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Symmetry, Volume 14, Issue 6

June 2022 - 206 articles

Cover Story: Making something new out of old cherished things.
The picture is a quilt, made by my daughter some years ago, using scraps of materials from an old collection of fine dresses that my wife no longer wore.
“A Consistent Theory of Tachyons” is a work that re-examines the old, cherished theories of relativity and quantum mechanics to find a new story that seems to work in explaining some modern puzzles in physics: neutrinos, dark energy, and dark matter. View this paper
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Articles (206)

  • Article
  • Open Access
1 Citations
2,399 Views
14 Pages

20 June 2022

Free-space continuous-variable quantum key distribution based on atmospheric laser communications is expected to play an important role in the global continuous-variable quantum key distribution network. The practical homodyne detector model is appli...

  • Article
  • Open Access
3 Citations
2,617 Views
12 Pages

20 June 2022

This study presents a framework whereby cancer chemotherapy could be improved through collaboration between mathematicians and experimentalists. Following on from our recently published model, we use A20 murine leukemic cells transfected with monomer...

  • Article
  • Open Access
3 Citations
2,637 Views
14 Pages

Optimization for an Indoor 6G Simultaneous Wireless Information and Power Transfer System

  • Chien-Ching Chiu,
  • Wei Chien,
  • Po-Hsiang Chen,
  • Yu-Ting Cheng,
  • Hao Jiang and
  • En-Lin Chen

19 June 2022

Antenna beamforming for Simultaneous Wireless Information and Power Transfer (SWIPT) and Wireless Power Transfer (WPT) in an indoor 6G communication system is presented in this paper. The objective function is to maximize the total harvesting power f...

  • Article
  • Open Access
2 Citations
1,969 Views
17 Pages

19 June 2022

An important research aspect of Spectrum-Based Fault Localization (SBFL) is the influence factors of the effectiveness of suspiciousness formulas from the perspective of symmetry. Coincidental correctness is one of the most important factors impactin...

  • Article
  • Open Access
20 Citations
2,920 Views
16 Pages

On the Topological Indices of Commuting Graphs for Finite Non-Abelian Groups

  • Fawad Ali,
  • Bilal A. Rather,
  • Nahid Fatima,
  • Muhammad Sarfraz,
  • Asad Ullah,
  • Khalid Abdulkhaliq M. Alharbi and
  • Rahim Dad

19 June 2022

A topological index is a number generated from a molecular structure (i.e., a graph) that indicates the essential structural properties of the proposed molecule. Indeed, it is an algebraic quantity connected with the chemical structure that correlate...

  • Article
  • Open Access
3 Citations
2,054 Views
31 Pages

19 June 2022

One of the most important properties of stochastic nonlinear processes, including the turbulence of the hydrodynamic motion of continuous media, is distant spatial correlations. To describe them, an approach was proposed by Shlesinger and colleagues...

  • Feature Paper
  • Article
  • Open Access
4 Citations
7,323 Views
12 Pages

A Scent of Peppermint—A Microwave Spectroscopy Analysis on the Composition of Peppermint Oil

  • Anna Krin,
  • María Mar Quesada Moreno,
  • Cristóbal Pérez and
  • Melanie Schnell

18 June 2022

Essential oils have a vast number of applications in different areas of our daily life. Detailed chiral analysis and structural characterization of their constituents remains an important subject in analytical chemistry. Here, we report on a broadban...

  • Article
  • Open Access
5 Citations
2,565 Views
22 Pages

18 June 2022

In this paper, we study the event-triggered integral sliding mode optimal tracking problem of nonlinear systems with matched and unmatched disturbances. The goal is to design an adaptive dynamic programming-based sliding-mode controller, which stabil...

  • Article
  • Open Access
10 Citations
3,024 Views
29 Pages

Numerical Model Validation for Detection of Surface Displacements over Twin Tunnels from Metro Line 1 in the Historical Area of Seville (Spain)

  • Maziyar Bahri,
  • Emilio J. Mascort-Albea,
  • Rocío Romero-Hernández,
  • Mohammadreza Koopialipoor,
  • Cristina Soriano-Cuesta and
  • Antonio Jaramillo-Morilla

18 June 2022

In order to solve connectivity problems in metropolitan areas, the development of underground metro lines constitutes an unquestionable requirement. However, the construction work thereof encounters unfavourable circumstances when surface excavations...

  • Article
  • Open Access
1 Citations
2,093 Views
15 Pages

18 June 2022

The internal structure of steel cylinder concrete pipe in large buildings is complex. Traditionally, the safety monitoring method is unable to accurately monitor the situation of every stress point in the structure. Therefore, the wireless sensor net...

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Symmetry - ISSN 2073-8994Creative Common CC BY license