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Open AccessArticle
10 Pages, 1,075 KB Download PDF

Dependence of the Knowledge Structure of the Company Employees on a Set of the Competencies

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 699–708, 2021; DOI: 10.25046/aj060281
Abstract:

The article substantiates the relevance of conducting research on the structural characteristics of a company’s employee knowledge, which is the result of his mental activity and his practical experience. The conditions under which information becomes a source of employee knowledge are determined. An abstract analysis of the process of transforming knowledge into an intellectual product…

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(This article belongs to Section Engineering Management (EMM))
Open AccessArticle
5 Pages, 622 KB Download PDF

Analyze Performance of Enterprise Supervision System by Game Theory-Take the case of Tatung Management Rights Competition as Example

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 689–693, 2021; DOI: 10.25046/aj060279
Abstract:

Protecting the rights and interests of shareholders is the important research topic. This study takes ” Tatung Operation Rights Competition” as an example to execute case study. Game tools are applied to analyze which corporate supervision strategies should be used by government. The research and analysis results show that both the corporate group and the…

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(This article belongs to Section Operations Research & Management Science (ORM))
Open AccessArticle
9 Pages, 1,478 KB Download PDF

Developing Kamishibai and Hologram Multimedia for Environmental Education at Elementary School

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 656–664, 2021; DOI: 10.25046/aj060276
Abstract:

A Japanese method in teaching at classroom show good result by implementing Kamishibai. On the other hand, technology is inseparable from daily life. Computer-based learning media innovations are fast and diverse, ranging from 2D animation to 3D environments. The hologram is one example of 3D object visualization to deliver the learning material. Based on Kamishibai’s…

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(This article belongs to Section Behavioral Sciences (BHS))
Open AccessArticle
5 Pages, 914 KB Download PDF

Controlling A Multiphase Induction Motor with Multilevel Converter Paradigm

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 641–645, 2021; DOI: 10.25046/aj060274
Abstract:

Induction motors (IM) are used widely in high energy applications where high torque is required such as ships/ aircrafts manufacturing industry. Those motor drivers are populated in many advantages especially their wide control strategies. However, new technology is invented for enhancing efficiency and smoothing the torque curve by increasing number of phases in the motor…

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(This article belongs to Section Electrical Engineering (ELE))
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
11 Pages, 938 KB Download PDF

Complex Order PI\(^{a+jb}\)D\(^{c+jd}\) Controller Design for a Fractional Order DC Motor System

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 541–551, 2021; DOI: 10.25046/aj060261
Abstract:

Industry 4.0 implementation stipulates effective actuator control. In the present work, a complex order PIa+jb Dc+jd (COPID) controller was designed for a fractional order model of a direct current (DC) motor system. For comparisons, the DC motor system model was also controlled using the conventional proportional integral (PI), proportional integral derivative (PID), proportional resonant (PR) and fractional…

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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
15 Pages, 468 KB Download PDF

A Model for the Application of Automatic Speech Recognition for Generating Lesson Summaries

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 526–540, 2021; DOI: 10.25046/aj060260
Abstract:

Automatic Speech Recognition (ASR) technology has the potential to improve the learning experience of students in the classroom. This article addresses some of the key theoretical areas identified in the pursuit of implementing a speech recognition system, capable of lesson summary generation in the educational setting. The article discusses: some of the applica- tions of…

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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
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
11 Pages, 1,118 KB Download PDF

A Novel Approach for Evaluating Eddy Current Loss in Wind Turbine Generator Step-Up Transformers

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 488–498, 2021; DOI: 10.25046/aj060256
Abstract:

South Africa is aiming to achieve a generation capacity of about 11.4GW through wind energy systems, which will contribute nearly 15.1% of the country’s energy mix by 2030. Wind energy is one of the principal renewable energy determinations by the South African government, owing to affluent heavy winds in vast and remote coastal areas. In…

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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
6 Pages, 507 KB Download PDF

Application of Polynomial Regression Analysis in Evaluating the Techno-Economic Performance of DSPV Transformers

