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5 results on '"Konno, Mitsuru"'

1. Sylvite and halite on particles recovered from 25143 Itokawa: A preliminary report

Author

Zolensky, M. E., Noguchi, Takaaki, Kimura, Makoto, Hashimoto, Takahito, Konno, Mitsuru, Nakamura, Tomoki, Tsuchiyama, Akira, Matsumoto, Tooru, Matsuno, Junya, Okazaki, Ryuji, Uesugi, Masayuki, Karouji, Yuzuru, Yada, Toru, Ishibashi, Yukihiro, Shirai, Kei, Abe, Masanao, and Okada, Tatsuaki

Subjects
Sylvite, Sample processing, Mineralogy, engineering.material, Astrobiology, Geophysics, Space and Planetary Science, Preliminary report, Chondrite, Asteroid, engineering, Halite, Particle, Geology
Abstract

著者人数: 17名, Accepted: 2014-05-18, 資料番号: SA1140110000

Published
2014

2. Development of a specimen heating holder with an evaporator and gas injector and its application for catalyst

Author

Konno Mitsuru, Yaguchi Toshie, Watabe Akira, Nagakubo Yasuhira, and Kamino Takeo

Subjects
Coalescence (physics), Materials science, Diffusion, Oxide, Analytical chemistry, chemistry.chemical_element, Injector, law.invention, Catalysis, chemistry.chemical_compound, chemistry, law, Aluminium, Deposition (phase transition), Composite material, Instrumentation, Evaporator
Abstract

A specimen heating holder equipped with a gas injector and an evaporator has been developed for use with conventional transmission electron microscopes (TEMs). The developed specimen holder allows both synthesis of metal oxide support and deposition of catalyst nano-particles in situ. Since the holder is designed to be used in small gapped high-resolution objective lens pole-piece, all the procedure from the synthesis of support material to the deposition of catalyst as well as the behavior of the catalyst nano-particles on the support can be observed at near atomic resolution. The developed specimen holder was applied to the study of AuPd catalyst. First, air was injected onto heated aluminum particles via a gas injector to synthesize Al 2 O 3 support. Then, nano-particles of AuPd were deposited on the Al 2 O 3 support. After the deposition, the synthesized Al 2 O 3 support was heated and air was injected again to observe behaviors of the deposited AuPd nano-particles at elevated temperatures in the aerial environment. Behaviors of the AuPd nano-particles such as coalescence, segmentation and diffusion to the Al 2 O 3 support were dynamically observed at atomic level high resolution.

Published
2006

3. How to Put the HCCI Engine to Practical Use: Control the Ignition Timing by Compression Ratio and Increase the Power Output by Supercharge

Author

Zhili Chen and Konno Mitsuru

Subjects
Engineering, business.industry, Homogeneous charge compression ignition, Combustion, Supercharger, Automotive engineering, law.invention, Ignition system, Integrated engine pressure ratio, Carbureted compression ignition model engine, law, Compression ratio, Ignition timing, business
Abstract

In this study, compression ratio for controlling ignition and combustion for HCCI engine is proposed. Compression ratio can be changed higher for leaner mixture or lower for richer mixture to prevent misfire and rapid combustion respectively. In order to increase the power rate of the HCCI engine to a practical use level, supercharge can be combined with various compression ratio. To ascertain the efficacy on ignition and combustion, a series of bench tests and combustion simulations with constant pressure were conducted. The testing result shows that compression ratio is very useful for HCCI control: the engine can run over a wider load range of equivalent ratio without misfire or rapid combustion, and the power rate is comparable to a Dl (Direct Injection) engine when a supercharger is installed. The findings from the combustion simulation are: progress (or degeneration) of low temperature oxidation is highly dependent on pressure but pressure does not affect the reaction rate of high temperature oxidation.

Published
2003

4. Mineralogy of four Itokawa particles collected from the first touchdown site

Author

Bridges, John C., Hicks, Leon J., Gurman, Steven J., Bradley, John P., Noguchi, Takaaki, Kimura, Makoto, Hashimoto, Takahito, Konno, Mitsuru, Okazaki, Ryuji, Uesugi, Masayuki, Yada, Toru, Karouji, Yuzuru, Abe, Masanao, Okada, Tatsuaki, Mitsunari, Takuya, Nakamura, Tomoki, and Kagi, Hiroyuki

Subjects
X-ray absorption spectroscopy, Itokawa, Scanning electron microscope, Mineralogy, Geology, Electron microprobe, Space weathering, XANES, law.invention, Optical microscope, Space and Planetary Science, law, Chondrite, Transmission electron microscopy, Solar flare tracks, TEM, EPMA, Spectroscopy
Abstract

著者人数: 17名, Accepted: 2014-09-04, 資料番号: SA1140177000

Published
2014

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