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 ...

National Weather Service offices around the country are on guard after recent threats to agency infrastructure — specifically Doppler weather radars — from a violent militia-style group ...

Meter wave radars can detect stealth aircraft because modern stealth aircraft are mainly designed to avoid detection by microwave radar, and are less stealthy to meter wave radar. They have low ...

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 ...

Synthetic impulse and aperture radar (SIAR) is new kind of advanced meter wave radar. Stealth techniques and anti-radiation missiles (ARM) raise challenges to military radar. Many research results ...

The main concerns with these storms are strong winds and heavy rain, with new rain accumulation possibly reaching around 2 ...