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Bouroumine A.,Ecole Mohammadia dIngenieurs | Zekraoui M.,Faculte des science et Techniques | Abdelilah M.,Ecole Mohammadia dIngenieurs
Proceedings - 2016 International Conference on Wireless Networks and Mobile Communications, WINCOM 2016: Green Communications and Networking | Year: 2016

Smart Cities identify and employ VANET Networks as a future network capable of reducing the overhead on the networks with installed infrastructures, multiple researches have illustrated the importance of the opportunistic network connectivity it offers within the city, where some researches still focus on the improvement they may offer to control the traffic and improve the road safety, other researches define how the integration of the VANET Networks within the Smart Cities offer a huge benefit to the connectivity within the city. In this paper, we focus on the data packets transmitted between source and destination nodes that require an Acknowledgement, the data exchange is carried out using the VANET Networks, where we use the AODV routing protocol as the standard protocol, we also propose in this paper an enhancement to the AODV routing protocol for VANET Networks in the context of Smart Cities that benefit both the Packet Delivery Ratio and the Quality of Service of the current network. © 2016 IEEE.

Soufiane Z.,Institute National des Postes et Telecommunications | Slimane B.,Ecole Mohammadia dIngenieurs | Abdeslam E.-N.,Institute National des Postes et Telecommunications
Proceedings - 2016 3rd International Conference on Systems of Collaboration, SysCo 2016 | Year: 2016

The future electrical grid or the Smart Grid is an intelligent power network featured by its two-way flows of electricity and information. With an integrated communication infrastructure, Smart Grid manages the operation of all connected components to provide reliable and sustainable electricity supplies. However, utilities from all over the world are now facing the key challenge of finding the most appropriate architecture that can satisfy their future communication needs. The architecture models given by the international organizations of standardization are conceptual, so it is insufficient to grab the relation between the network components. In this paper, we introduce the current architectures proposed by international organizations, that is, NIST, ITU and IEEE. And we highlight their limits which prevent us from understanding the communication flow in the system. Then, we present a communication infrastructure model based on these international roadmaps and guides. Unlike other architectures, this one fulfills the six functionalities that Smart Grid network must achieve. Finally, we present the communication technologies that can be used for interconnecting the components and standards for each section. This paper is a preliminary step in our work. In fact, we aim in the future work to check our architecture by modeling the system and take the step of verification and validation. © 2016 IEEE.

Mahmoudi H.,Ecole Mohammadia dIngenieurs
Proceedings of 2016 International Conference on Electrical and Information Technologies, ICEIT 2016 | Year: 2016

In this paper, a study of a type Boost rectifier was carried out. Among the systems operating in discontinuous mode, the latter offers the ease of control and carry less important voltage on the semiconductor. However, since the input current is discontinuous, that increases the Electromagnetic Interference (EMI). So to meet the standards, an additional filter is necessary within a restricted power range. To improve the performance of this type of systems, we proposed a new configuration in which we included the command of two rectifiers 'Push-Pull'. This technique allowed the system to face less pulsating currents, and therefore it enhances the filtering. Great importance was given to the modeling of this type of rectifier. The simulation results were presented taking into account the control loop. The performance of the new solution was evaluated using the electrical efficiency. © 2016 IEEE.

Outahajala M.,Royal Institute for Amazighe Culture | Benajiba Y.,Philips | Rosso P.,Polytechnic University of Valencia | Zenkouar L.,Ecole Mohammadia dIngenieurs
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2011

The aim of this paper is to present the first Amazighe POS tagger. Very few linguistic resources have been developed so far for Amazighe and we believe that the development of a POS tagger tool is the first step needed for automatic text processing. The used data have been manually collected and annotated. We have used state-of-art supervised machine learning approaches to build our POS-tagging models. The obtained accuracy achieved 92.58% and we have used the 10-fold technique to further validate our results. © 2011 Springer-Verlag.

Kaddour A.A.,Ecole Mohammadia dIngenieurs | Elalami N.,Ecole Mohammadia dIngenieurs | Elmazoudi E.,Cadi Ayyad University
International Journal of Mathematics and Computers in Simulation | Year: 2013

This paper deals with the design of robust fault estimation and fault tolerant control of a continuous age structured model of a harvested fishery system. Takagi-Sugeno approach is used to represent the harvested fish population model, where the effort is used as control term, the age classes as states and the quantity of captured fish per unit of effort as measured output. Actuators faults are initially estimated using a fuzzy observer. Then, based on the fault estimation, an observer based dynamic output feedback fault tolerant controller is designed to reject the effect of faults by stabilizing the closed loop system. The synthesis of the control and the observer are independently made. The conditions of the observer convergence and of the control existence are formulated in terms of Linear Matrix Inequalities. The simulation results demonstrate the effectiveness and applicability of the proposed design method.

