dc.contributor.author | Agarwal, Komal | |
dc.contributor.author | Ojha, Shivam | |
dc.contributor.author | Dalmo, Roy Ambli | |
dc.contributor.author | Seternes, Tore | |
dc.contributor.author | Shelke, Amit | |
dc.contributor.author | Melandsø, Frank | |
dc.contributor.author | Habib, Anowarul | |
dc.date.accessioned | 2024-10-07T09:11:45Z | |
dc.date.available | 2024-10-07T09:11:45Z | |
dc.date.issued | 2024-06-06 | |
dc.description.abstract | Understanding the biomechanics of fish scales is crucial for their survival and adaptation. Ultrasonic Cscan measurements offer a promising tool for non-invasive characterization, however, existing literature lacks
uncertainty analysis while evaluating acoustic impedance. This article presents an innovative integration of
uncertainty into the analytical framework for estimating stochastic specific acoustic impedance of salmon fish
scale through ultrasonic C-scans. In this study, the various types of uncertainties arising due to variation
in biological structures and aging, measurement errors, and analytical noises are combined together in the
form of uncertain reflectance. This uncertain reflectance possesses a distribution which is derived using a
theory of waves by assuming suitable stochasticity in wavenumber. This distribution helps in development
of a stochastic-specific acoustic impedance map of the scales which demonstrates the possible deviations
of impedance from mean value depending on uncertainties. Furthermore, maximal overlap discrete wavelet
transform is employed for efficient time–frequency deconvolution and Kriging for spatial data interpolation
to enhance the robustness of the impedance map, especially in scenarios with limited data. The framework
is validated by accurately estimating the specific acoustic impedance of well-known materials like a pair of
target medium (polyvinylidene fluoride) and reference medium (polyimide), achieving over 90% accuracy.
Moreover, the accuracy of the framework is found superior when compared with an established approach in
the literature. Applying the framework to salmon fish scales, we obtain an average specific acoustic impedance
of 3.1 MRayl along with a stochastic map visualizing the potential variations arising from uncertainties. Overall,
this work paves the way for more accurate and robust studies in fish scale biomechanics by incorporating a
comprehensive uncertainty analysis framework. | en_US |
dc.identifier.citation | Agarwal, Ojha, Dalmo, Seternes, Shelke, Melandsø, Habib. Uncertainty analysis of Altantic salmon fish scale's acoustic impedance using 30 MHz C-Scan measurements. Ultrasonics. 2024;142 | en_US |
dc.identifier.cristinID | FRIDAID 2282663 | |
dc.identifier.doi | 10.1016/j.ultras.2024.107360 | |
dc.identifier.issn | 0041-624X | |
dc.identifier.issn | 1874-9968 | |
dc.identifier.uri | https://hdl.handle.net/10037/35073 | |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.journal | Ultrasonics | |
dc.rights.accessRights | openAccess | en_US |
dc.rights.holder | Copyright 2024 The Author(s) | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0 | en_US |
dc.rights | Attribution 4.0 International (CC BY 4.0) | en_US |
dc.title | Uncertainty analysis of Altantic salmon fish scale's acoustic impedance using 30 MHz C-Scan measurements | en_US |
dc.type.version | publishedVersion | en_US |
dc.type | Journal article | en_US |
dc.type | Tidsskriftartikkel | en_US |
dc.type | Peer reviewed | en_US |