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 6 years. As of Jun 15, 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 (1.121.296) 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



Adsorpsi | fluida superkritis | karbon aktif | clay material
H-Index Metrics
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H-Index65
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i10 Index203
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Citation Counts21,552
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Engineering & Technology | Adsorptio
H-Index Metrics
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H-Index29
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i10 Index76
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Citation Counts3,167
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Chemical Engineering | Environment | Nanomaterials | Biomass Valorizatio
H-Index Metrics
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H-Index29
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i10 Index46
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Citation Counts2,841
Rankings



Manajemen Strategik | Manajemen Operasional | Manajemen Teknolog
H-Index Metrics
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H-Index25
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i10 Index65
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Citation Counts3,385
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Sustainable energy | environmental science | material science | separation/purificatio
H-Index Metrics
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H-Index23
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i10 Index37
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Citation Counts1,671
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teacher professional development | language learning | language and education polic
H-Index Metrics
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H-Index21
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i10 Index45
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Citation Counts11,597
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Rankings



Environmental engineering | metal recovery | leachin
H-Index Metrics
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H-Index14
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i10 Index17
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Citation Counts524
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food processing | food packaging | candy and sweetene
H-Index Metrics
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H-Index14
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i10 Index18
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Citation Counts625
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food technology | functional food | food flavor | food chemistry
H-Index Metrics
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H-Index13
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i10 Index16
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Citation Counts754
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English Language Teaching | Feedback | Teacher Professional Developmen
H-Index Metrics
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H-Index12
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i10 Index12
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Citation Counts1,064
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Behavioural Finance | Corporate Finance | Entrepreneurial Financ
H-Index Metrics
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H-Index11
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i10 Index14
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Citation Counts535
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