Now showing items 713-732 of 4045

    • Daily Variability in the Terrestrial UV Airglow 

      Immel, Thomas J.; Eastes, Richard W.; McClintock, William E.; Mende, Steven B.; Frey, Harald U.; Triplett, Colin; England, Scott L. (MDPI, 2020-09-30)
      New capability for observing conditions in the upper atmosphere comes with the implementation of global ultraviolet (UV) imaging from geosynchronous orbit. Observed by the NASA GOLD mission, the emissions of atomic oxygen ...
    • Damped soft phonons and diffuse scattering in 40%Pb(Mg1/3Nb2/3)O-3-60%PbTiO3 

      Stock, Chris; Ellis, D.; Swainson, I. P.; Xu, Guangyong; Hiraka, H.; Zhong, Z.; Luo, Hongjie; Zhao, X.; Viehland, Dwight D.; Birgeneau, R. J.; Shirane, Gen (American Physical Society, 2006-02-13)
      Using neutron elastic and inelastic scattering and high-energy x-ray diffraction, we present a comparison of 40% Pb(Mg1/3Nb2/3)O-3-60% PbTiO3 (PMN-60PT) with pure Pb(Mg1/3Nb2/3)O-3 (PMN) and PbTiO3 (PT). We measure the ...
    • Data analysis for characterization of IG110 and A3 by X-Ray diffraction and Raman spectroscopy 

      Wu, Huali; Gakhar, Ruchi; Chen, Allen; Zhou, Zhou; Scarlat, Raluca O. (2020-10)
      This article contains data related to the research journal paper titled 'Comparative Analysis of Microstructure and Reactive Sites for Nuclear Graphite IG-110 and Graphite Matrix A3", Journal of Nuclear Materials 528 (2020) ...
    • Data and Activity Representation for Grid Computing 

      Karnik, Amit; Ribbens, Calvin J. (Department of Computer Science, Virginia Polytechnic Institute & State University, 2002-07-01), TR-02-13
      Computational grids are becoming increasingly popular as an infrastructure for computa- tional science research. The demand for high-level tools and problem solving environments has prompted active research in Grid Computing ...
    • Data Driven Surrogate Based Optimization in the Problem Solving Environment WBCSim 

      Deshpande, Shubhangi; Watson, Layne T.; Shu, Jiang; Kamke, Frederick A.; Ramakrishnan, Naren (Department of Computer Science, Virginia Polytechnic Institute & State University, 2009), TR-09-24
      Large scale, multidisciplinary, engineering designs are always difficult due to the complexity and dimensionality of these problems. Direct coupling between the analysis codes and the optimization routines can be prohibitively ...
    • Data Leak Detection As a Service: Challenges and Solutions 

      Shu, Xiaokui; Yao, Danfeng (Daphne) (Department of Computer Science, Virginia Polytechnic Institute & State University, 2012), TR-12-10
      We describe a network-based data-leak detection (DLD) technique, the main feature of which is that the detection does not require the data owner to reveal the content of the sensitive data. Instead, only a small amount of ...
    • Data-driven statistical modeling of the emergent behavior of biohybrid microrobots 

      Leaman, Eric J.; Sahari, Ali; Traore, Mahama A.; Geuther, Brian Q.; Morrow, Carmen M.; Behkam, Bahareh (2020-03-01)
      Multi-agent biohybrid microrobotic systems, owing to their small size and distributed nature, offer powerful solutions to challenges in biomedicine, bioremediation, and biosensing. Synthetic biology enables programmed ...
    • A Database Driven Initial Ontology for Crisis, Tragedy, and Recovery 

      Sheetz, Steven D. (2011-05-01)
      Many databases and supporting software have been developed to track the occurrences of natural disasters, manmade disasters, and combinations of the two. Each of the databases developed in this context, define their own ...
    • Dayside Magnetospheric and Ionospheric Responses to a Foreshock Transient on 25 June 2008: 1. FLR Observed by Satellite and Ground-Based Magnetometers 

      Shen, Xiao-Chen; Shi, Quanqi; Wang, Boyi; Zhang, Hui; Hudson, Mary K.; Nishimura, Yukitoshi; Hartinger, Michael D.; Tian, Anmin; Zong, Qiu-Gang; Rae, I. J.; Degeling, Alexander W. (2018-08)
      As one type of driver of magnetospheric Alfven waves, foreshock transients have received less attention than, for example, the Kelvin-Helmholtz instability, discrete and broadband frequency solar wind dynamic pressure ...
    • DBS: a fast and informative segmentation algorithm for DNA copy number analysis 

      Ruan, Jun; Liu, Zhen; Sun, Ming; Wang, Yue; Yue, Junqiu; Yu, Guoqiang (2019-01-03)
      Background Genome-wide DNA copy number changes are the hallmark events in the initiation and progression of cancers. Quantitative analysis of somatic copy number alterations (CNAs) has broad applications in cancer research. ...
    • Deactivation of Ascaris suum eggs using electroporation and sequential inactivation with chemical disinfection 

      Niven, C.; Parker, C. B.; Wolter, S. D.; Dryzer, M. H.; Arena, C. B.; Stoner, B. R.; Ngaboyamahina, E. (2020-09)
      Electroporation has been evaluated as a potential backend wastewater treatment for deactivation ofAscaris suumeggs in buffer solution. Initial results indicate that eggshell permeability is affected by the pulse train ...
    • Debonding of confined elastomeric layer using cohesive zone model 

      Mukherjee, B.; Dillard, D. A.; Moore, R. B.; Batra, R. C. (Elsevier Sci Ltd, 2016-04-01)
    • Deceleration of a Porous Rotating Disk in a Viscous Fluid 

      Watson, Layne T.; Sankara, Kishore Kumar; Mounfield, Luegina (Department of Computer Science, Virginia Polytechnic Institute & State University, 1983), CS83029-R
      The flow due to a rotating disk decelerating with an angular velocity inversely proportional to time with either surface suction (or injection) which again varies with time is investigated. The unsteady Navier-Stokes ...
    • Deceleration of a Rotating Disk in a Viscous Fluid 

      Watson, Layne T.; Wang, Chang Y. (AIP Publishing, 1979)
      A disk rotating in a viscous fluid decelerates with an angular velocity inversely proportional to time. It is found that the unsteady Navier–Stokes equations admit similarity solutions which depend on a nondimensional ...
    • A Decellularized Porcine Xenograft-Derived Bone Scaffold for Clinical Use as a Bone Graft Substitute: A Critical Evaluation of Processing and Structure 

      Bracey, Daniel N.; Seyler, Thorsten M.; Jinnah, Alexander H.; Lively, Mark O.; Willey, Jeffrey S.; Smith, Thomas L.; Van Dyke, Mark E.; Whitlock, Patrick W. (MDPI, 2018-07-12)
      Background: Bone grafts are used in approximately one half of all musculoskeletal surgeries. Autograft bone is the historic gold standard but is limited in supply and its harvest imparts significant morbidity to the patient. ...
    • A decision support system for indirect potable reuse based on integrated modeling and futurecasting 

      Lodhi, A.G.; Godrej, A.N.; Sen, D.; Angelotti, R.; Brooks, M. (IWA, 2019-04-09)
      Optimal operation of water reclamation facilities (WRFs) is critical for an indirect potable reuse (IPR) system, especially when the reclaimed water constitutes a major portion of the safe yield, as in the case of the ...
    • Decoding The Spectra Of Low-Finesse Extrinsic Optical Fiber Fabry-Perot Interferometers 

      Ma, C.; Dong, Bin; Gong, J. M.; Wang, Anbo (Optical Society of America, 2011)
      A theoretical model is developed to address the fringe visibility and additional phase in the interference spectra of low-finesse extrinsic optical fiber excited Fabry-Perot interferometers. The model described in the paper ...
    • Decomposing Rectilinear Figures into Rectangles 

      Chadha, Ritu; Allison, Donald C. S. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1988), TR-88-17
      We discuss the problem of decomposing rectilinear regions, with or without holes, into a minimum number of rectangles. There are two different problems considered here: decomposing a figure into non-overlapping parts, ...
    • The Decomposition of Rademacher-Walsh Spectra 

      Muzio, Jon C. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1977), CS77007-R
      No abstract available.
    • Deep Learning Models for Estimation of the SuperDARN Cross Polar Cap Potential 

      Liu, Erxiao; Hu, Hongqiao; Liu, Jianjun; Qiao, Lei (2020-08)
      We present deep learning models for cross polar cap potential (CPCP) by applying multilayer perceptron (MLP) and long short-term memory (LSTM) networks to estimate CPCP based on Super Dual Auroral Radar Network (SuperDARN) ...