Chrome Extension
WeChat Mini Program
Use on ChatGLM

Influence of Local Thermodynamic Non-Equilibrium to Photothermally Induced Acoustic Response of Complex Systems

Slobodanka Galovic, Aleksa I. Djordjevic, Bojan Z. Kovacevic,Katarina Lj. Djordjevic, Dalibor Chevizovich

Fractal and Fractional(2024)

Cited 0|Views3
No score
Abstract
In this paper, the time-resolved model of the photoacoustic signal for samples with a complex inner structure is derived including local non-equilibrium of structural elements with multiple degrees of freedom, i.e., structural entropy of the system. The local non-equilibrium is taken into account through the fractional operator. By analyzing the model for two types of time-dependent excitation, a very short pulse and a very long pulse, it is shown that the rates of non-equilibrium relaxations in complex samples can be measured by applying the derived model and time-domain measurements. Limitations of the model and further directions of its development are discussed.
More
Translated text
Key words
heat transfer,irreversibility,local non-equilibrium,time delayed equation,fractional calculus,subdiffusion
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined