Browsing College of Science (COS) by Title
Now showing items 2645 of 965

a numerical study of periodic disturbances on twolayer Couette flaw
(AIP Publishing, 199812)The flow of two viscous liquids is investigated numerically with a volume of fluid scheme. The scheme incorporates a semiimplicit Stokes solver to enable computations at low Reynolds numbers, and a secondorder velocity ... 
a population of z > 2 farinfrared herschelspireselected starbursts
(IOP Publishing Ltd., 201212)We present spectroscopic observations for a sample of 36 HerschelSpire 250500 mu m selected galaxies (HSGs) at 2 < z < 5 from the Herschel Multitiered Extragalactic Survey. Redshifts are confirmed as part of a large ... 
a precision test for an extra spatial dimension using blackholepulsar binaries
(IOP Publishing Ltd., 201108)We discuss the observable effects of enhanced black hole mass loss in a black holeneutron star (BHNS) binary, due to the presence of a warped extra spatial dimension of curvature radius L in the braneworld scenario. For ... 
a redshift survey of herschel farinfrared selected starbursts and implications for obscured star formation
(IOP Publishing Ltd., 201212)We present Keck spectroscopic observations and redshifts for a sample of 767 HerschelSPIRE selected galaxies (HSGs) at 250, 350, and 500 mu m, taken with the Keck I Low Resolution Imaging Spectrometer and the Keck II DEep ... 
A regularized GaussNewton trust region approach to imaging in diffuse optical tomography
(Siam Publications, 2011)We present a new algorithm for the solution of nonlinear least squares problems arising from parameterized imaging problems with diffuse optical tomographic data [D. Boas et al., IEEE Signal Process. Mag., 18 (2001), pp. ... 
A Series of Supramolecular Complexes for Solar Energy Conversion via Water Reduction to Produce Hydrogen: An Excited State Kinetic Analysis of Ru(II),Rh(III),Ru(II) Photoinitiated Electron Collectors
(MDPI, 20111227)Mixedmetal supramolecular complexes have been designed that photochemically absorb solar light, undergo photoinitiated electron collection and reduce water to produce hydrogen fuel using low energy visible light. This ... 
A simple model of circadian rhythms based on dimerization and proteolysis of PER and TIM
(CELL PRESS, 199911)Many organisms display rhythms of physiology and behavior that are entrained to the 24h cycle of light and darkness prevailing on Earth. Under constant conditions of illumination and temperature, these internal biological ... 
A state space error estimate for poddeim nonlinear model reduction
(Siam Publications, 2012)This paper derives state space error bounds for the solutions of reduced systems constructed using proper orthogonal decomposition (POD) together with the discrete empirical interpolation method (DEIM) recently developed ... 
A uniqueness result for pMonotone viscosity solutions of HamiltonJacobi equations in bounded domains
(Siam Publications, 2009)We consider a class of HamiltonJacobi equations H(x, Du(x))  0 with no udependence and with continuity properties consistent with recent applications in queueing theory. Continuous viscosity solutions are considered in ... 
A volumeoffluid formulation for the study of coflowing fluids governed by the HeleShaw equations
(American Institute of Physics, 201308)We present a computational framework to address the flow of two immiscible viscous liquids which coflow into a shallow rectangular container at one side, and flow out into a holding container at the opposite side. Assumptions ... 
A Water Maser Flare in W49N: Amplification by a Rotating Foreground Cloud
(IOP PUBLISHING LTD, 199812)We monitored the 22 GHz H2O maser emission toward W49N from December 1989 through May 1990. During this period we observed an outburst in a component at 66.25 km s(1). The flux density of the flaring component increased ... 
Asite dopinginduced renormalization of structural transformations in the PbSc0.5Nb0.5O3 relaxor ferroelectric under high pressure
(American Physical Society, 20100501)The effect of Asite incorporated Ba2+ and Bi3+ on the pressuredriven structural transformations in Pbbased perovskitetype relaxor ferroelectrics has been studied with in situ xray diffraction and Raman scattering of ... 
Abacus proofs of Schur function identities
(Siam Publications, 2010)This article uses combinatorial objects called labeled abaci to give direct combinatorial proofs of many familiar facts about Schur polynomials. We use abaci to prove the Pieri rules, the LittlewoodRichardson rule, the ... 
AcylHomoserine Lactone Recognition and Response Hindering the QuorumSensing Regulator EsaR
(Public Library of Science, 20140919)During quorum sensing in the plant pathogen Pantoea stewartii subsp. stewartii, EsaI, an acylhomoserine lactone (AHL) synthase, and the transcription factor EsaR coordinately control capsular polysaccharide production. ... 
Adapting to Symptoms of Global Warming Rather Than Addressing the Cause
(Virginia Tech, 20140122)In recent years, global warming has been ignored and scientists producing evidence supporting this hypothesis have been denigrated and even investigated. However, as irrefutable evidence showing that global warming was a ... 
Aging in coarsening diluted ferromagnets
(American Physical Society, 201010)We comprehensively study nonequilibrium relaxation and aging processes in the twodimensional randomsite Ising model through numerical simulations. We discuss the dynamical correlation length as well as scaling functions ... 
Aging processes in systems with anomalous slow dynamics
(American Physical Society, 20130114)Recently, different numerical studies of coarsening in disordered systems have shown the existence of a crossover from an initial, transient, powerlaw domain growth to a slower, presumably logarithmic, growth. However, ... 
algal periphyton growth on nutrientdiffusing substrates: an in situ bioassay
(Ecological Society of America, 1985)Differences in nutrient limitation for dominant species within an algal periphyton community were determined using additions of N and P supplied by nutrientdiffusing artificial substrates. Sealed clay flowerpots were ... 
alphastates in de Sitter space
(American Physical Society, 200502)Field theory in de Sitter space admits a oneparameter family of vacua determined by a superselection parameter alpha. Of these vacua, the Euclidean vacuum uniquely extrapolates to the vacuum of flat Minkowski space. States ... 
Aluminum plasmonic nanostructures for improved absorption in organic photovoltaic devices
(AIP Publishing, 201103)We model the absorption enhancement in organic photovoltaic devices induced by incorporating Al, Ag, and Au nanoparticles in the active layer. We find that Al nanoparticles should yield significantly greater enhancement ...