Effect of Thermoelectric Coupling Parameter in a Semiconducting Medium Under Photothermal Theory

2017 ◽  
Vol 6 (1) ◽  
pp. 157-162
Author(s):  
Praveen Ailawalia ◽  
Amit Singla
Keyword(s):  
Temperature Distribution ◽  
Carrier Density ◽  
Normal Force ◽  
Coupling Parameter ◽  
Normal Mode Analysis ◽  
Displacement Component ◽  
Exact Expression ◽  
Mode Analysis ◽  
Normal Displacement ◽  
Component Force

The purpose of this paper is to study the two dimensional deformation in a semi-infinite semiconducting medium. The deformation is caused subjected to a mechanical force applied along the interface of elastic layer of thickness h and a semiconducting medium. Normal Mode analysis has been used to obtain the exact expression of normal displacement, normal force stress, temperature distribution and carrier density. The effect of this force and thermoelectric coupling parameter on the displacement component, force stress, temperature distribution and carrier density has been depicted graphically.

scholarly journals Plane Strain Deformation In A Thermoelastic Microelongated Solid With Internal Heat Source

2015 ◽  
Vol 20 (4) ◽  
pp. 717-731
Author(s):  
P. Ailawalia ◽  
S.K. Sachdeva ◽  
D.S. Pathania
Keyword(s):  
Temperature Distribution ◽  
Heat Source ◽  
Normal Mode Analysis ◽  
Internal Heat ◽  
Internal Heat Source ◽  
Displacement Component ◽  
Mode Analysis ◽  
Plane Strain Deformation ◽  
Gl Theory ◽  
Component Force

Abstract The purpose of this paper is to study the two dimensional deformation due to an internal heat source in a thermoelastic microelongated solid. A mechanical force is applied along an overlaying elastic layer of thickness h. The normal mode analysis has been applied to obtain the exact expressions for the displacement component, force stress, temperature distribution and microelongation. The effect of the internal heat source on the displacement component, force stress, temperature distribution and microelongation has been depicted graphically for Green-Lindsay (GL) theory of thermoelasticity.

scholarly journals Response of Thermoelastic Micropolar Cubic Crystal under Dynamic Load at an Interface

2017 ◽  
Vol 22 (1) ◽  
pp. 5-23 ◽  
Author(s):  
P. Ailawalia ◽  
S.K. Sachdeva ◽  
D. Pathania
Keyword(s):  
Temperature Distribution ◽  
Normal Force ◽  
Normal Mode Analysis ◽  
Mode Analysis ◽  
Normal Displacement ◽  
Two Dimensional ◽  
Cubic Crystal ◽  
Cubic Symmetry ◽  
Thermoelastic Solid ◽  
Coupled Stress

AbstractThe purpose of this paper is to study the two dimensional deformation in a thermoelastic micropolar solid with cubic symmetry. A mechanical force is applied along the interface of a thermoelastic micropolar solid with cubic symmetry (Medium I) and a thermoelastic solid with microtemperatures (Medium II). The normal mode analysis has been applied to obtain the exact expressions for components of normal displacement, temperature distribution, normal force stress and tangential coupled stress for a thermoelastic micropolar solid with cubic symmetry. The effects of anisotropy, micropolarity and thermoelasticity on the above components have been depicted graphically.

scholarly journals A two dimensional fibre reinforced micropolar thermoelastic problem for a half-space subjected to mechanical force

2015 ◽  
Vol 42 (1) ◽  
pp. 11-25
Author(s):  
Praveen Ailawalia ◽  
Sunil Sachdeva ◽  
Devinder Pathania
Keyword(s):  
Temperature Distribution ◽  
Half Space ◽  
Couple Stress ◽  
Normal Mode Analysis ◽  
Displacement Component ◽  
Mechanical Force ◽  
Mode Analysis ◽  
Two Dimensional ◽  
Thermoelastic Medium ◽  
Component Force

The purpose of this paper is to study the two dimensional deformation of fibre reinforced micropolar thermoelastic medium in the context of Green-Lindsay theory of thermoelasticity. A mechanical force is applied along the interface of fluid half space and fibre reinforced micropolar thermoelastic half space. The normal mode analysis has been applied to obtain the exact expressions for displacement component, force stress, temperature distribution and tangential couple stress. The effect of anisotropy and micropolarity on the displacement component, force stress, temperature distribution and tangential couple stress has been depicted graphically.

