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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
10 Pages, 514 KB Download PDF

Estimation of Non-homogeneous Thermal Conductivity using Fourier Heat Equation Considering Uncertainty and Error Propagation

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 1, Page # 90–99, 2022; DOI: 10.25046/aj070109
Abstract:

The present work develops an estimator for thermal conductivity using a simple exper- iment implemented in a simulated solid metallic bar. The bar is sectioned in a finite number of segments, lately called nodes, and a discretization of the Fourier heat equation is applied in each node to generate a timed-spaced model of the temperature…

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(This article belongs to Section Thermodynamics (THD))
Open AccessArticle
11 Pages, 1,497 KB Download PDF

A Novel Algorithm Design for Locating Fault Distances on HV Transmission Lines

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 1, Page # 79–89, 2022; DOI: 10.25046/aj070108
Abstract:

The transmission network has been considered among the globe’s prevalent complex systems, comprised of hundreds of electrical transmission lines and other equipment used to transmit electrical energy from one location to another. Over a decade, power engineers have worked tirelessly to ensure that the transmission network operates reliably, transmitting electrical energy from the power station…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2021-22 & Section Electrical Engineering (ELE))
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 Special Issue on Multidisciplinary Sciences and Engineering 2021-22 & Section Thermodynamics (THD))
Open AccessReview
6 Pages, 724 KB Download PDF

Ethical Implications and Challenges in using Social Media: A Comprehensive Study

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 1, Page # 47–52, 2022; DOI: 10.25046/aj070105
Abstract:

The technological revolution penetrates every aspect of our dailylives; it changed our lives in different fields such as communication, decision-making, information access and work environment. These changes have benefits, but they also have costs. These costs include many ethical and social problems that need more investigation. The human element is the most affected part of…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
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 Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Theory & Methods in Computer Science (CTM))
Open AccessArticle
16 Pages, 2,509 KB Download PDF

Spatio-Temporal Analysis of Drought over the Guinean-Sudano Ecological Zone, Northern Nigeria

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 151–166, 2021; DOI: 10.25046/aj060620
Abstract:

Drought has become more common and severe in recent decades due to increased global changes in climatic conditions and anthropogenic activities thereby analyzing drought at both regional and local levels is crucial. And so, this study aims at assessing drought risk in Northern Nigeria using NDVI and SPI. Data used included satellite images (Landsat OLI-TIRS,…

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(This article belongs to Section Environmental Sciences (ENS))
Open AccessArticle
6 Pages, 1,136 KB Download PDF

Video Risk Detection and Localization using Bidirectional LSTM Autoencoder and Faster R-CNN

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 145–150, 2021; DOI: 10.25046/aj060619
Abstract:

This work proposes a new unsupervised learning approach to detect and locate the risks “abnormal event” in video scenes using Faster R-CNN and Bidirectional LSTM autoencoder. The approach proposed in this work is carried out in two steps: In the first step, we used a bidirectional LSTM autoencoder to detect the frames containing risks. In…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
7 Pages, 1,040 KB Download PDF

Study and Implementation of LEDs Drivers with Dimming Capability

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 130–136, 2021; DOI: 10.25046/aj060617
Abstract:

Nowadays, LED lights take an important place in our daily lives and they have known a great growth in indoor as well as in outdoor lighting applications. LED (Light Emitting Diode) light sources including their own drivers have excluded many systems fitted with both inefficient light sources. In this paper we present, a LED driver…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
7 Pages, 759 KB Download PDF

Control and Monitoring Systems in Medium Voltage Distribution Networks in Poland – Current Status and Directions of Development

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 112–118, 2021; DOI: 10.25046/aj060615
Abstract:

The paper describes the control and monitoring systems installed in medium voltage networks by Polish distribution network operators. It also outlines the expected directions of development of these systems, specifies the functions of the individual system components and describes the requirements applicable to them. In particular, attention is paid to the implementation of functions to…

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(This article belongs to Section Energy & Fuels (ENF))
Open AccessArticle
14 Pages, 2,270 KB Download PDF

Improving of Heat Spreading in a SiC Propulsion Inverter using Graphene Assembled Films

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 98–111, 2021; DOI: 10.25046/aj060614
Abstract:

The focus of this work is first to establish the effect of the chip temperature and thermal feedback on the determination of the power loss in a three-phase propulsion inverter, then to demonstrate the possibility of achieving an improved heat spreading through the different layers inside a SiC power module by using graphene assembled films…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Electronic Engineering (EEE))
Open AccessArticle
7 Pages, 1,457 KB Download PDF

Discretisation of Second Order Generalized Integrator to Design the Control Algorithm of Unified Power Quality Conditioner

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 808–814, 2021; DOI: 10.25046/aj060293
Abstract:

In this paper, second order generalized integrator (SOGI) is discretized to design the control algorithm of unified power quality conditioner (UPQC). A UPQC is combination two voltage source converter (VSC) and VSC are connected with back to back DC link. The first one VSC is in series to maintain the desire voltage at point of…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2020-21 & Section Electrical Engineering (ELE))
Open AccessArticle
10 Pages, 1,011 KB Download PDF

Innovations in Recruitment—Social Media

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 88–97, 2021; DOI: 10.25046/aj060613
Abstract:

The main objective and contribution of the paper is to describe the creation of a model to support recruitment using social media information and its deployment in practice. The model includes the design of an automated solution for downloading social media data and a proposal for the subsequent analysis and creation of a predictive model…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
6 Pages, 392 KB Download PDF

