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Research in Tehran

Science Explorer records 6 research institutions in Tehran. The highest-ranked on research quality in 2022-now are Nuclear Science and Technology Research Institute.

Research institutions
6
1 of them ranked worldwide
Research works
5.1k
▼ 65% vs 2018-21
Citations
41k
8.0 per fractional work, all time
Top-10% rate, 2022-now
13.3%
all institutions 10.0%
Active span
1969-2026
58 years on the record
Tehran

A city carries no overall standing here. The quality score is built for institutions and countries, the units its floors and field normalisation were designed around. An empty rank on this page is a statement about the measure, not about the place.

Which research institutions are in Tehran?

#InstitutionWorksAgainst the largest hereWorld rank
1Nuclear Science and Technology Research InstituteResearch facility 1,658 #15,969
2Institute for Humanities and Cultural StudiesResearch facility 1,647 #8,979 all time
3Iranian Research Institute for Information Science and TechnologyResearch facility 335 #19,260 all time
4Iran National Standards OrganizationGovernment institution 42 not ranked
5National Institute for Medical Research DevelopmentResearch facility 25 not ranked
6Mehr Alborz UniversityUniversity 16 not ranked

By fractional works over the whole record; world rank on research quality in 2022-now. Bars are scaled to the largest institution in this city, not to anything off the page.

How concentrated the city is

The same institutions as shares of everything the list accounts for. A city that is one university and a city that is twelve read alike as a table and not at all alike here.

Nuclear Science and Technology Research Institute: 44.5%Institute for Humanities and Cultural Studies: 44.2%Iranian Research Institute for Information Science and Technology: 9.0%Iran National Standards Organization: 1.1%2 others listed: 1.1%45%largest
Nuclear Science and Technology Research Institute1,658 · 44.5%Institute for Humanities and Cultural Studies1,647 · 44.2%Iranian Research Institute for Information Science and Technology335 · 9.0%Iran National Standards Organization42 · 1.1%2 others listed41 · 1.1%

Shares of the rows listed above, not of the whole node.

Which fields of science does Tehran work in?

In 2022-now, 51% of research in Tehran is in Physical Sciences, 24% in Health Sciences. Its largest fields are Medicine (20%), Engineering (20%), Materials Science (9%). It does 1.3× the world's share of Physical Sciences.

