Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Kazuhiro Koizumi"'
Autor:
Leiming Zhang, Chao Peng, Yuan Liu, Bin Luo, Huanbo Wang, Guangming Shi, Fumo Yang, Yang Chen, Kazuhiro Koizumi, Naoki Takeda, Mi Tian, Bo Li, Changtan Jiang
Publikováno v:
Environmental Pollution. 250:898-905
Secondary inorganic aerosols, including sulfate, nitrate, and ammonium contribute to a large extent to the severe haze pollution events in China. Understanding their formation mechanisms is critical for designing effective mitigation strategies to co
Autor:
Takayuki Nakamura, Naoki Takeda, Nobuhiro Moteki, Nobuyuki Takegawa, Yugo Kanaya, Noritomo Hirayama, Kazuhiro Koizumi, Fumikazu Taketani, Xiaole Pan, Takuma Miyakawa
Publikováno v:
Journal of Aerosol Science. 87:102-110
We have developed a novel system for real-time measurement of the mixing state of aerosol particles using a tandem combination of laser-induced fluorescence (LIF) and incandescence (LII) techniques. The tandem analysis system comprises two chambers c
Autor:
Kazuhiro Koizumi, Nobuyuki Takegawa, Y. Ozawa, M. Tabaru, Noritomo Hirayama, N. Takeda, Takuma Miyakawa
Publikováno v:
Aerosol Science and Technology. 48:853-863
We developed a laser induced incandescence–mass spectrometric analyzer (LII-MS) for online measurements quantifying the aerosol chemical compositions with respect to the mixing state of black carbon (BC). The LII-MS is developed as a tandem series
Autor:
Fumikazu Taketani, Kazuhiro Koizumi, Nobuhiro Moteki, Nobuyuki Takegawa, Takayuki Nakamura, Yugo Kanaya
Publikováno v:
Journal of Aerosol Science. 58:1-8
This paper describes the development of an instrument for online detection of certain types of organic aerosol particles in the atmosphere using the laser-induced fluorescence (LIF) technique. Aerosol particles, sampled from the atmosphere to an opti
Publikováno v:
Marine Engineering. 48:534-539
Publikováno v:
Aerosol Science and Technology. 45:1184-1198
The generalized Kirchhoff's law predicts that the polarization state of thermal emission from an individual small particle depends on the particle shape. We show for the first time experimental evi...
Publikováno v:
Journal of the Japan Society for Precision Engineering, Contributed Papers. 71:885-889
Autor:
Kazuhiro Koizumi, Yuji Matsuzoe
Publikováno v:
Journal of the Japan Society for Precision Engineering, Contributed Papers. 70:946-950
Autor:
Kazuhiro Koizumi, Yuji Matsuzoe
Publikováno v:
Journal of the Japan Society for Precision Engineering, Contributed Papers. 70:1439-1443
Recent requirements for semiconductor equipment and robots that can proceed in their tasks without returning to a starting point have increased the demand for absolute encoders, including higher resolution and longer scale. This paper deals with the
Autor:
Kazuhiro Koizumi, Yuji Matsuzoe
Publikováno v:
Journal of the Japan Society for Precision Engineering, Contributed Papers. 70:1186-1190
We propose a method to improve the resolution of a linear encoder by optimizing the design of the photo detector cell pitch. High-performance optical encoders generally achieve high resolution by electrically dividing the sinewave-shaped output signa