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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 04, 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].
* Total H Index Rankings
Rankings
85,938
World Rank
20
Country Rank
1
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
Génie de l'Environnement | Génie des Procédés | Chimie de l'Environnemen
Génie de l'Environnement | Génie des Procédés | Chimie de l'Environnemen
H-Index Metrics
-
H-Index52
-
i10 Index110
-
Citation Counts8,134
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* Total H Index Rankings
Rankings
173,120
World Rank
45
Country Rank
2
University
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
activated carbon | Biosorbent | groundwater qualit
activated carbon | Biosorbent | groundwater qualit
H-Index Metrics
-
H-Index38
-
i10 Index78
-
Citation Counts4,907
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* Total H Index Rankings
Rankings
366,514
World Rank
216
Country Rank
15
University
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Pharmaceutical engineering | Materials science | Environmental scienc
Pharmaceutical engineering | Materials science | Environmental scienc
H-Index Metrics
-
H-Index25
-
i10 Index34
-
Citation Counts1,907
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* Total H Index Rankings
Rankings
380,370
World Rank
232
Country Rank
1
University
Ranking Based On Selection:
4
* Total H Index Rankings
Rankings
443,551
World Rank
321
Country Rank
1
University
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
Adsorption | Water Treatment | Environmental Processes | Adsorbent Synthesis | etc
Adsorption | Water Treatment | Environmental Processes | Adsorbent Synthesis | etc
H-Index Metrics
-
H-Index22
-
i10 Index37
-
Citation Counts1,993
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* Total H Index Rankings
Rankings
507,578
World Rank
436
Country Rank
8
University
Ranking Based On Selection:
6
* Total H Index Rankings
Rankings
515,217
World Rank
449
Country Rank
7
University
Ranking Based On Selection:
7
Engineering & Technology / Environmental Science & Engineering
environnement | sciences alimentaires | assurance qualit
environnement | sciences alimentaires | assurance qualit
H-Index Metrics
-
H-Index20
-
i10 Index20
-
Citation Counts2,255
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* Total H Index Rankings
Rankings
564,601
World Rank
560
Country Rank
12
University
Ranking Based On Selection:
8
* Total H Index Rankings
Rankings
601,806
World Rank
647
Country Rank
46
University
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Génie Climatique | Séchage | Energétiqu
Génie Climatique | Séchage | Energétiqu
H-Index Metrics
-
H-Index18
-
i10 Index24
-
Citation Counts1,257
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* Total H Index Rankings
Rankings
676,718
World Rank
853
Country Rank
4
University
Ranking Based On Selection:
10
* Total H Index Rankings
Rankings
697,138
World Rank
912
Country Rank
3
University
Ranking Based On Selection:
11
Engineering & Technology / Environmental Science & Engineering
Génie de l'environnement | traitement des eaux et des sols pollué
Génie de l'environnement | traitement des eaux et des sols pollué
H-Index Metrics
-
H-Index15
-
i10 Index18
-
Citation Counts666
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* Total H Index Rankings
Rankings
700,992
World Rank
922
Country Rank
25
University
Ranking Based On Selection:
12
Engineering & Technology / Environmental Science & Engineering
Génie de l'Environnement-Génie des Procédé
Génie de l'Environnement-Génie des Procédé
H-Index Metrics
-
H-Index15
-
i10 Index23
-
Citation Counts1,093
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* Total H Index Rankings
Rankings
762,045
World Rank
1,109
Country Rank
75
University
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
769,993
World Rank
1,133
Country Rank
17
University
Ranking Based On Selection:
14
Engineering & Technology / Environmental Science & Engineering
Génie de l'environnement | traitement des eaux | valorisation de déchet
Génie de l'environnement | traitement des eaux | valorisation de déchet
H-Index Metrics
-
H-Index14
-
i10 Index20
-
Citation Counts1,057
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* Total H Index Rankings
Rankings
795,932
World Rank
1,214
Country Rank
2
University
Ranking Based On Selection:
15
Engineering & Technology / Environmental Science & Engineering
Dams and Rivers structures | Climate Change | Water Resources Management | River Flow Measurment
Dams and Rivers structures | Climate Change | Water Resources Management | River Flow Measurment
H-Index Metrics
-
H-Index13
-
i10 Index17
-
Citation Counts732
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* Total H Index Rankings
Rankings
911,645
World Rank
1,614
Country Rank
106
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
940,074
World Rank
1,714
Country Rank
14
University
Ranking Based On Selection:
17
Engineering & Technology / Environmental Science & Engineering
Chemistry | Biotechnology | photocatalysis | Electrochemistr
Chemistry | Biotechnology | photocatalysis | Electrochemistr
H-Index Metrics
-
H-Index11
-
i10 Index11
-
Citation Counts531
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* Total H Index Rankings
Rankings
947,793
World Rank
1,757
Country Rank
10
University
Ranking Based On Selection:
18
Engineering & Technology / Environmental Science & Engineering
environnement | procédés de traitement | matériaux | contaminants | science des aliment
environnement | procédés de traitement | matériaux | contaminants | science des aliment
H-Index Metrics
-
H-Index11
-
i10 Index13
-
Citation Counts665
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* Total H Index Rankings
Rankings
981,491
World Rank
1,926
Country Rank
25
University
Ranking Based On Selection:
19
* Total H Index Rankings
Rankings
992,696
World Rank
1,990
Country Rank
9
University
Ranking Based On Selection:
20
Engineering & Technology / Environmental Science & Engineering
Environnements Informatiques d'Apprentissage Humain | Analyse des traces de navigation | Profil Apprenan
Environnements Informatiques d'Apprentissage Humain | Analyse des traces de navigation | Profil Apprenan
H-Index Metrics
-
H-Index11
-
i10 Index12
-
Citation Counts429
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* Total H Index Rankings
Rankings
1,002,362
World Rank
2,037
Country Rank
1
University
Ranking Based On Selection:
21
Engineering & Technology / Environmental Science & Engineering
Environmental Engineering | Environmental Chemistr
Environmental Engineering | Environmental Chemistr
H-Index Metrics
-
H-Index10
-
i10 Index11
-
Citation Counts756
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* Total H Index Rankings
Rankings
1,002,789
World Rank
2,038
Country Rank
14
University
Ranking Based On Selection:
22
Engineering & Technology / Environmental Science & Engineering
Water management | water quality and pollution | nitrogen cycl
Water management | water quality and pollution | nitrogen cycl
H-Index Metrics
-
H-Index10
-
i10 Index11
-
Citation Counts656
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* Total H Index Rankings
Rankings
1,052,235
World Rank
2,257
Country Rank
104
University
Ranking Based On Selection:
23
Engineering & Technology / Environmental Science & Engineering
Environmental Science-Engineering-Materials Science-Chemical Engineering-Multidisciplinary-Chemistry -Energy Computer -Scienc
Environmental Science-Engineering-Materials Science-Chemical Engineering-Multidisciplinary-Chemistry -Energy Computer -Scienc
H-Index Metrics
-
H-Index10
-
i10 Index11
-
Citation Counts679
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* Total H Index Rankings
Rankings
1,079,199
World Rank
2,430
Country Rank
53
University
Ranking Based On Selection:
24
Engineering & Technology / Environmental Science & Engineering
Gestion des eaux au Sahara et au Sahel | traitement des bourbiers pétroliers | pollution hydrocarbure
Gestion des eaux au Sahara et au Sahel | traitement des bourbiers pétroliers | pollution hydrocarbure
H-Index Metrics
-
H-Index10
-
i10 Index10
-
Citation Counts391
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* Total H Index Rankings
Rankings
1,148,556
World Rank
2,777
Country Rank
64
University
Ranking Based On Selection:
25
Engineering & Technology / Environmental Science & Engineering
Environnement | Traitement des eaux | Adsorption | Matériaux Inorganique
Environnement | Traitement des eaux | Adsorption | Matériaux Inorganique
H-Index Metrics
-
H-Index9
-
i10 Index8
-
Citation Counts278
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Premium Data
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