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Symmetry, Volume 9, Issue 8

August 2017 - 41 articles

Cover Story: The perception of symmetry has always been an intriguing subject for psychologists. We investigated what configurations people have in mind when they think of “symmetry”. Bilateral symmetry is modelled on a mirror reflection. Based on what psychologists have discovered on how people perceive and think of reflections, we hypothesized (and confirmed) that the configurations that people perceive and that aptly mentally represent “good examples” of symmetry reveal not only identicalness (e.g. A) but also opposition (e.g. A’). View this paper
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Articles (41)

  • Article
  • Open Access
3 Citations
5,378 Views
15 Pages

BATCP: Bandwidth-Aggregation Transmission Control Protocol

  • Ismael Amezcua Valdovinos,
  • Jesus Arturo Perez Diaz,
  • Luis Javier Garcia Villalba and
  • Tai-hoon Kim

21 August 2017

The Transmission Control Protocol (TCP) is the most used transport protocol to exchange reliable data between network devices. A considerable number of extensions have been implemented into TCP to achieve better performance. In this paper, we will pr...

  • Article
  • Open Access
5 Citations
4,882 Views
29 Pages

20 August 2017

Abstract: Until the last few decades, maintenance has not been considered of special importance by organisations. Thus, the number of studies that assess maintenance performance in a country is still very small, despite the relevance this area has to...

  • Article
  • Open Access
17 Citations
5,188 Views
18 Pages

18 August 2017

Schrödinger equations with non-Hermitian, but PT -symmetric quantum potentials V ( x ) found, recently, a new field of applicability in classical optics. The potential acquired there a new physical role of an “anomalous” refraction index...

  • Article
  • Open Access
1 Citations
3,794 Views
18 Pages

18 August 2017

In this work, by Zadeh’s extension principle, we extend representable uninorms and their fuzzy implications (coimplications) to type-2 fuzzy sets. Emphatically, we investigate in which algebras of fuzzy truth values the extended operations are type-2...

  • Article
  • Open Access
270 Citations
37,156 Views
13 Pages

18 August 2017

Blockchain has drawn attention as the next-generation financial technology due to its security that suits the informatization era. In particular, it provides security through the authentication of peers that share virtual cash, encryption, and the ge...

  • Article
  • Open Access
3 Citations
5,121 Views
15 Pages

18 August 2017

Various distributed optimization methods have been developed for consensus optimization problems in multi-agent networks. Most of these methods only use gradient or subgradient information of the objective functions, which suffer from slow convergenc...

  • Article
  • Open Access
47 Citations
7,330 Views
13 Pages

17 August 2017

Failure mode and effects analysis (FMEA) is a popular and useful approach applied to examine potential failures in different products, designs, processes, and services. As a vital index, the risk priority number (RPN) can determine the risk prioritie...

  • Article
  • Open Access
19 Citations
5,950 Views
18 Pages

17 August 2017

Crowdsourcing is an appealing and economic solution to software application testing because of its ability to reach a large international audience. Meanwhile, crowdsourced testing could have brought a lot of bug reports. Thus, in crowdsourced softwar...

  • Article
  • Open Access
8 Citations
4,364 Views
15 Pages

15 August 2017

A multi-objective bi-matrix game model based on fuzzy goals is established in this paper. It is shown that the equilibrium solution of such a game model problem can be translated into the optimal solution of a multi-objective, non-linear programming...

  • Article
  • Open Access
10 Citations
3,990 Views
25 Pages

15 August 2017

In this paper, we develop a new linguistic aggregation operator based on the cloud model for solving linguistic group decision-making problem. First, an improved generating cloud method is proposed so as to transform linguistic variables into clouds,...

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Symmetry - ISSN 2073-8994