Academic literature on the topic 'Colorants – Moyen âge – composition chimique'
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Dissertations / Theses on the topic "Colorants – Moyen âge – composition chimique"
Chavanne, Clarisse. "Les couleurs de la Tapisserie de Bayeux." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS527.
Full textThe Bayeux Tapestry, deposited by the French State in the Bayeux Museum, is a unique 11th century masterpiece listed as a UNESCO World Heritage since 2007. It relates the conquest of England in 1066 by Guillaume the Conqueror, Duke of Normandy, on a canvas almost 70 m long. This work of art, wrongly called tapestry, is actually an embroidery of dyed wool threads on linen. Although it is a subject of study extremely studied by historians and art historians, few researches relating to the scientific analysis of this work, as a textile object, have been carried out. Natural dyes were identified as coming from four plants (madder, weld, woad and an unidentified one producing brown) thanks to invasive analysis in 1982. The objective of this PhD was therefore to obtain more complete information on the dyes used, their degradation but also on the dyeing methods of medieval times, thanks to non-invasive methods. Indeed, no sampling or destructive method is currently possible for works of great importance. Thanks to hyperspectral imaging, we first developed a non-invasive scientific method allowing the identification of the dyes present on the Bayeux Tapestry. For this, we created a database of reflectance spectra of wool dyed then degraded in the laboratory, which we compared to the spectra of the Tapestry. Moreover, by combining the data from the images of the reverse side of the Tapestry with the digital grouping of the dyed threads of the front using the hyperspectral imaging data, it was possible to visually recover the original colours of the Tapestry. The results obtained modify the visual perception and reception of the Bayeux Tapestry by improving the understanding of medieval tastes and practices. These data will allow restaurateurs to apprehend better its restoration in 2026, and will support new researches on the subject
Books on the topic "Colorants – Moyen âge – composition chimique"
Ontario. Esquisse de cours 12e année: Sciences de l'activité physique pse4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Technologie de l'information en affaires btx4e cours préemploi. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Études informatiques ics4m cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Mathématiques de la technologie au collège mct4c cours précollégial. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Sciences snc4m cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: English eae4e cours préemploi. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Le Canada et le monde: une analyse géographique cgw4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Environnement et gestion des ressources cgr4e cours préemploi. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Histoire de l'Occident et du monde chy4c cours précollégial. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Géographie mondiale: le milieu humain cgu4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
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