Search Results

Results (1186)

Search Parameters:

Keyword: STEM
Order results
Results per page
Open AccessArticle
9 Pages, 4,674 KB Download PDF

Interference Avoidance using Spatial Modulation based Location Aware Beamforming in Cognitive Radio IOT Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 2, Page # 49–57, 2018; DOI: 10.25046/aj030206
Abstract:

The Internet of Things (IOT) is a revolutionary communication technology which enables numerous heterogeneous objects to be inter-connected. In such a wireless system, interference management between the operating devices is an important challenge. Cognitive Radio (CR) seems to be a promising enabler transmission technology for the 5G-IOT system. The “sense-and-adapt” smart transmission strategy in CR…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Telecommunications (TEL))
Open AccessArticle
7 Pages, 276 KB Download PDF

The Internet of Things ecosystem: the blockchain and data protection issues

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 2, Page # 1–7, 2018; DOI: 10.25046/aj030201
Abstract:

The IoT is innovative and important phenomenon prone to several services and applications such as the blockchain which an emerging phenomenon. We can describe the blockchain as blockchain as a service because of the opportunity to use several applications based on this technology. We, indeed, should take into account the legal issues related to the…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
6 Pages, 621 KB Download PDF

An Analysis of K-means Algorithm Based Network Intrusion Detection System

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 496–501, 2018; DOI: 10.25046/aj030160
Abstract:

In this modern age, information technology (IT) plays a role in a number of different fields. And therefore, the role of security is very important to control and assist the flow of activities over the network. Intrusion detection (ID) is a kind of security management system for computers and networks. There are many approaches and…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 795 KB Download PDF

Actuator Fault Reconstruction based Adaptive Polytopic Observer for a Class of Continuous-Time LPV Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 443–450, 2018; DOI: 10.25046/aj030154
Abstract:

This paper is an extension of work originally presented in conference name. The goal is to propose new fault detection and fault isolation techniques for a polytypic linear parameter-varying system (LPV). In this work, an adaptive observer design is formulated for a given polyquadratic Lyapunov function. Subsequently, new sufficient conditions are given in terms of…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Automation & Control Systems (ACS))
Open AccessArticle
8 Pages, 1,302 KB Download PDF

Systematic Tool Support of Engineering Education Performance Management

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 418–425, 2018; DOI: 10.25046/aj030151
Abstract:

Engineering schools must adopt or develop their own systems and processes for graduate attribute assessment. In this paper, we take a systems engineering approach to graduate attribute assessment and propose a system architecture and tool-supported continuous improvement process with key algorithms and mathematical analysis to process the data and provide performance management reporting. Over several…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
10 Pages, 415 KB Download PDF

Decentralized Control Approaches of Large-Scale Interconnected Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 394–403, 2018; DOI: 10.25046/aj030148
Abstract:

In this paper, we investigate the decentralized control problem for largescale interconnected systems. The synthesis of the decentralized controller consists in determining gains which ensure the stability of the global system. To calculate these gains, three approaches are presented. Our main contribution is to develop a new decentralized stabilization approach which the decentralized local gains…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Automation & Control Systems (ACS))
Open AccessArticle
11 Pages, 844 KB Download PDF

Adaptive observer design for a class of nonlinear systems with time delays

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 373–383, 2018; DOI: 10.25046/aj030146
Abstract:

This paper deals with the design of adaptive observer for a class of nonlinear systems with time delays. Within this work, we develop an adaptive observer for a bilinear time delay system, then we extend those results in the presence of Lipschitz nonlinear functions in the system’s dynamics. In the stability analysis of the estimation…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Automation & Control Systems (ACS))
Open AccessArticle
4 Pages, 618 KB Download PDF

LabVIEW-based data acquisition system for Diode I-V Characterization

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 348–351, 2018; DOI: 10.25046/aj030142
Abstract:

This work describes computerized data acquisition system for current-voltage (I-V) characteristics of diodes. The proposed system consist of a personal computer pre-installed with LabVIEW, two units of power supply, an interface board, current and voltage sensors. Two devices under test (DUTs) are selected namely 1N4007 silicon and 1N34 germanium diodes. The current flow through the…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Electronic Engineering (EEE))
Open AccessArticle
5 Pages, 816 KB Download PDF

Simulation and FPGA Implementation of a Ring Oscillator Sensor for Complex System Design

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 317–321, 2018; DOI: 10.25046/aj030138
Abstract:

This paper, presents the design of a temperature sensor based on RO (Ring Oscillator) in order to make a thermal study for the detection and localization of thermal peaks in a complex system. In this work, a simulation and FPGA implementation of a fully digital temperature sensor features a number of exact inverters that can…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Electronic Engineering (EEE))
Open AccessArticle
13 Pages, 1,436 KB Download PDF

The Use of LMS AMESim in the Fault Diagnosis of a Commercial PEM Fuel Cell System