scholarly journals Elastic Wave Motions and an Electromagnetic Field for a Photothermal Theory with Two Temperature under Hydrostatic Initial Stress

2016 ◽  
Author(s):  
Khaled Lotfy ◽  
Wafaa Hassan
Keyword(s):  
Initial Stress ◽  
Carrier Density ◽  
Harmonic Wave ◽  
Normal Mode Analysis ◽  
Displacement Component ◽  
Mode Analysis ◽  
Coupling Parameters ◽  
Temperature Parameter ◽  
Hydrostatic Initial Stress ◽  
Two Temperature

This paper investigates the influence of magnetic field for a two dimensional deformations on a two temperature problem at the free surface of a semi-infinite semiconducting medium under the effect of mechanical force during a photothermal theory and the effect of hydrostatic initial stress on the medium. The Harmonic Wave Method (Normal Mode Analysis) has been used to obtain the equations of elastic waves, heat conduction equation, quasi-static electric field, carrier density, two temperature coefficient, ratios, and constitutive relationships for the thermo-magnetic-electric medium. The effects of several parameters as thermoelastic and thermoelectric coupling parameters and two temperature parameter of this force on the displacement component, force stress, carrier density and temperature distribution has been depicted graphically.

scholarly journals Plane strain problem in a rotating microstretch thermoelastic solid with microtemperatures

2017 ◽  
Vol 44 (1) ◽  
pp. 51-82 ◽  
Author(s):  
Praveen Ailawalia ◽  
Sunil Sachdeva ◽  
Devinder Pathania
Keyword(s):  
Heat Flux ◽  
Couple Stress ◽  
Normal Force ◽  
Normal Mode Analysis ◽  
Moment Tensor ◽  
Mode Analysis ◽  
Normal Displacement ◽  
Two Dimensional ◽  
Dimensional Problem ◽  
Thermoelastic Solid

A two-dimensional problem in an infinite microstretch thermoelastic solid with microtemperatures subjected to a mechanical source is studied. The medium is rotating with a uniform angular velocity ??. The normal mode analysis is used to obtain the exact expressions for the component of normal displacement, microtemperature, normal force stress, microstress tensor, temperature distribution, heat flux moment tensor and tangential couple stress. The effect of microrotation and stretch on the considered variables are illustrated graphically.

scholarly journals A thermoelastic microelongated layer immersed in an infinite fluid and subjected to laser pulse heating

2019 ◽  
Vol 23 (1) ◽  
pp. 233-240 ◽  
Author(s):  
Praveen Ailawalia ◽  
Amit Singla
Keyword(s):  
Laser Pulse ◽  
Pulse Heating ◽  
Normal Mode Analysis ◽  
Displacement Component ◽  
Mode Analysis ◽  
Pulse Rise Time ◽  
Analysis Technique ◽  
Analytic Expressions ◽  
Laser Pulse Heating ◽  
Component Force

Abstract The present investigation deals with the twodimensional deformation because of laser pulse heating in a thermoelastic microelongated layer with a thickness of 2d, which is immersed in an infinite nonviscous fluid. Normal mode analysis technique is applied to obtain the analytic expressions for displacement component, force stress, temperature distribution, and microelongation. The effect of elongation and laser pulse rise time on the derived components have been depicted graphically.

Thermal effect on transverse vibrations of a nonhomogeneous rectangular thin plate subjected to a known temperature distribution

2020 ◽  
Vol 44 (3) ◽  
pp. 452-460
Author(s):  
Mohamed N.M. Allam ◽  
Ismail M. Tayel
Keyword(s):  
Temperature Distribution ◽  
Thin Plate ◽  
Thermal Stresses ◽  
Plate Theory ◽  
Normal Mode Analysis ◽  
Functionally Graded ◽  
Mode Analysis ◽  
Phase Lag ◽  
Rectangular Thin Plate ◽  
Transverse Vibrations

In this work, a model of thermoelasticity based upon the Kirchhoff–Love plate theory is constructed for studying the thermoelastic vibration of an arbitrary functionally graded rectangular thin plate subjected to a temperature distribution. The problem is solved in the context of the theory of dual-phase-lag of thermoelasticity. The plate is taken to be clamped on two opposite edges; one of those edges is subjected to a given temperature distribution, while the other is thermally insulated. The normal mode analysis is employed to find exact expressions for temperature, deflection, thermal stresses, and bending moments. As an illustrative example, the results were presented graphically for a plate made of a silicon material to show the consistency of the results.

