A. A. El-Bary

• Prof.Dr
• Vice President at Arab Academy for Science, Technology, and Maritime Transport

This study investigates the impact of variable thermal conductivity and magnetic field effects on magneto-photo-thermoelastic wave propagation in hydro-microelongated semiconductor media. A novel theoretical framework is developed by integrating microelongation effects with hydrodynamic interactions, which are rarely considered in microstructured s...

This study investigates the coupled effects of Hall currents, fractional heat conduction, and laser-pulsed excitation on wave propagation in a hydrodynamic semiconductor medium according to the photo-thermoelasticity theory. The normal mode method is employed to solve the governing equations, and graphical representations illustrate the impact of k...

This work explores the influence of Hall current on the thermoelastic behavior of nanostructured (nonlocal) plates made of an elastic material, modeled under a double temperature (two-temperature theory) framework, and subjected to ramp-type heating. The dual-temperature model accounts for the separate thermal dynamics, while the nonlocal elasticit...

This work explores the influence of Hall current on the thermoelastic behavior of nanostructured (nonlocal) plates made of an elastic material, modeled under a double-temperature (two-temperature theory) framework, and subjected to ramp-type heating. The dual-temperature model accounts for the separate thermal dynamics, while the nonlocal elasticit...

This study addresses the problem of thermoelastic interaction in functionally graded isotropic unbounded media owing to a timed pulse within the framework of generalized thermoelastic theory without energy dissipation (TEWOED). Functionally graded material (FGM, or material with spatially variable material characteristics) has its governing equatio...

This study examines the thermo‐electro‐elastic responses of a long hollow cylindrical piezoelectric material due to a pulse heating flux on its surface. Formulations suggested by Lord and Shulman for generalized piezothermoelastic systems are used. The response of the vessel is modeled under axisymmetric conditions, leading to the formulation of th...

This work applies the generalized magneto-electro-thermoelasticity model to investigate an isotropic thermoelastic medium with an infinite medium containing a cylindrical cavity, which is exposed to a uniform magnetic field along the axis. The cavity boundary is exposed to exponentially decaying pulse boundary heat flux. The solution is derived usi...

We conducted surveys of Mediterranean beaches in Egypt, Morocco, and Tunisia including 37 macro-litter (> 25 mm) and 41 meso-litter (5–25 mm) assessments. Our study identified key litter items and assessed pollution sources on urban, semi-urban, tourist, and semi-rural beaches. Macro-litter concentration averaged 5032 ± 4919 pieces per 100 m or 1.7...

This study introduces a generalized photothermal model to analyze the coupled thermo-hydromechanical behavior of a poroelastic, nonlocal semiconductor medium subjected to laser excitation. The medium is modeled as a saturated, dynamic, poroelastic half-space under time-harmonic loads, including thermal and mechanical forces and plasma electron dist...

The primary objective of this study is to investigate the stochastic plasma-mechanical-elastic wave propagation at the boundary of an elastic half-space in a semiconductor material using photo-thermoelasticity theory. The novelty of this work lies in the combination of stochastic simulation with temperature-dependent electrical conductivity and var...

We explore theoretically the photoacoustic wave propagation created by the photoexcited carrier diffusion in the thermoelastic domain. Consideration is given to the coupling of acoustic and thermomechanical waves. Under the influence of photothermal and thermoelasticity theories, the governing equations are derived. The photoacoustic wave creation...

This research investigates the influence of rotation on the propagation of optical acoustic waves caused by the motion of an optical carrier in an elastic thermal environment. The study employs theoretical analysis to derive governing equations tailored to a nonlocal semiconductor medium, incorporating the interaction between acoustic waves and the...

This study applies the generalized photo-thermoelasticity theory to investigate thermo-hydro-mechanical interactions in a poroelastic half-space elastic semiconductor material with variable properties. The model represents a novel approach, treating the material as a uniform, fully saturated, poroelastic semiconductor half-space in alignment with t...

