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 06, 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 (0) 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].
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Water Quality Water Treatment Degradation Water and Wastewater Treatment Biocha
H-Index Metrics
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H-Index23
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i10 Index39
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Citation Counts2,212
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Optimization | Operational Researc
H-Index Metrics
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H-Index23
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i10 Index50
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Citation Counts1,578
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Analytical Chemistry | Nano emulsion | Food Chemistry | Deep Eutectic Solven
H-Index Metrics
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H-Index12
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i10 Index14
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Citation Counts446
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Quantum Physics | Defect in Semiconductor | Quantum Mechanics | Quaternion Quantum Mechanic
H-Index Metrics
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H-Index11
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i10 Index15
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Citation Counts465
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Quantitative analysis | Research methods | Project management | Business forecastin
H-Index Metrics
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H-Index11
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i10 Index12
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Citation Counts612
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Nonlinear Analysis | Nonlinear Programming | Theory of Optimization | Game Theor
H-Index Metrics
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H-Index9
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i10 Index9
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Citation Counts500
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International Education | English Language Education | Skills and Competence
H-Index Metrics
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H-Index8
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i10 Index6
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Citation Counts815
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