Faculty Members

Prof.Essam Roshdy Mostafa ElZahar

Professor Department of Mathematics (MOI:English) College of Science and Humanity Studies in Alkharj

Kharj
er.elzahar@psau.edu.sa

Curriculum Vitae
Publications

Publications

• El-Zahar, E. R., A. M. Alotaibi, A. Ebaid, A. F. Aljohani, and JF Gómez Aguilar. "The Riemann–Liouville fractional derivative for Ambartsumian equation." Results in Physics (2020): 103551.
• Y. S. Hamed, H. K. Alkhathami and E. R. El-Zahar, Utilizing Nonlinear Active Vibration Control to Quench the Nonlinear Vibrations of Helicopter Blade Flapping System, in IEEE Access, vol. 8, pp. 203003-203016, 2020, doi: 10.1109/ACCESS.2020.3035611.
• Shah, N.A.; Agarwal, P.; Chung, J.D.; El-Zahar, E.R.; Hamed, Y.S. Analysis of Optical Solitons for Nonlinear Schrödinger Equation with Detuning Term by Iterative Transform Method. Symmetry 2020, 12(11), 1850.
• M. Hassan , E. R El-Zahar, S.U. Khan, M. R.-Gorji, A. Ahmad, Boundary layer flow pattern of heat and mass for homogenous shear thinning hybrid-nanofluid: An experimental data base modeling, 2020, Numerical Methods for Partial Differential Equations, DOI: 10.1002/num.22575
• A. Ebaid, W.Alharbi , M. D. Aljoufi and E. R. El-Zahar, The exact solution of the falling body problem in three-dimensions: Comparative study, 2020, Mathematics, vol. 8(10), 1726.
• El-Zahar, E.R.; Rashad, A.M.; Seddek, L.F. Impacts of Viscous Dissipation and Brownian Motion on Jeffrey Nanofluid Flow over an Unsteady Stretching Surface with Thermophoresis. Symmetry 2020, 12, 1450.
• Mo Faheem, Arshad Khan and E.R. El-Zahar, On Some Wavelet Solutions of Singular Differential Equations Arising in the Modelling of Chemical and Biochemical Phenomena, Advances in Difference Equations, 2020, Article number: 526 (2020)
• H. Demiray and E. R. El-Zahar, 2020, Analytical Approximate Solutions for Nonplanar Burgers Equations by Weighted Residual Method, Results in Physics, Vol 18, 2020, 103293. https://doi.org/10.1016/j.rinp.2020.103293
• E. R El-Zahar, A. M. Alotaibi,A.Ebaid, Dumitru Baleanu and José Tenreiro Machado, Y. S. Hamed, Absolutely Stable Difference Scheme for a General Class of Singular Perturbation Problems, Advances in Difference Equations, 2020, 411 https://doi.org/10.1186/s13662-020-02862-z
• E. R. El-Zahar, A. M. Algelany and A. M. Rashad, "Sinusoidal Natural Convective Flow of Non-Newtonian Nanoliquid Over a Radiative Vertical Plate in a Saturated Porous Medium," in IEEE Access, vol. 8, pp. 136131-136140, 2020, doi: 10.1109/ACCESS.2020.3009197.
• E.R. El-Zahar, A.A. Gaber, A.F. Aljohani, J. Tenreiro Machado, A. Ebaid, Generalized Newtonian fractional model for the vertical motion of a particle, Applied Mathematical Modelling 88 (2020) 652–660. https://doi.org/10.1016/j.apm.2020.06.054
• Y. S. HAMED, HAMMAD ALOTAIBI, and E. R. EL-ZAHAR, Nonlinear Vibrations Analysis and Dynamic Responses of a Vertical Conveyor System Controlled by a Proportional Derivative Controller, IEEE Access, 2020, vol 8, pp 119082-119093. https://doi.org/10.1109/ACCESS.2020.3005377.
• EL-Zahar, E.R., Rashad, A.M., Saad, W. and Seddek, L.F.. Magneto-Hybrid Nanofluids Flow via Mixed Convection past a Radiative Circular Cylinder. Sci Rep,2020, vol 10, pp,1-13, https://doi.org/10.1038/s41598-020-66918-6
• H. Demiray, E. R. El-Zahar and S, A. Sha, On progressive wave solution for non-planar KdV equation in a plasma with q-nonextensive electrons and two oppositely charged ions,
TWMS Journal of Applied and Engineering Mathematics, 2020, 10(2), 532-546.
• Wafaa Alharbi1, Abdulrahman Aljohani1, Essam El-Zahar and Abdelhalim Ebaid,(2020) Exact Solution of Non-Newtonian Blood Flow with Nanoparticles through Porous Arteries: A Comparative Study , Computers, Materials & Continua CMC, vol.63, no.3, pp.1143-1157, 2020
• E.R. El-Zahar.; Ebaid, A.; Aljohani, A.F.; Tenreiro Machado, J.; Baleanu, D. Re-Evaluating the Classical Falling Body Problem. Mathematics 2020, 8, 553.
