Gehan A. Ismail

1.3k total citations
44 papers, 913 citations indexed

About

Gehan A. Ismail is a scholar working on Renewable Energy, Sustainability and the Environment, Aquatic Science and Numerical Analysis. According to data from OpenAlex, Gehan A. Ismail has authored 44 papers receiving a total of 913 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Renewable Energy, Sustainability and the Environment, 9 papers in Aquatic Science and 8 papers in Numerical Analysis. Recurrent topics in Gehan A. Ismail's work include Algal biology and biofuel production (12 papers), Seaweed-derived Bioactive Compounds (9 papers) and Nonlinear Differential Equations Analysis (6 papers). Gehan A. Ismail is often cited by papers focused on Algal biology and biofuel production (12 papers), Seaweed-derived Bioactive Compounds (9 papers) and Nonlinear Differential Equations Analysis (6 papers). Gehan A. Ismail collaborates with scholars based in Egypt, Saudi Arabia and India. Gehan A. Ismail's co-authors include Saly F. Gheda, Atef M. Abo-Shady, Mona M. Ismail, Mostafa M. El‐Sheekh, Abd El‐Fatah Abomohra, Nanis G. Allam, Mohamed A. Salem, Iman Ibrahim, Dalia A. Ahmed and Reda M. Gaafar and has published in prestigious journals such as Energy Conversion and Management, Renewable Energy and Marine Pollution Bulletin.

In The Last Decade

Gehan A. Ismail

39 papers receiving 888 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Gehan A. Ismail Egypt 19 296 219 172 156 119 44 913
Saly F. Gheda Egypt 19 418 1.4× 408 1.9× 104 0.6× 282 1.8× 89 0.7× 33 1.1k
Sunil Pabbi India 17 699 2.4× 103 0.5× 134 0.8× 195 1.3× 97 0.8× 52 1.2k
Petr Kaštánek Czechia 19 425 1.4× 77 0.4× 155 0.9× 77 0.5× 48 0.4× 42 859
J Bérard France 20 572 1.9× 149 0.7× 171 1.0× 63 0.4× 189 1.6× 38 1.3k
Sushanta Kumar Saha Ireland 21 413 1.4× 135 0.6× 100 0.6× 93 0.6× 29 0.2× 54 1.1k
Aurora Silva Portugal 15 139 0.5× 226 1.0× 103 0.6× 88 0.6× 25 0.2× 50 707
Atef M. Abo-Shady Egypt 15 411 1.4× 172 0.8× 179 1.0× 143 0.9× 28 0.2× 36 766
Sara P. Cuéllar‐Bermúdez Mexico 19 1.1k 3.6× 162 0.7× 307 1.8× 96 0.6× 57 0.5× 29 1.5k
Bilian Chen China 21 380 1.3× 87 0.4× 214 1.2× 138 0.9× 54 0.5× 69 1.2k
Yongjin He China 25 898 3.0× 203 0.9× 256 1.5× 67 0.4× 60 0.5× 62 1.5k

Countries citing papers authored by Gehan A. Ismail

Since Specialization
Citations

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

Fields of papers citing papers by Gehan A. Ismail

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gehan A. Ismail. 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 Gehan A. Ismail. The network helps show where Gehan A. Ismail may publish in the future.

