On the other hand, low-pass filtering of the feedback signal may introduce excessive phase lags (phase delays) that tend to destabilize closed-loop control [ 145].
Now we'll introduce phase equilibria.
The classical two-field, two-fluid model treats each phase as a whole, which may introduce considerable uncertainties when a phase is comprised of significantly different forms, e.g., liquid droplets and liquid film, and/or vapor bubbles and continuous vapor core.
Different circumstances of walking, like turns, walking surfaces, obstacles, variations in walking speed, and dual tasking, may introduce random fluctuations in phase-dependent local dynamic stability λ between walking bouts.
For instance, annealing at 900 °C for 1 h, the h-TiAl2 phase is formed with lamellar morphology along with the matrix phase whereas further annealing may introduce r-TiAl2 into this crystals (Hayashi et al. 2002).
More importantly, this method avoids the usage of gold catalyst, which is commonly used in vapor-phase methods and may introduce the residual catalyst atoms into the ZnO rod arrays[11 13].
Lateral bulk tissue motion was not corrected, though it may introduce significant errors in calculating the displacement Δ z, by incorrectly integrating the phase differences from different locations of the image.
Conserved regions longer then the average fragment length (450 bp) may introduce ambiguity in the assembly process due to a lack of direct evidence of sub-genomes phasing across the conserved region.
Chicago tax lawyer Kaye Thomas speculates the IRS may introduce a fifth method triple category averaging to accommodate a new, lower rate for very long term gains that will be phased in beginning next year.
But that may introduce its own problems".
