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Open AccessArticle
7 Pages, 690 KB Download PDF

Sustainable Development Practices in the Moroccan Small and Medium Enterprise: by What means and for What Purpose?

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 5, Page # 630–636, 2020; DOI: 10.25046/aj050577
Abstract:

The objective of this article is to highlight the relationship between the integration of sustainable development practices in Moroccan Small and Medium Enterprises (Smes) and the challenge sought by managers in order to ensure competitiveness and sustainability. Indeed, present-day Smes are operating in a world where economic, social, societal or environmental constraints are constantly evolving.…

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(This article belongs to the isaect-20 (Special Issue on Advanced Electrical and Communication Technologies 2020) & Section Operations Research & Management Science (ORM))
Open AccessArticle
12 Pages, 1,442 KB Download PDF

Design and Optimization of a Three Stage Electromechanical Power Unit using Numerical Methods

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 4, Page # 351–362, 2020; DOI: 10.25046/aj050441
Abstract:

The advent of electric vehicles has changed the face of the automobile industry. The drive system properties of vehicles such as eBikes or electric cars differ fundamentally from those of a diesel engine. The lack of a conventional internal combustion engine has made the vehicles considerably silent. Nevertheless, previously hidden sources of vibration and noise…

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(This article belongs to the SP9 (Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020) & Section Acoustics (ACO))
Open AccessArticle
9 Pages, 953 KB Download PDF

Estimation of Influential Parameter Using Gravitational Search Optimization Algorithm for Soccer

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 3, Page # 340–348, 2020; DOI: 10.25046/aj050344
Abstract:

Competitive sport has one phenomenal or fundamental aspect of selecting players into playing squad for a game that can influence a Club or a team in almost all major aspects. Various Characteristics or behavioral aspects of players will be instrumental towards the selection of a specific player into a team depending on the nature, level,…

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(This article belongs to Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
9 Pages, 1,127 KB Download PDF

Design and Validation of a Meter Band Rate in OpenFlow and OpenDaylight for Optimizing QoS

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 35–43, 2020; DOI: 10.25046/aj050205
Abstract:

Technological developments in the Internet and communications have created a vastly complex and dynamic context with diverse heterogeneous networks and fast growth of mobile devices and multimedia. As the Internet becomes the primary mode of communication for many organisations there is requirement to enhance quality of service (QoS) from heterogeneous systems and networks. Traditional networks…

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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
5 Pages, 1,012 KB Download PDF

Optimization of the Feeding Point Location of Rectangular Microstrip Patch Antenna

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 1, Page # 382–386, 2020; DOI: 10.25046/aj050149
Abstract:

Microstrip patch antennas (MPAs) are comfortable and have better anticipation compared to traditional antennas. Not only the weight of this type of antennas is lighter but also, they have little capacity, minimum price, reduced in measurement as well as affluence of fiction then observance. Recently, it has been many times reevaluated for the improvement of…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
9 Pages, 1,243 KB Download PDF

A Multi-Objective Voltage Optimization Technique in Distribution Feeders with High Photovoltaic Penetration

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 377–385, 2019; DOI: 10.25046/aj040648
Abstract:

With increasing photovoltaic (PV) penetration on distribution feeders, voltage functions is always a challenge. To control these variations due to the intermittent nature of PV generation,many utility companies use the traditional voltage regulating devices such as ON/OFF load tap changers, voltage regulators, switched capacitor banks and reactors. The use of smart inverters (SI) has been…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Electrical Engineering (ELE))
Open AccessArticle
19 Pages, 1,546 KB Download PDF

Overview on 5G Radio Frequency Energy Harvesting

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 328–346, 2019; DOI: 10.25046/aj040442
Abstract:

The current industrial landscape is becoming increasingly aware of the need to optimize energy use and management for all domains, including telecommunications. Among others, RF Energy Harvesting is a promising technique for 5G systems as an alternative to traditional energy supply sources. This paper presents 5G landscape and ecosystem. It positions RF-Energy Harvesting in 5G…

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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, 733 KB Download PDF

A Formal Ontology-based Framework Towards an Intelligent Temporal Scheduler

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 387–394, 2019; DOI: 10.25046/aj040248
Abstract:

Time scheduling as seen in timetabling processes with few and/or competing resources has exposed complex interoperable time scheduling. Attempts to resolving these time scheduling processes has been undertaken, using several classical methods, with difficulty due to inherent complexities, constraints and conflicting issues. The use of ontology-based approaches to resolve time complexity is recently adopted due…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Software Engineering in Computer Science (CSE))
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
11 Pages, 1,032 KB Download PDF

A Novel Fair and Efficient Resource Allocation Scheduling Algorithm for Uplink in LTE-A

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 222–232, 2018; DOI: 10.25046/aj030629
Abstract:

With the introduction of new services and new more sophisticated mobile devices the radio network operators are faced with new challanges to increase the system performance. The most recent standards introduced by 3GPP for the new architectures of the Long Term Evolution network address these issues and outline possibilities for optimizing network performance and user…

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(This article belongs to Section Telecommunications (TEL))
Open AccessArticle
5 Pages, 745 KB Download PDF

Impacts of Synchronous Generator Capability Curve on Systems Locational Marginal Price through a Convex Optimal Power Flow

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 131–135, 2018; DOI: 10.25046/aj030615
Abstract:

This paper deals about an application of optimal power flows (OPF) constrained with synchronous generator capability curve for power market analysis (SGCC). OPF main features gather in its mathematical formulation non-convexity, non-linearity, and it shows to be a hard to solve optimization problem. In some operational scenarios, SGCC can limit power flows bringing the theoretical…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
14 Pages, 373 KB Download PDF

An Approach for Determining Rules used to Select Viable Junction Design Alternatives Based on Multiple Objectives

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 5, Page # 407–420, 2018; DOI: 10.25046/aj030547
Abstract:

Transport planners and engineers frequently face the challenge to determine the best design for a specific junction. Many road design manuals provide guidelines for the design and evaluation of different junction alternatives, however these mostly refer to specialized software in which the performances of design alternatives can be modelled. In the first stage of the…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Transportation Science & Technology (TST))
Open AccessArticle
9 Pages, 546 KB Download PDF

A Comparative Analysis of two Controllers for Trajectory Tracking Control: Application to a Biological Process

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 4, Page # 318–326, 2018; DOI: 10.25046/aj030432
Abstract:

The aim of the present work is to guarantee the trajectory tracking of a nonlinear biological process and compare two control approaches. The main objective of this work is to elaborate a fuzzy model and build a fuzzy controllers for a biological process by using the fuzzy Takagi-Sugeno. Two controllers are synthesized, the parallel distributed…

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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
5 Pages, 593 KB Download PDF

A novel mixed-mode universal biquad employing plus current output DVCCs

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 4, Page # 236–240, 2018; DOI: 10.25046/aj030423
Abstract:

This paper refers to a novel mixed-mode universal biquad employing plus current output differential voltage current conveyors with grounded passive components. The circuit performs mixed-mode operation with the selection of the input and output terminals, and it enables low-pass, band-pass, high-pass, band-stop and all-pass responses choosing suitable input signals. The circuit needs no component matching…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Electronic Engineering (EEE))
Open AccessArticle
9 Pages, 847 KB Download PDF

Computation of Viability Kernels on Grid Computers for Aircraft Control in Windshear

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 502–510, 2018; DOI: 10.25046/aj030161
Abstract:

This paper is devoted to the analysis of aircraft dynamics in the cruise flight phase under windshear conditions. The study is conducted with reference to a point-mass aircraft model restricted to move in a vertical plane. We formulate the problem as a differential game against the wind disturbances: The first player, autopilot, manages, via additional…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Aerospace Engineering (EAR))
Open AccessArticle
10 Pages, 344 KB Download PDF

A Joint Safety and Security Analysis of message protection for CAN bus protocol

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 384–393, 2018; DOI: 10.25046/aj030147
Abstract:

One of the prominent challenges of the automotive-transportation system is represented by the integration of security and safety properties within protocols, applications and connectivity mechanisms. A joint safety/security design can sometimes expose to trade-offs, since their requirements may not match perfectly or even be incompatible. This paper analyses an example of security and safety design,…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Information Systems in Computer Science (CIS))
Open AccessArticle
9 Pages, 897 KB Download PDF

Theoretical Investigation of Combined Use of PSO, Tabu Search and Lagrangian Relaxation methods to solve the Unit Commitment Problem

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 357–365, 2018; DOI: 10.25046/aj030144
Abstract:

Solving the Unit Commitment problem (UCP) optimizes the combination of production units operations and determines the appropriate operational scheduling of each production units to satisfy the expected consumption which varies from one day to one month. Besides, each production unit is conducted to constraints that render this problem complex, combinatorial and nonlinear. In this paper,…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Electrical Engineering (ELE))
Open AccessArticle
7 Pages, 1,603 KB Download PDF

Modeling and Control of Collaborative Robot System using Haptic Feedback

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 1549–1555, 2017; DOI: 10.25046/aj0203193
Abstract:

When two robot systems can share understanding using any agreed knowledge, within the constraints of the system’s communication protocol, the approach may lead to a common improvement. This has persuaded numerous new research inquiries in human-robot collaboration. We have built up a framework prepared to do independent following and performing table-best protest object manipulation with…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Automation & Control Systems (ACS))
Open AccessArticle
12 Pages, 2,207 KB Download PDF

A Machine Learning based Framework for Parameter based Multi-Objective Optimisation of Video CODECs

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 1515–1526, 2017; DOI: 10.25046/aj0203190
Abstract:

All multimedia devices now incorporate video CODECs that comply with international video coding standards such as H.264 / MPEG4-AVC and the new High Efficiency Video Coding Standard (HEVC), otherwise known as H.265. Although the standard CODECs have been designed to include algorithms with optimal efficiency, a large number of coding parameters can be used to…

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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
10 Pages, 4,698 KB Download PDF

Monocular Height Estimation Method with 3 Degree-Of-Freedom Compensation of Road Unevennesses

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 1443–1452, 2017; DOI: 10.25046/aj0203180
Abstract:

Height estimation of objects is a valuable information for locomotion of autonomous robots and vehicles. Even though several sensors such as stereo cameras have been applied in these systems, cost and processing time have been motivating solutions with monocular cameras. This research proposes two new methods: i) height estimation of objects using only a monocular…

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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
9 Pages, 808 KB Download PDF

Hybrid Ontology-based knowledge with multi-objective optimization model framework for Decision Support System in intercropping

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 1363–1371, 2017; DOI: 10.25046/aj0203172
Abstract:

The problem of multi-criteria or multi-objective intercropping crop planning makes it vital to consider all related factors under the constraints that will produce the highest revenue and minimum cost. Principles of intercropping elements including soil type, plant area, plant diseases, planting and harvesting time and economics factors (e.g. price, cost) are some of the factors…

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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
8 Pages, 1,026 KB Download PDF

Fault-Tolerant in Embedded Systems (MPSoC): Performance Estimation and Dynamic Migration Task

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 1188–1195, 2017; DOI: 10.25046/aj0203150
Abstract:

Multiprocessor Systems-on-Chip (MPSoC) allow the implementation of heterogeneous architectures with a high integration capacity. In recent years, computational requirements MPSoC are increasing exponentially. This complexity, coupled with constantly evolving specifications, has forced designers to consider intrinsically flexible implementations. Deploying applications typical of multimedia domains is difficult, not only due to the heterogeneous parallelism in the…

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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
11 Pages, 7,389 KB Download PDF

IGS: The Novel Fast IC Power Ground Network Optimization Flow Based on Improved Gauss-Seidel Method

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 711–721, 2017; DOI: 10.25046/aj020391
Abstract:

With silicon technology further scaling, the switching activities together with GHz operation frequency greatly affects the power integrity by generating large IR-drop noises. Excessive IR-drop causes functional failures such as timing failure, abnormal reset and SRAM flipping. The PGN needs to be optimized to reduce IR-drop. The traditional EDA optimization routine repeats the steps such…

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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
8 Pages, 345 KB Download PDF

Power-Energy Simulation for Multi-Core Processors in Bench-marking

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 1, Page # 255–262, 2017; DOI: 10.25046/aj020131
Abstract:

At Microarchitectural level, multi-core processor, as a complex System on Chip, has sophisticated on-chip components including cores, shared caches, interconnects and system controllers such as memory and ethernet controllers. At technological level, architects should consider the device types forecast in the International Technology Roadmap for Semiconductors (ITRS). Energy simulation enables architects to study two important…

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(This article belongs to the SP2 (Special Issue on Computer Systems, Information Technology, Electrical and Electronics Engineering 2017) & Section Hardware & Architecture in Computer Science (CHA))

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