نتایج جستجو برای: thermoelastic diffusion

تعداد نتایج: 165256  

Journal: :Advances in Condensed Matter Physics 2023

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

Journal: :Mathematics 2022

The current work aims to investigate elasto-thermodiffusive wave propagation in a homogeneous, isotropic, and thermally conducting excited semiconductor medium. two-temperature theory is utilized the context of linear photo-thermoelasticity (PTE) semiconductors. Thermal elastic memories found equations for heat, motion, charge carrier field are taken into account. governing applied according ma...

Journal: :Int. J. Math. Mathematical Sciences 2005
S. K. Roy Choudhuri Nupur Bandyopadhyay

A study is made of the propagation of time-harmonic plane thermoelastic waves of assigned frequency in an infinite rotating medium using Green-Naghdi model (1993) of linear thermoelasticity without energy dissipation. A more general dispersion equation is derived to examine the effect of rotation on the phase velocity of the modified coupled thermal dilatational shear waves. It is observed that...

2003
S. BAEK A. R. SRINIVASA

We investigate three classes of constraints in a thermoelastic body: (i) a deformationtemperature constraint, (ii) a deformation-entropy constraint, and (iii) a deformationenergy constraint. These constraints are obtained as limits of unconstrained thermoelastic materials and we show that constraints (ii) and (iii) are equivalent. By using a limiting procedure, we show that for the constraint (...

Journal: :Physics in medicine and biology 1997
P C Beard T N Mills

Time-resolved photoacoustic spectroscopy has been used to characterize post mortem arterial tissue for the purpose of discriminating between normal and atheromatous areas of tissue. Ultrasonic thermoelastic waves were generated in post mortem human aorta by the absorption of nanosecond laser pulses at 436, 461 and 532 nm produced by a frequency doubled Q-switched Nd:YAG laser in conjunction wit...

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