Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.
AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.
A method is described for copolymg. diallyldimethylammonium chloride (I) with diallyl malonate (II), diallyl fumarate, acrylamide, or a similar monomer to prep. resins which were useful as elec. conducting coatings on paper, as flocculating agents, etc. Th ...
(Akademie der Wissenschaften der DDR, Ger. Dem. Rep.).1977
The morphol. examn. and the structural anal. of the title DSA-O2 electrodes (IrO2-Ta2O5 coating) shows that at moderate firing temp. (.simeq.550 Deg) sepn. of phases occurs with the formation of agglomerates of IrO2 crystals and amorphous Ta2O5. At higher ...
The optical nonlinearity of a GaAs/AlAs periodic layered structure was experimentally investigated for the first time. The shift of the reflectivity peak with increasing intensity was observed. A reflectivity contrast of about 10:1 was obtained by varying ...
The deposition of copper by low pressure chem. vapor deposition (CVD) from Cu bis-hexafluoroacetylacetonate is monitored in real time and in situ by the measurement of the optical reflectivity and elec. resistance of the growing metal film. Changes of the ...
Energy balance and reciprocity relations are studied for harmonic inhomogeneous plane waves that are incident upon a stack of continuous absorbing dielectric media that are macroscopically characterized by their electric and magnetic permittivities and the ...
The coating of PbO2 [1309-60-0] on Ti was carried out after activation of the Ti in boiling HCl 20% and after predeposition with an intermediate protective Au layer. The stability measurements of this electrode showed that the rate of decompn. of PbO2 in H ...
The microstructure and chemical composition of sputtered thin films are strongly correlated with the deposition conditions. In the present work, we report the investigation of the film composition by electron probe microanalysis and photoemission experimen ...
An enzyme carrier is prepd. by coating 0.1-0.25 mm mineral particles with chitosan [9012-76-4] and binding it with glutaraldehyde [111-30-8], which may be reduced by NaBH4. Alternatively, an enzyme may be bonded to the chitosan layer by a carbodiimide to s ...
Absolute diffuse reflectance and transmittance FT-IR spectra of optically thin layers of surface-derivatized silica powders are measured, using a photopyroelectric detector placed in direct contact with the sample. The role of inhomogeneities in the surfac ...
