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Open AccessArticle
7 Pages, 2,024 KB Download PDF

Frequency-Tunable Narrow-Band Ladder-Shape Microstrip Patch Antenna for TV Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 51–57, 2019; DOI: 10.25046/aj040407
Abstract:

In this paper, a frequency-tunable antenna is proposed based on a previous antenna which has a ladder shape and a size of 120 x 50 mm2. It is fed using a coaxial cable and it is operational at 700 MHz which is in the UHF band with a bandwidth of 30 MHz. Varactors, having a…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Telecommunications (TEL))
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
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
13 Pages, 1,696 KB Download PDF

Study of Performance of Bio- Inspired Strategies Applied to Pursuit Evasion Game Under Feedback Laws

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 207–219, 2019; DOI: 10.25046/aj040328
Abstract:

Pursuit Evasion Game (PEG) is an abstract model of various significant problems that appear in both civil and military applications. Bio- Inspired strategies are found to be very useful in studying the PEG. While optimal response to the pursuit strategies are available using geometric control theory, it is shown in this paper that application of…

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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
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
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
6 Pages, 716 KB Download PDF

Multimedia Application Development With Islamic Critical Reflection Through 3-2-1 Technique for Novice Teacher Internship Program

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 100–105, 2019; DOI: 10.25046/aj040314
Abstract:

The use of technology in the learning process has become the most significant point in helping teachers reaching the objectives of the learning. This study focuses on the use of multimedia by novice teachers in comprehending the internship program’s guidance. The Islamic Critical Reflection model is a new and innovative model in the field of…

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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, 1,786 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
6 Pages, 678 KB Download PDF

An Immutable Algorithm Approach to Improve the Information Security of a Process for a Public Organization of Ecuador

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 25–30, 2019; DOI: 10.25046/aj040304
Abstract:

Currently, information security is among the main characteristics that must be achieved within the security of private and public organizations worldwide. For this reason, globally recognized algorithms such as the AES, IDEA, RC5, DES, RSA are researched with the aim of identifying the most suitable and obtaining a greater degree of security and speed of…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
6 Pages, 712 KB Download PDF

Microstrip Patch Antenna for Ultra-Wideband Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 3, Page # 10–15, 2019; DOI: 10.25046/aj040302
Abstract:

A new microstrip patch antenna for ultra-wideband applications is presented in this paper. The design and performance of the antenna component are discussed. The propounded antenna is mounted on a compact FR-4 substrate having dimensions 20 x 30 x 1.6 mm3 with relative permittivity εr=4.3. The rectangular patch antenna is slotted with two types; rectangular…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Telecommunications (TEL))
Open AccessArticle
7 Pages, 813 KB Download PDF

Application of The Half-Sweep Egsor Iteration for Two-Point Boundary Value Problems of Fractional Order

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 237–243, 2019; DOI: 10.25046/aj040231
Abstract:

The point of this study is to explore and elucidating the performance of the four-point Half-Sweep EGSOR (4HSEGSOR) iterative method to solve fractional two-point boundary value problems by using Caputo’s fractional operator and family of finite differences (FD) schemes. To apply the iterative methods, linear system needs to be constructed via the discretization process with…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Applied Mathematics (MAP))
Open AccessArticle
8 Pages, 1,040 KB Download PDF

Parallel Hybrid Testing Tool for Applications Developed by Using MPI + OpenACC Dual-Programming Model

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 203–210, 2019; DOI: 10.25046/aj040227
Abstract:

Building massively parallel applications has become increasingly important with coming Exascale related technologies. For building these applications, a combination of programming models is needed to increase the system’s parallelism. One of these combinations is the dual-programming model (MPI+X) which has many structures that increase parallelism in heterogeneous systems that include CPUs and GPUs. MPI +…

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(This article belongs to Section Software Engineering in Computer Science (CSE))
Open AccessArticle
7 Pages, 578 KB Download PDF

Automatic Stitching of Medical Images Using Feature Based Approach

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 127–133, 2019; DOI: 10.25046/aj040217
Abstract:

Image stitching is a process of creating a panoramic image by combining multiple images that have overlapping regions of the same scene. It is a challenging topic in image processing, multimedia, and medical applications. The proposed system can be applied in medical applications for scoliosis operations and other long limb operations. The problem of the…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Bioinformatics (BIF))
Open AccessArticle
5 Pages, 1,597 KB Download PDF

Design and Analysis of 32-bit Parallel Prefix Adders for Low Power VLSI Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 102–106, 2019; DOI: 10.25046/aj040213
Abstract:

The basic processes like addition, subtraction can be done using various types of binary adders with dissimilar addition times (delay), area and power consumption in any digital processing applications. To minimize the Power Delay Product (PDP) of Digital Signal Processing (DSP) processors is necessary for high performance in Very Large Scale Integration (VLSI) applications. In…

