Figure 7.

(a) Frequency-dependent resistance; (b) frequency-dependent reactance graphs, where $mean{ℛ}_{p,T_i}\left(f\right)$ is the measured resistance, and $mean{\aleph }_{p,T_i}\left(f\right)$ is the measured reactance for various plants (plants 1 to 4) with an average try as a function of frequency.