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 458–463, 2021; DOI: 10.25046/aj060252
Abstract:

To this extent, the delineation of techno-economic evaluations for transformers becomes more intricate through a lens of Distributed Solar Photovoltaic (DSPV) market in South Africa. Essentially, the transformer price and loss evaluation techniques should be tailored for calculating the Total Ownership Cost (TOC) of transformers facilitating decentralized energy systems. In South Africa, the traditional coal…

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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
9 Pages, 2,164 KB Download PDF

Survey of Agent-Based Simulations for Modelling COVID-19 Pandemic

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 439–447, 2021; DOI: 10.25046/aj060250
Abstract:

On the 11th of March 2020, the World Health Organization (WHO) declared COVID-19 as a pandemic. Part of controlling measures of the pandemic is to understand the disease’s trajectories. There are several possible interventions that can prevent and control its spread. Determining an optimal strategy is critical for policymakers to understand the impact of different…

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(This article belongs to Section Theory & Methods in Computer Science (CTM))
Open AccessArticle
16 Pages, 2,343 KB Download PDF

Vehicle Number Plate Detection and Recognition Techniques: A Review

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 423–438, 2021; DOI: 10.25046/aj060249
Abstract:

Vehicle number plate detection and recognition is an integral part of the Intelligent Transport System (ITS) as every vehicle has a number plate as part of its identity. The quantity of vehicles on road is growing in the modern age, so numerous crimes are also increasing day by day. Almost every day the news of…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
7 Pages, 929 KB Download PDF

SEA WAF: The Prevention of SQL Injection Attacks on Web Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 405–411, 2025; DOI: 10.25046/aj060247
Abstract:

The security of website application has become important in the last decades. According to the Open Web Application Security Project (OWASP), the SQL Injection is classified as one of the major vulnerabilities found in web application security. This research is focused on improving website security in dealing with SQL Injection attacks by stopping, monitoring, and…

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(This article belongs to Section Software Engineering in Computer Science (CSE))
Open AccessArticle
12 Pages, 1,196 KB Download PDF

Students’ Preparedness to Learn in e-Learning Environment and their Perception on The MPKT Lecturers’ Readiness to Manage Online Class

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 387–398, 2021; DOI: 10.25046/aj060245
Abstract:

This study has two objectives: to determine the level of readiness of first-year undergraduate students at the Universitas Indonesia (UI) and to investigate student’s perception of MPKT (Integrated Character Development course) lecturers’ readiness to manage online learning class. Proportional cluster sampling was applied, and 1466 freshmen from thirteen faculties participated. Data clustering and imputation of…

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(This article belongs to Section Interdisciplinary Applications of Mathematics (MIA))
Open AccessArticle
4 Pages, 583 KB Download PDF

Implementation of Blended Learning Models to Improve Student Learning Outcomes in Junior High School

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 374–377, 2021; DOI: 10.25046/aj060243
Abstract:

The purpose of this study is to determine the improvement of the competence of junior high school students through the application of blended learning models. This is a Classroom Action Research comprising of two cycles and two observations of student activities, with the descriptive statistics used for data analysis. From the results of the learning…

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(This article belongs to Section Theory & Methods in Computer Science (CTM))
Open AccessArticle
10 Pages, 1,188 KB Download PDF

Factors Affecting Behavioural Intention to Shop in Self-Service Retail Case Study: JD.ID X Mart

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 285–294, 2021; DOI: 10.25046/aj060233
Abstract:

This paper aims to measure the acceptance level of Indonesian customers to JD.ID X retail and to reveal the driving factors of behavioral intention to shop at the retail. JD.ID X is new retail that implements a new shopping technology called Just walk-out technology (JWOT) also known as retail without a cashier. JWOT is one…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
7 Pages, 958 KB Download PDF

Blockchain Technology-Based Good Distribution Practice Model of Pharmacy Industry in Indonesia

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 267–273, 2021; DOI: 10.25046/aj060230
Abstract:

Distribution is the main activity in integrated product supply chain management. In the pharmaceutical industry, the process of drug distribution is important because of the handling, storage, and distribution of medicinal products with good standards and quality. The problem that occurs in the pharmaceutical industry is the circulation of counterfeit drugs by related parties, for…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
5 Pages, 744 KB Download PDF

Characterization of Gum Arabic in Concrete Mix Design

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 262–266, 2021; DOI: 10.25046/aj060229
Abstract:

The present work focuses on the effect of adding gum Arabic on the setting time of cement pastes, workability, and compressive strength of concrete. For workability and compressive strength liquid gum Arabic was added to concrete mixes at ratios of 0.0% (control mix), 0.3%, 0.5%, 0.7% of the weight of cement. In addition, from 0.1%…

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(This article belongs to Section Civil Engineering (ECV))
Open AccessArticle
13 Pages, 886 KB Download PDF

Categorization of RDF Data Management Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 221–233, 2021; DOI: 10.25046/aj060225
Abstract:

The wide acceptance of the semantic web language RDF for ontologies creation in various application fields has led to the emergence of numerous RDF data processing solutions, the so-called triplestores, for the storage of RDF data and its querying using the RDF query language SPARQL. Such solutions are however developed under various perspectives and on…

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(This article belongs to Section Information Systems in Computer Science (CIS))
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
5 Pages, 860 KB Download PDF

Variation of the Air-Fuel Ratio with Inlet Pressure, Temperature and Density

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 190–194, 2021; DOI: 10.25046/aj060222
Abstract:

The control of the air-fuel ratio (AFR) is critical for the efficiency of the combustion. This is for achieving the better performance of the plant and result in high output energy. Computation of the AFR is gone considering the composition of the fuel regardless of the inlet pressure, density ad temperature of both fuel and…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
5 Pages, 722 KB Download PDF

The Impact of COVID-19 Pandemic and Commodities Prices on Booking.com Share Price

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 185–189, 2021; DOI: 10.25046/aj060221
Abstract:

This paper examines the impacts of the COVID-19 pandemic and selected commodity variables on Booking.com share price using the Markov-switching approach. Daily data spans from January 2017 through July 2020 are utilized in this study. Empirical evidence showed that COVID-19, international crude oil price, and gold price affected the Booking.com share price significantly. A positive…

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(This article belongs to the sp-covid19 (Special Issue on the Economic Impact of COVID-19 on Companies and Consumers 2020-21) & Section Operations Research & Management Science (ORM))
Open AccessArticle
14 Pages, 606 KB Download PDF

A Large Empirical Study on Automatically Classifying Software Maintainability Concerns from Issue Summaries

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 161–174, 2021; DOI: 10.25046/aj060219
Abstract:

Software maintenance contributes the majority of software system life cycle costs. However, existing approaches with automated code analysis are limited by accuracy and scope. Using human-assessed methods or implementing quality standards are more comprehensive alternatives, but they are much more costly for smaller organizations, especially in open- source software projects. Instead, bugs are generally used…

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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
7 Pages, 1,019 KB Download PDF

Application of a Reusability Approach in Simulation of Heritage Buildings Performance, Taif- Saudi Arabia

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 132–138, 2021; DOI: 10.25046/aj060216
Abstract:

The main purpose of this paper is to present a reusability approach that helps the designer to assess the best practice to restore a heritage building. Based on the literature review, the reusability process and attributes was used as a method to restore the heritage building. Considering these approaches helps the designer to achieve useful…

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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
10 Pages, 1,822 KB Download PDF

A Model-Driven Digital Twin Framework Development for Sulfur Dioxide Conversion Units Simulation

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 122–131, 2021; DOI: 10.25046/aj060215
Abstract:

In the phosphate industry, sulfuric acid is a key compound in phosphoric acid and fertilizer production. Industrially, the sulfuric acid H2SO4 is made generally in a sequence of three main steps: burning liquid sulfur with air, catalytic oxidation of sulfur dioxide SO2 to sulfur trioxide SO3, and formation of H2SO4 by the reaction of H2O…

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