The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 years. As of Jan 02, 2026, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.752) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
Rankings
MXene (Nano-Materials) | Solar Energy | Energy storage | nanofluids | Heat Transfe
H-Index Metrics
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H-Index145
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i10 Index605
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Citation Counts85,743
Rankings
membrane technology | nanostructured materials | hemodialysis | reverse osmosis | fuel cel
H-Index Metrics
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H-Index144
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i10 Index1,169
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Citation Counts98,551
Rankings
Composite materials | Biocomposite | Design for Sustainability | Natural fibre composite
H-Index Metrics
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H-Index131
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i10 Index743
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Citation Counts62,793
Rankings
Hybrid composites | Biocomposite | Natural fibre composites | Polymer composites | Composite Material
H-Index Metrics
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H-Index124
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i10 Index569
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Citation Counts61,194
Rankings
Power Electronics | Renewable Energy Systems and Energ
H-Index Metrics
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H-Index123
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i10 Index632
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Citation Counts68,595
Rankings
Reaction Engineering & Catalysis | Air Pollution and Waste Water Control Engineering | Fuel Technology | Nanoscience & Nanotechno
H-Index Metrics
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H-Index120
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i10 Index558
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Citation Counts56,467
Rankings
Renewable Energy | Power Electronics | Drives | Electrical Engineerin
H-Index Metrics
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H-Index112
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i10 Index496
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Citation Counts49,614
Rankings
Pyrolysis | Microwave Pyrolysis | Waste and Biomass Recovery | Water & Wastewater Treatment | Biocha
H-Index Metrics
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H-Index107
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i10 Index474
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Citation Counts38,724
Rankings
Rock Mechanics | Tunneling | Artificial Intelligence | Blasting | Geotechnic
H-Index Metrics
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H-Index105
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i10 Index317
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Citation Counts29,832
Rankings
Information Systems | Industrial Management | Quality Management | Mobile Technology | Technology Adoptio
H-Index Metrics
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H-Index101
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i10 Index215
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Citation Counts38,815
Rankings
Cybersecurity | AI | Security and Privacy | Agentic AI | Software Engineerin
H-Index Metrics
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H-Index99
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i10 Index451
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Citation Counts26,610
Rankings
Droughts | Climate Change | Statistical hydrology | Groundwater hydrology | Hydrologica
H-Index Metrics
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H-Index96
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i10 Index382
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Citation Counts28,748
Rankings
Combustion | Nanofluid Heat Transfer | Renewable Energy | Computational Fluid Dynamic
H-Index Metrics
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H-Index91
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i10 Index292
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Citation Counts24,966
Rankings
Rankings
Rankings
2D Materials | Photocatalysis | Green hydrogen | Energy storage | CO2 conversio
H-Index Metrics
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H-Index86
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i10 Index286
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Citation Counts21,932
Rankings
Energy Finance | Green Finance | Climate Change | Equity Market | Sustainable Developmen
H-Index Metrics
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H-Index85
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i10 Index192
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Citation Counts24,896
Rankings
Mobile Cloud Computing | Network Security | Wireless Networkin
H-Index Metrics
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H-Index85
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i10 Index250
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Citation Counts35,546
Rankings
Heterogeneous Catalysts | Biodiesel | Nano-magnetic Catalysts | Bio-based Catalyst
H-Index Metrics
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H-Index84
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i10 Index338
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Citation Counts24,189
Rankings
Chemical engineering | fuel cell | hydrogen energy | drying technology | food technology
H-Index Metrics
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H-Index82
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i10 Index292
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Citation Counts26,701
Rankings
graphene | nanomaterials | solar energy conversion | energy storage | sensor
H-Index Metrics
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H-Index82
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i10 Index258
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Citation Counts20,496
Rankings
Rankings
Advanced Ceramics | Engineering and Technology | Materials Scienc
H-Index Metrics
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H-Index80
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i10 Index287
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Citation Counts20,353
Rankings
NANOMATERIALS | NANODELIVERY | NANOMEDICINE | NANOENERG
H-Index Metrics
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H-Index80
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i10 Index340
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Citation Counts23,051
Rankings
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