archive-edu.com » EDU » R » RPI.EDU

Total: 920

Choose link from "Titles, links and description words view":

Or switch to "Titles and links view".
  • RPI SCOREC - Technical Reports
    the α RDX crystal subjected to atmospheric pressure The barriers for transition between these conformers are evaluated using a molecular model both in vacuum and in the crystal Apart from Caae the only conformer stabilized in α RDX is Caee and this occurs when the crystal is strained The concentration of Caee depends on strain and temperature The conformers interact elastically and electrostatically which leads to their spatial clustering Furthermore

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=559 (2015-07-15)
    Open archived version from archive


  • RPI SCOREC - Technical Reports
    aims to develop reliable and efficient parallel curved meshing techniques to support large scale simulations using higher order finite element methods The mathematical fundamentals of the Bezier polynomial based shape representation for high order curved elements are reviewed Based on the shape representation a hybrid shape metric is proposed to serve for both linear straight sided elements and high order curved elements Novel extensions to the Bezier control point based

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=565 (2015-07-15)
    Open archived version from archive

  • RPI SCOREC - Technical Reports
    resolution However to employ the full fluorescence time measurements a light propagation model that accurately simulates weakly diffused and multiple scattered photons is required In this article we derive a computationally efficient Monte Carlo based method to compute time gated fluorescence Jacobians for the simultaneous imaging of two fluorophores with lifetime contrast The Monte Carlo based formulation is validated on a synthetic murine model simulating the uptake in the kidneys

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=577 (2015-07-15)
    Open archived version from archive

  • RPI SCOREC - Technical Reports
    the adjoint Monte Carlo aMC method and the mid way Monte Carlo mMC method The effects of the different parameters that affect the computation time and statistics reliability were evaluated Also the methods were applied to a set of experimental data for tomographic application Results In silico results establish that the investigated parameters affect the computational time for the three methods differently linearly quadratically or not significantly Moreover the noise

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=579 (2015-07-15)
    Open archived version from archive

  • RPI SCOREC - Technical Reports
    Abstract We study the deformation of a network of entangled non cross linked semiflexible fibers subjected to compression We show that the deformation is intermittent heterogeneous and dominated by the occurrence of avalanches Avalanches imply relative fiber sliding and rearrangement and lead to a serrated stress strain curve A large fraction of the fibers in the system contribute to an avalanche and the amplitudes of the sliding events are correlated

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=630 (2015-07-15)
    Open archived version from archive

  • RPI SCOREC - Technical Reports
    networks The discussion refers to athermal fiber networks for which the governing functional is the system enthalpy as well as to molecular networks in which thermal fluctuations are important Fiber networks are broadly encountered in every day life as paper insulation and damping materials and as the essential component of some consumer products while molecular networks for the structure of biological and non biological materials such as the cytoskeleton connective tissue gels and rubber The mechanics of these materials is defined by the structure of the network and by the mechanical behavior of individual filaments The structure is characterized by a number of parameters such as the density filament orientation fiber waviness density and nature of cross links which are discussed in the first part of the article The constitutive behavior of individual filaments is defined by their bending and axial stiffness and by the response to thermal fluctuations The constitutive response of the cross links plays a central role in defining the system scale mechanical behavior The analysis of the network mechanics is divided into two parts addressing cross linked and entangled non cross linked networks Both molecular and athermal cross linked networks are discussed while only the literature

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=637 (2015-07-15)
    Open archived version from archive

  • RPI SCOREC - Technical Reports
    methods to solve viscous flow problems The procedure presented is an appropriate combination of anisotropic and bound ary layer mesh adaptation that accounts for the need to use curved mesh edges and faces to maintain the required geometric approximation and mesh gradation within the boundary layers The paper first discusses the mesh adaptation tools needed to create effective adapted meshes for higher order viscous flow simulations Consideration is then given

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=458 (2015-07-15)
    Open archived version from archive

  • RPI SCOREC - Technical Reports
    Wide angle X ray scattering WAXS patterns of isotactic polypropylene iPP were analyzed in terms of the ideal WAXS patterns of their individual phases Analysis was done with the technique of simulated annealing This analysis is a novel method for simultaneously obtaining the volume fractions of the crystalline and amorphous phases and the average lamellar thickness of the individual crystalline phases The method is different from traditional methods as it

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=462 (2015-07-15)
    Open archived version from archive



  •