Nigel Clark

8.1k total citations
315 papers, 6.1k citations indexed

About

Nigel Clark is a scholar working on Automotive Engineering, Fluid Flow and Transfer Processes and Biomedical Engineering. According to data from OpenAlex, Nigel Clark has authored 315 papers receiving a total of 6.1k indexed citations (citations by other indexed papers that have themselves been cited), including 174 papers in Automotive Engineering, 136 papers in Fluid Flow and Transfer Processes and 64 papers in Biomedical Engineering. Recurrent topics in Nigel Clark's work include Vehicle emissions and performance (163 papers), Advanced Combustion Engine Technologies (136 papers) and Catalytic Processes in Materials Science (44 papers). Nigel Clark is often cited by papers focused on Vehicle emissions and performance (163 papers), Advanced Combustion Engine Technologies (136 papers) and Catalytic Processes in Materials Science (44 papers). Nigel Clark collaborates with scholars based in United States, South Africa and United Kingdom. Nigel Clark's co-authors include Donald W. Lyons, Christopher M. Atkinson, Richard Turton, W. Scott Wayne, Paul Norton, Mridul Gautam, R.L.C. Flemmer, M. Gautam, Gregory Thompson and Ralph D. Nine and has published in prestigious journals such as Nature, SHILAP Revista de lepidopterología and Environmental Science & Technology.

In The Last Decade

Nigel Clark

304 papers receiving 5.6k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Nigel Clark 2.7k 2.1k 1.9k 1.3k 1.1k 315 6.1k
Tat Leung Chan 1.2k 0.4× 1.2k 0.6× 1.1k 0.6× 498 0.4× 1.0k 0.9× 121 3.8k
Gordon E. Andrews 1.3k 0.5× 1.7k 0.8× 1.1k 0.6× 865 0.7× 1.7k 1.5× 263 5.0k
C.S. Cheung 3.3k 1.2× 5.8k 2.8× 4.6k 2.5× 1.4k 1.1× 2.8k 2.5× 198 9.4k
Zissis Samaras 4.7k 1.8× 1.8k 0.9× 1.6k 0.9× 619 0.5× 415 0.4× 275 8.0k
Shijin Shuai 2.9k 1.1× 5.5k 2.7× 3.4k 1.8× 741 0.6× 2.8k 2.5× 286 8.0k
Yuhan Huang 1.5k 0.6× 1.0k 0.5× 745 0.4× 267 0.2× 713 0.6× 156 3.7k
John B. Heywood 4.1k 1.6× 7.3k 3.5× 2.2k 1.2× 1.0k 0.8× 4.7k 4.2× 217 9.8k
Konstantinos Boulouchos 2.0k 0.7× 5.2k 2.5× 1.1k 0.6× 360 0.3× 4.9k 4.3× 301 7.7k
Hu Li 1.4k 0.5× 757 0.4× 783 0.4× 332 0.3× 173 0.2× 201 3.2k
Leónidas Ntziachristos 5.3k 2.0× 1.4k 0.7× 847 0.5× 256 0.2× 272 0.2× 193 7.7k

Countries citing papers authored by Nigel Clark

Since Specialization
Citations

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

Fields of papers citing papers by Nigel Clark

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nigel Clark. 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 Nigel Clark. The network helps show where Nigel Clark may publish in the future.

