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Open AccessArticle
7 Pages, 1,305 KB Download PDF

Use of Unmanned Aerial Vehicles in Aircraft Inspection

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 182–188, 2021; DOI: 10.25046/aj060321
Abstract:

The article further extends the researched issue of the unmanned aircraft use in the pre-flight and post-flight visual check of aircraft. Procedures of pre-flight inspection are fulfilled by the aircraft maintenance certified staff or the crew member before flight. The process is similar for all categories of aircraft, but its implementation differs for individual specific…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Aerospace Engineering (EAR))
Open AccessArticle
10 Pages, 1,764 KB Download PDF

Activity-Based Cost Estimation Model for The Extrusion of Variant Aluminum Profiles

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 172–181, 2021; DOI: 10.25046/aj060320
Abstract:

A competitive manufacturing environment dictates to be conscious of the real cost of production to increase profitability, to have a precise cost estimation, and to avoid cost distortion. Activity-Based Costing (ABC) is one choice to achieve these objectives. This paper aims to build an ABC method, consequently, to explore its application for a local Aluminum…

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(This article belongs to Section Industrial Engineering (EID))
Open AccessArticle
8 Pages, 1,212 KB Download PDF

Hiding Information in DNA Sequence Data using Open Reading Frame Guided Splicing

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 164–171, 2021; DOI: 10.25046/aj060319
Abstract:

Encouraged by the huge publicly available genomic databases, research in the field of steganography was recently extended to utilize DNA sequence data to conceal secret information. As an extension of the work presented earlier by the author, this paper proposes an approach for a secure data communication channel between two parties. At one side of…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
6 Pages, 745 KB Download PDF

Peculiar Stray Gassing Occurrences in Solar Photovoltaic Transformers during Service

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 131–136, 2021; DOI: 10.25046/aj060315
Abstract:

Distributed Solar Photovoltaic (DSP) Plants are one of the fastest growing renewable energy systems in South Africa. The primary components forming an integral part of the point of common coupling (PCC) are, the inverter used to convert dc voltage to ac voltage and step-up transformers which step-up low voltage input to the desired output level.…

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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
5 Pages, 781 KB Download PDF

A Novel Approach for Estimating the Service Lifetime of Transformers within Distributed Solar Photovoltaic (DSPV) Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 126–130, 2021; DOI: 10.25046/aj060314
Abstract:

The rapid transformation of the energy sector in South Africa towards renewable energy (RE) production calls for the management of assets to keep pace with the ongoing developments in a reliable manner. Aging assets, increasing energy needs and reliable supply of energy without load shedding are some of the challenges utilities are facing in South…

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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, 758 KB Download PDF

Integration Information Systems Design of Material Planning in the Manufacturing Industry using Service Oriented Architecture

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 100–106, 2021; DOI: 10.25046/aj060311
Abstract:

PT XYZ has an Enterprise Resource Planning application that is used by the Planning Department to view stocks and plan production materials. Currently calculation of production materials takes more than 30 seconds just to export to Excel then a few minutes to adjust the data format to the planning form and the data used is…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
8 Pages, 776 KB Download PDF

Real Time and Post-Processing Flight Inspection by Drone: A Review

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 92–99, 2021; DOI: 10.25046/aj060310
Abstract:

Air Navigation Aids (NAVAIDs) whether implemented on the ground or in space and the Precision Approach Path Indicator (PAPI) system need to be checked in flight to ensure compliance with the standards set by International Civil Aviation Organization (ICAO). This activity has been carried out for decades by conventional aircraft and is usually done at…

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(This article belongs to Section Telecommunications (TEL))
Open AccessArticle
8 Pages, 1,091 KB Download PDF

SLIP-SL: Walking Control Based on an Extended SLIP Model with Swing Leg Dynamics

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 84–91, 2021; DOI: 10.25046/aj060309
Abstract:

This paper details an extension to the SLIP model named spring-loaded inverted pendulum model with swing legs (SLIP-SL). SLIP-SL extends the SLIP model by introducing swing leg dynamics while keeping its passive nature. This way, reference trajectories for the center of mass and swing foot trajectories can be simultaneously obtained which was not possible with…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Robotics (ROB))
Open AccessArticle
5 Pages, 625 KB Download PDF

