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Open AccessArticle
5 Pages, 1,086 KB Download PDF

Design, Implementation and Performance Analysis of a Dual Axis Solar Tracking System

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 41–45, 2020; DOI: 10.25046/aj050306
Abstract:

This study presents the design and construction of the Dual Axis Solar Tracking System to ensure maximum energy gain. The solar tracking system will automatically follow the sun’s position to maximize the intensity of the light emitted from the sun. When the light intensity decreases, the system automatically changes its direction to get the maximum…

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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
6 Pages, 788 KB Download PDF

Centralized System of Universities Learning Materials

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 28–33, 2020; DOI: 10.25046/aj050304
Abstract:

This article considers the creation of a program / website as an example of a centralized system for all universities in order to more easily familiarize an applicant and / or student with the internal politics and capabilities of the university. Existing problems in the training system are examined, why distance learning is relevant, what…

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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
12 Pages, 1,714 KB Download PDF

A Novel Hybrid Method for Segmentation and Analysis of Brain MRI for Tumor Diagnosis

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 16–27, 2020; DOI: 10.25046/aj050303
Abstract:

It is difficult to accurately segment brain MRI in the complex structures of brain tumors, blurred borders, and external variables such as noise. Much research in developing as well as developed countries show that the number of individuals suffering tumor of the brain has died as a result of the inaccurate diagnosis. The proposed article,…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Neuroimaging (NUM))
Open AccessArticle
5 Pages, 809 KB Download PDF

Parameter Estimation on Two-Dimensional Advection-Dispersion Model of Biological Oxygen Demand in Facultative Waste Water Stabilization Pond: Case Study at Sewon Wastewater Treatment Facility

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 11–15, 2020; DOI: 10.25046/aj050302
Abstract:

To build a precise mathematical model describing a natural phenomenon, parameter estimation is needed to achieve the best parameter value. In this paper, we have calculated the best parameter value for a two-dimensional advection-dispersion differential equation of the biological oxygen demand degradation process in a facultative wastewater stabilization pond. This research was conducted with case…

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(This article belongs to Section Environmental Engineering (EEV))
Open AccessArticle
10 Pages, 1,288 KB Download PDF

Evaluation of Uncertainty Measurement Calculation for Vector Network Analyzer From 300 kHz to 8.5 GHz

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 01–10, 2020; DOI: 10.25046/aj050301
Abstract:

Increasing the telecommunications products that allow Vector Network Analyzer is becoming more common tools to measure the S-Parameter. It will be an absolute number from the S-Parameter measurements produced in real and imaginary, other words it is also known as the product of the calculation. The calculation findings do not include the systematic and random…

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(This article belongs to Section Manufacturing Engineering (EMF))
Open AccessArticle
9 Pages, 914 KB Download PDF

Low Carbon Sustainable Building Material: Maximizing Slag Potentials for Improved Lime Mortar Mechanical Properties

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 786–794, 2020; DOI: 10.25046/aj050299
Abstract:

Prior to the 19th century discovery of Portland Cement (PC), Lime Based Mortar remained popular due to its flexibility, permeability and more importantly, associated low carbon emissions. However, lime’s characteristic delayed setting/hardening time, low mechanical strength, poor internal cohesion and some volumetric changes have overshadowed significance of its outstanding features particularly, flexibility, and consequently put…

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(This article belongs to Section Civil Engineering (ECV))
Open AccessArticle
7 Pages, 1,364 KB Download PDF

Mobile Based for Basic English Learning Assessment with Augmented Reality

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 774–780, 2020; DOI: 10.25046/aj050297
Abstract:

Nowadays Augmented Reality (AR) is very popular in teaching and learning, especially in leading student to observe learning material targets which supported by online learning resources using mobile device and wireless technology. Because English is a foreign language, most students have problems in learning English. Generally, their problems were related to low motivation, bad study…

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(This article belongs to Section Software Engineering in Computer Science (CSE))
Open AccessArticle
7 Pages, 779 KB Download PDF

Analysis of the Blockchain for Adoption in Electronic Commerce Management in Ecuador

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 762–768, 2020; DOI: 10.25046/aj050295
Abstract:

The document describes the advancement of technology in commercial negotiations and functionality for various electronic transactions in Ecuador, with the aim of analyzing the blockchain and its adoption in managing e-commerce. The quantitative approach with a deductive and descriptive method has been used to identify the benefits in transactional activities and data security, both customers…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
9 Pages, 927 KB Download PDF

A Comprehensive Survey on Image Modality Based Computerized Dry Eye Disease Detection Techniques

