Skip to Content

Applied Sciences, Volume 10, Issue 24

2020 December-2 - 391 articles

Cover Story: Through the years, inspiration from nature has taken the lead for technological development and improvement. This concept firmly applies to the design of the antennas, whose performances receive a relevant boost due to the implementation of bio-inspired geometries. In this scenario, the present paper proposes the analysis and optimization of bio-inspired spiral shell Dielectric Resonator Antennas resembling the Button snail Modulus modulus. The shape is implemented by means of Gielis’ superformula with the goal of boosting the antenna bandwidth and gain in the sub-6GHz range. The proposed configuration is also analyzed in terms of fabrication feasibility via Additive Manufacturing. 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 (391)

  • Article
  • Open Access
2,716 Views
16 Pages

21 December 2020

Traditional methods such as the finite difference method, the finite element method, and the finite volume method are all based on continuous interpolation. In general, if discontinuity occurred, the calculation result would show low accuracy and poo...

  • Article
  • Open Access
7 Citations
4,781 Views
13 Pages

21 December 2020

In today’s business world, there are two very important health issues that the employees in the service sector are faced with: Spinal disease, especially in the lower back, and carpal tunnel syndrome. These are well-known musculoskeletal disord...

  • Article
  • Open Access
14 Citations
3,561 Views
14 Pages

21 December 2020

A highly transparent polarization-insensitive metamaterial absorber with wideband microwave absorption is presented. The broadband absorption (6.0~16.7 GHz, absorptance > 85%) is achieved using three patterned resistive metasurfaces. The visible l...

  • Article
  • Open Access
7 Citations
2,971 Views
17 Pages

On Ad Hoc Communication in Industrial Environments

  • Christian Sauer,
  • Marco Schmidt and
  • Eike Lyczkowski

21 December 2020

Wireless communication is becoming vital in the industrial environment. New communication technologies, including ad hoc communication, are researched for this application. A thorough understanding regarding the connection characteristics of industri...

  • Article
  • Open Access
6 Citations
4,677 Views
20 Pages

21 December 2020

This paper proposes an electro-hydraulic servo control method and realizes the automatic control and remote control of free forging hammers for the first time. A configuration and control strategy for the program-control free forging hammer are const...

  • Article
  • Open Access
10 Citations
4,034 Views
13 Pages

Estimation of Finite Finger Joint Centers of Rotation Using 3D Hand Skeleton Motions Reconstructed from CT Scans

  • Xiaopeng Yang,
  • Zhichan Lim,
  • Hayoung Jung,
  • Younggi Hong,
  • Mengfei Zhang,
  • Dougho Park and
  • Heecheon You

21 December 2020

The present study proposed a method to estimate the finite finger joint centers of rotation (CoRs) with high accuracy using 3D hand skeleton motions reconstructed from CT scans. Ten hand postures starting from a fully extended posture and ending at a...

  • Article
  • Open Access
9 Citations
4,971 Views
11 Pages

Evaluation of the Temperature and Time in Centrifugation-Assisted Freeze Concentration

  • Tamara Santana,
  • Jorge Moreno,
  • Guillermo Petzold,
  • Roberto Santana and
  • Guido Sáez-Trautmann

21 December 2020

Centrifugation is a technique applied to assist in the freeze concentration of fruit juices and solutions. The aim of this work was to study the influence of the time–temperature parameters on the centrifugation process as a technique applied t...

  • Article
  • Open Access
8 Citations
3,035 Views
10 Pages

21 December 2020

The purpose of this study was to investigate the relative weights of physical strength factors in sports events. We selected 16,645 people as a sample group who participated in physical fitness measurements through eight sports science centers across...

  • Article
  • Open Access
5 Citations
3,266 Views
17 Pages

Non-Intrusive Load Disaggregation Based on a Multi-Scale Attention Residual Network

  • Liguo Weng,
  • Xiaodong Zhang,
  • Junhao Qian,
  • Min Xia,
  • Yiqing Xu and
  • Ke Wang

21 December 2020

Non-intrusive load disaggregation (NILD) is of great significance to the development of smart grids. Current energy disaggregation methods extract features from sequences, and this process easily leads to a loss of load features and difficulties in d...

  • Article
  • Open Access
9 Citations
4,559 Views
16 Pages

21 December 2020

The amount of information which can be stored in the human brain is limited and dependent on memory capacity. Over the last few years there has been a trend in training cognitive skills, not only to prevent cognitive decline, which is inevitable as a...

  • Article
  • Open Access
13 Citations
4,889 Views
25 Pages

21 December 2020

The fossil record is notorious for being incomplete and distorted, frequently conditioning the type of knowledge that can be extracted from it. In many cases, this often leads to issues when performing complex statistical analyses, such as classifica...

  • Article
  • Open Access
5 Citations
3,275 Views
24 Pages

21 December 2020

The semi-conical shell workpiece is a special kind of thin-wall part that is commonly used in aerospace and mold industries. Due to the special stiffness distribution and weak rigidity for the area with a large radius, the machining quality of the se...

  • Article
  • Open Access
9 Citations
3,781 Views
14 Pages

21 December 2020

P-wave velocity is employed in various fields of engineering to estimate the mechanical properties of rock, as its measurement is reliable, convenient, rapid, nondestructive, and economical. The present study aimed to (i) correlate natural, dry, and...

  • Article
  • Open Access
15 Citations
3,685 Views
21 Pages

21 December 2020

Motion planning is one of the most important technologies for free-floating space robots (FFSRs) to increase operation safety and autonomy in orbit. As a nonholonomic system, a first-order differential relationship exists between the joint angle and...

  • Article
  • Open Access
2,546 Views
11 Pages

The Problem of Accounting for Heat Exchange between the Flow and the Flow Part Surfaces When Modeling a Viscous Flow in Low-Flow Stages of a Centrifugal Compressor

  • Sergey Kartashov,
  • Yuri Kozhukhov,
  • Vycheslav Ivanov,
  • Aleksei Danilishin,
  • Aleksey Yablokov,
  • Aleksey Aksenov,
  • Ivan Yanin and
  • Minh Hai Nguyen

21 December 2020

In this paper, we review the problem of accounting for heat exchange between the flow and the flow part surfaces when creating a calculation model for modeling the workflow process of low-flow stages of a centrifugal compressor using computational fl...

  • Article
  • Open Access
3 Citations
3,030 Views
17 Pages

21 December 2020

This paper introduces the localization method of an Autonomous Underwater Vehicle (AUV) in environments (such as harbors or ports) where there can be passing ships near the AUV. It is assumed that the AUV can access the trajectory and approximate sou...

  • Review
  • Open Access
66 Citations
8,185 Views
28 Pages

A Review of Pretreatment Methods to Enhance Solids Reduction during Anaerobic Digestion of Municipal Wastewater Sludges and the Resulting Digester Performance: Implications to Future Urban Biorefineries

  • Bimi Shrestha,
  • Rafael Hernandez,
  • Dhan Lord B. Fortela,
  • Wayne Sharp,
  • Andrei Chistoserdov,
  • Daniel Gang,
  • Emmanuel Revellame,
  • William Holmes and
  • Mark E. Zappi

21 December 2020

The rapid increase in the population is expected to result in the approaching of design capacity for many US wastewater treatment plants (WWTPs) over the next decade. WWTPs treat both municipal and industrial wastewater influents, resulting in the pr...

  • Article
  • Open Access
17 Citations
7,696 Views
16 Pages

Comparison between Occlusal Errors of Single Posterior Crowns Adjusted Using Patient Specific Motion or Conventional Methods

  • Ye-Chan Lee,
  • Chunui Lee,
  • June-Sung Shim,
  • Ji-Man Park,
  • Yooseok Shin,
  • Jong-Eun Kim and
  • Keun-Woo Lee

21 December 2020

Recently, digital technology has been used in dentistry to enhance accuracy and to reduce operative time. Due to advances in digital technology, the integration of individual mandibular motion into the mapping of the occlusal surface is being attempt...

  • Article
  • Open Access
5 Citations
2,881 Views
12 Pages

21 December 2020

This work aims at the unification of the thermodynamically consistent representation of the micromorphic theory and the microdamage approach for the purpose of modeling crack growth and damage regularization in crystalline solids. In contrast to the...

  • Review
  • Open Access
54 Citations
6,843 Views
32 Pages

Four-Dimensional (Bio-)printing: A Review on Stimuli-Responsive Mechanisms and Their Biomedical Suitability

  • Pedro Morouço,
  • Bahareh Azimi,
  • Mario Milazzo,
  • Fatemeh Mokhtari,
  • Cristiana Fernandes,
  • Diana Reis and
  • Serena Danti

21 December 2020

The applications of tissue engineered constructs have witnessed great advances in the last few years, as advanced fabrication techniques have enabled promising approaches to develop structures and devices for biomedical uses. (Bio-)printing, includin...

  • Review
  • Open Access
42 Citations
10,662 Views
27 Pages

21 December 2020

The Mediterranean diet (MD) concept as currently known describes the dietary patterns that were followed in specific regions of the area in the 1950s and 1960s. The broad recognition of its positive effects on the longevity of Mediterranean populatio...

