Articles techniques et présentations

In industrial oxygen systems at high temperature and high pressure, contamination by solid particles is one of the principal causes of ignition hazards. Indeed, gas can sweep away particles, generated by corrosion inside the pipes or during maintenance operations (welding residues, ... En savoir plus

Subduction, the process through which the cold and dense oceanic lithosphere sinks into the highly viscous mantle, is the main driving force of plate tectonics and is important for recycling the Earth's materials. Active subduction has not been observed in any other planet in our solar ... En savoir plus

Scraped-surface heat exchangers (SSHEs) handle products that are viscous, that contain particles, and that tend to deposit on the heat transfer surface. The rotating scraper blades continuously remove any deposition on the heating or cooling surface, thereby maintaining the efficiency of ... En savoir plus

Ultrasound transducers are regularly used in medical clinics but their performance is known to deteriorate over time. Causes of this image quality degradation can include delamination between layers, physical breakage of components, short circuits and weakening crystals. Regular ... En savoir plus

In order to exploit the piezotronic effect of Zinc Oxide (ZnO) crystal and to design an optimal high gauge strain sensors. One would require a deep understanding of the dynamics of charge carrier transport and accurately predict the levels of mechanical stress field and electrical charge ... En savoir plus

COMSOL Multiphysics® is used in various engineering fields and has recently been introduced as an efficient tool to solve certain geophysical problems. We used this software to study the mechanisms associated with the buckling formation at a plate-tectonic scale on Earth. Buckling is not ... En savoir plus

Irradiance is fundamental in the energy production of photovoltaic (PV) modules and models can be developed using just irradiance data. However, module temperature has also significant impact on the power output. In locations with high ambient temperatures PV module performance can be ... En savoir plus

Scanning field emission microscopy (SFEM) is a technique based on Topografiner [1] and Scanning Tunneling Microscopy (STM) [2] technologies. In this work, we do SFEM experiments to measure the electrons emitted by a sharp tungsten tip once they are back-scattered by a W(110) surface with ... En savoir plus

In plate tectonics, the relative motion between plates at a plate boundary generates tectonic stress, and most earthquakes occur at these plate boundaries. However, only a small proportion of earthquakes occur in plate interiors, such as the 1811–12 New Madrid Earthquake (8.1 Mw) in the ... En savoir plus

A key goal of nanoscale quantum optics is enhancing the weak interaction of light with matter, enabling applications such as spectroscopy on individual molecules, generating single photons for quantum computing, solar energy harvesting, passive radiative cooling, and nanoscale optical ... En savoir plus