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. 2013 Sep 10;13(9):12070–12092. doi: 10.3390/s130912070

Figure 16.

Figure 16.

(a) Evolution of: the sensors response and of soil water content in function of time; (b) The sensors response in function of soil water content; comparison between the pellets fired at 900 °C and 1,000 °C (soil temperature = 45.0 °C ± 0.8 °C, soil density about 1.28 g/cm3).