J.R. O’Callaghan

About

J.R. O’Callaghan is a scholar working on Mechanical Engineering, Civil and Structural Engineering and Food Science. According to data from OpenAlex, J.R. O’Callaghan has authored 33 papers receiving a total of 611 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Mechanical Engineering, 9 papers in Civil and Structural Engineering and 6 papers in Food Science. Recurrent topics in J.R. O’Callaghan’s work include Agricultural Engineering and Mechanization (5 papers), Granular flow and fluidized beds (4 papers) and Soil Mechanics and Vehicle Dynamics (4 papers). J.R. O’Callaghan is often cited by papers focused on Agricultural Engineering and Mechanization (5 papers), Granular flow and fluidized beds (4 papers) and Soil Mechanics and Vehicle Dynamics (4 papers). J.R. O’Callaghan collaborates with scholars based in United Kingdom, Ireland and Australia. J.R. O’Callaghan's co-authors include D.R.P. Hettiaratchi, J.L. Woods, P. R. Philips, V.A. Dodd, T. H. Flowers, K. K. S. Bhat, Z. Zhong and Youcai Liang and has published in prestigious journals such as Water Resources Research, Journal of Theoretical Biology and Agricultural Systems.

In The Last Decade

Co-authorship network of co-authors of J.R. O’Callaghan

This figure shows the co-authorship network connecting the top 25 collaborators of J.R. O’Callaghan. A scholar is included among the top collaborators of J.R. O’Callaghan 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 J.R. O’Callaghan. J.R. O’Callaghan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fields of papers citing papers by J.R. O’Callaghan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.R. O’Callaghan. 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 J.R. O’Callaghan. The network helps show where J.R. O’Callaghan may publish in the future.

Countries citing papers authored by J.R. O’Callaghan

Since Specialization

Citations

This map shows the geographic impact of J.R. O’Callaghan'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 J.R. O’Callaghan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J.R. O’Callaghan more than expected).

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.

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