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University · Piraeus · Greece

Hellenic Naval Academy

In research, Hellenic Naval Academy stands highest in Engineering (#5,092 of 9,532 worldwide) and Physical Sciences (#11,451 of 17,446 worldwide), over all time.

hna.grROR OpenAlex
World rank, 2022-now
#19,544
of 22,385 · #21,057 all time
Rank in Greece
#87
of 111
Research works
542
▼ 21% vs 2018-21
Citations
5.1k
9.3 per fractional work
Top-10% rate
11.3%
all institutions 10.0%
vs its own fields
0.98×
1.00× is exactly expected
Open access
31%
world 40%
International
33%
world 18%
Hellenic Naval Academy

What is Hellenic Naval Academy 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 #5,092 of 9,532 7.0%188
Physical SciencesDomain #11,451 of 17,446 5.2%451

Each strip is that field's whole ranked pool, with the notch where Hellenic 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does Hellenic Naval Academy work in?

In 2022-now, 65% of research at Hellenic Naval Academy is in Physical Sciences, 19% in Social Sciences. Its largest fields are Engineering (23%), Mathematics (13%), Medicine (10%). It does 1.6× the world's share of Physical Sciences.

Physical Sciences: 55 fractional works · 64.7% of its workEngineering: 19 fractional works · 22.6% of its workElectrical and Electronic Engineering: 5 fractional works · 5.5% of its workBiomedical Engineering: 3 fractional works · 3.3% of its workAerospace Engineering: 3 fractional works · 3.3% of its workOcean Engineering: 3 fractional works · 3.2% of its workMechanical Engineering: 2 fractional works · 2.1% of its workControl and Systems Engineering: 1 fractional works · 1.4% of its workAutomotive Engineering: 1 fractional works · 1.1% of its workComputational Mechanics: 1 fractional works · 0.9% of its workCivil and Structural Engineering: 1 fractional works · 0.8% of its workIndustrial and Manufacturing Engineering: 1 fractional works · 0.7% of its workMedia Technology: 0 fractional works · 0.3% of its workMathematics: 11 fractional works · 12.6% of its workApplied Mathematics: 4 fractional works · 4.9% of its workMathematical Physics: 3 fractional works · 3.4% of its workNumerical Analysis: 3 fractional works · 3.4% of its workStatistics and Probability: 0 fractional works · 0.6% of its workModeling and Simulation: 0 fractional works · 0.3% of its workComputer Science: 8 fractional works · 9.9% of its workArtificial Intelligence: 4 fractional works · 4.8% of its workInformation Systems: 2 fractional works · 2.2% of its workComputational Theory and Mathematics: 1 fractional works · 1.3% of its workComputer Vision and Pattern Recognition: 1 fractional works · 1.3% of its workComputer Networks and Communications: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPhysics and Astronomy: 7 fractional works · 8.2% of its workAtomic and Molecular Physics, and Optics: 4 fractional works · 4.3% of its workStatistical and Nonlinear Physics: 2 fractional works · 2.3% of its workAstronomy and Astrophysics: 1 fractional works · 1.3% of its workNuclear and High Energy Physics: 0 fractional works · 0.3% of its workEnvironmental Science: 4 fractional works · 4.8% of its workEnvironmental Engineering: 2 fractional works · 2.2% of its workEcology: 1 fractional works · 0.8% of its workGlobal and Planetary Change: 1 fractional works · 0.7% of its workManagement, Monitoring, Policy and Law: 0 fractional works · 0.5% of its workIndustrial and Manufacturing Engineering: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEarth and Planetary Sciences: 3 fractional works · 3.4% of its workAtmospheric Science: 1 fractional works · 1.5% of its workOceanography: 1 fractional works · 0.9% of its workGeophysics: 1 fractional works · 0.7% of its workSmaller subfields together: 0 fractional works · 0.3% of its workChemical Engineering: 1 fractional works · 1.4% of its workFluid Flow and Transfer Processes: 1 fractional works · 1.4% of its workChemistry: 1 fractional works · 0.9% of its workSpectroscopy: 1 fractional works · 0.7% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMaterials Science: 1 fractional works · 0.9% of its workMaterials Chemistry: 1 fractional works · 0.9% of its workSocial Sciences: 16 fractional works · 19.3% of its workSocial Sciences: 5 fractional works · 6.0% of its workSociology and Political Science: 2 fractional works · 1.8% of its workPolitical Science and International Relations: 1 fractional works · 0.8% of its workEducation: 1 fractional works · 0.8% of its workTransportation: 1 fractional works · 0.6% of its workCultural Studies: 0 fractional works · 0.6% of its workUrban Studies: 0 fractional works · 0.4% of its workSafety Research: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.7% of its workArts and Humanities: 3 fractional works · 3.8% of its workClassics: 1 fractional works · 1.2% of its workMusic: 1 fractional works · 1.2% of its workLiterature and Literary Theory: 0 fractional works · 0.6% of its workArcheology: 0 fractional works · 0.5% of its workConservation: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 