Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 442 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
educational Psychology ( Measurement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,467
11,145
0.828
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Medical Microbaiology and Immnuolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,941
1,534
0.172
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Surface Chemistry
Materials Chemistry
Catalysis
Catalyst Characterizatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,721
1,891
0.245
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Analytical Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,257
3,069
0.584
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Tribology
Engine Tribology
Automotive Engineering
Nanolubricants
Solid Lubricant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,167
4,405
0.853
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Computational Chemistry
Drug Discovery
Materials Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,267
3,589
0.841
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Power systems
Grid Modernization
Critical Infrastructure Interdependence
Transportation Electrificatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,262
2,358
0.553
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Patholog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,911
1,418
0.363
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Patholog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,897
722
0.185
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Computer Networks
Parallel Processing
Artificial Intelligence
Algorithm design and analysis with Applications for differe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,727
2,856
0.766
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,706
1,948
0.526
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Organic Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,692
1,984
0.537
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,268
1,532
0.469
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Natural Products Chemistry [Extraction
Isolation
Structural Elucidation
and Biological Activities of Natural Products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,238
1,702
0.526
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Solar water desalination
Renewable energy
Energy efficiency
Nanofluid applications
HVA
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,197
2,733
0.855
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Digital signal processing
optical Communications and Computer network and securit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,189
2,993
0.939
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Mass Transfer Operations
Adsorption Engineering
Effluent Treatment
Adsorption Modelin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,984
434
0.145
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Nanotechnolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,736
521
0.190
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Genetic Algorithm
Software Testing
Information Retrieval
Particle Swarm Optimization
Software Developmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,715
547
0.201
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Study the mineralogy and geochemistry of precious and base metal sulfide mineralizations
the petrology of the host rocks in ad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,548
1,270
0.498
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Vehicle Dynamics
Energy Harvesting
Nonlinear structures
Vibration and Control
Nano-Tribology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,488
2,156
0.867
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Pharmaceutical and biomedical analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,480
2,066
0.833
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,433
830
0.341
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Thin Films
Semiconductors
Physical properties
solar cell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,403
590
0.246
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Pharmacology and Toxicolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,312
1,310
0.567
* Total Citation Counts Rankings
Rankings
73,402
97
1
Ranking Based On Selection: 1
Mohamed Ibrahim Mohamed
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,467
11,145
0.828
educational Psychology ( Measurement
* Total Citation Counts Rankings
Rankings
119,070
183
2
Ranking Based On Selection: 2
Abdel Hamid M
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,941
1,534
0.172
Medical Microbaiology and Immnuolog
* Total Citation Counts Rankings
Rankings
139,975
232
3
Ranking Based On Selection: 3
Mohamed Ibrahim Zaki
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,721
1,891
0.245
Surface Chemistry
Materials Chemistry
Catalysis
Catalyst Characterizatio
* Total Citation Counts Rankings
Rankings
206,963
407
4
Ranking Based On Selection: 4
Mohamed Besis Saleh
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,257
3,069
0.584
* Total Citation Counts Rankings
Rankings
210,462
428
5
Ranking Based On Selection: 5
Mohamed Kamal Ahmed Ali
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,167
4,405
0.853
Tribology
Engine Tribology
Automotive Engineering
Nanolubricants
Solid Lubricant
* Total Citation Counts Rankings
Rankings
251,805
559
6
Ranking Based On Selection: 6
Mahmoud A. A. Ibrahim
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,267
3,589
0.841
Computational Chemistry
Drug Discovery
Materials Scienc
* Total Citation Counts Rankings
Rankings
252,103
563
7
Ranking Based On Selection: 7
Ahmed Ali A Mohamed El Tallawy
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,262
2,358
0.553
Power systems
Grid Modernization
Critical Infrastructure Interdependence
Transportation Electrificatio
* Total Citation Counts Rankings
Rankings
272,366
650
8
Ranking Based On Selection: 8
Mariana Gayyed
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,911
1,418
0.363
* Total Citation Counts Rankings
Rankings
273,176
655
9
Ranking Based On Selection: 9
Dalia M Abd El Rehim
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,897
722
0.185
* Total Citation Counts Rankings
Rankings
283,921
690
10
Ranking Based On Selection: 10
Ahmed AA Radwan
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,727
2,856
0.766
Computer Networks
Parallel Processing
Artificial Intelligence
Algorithm design and analysis with Applications for differe
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
285,377
694
11
Ranking Based On Selection: 11
Mohamed Abdel Aziz
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,706
1,948
0.526
* Total Citation Counts Rankings
Rankings
286,262
698
12
Ranking Based On Selection: 12
Ashraf A Aly
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,692
1,984
0.537
* Total Citation Counts Rankings
Rankings
317,542
841
13
Ranking Based On Selection: 13
Safwat A Mahmoud
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,268
1,532
0.469
* Total Citation Counts Rankings
Rankings
319,935
851
14
Ranking Based On Selection: 14
Ahmed A Mahmoud
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,238
1,702
0.526
Natural Products Chemistry [Extraction
Isolation
Structural Elucidation
and Biological Activities of Natural Products
* Total Citation Counts Rankings
Rankings
323,323
867
15
Ranking Based On Selection: 15
Khaled Harbi
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,197
2,733
0.855
Solar water desalination
Renewable energy
Energy efficiency
Nanofluid applications
HVA
* Total Citation Counts Rankings
Rankings
324,018
872
16
Ranking Based On Selection: 16
Ashraf AM Khalaf
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,189
2,993
0.939
Digital signal processing
optical Communications and Computer network and securit
* Total Citation Counts Rankings
Rankings
342,103
959
17
Ranking Based On Selection: 17
Mohammad S El Geundi
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,984
434
0.145
Mass Transfer Operations
Adsorption Engineering
Effluent Treatment
Adsorption Modelin
* Total Citation Counts Rankings
Rankings
366,891
1,064
18
Ranking Based On Selection: 18
Mahmoud Abdel Halim
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,736
521
0.190
* Total Citation Counts Rankings
Rankings
369,072
1,073
19
Ranking Based On Selection: 19
Moheb Ramzy Girgis
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,715
547
0.201
Genetic Algorithm
Software Testing
Information Retrieval
Particle Swarm Optimization
Software Developmen
* Total Citation Counts Rankings
Rankings
387,726
1,179
20
Ranking Based On Selection: 20
Hassan Mohamed Helmy Hassan
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,548
1,270
0.498
Study the mineralogy and geochemistry of precious and base metal sulfide mineralizations
the petrology of the host rocks in ad
* Total Citation Counts Rankings
Rankings
394,689
1,207
21
Ranking Based On Selection: 21
Mohamed AA Abdelkareem
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,488
2,156
0.867
Vehicle Dynamics
Energy Harvesting
Nonlinear structures
Vibration and Control
Nano-Tribology
* Total Citation Counts Rankings
Rankings
395,633
1,212
22
Ranking Based On Selection: 22
Sayed M Derayea
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,480
2,066
0.833
Pharmaceutical and biomedical analysi
* Total Citation Counts Rankings
Rankings
401,559
1,244
23
Ranking Based On Selection: 23
Kamal Usef Sadek
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,433
830
0.341
* Total Citation Counts Rankings
Rankings
405,219
1,257
24
Ranking Based On Selection: 24
Adel Ashour Mohamed
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,403
590
0.246
Thin Films
Semiconductors
Physical properties
solar cell
* Total Citation Counts Rankings
Rankings
416,906
1,329
25
Ranking Based On Selection: 25
Gehan H Heeba
Minia University
Minya, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,312
1,310
0.567
Pharmacology and Toxicolog