F. Richard

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Classification of urban areas from a density measure is required in many application fields. For instance, propagation models for cellular radio networks are parameterized by coefficients whose value is linked to the nature of the soil. Geomarketing is also interested in knowing the population concentration (urban, suburban ...). This paper presents the(More)
Multifunctional materials can be engineered by combining multiple chemical components, each conferring a well-defined function to the ensemble. Graphene is at the centre of an ever-growing research effort due to its combination of unique properties. Here we show that the large conformational change associated with the trans-cis photochemical isomerization(More)
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