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]

open access: yes, 2008
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]

open access: yesProceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1922
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]

open access: yes, 2013
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]

open access: yes, 2007
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

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

Elevated levels of urine isocitrate, hydroxymethylglutarate, and formiminoglutamate are associated with arterial stiffness in Korean adults

open access: yesScientific Reports, 2021
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

open access: yesBlood Pressure, 2019
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

Association between increased arterial stiffness and clinical outcomes in patients with early sepsis: a prospective observational cohort study

open access: yesIntensive Care Medicine Experimental, 2019
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]

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   +4 more sources

Pulse Wave Velocity in Familial Combined Hyperlipidemia [PDF]

open access: yesAmerican Journal of Hypertension, 2007
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

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