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Open AccessArticle
8 Pages, 1,633 KB Download PDF

Potential of Solar Energy in Residential Rooftop Surface Area in Semarang City, Indonesia

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 4, Page # 397–404, 2020; DOI: 10.25046/aj050446
Abstract:

This study examines the potential of solar energy in the urban environment with a case study in Semarang, Indonesia by analyzing the intensity of solar radiation and the residential rooftop area. The study aims to obtain a quantitative description of the potential for electricity production from rooftop solar photovoltaic systems in residential areas and estimate…

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(This article belongs to Section Environmental Engineering (EEV))
Open AccessArticle
15 Pages, 1,070 KB Download PDF

On the Ensemble of Recurrent Neural Network for Air Pollution Forecasting: Issues and Challenges

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 512–526, 2020; DOI: 10.25046/aj050265
Abstract:

Time-series is a sequence of observations that are taken sequentially over time. Modelling a system that generates a future value from past observations is considered as time-series forecasting system. Recurrent neural network is a machine learning method that is widely used in the prediction of future values. Due to variant improvements on recurrent neural networks,…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
11 Pages, 2,074 KB Download PDF

A Sustainable Multi-layered Open Data Processing Model for Agriculture: IoT Based Case Study Using Semantic Web for Hazelnut Fields

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 309–319, 2020; DOI: 10.25046/aj050241
Abstract:

In recent years, several projects which are supported by information and communications technologies (ICT) have been developed in the agricultural domain to promote more precise agricultural activities. These projects account for different kinds of key ICT terms such as internet of things (IoT), wireless sensors networks (WSN), cloud computing (CC). These projects are used for…

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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
6 Pages, 571 KB Download PDF

Comparative Study of Semantic and Keyword Based Search Engines

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 1, Page # 106–111, 2020; DOI: 10.25046/aj050114
Abstract:

Day by day, the data on the web becomes very huge which makes it difficult to find relevant information. Search engines are one of the successful factors that can retrieve information from the Web. The process of seeking information by search engines helps users find information on the internet, however it is not an easy…

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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
5 Pages, 594 KB Download PDF

Comparative Analysis of Student Dissatisfaction of the Continuing Academic Semesters at UNTELS

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 203–207, 2019; DOI: 10.25046/aj040626
Abstract:

Student dissatisfaction is of the utmost importance when it comes to establishing a process of continuous improvement in a University. Currently, at the National Technological University of Lima Sur (UNTELS) there is no information regarding the levels of student dissatisfaction with the services offered by UNTELS. In this context, the purpose of this research project…

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(This article belongs to Section Behavioral Sciences (BHS))
Open AccessArticle
8 Pages, 1,116 KB Download PDF

EKMC: Ensemble of kNN using MetaCost for Efficient Anomaly Detection

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 5, Page # 401–408, 2019; DOI: 10.25046/aj040552
Abstract:

Anomaly detection aims at identification of suspicious items, observations or events by differing from most of the data. Intrusion Detection, Fault Detection, and Fraud Detection are some of the various applications of Anomaly Detection. The Machine learning classifier algorithms used in these applications would greatly affect the overall efficiency. This work is an extension of…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
7 Pages, 1,229 KB Download PDF

Optimization Method of Wideband Multilayer Meander-Line Polarizer using Semi-Analytical approach and Application to 6-18GHz Polarizer including test with Horn Antenna

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 5, Page # 132–138, 2019; DOI: 10.25046/aj040517
Abstract:

An optimization method using a semi-analytical approach is detailed in this paper to design a wideband multilayer meander-line polarizer. It consists of the transmission line equivalent circuit study to find the best values of the shunt components that allow the maximum transmission and a 90 phase difference between two orthogonal components over the entire bandwidth,…

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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
8 Pages, 638 KB Download PDF

Survey on Semantic Similarity Based on Document Clustering

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 5, Page # 115–122, 2019; DOI: 10.25046/aj040515
Abstract:

Clustering is a branch of data mining which involves grouping similar data in a collection known as cluster. Clustering can be used in many fields, one of the important applications is the intelligent text clustering. Text clustering in traditional algorithms was collecting documents based on keyword matching, this means that the documents were clustered without…

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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
7 Pages, 262 KB Download PDF

Detecting Malicious Assembly using Convolutional, Recurrent Neural Networks

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 5, Page # 46–52, 2019; DOI: 10.25046/aj040506
Abstract:

We present findings on classifying the class of executable code using convolutional, re- current neural networks by creating images from only the .text section of executables and dividing them into standard-size windows, using minimal preprocessing. We achieve up to 98.24% testing accuracy on classifying 9 types of malware, and 99.50% testing accuracy on classifying malicious…

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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
7 Pages, 1,108 KB Download PDF

Development of Wavelet-Based Tools for Event Related Potentials’ N400 Detection: Application to Visual and Auditory Vowelling and Semantic Priming in Arabic Language

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 414–420, 2019; DOI: 10.25046/aj040450
Abstract:

Neurological signals are generally very weak in amplitude and strongly noisy. As a result, one of the major challenges in neuroscience is to be able to eliminate noise and thus exploit the maximum amount of information contained in neurological signals (EEG…). In this paper, we aimed at studying the N400 wave of the Event-Related Potentials…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Biomedical Engineering (EBI))
Open AccessArticle
6 Pages, 430 KB Download PDF

Predictive Modelling of Student Dropout Using Ensemble Classifier Method in Higher Education

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 206–211, 2019; DOI: 10.25046/aj040425
Abstract:

Currently, one of the challenges of educational institutions is drop-out student issues. Several factors have been found and determined potentially capable to stimulate dropouts. Many researchers have been applied data mining methods to analyze, predict dropout students and also optimize finding dropout variables in advance. The main objective of this study is to find the…

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(This article belongs to Section Software Engineering in Computer Science (CSE))
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
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 SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Automation & Control Systems (ACS))
Open AccessArticle
6 Pages, 956 KB Download PDF

cv4sensorhub – A Multi-Domain Framework for Semi-Automatic Image Processing

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 159–164, 2018; DOI: 10.25046/aj030620
Abstract:

Although there are many research domains with very good software support and workflow automation, there are even more which do not have it: software development is too expensive to create domain specific applications for every research topic. This leaves many domain experts to work for example with general purpose image processing and statistics tools. Many…

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(This article belongs to Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
6 Pages, 289 KB Download PDF

Boundary gradient exact enlarged controllability of semilinear parabolic problems

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 5, Page # 167–172, 2017; DOI: 10.25046/aj020524
Abstract:

The aim of this paper is to study the boundary enlarged gradient controllability problem governed by parabolic evolution equations. The purpose is to find and compute the control \(u\) which steers the gradient state from an initial gradient one \(\nabla y_{_{0}}\) to a gradient vector supposed to be unknown between two defined bounds \(b_1\) and…

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(This article belongs to Section Applied Mathematics (MAP))
Open AccessArticle
10 Pages, 1,809 KB Download PDF

CAM-Infrastructure: a novel solution for service advertisement in Cooperative Intelligent Transportation Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 1422–1431, 2017; DOI: 10.25046/aj0203178
Abstract:

Cooperative Intelligent Transportation Systems (C-ITS) are gaining ground and currently are almost part of our everyday life. A C-ITS environment can provide numerous services that soon will become essential to roads’ users. The latter resides in improvement of road safety, entertainment, and commercial services. However, in order to provide such services, the C-ITS environment needs…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
10 Pages, 677 KB Download PDF

Ensemble of Neural Network Conditional Random Fields for Self-Paced Brain Computer Interfaces

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 996–1005, 2017; DOI: 10.25046/aj0203126
Abstract:

Classification of EEG signals in self-paced Brain Computer Interfaces (BCI) is an extremely challenging task. The main difficulty stems from the fact that start time of a control task is not defined. Therefore it is imperative to exploit the characteristics of the EEG data to the extent possible. In sensory motor self-paced BCIs, while performing…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
5 Pages, 824 KB Download PDF

Computer Tomography from Micro-Electronics to Assembled Products

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 932–936, 2017; DOI: 10.25046/aj0203117
Abstract:

Traditional CT in our industry has been limited to Business card sized samples, due to the Cone Beam x-ray systems used by Electronics manufacturing companies. Inclined or Partial CT provides a slightly different solution showing layers or slices in 2D very well, but due to the partial nature of the scans does not produce very…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Electronic Engineering (EEE))
Open AccessArticle
7 Pages, 644 KB Download PDF

A comparative between CRISP-DM and SEMMA through the construction of a MODIS repository for studies of land use and cover change

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 598–604, 2017; DOI: 10.25046/aj020376
Abstract:

Among the most popular methodologies for development of data mining projects are CRISP-DM and SEMMA, This research paper explains the reason why it was decided to compare them from a specific case study. Therefore, this document describes in detail each phase, task and activity proposed by each methodology, applying it in the construction of a…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
9 Pages, 5,165 KB Download PDF

Semantic-less Breach Detection of Polymorphic Malware in Federated Cloud

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 553–561, 2017; DOI: 10.25046/aj020371
Abstract:

Cloud computing is one of the largest emerging utility services that is expected to grow enormously over the next decade. Many organizations are moving into hybrid cloud/hosted computing models. Single cloud service provider introduces cost and environmental challenges. Also, multi-cloud solution implemented by the Cloud tenant is suboptimal as it requires expensive adaptation costs. Cloud…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
11 Pages, 1,272 KB Download PDF

Evaluation of Three Evaporation Estimation Techniques In A Semi-Arid Region (Omar El Mukhtar Reservoir Sluge, Libya- As a case Study)

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 2, Page # 19–29, 2017; DOI: 10.25046/aj020204
Abstract:

In many semi-arid countries in the world like Libya, drinking water supply is dependent on reservoirs water storage. Since the evaporation rate is very high in semi-arid countries, estimates and forecasts of reservoir evaporation rate can be useful in the management of major water source. Many researchers have been investigating the suitability of estimates evaporation…

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(This article belongs to Section Water Resources (WRS))
Open AccessArticle
8 Pages, 719 KB Download PDF

Semantic modeling of portfolio assessment in e-learning environment

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 1, Page # 149–156, 2017; DOI: 10.25046/aj020117
Abstract:

In learning environment, portfolio is used as a tool to keep track of learner’s progress. Particularly, when it comes to e-learning, continuous assessment allows greater customization and efficiency in learning process and prevents students lost interest in their study. Also, each student has his own characteristics and learning skills that must be taken into account…

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(This article belongs to the SP2 (Special Issue on Computer Systems, Information Technology, Electrical and Electronics Engineering 2017) & Section Education (EDU))
Open AccessArticle
7 Pages, 1,288 KB Download PDF

FenceBook a Geofencing based Advertisements Application Using Android

Advances in Science, Technology and Engineering Systems Journal, Volume 1, Issue 5, Page # 27–33, 2016; DOI: 10.25046/aj010506
Abstract:

Geo-fencing (geofencing) is a great feature in a software program that uses Global Positioning System (GPS) or radio frequency identification (RFID) to define the geographical boundaries feature. Actually geofence is a virtual barrier. Geofencing is an innovative technology, an online marketplace for proactive contextual services that allows users to easily find interesting services, can easily…

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(This article belongs to the Special issue on Recent Advances in Electrical and Electronics Engineering 2016 & Section Information Systems in Computer Science (CIS))
Open AccessArticle
9 Pages, 1,222 KB Download PDF

Integration and Innovation of a Micro-Topic-Pedagogy Teaching Model under the New Engineering Education Paradigm

Advances in Science, Technology and Engineering Systems Journal, Volume 10, Issue 4, Page # 32–40, 2025; DOI: 10.25046/aj100404
Abstract:

The rapid evolution of global technologies and industrial restructuring demands innovative pedagogical approaches to foster interdisciplinary engineering expertise. This research pioneers a blended instructional framework anchored in micro-topic pedagogy under the New Engineering Education (NEE) paradigm, orchestrating case studies, heuristic scaffolding, and research-driven inquiry strategies within digitally augmented learning ecosystems. A quasi-experimental study was conducted…

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(This article belongs to Section Education (EDU))
Open AccessArticle
6 Pages, 2,195 KB Download PDF

Characteristics of Crystal Defects due to the Inverse Piezoelectric Effect in Aluminum Gallium Nitride / Gallium Nitride High Electron Mobility Transistors

Advances in Science, Technology and Engineering Systems Journal, Volume 10, Issue 3, Page # 9–14, 2025; DOI: 10.25046/aj100302
Abstract:

Gallium nitride (GaN) is expected to be used as a material for power semiconductor devices. However, it is crucial to focus on the dielectric properties of GaN. In this study, we investigated the transient response of the drain current during high-frequency application after intentionally maintaining the current collapse in the AlGaN/GaN high electron mobility transistors.…

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(This article belongs to Section Electronic Engineering (EEE))

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