  • Article
  • Open Access
5 Citations
2,776 Views
17 Pages

Metaheuristics and Support Vector Data Description for Fault Detection in Industrial Processes

  • Jesús Alejandro Navarro-Acosta,
  • Irma D. García-Calvillo,
  • Vanesa Avalos-Gaytán and
  • Edgar O. Reséndiz-Flores

21 December 2020

In this study, a system for faults detection using a combination of Support Vector Data Description (SVDD) with metaheuristic algorithms is presented. The presented approach is applied to a real industrial process where the set of measured faults is...

  • Article
  • Open Access
3 Citations
3,260 Views
18 Pages

21 December 2020

A bidirectional three-level soft switching circuit topology is proposed and implemented for medium voltage applications such as 750 V dc light rail transit, high power converters, or dc microgrid systems. The studied converter is constructed with a t...

  • Article
  • Open Access
20 Citations
3,434 Views
11 Pages

Defatted Hydroethanolic Extract of Ammodaucus leucotrichus Cosson and Durieu Seeds: Antidiabetic and Anti-Inflammatory Activities

  • Imane Es-Safi,
  • Hamza Mechchate,
  • Amal Amaghnouje,
  • Anna Calarco,
  • Smahane Boukhira,
  • Omar M. Noman,
  • Ramzi A. Mothana,
  • Fahd A. Nasr,
  • Hicham Bekkari and
  • Dalila Bousta

21 December 2020

The seeds of Ammodaucus leucotrichus Cosson and Durieu have been used in the North African Sahara as a traditional medicine to treat diabetes. The present study investigates the antidiabetic, antihyperglycemic, and anti-inflammatory properties of the...

  • Article
  • Open Access
1 Citations
4,883 Views
13 Pages

Insights from Learning Analytics for Hands-On Cloud Computing Labs in AWS

  • Germán Moltó,
  • Diana M. Naranjo and
  • J. Damian Segrelles

21 December 2020

Cloud computing instruction requires hands-on experience with a myriad of distributed computing services from a public cloud provider. Tracking the progress of the students, especially for online courses, requires one to automatically gather evidence...

  • Article
  • Open Access
5 Citations
13,372 Views
12 Pages

Systematic Quantification of Cell Confluence in Human Normal Oral Fibroblasts

  • Ching-Hsiang Chiu,
  • Jyh-Der Leu,
  • Tzu-Ting Lin,
  • Pin-Hua Su,
  • Wan-Chun Li,
  • Yi-Jang Lee and
  • Da-Chuan Cheng

21 December 2020

Background: The accurate determination of cell confluence is a critical step for generating reasonable results of designed experiments in cell biological studies. However, the cell confluence of the same culture may be diversely predicted by individu...

  • Article
  • Open Access
2 Citations
4,031 Views
14 Pages

21 December 2020

The demand for mass storage devices has become an inevitable consequence of the explosive increase in data volume. The three-dimensional (3D) vertical NAND (V-NAND) and quad-level cell (QLC) technologies rapidly accelerate the capacity increase of fl...

  • Article
  • Open Access
169 Citations
18,454 Views
17 Pages

Machine Learning-Based Prediction of Air Quality

  • Yun-Chia Liang,
  • Yona Maimury,
  • Angela Hsiang-Ling Chen and
  • Josue Rodolfo Cuevas Juarez

21 December 2020

Air, an essential natural resource, has been compromised in terms of quality by economic activities. Considerable research has been devoted to predicting instances of poor air quality, but most studies are limited by insufficient longitudinal data, m...

  • Article
  • Open Access
2,801 Views
26 Pages

21 December 2020

The promising seismic response emerged by the concept of base isolation leads to increasing practical applications into buildings located at low-to-moderate seismicity regions. However, it is questionable that their collapse capacities can be ensured...

  • Feature Paper
  • Review
  • Open Access
99 Citations
18,156 Views
42 Pages

Electrical Resistivity and Electrical Impedance Measurement in Mortar and Concrete Elements: A Systematic Review

  • Gloria Cosoli,
  • Alessandra Mobili,
  • Francesca Tittarelli,
  • Gian Marco Revel and
  • Paolo Chiariotti

21 December 2020

This paper aims at analyzing the state-of-the-art techniques to measure electrical impedance (and, consequently, electrical resistivity) of mortar/concrete elements. Despite the validity of the concept being widely proven in the literature, a clear s...

