The analysis technique presented in this paper is used directly to modify physical parameters of the weak substructures.
This paper is engaged in identifying weak substructures of a vibration system and modifying the parameters of the system using analysis technique of unit volume energy.
For any main vibration mode of a system, defining the substructures with large unit volume energy as weak substructures, the modification method of physical parameters of the system is presented.
STRUCTURE revealed a best-fit value of K = 3, suggesting rather weak populations substructure (Figure 1a).
In addition, some weedy rice populations (e.g., HLJ-1, HLJ-2, and HLJ-3) showed a weak genetic substructure, as estimated by differences in correlation between paternal genotypes detected in progeny based on multilocus and single-locus measurement.
Our data were also collected across a very broad geographic range where some weak population substructure, perhaps owing to isolation by distance, could cause a Wahlund effect (Hedrick 2005); when we analyzed lodgepole pine at the stand level, we did find an average reduction in F to 0.060 (data not shown).
Our results indicate that rivers may not always act as impermeable barriers to gene flow, as we detected only a weak genetic substructuring in relation to the Richelieu River.
Despite taking into account the species' weak hierarchical (regional) substructure (ΦCT = −0.049), overall levels of population divergence still remained high (ΦSC = 0.236; P < 0.001; Table 2).
In case of a weak attraction to substructures, kinetic operators can be split between bulk motion and motion along substructures [24].
It is shown, that the SEA representations is only suitable for very weak coupling between substructures, while an inverse representation does not show the observed limitations.
As expected, the satellite reflections are weaker than adjacent substructure reflections.
