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. Author manuscript; available in PMC: 2022 Jul 1.

Published in final edited form as: J Physiol. 2021 Jun 8;599(13):3295–3312. doi: 10.1113/JP281225

Figure 3. — Rising phase of the waveform of a WT rod. (A) The curves show the first four terms of the Taylor series expansion of ${\hat{g}}_{y} (t)$ computed with Eq. 9 and WT rod parameters from Table 2. The leading-order term is $\frac{1}{6} \frac{μ_{r h} μ_{p d e} μ_{t r}}{{\hat{g}}_{y, peak}} t^{3}$ . (B) The red curve shows the data for the averaged WT rod waveform from Fig. 2A. The green curves show quadratic fits to data and ${\hat{g}}_{y} (t)$ performed with the fitting function $\frac{1}{2} \hat{A} {(t - t_{e f f})}^{2}$ . The fitted values for the waveform amplification constant are Â ≈ 97s⁻² (data) and Â ≈ 135s⁻² $({\hat{g}}_{y})$ . The blue continuous curve displays ${\hat{g}}_{y} (t)$ when the parameter μ_tr is assumed to be very large. The leading order term of the Taylor expansion of ${\hat{g}}_{y} (t)$ for large μ_tr is $\frac{1}{2} \frac{μ_{r h} μ_{p d e}}{{\hat{g}}_{y, peak}} t^{2}$ (blue dashed curve).