Výsledky vyhledávání - "Toshiyuki Ogawa"

Existence and stability of non-monotone travelling wave solutions for the diffusive Lotka–Volterra system of three competing species

Autor: Masayasu Mimura, Chueh Hsin Chang, Chiun Chuan Chen, Li Chang Hung, Toshiyuki Ogawa

Publikováno v: Nonlinearity. 33:5080-5110

This paper considers the problem: if coexistence occurs in the long run when a third species w invades an ecosystem consisting of two species u and v on , where u, v and w compete with one another. Under the assumption that the influence of w on u an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9627dc921f8eb2508ee91255e3ae8e8a
https://doi.org/10.1088/1361-6544/ab9244

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Mathematical Modeling of Dynamic Cellular Association Patterns in Seminiferous Tubules

Autor: Toshiyuki Ogawa, Mari Kawamura, Hisako Takigawa-Imamura, Kei Sugihara, Takashi Miura

Publikováno v: Bulletin of Mathematical Biology. 83

In vertebrates, sperm is generated in testicular tube-like structures called seminiferous tubules. The differentiation stages of spermatogenesis exhibit a dynamic spatiotemporal wavetrain pattern. There are two types of pattern-the vertical type, whi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dfe3acb6f2a1915518290a51a5d4a66
https://doi.org/10.1007/s11538-021-00863-x

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Cascoded GaN half-bridge with 17 MHz wide-band galvanically isolated current sensor

Autor: Hideaki Majima, Hiroaki Ishihara, Katsuyuki Ikeuchi, Toshiyuki Ogawa, Yuichi Sawahara, Tatsuhiro Ogawa, Satoshi Takaya, Kohei Onizuka, Osamu Watanabe

Publikováno v: Japanese Journal of Applied Physics. 61:SC1052

A cascoded GaN half-bridge with a wide-band galvanically isolated current sensor is proposed. A 650 V depletion-mode GaN field-effect transistor is switched by a low-propagation-delay gate driver in active-mode. The standby and active modes are switc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a40879af3eebadf3d153ad7f1ee75d31
https://doi.org/10.35848/1347-4065/ac4446

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Spiral breakup in a RD system of cardiac excitation due to front–back interaction

Autor: Toshiyuki Ogawa, M. Osman Gani

Publikováno v: Wave Motion. 79:73-83

We consider a two-variable partial differential equations model of cardiac excitation and study spiral wave instability in a one-parameter family of solutions. We investigate numerically the existence of periodic traveling wave solution and show the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1fd9190677d4dfa4e7b51e459e3e4afe
https://doi.org/10.1016/j.wavemoti.2018.02.010

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