This was a useful method for detecting tornadoes before the advent of modern Doppler radar systems. A conventional radar transmitter sends out microwave pulses, and when this energy strikes an object, ...
Feb. 25, 2004 — Pulmonary hypertension increases mortality in sickle cell disease, according to the results of a study published in the Feb. 26 issue of the New England Journal of Medicine. Doppler ...
Users of Amazon's video-capable Echo products can now watch video news briefs, check the latest forecast video or even stream the radar from WRAL. Users of Amazon's video-capable Echo products can now ...
Transthoracic echocardiography utilizes both visual (qualitative) and quantitative tools to evaluate cardiac structure and function Traditional techniques, such as two-dimensional and Doppler imaging, ...
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