Αποτελέσματα Αναζήτησης
1 Φεβ 2002 · The relationship between pulse pressure, the resultant pulsatile flow, arterial elasticity and dimensions is encapsulated in the concept of impedance. This may be described as a combination of all the factors which limit the pulsatile flow across a pulsatile pressure gradient.
1 Ιαν 2022 · Elasticity of arteries is a fundamental structural property that is a major determinant of the relationship of the pulsatile components of arterial blood pressure and flow.
This paper combines a generalized viscoelastic model with a one-dimensional (ID) fluid dynamics model for the prediction of blood flow, pressure, and vessel area in systemic arteries. The ID fluid dynamics model is derived from the Navier-Stokes equations for an incompressible.
10 Οκτ 2018 · Following the same analysis, but with the linear elastic model replaced by the Fung hyperelastic model for human arteries, yields parametric equations for the relation between the pulse wave velocity and pressure, similar to Eqs.
1 Ιαν 2019 · Specifically, experimental data from a human internal carotid artery are shown with the emphasis on the dependence of pressure on circumferential stretch (equivalent to the internal radius) of the artery initially pre-stretched axially by various amounts in the absence of pressure.
1 Μαΐ 2013 · For diastolic pressures, elasticity increases relatively weakly as pressure increases, while for systolic pressures, elasticity increases significantly as pressure goes up, which means that there is strong non-linearity between arterial wall stiffness and an increase in pressure.
These tests yield two measurements: stress, which. is the pulling force divided by the. cross-sectional area of the material, and. strain, which is the change in length (deformation) divided by the original. length of the material. Some materials have linear elasticity.
