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Cette thA]se porte sur les reprA(c)sentations des enseignants d'Instituts Universitaires de Technologie sur leurs pratiques d'enseignement et de formation. Une approche historique permet de comprendre comment s'est constituA(c), en France, un systA]me d'enseignement supA(c)rieur dual, enseignement gA(c)nA(c)ral et enseignement professionnel, et la place des formations technologiques dans l'enseignement supA(c)rieur. La massification des universitA(c)s A partir des annA(c)es 1960, la transformation de la sociA(c)tA(c) franAaise, de rurale en sociA(c)tA(c) urbaine, d'agricole en industrielle et...

This book teaches readers how wireless networks work, why some of their properties impact wireless network performance at the application level, and what both network engineers and application developers can do to cope with these challenges. Internet users increasingly rely on wireless access links for diverse tasks such as web browsing, video conferencing, interactive games, and data sharing. Irrespective of how they access the Internet, they expect good performance and a high quality of experience. Unfortunately, wireless access networks are much more challenging...

FROM THE AUTHORS' PREFACE
Sensors operating on interferometric principles and mounted inside optical fibers have recently been considered for measuring strain and temperature. Indeed, such sensors have successfully been employed for measuring pressure or temperature in fluids. Fiber optics sensors are especially adept for such measurements because sensors immersed in fluids can easily be calibrated by tests.
Unfortunately, the use of fiber optic sensors inside solids is not as straightforward. Owing to the complex interactions between the sensor and the surrounding material, the...