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. 2017 Feb 18;17(2):399. doi: 10.3390/s17020399

Figure 8.

Figure 8

(a) Model validation for the oxidation measurement of the WTO samples; (b) Model validation for the AN measurement of the WTO samples; (c) Model validation for the AN measurement of the MGO samples; (d) Model validation for the water content measurement of the AGO samples. RMSE: root mean square error.