Results 51 to 60 of about 432,453 (195)

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   +4 more sources

Data-Driven Simulation of Near-Fault Ground Motions Using Stationary Wavelet Transform and Hilbert Analysis

open access: yesBuildings
Near-fault ground motions exhibit significant characteristics such as velocity pulses, rupture directivity, and strong vertical components, which pose serious threats to structural safety.
Weikun He   +6 more
doaj   +1 more source

A Study on Correlation between Ultrasonic Pulse Velocity Method and Coarse Aggregate for Estimating Residual Modulus of Elasticity of Concrete Exposed to High Temperatures

open access: yesApplied Sciences, 2022
In this study, the mechanical properties of normal concrete (NC) and lightweight concrete (LC) were measured upon exposure to high temperatures (20, 100, 200, 300, 500, and 700 °C).
Wonchang Kim   +3 more
doaj   +1 more source

Robust two-dimensional subrecoil Raman cooling by adiabatic transfer in a tripod atomic system

open access: yes, 2012
We demonstrate two-dimensional robust Raman cooling in a four-level tripod system, in which velocity-selective population transfer is achieved by a STIRAP pulse. In contrast to basic 2D Raman cooling with square envelope pulses [Phys. Rev.
C. Audoin   +7 more
core   +1 more source

The Effect of an Angiotensin Receptor Blocker on Arterial Stiffness in Type 2 Diabetes Mellitus Patients with Hypertension [PDF]

open access: yesDiabetes & Metabolism Journal, 2011
BackgroundHypertension and type 2 diabetes mellitus are major risk factors for cardiovascular disease. This study analyzed the changes in central aortic waveforms and pulse wave velocity as well as related parameters after treatment with valsartan, an ...
Ji Hyun Kim   +8 more
doaj   +1 more source

Coherent Amplification of Optical Pulses in Metamaterials [PDF]

open access: yes, 2009
In this paper we theoretically study propagation of steady state ultrashort pulse in dissipative medium. We considered two cases (i) medium consists of lossy metallic nanostructures embedded into a gain material and (ii) the gain material is embedded ...
Gabitov, Ildar R.   +2 more
core   +1 more source

Pulse velocities in initially stressed arteries

open access: yesJournal of Biomechanics, 1988
In this short paper, treating the artery as a thick walled cylindrical shell and employing the large deformation theory, an analytical expression for the pulse wave speed is obtained and the effect of lumen pressure and the axial stretch on the wave speed is discussed.
openaire   +3 more sources

Brachial-ankle pulse wave velocity and symptomatic cerebral infarction in patients with type 2 diabetes: a cross-sectional study

open access: yesCardiovascular Diabetology, 2003
Background Recently a new automatic device that measures brachial-ankle pulse wave velocity using an oscillometric method has been developed. However, the practical significance of brachial-ankle pulse wave velocity measurement remains uncertain.
Muramatsu Chie   +5 more
doaj   +1 more source

Bifurcating trajectory of non-diffractive electromagnetic Airy pulse [PDF]

open access: yes, 2011
The explicit expression for spatial-temporal Airy pulse is derived from the Maxwell's equations in paraxial approximation. The trajectory of the pulse in the time-space coordinates is analysed.
Nerukh, Alexander G.   +2 more
core   +1 more source

Causality in Propagation of a Pulse in a Nonlinear Dispersive Medium

open access: yes, 2004
We investigate the causal propagation of the pulse through dispersive media by very precise numerical solution of the coupled Maxwell-Bloch equations without any approximations about the strength of the input field.
Brillouin L   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy