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Akademický článek

High-efficiency sound source localization using data-driven sparse sampling with validation using monopole laser sound source

Autor: S. Kaneko, Y. Ozawa, K. Nakai, Y. Saito, K. Asai, T. Nonomura, H. Ura

Publikováno v: AIP Advances, Vol 14, Iss 6, Pp 065025-065025-14 (2024)

This study proposes a framework that reduces the calculation cost of sound source localization with the Amiet model, using a data-driven sparse sampling method. This method accelerates the calculation of the steering vector used in conventional beamf

Externí odkaz: https://doaj.org/article/dc5e501d77f84eeb94654342d62314b2

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Akademický článek

First High‐Speed Video Camera Observations of a Lightning Flash Associated With a Downward Terrestrial Gamma‐Ray Flash

Autor: R. U. Abbasi, M. M. F. Saba, J. W. Belz, P. R. Krehbiel, W. Rison, N. Kieu, D. R. daSilva, M. A. Stanley, Dan Rodeheffer, J. Remington, J. Mazich, R. LeVon, K. Smout, A. Petrizze, T. Abu‐Zayyad, M. Allen, R. Arimura, E. Barcikowski, D. R. Bergman, S. A. Blake, I. Buckland, B. G. Cheon, M. Chikawa, T. Fujii, K. Fujisue, K. Fujita, R. Fujiwara, M. Fukushima, G. Furlich, N. Globus, R. Gonzalez, W. Hanlon, N. Hayashida, H. He, K. Hibino, R. Higuchi, K. Honda, D. Ikeda, N. Inoue, T. Ishii, H. Ito, D. Ivanov, H. Iwakura, A. Iwasaki, H. M. Jeong, S. Jeong, C. C. H. Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, S. Kasami, S. Kawakami, K. Kawata, I. Kharuk, E. Kido, H. B. Kim, J. H. Kim, S. W. Kim, Y. Kimura, I. Komae, Y. Kubota, M. Kuznetsov, Y. J. Kwon, K. H. Lee, B. Lubsandorzhiev, J. P. Lundquist, T. Matsuyama, J. N. Matthews, R. Mayta, I. Myers, S. Nagataki, K. Nakai, R. Nakamura, T. Nakamura, A. Nakazawa, E. Nishio, T. Nonaka, S. Ogio, M. Ohnishi, H. Ohoka, Y. Oku, T. Okuda, Y. Omura, M. Ono, A. Oshima, S. Ozawa, I. H. Park, M. Potts, M. S. Pshirkov, D. C. Rodriguez, C. Rott, G. I. Rubtsov, D. Ryu, H. Sagawa, N. Sakaki, T. Sako, N. Sakurai, K. Sato, T. Seki, K. Sekino, P. D. Shah, Y. Shibasaki, N. Shibata, T. Shibata, J. Shikita, H. Shimodaira, B. K. Shin, H. S. Shin, D. Shinto, J. D. Smith, P. Sokolsky, B. T. Stokes, T. A. Stroman, K. Takahashi, M. Takamura, M. Takeda, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, K. Tanaka, M. Tanaka, S. B. Thomas, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, R. Tsuda, Y. Tsunesada, S. Udo, T. Uehama, F. Urban, D. Warren, T. Wong, M. Yamamoto, K. Yamazaki, K. Yashiro, F. Yoshida, Y. Zhezher, Z. Zundel

Publikováno v: Geophysical Research Letters, Vol 50, Iss 14, Pp n/a-n/a (2023)

Abstract In this paper, we present the first high‐speed video observation of a cloud‐to‐ground lightning flash and its associated downward‐directed Terrestrial Gamma‐ray Flash (TGF). The optical emission of the event was observed by a high�

Externí odkaz: https://doaj.org/article/6abfefcf5d0a4b1a8d8cbe1c938c959c

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Akademický článek

Estimation of Polychlorinated Biphenyls Intake through Fish Oil-Derived Dietary Supplements and Prescription Drugs in the Japanese Population

Autor: Y. Matsuo, K. Nakai, I. Sakuma, K. Akutsu, N. Tatsuta, M. Ishiyama, T. Higuchi, N. Ryuda, D. Ueno

Publikováno v: Journal of Food Quality and Hazards Control, Vol 6, Iss 4, Pp 146-152 (2019)

Background: Oily fish and their extracted oils may be a source of polychlorinated biphenyls (PCBs) which can induce toxic effects on the consumers. The main aim of this survey was estimation of PCBs intake through fish oil-derived dietary supplements

Externí odkaz: https://doaj.org/article/dacb6c535a1e42848bf46e2855fab24f

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Observation site selection for physical model parameter estimation towards process-driven seismic wavefield reconstruction

Autor: K Nakai, T Nagata, K Yamada, Y Saito, T Nonomura, M Kano, S Ito, H Nagao

Publikováno v: Geophysical Journal International. 234:1786-1805

The ``big'' seismic data not only acquired by seismometers but also acquired by vibrometers installed in buildings and infrastructure and accelerometers installed in smartphones will be certainly utilized for seismic research in the near future. Sinc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8e438a02b36ffd3cb0ee813c002d78b
https://doi.org/10.1093/gji/ggad165

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Seismic wavefield reconstruction based on compressed sensing using data-driven reduced-order model

Autor: T Nagata, K Nakai, K Yamada, Y Saito, T Nonomura, M Kano, S Ito, H Nagao

Publikováno v: Geophysical Journal International. 233:33-50

SUMMARY Reconstruction of the distribution of ground motion due to an earthquake is one of the key technologies for the prediction of seismic damage to infrastructure. Particularly, the immediate reconstruction of the spatially continuous wavefield i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee67ee9540398f6327ff27387af10f46
https://doi.org/10.1093/gji/ggac443

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