  • Article
  • Open Access
2 Citations
4,586 Views
20 Pages

Scattering or Pushing for Object Singulation in Cluttered Environment: Case Study with Soma Cube

  • Muhammad Umair Ahmad Khan,
  • Abid Imran,
  • Sanghwa Kim,
  • Hyunho Hwang,
  • Ji Yeong Lee,
  • Sungon Lee and
  • Byung-Ju Yi

21 December 2020

This paper proposes a hybrid singulation approach combining dynamic scattering and pushing techniques. Using the impulse-based dynamic model, a guideline is provided to decide whether scattering or pushing is conducted for object singulation. The Som...

  • Article
  • Open Access
8 Citations
5,189 Views
17 Pages

Development of a New KPI for the Economic Quantification of Six Big Losses and Its Implementation in a Cyber Physical System

  • Paula Morella,
  • María Pilar Lambán,
  • Jesús Royo,
  • Juan Carlos Sánchez and
  • Jaime Latapia

21 December 2020

The purpose of this work is to develop a new Key Performance Indicator (KPI) that can quantify the cost of Six Big Losses developed by Nakajima and implements it in a Cyber Physical System (CPS), achieving a real-time monitorization of the KPI. This...

  • Article
  • Open Access
2,218 Views
10 Pages

20 December 2020

A three-dimensional profile reconstruction of live cells in dynamic cell cultures is a challenging problem due to the highly scattering nature of cell mediums. Furthermore, it is an interesting problem since these cultures present the optimal in vitr...

  • Feature Paper
  • Article
  • Open Access
20 Citations
5,185 Views
24 Pages

20 December 2020

We previously identified secreted protein acidic and rich in cysteine (Sparc) as an exercise-induced gene in young and elderly individuals. Via this animal experiment, we aim to identify selected implications of SPARC mainly within the muscle in the...

  • Feature Paper
  • Article
  • Open Access
6 Citations
3,111 Views
13 Pages

Patient Profiling Based on Spectral Clustering for an Enhanced Classification of Patients with Tension-Type Headache

  • Oscar J. Pellicer-Valero,
  • César Fernández-de-las-Peñas,
  • José D. Martín-Guerrero,
  • Esperanza Navarro-Pardo,
  • Margarita I. Cigarán-Méndez and
  • Lidiane L. Florencio

20 December 2020

Profiling groups of patients in clusters can provide meaningful insights into the features of the population, thus helping to identify people at risk of chronification and the development of specific therapeutic strategies. Our aim was to determine i...

  • Article
  • Open Access
24 Citations
7,816 Views
16 Pages

Identification of Tire Model Parameters with Artificial Neural Networks

  • José Luis Olazagoitia,
  • Jesus Angel Perez and
  • Francisco Badea

20 December 2020

Accurate modeling of tire characteristics is one of the most challenging tasks. Many mathematical models can be used to fit measured data. Identification of the parameters of these models usually relies on least squares optimization techniques. Diffe...

  • Article
  • Open Access
12 Citations
7,161 Views
13 Pages

20 December 2020

In this study, according to the exercise intensity (50–60% of HRmax (Maximum Heart Rate), RPE (Rating of Perceived Exertion: 11–13) proposed by The American Congress of Obstetricians and Gynecologists (ACOG) for pregnant women, mat Pilate...

  • Article
  • Open Access
7 Citations
3,403 Views
10 Pages

Pedestrian and Multi-Class Vehicle Classification in Radar Systems Using Rulex Software on the Raspberry Pi

  • Ali Walid Daher,
  • Ali Rizik,
  • Andrea Randazzo,
  • Emanuele Tavanti,
  • Hussein Chible,
  • Marco Muselli and
  • Daniele D. Caviglia

20 December 2020

Nowadays, cities can be perceived as increasingly dangerous places. Usually, CCTV is one of the main technologies used in a modern security system. However, poor light situations or bad weather conditions (rain, fog, etc.) limit the detection capabil...

  • Article
  • Open Access
34 Citations
5,212 Views
16 Pages

20 December 2020

The Covid-19 crisis lockdown caused rapid transformation to remote working/learning modes and the need for e-commerce-, web-education-related projects development, and maintenance. However, an increase in internet traffic has a direct impact on infra...

  • Article
  • Open Access
7 Citations
3,442 Views
18 Pages

Synthesis and Characterization of Mechanically Alloyed, Nanostructured Cubic MoW Carbide

  • Martin Martinez Ruiz,
  • Jesús Noé Rivera Olvera,
  • Rodolfo Morales Davila,
  • Leonardo González Reyes,
  • Vicente Garibay Febles,
  • Jesus Garcia Martinez and
  • Lucía G. Diaz Barriga Arceo

20 December 2020

Carbides are used extensively as cutting tools, forming dies, and recently in catalysis applications, among other industrial applications. In this work, the synthesis and characterization of a nanostructured MoW bimetallic carbide were carried out by...

