Search results for "métallique"
showing 10 items of 45 documents
Cocheren (57) – « 73 Rue du Général de Gaulle ». Un habitat structuré du second âge du Fer (La Tène C2/La Tène D1), une voie romaine (Ier-IIIe s. ap.…
2016
L’épée à poignée métallique de Niffer (Haut-Rhin) : un exemple de production occidentale au Bronze moyen
2018
National audience
Dépôts de bronzes et relations visuelles autour du Camp du Château à Salins-les-Bains (Jura, France) à la fin du Bronze moyen et au début du Bronze f…
2017
Systematic field surveys have been carried out in the surroundings of the Camp du Château near Salins-les-Bains for several years. These investigations led to the discovery of forty-odd hoards dating mainly from the end of the Middle Bronze Age and the beginning of the Late Bronze Age. The good accuracy of their localization allows us to study how they were integrated into the landscape. Their positioning suggests that the choice of location favored topographical criteria. We are interested in the question of intervisibility between the place of hoarding and the remarkable points of the natural and social landscape, especially the hill-forts. The results of GIS analysis show the constitutio…
Porphyrines et tétraazamacrocycles dérivés du DOTA : association de deux ligands pour la chélation de métaux d'intérêt en imagerie médicale multimoda…
2012
The goal of my PhD thesis was to synthesize new molecules, which give access to heterobimetallic complexes with interesting properties for multimodal imaging. In this manuscript, several main points have been studied. The first part of this work concerns the synthesis and characterization of ligands. We describe here the synthesis of five new ligands based on the association of one porphyrin and one or several cyclen derivatives. Those ligands are water-soluble. During the synthesis, we have targeted improvements to our work and developed a new synthetic pathway, which allowed us to obtain one ligand incorporating a porphyrin, a cyclen derivative and a free amine function. This function cou…
Conditioning metallic aluminum in magnesium phosphate cements
2016
This work deals with the stabilization / solidification of radioactive waste using cement.More particularly, it aims at assessing the chemical compatibility between metallic aluminum and mortars based on magnesium phosphate cement. The physical and chemical processes leading to setting and hardening of the cement are first investigated. X-ray diffraction (XRD), thermogravimetry (TGA) and nuclear magnetic resonance spectroscopy (31P and11B MAS-NMR) arefirst used to characterize the solid phases formed during hydration, while inductively coupled plasma atomic emission spectroscopy analysis (ICP-AES), electrical conductimetry and pH measurementsprovide information on the pore solution composit…
Quelques considérations sur la réparation et le réutilisation du métal à l'âge du Bronze : aspects techniques, culturels et symboliques
2019
International audience; La métallurgie du cuivre et des alliages cuivreux, apparue en Europe au IVe millénaire avant notre ère, connaît un fort développement à l’âge du Bronze avec le développement de la production en série par moulage au début du IIe millénaire. Ces nouveaux matériaux et procédés transforment fondamentalement le rapport que les Hommes entretiennent avec l’objet : d’unique, celui-ci devient reproductible à l’infini grâce au moulage, modifiable à souhait par déformation plastique, suppression et/ou ajout de matière, et même renouvelable grâce au recyclage par refonte, qui permet de produire un objet neuf à partir de métal usagé. Ces nouvelles possibilités modifient ainsi les…
Dissimilar joining of copper to stainless steel and TA6V to stainless steel by high power beams : understanding and modeling of physicochemical pheno…
2010
The present study is dedicated to the comprehension of the mechanism of materials mixing during dissimilar welding by high power beam sources. We have been interested in joining of two couples of metallic materials which present different metallurgical problems: •copper- stainless steel (miscibility gap, important difference in physical properties);•TA6V- stainless steel (oxidation on air, formation of intermetallic phases which made the joint brittle).For the first couple of materials, continuous laser Nd:YAG welding and electron beam welding have been applied. The experimental study of morphology evolution, composition, microstructure and mechanical properties has allowed establishing the…
The Pratz le Curtillet settlement
2016
Among the earliest habitats of the early Middle Ages studied in Franche-Comté, the Pratz le Curtillet a settlement sets itself apart by its location in the Jura highlands, renowned for its remoteness and inhospitable landscapes. On the Lizon plateau, the scope of the archaeological work explored on the 16 hectares and the quality of the remains still constitute an exceptional complex today. An imposing 16m by 13m stone building flanked by an annex forms the residential part of the estate, while sheltering fodder and livestock, while the second building houses a forge. Domestic and artisanal equipment provide ample documentation on the living conditions of this small community of high status…
Sanctuaries and rural settlements along the Roman road Lyon-Trier on the civitates of the Lingoni
2015
From a memory of a master on the study of the material from the sanctuary of Beire-le-Châtel "The Pâtis the Letto" as well as new studies such as material from the fanum Lux "Le Bois Giraud", the objective of this thesis is to understand the people who live along the Roman road Lyon - Trier on the civitates of the Lingoni et go on these places of worship. The material found in these sanctuaries was confronted with one of the rural settlements to distinguish local attendance and passing travelers. Finally, the study allows to emphasize the role of settlements - administrative center of the city and secondary towns - and communication routes in the genesis of Lingones’ places of worship but a…
Cavaillon (84), Ancienne cathédrale Notre-Dame-et-Saint-Véran. Suivi archéologique de sondages géotechniques
2023
Pour les besoins de l’étude géotechnique, six sondages ont été creusés dans et autour de l’ancienne cathédrale de Cavaillon en février 2020. Ils avaient pour objectif de comprendre les désordres structurels observés sur l’édifice en mettant à jour les fondations des différentes constructions (chapelles, chevet, nef et annexe). Compte-tenu du contexte archéologique, le Service Régional de l’Archéologie de PACA a prescrit leur suivi archéologique. L’objectif était de documenter les niveaux d’occupation mis au jour sans détruire les vestiges remarquables, en particulier les maçonneries et les sépultures. Parmi les sondages, les trois situés au nord de l’ancienne cathédrale, le long de la rue D…