Results 11 to 20 of about 624,198 (294)

Pulse Wave Analysis [PDF]

open access: yesHypertension, 2011
Cardiovascular refers to the Cardio (heart) and vascular (blood vessels). The system has two major functional parts: central circulation system and systemic circulation system. Central circulation includes the pulmonary circulation and the heart from where the pulse wave is generated. Systemic circulation is the path that the blood goes from and to the
Fan, Zhaopeng, Zhang, Gong, Liao, Simon
openaire   +5 more sources

YI 1.8 A Computational Model-Based Study on the Effect of Abdominal Aortic Aneurysm on Pulse Wave Morphology

open access: yesArtery Research, 2020
Background: Abdominal aortic aneurysm (AAA) is usually asymptomatic and has an extremely high mortality if rupture occurs. Therefore, early detection and intervention are important.
Tianqi Wang   +2 more
doaj   +1 more source

Estimation of the Value of Reverse Blood Flow in the Artery by the Second Derivative of the Pulse Pressure Wave [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика, 2020
Background and Objectives: Previously, the diastolic section of the pulse wave was most often analyzed as the result of reflection of a direct wave from the elements of peripheral vessels.
Baatyrov, Rahim Taalaibekovich   +4 more
doaj   +1 more source

Gravitational wave pulse and soliton wave collision [PDF]

open access: yesPhysical Review D, 1987
We study the collision of a gravitational wave pulse and a soliton wave on a spatially homogeneous background. This collision is described by an exact solution of Einsteins equations in a vacuum which is generated from a nondiagonal seed by means of a soliton transformation.
Céspedes i Capdevila, Juli   +1 more
openaire   +3 more sources

The test ability of an adaptive pulse wave for ADC testing [PDF]

open access: yes, 2010
In the conventional ADC production test method, a high-quality analogue sine wave is applied to the Analogue-to-Digital Converter (ADC), which is expensive to generate.
Kerkhoff, Hans G., Sheng, Xiaoqin
core   +3 more sources

Different circadian patterns of arterial stiffness are responsible for increased cardiovascular mortality in hemodialyzed patients

open access: yesPhysiological Reports, 2021
We hypothesized that volume changes during 48‐h are associated with different circadian patterns of arterial stiffness on non‐dialysis day compared to dialysis day and that the night‐time increase of arterial stiffness is associated with higher mortality.
Vedran Premužić, Bojan Jelaković
doaj   +1 more source

Pulse wave propagation. [PDF]

open access: yesCirculation Research, 1981
This report evaluates pulse wave propagation with respect to contributions by vascular wall elastic and geometric properties, vessel wall and blood viscosity, and nonlinearities in system parameters and in the equations of motion. Discrepancies in results obtained with different experimental methods and theory are discussed and resolved.
J K, Li   +3 more
openaire   +2 more sources

Brachialis Pulse Wave Measurements with Ultra-Wide Band and Continuous Wave Radar, Photoplethysmography and Ultrasonic Doppler Sensors

open access: yesSensors, 2020
The measurement and analysis of the arterial pulse wave provides information about the state of vascular health. When measuring blood pressure according to Riva-Rocci, the systolic and diastolic blood pressure is measured non-invasively with an ...
Horst Hellbrück   +3 more
doaj   +1 more source

A weakly nonlinear Alfvénic pulse in a transversely inhomogeneous medium [PDF]

open access: yes, 2001
The interaction of a weakly nonlinear Alfvénic pulse with an Alfvén speed inhomogeneity in the direction perpendicular to the magnetic field is investigated.
Abdelatif   +28 more
core   +4 more sources

Comparison of sequentially measured Aloka echo-tracking one-point pulse wave velocity with SphygmoCor carotid–femoral pulse wave velocity

open access: yesSAGE Open Medicine, 2013
Objectives: Recently, echo-tracking-derived measures of arterial stiffness have been introduced in clinical practice for the assessment of one-point pulse wave velocity.
Olga Vriz   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy