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Open AccessArticle
21 Pages, 10,607 KB Download PDF

Power Management and Control of a Grid-Connected PV/Battery Hybrid Renewable Energy System

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 2, Page # 32–52, 2022; DOI: 10.25046/aj070204
Abstract:

This paper presents novel Energy Management Strategies (EMSs), and the control of a Grid-Connected Hybrid Renewable Energy System (GCHRES). The GCHRES describes a Photovoltaic Generator (PVG) and a Battery-Based Storage System. Both are tied to the Common Coupling Point (CCP) through a reversible three-phase inverter. The CCP combines the Utility Grid (UG) and an AC…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
17 Pages, 1,520 KB Download PDF

Automated Hydroponic System using Wireless Sensor Networks

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 2, Page # 1–17, 2022; DOI: 10.25046/aj070201
Abstract:

Researchers have associated agriculture and food processing with adverse environmental impacts like; falls in the underground freshwater table, energy consumption, and high carbon emission. These factors have the worst effect on developing countries. Therefore, there is a need for on-demand food production techniques that require minimum resource utilization. For these reasons, scientists are now focusing…

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(This article belongs to Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
7 Pages, 1,060 KB Download PDF

Optimization of the Sliding Mode Control (SMC) with the Particle Swarm Optimization (PSO) Algorithm for Photovoltaic Systems Based on MPPT

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 1, Page # 100–106, 2022; DOI: 10.25046/aj070110
Abstract:

Photovoltaic systems are classified as non-linear systems. On the other hand, the characteristics of photovoltaic cells are non-linear. For this reason, researchers use several methods of maximum power monitoring (MPPT) to improve the performance of photovoltaic system. It is therefore necessary to use an adaptation stage between the photovoltaic generator (GPV) and the load to…

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(This article belongs to Section Automation & Control Systems (ACS))
Open AccessArticle
19 Pages, 8,031 KB Download PDF

Thermoelectric Generators (TEGs) and Thermoelectric Coolers (TECs) Modeling and Optimal Operation Points Investigation

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 1, Page # 60–78, 2022; DOI: 10.25046/aj070107
Abstract:

Sustainable energy is gradually becoming the norm today due to greenhouse warming effects; as a result, the quests for different renewable energy sources such as photovoltaic cells as well as energy efficient electrical appliances are becoming popular. Therefore, this article explores the alternative energy case for thermoelectricity with focus on the steady-state mathematics, mixed modelings…

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(This article belongs to the SP12 (Special Issue on Multidisciplinary Sciences and Engineering 2021-22) & Section Thermodynamics (THD))
Open AccessArticle
13 Pages, 2,992 KB Download PDF

Value Trace Problems for Code Reading Study in C Programming

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 1, Page # 14–26, 2022; DOI: 10.25046/aj070103
Abstract:

C programming is taught in a lot of universities across the world as the first computer programming language. Then, for novice students, it is important to read many simple C source codes and understand their behaviors to be familiar to the programming paradigm. Unfortunately, effective tools to support independent code reading study at home have…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Theory & Methods in Computer Science (CTM))
Open AccessArticle
7 Pages, 857 KB Download PDF

Self-Regulated Learning and Academic Achievement of Physics Students in Selected Secondary Schools in Aguata Local Government Area of Anambra State, Nigeria

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 1, Page # 1–7, 2022; DOI: 10.25046/aj070101
Abstract:

The research investigated the consequence of self-regulated learning on students’ academic performance in physics, using selected public co-education schools in Aguata Educational Zone, Anambra State as the research area. The study became necessary as a result of the observed persistent poor performance of the student in Physics in external examinations over the years. The study…

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(This article belongs to Section Applied Physics (PAP))
Open AccessArticle
11 Pages, 802 KB Download PDF

Antecedents to Learners’ Satisfaction with Serious Games: An Investigation Using Partial Least Square

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 43–53, 2021; DOI: 10.25046/aj060607
Abstract:

Serious games are at the forefront of discussions about the future of learning. Research shows that they can help improve student motivation and knowledge transfer by making learning experiences more pleasurable. Teaching practices are increasingly enhanced or complemented by serious games; skills and knowledge are developed by recreating realistic situations allowing learners to enhance their…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
5 Pages, 718 KB Download PDF

Light Modulation Enhancement by using an Impedance Matching Scheme for a Subcarrier Multiplexed Light Transmitter

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 07–11, 2021; DOI: 10.25046/aj060602
Abstract:

We propose and analyze new impedance matching schemes to enhance applied voltage to an optical modulator and light modulation for a subcarrier multiplexed light transmitter or a radio-on-fiber transmitter that carries radio-frequency signal through an optical fiber. Our proposal includes two methods using a quarter-wavelength impedance transformer and a tapered microstrip line for impedance matching…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Electronic Engineering (EEE))
Open AccessArticle
8 Pages, 732 KB Download PDF

Neural Network for 2D Range Scanner Navigation System

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 348–355, 2021; DOI: 10.25046/aj060539
Abstract:

Navigation of a moving object (drone, vehicle, robot, and so on) and related localization in unknown scenes is nowadays a challenging subject to be addressed. Typically, different source devices, such as image sensor, Inertial Measurement Unit (IMU), Time of Flight (TOF), or a combination of them can be used to reach this goal. Recently, due…

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(This article belongs to the SP12 (Special Issue on Multidisciplinary Sciences and Engineering 2021-22) & Section Instruments & Instrumentation (IIN))
Open AccessArticle
5 Pages, 751 KB Download PDF

Enhancing Decision Trees for Data Stream Mining

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 330–334, 2021; DOI: 10.25046/aj060537
Abstract:

Data stream gained obvious attention by research for years. Mining this type of data generates special challenges because of their unusual nature. Data streams flows are continuous, infinite and with unbounded size. Because of its accuracy, decision tree is one of the most common methods in classifying data streams. The aim of classification is to…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
7 Pages, 632 KB Download PDF

TETRA™ Techniques to Assess and Manage the Software Technical Debt

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 303–309, 2021; DOI: 10.25046/aj060534
Abstract:

The paper examines the company’s proprietary means for determining the quality of a software product and measuring its technical debt. The paper’s authors explain how a software product’s quality is directly correlated with the amount of varying technical debts that the end-users receive. All debts can be paid, and technical debt is no exception: one…

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(This article belongs to Section Automation & Control Systems (ACS))
Open AccessArticle
6 Pages, 965 KB Download PDF

Ensemble Learning of Deep URL Features based on Convolutional Neural Network for Phishing Attack Detection

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 291–296, 2021; DOI: 10.25046/aj060532
Abstract:

The deep learning-based URL classification approach using massive observations has been verified especially in the field of phishing attack detection. Various improvements have been achieved through the modeling of character and word sequence of URL based on convolutional and recurrent neural networks, and it has been proven that an ensemble approach of each model has…

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(This article belongs to the SP12 (Special Issue on Multidisciplinary Sciences and Engineering 2021-22) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
11 Pages, 690 KB Download PDF

A Task-based Paradigm for Promoting an Alternative Thinking Style in Teaching Mathematics

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 249–259, 2021; DOI: 10.25046/aj060527
Abstract:

The article identifies an alternative style of thinking as one of the important components of human intellectual development. It is shown that it can be effectively implemented in mathematics lessons at school. The purpose of this study is to develop and substantiate a strategy for the formation of an alternative style of thinking among students…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Education (EDU))
Open AccessArticle
10 Pages, 942 KB Download PDF

Extraction of Psychological Symptoms and Instantaneous Respiratory Frequency as Indicators of Internet Addiction Using Rule-Based Machine Learning

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 203–212, 2021; DOI: 10.25046/aj060522
Abstract:

Internet addiction (IA) has adverse effects on psychophysiological responses, interpersonal relationships, and academic and occupational performance. IA detection has received increasing attention. Although questionnaires enable long-term assessment (over 6 months) and physiological measurements to aid the short-term evaluation (over 2 min) of IA, the lack of algorithms results in an inability to detect IA in…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Psychiatry (PSY))
Open AccessArticle
18 Pages, 2,108 KB Download PDF

iDRP Framework: An Intelligent Malware Exploration Framework for Big Data and Internet of Things (IoT) Ecosystem

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 185–202, 2021; DOI: 10.25046/aj060521
Abstract:

The Internet of Things (IoT) is at a face paced growth in the advanced Industrial Revolution (IR) 4.0 in the modern digital world. Considering the current network security challenges and sophistication of attacks in the heavily computerized and interconnected systems, such as an IoT ecosystem, the need for an innovative, robust, intelligent and adaptive malware…

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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
10 Pages, 1,135 KB Download PDF

Acoustic Scene Classifier Based on Gaussian Mixture Model in the Concept Drift Situation

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 167–176, 2021; DOI: 10.25046/aj060519
Abstract:

The data distribution used in model training is assumed to be similar with that when the model is applied. However, in some applications, data distributions may change over time. This situation is called the concept drift, which might decrease the model performance because the model is trained and evaluated in different distributions. To solve this…

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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, 997 KB Download PDF

Coupled Apodization Functions Applied to Enhance Image Quality in Ultrasound Imaging using Phased Arrays