3 fractional works · 3.3% of its workEconomics and Econometrics: 2 fractional works · 2.0% of its workFinance: 1 fractional works · 0.9% of its workGeneral Economics, Econometrics and Finance: 0 fractional works · 0.5% of its workBusiness, Management and Accounting: 2 fractional works · 2.4% of its workManagement Information Systems: 1 fractional works · 1.6% of its workStrategy and Management: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.4% of its workPsychology: 2 fractional works · 2.0% of its workDevelopmental and Educational Psychology: 1 fractional works · 0.8% of its workSocial Psychology: 0 fractional works · 0.4% of its workClinical Psychology: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.3% of its workDecision Sciences: 2 fractional works · 1.9% of its workManagement Science and Operations Research: 1 fractional works · 1.0% of its workStatistics, Probability and Uncertainty: 1 fractional works · 0.9% of its workHealth Sciences: 10 fractional works · 11.9% of its workMedicine: 8 fractional works · 10.0% of its workOrthopedics and Sports Medicine: 3 fractional works · 4.0% of its workComplementary and alternative medicine: 1 fractional works · 1.1% of its workCardiology and Cardiovascular Medicine: 1 fractional works · 0.9% of its workSurgery: 1 fractional works · 0.7% of its workPhysiology: 1 fractional works · 0.6% of its workPulmonary and Respiratory Medicine: 0 fractional works · 0.4% of its workPublic Health, Environmental and Occupational Health: 0 fractional works · 0.3% of its workPharmacology: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 1.7% of its workHealth Professions: 1 fractional works · 1.8% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 1 fractional works · 0.6% of its workOccupational Therapy: 0 fractional works · 0.6% of its workGeneral Health Professions: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNursing: 0 fractional works · 0.1% of its workLife Sciences: 3 fractional works · 4.1% of its workBiochemistry, Genetics and Molecular Biology: 3 fractional works · 3.1% of its workCell Biology: 1 fractional works · 1.3% of its workGenetics: 1 fractional works · 1.3% of its workMolecular Biology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workAgricultural and Biological Sciences: 1 fractional works · 0.8% of its workGeneral Agricultural and Biological Sciences: 0 fractional works · 0.5% of its workFood Science: 0 fractional works · 0.3% of its workNeuroscience: 0 fractional works · 0.1% of its workImmunology and Microbiology: 0 fractional works · 0.1% of its workALL ITS WORKHellenic NavalAcademy84fractional works, 2022-now
Life Sciences4%Physical Sciences65%Health Sciences12%Social Sciences19%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 22 fields, with their numbers
    1. Engineering1922.6%
    2. Mathematics1112.6%
    3. Computer Science89.9%
    4. Physics and Astronomy78.2%
    5. Environmental Science44.8%
    6. Earth and Planetary Sciences33.4%
    7. Chemical Engineering11.4%
    8. Chemistry10.9%
    9. Materials Science10.9%
    1. Social Sciences56.0%
    2. Arts and Humanities33.8%
    3. Economics, Econometrics and Finance33.3%
    4. Business, Management and Accounting22.4%
    5. Psychology22.0%
    6. Decision Sciences21.9%
    1. Medicine810.0%
    2. Health Professions11.8%
    3. Nursing00.1%
    1. Biochemistry, Genetics and Molecular Biology33.1%
    2. Agricultural and Biological Sciences10.8%
    3. Neuroscience00.1%
    4. Immunology and Microbiology00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 0.17× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.57× its world share, 3 worksBiochemistry, Geneti…Immunology and Microbiology: 0.08× its world share, 0 worksImmunology and Micro…Neuroscience: 0.08× its world share, 0 worksNeuroscienceChemical Engineering: 4.04× its world share, 1 worksChemical EngineeringChemistry: 0.59× its world share, 1 worksChemistryComputer Science: 1.27× its world share, 8 worksComputer ScienceEarth and Planetary Sciences: 2.16× its world share, 3 worksEarth and Planetary …Engineering: 1.51× its world share, 19 worksEngineeringEnvironmental Science: 0.96× its world share, 4 worksEnvironmental ScienceMaterials Science: 0.26× its world share, 1 worksMaterials ScienceMathematics: 10.68× its world share, 11 worksMathematicsPhysics and Astronomy: 3.69× its world share, 7 worksPhysics and AstronomyHealth Professions: 0.66× its world share, 2 worksHealth ProfessionsMedicine: 0.52× its world share, 8 worksMedicineNursing: 0.27× its world share, 0 worksNursingArts and Humanities: 1.32× its world share, 3 worksArts and HumanitiesBusiness, Management and Accounting: 0.73× its world share, 2 worksBusiness, Management…Decision Sciences: 1.96× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 1.55× its world share, 3 worksEconomics, Econometr…Psychology: 0.64× its world share, 2 worksPsychologySocial Sciences: 0.47× its world share, 5 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Mathematics, 10.7×. Every wedge is a field page.

