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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 Dec 30, 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 (1.131.699) 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
50,184
World Rank
17
Country Rank
12
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
Waste management | Water resources management | Air pollution control | Climate change and sustainable development | Environmental
Waste management | Water resources management | Air pollution control | Climate change and sustainable development | Environmental
H-Index Metrics
-
H-Index63
-
i10 Index207
-
Citation Counts13,478
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* Total H Index Rankings
Rankings
59,428
World Rank
22
Country Rank
16
University
Ranking Based On Selection:
2
Engineering & Technology / Mechanical Engineering
Atmospheric Aerosols | Air Pollution | Electronic Cigarettes | Tobacco Control | Waterpipe Tobacco Smok
Atmospheric Aerosols | Air Pollution | Electronic Cigarettes | Tobacco Control | Waterpipe Tobacco Smok
H-Index Metrics
-
H-Index59
-
i10 Index132
-
Citation Counts12,502
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* Total H Index Rankings
Rankings
64,969
World Rank
23
Country Rank
1
University
Ranking Based On Selection:
3
Engineering & Technology / Civil Engineering
Sustainable Construction/Structural Materials | waste utilisation | novel materials | environmenta
Sustainable Construction/Structural Materials | waste utilisation | novel materials | environmenta
H-Index Metrics
-
H-Index57
-
i10 Index218
-
Citation Counts15,843
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* Total H Index Rankings
Rankings
76,179
World Rank
27
Country Rank
18
University
Ranking Based On Selection:
4
Engineering & Technology / Electrical & Electronic Engineering
Optimization Methods | Power System Planning | Robust Optimization | State Estimatio
Optimization Methods | Power System Planning | Robust Optimization | State Estimatio
H-Index Metrics
-
H-Index54
-
i10 Index115
-
Citation Counts11,555
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* Total H Index Rankings
Rankings
79,125
World Rank
28
Country Rank
1
University
Ranking Based On Selection:
5
Engineering & Technology / Energy Engineering
Energy Harvesting | Heat Recovery | Renewable Energy | Green Hydrogen | Green to Gree
Energy Harvesting | Heat Recovery | Renewable Energy | Green Hydrogen | Green to Gree
H-Index Metrics
-
H-Index53
-
i10 Index129
-
Citation Counts10,616
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* Total H Index Rankings
Rankings
84,167
World Rank
30
Country Rank
20
University
Ranking Based On Selection:
6
* Total H Index Rankings
Rankings
92,519
World Rank
35
Country Rank
1
University
Ranking Based On Selection:
7
* Total H Index Rankings
Rankings
103,527
World Rank
39
Country Rank
26
University
Ranking Based On Selection:
8
Engineering & Technology / Mechanical Engineering
Sustainable air-conditioning | heat and moisture transport | bioheat modeling | thermal comfort | indoo
Sustainable air-conditioning | heat and moisture transport | bioheat modeling | thermal comfort | indoo
H-Index Metrics
-
H-Index48
-
i10 Index181
-
Citation Counts8,497
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* Total H Index Rankings
Rankings
108,688
World Rank
43
Country Rank
30
University
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Conservation of energy | thermal comfort and indoor air qualit
Conservation of energy | thermal comfort and indoor air qualit
H-Index Metrics
-
H-Index47
-
i10 Index167
-
Citation Counts7,310
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* Total H Index Rankings
Rankings
116,811
World Rank
45
Country Rank
3
University
Ranking Based On Selection:
10
Engineering & Technology / Computer Science
Image and Video Processing | Compression | Computer Vision | Deep Learning | Digital Signal Processin
Image and Video Processing | Compression | Computer Vision | Deep Learning | Digital Signal Processin
H-Index Metrics
-
H-Index46
-
i10 Index124
-
Citation Counts10,918
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* Total H Index Rankings
Rankings
118,905
World Rank
51
Country Rank
36
University
Ranking Based On Selection:
11
* Total H Index Rankings
Rankings
121,053
World Rank
54
Country Rank
38
University
Ranking Based On Selection:
12
Engineering & Technology / Nanoscience and Nanotechnology
Nanochemistry | Optical Sensing | Fluorescence Spectroscopy | Biophysical Chemistr
Nanochemistry | Optical Sensing | Fluorescence Spectroscopy | Biophysical Chemistr
H-Index Metrics
-
H-Index45
-
i10 Index111
-
Citation Counts6,557
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* Total H Index Rankings
Rankings
125,968
World Rank
57
Country Rank
3
University
