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University · Nagaoka · Japan

Nagaoka National College of Technology

In research, Nagaoka National College of Technology stands highest in Engineering (#3,948 of 11,412 worldwide) and Physical Sciences (#7,753 of 21,541 worldwide), over all time.

nagaoka-ct.ac.jpROR OpenAlex
World rank, all time
#13,909
of 42,892
Rank in Japan
#532
of 2,112
Research works
568
▼ 45% vs 2013–17
Citations
9.5k
16.8 per fractional work
Top-10% rate
5.7%
record average 16.5%
Open access
50%
world 28%

What is Nagaoka National College of Technology known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
EngineeringField #3,948 of 11,412 9.3%257
Physical SciencesDomain #7,753 of 21,541 9.9%481

Each strip is that field’s whole ranked pool, with the notch where Nagaoka National College of Technology sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 1.32× its world share, 3 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.28× its world share, 1 worksBiochemistry, Geneti…Immunology and Microbiology: 0.12× its world share, 0 worksImmunology and Micro…Neuroscience: 0.46× its world share, 0 worksNeuroscienceChemical Engineering: 1.06× its world share, 0 worksChemical EngineeringChemistry: 0.20× its world share, 0 worksChemistryComputer Science: 0.55× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 0.78× its world share, 0 worksEarth and Planetary …Energy: 2.86× its world share, 1 worksEnergyEngineering: 2.99× its world share, 20 worksEngineeringEnvironmental Science: 1.40× its world share, 3 worksEnvironmental ScienceMaterials Science: 5.39× its world share, 8 worksMaterials SciencePhysics and Astronomy: 1.60× its world share, 2 worksPhysics and AstronomyDentistry: 1.53× its world share, 0 worksDentistryHealth Professions: 0.21× its world share, 0 worksHealth ProfessionsMedicine: 0.19× its world share, 2 worksMedicineNursing: 0.93× its world share, 0 worksNursingArts and Humanities: 0.09× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.52× its world share, 1 worksBusiness, Management…Economics, Econometrics and Finance: 0.12× its world share, 0 worksEconomics, Econometr…Psychology: 0.10× its world share, 0 worksPsychologySocial Sciences: 0.04× its world share, 0 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Materials Science, 5.4×. Every wedge is a field page.

Who are the top researchers at Nagaoka National College of Technology?

Ranked on the composite score, Hironori Katagiri, Hideaki Araki and Yuki Murakami lead among researchers whose main affiliation is Nagaoka National College of Technology.

  1. 1 Hironori Katagiri Japan · #527,860 worldwide 117 citations · 31 works
  2. 2 Hideaki Araki Japan · #1,118,251 worldwide 97 citations · 37 works
  3. 3 Yuki Murakami Japan · #1,227,148 worldwide 48 citations · 38 works
  4. 4 Yukihiko Inoue Japan · #1,337,203 worldwide 22 citations · 43 works
  5. 5 Fujio IKEDA Japan · #1,523,201 worldwide 5 citations · 27 works
  6. 6 Shigehiro TOYAMA Japan · #1,568,521 worldwide 0 citations · 21 works
  7. 7 Masaru Shibata Japan · #1,577,664 worldwide 0 citations · 16 works
  8. 8 Nobuo Araki Japan · #1,593,324 worldwide 19 citations · 17 works
  9. 9 Naritoshi Aoyagi Japan · #1,610,030 worldwide 2 citations · 15 works
All ranked researchers at Nagaoka National College of Technology

