نتایج جستجو برای: velocimeter
تعداد نتایج: 348 فیلتر نتایج به سال:
Tricuspid valve regurgitation was assessed quantitatively by measuring blood flow velocity in the vena cava using a pulsed Doppler velocimeter. A non-invasive index of regurgitation was obtained by calculating the ratio between the maximum amplitudes of the systolic and diastolic components of the velocity curves. The index was compared with the angiographic grading of regurgitation in 70 patie...
Speeding is one of the leading causes traffic crashes worldwide. Radar velocimeter widely used in capture monitoring road overspeed violations, which can effectively reduce probability accidents and protect people’s life property safety to greatest extent. As a new type radar velocimeter, multitarget (MTRV) monitor speed more than two vehicles at same time. However, verification method device M...
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