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Open AccessArticle
9 Pages, 1,134 KB Download PDF

Effectiveness and Comparison of Digital Substations Over Conventional Substations

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 431–439, 2019; DOI: 10.25046/aj040452
Abstract:

The entire electrical system is changing at an abrupt speed since its beginning. With the rapid advance of renewable energies (which are constantly subject to fluctuations), the electricity generation is distributed to countless locations. The traditional model of the unidirectional flow of electricity is leaning towards multidirectional flows. This situation needs significant changes in the…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Electrical Engineering (ELE))
Open AccessArticle
10 Pages, 1,328 KB Download PDF

Supporting Better Physical Activity in a Smart City: a Framework for Suggesting and Supervising Walking Paths

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 404–413, 2019; DOI: 10.25046/aj040449
Abstract:

The increase of elderly population creates the need to promote healthy aging, with autonomy and independence, for preserving the functional capacity and quality of life as much as possible. To achieve this goal the recommendations include walking a certain amount of steps daily, given that the exact amount of steps changes with age, lesions, and…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Bioinformatics (BIF))
Open AccessArticle
14 Pages, 2,562 KB Download PDF

Evaluation of the Effects of Bidding Strategy with Customized Pricing on the Individual Prosumer in a Local Energy Market

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 366–379, 2019; DOI: 10.25046/aj040445
Abstract:

Peer-to-peer (P2P) energy trading is a mechanism that allows people to share locally the energy they have generated from distributed renewable resources (DER), to generate profit form the unused resources and to reduce the cost for electricity for the household and in the community itself. This calls for the design of new energy markets, accompanied…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Electrical Engineering (ELE))
Open AccessArticle
7 Pages, 4,180 KB Download PDF

Hidden Surface Removal for Interaction between Hand and Virtual Objects in Augmented Reality

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 359–365, 2019; DOI: 10.25046/aj040444
Abstract:

Recently, augmented reality (AR) technology has been applied to the inter- action technology between human and virtual objects. In AR interaction technology, it is necessary for users to be able to manipulate virtual objects intuitively. Thus, we focus on manipulating virtual objects directly with the user’s bare hands in this study. On the other hand,…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessReview
19 Pages, 1,546 KB Download PDF

Overview on 5G Radio Frequency Energy Harvesting

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 328–346, 2019; DOI: 10.25046/aj040442
Abstract:

The current industrial landscape is becoming increasingly aware of the need to optimize energy use and management for all domains, including telecommunications. Among others, RF Energy Harvesting is a promising technique for 5G systems as an alternative to traditional energy supply sources. This paper presents 5G landscape and ecosystem. It positions RF-Energy Harvesting in 5G…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Telecommunications (TEL))
Open AccessArticle
6 Pages, 951 KB Download PDF

Enhancing Bodily Movements of the Visually Impaired Children by Airflow

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 308–313, 2019; DOI: 10.25046/aj040439
Abstract:

This study involved three departments of teachers and students. The concept of the flow-motivated exercise implemented with a set of flow nozzles. A computer-controlled airflow with specific music introduced, and the motion responses from the participants were analyzed during the initial test and field study. During the initial examination, we adjusted the magnitude and distance…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2019-20 & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 696 KB Download PDF

Prototype of a Security Architecture for a System of Electronic Voting for the Ecuador

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 292–299, 2019; DOI: 10.25046/aj040437
Abstract:

To be able to perform a better voting system, it is important to go to ICT and its various platforms designed for electoral purposes, which are being used in several countries in Latin America. In Ecuador are being used digital mechanisms during the process, but with certain errors and he is being considered to implement…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
5 Pages, 790 KB Download PDF

Research on Dynamic Vehicle Model Equipped Active Stabilizer Bar

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 271–275, 2019; DOI: 10.25046/aj040434
Abstract:

Vehicles are rollover when steering at high speed, this phenomenon is limited by increasing the anti-roll moment of the suspension system. This research focuses on analyzing and establishing the dynamic model of vehicle when steering and describes the dependence of the vehicle body’s roll angle on other factors. Research has shown that when equipped a…

