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Now showing items 539-558 of 3128

    • 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 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 ...
    • 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 ...
    • Debonding of confined elastomeric layer using cohesive zone model 

      Mukherjee, B; Dillard, DA; Moore, RB; Batra, RC (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. ...
    • 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.
    • DeepARG: a deep learning approach for predicting antibiotic resistance genes from metagenomic data 

      Arango-Argoty, Gustavo; Garner, Emily; Pruden, Amy; Heath, Lenwood S; Vikesland, Peter; Zhang, Liqing (2018-02-01)
      Abstract Background Growing concerns about increasing rates of antibiotic resistance call for expanded and comprehensive global monitoring. Advancing methods for monitoring ...
    • Defect and adsorbate induced ferromagnetic spin-order in magnesium oxide nanocrystallites 

      Kumar, Amit; Kumar, J.; Priya, Shashank (AIP Publishing, 2012-05-01)
      We report the correlation between d(0) ferromagnetism, photoluminescence (PL), and adsorbed hydrogen (H-) species in magnesium oxide (MgO) nanocrystallites. Our study suggests that the oxygen vacancies, namely singly ionized ...
    • Defect assistant band alignment transition from staggered to broken gap in mixed As/Sb tunnel field effect transistor heterostructure 

      Zhu, Yizheng; Jain, Nikhil; Vijayaraghavan, S.; Mohata, Dheeraj K.; Datta, Suman; Lubyshev, Dmitri; Fastenau, Joel M.; Liu, Amy K.; Monsegue, Niven; Hudait, Mantu K. (American Institute of Physics, 2012-11-01)
      The compositional dependence of effective tunneling barrier height (E-beff) and defect assisted band alignment transition from staggered gap to broken gap in GaAsSb/InGaAs n-channel tunnel field effect transistor (TFET) ...
    • Definability of Boolean Function Over Many-value Boolean Algebra 

      Kang, Andy N. C.; Shen, Stewart N.T. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1974), CS74007-R
      In this paper, the definability of functions over B_s is first briefly discussed. We then give necessary and sufficient conditions on the definable functions over B_2, boolean algebra of four values. An efficient algorithm ...
    • Defining Software Quality Measures: A Systematic Approach Embedded in the Objectives, Principles, Attributes Framework 

      Bundy, Gary N.; Arthur, James D. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1992), TR-92-38
      Currently, software quality measures and metrics are being developed in isolation and often without the benefit of a guiding framework. In this paper we describe a systematic process for identifying measurement approaches ...
    • Definitions of Interdisciplinary Research: Toward Graduate-Level Interdisciplinary Learning Outcomes 

      Borrego, Maura Jenkins; Newswander, L. K. (Johns Hopkins Univ Press, 2010)
      Combining the interdisciplinary studies (primarily humanities) literature with the content analysis of 129 successful National Science Foundation proposals written predominantly by science and engineering faculty members, ...
    • Delay-Universal Channel Coding With Feedback 

      Noor-A-Rahim, Md; Khyam, M. O.; Guan, Yong Liang; Ali, G. G. Md Nawaz; Nguyen, Khoa D.; Lechner, Gottfried (IEEE, 2018)
      In this paper, the design of error-correcting or channel codes for delay-universal/anytime communication is shown while considering systems with and without a feedback link. We construct practical and low complexity anytime ...
    • Demagnetizing factors for two parallel ferromagnetic plates and their applications to magnetoelectric laminated sensors 

      Liverts, Edward; Grosz, Asaf; Zadov, Boris; Bichurin, Mirza I.; Pukinskiy, Yuri J.; Priya, Shashank; Viehland, Dwight D.; Paperno, Eugene (American Institute of Physics, 2011-04-01)
      An analytical expression is derived to approximate the magnetometric demagnetizing factors for two parallel ferromagnetic plates having the shape of rectangular prisms. The magnetometric demagnetizing factors relate the ...