In this paper, free longitudinal vibration of nanorods is investigated from the wave viewpoint. The Eringen’s nonlocal elasticity theory is used for nanorods modelling. Wave propagation in a medium has a similar formulation as vibrations and thus,  it can be used to describe the vibration behavior. Boundaries reflect the propagating waves after incident. Firstly, the governing quation of nanoro...

A numerical solution to the time evolution equation of Wigner distribution function (WDF) with an accuracy necessary simulate passage a wave packet past barrier is developed, where quantum effects require high and fine discretization. incident on barrier, portion which tunnels through, demonstrates behavior that can define various characteristic transmission reflection delay (TARD) times useful...

An exact solution is given for the reflection of a plane wave normally incident on a rigid solid with periodically spaced semi-infinite circular holes. Analytical considerations, verified by numerical calculations, show that the reflection coefficient isunity at the cutoff requencies defined by the periodicity of the holes. This result is independent of the volume fraction of the holes. It impl...

We determined the effects of static and dynamic muscle contraction at equivalent workloads on central aortic pressure and wave reflection. At random, 14 healthy men and women (23 +/- 5 yr of age) performed a static handgrip forearm contraction [90 s at 30% of maximal voluntary contraction (MVC)], dynamic handgrip contractions (1 contraction/s for 180 s at 30% MVC), and a control trial. During s...

The non-invasive quantification of arterial wave reflection is an increasingly important concept in cardiovascular research. It is commonly based on pulse wave analysis (PWA) of aortic pressure. Alternatively, wave separation analysis (WSA) considering both aortic pressure and flow waveforms can be applied. Necessary estimates of aortic flow can be measured by Doppler ultrasound or provided by ...