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Open AccessArticle
6 Pages, 646 KB Download PDF

Optimal Discrete-time Sliding Mode Control for Nonlinear Systems Subject to Input Constraints

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 141–146, 2019; DOI: 10.25046/aj040417
Abstract:

In this paper, an optimal discrete-time sliding mode control is proposed for single-input single-output nonlinear systems with input constraints. The sliding surface is designed on the basis of particle swarm optimization algorithm in order to optimize the system response characteristics while ensuring the follow-up of reference model in presence of constraints. Moreover, the controller is…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Automation & Control Systems (ACS))
Open AccessArticle
9 Pages, 795 KB Download PDF

Exploring of The Employee Information Management System using HOT-Fit and UTAUT2 Model

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 106–114, 2019; DOI: 10.25046/aj040412
Abstract:

Information Systems are a combination of information technology and activities of people who use these technologies to support operations, management, data, and technology. Based on Indonesian Minister of Home Affairs Decree No. 17 of 2000, the Regional Office of the Ministry of Law and Human Rights of West Sulawesi implements the Employee Management Information System…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
21 Pages, 2,883 KB Download PDF

Intelligent Foundations for Knowledge Based Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 73–93, 2019; DOI: 10.25046/aj040410
Abstract:

Knowledge Based Systems play a very important role, within Healthcare, with a primary goal of supporting a high quality service at an optimal cost. A widely accepted knowledge acquisition technique is through the use of Business Rules in a natural language like format. As clinical terminology is centric to HealthCare, a large percentage of these…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
13 Pages, 1,626 KB Download PDF

Career Recommendation System for Scientific Students Based on Ontologies

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 29–41, 2019; DOI: 10.25046/aj040404
Abstract:

Students are usually unaware of their own skills. They choose to follow the trend, rather than the proper pathway. Which negatively a_ects the professional sector, and the development of the country. Orienting students, and guiding them would o_er considerable benefits. Building the appropriate student’s profiles is the golden key for an accurate orientation. To do…

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(This article belongs to Section Multidisciplinary Engineering (EMU))
Open AccessArticle
9 Pages, 1,635 KB Download PDF

Energy Consumption Evaluation of Air Cooled Chiller With Cold Storage System Powered by Photovoltaic Modules

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 235–243, 2019; DOI: 10.25046/aj040331
Abstract:

Renewable energy becomes an appealing technology used in many applications in our life. Environmentally, it reduces CO2 emissions and enhances the sustainability of the system. This paper study the benefits of using a photovoltaic system with a thermal storage tank to power air-cooled chiller, in two different scenarios. The simulation methodology is adopted in this…

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(This article belongs to Section Mechanical Engineering (EMH))
Open AccessArticle
12 Pages, 17,549 KB Download PDF

An Efficient Automotive Paint Defect Detection System

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 171–182, 2019; DOI: 10.25046/aj040323
Abstract:

Vision-based defect detection techniques are widely used for quality control purposes. In this work, an efficient deflectometry based detection system is developed for semi-specular/painted surface defect detection. This system consists of a robotic arm that carries a screen/camera setup and can detect defects on large surfaces with different topologies, such as a car bumper, by…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Robotics (ROB))
Open AccessArticle
8 Pages, 1,396 KB Download PDF

Linearity Improvement of VCSELs based Radio over Fiber Systems utilizing Digital Predistortion

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 156–163, 2019; DOI: 10.25046/aj040321
Abstract:

The article proposes a Digital Predistortion (DPD) methodology that substantially meliorates the linearity of limited range Mobile Front Haul links for the extant Long-Term Evolution (LTE) and future (5G) networks. Specifically, the DPD is employed to Radio over Fiber links that contrive of Vertical Cavity Surface Emitting Lasers (VCSELs) working at 850 nm. Both, Memory…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Optics (OPT))
Open AccessArticle
6 Pages, 856 KB Download PDF

Modeling of Grid-Connected Photovoltaic System Installation in Moroccan Ibn Tofail University

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 150–155, 2019; DOI: 10.25046/aj040320
Abstract:

The main importance of solar photovoltaic energies research is to meet the many environmental demands of the energy challenge, to maximize power and to reduce the costs of photovoltaic (PV) systems to reply the energy needs of population. In the present research work, the first objective is to study the performance and the output energy…

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(This article belongs to the isaect-18 (Special Issue on Advanced Electrical and Communication Technologies 2019) & Section Electrical Engineering (ELE))
Open AccessArticle
9 Pages, 708 KB Download PDF

