To evaluate the influence of correlation between the wind outputs that may have on the system operation, the average of mean and standard deviation of bus voltage and line flow were investigated with the
correlation factor [rho] ranging from 0 (independent) to 1 (completely correlated).
The next micro-trip to add is selected according to the
correlation factor between the operation curve's frequency matrix and that of the actual driving cycle.
To investigate the performance of the PCA-RF method under different thresholds of the
correlation factor, the evaluation index values and run time of the model obtained for seven cases (no, >0, >0.5, >0.8, 0.9, 0.95, alone) are shown in Figure 3, where "no" means that the RF model does not perform PCA and "alone" means that modeling is only based on temperature observations at neighboring stations.
As in the
correlation factor, there are three dominant regions or clusters (vertical strips) at blades 6, 14, and 22.
The bounded index of a conventional
correlation factor in the random multi-cut sequence may be defined as follows:
Comparing the
correlation factor indicated that with the chosen signal threshold setting, AE tended to be more sensitive to crack formation than the X-ray computed micro-tomography.
where [omega]--the
correlation factor between [[tau].sub.s.u.i] and [f.sub.s.i]; [f.sub.s.i]--a shaft resistance determined by cone penetration test.
In addition, the best correlation between the adipose tissue accumulation and the glucose tolerance test was interestingly found for the VAT (
correlation factor = 0.867, P < 0.001, n = 20; Table 3), suggesting that VAT could represent a good biomarker of the hyperglycemic status in our experimental model.
where [t.sub.c] is the time
correlation factor, [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] denotes the correlation between transmit antennas, and [(x).sup.1/2] stands for the Hermitian square root of a matrix.