Which keywords describe research at Nagaoka National College of Technology?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Nanocrystals, Photovoltaics, Semiconductor, Solar Cell Efficiency, Efficiency, CZTS, Thin-Film Solar Cells and Solar Cells.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 33 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 33 words, with their numbers
  1. Nanocrystals9▲ 72×5 topics
  2. Photovoltaics7▲ 97×3 topics
  3. Semiconductor6▲ 37×3 topics
  4. Solar Cell Efficiency6▲ 117×2 topics
  5. Efficiency5▲ 37×3 topics
  6. CZTS5▲ 183×1 topic
  7. Thin-Film Solar Cells5▲ 183×1 topic
  8. Solar Cells4▲ 38×6 topics
  9. Biomedical Applications2▲ 4.5×10 topics
  10. Deep Learning2▲ 1.56×12 topics
  11. Mechanical Properties2▲ 5.6×10 topics
  12. Semiconductor Nanocrystals2▲ 50×2 topics
  13. Nanomaterials2▲ 4.8×7 topics
  14. Nanostructures2▲ 13×3 topics
  15. Bioimaging2▲ 22×1 topic
  16. Quantum Dots2▲ 53×1 topic
  17. Tissue Engineering2▲ 7.9×5 topics
  18. Characterization2▲ 33×2 topics
  19. Synthesis2▲ 10×2 topics
  20. Biomaterials2▲ 15×3 topics
  21. Environmental Impact2▲ 1.98×7 topics
  22. Cu2O1▲ 72×1 topic
  23. CuO1▲ 72×1 topic
  24. Lithium-ion Batteries1▲ 6.9×3 topics
  25. Nonlinear Dynamics1▲ 13×3 topics
  26. Bone Regeneration1▲ 23×2 topics
  27. Graphene1▲ 3.9×4 topics
  28. Finite Element Method1▲ 24×2 topics
  29. Nanoparticles1▲ 1.91×7 topics
  30. Control1▲ 17×1 topic
  31. Hydraulic Systems1▲ 38×1 topic
  32. Visible Light1▲ 9.6×2 topics
  33. Water Splitting1▲ 6.1×2 topics

Which research topics does Nagaoka National College of Technology publish most on?

By volume in 2022–2025: Chalcogenide Semiconductor Thin Films, Quantum Dots Synthesis And Properties, Copper-based nanomaterials and applications and Hydraulic and Pneumatic Systems.

Chalcogenide Semiconduct…5Chalcogenide Semiconductor Thin Films: 5 fractional worksQuantum Dots Synthesis A…2Quantum Dots Synthesis And Properties: 2 fractional worksCopper-based nanomateria…1Copper-based nanomaterials and applications: 1 fractional worksHydraulic and Pneumatic Systems: 1 fractional worksBone Tissue Engineering Materials: 1 fractional worksTopology Optimization in Engineering: 1 fractional worksAdvanced Photocatalysis Techniques: 1 fractional worksSemiconductor materials and interfaces: 1 fractional worksStructural Health Monitoring Techniques: 1 fractional worksLuminescence Properties of Advanced Materials: 1 fractional works
Electrical and Electronic EngineeringMaterials ChemistryMechanical EngineeringBiomedical Engineering3 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Chalcogenide Semiconductor Thin Films Electrical and Electronic Engineering 5 works
  2. 2 Quantum Dots Synthesis And Properties Materials Chemistry 2 works
  3. 3 Copper-based nanomaterials and applications Materials Chemistry 1 works
  4. 4 Hydraulic and Pneumatic Systems Mechanical Engineering 1 works
  5. 5 Bone Tissue Engineering Materials Biomedical Engineering 1 works
  6. 6 Topology Optimization in Engineering Civil and Structural Engineering 1 works
  7. 7 Advanced Photocatalysis Techniques Renewable Energy, Sustainability and the Environment 1 works
  8. 8 Semiconductor materials and interfaces Atomic and Molecular Physics, and Optics 1 works
  9. 9 Structural Health Monitoring Techniques Civil and Structural Engineering 1 works
  10. 10 Luminescence Properties of Advanced Materials Materials Chemistry 1 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available49.5%not open50.5%

World: 28% of research is openly available.

with international co-authors7.7%domestic only92.3%

World: 19% is written across borders.

How has Nagaoka National College of Technology's research output changed?

Output in 2018–2022 was 45% lower than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Nagaoka

All research institutions in Nagaoka

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.