Dr. Ethar A. Abdel Salam

Assistant Professor

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Dr. Ethar A.Abdel Salam graduated from the faculty of science, Al-Azhar University in 2012, after that, she obtained the degree of M. Sc. in applied mathematics Piezo-Thermoelasticity, from Zagazig University in 2015. Dr. Ethar ,also, obtained a Ph.D. degree from Cairo University in applied mathematics Piezo-Thermoelasticity in 2020. So far, she has finished 14 articles and published 12 of the articles in international journals.

She is currently working at Nile University in the School of Engineering and Applied Sciences by teaching certain mathematical subjects and assisting students in applying their learnings by conducting projects while helping them use their results in the form of scientific researches, in which the students can publish in conferences and scientific journals.

Dr. Ethar Abdel Salam participated in many scientific conferences like Eighth International Scientific Conference (Environment, Development and Bioinformatic), Eighth International Conference on Mathematics and Information Sciences, International Mathematics Day Mathematics for Development, Ninth Undergraduate Research Forum, One-Day Conference in Mathematical Analysis and Egyptian Junior Researcher Competition. She also contributed in some of the conferences by taking part in the organization team, and in 2020 she obtained the Obada Prize for Distinguished Students.


1) Ethar Ahmed Abd ElSalam Ahmed received the The best Ph.D. thesis award in "Applied Mathematics" for from The Egyptian Mathematical Society. 2) Ethar Ahmed Abd ElSalam Ahmed received the Obada-Prize 2020 for Distinguished Students for from Ninth International Conference on Mathematics and Information Sciences

Recent Publications

Magnetic field effect on piezo-thermoelastic wave propagation in a half-space within dual-phase-lag

The current work is concerned with the study of wave propagation in a half-space of a piezo-thermoelastic material under a bias tangential magnetic field within dual-phase-lag (DPL). This is relevant to the design and performance of piezoelectric devices working under a bias magnetic field, for example, the DC magnetic field piezoelectric sensors widely used in various areas of technology. The

Energy and Water

Thermoelastic wave propagation in a piezoelectric layered half-space within the dual-phase-lag model

We investigate linear, thermoelastic wave propagation in a layered piezoelectric material composed of a slab bonded to a half-space substrate of a dissimilar material, within dual-phase-lag model and under thermomechanical loads. One of the aims of the present work is to formulate a set of boundary conditions that is compatible with the field equations. Normal mode technique is used to obtain a

Energy and Water

Numerical solution to a 2D-problem of piezo-thermoelasticity in a quarter-space within the dual-phase-lag model

We present a numerical solution by finite differences to a linear, plane, initial-boundary-value problem of thermo-piezoelasticity in a quarter-space, within the dual-phase-lag model. Motion is excited by a one-period heat regime applied to one boundary of the medium. The relation between the two relaxation times is clarified in order to obtain wave-like solutions. An explicit, three-level

Mechanical Design

Two-dimensional heat conduction in a rigid thermal conductor within the dual-phase-lag model by one-sided Fourier transform

An exact analytical solution in closed form is obtained for a two-dimensional initial-boundary-value problem of heat wave propagation in a thick slab of an anisotropic rigid thermal conductor within the dual-phase-lag model. One-sided Fourier transform technique is used to obtain a formal solution. The method requires an essential change of the dependent variable in order to guarantee a suitable

Energy and Water
Software and Communications

Piezothermoelasticity in an infinite slab within the dual-phase-lag model

The system of equations of the generalized piezothermoelasticity in anisotropic medium with dual-phase-lag model is established. The exact expressions for displacement components, the temperature, stress components, electric potential and electric displacements are given in the physical domain and illustrated graphically. These expressions are calculated numerically for the problem. Comparisons

Mechanical Design