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Open AccessArticle
6 Pages, 568 KB Download PDF

Follow-up and Diagnose COVID-19 Using Deep Learning Technique

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 971–976, 2021; DOI: 10.25046/aj0602111
Abstract:

In recent days, the fast growth of populations leading to an increase in medically complicated cases, especially fast spread viral cases around the world. These phenomena increased demand on auto-diagnose systems to speed up the diagnosis process and reduce human contacts, especially for the COVID-19 pandemic using deep learning (DL). DL methods can successfully carry…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
6 Pages, 1,480 KB Download PDF

Coronal Spinal Postural Alignment Screening Tool using Markerless Digital Photography

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 965–970, 2021; DOI: 10.25046/aj0602110
Abstract:

Early detection and proper management of adult degenerative scoliosis (ADS) are important for health promotion. This study aims to develop an ADS screening tool from markerless digital photography and verify its reliability. The study included 17 participants. Outer canthus–horizontal angle (OHA) and trapezius–horizontal angle (THA) were calculated from the image of the upper body of…

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(This article belongs to Section Imaging Science & Photographic Technology (IPT))
Open AccessArticle
7 Pages, 1,010 KB Download PDF

Observer-Based Method of Feature Extraction for the Fault Detection of Permanent Magnet Synchronous Motors

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 942–948, 2021; DOI: 10.25046/aj0602107
Abstract:

This paper presents a new observer-based method which deals with the extraction of amplitude of characteristic frequencies for the fault diagnosis in permanent magnet synchronous motors (PMSM). First, a pilot survey is made to investigate the typical harmonics in the line currents of PMSM. Second, an appropriate structure of observer is formulated with the input…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
13 Pages, 1,113 KB Download PDF

Assessment of Electricity Industries in SADC Region Energy Diversification and Sustainability

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 894–906, 2021; DOI: 10.25046/aj0602102
Abstract:

Before the COVID-19 crisis, the Southern African Developing Countries (SADC) had a varied energy mix including renewable energy, fossil fuels, and military energy production. The use of fossil fuels in the energy mix is known to be the source of the growing levels of greenhouse gases in the atmosphere. However, there was a reduction in…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Green & Sustainable Science & Technology (GSS))
Open AccessArticle
9 Pages, 1,076 KB Download PDF

A Study of Stirling Engine Efficiency Combined with Solar Energy

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 837–845, 2021; DOI: 10.25046/aj060297
Abstract:

Fossil fuel can no longer supply the constantly spiking demands of energy around the world, hence the increasing research on renewable energies as an alternative. The Stirling Engine is an external combustion engine, giving us a wide range of heat sources: solar, nuclear. The Stirling engine makes best of use of solar sources in an…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Energy & Fuels (ENF))
Open AccessArticle
11 Pages, 15,641 KB Download PDF

Advanced Multiple Linear Regression Based Dark Channel Prior Applied on Dehazing Image and Generating Synthetic Haze

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 790–800, 2021; DOI: 10.25046/aj060291
Abstract:

Haze removal is an extremely challenging task, and object detection in the hazy environment has recently gained much attention due to the popularity of autonomous driving and traffic surveillance. In this work, the authors propose a multiple linear regression haze removal model based on a widely adopted dehazing algorithm named Dark Channel Prior. Training this…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 1,099 KB Download PDF

Actual Traffic Based Load-Aware Dynamic Point Selection for LTE-Advanced System

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 776–783, 2021; DOI: 10.25046/aj060289
Abstract:

Coordinated MultiPoint (CoMP) has been introduced for LTE-Advanced system to overcome the inter-cell interference problems and enhance the signal quality of cell-edge UEs (User Equipments). With such concept, the overall system performance should be improved considerably to support the significantly increasing amount of demand on data transmission via mobile communication that happens nowadays. Dynamic Point…

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(This article belongs to the isaect-20 (Special Issue on Advanced Electrical and Communication Technologies 2020) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
13 Pages, 911 KB Download PDF

Frequency Scaling for High Performance of Low-End Pipelined Processors

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 763–775, 2021; DOI: 10.25046/aj060288
Abstract:

In the Internet of Things era it is expected that low-end processor domination of the embedded market will be further reaffirmed. Then, a question will arise, on whether it is possible to enhance performance of such processors without the cost of high-end architectures. In this work we propose a better-than-worst-case (BTWC) methodology which enables the…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Electronic Engineering (EEE))
Open AccessArticle
7 Pages, 848 KB Download PDF

