Results 11 to 20 of about 77,992 (260)

P138 Modelling and Simulation of Pressure Re-reflections at the Aortic Valve Using Difference Equations

open access: yesArtery Research, 2020
Introduction The concept of re-reflections of blood pressure waves at the heart has been neglected in most models and is only poorly understood so far.
Bernhard Hametner   +2 more
doaj   +2 more sources

Reflection Analysis of Impermeable Slopes under Bimodal Sea Conditions

open access: yesJournal of Marine Science and Engineering, 2020
Understanding of the reflection characteristics of coastal seawalls is crucial for design. Wave reflection can cause difficulties in small vessel manoeuvring at harbour entrances; this can cause damage to the toe of coastal structures by scouring ...
Stephen Orimoloye   +2 more
doaj   +1 more source

Dynamic and isometric handgrip exercise increases wave reflection in healthy young adults

open access: yesJournal of Applied Physiology, 2020
Joseph M Stock   +2 more
exaly   +2 more sources

Numerical Modeling of Wave Reflection from Sloped Impermeable Seawalls Using the SPH Method: Case Study of Chabahar Port

open access: yesAdvances in Civil Engineering, 2021
In this research, a comprehensive study is performed to investigate the interaction of regular waves with the impermeable seawall of the Chabahar port. First, a MIKE 21 SW model is used to transform the deep-water wave data to the nearshore zone.
Behrouz Aghaei   +3 more
doaj   +1 more source

P85 Acute Systemic Inflammation Reduces both Carotid and Aortic Wave Reflection in Young Healthy Adults

open access: yesArtery Research, 2020
Acute inflammation increases the risk of cardiac and cerebrovascular events, potentially associated with altered hemodynamic load. Wave reflection at the aorta and carotid artery can contribute to central hemodynamic load and provide insight into ...
Elizabeth Schroeder   +3 more
doaj   +1 more source

Wave reflection at a stent

open access: yesProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2012
A simple analytical expression has been derived to calculate the characteristics of a wave that reflects at a stent implanted in a uniform vessel. The stent is characterized by its length and the wave velocity in the stented region. The reflected wave is proportional to the time derivative of the incident wave.
Crespo Martínez, Antonio   +2 more
openaire   +3 more sources

Effect of Rosensweig instability in a ferrofluid layer on reflection loss of a high-frequency electromagnetic wave

open access: yesAIP Advances, 2022
A ferrofluid layer separates into numerous subscale crests, which is referred to as Rosensweig instability, whose shape and size depend on the field condition and the composition of the ferrofluid. A ferrofluid consisting of nanoscale magnetite particles
Yan-Hom Li, Kuo-Lung Huang
doaj   +1 more source

Wave reflection in semiconductor nanostructures

open access: yesTheoretical and Applied Mechanics Letters, 2018
: Based on nonlocal thermoelastic theory, this article studies the reflection of waves in nanometer semi-conductor media. Firstly, the governing equations are established based on coupled nonlocal elasticity theory, plasma diffusion equation, and moving ...
Feixiang Tang, Yaqin Song
doaj   +1 more source

An Image Processing Method for Extraction of the Stress Wave Reflection Period

open access: yesApplied Sciences, 2020
The stress wave reflection method is widely used in the detection of structure size and integrity due to its advantages of low environmental impact and convenience.
Panpan Gong   +4 more
doaj   +1 more source

Normal Reflection Characteristics of One-Dimensional Unsteady Flow Shock Waves on Rigid Walls from Pulse Discharge in Water

open access: yesShock and Vibration, 2017
Strong shock waves can be generated by pulse discharge in water, and the characteristics due to the shock wave normal reflection from rigid walls have important significance to many fields, such as industrial production and defense construction.
Dong Yan, Jinchang Zhao, Shaoqing Niu
doaj   +1 more source

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