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Symmetry, Volume 14, Issue 8

August 2022 - 257 articles

Cover Story: N-heterocyclic carbenes (NHCs) represent an attractive class of ligands for both main-group and transition metals thanks to the easy modulation of their steric and electronic properties. The possibility of introducing chirality into an NHC framework has paved the way to the design of chiral NHC ligands and contributed to enhancing their potential for applications in different chemistry fields. This paper provides an overview on the use of C2-symmetric NHCs as ancillary ligands for transition metal complexes and their most relevant applications in asymmetric catalysis. View this paper
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Articles (257)

  • Article
  • Open Access
3 Citations
1,868 Views
19 Pages

18 August 2022

In this paper, we present the existence and uniqueness of strong probabilistic solutions for nonlinear parabolic Stochastic Partial Differential Equations (SPDEs) with nonlinear Robin boundary conditions in a domain with holes. On the boundary of the...

  • Article
  • Open Access
1 Citations
2,350 Views
11 Pages

A Novel Optical Path for Enhancing the Performance of High-Power Semiconductor Laser in Packaging

  • Chuanwu Liao,
  • Xiaochuan Xia,
  • Xiaofei Yang,
  • Liang Zhang and
  • Guotong Du

18 August 2022

High-power semiconductor laser has more significant applications in long distance and high-reliability optical communication systems. It is noticed that the packaging plays an important role in the performance of high-power semiconductor laser, inclu...

  • Article
  • Open Access
11 Citations
3,515 Views
23 Pages

18 August 2022

In this study, a high-order compact finite difference method is used to solve boundary value problems with Robin boundary conditions. The norm is to use a first-order finite difference scheme to approximate Neumann and Robin boundary conditions, but...

  • Article
  • Open Access
1 Citations
1,576 Views
12 Pages

S-Score Table-Based Parameter-Reduction Approach for Fuzzy Soft Sets

  • Hongwu Qin,
  • Chengjun Gu,
  • Xiuqin Ma,
  • Weiyi Wei and
  • Yibo Wang

17 August 2022

A fuzzy soft set is a mathematical tool used to deal with vagueness and uncertainty. Parameter reduction is an important issue when applying a fuzzy soft set to handle decision making. However, existing methods neglect newly added parameters and have...

  • Article
  • Open Access
3 Citations
2,212 Views
28 Pages

17 August 2022

For the coupling problem of longitudinal control and lateral control of vehicles, a two-dimensional (2-D) car-following control strategy for an electric vehicle is proposed in this paper. First, a 2-D car-following model for longitudinal following an...

  • Article
  • Open Access
11 Citations
1,819 Views
17 Pages

17 August 2022

Current research is focused on the utilization of a numerical solution of Casson cobalt ferrite nanofluid flow by taking two forms of base fluid. This investigation includes the gradual influence of nonlinear thermal radiation on the improvement of h...

  • Feature Paper
  • Review
  • Open Access
4 Citations
4,975 Views
35 Pages

17 August 2022

In this review, we trace the evolution of the quantum spin-wave theory treating non-collinear spin configurations. Non-collinear spin configurations are consequences of the frustration created by competing interactions. They include simple chiral mag...

  • Feature Paper
  • Article
  • Open Access
2 Citations
3,542 Views
20 Pages

17 August 2022

The introduction and ever-growing size of the transformer deep-learning architecture have had a tremendous impact not only in the field of natural language processing but also in other fields. The transformer-based language models have contributed to...

  • Article
  • Open Access
1,718 Views
14 Pages

(γ,a)-Nabla Reverse Hardy–Hilbert-Type Inequalities on Time Scales

  • Ahmed A. El-Deeb,
  • Dumitru Baleanu and
  • Jan Awrejcewicz

17 August 2022

In this article, using a (γ,a)-nabla conformable integral on time scales, we study several novel Hilbert-type dynamic inequalities via nabla time scales calculus. Our results generalize various inequalities on time scales, unifying and extendin...

  • Article
  • Open Access
2 Citations
2,457 Views
11 Pages

On the Classification of Polyhedral Links

  • Naohiro Wakayama and
  • Koya Shimokawa

17 August 2022

Knots and links are ubiquitous in chemical systems. Their structure can be responsible for a variety of physical and chemical properties, making them very important in materials development. In this article, we analyze the topological structures of i...

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Symmetry - ISSN 2073-8994