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Open AccessArticle
10 Pages, 831 KB Download PDF

Analysis of Cyberattacks in Public Organizations in Latin America

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 116–125, 2020; DOI: 10.25046/aj050215
Abstract:

It was analyzed certain information about cyberattacks in Latin America and methods to counteract the aggressions that affect services, data and infrastructure. The problem is the cyberattack on information networks where there is interdependence between processes, people and devices within public organizations with the negative consequence of denial of services. The objective is to propose…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
5 Pages, 710 KB Download PDF

The Proportionality of Women Graduated from the Professional Career of Mechanical and Electrical Engineering at UNTELS: Analysis of their Academic Performance and Labor Field of Action

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 1, Page # 368–372, 2020; DOI: 10.25046/aj050147
Abstract:

This research seeks to describe the proportionality of women graduated from the Professional Career of Mechanical and Electrical Engineering, analyzing their academic performance and the field of work action in which they are working. This study was done with the purpose of highlighting academic performance, and encouraging women to continue with this career, eliminating the…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Behavioral Sciences (BHS))
Open AccessArticle
6 Pages, 1,390 KB Download PDF

Analysis of Reducing Defect Waste in Rubber Product for Magnetic Disk Drive Industry

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 1, Page # 355–360, 2020; DOI: 10.25046/aj050145
Abstract:

Productivity is increasing when less input was used in getting the same outcomes. Thus, the effectiveness of productive effort, especially in industry, as measured in terms of the rate of output per unit of input. As in derivative rubber industry which is producing the seal product for final assembly of Disc Drive. The function of…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
9 Pages, 1,196 KB Download PDF

Routing Protocols for VANETs: A Taxonomy, Evaluation and Analysis

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 1, Page # 77–85, 2020; DOI: 10.25046/aj050110
Abstract:

VANET as a subclass of MANET is composed of a set of vehicles equipped with wireless transceivers, to build dynamic networks without the need of any pre-existing infrastructure. Over the last few decades, the area of routing protocols in VANETs has been extensively studied. Nevertheless, this area remains even more challenging due to some features…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Network Engineering (ENW))
Open AccessArticle
7 Pages, 713 KB Download PDF

Single-leg Standing Ability and Lower Limb Movement Analysis of Collegiate Footballers and Sedentary Students

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 1, Page # 01–07, 2020; DOI: 10.25046/aj050101
Abstract:

Stability or balance is an integral component to perform daily activities without incurring injury or to be dependent on others. Sportsmen tend to have better balance than non-sports people but less is known about the single-leg balance ability. Furthermore, few studies analyzed the dynamic phase of single-leg stance that may contribute to better overall balance.…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Sport Sciences (SPS))
Open AccessArticle
12 Pages, 1,518 KB Download PDF

Performance Analysis of Routing Protocols in Resource-Constrained Opportunistic Networks

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 402–413, 2019; DOI: 10.25046/aj040651
Abstract:

Recently, opportunistic networks are considered as one of the most attractive developments of ad hoc mobile networks (MANETs) that have emerged thanks to the development of intelligent devices. Due to the mobility-related instability of the paths between nodes and due to the limited buffer and energy resources, the ultimate objective of routing protocols in opportunistic…

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(This article belongs to Section Network Engineering (ENW))
Open AccessArticle
6 Pages, 2,411 KB Download PDF

Design and Analysis of Frequency Reconfigurable Antenna Embedding Varactor Diodes

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 371–376, 2019; DOI: 10.25046/aj040647
Abstract:

In this paper, we present a broadband frequency tunable antenna embedding varactor diodes. The reference antenna structure is a square antenna of patch dimensions [39,2 × 39,2] mm², operating at a single resonance frequency 2.45GHz. The recommended procedure to achieve the frequency shifting is to etch rectangular slots on the patch and to embed two…

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(This article belongs to Section Telecommunications (TEL))
Open AccessArticle
11 Pages, 1,566 KB Download PDF

Experimental Analysis in Alternate Current and Direct Current of the Operating Parameters of a Universal Single-Phase Engine

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 360–370, 2019; DOI: 10.25046/aj040646
Abstract:

This article presents the experimental analysis of a rotary machine, Universal Motor Analysis; analysis that obeys the purpose of obtaining the almost perfect understanding of the electromechanical behavior of said unit of analysis; It should be noted that the variables to be analyzed were: voltage, current, power, torque, rpm, and power factor; specifically said data…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
10 Pages, 3,151 KB Download PDF

Multiscale Texture Analysis and Color Coherence Vector Based Feature Descriptor for Multispectral Image Retrieval

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 270–279, 2019; DOI: 10.25046/aj040634
Abstract:

Content Based Image Retrieval (CBIR) for remote sensing image data is a tedious process due to high resolution and complexity of image interpretation. Development of feature extraction technique is a major portion to represent the image content in an optimal way. In this paper, we propose a feature descriptor which combines the color coherent pixel…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
5 Pages, 594 KB Download PDF

Comparative Analysis of Student Dissatisfaction of the Continuing Academic Semesters at UNTELS

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 203–207, 2019; DOI: 10.25046/aj040626
Abstract:

Student dissatisfaction is of the utmost importance when it comes to establishing a process of continuous improvement in a University. Currently, at the National Technological University of Lima Sur (UNTELS) there is no information regarding the levels of student dissatisfaction with the services offered by UNTELS. In this context, the purpose of this research project…

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(This article belongs to Section Behavioral Sciences (BHS))
Open AccessArticle
7 Pages, 812 KB Download PDF

Discriminant Analysis of Diminished Attentiveness State Due to Mental Fatigue by Using P300

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 108–114, 2019; DOI: 10.25046/aj040613
Abstract:

Fatigue is broadly divided into two types depending on the content of a task: physical fatigue and mental fatigue. Mental fatigue is associated with human error. It is thus important to search for indicators that can easily evaluate mental fatigue. The aim of this study is to construct a system that can evaluate mental fatigue…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Psychiatry (PSY))
Open AccessArticle
9 Pages, 676 KB Download PDF

Q2 YouTube: Quantitative and Qualitative Information Analysis based Influencer-aware YouTube Channel Ranking Scheme

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 01–09, 2019; DOI: 10.25046/aj040601
Abstract:

With the development of big data, artificial intelligence and deep learning, various social information networks are becoming exponentially intelligent. Of all the various social networks, YouTube is so popular that it is called the YouTube era. Not only video viewers, but also actual video producers, influencer youtubers, are increasing, allowing individuals as well as operators…

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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
8 Pages, 671 KB Download PDF

Analysis of Information Security for a Voting Process for Sectional Governments in Ecuador

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 5, Page # 352–359, 2019; DOI: 10.25046/aj040546
Abstract:

Knowing about different events in several Latin American countries, as well as in Ecuador, in relation to data alteration, in the different sectional voting processes, it has been necessary to carry out a security analysis provided by the systems of choice in the different sectional governments of the country. The objective of this study is…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
7 Pages, 312 KB Download PDF

Stability Analysis of a Linear Model Predictive Control and its Application in a Water Recovery Process

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 5, Page # 314–320, 2019; DOI: 10.25046/aj040540
Abstract:

This paper examines application of linear general model predictive control (LGMPC). The stability of the LGMPC is proven by means of a demonstration of a theorem stating a sufficient and constructive condition. Lower bounds conditions are found for one of these matrices and then a system with saturation is taken into consideration. The conditions can…

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(This article belongs to Section Automation & Control Systems (ACS))
Open AccessArticle
6 Pages, 737 KB Download PDF

Sentiment Analysis of Transjakarta Based on Twitter using Convolutional Neural Network

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 5, Page # 281–286, 2021; DOI: 10.25046/aj040535
Abstract:

TransJakarta is one of the methods to reduce congestion in Jakarta. However, the number of TransJakarta users compared to number of private vehicle users is very small, only 24% of the total population in Jakarta. The purpose of this research is to know public opinions about TransJakarta whether positive or negative by doing sentiment analysis…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
18 Pages, 1,256 KB Download PDF

Material, Structural Optimization and Analysis of Visible-Range Back-Illuminated OPFET photodetector

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 485–502, 2019; DOI: 10.25046/aj040459
Abstract:

High gain-bandwidth product and visible/UV contrast photodetectors are vital in Visible Light Communication (VLC) and Ultraviolet (UV) reflectance imaging applications respectively. We adopt material and structural optimization to perceive such photodetectors with back-illuminated Optical Field Effect Transistor (OPFET) wherein any potential difference in absorption coefficient of the semiconductor material between the visible and the UV…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Multidisciplinary Materials Science (MMU))
Open AccessArticle
8 Pages, 931 KB Download PDF

