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Government institution · Rio de Janeiro · Brazil

National Nuclear Energy Commission

In research, National Nuclear Energy Commission stands highest in Materials Science (#1,961 of 2,276 worldwide), Engineering (#5,274 of 5,901 worldwide) and Physical Sciences (#9,760 of 10,670 worldwide), 2022-now.

cnen.gov.brROR OpenAlex
World rank, 2022-now
#13,006
of 22,385 · #23,564 all time
Rank in Brazil
#497
of 684
Research works
3.1k
▼ 16% vs 2018-21
Citations
37k
11.8 per fractional work
Top-10% rate
3.8%
all institutions 10.0%
vs its own fields
0.78×
1.00× is exactly expected
Open access
48%
world 40%
International
15%
world 18%
National Nuclear Energy Commission

What is National Nuclear Energy Commission known for in research?

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

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Materials ScienceField #1,961 of 2,276 2.9%70 #3155
EngineeringField #5,274 of 5,901 2.3%107 #7148
Physical SciencesDomain #9,760 of 10,670 2.9%285 #16372

Each strip is that field's whole ranked pool, with the notch where National Nuclear Energy Commission 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 of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022-now. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Materials Science#3,155 #1,961
  2. Engineering#7,148 #5,274
  3. Physical Sciences#16,372 #9,760
all time2022-now, better2022-now, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

Which fields of science does National Nuclear Energy Commission work in?

In 2022-now, 70% of research at National Nuclear Energy Commission is in Physical Sciences, 14% in Health Sciences. Its largest fields are Engineering (26%), Materials Science (17%), Medicine (10%). It does 1.8× the world's share of Physical Sciences.