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
138,361
World Rank
62
Country Rank
4
University
Ranking Based On Selection:
14
Engineering & Technology / Computer Science
Cybersecurity | Federated Machine Learning | Network and Service Management | Applied AI | IoT and Fo
Cybersecurity | Federated Machine Learning | Network and Service Management | Applied AI | IoT and Fo
H-Index Metrics
-
H-Index42
-
i10 Index111
-
Citation Counts7,927
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* Total H Index Rankings
Rankings
140,875
World Rank
64
Country Rank
2
University
Ranking Based On Selection:
15
Engineering & Technology / Energy Engineering
Renewable Energy - Energy Management - Underhood Aerothermal Management - Heat Exchangers - Heat Transfe
Renewable Energy - Energy Management - Underhood Aerothermal Management - Heat Exchangers - Heat Transfe
H-Index Metrics
-
H-Index42
-
i10 Index101
-
Citation Counts5,798
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* Total H Index Rankings
Rankings
151,295
World Rank
70
Country Rank
49
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
156,209
World Rank
74
Country Rank
53
University
Ranking Based On Selection:
17
Engineering & Technology / Electrical & Electronic Engineering
Robotics | Networking | Human Machine Interfacin
Robotics | Networking | Human Machine Interfacin
H-Index Metrics
-
H-Index40
-
i10 Index119
-
Citation Counts7,837
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* Total H Index Rankings
Rankings
156,831
World Rank
77
Country Rank
4
University
Ranking Based On Selection:
18
Engineering & Technology / Environmental Science & Engineering
environment | water treatment | medicinal plants | catalysis | Organometallics، waste managemen
environment | water treatment | medicinal plants | catalysis | Organometallics، waste managemen
H-Index Metrics
-
H-Index40
-
i10 Index99
-
Citation Counts4,627
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* Total H Index Rankings
Rankings
158,892
World Rank
79
Country Rank
1
University
Ranking Based On Selection:
19
Engineering & Technology / Computer Science
Internet of Things | Distributed Systems | Networking | Cyber-Physical Systems | Wireless Sensor Network
Internet of Things | Distributed Systems | Networking | Cyber-Physical Systems | Wireless Sensor Network
H-Index Metrics
-
H-Index40
-
i10 Index88
-
Citation Counts6,149
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* Total H Index Rankings
Rankings
160,862
World Rank
82
Country Rank
58
University
Ranking Based On Selection:
20
Engineering & Technology / Electrical & Electronic Engineering
Wireless communications | cellular technologies | mobile computing | computational biolog
Wireless communications | cellular technologies | mobile computing | computational biolog
H-Index Metrics
-
H-Index40
-
i10 Index135
-
Citation Counts6,287
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* Total H Index Rankings
Rankings
185,998
World Rank
96
Country Rank
7
University
Ranking Based On Selection:
21
Engineering & Technology / Electrical & Electronic Engineering
Nonlinear Control | Engineering Optimization | Energy Management | Homogenization | Multidisciplinar
Nonlinear Control | Engineering Optimization | Energy Management | Homogenization | Multidisciplinar
H-Index Metrics
-
H-Index37
-
i10 Index94
-
Citation Counts5,360
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* Total H Index Rankings
Rankings
190,317
World Rank
102
Country Rank
71
University
Ranking Based On Selection:
22
Engineering & Technology / Computer Science
Wireless Networking | Internet of Things | 5G | Vehicular Network
Wireless Networking | Internet of Things | 5G | Vehicular Network
H-Index Metrics
-
H-Index37
-
i10 Index116
-
Citation Counts5,086
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* Total H Index Rankings
Rankings
191,087
World Rank
103
Country Rank
72
University
Ranking Based On Selection:
23
Engineering & Technology / Computer Science
Computer Architecture | Cyber Security | AI/ML | Large scale data analytic
Computer Architecture | Cyber Security | AI/ML | Large scale data analytic
H-Index Metrics
-
H-Index37
-
i10 Index91
-
Citation Counts4,984
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* Total H Index Rankings
Rankings
192,960
World Rank
104
Country Rank
2
University
Ranking Based On Selection:
24
Engineering & Technology / Metallurgical & Materials Engineering
Superconductivity | Nano-Science and Composite Material
Superconductivity | Nano-Science and Composite Material
H-Index Metrics
-
H-Index36
-
i10 Index160
-
Citation Counts5,275
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* Total H Index Rankings
Rankings
199,088
World Rank
111
Country Rank
76
University
Ranking Based On Selection:
25
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