Ranking positions are determined by aggregating the D-indexes (Discipline H-index) of all qualifying scholars affiliated with each institution, whose principal publication focus is in the area of Engineering and Technology. The D-index reflects exclusively the publications and corresponding citation data within the examined discipline, ensuring a targeted and discipline-specific assessment of scholarly impact.
Scope of Research and Inclusion Criteria
This ranking is underpinned by an extensive analysis of 279,971 scientist profiles identified from diverse bibliometric sources. Specifically, 50,429 scientists with a primary focus in Engineering and Technology were rigorously examined.
The selection criteria for inclusion required that a scientist have a minimum D-index threshold of 30, with the majority of tier publications falling squarely within Engineering and Technology. Furthermore, each candidate's awards and achievements in the discipline were considered as additional qualitative factors.
To ensure balanced representation and inclusion of top experts across various subfields, the D-index threshold for consideration as a leading researcher was increased in increments of 10, relative to the estimated size of each discipline, safeguarding the incorporation of the top 1% of leading scholars. Also, a proximity constraint of 30% or less was maintained between a scientist’s overall H-index and their D-index to validate domain-specific excellence.
Verification and Additional Quality Assurance
Recognizing the limitations inherent in raw bibliometric data, researchers dedicated significant effort to manual verification of all scientist profiles. Each profile was cross-referenced against a wide range of authoritative publication sources to fortify accuracy and authenticity.
Although not a primary ranking criterion, the number of papers published in prestigious journals and major conference proceedings is acknowledged as a vital secondary indicator of a scientist's scholarly contribution.
The final positioning in the ranking relies on each researcher’s H-index as obtained from OpenAlex and CrossRef—two of the most trusted and widely recognized bibliometric databases within the research community.
For a comprehensive and detailed explanation of all methodological aspects, readers are encouraged to consult our methodology page.
Research.com’s Mission and Agenda
Research.com is committed to fostering scientific progress and collaboration by providing clear and reliable insights into the global research landscape. Our mission is to motivate scientists, business leaders, and policymakers to explore the frontiers of Engineering and Technology, and to empower the academic and scientific community with transparency regarding the top experts in specific disciplines across countries and institutions.
Through this ranking, we aim to highlight exemplary achievement, promote excellence, and facilitate connections that drive innovation within the scientific community worldwide.
Key Results from the 2024 Ranking
Below are the principal findings from this year’s evaluation of Engineering and Technology universities in Nigeria and worldwide:
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Top Institution in Nigeria:
- Federal University of Technology Akure — 1 leading scientist in Engineering and Technology.
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Global Leaders in Engineering and Technology:
- Most prominent scholars are affiliated with: Rice University, Pennsylvania State University, University College Dublin, HEC Montréal, Quaid-i-Azam University, Northwestern University, Stanford University, Carnegie Mellon University, Penn State Harrisburg, and The University of Texas at Arlington.
- Professor Frederick E. Shelton (Johnson & Johnson, United States) ranks as the world's foremost scientist in Engineering and Technology, with a D-index of 257.
- Menachem Elimelech (Rice University) and Bruce E. Logan (Pennsylvania State University) hold the second (D-index: 200) and third (D-index: 163) global spots, respectively.
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Statistical Highlights:
- The average total D-index for the top 5% of universities is 2,073, significantly exceeding the overall average of 305 for all 1,290 ranked institutions.
- The average number of publications in Engineering and Technology for scholars at the top 5% universities is 10,087, compared to the average of 1,480 for all institutions.
- The average number of citations for researchers at the top 1% universities stands at 1,279,971, against an overall average of 71,259 for all 1,290 universities.
The 4th edition of the Research.com Engineering and Technology Universities in Nigeria Ranking delivers a meticulously constructed, data-driven insight for academics, institutional leaders, and policymakers dedicated to advancing excellence in Engineering and Technology research.
