Mohamed Nadjib Mami

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Melt-derived glasses in the system SiO(2)-CaO-Na(2)O-P(2)O(5) were synthesized pure or doped with magnesium from 0.4 to 1.2 wt %, for applications as biomaterials in bony surgery. This chemical element has been chosen because of its high physiological interest. Its introduction for different contents in melt derived glasses has never been studied. The(More)
Aluminosilicate materials synthesized at room temperature present good mechanical properties. Hydroxyapatite, tricalcium phosphate or both offer a high biocompatibility in the biomedical field. In this work, we focused on the composites resulting from associations of these materials. The best compromise between porosity and biomechanical properties versus(More)
The management and analysis of large-scale datasets – described with the term Big Data – involves the three classic dimensions volume, velocity and variety. While the former two are well supported by a plethora of software components, the variety dimension is still rather neglected. We present the BDE platform – an easy-to-deploy, easy-to-use and adaptable(More)
This article is interesting in describing and analyzing the joint didactic activity of two teacher’s with their students in swimming in Tunisia. Its objective is to determine the influence of the teacher’s training and their experience in staging and in the regulation of the didactic situations. To clarify better the complexity of the observed reality, this(More)
Nowadays, there is a rapid increase in the number of sensor data produced by a wide variety of devices and sensors. Collections of sensor data can be semantically described using ontologies, e.g., the Semantic Sensor Network (SSN) ontology. Albeit semantically enriched, the volume of semantic sensor data is considerably larger than raw sensor data.(More)
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