wave reflection
Lower potassium intake is associated with increased wave reflection in young healthy adults
... pressure wave was synthesized from the measured radial artery pres- sure waveform with the SphygmoCor Px system (AtCor Medical, Sydney, Australia), which uses a transfer function and is FDA ...synthesized ...
8
Wave Reflection at the Boundary Layer and Initial Factors of Atherosclerosis
... group wave at the boundary reflection, changes in phase at ...flow wave oscillation frequency at the outer curvature is two times higher ...surface wave and facilitates the blood structural ...
11
Joint identification in structural waveguides using wave reflection and transmission coefficients
... negative-going wave amplitudes at the local origins of the transducer pairs, which are decomposed from the measured ...power reflection and transmission coefficients, ρ ˆ and τ ˆ of block 1 estimated from ...
216
Friedlander Keller ray expansions and scalar wave reflection at canonically perturbed boundaries
... This application of Friedlander and Keller’s theory is a second aim of this paper, and might even be the first such application for any specific value of a key parameter α that they introduce, apart from two other ...
23
The Effect of an Acute Bout of Aerobic Exercise on Arterial Stiffness and Wave Reflection in Patients with Coronary Artery Disease, Alyssa L. Borell and Cristin A. Davis
... When the heart contracts, a pressure wave is sent through the blood vessels. In patients with arterial stiffness, this pressure wave travels faster. An increase in arterial stiffness decreases the arterial ...
6
Calculation of guided wave interaction with nonlinearities and generation of harmonics in composite structures through a wave finite element method
... guided wave inspection techniques have been continuously gaining attention during the last ...elastic wave impinges on a nonlinear segment, including the generation of higher and ...and reflection ...
21
Effect of negative permittivity and permeability on the transmission of electromagnetic waves through a structure containing left handed material
... magnetic wave reflection and transmission by multilayered structures consisting of a pair of left-handed material (LHM) and dielectric slabs inserted between two semi-infinite dielectric ...
6
The Relationship of Carotid Arterial Stiffness and Left Ventricular Concentric Hypertrophy in Hypertension
... Material and Methods. The study involved 262 subjects (89 men): 202 patients with hypertension (153 untreated, 49 on medication), aged 55.7 ± 10 years, and 60 age-matched normal controls. The subjects were examined by ...
10
A Systems Approach to Cardiovascular Health and Disease with a Focus on Aortic Wave Dynamics
... Boundary conditions must account for the three important effects generated by vascular networks on their upstream vessels: compliance, resistance, and wave reflection (whose arrival times are clinically ...
193
A Mathematical Model for Analysis of Upright Perforated Wave Absorbers
... the wave reflection coefficient from an upright perforated wave ...of reflection coefficient from the numerical model requires that the values of reflection and transmission ...
10
Using Half Pipes as Permeable Breakwater
... the reflection and transmission coefficients on a porous breakwater for normal and oblique wave ...investigated wave transmission and wave forces for vertical wave ...called wave ...
12
PREDICTION OF HYDRODYNAMIC COEFFICIENTS OF PERMEABLE PANELED BREAKWATER USING ARTIFICIAL NEURAL NETWORKS
... the wave transmission of the floating ...coefficients; wave transmission and wave reflection of permeable paneled breakwater using Artificial Neural ...
12
1. Development of meshless method boundary conditions for high speed flows
... shock wave development model does not ...shock wave phenomena. In situations where only a regular shock reflection is expected as in ducted flows, a Mach wave reflection too may ...
5
Finite-difference modelling to evaluate seismic P-wave and shear-wave field data
... shear-wave reflection surveys. Here, the reflection hyperbola often interferes with surface wave (Love wave) signals; ...and reflection hyperbolas ...SH- wave surveys on ...
15
Operating Limits for Acoustic Measurement of Rolling Bearing Oil Film Thickness
... If ultrasound is incident on a layered system then some of the wave will be reflected at the front face of the layer and some at the back face. There will be a series of reflections as the wave bounces ...
11
Transmission Line Based Wideband Microwave Sensor for Determination of Biodiesel Purification
... In order to measure dielectric properties of liquid-based materials, various sensor type and measurement techniques have been proposed in the literature [9–10]. Prominent methods are based on transmission line theory ...
14
Lattice Boltzmann Modeling of Wave Propagation and Reflection in the Presence of Walls and Blocks
... show wave propagation and reflection ...the wave propagation and its behavior after collision with the solid ...of wave and the effect of blocks and ...the wave front and changes the ...
5
Reflection and Transmission of Electromagnetic Wave Due to a Quasi-Fractional-Space Slab
... exp (−jk x x − jk zo z) (12c) where Γ and τ in this case are the TM reflection and transmission coefficients respectively. Thus, it is required to determine six unknown quantities which correspond to the four ...
10
Wide-Angle Reflection Wave Polarizers Using Inhomogeneous Planar Layers
... i.e., more TE reflection. Importantly, it is seen that Brewster’s polarizers operate at a very narrow incidence angle range. Now, we would like to design an IPL as a polarizer for incidence angles between θ i,min ...
12
A New Concept of Calculation Coefficietns of Reflection and Passage Sound Waves on the Boundary of Liquid Spaces
... acoustic wave, in some cases, according to existing formulas [1-4,6,7] becomes nega- ...incident wave to the reflected wave can not be ...upon reflection can not be. As noted above, the phase ...
8