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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 02, 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].
* Total H Index Rankings
Rankings
62,878
World Rank
17
Country Rank
3
University
Ranking Based On Selection:
1
Engineering & Technology / Electrical & Electronic Engineering
Smart grid | renewables | Power electronics | power system
Smart grid | renewables | Power electronics | power system
H-Index Metrics
-
H-Index58
-
i10 Index147
-
Citation Counts17,414
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* Total H Index Rankings
Rankings
81,531
World Rank
25
Country Rank
1
University
Ranking Based On Selection:
2
Engineering & Technology / Mechanical Engineering
Applied Mechanics | Mechanics of Materials | Geomechanics | Nanomechanic
Applied Mechanics | Mechanics of Materials | Geomechanics | Nanomechanic
H-Index Metrics
-
H-Index53
-
i10 Index150
-
Citation Counts9,052
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* Total H Index Rankings
Rankings
119,157
World Rank
32
Country Rank
5
University
Ranking Based On Selection:
3
Engineering & Technology / Earth Sciences
Geology | Geochemistry | Medical Geology | Isotope Hydrolog
Geology | Geochemistry | Medical Geology | Isotope Hydrolog
H-Index Metrics
-
H-Index45
-
i10 Index117
-
Citation Counts6,364
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* Total H Index Rankings
Rankings
123,609
World Rank
36
Country Rank
3
University
Ranking Based On Selection:
4
Engineering & Technology / Nanoscience and Nanotechnology
Nanomaterials | Solar Energy | water splitting | catalysis and photocatalysi
Nanomaterials | Solar Energy | water splitting | catalysis and photocatalysi
H-Index Metrics
-
H-Index45
-
i10 Index84
-
Citation Counts7,673
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* Total H Index Rankings
Rankings
125,121
World Rank
38
Country Rank
8
University
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
climate change | adaptation | groundwater | energy | agri-food system
climate change | adaptation | groundwater | energy | agri-food system
H-Index Metrics
-
H-Index44
-
i10 Index94
-
Citation Counts17,204
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* Total H Index Rankings
Rankings
153,512
World Rank
49
Country Rank
4
University
Ranking Based On Selection:
6
Engineering & Technology / Energy Engineering
Solar energy conversion | Energy storage (supercapacitors) Nanotechnolog
Solar energy conversion | Energy storage (supercapacitors) Nanotechnolog
H-Index Metrics
-
H-Index41
-
i10 Index77
-
Citation Counts7,196
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* Total H Index Rankings
Rankings
154,688
World Rank
50
Country Rank
12
University
Ranking Based On Selection:
7
Engineering & Technology / Nanoscience and Nanotechnology
Physical Chemistry | Materials Chemistry | Drug Delivery | Water Purificatio
Physical Chemistry | Materials Chemistry | Drug Delivery | Water Purificatio
H-Index Metrics
-
H-Index40
-
i10 Index84
-
Citation Counts4,859
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* Total H Index Rankings
Rankings
156,820
World Rank
51
Country Rank
8
University
Ranking Based On Selection:
8
Engineering & Technology / Food Science and Engineering
Lipid chemistry | Antioxidants | Plant Bioactives | trans fat | Food Safet
Lipid chemistry | Antioxidants | Plant Bioactives | trans fat | Food Safet
H-Index Metrics
-
H-Index40
-
i10 Index66
-
Citation Counts4,975
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* Total H Index Rankings
Rankings
158,852
World Rank
53
Country Rank
9
University
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Climate change | water policy | food security | poverty | energ economic
Climate change | water policy | food security | poverty | energ economic
H-Index Metrics
-
H-Index40
-
i10 Index66
-
Citation Counts11,847
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* Total H Index Rankings
Rankings
159,935
World Rank
54
Country Rank
5
University
Ranking Based On Selection:
10
* Total H Index Rankings
Rankings
163,221
World Rank
56
Country Rank
2
University
Ranking Based On Selection:
11
Engineering & Technology / Electrical & Electronic Engineering
Wireless Communications | Communication Theory | 5G Wireless Communications | Wireless Power Transfe
Wireless Communications | Communication Theory | 5G Wireless Communications | Wireless Power Transfe
H-Index Metrics
-
H-Index39
-
i10 Index138
-
Citation Counts8,056
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* Total H Index Rankings
Rankings
168,072
World Rank
60
Country Rank
7