Mechanical Characterization of Recycled Aggregates Concrete Based on its Compressive Strength

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 35–39, 2021; DOI: 10.25046/aj060305
Abstract:

The construction industry has undergone several changes in recent years linked to new laws and international conventions aimed at protecting the environment and combating pollution. Construction industry alone produces tons of waste annually due to debris produced either during construction or during deconstruction. To combat this, companies are forced to control their debris either by…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Construction & Building Technology (CBT))
Open AccessArticle
8 Pages, 898 KB Download PDF

Electroencephalogram Based Medical Biometrics using Machine Learning: Assessment of Different Color Stimuli

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 27–34, 2021; DOI: 10.25046/aj060304
Abstract:

A methodology of medical signal-based biometrics has been proposed in this paper for implementing a human identification system controlled by electroencephalogram in respect of different color stimuli. The advantage of biosignal based biometrics is that they provide more efficient operation in simple experimental condition to ensure accurate identification. Red, Green, Blue (primary colors) and Yellow…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Biomedical Engineering (EBI))
Open AccessArticle
12 Pages, 1,415 KB Download PDF

Environmental Acoustics Modelling Techniques for Forest Monitoring

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 15–26, 2021; DOI: 10.25046/aj060303
Abstract:

Environmental sounds detection plays an increasing role in computer science and robotics as it simulates the human faculty of hearing. It is applied in environment research, monitoring and protection, by allowing investigation of natural reserves, and showing potential risks of damage that can be deduced from the environmental acoustic. The research presented in this paper…

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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
8 Pages, 906 KB Download PDF

Development of Electric Power Availability Recorder for Accurate Energy Billing of Unmetered Facilities

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 7–14, 2021; DOI: 10.25046/aj060302
Abstract:

The design, fabrication and testing of a power availability recorder (PAR) to track the duration of electricity supply in facilities is presented. The design was executed with C-Language encoded in a microcontroller which served as the central processing unit of the device. Proteus software was, subsequently, used to simulate the real-life practicability of the device…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
6 Pages, 652 KB Download PDF

The Implementation of Straw Mulch Experiments to Increase Tomato (Lycopersicum esculentum Mill.) Production in Horticulture Learning

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 1–6, 2021; DOI: 10.25046/aj060301
Abstract:

The increasingly rapid development of science and technology, as well as the influence of globalization has contributed to updates in educational so that one method taken by apply experiments in horticulture learning activities. This study aims to determine the effect of rice straw mulch on tomato production and the effectiveness of the implementation of this…

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(This article belongs to Section Biology (BIO))
Open AccessArticle
7 Pages, 1,074 KB Download PDF

Supporting the Management of Predictive Analytics Projects in a Decision-Making Center using Process Mining

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 1084–1090, 2021; DOI: 10.25046/aj0602123
Abstract:

A Decision-Making Centers (DMCs) Environment facilitates stakeholders’ decision-making processes using predictive models and diverse what-if scenarios. An essential element of this environment is the management of Decision Support Components (e.g., models or systems) that need to be created with mature methodologies and good delivery time. However, there has been a gap in the understanding 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
10 Pages, 737 KB Download PDF

Synthesis of CVs Using a Context-free Grammar

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 1074–1083, 2021; DOI: 10.25046/aj0602122
Abstract:

To get hired, an aspiring candidate needs a good CV/r´esum´e. This is not an easy task as it must be readable, well structured, concise with no grammatical errors, and containing all relevant information needed by employers. In this paper, we present a newly designed context-free grammar for the dynamic synthesis of a CV. The grammar…

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(This article belongs to the SP9 (Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
9 Pages, 668 KB Download PDF

A Critical Analysis of the Integrated Industry Waste Tyre Management Plan of South Africa

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 1046–1054, 2021; DOI: 10.25046/aj0602119
Abstract:

Municipal general waste accumulation including the general waste category of end-of-life tyres has become a universal predicament especially in the majority of first world countries as well as in the third world countries. South Africa is recognized for its economic growth and improved living standards of people which has led to the increased accumulation rates…

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(This article belongs to Section Chemical Engineering (ENC))
Open AccessArticle
8 Pages, 1,200 KB Download PDF

Closed Loop Capacitive Accelerometer Model using Simple Regression Test for Linearity

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 1038–1045, 2021; DOI: 10.25046/aj0602118
Abstract:

This article extends novelty of modeling capacitive accelerometer with PID controller to provide PI controller for better tuning and statistical test to determine the linear validation characteristics of closed capacitive accelerometer. Capacitive accelerometer is a sensor which uses the dynamic law of physics model Position-Velocity-Accelerator (PVA) by the movement of an electrode coupled to mass…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Automation & Control Systems (ACS))
Open AccessArticle
16 Pages, 2,508 KB Download PDF

A Review of Plastic Waste Management Practices: What Can South Africa Learn?