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(This article belongs to Section Mechanical Engineering (EMH))
Open AccessArticle
6 Pages, 1,532 KB Download PDF

A Novel Strategy For Prompt Small Cell Deployment In Heterogeneous Networks

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 265–270, 2019; DOI: 10.25046/aj040433
Abstract:

Popularity and a_ordability of smart phones and other data hungry devices add exponentially to the tra_c demand of existing cellular networks. Cell densification and small cell deployment over existing macrocell has been identified as an e_ective solution to high tra_c demand predicted for future wireless networks like 5G. Small cells are deployed over existing macrocells…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Telecommunications (TEL))
Open AccessArticle
9 Pages, 3,342 KB Download PDF

A Perceptually Optimized Embedded Image Coder and Quality Assessor Based Both on Visual Tools

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 230–238, 2019; DOI: 10.25046/aj040428
Abstract:

In this paper, we propose a new Perceptually Optimized Embedded Zero Tree Image Coder EVIC and its improved version MEVIC. The coder presents a new perceptual model to weight wavelet coefficients to enhance SPIHT embedded coding. The new visual coder aims to improve the visual quality obtained by the reference SPIHT coder for a given…

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(This article belongs to the Special Issue on Advanced Electrical and Communication Technologies 2019 & Section Telecommunications (TEL))
Open AccessArticle
9 Pages, 1,813 KB Download PDF

Optical Braille Recognition Software Prototype for the Sinhala Language

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 221–229, 2019; DOI: 10.25046/aj040427
Abstract:

Braille system is purposely made for visually impaired people, to support their literal communication in order to share their knowledge. Louis Braille introduced the braille system consists of series dots which are embossed to read by touching. Early days Braille papers are made manually, but at current days braille documents are made using machines. Due…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
14 Pages, 1,962 KB Download PDF

Model-Driven Engineering Infrastructure and Tool Support for Petrochemical Industry Automation

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 174–187, 2019; DOI: 10.25046/aj040422
Abstract:

The definition of equipment and components of physical plants is a necessary step towards the development of simulation, control, and supervisory applications for the petrochemical industry. Often it happens that the same plant/equipment is (re)modeled on each application, causing a waste-oftime on repetitive (re)design, besides introducing potential inconsistencies between the models. Moreover, even though each…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
8 Pages, 954 KB Download PDF

Smart Meter Data Analysis for Electricity Theft Detection using Neural Networks

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 161–168, 2019; DOI: 10.25046/aj040420
Abstract:

The major problem in electric utility is Electrical Theft, which is harmful to electric power suppliers and causes economic loss. Detecting and controlling electrical theft is a challenging task that involves several aspects like economic, social, regional, managerial, political, infrastructural, literacy rate, etc. Numerous methods were proposed formerly for detecting electricity theft. However, the previous…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Electronic Engineering (EEE))
Open AccessArticle
5 Pages, 586 KB Download PDF

Multi-Restricted Area Avoidance Scenario Using Hybrid Dynamical Model and Its Predictive Controller

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 147–151, 2019; DOI: 10.25046/aj040418
Abstract:

This article is addressed to show the results of hybrid dynamical modeling in the form of PWA (piecewise-affine) and equivalent MLD (mixed-logical dynamical) model for multi-restricted areas avoidance of an autonomous system. It is a problem of determining the optimal moving trajectory from plant’s initial position to some desired position while avoiding some restricted areas…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Robotics (ROB))
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 Special Issue on Advancement in Engineering and Computer Science 2019 & Section Automation & Control Systems (ACS))
Open AccessArticle
5 Pages, 1,183 KB Download PDF

Experimental Evaluation of Transmission between Two XBee Modules Using Radio-over-Fiber Technique

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 128–132, 2019; DOI: 10.25046/aj040415
Abstract:

An experimental transmission between two XBee modules using Radio over Fiber technique is demonstrated. Data issued from an XBee module coded on a wireless microwave carrier at 2.44GHz is transmitted through an optical link of 25.24 km. The optical transmission is based on an external modulation scheme over a dispersive channel. Frequency response of the…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Optics (OPT))
Open AccessArticle
7 Pages, 784 KB Download PDF

