61,571 research outputs found
The space-time conservation element and solution element scheme for simulating two-phase flow in pipes
On the Poincare Gauge Theory of Gravitation
We present a compact, self-contained review of the conventional gauge
theoretical approach to gravitation based on the local Poincare group of
symmetry transformations. The covariant field equations, Bianchi identities and
conservation laws for angular momentum and energy-momentum are obtained.Comment: v2: minor changes, references added; 18 pages, no figure
An Application of Reversible Entropic Dynamics on Curved Statistical Manifolds
Entropic Dynamics (ED) is a theoretical framework developed to investigate
the possibility that laws of physics reflect laws of inference rather than laws
of nature. In this work, a RED (Reversible Entropic Dynamics) model is
considered. The geometric structure underlying the curved statistical manifold,
M is studied. The trajectories of this particular model are hyperbolic curves
(geodesics) on M. Finally, some analysis concerning the stability of these
geodesics on M is carried out.Comment: Presented at MaxEnt 2006, the 26th International Workshop on Bayesian
Inference and Maximum Entropy Methods (July 8-13, 2006, Paris, France). This
paper is slightly updated from the published version. This paper consists of
9 pages with 1 figure. Keywords: Inductive inference, information geometry,
statistical manifolds, relative entrop
Iterative Time-Varying Filter Algorithm Based on Discrete Linear Chirp Transform
Denoising of broadband non--stationary signals is a challenging problem in
communication systems. In this paper, we introduce a time-varying filter
algorithm based on the discrete linear chirp transform (DLCT), which provides
local signal decomposition in terms of linear chirps. The method relies on the
ability of the DLCT for providing a sparse representation to a wide class of
broadband signals. The performance of the proposed algorithm is compared with
the discrete fractional Fourier transform (DFrFT) filtering algorithm.
Simulation results show that the DLCT algorithm provides better performance
than the DFrFT algorithm and consequently achieves high quality filtering.Comment: 6 pages, conference pape
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