Data Sources and Citation Metrics
The 5th edition of the Research.com Best Mechanical and Aerospace Engineering Scientists in Iran, Islamic Republic Of Ranking is built upon comprehensive bibliometric data collated primarily from OpenAlex and CrossRef, supplemented by multiple additional reputable scholarly data sources. The bibliometric datasets used to derive the citation-based metrics for this ranking were harvested on 2026-01-12, ensuring the most current and accurate evaluation of scholarly contributions. A researcher’s position within the ranking is determined exclusively by their D-index (Discipline H-index), a refined metric that accounts solely for publications and citations within the specific discipline under consideration—in this case, Mechanical and Aerospace Engineering.
Scope of Research and Criteria for Inclusion
The ranking rigorously assessed 279,971 scientist profiles drawn from a wide spectrum of bibliometric databases spanning all scientific disciplines. Within this extensive pool, 105 scientists specializing in Mechanical and Aerospace Engineering were specifically analyzed. To qualify for the ranking, a scientist’s D-index had to meet or exceed a minimum threshold of 30, with the majority of their tier publications demonstrating a clear focus on Mechanical and Aerospace Engineering. Additionally, recognition such as awards and distinguished achievements within the field contributed to the evaluation process.
The determination of the D-index threshold follows an incremental model based on the size of the scholar population within each discipline, increasing by units of 10 to accommodate differing field densities while ensuring the inclusion of the top 1% of leading researchers. Furthermore, a proximity criterion limits the difference between a scientist’s general H-index and their D-index to 30% or less, ensuring that their impact is significantly centered in the relevant discipline.
Additional Verification Practices
Recognizing that raw bibliometric data alone cannot serve as a definitive measure of a scholar's impact, the Research.com team conducted meticulous manual verification of all scientist profiles. This process included cross-correlation with publications documented in an extensive array of trustworthy academic sources to validate the accuracy and authenticity of the data. Although not directly influencing the positional ranking, the volume of papers published in prominent journals and key conference proceedings is considered a valuable secondary indicator of a researcher’s contribution and influence within Mechanical and Aerospace Engineering.
The ranking positions are calculated based on each researcher’s D-index as derived from OpenAlex and CrossRef, which remain the most prominent and widely respected bibliometric databases accessible to the research community. Readers interested in a detailed understanding of the methodology applied are encouraged to consult our methodology page.
Research.com’s Mission and Vision
At Research.com, our fundamental mission is to inspire researchers, industry leaders, and policymakers worldwide to track and understand the trajectory of leading experts in their respective fields. By providing transparent and rigorously curated rankings, we aim to facilitate the scientific community’s ability to identify prominent researchers—whether within specific disciplines, geographies, or institutions—and foster collaborative and informed scientific advancement. This ranking epitomizes our commitment to delivering credible, refined, and insightful data to support informed academic and research decisions globally.
