Raj Kumar Singh

403 total citations
33 papers, 303 citations indexed

About

Raj Kumar Singh is a scholar working on Mechanical Engineering, Mechanics of Materials and Biomedical Engineering. According to data from OpenAlex, Raj Kumar Singh has authored 33 papers receiving a total of 303 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Mechanical Engineering, 17 papers in Mechanics of Materials and 12 papers in Biomedical Engineering. Recurrent topics in Raj Kumar Singh's work include Lubricants and Their Additives (16 papers), Tribology and Wear Analysis (13 papers) and Biodiesel Production and Applications (8 papers). Raj Kumar Singh is often cited by papers focused on Lubricants and Their Additives (16 papers), Tribology and Wear Analysis (13 papers) and Biodiesel Production and Applications (8 papers). Raj Kumar Singh collaborates with scholars based in India, Cameroon and Australia. Raj Kumar Singh's co-authors include Robert I. Kagi, Robert Alexander, Trevor P. Bastow, Shailesh Kumar Singh, Neeraj Atray, V. K. Varshney, Jasvinder Singh, Balvinder Kaur, P. B. Farmer and Margaret Gaskell and has published in prestigious journals such as Nucleic Acids Research, Fuel and Energy & Fuels.

In The Last Decade

Raj Kumar Singh

32 papers receiving 300 citations

Peers

Raj Kumar Singh
Aral Olcay Türkiye
Sylvain Verdier Denmark
Vadim Bayazitov Russia
Jérémie Barbier France
Xianyu Song China
Julio Cesar Guedes Correia Brazil
Jiazhong Wu China
Mohammed Haroun United States
Miras Issakhov Kazakhstan
Aral Olcay Türkiye
Raj Kumar Singh
Citations per year, relative to Raj Kumar Singh Raj Kumar Singh (= 1×) peers Aral Olcay

Countries citing papers authored by Raj Kumar Singh

Since Specialization
Citations

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

Fields of papers citing papers by Raj Kumar Singh

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Raj Kumar Singh. 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 Raj Kumar Singh. The network helps show where Raj Kumar Singh may publish in the future.

Co-authorship network of co-authors of Raj Kumar Singh

This figure shows the co-authorship network connecting the top 25 collaborators of Raj Kumar Singh. A scholar is included among the top collaborators of Raj Kumar Singh 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 Raj Kumar Singh. Raj Kumar Singh 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.
Singh, Raj Kumar, et al.. (2025). Synthesis and characterization of eco-friendly biolubricant from Brassica carinata oil: Parameter optimizations using response surface methodology. Biomass Conversion and Biorefinery. 15(13). 19657–19677. 1 indexed citations
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Singh, Raj Kumar, et al.. (2024). Use of modified chitosan as bitumen modifier and its impact on rheological properties in bitumen modification. Environmental Science and Pollution Research. 32(42). 24191–24205. 1 indexed citations
4.
Alam, Parvez, et al.. (2024). Valorization of used cooking oil into bio-based surfactant: modeling and optimization using response surface methodology. Biomass Conversion and Biorefinery. 15(17). 24243–24257. 3 indexed citations
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Singh, Raj Kumar, et al.. (2023). Potential valorization of used cooking oil into novel biolubricating grease through chemical modification and its performance evaluation. Industrial Crops and Products. 205. 117555–117555. 10 indexed citations
7.
Singh, Raj Kumar, et al.. (2023). Investigation of Tribological Performance of Eco-friendly Pentaerythritol Tetraoleate Ester Based Calcium Complex Grease. Waste and Biomass Valorization. 15(5). 2947–2960. 5 indexed citations
8.
Gupta, Piyush, et al.. (2023). Synthesis of fatty ester derived novel multifunctional additive and its performance evaluation in polyol base oil. Journal of the American Oil Chemists Society. 101(5). 501–511. 1 indexed citations
9.
Singh, Raj Kumar, et al.. (2023). Synthesis of a non-polymeric surfactant from naturally occurring vegetable acid and its use as a viscosity modifier and asphaltene dispersant for heavy oil. Journal of Molecular Liquids. 386. 122560–122560. 4 indexed citations
10.
Singh, Raj Kumar, et al.. (2022). Synthesis and characterization of novel ethyl levulinate coupled N-phenyl-p-phenylenediamine multifunctional additive: oxidation stability and lubricity improver in biodiesel. Energy Sources Part A Recovery Utilization and Environmental Effects. 44(3). 6236–6248. 4 indexed citations
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Singh, Raj Kumar, et al.. (2022). Studies on the application of poly(acrylate‐co‐maleic anhydride) amides with N‐phenyl‐p‐phenylenediamine as multifunctional lube additives. Journal of Applied Polymer Science. 139(21). 5 indexed citations
14.
Singh, Raj Kumar, et al.. (2021). Evaluation of renewable feedstock-derived copolymers of stearyl methacrylate-co-triglyceride as multifunctional green additives in lubricant. Polymer Bulletin. 79(4). 2133–2148. 7 indexed citations
15.
Singh, Raj Kumar, et al.. (2020). Viscosity Modification of Heavy Crude Oil by Using a Chitosan-Based Cationic Surfactant. Energy & Fuels. 34(4). 4474–4483. 37 indexed citations
16.
Kukrety, Aruna, et al.. (2020). Study of alkyl acrylate-co-maleic anhydride-based novel amide copolymers as multifunctional lubricant additives. Polymer Bulletin. 78(4). 2085–2102. 7 indexed citations
17.
Atray, Neeraj, et al.. (2020). Efficiency of Dodecenylsuccinic Amide of n‐Phenyl‐p‐Phenylenediammine as Novel Multifunctional Lubricant Additive for Deposit Control and Lubricity. Journal of Surfactants and Detergents. 24(1). 173–184. 5 indexed citations
18.
Srivastava, Manoj, et al.. (2010). Clarified Oil from Fluid Catalytic Cracking as an Additional Source of Group II Base Oil Components. Petroleum Science and Technology. 29(2). 172–182. 2 indexed citations
19.
Gaskell, Margaret, Balvinder Kaur, P. B. Farmer, & Raj Kumar Singh. (2007). Detection of phosphodiester adducts formed by the reaction of benzo[a]pyrene diol epoxide with 2'-deoxynucleotides using collision-induced dissociation electrospray ionization tandem mass spectrometry. Nucleic Acids Research. 35(15). 5014–5027. 10 indexed citations
20.
Alexander, Robert, Trevor P. Bastow, Robert I. Kagi, & Raj Kumar Singh. (1992). Identification of 1,2,2,5-tetramethyltetralin and 1,2,2,5,6-pentamethyltetralin as racemates in petroleum. Journal of the Chemical Society Chemical Communications. 1712–1712. 25 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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