Results 71 to 80 of about 344,577 (190)

Entropy Maximization and Instability of Uniformly Magnetized Plasma

open access: yes, 2012
A regime where a uniformly magnetized plasma could be unstable to a spatial perturbation in the magnetic field is explored. In this regime, a uniformly magnetized state does not maximize the entropy.
Bindoni   +21 more
core   +1 more source

Generalized graph entropies

open access: yesComplexity, 2011
AbstractThis article deals with generalized entropies for graphs. These entropies result from applying information measures to a graph using various schemes for defining probability distributions over the elements (e.g., vertices) of the graph. We introduce a new class of generalized measures, develop their properties, compute the measures for selected
Matthias Dehmer, Abbe Mowshowitz
openaire   +1 more source

Entropy Generation Methodology for Defect Analysis of Electronic and Mechanical Components—A Review

open access: yesEntropy, 2020
Understanding the defect characterization of electronic and mechanical components is a crucial step in diagnosing component lifetime. Technologies for determining reliability, such as thermal modeling, cohesion modeling, statistical distribution, and ...
Miao Cai   +7 more
doaj   +1 more source

Takeuchi's Information Criteria as a form of Regularization

open access: yes, 2018
Takeuchi's Information Criteria (TIC) is a linearization of maximum likelihood estimator bias which shrinks the model parameters towards the maximum entropy distribution, even when the model is mis-specified.
Dixon, Matthew, Ward, Tyler
core   +1 more source

A study of the local entropy generation rate in a porous media burner

open access: yesArchives of Mechanics, 2020
In this paper, the work and performance of the premixed methane-air porous axisymmetrical burner have firstly been simulated numerically using the CFD tools.
I. Mohammadi, J.A. Esfahani, K.C. Kim
doaj   +1 more source

A Statistical Mechanical Load Balancer for the Web

open access: yes, 2005
The maximum entropy principle from statistical mechanics states that a closed system attains an equilibrium distribution that maximizes its entropy. We first show that for graphs with fixed number of edges one can define a stochastic edge dynamic that ...
C. Avin   +8 more
core   +1 more source

Generalized black hole entropy is von Neumann entropy

open access: yesPhysical Review D
It has been argued that, while the individual terms in the generalized entropy, Sgen=A/4GN+Sext, are ill-defined in the semiclassical limit, their sum is well-defined if one takes into account perturbative quantum gravitational effects. The first term diverges as GN→0, and the second diverges due to the infinite entanglement across the horizon which is
Jonah Kudler-Flam   +2 more
openaire   +2 more sources

Two-body recombination in a quantum mechanical lattice gas: Entropy generation and probing of short-range magnetic correlations

open access: yes, 2010
We study entropy generation in a one-dimensional (1D) model of bosons in an optical lattice experiencing two-particle losses. Such heating is a major impediment to observing exotic low temperature states, and "simulating" condensed matter systems ...
E. Sarajlic   +2 more
core   +1 more source

Generalized divergences from generalized entropies

open access: yesPhysica A: Statistical Mechanics and its Applications, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Riveaud, Leonardo   +3 more
openaire   +4 more sources

A review of entropy generation in microchannels

open access: yesAdvances in Mechanical Engineering, 2015
In this study, a critical review of thermodynamic optimum of microchannels based on entropy generation analysis is presented. Using entropy generation analysis as evaluation parameter of microchannels has been reported by many studies in the literature ...
Mohamed M Awad
doaj   +1 more source

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