All 22 fields, with their numbers
  1. Mathematics10.68×11 works
  2. Chemical Engineering4.04×1 works
  3. Physics and Astronomy3.69×7 works
  4. Earth and Planetary Sciences2.16×3 works
  5. Decision Sciences1.96×2 works
  6. Economics, Econometrics and Finance1.55×3 works
  7. Engineering1.51×19 works
  8. Arts and Humanities1.32×3 works
  9. Computer Science1.27×8 works
  10. Environmental Science0.96×4 works
  11. Business, Management and Accounting0.73×2 works
  12. Health Professions0.66×2 works
  13. Psychology0.64×2 works
  14. Chemistry0.59×1 works
  15. Biochemistry, Genetics and Molecular Biology0.57×3 works
  16. Medicine0.52×8 works
  17. Social Sciences0.47×5 works
  18. Nursing0.27×0 works
  19. Materials Science0.26×1 works
  20. Agricultural and Biological Sciences0.17×1 works
  21. Immunology and Microbiology0.08×0 works
  22. Neuroscience0.08×0 works

Who are the top researchers at Hellenic Naval Academy?

Ranked on the quality score, Gerasimos V. Grivas, Nikolaos E. Melanitis and Elias Ar. Yfantis lead among researchers whose main affiliation is Hellenic Naval Academy.

  1. 1 Gerasimos V. Grivas Greece · #642,065 worldwide 620 citations · 61 works
  2. 2 Nikolaos E. Melanitis Greece · #1,525,002 worldwide 688 citations · 27 works
  3. 3 Elias Ar. Yfantis Greece · #3,022,355 worldwide 806 citations · 34 works
  4. 4 Vasileios N. Stavrou Greece · #4,232,691 worldwide 387 citations · 40 works
  5. 5 George N. Galanis Greece · #4,318,092 worldwide 2.6k citations · 159 works
  6. 6 Costas J. Papachristou Greece · #4,361,710 worldwide 330 citations · 79 works
  7. 7 Evangelia A. Karagianni Greece · #4,520,293 worldwide 401 citations · 24 works
  8. 8 Nikolaos H. Solomos Greece · #5,079,950 worldwide 107 citations · 35 works
  9. 9 George P. Veropoulos Greece · #5,197,434 worldwide 56 citations · 18 works
  10. 10 Nikolaos E. Mastorakis Greece · #5,498,171 worldwide 393 citations · 52 works
All ranked researchers at Hellenic Naval Academy

What are the most cited papers from Hellenic Naval Academy?

The most cited paper from Hellenic Naval Academy is "Improvements in wind speed forecasts for wind power prediction purposes using Kalman filtering" (P. Louka, George N. Galanis, Nils Siebert et al., 2008), with 408 citations. Next come "Average Capacity of Optical Wireless Communication Systems Over Atmospheric Turbulence Channels" (249) and "Solar and photovoltaic forecasting through post‐processing of the Global Environmental Multiscale numerical weather prediction model" (246).

Most cited papers
#PaperReleasedCitations
1 Improvements in wind speed forecasts for wind power prediction purposes using Kalman filtering P. Louka, George N. Galanis, Nils Siebert et al. · Journal of Wind Engineering and Industrial Aerodynamics 10 Jun 2008 408
2 Average Capacity of Optical Wireless Communication Systems Over Atmospheric Turbulence Channels Hector E. Nistazakis, Evangelia A. Karagianni, Andreas D. Tsigopoulos et al. · Journal of Lightwave Technology Apr 2009 249
3 Solar and photovoltaic forecasting through post‐processing of the Global Environmental Multiscale numerical weather prediction model Sophie Pelland, George N. Galanis, George B. Kallos · Progress in Photovoltaics Research and Applications 22 Nov 2011 246
4 Optimal Demand-Side Management and Power Generation Scheduling in an All-Electric Ship Fotios D. Kanellos, George J. Tsekouras, Nikos D. Hatziargyriou · IEEE Transactions on Sustainable Energy 5 Aug 2014 193
5 Scurvy: Past, present and future Emmanouil Magiorkinis, Apostolos I. Beloukas, Aristidis Diamantis · European Journal of Internal Medicine 17 Nov 2010 163
All 60 most cited papers, with filters and sorting

Which keywords describe research at Hellenic Naval Academy?

By fractional works in 2022-now, weighted toward what it does more of than the world: Resistance Training, High-Intensity Interval Training, Emissions, Performance Analysis, Training Load, Machine Learning, Geometric Algebra and Quaternionic Analysis.

