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University · Varna · Bulgaria

Nikola Vaptsarov Naval Academy

In research, Nikola Vaptsarov Naval Academy stands highest in Physical Sciences (#7,780 of 12,888 worldwide) and Engineering (#5,873 of 6,636 worldwide), 2022–2025.

naval-acad.bgROR OpenAlex
World rank, 2022–2025
#14,929
of 28,054 · #30,491 all time
Rank in Bulgaria
#36
of 92
Research works
480
▲ 283% vs 2013–17
Citations
1.3k
2.7 per fractional work
Top-10% rate
4.8%
record average 16.5%
Open access
53%
world 28%

What is Nikola Vaptsarov Naval Academy known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #7,780 of 12,888 3.6%180 #16854
EngineeringField #5,873 of 6,636 4.1%107 #10034

Each strip is that field’s whole ranked pool, with the notch where Nikola Vaptsarov Naval Academy 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: 0.13× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.08× its world share, 1 worksBiochemistry, Geneti…Neuroscience: 0.09× its world share, 0 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.20× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 2.39× its world share, 2 worksChemical EngineeringChemistry: 0.12× its world share, 0 worksChemistryComputer Science: 1.79× its world share, 33 worksComputer ScienceEarth and Planetary Sciences: 1.14× its world share, 4 worksEarth and Planetary …Energy: 0.96× its world share, 2 worksEnergyEngineering: 2.97× its world share, 107 worksEngineeringEnvironmental Science: 1.83× its world share, 22 worksEnvironmental ScienceMaterials Science: 0.19× its world share, 2 worksMaterials ScienceMathematics: 1.16× its world share, 3 worksMathematicsPhysics and Astronomy: 0.70× its world share, 4 worksPhysics and AstronomyDentistry: 0.86× its world share, 1 worksDentistryHealth Professions: 0.20× its world share, 1 worksHealth ProfessionsMedicine: 0.14× its world share, 7 worksMedicineNursing: 0.14× its world share, 0 worksNursingArts and Humanities: 0.02× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 1.37× its world share, 11 worksBusiness, Management…Decision Sciences: 1.70× its world share, 4 worksDecision SciencesEconomics, Econometrics and Finance: 0.92× its world share, 5 worksEconomics, Econometr…Psychology: 0.72× its world share, 5 worksPsychologySocial Sciences: 0.77× its world share, 24 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Engineering, 3.0×. Every wedge is a field page.

Who are the top researchers at Nikola Vaptsarov Naval Academy?

Ranked on the composite score, Nikolay Djagarov lead among researchers whose main affiliation is Nikola Vaptsarov Naval Academy.

  1. 1 Nikolay Djagarov Bulgaria · #1,190,319 worldwide 22 citations · 22 works
All ranked researchers at Nikola Vaptsarov Naval Academy

Which keywords describe research at Nikola Vaptsarov Naval Academy?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Environmental Impact, Maritime Transportation, Emissions, Energy Efficiency, Shipping, Fuel Consumption, Air Quality and Ship Propulsion.

▲ 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 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Environmental Impact29▲ 7.1×13 topics
  2. Maritime Transportation21▲ 165×2 topics
  3. Machine Learning16▲ 2.1×21 topics
  4. Energy Efficiency15▲ 6.8×13 topics
  5. Climate Change15▲ 2.4×7 topics
  6. Emissions15▲ 31×3 topics
  7. Shipping13▲ 109×2 topics
  8. Sustainability13▲ 2.2×13 topics
  9. Neural Networks12▲ 3.3×12 topics
  10. Deep Learning12▲ 1.48×15 topics
  11. Fuel Consumption12▲ 68×2 topics
  12. Air Quality12▲ 27×1 topic
  13. Ship Propulsion12▲ 217×1 topic
  14. Control Systems12▲ 26×7 topics
  15. Remote Sensing12▲ 3.9×13 topics
  16. Power Electronics11▲ 14×7 topics
  17. Risk Assessment11▲ 6.7×6 topics
  18. Artificial Intelligence10▲ 2.9×14 topics
  19. Supply Chain Management9▲ 4.1×7 topics
  20. Collision Avoidance9▲ 21×1 topic
  21. Unmanned Surface Vehicles9▲ 126×1 topic
  22. Logistics8▲ 20×6 topics
  23. Mathematical Modeling7▲ 35×3 topics
  24. Renewable Energy Integration7▲ 8.8×3 topics
  25. Optimization7▲ 6.2×4 topics
  26. Simulation7▲ 11×7 topics
  27. Cyber-Physical Systems6▲ 10.0×8 topics
  28. Electric Drives6▲ 63×2 topics
  29. Cybersecurity6▲ 11×4 topics
  30. Student Engagement6▲ 6.2×3 topics
  31. Wavelet Transform6▲ 11×6 topics
  32. International Law6▲ 7.8×6 topics
  33. Reliability6▲ 30×2 topics
  34. Power Supply5▲ 134×1 topic
  35. Semiconductor Converters5▲ 134×1 topic
  36. Fault Tolerance5▲ 13×2 topics
  37. Fatigue5▲ 17×3 topics
  38. Intelligent Transport Systems4▲ 154×2 topics
  39. COVID-19 Impact4▲ 11×2 topics
  40. Big Data Analysis4▲ 84×2 topics

Which research topics does Nikola Vaptsarov Naval Academy publish most on?

By volume in 2022–2025: Maritime Transport Emissions and Efficiency, Maritime Navigation and Safety, Electric Power Systems and Control and Cruise Tourism Development and Management.

Maritime Transport Emiss…12Maritime Transport Emissions and Efficiency: 12 fractional worksMaritime Navigation and Safety: 9 fractional worksElectric Power Systems and Control: 5 fractional worksCruise Tourism Development and Management: 4 fractional worksEngineering Diagnostics and Reliability: 4 fractional worksTechnical Engine Diagnostics and Monitoring: 4 fractional worksMultilevel Inverters and Converters: 4 fractional worksMaritime Ports and Logistics: 4 fractional worksStonefly species taxonomy and ecology: 4 fractional worksNetwork Security and Intrusion Detection: 3 fractional works
Environmental EngineeringOcean EngineeringElectrical and Electronic EngineeringTransportation4 others

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

  1. 1 Maritime Transport Emissions and Efficiency Environmental Engineering 12 works
  2. 2 Maritime Navigation and Safety Ocean Engineering 9 works
  3. 3 Electric Power Systems and Control Electrical and Electronic Engineering 5 works
  4. 4 Cruise Tourism Development and Management Transportation 4 works
  5. 5 Engineering Diagnostics and Reliability Mechanics of Materials 4 works
  6. 6 Technical Engine Diagnostics and Monitoring Automotive Engineering 4 works
  7. 7 Multilevel Inverters and Converters Electrical and Electronic Engineering 4 works
  8. 8 Maritime Ports and Logistics Industrial and Manufacturing Engineering 4 works
  9. 9 Stonefly species taxonomy and ecology Ocean Engineering 4 works
  10. 10 Network Security and Intrusion Detection Computer Networks and Communications 3 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 available53.1%not open46.9%

World: 28% of research is openly available.

with international co-authors8.5%domestic only91.5%

World: 19% is written across borders.

How has Nikola Vaptsarov Naval Academy's research output changed?

Output in 2018–2022 was 283% higher 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 Varna

All research institutions in Varna

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.