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 748–756, 2020; DOI: 10.25046/aj050293
Abstract:

Dry Eye Disease (DED) is one of the commonly occurring chronic disease today, affecting the vision of eye. It causes severe discomfort in eye, visual disturbance and blurred vision impacting the quality of life of patients. Due to recent advancements in Artificial Intelligence (AI) and rapid progress of analytics techniques, several image modality based computerized…

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(This article belongs to Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
9 Pages, 1,157 KB Download PDF

Face Recognition on Low Resolution Face Image With TBE-CNN Architecture

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 730–738, 2020; DOI: 10.25046/aj050291
Abstract:

Face recognition in low resolution images has challenges in active research because face recognition is usually implemented in high resolution images (HR). In general, research leads to a combination of pre-processing and training models. Therefore, this study aims to classify low-resolution face images using a combination of pre-processing and deep learning. In addition, this study…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
6 Pages, 932 KB Download PDF

Comparison of the RC-Triggered MOSFET-Based ESD Clamp Circuits for an Ultra-low Power Sensor System

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 718–723, 2020; DOI: 10.25046/aj050289
Abstract:

This paper uses the RC-triggered MOSFET-based electrostatic discharge (ESD) power clamp to conduct ESD from ESD events and not affect the ultra-low power sensor system. Then using the stacked device include stacked MOSFET or stacked BJT to reduce the leakage current which increases with temperature. Moreover, we compare gate-driven method and two-level–driven with both gate-driven…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
9 Pages, 1,350 KB Download PDF

ROS Based Multimode Control of Wheeled Robot

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 688–696, 2020; DOI: 10.25046/aj050285
Abstract:

This research work mainly presents the design and development of a small-scaled wheeled robot, which can be controlled using multiple controlling interfaces using some new technological trends. Raspberry Pi 3 as the main controller, Python as the programming language integrated with the Robot Operating System (ROS) and Virtual Network Computing (VNC) for screen sharing are…

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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
10 Pages, 796 KB Download PDF

Analysis of Vulnerabilities, Risks and Threats in the Process of Quota Allocation for the State University of Ecuador

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 673–682, 2020; DOI: 10.25046/aj050283
Abstract:

Different models and standards of information security were analyzed, to adopt a model that mitigates vulnerabilities, risks and threats in the quota allocation process for the State University in Ecuador. The main objective is defining a prototype for the management of processes and information security in this type of organization. It was used the deductive…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
8 Pages, 3,086 KB Download PDF

A Resolution-Reconfigurable Asynchronous SAR ADC with Segmented and Non-Binary Weighted Capacitance DACs

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 665–672, 2020; DOI: 10.25046/aj050282
Abstract:

With the addition of thing of internet applications to 5G smartphones, mobile standby time and ultra-low-power sensing systems have become increasingly important. Nowadays, such sensing systems typically reduce power consumption to microwatts. This paper presents segmented and non-binary weighted capacitance DACs, low power, high resolution, an asynchronous clock, a spark-detect, vcm-based switching and direct switching,…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
11 Pages, 1,290 KB Download PDF

Activerest: Design of A Graphical Interface for the Remote use of Continuous and Holistic Care Providers

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 635–645, 2020; DOI: 10.25046/aj050279
Abstract:

One of the most prevalent physical limitations of both aging and accidents is immobility. Being bedridden requires great care to avoid the formation of pressure ulcers. Thus, the ‘ActiveRest’ project aimed to develop a textile mattress guard that will contribute to the prevention of pressure ulcers. This textile mattress guard integrates a monitoring system, based…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Bioinformatics (BIF))
Open AccessArticle
9 Pages, 2,132 KB Download PDF

Analysis of Two-Dimensional Electron Gas Formation in InGaAs-Based HEMTs

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 597–605, 2020; DOI: 10.25046/aj050275
Abstract:

In this study, a theoretical simulation was performed using the Schrodinger-Poisson method to elucidate the formation factors for two-dimensional electron gas in InGaAs-based HEMTs. No visible change was observed in the carrier density and the potential shape. The inflection point of the energy level and the agreement of the energy level in each dimension were…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
11 Pages, 959 KB Download PDF

Securing Hybrid SDN-based Geographic Routing Protocol using a Distributed Trust Model

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 567–577, 2020; DOI: 10.25046/aj050271
Abstract:

In this paper, the vulnerabilities and the security attacks against vehicular networks, SDN architecture and some security solutions for SDVN are studied. Secondly, a complete and improved version of the secure HSDN-GRA routing protocol based on a distributed trust model is proposed where public keys of the vehicles are managed in a distributed way. Besides,…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
6 Pages, 936 KB Download PDF

