Results 21 to 30 of about 314,940 (287)
Texture analysis using Renyi's generalized entropies [PDF]
Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429), 2004 In this paper, we propose a texture analysis method based on Renyi's generalized entropies. The method aims at identifying texels in regular textures by searching for the smallest window through which the minimum number of different visual patterns is observed when moving the window over a given texture.
Simona E. Grigorescu, J. M. F. Petkov
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Frontiers in Energy Research, 2023 Centrifugal pumps are frequently utilized in general machinery, but they have issues with low efficiency, unstable operation, and high-power consumption in actual engineering, making performance improvements necessary.
Handong Qi +9 more
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The Exergy Losses Analysis in Adiabatic Combustion Systems including the Exhaust Gas Exergy
Entropy, 2022 The entropy generation analysis of adiabatic combustion systems was performed to quantify the exergy losses which are mainly the exergy destroyed during combustion inside the chamber and in the exhaust gases. The purpose of the present work was therefore:
Senda Agrebi +2 more
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General multifractal analysis of local entropies [PDF]
Fundamenta Mathematicae, 2000 The multifractal analysis of a dynamical system measures local characteristics like local Hausdorff dimension, local entropies, and Lyapunov exponents. Here the authors give an extensive treatment for the local entropies introduced by \textit{M. Brin} and \textit{S. Katok} [Geometric dynamics, Lect. Notes Math. 1007, 30-38 (1983; Zbl 0533.58020)].
Takens, Floris, Verbitski, Evgeny
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Energies, 2021 A second law analysis in combustion systems is performed along with an exergy loss study by quantifying the entropy generation sources using, for the first time, three different approaches: a classical-thermodynamics-based approach, a novel turbulence ...
Senda Agrebi +5 more
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Entropy generation analysisfor the design optimizationof solid oxide fuel cells [PDF]
, 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, Verda, Vittorio
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Multivariate Generalized Multiscale Entropy Analysis [PDF]
Entropy, 2016 Multiscale entropy (MSE) was introduced in the 2000s to quantify systems’ complexity. MSE relies on (i) a coarse-graining procedure to derive a set of time series representing the system dynamics on different time scales; (ii) the computation of the sample entropy for each coarse-grained time series.
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Local entropy generation analysis [PDF]
, 1991 Second law analysis techniques have been widely used to evaluate the sources of irreversibility in components and systems of components but the evaluation of local sources of irreversibility in thermal processes has received little attention. While analytical procedures for evaluating local entropy generation have been developed, applications have been
Drost, M. K., White, M. D.
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Comprehensive Thermodynamic Analysis of He–Xe in Microchannels with Different Structures
Energies, 2023 He–Xe, with a 40 g/mol molar mass, is considered one of the most promising working media in a space-confined Brayton cycle. The thermodynamic performance of He–Xe in different configuration channels is investigated in this paper to provide a basis for ...
Zijian Sun +3 more
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Entropy, 2023 In this work, a numerical analysis of three different flat plate solar collectors was conducted using their entropy generation rates. Specifically, the Computational Fluid Dynamics (CFD) technique was used to compare the detailed performance of ...
J. J. Ramírez-Minguela +6 more
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