Concurrence par les services ou concurrence par les infrastructures dans les télécommunications ?

Gérer les informations temporelles dans et par les modèles informatiques

Temporal information proves to be prominent in many scientific problems. As regards Geography, temporal concerns are often in long or mean term interaction with spatial aspects and calendar issues. Practical and theoretical approaches necessarily crossreference various viewpoints from several scientific communities. The use of formal models is a means to make languages and practices more accura...

Découverte d'abstractions dans les modèles, les programmes ou les architectures

— MOTS-CLÉS : Découverte d’abstractions, Analyse Formelle de Concepts, Analyse Relationnelle de Concepts, ingénierie des modèles, diagrammes de classes, composants, architectures

Les maladies causées par les anaérobies pathogènes sporulés chez les animaux domestiques

Usages prescrits ou annoncés, usages observés. Réflexions sur les usages scolaires du numérique par les enseignants

The use of ICT for Education is an extremely complex issue that can and should be analyzed from different perspectives. This article does not intend to cover all of them but, instead, try to address only some of them by developing a high level view showing the contradictions that characterize different official statements and stressing some educational paradoxes. The article describes the Frenc...

Etude des instabilités dans les puits activés par gas-lift

— Gas-lifted wells often present unstable behaviors that cannot be described by hydrostatic laws. In this thesis, we aim at analyzing the well dynamics, especially when its production is irregular. We end up by designing control solutions. We begin with a brief description of the gas-lift activation technique. The negative impact of instabilities on oil production is underlined. Two main mechan...