Fig. A2


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(a) Temporal evolution profiles of average temperatures in the coarse and fine speckled regions, assuming emissivity as unity (equal to 1), (b) Zoomed view highlighting temperature discrepancies due to variations in speckle density in Coarse and Fine zones and (c) Representative thermograms captured by the IR camera, illustrating the measurement zones for two tests conducted respectively at 105 °C and 115 °C.

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