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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.
Draw A graph for an IV multiple infusion of a drug, and label on the graph where the trough (predose) blood draw would be collected and where the peak (postdose) blood draw would b
What are differentiations of the cell membrane? In some types of cells, the cell membrane presents differentiations that are essential for the specific functions of the cells.
habitat, habit, cell wall chemistry, reason why cell wall like this of Archaebacteria , eubacteria,fungi,algae,bryophytes ,pteridophyes, gymnosperms , angiosperms..
Sunlight is absorbed by chlorophyll molecules. Chlorophyll is a porphyrin in that nitrogen atoms are coordinated to a magnesium ion instance for it is a magnesium porphyrin. This
Explain biological aspects of nutrition Traditionally nutritionists have focused largely (or almost fully) on . However, we have realized over the years, that physiological bio
It is defined as the amount of heat liberated when one unit mass of fuel is burnt and the products of combustion are allowed to escape. LCV = HC
Caryopsis - Development of Fruit In cereals each carpel has one ovule and therefore the mature fruit has, just one seed. During maturation, very little or no cell divisions ar
EPIDERMIS - Ectodermal in origin. Outer part of skin. Made up of stratified epithelium. Branches of sensory nerves present. More branches on lips, tips of fingers. B
Q. Value of biodiversity? Today, there is widespread concern for conservation of wild animals and plants. One might wonder why there is so much concern about protecting other s
Q. Why is it said that during photosynthesis carbon dioxide is improved to form glucose? During photosynthesis carbon dioxide is energetically improve with hydrogen from water.
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