Doppler Ultrasonic Flow Meters Doppler ultrasonic flow meters operate using the Doppler Effect, which was a principle documented by the Austrian born physicist and mathematician Christian Johann ...

Clinical Study Published: 07 April 2004 Reproducibility of blood flow velocity measurements using colour decoded Doppler imaging E T Matthiessen, O Zeitz, G Richard & M Klemm Eye 18, 400–405 ...

The claim: NEXRAD, doppler radar and HAARP were used to control path of Hurricane Helene A Sept. 27 Instagram post (direct link, archive link) includes a video of a weather radar map showing a ...