▲ 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-now 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. Machine Learning5▲ 1.87×22 topics
  2. Deep Learning4▲ 1.43×15 topics
  3. Resistance Training4▲ 50×2 topics
  4. High-Intensity Interval Training4▲ 41×2 topics
  5. Climate Change3▲ 1.23×16 topics
  6. Emissions3▲ 17×3 topics
  7. Performance Analysis3▲ 16×1 topic
  8. Training Load3▲ 52×1 topic
  9. Artificial Neural Networks3▲ 6.6×4 topics
  10. Geometric Algebra2▲ 222×1 topic
  11. Quaternionic Analysis2▲ 222×1 topic
  12. Neural Networks2▲ 1.79×5 topics
  13. Forecasting2▲ 14×4 topics
  14. Differential Equations2▲ 104×1 topic
  15. Numerical Integration2▲ 84×1 topic
  16. Time Series Analysis2▲ 13×2 topics
  17. Maritime Transportation2▲ 38×2 topics
  18. Nonlinear Equations2▲ 15×4 topics
  19. Collision Avoidance2▲ 10×4 topics
  20. Probabilistic Forecasting2▲ 9.8×2 topics
  21. Generalized Functions2▲ 307×1 topic
  22. Infinite and Infinitesimal Numbers2▲ 307×1 topic
  23. Exercise1▲ 14×2 topics
  24. Fuel Consumption1▲ 23×2 topics
  25. Path Planning1▲ 13×2 topics
  26. Water Resources1▲ 7.0×3 topics
  27. Chemical Kinetics1▲ 16×2 topics
  28. Combustion1▲ 23×1 topic
  29. Data Assimilation1▲ 8.4×3 topics
  30. Environmental Sustainability1▲ 9.0×3 topics
  31. Evolutionary Algorithms1▲ 13×3 topics
  32. Human Factors1▲ 17×1 topic
  33. Hydrology1▲ 11×3 topics
  34. Regression1▲ 43×2 topics
  35. Soot Formation1▲ 31×1 topic
  36. Unmanned Surface Vehicles1▲ 44×1 topic
  37. Cost-effectiveness Analysis1▲ 17×1 topic
  38. Health Utility Measures1▲ 17×1 topic
  39. Biodiesel1▲ 14×1 topic
  40. Protein1▲ 10.0×1 topic

Which research topics does Hellenic Naval Academy publish most on?

By volume in 2022-now: Sports Performance and Training, Algebraic and Geometric Analysis, Numerical methods for differential equations and Mathematical and Theoretical Analysis.

Sports Performance and Training: 3 fractional worksAlgebraic and Geometric Analysis: 2 fractional worksNumerical methods for di…2Numerical methods for differential equations: 2 fractional worksMathematical and Theoret…2Mathematical and Theoretical Analysis: 2 fractional worksAdvanced Combustion Engine Technologies: 1 fractional worksMaritime Navigation and Safety: 1 fractional worksHealth Systems, Economic…1Health Systems, Economic Evaluations, Quality of Life: 1 fractional worksBiodiesel Production and Applications: 1 fractional worksMuscle metabolism and nutrition: 1 fractional worksNeural Networks and Applications: 1 fractional works
Orthopedics and Sports MedicineApplied MathematicsNumerical AnalysisMathematical Physics6 others

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

  1. 1 Sports Performance and Training Orthopedics and Sports Medicine 3 works
  2. 2 Algebraic and Geometric Analysis Applied Mathematics 2 works
  3. 3 Numerical methods for differential equations Numerical Analysis 2 works
  4. 4 Mathematical and Theoretical Analysis Mathematical Physics 2 works
  5. 5 Advanced Combustion Engine Technologies Fluid Flow and Transfer Processes 1 works
  6. 6 Maritime Navigation and Safety Ocean Engineering 1 works
  7. 7 Health Systems, Economic Evaluations, Quality of Life Economics and Econometrics 1 works
  8. 8 Biodiesel Production and Applications Biomedical Engineering 1 works
  9. 9 Muscle metabolism and nutrition Cell Biology 1 works
  10. 10 Neural Networks and Applications Artificial Intelligence 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 available30.9%not open69.1%

World: 40% of research is openly available.

with international co-authors32.9%domestic only67.1%

World: 18% is written across borders.

How has Hellenic Naval Academy's research output changed?

Output in 2022-2025 was 21% lower than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Hellenic Naval Academy as a percentage of every work published that year, 0.00024% in 2024.

still counting0.0010%0.0020%Hellenic Naval Academy0.00024% in 202519801990200020102020

Fractional works of Hellenic Naval Academy over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting10%20%all institutions10.0% in 2023Hellenic Naval Academy5.3% in 202320102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 9.4% in 2020.

Other research institutions in Piraeus

All research institutions in Piraeus

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Hellenic Naval Academy on Science Explorer

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