Aggrandized Random Forest to Detect the Credit Card Frauds

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 121–127, 2019; DOI: 10.25046/aj040414
Abstract:

From the collection of supervised machine learning technique, an ensemble procedure is used in Random Forest. In the arena of Data mining, there is an excellent claim for machine learning techniques. Random Forest has tremendous latent of becoming a widespread technique for forthcoming classifiers as its performance has been found analogous with ensemble techniques bagging…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Interdisciplinary Applications of Computer Science (CSI))
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
12 Pages, 1,450 KB Download PDF

An Extension of Throughput Drop Estimation Model for Three-Link Concurrent Communications under Partially Overlapping Channels and Channel Bonding in IEEE 802.11n WLAN

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 94–105, 2019; DOI: 10.25046/aj040411
Abstract:

The IEEE 802.11n wireless local-area network (WLAN) has been extensively deployed around the world due to the flexibility, lower cost, and the high-speed data transmission capability at 2.4 GHz ISM band. However, in the WLAN deployment, one key challenge is to optimize the channel assignment of access-points (APs) under the small number of partially overlapping…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Telecommunications (TEL))
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 Special Issue on Advancement in Engineering and Computer Science 2019 & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 2,099 KB Download PDF

All-Pass RC-Filters Architecture with Independent Adjustment of the Main Parameters Based on Differential Difference Amplifiers

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 65–72, 2019; DOI: 10.25046/aj040409
Abstract:

We have suggested an architecture of the second-order all-pass active RC-filter (ARCF), based on three differential difference amplifiers (DDA’s), which provides full set of amplitude-frequency responses (AFR’s) (low pass filter (LPF), high pass filter (HPF), band pass filter (BPF), rejection filter (RF)). We have given the basic equations, which allow ARCF’s. The results of computer…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Electronic Engineering (EEE))
Open AccessArticle
4 Pages, 946 KB Download PDF

The Study of PSi & PSo Algorithm for Reducing Power of the Mobile Communication Network

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 47–50, 2019; DOI: 10.25046/aj040406
Abstract:

Recently, the trend of mobile communication network in Korea has been dramatically increasing the number of operating equipment for managing the explosion of wireless data traffic in 4G LTE network. This phenomenon has caused an increase in the operating cost to the mobile telecommunication service provider. Especially, the study about the reduction of the operating…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Telecommunications (TEL))
Open AccessArticle
9 Pages, 1,482 KB Download PDF

Factors Influencing the Integration of Freight Distribution Networks in the Indonesian Archipelago: A Structural Equation Modeling Approach

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 278–286, 2019; DOI: 10.25046/aj040335
Abstract:

The main problem of the distribution of freight in archipelago countries such as Indonesia is how to ensure that the outlying and outermost islands are served optimally, with low freight costs and optimal frequency of vessel stops at ports. There are three types of vessels that are subsidized and have the duty of public service…

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(This article belongs to Section Transportation Science & Technology (TST))
Open AccessArticle
9 Pages, 1,122 KB Download PDF

Proposal of Ledger Technology to Apply to a Public Organization in Ecuador

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 251–259, 2019; DOI: 10.25046/aj040333
Abstract:

Ledger technology has now changed financial systems around the world, applying this technology to the improvement of the public sector, mainly to the debt collection system, we improve the speed of payment and its immediate registration, we make use of the advantages of Ledger technology with respect to reliability, security and speed. The objective is…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
8 Pages, 1,531 KB Download PDF

Multi-Band Hand of God Antenna with Functionality Variation with Use of Slots and Feed Position

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 227–234, 2019; DOI: 10.25046/aj040330
Abstract:

This article investigates different versions of a new multi-band micro-strip antenna design. NASA inspired the antenna design from “Hand of God” galaxy discovery. A multi-band operation between 0.15 and 8 [GHz] is obtained and captures up to 10 frequency bands. The antenna has a small area of 4 x 5 cm2 and is printed on…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Telecommunications (TEL))
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