Physical Sciences: 380 fractional works · 50.6% of its workEngineering: 147 fractional works · 19.6% of its workAerospace Engineering: 32 fractional works · 4.3% of its workBiomedical Engineering: 31 fractional works · 4.1% of its workElectrical and Electronic Engineering: 26 fractional works · 3.5% of its workMechanical Engineering: 20 fractional works · 2.6% of its workComputational Mechanics: 11 fractional works · 1.5% of its workMechanics of Materials: 8 fractional works · 1.1% of its workSafety, Risk, Reliability and Quality: 6 fractional works · 0.8% of its workControl and Systems Engineering: 4 fractional works · 0.6% of its workOcean Engineering: 3 fractional works · 0.4% of its workCivil and Structural Engineering: 2 fractional works · 0.3% of its workSmaller subfields together: 3 fractional works · 0.4% of its workMaterials Science: 69 fractional works · 9.1% of its workMaterials Chemistry: 48 fractional works · 6.4% of its workPolymers and Plastics: 5 fractional works · 0.7% of its workBiomaterials: 5 fractional works · 0.7% of its workElectronic, Optical and Magnetic Materials: 5 fractional works · 0.7% of its workSurfaces, Coatings and Films: 2 fractional works · 0.3% of its workCeramics and Composites: 2 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPhysics and Astronomy: 55 fractional works · 7.3% of its workRadiation: 29 fractional works · 3.8% of its workAtomic and Molecular Physics, and Optics: 11 fractional works · 1.5% of its workNuclear and High Energy Physics: 10 fractional works · 1.3% of its workStatistical and Nonlinear Physics: 2 fractional works · 0.3% of its workAstronomy and Astrophysics: 2 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.2% of its workEnvironmental Science: 31 fractional works · 4.2% of its workWater Science and Technology: 9 fractional works · 1.2% of its workIndustrial and Manufacturing Engineering: 7 fractional works · 0.9% of its workHealth, Toxicology and Mutagenesis: 5 fractional works · 0.6% of its workPollution: 4 fractional works · 0.5% of its workGlobal and Planetary Change: 3 fractional works · 0.4% of its workEcology: 2 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.3% of its workChemistry: 31 fractional works · 4.2% of its workInorganic Chemistry: 13 fractional works · 1.8% of its workOrganic Chemistry: 7 fractional works · 1.0% of its workAnalytical Chemistry: 7 fractional works · 0.9% of its workSpectroscopy: 2 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.1% of its workComputer Science: 28 fractional works · 3.7% of its workArtificial Intelligence: 16 fractional works · 2.1% of its workInformation Systems: 6 fractional works · 0.8% of its workComputer Vision and Pattern Recognition: 2 fractional works · 0.3% of its workComputational Theory and Mathematics: 2 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.2% of its workEarth and Planetary Sciences: 7 fractional works · 0.9% of its workGeochemistry and Petrology: 2 fractional works · 0.3% of its workGeophysics: 2 fractional works · 0.2% of its workSmaller subfields together: 3 fractional works · 0.4% of its workEnergy: 5 fractional works · 0.6% of its workRenewable Energy, Sustainability and the Environment: 3 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.2% of its workChemical Engineering: 4 fractional works · 0.5% of its workMathematics: 4 fractional works · 0.5% of its workHealth Sciences: 180 fractional works · 24.0% of its workMedicine: 152 fractional works · 20.2% of its workRadiology, Nuclear Medicine and Imaging: 34 fractional works · 4.5% of its workPulmonary and Respiratory Medicine: 14 fractional works · 1.9% of its workEndocrinology, Diabetes and Metabolism: 11 fractional works · 1.4% of its workEpidemiology: 10 fractional works · 1.3% of its workOncology: 8 fractional works · 1.1% of its workCardiology and Cardiovascular Medicine: 7 fractional works · 0.9% of its workSurgery: 7 fractional works · 0.9% of its workPhysiology: 6 fractional works · 0.9% of its workPublic Health, Environmental and Occupational Health: 6 fractional works · 0.8% of its workInfectious Diseases: 6 fractional works · 0.8% of its workPharmacology: 4 fractional works · 0.6% of its workPsychiatry and Mental health: 4 fractional works · 0.5% of its workPediatrics, Perinatology and Child Health: 3 fractional works · 0.4% of its workComplementary and alternative medicine: 3 fractional works · 0.3% of its workEmergency Medicine: 2 fractional works · 0.3% of its workPathology and Forensic Medicine: 