This paper examines the transition towards a Circular Economy (CE) in Saudi Arabia and its potential spillover effects on the Arab region. The concept of a Circular Economy is based on stimulating production that reduces waste and pollution, keeping revenues and consumption expenditures within a closed circle. The paper will follow the numerous pat...

The integration of IoT (Internet of Things) devices has emerged as a technical cornerstone in the landscape of modern agriculture, revolutionising the way farming practises are viewed and managed. Smart farming, enabled by interconnected sensors and technologies, has surpassed traditional methods, giving farmers real-time, granular information into...

This study investigates the two-dimensional deformations within the framework of the two-temperature thermoelasticity theory, focusing on the interplay between laser pulse heating, acoustic pressure, and the resultant elastic material response. Our exploration is centered on the understanding of how acoustic waves, generated by laser pulses, influe...

This work investigates, using the Laplace transforms, the influence of thermal relaxation time in the piezo-thermoelastic rod under pulse heat flux. For the piezoelectric medium, the generalized piezothermoelastic fundamental equations are developed. The analytical solutions are expressed in the transformation domain using Laplace transforms. Lapla...

In this study, the impact of rotation on the transmission of optical acoustic waves, arising from the movement of the optical carrier within an elastic thermal environment, is examined through theoretical analysis. The theoretical framework incorporates the interaction between acoustic waves and thermomechanics to formulate governing equations spec...

This research is mainly concerned with understanding the propagation behavior of waves within complex elastic media, which leads to improving the properties of elastic materials to benefit from them practically. This research investigates the interaction between acoustic waves and thermal sources in a rotating elastic medium. The effect of the spre...

For nanobeam resonators, it is of the utmost importance to have a solid understanding of how to tune the energy damping and thermal quality factor. The periods of thermal and mechanical relaxation are quite important when it comes to adjusting energy damping. Within the scope of this study, the novelty of this work is constructing an analytical the...

This paper presents a methodology for determining the optimal parameters of a photocatalysis process for treating pharmaceutical wastewater. Three parameters are considered: pH value, catalyst dosages, and reaction time to boost the amoxicillin degradation efficiency (ADE). The proposed methodology contains two stages: fuzzy modelling and a paramet...

In this research, we focus on the free-surface deformation of a one-dimensional elastic semiconductor medium as a function of magnetic field and moisture diffusivity. The problem aims to analyze the interconnection between plasma and moisture diffusivity processes, as well as thermo-elastic waves. The study examines the photo-thermoelasticity trans...

This work examines the complex interaction between acoustic pressure, photothermal excitation, and magnetic fields in a nonlocal semiconductor material according to the dual phase lag thermoelastic model. An extensive theoretical framework is employed to investigate the dynamic behavior of the semiconductor system, encompassing a wide range of phys...

The purpose of this study is to investigate the complexities of two-dimensional deformations by employing the two-temperature nonlocal thermoelasticity theory. The research focuses on the coupling that occurs between mechanical waves, acoustic pressure, and the subsequent elastic material response. Understanding the ways in which the acoustic press...

In the present study, a theoretical model that interconnects plasma waves, thermal dynamics, and elastic vibrations has been applied to examine the propagations of waves in semiconductors as a result of photo-thermal effects. A study was conducted on a semiconducting material that is both isotropic and elastic, displaying uniform thermoelastic prop...

The theory of photo-thermoelasticity describes how heating or elastic microstructure mechanical deformation can modify a material’s optical-thermal properties. This theory particularly highlights the effect of microtemperature on elasticity and efficient heat transport. This work provides a new theoretical framework for thermooptical elastic materi...

This article aims to employ an analytical approach to analyze the thermal and mechanical responses of biological tissues due to instant heating, considering the dual phase-lag (DPL) model. To effectively carry out thermal treatment procedures, it is imperative to have a deep understanding of both the mechanism of heat transmission and the resulting...

This work offers numerical solutions within the framework of bio-thermoelastic model, addressing the bioheat transfer in living tissues due to laser irradiations, considering varying thermal conductivity. To carry out thermal treatment procedures efficiently, it is crucial to have a comprehensive understanding of both the thermal transmissions mech...

This paper presents original research into the effects of the Moore-Gibson-Thompson (MGT) effect on the diffusion of moisture in semiconductor material. The use of heat transfer theory in the context of plasma (optical excitation) phenomena in the semiconductor material is described by the fractional Moore-Gibson-Thompson model. The effect of rotat...

Optimal sizing and management of hybrid wind turbine-diesel-battery system for reverse osmosis seawater desalination in NEOM city is the objective of the paper. Therefore, the paper explored the different factors to optimize and introduce a technoeconomic evaluation and energy management of a stand-alone wind turbine (WT) system, diesel generator (...

Modern homes are experiencing unprecedented levels of convenience because of the proliferation of smart devices. In order to improve communication between smart home devices, this paper presents a novel approach that particularly addresses interference caused by different transmission systems. The core of the suggested framework is an intelligent I...

This study focuses on investigating the deformation of a one-dimensional elastic nonlocal semiconductor medium. The aim is to understand how the magnetic field and moisture diffusivity affect this deformation. The research aims to analyze the connection between plasma and moisture diffusivity processes in a rotational field, as well as thermo-elast...

This article aims to provide theoretical predictions for the thermal reactions of human tissues during tumor thermotherapy when exposed to laser irradiation and an external heat source. For the construction of a theoretical study of bioheat transfer, the selection of a suitable thermal model capable of accurately predicting the required thermal res...

This work introduces a new mathematical model for viscothermoelastic semiconducting solid spheres of ceramic materials considering the photothermal interaction using three types of the Green–Naghdi heat conduction model. The outer surface of a solid sphere is loaded thermally using ramp-type heat as a boundary condition. Following that, Laplace tra...

In this study, we investigated the effect of a rotation field and magnetic field on a homogeneous photo-thermoelastic nonlocal material and how its thermal conductivity changes as a result of a linearly distributed thermal load. The thermal conductivity of an interior particle is supposed to increase linearly with temperature under the impact of la...

The study takes into account the diffusion of photo-excited carriers in the presence of a laser pulse and theoretically investigates photoacoustic wave propagation in the thermoelastic domain. In a nonlocality medium, the phenomena of thermomechanical and acoustic wave interaction are considered. Thermoelasticity, photothermal, and photoacoustic th...

The manuscript provides a thorough solution for the propagation of waves in a generalized homogeneous and isotropic thermo-photo-electric semiconductor medium. The main focus lies in the analysis of the two-dimensional (2D) issue in the presence of a magnetic field while adding optoelectronic excitation mechanisms. The governing equations exhibit c...

This paper presents the results of an investigation that focuses on the stochastic wave propagation that occurs within an elastic medium when the thermoelectric properties are taken into consideration. It has been found that there is a clear association between the characteristics of electrical conductivity and thermal conductivity. As a result, th...

The Thomson influence on semiconductors can be studied by investigating the connection between the presence of thermoelectric and magnetic fields and porosity and the photothermal transport mechanism. Elastic waves, voids, magnetic fields, and thermoelectric effects in plasma are investigated. The governing equations were analyzed for a uniformly d...

The heat transport that takes place in living tissue during magnetic tumor hyperthermia is described in this study using the nonlocal bioheat model in spherical coordinates. In magnetic fluid hyperthermia, it is crucial to regulate the therapeutic temperature. This paper suggests a hybrid numerical approach that employs the Laplace transforms, chan...

This study examines a new model for a solid semiconductor porosity medium with variable thermal conductivity under photo-thermoelastic conditions using two-temperature theory. A normal mode analysis is carried out to solve the equations in two dimensions analytically while taking into account the linear relationship between thermal conductivity and...

