Results 71 to 80 of about 1,804,777 (282)

A Database For Developing Pulse Wave Analysis Algorithms [PDF]

open access: yes, 2018
Introduction The shape of the arterial pulse wave (PW) is a rich source of information on cardiovascular (CV) health, since it is influenced by both the heart and the vasculature. Consequently, many algorithms have been proposed to estimate clinical parameters from PWs.
Charlton, Peter H   +4 more
openaire   +4 more sources

A non-invasive blood viscosity detecting method based on pulse wave [PDF]

open access: yesMATEC Web of Conferences, 2020
A non-invasive blood viscosity detection method based on pulse wave is proposed. The method establishes a relationship equation between blood viscosity and peripheral resistance, arterial compliance, and pulse wave waveform characteristics by extracting ...
Cui Fei, Chen Xiaohui, Peng Jie
doaj   +1 more source

Regular and Singular Pulse and Front Solutions and Possible Isochronous Behavior in the Short-Pulse Equation: Phase-Plane, Multi-Infinite Series and Variational Approaches [PDF]

open access: yes, 2014
In this paper we employ three recent analytical approaches to investigate the possible classes of traveling wave solutions of some members of a family of so-called short-pulse equations (SPE).
Choudhury, A. Ghose   +4 more
core   +1 more source

Effects of vorticity on the travelling waves of some shallow water two-component systems [PDF]

open access: yesDiscrete & Continuous Dynamical Systems - A (2019), Vol. 39, Issue 9, pp. 5521-5541, 2019
In the present study we consider three two-component (integrable and non-integrable) systems which describe the propagation of shallow water waves on a constant shear current. Namely, we consider the two-component Camassa-Holm equations, the Zakharov-Ito system and the Kaup--Boussinesq equations all including constant vorticity effects. We analyze both
arxiv   +1 more source

Accuracy of Pulse Wave Velocity Predicting Cardiovascular and All-Cause Mortality. A Systematic Review and Meta-Analysis

open access: yesJournal of Clinical Medicine, 2020
Increased arterial stiffness has been associated with an increased risk of developing cardiovascular diseases and all-cause mortality. Pulse wave velocity (PWV) is an innovative and affordable measurement of arterial stiffness which may be an accessible ...
Irene Sequí-Domínguez   +5 more
semanticscholar   +1 more source

Analysis of Kapitza-Dirac diffraction patterns beyond the Raman-Nath regime [PDF]

open access: yesOptics Express 17, 19173-19180 (2009), 2009
We study Kapitza-Dirac diffraction of a Bose-Einstein condensate from a standing light wave for a square pulse with variable pulse length but constant pulse area. We find that for sufficiently weak pulses, the usual analytical short-pulse prediction for the Raman-Nath regime continues to hold for longer times, albeit with a reduction of the apparent ...
arxiv   +1 more source

Urbanization as a risk factor for aortic stiffness in a cohort in India. [PDF]

open access: yesPLoS ONE, 2018
Urbanization is associated with higher prevalence of cardiovascular disease worldwide. Aortic stiffness, as measured by carotid-femoral pulse wave velocity is a validated predictor of cardiovascular disease. Our objective was to determine the association
Laura Corlin   +9 more
doaj   +1 more source

Development of pressure-pulse-sensor using a gyro sensor for postprandial blood glucose level estimation

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Self-measurement of blood glucose is usually done using a drop of blood from the fingertip. Non-invasive methods have been studied vigorously, but have not been put into practical use because of difficulties resolving problems of portability, accuracy ...
Hiromi AJIMA   +2 more
doaj   +1 more source

Research on Electromagnetic Susceptibility of Electronic Modules in Component-Level HEMP PCI Test

open access: yesEnergies, 2022
The study of electromagnetic sensitivity of electronic modules is crucial for the selection of a component-level pulse current injection (PCI) waveform, which will determine whether a component-level PCI test is equivalent to a system-level pulse ...
Chuanbao Du   +6 more
doaj   +1 more source

A new approach to investigate wave dissipation in viscoelastic tubes: Application of wave intensity analysis [PDF]

open access: yes, 2005
Wave dissipation in elastic and viscoelastic medium has been investigated extensively in the frequency domain. The aim of this study is to examine the pattern of wave dissipation in the time-domain using wave intensity analysis.
Feng, J, Khir, AW
core   +1 more source

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