Co-authorship network of co-authors of Nigel Clark

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

All Works

20 of 20 papers shown
1.
Daube, Conner, Scott C. Herndon, Jordan Krechmer, et al.. (2023). Quantification of Natural Gas and Other Hydrocarbons from Production Sites in Northern West Virginia Using Tracer Flux Ratio Methodology. SSRN Electronic Journal. 1 indexed citations
2.
Thoma, Eben D., et al.. (2022). Evaluating natural gas emissions from pneumatic controllers from upstream oil and gas facilities in West Virginia. Atmospheric Environment X. 17. 100199–100199. 4 indexed citations
3.
Clark, Nigel, et al.. (2019). Quantification of Windage and Vibrational Losses in Flexure Springs of a One kW Two-Stroke Free Piston Linear Engine Alternator. SAE technical papers on CD-ROM/SAE technical paper series. 1. 6 indexed citations
4.
Clark, Nigel, et al.. (2019). Feasibility of Multiple Piston Motion Control Approaches in a Free Piston Engine Generator. SAE International Journal of Advances and Current Practices in Mobility. 2(2). 914–928. 5 indexed citations
5.
Clark, Nigel, et al.. (2019). Sensitivity Analysis and Control Methodology for Linear Engine Alternator. SAE International Journal of Advances and Current Practices in Mobility. 1(2). 578–587. 5 indexed citations
6.
Johnson, Derek, et al.. (2018). Continuously Varying Exhaust Outlet Diameter to Improve Efficiency and Emissions of a Small SI Natural Gas Two-Stroke Engine by Internal EGR. SAE technical papers on CD-ROM/SAE technical paper series. 1. 9 indexed citations
7.
Clark, Nigel, Derek Johnson, David L. McKain, et al.. (2017). Future methane emissions from the heavy-duty natural gas transportation sector for stasis, high, medium, and low scenarios in 2035. Journal of the Air & Waste Management Association. 67(12). 1328–1341. 14 indexed citations
8.
Clark, Nigel, Mridul Gautam, Reda M. Bata, et al.. (2014). Technical report: design and operation of a new transportable laboratory for emissions testing of heavy duty trucks and buses. International Journal of Heavy Vehicle Systems. 2.
9.
Clark, Nigel & David L. McKain. (2014). TRANSIENT CHASSIS CYCLES FOR HEAVY DUTY TRUCKS AND TRACTORS.. International Journal of Heavy Vehicle Systems.
10.
Clark, Nigel, et al.. (2012). Verification and validation of an active sailing simulator. eCite Digital Repository (University of Tasmania). 1 indexed citations
11.
Nix, Andrew C., et al.. (2011). Fuel economy and emissions analysis of conventional diesel, diesel-electric hybrid, biodiesel and natural gas powered transit buses. WIT transactions on ecology and the environment. 1. 895–908. 3 indexed citations
12.
Wayne, W. Scott, et al.. (2007). Effect of Average Speed and Idle Duration on Exhaust Emissions from a Diesel Bus Tested on Fourteen Drive Cycles. Transportation Research Board 86th Annual MeetingTransportation Research Board. 1 indexed citations
13.
Clark, Nigel, et al.. (2006). Characterization and Abatement of Diesel Crankcase Emissions. SAE technical papers on CD-ROM/SAE technical paper series. 1. 11 indexed citations
14.
Kamel, Mostafa, et al.. (2002). An Emission and Performance Comparison of the Natural Gas Cummins Westport Inc. C-Gas Plus Versus Diesel in Heavy-Duty Trucks. SAE technical papers on CD-ROM/SAE technical paper series. 1. 16 indexed citations
15.
Chandler, K., Paul Norton, & Nigel Clark. (2001). Waste Management's LNG Truck Fleet: Final Results. University of North Texas Digital Library (University of North Texas). 5 indexed citations
16.
Chandler, K., Paul Norton, & Nigel Clark. (2000). Alternative Fuel Transit Buses: DART's (Dallas Area Rapid Transit) LNG Bus Fleet Final Results. University of North Texas Digital Library (University of North Texas). 1 indexed citations
17.
Atkinson, Christopher M., et al.. (1999). Free-Piston Diesel-Fueled Linear Alternator for Auxiliary Power Unit Applications. Defense Technical Information Center (DTIC). 1 indexed citations
18.
Smith, James E., et al.. (1988). Low-Heat Rejection Engines — A Concept Review. SAE technical papers on CD-ROM/SAE technical paper series. 1. 15 indexed citations
19.
Meloy, T.P. & Nigel Clark. (1986). Generalized Locking Profile for Angular Particles ‐ Locked Particle Theory. Particle & Particle Systems Characterization. 3(2). 63–67. 6 indexed citations
20.
Clark, Nigel, et al.. (1968). OPERATING COSTS OF CARS IN URBAN AREAS. 10 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.

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Rankless by CCL
2026