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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.
Explain two ways in which a changing climate may impact the nutrient cycle. Predict the effect on turnover.
general characteristics of cynobacteria
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Why is the human placenta referred to as haemochorial type? Name the hormone it secretes to facilitate parturition.
Q. What is the difference between smallpox (variola) and measles? The Smallpox is a viral infection like measles. The Smallpox is transmitted by respiratory secretions, saliva
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Describe how the International Astronomical Union defines a planet. Also include why Pluto is no longer considered a planet.
In the fruit fly Drosophila, a rudimentary wing called "vestigial" and dark body color called "ebony" are inherited at independent loci and are recessive to their dominant wild-typ
Zygote - Embryogenesis The fertilized egg or zygote is situated at the micropylar end/pole of the embryo sac, its basal (micropylar) end is attached to the embryo sac wall and
Chylomicrons, the widest of the lipoproteins, are synthesized in the intestine. They including ingested triacylglycerols to other tissues, mainly skeletal muscle and adipose tissue
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