Browsing by Title
Now showing items 253272 of 50695

930 sqft of Architecture
(Virginia Tech, 20081020)There is no primacy to Architecture.For centuries architects have posited formulaic approaches to creating spatial environments. Bold maxims for design have defined entire periods and styles of architecture, and each ...

The 9th Virginia Infantry Regiment, C.S.A.
(Virginia Tech, 1981) 
a 10 kpc scale seyfert galaxy outflow: hst/cos observations of iras f224565125
(IOP Publishing Ltd., 201206)We present analysis of the UV spectrum of the lowz AGN IRAS F224565125 obtained with the Cosmic Origins Spectrograph on board the Hubble Space Telescope. The spectrum reveals six main kinematic components, spanning a ... 
A behavioral perspective on the biophysics of the lightdependent magnetic compass: a link between directional and spatial perception?
(Company of Biologists Ltd., 201010)In terrestrial organisms, sensitivity to the Earth's magnetic field is mediated by at least two different magnetoreception mechanisms, one involving biogenic ferromagnetic crystals (magnetite/maghemite) and the second ... 
a bidirectional traveling planewave representation of exactsolutions of the scalar waveequation
(AIP Publishing, 198906)A new decomposition of exact solutions to the scalar wave equation into bidirectional, forward and backward, traveling plane wave solutions is described. The resulting representation is a natural basis for synthesizing ... 
A Brief Survey of the Development of Dramatic Literature for Children
(Johns Hopkins Univ Press, 1983) 
A Cellular Automata Approach to Estimate IncidentRelated Travel Time on Interstate 66 in Near Real Time
(Virginia Center for Transportation Innovation and Research, 201003)Incidents account for a large portion of all congestion and a need clearly exists for tools to predict and estimate incident effects. This study examined (1) congestion back propagation to estimate the length of the queue ... 
A closedform method for calculating the angular distribution of multiply scattered photons through isotropic turbid slabs
(Optical Society of America, 201111)This paper develops a method for calculating the angular distribution (AD) of multiply scattered photons through isotropic turbid slabs. Extension to anisotropic scattering is also discussed. Previous studies have recognized ... 
a comparison of principal components from real and random data
(Ecological Society of America, 1985)We compared principal components derived from sets of real data with dimensions of 120 x 7, 120 x 4, 150 x 11, 150 x 8, 150 x 5, 454 x 12, 454 x 8, and 454 x 5, to those from sets of randomly generated data of corresponding ... 
A comparison of SuperDARN ACF fitting methods
(American Geophysical Union, 201305)The Super Dual Auroral Radar Network (SuperDARN) is a worldwide chain of HF radars which monitor plasma dynamics in the ionosphere. Autocorrelation functions are routinely calculated from the radar returns and applied to ... 
A comparison of viscoelastic stress wakes for twodimensional and threedimensional Newtonian drop deformations in a viscoelastic matrix under shear
(American Institute of Physics, 200907)A recent experimental study of a Newtonian drop suspended in a viscoelastic matrix undergoing simple shear displays a transient overshoot in drop deformation which is qualitatively similar to twodimensional (2D) numerical ... 
A computational study of nucleosomal DNA flexibility
(CELL PRESS, 200612)Molecular dynamics simulations of the nucleosome core particle and its isolated DNA free in solution are reported. The simulations are based on the implicit solvent methodology and provide insights into the nature of ... 
A conceptual model of the sense of presence in virtual environments
(MIT Press, 199904)This paper proposes a model of interaction in virtual environments which we term the immersion, presence, performance (IPP) model. This model is based on previous models of immersion and presence proposed by Barfield and ... 
A correlation force spectrometer for single molecule measurements under tensile load
(American Institute of Physics, 20130107)The dynamicalmechanical properties of a small region of fluid can be measured using two closely spaced thermally stimulated micrometerscale cantilevers. We call this technique correlation force spectroscopy (CFS). We ... 
A diffusionviscous analysis and experimental verification of defect formation in sintered silver bondline
(Cambridge University Press, 201404)The lowtemperature joining technique (LTJT) by silver sintering is being implemented by major manufacturers of power electronic devices and modules for bonding power semiconductor chips. A common dieattach material used ... 
A discretevelocity, stationary Wigner equation
(AIP Publishing, 200011)This paper is concerned with the onedimensional stationary linear Wigner equation, a kinetic formulation of quantum mechanics. Specifically, we analyze the wellposedness of the boundary value problem on a slab of the ... 
A Dual PET/MR Imaging Nanoprobe: 124I Labeled Gd3N@C80
(MDPI, 20120510)The current report describes the development of a dual modality tomographic agent for both positron emission tomography and magnetic resonance imaging (PET/MRI). The dualmodality agent in this study was based on a 124I ... 
A finite element splitting extrapolation for second order hyperbolic equations
(Siam Publications, 2009)Splitting extrapolation is an efficient technique for solving large scale scientific and engineering problems in parallel. This article discusses a finite element splitting extrapolation for second order hyperbolic equations ... 
A general convergence analysis of some Newtontype methods for nonlinear inverse problems
(Siam Publications, 2011)We consider the methods x(n+1)(delta)  x(n)(delta)  g(alpha n) (F'(x(n)(delta))* F'(x(n)(delta)))F'(x(n)(delta))*(F(x(n)(delta))  y(delta)) for solving nonlinear illposed inverse problems F(x) = y using the only available ... 
A generalized rule for large piezoelectric response in perovskite oxide ceramics and its application for design of leadfree compositions
(American Institute of Physics, 20090601)We present a general rule for the perovskite oxide ceramics: "A large piezoelectric constant in ABO(3) perovskite ceramics can be obtained by tuning the weight ratio of A and B sites, WA/WB or WB/WA, to 3. Piezoelectric ...