Results 21 to 30 of about 4,290,745 (350)

On A Generalized Entropy’s Formula [PDF]

open access: yesResults in Mathematics, 1990
The authors consider measures \(\mu\) being generalized Rademacher-Riesz products. Using the properties of such products and using Frostman's lemma, they find the Hausdorff dimension of a Borel subset of [0,1] of positive \(\mu\)-measure. Thereby they generalize \textit{H. G. Egglestone}'s result [Q. J. Math., Oxf. II. Ser.
Karanikas, C.   +3 more
openaire   +2 more sources

Streaming generalized cross entropy [PDF]

open access: yesSoft Computing, 2019
We propose a new method to combine adaptive processes with a class of entropy estimators for the case of streams of data. Starting from a first estimation obtained from a batch of initial data, model parameters are estimated at each step by combining the prior knowledge with the new observation (or a block of observations).
Mario Angelelli   +2 more
openaire   +3 more sources

Entropy generation of nanofluid flow in hexagonal microchannel

open access: yesJournal of Taibah University for Science, 2022
A new model for entropy generation number in hexagonal microchannel is developed going from the equation proposed by Bejan. The effect of Cu, CuO, Al2O3 and TiO2 mixed with pure water inside the microchannel is evaluated via entropy generation analysis ...
Mohamed Omri   +3 more
doaj   +1 more source

GENERALIZED ENTROPIES [PDF]

open access: yes, 2013
21 ...
Dupuis Frederic   +4 more
openaire   +2 more sources

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

Numerical Study on Entropy Generation in Thermal Convection with Differentially Discrete Heat Boundary Conditions

open access: yesEntropy, 2018
Entropy generation in thermal convection with differentially discrete heat boundary conditions at various Rayleigh numbers (Ra) are numerically investigated using the lattice Boltzmann method.
Zhengdao Wang, Yikun Wei, Yuehong Qian
doaj   +1 more source

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

Microgravity Spherical Droplet Evaporation and Entropy Effects

open access: yes, 2023
Recent efforts to understand low-temperature combustion (LTC) in internal combustion engines highlight the need to improve chemical kinetic mechanisms involved in the negative temperature coefficient (aka cool flame) regime.
Depcik, Christopher
core   +1 more source

Deformed Generalization of the Semiclassical Entropy [PDF]

open access: yesEntropy, 2008
We explicitly obtain here a novel expression for the semiclassical Wehrl’s entropy using deformed algebras built up with the q¡coherent states (see Arik and Coon [J.Math.Phys. 17, 524 (1976) and Quesne [J. Phys. A 35, 9213 (2002)]). The generalization is investigated with emphasis on i) its behavior as a function of temperature and ii) the results ...
Ferri, Gustavo L.   +5 more
openaire   +7 more sources

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