  • Article
  • Open Access
10 Citations
2,926 Views
16 Pages

Characterization of Responsive Plasters for Passive Moisture and Temperature Control

  • Jan Fořt,
  • Jan Kočí,
  • Jaroslav Pokorný,
  • Luboš Podolka,
  • Michal Kraus and
  • Robert Černý

20 December 2020

Ambient comfort maintenance accompanied by excessive energy consumption is hugely criticized concerning the limited sustainability of the building sector in the long-term. In this sense, the energy reduction strategies based on the employment of pass...

  • Article
  • Open Access
7 Citations
3,833 Views
23 Pages

20 December 2020

This paper presents the advanced control theory’s original utilisation to realise a system that controls the fermentation process in batch bioreactors. Proper fermentation control is essential for quality fermentation products and the economica...

  • Article
  • Open Access
1 Citations
3,915 Views
13 Pages

20 December 2020

To improve the power of reference wavefront generated by reference wavefront source (RWS) based on silicon nitride (SiN) waveguide in point diffraction interferometer (PDI), we design the Y-branch coupler and grating coupler, and then compare the max...

  • Article
  • Open Access
35 Citations
14,839 Views
24 Pages

On Combining Static, Dynamic and Interactive Analysis Security Testing Tools to Improve OWASP Top Ten Security Vulnerability Detection in Web Applications

  • Francesc Mateo Tudela,
  • Juan-Ramón Bermejo Higuera,
  • Javier Bermejo Higuera,
  • Juan-Antonio Sicilia Montalvo and
  • Michael I. Argyros

20 December 2020

The design of the techniques and algorithms used by the static, dynamic and interactive security testing tools differ. Therefore, each tool detects to a greater or lesser extent each type of vulnerability for which they are designed for. In addition,...

  • Article
  • Open Access
2 Citations
3,808 Views
9 Pages

20 December 2020

GPGPU (General-Purpose Graphics Processing Unit) consists of hardware resources that can execute tens of thousands of threads simultaneously. However, in reality, the parallelism is limited as resource allocation is performed by the base unit called...

  • Article
  • Open Access
4 Citations
2,708 Views
18 Pages

20 December 2020

Diffuse optical tomography (DOT) is an emerging modality that reconstructs the optical properties in a highly scattering medium from measured boundary data. One way to solve DOT and recover the quantities of interest is by an inverse problem approach...

  • Article
  • Open Access
13 Citations
8,838 Views
14 Pages

Antimicrobial Air Filter Coating with Plant Extracts Against Airborne Microbes

  • Ha Ram Byun,
  • Seon Young Park,
  • Ee Taek Hwang,
  • Byoung In Sang,
  • Jiho Min,
  • Daekyung Sung,
  • Won Il Choi,
  • Sunghyun Kim and
  • Jin Hyung Lee

20 December 2020

Antimicrobial air filters are required to protect humans from the risk of secondary bioaerosol pollution as well as airborne particles. Three plant extracts (tea-tree oil, rosemary, and garlic) were selected to replace antimicrobial chemicals in air...

  • Article
  • Open Access
18 Citations
3,058 Views
12 Pages

Model of User Data Analysis Complex for the Management of Diverse Web Projects during Crises

  • Solomiia Fedushko,
  • Oleg Mastykash,
  • Yuriy Syerov and
  • Tomas Peracek

20 December 2020

This article discusses the relevant task of analyzing user data in the process of managing various web projects. The results of this analysis will help to improve the management of diverse web projects during crises. The authors explore the concept o...

  • Article
  • Open Access
5 Citations
4,436 Views
18 Pages

19 December 2020

In the existing automobile manufacturing process, metal inert gas (MIG) and tungsten inert gas (TIG) welding are mainly used. These welding methods are fusion welding, and the heat input in the welding area is very high. Therefore, the deformation of...

  • Feature Paper
  • Article
  • Open Access
10 Citations
2,897 Views
11 Pages

19 December 2020

Electrochemical corrosion of thermo-mechanically processed (TMP) and recrystallized Fe−30Mn−5Al−0.5C twinning-induced plasticity (TWIP) steels containing 30 wt.% Mn was studied in a 1.0 wt.% NaCl electrolyte solution. The alkaline n...

of 8

XFacebookLinkedIn
Appl. Sci. - ISSN 2076-3417