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 1013–1028, 2021; DOI: 10.25046/aj0602116
Abstract:

Municipal Solid Waste (MSW) is composed of items that are discarded or disposed of daily including paper, plastics, glass, metals, used gadgets, paint and old furniture. The plastic waste stream has proven to be problematic to manage sustainably on a global scale. Various researchers are trying to come up with innovative ways of alleviating the…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Environmental Sciences (ENS))
Open AccessArticle
11 Pages, 898 KB Download PDF

Assessment of the Municipal Solid Waste Transfer Stations Suitability in Harare, Zimbabwe

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 1002–1012, 2021; DOI: 10.25046/aj0602115
Abstract:

The suitability of incorporating waste transfer stations (WTS) in likely future Municipal Solid Waste Management (MSWM) systems for Harare city and neighbouring urban centres was assessed under this study. WTS will bring about location of landfills and other MSWM facilities further away from population centres, increasing recycling, reducing waste collection costs and burden on the…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Environmental Engineering (EEV))
Open AccessArticle
7 Pages, 779 KB Download PDF

Blockchain-Based Decentralized Digital Self-Sovereign Identity Wallet for Secure Transaction

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 977–983, 2021; DOI: 10.25046/aj0602112
Abstract:

Blockchain (BC) as the widespread innovations in the 21st century has recognized itself to be immutable, tamper-resistant, decentralize and secure. This emerging technology is used as a functional technology for refining present technology and forming new applications for its robustness and disintermediation. Decentralized Digital Self-Sovereign Identity (DDSSI) is an identity mapped with individual identity information…

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(This article belongs to Section Theory & Methods in Computer Science (CTM))
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
9 Pages, 878 KB Download PDF

Performance Evaluation of Convolutional Neural Networks (CNNs) And VGG on Real Time Face Recognition System

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 956–964, 2021; DOI: 10.25046/aj0602109
Abstract:

Face Recognition (FR) is considered as a heavily studied topic in computer vision field. The capability to automatically identify and authenticate human’s faces using real-time images is an important aspect in surveillance, security, and other related domains. There are separate applications that help in identifying individuals at specific locations which help in detecting intruders. The…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
7 Pages, 1,088 KB Download PDF

Numerical Analysis for Feature Extraction and Evaluation of 3D Sickness

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 949–955, 2021; DOI: 10.25046/aj0602108
Abstract:

Artificial intelligence (AI) systems have been applied not only to numerical simulations of the economical sequences but also to the bio-signal, for instance, the statokinesigrams (SKGs). According to the nonlinear analysis of the bio-signal, we have considered that the motion process of the body sway is more random than that of the other bio-signal. In…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
9 Pages, 1,860 KB Download PDF

LED Lighting and the Impact on the PLC Channel

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 933–941, 2021; DOI: 10.25046/aj0602106
Abstract:

Light Emitting Diode (LED) lamps are used as a replacement of “old-fashioned” or incandescent lighting sources, as they reduce the amount of energy consumed. As a side-effect of more efficient energy usage they produce electrical noise. This noise reduces the efficiency of information signal transfer when Power Line Communications (PLC) are used. This study focuses…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
12 Pages, 813 KB Download PDF

On the Combination of Static Analysis for Software Security Assessment – A Case Study of an Open-Source e-Government Project

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 921–932, 2021; DOI: 10.25046/aj0602105
Abstract:

Static Application Security Testing (SAST) is a popular quality assurance technique in software engineering. However, integrating SAST tools into industry-level product development and security assessment poses various technical and managerial challenges. In this work, we reported a longitudinal case study of adopting SAST as a part of a human-driven security assessment for an open-source e-government…

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(This article belongs to Section Software Engineering in Computer Science (CSE))
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