Oxidation at high temperature of zirconia matrix composite dispersed with stainless steel particles
International audience
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Front pinning induced by spatial inhomogeneous forcing in a Fabry-Perot Kerr cavity with negative diffraction
Conference on Lasers and Electro-Optics Europe & International Quantum Electronics Conference (CLEO/Europe-IQEC), Munich, GERMANY, MAY 12-16, 2013
Radiative heat transfer measurement at the nanoscale
Radiative heat transfer measurement at the nanoscale
Reconstructed La, Y, Ce modified MgAl Hydrotalcite as a solid base for aldol condensation of acetone in the presence of H2O
International @ BIOVERT+ZWA:PFO:NES
Measurement of the total cross section of uranium-uranium collisions at a center-of-mass energy of 192.8 GeV per nucleon-pair
N/A
Hallmarks of the Mechanical Coupling to the Substrate in the Photoluminescence Spectrum of Carbon Nanotubes
International audience
Thermoelectric properties of molecular nanostructures
We use the concept of resonant tunneling to calculate the thermopower of molecular nanosystems. It turns out that the sign of the thermovoltage under resonant tunneling conditions depends sensitively on the participating molecular orbital, and one finds a sign change when the transport channel switches from the highes…
Temperature and Composition Dependence of Kinetics of Phase Separation\n in Solid Binary Mixtures
We present results for the kinetics of phase separation in solid binary\nmixtures ($A_1+A_2$) from Monte Carlo simulations of the Ising model in two\ndimensions. The simulation results are understood via appropriate application\nof the finite-size scaling theory. At moderately high temperatures, for\nsymmetric $(50:50…
Photoconductivity of GaN nanowires
Gallium nitride nanostructures continue to attract great interest due to their applications in optoelectronic devices (UV photodetectors, photosensors, and light-emitting devices), high-power/high temperature electronics, nanosensing, and piezoelectric nanogenerators. This paper presents photoconductivity investigatio…
Nanopatterning planar and non-planar mold surfaces for a polymer replication
We present a novel process to create nanopatterns on planar and non-planar polymer replication tools, such as metallic molds for an injection molding. Such tools with nanopatterned cavities then allow affordable mass production of nanopatterned polymer parts with inherent advanced functionalities such as low reflectiv…
Gas phase dehydration of glycerol to acrolein over tungstated zirconias: key parameters for higher stability and acrolein selectivity
International @ +RZN
Tuning the selectivity in glycerol dehydration reaction by precise control of acid-base features of solid catalysts
International @ +DST:SBE:AAU
Magneto-optical spectroscopy of single CdSe nanocrystals
International audience
SWCNT/Inorganic polymer nanocomposite: a new class of Transparent Conductor and UV-Vis Photo – Generator
Synthesis and optical, electronic and optoelectronic properties of a photo-active SWCNT/(Pb, Zn)-phosphate glass composite have been reported. Absorption spectrum of SWCNTs of the composite differs significantly from that of its film which has been attributed to the host related internal stress induced conformational…
Energy Transfer in Molecules/Nanotubes Supramolecular Assemblies
International audience
High performance supercapacitors based on thermally reduced graphene oxide
In the present paper, graphene has been addressed as active material for supercapacitor electrodes. In particular we describe an environmental-friendly two stages procedure for the preparation of graphene-based electrodes for supercapacitors . In the first step, graphene oxide was synthesized by means of the modified…
NIR to visible upconversion in double-clad optical fiber co-doped with Yb3+/Ho3+
In the paper the spectroscopic properties of antimony-silicate-germanate glass and optical fiber co-doped with Yb3+/Ho3+ has been investigated. Upconversion luminescence at the wavelengths of 547 nm (5S2(5F4) → 5I8) and 659 nm (5F5 → 5I8) in holmium ion was obtained as a result of phonon assisted energy transfer betwe…
ÓXIDO MIXTO DE Co-Mg-Al EN LA OXIDACIÓN DE COVs
Se emplea el método de síntesis de autocombustión para obtener un óxido mixto de cobalto el cual se evalúa en reacciones de oxidación catalítica de dos COVs, el tolueno y el 2-propanol, y en la mezcla de los mismos. El óxido Co-Mg-Al-O fue preparado manteniendo la relación (Co2+ + Mg2+ / Al3+) =1 característica de óxi…
Laboratory investigation on utilization of recycled materials in SMA mix
SMA (stone matrix asphalt or stone mastic asphalt) was originally developed in European and German countries as impervious or highly durable wearing surface for bridge decks. But today, it is pavement surface of choice. Generally it consists of two parts, a coarse aggregate and a binder rich mortar. It is made by a mi…
Kinetic characterization of non-linear soft-glassy rheology
Based on numerical simulations of a lattice kinetic model for soft-glassy materials, we characterize the global rheology of a dense emulsion-like system, under three representative load conditions: Couette flow, time-oscillating Couette flow and Kolmogorov flow. In all cases, it is found that the rheology is described…