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(This article belongs to Section Electronic Engineering (EEE))
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
5 Pages, 1,183 KB Download PDF

Novel CPW-fed UWB antenna for X-band applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 78–82, 2019; DOI: 10.25046/aj040210
Abstract:

An ultra-wideband (UWB) printed antenna (PMA) powered by a compact coplanar waveguide (CPW) is featured. The propounded antenna is supposed to cover the UWB range from 7 GHz to 10 GHz, with return loss values below -10 dB in the whole frequency range, for X-band applications, often used for dense satellite communications. The 30 x…

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(This article belongs to the isaect-18 (Special Issue on Advanced Electrical and Communication Technologies 2019) & Section Telecommunications (TEL))
Open AccessArticle
5 Pages, 1,398 KB Download PDF

Coupling of Local and Global Quantities by A Subproblem Finite Element Method – Application to Thin Region Models

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 40–44, 2019; DOI: 10.25046/aj040206
Abstract:

A method for coupling of local and global fields related to currents, voltages and magnetic fields in magnetodynamic problems is developed in the frame of the finite subproblem finite element method. The method allows to correct the errors arising from thin conducting regions, that replace volume thin regions by surfaces but neglect border effects in…

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(This article belongs to Section Electrical Engineering (ELE))
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 SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Optics (OPT))
Open AccessArticle
12 Pages, 700 KB Download PDF

Application Layer Security Authentication Protocols for the Internet of Things: A Survey

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 317–328, 2019; DOI: 10.25046/aj040131
Abstract:

Network security challenges due to nearly limitless internet connectivity, platform limitations, ubiquitous nodal mobility and huge data transactions is burgeoning by the day and the need for transcend Internet of Things (IoT) based cloud security authentication protocols is on an exponential rise. Even though many secure classic layered security mechanisms are available for implementation, they…

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(This article belongs to Section Cybernetics in Computer Science (CCY))
Open AccessArticle
14 Pages, 1,361 KB Download PDF

Strategies of the Level-By-Level Approach to the Minimal Route

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 268–281, 2019; DOI: 10.25046/aj040126
Abstract:

The task of optimal path planning for drilling tool with numerical control is considered. Such tools are used in the production of printed circuit boards. The algorithm modification of level-by-level route construction for the approximate solution of the traveling salesman problem is discussed. Bypass objects can be specified either as a table of distances or…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
10 Pages, 1,537 KB Download PDF

Performance Investigation of Semiconductor Devices using Commutation-speed based methodology for the application of Boost Power Factor Correction

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 258–267, 2019; DOI: 10.25046/aj040125
Abstract:

In this paper, behavioral approach has been adopted for the calculation of total power losses that has been further used to derive an analytical model for the conduction and switching losses in a boost Power Factor Correction (PFC) stage of an On-board Charger (OBC). Detailed investigation of power losses can help in finding out ways…

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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
17 Pages, 1,804 KB Download PDF

Development of Application Specific Electronic Nose for Monitoring the Atmospheric Hazards in Confined Space

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 200–216, 2019; DOI: 10.25046/aj040120
Abstract:

The presence of atmospheric hazards in confined space can contribute towards atmospheric hazards accidents that threaten the worker safety and industry progress. To avoid this, the environment needs to be observed. The air sample can be monitored using the integration of electronic nose (e-nose) and mobile robot. Current technology to monitor the atmospheric hazards is…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
8 Pages, 1,050 KB Download PDF

Hypervolume-Based Multi-Objective Reinforcement Learning: Interactive Approach

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 93–100, 2019; DOI: 10.25046/aj040110
Abstract:

In this paper, we propose a procedure of interactive multi-objective reinforcement learning for multi-step decision problems based on the preference of a decision maker. The proposed method is constructed based on the multi-objective reinforcement learning which is applied to multi-step multi-objective optimization problems. The existing literature related to the multi-objective reinforcement learning indicate that the…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
5 Pages, 1,017 KB Download PDF

Morphological and Optoelectrical Characterization of Silicon Nanostructures for Photovoltaic Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 45–49, 2019; DOI: 10.25046/aj040106
Abstract:

Metal (silver)-Assisted Chemical Etching (MACE) method is used to fabricate silicon nanostructures like silicon nanowires (SiNWs) and silicon nanocones (SiNCs). The morphological characterization of fabricated SiNWs has shown that 5 minutes is the optimal time of silver deposition on silicon substrate. Silicon nanocones (SiNCs) were also fabricated by etching vertical SiNWs with a AgNO3=HF=H2O2 solution.…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Multidisciplinary Materials Science (MMU))
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