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Open AccessArticle
8 Pages, 817 KB Download PDF

An Efficient Performance of OFDM-Shaped Symbol for 5G Green Communication Compared to FBMC

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 6, Page # 1163–1170, 2020; DOI: 10.25046/aj0506140
Abstract:

The filter bank multi-carrier (FBMC) technique is being considered as the major candidates for the 5G schemes. The orthogonal frequency division multiplexing (OFDM) technique is used in 4G but it has drawbacks such as higher Out-of-Band (OOB) power reduction, and higher peak to average power ratio (PAPR). OFDM uses cyclic prefix (CP) extension to overcome…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
7 Pages, 7,201 KB Download PDF

Projection of Wireless Multipath Clusters Using Multi-Dimensional Visualization Techniques

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 6, Page # 1064–1070, 2020; DOI: 10.25046/aj0506129
Abstract:

Advances in channel modeling allow wireless communication designers to accurately model and understand the channel’s phenomena within different propagation scenarios. A precise channel model results in the wireless system’s optimized performance while considering trade-offs due to the effects of the channel. The geometric-based stochastic channel model considers different interacting objects affecting the parameters using the…

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(This article belongs to Section Telecommunications (TEL))
Open AccessArticle
7 Pages, 592 KB Download PDF

Ontology-based Data Management Tool for Studying Radon Concentration

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 6, Page # 577–583, 2020; DOI: 10.25046/aj050670
Abstract:

Interpreting data for solving information needs demands an understanding of the semantics of row data. In this paper, an ontology-driven management of data of the presence of radon gas in soil is presented. The main contribution of this research relies on the formal definition of the semantic of the presence of radon in the dimensions…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
10 Pages, 4,440 KB Download PDF

Trace-Driven Simulation of LoRaWAN Air Channel Propagation in an Urban Scenario

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 6, Page # 211–220, 2020; DOI: 10.25046/aj050625
Abstract:

Long-range, Low-Power Wide Area Network (LoRaWAN) is a very scalable solution for the Internet of Things (IoT). Due to the air channel environment’s complexity, connectivity is a crucial parameter for successfully planning and deploying the IoT networks. Measurements and simulations have been used to evaluate LoRaWAN propagation models in the Urban environment, but it is…

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(This article belongs to the Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020 & Section Network Engineering (ENW))
Open AccessArticle
6 Pages, 529 KB Download PDF

VLSI Architecture for OMP to Reconstruct Compressive Sensing Image

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 5, Page # 1050–1055, 2020; DOI: 10.25046/aj0505129
Abstract:

A real-time embedded system requires plenty of measurements to fallow the Nyquist criteria. The hardware built for such a large number of measurements, is facing the challenges like storage and transmission rate. Practically it is very much complex to build such costly hardware. Compressive Sensing (CS) will be a future alternate technique for the Nyquist…

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(This article belongs to the Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020 & Section Electronic Engineering (EEE))
Open AccessArticle
11 Pages, 1,757 KB Download PDF

Neural Network-Based Fault Diagnosis of Joints in High Voltage Electrical Lines

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 4, Page # 488–498, 2020; DOI: 10.25046/aj050458
Abstract:

In this paper a classification system based on a complex-valued neural network is used to evaluate the health state of joints in high voltage overhead transmission lines. The aim of this method is to prevent breakages on the joints through the frequency response measurements obtained at the initial point of the network. The specific advantage…

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(This article belongs to the Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020 & Section Electronic Engineering (EEE))
Open AccessArticle
16 Pages, 1,504 KB Download PDF

A Survey on 3D Hand Skeleton and Pose Estimation by Convolutional Neural Network

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 4, Page # 144–159, 2020; DOI: 10.25046/aj050418
Abstract:

Restoring, estimating the fully 3D hand skeleton and pose from the image data of the captured sensors/cameras applied in many applications of computer vision and robotics: human-computer interaction; gesture recognition, interactive games, Computer-Aided Design (CAD), sign languages, action recognition, etc. These are applications that flourish in Virtual Reality and Augmented Reality (VR/AR) technologies. Previous survey…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
9 Pages, 2,044 KB Download PDF

Monte Carlo Estimation of Dose in Heterogeneous Phantom Around 6MV Medical Linear Accelerator

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 478–486, 2020; DOI: 10.25046/aj050359
Abstract:

In this work, we completed a validation of the Varian Clinac IX equipped with the High Definition Multi-Leaf Collimator (HD 120 MLC) instead of the removable jaws, using GATE Monte Carlo Platform version 8.2. We validated the multileaf collimator (MLC) geometry by simulating two dosimetric functions (Percentage Depth Dose (PDD) and Dose Profile (DP)), for…

