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Symmetry, Volume 12, Issue 6

2020 June - 188 articles

Cover Story: Symmetry (https://www.mdpi.com/journal/symmetry) is an international peer-reviewed open access journal in a variety of subjects rank from physics, chemistry, biology, mathematics, to computer science. Our aim is to encourage scientists to publish their theoretical and experimental results in as much detail as possible.
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Articles (188)

  • Article
  • Open Access
10 Citations
3,543 Views
16 Pages

26 June 2020

In the process of composite placement, irregularity and asymmetry pressure fluctuation will affect the density and evenness of composite products, which lead to the inconsistency of interfacial strength and fiber volume fraction. The dynamic performa...

  • Article
  • Open Access
59 Citations
4,575 Views
37 Pages

A Robust q-Rung Orthopair Fuzzy Einstein Prioritized Aggregation Operators with Application towards MCGDM

  • Muhammad Riaz,
  • Hafiz Muhammad Athar Farid,
  • Humaira Kalsoom,
  • Dragan Pamučar and
  • Yu-Ming Chu

26 June 2020

A q-rung orthopair fuzzy set (q-ROFS) provides a significant mechanism for managing symmetrical aspects in real life circumstances. The renowned distinguishing feature of q-ROFS is that the sum of the qth powers to each membership degree (MD) and non...

  • Article
  • Open Access
16 Citations
3,934 Views
17 Pages

25 June 2020

Khon Kaen District is in the central, north-east part of Thailand and is being developed to handle the country’s growth. Khon Kaen District is undertaking the project of building a light rail as a facility for the people. Consequently, one of t...

  • Article
  • Open Access
76 Citations
8,581 Views
15 Pages

25 June 2020

Cloud detection is an important and difficult task in the pre-processing of satellite remote sensing data. The results of traditional cloud detection methods are often unsatisfactory in complex environments or the presence of various noise disturbanc...

  • Article
  • Open Access
15 Citations
5,381 Views
15 Pages

Predicting the Volume of Response to Tweets Posted by a Single Twitter Account

  • Krzysztof Fiok,
  • Waldemar Karwowski,
  • Edgar Gutierrez and
  • Tareq Ahram

25 June 2020

Social media users, including organizations, often struggle to acquire the maximum number of responses from other users, but predicting the responses that a post will receive before publication is highly desirable. Previous studies have analyzed why...

  • Article
  • Open Access
5 Citations
3,684 Views
15 Pages

24 June 2020

This paper proposes a separation model adopting gated nested U-Net (GNU-Net) architecture, which is essentially a deeply supervised symmetric encoder–decoder network that can generate full-resolution feature maps. Through a series of nested ski...

  • Article
  • Open Access
5 Citations
5,446 Views
8 Pages

Asymmetries in Football: The Pass—Goal Paradox

  • Daniel R. Antequera,
  • David Garrido,
  • Ignacio Echegoyen,
  • Roberto López del Campo,
  • Ricardo Resta Serra and
  • Javier M. Buldú

24 June 2020

We investigate the relation between the number of passes made by a football team and the number of goals. We analyze the 380 matches of a complete season of the Spanish national league “LaLiga" (2018/2019). We observe how the number of scored g...

  • Article
  • Open Access
6 Citations
3,950 Views
24 Pages

Quantum Key Distillation Using Binary Frames

  • Luis A. Lizama-Perez and
  • J. Mauricio López

24 June 2020

We introduce a new integral method for Quantum Key Distribution to perform sifting, reconciliation and amplification processes to establish a cryptographic key through the use of binary matrices called frames which are capable to increase quadratical...

  • Article
  • Open Access
30 Citations
3,936 Views
18 Pages

Persistence Analysis and Prediction of Low-Visibility Events at Valladolid Airport, Spain

  • Sara Cornejo-Bueno,
  • David Casillas-Pérez,
  • Laura Cornejo-Bueno,
  • Mihaela I. Chidean,
  • Antonio J. Caamaño,
  • Julia Sanz-Justo,
  • Carlos Casanova-Mateo and
  • Sancho Salcedo-Sanz

23 June 2020

This work presents an analysis of low-visibility event persistence and prediction at Villanubla Airport (Valladolid, Spain), considering Runway Visual Range (RVR) time series in winter. The analysis covers long- and short-term persistence and predict...

  • Article
  • Open Access
248 Citations
13,232 Views
20 Pages

23 June 2020

The network intrusion detection system (NIDS) aims to identify virulent action in a network. It aims to do that through investigating the traffic network behavior. The approaches of data mining and machine learning (ML) are extensively used in the NI...

  • Article
  • Open Access
56 Citations
4,920 Views
23 Pages

23 June 2020

The purpose of this study is to produce a landslide susceptibility map of Southeastern Helong City, Jilin Province, Northeastern China. According to the geological hazard survey (1:50,000) project of Helong city, a total of 83 landslides were mapped...

  • Article
  • Open Access
27 Citations
4,030 Views
18 Pages

Estimation of Natural Radionuclides’ Concentration of the Plutonic Rocks in the Sakarya Zone, Turkey Using Multivariate Statistical Methods

  • Fusun Yalcin,
  • Nurdane Ilbeyli,
  • Mehmet Demirbilek,
  • Mustafa Gurhan Yalcin,
  • Alper Gunes,
  • Abdullah Kaygusuz and
  • Suleyman Fatih Ozmen

23 June 2020

The study aimed to determine the natural radioactivity levels of 226Ra, 232Th, and 40K by the Gamma-Ray spectrometry method, and radiological hazard parameters of the plutonic rocks in the Western and Central Sakarya Zone and to analyze the data usin...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,827 Views
7 Pages

23 June 2020

The near degeneracy of the neutrino masses—a mass symmetry—allows condensed neutrino objects that may be the Dark Matter everybody is looking for. If the KATRIN terrestrial experiment has a neutrino mass signal, it will contradict the ana...

  • Article
  • Open Access
8 Citations
6,865 Views
18 Pages

AACS: Attribute-Based Access Control Mechanism for Smart Locks

  • Zhenghao Xin,
  • Liang Liu and
  • Gerhard Hancke

23 June 2020

This article researched the security and application of smart locks in Internet of Things environments in the domain of computer and engineer science and symmetry. Smart locks bring much convenience for users. However, most smart lock systems are clo...

  • Article
  • Open Access
106 Citations
7,855 Views
31 Pages

Effect of Zinc Oxide Nano-Additives and Soybean Biodiesel at Varying Loads and Compression Ratios on VCR Diesel Engine Characteristics

  • Rakhamaji S. Gavhane,
  • Ajit M. Kate,
  • Abhay Pawar,
  • Mohammad Reza Safaei,
  • Manzoore Elahi M. Soudagar,
  • Muhammad Mujtaba Abbas,
  • Hafiz Muhammad Ali,
  • Nagaraj R Banapurmath,
  • Marjan Goodarzi and
  • Kiran Shahapurkar
  • + 2 authors

22 June 2020

The present investigation is directed towards synthesis of zinc oxide (ZnO) nanoparticles and steady blending with soybean biodiesel (SBME25) to improve the fuel properties of SBME25 and enhance the overall characteristics of a variable compression r...

  • Editorial
  • Open Access
8 Citations
3,125 Views
4 Pages

22 June 2020

Nowadays, data security is becoming an emerging and challenging issue due to the growth in web-connected devices and significant data generation from information and communication technology (ICT) platforms. Many existing types of research from indus...

  • Article
  • Open Access
48 Citations
3,070 Views
17 Pages

An Upper Bound of the Third Hankel Determinant for a Subclass of q-Starlike Functions Associated with k-Fibonacci Numbers

  • Muhammad Shafiq,
  • Hari M. Srivastava,
  • Nazar Khan,
  • Qazi Zahoor Ahmad,
  • Maslina Darus and
  • Samiha Kiran

22 June 2020

In this paper, we use q-derivative operator to define a new class of q-starlike functions associated with k-Fibonacci numbers. This newly defined class is a subclass of class A of normalized analytic functions, where class A is invariant...

  • Article
  • Open Access
41 Citations
3,680 Views
14 Pages

An Optimal Fourth Order Derivative-Free Numerical Algorithm for Multiple Roots

  • Sunil Kumar,
  • Deepak Kumar,
  • Janak Raj Sharma,
  • Clemente Cesarano,
  • Praveen Agarwal and
  • Yu-Ming Chu

21 June 2020

A plethora of higher order iterative methods, involving derivatives in algorithms, are available in the literature for finding multiple roots. Contrary to this fact, the higher order methods without derivatives in the iteration are difficult to const...

  • Article
  • Open Access
2 Citations
2,524 Views
13 Pages

21 June 2020

The fundamental groups and homotopy decompositions of algebraic topology have applications in systems involving symmetry breaking with topological excitations. The main aim of this paper is to analyze the properties of homotopy decompositions in quot...

  • Article
  • Open Access
1 Citations
5,677 Views
11 Pages

21 June 2020

We present surprisingly simple closed-form solutions for electric fields and electric potentials at arbitrary position ( x ,   y ) within a plane crossed by infinitely long line charges at regularly repeating positions using angular...

  • Article
  • Open Access
26 Citations
3,235 Views
17 Pages

20 June 2020

The authors have reviewed a wide production of scientific articles dealing with the evolution of the concept of convexity and its various applications, and based on this they have detected the relationship that can be established between trapezoidal...

  • Feature Paper
  • Article
  • Open Access
21 Citations
2,913 Views
21 Pages

An Extended Analysis on Robust Dissipativity of Uncertain Stochastic Generalized Neural Networks with Markovian Jumping Parameters

  • Usa Humphries,
  • Grienggrai Rajchakit,
  • Ramalingam Sriraman,
  • Pramet Kaewmesri,
  • Pharunyou Chanthorn,
  • Chee Peng Lim and
  • Rajendran Samidurai

20 June 2020

The main focus of this research is on a comprehensive analysis of robust dissipativity issues pertaining to a class of uncertain stochastic generalized neural network (USGNN) models in the presence of time-varying delays and Markovian jumping paramet...

  • Article
  • Open Access
2 Citations
2,930 Views
16 Pages

20 June 2020

In classical finance theory, cognitive bias does not play any role in predicting returns. With the development of the economy, the classical theory gradually finds it difficult to offset the irrational demand through arbitrage. Due to the rise of beh...

  • Article
  • Open Access
13 Citations
3,793 Views
17 Pages

Concrete Based Jeffrey Nanofluid Containing Zinc Oxide Nanostructures: Application in Cement Industry

  • Nadeem Ahmad Sheikh,
  • Dennis Ling Chuan Ching,
  • Ilyas Khan,
  • Afnan Ahmad and
  • Syed Ammad

20 June 2020

Concrete is a non-Newtonian fluid which is a counterexample of Jeffrey fluid. The flow of Jeffrey fluid is considered containing nanostructures of zinc oxide in this study. The flow of the nanofluid is modeled in terms of partial fractional different...

  • Article
  • Open Access
5 Citations
2,831 Views
15 Pages

Kane’s Formalism Used to the Vibration Analysis of a Wind Water Pump

  • Gabriel Leonard Mitu,
  • Eliza Chircan,
  • Maria Luminita Scutaru and
  • Sorin Vlase

19 June 2020

The paper uses Kane’s formalism to study two degrees of freedom (DOF) mechanisms with elastic elements = employed in a wind water pump. This formalism represents an alternative, in our opinion, that is simpler and more economical to Lagrange&rs...

  • Article
  • Open Access
4 Citations
2,412 Views
12 Pages

19 June 2020

In this paper, by utilizing the resolvent operator theory, the stochastic analysis method and Picard type iterative technique, we first investigate the existence as well as the uniqueness of mild solutions for a class of α ( 1 , 2 ) ...

  • Article
  • Open Access
2 Citations
2,711 Views
15 Pages

The Status of Edge Strands in Ferredoxin-Like Fold

  • Mateusz Banach,
  • Piotr Fabian,
  • Katarzyna Stapor,
  • Leszek Konieczny,
  • Magdalena Ptak-Kaczor and
  • Irena Roterman

19 June 2020

There is an opinion in professional literature that edge-strands in β-sheet are critical to the processes of amyloid transformation. Propagation of fibrillar forms mainly takes place on the basis of β-sheet type interactions. In many protei...

  • Article
  • Open Access
4 Citations
3,035 Views
23 Pages

19 June 2020

The initial value problem for the third order delay differential equation in a Hilbert space with an unbounded operator is investigated. The absolute stable three-step difference scheme of a first order of accuracy is constructed and analyzed. This d...

  • Article
  • Open Access
7 Citations
5,201 Views
9 Pages

A Time-Motion Analysis of the Cross-Over Step Block Technique in Volleyball: Non-Linear and Asymmetric Performances

  • Elena Hernández-Hernández,
  • Antonio Montalvo-Espinosa and
  • Antonio García-de-Alcaraz

18 June 2020

Blocking performance in volleyball is strongly affected by the time in which the action is executed. This study analyzes the time-motion variables in terms of the player’s role and movement direction (right or left), in different phases of the...

  • Article
  • Open Access
14 Citations
3,145 Views
13 Pages

Solute Transport in the Element of Fractured Porous Medium with an Inhomogeneous Porous Block

  • Bakhtiyor Khuzhayorov,
  • Jabbor Mustofoqulov,
  • Gafurjan Ibragimov,
  • Fadzilah Md Ali and
  • Bekzodjon Fayziev

18 June 2020

In this paper, the problem of solute transport in a fractured-porous medium taking into account the non-equilibrium adsorption kinetic is studied. The solute transport in fractured-porous medium consisting of two fractures and a porous block between...

  • Review
  • Open Access
30 Citations
9,319 Views
22 Pages

Artificial Intelligence: An Energy Efficiency Tool for Enhanced High performance computing

  • Anabi Hilary Kelechi,
  • Mohammed H. Alsharif,
  • Okpe Jonah Bameyi,
  • Paul Joan Ezra,
  • Iorshase Kator Joseph,
  • Aaron-Anthony Atayero,
  • Zong Woo Geem and
  • Junhee Hong

18 June 2020

Power-consuming entities such as high performance computing (HPC) sites and large data centers are growing with the advance in information technology. In business, HPC is used to enhance the product delivery time, reduce the production cost, and decr...

  • Article
  • Open Access
228 Citations
17,030 Views
21 Pages

Performance Evaluation of Machine Learning Methods for Forest Fire Modeling and Prediction

  • Binh Thai Pham,
  • Abolfazl Jaafari,
  • Mohammadtaghi Avand,
  • Nadhir Al-Ansari,
  • Tran Dinh Du,
  • Hoang Phan Hai Yen,
  • Tran Van Phong,
  • Duy Huu Nguyen,
  • Hiep Van Le and
  • Tran Thi Tuyen
  • + 3 authors

17 June 2020

Predicting and mapping fire susceptibility is a top research priority in fire-prone forests worldwide. This study evaluates the abilities of the Bayes Network (BN), Naïve Bayes (NB), Decision Tree (DT), and Multivariate Logistic Regression (MLP)...

  • Article
  • Open Access
21 Citations
2,869 Views
13 Pages

17 June 2020

The objective was to optimize the existing solution for the limit support pressure of a tunnel face. Firstly, based on the numerical simulation results, the existing three-dimensional analytical solution for pore water pressure distribution is expand...

  • Article
  • Open Access
7 Citations
3,443 Views
23 Pages

A Multicriteria Decision Aid-Based Model for Measuring the Efficiency of Business-Friendly Cities

  • Mihailo Jovanović,
  • Slobodan Nedeljković,
  • Milan Ranđelović,
  • Gordana Savić,
  • Vladica Stojanović,
  • Vladimir Stojanović and
  • Dragan Ranđelović

17 June 2020

Local self-government has the task of enabling stable economic development, in addition to enabling a normal quality of life for citizens. This is why the state government should provide guidelines that will improve the local business climate, and by...

  • Article
  • Open Access
17 Citations
2,989 Views
24 Pages

On Valency-Based Molecular Topological Descriptors of Subdivision Vertex-Edge Join of Three Graphs

  • Juan L. G. Guirao,
  • Muhammad Imran,
  • Muhammad Kamran Siddiqui and
  • Shehnaz Akhter

17 June 2020

In the studies of quantitative structure–activity relationships (QSARs) and quantitative structure–property relationships (QSPRs), graph invariants are used to estimate the biological activities and properties of chemical compounds. In th...

  • Article
  • Open Access
25 Citations
3,339 Views
16 Pages

16 June 2020

In this paper, a definition of quadripartitioned single valued bipolar neutrosophic set (QSVBNS) is introduced as a generalization of both quadripartitioned single valued neutrosophic sets (QSVNS) and bipolar neutrosophic sets (BNS). There is an inhe...

  • Feature Paper
  • Article
  • Open Access
8 Citations
3,888 Views
13 Pages

16 June 2020

Detecting bimodality of a frequency distribution is of considerable interest in several fields. Classical inferential methods for detecting bimodality focused in third and fourth moments through the kurtosis measure. Nonparametric approach-based asym...

  • Feature Paper
  • Article
  • Open Access
12 Citations
2,754 Views
24 Pages

16 June 2020

Generalized exponentially weighted moving average (EWMA) and double EWMA (DEWMA) charts based on the Conway–Maxwell–Poisson (CMP or COM-Poisson) distribution, also known as the GEWMA and CMP-DEWMA charts, are effectively used for monitori...

  • Feature Paper
  • Review
  • Open Access
6 Citations
3,997 Views
19 Pages

Hypnotizability-Related Asymmetries: A Review

  • Vilfredo De Pascalis and
  • Enrica Laura Santarcangelo

16 June 2020

Hypnotizability is a dispositional trait reflecting the individual ability to modify perception, memory and behavior according to imaginative suggestions. It is measured by validated scales that classify the general population in high (highs), medium...

  • Article
  • Open Access
1 Citations
2,948 Views
24 Pages

A New Objective Function for the Recovery of Gielis Curves

  • Alejandro Marcelo Arce,
  • Gabriel Giovanni Caroni,
  • José Luis Vázquez Noguera,
  • Diego P. Pinto-Roa,
  • Horacio Legal-Ayala and
  • Sebastián A. Grillo

16 June 2020

The superformula generates curves called Gielis curves, which depend on a small number of input parameters. Recovering parameters generating a curve that adapts to a set of points is a non-trivial task, thus methods to accomplish it are still being d...

  • Article
  • Open Access
10 Citations
2,439 Views
12 Pages

New Uniform Motion and Fermi–Walker Derivative of Normal Magnetic Biharmonic Particles in Heisenberg Space

  • Talat Körpinar,
  • Zeliha Körpinar,
  • Yu-Ming Chu,
  • Mehmet Ali Akinlar and
  • Mustafa Inc

16 June 2020

In the present paper, we firstly discuss the normal biharmonic magnetic particles in the Heisenberg space. We express new uniform motions and its properties in the Heisenberg space. Moreover, we obtain a new uniform motion of Fermi–Walker deriv...

  • Article
  • Open Access
9 Citations
3,057 Views
38 Pages

Generalized Dual-Root Lattice Transforms of Affine Weyl Groups

  • Tomasz Czyżycki,
  • Jiří Hrivnák and
  • Lenka Motlochová

16 June 2020

Discrete transforms of Weyl orbit functions on finite fragments of shifted dual root lattices are established. The congruence classes of the dual weight lattices intersected with the fundamental domains of the affine Weyl groups constitute the point...

  • Article
  • Open Access
18 Citations
3,379 Views
29 Pages

Bioconvection in Cross Nano-Materials with Magnetic Dipole Impacted by Activation Energy, Thermal Radiation, and Second Order Slip

  • Zahra Abdelmalek,
  • Kamel Al-Khaled,
  • Hassan Waqas,
  • A. Aldabesh,
  • Sami Ullah Khan,
  • Sa’ed A. Musmar and
  • Iskander Tlili

16 June 2020

Ferro liquids derive their magneto–viscous behavior from the suspended magnetic nanomaterial that enables tunable changes in temperature, as well as nano-structured fluid characteristics. A theoretical model that depicts the bioconvection flow...

  • Article
  • Open Access
12 Citations
13,787 Views
14 Pages

Comprehensive View on Racing Car Upright Design and Manufacturing

  • Marek Hunar,
  • Lukas Jancar,
  • David Krzikalla,
  • David Kaprinay and
  • David Srnicek

16 June 2020

This paper deals with the design of an upright using a topological optimization. This type of optimization is a relatively young and rapidly evolving area of computational mechanics that seeks to make multiple material savings that cannot be achieved...

  • Article
  • Open Access
6 Citations
2,226 Views
13 Pages

16 June 2020

The authors investigated the changes in diffuse reflectance spectra (ρλ) within 0.32–2.1 μm and integral absorption coefficient (as) of solar irradiation for a zinc oxide powder-based coating. The latter was consequently irradiate...

  • Article
  • Open Access
19 Citations
8,116 Views
11 Pages

The Usage of Alternative Materials to Optimize Bus Frame Structure

  • Tautvydas Pravilonis,
  • Edgar Sokolovskij,
  • Artūras Kilikevičius,
  • Jonas Matijošius and
  • Kristina Kilikevičienė

15 June 2020

The strength and stiffness of the frame is one of the key indicators of vehicle structures. Insufficient stiffness causes vibration and noise, and is also less comfortable for both the passengers and the driver. Symmetry is required between the stren...

  • Feature Paper
  • Article
  • Open Access
13 Citations
3,458 Views
15 Pages

Type 2 Degenerate Poly-Euler Polynomials

  • Dae Sik Lee,
  • Hye Kyung Kim and
  • Lee-Chae Jang

15 June 2020

In recent years, many mathematicians have studied the degenerate versions of many special polynomials and numbers. The polyexponential functions were introduced by Hardy and rediscovered by Kim, as inverses to the polylogarithms functions. The paper...

  • Feature Paper
  • Article
  • Open Access
9 Citations
2,503 Views
10 Pages

14 June 2020

Recently, Kim-Kim (2019) introduced polyexponential and unipoly functions. By using these functions, they defined type 2 poly-Bernoulli and type 2 unipoly-Bernoulli polynomials and obtained some interesting properties of them. Motivated by the latter...

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Symmetry - ISSN 2073-8994