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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
10 Pages, 544 KB Download PDF

Observing and Forecasting the Trajectory of the Thrown Body with use of Genetic Programming

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 248–257, 2019; DOI: 10.25046/aj040124
Abstract:

Robotic catching of thrown objects is one of the common robotic tasks, which is explored in a number of papers. This task includes subtask of tracking and forecasting the trajectory of the thrown object. Here we propose an algorithm for estimating future trajectory based on video signal from two cameras. Most of existing implementations use…

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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
17 Pages, 4,140 KB Download PDF

Critical Embedded Systems Development Using Formal Methods and Statistical Reliability Metrics

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 231–247, 2019; DOI: 10.25046/aj040123
Abstract:

Trusted systems are becoming more integrated into everyday life. Security and reliability are at the forefront of trusted system design and are often directed at hardware-only solutions, especially for safety critical systems. This is because hardware has a well-established process for achieving strong, precise, and reliable systems. These attributes have been achieved in the area…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
10 Pages, 1,027 KB Download PDF

Enhancing and Monitoring Patient Outcomes Through Customized Learning

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 183–192, 2019; DOI: 10.25046/aj040118
Abstract:

Chronic diseases such as heart disease, cancer, diabetes, and asthma continue to increase in the general public within the modern era. With careful observation of the symptoms potential diseases may be detected early and managed properly. For that to happen, the awareness of the symptoms and proper knowledge about the diseases may be needed for…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Bioinformatics (BIF))
Open AccessArticle
12 Pages, 1,034 KB Download PDF

A Novel Pulse Position Modulator for Compressive Data Acquisition

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 171–182, 2019; DOI: 10.25046/aj040117
Abstract:

This work extends the development of the nonuniform Parallel Digital Ramp Pulse Position Modulation Analog-to-Digital Converter (PDRADC) architecture. The continuous to discrete transform of the PDRADC is achieved by partitioning the signal amplitude axis into P nonoverlapping partitions that sample the analog input at input signal driven instances. Each partition contains L uniform levels with…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Electronic Engineering (EEE))
Open AccessArticle
18 Pages, 592 KB Download PDF

Can parallelization save the (computing) world?

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 141–158, 2019; DOI: 10.25046/aj040114
Abstract:

As all other laws of the growth in computing, the growth of computing performance also shows a ”logistic curve”-like behavior, rather than an unlimited exponential growth. The stalling of the single-processor performance experienced nearly two decades ago forced computer experts to look for alternative methods, mainly for some kind of parallelization. Solving the task needs…

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(This article belongs to Section Theory & Methods in Computer Science (CTM))
Open AccessArticle
16 Pages, 1,044 KB Download PDF

Conducted and Radiated Interference on Interconnection’s Lines

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 125–140, 2019; DOI: 10.25046/aj040113
Abstract:

There exists a profound difficulty of communication between the people that works in the EMC area in circuit terms and the people that works in field terms. In this paper we show that when the matter is predominantly distributed along a certain direction in space, as for transmission lines, the electromagnetic field can be divided…

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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
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
11 Pages, 4,293 KB Download PDF

State Estimation based Echolocation Bionics and Image Processing based Target Pattern Recognition

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 73–83, 2019; DOI: 10.25046/aj040108
Abstract:

This paper deals with the theoretical aspect of bat echolocation and bionics, and image processing-based target recognition and identification methods. The state estimation methods utilizing the linear rustic filters such as fixed gain and Kalman filters are studied and implemented for echolocation bionics for estimating the LOS distance. A complete mathematical modeling and simulation of…

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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
23 Pages, 28,936 KB Download PDF

Extending the Life of Legacy Robots: MDS-Ach via x-Ach

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 50–72, 2019; DOI: 10.25046/aj040107
Abstract:

Our work demonstrates how to use contemporary software tools on older or “legacy” robots while keeping compatibility with the original control, tools, and calibration procedures. This is done by implementing a lightweight middle-ware called MDS-Ach connected directly to the hardware communications layer of the robot’s control system. The MDS-Ach middle-ware, which relies on the x-Ach…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Robotics (ROB))
Open AccessArticle
5 Pages, 738 KB Download PDF

A Proposed Architecture for Parallel HPC-based Resource Management System for Big Data Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 40–44, 2019; DOI: 10.25046/aj040105
Abstract:

Big data can be considered to be at the forefront of the present and future research activities. The volume of data needing to be processed is growing dramatically in both velocity and variety. In response, many big data technologies have emerged to tackle the challenges of collecting, processing and storing such large-scale datasets. High-performance computing…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
13 Pages, 1,118 KB Download PDF

A Practical PIR-based Scheme for Discovering Nearby Places for Smartphone Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 27–39, 2019; DOI: 10.25046/aj040104
Abstract:

We present a privacy-preserving approach for discovering nearby places of interest to Alice. In this approach, the proposed protocol allows Alice to learn whether there is any place that she is looking for near her. However, the location-based service (LBS) that tries to help Alice to find nearby places does not learn Alice’s location. Alice…

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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, 3,648 KB Download PDF

A Wearable Exoskeleton Rehabilitation Device for Paralysis – A Comprehensive Study

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 17–26, 2019; DOI: 10.25046/aj040103
Abstract:

As the technology grows scientists and engineers are trying to combine their work to compensate some body parts that is lost. Prosthetic devices grabbed the attention of most of the doctors and engineers working on solution for lost body parts. Generally prosthetic devices are either external wearable devices or internal ones. Such devices may depend…

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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
14 Pages, 4,604 KB Download PDF

Building an Online Interactive 3D Virtual World for AquaFlux and Epsilon

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 501–514, 2018; DOI: 10.25046/aj030659
Abstract:

In today’s technology, 3D presentation is vital in conveying a realist and comprehensive understanding of a specific notion or demonstrating certain functionality for a specific device or tool, especially on the World Wide Web. Therefore, the importance of this field and how its continuous enhancement has become one of the dominant topics in web development…

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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
7 Pages, 1,429 KB Download PDF

Perfect Molding Challenges and The Limitations “A Case Study”

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 489–495, 2018; DOI: 10.25046/aj030657
Abstract:

Driven by today’s market demand, semiconductor is pushing towards the zero-defect direction. The improvement demanded in semiconductor manufacturing is becoming increasingly challenging. In this paper, common molding defects comprise of voids, incomplete fills, and piping holes are studied systematically, focusing on three key areas: 1) Potential mold flow weakness; 2) Molding temperature stability; as well…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Manufacturing Engineering (EMF))
Open AccessArticle
14 Pages, 2,221 KB Download PDF

Simulation-Optimisation of a Granularity Controlled Consumer Supply Network Using Genetic Algorithms

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 455–468, 2018; DOI: 10.25046/aj030654
Abstract:

The decision support systems regarding the Supply Chains (SCs) management services can be significantly improved if an effective viable method is utilised. This paper presents a robust simulation optimisation approach (SOA) for the design and analysis of a granularity controlled and complex system known as Consumer Supply Network (CSN) incorporating uncertain demand and capacity. Minimising…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Industrial Engineering (EID))
Open AccessArticle
8 Pages, 798 KB Download PDF

Study on CD ROADM Contention Blocking

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 438–445, 2018; DOI: 10.25046/aj030652
Abstract:

Service providers are transferring their static optical transport networks from semi-permanent connections to agile automatic switched optical networks (ASON) with dynamic optical connection provisioning and restoration. To achieve this goal, service providers are looking for flexible optical network ROADMs with CDC capabilities. Although many contention scenarios during network connection provisioning and restoration have been illustrated,…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Telecommunications (TEL))
Open AccessArticle
13 Pages, 5,415 KB Download PDF

