By applying inverse Fourier Transform in wave number
domain, the frequency response could be represented in space-frequency domain:
It has been found that, with the increase in wave number
, the phase velocity decreases rapidly in each of these figures under the considered values of various parameters.
Averaged curves from 32 repeated scans were obtained between wave numbers
of 4,000 and 400 [cm.
2 variation of natural frequencies (Hz) of an isotropic empty cylindrical shell have been compared before and after submerged against circumferential wave number
n for simply supported-simply supported end condition on elastic foundations and geometrical and material parameters as given in the caption of this figure.
Figure 2 gives the dispersion curve of Love-type wave against dimensionless wave number
in a piezoelectric structure in the case of electrically open circuit.
It is therefore useful to analyze the frequency and the vertical wave number
spectra of wind velocity and temperature fluctuations.
FT-IR spectra were collected in 30 s and in the wave number
region of 400-4000 cm (-1) .
For the continuously stratified liquid of the final depth both for its superficial wave and for its internal waves is typical the monotonous increase in frequency+ of a single mode at the growth of the wave number
k, the monotonous reduction of the phase speeds c f = + / n with the growth of k and at the increase of the mode number, and also excess of the phasespeeds over the group speeds = d+ / dn .
Likewise, NH of amide-II at finger print region in raw biomass (1547 cm-1) likely supported in electrostatic bindings with negatively charged chromate ions as evidenced by band shifting to low wave number
(1516 cm-1) in metal treated biomass.
Discrete dispersion relation for hp-version finite element approximation at high wave number
," SIAM J.
Here we can use the definition of the transverse wave number
And according to relation (4) and the rules mentioned in [14-17] for choosing the correct sign of wave number
, we will have:
The infrared spectra of the prepared compound were recorded using FT-IR (8300) Fourier Transform Infrared spectrophotometer of SHIMADZU Company as potassium bromide (KBr) discs in wave number
range of 4000-400 [cm.
Based on figure 2 can be seen the identification of bentonite which is the absorption peak at wave number
4 and table 2) in according with wave number
numerous compounds are found and their energy value are determined accordingly.