2 fractional works · 0.3% of its workNephrology: 2 fractional works · 0.3% of its workNeurology: 2 fractional works · 0.3% of its workObstetrics and Gynecology: 2 fractional works · 0.3% of its workOphthalmology: 2 fractional works · 0.3% of its workReproductive Medicine: 2 fractional works · 0.3% of its workRheumatology: 2 fractional works · 0.2% of its workBiochemistry: 2 fractional works · 0.2% of its workSmaller subfields together: 11 fractional works · 1.4% of its workHealth Professions: 15 fractional works · 2.0% of its workGeneral Health Professions: 7 fractional works · 1.0% of its workRadiological and Ultrasound Technology: 4 fractional works · 0.6% of its workSmaller subfields together: 3 fractional works · 0.5% of its workNursing: 8 fractional works · 1.0% of its workNutrition and Dietetics: 8 fractional works · 1.0% of its workDentistry: 5 fractional works · 0.6% of its workPeriodontics: 2 fractional works · 0.3% of its workOral Surgery: 2 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.1% of its workVeterinary: 1 fractional works · 0.1% of its workLife Sciences: 101 fractional works · 13.4% of its workAgricultural and Biological Sciences: 43 fractional works · 5.7% of its workPlant Science: 25 fractional works · 3.3% of its workFood Science: 7 fractional works · 0.9% of its workInsect Science: 5 fractional works · 0.7% of its workEcology, Evolution, Behavior and Systematics: 2 fractional works · 0.2% of its workSmaller subfields together: 4 fractional works · 0.6% of its workBiochemistry, Genetics and Molecular Biology: 39 fractional works · 5.2% of its workMolecular Biology: 20 fractional works · 2.6% of its workGenetics: 6 fractional works · 0.7% of its workCancer Research: 3 fractional works · 0.4% of its workCell Biology: 3 fractional works · 0.4% of its workBiochemistry: 2 fractional works · 0.2% of its workSmaller subfields together: 6 fractional works · 0.7% of its workNeuroscience: 7 fractional works · 1.0% of its workCognitive Neuroscience: 3 fractional works · 0.3% of its workSmaller subfields together: 5 fractional works · 0.7% of its workPharmacology, Toxicology and Pharmaceutics: 7 fractional works · 0.9% of its workPharmacology: 3 fractional works · 0.4% of its workPharmaceutical Science: 3 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.1% of its workImmunology and Microbiology: 5 fractional works · 0.7% of its workImmunology: 3 fractional works · 0.4% of its workSmaller subfields together: 2 fractional works · 0.3% of its workSocial Sciences: 90 fractional works · 12.0% of its workSocial Sciences: 34 fractional works · 4.5% of its workSociology and Political Science: 11 fractional works · 1.5% of its workPolitical Science and International Relations: 5 fractional works · 0.7% of its workEducation: 4 fractional works · 0.6% of its workTransportation: 2 fractional works · 0.3% of its workHealth: 2 fractional works · 0.3% of its workSafety Research: 2 fractional works · 0.2% of its workSmaller subfields together: 7 fractional works · 0.9% of its workArts and Humanities: 17 fractional works · 2.3% of its workLanguage and Linguistics: 5 fractional works · 0.7% of its workPhilosophy: 4 fractional works · 0.5% of its workLiterature and Literary Theory: 4 fractional works · 0.5% of its workArcheology: 2 fractional works · 0.2% of its workSmaller subfields together: 3 fractional works · 0.4% of its workPsychology: 17 fractional works · 2.3% of its workClinical Psychology: 8 fractional works · 1.0% of its workExperimental and Cognitive Psychology: 3 fractional works · 0.4% of its workDevelopmental and Educational Psychology: 3 fractional works · 0.4% of its workSmaller subfields together: 3 fractional works · 0.4% of its workBusiness, Management and Accounting: 11 fractional works · 1.5% of its workManagement Information Systems: 5 fractional works · 0.6% of its workOrganizational Behavior and Human Resource Management: 2 fractional works · 0.3% of its workSmaller subfields together: 4 fractional works · 0.6% of its workDecision Sciences: 8 fractional works · 1.0% of its workStatistics, Probability and Uncertainty: 4 fractional works · 0.6% of its workInformation Systems and Management: 2 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 4 fractional works · 0.5% of its workEconomics and Econometrics: 2 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.2% of its workALL ITS WORKTehran750fractional works, 2022-now
Life Sciences13%Physical Sciences51%Health Sciences24%Social Sciences12%

