This map shows the geographic impact of T.E. Parker'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 T.E. Parker with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T.E. Parker more than expected).
This network shows the impact of papers produced by T.E. Parker. 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 T.E. Parker. The network helps show where T.E. Parker may publish in the future.
Co-authorship network of co-authors of T.E. Parker
This figure shows the co-authorship network connecting the top 25 collaborators of T.E. Parker.
A scholar is included among the top collaborators of T.E. Parker 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 T.E. Parker. T.E. Parker is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Heavner, Thomas P., Steven R. Jefferts, J.H. Shirley, et al.. (2014). First Accuracy Evaluation of NIST-F2 | NIST. Metrologia. 51.2 indexed citations
5.
Schneider, D. J., et al.. (2014). Volcview: A Web-Based Platform for Satellite Monitoring of Volcanic Activity and Eruption Response. 2014 AGU Fall Meeting. 2014.3 indexed citations
6.
Parker, T.E., et al.. (2013). A Study of the Diurnal in the Transatlantic TWSTFT Difference | NIST.7 indexed citations
7.
Paskievitch, J. F., et al.. (2010). Remote Telemetered and Time-Lapse Cameras at Augustine Volcano.5 indexed citations
Oskay, W.H., Scott A. Diddams, Elizabeth A. Donley, et al.. (2006). Single-Atom Optical Clock with High Accuracy. Physical Review Letters. 97(2). 20801–20801.213 indexed citations
10.
Heavner, Thomas P., Steven R. Jefferts, Elizabeth A. Donley, J.H. Shirley, & T.E. Parker. (2005). NIST F1: Recent improvements and a resulting accuracy of δf/f=0.53x10-15. Metrologia. 42.
11.
Bauch, A., Joseph Achkar, Rolf Dach, et al.. (2005). Time and Frequency Comparisons Between Four European Timing Institutes and NIST Using Multiple Techniques.9 indexed citations
12.
Parker, T.E. & Demetrios Matsakis. (2004). Time and Frequency Dissemination: Advances in GPS Transfer Techniques.27 indexed citations
13.
Jefferts, Steven R., D. M. Meekhof, J.H. Shirley, & T.E. Parker. (2002). The Accuracy Evaluation of NIST-F1. Metrologia. 39.4 indexed citations
14.
Bergquist, Jonas, J. J. Bollinger, R.E. Drullinger, et al.. (2001). Primary atomic frequency standards at NIST. Journal of Research of the National Institute of Standards and Technology. 106(1). 47–47.17 indexed citations
Parker, T.E.. (1978). Surface acoustic wave stabilized oscillators. NASA STI Repository (National Aeronautics and Space Administration).1 indexed citations
20.
Sandy, F. & T.E. Parker. (1976). Surface Wave Narrow Band Resonators.. Defense Technical Information Center (DTIC).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.