Results 31 to 40 of about 69,694 (307)

Parabolic pulse generation through passive reshaping of Gaussian pulses in a normally dispersive fiber [PDF]

open access: yes, 2007
We numerically and experimentally demonstrate that a Gaussian pulse can be reshaped into a pulse with a stable parabolic intensity profile during propagation in normally dispersive nonlinear ...
David J. Richardson   +9 more
core   +1 more source

Determination of wave speed and distensibility of flexible tubes using diameter and velocity

open access: yes, 2009
It is well accepted that wave speed is one of the key factors describing wave propagation in arteries. Local wave speed is directly related to the mechanical properties of the arterial wall and is widely used to determine the arterial distensibility ...
Ye Li, Li, Y, Khir, AW, A.W. Khir
core   +1 more source

Traditional practices and recent advances in Nadi Pariksha: A comprehensive review

open access: yesJournal of Ayurveda and Integrative Medicine, 2019
The significance of Nadi Pariksha is well understood and effectively used by Ayurveda practioners for assessing Tridoshas and various physiological and psychological states of the patient.
P. Venkata Giri Kumar   +2 more
doaj   +1 more source

STRUCTURAL AND FUNCTIONAL VASCULAR CHANGES IN HIGH NORMAL ARTERIAL PRESSURE [PDF]

open access: yesTrakia Journal of Sciences, 2020
The PURPUSE of the present study is changes in function and structure of large arteries in individuals with High Normal Arterial Pressure (HNAP) to be established.
P. Nikolov
doaj   +1 more source

Automating the determination of wave speed using the pu-loop method

open access: yes, 2005
The PU-loop (pressure-velocity loop) is a method for determining wave speed and relies on the linear relationship between the pressure and velocity in the absence of reflected waves.
Khir, AW   +3 more
core   +1 more source

Difficulties in the measurement of pulse-wave velocity [PDF]

open access: yesAmerican Heart Journal, 1958
The methods employed in the measuring of pulse-wave velocity are subject to gross error because of alinearity and frequency distortion resulting from low-resonance frequencies of instrumentation and arterial segment and extraneous tissue interference.
openaire   +3 more sources

The velocity of pulse wave in man [PDF]

open access: yesProceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1922
Abstract In an investigation now being carried out by us at Manchester observations are being made, under various conditions, upon the velocity of the pulse wave in man. As a preliminary to this investigation it was thought advisable to study the theory of the transmission of the pulse wave, and the following pages contain the results
J. Crighton Bramwell   +1 more
openaire   +1 more source

The effects of antihypertensive drugs on arterial stiffness☆

open access: yesArtery Research, 2016
Ageing and cardiovascular risk factors, particularly uncontrolled hypertension, adversely impact arterial stiffness and wave reflection leading to increased central systolic blood pressure.
Lorenzo Ghiadoni
doaj   +1 more source

Simultaneous determination of wave speed and arrival time of reflected waves using the pressure-velocity loop

open access: yes, 2007
This is the post print version of the article. The official published version can be found at the link below.In a previous paper we demonstrated that the linear portion of the pressure–velocity loop (PU-loop) corresponding to early systole could be used ...
J. Feng   +7 more
core   +1 more source

Evaluation of Distensibility and Stiffness of Ascending Aortic Aneurysm using Magnetic Resonance Imaging

open access: yesJournal of Nepal Medical Association, 2016
Introduction: Magnetic resonance imaging emerging as a new tool for the diagnosis and evaluation of ascending aortic aneurysm. The aim of our study is to evaluate in vivo distensibility and pulse wave velocity of the aortic wall using functional magnetic
Kaushal Kishore Tiwari   +5 more
doaj   +3 more sources

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