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Sigmoidal curve fits of (a) experimentally measured dynamic modulus and (b) dynamic modulus predicted by a partial least square analysis of NIR spectral data. Equilibrium moduli data are similar (not shown). The first derivative of the fitted experimental curve (c) and predicted curve (d) suggest that the maximum change in mechanical properties occurs at week 2.1 and 2.3, respectively. Color images available online at www.liebertpub.com/tea