Physical Sciences: 312 fractional works · 70.5% of its workEngineering: 114 fractional works · 25.9% of its workElectrical and Electronic Engineering: 30 fractional works · 6.7% of its workBiomedical Engineering: 19 fractional works · 4.3% of its workAerospace Engineering: 16 fractional works · 3.6% of its workMechanical Engineering: 14 fractional works · 3.1% of its workMechanics of Materials: 10 fractional works · 2.4% of its workSafety, Risk, Reliability and Quality: 6 fractional works · 1.5% of its workComputational Mechanics: 5 fractional works · 1.2% of its workCivil and Structural Engineering: 3 fractional works · 0.7% of its workBuilding and Construction: 3 fractional works · 0.6% of its workAutomotive Engineering: 3 fractional works · 0.6% of its workOcean Engineering: 2 fractional works · 0.4% of its workMedia Technology: 2 fractional works · 0.4% of its workControl and Systems Engineering: 1 fractional works · 0.2% of its workMaterials Science: 77 fractional works · 17.4% of its workMaterials Chemistry: 52 fractional works · 11.8% of its workBiomaterials: 7 fractional works · 1.6% of its workElectronic, Optical and Magnetic Materials: 7 fractional works · 1.5% of its workPolymers and Plastics: 6 fractional works · 1.4% of its workCeramics and Composites: 3 fractional works · 0.7% of its workMetals and Alloys: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.1% of its workPhysics and Astronomy: 38 fractional works · 8.5% of its workRadiation: 20 fractional works · 4.5% of its workAtomic and Molecular Physics, and Optics: 9 fractional works · 2.0% of its workNuclear and High Energy Physics: 5 fractional works · 1.1% of its workStatistical and Nonlinear Physics: 2 fractional works · 0.4% of its workAcoustics and Ultrasonics: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.2% of its workEnvironmental Science: 37 fractional works · 8.3% of its workPollution: 8 fractional works · 1.8% of its workGlobal and Planetary Change: 6 fractional works · 1.5% of its workWater Science and Technology: 6 fractional works · 1.3% of its workHealth, Toxicology and Mutagenesis: 5 fractional works · 1.0% of its workIndustrial and Manufacturing Engineering: 3 fractional works · 0.7% of its workManagement, Monitoring, Policy and Law: 3 fractional works · 0.6% of its workEnvironmental Engineering: 2 fractional works · 0.5% of its workEnvironmental Chemistry: 2 fractional works · 0.4% of its workEcology: 2 fractional works · 0.4% of its workChemistry: 13 fractional works · 3.0% of its workAnalytical Chemistry: 5 fractional works · 1.1% of its workInorganic Chemistry: 4 fractional works · 0.8% of its workOrganic Chemistry: 2 fractional works · 0.6% of its workElectrochemistry: 1 fractional works · 0.3% of its workSpectroscopy: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.0% of its workEnergy: 12 fractional works · 2.7% of its workRenewable Energy, Sustainability and the Environment: 11 fractional works · 2.5% of its workSmaller subfields together: 1 fractional works · 0.2% of its workComputer Science: 8 fractional works · 1.9% of its workInformation Systems: 3 fractional works · 0.6% of its workComputer Vision and Pattern Recognition: 2 fractional works · 0.4% of its workArtificial Intelligence: 1 fractional works · 0.3% of its workSmaller subfields together: 3 fractional works · 0.6% of its workEarth and Planetary Sciences: 7 fractional works · 1.5% of its workAtmospheric Science: 2 fractional works · 0.4% of its workGeochemistry and Petrology: 2 fractional works · 0.3% of its workEarth-Surface Processes: 1 fractional works · 0.3% of its workGeophysics: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.3% of its workChemical Engineering: 5 fractional works · 1.1% of its workCatalysis: 3 fractional works · 0.8% of its workSmaller subfields together: 1 fractional works · 0.3% of its workMathematics: 1 fractional works · 0.2% of its workHealth Sciences: 61 fractional works · 13.8% of its workMedicine: 43 fractional works · 9.8% of its workRadiology, Nuclear Medicine and Imaging: 14 fractional works · 3.1% of its workPulmonary and Respiratory Medicine: 9 fractional works · 2.0% of its workPublic Health, Environmental and Occupational Health: 3 fractional works · 0.8% of its workSurgery: 2 fractional works · 0.5% of its workOncology: 2 fractional works · 0.5% of its workInfectious Diseases: 2 fractional works · 0.4% of its workDermatology: 2 fractional works · 0.3% of its workOphthalmology: 1 fractional works · 0.3% of its workEpidemiology: 1 fractional works · 0.3% of its workPhysiology: 1 fractional works · 0.2% of its workSmaller subfields together: 6 fractional works · 1.3% of its workHealth Professions: 10 fractional works · 2.2% of its workRadiological and Ultrasound Technology: 6 fractional works · 1.4% of its workGeneral Health Professions: 1 fractional works · 0.3% of its workSmaller subfields together: 2 fractional works · 0.5% of its workDentistry: 6 fractional works · 1.4% of its workOrthodontics: 3 fractional works · 0.7% of its workOral Surgery: 2 fractional works · 0.4% of its workPeriodontics: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.0% of its workNursing: 2 fractional works · 0.4% of its workNutrition and Dietetics: 2 fractional works · 0.4% of its workVeterinary: 0 fractional works · 0.0% of its workLife Sciences: 38 fractional works · 8.6% of its workAgricultural and Biological Sciences: 18 fractional works · 4.0% of its workFood Science: 8 fractional works · 1.9% of its workPlant Science: 5 fractional works · 1.0% of its workInsect Science: 2 fractional works · 0.4% of its workEcology, Evolution, Behavior and Systematics: 1 fractional works · 0.3% of its workSmaller subfields together: 2 fractional works · 0.4% of its workBiochemistry, Genetics and Molecular Biology: 15 fractional works · 3.4% of its workMolecular Biology: 7 fractional works · 1.5% of its workBiophysics: 2 fractional works · 0.5% of its workCancer Research: 2 fractional works · 0.4% of its workBiotechnology: 1 fractional works · 0.2% of its workMolecular Medicine: 1 fractional works · 0.2% of its workGenetics: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.3% of its workImmunology and Microbiology: 3 fractional works · 0.7% of its workImmunology: 2 fractional works · 0.4% of its workParasitology: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.0% of its workPharmacology, Toxicology and Pharmaceutics: 1 fractional works · 0.3% of its workNeuroscience: 1 fractional works · 0.2% of its workCellular and Molecular Neuroscience: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.0% of its workSocial Sciences: 31 fractional works · 7.1% of its workSocial Sciences: 13 fractional works · 3.0% of its workSociology and Political Science: 4 fractional works · 1.0% of its workEducation: 3 fractional works · 0.8% of its workPolitical Science and International Relations: 2 fractional works · 0.5% of its workSafety Research: 1 fractional works · 0.2% of its workUrban Studies: 1 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.3% of its workDecision Sciences: 8 fractional works · 1.8% of its workStatistics, Probability and Uncertainty: 5 fractional works · 1.1% of its workInformation Systems and Management: 2 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.2% of its workArts and Humanities: 5 fractional works · 1.1% of its workArcheology: 3 fractional works · 0.6% of its workConservation: 2 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.1% of its workBusiness, Management and Accounting: 3 fractional works · 0.6% of its workEconomics, Econometrics and Finance: 2 fractional works · 0.4% of its workEconomics and Econometrics: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.0% of its workPsychology: 1 fractional works · 0.2% of its workALL ITS WORKNational NuclearEnergy Commission442fractional works, 2022-now
Life Sciences9%Physical Sciences70%Health Sciences14%Social Sciences7%