Node-Node Data Exchange in IoT Devices Using Twofish and DHE

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 622–628, 2021; DOI: 10.25046/aj060271
Abstract:

Internet of Things provides the support for devices, people and things to collaborate in collecting, analyzing and sharing sensitive information from one device onto the other through the internet. The internet of things is thriving largely due to access, connectivity, artificial intelligence and machine learning approaches that it supports. The stability and enhanced speed of…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
9 Pages, 973 KB Download PDF

A Framework for the Alignment of ICT with Green IT

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 593–601, 2021; DOI: 10.25046/aj060268
Abstract:

The Public Administration is forced to transform itself by taking advantage of the contribution of ICT to in the process of reducing bureaucracy and increase transparency, promoting the dematerialization of processes, increasing the quality of online services, allowing greater ubiquity of access, reducing response times, in the search for improvement of the quality of life…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
5 Pages, 796 KB Download PDF

Recycling and Reuse of Wastewater Generated in Car-Washing Facilities

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 521–525, 2021; DOI: 10.25046/aj060259
Abstract:

Fresh water is already scarce in the world, especially in the Middle East (ME). Desalination industry is the main supplier of the potable water to the municipalities in the ME region. It is well known the high cost of a liter of water produced by the desalination process. Unfortunately, car-washing service consumes substantial amount of…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Green & Sustainable Science & Technology (GSS))
Open AccessArticle
9 Pages, 983 KB Download PDF

Practical Simulation of Grounded/Floating Lossy Inductors Based on Commercially Available Integrated Circuit LT1228

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 512–520, 2021; DOI: 10.25046/aj060258
Abstract:

The article suggests four circuit topologies for the practical simulation of grounded and floating lossy inductors. All the suggested circuits use commercially available integrated circuit LT1228 chips as active elements, and only two passive elements, namely one resistor and one capacitor. The first two of the proposed circuits employ only a single LT1228 active element…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Electronic Engineering (EEE))
Open AccessArticle
13 Pages, 931 KB Download PDF

Open Access Research Trends in Higher Education: A Literature Review

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 499–511, 2021; DOI: 10.25046/aj060257
Abstract:

This study is a review of the literature on open access (OA), seeking to identify trends in research on the subject. This review was conducted in the SCOPUS database and focused on the following as the main topics: 1. Financial aspects, 2. Repositories, 3. Education, 4. Academic community’s perception of OA resources, 5. Tools, 6.…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 662 KB Download PDF

Teaching/Learning Strategies in Context of Education 4.0

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 472–479, 2021; DOI: 10.25046/aj060254
Abstract:

Coronavirus pandemic and transition to distance learning have significantly accelerated the introduction of Education 3.0 – 4.0 technologies into traditional educational process. This paper discusses questions of training of IT- specialists in context of Education 4.0. Based on our experience, approaches to the organization of the educational process of IT- students are considered. It is…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 1,100 KB Download PDF

Architecture of Real-Time Patient Health Monitoring Based on 5G Technologies

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 351–358, 2021; DOI: 10.25046/aj060240
Abstract:

Worldwide, the epidemiological situation is constantly changing and with the exponential increase in the number of confirmed coronavirus cases, the number of health care workers has decreased significantly and this is due to the direct and daily contact of patients. One of the major challenges of the last few months is to prevent the spread…

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(This article belongs to Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
11 Pages, 1,067 KB Download PDF

A Grounded Theory Approach to Digital Transformation in the Postal Sector in Southern Africa

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 313–323, 2021; DOI: 10.25046/aj060236
Abstract:

This paper describes a qualitative research design adopted in this study guided by deployment of a Grounded Theory (GT) methodology which was deployed to synthesize literature on technology adoption and digital transformation with an objective of developing theory. The philosophical worldview adopted was interpretivism/constructivist of a qualitative grounded theory inductive (theory building) approach where secondary…

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(This article belongs to Section Engineering Management (EMM))
Open AccessArticle
9 Pages, 984 KB Download PDF

Designing and Implementation of an Intelligent Energy Management System for Electric Ship power system based on Adaptive Neuro-Fuzzy Inference System (ANFIS)

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 195–203, 2021; DOI: 10.25046/aj060223
Abstract:

Artificial Intelligence (AI) is a promising trend in ship energy management systems (EMS). The motivations of this work are designing and implementation of an intelligent energy management system for ship’s electric power system based on an adaptive Neuro-Fuzzy Inference System (ANFIS) and the ship power source is an environmental friend system consists of proton exchange…

