Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 869 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
Egypt
Sabry Shaheen
Geochemistry of Trace Elements
Soil and water pollution by toxic metals
Remediation of toxic metals contaminated soils and waters
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,139
18,978
0.857
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Egypt
Mahmoud Dawood
Aquaculture and Fisheries
Animal Science
Environmental Science
WEF Nexus
Sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,598
18,239
0.931
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Egypt
Ashraf M Zenkour
Applied Mathematics
Continuum Mechanics
Theory of Elasticity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,249
11,313
0.588
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Egypt
Fadl A Essa
Desalination
Water-Energy Nexus
Solar Energy Applications
Nanomaterials' Applications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,145
12,180
0.927
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Egypt
Swellam W Sharshir
Desalination
Evaporation
Nanofluid Applications
Heat Transfer
Solar Energy Applications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,487
11,550
0.925
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Egypt
Zakaria Omara
Desalination - Renewable energy systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,492
9,811
0.854
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Egypt
Ragab A El Sehiemy
Artificial Intelligence
Microgrids
Hybrid Power systems
Renewable Energy Sources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,471
8,222
0.868
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Egypt
Hassan El Ramady
Nano selenium
Nano nutrients
nanofibers
Plant nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,417
6,140
0.828
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Egypt
Wagdy M Eldehna
Pharmaceutical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,826
5,925
0.868
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Egypt
Maged El Kemary
Nanochemistry - Photochemistry- Sensors - Wearable devices
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,599
4,959
0.751
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Egypt
Mustafa Shukry
Physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,747
4,417
0.930
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Egypt
Khaled AA Abdelaal
Natural Sciences
Agricultural Botany
Plant physiology
plant Anatomy
Biotic and Abiotic stress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,698
4,305
0.916
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Egypt
Ebrahem M Eid
Plant Population Ecology
Wetland Ecology
Ecological Modeling
Carbon Sequestration
Phytoremediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,437
3,743
0.844
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Egypt
Ahmed A Tayel
Food biotechnology
Food Safety
Natural Products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,314
2,723
0.631
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Egypt
Yaser M Hafez
Plant Pathology
Reactive oxygen species
antioxidants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,194
3,500
0.835
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Egypt
Hamdy K Al Moniar
Soft Computing
Image Processing
Solar Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,077
1,698
0.416
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Egypt
Ibrahim Elmehasseb
Inorganic chemistry
Nanochemistry
Water treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,880
2,780
0.716
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Egypt
Mohammed Sobhy
Applied Mathematics
Solid Mechanics
Nanostructures
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,783
2,397
0.634
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Egypt
Ahmed Ali Saleh
Agriculture
Animal science
Poultry production
Nutrition
biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,468
2,752
0.794
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Egypt
Tarek Alshaal
Plant nutrition
soil microbiology
soil ecology
environmental pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,460
2,820
0.815
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Egypt
Tarek Amin Ebeid
Animal and poultry physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,438
2,546
0.741
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Egypt
Abdelhamid El Shaer
semiconductors
photovoltaic
optoelectronics
2D-Materials
nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,388
1,443
0.426
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Egypt
Mohammed Abu El Magd El Ghannam
Anatomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,386
2,831
0.836
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Egypt
Maged Gomaa Hemida
Virology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,318
1,931
0.582
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Egypt
Kamel Rizq Shoueir
Photocatalysis
Nanofibers
Green chemistry
Water treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,238
3,042
0.939
* Total Citation Counts Rankings
Rankings
35,961
Egypt
44
1
Ranking Based On Selection: 1
Sabry Shaheen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,139
18,978
0.857
Geochemistry of Trace Elements
Soil and water pollution by toxic metals
Remediation of toxic metals contaminated soils and waters
* Total Citation Counts Rankings
