I think it's Maggie and Nick
Answer:
The correct answer is - Changing PRF.
Explanation:
Pulsed wave Doppler uses the principle of Doppler effect that objects that move changes the characteristic of sound waves. It is creates images by sending the short and quick pulses of the sound, it helps in the determining the velocity of blood in a exact time and location.
PRF or pulse repetition frequencies, is a Doppler sampling frequency that can affect the acoustic exposure of the scanning. PRF is measured in KHz.
Thus, the correct answer is - changing PRF.
All living beings are made up of basic units called cells; for this reason it is said that the cell is the structural unit of living beings. In the cell, all the functions and chemical reactions necessary for life are carried out; in addition, it participates in the reproduction processes
Explanation/Answer: If you begin to be safe at home you can learn to be safe in other places
