Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 616 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: 26
Thermofluids - Thermal Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,998
2,319
0.580
Get Full Access to Premium Data
* Total Citation Counts Rankings
Ranking Based On Selection: 27
Cloud computing security
Cloud Computing
Information Security
Cyber security
Multimedia Securit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,903
3,127
0.801
* Total Citation Counts Rankings
Ranking Based On Selection: 28
Nonlinear Dynamical Systems (both real and complex systems)
Stochastic systems
Nonlinear Differential Equations and Differen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,721
1,122
0.302
* Total Citation Counts Rankings
Ranking Based On Selection: 29
Plant Physiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,646
2,587
0.710
* Total Citation Counts Rankings
Ranking Based On Selection: 30
Biochemistry
Molecular Biology
Molecular Toxicology
Molecular Pharmacolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,475
2,776
0.799
* Total Citation Counts Rankings
Ranking Based On Selection: 31
HCV
HIV
HBV and HEV
Dendritic cells
Antimicrobial resistance mechanism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,439
1,867
0.543
* Total Citation Counts Rankings
Ranking Based On Selection: 32
Organic Chemistry
Synthetic Chemistry
Medicinal Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,436
2,535
0.738
* Total Citation Counts Rankings
Ranking Based On Selection: 33
Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,339
2,236
0.670
* Total Citation Counts Rankings
Ranking Based On Selection: 34
Cancer Drug Deliver
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,329
2,773
0.833
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
Ranking Based On Selection: 35
Animal Ecology
Genetic
Biodiversity Conservation
Birds parasitology
Reptile
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,241
1,536
0.474
* Total Citation Counts Rankings
Ranking Based On Selection: 36
Renewable Energy Harvesting
Hybrid Intelligent Transformers
Smart Grid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,175
2,862
0.901
* Total Citation Counts Rankings
Ranking Based On Selection: 37
Optimization
Power system operation
Forecasting
Microgrids
Integration of renewable energy in power system
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,141
2,635
0.839
* Total Citation Counts Rankings
Ranking Based On Selection: 38
Infectious Disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,101
3,041
0.981
* Total Citation Counts Rankings
Ranking Based On Selection: 39
Genetics
Molecular Biology
Genetic Engineering
regulation of gene expression by DNA methylation and natural product
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,050
2,749
0.901
* Total Citation Counts Rankings
Ranking Based On Selection: 40
Medical physics and radiation sciences and dosimetr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,023
2,920
0.966
* Total Citation Counts Rankings
Ranking Based On Selection: 41
Pure Mathematics
Integral equations
Computational Methods
Numerical Analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,013
2,463
0.817
* Total Citation Counts Rankings
Ranking Based On Selection: 42
Organic Synthesi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,998
2,212
0.738
* Total Citation Counts Rankings
Ranking Based On Selection: 43
Entomology
Biological pest contro
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,974
2,688
0.904
* Total Citation Counts Rankings
Ranking Based On Selection: 44
Plant Ecolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,836
2,179
0.768
* Total Citation Counts Rankings
Ranking Based On Selection: 45
Pediatric Nursin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,835
1,936
0.683
* Total Citation Counts Rankings
Ranking Based On Selection: 46
Molecular Biology
Gene manipulation
Detection Systems in Foo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,882
1,423
0.494
* Total Citation Counts Rankings
Ranking Based On Selection: 47
power electronics applications
energy conversion technique
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,802
1,656
0.591
* Total Citation Counts Rankings
Ranking Based On Selection: 48
Polymers
Glasses
Nanocomposite
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,587
2,069
0.800
* Total Citation Counts Rankings
Ranking Based On Selection: 49
Analytical and petroleum chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,553
2,183
0.855
* Total Citation Counts Rankings
Ranking Based On Selection: 50
Mathematical Modelling Fractional Calculus Integral Equation Numerical Methods and Analytical Metho
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,531
1,978
0.782
* Total Citation Counts Rankings
Rankings
267,522
1,092
26
Ranking Based On Selection: 26
Bahaa Saleh
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,998
2,319
0.580
Thermofluids - Thermal Engineerin
* Total Citation Counts Rankings
Rankings
273,222
1,119
27
Ranking Based On Selection: 27
Mohammed A Alzain
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,903
3,127
0.801
Cloud computing security
Cloud Computing
Information Security
