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Topic Area: Modeling

Displaying records 61 to 70 of 143 records.
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61. Towards a Metric for Communication Network Vulnerability to Attacks: A Game Theoretic Approach
Topic: Modeling
Published: 2/13/2012
Authors: Assane Gueye, Vladimir V Marbukh
Abstract: In this paper, we propose a quantification of the vulnerability of a communication network when links are subject to failures due to the actions of a strategic adversary. We model the adversarial nature of the problem as a 2-player game between a net ...

62. First Variation of the General Curvature-dependent Surface Energy
Topic: Modeling
Published: 1/1/2012
Authors: Gunay Dogan, Ricardo H. Nochetto
Abstract: We consider general weighted surface energies, where the energies have the form of weighted integrals over a closed surface and the weight depends on the normal and the mean curvature of the surface. Energies of this form have applications in many ar ...

63. Predicted Energy Resolution of a Running-Sum Algorithm for Microcalorimeters
Topic: Modeling
Published: 12/1/2011
Authors: Bradley K Alpert, William Bertrand Doriese, Joseph Westbrook Fowler, Joel Nathan Ullom
Abstract: The energy resolution of a high-pulse-rate filtering algorithm recently introduced by Hui Tan et al., based on running sums of TES microcalorimeter output streams, is predicted from average pulse shape and noise autocovariance. We compare with empiri ...

64. Comparing VM-Placement Algorithms for On-Demand Clouds
Topic: Modeling
Published: 11/29/2011
Authors: Kevin L Mills, James J Filliben, Christopher E Dabrowski
Abstract: Much recent research has been devoted to investigating algorithms for allocating virtual machines (VMs) to physical machines (PMs) in infrastructure clouds. Many such algorithms address distinct problems, such as initial placement, consolidation, or ...

65. Fundamental Solution of Laplace's Equation in Hyperspherical Geometry
Topic: Modeling
Published: 11/29/2011
Author: Howard S Cohl
Abstract: Due to the isotropy of $d$-dimensional hyperspherical space, one expects there to exist a spherically symmetric fundamental solution for its corresponding Laplace-Beltrami operator. The $R$-radius hypersphere ${\mathbf S}_R^d$ with $R>0$, represents ...

66. VM Leakage and Orphan Control in Open-Source Clouds
Topic: Modeling
Published: 11/29/2011
Authors: Christopher E Dabrowski, Kevin L Mills
Abstract: Computer systems often exhibit degraded performance due to resource leakage caused by erroneous programming or malicious attacks, and computers can even crash in extreme cases of resource exhaustion. The advent of cloud computing provides increased o ...

67. In Search of Enhanced Electrolyte Materials: A Case Study of Doubly Doped Ceria
Topic: Modeling
Published: 10/28/2011
Authors: Pratik Dholabhai, James B. Adams, Peter A. Crozier, Renu Sharma
Abstract: Various compositions of gadolinium-praseodymium doubly doped ceria (GPDC) have been studied to appreciate the effect of two co-dopants in enhancing the ionic conductivity. A Kinetic Lattice Monte Carlo (KLMC) model of vacancy diffusion in GPDC has be ...

68. Mathematical Model Formulation and Validation of Water and Cryoprotective Agent Transport in Whole Hamster Pancreatic Islets
Topic: Modeling
Published: 10/11/2011
Authors: James D. Benson, Charles T Benson, John K Critser
Abstract: A mathematical and conceptual model of water and solute transport for whole hamster pancreatic islets has been developed and experimentally validated incorporating fundamental biophysical data from previous studies on individual hamster islet cells ...

Series: Journal of Research (NIST JRES)
Report Number: 116-5
Topic: Modeling
Published: 10/5/2011
Authors: Kevin L Mills, James J Filliben
Abstract: Experimenters characterize the behavior of simulation models for data communications networks by measuring multiple responses under selected parameter combinations. The resulting multivariate data may include redundant responses reflecting aspects of ...

70. A Mathematical Model of Joint Congestion Control and Routing in Multisource Networks
Topic: Modeling
Published: 9/28/2011
Authors: Fern Y Hunt, Vladimir V Marbukh, Yi Wang
Abstract: In this paper we study a model of joint congestion control and routing in a ring of network sources with a single destination at the center. A utility maximization problem subject to routing constraints is posed and equations for its solution are pre ...

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