This map shows the geographic impact of Richard Ewell's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Richard Ewell with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Richard Ewell more than expected).
This network shows the impact of papers produced by Richard Ewell. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Richard Ewell. The network helps show where Richard Ewell may publish in the future.
Co-authorship network of co-authors of Richard Ewell
This figure shows the co-authorship network connecting the top 25 collaborators of Richard Ewell.
A scholar is included among the top collaborators of Richard Ewell based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Richard Ewell. Richard Ewell is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Firdosy, Samad, Vilupanur A. Ravi, Chen-Kuo Huang, et al.. (2011). Life Testing of Segmented High Efficiency Thermoelectric Couples.1 indexed citations
3.
Ewell, Richard, et al.. (2008). Simulating the Gradually Deteriorating Performance of an RTG. NASA Technical Reports Server (NASA).1 indexed citations
4.
Caillat, T., Shaowu Cheng, P. Gogna, et al.. (2008). Advanced Thermoelectric Materials for Radioisotope Thermoelectric Generators. NASA Technical Reports Server (NASA).1 indexed citations
Caillat, T., Jeffrey Sakamoto, April D. Jewell, et al.. (2006). Status of skutterudite-based segmented thermoelectric technology components development at JPL. NASA Technical Reports Server (NASA).2 indexed citations
Ratnakumar, B. V., Marshall C. Smart, Richard Ewell, et al.. (2004). Lithium-Ion rechargeable batteries on Mars Rover. NASA Technical Reports Server (NASA).10 indexed citations
12.
Bugga, Ratnakumar, Marshall C. Smart, Richard Ewell, et al.. (2004). Our experiences with lithium batteries on Mars Exploration Rovers. NASA Technical Reports Server (NASA).1 indexed citations
Ewell, Richard. (1983). Energy conversion for megawatt space power systems. Proc., Intersoc. Energy Convers. Eng. Conf.; (United States). 1.2 indexed citations
20.
Ewell, Richard, et al.. (1981). Advanced high temperature thermoelectrics for space power. Intersociety Energy Conversion Engineering Conference.1 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.