An experimental study on promotion of burning velocity of powder-gas hybrid combustion in a stagnation-point flow by Haruya YATA, Ryoki OKADA, Daiki MATSUGI, Takuya YAMAZAKI, Yuji NAKAMURA

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Effects of local flame displacement velocity on turbulent burning velocity for lean H2-C3H8-Air mixtures by Masaya NAKAHARA, Yoshinori MATSUO, Yoshio OMOTO, Tsubasa SAEKI, Fumiaki ABE

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Study of combustion timing control in hydrogen mixed gas engine by Atsushi SHIMADA, Yoshihiro SUKEGAWA, Kengo KUMANO, Kaito YASUI, Kotaro TANAKA

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Unstable behaviors of cellular premixed flames caused by hydrodynamic and diffusive-thermal instabilities under high- and low-temperature environment by Satoshi KADOWAKI, Taisuke WASHIO, Thwe Thwe Aung, Wataru YAMAZAKI, Toshiyuki KATSUMI, Hideaki KOBAYASHI

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Analysis on control factors of air-fuel ratio limit by using in-cylinder optical measurement by Kazuhiro ORYOJI, Yoshihiko AKAGI, Yoshifumi UCHISE, Yuyu ZHOU, Tatsuya KUBOYAMA, Yasuo MORIYOSHI

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Unstable behavior of hydrogen-air lean premixed flames (Effects of unburned-gas temperature, heat loss and scale) by Satoshi KADOWAKI, Tsutomu UCHIYAMA, Toshiyuki KATSUMI, Thwe Thwe Aung, Hideaki KOBAYASHI

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The effects of steam addition on the unstable behavior of hydrogen-air lean premixed flames under the adiabatic and non-adiabatic conditions by Taisei FURUYAMA, Thwe Thwe Aung, Toshiyuki KATSUMI, Hideaki KOBAYASHI, Satoshi KADOWAKI

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Telemetry-load-monitoring and in-process velocity-controlling between tool and workpiece in grinding with new developed smart super abrasive wheel by Kiyoshi YANAGIHARA

“…Thus, it is required to maintain performance of grinding wheel for preventing grinding failures such as grinding burn, loading, chatter marks, and so on. Although regular dress-interval for grinding wheel is adopted in practice, if degradation of grinding performance can be detected in process, not only the best dress interval can be determined, but also no-failure grinding can be realized. …”
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Development of origami forming to improve the flexibility of truss core panel design by Hoan Thai Tat NGUYEN, Kousuke TERADA, Sunao TOKURA, Ichiro HAGIWARA

“…Although honeycomb panel is widely used in various structure, its adhesive to glue honeycomb core and plate may burn by fire, leading to the requirement of another lightweight and high stiffness panel. …”
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Application of system modeling for production system of portable products considering variation in leakage current characteristics of semiconductors by Yoshio MURAOKA, Kenichi SEKI, Hidekazu NISHIMURA

“…The simulation result is being referred to temperatures that cause low-temperature burn injury. As a case study, a system model of portable product is developed and demonstrates thermal simulation to determine limitation in large variation in leakage current characteristics to satisfy product thermal quality. …”
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An appearance of asymmetrically spreading flames in narrow combustible channel by Tsuneyoshi MATSUOKA, Satoshi MURAKAMI, Takuya YAMAZAKI, Yuji NAKAMURA

“…In this way, it is suggested that the flowing oxygen is effectively used to burn two fuel slabs. It is obvious that the asymmetrical configuration gives temporary stable condition. …”
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Fuel reforming engine system using low concentration hydrous ethanol with improved thermal efficiency and low NOx emissions by Yuzo SHIRAKAWA, Atsushi SHIMADA, Takao ISHIKAWA

“…This system has three features: (1) exhaust heat recovery by fuel reforming, (2) hydrogen mixed combustion for lean burn, (3) high compression and low temperature combustion using hydrous ethanol with high octane number. …”
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Characteristics of ammonia/N2/O2 laminar flame in oxygen-enriched air condition by Hiroyuki TAKEISHI, Jun HAYASHI, Shota KONO, Wataru ARITA, Kimio IINO, Fumiteru AKAMATSU

“…This laminar burning velocity is very low compared with that of other fossil fuels. …”
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Fluid-mechanical structure of methane-air and propane-air turbulent premixed flames by Yasuko YOSHIDA, Junichi FURUKAWA, Forman A. WILLIAMS

“…When the deficient reactant has a higher diffusion coefficient it will diffuse preferentially to turbulence-generated wrinkles, thereby increasing the local burning velocity there, with a resulting positive increment in the turbulent burning velocity, while if the deficient reactant has a lower diffusion coefficient, its diffusion to a wrinkle is preferentially retarded, thereby decreasing the local burning velocity and contribution a negative increment to the turbulent burning velocity. …”
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Intrinsic instability of premixed flames in cryogenic environment (Effects of unburned-gas temperature and heat loss) by Thwe Thwe Aung, Satoshi KADOWAKI

“…As the unburned-gas temperature became lower, the normalized burning velocity of a cellular flame increased. When radiative heat loss was considered, the normalized burning velocity of a cellular flame increased at small Lewis numbers and remained at Lewis number of unity.…”
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Three-dimensional cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities (Effects of unburned-gas temperature and heat loss) by Satoshi KADOWAKI, Masato NOGAMI, Thwe Thwe Aung, Toshiyuki KATSUMI, Wataru YAMAZAKI, Hideaki KOBAYASHI

“…As the unburned-gas temperature became lower and the heat loss became larger, the growth rate decreased and the unstable range narrowed, owing to the decrease of the burning velocity of a planar flame. Using the preheat zone thickness and burning velocity of a planar flame, the dispersion relation was normalized. …”
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Flow divergence in the turbulent premixed flames by Yasuko YOSHIDA, Junichi FURUKAWA, Forman A. WILLIAMS

“…The cellular instability due to the preferential diffusion causes the turbulent burning velocity and/or the heat release to increase in the rich propane flame.…”
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Study on promotion of lean combustion by oxygen enrichment using a rapid compression expansion machine by Kazuki HARADA, Shion ANDO, Yuya ITO, Yuzo KAWASOE, Hideki HASHIMOTO, Osamu MORIUE

“…As a result, laminar burning velocity increased with oxygen concentration, which caused reduction of combustion period and enhancement of the indicated thermal efficiency. …”
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Study on a two-stage combustion method of woody biomass by Fumiaki ABE, Masaya NAKAHARA, Kenichi TOKUNAGA

“…In addition, we confirmed that combustion temperature and burning rate could be controlled by simply changing the amount of air. …”
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Ignition and combustion characteristics of polyethylene film in high temperature field (1st report : Effects of film size on ignition delay time and combustion time) by Mitsumasa IKEDA

“…As the surrounding temperature increases, the burning time became longer. This has influence on the amount of polyethylene remained at the ignition without pyrolysis during the ignition delay time. …”
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