Compared to the traditional high frequency asymptotic (HFA) method, when the wave frequency is not very high but in the high frequency regime, the NSDP method has improved the PO integral accuracy by one to two digits.
However, the fact that the frequency of MDD in the subgroup with HT is not very different from the frequency of MDD in the sub group without HT is only a partial answer given the sample size.
The squared multiple correlation coefficient (R2) between the transmissibility and the 16 variables (10 postures, 6 body segments) was not very high at resonance frequencies in the range 4 12·5 Hz but above 25 Hz, 50% of the variability in the transmissibility was due to the postures and the body segments.
The relationship between hydraulic conductivity and fracture frequency was not very statististically significant (R2: 0.062–0.672; σest: 0.61 1.575).
The unload and reload stiffness are not very sensitive to the loading frequency, for the range of values analysed.
Amplitude attenuation and phase delay of the signal ranging from 10 Hz to 107 Hz are extracted in the experiment part, showing that little negative effects will generate when the signal frequency is not very high.
However, in LOS situations, the frequency selectivity is not very distinct and can potentially be neglected for the cost of a slight frequency-dependent mismatch of the decomposition.
These parameter choices refer to Case 1 (Section 3), and the assumption h ≪ ▮1/k1▮is satisfied though not very well at the largest frequencies.
As it has been shown that the modal frequencies are not very sensitive to the presence of a breathing crack, alternative detection techniques have been proposed.
The space plasma is characterised by the ratio of plasma frequency to electron gyrofrequency, in this case, the local plasma frequency was, mainly, a little greater than the electron plasma, but it was also frequently observed that these two characteristic frequencies were not very different from one another.
