Results 21 to 30 of about 257,310 (348)
Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste [PDF]
In this paper, the applicability of the ultrasonic wave transmission method to estimate the initial setting time of an arbitrary cement paste is discussed. Ultrasonic pulse velocity measurements were fully automated and measured continuously.
Chotard+19 more
core +2 more sources
The velocity of pulse wave in man [PDF]
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 arrived at, together with ...
Archibald Vivian Hill+1 more
openaire +2 more sources
On-chip laser Doppler vibrometer for arterial pulse wave velocity measurement [PDF]
Pulse wave velocity (PWV) is an important marker for cardiovascular risk. The Laser Doppler vibrometry has been suggested as a potential technique to measure the local carotid PWV by measuring the transit time of the pulse wave between two locations ...
Baets, Roel+3 more
core +2 more sources
Parametric Frequency Conversion of Short Optical Pulses Controlled by a CW Background [PDF]
We predict that parametric sum-frequency generation of an ultra-short pulse may result from the mixing of an ultra-short optical pulse with a quasi-continuous wave control.
Baronio, Fabio+3 more
core +4 more sources
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
Recent evidence suggests that cellular perturbations play an important role in the pathogenesis of cardiovascular diseases. Therefore, we analyzed the association between the levels of urinary metabolites and arterial stiffness. Our cross-sectional study
Ji-Hee Haam+8 more
doaj +1 more source
Comparison of arterial stiffness indices measured by pulse wave velocity and pulse wave analysis
Objective: Arterial stiffness indices measured by pulse wave velocity and pulse wave analysis have been widely studied in different populations. Only a few small studies have been reported regarding these two measurement methods.
Hongyan Zhu+13 more
doaj +1 more source
Background Conduit arteries, especially the aorta, play a major role in ensuring efficient cardiac function and optimal microvascular flow due to their viscoelastic properties.
Sigita Kazune+4 more
doaj +1 more source
Difficulties in the measurement of pulse-wave velocity [PDF]
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 +4 more sources
Pulse Wave Velocity in Familial Combined Hyperlipidemia [PDF]
In the present cross-sectional study we investigated whether familial combined hyperlipidemia (FCH) is associated with an increased arterial wall stiffness, and whether measures of arterial wall stiffness in FCH family members could contribute to cardiovascular risk stratification.Ninety-eight subjects with FCH and 230 unaffected relatives filled out a
Avest, E. ter+5 more
openaire +5 more sources