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 26 fields, with their numbers
    1. Engineering11425.9%
    2. Materials Science7717.4%
    3. Physics and Astronomy388.5%
    4. Environmental Science378.3%
    5. Chemistry133.0%
    6. Energy122.7%
    7. Computer Science81.9%
    8. Earth and Planetary Sciences71.5%
    9. Chemical Engineering51.1%
    10. Mathematics10.2%
    1. Medicine439.8%
    2. Health Professions102.2%
    3. Dentistry61.4%
    4. Nursing20.4%
    5. Veterinary00.0%
    1. Agricultural and Biological Sciences184.0%
    2. Biochemistry, Genetics and Molecular Biology153.4%
    3. Immunology and Microbiology30.7%
    4. Pharmacology, Toxicology and Pharmaceutics10.3%
    5. Neuroscience10.2%
    1. Social Sciences133.0%
    2. Decision Sciences81.8%
    3. Arts and Humanities51.1%
    4. Business, Management and Accounting30.6%
    5. Economics, Econometrics and Finance20.4%
    6. Psychology10.2%
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: 0.84× its world share, 18 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.64× its world share, 15 worksBiochemistry, Geneti…Immunology and Microbiology: 0.66× its world share, 3 worksImmunology and Micro…Neuroscience: 0.14× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.89× its world share, 1 worksPharmacology, Toxico…Chemical Engineering: 3.18× its world share, 5 worksChemical EngineeringChemistry: 1.93× its world share, 13 worksChemistryComputer Science: 0.24× its world share, 8 worksComputer ScienceEarth and Planetary Sciences: 0.99× its world share, 7 worksEarth and Planetary …Energy: 2.94× its world share, 12 worksEnergyEngineering: 1.72× its world share, 114 worksEngineeringEnvironmental Science: 1.67× its world share, 37 worksEnvironmental ScienceMaterials Science: 4.98× its world share, 77 worksMaterials ScienceMathematics: 0.14× its world share, 1 worksMathematicsPhysics and Astronomy: 3.82× its world share, 38 worksPhysics and AstronomyDentistry: 2.79× its world share, 6 worksDentistryHealth Professions: 0.83× its world share, 10 worksHealth ProfessionsMedicine: 0.51× its world share, 43 worksMedicineNursing: 0.76× its world share, 2 worksNursingVeterinary: 0.37× its world share, 0 worksVeterinaryArts and Humanities: 0.39× its world share, 5 worksArts and HumanitiesBusiness, Management and Accounting: 0.18× its world share, 3 worksBusiness, Management…Decision Sciences: 1.87× its world share, 8 worksDecision SciencesEconomics, Econometrics and Finance: 0.17× its world share, 2 worksEconomics, Econometr…Psychology: 0.06× its world share, 1 worksPsychologySocial Sciences: 0.24× its world share, 13 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Materials Science, 5.0×. Every wedge is a field page.

All 26 fields, with their numbers
  1. Materials Science4.98×77 works
  2. Physics and Astronomy3.82×38 works
  3. Chemical Engineering3.18×5 works
  4. Energy2.94×12 works
  5. Dentistry2.79×6 works
  6. Chemistry1.93×13 works
  7. Decision Sciences1.87×8 works
  8. Engineering1.72×114 works
  9. Environmental Science1.67×37 works
  10. Earth and Planetary Sciences0.99×7 works
  11. Pharmacology, Toxicology and Pharmaceutics0.89×1 works
  12. Agricultural and Biological Sciences0.84×18 works
  13. Health Professions0.83×10 works
  14. Nursing0.76×2 works
  15. Immunology and Microbiology0.66×3 works
  16. Biochemistry, Genetics and Molecular Biology0.64×15 works
  17. Medicine0.51×43 works
  18. Arts and Humanities0.39×5 works
  19. Veterinary0.37×0 works
  20. Computer Science0.24×8 works
  21. Social Sciences0.24×13 works
  22. Business, Management and Accounting0.18×3 works
  23. Economics, Econometrics and Finance0.17×2 works
  24. Neuroscience0.14×1 works
  25. Mathematics0.14×1 works
  26. Psychology0.06×1 works

Who are the top researchers at National Nuclear Energy Commission?

