The frequency, direction and type of motion used were identified from the models.
With decreasing the composite thickness, the thickness resonant peaks of the piezoelectric composite shift toward high frequency direction, and no obvious high-order and coupling resonant peaks appear.
It is described in what manner the service stress spectra can be derived on the basis of the finite element method (FEM) results and the data about wind activity and intensity (duration and frequency, direction, speed).
The new primal bases are then selected and simplified in the form of the Δdp-t operator in the time direction and the Δdp-f operator in the frequency direction.
At the 1st stage, the Wiener filter is implemented in the frequency direction, which separates the received multiuser signals and outputs the tentative estimate corresponding to an individual user.
After two severe instances of aggression in the group of spider monkeys housed at Chester Zoo, we developed a questionnaire to investigate the frequency, direction and possible reasons for aggression in zoo-housed spider monkeys.
The simulation and experimental results show that the natural frequencies can be shifted to not only to the smaller direction but also to the higher frequency direction, which could be altered from 39 Hz to 41.8 Hz.
The diagrams of the measured wind data for three meteorological stations over a period of two years (wind speed, frequency, direction), wind shear coefficient, the mean monthly and annual wind speed profile for every location are presented.
The original action balance equation is modified to facilitate absorbing boundary conditions along the frequency direction; this modification enforces periodicity at the frequency boundaries so that the fast convergence of Fourier-collocation holds.
The conventional spectral method can solve the Boltzmann collision operator for binary gas mixtures but with a computational cost of the order m3rN6, where mr is the mass ratio of the heavier to the lighter species, and N is the number of frequency nodes in each frequency direction.