An Analysis of Social Media Usage in Winery Businesses

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 380–387, 2019; DOI: 10.25046/aj040446
Abstract:

Although social media is used by an ever-increasing number of businesses, its benefits have not yet been fully exploited. Social media analytics tools can prove helpful in this regard, since they comprise a unique information source for business intelligence. As the social media environment rapidly evolves, various social media analytics tools are emerging. This research…

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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
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 SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Electronic Engineering (EEE))
Open AccessArticle
7 Pages, 1,214 KB Download PDF

Performance Analysis of Thyristors Switched Capacitors used for Reactive Power Compensation of Induction Motor

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 58–64, 2019; DOI: 10.25046/aj040408
Abstract:

This paper analyzes the process of reactive power compensation using thyristors switched capacitors TSC topology based on multiterminal switch during the starting of induction motor. The paper explains the control principle of this TSC topology which depends on the multiterminal switch. To actively track the required reactive power for the dynamic load and to perfectly…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Electrical Engineering (ELE))
Open AccessArticle
9 Pages, 958 KB Download PDF

Permutation Methods for Chow Test Analysis an Alternative for Detecting Structural Break in Linear Models

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 12–20, 2019; DOI: 10.25046/aj040402
Abstract:

This study examined the performance of two proposed permutation methods for Chow test analysis and the Milek permutation method for testing structural break in linear models. The proposed permutation methods are: (1) permute object of dependent variable and (2) permute object of the predicted dependent variable. Simulation from gamma distribution and standard normal distribution were…

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(This article belongs to Section Statistics & Probability (STP))
Open AccessArticle
11 Pages, 603 KB Download PDF

Development of Tactile Display and an Efficient Approach to Enhance Perceptual Analysis in Rehabilitation

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 01–11, 2019; DOI: 10.25046/aj040401
Abstract:

Tactile displays are widely used in the rehabilitation and education of blind persons, as it is one of the media of communication amongst them. Tactile display performance is measured in terms of accuracy in presenting pattern, accuracy in identification, recognition and reading time of presented pattern. However, it has had meager attention from researchers. This…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
7 Pages, 977 KB Download PDF

Sentiment Analysis on Twitter for Predicting Stock Exchange Movement

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 244–250, 2019; DOI: 10.25046/aj040332
Abstract:

This paper is proposed to build a model by applying two methods, namely support vector machine and nonnegative matrix factorization in the process of predicting stock market movement using twitter and historical data. The stock exchange is based on the LQ 45 stock with period from August 2018 – January 2019. The features consist of…

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(This article belongs to Section Cybernetics in Computer Science (CCY))
Open AccessArticle
7 Pages, 1,680 KB Download PDF

Quantitative Traffic Congestion Analysis Approach in Ahmedabad

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 183–189, 2019; DOI: 10.25046/aj040324
Abstract:

This study is the extension of the previous study about “Traffic Service Quantitative Analysis Method under Developing Country” in 2018 International Conference on Advances in Computing, Communications and Informatics (ICACCI). In the previous study, it is introduced how to make quantitative calculation for traffic congestion by traffic parameters and its characteristics curve such as traffic…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Transportation Science & Technology (TST))
Open AccessArticle
5 Pages, 774 KB Download PDF

Transfer Function Analysis of Fractional-Order Three-Dimensional Electrically Coupled Cell Network

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 145–149, 2019; DOI: 10.25046/aj040319
Abstract:

In this paper, a novel method is proposed for the dynamic analysis of fractional- order three-dimensional electrically coupled cell network. In general, three- dimensional cell network is constructed by combining three one-dimensional circuit networks. Analysis method is based on the principles of the dynamic analysis with transfer function approximation. Although fractional-order three-dimensional circuit network model…

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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
12 Pages, 863 KB Download PDF

Analysis of Fuzzy Data for the Selection of Ingredients of the Polymer Composition by Technical Functions in Quality Management

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 88–99, 2019; DOI: 10.25046/aj040313
Abstract:

The task of fuzzy mathematical modeling of the composition of a polymer composition is singled out and formulated, as one of the types of chemical-technological systems for creating the theoretical foundations for managing the physicochemical properties of the material produced from this composition. Fuzzy data on the technical functions and concentration of individual ingredients that…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Polymer Science (PLS))
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