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Researcher · Gakushuin University · Japan

T. Hirayama

T. Hirayama publishes mostly in Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering, on topics such as Solar and Space Plasma Dynamics, Military Technology and Strategies and Linguistic, Cultural, and Literary Studies.

ORCID 0000-0002-8087-3965 OpenAlex
World rank
#963,339
of 1,633,909 ranked researchers
Rank in Japan
#51,764
of 114,622
Works
57
Citations
78
Citations per work
1.4

What does T. Hirayama research?

Astronomy and Astrophysics: 14.6%Atomic and Molecular Physics, and Optics: 13.4%Electrical and Electronic Engineering: 11.0%Aerospace Engineering: 6.1%other fields: 54.9%15%top field
Astronomy and Astrophysics14.6%Atomic and Molecular Physics, and Optics13.4%Electrical and Electronic Engineering11.0%Aerospace Engineering6.1%other fields54.9%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Astronomy and Astrophysics15% of their works
  2. 2Atomic and Molecular Physics, and Optics13% of their works
  3. 3Electrical and Electronic Engineering11% of their works
  4. 4Aerospace Engineering6% of their works
  5. 5Transportation5% of their works
  6. 6Sociology and Political Science5% of their works

Research topics

Which keywords describe T. Hirayama's research?

The keywords of their largest research topics: Coronal Mass Ejections, Solar Dynamics Observatory, Air Force, Culture, Islam, Legal Regulation, Modernization and Transport Policy.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 16 words, with their numbers
  1. Coronal Mass Ejections61 topic
  2. Solar Dynamics Observatory61 topic
  3. Air Force41 topic
  4. Culture41 topic
  5. Islam41 topic
  6. Legal Regulation41 topic
  7. Modernization41 topic
  8. Transport Policy41 topic
  9. Density Functional Theory31 topic
  10. Dispersion Correction31 topic
  11. GRACE31 topic
  12. Helium Nanodroplets31 topic
  13. Ion Beam31 topic
  14. Quantum Turbulence31 topic
  15. Sea Level Rise31 topic
  16. Surface Analysis31 topic

Where does T. Hirayama work?

T. Hirayama's main affiliation in the publication record is Gakushuin University, Japan.

How many publications and citations does T. Hirayama have?

Science Explorer counts 57 works and 78 citations for T. Hirayama, ranking #963,339 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Other researchers named T. Hirayama

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