Data Sources and Citation Metrics
The 5th edition of the Research.com Best Engineering and Technology Scientists in Ukraine Ranking has been developed using comprehensive bibliometric data obtained primarily from OpenAlex and CrossRef, augmented by multiple other reputable sources. These sources collectively provide a robust and multifaceted overview of scientific output and impact. The bibliometric data used to calculate the citation-based metrics for this ranking were collected on January 12, 2026. A scientist’s rank is determined based on their D-index (Discipline H-index), which specifically measures the citation impact of publications within the targeted discipline, thereby delivering a highly focused evaluation of a researcher's contributions to Engineering and Technology.
Scope of Research and Selection Criteria
This ranking rigorously evaluated a total of 279,971 scientist profiles across all disciplines, of which 1,332 were identified as belonging specifically to the field of Engineering and Technology. To qualify for inclusion in the ranking, a scientist’s D-index had to be at least 30, with the majority of their tier publications being explicitly within the Engineering and Technology domain. Additionally, a scientist’s awards and notable achievements within this field were carefully considered as qualifying factors.
The threshold for the D-index was calibrated in increments of 10 based on the estimated total number of scholars in each discipline, ensuring the inclusion of the top 1% of leading researchers. This approach guarantees that the ranking represents the highest echelon of scientific excellence. Furthermore, to assure disciplinary specificity, a proximity of 30% or less between a scientist’s general H-index and their D-index was enforced, reinforcing that the ranking reflects sustained and focused impact in Engineering and Technology.
Additional Verification Practices
The Research.com team recognizes that raw bibliometric data should never serve as the sole or absolute measure of scholarly output. Accordingly, all scientist profiles were subject to meticulous manual verification and cross-correlation against publications listed in a broad array of trustworthy and authoritative sources. While the number of papers published in high-impact journals and conference proceedings does not directly influence a researcher’s position within this ranking, such metrics are acknowledged as valuable secondary indicators of an individual’s research contributions.
The ranking position is established using each researcher’s D-index as derived from OpenAlex and CrossRef, currently the most prominent and widely respected bibliometric databases available to the global research community. For those interested in a detailed understanding of the methodology, documentation is available on our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to inspire researchers, industry leaders, policymakers, and academic institutions worldwide to explore the trajectories of leading experts. We aim to provide a transparent and authoritative resource that highlights who the foremost scientists are within specific disciplines, countries, or even research institutions. Through this ranking, we seek to foster informed collaboration, stimulate academic excellence, and enable strategic decision-making that collectively advances the frontiers of science and technology.
