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The NYQUIST LIIMIT-It is a sampling phenomenon, which limits the maximum fiequemcy shift measurement to one half of the sampling frequency (PRF).
By its nature, pulse wave Doppler is a sampling system while continuous wave Doppler is not. The nyquist limit is a theoretical maximum frequency that a
If the frequency shift is higher than the Nyquist frequency, aliasing occurs; i.e., the Doppler spectrum is cut off the Nyquist frequency and the remaining frequency shift is recorded on the opposite side of baseline.
The PRF varies inversely with the depth of the sample volume the shallower the location of the sample volume, the higher the PRF and Nyquist frequency. In other words, higher velocities can be recorded without aliasing by pulse wave Doppler if the sample volume is closer to transducer.
Viscosity and Plasticity of colloidal particle Various degrees of viscosity and plasticity are encountered in colloids. Viscosity may be described as resistance to pouring.
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Briefly Describe about the hypokalemia? Hyperkalemia occurs when serum K levels are greater than 5 1n ML. High plasma K results in cardiac arrhythmias. A K level of 8.0 m MIL c
The cystic fibrosis allele occurs in European populations with q=0.02, what fraction of this population can be expected to have cystic fibrosis?
Reproductive System of Asteroidea Sexes are separate in several asteroids. There are ten (10) gonads, two in each arm. They emerge tuft-like or as cluster of grapes. Mature go
The vascular tone increases as the arterial size decreases. The tone at any time reflects the effects of excitory and inhibitory pathways. Neurotransmitters, physical forces like s
What is the Implant Placement The failure to place an implant in the correct location in the buccolingual plane, mesiodistal plane and the inciso cervical plane results in the
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