World's Best Scientists 2026 revealed!
Yuichi Otsuka

Yuichi Otsuka

D-Index & Metrics

Earth Science

D-Index
70
Citations
15031
World Ranking
1008
National Ranking
15

Yuichi Otsuka publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Yuichi Otsuka sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

This scientist: 504 publications — 98th percentile

98% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 510 publications or more.

Yuichi Otsuka D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Yuichi Otsuka sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

This scientist: 70 D-Index — 88th percentile

88% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 94 D-Index or more.

Overview

Yuichi Otsuka is affiliated with Nagoya University in Japan and has an extensive research portfolio primarily in the field of Engineering. Their work focuses on multiple subfields including Mechanical Engineering, Surgery, Mechanics of Materials, Biomedical Engineering, and Astronomy and Astrophysics.

Their publications address a range of specialized topics such as Orthopaedic implants and arthroplasty, Bone Tissue Engineering Materials, Metal and Thin Film Mechanics, Dental materials and restorations, Powder Metallurgy Techniques and Materials, Fatigue and fracture mechanics, and Additive Manufacturing and 3D Printing Technologies.

Otsuka has contributed to several papers spanning recent years. Examples include:

  • Fatigue crack deflection and branching behavior of low carbon steel under mechanically large grain condition, 2021, International Journal of Fatigue
  • Proposal of a Validation Method of Failure Mode Analyses based on the Stress-Strength Model with a Support Vector Machine, 2020, Reliability Engineering & System Safety
  • Effects of composition of hydroxyapatite/gray titania coating fabricated by suspension plasma spraying on mechanical and antibacterial properties, 2021, Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials
  • Effect of coating thickness on fatigue behavior of TiAlN coated Ti-alloys, 2020, International Journal of Fatigue
  • Delamination-fretting wear failure evaluation at HAp-Ti-6Al-4V interface of uncemented artificial hip implant, 2021, Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials

The scientist frequently collaborates with several co-authors, with whom they have published multiple works. These include Yukio Miyashita, Yoshiharu Mutoh, Thanh-Tung Duong, and Nguyễn Quang Minh.

Prominent venues for Yuichi Otsuka's research publications include:

  • The Proceedings of Mechanical Engineering Congress Japan
  • The Proceedings of Conference of Hokuriku-Shinetsu Branch
  • Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials
  • Keisan Rikigaku Koenkai koen ronbunshu/Keisan Rikigaku Kouenkai kouen rombunshuu
  • The Proceedings of the Materials and Mechanics Conference

Best Publications

  • A new technique for mapping of total electron content using GPS network in Japan

    Y. Otsuka;T. Ogawa;A. Saito;A. Saito;T. Tsugawa

  • Ionospheric disturbances detected by GPS total electron content observation after the 2011 off the Pacific coast of Tohoku Earthquake

    T. Tsugawa;A. Saito;Y. Otsuka;M. Nishioka

  • Statistical study of nighttime medium‐scale traveling ionospheric disturbances using midlatitude airglow images

    K. Shiokawa;C. Ihara;C. Ihara;Y. Otsuka;T. Ogawa

  • Geomagnetic conjugate observations of medium-scale traveling ionospheric disturbances at midlatitude using all-sky airglow imagers

    Y. Otsuka;K. Shiokawa;T. Ogawa;P. Wilkinson

  • Medium‐scale traveling ionospheric disturbances detected with dense and wide TEC maps over North America

    T. Tsugawa;Y. Otsuka;A. J. Coster;A. Saito

  • A physical mechanism of positive ionospheric storms at low latitudes and midlatitudes

    N. Balan;N. Balan;K. Shiokawa;Y. Otsuka;T. Kikuchi

  • GPS observations of medium-scale traveling ionospheric disturbances over Europe

    Y. Otsuka;K. Suzuki;S. Nakagawa;M. Nishioka;M. Nishioka

  • Global imaging of polar cap patches with dual airglow imagers

    K. Hosokawa;S. Taguchi;K. Shiokawa;Y. Otsuka

  • Statistical study of medium-scale traveling ionospheric disturbances observed with the GPS networks in Southern California

    Nobuki Kotake;Yuichi Otsuka;Tadahiko Ogawa;Takuya Tsugawa

  • A statistical study of large-scale traveling ionospheric disturbances using the GPS network in Japan

    T. Tsugawa;T. Tsugawa;A. Saito;Y. Otsuka

  • Three‐dimensional simulation of the coupled Perkins and Es‐layer instabilities in the nighttime midlatitude ionosphere

    Tatsuhiro Yokoyama;David L. Hysell;Yuichi Otsuka;Mamoru Yamamoto

  • Ground and satellite observations of nighttime medium‐scale traveling ionospheric disturbance at midlatitude

    K. Shiokawa;Y. Otsuka;C. Ihara;C. Ihara;T. Ogawa

  • Geomagnetic conjugate observations of equatorial airglow depletions

    Y. Otsuka;K. Shiokawa;T. Ogawa;P. Wilkinson

  • Detection of ruptures of Andaman fault segments in the 2004 great Sumatra earthquake with coseismic ionospheric disturbances

    Kosuke Heki;Yuichi Otsuka;Nithiwatthn Choosakul;Narong Hemmakorn

  • Climatological study of GPS total electron content variations caused by medium‐scale traveling ionospheric disturbances

    N. Kotake;Y. Otsuka;T. Tsugawa;T. Ogawa

  • Super plasma fountain and equatorial ionization anomaly during penetration electric field

    N. Balan;N. Balan;K. Shiokawa;Y. Otsuka;S. Watanabe

  • Vertical connection from the tropospheric activities to the ionospheric longitudinal structure simulated by a new Earth's whole atmosphere-ionosphere coupled model

    H. Jin;Yasunobu Miyoshi;H. Fujiwara;H. Shinagawa

  • A climatology of F region gravity wave propagation over the middle and upper atmosphere radar

    W. L. Oliver;Y. Otsuka;M. Sato;T. Takami

  • Propagation characteristics of nighttime mesospheric and thermospheric waves observed by optical mesosphere thermosphere imagers at middle and low latitudes

    K. Shiokawa;Y. Otsuka;T. Ogawa

  • Simultaneous observations of nighttime medium-scale traveling ionospheric disturbances and E region field-aligned irregularities at midlatitude

    Y. Otsuka;F. Onoma;K. Shiokawa;T. Ogawa

  • Ground and satellite observations of nighttime medium-scale traveling ionospheric disturbance at midlatitude

    Y. Otsuka;K. Shiokawa;C. Ihara;T. Ogawa

Frequent Co-Authors

Kazuo Shiokawa
Kazuo Shiokawa Nagoya University
Tadahiko Ogawa
Tadahiko Ogawa National Institute of Information and Communications Technology
Mamoru Yamamoto
Mamoru Yamamoto Kyoto University
Akinori Saito
Akinori Saito Kyoto University
Takuji Nakamura
Takuji Nakamura National Institute of Polar Research
Shoichiro Fukao
Shoichiro Fukao Kyoto University
Yoshizumi Miyoshi
Yoshizumi Miyoshi Nagoya University
Yukio Miyashita
Yukio Miyashita Nagaoka University of Technology
N. Balan
N. Balan National Central University
Ryuho Kataoka
Ryuho Kataoka National Institute of Polar Research

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