The volume flowmeter is a simple, noninvasive Doppler ultrasound technique that provides accurate measurement of carotid artery diameter and flow. The device provides a useful laboratory test that can aid significantly in diagnosis of carotid stenosis and dementia.

A new structure is proposed for a DN25-type ultrasonic gas flow meter with V-shape double sound channel arrangement. The field characteristics are analyzed including velocity curves the four lines, profiles different cross-sections of meter, and streamlines transducer sections. metering flowmeter measured using Venturi nozzle device. When pipeline rate less than 2.26 m/s, pipe installation does...

Objectives : The objectives of this study are to assess the degree uniformity flow rate flowing into four grit chamber for actual waste water treatment and improve hydraulic structure existing distribution channel.Methods Mobile ultrasonic meter was used measure each chambers, CFD technique suggest several improvements enhancing evenness.Results Discussion From results measurement using flowmet...

Acoustical Driving Forces (ADF), induced by propagating waves in a homogeneous and inhomogeneous lossy fluid (suspension), are determined compared depending on the concentration of suspended particles. Using integral equations scattering theory, single particle (inclusion) ADF was calculated as flux momentum density tensor components over heterogeneity surface. The possibility negative indicate...