Two Degree-of-Freedom Vibration Control of a 3D, 2 Link Flexible Manipulator

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 412–424, 2018; DOI: 10.25046/aj030649
Abstract:

Considering link vibrations, the main limitation affecting flexible manipulators, this article seeks to make a contribution by presenting an enhanced two degree of freedom vibration controller. This controller uses a filtered right inverse controller in the feedforward and strain feedback controller in the feedback path. The Filtered inverse controller damps transient vibrations while preserving joint…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Mechanical Engineering (EMH))
Open AccessArticle
5 Pages, 812 KB Download PDF

Metaheuristics for Solving Facility Location Optimization Problem in Lagos, Nigeria

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 319–323, 2018; DOI: 10.25046/aj030639
Abstract:

Facility location problem is a problem that many organizations still face today because of its increasing constraints and objectives. Decision makers want this problem solved in order to maximize profit and as such, it became a field of interest to many computer scientists over the years. The solution tool used by these scientists; a function…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Operations Research & Management Science (ORM))
Open AccessArticle
25 Pages, 2,086 KB Download PDF

An Empirical Study of Icon Recognition in a Virtual Gallery Interface

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 289–313, 2018; DOI: 10.25046/aj030637
Abstract:

This paper reports on an empirical study (an extension of a pilot study) that analyses the design of icons in a German 3-D virtual art gallery interface. It evaluates the extent to which a sample of typical computer users from a range of ages, educational attainments and employments can interpret the meaning of icons from…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 910 KB Download PDF

Probabilistic Method for Anomalies Detection Based on the Analysis of Cyber Parameters in a Group of Mobile Robots

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 281–288, 2018; DOI: 10.25046/aj030636
Abstract:

This article is devoted to the issues of ensuring the security of a group of mobile robots in the implementation of attacks aimed at the property of accessibility of information and the availability of network nodes. The article presents a method for detecting an abnormal behavior of a network node based on the analysis by…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
16 Pages, 1,387 KB Download PDF

Parallelizing Combinatorial Optimization Heuristics with GPUs

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 265–280, 2018; DOI: 10.25046/aj030635
Abstract:

Combinatorial optimization problems are often NP-hard and too complex to be solved within a reasonable time frame by exact methods. Heuristic methods which do not offer a convergence guarantee could obtain some satisfactory resolution for combinatorial optimization problems. However, it is not only very time consuming for Central Processing Units (CPU) but also very difficult…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
6 Pages, 1,051 KB Download PDF

Student Performance Evaluation Using Data Mining Techniques for Engineering Education

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 259–264, 2018; DOI: 10.25046/aj030634
Abstract:

In this research work, we are implementing a student performance evaluation model using Mamdani Fuzzy Inference System (FIS) and Neuro Fuzzy system and comparing the results with classical averaging method for Network Analysis (NA) course studied by third semester Electronics and Communication Engineering students. This work explains the designing of scoring rubrics using Bloom’s levels…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
7 Pages, 1,513 KB Download PDF

3D Reconstruction of Monuments from Drone Photographs Based on The Spatial Reconstruction of The Photogrammetric Method

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 252–258, 2018; DOI: 10.25046/aj030633
Abstract:

Due to their efficient flight control systems and their camera of high quality modern drones can fly precisely and take aerial photos of high resolution. Although these multi-rotor devices are not able to fly long distances yet, they are very efficient instruments for taking aerial photographs of their proximate environment. As they are able to…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Remote Sensing (RMS))
Open AccessArticle
9 Pages, 2,067 KB Download PDF

Attitude Control Simulation of a Legged Aerial Vehicle Using the Leg Motions

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 204–212, 2018; DOI: 10.25046/aj030627
Abstract:

To gather information rapidly in disaster sites, a lot of search/rescue robots have been developed. It is difficult to correspond to the complicated environment composed of fields requiring various locomotion strategies, because most of these robots have only one type of locomotion device. To increase the available search routes under such conditions with the aim…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Mechanical Engineering (EMH))
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