Rankings
42,635
Egypt
50
2
Ranking Based On Selection: 2
Mahmoud Dawood
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,598
18,239
0.931
Aquaculture and Fisheries
Animal Science
Environmental Science
WEF Nexus
Sustainability
* Total Citation Counts Rankings
Rankings
43,652
Egypt
54
3
Ranking Based On Selection: 3
Ashraf M Zenkour
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,249
11,313
0.588
Applied Mathematics
Continuum Mechanics
Theory of Elasticity
* Total Citation Counts Rankings
Rankings
72,487
Egypt
94
4
Ranking Based On Selection: 4
Fadl A Essa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,145
12,180
0.927
Desalination
Water-Energy Nexus
Solar Energy Applications
Nanomaterials' Applications
* Total Citation Counts Rankings
Rankings
77,223
Egypt
102
5
Ranking Based On Selection: 5
Swellam W Sharshir
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,487
11,550
0.925
Desalination
Evaporation
Nanofluid Applications
Heat Transfer
Solar Energy Applications
* Total Citation Counts Rankings
Rankings
85,386
Egypt
115
6
Ranking Based On Selection: 6
Zakaria Omara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,492
9,811
0.854
* Total Citation Counts Rankings
Rankings
106,974
Egypt
150
7
Ranking Based On Selection: 7
Ragab A El Sehiemy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,471
8,222
0.868
Artificial Intelligence
Microgrids
Hybrid Power systems
Renewable Energy Sources
* Total Citation Counts Rankings
Rankings
140,355
Egypt
226
8
Ranking Based On Selection: 8
Hassan El Ramady
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,417
6,140
0.828
* Total Citation Counts Rankings
Rankings
153,161
Egypt
253
9
Ranking Based On Selection: 9
Wagdy M Eldehna
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,826
5,925
0.868
* Total Citation Counts Rankings
Rankings
158,557
Egypt
263
10
Ranking Based On Selection: 10
Maged El Kemary
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,599
4,959
0.751
Nanochemistry - Photochemistry- Sensors - Wearable devices
* Total Citation Counts Rankings
Rankings
219,508
Egypt
440
11
Ranking Based On Selection: 11
Mustafa Shukry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,747
4,417
0.930
* Total Citation Counts Rankings
Rankings
221,632
Egypt
449
12
Ranking Based On Selection: 12
Khaled AA Abdelaal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,698
4,305
0.916
Natural Sciences
Agricultural Botany
Plant physiology
plant Anatomy
Biotic and Abiotic stress
* Total Citation Counts Rankings
Rankings
233,752
Egypt
491
13
Ranking Based On Selection: 13
Ebrahem M Eid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,437
3,743
0.844
Plant Population Ecology
Wetland Ecology
Ecological Modeling
Carbon Sequestration
Phytoremediation
* Total Citation Counts Rankings
Rankings
239,938
Egypt
506
14
Ranking Based On Selection: 14
Ahmed A Tayel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,314
2,723
0.631
Food biotechnology
Food Safety
Natural Products
* Total Citation Counts Rankings
Rankings
246,172
Egypt
521
15
Ranking Based On Selection: 15
Yaser M Hafez
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,194
3,500
0.835
Plant Pathology
Reactive oxygen species
antioxidants
* Total Citation Counts Rankings
Rankings
252,789
Egypt
551
16
Ranking Based On Selection: 16
Hamdy K Al Moniar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,077
1,698
0.416
* Total Citation Counts Rankings
Rankings
264,105
Egypt
604
17
Ranking Based On Selection: 17
Ibrahim Elmehasseb
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,880
2,780
0.716
Inorganic chemistry
Nanochemistry
Water treatment
* Total Citation Counts Rankings
Rankings
269,940
Egypt
629
18
Ranking Based On Selection: 18
Mohammed Sobhy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,783
2,397
0.634
Applied Mathematics
Solid Mechanics
Nanostructures
* Total Citation Counts Rankings
Rankings
290,986
Egypt
699
19
Ranking Based On Selection: 19
Ahmed Ali Saleh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,468
2,752
0.794
Agriculture
Animal science
Poultry production
Nutrition
biotechnology
* Total Citation Counts Rankings
Rankings
291,589
Egypt
704
20
Ranking Based On Selection: 20
Tarek Alshaal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,460
2,820
0.815
Plant nutrition
soil microbiology
soil ecology
environmental pollution
* Total Citation Counts Rankings
Rankings
293,251
Egypt
712
21
Ranking Based On Selection: 21
Tarek Amin Ebeid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,438
2,546
0.741
* Total Citation Counts Rankings
Rankings
296,949
Egypt
723
22
Ranking Based On Selection: 22
Abdelhamid El Shaer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,388
1,443
0.426
semiconductors
photovoltaic
optoelectronics
2D-Materials
nanotechnology
* Total Citation Counts Rankings
Rankings
297,073
Egypt
725
23
Ranking Based On Selection: 23
Mohammed Abu El Magd El Ghannam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,386
2,831
0.836
* Total Citation Counts Rankings
Rankings
302,190
Egypt
741
24
Ranking Based On Selection: 24
Maged Gomaa Hemida
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,318
1,931
0.582
* Total Citation Counts Rankings
Rankings
308,386
Egypt
774
25
Ranking Based On Selection: 25
Kamel Rizq Shoueir
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,238
3,042
0.939
Photocatalysis
Nanofibers
Green chemistry
Water treatment