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 Sep 07, 2025, 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 (1.122.060) 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
Energy | Process Simulation | Thermofluids | Fuel | Gasificatio
H-Index Metrics
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H-Index19
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i10 Index33
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Citation Counts1,705
Rankings
GIS and Remote Sensing | Hydrology and Hydrological Modeling | Climate change and Modeling | Ecosystem Service | Land Fragmentatio
H-Index Metrics
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H-Index14
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i10 Index14
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Citation Counts1,638
Rankings
Renewable energy | energy conservation and management | energy systems | energy polic
H-Index Metrics
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H-Index14
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i10 Index21
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Citation Counts678
Rankings
Bioenergy | Gasification | Biofuels | Energy Technologie
H-Index Metrics
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H-Index11
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i10 Index11
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Citation Counts1,162
Rankings
Rankings
Advanced Manufacturing System | modelling and simulation | pipeline network systems | Renewable energy resource optimizatio
H-Index Metrics
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H-Index10
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i10 Index11
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Citation Counts794
Rankings
Renewable Energy | Machine design | Energy and Process Engineerin
H-Index Metrics
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H-Index10
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i10 Index11
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Citation Counts481
Rankings
Renewable Energy | Energy Access | and Climate Change Mitigatio
H-Index Metrics
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H-Index9
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i10 Index7
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Citation Counts149
Rankings
Green energy engineering | water and waste water engineering | air pollution control engineering | soi
H-Index Metrics
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H-Index8
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i10 Index6
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Citation Counts225
Rankings
Sustainable Energy Engineering: Solar Energy | Bioenergy (Biogas & Biomass gasifications) | Wind Energy and Energy Simulation
H-Index Metrics
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H-Index7
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i10 Index6
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Citation Counts110
Rankings
Rankings
Chemical Engineering | Process Engineering | Bioenergy Engineering | Renewable Energ
H-Index Metrics
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H-Index6
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i10 Index5
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Citation Counts157
Rankings
Rankings
Thermal engineering | Solar thermal energy | RAC | Jjet engines | Energy Modellin
H-Index Metrics
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H-Index6
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i10 Index3
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Citation Counts97
Rankings
Solar dryer | Green Hydrogen production and Nuclear Energy Engineerin
H-Index Metrics
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H-Index6
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i10 Index3
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Citation Counts93
Rankings
Hosting Capacity | Distribution Systems | Machine Learning | DER
H-Index Metrics
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H-Index5
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i10 Index5
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Citation Counts180
Rankings
Rankings
Rankings
Green Energy | Biofuels | Solar Energy | Wind Energy | Renewable Energ
H-Index Metrics
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H-Index3
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i10 Index1
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Citation Counts21
Rankings
Sustainable energy engineering | solar cell | thin film
H-Index Metrics
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H-Index2
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i10 Index2
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Citation Counts73
Rankings
Rankings
Biomass Energy | Renewable Energy | Hydrogen Storage | Chemical Scienc
H-Index Metrics
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H-Index2
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i10 Index1
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Citation Counts20

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