Now showing items 327-346 of 2184

    • Daily Wind Accelerations in Mountain Valleys in Western Montana 

      Militti, Joseph
      Valley regions within the Rocky Mountains frequently experience high wind events based on a variety of reasons. In the western Montana area there is a specific wind event that occurs almost daily, one to two days at most ...
    • Damping of Seismic Vibrations of a 3D Asymmetrical Building Model with Multiple TMD’s 

      Pinelli, Jean-Paul; Chen, Kai; Gutierrez, Hector; Rusovici, Razvan (2014-07)
      In this paper, the authors investigate the control of the seismic response of a three dimensional asymmetrical tier-building model, with a combination of three tuned mass dampers (TMD) located on the upper floor of the ...
    • Data Assimilation of AVHRR and MODIS data for Land Base Initialization and Boundary Conditions in the UTC-M Atmospheric Boundary Layer Sea-Breeze Model of Space Coast Florida 

      Bostater, Charles R.; King, Jerome; Huddleston, Lisa H.; Bassetti, Luce (2004-02-26)
      The purpose of this paper is to present results of simulations of the Florida Tech UTC-M sea-breeze model²² with the addition of a simplified atmospheric downwelling radiation subroutine¹’⁴ combined and a thermal inertia ...
    • Dead cores of singular Dirichlet boundary value problems with φ-Laplacian 

      Agarwal, Ravi P.; O'Regan, Donal; Staněk, Svatoslav (2008-08)
      The paper discusses the existence of positive solutions, dead core solutions and pseudodead core solutions of the singular Dirichlet problem (ϕ(u′))′ = λf(t, u, u′), u(0) = u(T) = A. Here λ is the positive parameter, A > ...
    • Decision Support for Shared Responsibility of Cloud Security Metrics 

      Al Moteri, Moteeb Aieed (2017-12)
      With the rapid growth of cloud computing and the increasing importance of measuring the security of cloud systems, more attention has been focused on the need for security metrics that are specific to cloud computing. ...
    • Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at √sNN=2.76 TeV 

      The CMS collaboration; Khachatryan, V.; Sirunyan, A.M.; Baarmand, M.M.; Hohlmann, Marcus; Colafranceschi, Stefano; Bhopatkar, Vallary; Noonan, D.; Roy, Tuhin S.; Yumiceva, Francisco X. (2016-11-09)
      Interactions between jets and the quark-gluon plasma produced in heavy ion collisions are studied via the angular distributions of summed charged-particle transverse momenta (pT) with respect to both the leading and ...
    • Decreasing Bouts of Prolonged Sitting Among Office Workers 

      Green, Nicholas (2015-05)
      Health care costs of preventable diseases such as cardiovascular disease, type II diabetes, and obesity are higher than ever, and indicate the need for behavioral interventions. Research has shown that individuals who ...
    • Deep defects in narrow-gap semiconductors 

      Li, WeiGang; Patterson, James D. (1994-11-15)
      We use a Green’s-function technique to calculate the position of deep defects in narrow-gap semiconductors. In order to predict chemical trends, we examine the effects of several different chemical elements. Substitutional ...
    • Deep multiwaveband observations of the jets of 0208-512 and 1202-262 

      Perlman, Eric S.; Georganopoulos, Markos; Marshall, Herman L.; Schwartz, Daniel A.; Padgett, Charles A.; Gelbord, Jonathan M.; Lovell, James E. J.; Worrall, Diana M.; Birkinshaw, Mark; Murphey, David W. (2011-09-07)
      We present deep Hubble Space Telescope, Chandra, Very Large Array, and Australia Telescope Compact Array images of the jets of PKS 0208-512 and PKS 1202-262, which were found in a Chandra survey of a flux-limited sample ...
    • A DEEP SEARCH for ADDITIONAL SATELLITES AROUND the DWARF PLANET HAUMEA 

