Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Takuma Endo"'
Publikováno v:
Journal of Thermal Science and Technology, Vol 18, Iss 1, Pp 23-00038-23-00038 (2023)
We experimentally investigated the influences of a small obstacle on the sidewall upon a detonation cellular structure using the smoked-foil technique for a stoichiometric hydrogen–oxygen mixture diluted with argon at pressures ranging from 15 to 6
Externí odkaz:
https://doaj.org/article/10b0fe3641824b19a7753cad2a8e0779
Publikováno v:
Journal of Thermal Science and Technology, Vol 16, Iss 2, Pp JTST0018-JTST0018 (2021)
We experimentally investigated the promotion of deflagration-to-detonation transition (DDT) in hydrogen-air mixtures contained in a tube in which straight-shaped rods were installed as obstacles. In the experiments, the number of obstacle rods, their
Externí odkaz:
https://doaj.org/article/5ef1f08380da439181d5ecd73f9fc8c0
Publikováno v:
Journal of Thermal Science and Technology, Vol 15, Iss 3, Pp JTST0030-JTST0030 (2020)
The characteristics of the propagation of a detonation from a cylindrical tube of constant cross section into a diverging cone were experimentally investigated using the smoked-foil technique for three explosive gas mixtures: C2H2+2.5O2, 2H2+O2+4.5Ar
Externí odkaz:
https://doaj.org/article/8869275fd4694f83a23aab5c5d7423c9
Autor:
Takuma ENDO, Keiji MASUDA, Wataru WATANABE, Takuya MUKAI, Hiroki NAGAI, Tomoyuki JOHZAKI, Ken MATSUOKA
Publikováno v:
Journal of Thermal Science and Technology, Vol 11, Iss 2, Pp JTST0022-JTST0022 (2016)
In this study, experiments on a pulse detonation turbine engine (PDTE) were conducted. The final goal of this work is the self-sustained operation of a PDTE system in which all of the air used for its operation is supplied by a turbine-compressor dri
Externí odkaz:
https://doaj.org/article/292e06e5bd434441bb54de0a57ed45ac
Autor:
Yutaka Nakashimada, Wookyung Kim, Akihiro Ueda, Takuma Endo, Yukihiko Matsumura, Takayuki Ichikawa, Keiya Nisida
Publikováno v:
Journal of the Energy Institute. 99:178-185
The effects of different mole fractions of hydrogen and carbon dioxide on the combustion characteristics of a premixed methane–air mixture are experimentally and numerically investigated. The laminar burning velocity of hydrogen-methane-carbon diox
Autor:
Daisuke Shimokuri, Takuma Endo, Fumihiko Saito, Shenqyang Shy, Tomoaki Yatsufusa, Akira Miyoshi, Yuta Shinji, Yi Rong Chen, Yasuyuki Sakai, Yu Chao Liao, Yoshihisa Nou, Shimpei Yamada
Publikováno v:
Combustion and Flame. 227:283-295
Ignition delay times (IDTs) and laminar flame speeds (SL) of C9H20 (nonane) isomers are systematically investigated. IDTs of normal nonane (n-C9), 2-methyloctane (2mC8), 2,4-dimethylheptane (24mC7), and 2,2,4,4-tetramethylpentane (2244mC5) are experi
Autor:
Fumika Nakamura, Zihao Song, Hiroki Ota, Nyamjargal Ochirkhuyag, Ryosuke Matsuda, Takuma Endo
Publikováno v:
Nanoscale. 13:2113-2135
Research on liquid metals has been steadily garnering more interest in recent times, especially in flexible electronics applications because of their properties like possessing high conductivity and being liquid state at room temperature. The unique
Deflagration-to-detonation transition in laser-ignited explosive gas contained in a smooth-wall tube
Autor:
Wookyung Kim, Takuma Endo, Tomoyuki Johzaki, Daisuke Shimokuri, Akira Miyoshi, Shinichi Namba, Shimon Kuwajima
Publikováno v:
Combustion and Flame. 219:275-282
The effect of laser ignition on the deflagration-to-detonation transition (DDT) was experimentally investigated. Explosive gas, which was 0.87[(1/4)C2H4+(3/4)O2]+0.13N2 contained in a smooth-wall tube at 100 kPa and approximately 20 °C, was ignited
Publikováno v:
International Journal of Hydrogen Energy. 45:25608-25614
The self-similar propagation of expanding spherical flames in lean hydrogen–air mixtures at elevated pressure was experimentally investigated using a dual-chamber apparatus with the quartz windows that enabled observing a flame radius of up to 110
Autor:
Fumika Nakamura, Ryosuke Matsuda, Go Inamori, Yutaka Isoda, Satoru Mizuguchi, Hiroki Ota, Takuma Endo
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Scientific Reports
Scientific Reports
Stretchable physical sensors are crucial for the development of advanced electrical systems, particularly wearable devices and soft robotics. Currently available stretchable sensors that detect both pressure and strain are based on piezoelectric, pie