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
Biofuels | Biomass | Biotechnology | Chemical Engineering | Waste Utilizatio
H-Index Metrics
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H-Index28
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i10 Index60
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Citation Counts2,339
Rankings
Energy Systems | Artificial Environment | HVACR | Thermal Comfort | Air Qualit
H-Index Metrics
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H-Index18
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i10 Index28
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Citation Counts1,313
Rankings
Rankings
Energy | Sustainability | Systems Thinking | Poverty Alleviatio
H-Index Metrics
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H-Index11
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i10 Index12
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Citation Counts978
Rankings
Plant Microbial Fuel Cells | Renewable Energy | Smart Agriculture | Waste-to-Energy Processe
H-Index Metrics
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H-Index10
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i10 Index10
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Citation Counts309
Rankings
Rankings
Rankings
Rankings
Rankings
Rankings
Energy Engineering | Agricultural Engineering | Bioenergy and biofuels | Renewable Energy | Biomas
H-Index Metrics
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H-Index7
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i10 Index7
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Citation Counts770
Rankings
Energy Access | Renewable Energy | Rural Electrification | Just Transition | Systems Thinkin
H-Index Metrics
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H-Index7
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i10 Index6
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Citation Counts268
Rankings
Solar energy | Renewable energy | Phase change materials | Passive building coolin
H-Index Metrics
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H-Index7
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i10 Index4
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Citation Counts144
Rankings
Rankings
Rankings
Power and Energy Engineering | Smart Systems | AI and ML | Quantum Computing | Optimizatio
H-Index Metrics
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H-Index5
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i10 Index4
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Citation Counts168
Rankings
Lightning Protection | Power Electronics | Power Converters | Renewable Energ
H-Index Metrics
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H-Index5
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i10 Index2
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Citation Counts71
Rankings
Rankings
Rankings
remote sensing | geographic information systems | geomatics | atmospheric science | renewable energ
H-Index Metrics
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H-Index5
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i10 Index2
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Citation Counts83
Rankings
Power Electronics | Energy Engineering | Technology Educatio
H-Index Metrics
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H-Index5
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i10 Index0
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Citation Counts53
Rankings
Power System | Electrical Installation and Maintenance | Solar Power in D
H-Index Metrics
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H-Index4
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i10 Index4
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Citation Counts542
Rankings
Rankings
Renewable Energy | Electric Vehicle | IoT | Smart Grid | HVD
H-Index Metrics
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H-Index4
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i10 Index2
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Citation Counts73
Rankings
energy storage systems | solar energy systems | renewable energy systems | power electronic
H-Index Metrics
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H-Index4
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i10 Index2
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Citation Counts71
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