      Burkhart, Luke D.; Ragozzine, Darin A.; Brown, Michael E. (2016-05-27)
      Haumea is a dwarf planet with two known satellites, an unusually high spin rate, and a large collisional family, making it one of the most interesting objects in the outer solar system. A fully self-consistent formation ...
    • A deep search for the host galaxies of gamma-ray bursts with no detected optical afterglow 

      Rossi, Andrea; Klose, Sylvio; Ferrero, Patrizia; Greiner, Jochen; Arnold, Laura A.; Gonsalves, E. E.; Hartmann, Dieter H H; Updike, Adria C.; Kann, Davidalexander; Krühler, Thomas (2012-09)
      Context. Gamma-ray bursts (GRBs) can provide information about star formation at high redshifts. Even in the absence of a bright optical/near-infrared/radio afterglow, the high detection rate of X-ray afterglows by Swift/XRT ...
    • The deep x-ray radio blazar survey. III. radio number counts, evolutionary properties, and luminosity function of blazars 

      Padovani, Paolo; Giommi, Paolo; Landt, Hermine; Perlman, Eric S. (2007-07-10)
      Our knowledge of the blazar surface densities and luminosity functions, which are fundamental parameters, relies still on samples at relatively high flux limits. As a result, our understanding of this rare class of active ...
    • Degenerate anisotropic differential operators and applications 

      Shakhmurov, Veli B.; Agarwal, Ravi P.; O'Regan, Donal (2011-02-23)
      The boundary value problems for degenerate anisotropic differential operator equations with variable coefficients are studied. Several conditions for the separability and Fredholmness in Banach-valued Lp spaces are given. ...
    • Delay in solar energetic particle onsets at high heliographic latitudes 

      Dalla, Silvia C.; Balogh, André; Krucker, Säm Ä M.; Posner, Arik; Müller-Mellin, Reinhold; Anglin, J. D.; Hofer, Mirjam Y.; Marsden, Richard G.; Sanderson, T. R.; Zhang, Ming (2003-06-30)
      Ulysses observations have shown that solar energetic particles (SEPs) can easily reach high heliographic latitudes. To obtain information on the release and propagation of SEPs prior to their arrival at Ulysses, we ...
    • Denial of service on direct democracy peer to peer protocol 

      Finley, Robert; Busick, Brandi; Mathew, Ben
      The purpose of this project is to provide the first-ever implementation of a suspected vulnerability to the DDP2P app so that Dr. Silaghi’s research students can understand the impact of a such a major vulnerability and ...
    • Denoising medical imagery using a novel framework 

      Kozaitis, Samuel P.; Mehta, Jeetkumar M.; Ponkia, S. (2011-06-03)
      We proposed a novel framework that allows a method optimized for white noise to be used for denoising CT imagery. We considered low-dose x-ray CT imagery where lowering the dose of x-rays results in an increase in quantum ...
    • Denoising of imagery for inspection tasks using higher-order statistics 

      Kozaitis, Samuel P. (2006-10-12)
      We reduced noise in images using a higher-order, correlation-based method. In this approach, wavelet coefficients were classified as either mostly noise or mostly signal based on third-order statistics. Because the higher ...
    • Denoising of x-ray imagery with spatially-varying estimates of noise variance 

      Kozaitis, Samuel P. (2010-04-05)
      We described a way to use a block-matching 3-D denoising algorithm to reduce noise in x-ray imagery. We first filtered an image multiple times using different estimates of the noise variance. From a simple estimate of the ...
    • Denoising using adaptive thresholding and higher order statistics 

      Kozaitis, Samuel P.; Young, Tim (2009-03-19)
      We showed that a hard threshold for wavelet denoising based on higher order statistics is comparable to a second order soft threshold. The hard threshold can be made adaptive by using a third order statistic as an estimate ...
    • Denoising using higher-order statistics 

      Kozaitis, S.P.; Kim, Sunghee (2003-04-01)
      We used a higher-order correlation-based method for signal denoising. In our approach, we determined which wavelet coefficients contained mostly noise, or signal, based on higher-order statistics. Because the higher that ...