at some intermediate effective temperature, and the second, a longer time, that the relaxation preserves the Maxwellian distribution and its effective temperature decreases continuously to the bath gas temperature.