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North America Scientist and University Rankings 2026
North America Engineering & Technology 717 Scientists Subject Rankings
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
800
World Rank
287
Country Rank
4
University
Ranking Based On Selection:
1
Engineering & Technology / Energy Engineering
solar cells | memory | semiconductor | organic electronics | organic photovoltaic
solar cells | memory | semiconductor | organic electronics | organic photovoltaic
H-Index Metrics
-
H-Index196
-
i10 Index515
-
Citation Counts167,843
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* Total H Index Rankings
Rankings
1,022
World Rank
384
Country Rank
4
University
Ranking Based On Selection:
2
Engineering & Technology / Energy Engineering
batteries | fuel cells | materials chemistry | synthesis | nanomaterial
batteries | fuel cells | materials chemistry | synthesis | nanomaterial
H-Index Metrics
-
H-Index182
-
i10 Index995
-
Citation Counts141,099
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* Total H Index Rankings
Rankings
3,220
World Rank
1,406
Country Rank
10
University
Ranking Based On Selection:
3
Engineering & Technology / Energy Engineering
Electron Microscopy | Tomography | Renewable Energy | Complex Oxides | Ptychograph
Electron Microscopy | Tomography | Renewable Energy | Complex Oxides | Ptychograph
H-Index Metrics
-
H-Index136
-
i10 Index445
-
Citation Counts84,096
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* Total H Index Rankings
Rankings
4,790
World Rank
2,136
Country Rank
1
University
Ranking Based On Selection:
4
* Total H Index Rankings
Rankings
4,835
World Rank
2,155
Country Rank
3
University
Ranking Based On Selection:
5
Engineering & Technology / Energy Engineering
Electrochemical Engineering | Polymer Electrolytes | Fuel cells | Hydrogen | Electrocatalysi
Electrochemical Engineering | Polymer Electrolytes | Fuel cells | Hydrogen | Electrocatalysi
H-Index Metrics
-
H-Index123
-
i10 Index341
-
Citation Counts54,129
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* Total H Index Rankings
Rankings
6,223
World Rank
228
Country Rank
40
University
Ranking Based On Selection:
6
Engineering & Technology / Energy Engineering
energy | fluids | CO2 conversion | CO2 capture | electrochemical system
energy | fluids | CO2 conversion | CO2 capture | electrochemical system
H-Index Metrics
-
H-Index115
-
i10 Index312
-
Citation Counts51,889
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* Total H Index Rankings
Rankings
12,800
World Rank
5,543
Country Rank
4
University
Ranking Based On Selection:
7
Engineering & Technology / Energy Engineering
photovoltaics | open hardware | 3D printing | recycling | agrivoltaic
photovoltaics | open hardware | 3D printing | recycling | agrivoltaic
H-Index Metrics
-
H-Index95
-
i10 Index442
-
Citation Counts38,072
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* Total H Index Rankings
Rankings
12,813
World Rank
5,548
Country Rank
6
University
Ranking Based On Selection:
8
Engineering & Technology / Energy Engineering
Solar energy conversion | Terahertz spectroscopy | Multiple Exciton Generation | Chiralit
Solar energy conversion | Terahertz spectroscopy | Multiple Exciton Generation | Chiralit
H-Index Metrics
-
H-Index95
-
i10 Index212
-
Citation Counts44,246
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* Total H Index Rankings
Rankings
15,173
World Rank
6,532
Country Rank
38
University
Ranking Based On Selection:
9
Engineering & Technology / Energy Engineering
Process Systems Engineering | Multiparametric programming & control | Energy systems | process intensification | sustainable smart
Process Systems Engineering | Multiparametric programming & control | Energy systems | process intensification | sustainable smart
H-Index Metrics
-
H-Index91
-
i10 Index436
-
Citation Counts32,872
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* Total H Index Rankings
Rankings
15,634
World Rank
6,711
Country Rank
66
University
Ranking Based On Selection:
10
Engineering & Technology / Energy Engineering
Si and WBG power semiconductor | WBG power electronics | smart grid | renewable energy system
Si and WBG power semiconductor | WBG power electronics | smart grid | renewable energy system
H-Index Metrics
-
H-Index90
-
i10 Index447
-
Citation Counts39,196
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* Total H Index Rankings
Rankings
17,686
World Rank
730
Country Rank
26
University
Ranking Based On Selection:
11
Engineering & Technology / Energy Engineering
Power systems | smart grids | microgrids | active distribution networks | E
Power systems | smart grids | microgrids | active distribution networks | E
H-Index Metrics
-
H-Index87
-
i10 Index240
-
Citation Counts38,152
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* Total H Index Rankings
Rankings
18,162
World Rank
7,777
Country Rank
315
University
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
18,474
World Rank
7,874
Country Rank
134