Three-Dimensional Analysis of a Thermo-Viscoelastic Half-Space due to Thermal Shock in Temperature-Rate-Dependent Thermoelasticity

2016 ◽  
Vol 32 (4) ◽  
pp. 401-411 ◽  
Author(s):  
S. Kumar ◽  
J. S. Sikka ◽  
S. Choudhary
Keyword(s):  
Normal Mode Analysis ◽  
Three Dimensional ◽  
Displacement Component ◽  
Mode Analysis ◽  
Field Equations ◽  
Finite Speed Of Propagation ◽  
Rate Dependent ◽  
Coupled Field Equations ◽  
Temperature Rate ◽  
Thermoelastic Waves

AbstractThe present paper is aimed at studying the effects of viscosity and time on the propagation of thermoelastic waves in a homogeneous and isotropic three-dimensional medium whose surface is acted upon by a thermal load under the purview of temperature-rate-dependent thermoelasticity. The normal mode analysis technique has been employed to solve the resulting non-dimensional coupled field equations and hence the exact expressions for displacement component, stress, temperature field and strain are obtained. The problem is further illustrated by computing the numerical values of the field variables for a copper- like material and depicting them graphically. Numerical results predict finite speed of propagation for thermoelastic waves.

scholarly journals Triple- Diffusive Convection in a Micropolar Ferrofluid in the Presence of Rotation

2013 ◽  
Vol 18 (2) ◽  
pp. 307-327
Author(s):  
S. Chand
Keyword(s):  
Spin Diffusion ◽  
Fluid Layer ◽  
Coupling Parameter ◽  
Normal Mode Analysis ◽  
Sufficient Conditions ◽  
Mode Analysis ◽  
Viscous Effect ◽  
Free Boundaries ◽  
Diffusive Convection ◽  
Solute Gradient

This paper deals with the theoretical investigation of the triple-diffusive convection in a micropolar ferrofluid layer heated and soluted below subjected to a transverse uniform magnetic field in the presence of uniform vertical rotation. For a flat fluid layer contained between two free boundaries, an exact solution is obtained. A linear stability analysis theory and normal mode analysis method have been employed to study the onset convection. The influence of various parameters like rotation, solute gradients, and micropolar parameters (i.e., the coupling parameter, spin diffusion parameter and micropolar heat conduction parameter) on the onset of stationary convection has been analyzed. The critical magnetic thermal Rayleigh number for the onset of instability is also determined numerically for sufficiently large value of the buoyancy magnetization parameter M1 (ratio of the magnetic to gravitational forces). The principle of exchange of stabilities is found to hold true for the micropolar fluid heated from below in the absence of micropolar viscous effect, microinertia, solute gradient and rotation. The oscillatory modes are introduced due to the presence of the micropolar viscous effect, microinertia , solute gradient and rotation, which were non-existent in their absence. In this paper, an attempt is also made to obtain the sufficient conditions for the non-existence of overstability.

Application of the ESMACS Binding Free Energy Protocol to a Highly Varied Ligand Dataset: Lactate Dehydogenase A

2019 ◽  
Author(s):  
David Wright ◽  
Fouad Husseini ◽  
Shunzhou Wan ◽  
Christophe Meyer ◽  
Herman Van Vlijmen ◽  
...  
Keyword(s):  
Free Energy ◽  
Surface Area ◽  
Binding Free Energy ◽  
Normal Mode Analysis ◽  
Binding Mode ◽  
Accessible Surface Area ◽  
Solvent Accessible Surface Area ◽  
Mode Analysis ◽  
Energy Calculation ◽  
Accessible Surface

<div>Here, we evaluate the performance of our range of ensemble simulation based binding free energy calculation protocols, called ESMACS (enhanced sampling of molecular dynamics with approximation of continuum solvent) for use in fragment based drug design scenarios. ESMACS is designed to generate reproducible binding affinity predictions from the widely used molecular mechanics Poisson-Boltzmann surface area (MMPBSA) approach. We study ligands designed to target two binding pockets in the lactate dehydogenase A target protein, which vary in size, charge and binding mode. When comparing to experimental results, we obtain excellent statistical rankings across this highly diverse set of ligands. In addition, we investigate three approaches to account for entropic contributions not captured by standard MMPBSA calculations: (1) normal mode analysis, (2) weighted solvent accessible surface area (WSAS) and (3) variational entropy. </div>

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