Iwai Kazumasa

イワイカズマサ | Iwai Kazumasa

Affiliation and department：
Job title： Associate professor
Homepage URL (1)： http://www.isee.nagoya-u.ac.jp/~k.iwai/

Research field (3)： Disaster prevention engineering , Astronomy , Space and planetary science

Research keywords (8)： CME , Data assimilation , Digital devices , Radio telescope , Space , Space Weather , Sun , Solar Wind

Research theme for competitive and other funds (10)：

2024 - 2029 革新的電波観測による太陽嵐予測の実現
2022 - 2025 Lunar weather forecast by space weather radar and data assimilation simulation
2021 - 2025 Investigation of three-dimensional structure of solar storms using the radio observation with leading-edge digital signal processing
2020 - 2022 Studies on solar storms by developing multi directional radio observation instruments
2019 - 2022 Forecasting of space disasters using advanced ICT: Challenge to the speace meteorological radar

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Papers (44)：

Cho, Kyung-Suk, Kim, Junyoung, Kim,Rok-Soon, Park, Eunsu, Kubo, Yûki, Iwai, Kazumasa. Automatic Detection of Type II Solar Radio Burst by Using 1-D Convolution Neutral Network. Journal of The Korean Astronomical Society. 2023. 56. 2. 213-224
Munetoshi Tokumaru, Miho Nagai, Ken’ichi Fujiki, Kazumasa Iwai. East-West Asymmetry in Interplanetary-Scintillation-Level Variation Associated with Solar-Wind Disturbances. Solar Physics. 2023. 298. 11
Bernard V. Jackson, Munetoshi Tokumaru, Kazumasa Iwai, Matthew T. Bracamontes, Andrew Buffington, Ken’ichi Fujiki, Go Murakami, Daniel Heyner, Beatriz Sanchez-Cano, Mathias Rojo, et al. Forecasting Heliospheric CME Solar-Wind Parameters Using the UCSD Time-Dependent Tomography and ISEE Interplanetary Scintillation Data: The 10 March 2022 CME. Solar Physics. 2023. 298. 5
Munetoshi Tokumaru, Ken'ichi Fujiki, Kazumasa Iwai. Interplanetary Scintillation Observations of Solar-Wind Disturbances During Cycles 23 and 24. SOLAR PHYSICS. 2023. 298. 2
T. S. Bastian, M. Shimojo, M. Bárta, S. M. White, K. Iwai. Solar observing with the Atacama large millimeter-submillimeter array. Frontiers in Astronomy and Space Sciences. 2022. 9

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MISC (10)：

Tsuchiya, F, H. Misawa, T. Obara, K. Iwai, K. Kaneda, S. Matsumoto, A. Kumamoto, Y. Katoh, M. Yagi, B. Cecconi. Database of Solar Radio Bursts Observed by Solar Radio Spectro-polarimeter AMATERAS. Planetary Radio Emission 8. 2017. 445-453
Hiroki Nakahara, Hiroyuki Nakanishi, Kazumasa Iwai, Tsutomu Sasao. An FFT Circuit for a Spectrometer of a Radio Telescope using the Nested RNS including the Constant Division. SIGARCH Computer Architecture News. 2016. 44. 4. 44-49
Hiroki Nakahara, Tsutomu Sasao, Hiroyuki Nakanishi, Kazumasa Iwai, Tohru Nagao, Naoya Ogawa. An FFT Circuit Using Nested RNS in a Digital Spectrometer for a Radio Telescope. 2016 IEEE 46TH INTERNATIONAL SYMPOSIUM ON MULTIPLE-VALUED LOGIC (ISMVL 2016). 2016. 60-65
Hiroki Nakahara, Tsutomu Sasao, Hiroyuki Nakanishi, Kazumasa Iwai. An RNS FFT Circuit Using LUT Cascades Based on a Modulo EVMDD. Proceedings of The International Symposium on Multiple-Valued Logic. 2015. 2015-September. 97-102
NAKAHARA Hiroki, NAKANISHI Hiroyuki, IWAI Kazumasa. An AWF Digital Spectrometer for a Radio Telescope. Technical report of IEICE. VLD. 2015. 114. 426. 67-72

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Books (2)：

Solar-terrestrial environmental prediction
Springer 2023 ISBN:9789811977640
PSTEP Open Textbook
2021

Education (2)：

2007 - 2012 Tohoku University Graduate School, Division of Natural Science
2003 - 2007 Tohoku University Faculty of Science

Work history (4)：

2017/04/01 - 現在 Nagoya University Institute for Space-Earth Environmental Research Division for Heliospheric Research Associate professor
2015/04/01 - 2017/03/31 National Institute of Information and Communications Technology (NICT) Applied Electromagnetic Research Institute JSPS research fellow
2017/01/17 - 2017/03/24 National Radio Astronomy Observatory Guest Researcher
2012/04/01 - 2015/03/31 National Astronomical Observatory of Japan Nobeyama Solar Radio Observatory Postdoctoral Fellow

Committee career (4)：

2021/12 - 現在 apan Solar Physics Community (JSPC) Steering Committee
2020/04 - 現在文部科学省科学技術・学術政策研究所科学技術予測センター専門調査員
2019/06 - 2023/05 日本天文学会天文月報編集委員
2018/07 - 2022/06 国立天文台研究交流委員会研究交流委員

Awards (4)：

2020/11 - Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS) Obayashi Early Career Scientist Award Studies on solar atmosphere and heliosphere based on the development of leading-edge radio telescopes
2020/10 - Alumni Association, Tohoku University Department of Physics Sensyuu-kai Early Career Scientist Award
2012/05 - Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS) Student Presentation Award (Aurora Medal) Fine spectrum structures of solar radio type-I burst
2009/05 - Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS) Student Presentation Award (Aurora Medal) The development of wide band solar radio polarization spectrograph

Association Membership(s) (4)：

International Astronomical Union (IAU) , The Astronomical Society of Japan , The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS) , JAPAN GEOSCIENCE UNION

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