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Назив: On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures
Аутори: Popovic A.
Šoškić, Zlatan
Stojanovic, Zoran
Cevizovic, Dalibor
Galovic, Slobodanka
Часопис: Physica Scripta
Датум издавања: 1-апр-2012
Сажетак: If the model of the photoacoustic (PA) response of an investigated system contains many unknown parameters, as is the case with multilayered samples, then the inverse procedure for the calculation of the parameters is highly sensitive to experimental noise. The problem cannot be solved by developing the experimental setup or by data acquisition methods, but only by an improvement of the theoretical approach. This paper presents an analysis of the applicability of the effective medium approximation to the PA response of multilayered samples. It has been shown that the theory is not applicable to the general case, and explicit expressions for the effective values of thermal diffusivity and heat propagation speed have been derived for some special cases. © 2012 The Royal Swedish Academy of Sciences.
URI: https://scidar.kg.ac.rs/handle/123456789/9821
Тип: review
DOI: 10.1088/0031-8949/2012/T149/014066
ISSN: 00318949
SCOPUS: 84860436231
Налази се у колекцијама:Faculty of Mechanical and Civil Engineering, Kraljevo

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