Skip to Content

Symmetry, Volume 12, Issue 7

2020 July - 141 articles

Cover Story: The ability to mentally rotate a body image to place it in a different position is lacking or reduced in people with defective interhemispheric communication. Therefore, a cooperation of both hemispheres, differently activated, is required to perform the mental rotation of body images, which is confirmed to be an asymmetric brain competence. View this paper.
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (141)

  • Article
  • Open Access
9 Citations
3,483 Views
11 Pages

21 July 2020

Coal is often coated by coal kaolinite in flotation, resulting in an increase in concentrate ash. The natural hydrophilicity of minerals is the key factor to determining its flotation behavior. The results of studies on the contact angle of non-coal...

  • Article
  • Open Access
2 Citations
3,209 Views
25 Pages

A Symmetric Banzhaf Cooperation Value for Games with a Proximity Relation among the Agents

  • Inés Gallego,
  • Julio R. Fernández,
  • Andrés Jiménez-Losada and
  • Manuel Ordóñez

20 July 2020

A cooperative game represents a situation in which a set of agents form coalitions in order to achieve a common good. To allocate the benefits of the result of this cooperation there exist several values such as the Shapley value or the Banzhaf value...

(This article belongs to the Special Issue Fuzzy Mathematics Applied to Science, Engineering and Sustainability Issues)
  • Article
  • Open Access
4 Citations
2,840 Views
12 Pages

20 July 2020

This paper is concerned with the nonexistence of global solutions to fractional in time nonlinear Schrödinger equations of the form i α ∂ t α ω ( t , z ) + a 1 ( t ) Δ ω ( t , z ) + i α ...

(This article belongs to the Special Issue Symmetry in Ordinary and Partial Differential Equations and Applications)
  • Feature Paper
  • Article
  • Open Access
28 Citations
3,494 Views
15 Pages

Advanced Algorithms and Common Solutions to Variational Inequalities

  • Hasanen A. Hammad,
  • Habib ur Rehman and
  • Manuel De la Sen

20 July 2020

The paper aims to present advanced algorithms arising out of adding the inertial technical and shrinking projection terms to ordinary parallel and cyclic hybrid inertial sub-gradient extra-gradient algorithms (for short, PCHISE). Via these algorithms...

(This article belongs to the Special Issue Iterative Numerical Functional Analysis with Applications)
  • Article
  • Open Access
5 Citations
4,490 Views
15 Pages

19 July 2020

As a result of transportation integration, the role of highway passenger transport hubs has changed dramatically; these nodes act as important links to construct a seamless regional comprehensive passenger transport system which reflects the coordina...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
123 Citations
6,563 Views
11 Pages

Solution of Multi-Term Time-Fractional PDE Models Arising in Mathematical Biology and Physics by Local Meshless Method

  • Imtiaz Ahmad,
  • Hijaz Ahmad,
  • Phatiphat Thounthong,
  • Yu-Ming Chu and
  • Clemente Cesarano

19 July 2020

Fractional differential equations depict nature sufficiently in light of the symmetry properties which describe biological and physical processes. This article is concerned with the numerical treatment of three-term time fractional-order multi-dimens...

(This article belongs to the Special Issue Ordinary and Partial Differential Equations: Theory and Applications)
  • Article
  • Open Access
2 Citations
3,636 Views
15 Pages

Unsupervised Hashing with Gradient Attention

  • Shaochen Jiang,
  • Liejun Wang,
  • Shuli Cheng,
  • Anyu Du and
  • Yongming Li

18 July 2020

The existing learning-based unsupervised hashing method usually uses a pre-trained network to extract features, and then uses the extracted feature vectors to construct a similarity matrix which guides the generation of hash codes through gradient de...

  • Review
  • Open Access
26 Citations
31,970 Views
17 Pages

Down Syndrome Face Recognition: A Review

  • Olalekan Agbolade,
  • Azree Nazri,
  • Razali Yaakob,
  • Abdul Azim Ghani and
  • Yoke Kqueen Cheah

17 July 2020

One of the most pertinent applications of image analysis is face recognition and one of the most common genetic disorders is Down syndrome (DS), which is caused by chromosome abnormalities in humans. It is currently a challenge in computer vision in...

  • Article
  • Open Access
2 Citations
5,934 Views
11 Pages

Lateralization of Auditory Processing of Silbo Gomero

  • Pamela Villar González,
  • Onur Güntürkün and
  • Sebastian Ocklenburg

17 July 2020

Left-hemispheric language dominance is a well-known characteristic of the human language system. However, it has been shown that leftward language lateralization decreases dramatically when people communicate using whistles. Whistled languages presen...

(This article belongs to the Special Issue Cognitive and Neurophysiological Models of Brain Asymmetry)
  • Review
  • Open Access
25 Citations
10,463 Views
30 Pages

17 July 2020

During the past two decades, the interest in new methodologies for the synthesis of chiral N-functionalized indoles has grown rapidly. The review illustrates efficient applications of organocatalytic and organometallic strategies for the construction...

(This article belongs to the Special Issue Chiral Auxiliaries and Chirogenesis II)
  • Article
  • Open Access
4 Citations
5,031 Views
26 Pages

17 July 2020

Pathfinding is the problem of finding the shortest path between a pair of nodes in a graph. In the context of uniform-cost undirected grid maps, heuristic search algorithms, such as A ★ and weighted A ★ ( W A ★ ), have been do...

  • Article
  • Open Access
1 Citations
3,146 Views
13 Pages

Theoretical Derivation and Optimization Verification of BER for Indoor SWIPT Environments

  • Wei Chien,
  • Tzong-Tyng Hsieh,
  • Chien-Ching Chiu,
  • Yu-Ting Cheng,
  • Yang-Han Lee and
  • Qiang Chen

17 July 2020

Symmetrical antenna array is useful for omni bearing beamforming adjustment with multiple receivers. Beam-forming techniques using evolution algorithms have been studied for multi-user resource allocation in simultaneous wireless information and powe...

(This article belongs to the Special Issue Selected Papers from IIKII 2020 Conferences II)
  • Article
  • Open Access
2 Citations
3,319 Views
12 Pages

An Accelerated Symmetric Nonnegative Matrix Factorization Algorithm Using Extrapolation

  • Peitao Wang,
  • Zhaoshui He,
  • Jun Lu,
  • Beihai Tan,
  • YuLei Bai,
  • Ji Tan,
  • Taiheng Liu and
  • Zhijie Lin

17 July 2020

Symmetric nonnegative matrix factorization (SNMF) approximates a symmetric nonnegative matrix by the product of a nonnegative low-rank matrix and its transpose. SNMF has been successfully used in many real-world applications such as clustering. In th...

(This article belongs to the Special Issue Advances in Symmetric Tensor Decomposition Methods)
  • Article
  • Open Access
1 Citations
2,615 Views
21 Pages

17 July 2020

This paper studies a heteroscedastic partially linear model based on ρ − -mixing random errors, stochastically dominated and with zero mean. Under some suitable conditions, the strong consistency and p -th ( p > 0 ) ...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
4 Citations
3,371 Views
19 Pages

17 July 2020

Attribute reduction is one of the challenging problems in rough set theory. To accomplish an efficient reduction algorithm, this paper analyzes the shortcomings of the traditional methods based on attribute significance, and suggests a novel reductio...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
13 Citations
4,364 Views
17 Pages

Theoretical Model of Radial Scattering Velocity of Fragments of the Reactive Core PELE Projectile

  • Liangliang Ding,
  • Jingyuan Zhou,
  • Xianwen Ran,
  • Wenhui Tang,
  • Xiaoguang Xue and
  • Yuli Zhao

17 July 2020

PELE projectile is a new type of armor-piercing warhead and has a more obvious fragmentation effect, which solves the problem of insufficient after-effects of conventional armor-piercing projectiles. Reactive material is a new type of energetic mater...

  • Review
  • Open Access
218 Citations
28,310 Views
37 Pages

17 July 2020

When the Internet and other interconnected networks are used in a health system, it is referred to as “e-Health.” In this paper, we examined research studies from 2017–2020 to explore the utilization of intelligent techniques in health and its evolut...

(This article belongs to the Special Issue Special issue on Symmetry and Asymmetry in IoT and CPS Security and Privacy)
  • Article
  • Open Access
2 Citations
3,190 Views
31 Pages

17 July 2020

Due to the stochastic characteristics of bio-inspired optimization algorithms, several executions are often required; then a suitable infrastructure must be available to run these algorithms. This paper reviews a virtualized distributed processing sc...

  • Article
  • Open Access
11 Citations
4,254 Views
15 Pages

A Strategic and Significant Method for the Optimal Placement of Phasor Measurement Unit for Power System Network

  • Maveeya Baba,
  • Nursyarizal B. M. Nor,
  • M. Aman.Sheikh,
  • Muhammad Irfan and
  • Mohammad Tahir

16 July 2020

Currently the new state of power system relies on a precise monitoring of electrical quantities such as voltage and current phasors. Occasionally, its operation gets disturbed because of the flicking in load and generation which may result in the int...

(This article belongs to the Special Issue Symmetry in Mechanical Engineering Ⅱ)
  • Article
  • Open Access
12 Citations
4,104 Views
16 Pages

Analysis of Heat and Mass Transfer for Second-Order Slip Flow on a Thin Needle Using a Two-Phase Nanofluid Model

  • Siti Nur Alwani Salleh,
  • Norfifah Bachok,
  • Fadzilah Md Ali and
  • Norihan Md Arifin

16 July 2020

The present paper concentrates on the second-order slip flow over a moving thin needle in a nanofluid. The combined effects of thermophoresis and Brownian motion are considered to describe the heat and mass transfer performance of nanofluid. The resu...

(This article belongs to the Special Issue Symmetry in Numerical Analysis and Numerical Methods)
  • Article
  • Open Access
1 Citations
3,982 Views
19 Pages

The Motion of a Point Vortex in Multiply-Connected Polygonal Domains

  • El Mostafa Kalmoun,
  • Mohamed M. S. Nasser and
  • Khalifa A. Hazaa

16 July 2020

We study the motion of a single point vortex in simply- and multiply-connected polygonal domains. In the case of multiply-connected domains, the polygonal obstacles can be viewed as the cross-sections of 3D polygonal cylinders. First, we utilize conf...

(This article belongs to the Special Issue Symmetry in Numerical Analysis and Numerical Methods)
  • Article
  • Open Access
2 Citations
3,131 Views
11 Pages

Anatomical Considerations and Study of the Fractal Dimension around the Posterior Superior Alveolar Artery

  • Yolanda Guerrero-Sánchez,
  • Francisco José Gómez García,
  • Manuel Fernández-Martínez,
  • Blanca Pallarés Martínez and
  • Pia López-Jornet

16 July 2020

The Posterior Superior Alveolar Artery (PSAA) provides vascular support to molars, gingiva, and maxillary sinus. A tear of the PSAA may cause profuse hemorrhages which may lead to complications at a surgical level. As such, it becomes crucial to anat...

(This article belongs to the Special Issue Advances in Nonlinear, Discrete, Continuous and Hamiltonian Systems)
  • Article
  • Open Access
8 Citations
4,059 Views
44 Pages

16 July 2020

Within the framework of differential geometry, we study binary operations in the open, unit ball of the Euclidean n-space R n , n ∈ N , and discover the properties that qualify these operations to the title addition despite the fac...

(This article belongs to the Special Issue Symmetry and Geometry in Physics)
  • Article
  • Open Access
7 Citations
3,255 Views
17 Pages

16 July 2020

In this paper, we present a comparative study between Sinc–Galerkin method and a modified version of the variational iteration method (VIM) to solve non-linear Sturm–Liouville eigenvalue problem. In the Sinc method, the problem under cons...

(This article belongs to the Special Issue Iterative Numerical Functional Analysis with Applications)
  • Feature Paper
  • Article
  • Open Access
10 Citations
3,121 Views
14 Pages

16 July 2020

Existing decision-making methods are mostly a simple aggregation of expert decision information when solving large group decision-making problems. In these methods, priority should be given to expert weight information; however, it is difficult to av...

  • Article
  • Open Access
8 Citations
5,599 Views
14 Pages

Computer-Aided Sketching: Incorporating the Locus to Improve the Three-Dimensional Geometric Design

  • José Ignacio Rojas-Sola,
  • David Hernández-Díaz,
  • Ricardo Villar-Ribera,
  • Vicente Hernández-Abad and
  • Francisco Hernández-Abad

16 July 2020

This article presents evidence of the convenience of implementing the geometric places of the plane into commercial computer-aided design (CAD) software as auxiliary tools in the computer-aided sketching process. Additionally, the research considers...

(This article belongs to the Special Issue Advances on Engineering Graphics: Improvements and New Proposals)
  • Article
  • Open Access
46 Citations
17,002 Views
19 Pages

15 July 2020

The massive increase in the number of vehicles has set a precedent in terms of congestion, being one of the important factors affecting the flow of traffic, but there are also effects on the world economy. The studies carried out so far try to highli...

(This article belongs to the Special Issue Symmetry and IoT Intelligence in the Post Pandemic Economy)
  • Article
  • Open Access
10 Citations
4,006 Views
10 Pages

15 July 2020

Bi1-xMgxFeO3 (BMFO, x = 0, 0.02, 0.04, 0.06 and 0.08) multiferroic films were directly synthesized on flexible stainless steel (FSS), save the bottom electrode process, by means of sol–gel spin-coating technology. The effects of different bendi...

(This article belongs to the Special Issue Optical and Electronic Characteristics of Semiconductor Materials and Devices)
  • Article
  • Open Access
7 Citations
5,347 Views
13 Pages

28 GHz Single-Chip Transmit RF Front-End MMIC for Multichannel 5G Wireless Communications

  • Evgeny Erofeev,
  • Vadim Arykov,
  • Michael Stepanenko,
  • Aleksei Voevodin,
  • Aleksei Kogai and
  • Vladimir Kurikalov

14 July 2020

Millimeter-wave wireless networks of the new fifth generation (5G) have become a primary focus in the development of the information and telecommunication industries. It is expected that 5G wireless networks will increase the data rates and reduce ne...

(This article belongs to the Special Issue Information Technologies and Electronics)
  • Feature Paper
  • Article
  • Open Access
20 Citations
4,535 Views
24 Pages

14 July 2020

Density peak clustering (DPC) is a density-based clustering method that has attracted much attention in the academic community. DPC works by first searching density peaks in the dataset, and then assigning each data point to the same cluster as its n...

(This article belongs to the Section D: Chemistry: Symmetry/Asymmetry)
  • Editorial
  • Open Access
2 Citations
2,161 Views
4 Pages

14 July 2020

This Special Issue consists of a total of 14 accepted submissions (including several invited feature articles) to the Special Issue of the MDPI’s journal, Symmetry on the general subject-area of “Integral Transformations, Operational Calc...

(This article belongs to the Special Issue Integral Transformations, Operational Calculus and Their Applications)
  • Article
  • Open Access
34 Citations
5,117 Views
27 Pages

14 July 2020

The paper considers the multi-criteria decision-making problem based on linguistic picture fuzzy information. Firstly, we propose the concept of linguistic picture fuzzy set(LPFS), where the positive-membership, the neutral-membership and the negativ...

(This article belongs to the Special Issue Fuzzy Mathematics Applied to Science, Engineering and Sustainability Issues)
  • Article
  • Open Access
17 Citations
4,215 Views
21 Pages

14 July 2020

The dual-motor coupling drive system (DCDS), which is widely used in electric vehicles, has attracted increasing attention due to its high transmission efficiency and economical fuel consumption. Current research has mainly focused on the control sch...

