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Open AccessArticle
7 Pages, 838 KB Download PDF

The Analysis and Comparison of Multiport Converter used for Renewable Energy Sources

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 906–912, 2017; DOI: 10.25046/aj0203113
Abstract:

The concept of renewable energy is increasing day by day because the electrical applications are moving towards utilization of renewable sources and due to this factor electric power is also gaining ground and new type of converters are modelled in order to get high utilization of renewable sources. In this paper, two types of multiport…

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(This article belongs to the Special issue on Recent Advances in Engineering Systems 2017 & Section Electrical Engineering (ELE))
Open AccessArticle
4 Pages, 631 KB Download PDF

A Theoretical and Experimental Comparison of One Time Pad Cryptography using Key and Plaintext Insertion and Transposition (KPIT) and Key Coloumnar Transposition (KCT) Method

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 5, Page # 31–34, 2017; DOI: 10.25046/aj020506
Abstract:

One Time Pad (OTP) is a cryptographic algorithm that is quite easy to be implemented. This algorithm works by converting plaintext and key into decimal then converting into binary number and calculating Exclusive-OR logic. In this paper, the authors try to make the comparison of OTP cryptography using KPI and KCT so that the ciphertext…

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(This article belongs to Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 2,021 KB Download PDF

Implementation Of Carlson Survey Software2009 In Survey Works And Comparison With CDS Software

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 2, Page # 11–18, 2017; DOI: 10.25046/aj020203
Abstract:

The automation surveying is one of the most influential changes to surveying concept and profession has had to go through, this has taken effect in two major courses, hardware (instrumentation used in data collection and presentation), and the software (the applications used in data processing and manipulation). Automation is majorly computer based and just like…

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(This article belongs to Section Civil Engineering (ECV))
Open AccessArticle
6 Pages, 747 KB Download PDF

Effects of the Metropolitan Civil Resilience Program: Comparison of the SAT Resilience Program and an Exercise Program

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 2, Page # 1–6, 2017; DOI: 10.25046/aj020201
Abstract:

Purpose: To conduct preliminary research for developing a program to enhance resilience, a topic that has generated attention of late. Methods: We compared the Structured Association Technique (SAT) resilience program and an exercise program. The citizen’s lecture on stress management occurred 1 month after East Japan Earthquake, and the intervention was carried out in the afternoon of…

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(This article belongs to Section Psychology (PCL))
Open AccessArticle
31 Pages, 3,263 KB Download PDF

Many-objective Placement Optimization in Virtual Network Functions

Advances in Science, Technology and Engineering Systems Journal, Volume 11, Issue 3, Page # 9–39, 2026; DOI: 10.25046/aj110302
Abstract:

Network Functions Virtualization (NFV) poses the VNF placement problem under multiple, potentially conflicting objectives, such as Quality of Service (QoS), costs, and resource efficiency. This work treats VNF placement as a many-objective optimization problem (MaOP) and presents two primary contributions: (i) a correlation analysis of state-of-the-art objectives to reduce dimensionality while maintaining representativeness, resulting in…

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(This article belongs to the SP20 (Special Issue on Multidisciplinary Frontiers in Engineering, Computing and Applied Sciences 2026) & Section Network Engineering (ENW))
Open AccessArticle
8 Pages, 8,520 KB Download PDF

The Impact of Antenna Design on Breast Microwave Imaging

Advances in Science, Technology and Engineering Systems Journal, Volume 11, Issue 3, Page # 1–8, 2026; DOI: 10.25046/aj110301
Abstract:

Breast microwave sensing (BMS) systems offer a low-cost and efficient alternative to current reast cancer screening methods. However, reported performance varies widely due to differences in system configuration, antenna design, measurement protocols, and image reconstruction techniques. This study evaluates the impact of antenna design on key image quality metrics using a controlled experimental platform. Spatial…