Ranked on the quality score, Suzimara Rovani, V.F. Borges and Kayo Okazaki lead among researchers whose main affiliation is National Nuclear Energy Commission.

  1. 1 Suzimara Rovani Brazil · #2,541,180 worldwide 1.2k citations · 33 works
  2. 2 V.F. Borges Brazil · #4,298,931 worldwide 582 citations · 17 works
  3. 3 Kayo Okazaki Brazil · #4,740,442 worldwide 1.7k citations · 55 works
  4. 4 Guilherme S. Buzzo Brazil · #5,164,636 worldwide 797 citations · 24 works
  5. 5 Fernanda Andrade Tigre da Costa Brazil · #5,276,229 worldwide 129 citations · 19 works
  6. 6 Caroline Santos Alves de Lima Brazil · #5,289,382 worldwide 278 citations · 31 works
  7. 7 Alessandro Delle Site Brazil · #5,325,012 worldwide 1.2k citations · 24 works
  8. 8 Joyce R. Marques Brazil · #5,517,250 worldwide 132 citations · 22 works
  9. 9 M.L.G. Andrade Brazil · #5,640,036 worldwide 111 citations · 17 works
  10. 10 I.M. Moitinho Amaral Medeiros Brazil · #5,642,221 worldwide 43 citations · 18 works
All ranked researchers at National Nuclear Energy Commission

What are the most cited papers from National Nuclear Energy Commission?

The most cited paper from National Nuclear Energy Commission is "Amazonia as a carbon source linked to deforestation and climate change" (Luciana V. Gatti, Luana S. Basso, John Bharat Miller et al., 2021), with 1,087 citations. Next come "Type I and Type II Photosensitized Oxidation Reactions: Guidelines and Mechanistic Pathways" (921) and "21st Century drought-related fires counteract the decline of Amazon deforestation carbon emissions" (920).

Most cited papers
#PaperReleasedCitations
1 Amazonia as a carbon source linked to deforestation and climate change Luciana V. Gatti, Luana S. Basso, John Bharat Miller et al. · Nature Open access 14 Jul 2021 1,087
2 Type I and Type II Photosensitized Oxidation Reactions: Guidelines and Mechanistic Pathways Maurı́cio S. Baptista, Jean Cadet, Paolo Di Mascio et al. · Photochemistry and Photobiology Open access 13 Jan 2017 921
3 21st Century drought-related fires counteract the decline of Amazon deforestation carbon emissions Luiz E. O. C. Aragão et al. · Nature Communications Open access Feb 2018 920
4 Corrosion characterization of titanium alloys by electrochemical techniques Sérgio Luiz de Assis, Stephan Wolynec, Isolda Costa · Electrochimica Acta 26 Aug 2005 809
5 In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts Daniel Malko, Anthony R. Kucernak, Thiago Lopes · Nature Communications Open access 31 Oct 2016 572
All 60 most cited papers, with filters and sorting

Which keywords describe research at National Nuclear Energy Commission?

By fractional works in 2022-now, weighted toward what it does more of than the world: Raman Spectroscopy, Nanoparticles, Environmental Impact, Toxicity, Thermal Properties, Nanomaterials, Oxidation Behavior and Microstructural Characterization.

