T
Takumi Ichinose
Researcher at Doshisha University
Publications - 9
Citations - 97
Takumi Ichinose is an academic researcher from Doshisha University. The author has contributed to research in topics: Acoustic wave & Polarization (waves). The author has an hindex of 4, co-authored 9 publications receiving 89 citations.
Papers
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Journal ArticleDOI
HF-Doppler observations of acoustic waves excited by the Urakawa-Oki earthquake on 21 March 1982
Teruya Tanaka,Takumi Ichinose,Takashi Okuzawa,Takashi Shibata,Yoshiaki Sato,Chikao Nagasawa,Toru Ogawa +6 more
TL;DR: In this article, the authors used the Urakawa-Oki earthquake at 0232 UT on 21 March 1982 to detect ionospheric disturbances by a network of HF-Doppler sounders in central Japan.
Journal ArticleDOI
Short-period disturbances in the ionosphere observed at the time of typhoons in September 1982 by a network of HF Doppler receivers
Takashi Okuzawa,Takashi Shibata,Takumi Ichinose,Kazuyoshi Takagi,Chikao Nagasawa,Isamu Nagano,Masayoshi Mambo,M. Tsutsui,Toru Ogawa +8 more
TL;DR: In this article, short-period disturbances of the ionosphere were observed by a network of HF Doppler receivers in central Japan at the time of typhoon 18 and 19 which crossed the Islands of Japan successively in September 1982.
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HF Doppler observation associated with magnetic storm
Takumi Ichinose,Toru Ogawa +1 more
TL;DR: In this paper, the phase relationship between the frequency shifts and the geomagnetic variations on the basis of the theory as suggested by Jacobs and Watanabe is investigated, and the calculated values of the Doppler shift almost coincides with the observational results.
HF Doppler observations of acoustic waves excited by the earthquake
Takumi Ichinose,K. Takagi,T. Tanaka,Takashi Okuzawa,T. Shibata,Y. Sato,Chikao Nagasawa,Toru Ogawa +7 more
TL;DR: In this paper, the Urakawa-Oki earthquake was detected by a network of HF-Doppler sounders in central Japan and Kyoto station, respectively, and it was shown that the atmosphere acts as a low-pass filter for upward-propagating acoustic waves.
Journal ArticleDOI
High-Resolution Temperature Measurement Using Phase-Compensating Interferometer and Frequency-Monitoring Interferometer
TL;DR: In this paper, a noncontact interferometric thermometry method based on phase-compensating interferometry is described, where direct frequency monitoring by the reference interferometer connected in parallel to the sensing interferometers provides temperature measurement of high accuracy.