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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.
DIFFERENCES BETWEEN PROKARYOTIC & EUKARYOTIC CELLS S . N o . CHA R AC T ERS P R O K AR Y O T I C CELL
Purpose of Supervision: Purpose: To help the personnel to grow, to know themselves and what they need in order to render the most efficient service and to give them assistance
what does the sperm cell fuses with?
POPUL A TIO N GENETICS AND EVOLUTION- Population is the number of all individual of same species in a defined area at a particular time. As per modem synthetic theory pop
Discuss FASB and IASB. Comment on at least two specific aspect of the two standard setting boards and their role in setting accounting.
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Lamellar compaction and remodeling (6 to 18 weeks) A remodeling phase is initiated in which hematopoietic-derived osteoclastic cells form cutting cones will remove the establis
Explain about Folic acid Folic acid occurs as a yellow or orange-yellow, microcrystalline powder, almost without odour and taste. Water content of folic acid is up to 8.5%. Fol
Q. What is rigor mortis? Dead bodies are at first limp. Many hours after death, skeletal muscles undergo a partial contraction that fixes the joints. This condition, called rig
Explain the Management of Middle - Third Perforation Same to coronal one-third perforation, except defects located more deeper from the access cavity. For successfully
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