University
Ranking Based On Selection:
12
Engineering & Technology / Metallurgical & Materials Engineering
Polymer electrolytes | dye sensitized solar cells | solid state batteries | Nanostructured material
Polymer electrolytes | dye sensitized solar cells | solid state batteries | Nanostructured material
H-Index Metrics
-
H-Index39
-
i10 Index112
-
Citation Counts6,282
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* Total H Index Rankings
Rankings
171,912
World Rank
61
Country Rank
9
University
Ranking Based On Selection:
13
Engineering & Technology / Environmental Science & Engineering
Environmental Science | Occupational safety | Public healt
Environmental Science | Occupational safety | Public healt
H-Index Metrics
-
H-Index38
-
i10 Index47
-
Citation Counts6,923
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* Total H Index Rankings
Rankings
182,448
World Rank
64
Country Rank
12
University
Ranking Based On Selection:
14
* Total H Index Rankings
Rankings
193,123
World Rank
71
Country Rank
12
University
Ranking Based On Selection:
15
Engineering & Technology / Environmental Science & Engineering
Hydrology | Climate change impacts | Cryosphere | Water-Food Nexus | Climate Resilient System
Hydrology | Climate change impacts | Cryosphere | Water-Food Nexus | Climate Resilient System
H-Index Metrics
-
H-Index36
-
i10 Index57
-
Citation Counts8,029
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* Total H Index Rankings
Rankings
204,267
World Rank
76
Country Rank
14
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
228,629
World Rank
86
Country Rank
17
University
Ranking Based On Selection:
17
Engineering & Technology / Food Science and Engineering
food & water security | Africa | climate change | scalin
food & water security | Africa | climate change | scalin
H-Index Metrics
-
H-Index33
-
i10 Index55
-
Citation Counts6,448
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* Total H Index Rankings
Rankings
231,687
World Rank
90
Country Rank
18
University
Ranking Based On Selection:
18
* Total H Index Rankings
Rankings
236,031
World Rank
93
Country Rank
1
University
Ranking Based On Selection:
19
Engineering & Technology / Environmental Science & Engineering
Water Resource | Civil Engineering | Conflict Resolution | Project Management | IWR
Water Resource | Civil Engineering | Conflict Resolution | Project Management | IWR
H-Index Metrics
-
H-Index33
-
i10 Index137
-
Citation Counts4,775
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* Total H Index Rankings
Rankings
243,138
World Rank
98
Country Rank
1
University
Ranking Based On Selection:
20
Engineering & Technology / Metallurgical & Materials Engineering
Materials Chemistry | Advanced Materials | Drug Delivery and Water Purification
Materials Chemistry | Advanced Materials | Drug Delivery and Water Purification
H-Index Metrics
-
H-Index32
-
i10 Index52
-
Citation Counts2,665
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* Total H Index Rankings
Rankings
246,631
World Rank
100
Country Rank
17
University
Ranking Based On Selection:
21
* Total H Index Rankings
Rankings
258,230
World Rank
106
Country Rank
2
University
Ranking Based On Selection:
22
Engineering & Technology / Civil Engineering
Masonry structures | Seismic retrofit | Pervious concret
Masonry structures | Seismic retrofit | Pervious concret
H-Index Metrics
-
H-Index31
-
i10 Index66
-
Citation Counts2,935
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* Total H Index Rankings
Rankings
284,603
World Rank
116
Country Rank
4
University
Ranking Based On Selection:
23
Engineering & Technology / Environmental Science & Engineering
Environmental Engineering | Environmental Management | Ecological Engineering | Civil Engineerin
Environmental Engineering | Environmental Management | Ecological Engineering | Civil Engineerin
H-Index Metrics
-
H-Index30
-
i10 Index49
-
Citation Counts4,202
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* Total H Index Rankings
Rankings
294,789
World Rank
121
Country Rank
22
University
Ranking Based On Selection:
24
Engineering & Technology / Nanoscience and Nanotechnology
Nanomaterials | Solid Oxide Fuel Cell | Energy & Environmental Engineering | CO2 adsorption | Wate
Nanomaterials | Solid Oxide Fuel Cell | Energy & Environmental Engineering | CO2 adsorption | Wate
H-Index Metrics
-
H-Index29
-
i10 Index43
-
Citation Counts2,535
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Premium Data
* Total H Index Rankings
Rankings
296,600
World Rank
122
Country Rank
21
University
Ranking Based On Selection:
25
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