ES&T in the 21st century

A data-driven analysis of research topics, interconnections, and trends in the past 20 years

Retrieve the full-text of Zhu et al. (2021)

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General statistics

General statistics of publications and keywords

Keywords co-occurrence

Circos plots for co-occurrence of the Top keywords

Distribution of trending-up keywords

Distribution of temporal trend of the top 1000 keywords

Heat map of the trending-up keywords

Annual normalized temporal trend of the trending-up keywords

Distribution of the emerging keywords

Distribution of emerging trend of the top 1500 keywords

Heat map of the emerging keywords

Annual normalized temporal trend of the most emerging keywords

Domain-based classification

Membership-based networks of classified groups

Authors

Junjie Zhu

Junjie Zhu

Associate Research Scholar, CEE Department and the Andlinger Center for Energy and the Environment, Princeton University

Willow Dressel

Willow Dressel

Librarian of Engineering Library, Princeton University Library, Princeton University

Kelee Pacion

Kelee Pacion

Biology Librarian, Princeton University Library, Princeton University

Zhiyong Jason Ren

Zhiyong Jason Ren

Professor; Associate Director, CEE Department and the Andlinger Center for Energy and the Environment, Princeton University