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Symmetry, Volume 15, Issue 10

October 2023 - 157 articles

Cover Story: A theory of finite-deformation continuum mechanics has been formulated with fundamentals in generalized Finsler geometry coupled to anisotropic nonlinear elasticity. An internal state vector represents evolving microstructure; the dependence of the Finsler metric on the internal state affects how distances are measured in the material manifold and conservation laws for local equilibrium states. For anisotropic skin-tissue mechanics, the internal state is associated with collagen fiber rearrangements and breakages. Solutions to boundary value problems for tensile extension with tearing in different directions agree with experimental data and microscopic observations, providing physical and geometric insight into the effects of microstructures. View this paper
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Articles (157)

  • Article
  • Open Access
2 Citations
1,589 Views
14 Pages

20 October 2023

In this article, we delve into the study of fuzzy triple controlled metric spaces, investigating their properties and presenting a range of illustrative examples. We emphasize the broader applicability of this concept in comparison to fuzzy rectangul...

  • Article
  • Open Access
9 Citations
2,775 Views
12 Pages

20 October 2023

This paper presents an initial proposal for the utilization of mediative fuzzy logic in control problems. Mediative fuzzy logic (MFL) was originally proposed with the idea of modeling situations in which there exists contradictory knowledge among sev...

  • Article
  • Open Access
2 Citations
2,069 Views
21 Pages

Ionospheric Global and Regional Electron Contents in Solar Cycles 23–25

  • Yury Yasyukevich,
  • Artem Padokhin,
  • Artem Vesnin,
  • Alexei Bykov,
  • Alexander Kiselev,
  • Alexander Ivanov and
  • Anna Yasyukevich

19 October 2023

The Earth’s ionosphere experiences forcing from above and below and varies in different periods. We analyzed the dynamics of the ionospheric global and regional electron contents (GEC and REC) in solar cycles 23/24 (SC23/SC24) and the first par...

  • Article
  • Open Access
3 Citations
2,193 Views
21 Pages

19 October 2023

In this research, we employ a dual-approach that combines the Laplace residual power series method and the novel iteration method in conjunction with the Caputo operator. Our primary objective is to address the solution of two distinct, yet intricate...

  • Article
  • Open Access
5 Citations
3,005 Views
19 Pages

19 October 2023

In recent years, the incidence rate of lumbar diseases has been progressively increasing. The conventional lumbar fusion cages used in existing lumbar interbody fusion surgery are not able to take into account the multiple characteristics of cushioni...

  • Article
  • Open Access
8 Citations
3,092 Views
22 Pages

19 October 2023

As the efficiency of advanced aero engines improves, the operational speed of their rotors increases. This heightened operational speed makes the rotor dynamics highly sensitive to changes in the rotor’s mass asymmetry state, or unbalance state...

  • Feature Paper
  • Article
  • Open Access
3 Citations
1,861 Views
17 Pages

19 October 2023

We have studied a class of (1+1)-dimensional equations that models phenomena with heterogeneous diffusion, advection, and reaction. We have analyzed these fourth-order partial differential equations within the framework of group methods. In this clas...

  • Article
  • Open Access
2 Citations
1,356 Views
13 Pages

Some Fractional Integral Inequalities by Way of Raina Fractional Integrals

  • Miguel Vivas-Cortez,
  • Asia Latif and
  • Rashida Hussain

19 October 2023

In this research, some novel Hermite–Hadamard–Fejér-type inequalities using Raina fractional integrals for the class of ϑ-convex functions are obtained. These inequalities are more comprehensive and inclusive than the corr...

  • Article
  • Open Access
1 Citations
2,088 Views
25 Pages

Cross-Version Software Defect Prediction Considering Concept Drift and Chronological Splitting

  • Md Alamgir Kabir,
  • Atiq Ur Rehman,
  • M. M. Manjurul Islam,
  • Nazakat Ali and
  • Marcia L. Baptista

18 October 2023

Concept drift (CD) refers to a phenomenon where the data distribution within datasets changes over time, and this can have adverse effects on the performance of prediction models in software engineering (SE), including those used for tasks like cost...

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Symmetry - ISSN 2073-8994