Zobrazeno 1 - 10
of 379
pro vyhledávání: '"Yasuyuki Takata"'
Autor:
Yutaku Kita, Kensuke Kida, Takaaki Ariyoshi, Sumitomo Hidaka, Masamichi Kohno, Yasuyuki Takata
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033287 (2024)
The Leidenfrost temperature (T_{L}), at which the liquid drop lifetime peaks on a superheated surface, is believed to be wettability dependent. Here, we show that the wettability effect on T_{L} is subject to the history of the surface temperature. O
Externí odkaz:
https://doaj.org/article/ea2c60e8622b43658641291bbd2c7ccf
Autor:
Haidong Wang, Daniel Orejon, Dongxing Song, Xing Zhang, Glen McHale, Hiroshi Takamatsu, Yasuyuki Takata, Khellil Sefiane
Publikováno v:
Communications Materials, Vol 3, Iss 1, Pp 1-9 (2022)
Superhydrophobic behavior of liquid droplets on a surface typically results from chemical and surface topography considerations. Here, contact angles approaching 180° are observed for condensation-induced droplets on suspended monolayer graphene.
Externí odkaz:
https://doaj.org/article/aa92e309051343b78f80d3e801f0661a
Autor:
Junho Oh, Daniel Orejon, Wooyoung Park, Hyeongyun Cha, Soumyadip Sett, Yukihiro Yokoyama, Vincent Thoreton, Yasuyuki Takata, Nenad Miljkovic
Publikováno v:
iScience, Vol 25, Iss 1, Pp 103691- (2022)
Summary: The surface free energy of rare earth oxides (REOs) has been debated during the last decade, with some reporting REOs to be intrinsically hydrophilic and others reporting hydrophobic. Here, we investigate the wettability and surface chemistr
Externí odkaz:
https://doaj.org/article/fbf4e12f5e9b4934ad6a0838903624ad
Autor:
Biao Shen, Masayuki Yamada, Sumitomo Hidaka, Jiewei Liu, Junichiro Shiomi, Gustav Amberg, Minh Do-Quang, Masamichi Kohno, Koji Takahashi, Yasuyuki Takata
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-15 (2017)
Abstract For phase-change cooling schemes for electronics, quick activation of nucleate boiling helps safeguard the electronics components from thermal shocks associated with undesired surface superheating at boiling incipience, which is of great imp
Externí odkaz:
https://doaj.org/article/96bf137488714acf98e1de4314c6c2ed
Publikováno v:
Mechanical Engineering Journal, Vol 6, Iss 3, Pp 18-00388-18-00388 (2019)
This paper introduces a new hydrogen refueling system with a micro-scale hydrogen turbo-expander that enables us to replace a conventional low temperature refrigerator. From the process simulation of hydrogen refueling to the tank of a typical Fuel C
Externí odkaz:
https://doaj.org/article/7e9c7890cb2d473a8d5358e8c59f746a
Publikováno v:
Micromachines, Vol 11, Iss 2, p 193 (2020)
In all kinds of liquid desiccant dehumidification systems, the temperature increase of the desiccant solution due to the effect of absorptive heating is one of the main reasons of performance deterioration. In this study, we look into the thermal eff
Externí odkaz:
https://doaj.org/article/c01c079d009a47c98d2249a271fd0c15
Autor:
Hongbin HE, Biao SHEN, Liangyu CHEN, Sumitomo HIDAKA, Koji TAKAHASHI, Masamichi KOHNO, Yasuyuki TAKATA
Publikováno v:
Journal of Thermal Science and Technology, Vol 13, Iss 1, Pp JTST0011-JTST0011 (2018)
Heat transfer characteristic of a closed two-phase thermosyphon with enhanced boiling surface is studied and compared with that of a copper mirror surface. Two-phase cooling is widely used in application of thermal engineering and considerably more e
Externí odkaz:
https://doaj.org/article/1b346496a8504efd9da438c673c6e52d
Publikováno v:
Journal of Thermal Science and Technology, Vol 8, Iss 3, Pp 603-612 (2013)
In binary systems of hydrogen and hydrocarbons, the fluid-phase thermodynamic behavior is unique in having the divergence of the critical curves to a high pressure region. The thermodynamic properties of the binary systems including hydrogen with met
Externí odkaz:
https://doaj.org/article/226bbc441b01474d9ea0756f153c513e
Autor:
Bambang Joko SUROTO, Masahiro TASHIRO, Sana HIRABAYASHI, Sumitomo HIDAKA, Masamichi KOHNO, Yasuyuki TAKATA
Publikováno v:
Journal of Thermal Science and Technology, Vol 8, Iss 1, Pp 294-308 (2013)
The effect of subcooling and length of hydrophobic-spot periphery on nucleate pool boiling heat transfer from TiO2-coated surface with and without PTFE (polyetatafluoroethylene) hydrophobic circle spots at intermediate heat flux has been examined. Th
Externí odkaz:
https://doaj.org/article/97c0b67a1528435cb82fa0797c0361df
Autor:
Alexandros Askounis, Yutaka Yamada, Tatsuya Ikuta, Koji Takahashi, Yasuyuki Takata, Khellil Sefiane
Publikováno v:
AIP Advances, Vol 6, Iss 11, Pp 115119-115119-6 (2016)
Thermal transport in carbon nanofibers (CNFs) was thoroughly investigated. In particular, individual CNFs were suspended on T-type heat nanosensors and their thermal conductivity was measured over a range of temperatures. Unexpectedly, thermal conduc
Externí odkaz:
https://doaj.org/article/d440c9fcacbb4d9698c2c03e3f7554ea