Minimizing the Cleaning Cost in Flash Based Storage Sub-Systems by Proliferating the Valid Data Copying Process

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 561–566, 2020; DOI: 10.25046/aj050270
Abstract:

Flash memory reliability and the performance have been confirmed as an improvement in the storage subsystem technological advancement, especially in supporting an embedded system solution. Conversely, the main constraint of the storage device is the erase-before-write characteristic in handling both write and re-write I/O operations. More attention must be taken into consideration to handle both…

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(This article belongs to Section Hardware & Architecture in Computer Science (CHA))
Open AccessArticle
10 Pages, 1,105 KB Download PDF

Approach to Combine an Ontology-Based on Payment System with Neural Network for Transaction Fraud Detection

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 551–560, 2020; DOI: 10.25046/aj050269
Abstract:

Fraud, as regards means of payment, means the behavior of any legal or natural one that makes an abnormal or irregular use of a way of payment, elements of it or information contained therein, to improperly obtain an honest, service or enrichment, and or causing financial damage to the one that has distributed the means…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
6 Pages, 1,299 KB Download PDF

The Capacity Factor of Renewable Energy Power Plants During Electric Power Peak Times in Jeju Island

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 545–550, 2020; DOI: 10.25046/aj050268
Abstract:

Jeju Island is the largest island of South Korea and has an independent electric supply system. The island has a special energy plan that realizes itself a carbon-free region by 2030. Wind and solar energy resources are considered as an important means. The introduction of weather-variable renewable energy generation sources into the electric power system…

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(This article belongs to the SP9 (Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020) & Section Electrical Engineering (ELE))
Open AccessArticle
10 Pages, 2,241 KB Download PDF

A Simple Modelling Tool for Fast Combined Simulation of Interconnections, Inter-Symbol Interference and Equalization in High-Speed Serial Interfaces for Chip-to-Chip Communications

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 527–536, 2020; DOI: 10.25046/aj050266
Abstract:

We describe an efficient system-level simulator that, starting from the architecture of a well-specified transmissive medium (a channel modelled as single-ended or coupled differential microstrips plus cables) and including the system-level characteristics of transmitter and receiver (voltage swing, impedance, etc.), computes the eye diagram and the bit-error rate that is obtained in high-speed serial interfaces.…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Electronic Engineering (EEE))
Open AccessArticle
10 Pages, 7,929 KB Download PDF

Interaction Model and Respect of Rules to Enhance Collaborative Brainstorming Results

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 484–493, 2020; DOI: 10.25046/aj050262
Abstract:

This paper presents a collaborative interaction model (CIAO) and several behaviour rules that could enhance brainstorming results. The model is composed of five elements which may be used during brainstorming sessions, consisting of activities performed by partici- pants which are characteristic of different modes of interaction. Some sequences of these interactions may be considered more…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Engineering Management (EMM))
Open AccessArticle
8 Pages, 1,473 KB Download PDF

Object Classifications by Image Super-Resolution Preprocessing for Convolutional Neural Networks

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 476–483, 2020; DOI: 10.25046/aj050261
Abstract:

Blurred small objects produced by cropping, warping, or intrinsically so, are challenging to detect and classify. Therefore, much recent research is focused on feature extraction built on Faster R-CNN and follow-up systems. In particular, RPN, SPP, FPN, SSD, and DSSD are the layered feature extraction methods for multiple object detections and small objects. However, super-resolution…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
8 Pages, 971 KB Download PDF

A Comparative Analysis of ARIMA and Feed-Forward Neural Network Prognostic Model for Bull Services

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 411–418, 2020; DOI: 10.25046/aj050253
Abstract:

Bull service is the natural copulation by a purebred male carabao with a female counterpart. This is part of the bull loan agenda of the Philippine Carabao Center-Visayas State University (PCC-VSU), one of the 12 regional centers of PCC. For the past years, PCC-VSU used averaging of bull services count of previous years and sometimes…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
6 Pages, 601 KB Download PDF

Hybrid Autogyro: Model and Longitudinal Control for Wind Gust Energy Conversion Using Autorotation

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 393–398, 2020; DOI: 10.25046/aj050251
Abstract:

In the new technologies for producing electricity from wind gusts, a new class of wind power converter has been proposed. The hybrid autogyro uses the principle of autorotation to generate lift. This paper proposes to take advantage of this rotation to also generate energy. There are systems that use flying wings or airplanes to reach…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Aerospace Engineering (EAR))
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