A researcher’s position in the ranking is determined by their D-index (Discipline H-index), which specifically measures impact within the examined discipline. Unlike the general H-index, the D-index considers only those papers and citations that pertain directly to Engineering and Technology, ensuring that the ranking reflects domain-specific research excellence.
Scope of Research and Qualification Criteria
The ranking evaluation encompassed a dataset of 279,971 scientist profiles identified from a variety of bibliometric sources across all scientific disciplines. Within this extensive population, 6 scientists specializing in Engineering and Technology from Oman were examined in detail.
To qualify for inclusion in the Engineering and Technology ranking, a scientist’s D-index had to be at least 30, with a majority of their top-tier publications focused specifically on the Engineering and Technology discipline. In addition to bibliometric thresholds, individual contributions such as awards and notable achievements within the field were factored into the inclusion criteria.
The D-index threshold for considering top researchers is dynamically set as increments of 10, corresponding to the estimated total number of scholars in each discipline. This approach guarantees that the top 1% of leading scholars in Engineering and Technology are incorporated into the list. Furthermore, a proximity filter ensures there is a 30% or less difference between a scientist's overall H-index and their discipline-specific D-index, confirming a strong alignment between their general impact and disciplinary focus.
Verification and Methodological Rigor
Recognizing that raw bibliometric data should never be considered an absolute measure of scholarly output, the Research.com team undertook meticulous manual verification of all scientist profiles included in the ranking. This process involved cross-correlation against publications indexed in a wide range of trustworthy academic sources to ensure accuracy and authenticity.
While not directly influencing the position in the ranking, the quantity of papers published in prominent journals and leading conference proceedings serves as an important secondary indicator of a researcher’s substantive contributions in their specific area of science.
The final ranking position is calculated using each researcher’s D-index as derived from data provided by OpenAlex and CrossRef—two of the most prominent and widely respected bibliometric databases accessible to the academic community. For comprehensive details on the methodology employed, please visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to motivate researchers, academic institutions, companies, and policymakers worldwide to identify emerging trends and track the trajectories of leading scientific experts. By providing transparent and rigorously vetted rankings, we aim to empower the global scientific community to recognize and connect with top specialists in specific fields, countries, and institutions.
This initiative supports informed decision-making and fosters collaboration among stakeholders, ultimately advancing scientific innovation and excellence across disciplines.