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 297–309, 2018; DOI: 10.25046/aj030136
Abstract:

The world’s pollution rates have been increasing exponentially due to the many reckless lifestyle practices of human beings as well as their choices of contaminating power sources. Eventually, this lead to a worldwide awareness on the risks of those power sources, and in turn, a movement towards the exploration and deployment of several green technologies…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Electrical Engineering (ELE))
Open AccessArticle
7 Pages, 462 KB Download PDF

Stabilization of constrained uncertain systems by an off-line approach using zonotopes

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 281–287, 2018; DOI: 10.25046/aj030134
Abstract:

In this paper, stabilization of uncertain systems was established using zonotopic sets. The obtained state feedback control laws are computed by an off-line approach reducing computational burdens. The resolution of a robust model predictive control (MPC) allows computing a sequence of state feedback control laws corresponding to a sequence of zonotopic invariant sets. The implemented…

Read More
(This article belongs to Section Automation & Control Systems (ACS))
Open AccessArticle
9 Pages, 1,587 KB Download PDF

Constant Envelope DCT based OFDM System with M-ary PAM Mapper over Fading Channels

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 252–260, 2018; DOI: 10.25046/aj030131
Abstract:

Constant Envelope Discrete Cosine Transform based Orthogonal Frequency Division Multiplexing (CE-DCT-OFDM) system with M-ary Pulse Amplitude Modulation (PAM) mapper is considered. In the system phase modulation is used to achieve constant envelope signals that have 0 dB Peak-to-Average-Power Ratio (PAPR). Transmission of such signals permit high power amplifiers in the system to operate with maximum…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Telecommunications (TEL))
Open AccessArticle
8 Pages, 1,173 KB Download PDF

Design of an Automatic Forward and Back Collision Avoidance System for Automobiles

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 205–212, 2018; DOI: 10.25046/aj030124
Abstract:

This paper is the extended reflection of work originally presented in conference of Electrical, Computer and Communication Engineering (ECCE)-CUET 2017, entitled “Automated Anti Collision System for Automobiles”. Automated collision avoidance system is a trending technology of science in automobile engineering. The aim of this paper is to design a system which will prevent collision from…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Transportation Science & Technology (TST))
Open AccessArticle
23 Pages, 1,293 KB Download PDF

Linear algebra as an alternative approach to the synthesis of digital devices of automation and control systems

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 168–190, 2018; DOI: 10.25046/aj030121
Abstract:

The article considers linear algebra as an alternative mathematical tool of logic synthesis of digital structures to Boolean algebra and synthesis methods of digital electronic component base (ECB) on its ground. The methods of solving the applied problems of logic synthesis are shown, including the expansion of an arbitrary logic function by means of monotonic…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Automation & Control Systems (ACS))
Open AccessArticle
13 Pages, 1,427 KB Download PDF

Algorithms for Technical Integration of Virtual Power Plants into German System Operation

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 135–147, 2018; DOI: 10.25046/aj030117
Abstract:

This paper critically evaluates the operational perspective of Virtual Power Plants (VPP) in Germany by analyzing key factors to replace conventional power plants in the future power system. Therefore, its necessity for the secure operation as well as the technical and economic benefits for the German power system are pointed out. The single sections describe…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Electrical Engineering (ELE))
Open AccessArticle
12 Pages, 1,071 KB Download PDF

A Perfect Ecosystem for Learning? Modern Thoughts for Organizing Higher Education

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 82–93, 2018; DOI: 10.25046/aj030110
Abstract:

The background of the article lies in South Eastern Finland, in Lappeenranta, where an active University campus has attracted a group of ICT startups as well as SME’s in the field to collaboration. The novel education approach also has another remarkable role as a developer and source of innovation. An experimental development ecosystem (EDE), where…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
17 Pages, 921 KB Download PDF

Improving System Reliability Assessment of Safety-Critical Systems using Machine Learning Optimization Techniques

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 49–65, 2018; DOI: 10.25046/aj030107
Abstract:

Quality assurance of modern-day safety-critical systems is continually facing new challenges with the increase in both the level of functionality they provide and their degree of interaction with their environment. We propose a novel selection method for black-box regression testing on the basis of machine learning techniques for increasing testing efficiency. Risk-aware selection decisions are…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Software Engineering in Computer Science (CSE))
Open AccessArticle
8 Pages, 449 KB Download PDF

A Test Code Generation Method for Coding Standard Input/Output with Exception Handling in Java Programming Learning Assistant System

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 30–37, 2018; DOI: 10.25046/aj030105
Abstract:

To advance Java programming educations, we have developed the Java Programming Learning Assistant System (JPLAS) that provides the code writing problem. This problem asks a student to write a source code to satisfy the specification of a given assignment, where the correctness is verified by running test code on JUnit. For a novice student, a…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
7 Pages, 975 KB Download PDF

Building an Efficient Alert Management Model for Intrusion Detection Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 18–24, 2018; DOI: 10.25046/aj030103
Abstract:

This paper is an extension of work originally presented in WITS-2017 CONF. We extend our previous works by improving the Risk calculation formula, and risk assessment of an alert cluster instead of every single alert. Also, we presented the initial results of the implementation of our model based on risk assessment and alerts prioritization. The…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
13 Pages, 373 KB Download PDF

Doubly Nonlinear Parabolic Systems In Inhomogeneous Musielak- Orlicz-Sobolev Spcaes

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 5, Page # 180–192, 2017; DOI: 10.25046/aj020526
Abstract:

In this paper, we discuss the solvability of the nonlinear parabolic systems associated to the nonlinear parabolic equation: \(\frac{\partial b_{i}(x,u_{i})}{\partial t} -div(a(x,t,u_{i},\nabla u_{i}))- \phi_{i}(x,t,u_{i})) +f_{i}(x,u_{1},u_{2})=0\) where the function  \(b_{i}(x,u_{i})\) verifies some regularity conditions, the term \(\Big(a(x,t,u_{i},\nabla u_{i})\Big)\) is a generalized Leray-Lions operator and \(\phi_{i}\) is a Caratheodory function assumed to be  Continuous on \(u_i\) and satisfy only a…

Read More
(This article belongs to Section Applied Mathematics (MAP))
Open AccessArticle
10 Pages, 1,040 KB Download PDF

A Multilingual System for Cyberbullying Detection: Arabic Content Detection using Machine Learning

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 6, Page # 275–284, 2017; DOI: 10.25046/aj020634
Abstract:

With the abundance of Internet and electronic devices bullying has moved its place from schools and backyards into cyberspace; to be now known as Cyberbullying. Cyberbullying is affecting a lot of children around the world, especially Arab countries. Thus concerns from cyberbullying are rising. A lot of research is ongoing with the purpose of diminishing…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
8 Pages, 1,598 KB Download PDF

Measurement of the Bridge Surface Deflections Using Near-Field Amplitude of Secondary Radiators System

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 6, Page # 217–224, 2017; DOI: 10.25046/aj020626
Abstract:

In remote measurements on large-sized objects main focus is on measuring deformations of bridge surfaces and determination of the dynamic amplification factor in particular. The proposed method estimates deflections of entire lower surface of a bridge due to placement of secondary radiators on this surface. Antenna array directivity pattern (ADP) is distorted during deflection of…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Construction & Building Technology (CBT))
Open AccessArticle
14 Pages, 2,481 KB Download PDF

Novel Analysis of Synchronous and Induction Generators in Parallel Operation Mode in an Isolated Electric System

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 6, Page # 203–216, 2017; DOI: 10.25046/aj020625
Abstract:

This paper presents an analysis of a parallel connection of one synchronous generator and one self-excited induction generator that feeds a resistive load and an Induction Motor. The system voltage and frequency are controlled by a voltage control loop and a speed control loop connected to synchronous generator. The induction generator speed is controlled by…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Electrical Engineering (ELE))
Open AccessArticle
9 Pages, 882 KB Download PDF

Review on security issues in RFID systems

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 6, Page # 194–202, 2017; DOI: 10.25046/aj020624
Abstract:

Radio frequency Identification (RFID) is currently considered as one of the most used technologies for an automatic identification of objects or people. Based on a combination of tags and readers, RFID technology has widely been applied in various areas including supply chain, production and traffic control systems. However, despite of its numerous advantages, the technology…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 743 KB Download PDF

Fault Tolerant Control Based on PID-type Fuzzy Logic Controller for Switched Discrete-time Systems: An Electronic Throttle Valve Application

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 6, Page # 186–193, 2017; DOI: 10.25046/aj020623
Abstract:

This paper deals with the problem of Fault Tolerant Control (FTC) using PID-type Fuzzy Logic Controller (FLC) for an Electronic Throttle Valve (ETV) described by a switched discrete-time system with input disturbances and actuator faults. In order to detect the faults, Unknown Input Observers (UIOs) are designed and formulated in terms of Lyapunov theory and…

Read More
(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Automation & Control Systems (ACS))
1 12 13 14 15 16 48

Journal Menu

Journal Browser


Special Issues

Special Issue on Digital Frontiers of Entrepreneurship: Integrating AI, Gender Equity, and Sustainable Futures
Guest Editors: Dr. Muhammad Nawaz Tunio, Dr. Aamir Rashid, Dr. Imamuddin Khoso
Deadline: 30 May 2026

Special Issue on Indigenous Knowledge Systems of the Tribal Communities of the Asia Pacific
Guest Editors: Dr. Anurag Hazarika
Deadline: 31 October 2026

Special Issue on Sustainable Technologies for a Resilient Future
Guest Editors: Dr. Debasis Mitra, Dr. Sourav Chattaraj, Dr. Addisu Assefa
Deadline: 30 April 2026