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(This article belongs to the Special Issue on Innovative Research in Applied Science, Engineering and Technology 2020 & Section Radiology (RIO))
Open AccessArticle
12 Pages, 627 KB Download PDF

Degradation Process in Pipeline and Remaining Useful Lifetime Estimation Based on Extended Kalman Filtering

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 457–468, 2020; DOI: 10.25046/aj050357
Abstract:

Degradation measurements are often treated and analyzed for improvement the reliability of system. Our objective in this paper is to study a class of non linear systems, whose dynamics and observations are non linear functions of the state. Obviously, we develop an Extended Kalman Filtering (EKF) algorithm for detecting the additive failures in a two…

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(This article belongs to Section Automation & Control Systems (ACS))
Open AccessArticle
10 Pages, 1,479 KB Download PDF

Evaluation of Type A Uncertainty in a Network Analyzer From 300 kHz to 8.5 GHz

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 226–235, 2020; DOI: 10.25046/aj050329
Abstract:

Network Analyzer is equipment widely used for the execution of radio frequency application scattering parameters. Throughout absolute reading the scattering parameter measured. An absolute reading does not include error, drift, offset, linearity, resolution, coefficient of sensitivity and several other variables that will contribute to the measured measurement dispersion. Type A evaluations of measurement uncertainty clarified…

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(This article belongs to Section Manufacturing Engineering (EMF))
Open AccessArticle
8 Pages, 1,241 KB Download PDF

Non Parallelism and Cayley-Menger Determinant in Submerged Localization

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 150–157, 2020; DOI: 10.25046/aj050320
Abstract:

This research paper portraits the technique to determine location of submerged nodes with Cayley-Menger determinant and associated problems with non-parallel states. Cayley-Menger determinant is considered to be the usual means to determine the coordinates of the nodes with a single node where the plane of beacon i.e. beacon’s surfing plane and the plane created by…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2019-20 & Section Network Engineering (ENW))
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
5 Pages, 699 KB Download PDF

Actigraph Analysis of Elderly Dementia Patients During Phototherapy Using Non-Linear Analysis

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 757–761, 2020; DOI: 10.25046/aj050294
Abstract:

Dementia is one of the three primary diseases that increases the level of nursing care required for the elderly. Dementia can lead to an increased burden not only on those who have contracted it, but also their families and the surrounding environment; initiatives for preventing dementia and slowing the decline of cognitive function are expected…

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(This article belongs to Section Biomedical Engineering (EBI))
Open AccessArticle
8 Pages, 964 KB Download PDF

Optimization of Low Temperature Differential Stirling Engine Regenerator Design

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 272–279, 2020; DOI: 10.25046/aj050235
Abstract:

Stirling engines working with relatively low temperature are attractive for the future, especially for applications like water pumping without concentration system and low temperature heat recovery. The present work is the continuation of a series of works on the optimization of this type of machines. The main objective of this paper is to investigate the…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2019-20 & Section Thermodynamics (THD))
Open AccessArticle
8 Pages, 1,934 KB Download PDF

An Algorithm to Improve Data Accuracy of PMs Concentration Measured with IoT Devices

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 180–187, 2020; DOI: 10.25046/aj050223
Abstract:

Air pollution is responsible for increased morbidity and mortality due to respiratory problems mainly caused by long term exposure. Although the emissions of principal air pollutants are highly regulated, there is a lack of information about the real extent of personal exposure for an accurate health impact assessment. To tackle these challenges, local air pollution…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2019-20 & Section Environmental Engineering (EEV))
Open AccessReview
9 Pages, 638 KB Download PDF

Review on Outliers Identification Methods for Univariate Circular Biological Data

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 95–103, 2020; DOI: 10.25046/aj050212
Abstract:

Circular data are common in biological studies which are involved angle and direction measurements. An outlier in circular biological data mostly related to the abnormality of the data set. The existence of outliers may affect the final outcome of a data analysis. Thus, an outliers’ identification method is essential in circular biological data to determine…

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(This article belongs to Section Statistics & Probability (STP))
Open AccessArticle
8 Pages, 4,006 KB Download PDF

SiC-FET Gas Sensor for Detecting Sub-ppm Gas Concentrations

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 1, Page # 151–158, 2020; DOI: 10.25046/aj050120
Abstract:

This paper describes a silicon carbide-field effect transistor (SiC-FET) gas sensor that is able to detect NO, O2, NH3, CO, and SO2. The gate of the sensor FET is a gas detection layer that consists of yttria-stabilized zirconia, nickel oxide, and platinum. The threshold voltages of the sensor depend on the target gas concentration, measurement…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2019-20 & Section Electronic Engineering (EEE))
Open AccessArticle
9 Pages, 541 KB Download PDF