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(This article belongs to Section Energy & Fuels (ENF))
Open AccessArticle
7 Pages, 776 KB Download PDF

Multi-Objective Design of Current Conveyor using Optimization Algorithms

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 154–160, 2021; DOI: 10.25046/aj060218
Abstract:

The design of microelectronic systems is often complex, therefore metaheuristics can be of a great interest, because in most cases these systems have conflicting objectives and constraints. In this paper, we demonstrate the application of multi-criteria design strategies to a CMOS current conveyor. This provides designers with the ability to develop solutions that can meet…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
14 Pages, 872 KB Download PDF

Challenges in IoT Technology Adoption into Information System Security Management of Smart Cities: A Review

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 99–112, 2021; DOI: 10.25046/aj060213
Abstract:

Sustainable urban development and utilization of Internet of Things (IoT) technology is driving cities globally to evolve into Smart Cities (SC). The power of IoT services and applications will enable public agencies to provide personalized services to the citizens and inevitably improves their much-needed quality of life. However, although the use of IoT technology proves…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
11 Pages, 773 KB Download PDF

How Ready is Renewable Energy? A Review Paper on Educational Materials and Reports Available for the Teaching of Hydrogen Fuel Cells in Schools

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 01–11, 2021; DOI: 10.25046/aj060201
Abstract:

Today, the costs of most Renewable Energy (RE) technologies especially hydrogen energy technologies such as fuel cells, are still beyond the means of poorer economies in developing countries. Hence, there is little public awareness and local expertise in RE in these countries and even lesser in hydrogen energy. To solve this problem, it is important…

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(This article belongs to the isaect-18 (Special Issue on Advanced Electrical and Communication Technologies 2019) & Section Green & Sustainable Science & Technology (GSS))
Open AccessArticle
19 Pages, 4,104 KB Download PDF

BrcLightning – Risk Analysis and Scaling for Protection against Atmospheric Discharge – Extender

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 1, Page # 1384–1402, 2021; DOI: 10.25046/aj0601158
Abstract:

This manuscript intending to publicize the improvements incorporated in the BrcLightning application, including the Risk Analysis module with the help of a pop-up, which provides the result and assists in the identification of mitigating measures by the professional, which must be defined to reduce the calculated risks. Other points addressed in this extension are the…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Electrical Engineering (ELE))
Open AccessArticle
7 Pages, 821 KB Download PDF

Evaluation of Personal Solar UV Exposure in a Group of Italian Dockworkers and Fishermen, and Assessment of Changes in Sun Protection Behaviours After a Sun-Safety Training

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 1, Page # 1312–1318, 2021; DOI: 10.25046/aj0601150
Abstract:

Solar ultraviolet radiation (UVR) is considered a relevant health risk for the workers of the maritime and port sectors, but scant data are available on actual exposure measured using personal dosimeters. Moreover, in outdoor workers sun protection habits are usually poor, while some promising data suggest that sun-safety campaigns can be effective in increasing self-protection…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
12 Pages, 1,314 KB Download PDF

Improved Fuzzy Time Series Forecasting Model Based on Optimal Lengths of Intervals Using Hedge Algebras and Particle Swarm Optimization

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 1, Page # 1286–1297, 2021; DOI: 10.25046/aj0601147
Abstract:

Recently, numerous scholars have suggested fuzzy time series (FTS) models to forecast many different fields. One of the vital issues for high accurate forecasting in FTS model is method of partitioning in Universe of discourse (UoD). In this research, we propose a novel FTS model, which is established by using hedge algebra (HA) and particle…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
12 Pages, 1,792 KB Download PDF

Wireless Sensor Networks Simulation Model to Compute Verification Time in Terms of Groups for Massive Crowd

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 1, Page # 1229–1240, 2021; DOI: 10.25046/aj0601140
Abstract:

Everyone needs fast response or output against its request or need. Therefore, technologies are used to make the processing fast and accurate according to our needs. But in some situations, still we need to do more. Especially, when we need to process a massive or huge crowd of people in limited time frame such as…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
8 Pages, 751 KB Download PDF

Artificial Neural Network Approach using Mobile Agent for Localization in Wireless Sensor Networks

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 1, Page # 1137–1144, 2021; DOI: 10.25046/aj0601127
Abstract:

Wireless sensor networks (WSNs) are having large demands in enormous applications for the decade. The main issue in WSNs is estimating the exact location of unknown nodes. All applications are dependent on the location information of unknown nodes in WSNs. Location information of mobile anchor node is used to estimate the location of unknown nodes.…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Electrical Engineering (ELE))
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