Zobrazeno 1 - 10 of 27 pro vyhledávání: '"Atsushi Wakai"'
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Akademický článek
Estimation of source, path, and site factors of S waves recorded at the S-net sites in the Japan Trench area using the spectral inversion technique
Autor: Yadab P. Dhakal, Takashi Kunugi, Hiroaki Yamanaka, Atsushi Wakai, Shin Aoi, Azusa Nishizawa
Publikováno v: Earth, Planets and Space, Vol 75, Iss 1, Pp 1-23 (2023)
Abstract S-net is a large-scale ocean bottom (OB) network in the Japan Trench area, consisting of inline-type 150 observatories equipped with seismometers and pressure gauges. Among them, 41 observatories have been buried about one meter beneath the
Externí odkaz: https://doaj.org/article/25f02f9b6cbb492a91040b5e20864105
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2
Modeling of Subsurface Velocity Structures from Seismic Bedrock to Ground Surface in the Tokai Region, Japan, for Broadband Strong Ground Motion Prediction
Autor: Shigeki Senna, Atsushi Yatagai, Kaoru Jin, Hisanori Matsuyama, Yoshiaki Inagaki, Haruhiko Suzuki, Atsushi Wakai, Hiroyuki Fujiwara
Publikováno v: Journal of Disaster Research. 14:1140-1153
For sophistication of strong ground motion prediction in terms of disaster mitigation, one of the principal issues is to model subsurface velocity structures so that characteristics of earthquake ground motions can be reproduced in the broadband rang
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::99922c6816e868dc63d665b3d8ee960d
https://doi.org/10.20965/jdr.2019.p1140
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3
Modeling of the Subsurface Structure from the Seismic Bedrock to the Ground Surface for a Broadband Strong Motion Evaluation in Kumamoto Plain
Autor: Shigeki Senna, Haruhiko Suzuki, Atsushi Yatagai, Atsushi Wakai, Hiroyuki Fujiwara, Hisanori Matsuyama
Publikováno v: Journal of Disaster Research. 13:917-927
During the 2016 Kumamoto earthquakes, two earthquakes of seismic intensity 7 were observed in Mashiki Town, the foreshock (MJMA6.5) of April 14 and the main shock (MJMA7.3) of April 16, resulting in significant damage to structures near the fault. Th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2872c7e6a0ba1373ec8fd80cfc97a36c
https://doi.org/10.20965/jdr.2018.p0917
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5
Isotopic effect in the (2+1) REMPI spectra of 13C-substituted methyl iodide for UV selective dissociation
Autor: Toshimitsu Fukumura, Kazuki Tsuchida, Kazutoshi Suzuki, Atsushi Wakai
Publikováno v: Chemical Physics Letters. 516:23-28
To investigate a possible means of achieving isotopic enrichment of methyl iodide (CH3I), we studied the 6s Rydberg states of 13,12CH3I by (2 + 1) resonance-enhanced multiphoton ionization. For band (v3 hot band) excitation (at a full width at half m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e9dd589cf3ac12eef075c1d211fc54e
https://doi.org/10.1016/j.cplett.2011.09.068
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6
Confirming the existence of five peaks in129Xe rat head spectra
Autor: Atsushi Wakai, Jeff Kershaw, Kazuhiro Nakamura, Yasushi Kondoh, Nobuko Suzuki, Iwao Kanno
Publikováno v: Magnetic Resonance in Medicine. 57:791-797
A series of experiments were performed to investigate why two peaks (D and E) of the five dissolved phase peaks in hyperpolarized 129Xe rat head spectra appeared inconsistently in previous work. Specifically, spectra were acquired under conditions of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22de6a149046f02cf314a2fc83d50ef6
https://doi.org/10.1002/mrm.21186
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8
129Xe spectra from the heads of rats with and without ligation of the external carotid and pterygopalatine arteries
Autor: Iwao Kanno, Yasushi Kondoh, David W. Wright, Atsushi Wakai, Jeff Kershaw, Kazuhiro Nakamura
Publikováno v: Magnetic Resonance in Medicine. 53:528-534
After rats inhaled hyperpolarized (129)Xe gas, in vivo spectra from their heads revealed a dominant peak around 195 ppm, another easily resolvable peak near 189 ppm, a broad peak around 210 ppm, and two minor peaks around 198 ppm and 192 ppm. However
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8c1137d68f307e06538383c738d1873
https://doi.org/10.1002/mrm.20399
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A Method for Measuring the Decay Time of Hyperpolarized 129Xe Magnetization in Rat Brain without Estimation of RF Flip Angles
Autor: Yasushi Kondoh, Iwao Kanno, David W. Wright, Jeff Kershaw, Kazuhiro Nakamura, Atsushi Wakai
Publikováno v: Magnetic Resonance in Medical Sciences. 4:19-25
Purpose: The decay time of hyperpolarized 129Xe in brain tissue depends on the cerebral blood flow (CBF) as well as the longitudinal relaxation time in the tissue (T1,tissue). Therefore, the decay time is an important parameter for investigating the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4002a9be0808097054254b884e487a3c
https://doi.org/10.2463/mrms.4.19
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