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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. Source

Khazri Y.,Hassan II University Mohammedia - Casablanca | Rouane M.,Hassan II University Mohammedia - Casablanca | Fahli A.,Hassan II University Mohammedia - Casablanca | Moussetad M.,Hassan II University Mohammedia - Casablanca | And 2 more authors.
International Journal of Online Engineering | Year: 2014

E-learning environments are becoming increasingly popular in higher education. One of the most important e-learning resources is the remote laboratory. It gives students opportunities to learn technical training through internet, perform real experience and interact with real equipment and real instruments laboratory. This paper describes the development of interactive remote laboratory that allows learners to use, control and interact with the measuring instruments used in the real laboratories (like oscilloscope, GBF...). Therefore, we chose to put the manipulation of the signal treatment module on line. Source

Nguyen Q.T.,CNRS Polymers, Biopolymer and Surfaces Laboratory | Alaoui O.T.,CNRS Polymers, Biopolymer and Surfaces Laboratory | Alaoui O.T.,Hassan iversity | Yang H.,East China University of Science and Technology | Mbareck C.,CNRS Polymers, Biopolymer and Surfaces Laboratory
Journal of Membrane Science | Year: 2010

The dry-cast process was applied to the preparation of microporous membranes of different structures, using semi-crystalline and amorphous synthetic polymers. It consisted in casting a solution of a polymer in a mixture of a volatile solvent and a less volatile nonsolvent into a film, and leaving the film for a preferential evaporation of the solvents in air. A dry microporous membrane was obtained through liquid-liquid phase inversion with or without polymer crystallization, depending on the polymer nature, without the need to coagulate the membrane in a nonsolvent bath. We analyzed in details the physico-chemical aspects of the membrane formation in the case of poly(vinylidene fluoride), then discussed the applicability of the process to other common polymer materials like poly(vinyl chloride), poly(vinylacetate), poly(styrene) and polysulfone-cardo. The process advantages and drawbacks in the microporous membrane preparation were given. © 2010 Elsevier B.V. Source

Ait Houaich Y.,Hassan iversity | Belaissaoui M.,Hassan iversity
2015 World Congress on Information Technology and Computer Applications, WCITCA 2015 | Year: 2015

The use of open source software (OSS) offers several advantages such as cost savings, security and the ability to modify the source code [1], which encourages companies to adopt it. Today there is a large number of OSS available that meet different requirements (Feller, and Fitzgerald, 2002) [2] [3], which makes their selection a very difficult stage. The contribution of this work is to develop our national economy, by proposing a new evaluation model that will facilitate to decisionmakers of small and medium enterprises in Morocco and in other countries to improve the productivity by enhancing their information system with open source technology. To test and validate our proposed model, we applied it at a Moroccan company that sells heavy equipment and wished to supervise the IT infrastructure of its subsidiaries in Africa using a scalable and free solution, and also at nineteen small and medium companies. © 2015 IEEE. Source

Berqia A.,University of Algarve | Hanini M.,Hassan iversity | Haqiq A.,Hassan iversity
International Journal of Mobile Computing and Multimedia Communications | Year: 2012

Packet scheduling and buffer management are the two important functions adopted in networks design to ensure the Quality of Service (QoS) when different types of packets with different needs of quality share the same network resources. The Packet scheduling policy determines packet service priorities at the output link, it can reduce packet delay and delay jitter for high-priority traffic. The buffer management involves packet dropping and buffer allocation. The overall goal of such schemes proposed in High Speed Downlink Packet Access (HSDPA) is to take advantage of the channel variations between users and preferably schedule transmissions to a user when the channel conditions are advantageous; it does not take in consideration the characteristics of the flows composing the transmitted traffic to the user. This paper compares two queue management mechanisms with thresholds applied for packets transmitted to an end user in HSDPA network. Those mechanisms are used to manage access packets in the queue giving priority to the Real Time (RT) packets and avoiding the Non Real Time (NRT) packets loss. The authors show that the performance parameters of RT packets are similar in the two mechanisms, where as the second mechanism improves the performance parameters of the NRT packets. © 2011, IGI Global. Source

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