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Topic Area: Modeling
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Displaying records 81 to 90 of 135 records.
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81. Predicting Microstructure Development During Casting of Drug Eluting Coatings
Topic: Modeling
Published: 9/19/2010
Authors: David M. Saylor, Jonathan E Guyer, Daniel Wheeler, James A Warren
Abstract: We have devised a novel diffuse interface formulation to model the development of chem- ical and physical inhomogeneities, i.e. microstructure, during the process of casting drug eluting coatings. These inhomogeneities, which depend on the ...

82. Comment on "Frustrated Magnetization in Co Nanowires: Competition Between Crystal Anisotropy and Demagnetization Energy"
Topic: Modeling
Published: 9/15/2010
Authors: Kristof M. Lebecki, Michael J Donahue
Abstract: Bergmann et al. [Phys. Rev. B 77, 054414 (2008)] present an analytical theory explaining the behavior of ferromagnetic cobalt nanowires with perpendicular anisotropy. This theory, which predicts a sinusoidal variation of the magnetization along the l ...

83. Modelling Type Ia Supernova Light Curves
Topic: Modeling
Published: 9/15/2010
Authors: Bert W Rust, Dianne M O'Leary, Katharine M Mullen
Abstract: Type Ia supernova light curves are characterized by a rapid rise from zero luminosity to a peak value, followed by a slower quasi-exponential decline. The rise and peak last for a few days, while the decline persists for many months. It is widely b ...

84. A Flexible and Efficient Numerical Framework for Image Segmentation by Energy Minimization
Topic: Modeling
Published: 8/22/2010
Author: Gunay Dogan
Abstract: A widely used approach to image segmentation is to define corresponding segmentation energies and to compute shapes that are minimizers of these energies. In this work, we introduce a flexible and efficient numerical framework for minimization of suc ...

85. Modeling atomic structure at the nanoscale using the PDF: simulation studies of monoatomic nanoparticles
Topic: Modeling
Published: 8/17/2010
Authors: Katharine M Mullen, Victor Lvovich Krayzman, Igor Levin
Abstract: The pair distribution function (PDF), as determined from total x-ray or neutron scattering, is a valuable probe of atomic arrangements in nanoparticles. Structural information in such experimental PDF data is convoluted with the effects of particle ...

86. Spectral Based Methods That Streamline the Search for Failure Scenarios in Large-Scale Distributed Systems
Topic: Modeling
Published: 7/22/2010
Authors: Fern Y Hunt, Christopher E Dabrowski, Katherine Morrison
Abstract: We report our work on the development of analytical and numerical methods that enable the detection of failure scenarios in distributed grid computing, cloud computing and other large scale systems.

87. A Risk-Uncertainty Formula Accounting for Uncertainties of Failure Probability and Consequence in a Nuclear Powerplant
Topic: Modeling
Published: 7/20/2010
Authors: Jeffrey T Fong, Stephen R Gosselin, Pedro Vincente Marcal, James J Filliben, Nathanael A Heckert, Robert E Chapman
Abstract: This paper is a continuation of a recent ASME Conference paper entitled "Design of a Python-Based Plug-in for Bench-marking Probabilistic Fracture Mechanics Computer Codes with Failure Event Data" (PVP2009-77974). In that paper, which was co-authore ...

88. Detecting Cooling Coil Fouling Automatically-Part 1: A Novel Concept
Topic: Modeling
Published: 7/1/2010
Author: Daniel A Veronica
Abstract: Fouling of surfaces within the heat exchangers of heating, ventilating, and air conditioning (HVAC) systems of buildings is an equipment fault that wastes appreciable amounts of energy, however, it escapes detection under current building automation ...

89. Estimating Volumes of Near-spherical Molded Artifacts
Series: Journal of Research (NIST JRES)
Topic: Modeling
Published: 5/3/2010
Authors: David E. Gilsinn, Bruce R. Borchardt, Amelia Tebbe
Abstract: The Food and Drug Administration (FDA) is conducting research on developing reference lung cancer cancer lesions, called phantoms, to test computed tomography (CT) scanners and their software. FDA loaned two semi-spherical phantoms to the National In ...

90. Onset of Convection in Binary Liquid Layers
Topic: Modeling
Published: 3/24/2010
Authors: Geoffrey B McFadden, Sam Ray Coriell, Aaron Lott
Abstract: We perform linear stability calculations for horizontal bilayers of a two-component fluid that can undergo a phase transformation, taking into account both buoyancy effects and thermocapillary effects in the presence of a vertical temperature gradien ...

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