Figure 6.

The measurements $\overline{G}\left(t_i\right)$ of the ‘real’ relaxation modulus $G\left(t\right)$ (49) (red circles) from Example I and the model ${\overline{G}}_N^{\gamma }\left(t\right)$ (27) for $N$ measurements of the relaxation modulus corrupted by normally distributed additive independent noises with zero mean value and standard deviation $\sigma$: (a) $\sigma =2 \mathrm{P}\mathrm{a}$ and $N=20$; (b) $\sigma =2 \mathrm{P}\mathrm{a}$ and $N=500$; (c) $\sigma =4 \mathrm{P}\mathrm{a}$ and $N=20$; (d) $\sigma =4 \mathrm{P}\mathrm{a}$ and $N=500$; (e) $\sigma =6 \mathrm{P}\mathrm{a}$ and $N=20$; and (f) $\sigma =6 \mathrm{P}\mathrm{a}$ and $N=500$.