Search results for "Domaines"

Caracterisation of the mecanisms regulating membrane structuration modifications induced during defense response signalisation in plants

2020

Spatial distribution of pasma membranes (PM) components is tightly regulated to provide the cell an optimal physiological state. The level of order degree is a suitable parameter to study PM organization, reflecting the intensity of interactions taking place between PM components and so the level of their packing. During our work, we used the environment sensitive probe di-4-ANEPPDHQ to assess the level of order degree of tobacco BY-2 cells PM in different situations: during the time-course of cell regeneration and in the particular case of an elicitation by cryptogein.We measured that the level of order degree of PM is modulated during the slow process of cell regeneration. This regulation…

Towards the observation of Territorial Energy Systems : a geographical design approach for energy territorialisation

2014

Having an effect on a system calls for a thorough knowledge of it. The main goal of this research is toprovide a general framework for the interpretation of geographic information, as well as a methodologicalframework to understand the interrelations between territory and energy in the context of a territorialobservatory. A literature review of energy planning on the one hand and spatial planning on the other revealssimilar developments in the two fields, in particular in terms of decentralisation and environmental concerns.The change of geographical scale chosen for the analysis brings new possibilities for public intervention. Inthis context, therefore, local authorities have a key role t…

Modulational instability and domain wall solitons in optical fibers

2000

The first part of this thesis presents some theoretical and experimental results about modulational instability and domain wall solitons in bimodal fibers.In the second part is devoted to the interaction of counter-propagating waves in an isotropic optical fiber

Robust estimation of mean electricity consumption curves by sampling for small areas in presence of missing values

2017

In this thesis, we address the problem of robust estimation of mean or total electricity consumption curves by sampling in a finite population for the entire population and for small areas. We are also interested in estimating mean curves by sampling in presence of partially missing trajectories.Indeed, many studies carried out in the French electricity company EDF, for marketing or power grid management purposes, are based on the analysis of mean or total electricity consumption curves at a fine time scale, for different groups of clients sharing some common characteristics.Because of privacy issues and financial costs, it is not possible to measure the electricity consumption curve of eac…

Palais et fisc à l'époque carolingienne: Attigny

1982

Domaine rural acquis par Clovis II en 651, Attigny fut une résidence du maire du palais Pépin à partir de 749. Devenu un palais avec l'avènement des Carolingiens, il cessa d'être fréquenté après 931. La fonction essentielle de ce palais découle de sa situation géographique située à proximité de la voie romaine Reims-Trêves, la localité constituait une étape commode entre est et ouest du royaume franc, puis entre les royaumes de Francie occidentale et de Lotharingie. Le fisc d'Attigny, mentionné pour la première fois en 877, peut être connu par l'analyse de trois diplômes, dont deux très postérieurs à la période carolingienne. Il englobait au début du Xe siècle au moins trois mille cinq cent…

Study of the dynamics of biomolecules by high speed atomic force microscopy and surface enhanced Raman spectroscopy

2015

This thesis focuses on the coupling of High–Speed Atomic Force Microscopy (HS-AFM) and Surface Enhanced Raman Spectroscopy (SERS) for biomolecule analysis. We have designed a fabrication protocol to manufacture “SERS-active” substrates. The efficacy of gold, silver and gold-silver bimetallic crystalline nanoparticle substrates were evaluated. We have investigated the impact of optical and morphological features of the substrates on Raman signal intensity by analyzing well-known samples such as bipyridine ethylene and methylene blue molecules. We took an interest in three distinct biological problematics with HS-AFM and SERS analyses. First, we have detected the chemical signature of cytochr…

Self-polarization of light in optical fibers

2015

The second performs the first experimental demonstration of the polarization domain walls which cancel the effects which degrade the intensity and spectral profile of a telecom signal during propagation. This phenomenon comes from non-linear coupling between the two orthogonal polarization modes of light propagating in a Kerr medium in normal dispersion regime, and causes a modulation in phase opposition of the two modes along the fiber. It is possible to lock two optical pulse trains complementary intensity so that the pulses do not suffer the effects of distortion occurring in the fiber in order to maintain the information to be transmitted. And a distortion-free propagation was achieved …

Enquête sur les bâtiments industriels cisterciens : l'exemple de Preuilly

1991

Cailleaux Denis. Enquête sur les bâtiments industriels cisterciens, l'exemple de Preuilly. In: Bulletin de la Société Nationale des Antiquaires de France, 1991, 1993. pp. 151-164.

Vauluisant

1999

Rois et moines en Perthois pendant le haut Moyen Âge : à propos des origines et du temporel de Montier-en-Der

2000

P. Corbet; International audience