In fluid dynamics, a flow with periodic variations is known as pulsatile flow, or as Womersley flow. The flow profiles was first derived by John R. Womersley...
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Tinnitus (redirect from Pulsatile tinnitus)
pulse, known as pulsatile tinnitus or vascular tinnitus. Pulsatile tinnitus is usually objective in nature, resulting from altered blood flow or increased...
82 KB (8,494 words) - 01:09, 21 February 2025
two main categories – pulsatile pumps, which mimic the natural pulsing action of the heart, and continuous-flow pumps. Pulsatile VADs use positive displacement...
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of the pulsatile flow frequency in relation to viscous effects. It is named after John R. Womersley (1907–1958) for his work with blood flow in arteries...
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characteristics of acceleration and visco elasticity of artery wall under pulsatile flow conditions (physical meaning of I * as a parameter of progressive behaviors...
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of 2 to 4. It has also been shown that the device works better with pulsatile flows. Coandă effect Check valve Diode Labyrinth seal Static mixer Valve...
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Abouezzi, Joanna; Ristroph, Leif (17 May 2021). "Early turbulence and pulsatile flows enhance diodicity of Tesla's macrofluidic valve". Nature Communications...
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Ventricular Assist Devices (LVAD) and hemodialysis that replace pulsatile flow with continuous blood flow. Examining diastolic function during a cardiac stress...
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Engler; Hong; Miller (May 2001). "Comparison of Flow Measure Techniques during Continuous and Pulsatile Flow". 2001 BE Undergraduate Projects. Department...
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fluid mechanics Womersley number – Dimensionless expression of the pulsatile flow frequency in relation to viscous effects Weissenberg number – Dimensionless...
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batteries are carried in a shoulder-bag. EXCOR is a paracorporeal, pulsatile flow VAD. The device provides left ventricular, right ventricular or biventricular...
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formulation. In translational pharmacology, perfusion platforms restore pulsatile blood flow in isolated human organs, enabling direct measurement of absorption...
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Kripfgans, J. Rubin, A. Hall and J. Fowlkes, "Mean Volume Flow Estimation in Pulsatile Flow Conditions," Ultrasound in Med. & Biol., vol. 35, pp. 1880-1891...
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Hemodynamics (redirect from Blood flow)
pumping action of the heart. The pumping action of the heart generates pulsatile blood flow, which is conducted into the arteries, across the micro-circulation...
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wrote this in the "Handbook of Physiology" in 1963 in work entitled "Pulsatile Flow in the Vascular System". So, C = Δ V Δ P {\displaystyle C={\frac {\Delta...
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Windkessel, propagating ventricular contraction and smoothing out the pulsatile flow, and the smooth muscle within the tunica media contributes to this property...
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by Léandre Pourcelot [1], is a measure of pulsatile blood flow that reflects the resistance to blood flow caused by microvascular bed distal to the site...
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Christian; John, Thomas (2021-06-29). "Optimizing pressure-driven pulsatile flows in microfluidic devices". Lab on a Chip. 21 (13): 2605–2613. doi:10...
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by the pulsatile flow of blood through vessels. Nitric oxide produced by EcNOS, maintains the diameter of blood vessels and proper blood flow to tissues...
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adverse events, and greater reliability with continuous-flow LVADs compared to pulsatile-flow devices. As of mid 2015, Thoratec has the only FDA-approved...
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PMID 7471364. Agarwal, R. K.; Okpara, E (2010). "Numerical Study of Pulsatile Flow through Models of Vascular and Aortic Valve Stenoses and Assessment...
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pressure, general weakened connective tissue or as a result of the pulsatile flow of cerebrospinal fluid on weakened spinal dura. Dural ectasia is common...
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Abouezzi, Joanna; Ristroph, Leif (2021-05-17). "Early turbulence and pulsatile flows enhance diodicity of Tesla's macrofluidic valve". Nature Communications...
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pump for pulsatile flow transport : Part 1: Flow characteristics of the microimpedance pump. Part 2: A systematic study of steady and pulsatile transport...
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as pulsatile flow in the umbilical vein, absent or reversed end-diastolic flow in the umbilical artery, increased pulsatility index, or reversed flow in...
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Aorta (section Blood flow and velocity)
heart and smooth out the pulsatile nature created by the heart. Aortic pressure is highest at the aorta and becomes less pulsatile and lower pressure as...
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out-of-plane motion. In particular, wide-field imaging of pulsatile motion induced by blood flow can be measured on the thumb by digital holography. The...
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Cerebrospinal fluid (CSF) flow MRI is used to assess pulsatile CSF flow both qualitatively and quantitatively. Time-resolved 2D phase-contrast MRI with...
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heart is pulsatile, and the venous inflow to the heart is continuous and non-pulsatile. But without functioning atria, venous flow becomes pulsatile, and...
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of Leeds in 1996. Her dissertation, Coronary artery haemodynamics: pulsatile flow in a tube of time-dependent curvature, was supervised by Tim Pedley...
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