Raji A.,Sultan Moulay Slimane University | Hasnaoui M.,Cadi Ayyad University | Naimi M.,Sultan Moulay Slimane University | Slimani K.,Ecole Mohammadia dIngenieurs | Ouazzani M.T.,Ecole Mohammadia dIngenieurs
Computers and Fluids | Year: 2012

In this paper, a numerical study is carried out on thermal natural convection in a square cavity with adiabatic horizontal walls, thermally active vertical walls (maintained at constant but different temperatures) and containing blocks. The governing parameters are the Rayleigh number (10 3Ra10 8), the relative thermal conductivity of the solid blocks (10 -3k r10 3) and their number (N=1, 4, 16 and 64). The effect of these parameters on the fluid flow (air) and heat transfer through the active walls of the cavity is analyzed in the case where the volume occupied by the fluid is maintained constant. In comparison with an enclosure equipped with one block located in its centre, the results obtained in the case of the block's fragmentation show that the heat transfer and the flow intensity could be significantly reduced by increasing the number of the blocks and their relative conductivity, k r. It is also demonstrated that, the results of the saturated porous medium are recovered when the number of blocks is large enough (1600 < N < 8100). © 2012 Elsevier Ltd.

Ngote N.,Ecole Nationale de lIndustrie Minerale | Guedira S.,Ecole Nationale de lIndustrie Minerale | Cherkaoui M.,Ecole Mohammadia dIngenieurs | Ouassaid M.,Ecole Nationale des science Appliquees
Journal of Electrical Engineering and Technology | Year: 2014

Induction motors are critical components in industrial processes since their failure usually lead to an unexpected interruption at the industrial plant. The studies of induction motor behavior during abnormal conditions and the possibility to diagnose different types of faults have been a challenging topic for many electrical machine researchers. In this regard, an efficient and new method to detect the induction motor-fault may be the application of the Time Synchronous Averaging (TSA) to the stator current Park's Vector. The aim of this paper is to present a methodology by which defects in a three-phase wound rotor induction motor can be diagnosed. By exploiting the cyclostationarity characteristics of electrical signals, the TSA method is applied to the stator current Park's Vector, allowing the monitoring of the induction motor operation. Simulation and experimental results are presented in order to show the effectiveness of the proposed method. The obtained results are largely satisfactory, indicating a promising industrial application of the hybrid Park's Vector-TSA approach.

Ouanaim M.,Al Akhawayn University | Harroud H.,Al Akhawayn University | Berrado A.,Ecole Mohammadia DIngenieurs | Boulmalf M.,Al Akhawayn University
IWCMC 2010 - Proceedings of the 6th International Wireless Communications and Mobile Computing Conference | Year: 2010

User profiling is commonly used to support personalization as well as to enhance usability of software systems by automatically adapting to the needs and preferences of their users. This paper presents an approach to dynamically update mobile users' profiles so that they can be provided with appropriate services while moving from one location to another. We propose an XML generic user profile structure that is dynamically updatable as the user experiences new services and that can be used by different software systems and applications. The proposed profile learning mechanism makes use of clustering users with a subset of similar attributes to predict appropriate services to a new user, and segmenting services with a subset of similar usage to discover and recommend new services that might be of interests to a mobile user. We demonstrated the feasibility of our approach by presenting a case study in tourism where tourists are assisted during their travels by providing them with services and information of interest. The tourist preferences and her/his current location are incorporated in the proactive formulation of suggestions on the tourist mobile devices about nearby points of interests (e.g. museums, restaurants....). Copyright © 2010 ACM.

Saffi M.,Ecole Superieure de Technology | Cheddadi A.,Ecole Mohammadia dIngenieurs
Hydrological Sciences Journal | Year: 2010

Illegal pumping from underground reservoirs is approached as an inverse problem. The procedure seeks among a set of suspected potential areas the ones from which water is effectively pumped out (or in) and at what rate does this take place? Influence coefficient and finite element are combined in order to simulate the aquifer response to hypothetical pumping scenarios. Then the optimal scenario which makes of simulated head distribution the best fit to the observed headset is retained as solution to the foregoing question. This optimal scenario is derived by minimizing the classical least squares error using the Levenberg-Marquardt Algorithm (LMA). Under the condi- tions of the treated aquifer example it is observed that LMA is non-convergent unless a regularizing measure is taken during the calculation of the correction applied to the parameter-vector between two successive iterations. The procedure is tested with uniform and non-uniform pumping. In both cases, it yields good identified pumping rates within the observation period, but its performance deteriorates markedly for the rates corresponding to the days when no monitoring well is yet active. © 2010 IAHS Press.

Brahim E.F.,Ecole Mohammadia dIngenieurs | Mohammed K.I.,Ecole Mohammadia dIngenieurs | Samir B.,Ecole Mohammadia dIngenieurs
World Academy of Science, Engineering and Technology | Year: 2010

E-learning is not restricted to the use of new technologies for the online content, but also induces the adoption of new approaches to improve the quality of education. This quality depends on the ability of these approaches (technical and pedagogical) to provide an adaptive learning environment. Thus, the environment should include features that convey intentions and meeting the educational needs of learners by providing a customized learning path to acquiring a competency concerned In our proposal, we believe that an individualized learning path requires knowledge of the learner. Therefore, it must pass through a personalization of diagnosis to identify precisely the competency gaps to fill, and reduce the cognitive load To personalize the diagnosis and pertinently measure the competency gap, we suggest implementing the formative assessment in the e-learning environment and we propose the introduction of a pre-regulation process in the area of formative assessment, involving its individualization and implementation in e-learning.

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