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 149–157, 2021; DOI: 10.25046/aj060517
Abstract:

The remarkable presence of side lobes levels in ultrasound B-mode imaging significantly decreases the image quality. Therefore, the use of an apodization function is of great importance. Linear windowing functions are among the most efficient techniques used to optimize antenna directivity by suppression of the side lobes. However, the apodization causes the degradation of lateral…

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(This article belongs to Section Biomedical Engineering (EBI))
Open AccessArticle
11 Pages, 1,735 KB Download PDF

Emotion Mining from Speech in Collaborative Learning

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 90–100, 2021; DOI: 10.25046/aj060512
Abstract:

Affective states, a dimension of attitude, have a critical role in the learning process. In the educational setting, affective states are commonly captured by self-report tools or based on sentiment analysis on asynchronous textual chats, discussions, or students’ journals. Drawbacks of such tools include: distracting the learning process, demanding time and commitment from students to…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
7 Pages, 1,354 KB Download PDF

The Effect of Myocardial Fat’s Thickness and Myocardial Impedance on Bipolar Radiofrequency Catheter Ablation Using Computer Simulation

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 83–89, 2021; DOI: 10.25046/aj060511
Abstract:

Radiofrequency catheter ablation is routinely used for the therapy of cardiac arrhythmias. Compared with the traditional unipolar ablation, bipolar ablation may improve the controllability of treatment, and prevent side effects and complications caused by catheter ablation. In addition, the variations of myocardial fat’s thickness and myocardial impedance may have significant influence on the performance of…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Biomedical Engineering (EBI))
Open AccessArticle
10 Pages, 2,558 KB Download PDF

Analysis of Grid Events Influenced by Different Levels of Renewable Integration on Extra-large Power Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 43–52, 2021; DOI: 10.25046/aj060506
Abstract:

In this work, the impact of implementing a large amount of decentralized renewable energy sources (RES) of different scales on an extra-large power grid is investigated. Three scenarios are created, substituting 10%, 20%, and 30% of the conventional energy production by RES. For this purpose, the initial dynamic model of Continental Europe in combination with…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Electrical Engineering (ELE))
Open AccessReview
7 Pages, 200 KB Download PDF

Traditional and Deep Learning Approaches for Sentiment Analysis: A Survey

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 01–07, 2021; DOI: 10.25046/aj060501
Abstract:

Presently, individuals generate tremendous volumes of information on the internet. As a result, sentiment analysis is a critical tool for automating a deep understanding of user-generated information. Of late, deep learning algorithms have shown endless promises for a variety of sentiment analysis. The purpose of sentiment analysis is to categorize different descriptions as good, bad,…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
8 Pages, 1,676 KB Download PDF

A Design of Anthropomorphic Hand based on Human Finger Anatomy

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 4, Page # 431–438, 2021; DOI: 10.25046/aj060448
Abstract:

In the past decade, multiple anthropomorphic prosthetic hands have been developed to replace the role of human hands. Prostheses should not only replace the functions of human hands in functionality but also replicate human hands in appearance and sense of body-belonging intuitively. Human fingers have very delicate and complex structures, and it is these complex…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Biomedical Engineering (EBI))
Open AccessArticle
5 Pages, 778 KB Download PDF

Quantum Secure Lightweight Cryptography with Quantum Permutation Pad

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 4, Page # 401–405, 2021; DOI: 10.25046/aj060445
Abstract:

Quantum logic gates represent certain quantum operations to perform quantum computations. Of those quantum gates, there is a category of classical behavior gates called quantum permutation gates. As a quantum algorithm, quantum permutation pad or QPP consists of multiple quantum permutation gates to be implemented both in a quantum computing system as a quantum circuit…

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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
10 Pages, 1,243 KB Download PDF

A Scheduling Algorithm with RTiK+ for MIL-STD-1553B Based on Windows for Real-Time Operation System

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 4, Page # 385–394, 2021; DOI: 10.25046/aj060443
Abstract:

In devices using Windows operating system based on x86 system, the real-time performance is not guaranteed by Windows. It is because Windows is not a real-time operating system. Users who develop applications in such a Windows environment generally use commercial solutions such as the RTX or the INtime to provide real-time performance to the system.…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
9 Pages, 1,110 KB Download PDF

Automated Agriculture Commodity Price Prediction System with Machine Learning Techniques

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 4, Page # 376–384, 2021; DOI: 10.25046/aj060442
Abstract:

The intention of this research is to study and design an automated agriculture commodity price prediction system with novel machine learning techniques. Due to the increasing large amounts historical data of agricultural commodity prices and the need of performing accurate prediction of price fluctuations, the solution has largely shifted from statistical methods to machine learning…

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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))
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