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(This article belongs to the SP20 (Special Issue on Multidisciplinary Frontiers in Engineering, Computing and Applied Sciences 2026) & Section Biomedical Engineering (EBI))
Open AccessArticle
11 Pages, 2,600 KB Download PDF

Hardware and Secure Implementation of Enhanced ZUC Steam Cipher Based on Chaotic Dynamic S-Box

Advances in Science, Technology and Engineering Systems Journal, Volume 10, Issue 1, Page # 37–47, 2025; DOI: 10.25046/aj100105
Abstract:

Despite the development of the Internet and wired networks such as fiber optics, mobile networks remain the most used thanks to the mobility they offer to the user. However, data protection in these networks is more complex because of the radio channels they use for transmission. Hence,there is a need to find more sophisticated data…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2024-25 & Section Hardware & Architecture in Computer Science (CHA))
Open AccessArticle
7 Pages, 1,536 KB Download PDF

Impact of Integrating Chatbots into Digital Universities Platforms on the Interactions between the Learner and the Educational Content

Advances in Science, Technology and Engineering Systems Journal, Volume 10, Issue 1, Page # 13–19, 2025; DOI: 10.25046/aj100103
Abstract:

The rapid expansion of digital universities across Africa addresses the need for scalable higher education solutions, but challenges such as limited physical infrastructure and high dropout rates persist. In digital learning environments, effective interaction with educational content is crucial for student success. This article explores the transformative role of chatbots integrated into digital university platforms,…

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(This article belongs to the Special Issue on AI-empowered Smart Grid Technologies and EVs 2024 & Section Education (EDU))
Open AccessArticle
9 Pages, 1,597 KB Download PDF

Comparing Kalman Filter and Diffuse Kalman Filter on a GPS Signal with Noise

Advances in Science, Technology and Engineering Systems Journal, Volume 9, Issue 1, Page # 124–132, 2024; DOI: 10.25046/aj090112
Abstract:

The navigation control of an autonomous vehicle can be determined by the coordinates of a GPS (Global Positioning System) positioning system, angular velocity, and acceleration with an INS (Inertial Navigation System). However, the errors associated with these devices do not allow it to be the only measurement system used in an autonomous vehicle. The need…

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(This article belongs to Section Automation & Control Systems (ACS))
Open AccessArticle
18 Pages, 1,349 KB Download PDF

Improved Candidate-Career Matching Using Comparative Semantic Resume Analysis

Advances in Science, Technology and Engineering Systems Journal, Volume 9, Issue 1, Page # 15–32, 2024; DOI: 10.25046/aj090103
Abstract:

A resume is a prevalent and generally employed method for individuals to showcase their proficiency and qualifications. It is typically composed using diverse customized, personalized methods in multiple inconsistent formats (such as pdf, txt, doc, etc.). Screening candidates based on the alignment of their resume with a set of job requirements is typically a labori-…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2023 & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
11 Pages, 1,234 KB Download PDF

EEG Feature Extraction based on Fast Fourier Transform and Wavelet Analysis for Classification of Mental Stress Levels using Machine Learning

Advances in Science, Technology and Engineering Systems Journal, Volume 8, Issue 6, Page # 46–56, 2023; DOI: 10.25046/aj080606
Abstract:

Mental stress assessment remains riddled with biases caused by subjective reports and individual differences across societal backgrounds. To objectively determine the presence or absence of mental stress, there is a need to move away from the traditional subjective methods of self-report questionnaires and interviews. Previously, it has been evidence that EEG Oscillations can discriminate mental…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2023 & Section Biomedical Engineering (EBI))
Open AccessArticle
7 Pages, 972 KB Download PDF

Tree-Based Ensemble Models, Algorithms and Performance Measures for Classification

Advances in Science, Technology and Engineering Systems Journal, Volume 8, Issue 6, Page # 19–25, 2023; DOI: 10.25046/aj080603
Abstract:

An ensemble method is a Machine Learning (ML) algorithm that aggregates the predictions of multiple estimators or models. The purpose of an ensemble module is to provide better predictive performance than any single contributing model. This can be achieved by producing a predictive model with reduced variance using bagging, and bias using boosting. The Tree-Based…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2023 & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
7 Pages, 1,570 KB Download PDF

Control Program Generator for Vehicle Robot using Grammatical Evolution

Advances in Science, Technology and Engineering Systems Journal, Volume 8, Issue 6, Page # 01–07, 2023; DOI: 10.25046/aj080601
Abstract:

A robot development has spread widely for various purposes. It is difficult to create a control program for an autonomous mobile robot manually. Therefore, an automatic design of the control program for an autonomous mobile robot is proposed in this research. The autonomous mobile robot is created with LEGO MINDSTORMS EV3, and the control program…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2023 & Section Robotics (ROB))
Open AccessArticle
4 Pages, 718 KB Download PDF

Consideration of Ambiguity in the Analysis Phase of Data Warehouses

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 6, Page # 244–247, 2022; DOI: 10.25046/aj070627
Abstract:

We are interested in taking into account ambiguity in the analysis phase of data warehouses, using fuzzy logic. We want to offer decision makers the possibility of using natural language in this phase. We created in a previous work the Baccalaureate fuzzy data warehouse which we were able to query with seven natural language terms…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2022 & Section Information Systems in Computer Science (CIS))
Open AccessArticle
8 Pages, 1,155 KB Download PDF

Ensemble Extreme Learning Algorithms for Alzheimer’s Disease Detection

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 6, Page # 204–211, 2022; DOI: 10.25046/aj070622
Abstract:

Alzheimer’s disease has proven to be the major cause of dementia in adults, making its early detection an important research goal. We have used Ensemble ELMs (Extreme Learning Models) on the OASIS (Open Access Series of Imaging Studies) data set for Alzheimer’s detection. We have explored various single layered light-weight ELM networks. This is an…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2022 & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
6 Pages, 981 KB Download PDF

Hybrid Neural Network Method for Predicting the SOH and RUL of Lithium-Ion Batteries

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 5, Page # 193–198, 2022; DOI: 10.25046/aj070520
Abstract:

The use of a battery to power an electrical or electronic system is accompanied by battery management, i.e. a set of measures intended to preserve it for preventative maintenance, thus the cost reduction. This management is generally based on two key parameters, the (remaining useful life) RUL and the (State-of-health) SOH, which relate respectively to…

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(This article belongs to the Special Issue on Computing, Engineering and Multidisciplinary Sciences 2022-23 & Section Electronic Engineering (EEE))
Open AccessArticle
11 Pages, 2,874 KB Download PDF

A DC Grid-Connected PV Microgrid Regulated via Digital and MBPC Cascade Control Strategies

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 5, Page # 102–112, 2022; DOI: 10.25046/aj070513
Abstract:

The current paper focuses on the design of cascade control systems employed in photovoltaic (PV) powered microgrids (MG), which have been well received in remote agricultural farms in Ecuador. The study case is composed of a three-phase inverter powered by a DC-DC converter fed by a PV array and its control system. To simulate the…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
7 Pages, 6,496 KB Download PDF

Analysis of Layout Arrangement for CMOS Oscillators to Reduce Overall Variation on Silicon

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 5, Page # 46–52, 2022; DOI: 10.25046/aj070507
Abstract:

This investigation demonstrates the analysis of various layout arrangements for oscillator (OSC) realized by CMOS technologies. Moreover, the analysis reveals that the serpentine style of OSC stages attains the minimum output variation on silicon. This investigation is firstly verified by post-layout simulations, comparing the variation with different kinds of layout arrangement for OSC designs, including…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
10 Pages, 865 KB Download PDF

Secured Multi-Layer Blockchain Framework for IoT Aggregate Verification

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 3, Page # 106–115, 2022; DOI: 10.25046/aj070312
Abstract:

Technologies designed for digital provenance, especially the Internet of Things (IoT) and blockchain, may allow for security, transparency, and traceability in the global supply chain. However, upstream nodes in the supply chain that work for large-scale production suppliers are not considered. In addition, most IoT blockchain systems adopt an ID-based signature scheme that may affect…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2022 & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
12 Pages, 2,090 KB Download PDF

High Performance SqueezeNext: Real time deployment on Bluebox 2.0 by NXP

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 3, Page # 70–81, 2022; DOI: 10.25046/aj070308
Abstract:

DNN implementation and deployment is quite a challenge within a resource constrained environment on real-time embedded platforms. To attain the goal of DNN tailor made architecture deployment on a real-time embedded platform with limited hardware resources (low computational and memory resources) in comparison to a CPU or GPU based system, High Performance SqueezeNext (HPS) architecture…

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(This article belongs to Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
7 Pages, 1,800 KB Download PDF

Enhanced Dynamic Cross Layer Mechanism for real time HEVC Streaming over Vehicular Ad-hoc Networks (VANETs)

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 2, Page # 18–24, 2022; DOI: 10.25046/aj070202
Abstract:

Various applications have helped make vehicular Ad-hoc network communication a reality. Real-time applications, for example, need broadcasting in high video quality with minimal latency. The new High-Efficiency Video Coding (HEVC) has shown great promise for real-time video transmission through Vehicle Ad-hoc Networks due to its high compression level. These networks, on the other hand, have…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2021-22 & Section Hardware & Architecture in Computer Science (CHA))
Open AccessArticle
11 Pages, 1,497 KB Download PDF

A Novel Algorithm Design for Locating Fault Distances on HV Transmission Lines

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 1, Page # 79–89, 2022; DOI: 10.25046/aj070108
Abstract:

The transmission network has been considered among the globe’s prevalent complex systems, comprised of hundreds of electrical transmission lines and other equipment used to transmit electrical energy from one location to another. Over a decade, power engineers have worked tirelessly to ensure that the transmission network operates reliably, transmitting electrical energy from the power station…

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(This article belongs to the Special Issue on Multidisciplinary Sciences and Engineering 2021-22 & Section Electrical Engineering (ELE))
Open AccessArticle
7 Pages, 1,011 KB Download PDF

Impact Assessment of the Renewable Energy Sources Implementation in Bulgarian Single-Family Houses on the Greenhouse Gas by HOMER Pro Software

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 362–368, 2021; DOI: 10.25046/aj060541
Abstract:

It is widely known that cities now house more than half of the world’s population. Within this framework, this study presents the possibilities for real-world application of renewable energy sources (RES) in urban areas, as well as their contribution to the urban deployment of the new energy paradigm. A comparison is made between hybrid power…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Electrical Engineering (ELE))
Open AccessArticle
9 Pages, 997 KB Download PDF

Coupled Apodization Functions Applied to Enhance Image Quality in Ultrasound Imaging using Phased Arrays

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 149–157, 2021; DOI: 10.25046/aj060517
Abstract:

The remarkable presence of side lobes levels in ultrasound B-mode imaging significantly decreases the image quality. Therefore, the use of an apodization function is of great importance. Linear windowing functions are among the most efficient techniques used to optimize antenna directivity by suppression of the side lobes. However, the apodization causes the degradation of lateral…

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(This article belongs to Section Biomedical Engineering (EBI))
Open AccessArticle
18 Pages, 2,226 KB Download PDF

A Summary of Canonical Multivariate Permutation Entropies on Multivariate Fractional Brownian Motion

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 107–124, 2021; DOI: 10.25046/aj060514
Abstract:

Real-world applications modelled by time-dependent dynamical systems with specific properties such as long-range dependence or self-similarity are usually described by fractional Brownian motion. The investigation of the qualitative behaviour of its realisations is an important topic. For this purpose, efficient mappings from realisations of the dynamical system, i.e., time series, to a set of scalar-valued…

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(This article belongs to the Special Issue on Innovation in Computing, Engineering Science & Technology 2021 & Section Statistics & Probability (STP))

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