Ethanol has gained much attention as a potential fuel alternative or additive due to its environmental and long-term economic advantages. Recently, a method for synthesis of ethanol from syngas has been proposed. The purpose of this research is to explore the effects of Cu on the synthesis process, in order to find the most efficient […]

C2+ oxygenates synthesis directly from syngas is one of the most promising processes for utilizing non-oil fossil fuels cleanly and efficiently. Through previous experiments, it has been found that the reaction rates and selectivity of C2+ oxygenates increases remarkably with the addition of MnOx. However, the detailed mechanism for the promotional effect of MnOx on […]

The relationship between the structure of rocks near the Earth’s surface and their geophysical properties is little understood. Rock samples from a large, exposed fault will be collected from Serifos, Greece, a region strongly affected by earthquakes and recent tectonism. These samples preserve varying degrees of deformation and structural complexity. The amountof deformation affects the […]

Cavitation bubble can be generated by ultrasound, laser or spark discharge underwater. It has good potential in the application of medical treatment, environmental treatment and surface cleaning. When the bubble collapse, the vapor inside will be compressed quickly and the temperature will rise to several thousand Kelvin, even reach ten of thousand Kelvin, and the […]

Biodiesel refers to a vegetable oil or animal fat based diesel fuel consisting of saturated and unsaturated long-chain alkyl esters. Low value biodiesel has been developed on a commercial scale, however the application is limited. The conversion of biodiesel to high value C8-16 n-alkanes currently uses metal catalysts (Pt/C), which is an expensive technique. Designing […]

The alkylation of benzene is receiving increased attention in petrochemical industry. This is because it is potentially an alternative to produce xylene (used in production of polyester and plastic water bottles) from coal and natural gas. It is expected that changing the acidity of the reaction catalyst would improve the utilization of methanol in the […]

Le projet proposé consiste en l’étude de nouveaux verres constitués d’oxydes dits lourds tels que l’oxyde de gallium, de germanium ou encore de bismuth pour des applications spéciales en optique et en photonique. Ces matériaux doivent être transparents dans le moyen infrarouge, au-delà des verres traditionnels qui sont par exemple employés dans le domaine des […]

La prise de conscience des enjeux environnementaux dans les années 1970, puis des enjeux sociaux engendrés notamment par la multinationalisation, a imposé la notion de développement durable (DD) sur l’agenda des politiques publiques, puis des stratégies d’entreprise. Des formations techniques ou managériales, de nombreux guides, codes, business cases, des normes nationales ou internationales, etc., ont […]

Au stade du babillage (6-12 mois), il existe des liens anatomiques, cérébraux et moteurs entre les activités de parole et de nutrition. La mandibule en particulier, joue un rôle prépondérant dans l’évolution du potentiel articulatoire du bébé et est donc impliquée dans le développement de l’oralité alimentaire et verbale. Les 3 objectifs principaux de ce […]

Our brain is constituted of billions of neurons gathered in networks and communicating between each other through electrical impulses. It is possible to impact on this nervous activity through stimulations of various origins including electric, magnetic or acoustic. Indeed, neurostimulation can artificially induce signals within the nervous network, but also modulate the existing signals by […]

Les populations d’abeille domestique connaissent actuellement un déclin important qui se traduit par une diminution du rendement des ruchers et occasionne des pertes économiques substantielles pour les apiculteurs et agriculteurs. L’utilisation de produits de synthèse fait partie des facteurs pouvant contribuer au déclin des abeilles. Bien que l’attention des chercheurs soit dominée par les insecticides, […]

The progression of Alzheimer’s disease is strongly linked to small beta-amyloid polymers found outside the neurons of the human brain. These polymers interact with neurons and disrupt their function, leading to the neurodegenerative symptoms seen in Alzheimer’s patients. However, certain small molecules are able to promote the aggregation of these polymers into large fibril structures, […]