Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
This map shows the geographic impact of Patrick Klein'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 Patrick Klein with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Patrick Klein more than expected).
This network shows the impact of papers produced by Patrick Klein. 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 Patrick Klein. The network helps show where Patrick Klein may publish in the future.
Co-authorship network of co-authors of Patrick Klein
This figure shows the co-authorship network connecting the top 25 collaborators of Patrick Klein.
A scholar is included among the top collaborators of Patrick Klein 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 Patrick Klein. Patrick Klein is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Foulk, James W., George C. Johnson, Patrick Klein, & Robert O. Ritchie. (2008). On the toughening of brittle materials by grain bridging: promoting intergranular fracture \nthrough grain angle, strength, and toughness. eScholarship (California Digital Library).53 indexed citations
8.
Foulk, James W., R. M. Cannon, George C. Johnson, Patrick Klein, & Robert O. Ritchie. (2008). A micromechanical basis for partitioning the evolution of grain bridging in brittle \nmaterials. eScholarship (California Digital Library).37 indexed citations
Zimmerman, Jonathan A., et al.. (2004). Calculation of stress in atomistic simulation. Modelling and Simulation in Materials Science and Engineering. 12(4). S319–S332.360 indexed citations
13.
Hao, Su, Wing Kam Liu, Patrick Klein, & Ares J. Rosakis. (2003). Modeling and simulation of intersonic crack growth. International Journal of Solids and Structures. 41(7). 1773–1799.59 indexed citations
14.
Zimmerman, Jonathan A., Cynthia L. Kelchner, Patrick Klein, J. C. Hamilton, & Stephen M. Foiles. (2001). Surface Step Effects on Nanoindentation. Physical Review Letters. 87(16). 165507–165507.392 indexed citations
Gaul, Lothar, et al.. (1991). Damping description involving fractional operators. Mechanical Systems and Signal Processing. 5(2). 81–88.428 indexed citations breakdown →
20.
Pineda, Oscar, et al.. (1978). [Use of tests based on the analysis of expired air in nutritional studies].. PubMed. 28(3). 301–17.2 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.