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 02, 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 (1.122.044) 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
Nonlinear Dynamic | Fluid mechanics | AGM Method | HPM AG
H-Index Metrics
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H-Index135
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i10 Index882
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Citation Counts67,245
Rankings
Biotechnology | Wastewater | Biofuel | Bioethanol | Drug synthesis via enzymatic reaction
H-Index Metrics
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H-Index64
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i10 Index282
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Citation Counts17,114
Rankings
Fluid mechanics | Renewable Energy | Turbomachiner
H-Index Metrics
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H-Index61
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i10 Index141
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Citation Counts12,275
Rankings
NanoBiotech. | Water & wastewater | Nanobioseafty | Nano-Agriculture | Nano-A
H-Index Metrics
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H-Index58
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i10 Index275
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Citation Counts13,465
Rankings
Thermal-Fluid Science | Renewable Energy | Nanofluids | PC
H-Index Metrics
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H-Index54
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i10 Index147
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Citation Counts9,001
Rankings
Biochemical enginering | Chemical Engineering | Microbial Fuel Cell | Senso
H-Index Metrics
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H-Index49
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i10 Index139
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Citation Counts9,310
Rankings
Heat Transfer Enhancement (Experimentally and Numerically) | Renewable Energy | LB
H-Index Metrics
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H-Index47
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i10 Index120
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Citation Counts7,282
Rankings
Crystallographic Texture | Severe Plastic Deformation | Nanostructured Material
H-Index Metrics
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H-Index45
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i10 Index136
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Citation Counts6,705
Rankings
Supply Chain Design | Cellular manufacturing | Applied operations researc
H-Index Metrics
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H-Index44
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i10 Index95
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Citation Counts5,802
Rankings
Rankings
Biorefinery Engineering | Biomaterials-Bioformulation | Carbon Capture & Utilizatio
H-Index Metrics
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H-Index40
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i10 Index98
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Citation Counts7,344
Rankings
Enhanced Oil Recovery | Surface Phenomena | Wettability | Artificial Intelligence | Supercritical Flui
H-Index Metrics
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H-Index39
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i10 Index76
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Citation Counts4,027
Rankings
Membrane Technology | Water treatment | Wastewater treatment | Biological treatment | Nanocomposite material
H-Index Metrics
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H-Index38
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i10 Index93
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Citation Counts4,280
Rankings
Soil Liquefaction | Numerical Modelling | Ground Improvemen
H-Index Metrics
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H-Index38
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i10 Index90
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Citation Counts4,447
Rankings
wastewater treatment | adsorption | drug delivery | nanocomposit
H-Index Metrics
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H-Index35
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i10 Index91
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Citation Counts3,846
Rankings
Joining of Materials | Metallurgy of welding | Process modeling and simulatio
H-Index Metrics
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H-Index33
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i10 Index95
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Citation Counts3,666
Rankings
Catalysis | Kinetics and reactor design | Mthanol to olefins | Hydrogen production and purification | Molecularly imprinted polymer
H-Index Metrics
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H-Index33
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i10 Index71
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Citation Counts3,237
Rankings
Membrane processes | CO2 capture | Hydrogen production & storage | Gas conversion processe
H-Index Metrics
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H-Index32
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i10 Index65
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Citation Counts3,318
Rankings
Biomedical Signal Processing | Engineering Optimization | Machine learning | Metamaterials | Metaheuristic
H-Index Metrics
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H-Index32
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i10 Index70
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Citation Counts3,900
Rankings
Design of Structures | Concrete Repair | Structural Composites | Sustainability in Civil Engineerin
H-Index Metrics
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H-Index31
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i10 Index70
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Citation Counts4,162
Rankings
Microfluidics | Lab on a disk | CFD | Heat transfer | Fuel cel
H-Index Metrics
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H-Index31
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i10 Index72
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Citation Counts2,964
Rankings
Pavement Engineering | Pavement | Infrastructure Materials | Pavement Management | Concrete pavemen
H-Index Metrics
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H-Index29
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i10 Index47
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Citation Counts3,259
Rankings
Rankings
Parallel Robots | Theoretical kinematics | Robotics | Parallel machine tool
H-Index Metrics
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H-Index29
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i10 Index53
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Citation Counts2,616
Rankings

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