Now showing items 111-120 of 1923
Dislocation pinning effects on fracture behavior: Atomistic and dislocation dynamics simulations
(American Physical Society, 2002-10-01)
We introduce an approach in which results from atomistic simulations are combined with discrete dislocation dynamics simulations of crack-tip plasticity. The method is used to study the effects of dislocation pinning due ...
Stochastic simulation of enzyme-catalyzed reactions with disparate timescales
(CELL PRESS, 2008-10-01)
Many physiological characteristics of living cells are regulated by protein interaction networks. Because the total numbers of these protein species can be small, molecular noise can have significant effects on the dynamical ...
Investigation And Application Of The Frustrated-Total-Internal-Reflection Phenomenon in Optical Fibers
(Optical Society of America, 1997-12-01)
A detailed investigation of the frustrated-total-internal-reflection (FTIR) phenomenon in silica-glass-based optical fibers and its application to simple intensity-modulated strain and pressure sensors is presented. Such ...
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 ...
ZrO2 Thin-Film-Based Sapphire Fiber Temperature Sensor
(Optical Society of America, 2012-10-01)
A submicrometer-thick zirconium dioxide film was deposited on the tip of a polished C-plane sapphire fiber to fabricate a temperature sensor that can work to an extended temperature range. Zirconium dioxide was selected ...
Comparison Of The Measured And Predicted Response Of The Earth Radiation Budget Experiment Active Cavity Radiometer During Solar Observations
(Optical Society of America, 1989-05-01)
The Earth Radiation Budget Experiment consists of an array of radiometric instruments placed in earth orbit by the National Aeronautics and Space Administration to monitor the longwave and visible components of the earth's ...
Displacement-Fields (U,W) Obtained Simultaneously By Moiré Interferometry
(Optical Society of America, 1982-11-01)
A high-frequency phase grating on a specimen surface is illuminated symmetrically by two oblique beams. The diffracted beams emerge with wave front warpages that define both the in-plane U and out-of-plane W displacement ...
Fabry-Perot Fiber-Optic Sensors in Full-Scale Fatigue Testing on an F-15 Aircraft
(Optical Society of America, 1992-02-01)
We report results from fiber-optic-sensor field tests on an F-15 aircraft mounted within a full-scale test frame for the purpose of fatigue testing. Strain sensitivities of the order of 0.01 _m/m have been obtained.
Detecting intracellular translocation of native proteins quantitatively at the single cell level
(The Royal Society of Chemistry, 2014-04-07)
The intracellular localization and movement (i.e. translocation) of proteins are critically correlated with the functions and activation states of these proteins. Simple and accessible detection methods that can rapidly ...
Fabrication Of Holographic Gratings Using A Moving Point-Source
(Optical Society of America, 1989-02-01)
In the manufacture of holographic gratings using coherent light there is an associated problem of optical noise, the conventional remedies for which involve various restrictions. In this work a moving point source is adopted ...