Search results for "Artefacts"

Uneven Data Quality and the Earliest Occupation of Europe—the Case of Untermassfeld (Germany)

2017

AbstractThe database regarding the earliest occupation of Europe has increased significantly in quantity and quality of data points over the last two decades, mainly through the addition of new sites as a result of long-term systematic excavations and large-scale prospections of Early and early Middle Pleistocene exposures. The site distribution pattern suggests an ephemeral presence of hominins in the south of Europe from around one million years ago, with occasional short northward expansions along the western coastal areas when temperate conditions permitted. From around 600,000-700,000 years ago Acheulean artefacts appear in Europe and somewhat later hominin presence seems to pick up, w…

ALTERNATIVE MATERIALS FOR PROTECTING CU- AND AG-BASED ARCHAEOLOGICAL ARTEFACTS

2009

Recovering bronze metallurgy from archaeological artefacts for the production of reference materials in conservation science

2007

The production of reference Cu-based alloys is the first step of an original experimental protocol to be used in the field of conservation and restoration of metal artefacts. The production of these synthetic alloys has a double value. They can be used both as suitable substitutes of unique archaeological pieces for testing new materials and methods for conservation, and as guidelines for contemporary metal production. We report on a research activity focused on the recovery of the ancient production techniques from the investigation of archaeological copper-based artefacts. The chemical, physical and metallurgical characterization of several Cu-based artefacts, found in different Italian a…

L’utilisation du clou dans l’architecture aux IIe-Ier siècles av. J.-C. : technologie, typologie, conservation, fréquence

2016

International audience

Non-Model Based Method for an Automation of 3D Acquisition and Post-Processing

2008

Most of the automation for 3D acquisition concerns objects with simple shape, like mechanical parts. For cultural heritage artefacts, the process is more complex, and it doesn't exist general solution nowadays. This paper presents a method to generate a complete 3D model of cultural heritage artefacts. In a first step, MVC is used to solve the view planning problem. Then, holes remaining in 3D model are detected, and their features are calculated to finish acquisition. Different post-processing are applied on each view to increase quality of the 3D model. This procedure has been tested with simulated scanner, before being implemented on a motion system with five degrees of freedom.

Provenance of Early Bronze Age Metal Artefacts in Western Switzerland Using Elemental and Lead Isotopic Compositions

2011

Chapter 4</br>Will our children have the chance to do research on today’s digital books?

2016

In this chapter, I will first position my considerations about the sustainability of ebooks for future research in the context of book history; moreover, I will introduce basic concepts of (migration and emulation) as well as challenges to the long-term preservation of digital data in greater generality. After that and taking current research on past (printed) books as an analogy, I shall try to outline which kinds of (digital) material will be indispensable in the future to do research on today's digital book production: published digital materials and unique (digital) artefacts. Finally, I shall present the results of my exemplary studies to find out which precautions for the future avail…

Une quête d'exactitude : machines, algèbre et géométrie pour la construction traditionnelle des équations différentielles

2015

In La Géométrie, Descartes proposed a “balance” between geometric constructions and symbolic manipulation with the introduction of suitable ideal machines. In particular, Cartesian tools were polynomial algebra (analysis) and a class of diagrammatic constructions (synthesis). This setting provided a classification of curves, according to which only the algebraic ones were considered “purely geometrical.” This limit was overcome with a general method by Newton and Leibniz introducing the infinity in the analytical part, whereas the synthetic perspective gradually lost importance with respect to the analytical one—geometry became a mean of visualization, no longer of construction. Descartes’s…

Non-invasive characterization of archaeological polychrome pottery and metallic artefacts: advantage and limits of XRF in situ analysis

2014

Le site néolithique final de la Bastide Blanche (Peyrolles-en-Provence, Bouches-du-Rhône) : Premiers résultats 2003-2004

2006

The Bastide Blanche (Peyrolles-en-Provence, Bouches-du-Rhône) is a small settlement perched in edge of the Durance where the principal occupation is ascribable to the extreme end of the Neolithic era. Recognized in the past, it was the subject of multiple excavations but of any study nor of any specific publication. A survey campaign and a first excavation campaign programmed in 2003 and 2004 make it possible today to specify the homogeneity of the assemblies often mentioned in the scientific literature. Beyond the first description of the structures and archaeological furniture put at the day, this short note makes it possible to announce the existence of a sequence for the Rhone-Ouvèze gr…