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 city does than the world.

Its 4 domains and 26 fields, with their numbers
    1. Engineering14719.6%
    2. Materials Science699.1%
    3. Physics and Astronomy557.3%
    4. Environmental Science314.2%
    5. Chemistry314.2%
    6. Computer Science283.7%
    7. Earth and Planetary Sciences70.9%
    8. Energy50.6%
    9. Chemical Engineering40.5%
    10. Mathematics40.5%
    1. Medicine15220.2%
    2. Health Professions152.0%
    3. Nursing81.0%
    4. Dentistry50.6%
    5. Veterinary10.1%
    1. Agricultural and Biological Sciences435.7%
    2. Biochemistry, Genetics and Molecular Biology395.2%
    3. Neuroscience71.0%
    4. Pharmacology, Toxicology and Pharmaceutics70.9%
    5. Immunology and Microbiology50.7%
    1. Social Sciences344.5%
    2. Arts and Humanities172.3%
    3. Psychology172.3%
    4. Business, Management and Accounting111.5%
    5. Decision Sciences81.0%
    6. Economics, Econometrics and Finance40.5%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What is Tehran strongest at in research?

Relative to its size, research in Tehran is most concentrated in Radiation and Radiology, Nuclear Medicine and Imaging (27.9× the world share in Radiation).

  1. RadiationSubfield · 26.7 works28×
  2. Radiology, Nuclear Medicine and ImagingSubfield · 30.5 works4.8×
← less than its size predicts1×more →

Location quotient against the world baseline. Inside a single field a city is a meaningful unit, which is why this is where a city is measured at all.

The whole field profile

All 26 fields at once: above the ring is more than a place this size would be expected to do. A specialist and a generalist produce the same ranked list and a completely different shape.

Agricultural and Biological Sciences: 1.17× its world share, 39 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.98× its world share, 36 worksBiochemistry, Geneti…Immunology and Microbiology: 0.63× its world share, 4 worksImmunology and Micro…Neuroscience: 0.63× its world share, 7 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 2.56× its world share, 6 worksPharmacology, Toxico…Chemical Engineering: 1.48× its world share, 4 worksChemical EngineeringChemistry: 2.70× its world share, 30 worksChemistryComputer Science: 0.51× its world share, 28 worksComputer ScienceEarth and Planetary Sciences: 0.50× its world share, 6 worksEarth and Planetary …Energy: 0.68× its world share, 4 worksEnergyEngineering: 1.32× its world share, 138 worksEngineeringEnvironmental Science: 0.84× its world share, 29 worksEnvironmental ScienceMaterials Science: 2.62× its world share, 64 worksMaterials ScienceMathematics: 0.42× its world share, 3 worksMathematicsPhysics and Astronomy: 3.28× its world share, 51 worksPhysics and AstronomyDentistry: 1.35× its world share, 5 worksDentistryHealth Professions: 0.75× its world share, 14 worksHealth ProfessionsMedicine: 1.04× its world share, 140 worksMedicineNursing: 1.95× its world share, 7 worksNursingVeterinary: 0.66× its world share, 1 worksVeterinaryArts and Humanities: 0.72× its world share, 15 worksArts and HumanitiesBusiness, Management and Accounting: 0.46× its world share, 10 worksBusiness, Management…Decision Sciences: 1.08× its world share, 7 worksDecision SciencesEconomics, Econometrics and Finance: 0.19× its world share, 3 worksEconomics, Econometr…Psychology: 0.79× its world share, 17 worksPsychologySocial Sciences: 0.36× its world share, 31 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 3.3×. Every wedge is a field page.

All 26 fields, with their numbers
  1. Physics and Astronomy3.28×51 works
  2. Chemistry2.70×30 works
  3. Materials Science2.62×64 works
  4. Pharmacology, Toxicology and Pharmaceutics2.56×6 works
  5. Nursing1.95×7 works
  6. Chemical Engineering1.48×4 works
  7. Dentistry1.35×5 works
  8. Engineering1.32×138 works
  9. Agricultural and Biological Sciences1.17×39 works
  10. Decision Sciences1.08×7 works
  11. Medicine1.04×140 works
  12. Biochemistry, Genetics and Molecular Biology0.98×36 works
  13. Environmental Science0.84×29 works
  14. Psychology0.79×17 works
  15. Health Professions0.75×14 works
  16. Arts and Humanities0.72×15 works
  17. Energy0.68×4 works
  18. Veterinary0.66×1 works
  19. Immunology and Microbiology0.63×4 works
  20. Neuroscience0.63×7 works
  21. Computer Science0.51×28 works
  22. Earth and Planetary Sciences0.50×6 works
  23. Business, Management and Accounting0.46×10 works
  24. Mathematics0.42×3 works
  25. Social Sciences0.36×31 works
  26. Economics, Econometrics and Finance0.19×3 works

Which keywords describe research in Tehran?

By fractional works in 2022-now, weighted toward what it does more of than the world: Adsorption, Molten Salt, Nuclear Reactor, Tomography, Extraction, Data Analysis, Dosimetry and Biomedical Applications.