Cognitive Systems for Monitoring: Architectural View

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 117–125, 2019; DOI: 10.25046/aj040316
Abstract:

The modern stage of information technology development is characterized by the acute need to use cognitive technologies for the solution of tasks of practice, in particular, in the sphere of real world objects monitoring and management. Practical usage of cognitive systems of monitoring is significantly limited to two factors now: operation at the level of…

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(This article belongs to Section Theory & Methods in Computer Science (CTM))
Open AccessArticle
11 Pages, 812 KB Download PDF

An Approach to Vulnerabilities, Threats and Risk in Voting Systems for Popular Elections in Latin America

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 106–116, 2019; DOI: 10.25046/aj040315
Abstract:

The problems in information security regarding vulnerabilities, threats and risks in voting systems for popular election in Latin America and the world persist; because in most of the countries of the world there is no maturity in democracy and defined policies; the problems of confidentiality, integrity and authenticity in the electoral processes can be evidenced.…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
13 Pages, 1,786 KB Download PDF

Development of Smart Technology for Complex Objects Prediction and Control on the Basis of a Distributed Control System and an Artificial Immune Systems Approach

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 75–87, 2019; DOI: 10.25046/aj040312
Abstract:

This paper is an extension of work originally presented in 2018 Global Smart Industry Conference (GloSIC). Researches are devoted to the development of Smart technology for complex objects control and prediction on the basis of a distributed Honeywell DCS control system of the TengizChevroil enterprise using the example of a technological process of medium pressure…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
9 Pages, 1,042 KB Download PDF

Detection the Places of the Heat Energy Leak on the Underground Thermal Pipelines Using the Computer System

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 01–09, 2019; DOI: 10.25046/aj040301
Abstract:

The purpose of this paper is to improve the thermographic method for detection the places of heat energy losses on the urban underground thermal pipelines using the computer system. This goal was achieved by building a heat map of the surveyed heating main with data layering directly on a computer map of the area, which…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
13 Pages, 811 KB Download PDF

Computer Security as an Engineering Practice: A System Engineering Discussion

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 357–369, 2019; DOI: 10.25046/aj040245
Abstract:

We examine design principles from more than 20 years of experience in the implementation and protection of mission critical flight systems used by the Mission Design and Navigation Section at NASA’s Jet Propulsion Laboratory. Spacecraft navigation has rigorous requirements for completeness and accuracy, often under critical and uncompromising time pressure. Fault tolerant and robust design…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
7 Pages, 816 KB Download PDF

Optimization of Statcom in a Nouakchott Power System

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 333–339, 2019; DOI: 10.25046/aj040242
Abstract:

STATCOM a shunt connected Flexible Alternative Current Systems (FACTS) device using for fast control of voltage and reactive power control in the power grid. To optimize Nouakchott power system at 2030 year, we anticipate both generation and demand grow. A set of nonlinear equations are solved through Newton Raphson method and programmed in PSS/E and…

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(This article belongs to the isaect-18 (Special Issue on Advanced Electrical and Communication Technologies 2019) & Section Electrical Engineering (ELE))
Open AccessArticle
7 Pages, 600 KB Download PDF

Designing IT Blue Print Academic System on Higher Education with Togaf

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 244–250, 2019; DOI: 10.25046/aj040232
Abstract:

STIE XYZ is one of the universities of economics that has not been optimal in the use of information technology. IT implementation is applied when there are urgent and sudden needs. So it is not planned carefully according to the development needs of this educational institution. Therefore many patchy applications are created. As the consequence,…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
6 Pages, 634 KB Download PDF

Computational and Technological Models of Cognitive Monitoring Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 197–202, 2019; DOI: 10.25046/aj040226
Abstract:

The approach to the construction of promising cognitive monitoring systems is considered. Based on the analysis of known solutions, the problem of automatic synthesis of computational models of cognitive monitoring is posed. In the synthesis of models, it is proposed to reduce them to relatively finite operational automata. An example of a synthesized model of…

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(This article belongs to Section Theory & Methods in Computer Science (CTM))
Open AccessArticle
9 Pages, 844 KB Download PDF

Frequency-Based Design of Electric System for Off-shore Wind Power Plant (OWPP)

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 153–161, 2019; DOI: 10.25046/aj040220
Abstract:

The paper presents a novel concept of design of electric system for Off-shore Wind Power Plant (OWPP) based on frequency. In the literature, a new transmission system i.e. Fractional Frequency Transmission System (FFTS) has been proposed as an economic alternative to High Voltage AC (HVAC) and High Voltage DC (HVDC) for power transmission from Off-shore…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Electrical Engineering (ELE))
Open AccessArticle
11 Pages, 841 KB Download PDF

A Systematic Mapping Study of Cloud, Fog, and Edge/Mobile Devices Management, Hierarchy Models and Business Models

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 91–101, 2019; DOI: 10.25046/aj040212
Abstract:

Cloud computing is an exceptional paradigm, which is facilitating the developments and utilization of resources over the internet. Fog computing operates at the edge of the network saving bandwidth, by not sending all information to the cloud, while edge computing does processing of data at the edge of the cloud. Edge computing reduces the distance…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
8 Pages, 1,120 KB Download PDF

LabVIEW Development for an Intelligent Management System of the Electrical Energy Free Market

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 83–90, 2019; DOI: 10.25046/aj040211
Abstract:

Consumers of electrical energy have looked more closely to the energy consumption in last years due to the successive increase of the electricity bill. Nowadays it is possible to notice that many consumers have been looking for ways to reduce their consumption or the value of their electricity bill. Such a cost reduction is obtained…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Energy & Fuels (ENF))
Open AccessArticle
5 Pages, 336 KB Download PDF

A Relation Extraction System for Indian Languages

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 65–69, 2019; DOI: 10.25046/aj040208
Abstract:

Relation Extraction is an important subtask of Information Extraction that involves extracting significant facts from natural language text. Extracting structured information from the plaintext is the ultimate goal of IE systems. The Indian language content on the internet is increasing day to day. Extracting relevant information from this huge unstructured data is a challenging task…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Bioinformatics (BIF))
Open AccessArticle
6 Pages, 858 KB Download PDF

Technical and Economic Merits Resulting from Power Systems Interconnection

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 34–39, 2019; DOI: 10.25046/aj040205
Abstract:

In this paper, the impact of interconnection among isolated and dispersed electric power systems have been Investigated and analyzed. Therefore, the methodology proposed in this work is implemented in three real electric power systems in the western part of Saudi Arabia (designated as I, II and III). The outcome of this study revealed positive benefits…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
17 Pages, 4,140 KB Download PDF

Critical Embedded Systems Development Using Formal Methods and Statistical Reliability Metrics

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 231–247, 2019; DOI: 10.25046/aj040123
Abstract:

Trusted systems are becoming more integrated into everyday life. Security and reliability are at the forefront of trusted system design and are often directed at hardware-only solutions, especially for safety critical systems. This is because hardware has a well-established process for achieving strong, precise, and reliable systems. These attributes have been achieved in the area…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
6 Pages, 409 KB Download PDF

PAPR and BER Performances of OFDM System with Novel Tone Reservation Technique Over Frequency Non-Selective Fading Channel

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 225–230, 2019; DOI: 10.25046/aj040122
Abstract:

An Orthogonal Frequency Division Multiplexing (OFDM) system with Quadrature Phase Shift Keying (QPSK) mapper is considered. A novel low-complexity Tone Reservation (TR) technique is proposed for reduction of Peak-to-Average Power Ratio (PAPR) of the system. The technique is easy-to-implement and minimizes the search space of phases of reserved tones in the system. The ability of…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Telecommunications (TEL))
Open AccessArticle
5 Pages, 738 KB Download PDF

A Proposed Architecture for Parallel HPC-based Resource Management System for Big Data Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 40–44, 2019; DOI: 10.25046/aj040105
Abstract:

Big data can be considered to be at the forefront of the present and future research activities. The volume of data needing to be processed is growing dramatically in both velocity and variety. In response, many big data technologies have emerged to tackle the challenges of collecting, processing and storing such large-scale datasets. High-performance computing…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
9 Pages, 5,313 KB Download PDF

Spectral Grid Impedance Identification on the Low-, Medium- and High-Voltage Level – System Design, Realization and Measurement Results of Grid Impedance Measurement Devices

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 8–16, 2019; DOI: 10.25046/aj040102
Abstract:

The frequency dependent grid impedance at the terminals of an electrical supply grid is an essential parameter for power quality and grid feedback analysis. In this contribution the identification of the grid impedance is achieved using spectral excitation currents at the corresponding grid connection point, which generate measureable changes in the grid voltage spectra. Different…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Electrical Engineering (ELE))
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