SCMS: Tool for Assessing a Novel Taxonomy of Complexity Metrics for any Java Project at the Class and Method Levels based on Statement Level Metrics

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 220–228, 2019; DOI: 10.25046/aj040629
Abstract:

Software is the primary and indispensable entity in our technologically driven world. Therefore, quality assurance, and in particular software testing, represents a vital component in the software development cycle. Throughout the years, many tools have been developed to collect metrics of software that had been implemented. These tools have some differences but continue to play…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2019-20 & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
9 Pages, 5,642 KB Download PDF

A Proposal of TCP Fairness Control Method for Two-Host Concurrent Communications in Elastic WLAN System Using Raspberry Pi Access-Point

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 10–18, 2019; DOI: 10.25046/aj040602
Abstract:

The IEEE802.11n based Wireless Local Area Networks (WLANs) have been extensively deployed due to the flexible coverage, the easy installation, and the lower cost. To reduce the energy consumption while increasing the performance, the elastic WLAN system has been studied, such that it can dynamically change the network configuration according to traffic demands. As well,…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2019-20 & Section Network Engineering (ENW))
Open AccessArticle
9 Pages, 1,450 KB Download PDF

Localization of Emerging Leakages in Water Distribution Systems: A Complex Networks Approach

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 276–284, 2019; DOI: 10.25046/aj040435
Abstract:

Water distribution networks are infrastructural systems designed for providing potable water to consumers. In these last decades, the importance of assessing and identifying emerging leakages has become a primary issue, because of the high level of water loss characterizing such systems worldwide. In this paper, a new approach aimed at the prompt localization of leakages…

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(This article belongs to the Special Issue on Advancement in Engineering and Computer Science 2019 & Section Water Resources (WRS))
Open AccessArticle
6 Pages, 1,188 KB Download PDF

High-Temperature Optical Characterization of Wide Band Gap Light Emitting Diodes and Photodiodes for Future Power Module Application

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 17–22, 2019; DOI: 10.25046/aj040203
Abstract:

A systematic study of wide bandgap (WBG) based light emitting diodes (LEDs) and photodiodes (PDs) were conducted for the assessment of modular integration of optoelectronic devices into power modules. The temperature dependence of the photoluminescence (PL) efficiency of Indium gallium nitride/Gallium nitride (InGaN/GaN) multiple quantum wells (MQWs) material was studied from 10 to 800 K.…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Optics (OPT))
Open AccessArticle
10 Pages, 3,798 KB Download PDF

Over-The-Air Testing of Automotive Antennas and Wireless Links in The Installed State on The Basis of LTE Downlink Communication Parameters

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 282–291, 2019; DOI: 10.25046/aj040127
Abstract:

Modern automobiles have been turning more and more into wireless sensor and communication networks. Accordingly, the number of radio systems is steadily increasing. Due to strict safety requirements, these radio systems need to be tested extensively for functionality and reliability, especially under poor radio channel conditions. Beside the large electrical size of cars at frequencies…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Telecommunications (TEL))
Open AccessArticle
11 Pages, 1,440 KB Download PDF

Fuzzy Logic Implementation for Enhanced WCDMA Network Using Selected KPIs

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 114–124, 2019; DOI: 10.25046/aj040112
Abstract:

The paper focused on the implementation of fuzzy logic technology for improved Wideband Code Division Multiple Access (WCDMA) network using selected Key Performance Indicators (KPIs). Empirical and analytical methods were principally deployed for the study analyses. Empirical analyses were conducted on two designated networks which are MTN and AIRTEL observed with high network traffic to…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
10 Pages, 701 KB Download PDF

Machine Learning Applied to GRBAS Voice Quality Assessment

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 329–338, 2018; DOI: 10.25046/aj030641
Abstract:

Voice problems are routinely assessed in hospital voice clinics by speech and language therapists (SLTs) who are highly skilled in making audio-perceptual evaluations of voice quality. The evaluations are often presented numerically in the form of five-dimensional ‘GRBAS’ scores. Computerised voice quality assessment may be carried out using digital signal processing (DSP) techniques which process…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2018 & Section Acoustics (ACO))
Open AccessArticle
10 Pages, 1,517 KB Download PDF

Computational Techniques to Recover Missing Gene Expression Data

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 233–242, 2018; DOI: 10.25046/aj030630
Abstract:

Almost every cells in human’s body contain the same number of genes so what makes them different is which genes are expressed at any time. Measuring gene expression can be done by measuring the amount of mRNA molecules. However, it is a very expensive and time consuming task. Using computational methods can help biologists to…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2018 & Section Artificial Intelligence in Computer Science (CAI))

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