▲ 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 city'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. Biomedical Applications24▲ 2.6×27 topics
  2. Nanoparticles21▲ 2.2×36 topics
  3. Adsorption20▲ 13×7 topics
  4. Cancer20▲ 1.95×45 topics
  5. Nanomaterials19▲ 2.4×15 topics
  6. Molten Salt19▲ 80×1 topic
  7. Nuclear Reactor19▲ 80×1 topic
  8. Data Analysis15▲ 7.4×5 topics
  9. Tomography15▲ 11×5 topics
  10. Extraction14▲ 15×5 topics
  11. Dosimetry14▲ 26×2 topics
  12. Cancer Treatment14▲ 7.7×10 topics
  13. Small-Angle Scattering14▲ 35×2 topics
  14. Neutron Activation Analysis13▲ 55×1 topic
  15. Neutron Imaging13▲ 55×1 topic
  16. Bioremediation12▲ 12×6 topics
  17. Metal Recovery12▲ 7.9×3 topics
  18. Actinides11▲ 29×2 topics
  19. PET Imaging11▲ 8.8×3 topics
  20. Crystal Growth11▲ 5.3×9 topics
  21. Sorption11▲ 30×2 topics
  22. Coordination Chemistry10▲ 22×3 topics
  23. Lanthanides10▲ 33×1 topic
  24. Uranium10▲ 42×1 topic
  25. Monte Carlo Simulation10▲ 6.9×5 topics
  26. Density Functional Theory10▲ 13×3 topics
  27. Oxidation Resistance10▲ 13×2 topics
  28. Targeted Therapy10▲ 6.0×5 topics
  29. High Temperature Behavior10▲ 24×2 topics
  30. Hydrogen Embrittlement10▲ 16×3 topics
  31. Spectroscopy9▲ 7.3×8 topics
  32. Accident Tolerant Fuels9▲ 35×1 topic
  33. Fuel Cladding9▲ 35×1 topic
  34. Gold Nanoparticles9▲ 15×3 topics
  35. Rare Earth Elements9▲ 8.1×4 topics
  36. Radioimmunotherapy9▲ 41×1 topic
  37. Radiopharmaceuticals9▲ 41×1 topic
  38. Thermal Properties9▲ 9.5×5 topics
  39. Sustainable Technology8▲ 10×2 topics
  40. Ionizing Radiation8▲ 16×3 topics

What research is done in Tehran?

Nuclear reactor physics and engineering: 18 fractional worksNuclear Physics and Applications: 13 fractional worksRadioactive element chem…10Radioactive element chemistry and processing: 10 fractional worksNuclear Materials and Pr…9Nuclear Materials and Properties: 9 fractional worksRadiopharmaceutical Chemistry and Applications: 8 fractional worksExtraction and Separation Processes: 7 fractional worksRadiation Detection and …7Radiation Detection and Scintillator Technologies: 7 fractional worksMedical Imaging Techniques and Applications: 7 fractional worksRadiation Therapy and Dosimetry: 6 fractional worksGraphite, nuclear techno…6Graphite, nuclear technology, radiation studies: 6 fractional works
Aerospace EngineeringRadiationInorganic ChemistryMaterials Chemistry3 others

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

  1. 1 Nuclear reactor physics and engineering Aerospace Engineering 18 works
  2. 2 Nuclear Physics and Applications Radiation 13 works
  3. 3 Radioactive element chemistry and processing Inorganic Chemistry 10 works
  4. 4 Nuclear Materials and Properties Materials Chemistry 9 works
  5. 5 Radiopharmaceutical Chemistry and Applications Radiology, Nuclear Medicine and Imaging 8 works
  6. 6 Extraction and Separation Processes Mechanical Engineering 7 works
  7. 7 Radiation Detection and Scintillator Technologies Radiation 7 works
  8. 8 Medical Imaging Techniques and Applications Radiology, Nuclear Medicine and Imaging 7 works
  9. 9 Radiation Therapy and Dosimetry Pulmonary and Respiratory Medicine 6 works
  10. 10 Graphite, nuclear technology, radiation studies Materials Chemistry 6 works

Research output over time

still counting1990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more.

How much of it reaches the world top 10%

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

still counting10%20%Tehran14.6% in 2025all institutions10.0% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 16.7% in 2024.

Discussion

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