Results 21 to 30 of about 25,153,568 (292)
An Analysis of The Entropy Generation in a Square Enclosure [PDF]
Entropy, 2003 The entropy generation during transient laminar natural convection in a square enclosure is numerically investigated. Two different cases are considered. The enclosure is heated either completely or partially from the left side wall and cooled from the opposite side wall. The bottom and the top of the enclosure are assumed as insulated.
ALTAÇ, ZEKERİYA +2 more
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Entropy generation of nanofluid flow in hexagonal microchannel
Journal 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
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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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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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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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, 2022 Efficient and sustainable thermal management systems are crucial to ensure thermal stability and a long lifespan of supercapacitors. In this work, an entropy generation analysis based on an improved coupled model is implemented for the first time, with ...
Xu, Chenxuan +13 more
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Entropy, 2023 Entropy generation in peristaltic transport of hybrid nanofluid possessing temperature-dependent thermal conductivity through a two-dimensional vertical channel is studied in this paper.
Abdulwahed Muaybid A. Alrashdi
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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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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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