Citation Rankings
Highly Cited Researchers

Sana'a University Highly Cited Researchers CitationEngineering & Technology / Mechanical Engineering Rankings 2025

Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Total Citation Counts Rankings
Ranking Based On Selection :1
Yemen
KA Al-Attab
Renewable energy
biomass
gasification
biofuels
gas turbine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,048
751
0.717
* Total Citation Counts Rankings
Ranking Based On Selection :2
Yemen
Mohammed Ahmed Al-Bukhaiti
Machine Elements Design
Manufacturing Process
Engineering Materials
Tribology of Materials.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
592
362
0.611
* Total Citation Counts Rankings
Ranking Based On Selection :3
Yemen
Hamoud A. Al-Nehari
Renewable Energy Systems
Modelling and Simulation of Air Pollution Dispersion
Computational Fluid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58
51
0.879
* Total Citation Counts Rankings
Rankings
649,461
Yemen
51
20
Ranking Based On Selection: 1
KA Al-Attab
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,048
751
0.717
Renewable energy
biomass
gasification
biofuels
gas turbine
* Total Citation Counts Rankings
Rankings
848,309
Yemen
93
36
Ranking Based On Selection: 2
Mohammed Ahmed Al-Bukhaiti
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
592
362
0.611
Machine Elements Design
Manufacturing Process
Engineering Materials
Tribology of Materials.
* Total Citation Counts Rankings
Rankings
1,760,050
Yemen
575
205
Ranking Based On Selection: 3
Hamoud A. Al-Nehari
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58
51
0.879
Renewable Energy Systems
Modelling and Simulation of Air Pollution Dispersion
Computational Fluid