Results 31 to 40 of about 43,390 (300)

Geometrically Reduced Modelling of Pulsatile Flow in Perivascular Networks

open access: yesFrontiers in Physics, 2022
Flow of cerebrospinal fluid in perivascular spaces is a key mechanism underlying brain transport and clearance. In this paper, we present a mathematical and numerical formalism for reduced models of pulsatile viscous fluid flow in networks of generalized
Cécile Daversin-Catty    +3 more
doaj   +1 more source

The Dynamics of Pulsatile Blood Flow [PDF]

open access: yesCirculation Research, 1954
The theory of dynamic fluid motion involving the forces manifested by mass, acceleration, viscous friction and vessel wall tension have been considered and studied when arterial blood flow and pressure are pulsatile. These studies and considerations have resulted in the conclusion that arterial blood pressure is dependent upon all of these parameters ...
openaire   +2 more sources

Investigation of spiral blood flow in a model of arterial stenosis [PDF]

open access: yes, 2009
The spiral component of blood flow has both beneficial and detrimental effects in human circulatory system [Stonebridge PA, Brophy CM. Spiral laminar flow in arteries? Lancet 1991; 338: 1360–1].
Paul, M.C., Larman, A.
core   +1 more source

The life and times of Donald A. McDonald

open access: yesArtery Research, 2007
Donald A. McDonald (1917–1973) was a pioneer in hemodynamics. He was Oxford educated and served on the faculty of Universities in both Great Britain and the USA.
Wilmer W. Nichols, Michael F. O’Rourke
doaj   +1 more source

Pulsatile Turbulent Flow in Straight and Curved Pipes - Interpretation and Decomposition of Hot-Wire Signals [PDF]

open access: yes, 2015
Pulsatile turbulent flows in curved pipes at high Womersley and Reynolds numbers are prevalent in various components of internal combustion engines, in particular in the intake of the exhaust manifold.
Örlü, Ramis,   +2 more
core   +1 more source

Velocity-driven Womersley Solution for Pulsatile Flow [PDF]

open access: yes, 2022
Version 0.1.1 of Velocity-driven Womersley Solution for Pulsatile Flow for estimating pulsatile wall shear stress (WSS) from an input velocity waveform.
jmuskat
core   +1 more source

LES of non-Newtonian physiological blood flow in a model of arterial stenosis [PDF]

open access: yes, 2012
Large Eddy Simulation (LES) is performed to study the physiological pulsatile transition-to-turbulent non-Newtonian blood flow through a 3D model of arterial stenosis by using five different blood viscosity models: (i) Power-law, (ii) Carreau, (iii ...
Molla, M.M.   +3 more
core   +1 more source

Parametric Analysis of Effective Tissue Thermal Conductivity, Thermal Wave Characteristic, and Pulsatile Blood Flow on Temperature Distribution during Thermal Therapy [PDF]

open access: yes, 2017
This study examines the coupled effects of pulsatile blood flow in a thermally significant blood vessel, the effective thermal conductivity of tumor tissue, and the thermal relaxation time in solid tissues on the temperature distributions during thermal ...
Shih, Tzu-Ching;Huang, Huang-Wen;Wei, Wei-Che;Horng, Tzyy-Leng
core   +1 more source

Cerebrovascular Compliance Within the Rigid Confines of the Skull

open access: yesFrontiers in Physiology, 2018
Pulsatile blood flow is generally mediated by the compliance of blood vessels whereby they distend locally and momentarily to accommodate the passage of the pressure wave.
Mair Zamir   +6 more
doaj   +1 more source

POSS‐PEG‐NHS and GSH Cocrosslink DPAV to Prepare Anticalcification Bioprosthetic Scaffold With Enhanced Reendothelization, Anti‐inflammation, and Anti‐ROS

open access: yesAdvanced Healthcare Materials, EarlyView.
POSS‐PEG‐NHS and GSH cocrosslinked DPAV to prepare a multifunctional anticalcification valve substitute. This modification enhances mechanical properties, hemocompatibility, and re‐endothelialization while promoting anti‐inflammatory M2 macrophage infiltration and reducing calcification.
Yuqing Zhang   +10 more
wiley   +1 more source

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