Co-authorship network of co-authors of Gehan A. Ismail

This figure shows the co-authorship network connecting the top 25 collaborators of Gehan A. Ismail. A scholar is included among the top collaborators of Gehan A. Ismail 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 Gehan A. Ismail. Gehan A. Ismail 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.
El-Sheikh, M. M. A., et al.. (2025). On the Oscillation of Fourth-Order Delay Differential Equations via Riccati Transformation. Mathematics. 13(3). 494–494. 1 indexed citations
2.
Ismail, Mona M., et al.. (2023). Chemodiversity and bioactivity assessment of phlorotannins from some Phaeophyta species from the Red Sea. Journal of Applied Phycology. 35(4). 1769–1788. 8 indexed citations
3.
Abo-Shady, Atef M., et al.. (2023). Antioxidant and Antidiabetic Activity of Algae. Life. 13(2). 460–460. 42 indexed citations
4.
Abo-Shady, Atef M., et al.. (2023). Cyanobacteria as a Valuable Natural Resource for Improved Agriculture, Environment, and Plant Protection. Water Air & Soil Pollution. 234(5). 313–313. 14 indexed citations
5.
Ismail, Mona M., Gehan A. Ismail, & Mostafa E. Elshobary. (2023). Morpho-anatomical, and chemical characterization of some calcareous Mediterranean red algae species. Botanical studies. 64(1). 10–10. 7 indexed citations
6.
El-Sheikh, M. M. A., et al.. (2022). On the oscillation and non-oscillation of solutions of forced second order differential equations. Journal of Mathematics and Computer Science. 30(1). 101–115.
7.
Ismail, Gehan A., et al.. (2021). Potential role of Spirulina (Arthrospira) platensis biomass for removal of TiO2NPs -MG hybrid nanocomposite produced after wastewater treatment by TiO2 nanoparticles. Anais da Academia Brasileira de Ciências. 93(suppl 3). e20201669–e20201669. 3 indexed citations
8.
9.
El-Sheikh, M. M. A., et al.. (2021). Hyers–Ulam stability of impulsive Volterra delay integro-differential equations. Advances in Difference Equations. 2021(1). 6 indexed citations
10.
Abo-Shady, Atef M., et al.. (2021). Potential effect of Turbinaria decurrens acetone extract on the biochemical and histological parameters of alloxan-induced diabetic rats. International Journal of Environmental Health Research. 32(7). 1447–1468. 11 indexed citations
11.
Ahmed, Dalia A., Saly F. Gheda, & Gehan A. Ismail. (2020). Efficacy of two seaweeds dry mass in bioremediation of heavy metal polluted soil and growth of radish (Raphanus sativus L.) plant. Environmental Science and Pollution Research. 28(10). 12831–12846. 41 indexed citations
12.
13.
Shabaka, Soha, et al.. (2020). Thermal analysis and enhanced visual technique for assessment of microplastics in fish from an Urban Harbor, Mediterranean Coast of Egypt. Marine Pollution Bulletin. 159. 111465–111465. 65 indexed citations
14.
Ismail, Mona M., Gehan A. Ismail, & Mostafa M. El‐Sheekh. (2020). Potential assessment of some micro- and macroalgal species for bioethanol and biodiesel production. Energy Sources Part A Recovery Utilization and Environmental Effects. 46(1). 7683–7699. 44 indexed citations
15.
Gheda, Saly F., et al.. (2020). Antioxidant and Antihyperglycemic Activity of Arthrospira platensis (Spirulina platensis) Methanolic Extract: In vitro and In vivo Study. Egyptian Journal of Botany. 0(0). 0–0. 25 indexed citations
16.
Xu, Shannan, Mahdy Elsayed, Gehan A. Ismail, et al.. (2019). Evaluation of bioethanol and biodiesel production from Scenedesmus obliquus grown in biodiesel waste glycerol: A sequential integrated route for enhanced energy recovery. Energy Conversion and Management. 197. 111907–111907. 77 indexed citations
17.
Ismail, Gehan A.. (2017). Biochemical composition of some Egyptian seaweeds with potent nutritive and antioxidant properties. Food Science and Technology. 37(2). 294–302. 59 indexed citations
18.
Ismail, Gehan A. & Mona M. Ismail. (2017). Variation in oxidative stress indices of two green seaweeds growing under different heavy metal stresses. Environmental Monitoring and Assessment. 189(2). 68–68. 25 indexed citations
19.
Ismail, Gehan A.. (2005). Modified technique for solving advance-delay differential systems. Mathematical and Computer Modelling. 41(2-3). 287–299. 1 indexed citations
20.
Ismail, Gehan A. & Iman Ibrahim. (1999). New efficient second derivative multistep methods for stiff systems. Applied Mathematical Modelling. 23(4). 279–288. 24 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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