Callistus N. Ude

596 total citations
22 papers, 479 citations indexed

About

Callistus N. Ude is a scholar working on Biomedical Engineering, Mechanical Engineering and Molecular Biology. According to data from OpenAlex, Callistus N. Ude has authored 22 papers receiving a total of 479 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Biomedical Engineering, 14 papers in Mechanical Engineering and 5 papers in Molecular Biology. Recurrent topics in Callistus N. Ude's work include Biodiesel Production and Applications (16 papers), Lubricants and Their Additives (12 papers) and Catalysis and Hydrodesulfurization Studies (5 papers). Callistus N. Ude is often cited by papers focused on Biodiesel Production and Applications (16 papers), Lubricants and Their Additives (12 papers) and Catalysis and Hydrodesulfurization Studies (5 papers). Callistus N. Ude collaborates with scholars based in Nigeria, Czechia and India. Callistus N. Ude's co-authors include Okechukwu D. Onukwuli, Dominic O. Onukwuli, Patrick Chukwudi Nnaji, Matthew C. Menkiti, O.D. Onukwuli, Valentine Chikaodili Anadebe, Emmanuel Olusola Oke, C. U. Atuanya, Okechukwu Dominic Onukwuli and Chukwunonso Chukwuzuloke Okoye and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of the Taiwan Institute of Chemical Engineers and Biofuels Bioproducts and Biorefining.

In The Last Decade

Callistus N. Ude

21 papers receiving 459 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Callistus N. Ude Nigeria 10 373 247 90 57 42 22 479
Candice Schmitt Faccini Brazil 5 437 1.2× 157 0.6× 112 1.2× 53 0.9× 27 0.6× 5 512
Dominic O. Onukwuli Nigeria 8 252 0.7× 163 0.7× 53 0.6× 36 0.6× 48 1.1× 28 375
Daniel Ikhu‐Omoregbe South Africa 9 496 1.3× 273 1.1× 165 1.8× 72 1.3× 25 0.6× 37 717
Monirul Islam Bangladesh 4 376 1.0× 213 0.9× 103 1.1× 76 1.3× 36 0.9× 5 586
Omar Aboelazayem United Kingdom 11 469 1.3× 217 0.9× 71 0.8× 49 0.9× 13 0.3× 29 618
Afaf R. Taman Egypt 9 449 1.2× 256 1.0× 109 1.2× 113 2.0× 26 0.6× 12 604
Mushtaq Ahmad Pakistan 8 383 1.0× 272 1.1× 77 0.9× 51 0.9× 13 0.3× 13 470
A. Shaija India 12 411 1.1× 120 0.5× 116 1.3× 100 1.8× 30 0.7× 28 687
Saurabh Joshi India 10 337 0.9× 187 0.8× 89 1.0× 28 0.5× 116 2.8× 13 537
Ajiboye S. Osunleke Nigeria 9 275 0.7× 210 0.9× 49 0.5× 24 0.4× 30 0.7× 21 456

Countries citing papers authored by Callistus N. Ude

Since Specialization
Citations

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

Fields of papers citing papers by Callistus N. Ude

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Callistus N. Ude. 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 Callistus N. Ude. The network helps show where Callistus N. Ude may publish in the future.

