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Yumihiko S. Ikura
Researcher at Meiji University
Publications - 24
Citations - 769
Yumihiko S. Ikura is an academic researcher from Meiji University. The author has contributed to research in topics: Belousov–Zhabotinsky reaction & Marangoni effect. The author has an hindex of 12, co-authored 21 publications receiving 584 citations. Previous affiliations of Yumihiko S. Ikura include Yamaguchi University & Hokkaido University.
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Journal ArticleDOI
Tough Physical Double-Network Hydrogels Based on Amphiphilic Triblock Copolymers.
Hui Jie Zhang,Tao Lin Sun,Ao Kai Zhang,Yumihiko S. Ikura,Tasuku Nakajima,Takayuki Nonoyama,Takayuki Kurokawa,Osamu Ito,Hiroyuki Ishitobi,Jian Ping Gong +9 more
TL;DR: A series of physical double-network hydrogels is synthesized based on an amphiphilic triblock copolymer, which contains strong hydrophobic domains and sacrificial dynamic bonds of hydrogen bonds and features improved self-healing and self-recovery abilities.
Journal ArticleDOI
Mode-Switching of the Self-Motion of a Camphor Boat Depending on the Diffusion Distance of Camphor Molecules
Nobuhiko J. Suematsu,Yumihiko S. Ikura,Masaharu Nagayama,Hiroyuki Kitahata,Nao Kawagishi,Mai Murakami,Satoshi Nakata +6 more
TL;DR: In this paper, the authors demonstrated mode-switching of self-motion coupled with diffusion of molecules at a solid/liquid interface, where a camphor boat moved spontaneously on water and the mode of self motion depended on the setup of the boat.
Journal ArticleDOI
Oscillation and Synchronization in the Combustion of Candles
Hiroyuki Kitahata,Junji Taguchi,Masaharu Nagayama,Tatsunari Sakurai,Yumihiko S. Ikura,Atsushi Osa,Yutaka Sumino,Masanobu Tanaka,Etsuro Yokoyama,Hidetoshi Miike +9 more
TL;DR: The mathematical model indicates that the oscillatory combustion in a set of three candles is induced by a lack of oxygen around the burning point, and it is suggested that thermal radiation may be an essential factor of the synchronization.
Journal ArticleDOI
Suppression and regeneration of camphor-driven Marangoni flow with the addition of sodium dodecyl sulfate.
Yumihiko S. Ikura,Ryoichi Tenno,Hiroyuki Kitahata,Hiroyuki Kitahata,Nobuhiko J. Suematsu,Satoshi Nakata +5 more
TL;DR: It is concluded that the regeneration of Marangoni flow originates from an increase in the dissolution rate of camphor into the SDS aqueous solution.
Journal ArticleDOI
Collective motion of symmetric camphor papers in an annular water channel.
TL;DR: Two collective motion modes, discrete and continuous density waves, are generated depending on the number of self-propelled objects, and the difference between these two modes originates from that of the driving mechanism that pushes a camphor paper away from a cluster.