The article utilizes the fractional bioheat model in spherical coordinates to explain the transfer of heat in living tissues during magnetic hyperthermia treatment for tumors. Maintaining therapeutic temperature is crucial in magnetic fluid hyperthermia, which requires accurate estimations of power dissipation to determine the appropriate number of...

This paper presents a theoretical investigation of linear thermal conductivity temperature-dependent coupled elasto-thermoelectronic diffusion (ETD) waves in a micro-temperature semiconductor, specifically focusing on the effects of photo-excited processes. The governing equations are formulated for a semi-infinite silicon wafer, which serves as a...

In this study, we investigate the effect of a rotation field on a homogeneous photo-thermoelastic nonlocal material and how its thermal conductivity changes as a result of a linearly distributed thermal load. The thermal conductivity of an interior particle is supposed to increase linearly with temperature. Microelastic, non-local semiconductors ar...

This research paper presents the generalized micropolar thermo-visco-elasticity model in an isotropic elastic medium that has two temperatures with conformable fractional order theory. The whole elastic medium rotates at a constant angular velocity. The generalized theory of thermoelasticity with one relaxation time is used to describe this model....

This study simulates the coronavirus infection (Covid-19) which is given as a mathematical model based on a set of ordinary differential equations. We provide this numerical treatment and simulation by using the finite element method (FEM). The proposed model is reduced to a set of algebraic equations using the FEM. The goal of this research is to...

In that paper, a new study has been carried out on previous studies of one of the most important mathematical models that describe the global economic movement, and that is described as a non-linear fractional financial model of awareness, where the studies are represented at the steps following: One: The schematic of the model is suggested. Two: T...

The main object of this work is to analyze viscothermoelastic homogeneous and isotropic nanobeams under the effect of mechanical damage. A Green-Naghdi type-II model of thermoelasticity has been constructed under simply supported conditions. Moreover, the Laplace transforms have been applied for the governing differential equations. Tzou iteration...

This paper provides an overview of the circular economy in Egypt. With the country facing significant environmental challenges, a circular economy approach can offer sustainable solutions to Egypt's environmental challenges by addressing issues like limited resources, waste generation, and a growing population in an eco-friendly and long-term persp...

A novel model is presented in this study for the situation of wave interference in a non-local stimulated semiconductor medium, including thermal, plasma, and elastic waves. Moisture diffusion in one dimension (1D) has been included in the governing equations by varying the non-local medium's thermal conductivity under the impact of laser pulse acc...

In the present work, the semiconductor material is used to study the moisture diffusivity when a modified Moore–Gibson–Thompson (MGT) model is taken into account. The influence of moisture concentration is included in the governing equations throughout the photothermal transfer process. Based on the dissimilar relaxation durations of the coupled op...

In this work, a new model is described for the case of interference between thermal, plasma and elastic waves in a non-local excited semiconductor medium. The governing equations have been put under the influence of moisture diffusion in one dimension (1D) when the moisture thermal conductivity of the non-local medium is taken in variable form. Lin...

In this paper, we construct a new model based on the coupling of thermoelasticity, plasma, and microelongation effect under volumetric absorption of laser pulse. Three different thermoelasticity theories are applied to construct the new model in a 2D thermoelastic semiconducting medium whose properties are temperature-dependent. The medium surface...

Outlined here is an innovative method for characterizing a layer of microelongated semiconductor material under excitation. Fractional time derivatives of a heat equation with a rotational field are used to probe the model during photo-excitation processes. Micropolar-thermoelasticity theory, which the model implements, introduces the microelongati...

Indroduction: The novel model of a non-local elastic semiconductor material that is microelongated is created. The process of photothermal transfer is responsible for the stimulation of the material. Photo-thermoelastic theories are used when the thermal conductivity is changed for the non-local medium. Under the influence of laser pulses, the effe...

An innovative concept of a microelongated non-local semiconductor material is developed. According to photothermal transport processes, the material is stimulated. When the thermal conductivity of the non-local medium is changed, the photo-thermoelasticity theories are used. The microelongation instance and the interference between the photothermoe...

