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[(a)–(c)] Optical microscope images of rough lactose pellets, respectively, 400 grit, 150 grit, and P80 grit. (d) First derivative of normalized reflection spectral amplitudes of the samples. Inset: spectral amplitudes (S.A.) averaged over five disjoint P80 lactose reflection measurements (solid line) and the numerical logarithmic fit (dashed).
MRA of P80 rough lactose using MODWT. Vertically offset plots show the detail vectors, , that when added together reconstruct the original data series, . The absorption resonance of lactose near 0.54 THz is evident in and . The vertical axis is dimensionless.
(a) A periodic extension of the P80 lactose spectral amplitude (solid line) along with the smooth part, , (dotted) after the implementation of the MRA. (b) Vertically offset detail vectors, . The vertical axis is dimensionless.
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