Now showing items 3108-3127 of 3883

    • Root-heavy Directory Tree on Direct Access Storage Devices 

      Shen, Stewart N.T. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1974), CS74004-R
      No abstract available.
    • Rosenbrock-Krylov Methods for Large Systems of Differential Equations 

      Tranquilli, P.; Sandu, A. (Siam Publications, 2014-01-01)
    • Rotation of Polygonal Space Structures 

      Wang, Chang Y.; Watson, Layne T. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1990), TR-90-20
      The free rotation in space of flexible polygonal structures about their axes is studied. The large deformation equations are formulated, resulting in a set of sixth order nonlinear differential equations. The governing ...
    • Rotational and Translational Stiffness Provided by Insulated Metal Panels to Girts and Purlins in Metal Building Wall and Roof Systems 

      Wu, Haiteng; Moen, Cristopher Dennis (2016-02-06)
      The goal of this study is to quantify the restraint provided by insulated metal panels (IMPs) to girts and purlins in a metal building wall and roof system. These panels are fastened to their support members with screws ...
    • Routing 

      Ganesan, Venkatasubramaniam; Fox, Edward A. (2009-12-09)
      This module presents an overview of models and practices of Routing, leading to better search result quality in Digital Libraries.
    • Runtime Systems: Taming the High Performance Computing Beast (CS Seminar Lecture Series) 

      Ribbens, Calvin J. (2012-02-03)
      Abstract: High performance computing (HPC) is an area of computer science and engineering that has always evolved rapidly---sometimes leading and sometimes riding succeeding waves of technical innovation. While HPC application ...
    • S4W: Globally Optimized Design of Wireless Communication Systems 

      He, Jian; Verstak, Alex; Watson, Layne T.; Stinson, C.A.; Ramakrishnan, Naren; Shaffer, Clifford A.; Rappaport, Theodore S.; Anderson, Christopher R.; Bae, Kyung; Jiang, Jing; Tranter, William H. (Department of Computer Science, Virginia Polytechnic Institute & State University, 2002-07-01), TR-02-16
      In this paper, a global optimization technique is applied to solve the optimal transmitter placement problem for indoor wireless systems. An efficient pattern search algorithm -- DIRECT (DIviding RECTangles) of Jones,Perttunen, ...
    • A Sampling Filter for Non-Gaussian Data Assimilation 

      Attia, A.; Sandu, A.
      Data assimilation combines information from models, measurements, and priors to estimate the state of a dynamical system such as the atmosphere. The Ensemble Kalman filter (EnKF) is a family of ensemble-based data assimilation ...
    • Sapphire Fibers: Optical Attenuation And Splicing Techniques 

      Barnes, Adam E.; May, Russell G.; Gollapudi, Sridhar; Claus, Richard O. (Optical Society of America, 1995-12-01)
      The optical attenuation in sapphire fibers was examined. Attenuation was found to depend heavily on injection conditions. A number of techniques for making sapphire-silica fiber splices were attempted, with an effort toward ...
    • SART-Type Image Reconstruction from a Limited Number of Projections with the Sparsity Constraint 

      Yu, Hengyong; Wang, Ge (Hindawi, 2010-04-26)
      Based on the recent mathematical findings on solving the linear inverse problems with sparsity constraints by Daubechiesx et al., here we adapt a simultaneous algebraic reconstruction technique (SART) for image reconstruction ...
    • SART-Type Image Reconstruction from Overlapped Projections 

      Yu, Hengyong; Ji, Changguo; Wang, Ge (Hindawi, 2010-09-05)
      To maximize the time-integrated X-ray flux from multiple X-ray sources and shorten the data acquisition process, a promising way is to allow overlapped projections from multiple sources being simultaneously on without ...
    • Satellite Formation Flight Simulation Using Multi-Constellation GNSS and Applications to Ionospheric Remote Sensing 

      Peng, YuXiang; Scales, Wayne A. (MDPI, 2019-11-30)
      The Virginia Tech Formation Flying Testbed (VTFFTB) is a global navigation satellite system (GNSS)-based hardware-in-the-loop (HIL) simulation testbed for spacecraft formation flying with ionospheric remote sensing ...
    • SBES Advanced Multi-scale CT Facility at Virginia Tech - From Multi-scale to Multi-energy and Multi-Parameter Imaging Capabilities 

      Wang, Ge; Wyatt, Chris L.; Yu, Hengyong; Sharma, Kriti S.; Prater, Renee; Xiao, Shuhai; Markert, Chad; Saul, Justin; Fox, Edward A.; Lee, Seung W.; Feser, Michael; Lau, S. H.; Yun, Wenbing; Wang, Steve (2010-04-05)
      While clinical CT scanners are available at our medical school, for preclinical imaging we have a Scanco micro-CT scanner, an Xradia micro-CT scanner and an Xradia nano-CT scanner. With all these scanners, we can cover ...
    • SBES News, Fall 2009 

      School of Biomedical Engineering and Sciences (Virginia Tech, 2009)
      This is the annual newsletter for the School of Biomedical Engineering and Sciences. In this issue: Our New Buildings Come to Life.
    • SBES News, Fall 2010 

      School of Biomedical Engineering and Sciences (Virginia Tech, 2010)
      This is the annual newsletter for the School of Biomedical Engineering and Sciences. In this issue: New Medical School, New Research Institute, New Partnerships.
    • SBES News, Fall 2011 

      School of Biomedical Engineering and Sciences (Virginia Tech, 2011)
      This is the annual newsletter for the School of Biomedical Engineering and Sciences. In this issue: 17 New Faculty Join SBES.
    • SBES News, Fall 2012 

      School of Biomedical Engineering and Sciences (Virginia Tech, 2012)
      This is the annual newsletter for the School of Biomedical Engineering and Sciences. In this issue: Doubled our Faculty.
    • SBES News, Fall 2013 

      School of Biomedical Engineering and Sciences (Virginia Tech, 2013)
      This is the annual newsletter for the School of Biomedical Engineering and Sciences. In this issue: Crusade Against Cancer.
    • SBES News, Summer/Fall 2008 

      School of Biomedical Engineering and Sciences (Virginia Tech, 2008)
      This is the annual newsletter for the School of Biomedical Engineering and Sciences.
    • Scalability Analysis of Parallel GMRES Implementations 

      Sosonkina, Masha; Allison, Donald C. S.; Watson, Layne T. (Department of Computer Science, Virginia Polytechnic Institute & State University, 2001), TR-01-06
      Applications involving large sparse nonsymmetric linear systems encourage parallel implementations of robust iterative solution methods, such as GMRES(k). Two parallel versions of GMRES(k) based on different data distributions ...