• E.R. El-Zahar, A Piecewise Approximate Analytical Solution For Nonlinear Transient Circuits Using Adaptive Step Size L-Stable Integration Scheme, Advances in Differential Equations and Control Processes, Volume 23, Number 1, 2020, Pages 47-60.
• E.R. El-Zahar, Numerical solution of singularly perturbed BVPs using an optimal fitted one-step integration scheme via initial value method, International Journal of Engineering Research and Technology, 2020, 13(4), 827-831.
• E. R. El-Zahar. Approximate analytical solution of singularly perturbed boundary value problems in MAPLE. AIMS Mathematics, 2020, 5(3): 2272-2284. doi: 10.3934/math.2020150.
• E. R. El-Zahar , About Central Difference-Techniques in Solving SPBVPs, International Journal of Engineering Research and Technology. ISSN 0974-3154 Vol.13, No.3 (2020), pp. 575-579 © International Research Publication House. https://dx.doi.org/10.37624/IJERT/13.3.2020.575-579
• A .M. Algelany and E. R. El-Zahar, On Fourth Order Centered Difference Scheme for Linear SPBVPs, International Journal of Engineering Research and Technology, 2020, 13(2), 364-367.
• E. R. El-Zahar and A .M. Algelany, On Three-Point Finite Difference Techniques for SPBVPs, International Journal of Engineering Research and Technology, 2020, 13(2), 229-232.
• Mohammed Shqair, Mohammed Al-Smadi , Shaher Momani and Essam El-Zahar,(2020) Adaptation of Conformable Residual Power Series Scheme in Solving Nonlinear Fractional Quantum Mechanics Problems, Applied Sciences. 2020, 10, 890; doi:10.3390/app10030890.
• E. R. El-Zahar and Rizk Yassen, Adaptive Step-size Nonlinear Explicit Integration Algorithm for ODEs, International Journal of Engineering Research and Technology, 2019, 3151-3155.
• E.R. El-Zahar, Cubic Spline Solution of Nonlinear Singularly Perturbed Boundary Value Problems via Initial Value Method, International Journal of Engineering Research and Technology, 2019, 12(12), 3145-3150.
• E. R. El-Zahar , J. T. Machado and A. Ebaid , A New Generalized Taylor-Like Explicit Method for Stiff Ordinary Differential Equations, Mathematics 2019, 7(12), 1154; https://doi.org/10.3390/math7121154
• El-Zahar, E. R., Rashad, A. M., & Seddek, L. F. (2019). The Impact of Sinusoidal Surface Temperature on the Natural Convective Flow of a Ferrofluid along a Vertical Plate. Mathematics, 7(11), 1014. https://doi.org/10.3390/math7111014
• Algehyne, E.A., El-Zahar, E. R., Alharbi, F.M. and Ebaid, A., 2019. Development of analytical solution for a generalized Ambartsumian equation, AIMS Mathematics, 2020, 5(1): 249-258. doi: 10.3934/math.2020016.
• Khaled, S.M., El-Zahar, E.R. and Ebaid, A., 2019. Solution of Ambartsumian Delay Differential Equation with Conformable Derivative. Mathematics, 7(5), p.425. https://doi.org/10.3390/math7050425
• A. Ebaid , E.R. El-Zahar , A.F. Aljohani , Bashir Salah, Mohammed Krid , J.T. Machado, 2019, Exact solutions of the generalized nonlinear Fokas-Lennells equation, Results in Physics 14 (2019) 102472. https://doi.org/10.1016/j.rinp.2019.102472
• A. Ebaid , E.R. El-Zahar , A.F. Aljohani , Bashir Salah, Mohammed Krid , J.T. Machado, 2019, Analysis of the two-dimensional fractional projectile motion in view of the experimental data, Nonlinear Dynamics, pp,1-10. https://doi.org/10.1007/s11071-019-05099-y
• S.M.M. EL-Kabeir, E. El-Zahar, M. Modather, Rama S. R. Gorla, and A.M. Rashad., 2019, Unsteady MHD Slip Flow of a Ferrofluid over an Impulsively Stretched Vertical Surface, AIP Advances 9, 045112 (2019). https://doi.org/10.1063/1.5088610
• E. R. El-Zahar and H. Demiray, 2019, Analytical solutions of cylindrical and spherical dust ion-acoustic solitary waves, Results in Physics, 13(2019), 102154. https://doi.org/10.1016/j.rinp.2019.02.090

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Prof.Essam Roshdy Mostafa ElZahar

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Prof.Essam Roshdy Mostafa ElZahar

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