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Karia Ba Mohamed, Morocco

Azizi M.,Mohamed iversity
Lecture Notes in Electrical Engineering | Year: 2016

The prevalent use of wireless networks has led to noteworthy development in security techniques that aim to protect information. The existing standard for exchanging a secret key of authenticating users and securing data transmission within EAP-TLS protocol relies on Public Key Infrastructure. This technique is secure only in case of limited computational power of eavesdropping. We accordingly propose a quantum extension of EAP-TLS which enables a cryptographic key exchange with the authentication of a remote client peer, with absolute security, ensured by the laws of quantum physics. A model checking approach based on PRISM tool is applied to check some security properties for the proposed scheme. © Springer International Publishing Switzerland 2016.


Elgettafi M.,University Mohammed Premier | Elgettafi M.,University of Barcelona | Elmandour A.,University Cady Ayyad | Himi M.,Mohamed iversity | And 2 more authors.
Journal of Materials and Environmental Science | Year: 2016

The deterioration of the quality of superficial and subsurface waters by motorway organic pollution is a problem of great concern nowadays. The absorption of road runoff waters through sinkhole clay filled in a karstic area has been proposed as a way to the attenuation pollution. The groundwaters near of surface are very vulnerable at this pollution. The study of the storm basin of Belle-Croix (RN 20 Loiret) indicates a diminution of DOC levels through the first meter of infiltration in sinkhole, and then little change occurs down 5 meters. However only the > 10 KD (10 nm) organic fraction is retained. This fraction is weakly fluorescent and should correspond to black carbon (BC) matter associated to clays as it is suggested by Electron Microscopy in Transmission EMT observation. The < 10 KD fraction which are the more fluorescent account for up to 80 % of total DOC at 5 meter depth, at the contact with the limestone.


Abid M.R.,Alakhawayn University | Fihri I.F.,Alakhawayn University | Mousannif H.,Cadi Ayyad University | Bakhouya M.,International University in Rabat | And 6 more authors.
2014 2nd World Conference on Complex Systems, WCCS 2014 | Year: 2014

Cloud Computing is emerging as a very promising technology changing the way we approach Computing. MarUnivCloud is a project aiming at the promotion of Cloud Computing via the deployment of a real-world private Cloud interconnecting multiple Moroccan Universities. The deployed Cloud will benefit both students and researchers, and can serve as a seed for a futuristic public Cloud. In this paper, we present the goals, and the mission, of MarUnivCloud. We delineate relevant technical aspects (e.g., architecture and services), and present real-world testbed deployments, at two university sites, using open-source software, e.g., OpenStack and OpenNebula. © 2014 IEEE.


Haddag B.,CNRS Mechanical Energy, Theories, and Applications Laboratory | Atlati S.,CNRS Mechanical Energy, Theories, and Applications Laboratory | Atlati S.,Mohamed iversity | Nouari M.,CNRS Mechanical Energy, Theories, and Applications Laboratory | And 2 more authors.
Engineering Transactions | Year: 2012

This work aims to analyze the effect of the cutting parameters on chip segmentation of the aluminium alloy A2024-T351 during machining process. In this work, two parameters are considered: the tool rake angle of the cutting tool and the feed under dry machining. An orthogonal cutting FE model is developed in Abaqus/Explicit for this purpose. A thermo-visco-plastic-damage model for the machined material and thermo-rigid behaviour for the cutting tool have been assumed. At the chip/tool contact zone, the modified Coulomb friction model has been adopted. Thermal effects are considered by taking into account the heat flux generated by visco-plastic strain and also by friction at the tool-workpiece interface. The obtained results showed the effect of the tool rake angle and feed on the cutting force and chip morphology as well as temperature distribution at the tool rake face.


Azizi Y.,Mohamed iversity | Azizi M.,Mohamed iversity | Rahmoun M.,Mohamed iversity
International Journal of Applied Engineering Research | Year: 2015

The most important issue that must be solved in designing a data transmission algorithm for wireless sensor networks (WSNs) is how to save sensor node energy while meeting the needs of applications as the sensor nodes are battery limited. While satisfying the energy saving requirements, it is also necessary to achieve the quality of service. In case of emergency work, it is necessary to deliver the data on time. This paper proposes an enhancement of the existing DYMO routing protocol. The used routing algorithm which is adopted by Energy Efficient Dynamic MANET On-demand for Delay Sensitive Applications (EE-DYMO-D) has enhanced the Route Request handling process to save the energy in mobile node and ensure that delay does not exceed a maximum value. NS-2 simulator is used to compare performances of DYMO and EE-DYMO-D. The obtained results are so promising. © Research India Publications.

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