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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 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 Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
6 Pages, 409 KB Download PDF

PAPR and BER Performances of OFDM System with Novel Tone Reservation Technique Over Frequency Non-Selective Fading Channel

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 225–230, 2019; DOI: 10.25046/aj040122
Abstract:

An Orthogonal Frequency Division Multiplexing (OFDM) system with Quadrature Phase Shift Keying (QPSK) mapper is considered. A novel low-complexity Tone Reservation (TR) technique is proposed for reduction of Peak-to-Average Power Ratio (PAPR) of the system. The technique is easy-to-implement and minimizes the search space of phases of reserved tones in the system. The ability of…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Telecommunications (TEL))
Open AccessArticle
8 Pages, 1,683 KB Download PDF

Trajectory Tracking Control Optimization with Neural Network for Autonomous Vehicles

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 217–224, 2019; DOI: 10.25046/aj040121
Abstract:

For mission-critical and time-sensitive navigation of autonomous vehicles, controller design must exhibit excellent tracking performance with respect to the speed of convergence to reference command and steady-state accuracy. In this article, a novel design integration of the neural network with the traditional control system is proposed to adaptively obtain optimized controller parameters resulting in improved…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Automation & Control Systems (ACS))
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 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 Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Electronic Engineering (EEE))
Open AccessArticle
6 Pages, 3,439 KB Download PDF

Low Contrast Image Enhancement Using Convolutional Neural Network with Simple Reflection Model

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 159–164, 2019; DOI: 10.25046/aj040115
Abstract:

Low contrast images degrade the performance of image processing system. To solve the issue, plenty of image enhancement methods have been proposed. But the methods work properly on the fixed environment or specific images. The methods dependent on fixed image conditions cannot perform image enhancement properly and perspective of smart device users, algorithms including iterative…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Interdisciplinary Applications of Computer Science (CSI))
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 Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Electrical Engineering (ELE))
Open AccessArticle
13 Pages, 977 KB Download PDF

Optimal Designs of Constrained Accelerated Life Testing Experiments for Proportional Hazards Models

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 101–113, 2019; DOI: 10.25046/aj040111
Abstract:

This paper investigates the methods of optimal design construction for step-stress accelerated life testing (ALT) when a Cox’s hazards model is adopted with either a linear or a quadratic baseline hazard function. We discuss multiple step-stress plans for time-censored ALT experiments. The maximum likelihood method is utilized for estimating the model parameters. The information matrices…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Statistics & Probability (STP))
Open AccessArticle
9 Pages, 1,013 KB Download PDF

Web Authentication: no Password; Listen and Touch

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 84–92, 2019; DOI: 10.25046/aj040109
Abstract:

Just as electricity has an essential role in our lives, the internet network and especially web services have become of vital importance nowadays. Without security service layers, apparently small things like checking a child’s school schedule on web may turn the daily routine into a nightmare. Web services users are still required to use many…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Interdisciplinary Applications of Computer Science (CSI))
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 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 Special Issue on Multidisciplinary Sciences and Engineering 2018 & Section Robotics (ROB))
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 Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Multidisciplinary Materials Science (MMU))
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 Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Software Engineering in Computer Science (CSE))
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 Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
9 Pages, 1,357 KB Download PDF

Real Time Eye Tracking and Detection- A Driving Assistance System

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 446–454, 2018; DOI: 10.25046/aj030653
Abstract:

Distraction, drowsiness, and fatigue are the main factors of car accidents recently. To solve such problems, an Eye-tracking system based on camera is proposed in this paper. The system detects the driver’s Distraction or sleepiness and gives an alert to the driver as an assistance system. The camera best position is chosen to be on…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Interdisciplinary Applications of Computer Science (CSI))
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 Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Telecommunications (TEL))
Open AccessArticle
7 Pages, 636 KB Download PDF

Adaptation of Electronic Book Publishing Technology by The Publishers in Southeast Nigeria

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 425–431, 2018; DOI: 10.25046/aj030650
Abstract:

This paper investigates the electronic book production and distribution practices adopted by the Publishers in Southeast Nigeria because of the global growing interest in writing new book titles in digital form as well as converting paper titles to digital content. To investigate this study, the researcher formulated three research questions to guide the study. A…

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(This article belongs to Section Multidisciplinary Sciences (MUS))
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 Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Mechanical Engineering (EMH))
Open AccessArticle
9 Pages, 855 KB Download PDF

Analysis of Garri Frying Machine Manufacturing in Nigeria: Design Innovation

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 403–411, 2018; DOI: 10.25046/aj030648
Abstract:

Production of garri (edible processed and granulated form of cassava) and sustaining the production process has become so laborious, time consuming, and predisposes one to some form of danger, especially as it concerns the hot fire that one is disposed to during the process. In west African tradition, where this garri serves as one of…

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(This article belongs to Section Manufacturing Engineering (EMF))
Open AccessArticle
11 Pages, 1,191 KB Download PDF

Using Fuzzy PD Controllers for Soft Motions in a Car-like Robot

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 380–390, 2018; DOI: 10.25046/aj030646
Abstract:

This paper deals with the control problem for nonholonomic wheeled mobile robots moving on the plane, and in particular, the use of a Fuzzy controller technique for achieving a given motion task which consists of following a rectilinear trajectory until an obstacle occurs on the path. After a background part, in which the fundamental knowledge…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Automation & Control Systems (ACS))
Open AccessArticle
14 Pages, 2,022 KB Download PDF

A Practical Approach for Extending DSMLs by Composing their Metamodels

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 358–371, 2018; DOI: 10.25046/aj030644
Abstract:

Domain specific modeling (DSM) has become popular in the software development field during these last years. It allows to design an application using a domain specific modeling language (DSML) and to generate an end-solution software product directly from models. However providing a new DSML is a complex and costly job. This can be reduced by…

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(This article belongs to the Special Issue on Recent Advances in Engineering Systems 2018-19 & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
11 Pages, 3,199 KB Download PDF

Semi-Autonomous Robot Control System with an improved 3D Vision Scheme for Search and Rescue Missions. A joint research collaboration between South Africa and Argentina

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 347–357, 2018; DOI: 10.25046/aj030643
Abstract:

Rescue operations require technology to assist the rescue process. The robotic technology in these missions is becoming very important. The important aspects investigated in this study are the integration of a mechatronic system that will allow for a robotic platform with a vision system. The research collaboration between Argentina and South Africa is discussed, with…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2018 & Section Automation & Control Systems (ACS))
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
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 Special Issue on Multidisciplinary Sciences and Engineering 2018 & Section Operations Research & Management Science (ORM))
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