quel impact peuvent avoir les stéréotypes de genre sur la pratiques professionnelles de l'EVRAS?

Conference given outside the academic context (2012)

Disease-related amyloidogenic variants of human lysozyme trigger the unfolded protein response and disturb eye development in Drosophila melanogaster

in FASEB Journal (2012)

Etude de la qualité de vie et de ses prédicteurs chez les enfants atteints de mucoviscidose

Diverse speeche and writing (2012)

Microstructure and mechanical properties of stir processed magnesium matrix composites reinforced with carbon fibres

Conference (2012, January 26)

Mg-Al-Zn alloys have been reinforced with carbon fibres using friction stir processing (FSP) which appears as a promising alternative for the large-scale production of C-Mg composites. The process has ... [more ▼]

Mg-Al-Zn alloys have been reinforced with carbon fibres using friction stir processing (FSP) which appears as a promising alternative for the large-scale production of C-Mg composites. The process has shown its ability to produce sound composites with enhanced strength compared to the non-reinforced alloys. The C fabric is fragmented in short fibres leading to a reduction in grain size and an improved hardness. [less ▲]

Total Electron Content reconstruction using triple frequency GNSS signals

Doctoral thesis (2012)

Nowadays, Global Navigation Satellite System (GNSS) provide accurate three dimensional positioning and navigation anywhere and anytime on the Earth’s surface and are being utilized in numerous civilian ... [more ▼]

Nowadays, Global Navigation Satellite System (GNSS) provide accurate three dimensional positioning and navigation anywhere and anytime on the Earth’s surface and are being utilized in numerous civilian and military applications. The US Global Positioning System (GPS) is currently being modernized to transmit radio signals on an additional third frequency, while the European Galileo is a newly developed system which will transmit on three civil frequency bands. One of the major error sources affecting GNSS is the delay caused when the signals pass through the ionosphere on their way to the Earth’s surface. This delay is inversely proportional to the square of the carrier frequency, and directly proportional to the Total Electron Content (TEC) of the ionosphere. In the last 20 years, several techniques using dual frequency GNSS measurements have been developed to estimate the TEC. With these techniques, systematic errors are confined to at least - 2.5 and 2.5 TECU for a mid-latitude site, and to at least - 5.5 and 5 TECU for a low-latitude location. In the last decades, knowledge about the ionosphere has grown considerably thanks to the use of GNSS measurements, and in turn the GNSS have highly benefited from this improved knowledge. Nowadays the availability of triple frequency GNSS signals enables the development of new processing techniques. We have therefore dedicated this work to developing a TEC reconstruction methodology based on triple frequency GNSS measurements and aimed at improving the accuracy of the final TEC values with regards to existing techniques. The structure of this study is as follows. Firstly, we provide information about GNSS, focusing on concepts, definitions and assumptions which will be used throughout this study. Then, we introduce the concepts of ionospheric propagation of radio signals and give a review of the literature on existing techniques used to extract the TEC with dual frequency GNSS measurements. We further present the complete design of the triple frequency TEC reconstruction methodology. We start by giving the set of combinations which allows us to resolve the original integer ambiguities, then we address the principles of TEC reconstruction, and finally we give an accuracy assessment of the computed TEC values. We also present an innovative technique to calibrate the satellite and receiver code hardware delays. We continue with testing the features developed on a simulated GPS and Galileo observation dataset, as well as on a real GIOVE observation dataset. Finally, we conclude this work by providing a critical overview of our investigations and suggesting various improvements of the current limitations. [less ▲]

Hypertriglycéridémie et rein

Conference (2012, January 24)

Nanotechnologies, et alors?

Conference given outside the academic context (2012)

(R)évolutions dans la gestion des eaux de surface

Scientific conference (2012, January 23)

Improved Domain Decomposition Method for the Helmholtz Equation"

Scientific conference (2012, January 23)

IR and UV spectroscopy of DNA Higher-Order Structures in the gas phase

Conference (2012, January 22)