The Citation Rankings (Highly Cited Researchers) 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
Advanced Drilling Technology
Hard and Superhard Materials
Additive Manufacturing
Nanomaterials and Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,734
2,627
0.390
* Total Citation Counts Rankings
Ranking Based On Selection :2
Nanomaterials Science & Engineering
Composite Materials Processing
Carbon Fibers Manufacturing
Automotive Lightweighting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,650
1,529
0.419
* Total Citation Counts Rankings
Ranking Based On Selection :3
Nanoparticles Synthesis
Perovskite
TEM
Flow- and Electro-Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,711
2,078
0.767
* Total Citation Counts Rankings
Ranking Based On Selection :4
Nanomaterials & Nanotechnology in Upstream Oil and Gas
Colloid and Interface Science
Electrokinetics
Subsurface nanoparticle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,811
953
0.526
* Total Citation Counts Rankings
Ranking Based On Selection :5
Fracturing
Nanotechnology
Sand Control
Water Conformance
Composites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,172
632
0.539
* Total Citation Counts Rankings
Ranking Based On Selection :6
Nanoscience
Materials Science
Catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
958
950
0.992
* Total Citation Counts Rankings
Ranking Based On Selection :7
Research l Nanotechnology l Water Shutoff l EOR Conformance Control l
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
630
578
0.917
Guodong (David) Zhan
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,734
2,627
0.390
Advanced Drilling Technology
Hard and Superhard Materials
Additive Manufacturing
Nanomaterials and Nanotechnology
Mohamed Bouhrara
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,650
1,529
0.419
Nanomaterials Science & Engineering
Composite Materials Processing
Carbon Fibers Manufacturing
Automotive Lightweighting
Noktan Mohammed Alyami
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,711
2,078
0.767
Nanoparticles Synthesis
Perovskite
TEM
Flow- and Electro-Chemistry
Amr Abdel-Fattah
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,811
953
0.526
Nanomaterials & Nanotechnology in Upstream Oil and Gas
Colloid and Interface Science
Electrokinetics
Subsurface nanoparticle
Rajendra Kalgaonkar
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,172
632
0.539
Fracturing
Nanotechnology
Sand Control
Water Conformance
Composites
Rashed Aleisa
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
958
950
0.992
Nanoscience
Materials Science
Catalysis
Ayman Almohsin
Saudi Arabian Oil Company
Dhahran, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
630
578
0.917
Research l Nanotechnology l Water Shutoff l EOR Conformance Control l