A5084171443- Carbon Nanotubes in Composites
- Atmospheric chemistry and aerosols
- Vehicle emissions and performance
- Maritime Transport Emissions and Efficiency
- Graphene research and applications
- Advanced Aircraft Design and Technologies
- Atmospheric aerosols and clouds
- Wireless Body Area Networks
- 3D Printing in Biomedical Research
- Microwave Imaging and Scattering Analysis
- Microfluidic and Capillary Electrophoresis Applications
- Material Properties and Applications
- Microfluidic and Bio-sensing Technologies
- Nanomaterials and Printing Technologies
- Photorefractive and Nonlinear Optics
- Innovative Microfluidic and Catalytic Techniques Innovation
- Diamond and Carbon-based Materials Research
- Microwave and Dielectric Measurement Techniques
- Polydiacetylene-based materials and applications
- Optical Coatings and Gratings
- Dielectric materials and actuators
- Nanotechnology research and applications
- Electrical and Bioimpedance Tomography
- Icing and De-icing Technologies
- Thermal Radiation and Cooling Technologies
Centre National de la Recherche Scientifique
2012-2025
Centre Interdisciplinaire de Nanoscience de Marseille
2009-2025
Aix-Marseille Université
2008-2025
Centre d’Élaboration de Matériaux et d’Études Structurales
2010-2015
Université de Toulouse
2010-2013
IVL Swedish Environmental Research Institute
2013
University of Gothenburg
2013
Netherlands Organisation for Applied Scientific Research
2013
Technical University of Munich
2013
Université Toulouse III - Paul Sabatier
2010
Abstract. In this paper emission factors (EFs) for particulate matter (PM) and some sub-components as well gaseous substances were investigated in two onboard measurement campaigns. Emissions from 4-stroke main engines measured under stable-load conditions. The impact of varying engine load on the emissions was one engines, fuel quality other, where heavy oil (HFO) with sulphur content 1% 0.5% marine gas (MGO) 0.1% used. Furthermore, auxiliary studied. EFs PM mass range 0.3 to 2.7 g kg−1...
The interaction of water with laboratory soots possessing a range properties relevant for atmospheric studies is examined by two complementary methods: gravimetrical measurement uptake coupled chemical composition and porosity analysis HTDMA (humidified tandem differential mobility analyzer) inference accompanied separate TEM (transmission electron microscopy) single particles. first method clarifies the mechanism bulk soot allows classification respect to its hygroscopicity. second...
Quantification of atmospheric processes including the water uptake by soot particles various origin, emitted from different sources, requires identification hydrophobic and hydrophilic soot. Water measurements are performed on well-characterized laboratory soots available for studies. Comparative analysis adsorption isotherms compositions allows us to suggest a concept quantification. Systematic demonstrates two mechanisms water/soot interaction, namely, bulk dissolution into...
A major aspect of monitoring the atmosphere is quantification man-made pollution and their interactions with environment. Key physico-chemical characteristics diesel exhaust particulates sea-going ship emissions are presented respect to morphology, microstructure, chemical composition. Heavy fuel oil (HFO)-derived particles exhibit extremely complex chemistry. They demonstrate three distinct morphological structures different composition, namely soot, char mineral/ash. The composition...
We take full advantage of microfluidic valves to achieve a fully automatable gradient generator device, providing flow-free environments, accurate time-zero control, and long-term stability.
Permeable agarose barriers allow flow-free gradient generation, applicable to adherent and non-adherent (swimming) cells, as well co-culture experiments.
The spontaneous interaction between sulfuric acid and carbon nanotubes is studied using Raman spectroscopy. We are able to determine the charge transfer without any additional parameter spectral signature of inner outer walls double-wall nanotubes. While for wall both lattice contraction nonadiabatic effects contribute phonon shift, only contributes nanotube. For nanotube, we separate these two contributions $G$-band shift as a function transfer. have carried out density functional theory...
The occurrence of concentration and temperature gradients in saline microdroplets evaporating directly air makes them unsuitable for nucleation studies where homogeneous composition is required. This can be addressed by immersing the droplet oil under regulated humidity reducing volume to picoliter range. However, evaporation dynamics such a system not well understood. In this work, we present models applicable arrays sessile with dissolved solute submerged thin layer oil. Our model accounts...
Abstract The influence of twin screw extruder dispersion multiwalled carbon nanotubes (CNTs) on the structural, electrical, and rheological properties in poly(ether ether ketone) is studied. Intermediate rotational speeds (200 rpm) co‐rotating screws yield higher electrical conductivity dynamic shear modulus than for lower or when using 3 wt % multiwall CNTs. These improved at intermediate are correlated with state polymer matrix by transmission electron microscopy multispectral Raman...
A method for measuring the spatial profiles of second-order non-linear susceptibility χ(2)(z) in bulk periodically poled crystals and other structures was developed. The is based on general relation between Fourier harmonics parametric signal lineshape ω− k space which governed by dependence output intensity phase mismatch. special cases interferometers, with stepwise or smoothed Fibonacci-type superlattices were considered. Experimental schemes spontaneous down-conversion second harmonic...
Abstract. Emissions of particulate matter (PM) from shipping contribute significantly to the anthropogenic burden PM. The environmental effects PM include negative impact on human health through increased concentrations particles in many coastal areas and harbour cities climate impact. emitted by ship engines consists organic carbon (OC), elemental or black (EC/BC), sulphate, inorganic compounds containing V, Ni, Ca, Zn other metals associated water. chemical composition physical properties...
We present a simple and efficient digital-image processing method to simultaneously monitor the contraction of statistically relevant number microdroplets same size nucleation single salt crystals inside. Each individual microdroplet image is reduced scalar, standard deviation σ grey-level pixels inside region interest containing image, overall dynamics monitored using standard-deviation time-evolution plots. It shown that this approach makes it possible measure time also interact via water...
Interference substrates are useful in enhancing Raman and luminescence signals increasing the optical contrast of nanoparticles atomically thin layers. played a crucial role discovery electric field effect on electronic conduction graphene few years ago. They now used for wide range two-dimensional materials recently heterostructures films. The same or similar can be employed exploration large variety nanoparticles. Although interference has been known to occur within proximity surfaces more...
The study of the formation condensation trails and cirrus clouds on aircraft emitted soot particles is important because its possible effects climate. In present work we studied freezing water engine combustor (AEC) under conditions pressure temperature similar to upper troposphere. microstructure AEC was found be heterogeneous containing both primary metallic impurities (Fe, Cu, Al). We also observed various surface functional groups such as oxygen-containing groups, including sulfate ions,...
Despite the advancements in field of glucose monitoring sensors, development noninvasive, wearable, continuous and comfortable systems is still a real challenge.New technologies are required for effective measurements remaining discreet, painless, to patient avoiding additional costs.This article presents truly noninvasive microwave tomography prototype designed monitoring.The system based on an array dipole antennas placed circular configuration.The transmitted data collected using switch...
Hepatic steatosis may be caused by type 2 diabetes or obesity and is one of the origins chronic liver disease. A non-invasive technique based on microwave propagation can a good solution to monitor hepatic tissue pathologies. The present work devoted dielectric permittivity measurements in healthy fatty range. mouse model following normal high sugar/glucose (HFS) diets was used. We demonstrated change triglyceride glucose concentration HFS diet mice. difference observed range from 100 MHz...