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University · Chennai · India

Tamil Nadu Open University

tnou.ac.inROR OpenAlex
World rank, 2022–2025
#24,281
of 28,054 · #40,490 all time
Rank in India
#1,616
of 1,840
Research works
185
▲ 129% vs 2013–17
Citations
822
4.5 per fractional work
Top-10% rate
9.0%
record average 16.5%
Open access
62%
world 28%

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: 2.18× its world share, 8 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.53× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 0.01× its world share, 0 worksImmunology and Micro…Pharmacology, Toxicology and Pharmaceutics: 1.19× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.80× its world share, 0 worksChemical EngineeringChemistry: 1.12× its world share, 1 worksChemistryComputer Science: 1.48× its world share, 9 worksComputer ScienceEarth and Planetary Sciences: 1.25× its world share, 2 worksEarth and Planetary …Energy: 2.79× its world share, 2 worksEnergyEngineering: 1.15× its world share, 14 worksEngineeringEnvironmental Science: 0.42× its world share, 2 worksEnvironmental ScienceMaterials Science: 2.93× its world share, 8 worksMaterials ScienceMathematics: 1.24× its world share, 1 worksMathematicsPhysics and Astronomy: 0.71× its world share, 1 worksPhysics and AstronomyDentistry: 0.34× its world share, 0 worksDentistryHealth Professions: 0.22× its world share, 0 worksHealth ProfessionsMedicine: 0.20× its world share, 3 worksMedicineNursing: 5.49× its world share, 2 worksNursingArts and Humanities: 2.35× its world share, 5 worksArts and HumanitiesBusiness, Management and Accounting: 0.90× its world share, 2 worksBusiness, Management…Decision Sciences: 1.36× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 1.07× its world share, 2 worksEconomics, Econometr…Psychology: 1.02× its world share, 2 worksPsychologySocial Sciences: 0.95× its world share, 10 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Nursing, 5.5×. Every wedge is a field page.

Which keywords describe research at Tamil Nadu Open University?

By fractional works in 2022–2025, weighted toward what it does more of than the world: E-Learning, Philosophy, Student Satisfaction, Online Learning, Nanomaterials, Gandhi, Nonviolence and Social Justice.

▲ 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. Deep Learning4▲ 1.66×16 topics
  2. E-Learning4▲ 5.1×3 topics
  3. Nanomaterials4▲ 4.3×7 topics
  4. Online Learning3▲ 5.1×3 topics
  5. Philosophy3▲ 9.5×3 topics
  6. Machine Learning3▲ 1.24×12 topics
  7. Student Satisfaction3▲ 20×2 topics
  8. Sustainability3▲ 1.61×7 topics
  9. Globalization3▲ 1.87×9 topics
  10. Social Justice2▲ 5.3×2 topics
  11. Graphene2▲ 4.5×3 topics
  12. Biomedical Applications2▲ 2.5×7 topics
  13. Energy Storage2▲ 4.4×5 topics
  14. Gandhi2▲ 179×1 topic
  15. Nonviolence2▲ 179×1 topic
  16. Metal-Organic Frameworks2▲ 6.1×4 topics
  17. Child Development2▲ 5.7×3 topics
  18. Cognitive Engagement2▲ 30×2 topics
  19. Blended Learning2▲ 15×1 topic
  20. Distance Education2▲ 10×1 topic
  21. Technology Integration2▲ 6.4×2 topics
  22. Superconductivity2▲ 11×8 topics
  23. Google Classroom1▲ 16×1 topic
  24. Nanocrystals1▲ 6.4×4 topics
  25. Semiconductor1▲ 5.0×2 topics
  26. Teacher Perception1▲ 16×1 topic
  27. Water Splitting1▲ 4.9×4 topics
  28. IoT Security1▲ 5.2×2 topics
  29. Liquefaction1▲ 18×2 topics
  30. Policy1▲ 7.5×2 topics
  31. Solar Energy1▲ 5.2×3 topics
  32. Teaching Strategies1▲ 5.5×2 topics
  33. Tunnel1▲ 18×2 topics
  34. 5G Networks1▲ 7.2×2 topics
  35. Carbon-Based Materials1▲ 15×1 topic
  36. Electrochemical Capacitors1▲ 15×1 topic
  37. Maternal and Child Undernutrition1▲ 19×1 topic
  38. Security and Privacy1▲ 7.7×2 topics
  39. Water Sanitation Hygiene1▲ 19×1 topic
  40. Photocatalyst1▲ 7.8×1 topic

Which research topics does Tamil Nadu Open University publish most on?

By volume in 2022–2025: Indian History and Philosophy, Online and Blended Learning, Technology-Enhanced Education Studies and Child Nutrition and Water Access.

Indian History and Philo…2Indian History and Philosophy: 2 fractional worksOnline and Blended Learn…2Online and Blended Learning: 2 fractional worksTechnology-Enhanced Educ…1Technology-Enhanced Education Studies: 1 fractional worksChild Nutrition and Wate…1Child Nutrition and Water Access: 1 fractional worksSupercapacitor Materials and Fabrication: 1 fractional worksConducting polymers and applications: 1 fractional worksAdvanced Photocatalysis …1Advanced Photocatalysis Techniques: 1 fractional worksGeotechnical Engineering and Underground Structures: 1 fractional worksEducational Methods and Media Use: 1 fractional worksSouth Asian Cinema and C…1South Asian Cinema and Culture: 1 fractional works
PhilosophyEducationNutrition and DieteticsElectronic, Optical and Magnetic Materials5 others

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

  1. 1 Indian History and Philosophy Philosophy 2 works
  2. 2 Online and Blended Learning Education 2 works
  3. 3 Technology-Enhanced Education Studies Education 1 works
  4. 4 Child Nutrition and Water Access Nutrition and Dietetics 1 works
  5. 5 Supercapacitor Materials and Fabrication Electronic, Optical and Magnetic Materials 1 works
  6. 6 Conducting polymers and applications Polymers and Plastics 1 works
  7. 7 Advanced Photocatalysis Techniques Renewable Energy, Sustainability and the Environment 1 works
  8. 8 Geotechnical Engineering and Underground Structures Civil and Structural Engineering 1 works
  9. 9 Educational Methods and Media Use Information Systems 1 works
  10. 10 South Asian Cinema and Culture Visual Arts and Performing Arts 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 available62.3%not open37.7%

World: 28% of research is openly available.

with international co-authors13.2%domestic only86.8%

World: 19% is written across borders.

How has Tamil Nadu Open University's research output changed?

Output in 2018–2022 was 129% higher than in 2013–2017.

2005201020152020
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 Chennai

All research institutions in Chennai

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.