Modelling and Testing Services with Continuous Time SRML

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 60–65, 2021; DOI: 10.25046/aj060609
Abstract:

The SENSORIA Reference Modeling Language (SRML) aims at modelling composite services at a high level. Continuous time SRML extends SRML so that it can model services whose components can perform both discrete processes and continuous processes. In order to show how continuous time SRML is applied, in this paper, we systematically introduce our study on…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Theory & Methods in Computer Science (CTM))
Open AccessArticle
6 Pages, 372 KB Download PDF

Hiragana and Katakana Minutiae based Recognition System

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 54–59, 2021; DOI: 10.25046/aj060608
Abstract:

The Japanese writing system is unique due to the number of characters employed and the methods used to write words. It consists of three different ’alphabets’, which may result in the methods used to process Latin script not being sufficient to obtain satisfactory results when attempting to apply them to a recognition of the Japanese…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
9 Pages, 1,349 KB Download PDF

Service Robot Management System for Business Improvement and Service Extension

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 34–42, 2021; DOI: 10.25046/aj060606
Abstract:

Service robots are applied in many kinds of business fields and its various kinds of data can be collected with service robot in business scenes. Therefore, it becomes more important to utilize such data for business improvement. Additionally, due to limitation of design such as body size and battery life, a service robot cannot prepare…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Robotics (ROB))
Open AccessArticle
5 Pages, 633 KB Download PDF

Assessment of Transformer Cellulose Insulation Life Expectancy Based on Oil Furan Analysis (Case Study: South African Transformers)

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 29–33, 2021; DOI: 10.25046/aj060605
Abstract:

The ageing of oil-immersed power transformers triggers several defects and damages in the insulating materials, particularly in the cellulose insulation. The decomposition of the cellulose paper produces dissolved gases into the insulating oil, in which the Dissolved Gas Analysis (DGA) of the oil samples can provide insights to incipient faults sustained by the transformer as…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Instruments & Instrumentation (IIN))
Open AccessArticle
10 Pages, 1,252 KB Download PDF

Lean Six Sigma Implementation in the Food Sector: Nexus between Readiness-Critical Success Factors

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 12–21, 2021; DOI: 10.25046/aj060603
Abstract:

Lean Six Sigma (LSS) is a renowned approach for boosting operational excellence and competitive advantage through integrated core objectives of value creation and variation reduction. Despite its proven benefits in many leading companies, LSS implementation in the food sector is still behind compared with other sectors. LSS implementation is costly, and most businesses have failed…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Operations Research & Management Science (ORM))
Open AccessArticle
6 Pages, 1,194 KB Download PDF

Building Health Monitoring using Visualization of Sound Features Based on Sound Localization

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 01–06, 2021; DOI: 10.25046/aj060601
Abstract:

This paper describes what can be accomplished by understanding sound environments. Understanding sound environments is achieved by extracting the features of the sound and visualizing the features. The visualization is realized by converting the three features, namely, loudness, continuity, and pitch, into RGB values and expressing the sound with color, where the color is painted…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Acoustics (ACO))
Open AccessArticle
6 Pages, 505 KB Download PDF

Problems of Increasing the Intelligence of Algorithms for Optimal Distribution of the Current Load on the Combined Heat and Power Plant and Ways to Solve Them

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 369–374, 2021; DOI: 10.25046/aj060542
Abstract:

The problem of optimal distribution of the current load of a combined heat and power plant with a complex composition of equipment is considered. A multi-criteria approach is proposed for parts of graphs with a constant load in time, considering the factors of economy, reliability and ecology. For sections of the graph with a time-variable…

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(This article belongs to Section Automation & Control Systems (ACS))
Open AccessArticle
6 Pages, 586 KB Download PDF

Designing a Model of Consciousness Based on the Findings of Jungian Psychology

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 356–361, 2021; DOI: 10.25046/aj060540
Abstract:

As artificial intelligence (AI) develops, it is expected that humans and AI will become more closely related than now. At the same time, however, the more closely humans and AI are related to each other, the more clearly they will face a moral dilemma, i.e., artificial intelligence will face a moral dilemma. To solve the…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Artificial Intelligence in Computer Science (CAI))
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 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, 546 KB Download PDF

VoIP Codec Performance Evaluation on GRE with IPsec over IPv4 and IPv6

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 260–266, 2021; DOI: 10.25046/aj060528
Abstract:

Scientists succeeded in implementing conventional public switch telephone network (PSTN) into internet protocol by launching H.323 IP telephony. The irrelevant and unknown captions in H.323, computer scientists have replaced H.323 by Session Initiation Protocol (SIP) for Voice-over-IP (VoIP). However, the security of voice communication over IP is still a major concern. Besides, security and performance…

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(This article belongs to Section -)
Open AccessArticle
8 Pages, 348 KB Download PDF

Cyberbullying Detection by Including Emotion Model using Stacking Ensemble Method

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 229–236, 2021; DOI: 10.25046/aj060525
Abstract:

Cyberbullying is a serious problem and caused an immense impact to the victim. To prevent the cyberbullying, the solution is to develop an automatic detection system. In this research, we propose a combined model for cyberbullying detection and emotion detection by using stacking method. The experiment is to create a better model for cyberbullying detection…

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(This article belongs to Section Information Systems in Computer Science (CIS))
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