Results 301 to 310 of about 1,285,086 (339)
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On preimage entropy, folding entropy and stable entropy
Ergodic Theory and Dynamical Systems, 2020For non-invertible dynamical systems, we investigate how ‘non-invertible’ a system is and how the ‘non-invertibility’ contributes to the entropy from different viewpoints. For a continuous map on a compact metric space, we propose a notion of pointwise metric preimage entropy for invariant measures.
Wu, Weisheng, Zhu, Yujun
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TOPOLOGICAL ENTROPY VERSUS GEODESIC ENTROPY
International Journal of Mathematics, 1994Using Yomdin's Theorem [8], we show that for a compact Riemannian manifold M, the geodesic entropy — defined as the exponential growth rate of the average number of geodesic segments between two points — is ≤ the topological entropy of the geodesic flow of M.
Paternain, Gabriel P., Paternain, Miguel
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Nonequilibrium entropy and entropy distributions
Physical Review B, 1990Glasses have nonzero zero-temperature entropies. Because they are out of equilibrium, the ``thermodynamic'' entropy, determined by heat flow, is not equal to the ``statistical'' entropy, which measures volumes in phase space. We discuss the relationship between the two kinds of entropy in nonequilibrium systems and show that the thermodynamic entropies
, Langer, , Sethna, , Grannan
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Best Practice & Research Clinical Anaesthesiology, 2006
The concept of entropy, originally derived from thermodynamics, has been successfully applied to EEG analysis. Various entropy algorithms have been used in clinical studies, but until now a commercially available monitor exists only for spectral entropy.
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The concept of entropy, originally derived from thermodynamics, has been successfully applied to EEG analysis. Various entropy algorithms have been used in clinical studies, but until now a commercially available monitor exists only for spectral entropy.
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SSRN Electronic Journal, 2001 The entropy principle yields, for a given set of moments, a density that involves the smallest amount of prior information. We first show how entropy densities may be constructed in a numerically efficient way as the minimization of a potential. Next, for the case where the first four moments are given, we characterize the skewness-kurtosis domain for ...
ROCKINGER, Michael, JONDEAU, Eric
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Entropy Landscaping of High‐Entropy Carbides
Advanced Materials, 2021AbstractThe entropy landscape of high‐entropy carbides can be used to understand and predict their structure, properties, and stability. Using first principles calculations, the individual and temperature‐dependent contributions of vibrational, electronic, and configurational entropies are analyzed, and compare them qualitatively to the enthalpies of ...
Mohammad Delower Hossain +11 more
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International Journal of Bifurcation and Chaos, 1995
In this paper we study the numerical determination of the different reduction entropies (or α-entropies) of dynamical systems from time series. This method is advocated as a more suitable way to investigate the different aspects of sensitive dependence on initial positions than the determination of Lyapunov exponents, especially in the case of “noisy”
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In this paper we study the numerical determination of the different reduction entropies (or α-entropies) of dynamical systems from time series. This method is advocated as a more suitable way to investigate the different aspects of sensitive dependence on initial positions than the determination of Lyapunov exponents, especially in the case of “noisy”
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2000
Es handelt sich um eine extensive Zustandsgrose eines Systems im thermodynamischen Gleichgewicht, die eine zentrale Grose der Thermodynamik darstellt. Als Zustandsgrose besitzt S * ein vollstandiges Differential. Die Definition der Entropie erfolgt uber den zweiten Hauptsatz der Thermodynamik.
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Es handelt sich um eine extensive Zustandsgrose eines Systems im thermodynamischen Gleichgewicht, die eine zentrale Grose der Thermodynamik darstellt. Als Zustandsgrose besitzt S * ein vollstandiges Differential. Die Definition der Entropie erfolgt uber den zweiten Hauptsatz der Thermodynamik.
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Entropy and Entropy Production
1973The limitations of a thermodynamic theory of a continuum by the atomic structure of matter are briefly discussed. They imply that any thermodynamic theory is of an approximate nature. Main emphasis is laid on the concept of a nonequilibrium entropy. It is shown that to an isothermal electrical network one can apply thermodynamic reasoning.
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High-entropy electrolytes for practical lithium metal batteries
Nature Energy, 2023Sang Cheol Kim, Pu Zhang, Yuelang Chen
exaly