Using a novel model, we investigate how moisture diffusivity affects the free surface of an elastic non-local semiconductor medium subjected to a 1D deformation. The purpose of this topic is to examine the interplay between the processes of moisture diffusivity and the plasma, thermo-elastic waves in the presence of laser pulses. The investigation...

To examine the effects of the nonlocal thermoelastic parameters in a nanoscale semiconductor material, a novel nonlocal model with variable thermal conductivity is provided in this study. The photothermal diffusion (PTD) processes in a chemical action are utilized in the framework of the governing equations. When elastic, thermal, and plasma waves...

This article deals with the study of disturbance that travels through the transversely isotropic medium in the form of waves. The particles of the considered medium have an additional property of small-scale internal rotation along with macroscopic translational deformation. This extra translational freedom causes the medium to be micropolar in nat...

In the present work, the interaction between electrons and holes in semiconductor materials is investigated. According to the excitation process, the optical-elastic-thermal-diffusion (OETD) process is considered when the medium is exposed to a strong magnetic field and laser pulses. Photo-elastic and photo-electronics deformations are taken into a...

The current study focuses on one-dimensional (1D) deformation in an excited microelongated semiconductor medium impacted by optoelectronics with exponential laser-pulsed heat. Diffusion effect is considered in a photothermal problem of a semiconducting media. Microelongated optoelectronics and a broad variety of concepts have been introduced. Appro...

This study simulates the start of coronavirus infection using a mathematical model based on ordinary differential equations (Covid-19). Additionally, provide the numerical treatment and simulation of this model using the finite element approach (FEM). The goal of this research is to stop and slow the spread of a sickness that is ravaging the globe....

The current study establishes the generalized micropolar thermo-visco-elasticity model in an isotropic elastic material with two temperatures. At a uniform angular velocity, the entire elastic medium is rotated. The description is implemented under five generalized thermoelasticity theories: Lord-Shulman (L-S) with one relaxation time, Green-Lindsa...

The impact of moisture diffusivity on the free surface of an elastic non-local semiconductor medium for a one-dimensional (1D) deformation is examined using a novel model. The problem is designed to investigate how moisture diffusivity processes and plasma, thermo-elastic waves interact when laser pulses are present. The study is carried out while...

A novel technique is used to study the moisture diffusivity influence in the free surface of an elastic semiconductor medium according to a one-dimensional (1D) deformation. The problem is formulated to study the coupled between the plasma, thermo-elastic waves, and moisture diffusivity. The investigation is conducted during a photothermal transpor...

The governing equations for microelongated semiconductors are presented in a novel mathematical–physical way. The model is examined in line with the photogenerated transport processes when the microelongated elastic non-local semiconductor medium is powered. The primary governing equations reveal the interplay between elastic, thermal, and plasma w...

The main goal of this research is to provide a novel model that describes an optically heated layer of an excited non-local microelongated semiconductor material. In a rotating field, the model is examined as the photo-excitation processes occur. The model presents the microelongation scalar function, which describes the microelement processes acco...

In this work, a novel model is presented that describes thermal diffusion processes through non-local semiconductor materials. The material under study is subjected to the influence of a strong magnetic field, which creates a Hall current. Interference between the excited electrons and the excited holes of a non-local semiconductor that had been ex...

This paper investigates an uncommon technique by using the influence of the random function (Weiner process function), on a two-temperature problem, at the free surface of the semiconducting medium, by using the photo-thermoelasticity theory. Using the Silicon material as an example of a semiconducting medium under the influence of a magnetic field...

A unique methodology due to the effect of stochastic heating is utilized to study the Moisture Diffusivity influence of an elastic semiconductor medium under the effect of photo-thermoelasticity theory. Accurately, random processes are applied at the boundary of the semiconductor medium. The governing equations are expressed in the one-dimensional...