Co-authorship network of co-authors of Callistus N. Ude

This figure shows the co-authorship network connecting the top 25 collaborators of Callistus N. Ude. A scholar is included among the top collaborators of Callistus N. Ude 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 Callistus N. Ude. Callistus N. Ude 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
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Onukwuli, Okechukwu D., et al.. (2024). Kinetics evaluation of lard oil methanolysis catalyzed by thermally modified hybrid banana-plantain-peel-ash. Reaction Kinetics Mechanisms and Catalysis. 137(3). 1593–1617. 1 indexed citations
3.
Onukwuli, Dominic O., Callistus N. Ude, Chizoo Esonye, et al.. (2024). Transesterification of Persea americana seed oil to methyl ester using bio-based heterogeneous catalyst: Optimization and techno-economic analysis. SHILAP Revista de lepidopterología. 2(2). 100086–100086. 4 indexed citations
4.
Onukwuli, Okechukwu Dominic, et al.. (2024). Modelling and optimizing the transesterification process of shea butter via CD-BaCl-IL catalyst using soft computing algorithms. Results in Engineering. 22. 102004–102004. 5 indexed citations
5.
Onukwuli, Dominic O., et al.. (2024). Techno-economic analysis of the statistically optimized biodiesel production process using African pear seed oil and activated empty palm fruit bunch biocatalyst. SHILAP Revista de lepidopterología. 2(2). 95–112. 6 indexed citations
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Ude, Callistus N., et al.. (2022). Prediction of some thermo-physical properties of biodiesel using ANFIS and ANN cum sensitivity analysis. Cleaner Waste Systems. 2. 100006–100006. 17 indexed citations
10.
Ude, Callistus N., et al.. (2022). Evaluation of RSM and ANFIS modeling performance in fermentable sugar production from Enzymatic Hydrolysis Of Colocynthis vulgaris shrad seeds shell. Egyptian Journal of Petroleum. 31(3). 31–36. 6 indexed citations
11.
Onukwuli, Dominic O., et al.. (2022). Biodiesel synthesis from waste canarium schweinfurtii oil (WCSO) catalyzed by thermal reinforced clay and its kinetics evaluation. Cleaner Materials. 6. 100145–100145. 3 indexed citations
12.
Onukwuli, O.D., Patrick Chukwudi Nnaji, Matthew C. Menkiti, et al.. (2021). Dual-purpose optimization of dye-polluted wastewater decontamination using bio-coagulants from multiple processing techniques via neural intelligence algorithm and response surface methodology. Journal of the Taiwan Institute of Chemical Engineers. 125. 372–386. 50 indexed citations
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Onukwuli, Dominic O., et al.. (2020). Homogeneous catalyzed transesterification of neem seed oil to biodiesel and its kinetic modeling. Biofuels Bioproducts and Biorefining. 15(2). 392–403. 21 indexed citations
15.
Ude, Callistus N., et al.. (2020). Heterogeneously Catalyzed Methanolysis of Gmelina Seed Oil to Biodiesel. Chemical Engineering & Technology. 44(1). 65–76. 5 indexed citations
16.
Okoye, Chukwunonso Chukwuzuloke, et al.. (2020). Performance of Natural Coagulants in the Treatment of Vegetable Oil Industrial Effluent. Asian Journal of Advanced Research and Reports. 12–21. 3 indexed citations
17.
Ude, Callistus N. & Okechukwu D. Onukwuli. (2019). Kinetic modeling of transesterification of gmelina seed oil catalyzed by alkaline activated clay (NaOH/clay) catalyst. Reaction Kinetics Mechanisms and Catalysis. 127(2). 1039–1058. 23 indexed citations
18.
Onukwuli, Okechukwu D. & Callistus N. Ude. (2018). Kinetics of African pear seed oil (APO) methanolysis catalyzed by phosphoric acid-activated kaolin clay. Applied Petrochemical Research. 8(4). 299–313. 22 indexed citations
19.
Ude, Callistus N., et al.. (2017). Optimization of the methanolysis of lard oil in the production of biodiesel with response surface methodology. Egyptian Journal of Petroleum. 26(4). 1001–1011. 91 indexed citations
20.
Ude, Callistus N., et al.. (2017). Performance evaluation of cottonseed oil methyl esters produced using CaO and prediction with an artificial neural network. Biofuels. 11(1). 77–84. 29 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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Breakdown of academic impact, for papers by Candice Schmitt Faccini Breakdown of academic impact, for papers by Dominic O. Onukwuli Breakdown of academic impact, for papers by Daniel Ikhu‐Omoregbe Breakdown of academic impact, for papers by Monirul Islam Breakdown of academic impact, for papers by Omar Aboelazayem Breakdown of academic impact, for papers by Afaf R. Taman Breakdown of academic impact, for papers by Mushtaq Ahmad Breakdown of academic impact, for papers by A. Shaija Breakdown of academic impact, for papers by Saurabh Joshi Breakdown of academic impact, for papers by Ajiboye S. Osunleke
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2026