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Entropy, Volume 17, Issue 12

December 2015 - 33 articles

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Articles (33)

  • Article
  • Open Access
5 Citations
4,641 Views
16 Pages

21 December 2015

In generalizing the special-relativistic one-component version of Eckart’s continuum thermodynamics to general-relativistic space-times with Riemannian or post-Riemannian geometry as presented by Schouten (Schouten, J.A. Ricci-Calculus, 1954) and Bla...

  • Article
  • Open Access
4 Citations
6,076 Views
13 Pages

A New Tight Upper Bound on the Entropy of Sums

  • Jihad Fahs and
  • Ibrahim Abou-Faycal

19 December 2015

We consider the independent sum of a given random variable with a Gaussian variable and an infinitely divisible one. We find a novel tight upper bound on the entropy of the sum which still holds when the variable possibly has an infinite second momen...

  • Article
  • Open Access
198 Citations
9,137 Views
13 Pages

18 December 2015

The fractional-order hyperchaotic Lorenz system is solved as a discrete map by applying the Adomian decomposition method (ADM). Lyapunov Characteristic Exponents (LCEs) of this system are calculated according to this deduced discrete map. Complexity...

  • Review
  • Open Access
29 Citations
8,465 Views
27 Pages

17 December 2015

As a native scheme to evaluate hydrodynamic force in the lattice Boltzmann method, the momentum exchange method has some excellent features, such as simplicity, accuracy, high efficiency and easy parallelization. Especially, it is independent of boun...

  • Article
  • Open Access
44 Citations
5,811 Views
11 Pages

17 December 2015

In this study, we have applied the modified exp(−Ω(ξ))-expansion function method to the (2 + 1)-dimensional Boussinesq water equation. We have obtained some new analytical solutions such as exponential function, complex function and hyperbolic functi...

  • Article
  • Open Access
86 Citations
8,021 Views
19 Pages

Pathological Brain Detection by a Novel Image Feature—Fractional Fourier Entropy

  • Shuihua Wang,
  • Yudong Zhang,
  • Xiaojun Yang,
  • Ping Sun,
  • Zhengchao Dong,
  • Aijun Liu and
  • Ti-Fei Yuan

17 December 2015

Aim: To detect pathological brain conditions early is a core procedure for patients so as to have enough time for treatment. Traditional manual detection is either cumbersome, or expensive, or time-consuming. We aim to offer a system that can automat...

  • Comment
  • Open Access
3,571 Views
2 Pages

17 December 2015

This comment by the author discusses paragraph 3.3. Adiabatic Phenomena—An Analogy of the published article [1]. The paragraph draws an incorrect analogy between Maxwellian gases such as found in the atmosphere, and non-Maxwellian gases embodied, for...

  • Article
  • Open Access
11 Citations
5,367 Views
11 Pages

Some New Properties for Degree-Based Graph Entropies

  • Guoxiang Lu,
  • Bingqing Li and
  • Lijia Wang

16 December 2015

The graph entropies inspired by Shannon’s entropy concept become the information-theoretic quantities for measuring the structural information of graphs and complex networks. In this paper, we continue studying some new properties of the graph entrop...

  • Article
  • Open Access
9 Citations
5,507 Views
12 Pages

16 December 2015

In this paper a simplified two-dimensional computational model for studying the entropy generation characteristics of thermoacoustic heat exchangers with plane fins is presented. The model integrates the equations of the standard linear thermoacousti...

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