Results 1 to 10 of about 602 (107)

Multi-objective Informative Frequency Band Selection Based on Negentropy-induced Grey Wolf Optimizer for Fault Diagnosis of Rolling Element Bearings [PDF]

open access: yesSensors, 2020
Informative frequency band (IFB) selection is a challenging task in envelope analysis for the localized fault detection of rolling element bearings. In previous studies, it was often conducted with a single indicator, such as kurtosis, etc., to guide the
Yongqiang Liu, Xiaohui Gu, Zechao Liu
exaly   +4 more sources

The evolutionary mechanism of information negentropy spurred by emergencies [PDF]

open access: yesScientific Reports
In the context of social system resilience, the role of information negentropy—a measure of order and structural stability—remains underexplored during emergencies.
Yixin Liu, Yuexin Lan, Yixue Xia
doaj   +2 more sources

Invariance Properties of the Entropy Production, and the Entropic Pairing of Inertial Frames of Reference by Shear-Flow Systems [PDF]

open access: yesEntropy, 2021
This study examines the invariance properties of the thermodynamic entropy production in its global (integral), local (differential), bilinear, and macroscopic formulations, including dimensional scaling, invariance to fixed displacements, rotations or ...
Robert K. Niven
doaj   +2 more sources

Negentropy in Many-Body Quantum Systems

open access: yesEntropy, 2016
Negentropy (negative entropy) is the negative contribution to the total entropy of correlated many-body environments. Negentropy can play a role in transferring its related stored mobilizable energy to colliding nuclei that participate in spontaneous or ...
Antonio Maria Scarfone   +2 more
exaly   +3 more sources

Negentropy as a Measure to Evaluate the Resilience in Industrial Plants

open access: yesMathematics, 2023
Resilience is an essential quality of systems. This characteristic is based on the ability of a system to cope with disruptive events. To prevent decreases in system functionality and performance and to respond promptly to unexpected situations or shocks,

exaly   +3 more sources

Negentropy Spectrum Decomposition and Its Application in Compound Fault Diagnosis of Rolling Bearing

open access: yesEntropy, 2019
The rolling bearings often suffer from compound fault in practice. Compared with single fault, compound fault contains multiple fault features that are coupled together and make it difficult to detect and extract all fault features by traditional methods
Yonggang Xu, Kun Zhang, Jinxin Cao
exaly   +3 more sources

Energy from Negentropy of Non-Cahotic Systems

open access: yesEntropy, 2018
Negative contribution of entropy (negentropy) of a non-cahotic system, representing the potential of work, is a source of energy that can be transferred to an internal or inserted subsystem. In this case, the system loses order and its entropy increases.
Antonio Maria Scarfone   +2 more
exaly   +3 more sources

Negentropy-Based Sparsity-Promoting Reconstruction with Fast Iterative Solution from Noisy Measurements [PDF]

open access: yesSensors, 2020
Compressed sensing provides an elegant framework for recovering sparse signals from compressed measurements. This paper addresses the problem of sparse signal reconstruction from compressed measurements that is more robust to complex, especially non ...
Yingxin Zhao   +5 more
doaj   +2 more sources

Generalized Skew-Normal Negentropy and Its Application to Fish Condition Factor Time Series

open access: yesEntropy, 2017
The problem of measuring the disparity of a particular probability density function from a normal one has been addressed in several recent studies. The most used technique to deal with the problem has been exact expressions using information measures ...
Javier E Contreras-Reyes   +2 more
exaly   +3 more sources

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