Cyber security
Multimedia Securit
* Total Citation Counts Rankings
Rankings
284,833
1,178
28
Ranking Based On Selection: 28
Emad E Mahmoud
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,721
1,122
0.302
Nonlinear Dynamical Systems (both real and complex systems)
Stochastic systems
Nonlinear Differential Equations and Differen
* Total Citation Counts Rankings
Rankings
289,758
1,204
29
Ranking Based On Selection: 29
Hessini Kamel
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,646
2,587
0.710
* Total Citation Counts Rankings
Rankings
301,963
1,251
30
Ranking Based On Selection: 30
Hany H Arab
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,475
2,776
0.799
Biochemistry
Molecular Biology
Molecular Toxicology
Molecular Pharmacolog
* Total Citation Counts Rankings
Rankings
304,616
1,265
31
Ranking Based On Selection: 31
Sayed F Abdelwahab
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,439
1,867
0.543
HCV
HIV
HBV and HEV
Dendritic cells
Antimicrobial resistance mechanism
* Total Citation Counts Rankings
Rankings
304,804
1,269
32
Ranking Based On Selection: 32
Omar M Ali
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,436
2,535
0.738
Organic Chemistry
Synthetic Chemistry
Medicinal Chemistr
* Total Citation Counts Rankings
Rankings
312,252
1,318
33
Ranking Based On Selection: 33
Abdel Majid A Adam
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,339
2,236
0.670
* Total Citation Counts Rankings
Rankings
313,055
1,327
34
Ranking Based On Selection: 34
Rami Alzhrani
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,329
2,773
0.833
* Total Citation Counts Rankings
Rankings
320,180
1,367
35
Ranking Based On Selection: 35
Mohammed Shobrak
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,241
1,536
0.474
Animal Ecology
Genetic
Biodiversity Conservation
Birds parasitology
Reptile
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
325,709
1,401
36
Ranking Based On Selection: 36
Nasimullah
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,175
2,862
0.901
Renewable Energy Harvesting
Hybrid Intelligent Transformers
Smart Grid
* Total Citation Counts Rankings
Rankings
328,581
1,416
37
Ranking Based On Selection: 37
Ehab Elattar
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,141
2,635
0.839
Optimization
Power system operation
Forecasting
Microgrids
Integration of renewable energy in power system
* Total Citation Counts Rankings
Rankings
332,062
1,433
38
Ranking Based On Selection: 38
Khalid J Alzahrani
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,101
3,041
0.981
Infectious Disease
* Total Citation Counts Rankings
Rankings
336,520
1,453
39
Ranking Based On Selection: 39
Ahmed M El Shehawi
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,050
2,749
0.901
Genetics
Molecular Biology
Genetic Engineering
regulation of gene expression by DNA methylation and natural product
* Total Citation Counts Rankings
Rankings
338,922
1,466
40
Ranking Based On Selection: 40
Hamid Osman
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,023
2,920
0.966
Medical physics and radiation sciences and dosimetr
* Total Citation Counts Rankings
Rankings
339,848
1,472
41
Ranking Based On Selection: 41
Amr Mahdy
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,013
2,463
0.817
Pure Mathematics
Integral equations
Computational Methods
Numerical Analysi
* Total Citation Counts Rankings
Rankings
341,252
1,483
42
Ranking Based On Selection: 42
Hosam Saad
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,998
2,212
0.738
* Total Citation Counts Rankings
Rankings
343,497
1,497
43
Ranking Based On Selection: 43
Samy Mahmoud Hamed Sayed
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,974
2,688
0.904
Entomology
Biological pest contro
* Total Citation Counts Rankings
Rankings
356,958
1,581
45
Ranking Based On Selection: 44
Tarek Galal
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,836
2,179
0.768
* Total Citation Counts Rankings
Rankings
357,061
1,582
46
Ranking Based On Selection: 45
Eman Mohamed
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,835
1,936
0.683
* Total Citation Counts Rankings
Rankings
352,390
1,543
44
Ranking Based On Selection: 46
Abd Elaziem Farouk Gad
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,882
1,423
0.494
Molecular Biology
Gene manipulation
Detection Systems in Foo
* Total Citation Counts Rankings
Rankings
360,414
1,609
47
Ranking Based On Selection: 47
Mahrous Ahmed
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,802
1,656
0.591
power electronics applications
energy conversion technique
* Total Citation Counts Rankings
Rankings
383,831
1,747
48
Ranking Based On Selection: 48
KH Mahmoud
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,587
2,069
0.800
* Total Citation Counts Rankings
Rankings
387,711
1,767
49
Ranking Based On Selection: 49
Ashraf Yehia El Naggar
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,553
2,183
0.855
Analytical and petroleum chemistr
* Total Citation Counts Rankings
Rankings
390,260
1,784
50
Ranking Based On Selection: 50
Mohamed S Mohamed
Taif University
Taif, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,531
1,978
0.782
Mathematical Modelling Fractional Calculus Integral Equation Numerical Methods and Analytical Metho