4,375 datasets found

Carbon nanotubes (NTC) have been discovered in 1991 by Iijima. The selective reduction of oxide solid solutions (Al2-2xFe2xO3, Mg1-yMyAl2O4 and Mg1-zMzO with M = Fe,...

This thesis intends to contribute to a global understanding of the Greek riddle through an analysis of its lexical and semantic field, of the theories devised in...

At a time when one questions the need for a new phase of decentralization, this study compares how two regions invest the field of action that constitutes the field of...

Nulling interferometry, a coronographic technique used in astronomy, is the core of the ESA Darwin mission dedicated to the direct detection of extrasolar earth-like...

I consider the Hofstadter and the Harper operators, regarded as e ective models for a Bloch electron in a uniform magnetic eld, in the limit of weak and strong eld...

"Anchorages" in the Parisian new towns : building "living bowls"

This PhD report deals with the estimation of both Shannon entropy of distributions from independent and Markovian data and entropy rate of pure jump Markov processes...

For purposes of evaluation and manipulation, mathematical functions f are commonly replaced by approximation polynomials p. Examples include floating-point...

The γ-butyrolactone scaffold is a widespread naturally occurring motif, present in numerous compounds possessing biological activities. In this context, paraconic...

The recent growth in telecommunications requires the design of miniaturized circuits operating beyond the gigahertz. Research activities are enormously dedicated to...

We consider the nonstationary flow of a viscous fluid inside a thin tube with elastic walls. The problem depends on two parameters Ɛ which measures the ratio between...

For the last four decades, the semiconductor industry has experienced an exponential growth. According to the ITRS, as we advance into the era of nanotechnology, the...

This thesis is focused on numerical methods dedicated to the simulation of multiphase flow in porous media, involved in petroleum or environmental engineering. We...

In this laboratory work we studied an important atmospheric process typical of polluted costal regions: the heterogeneous reaction of a gaseous pollutant of mainly...

The main objectives of this doctoral thesis were the synthesis and structural characterization of Pb1-xRxZr0.40Ti0.60O3 ferroelectric ceramic samples, with R = Ba and...

Parkinson's disease is the second most common neurodegenerative diseases throughout theworld. In this context, the research project associated with this thesis is to...

The work presented in this thesis belongs to the domain of theoretical and experimental gas phase molecular spectroscopy. It consists of two parts dedicated to two...

This thesis is concerned with transformations and the different means for implementing territorial engineering. Its aim is to analyse territorial engineering through...

The objective of the thesis was clearly identified as the synthesis of nanostructured p-type semiconductors for the fabrication of p-Dye Sensitized Solar Cells...

The obtention of efficient and compact light sources based on silica doped with rare earth (RE) ions demands high emission yields, which require a good dispersion of...