Dr. Yuichi Otsuka
Department of System Safety

Nagaoka University,Japan
Associate Professor

Email: [email protected]

Qualifications

Ph.D., Kyushu University, Japan

M.Sc., Kyushu University, Japan

B.Sc., Kyushu University, Japan

Publications(Selected)

1. Abadi, Prayitno, et al. "Post-Sunrise Ionospheric Irregularities in Southeast Asia During the Geomagnetic Storm on 19–20 April 2024." Remote Sensing 17.16 (2025): 2906.
2. Fathy, Adel, et al. "Insights into Conjugate Hemispheric Ionospheric Disturbances Associated with the Beirut Port Explosion on 4 August 2020 Using Multi Low-Earth-Orbit Satellites." Remote Sensing 17.11 (2025): 1908.
3. Moharana, Samiksha, and Yuichi Otsuka. "Enhancing the fretting damage resistance of suspension plasma sprayed hydroxyapatite coating with Titania addition." Surface and Coatings Technology 476 (2024): 130236.
4. Fu, Weizheng, et al. "Performance of the double-thin-shell approach for studying nighttime medium-scale traveling ionospheric disturbances using two dense GNSS observation networks in Japan." Earth, Planets and Space 76.1 (2024): 7.
5. Sun, Wenjie, et al. "Regional ionospheric super bubble induced by significant upward plasma drift during the 1 December 2023 geomagnetic storm." Journal of Geophysical Research: Space Physics 129.6 (2024): e2024JA032430.
6. Maheswaran, Veera Kumar, et al. "Solar activity dependence for the relationship between nighttime medium-scale traveling ionospheric disturbance and sporadic E (Es) layer activities in summer during 1998–2019 over Japan." Earth, Planets and Space 76.1 (2024): 88.
7. Emmela, Suneetha, et al. "Statistical analysis of global and regional ionospheric total electron content (TEC) using extreme value distributions." IEEE Transactions on Geoscience and Remote Sensing 62 (2023): 1-8.
8. Otsuka, Yuichi, et al. "Synergistic effect of defects and microstructure on fatigue strength of additively manufactured precipitation hardening 17-4PH stainless steel." Engineering Failure Analysis 163 (2024): 108541.
9. Nguyen, Quang Minh, Yuichi Otsuka, and Yukio Miyashita. "A finite element study on the interactive effect between the damage of the cup–bone interface and the bone strain of hip implants under various fixation conditions." Journal of the Mechanical Behavior of Biomedical Materials 144 (2023): 105945.
10. Liu, Jie, et al. "A statistical study of longitudinal extent of Pc1 pulsations using seven PWING ground stations at subauroral latitudes." Journal of Geophysical Research: Space Physics 128.1 (2023): e2021JA029987.
11. Emmela, Suneetha, et al. "An extreme value analysis of long-term GNSS ionospheric total electron content data observed at japan grid point location (34.95° N and 134.05° E)." IEEE Geoscience and Remote Sensing Letters 20 (2023): 1-5.
12. Abadi, Prayitno, et al. "Assessing the potential of ionosonde for forecasting post-sunset equatorial spread F: an observational experiment in Southeast Asia." Earth, Planets and Space 75.1 (2023): 185.

Profile Details
https://www.nagaokaut.ac.jp/j/nyuushi/gb/e/01_mechanical/01_21.html
https://scholar.google.com/citations?user=YEMBUEwAAAAJ&hl=en
https://www.researchgate.net/profile/Yuichi-Otsuka-4

WoS Researcher ID:EIO-9064-2022