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Entropy, Volume 24, Issue 6

June 2022 - 104 articles

Cover Story: Voronoi diagrams generated by a random set of points were studied. Dividing the edges of Voronoi cells into random parts yielded positional ordering of Voronoi cells, reminiscent of the formation of lamellae and spherulites in semicrystalline polymers. Shannon entropy of the patterns showed a tendency to attain values typical for random patterns. Shannon entropy and the continuous measure of symmetry demonstrated asymptotic behavior, while approaching the saturation values with the increase in the number of the iteration steps. Shannon entropy is not an unambiguous measure of order in the 2D patterns; more symmetrical patterns may demonstrate higher values of Shannon entropy. View this paper
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Articles (104)

  • Article
  • Open Access
7 Citations
3,552 Views
16 Pages

17 June 2022

Belavkin–Staszewski relative entropy can naturally characterize the effects of the possible noncommutativity of quantum states. In this paper, two new conditional entropy terms and four new mutual information terms are first defined by replacin...

  • Article
  • Open Access
5 Citations
2,670 Views
18 Pages

17 June 2022

Strong viscous interaction and multiple flow regimes exist when vehicles fly at high altitude and high Mach number conditions. The Navier–Stokes(NS) solver is no longer applicable in the above situation. Instead, the direct simulation Monte Car...

  • Feature Paper
  • Article
  • Open Access
3 Citations
2,308 Views
20 Pages

Quantum Models à la Gabor for the Space-Time Metric

  • Gilles Cohen-Tannoudji,
  • Jean-Pierre Gazeau,
  • Célestin Habonimana and
  • Juma Shabani

16 June 2022

As an extension of Gabor signal processing, the covariant Weyl-Heisenberg integral quantization is implemented to transform functions on the eight-dimensional phase space x,k into Hilbertian operators. The x=xμ values are space-time variables, and...

  • Article
  • Open Access
9 Citations
3,330 Views
24 Pages

16 June 2022

Spiking neural P systems (SN P systems for short) realize the high abstraction and simulation of the working mechanism of the human brain, and adopts spikes for information encoding and processing, which are regarded as one of the third-generation ne...

  • Article
  • Open Access
5 Citations
2,528 Views
16 Pages

15 June 2022

In this paper, we present stochastic synchronous cellular automaton defined on a square lattice. The automaton rules are based on the SEIR (susceptible → exposed → infected → recovered) model with probabilistic parameters gathered from...

  • Article
  • Open Access
9 Citations
3,255 Views
18 Pages

Colored Texture Analysis Fuzzy Entropy Methods with a Dermoscopic Application

  • Mirvana Hilal,
  • Andreia S. Gaudêncio,
  • Pedro G. Vaz,
  • João Cardoso and
  • Anne Humeau-Heurtier

15 June 2022

Texture analysis is a subject of intensive focus in research due to its significant role in the field of image processing. However, few studies focus on colored texture analysis and even fewer use information theory concepts. Entropy measures have be...

  • Article
  • Open Access
1 Citations
2,558 Views
17 Pages

15 June 2022

The endwall effect has a great impact on the aerodynamic performance of compressor blades. Based on three conventional near-endwall blade modeling methods of bowed blade, endbend blade and leading-edge strake blade (LESB), two combined optimization d...

  • Article
  • Open Access
5 Citations
3,022 Views
15 Pages

Supernovae and the Arrow of Time

  • Snezhana I. Abarzhi,
  • Desmon L. Hill,
  • Annie Naveh,
  • Kurt C. Williams and
  • Cameron E. Wright

14 June 2022

Supernovae are explosions of stars and are a central problem in astrophysics. Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM) instabilities develop during the star’s explosion and lead to intense interfacial RT/RM mixing of the star...

  • Article
  • Open Access
10 Citations
2,625 Views
24 Pages

14 June 2022

The main concern of this paper is finite-time stability (FTS) for uncertain discrete-time stochastic nonlinear systems (DSNSs) with time-varying delay (TVD) and multiplicative noise. First, a Lyapunov–Krasovskii function (LKF) is constructed, u...

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Entropy - ISSN 1099-4300