  • Article
  • Open Access
3 Citations
2,175 Views
7 Pages

13 July 2020

Working in the setting of Banach spaces, we give a simpler proof of a result concerning the Ulam stability of the composition of operators. Several applications are provided. Then, we give an example of a discrete semigroup with Ulam unstable members...

(This article belongs to the Special Issue Ulam's Type Stability and Symmetry)
  • Review
  • Open Access
15 Citations
7,425 Views
12 Pages

Asymmetric Cellulosic Membranes: Current and Future Aspects

  • Tuerxun Duolikun,
  • Nadiah Ghazali,
  • Bey Fen Leo,
  • Hwei Voon Lee,
  • Chin Wei Lai and
  • Mohd Rafie Bin Johan

13 July 2020

In this paper, we report our attempt to elaborate on cellulose-based materials and their potential application in membrane science, especially in separation applications. Furthermore, the cellulosic membrane has received attention for potential use a...

(This article belongs to the Special Issue Asymmetric Membranes)
  • Article
  • Open Access
13 Citations
4,986 Views
22 Pages

Multi-Objective Production Programming to Systematic Sorting and Remanufacturing in Second-Hand Clothing Recycling Industry

  • Chun-Wei Remen Lin,
  • Min Tsung Chen,
  • Ming-Lang Tseng,
  • Tatre Jantarakolica and
  • Helen Xu

13 July 2020

This study proposes a multi-objective production programming model which is established for systematic sorting and remanufacturing second-hand clothes and the objectives are twofold: (1) minimizing the remanufacturing cost to maintain the competitive...

  • Article
  • Open Access
11 Citations
3,254 Views
19 Pages

13 July 2020

In this research, we intend to develop a dynamical system for the magnetohydrodynamic (MHD) flow of an electrically conducting Casson nanofluid on exponentially shrinking and stretching surfaces, in the presence of a velocity and concertation slip ef...

(This article belongs to the Special Issue Nanofluids in Advanced Symmetric Systems)
  • Article
  • Open Access
6 Citations
3,178 Views
19 Pages

13 July 2020

With the increase in transportation emissions, road diseases in the saline soil area of Jilin Province have become a problem that requires serious attention. In order to improve the subgrade performance, the structural yield strength (SYS) of remolde...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
14 Citations
3,248 Views
20 Pages

13 July 2020

Recently, Li et al. proposed a data hiding method based on pixel value ordering (PVO) and prediction error expansion (PEE). In their method, maximum and minimum values were predicted and the pixel values were modified to embed secret data. Thereafter...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
17 Citations
2,483 Views
8 Pages

Stability Analysis of Charged Rotating Black Ring

  • Riasat Ali,
  • Kazuharu Bamba,
  • Muhammad Asgher,
  • Muhammad Fawad Malik and
  • Syed Asif Ali Shah

13 July 2020

We study the electromagnetic field equation along with the WKB approximation. The boson tunneling phenomenon from charged rotating black ring (CRBR) is analyzed. It is examined that reserve radiation consistent with CRBR can be computed in general by...

(This article belongs to the Section C: Physics)
  • Article
  • Open Access
14 Citations
3,904 Views
19 Pages

13 July 2020

The grand theory of action of Parsons has an important place in social theories. Furthermore, there are many uncertainties in the theory of Parsons. Classical math logic is often insufficient to explain these uncertainties. In this study, we explain...

(This article belongs to the Special Issue New Development of Neutrosophic Probability, Neutrosophic Statistics, Neutrosophic Algebraic Structures, and Neutrosophic & Plithogenic Optimizations)
  • Article
  • Open Access
29 Citations
4,939 Views
19 Pages

12 July 2020

The use of multifractal approaches has been growing because of the capacity of these tools to analyze complex properties and possible nonlinear structures such as those in financial time series. This paper analyzes the presence of long-range dependen...

