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 01, 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
Hydrogen energy | Bioenergy | Clean energy | Thermoelectric generation | CO2 capture and utilizaito
H-Index Metrics
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H-Index124
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i10 Index696
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Citation Counts63,461
Rankings
Rankings
Algal Biotechnology | Biorefinery & Bioeconomy | High value-Bioproducts | Biofuels | Thermochemical conversio
H-Index Metrics
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H-Index53
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i10 Index101
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Citation Counts8,633
Rankings
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bioenergy | torrefaction | pyrolysis | hydrogen production and purification | DME synthesi
H-Index Metrics
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H-Index25
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i10 Index31
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Citation Counts3,626
Rankings
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Rankings
Satellite Altimetry | Coastal Altimetry | Remote Sensing | Ionosphere | Climate Chang
H-Index Metrics
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H-Index24
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i10 Index35
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Citation Counts1,974
Rankings
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Rankings
Geomorphology | Hydrology | Landslide | Hazard | GI
H-Index Metrics
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H-Index22
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i10 Index28
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Citation Counts1,798
Rankings
Astrophysics | Star Formation | Interstellar Medium | Turbulenc
H-Index Metrics
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H-Index20
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i10 Index24
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Citation Counts1,228
Rankings
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Rankings
AI Vehicle | AI Drone | Autonomous Driving System | Wireless Communicatio
H-Index Metrics
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H-Index16
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i10 Index21
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Citation Counts691
Rankings
WebGIS | Internet of Things | Digital Twin | Image Recognition | HC
H-Index Metrics
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H-Index14
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i10 Index21
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Citation Counts742
Rankings
III-V Nitride Devices | Solid State Sensor | Nanocrystal Memor
H-Index Metrics
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H-Index12
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i10 Index13
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Citation Counts594
Rankings
Computational Fluid Dynamics | Combustion | Turbulenc
H-Index Metrics
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H-Index10
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i10 Index11
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Citation Counts329
Rankings
Aerospace engineering | fluid dynamics | flow diagnostics | rocket | propulsio
H-Index Metrics
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H-Index9
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i10 Index8
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Citation Counts310
Rankings
Nonlinear Vibration | Vibration Energy Harvester | Aeroelasticit
H-Index Metrics
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H-Index9
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i10 Index8
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Citation Counts206
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