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Symmetry, Volume 11, Issue 12

December 2019 - 102 articles

Cover Story: A certain kind of small deviations from Lorentz symmetry can produce transition frequency shifts that depend on the direction of the orbital velocity of the Earth relative to a vector background Lorentz-violating field. As the Earth moves around the Sun, this can cause an annual variation of the atomic transition frequency. View this paper.
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Articles (102)

  • Article
  • Open Access
6 Citations
4,277 Views
27 Pages

Detection of Communities within the Multibody System Dynamics Network and Analysis of Their Relations

  • Daniel García-Vallejo,
  • Alfredo Alcayde,
  • Javier López-Martínez and
  • Francisco G. Montoya

17 December 2019

Multibody system dynamics is already a well developed branch of theoretical, computational and applied mechanics. Thousands of documents can be found in any of the well-known scientific databases. In this work it is demonstrated that multibody system...

  • Article
  • Open Access
9 Citations
3,359 Views
12 Pages

Optimal Parameter Selection in Robotic Belt Polishing for Aeroengine Blade Based on GRA-RSM Method

  • Jian Guo,
  • Yaoyao Shi,
  • Zhen Chen,
  • Tao Yu,
  • Pan Zhao and
  • Bijan Shirinzadeh

17 December 2019

Due to its flexibility and versatility, robotic belt polishing is one of the most effective processing methods to improve the surface quality of aeroengine blades. Since belt polishing of blades is a material removal process aimed at reducing surface...

  • Article
  • Open Access
47 Citations
6,244 Views
29 Pages

A New Model for Stock Management in Order to Rationalize Costs: ABC-FUCOM-Interval Rough CoCoSo Model

  • Živko Erceg,
  • Vitomir Starčević,
  • Dragan Pamučar,
  • Goran Mitrović,
  • Željko Stević and
  • Srđan Žikić

17 December 2019

Cost rationalization has become imperative in every economic system in order to create adequate foundations for its efficient and sustainable management. Competitiveness in the global market is extremely high and it is challenging to manage business...

  • Feature Paper
  • Review
  • Open Access
5 Citations
3,235 Views
14 Pages

17 December 2019

We review a possible origin of cosmological inflation from higher ( D ) spacetime dimensions in the context of modified gravity theory. It is demonstrated that it requires a spontaneous warped compactification of higher ( D ) spacetim...

  • Article
  • Open Access
17 Citations
3,523 Views
17 Pages

Bounds for the Generalized Distance Eigenvalues of a Graph

  • Abdollah Alhevaz,
  • Maryam Baghipur,
  • Hilal Ahmad Ganie and
  • Yilun Shang

17 December 2019

Let G be a simple undirected graph containing n vertices. Assume G is connected. Let D ( G ) be the distance matrix, D L ( G ) be the distance Laplacian, D Q ( G ) be the distance signless Laplacian, and T r ( G )...

  • Article
  • Open Access
3 Citations
2,769 Views
7 Pages

16 December 2019

By using the analysis methods and the properties of Chebyshev polynomials of the first kind, this paper studies certain symmetry sums of the Legendre polynomials, and gives some new and interesting identities and inequalities for them, thus improving...

  • Article
  • Open Access
5 Citations
4,296 Views
12 Pages

16 December 2019

In this paper, non-Fourier heat conduction in a cylinder with non-homogeneous boundary conditions is analytically studied. A superposition approach combining with the solution structure theorems is used to get a solution for equation of hyperbolic he...

  • Feature Paper
  • Article
  • Open Access
25 Citations
3,707 Views
20 Pages

16 December 2019

A particular pantographic sheet, modeled as a two-dimensional elastic continuum consisting of an orthogonal lattice of continuously distributed fibers with a cycloidal texture, is introduced and investigated. These fibers conceived as embedded beams...

  • Hypothesis
  • Open Access
12 Citations
4,156 Views
15 Pages

16 December 2019

This study is designed to provide strategic inspiration in multinational institutions’ investment behavior in Cambodia. Most factors affecting the investment decisions of South Korean and Chinese institutional investors in Cambodia are investig...

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Symmetry - ISSN 2073-8994