University
Ranking Based On Selection:
13
Engineering & Technology / Energy Engineering
Solar Energy | Photosynthesis | GPCRs | Catalysis | Alloster
Solar Energy | Photosynthesis | GPCRs | Catalysis | Alloster
H-Index Metrics
-
H-Index86
-
i10 Index340
-
Citation Counts25,515
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* Total H Index Rankings
Rankings
18,564
World Rank
7,903
Country Rank
320
University
Ranking Based On Selection:
14
Engineering & Technology / Energy Engineering
Subsurface flow | Reservoir simulation | Optimization | Upscaling | Energy system
Subsurface flow | Reservoir simulation | Optimization | Upscaling | Energy system
H-Index Metrics
-
H-Index86
-
i10 Index229
-
Citation Counts24,905
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* Total H Index Rankings
Rankings
21,093
World Rank
8,904
Country Rank
19
University
Ranking Based On Selection:
15
* Total H Index Rankings
Rankings
23,072
World Rank
9,643
Country Rank
73
University
Ranking Based On Selection:
16
Engineering & Technology / Energy Engineering
Alternative energy | nano-scaled catalyst | electron transfer | mechanism of organic | biological and inorganic reaction
Alternative energy | nano-scaled catalyst | electron transfer | mechanism of organic | biological and inorganic reaction
H-Index Metrics
-
H-Index81
-
i10 Index299
-
Citation Counts23,997
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* Total H Index Rankings
Rankings
23,690
World Rank
990
Country Rank
112
University
Ranking Based On Selection:
17
Engineering & Technology / Energy Engineering
energy storage and conversion | hydrogen and electrolysis | water treatment | electrochemistry | chemical engineerin
energy storage and conversion | hydrogen and electrolysis | water treatment | electrochemistry | chemical engineerin
H-Index Metrics
-
H-Index80
-
i10 Index256
-
Citation Counts31,269
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* Total H Index Rankings
Rankings
24,532
World Rank
10,224
Country Rank
377
University
Ranking Based On Selection:
18
Engineering & Technology / Energy Engineering
transport in porous media | geological storage of carbon dioxide and hydrogen | enhanced recover
transport in porous media | geological storage of carbon dioxide and hydrogen | enhanced recover
H-Index Metrics
-
H-Index79
-
i10 Index278
-
Citation Counts20,488
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* Total H Index Rankings
Rankings
25,422
World Rank
10,570
Country Rank
10
University
Ranking Based On Selection:
19
Engineering & Technology / Energy Engineering
Power and Energy Systems | Smart Grid Applications | Electric Machines and Drives | Computationa
Power and Energy Systems | Smart Grid Applications | Electric Machines and Drives | Computationa
H-Index Metrics
-
H-Index78
-
i10 Index585
-
Citation Counts27,461
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* Total H Index Rankings
Rankings
25,587
World Rank
10,619
Country Rank
11
University
Ranking Based On Selection:
20
* Total H Index Rankings
Rankings
26,503
World Rank
10,974
Country Rank
233
University
Ranking Based On Selection:
21
Engineering & Technology / Energy Engineering
life cycle assessment | sustainability and carbon neutrality | mobility | renewable energy | foods system
life cycle assessment | sustainability and carbon neutrality | mobility | renewable energy | foods system
H-Index Metrics
-
H-Index77
-
i10 Index195
-
Citation Counts23,279
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* Total H Index Rankings
Rankings
30,281
World Rank
1,284
Country Rank
146
University
Ranking Based On Selection:
22
Engineering & Technology / Energy Engineering
Energy materials | Nanostructured materials | Electrochemistry | Electrocatalysis | Photocatalysi
Energy materials | Nanostructured materials | Electrochemistry | Electrocatalysis | Photocatalysi
H-Index Metrics
-
H-Index74
-
i10 Index173
-
Citation Counts17,778
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* Total H Index Rankings
Rankings
31,274
World Rank
12,808
Country Rank
259
University
Ranking Based On Selection:
23
* Total H Index Rankings
Rankings
32,696
World Rank
13,306
Country Rank
98
University
Ranking Based On Selection:
24
Engineering & Technology / Energy Engineering
Perovskites | Physical Vapor Deposition | Optoelectronics | Materials Characterizatio
Perovskites | Physical Vapor Deposition | Optoelectronics | Materials Characterizatio
H-Index Metrics
-
H-Index72
-
i10 Index119
-
Citation Counts43,964
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* Total H Index Rankings
Rankings
33,177
World Rank
13,448
Country Rank
455
University
Ranking Based On Selection:
25
Engineering & Technology / Energy Engineering
Reservoir simulation | carbon dioxide storage | flow in porous media | multiscale simulatio
Reservoir simulation | carbon dioxide storage | flow in porous media | multiscale simulatio
H-Index Metrics
-
H-Index72
-
i10 Index233
-
Citation Counts19,031
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