▲ 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. Environmental Impact25▲ 3.3×26 topics
  2. Nanoparticles24▲ 4.2×28 topics
  3. Nanomaterials18▲ 4.0×12 topics
  4. Raman Spectroscopy18▲ 22×6 topics
  5. Biomedical Applications17▲ 3.2×26 topics
  6. Toxicity15▲ 8.0×12 topics
  7. Thermal Properties15▲ 27×4 topics
  8. Nanocomposites13▲ 3.8×15 topics
  9. Oxidation Behavior12▲ 45×2 topics
  10. Microstructural Characterization12▲ 132×1 topic
  11. Nuclear Graphite12▲ 132×1 topic
  12. Health Effects12▲ 4.4×13 topics
  13. Crystal Growth11▲ 8.9×8 topics
  14. Catalysis10▲ 3.5×18 topics
  15. Food Safety10▲ 7.8×6 topics
  16. Antioxidant Activity9▲ 3.4×11 topics
  17. Gamma Irradiation9▲ 103×2 topics
  18. Water Splitting9▲ 5.3×4 topics
  19. Antimicrobial8▲ 6.8×7 topics
  20. Ionizing Radiation8▲ 28×2 topics
  21. Data Analysis8▲ 7.2×3 topics
  22. Radionuclides8▲ 48×2 topics
  23. Consumer Acceptance8▲ 29×3 topics
  24. Tomography8▲ 9.7×5 topics
  25. Molten Salt7▲ 53×1 topic
  26. Nuclear Reactor7▲ 53×1 topic
  27. Finite Element Analysis7▲ 7.2×4 topics
  28. Clinical Applications7▲ 25×2 topics
  29. Gold Nanoparticles7▲ 19×3 topics
  30. Food Irradiation7▲ 279×1 topic
  31. Irradiation Effects7▲ 279×1 topic
  32. Inorganic Scintillators7▲ 47×1 topic
  33. Radiation Detection7▲ 35×2 topics
  34. Scintillation Detectors7▲ 47×1 topic
  35. Oxidation Resistance6▲ 14×3 topics
  36. Hydrogen Embrittlement6▲ 17×2 topics
  37. Nuclear Fuel6▲ 89×1 topic
  38. Radiation Protection6▲ 89×1 topic
  39. Small-Angle Scattering6▲ 27×2 topics
  40. Neutron Activation Analysis6▲ 43×1 topic

Which research topics does National Nuclear Energy Commission publish most on?

By volume in 2022-now: Graphite, nuclear technology, radiation studies, Nuclear reactor physics and engineering, Radiation Effects and Dosimetry and Radiation Detection and Scintillator Technologies.

Graphite, nuclear techno…12Graphite, nuclear technology, radiation studies: 12 fractional worksNuclear reactor physics …7Nuclear reactor physics and engineering: 7 fractional worksRadiation Effects and Do…7Radiation Effects and Dosimetry: 7 fractional worksRadiation Detection and …7Radiation Detection and Scintillator Technologies: 7 fractional worksNuclear and radioactivity studies: 6 fractional worksNuclear Physics and Applications: 6 fractional worksRadioactivity and Radon …6Radioactivity and Radon Measurements: 6 fractional worksNuclear Materials and Pr…5Nuclear Materials and Properties: 5 fractional worksRisk and Safety Analysis4Risk and Safety Analysis: 4 fractional worksElectrocatalysts for Ene…4Electrocatalysts for Energy Conversion: 4 fractional works
Materials ChemistryAerospace EngineeringFood ScienceRadiation4 others

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

  1. 1 Graphite, nuclear technology, radiation studies Materials Chemistry 12 works
  2. 2 Nuclear reactor physics and engineering Aerospace Engineering 7 works
  3. 3 Radiation Effects and Dosimetry Food Science 7 works
  4. 4 Radiation Detection and Scintillator Technologies Radiation 7 works
  5. 5 Nuclear and radioactivity studies Safety, Risk, Reliability and Quality 6 works
  6. 6 Nuclear Physics and Applications Radiation 6 works
  7. 7 Radioactivity and Radon Measurements Radiological and Ultrasound Technology 6 works
  8. 8 Nuclear Materials and Properties Materials Chemistry 5 works
  9. 9 Risk and Safety Analysis Statistics, Probability and Uncertainty 4 works
  10. 10 Electrocatalysts for Energy Conversion Renewable Energy, Sustainability and the Environment 4 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 available48.3%not open51.7%

World: 40% of research is openly available.

with international co-authors14.7%domestic only85.3%

World: 18% is written across borders.

How has National Nuclear Energy Commission's research output changed?

Output in 2022-2025 was 16% 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 National Nuclear Energy Commission as a percentage of every work published that year, 0.0015% in 2024.

still counting0.0020%0.0040%0.0060%National Nuclear Energy Commission0.0015% in 202519801990200020102020

Fractional works of National Nuclear Energy Commission 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 counting5%10%15%all institutions10.0% in 2025National Nuclear Energy Commission3.9% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 9.4% in 2004.

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National Nuclear Energy Commission on Science Explorer

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