(This article belongs to the Special Issue 30 Years of Econophysics: Symmetry in Physics and Economics)
  • Article
  • Open Access
15 Citations
4,747 Views
14 Pages

12 July 2020

To solve the problem that the elevator traction wheel slippage is difficult to detect quantitatively, a slippage detection method is proposed based on machine vision. The slip between the traction wheel and the wire rope will occur during the round-t...

(This article belongs to the Special Issue Symmetry in Mechanical Engineering Ⅱ)
  • Feature Paper
  • Article
  • Open Access
8 Citations
3,764 Views
14 Pages

11 July 2020

In this paper, we present several numerical simulation results of dendritic pattern formation using an isotropic crystal growth model, which is based on phase-field modeling, on curved surfaces. An explicit time-stepping method is used and the direct...

  • Article
  • Open Access
24 Citations
5,465 Views
33 Pages

Development of a New System for Attaching the Wheels of the Front Axle in the Cross-Country Vehicle

  • Ján Dižo,
  • Miroslav Blatnický,
  • Milan Sága,
  • Jozef Harušinec,
  • Juraj Gerlici and
  • Stanisław Legutko

11 July 2020

In the introduction of this article the authors deal with a general overview in the area of suspending the wheels of the road vehicles. It is important for creating an original design and this is the core of the operation. The implementation of the d...

(This article belongs to the Special Issue Symmetry in Mechanical Engineering Ⅱ)
  • Article
  • Open Access
5 Citations
4,844 Views
19 Pages

10 July 2020

Histidine is unique among amino acids because of its rich tautomeric properties. It participates in essential enzymatic centers, such as catalytic triads. The main aim of the study is the modeling of the change of molecular properties between the gas...

(This article belongs to the Section D: Chemistry: Symmetry/Asymmetry)
  • Article
  • Open Access
39 Citations
4,568 Views
19 Pages

10 July 2020

The telegraph model describes that the current and voltage waves can be reflected on a wire, that symmetrical wave patterns can form along a line. A numerical study of these voltage and current waves on a transferral line has been proposed via a modi...

(This article belongs to the Special Issue Advanced Calculus in Problems with Symmetry)
  • Article
  • Open Access
66 Citations
7,026 Views
27 Pages

Impact of Feature Selection Methods on the Predictive Performance of Software Defect Prediction Models: An Extensive Empirical Study

  • Abdullateef O. Balogun,
  • Shuib Basri,
  • Saipunidzam Mahamad,
  • Said J. Abdulkadir,
  • Malek A. Almomani,
  • Victor E. Adeyemo,
  • Qasem Al-Tashi,
  • Hammed A. Mojeed,
  • Abdullahi A. Imam and
  • Amos O. Bajeh

9 July 2020

Feature selection (FS) is a feasible solution for mitigating high dimensionality problem, and many FS methods have been proposed in the context of software defect prediction (SDP). Moreover, many empirical studies on the impact and effectiveness of F...

  • Article
  • Open Access
10 Citations
4,123 Views
15 Pages

Clustering Stock Performance Considering Investor Preferences Using a Fuzzy Inference System

  • Siti Nazifah Zainol Abidin,
  • Saiful Hafizah Jaaman,
  • Munira Ismail and
  • Ahmad Syafadhli Abu Bakar

9 July 2020

The fact that many stocks are traded in the marketplace makes the selection process of choosing the right stocks for investment crucial and challenging. In the literature on stock selection, cluster analysis-based methods have usually been used to gr...

  • Article
  • Open Access
6 Citations
2,551 Views
15 Pages

9 July 2020

In this paper, we propose a new type censoring scheme named a generalized adaptive progressive hybrid censoring scheme (GenAdPrHyCS). In this new type censoring scheme, the experiment is assured to stop at a pre-assigned time. This censoring scheme i...

(This article belongs to the Section B: Mathematics)

of 3

XFacebookLinkedIn
Symmetry - ISSN 2073-8994