Citation Rankings
Highly Cited Researchers

Tokyo City University Highly Cited Researchers CitationEngineering & Technology / Environmental Science & Engineering Rankings (Sort by last 6 years Citation Index) 2025

Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Japan
Tomohiro Akiyama
Integral studies and integral practices for humanity and nature
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
612
390
0.637
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Japan
Selim Karkour
Environmental science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
308
306
0.994
* Last 6 Years Citation Counts Rankings
Rankings
808,846
Japan
14,648
19
Ranking Based On Selection: 1
Tomohiro Akiyama
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
612
390
0.637
Integral studies and integral practices for humanity and nature
* Last 6 Years Citation Counts Rankings
Rankings
913,336
Japan
16,427
22
Ranking Based On Selection: 2
Selim Karkour
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
308
306
0.994