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Entropy, Volume 14, Issue 8

2012 August - 13 articles

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Articles (13)

  • Article
  • Open Access
560 Citations
30,800 Views
25 Pages

Permutation Entropy and Its Main Biomedical and Econophysics Applications: A Review

  • Massimiliano Zanin,
  • Luciano Zunino,
  • Osvaldo A. Rosso and
  • David Papo

23 August 2012

Entropy is a powerful tool for the analysis of time series, as it allows describing the probability distributions of the possible state of a system, and therefore the information encoded in it. Nevertheless, important information may be codified also...

  • Article
  • Open Access
43 Citations
6,957 Views
28 Pages

23 August 2012

We develop the general reconstruction scheme in two scalar model. The quintom-like theory which may describe (different) non-singular Little Rip or de Sitter cosmology is reconstructed. The number of scalar phantom dark energy models (with Little Rip...

  • Article
  • Open Access
19 Citations
9,450 Views
14 Pages

Optimization of Two-Stage Peltier Modules: Structure and Exergetic Efficiency

  • Miguel Angel Olivares-Robles,
  • Federico Vazquez and
  • Cesar Ramirez-Lopez

21 August 2012

In this paper we undertake the theoretical analysis of a two-stage semiconductor thermoelectric module (TEM) which contains an arbitrary and different number of thermocouples, n1 and n2, in each stage (pyramid-styled TEM). The analysis is based on a...

  • Article
  • Open Access
174 Citations
19,432 Views
21 Pages

Potential and Evolution of Compressed Air Energy Storage: Energy and Exergy Analyses

  • Young-Min Kim,
  • Jang-Hee Lee,
  • Seok-Joon Kim and
  • Daniel Favrat

10 August 2012

Energy storage systems are increasingly gaining importance with regard to their role in achieving load levelling, especially for matching intermittent sources of renewable energy with customer demand, as well as for storing excess nuclear or thermal...

  • Article
  • Open Access
5 Citations
5,781 Views
9 Pages

An Integral Representation of the Relative Entropy

  • Miku Hirata,
  • Aya Nemoto and
  • Hiroaki Yoshida

8 August 2012

Recently the identity of de Bruijn type between the relative entropy and the relative Fisher information with the reference moving has been unveiled by Verdú via MMSE in estimation theory. In this paper, we shall give another proof of this identity i...

  • Article
  • Open Access
6 Citations
7,035 Views
23 Pages

Wavelet q-Fisher Information for Scaling Signal Analysis

  • Julio Ramírez-Pacheco,
  • Deni Torres-Román,
  • Jesús Argaez-Xool,
  • Luis Rizo-Dominguez,
  • Joel Trejo-Sanchez and
  • Francisco Manzano-Pinzón

8 August 2012

Abstract: This article first introduces the concept of wavelet q-Fisher information and then derives a closed-form expression of this quantifier for scaling signals of parameter α. It is shown that this information measure appropriately describes the...

  • Review
  • Open Access
8 Citations
8,359 Views
26 Pages

7 August 2012

Discovering the mechanism that controls the three-dimensional structures of proteins, which are closely related to their biological functions, remains a challenge in modern biological science, even for small proteins. From a thermodynamic viewpoint,...

  • Article
  • Open Access
2 Citations
6,034 Views
42 Pages

2 August 2012

The paradigm shift from an exclusive allocation of frequency bands, one for each system, to a shared use of frequencies comes along with the need of new concepts since interference will be an ubiquitous phenomenon. In this paper, we use the concept o...

  • Review
  • Open Access
17 Citations
24,071 Views
44 Pages

2 August 2012

In reviewing the literature pertaining to interfacial water, colloidal stability, and cell membrane function, we are led to propose that a cascade of events that begins with acute exogenous surfactant-induced interfacial water stress can explain the...

  • Article
  • Open Access
1 Citations
6,611 Views
26 Pages

27 July 2012

We derive a two-parameter family of generalized entropies, Spq, and means mpq. To this end, assume that we want to calculate an entropy and a mean for n non-negative real numbers {x1,,xn}. For comparison, we consider {m1,,mk} where mi = m for all i...

  • Article
  • Open Access
268 Citations
13,080 Views
14 Pages

Bearing Fault Diagnosis Based on Multiscale Permutation Entropy and Support Vector Machine

  • Shuen-De Wu,
  • Po-Hung Wu,
  • Chiu-Wen Wu,
  • Jian-Jiun Ding and
  • Chun-Chieh Wang

27 July 2012

Bearing fault diagnosis has attracted significant attention over the past few decades. It consists of two major parts: vibration signal feature extraction and condition classification for the extracted features. In this paper, multiscale permutation...

  • Article
  • Open Access
5 Citations
6,748 Views
11 Pages

25 July 2012

Graduation of data is of great importance in survival analysis. Smoothness and goodness of fit are two fundamental requirements in graduation. Based on the instinctive defining expression for entropy in terms of a probability distribution, two optimi...

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Entropy - ISSN 1099-4300