Now showing items 1-10 of 952
Flag Football Headgear STAR Protocol
This document details the protocol used to rate flag football headgear based on concussion risk according to the Virginia Tech Helmet Ratings.
Signal Processing Of White-Light Interferometric Low-Finesse Fiber-Optic Fabry-Perot Sensors
(Optical Society of America, 2013-08-01)
Signal processing for low-finesse fiber-optic Fabry-Perot sensors based on white-light interferometry is investigated. The problem is demonstrated as analogous to the parameter estimation of a noisy, real, discrete harmonic ...
A Simple Model for the Average Local Entrainment Rate
(AIP Publishing, 1986-07-01)
A new expression for the mean local entrainment rate in a turbulent intermittent flow is obtained. This expression is used to obtain a simple model for the entrainment rate assuming that an indicator function can be defined ...
Flow Over Bodies with Suction Through Porous Strips
(AIP Publishing, 1986-07-01)
This article addresses the steady, incompressible flow past a two‐dimensional or an axisymmetric body with suction through porous strips. Closed‐form solutions for each flow quantity are developed in the context of linearized ...
Compressible Boundary Layers Over Wavy Walls
(AIP Publishing, 1976)
An analysis is presented of compressible viscous flows past wavy walls without restricting the mean flow to be linear in the disturbance layer. Linearization of the compressible disturbance equations results in a system ...
Third-order resonant wave interactions
(AIP Publishing, 1977)
An analysis is presented of third_order resonant interactions in capillary-gravity waves. When dissipation is accounted for, the theory predicts the amplitude of the third harmonic near the resonant frequency and at the ...
Second-order asymptotic solution for laminar separation
(AIP Publishing, 1980)
The method of matched asymptotic expansions is used to obtain a second-order triple-deck solution for the case of constant wall temperature. It includes the problem of an adiabatic wall as a special case. The theory is ...
Exact Numerical Results for Poiseuille And Thermal Creep Flow in a Cylindrical Tube
(AIP Publishing, 1986-02-01)
The F N method is used, in the field of rarefied gas dynamics, to develop a complete solution for the cylindrical Poiseuille flow and thermal creep problems. The linearized Bhatnagar–Gross–Krook (BGK) model and purely ...
Interplay between static and dynamic polar correlations in relaxor Pb(Mg1/3Nb2/3)O-3
(American Physical Society, 2010-04-01)
We have characterized the dynamics of the polar nanoregions in Pb(Mg1/3Nb2/3)O-3 through high-resolution neutron-backscattering and spin-echo measurements of the diffuse-scattering cross section. We find that the ...
Evidence for anisotropic polar nanoregions in relaxor Pb(Mg1/3Nb2/3)O-3: A neutron study of the elastic constants and anomalous TA phonon damping in PMN
(American Physical Society, 2012-09-18)
We use neutron inelastic scattering to characterize the acoustic phonons in the relaxor Pb(Mg1/3Nb2/3)O-3 (PMN) and demonstrate the presence of a highly anisotropic damping mechanism that is directly related to short-range ...