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 03, 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
Cooling of Electronic System | Battery Thermal Management Systems | Intelligent Energy System
H-Index Metrics
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H-Index47
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i10 Index88
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Citation Counts6,172
Rankings
Internal Combustion Engines | Fuels and Combustion | Alternative Energy | Emission
H-Index Metrics
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H-Index30
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i10 Index42
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Citation Counts2,823
Rankings
Internal Combustion Engine | Low Temperature Combustion | Energy and Fuel | PEM Fuel Cel
H-Index Metrics
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H-Index27
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i10 Index40
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Citation Counts2,120
Rankings
Internal Combustion Engines | Alternative Fuels | Combustion | Engine Cycle Simulations | CF
H-Index Metrics
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H-Index26
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i10 Index33
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Citation Counts1,972
Rankings
Rankings
Rankings
Alternative Fuels | Internal Combustion Engines | Plasma Combustion | Engine Test
H-Index Metrics
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H-Index22
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i10 Index26
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Citation Counts3,803
Rankings
Automotive Engineering | Mechanical Engineering | Internal Combustion Engines | Biofuel
H-Index Metrics
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H-Index22
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i10 Index38
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Citation Counts2,055
Rankings
Stirling and internal combustion engines | heat transfer | fluid mechanics | engine dynamic and vibration | engineering mathematic
H-Index Metrics
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H-Index22
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i10 Index35
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Citation Counts1,680
Rankings
Thermodynamics | Internal Combustion Engines | Engine Performance Emission and Combustion Analysis | Alternative Fuels | Engine Con
H-Index Metrics
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H-Index21
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i10 Index32
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Citation Counts1,822
Rankings
Rankings
Yakıtlar | içten yanmalı motorlar | yanma | termodinami
H-Index Metrics
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H-Index18
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i10 Index22
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Citation Counts1,408
Rankings
Rankings
internal combustion engines | HCCI | RCCI | thermodynamics | automotive engineerin
H-Index Metrics
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H-Index17
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i10 Index24
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Citation Counts1,225
Rankings
İçten Yanmalı Motorlar | Yakıtlar | Yanma | Egzoz Emisyonlar
H-Index Metrics
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H-Index17
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i10 Index20
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Citation Counts2,830
Rankings
Rankings
Automotive Engineering | IC Engines | Alternative Fuels | Combustion | Engine Dynamic
H-Index Metrics
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H-Index15
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i10 Index19
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Citation Counts1,037
Rankings
Rankings
Automotive Engineering | Mechanical Engineering | Materials Engeenirein
H-Index Metrics
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H-Index14
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i10 Index17
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Citation Counts918
Rankings
Automotive | electric vehicle | hydrogen vehicle | brake linin
H-Index Metrics
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H-Index14
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i10 Index22
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Citation Counts765
Rankings
Rankings
Internal Combustion Engines | Biofuels | Combustion in Engines | Exhaust Emission
H-Index Metrics
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H-Index13
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i10 Index16
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Citation Counts2,305
Rankings
Rankings
Surface Coating | Wear | Nanomaterial | Supercapacitor | Biomateria
H-Index Metrics
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H-Index12
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i10 Index14
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Citation Counts564
Rankings
Internal Combustion Engines | Thermodynamics | Low Temperature Combustion (HCCI-PCCI-RCCI etc.) | Computational Fluid Dynamics | St
H-Index Metrics
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H-Index12
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i10 Index14
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Citation Counts545
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