Results 21 to 30 of about 3,082,804 (300)

Generalized weighted permutation entropy

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2022
A novel heuristic approach is proposed here for time series data analysis, dubbed Generalized weighted permutation entropy, which amalgamates and generalizes beyond their original scope two well established data analysis methods: Permutation entropy and Weighted permutation entropy.
Darko Stosic   +3 more
openaire   +4 more sources

Generalized Entropies, Variance and Applications [PDF]

open access: yesEntropy, 2020
The generalized cumulative residual entropy is a recently defined dispersion measure. In this paper, we obtain some further results for such a measure, in relation to the generalized cumulative residual entropy and the variance of random lifetimes. We show that it has an intimate connection with the non-homogeneous Poisson process.
Abdolsaeed Toomaj, Antonio Di Crescenzo
openaire   +4 more sources

Methods to Calculate Entropy Generation. [PDF]

open access: yesEntropy (Basel)
Entropy generation, formulated by combining the first and second laws of thermodynamics with an appropriate thermodynamic potential, emerges as the difference between a phenomenological entropy function and a reversible entropy function.
Osara JA, Bryant MD.
europepmc   +2 more sources

The effects of transient radiant flow on pipe in contact with natural convection, for developed laminar flow of fluid with high Prandtl number, on enthalpy and entropy generation [PDF]

open access: yesChemical Review and Letters, 2019
Convection flow is passed in a pipe wall possessing radiation-convection, in order to find the best case with at least enthalpy and minimum entropy generation, through pipe wall having radiant flow.
reza kakulvand
doaj   +1 more source

Entropy generation analysisfor the design optimizationof solid oxide fuel cells [PDF]

open access: yes, 2011
Purpose - The aim of this paper is to investigate performance improvements of a monolithic solid oxide fuel cell geometry through an entropy generation analysis.
Sciacovelli, Adriano   +3 more
core   +1 more source

A Numerical Study on Entropy Generation in Two-Dimensional Rayleigh-Bénard Convection at Different Prandtl Number

open access: yesEntropy, 2017
Entropy generation in two-dimensional Rayleigh-Bénard convection at different Prandtl number (Pr) are investigated in the present paper by using the lattice Boltzmann Method.
Yikun Wei, Zhengdao Wang, Yuehong Qian
doaj   +1 more source

The Differential Entropy Generation Rate as a Unified Measure for Both the Stability and Efficiency of an Axial Compressor

open access: yesMachines, 2023
Stability and efficiency are the two most important performance indicators of highly loaded aviation axial compressors; however, they often cannot be achieved simultaneously.
Jingyuan Ma, Feng Lin
doaj   +1 more source

Zero Entropy Is Generic [PDF]

open access: yesEntropy, 2016
Dan Rudolph showed that for an amenable group, Γ, the generic measure-preserving action of Γ on a Lebesgue space has zero entropy. Here, this is extended to nonamenable groups. In fact, the proof shows that every action is a factor of a zero entropy action!
openaire   +4 more sources

Entropy Generation Rates in Two-Dimensional Rayleigh–Taylor Turbulence Mixing

open access: yesEntropy, 2018
Entropy generation rates in two-dimensional Rayleigh–Taylor (RT) turbulence mixing are investigated by numerical calculation. We mainly focus on the behavior of thermal entropy generation and viscous entropy generation of global quantities with ...
Xinyu Yang   +4 more
doaj   +1 more source

Generalized entropies and the similarity of texts [PDF]

open access: yesJournal of Statistical Mechanics: Theory and Experiment, 2017
Abstract We show how generalized Gibbs–Shannon entropies can provide new insights on the statistical properties of texts. The universal distribution of word frequencies (Zipf’s law) implies that the generalized entropies, computed at the word level, are dominated by words in a specific range of frequencies.
Altmann, E., Dias, L., Gerlach, M.
openaire   +4 more sources

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