IMEKO Event Proceedings Search

Page 11 of 939 Results 101 - 110 of 9382

Georgia Ntasi, Brunella Cipolletta, Carmen Aprea, Laura Dello Ioio, Celia Duce, Emanuele Crisci, Emilia Bramanti, Alessandro Vergara, Ilaria Bonaduce, Leila Birolo
Proteomics and spectroscopic analyses for the molecular characterization of collagen-based animal glues

Animal glues are widely used in restoration, as adhesives, binders, and consolidants for organic and inorganic materials. Their variable performances are intrinsically linked to the adhesive characteristics of collagen, which determines the chemical, physical, and mechanical properties of the glue. A shotgun proteomic analysis provided animal origin, even when blended, and allowed to distinguish between hide and bone glue on the basis of the presence of collagen type III. Proteomics and analytical pyrolysis coupled to GC-MS have been used to analyse chemical modifications in collagen, demonstrating their variability among different glues and showing that, on average, bone glues are less deamidated than hide glues, but more fragmented, and mixed-collagen glues are overall less deamidated than pure glues. Spectroscopic analyses have also been exploited to gain insights in structural changes occurring upon glue preparation from natural materials.

Eleni Konstantakopoulou, Annalaura Casanova Municchia, Roberto Ferretti, Simone Porcinai, Marco Ferretti
Quantitative criteria to configure and characterise portable X-ray fluorescence spectrometers

The emergence of hand-held X-ray fluorescence devices (HH-XRF) has changed the cultural approach to the analysis of ancient materials. These instruments are characterised by highly miniaturised hardware and powerful software and much of the designer s efforts are devoted to encourage users to consider the device as a black box, with no need to go into the substance of its functioning. For those who prefer to go into the substance instead, this paper discusses some preliminary activities necessary to prepare it for the field. In particular, we discuss the optimisation of the primary filter and the calibration of two XRF devices i.e. a hand-held Bruker Tracer 5g and an in-house developed portable spectrometer, by considering two quantitative parameters: the limit of quantification and the relative uncertainty of quantification.

Giulia Marcucci, Antonella Scherillo, Maria Pia Riccardi, Costanza Cucini, Marco Tizzoni, Daniela Di Martino
An innovative neutron spectroscopic imaging technique: mapping the elements distribution inside the bulk of archaeological artefacts

This work highlights the significant advances in neutron imaging at the ISIS Neutron and Muon Source, specifically focusing on the development of the nuclear technique Neutron Resonance Transmission Imaging (NRTI). NRTI combines the sensitivity to elemental and isotopic composition with detailed morphological information, utilizing the epithermal portion of the neutron flux. Unlike standard neutron radiography/tomography, NRTI allows for the identification and localization of specific elements and isotopes within an object's volume without physical sampling. The technique preserves detailed time and energy information for each pixel of the detector, enabling enhanced analysis and visualization of elemental distribution and composition. A case study related to Cultural Heritage is presented to demonstrate the effectiveness of NRTI in non-destructive investigations of inhomogeneous artefacts, specifically focusing on the excavation finds related to the first testimony of ancient brass production in Milan, Italy.

Lucas Ignacio Gheco
When a painting is a history on the rock. A methodological approach to rock art studies through the case of El Alto-Ancasti's Mountain

It is a common approach in cultural heritage studies that portable and non-invasive techniques are used. However, when dealing with rock art research this represents further challenges.
Our research carried out in El Alto-Ancasti's Mountain (Catamarca, Argentina), at several archaeological sites, have studied the historical processes of production, uses and transformation of caves and shelters with rock art. From a material approach to rock art, we have sought to understand the history of painting and use of different caves through a methodology that combines different lines of evidence: study of tonalities, overlaps and morphological characteristics of the motifs; spatial studies; and archaeometric analysis. As a result, we have established different chronologies and some social practices associated with rock art in El Alto-Ancasti.
All this highlighted the complex and diverse nature of El Alto-Ancasti’s rock art caves and shelters, and the need to understand their particular histories through new strategies and appropriate methodologies.

Antonio Rodríguez Alcalá, John F. Chuchiak IV, Zoraida Raimúndez Ares, Maria Felicia Rega, Luis Díaz de León, Hans B. Erikson
The Virtual Recreation of Mani's Auto de Fe (1562): Methodology and Approach to an Historical Event

In the context of heritage conservation, an important and recently developed part of any project is its virtual restitution. Virtual modelling is a growing discipline, used for various purposes, both academic and recreational. Thanks to the use of 3D reconstruction and augmented reality, it is possible to reconstruct an historical event and create an interactive experience aimed at a large audience. Praeteritas Urbes, in collaboration with INAH (Museo Regional de Palacio Cantón) and a multidisciplinary group of researchers, intends to reconstruct an important historical event for the history of the colonial period in the Mayan area, the Auto de Fe of Maní of 1562. This article discusses the methodology used to conduct the project, including the process of the virtual reconstruction of the former convent of St. Michael the Archangel, the virtual recreation of the historical characters, and the curation of a virtual museum exhibition.

Pablo Sicre-González, Ana María Niveau-de-Villedary Y Mariñas, Juan Ignacio Vallejo Sánchez, María Auxiliadora Llamas Márquez
Building and reconstructing contexts. Interdisciplinary approach to the enhancement of Phoenician-Punic archaeological elements exhibited in the Museum of Cádiz (SW, Spain)

We present here the knowledge transfer project that we are currently developing as a result of the collaboration between the University of Cádiz and the Provincial Archaeological Museum. The main objective is the virtual reconstruction of certain archaeological contexts of a Phoenician nature documented in the city of Cádiz, with the aim of making them directly accessible to the general public. Employing an interdisciplinary approach, we begin by taking reliable reconstructive hypotheses from a historical-archaeological point of view and transforming them into scientifically cross-checked 3D environments. Within them are incorporated three-dimensional models of the most representative Phoenician-Punic archaeological pieces that are on display in the Museum s Colonisations Room. Finally, all the information generated by the virtual reconstruction process will be included in the Museum s museography and didactic discourse.

Matteo Lombardi
A Landscape Matrix: the EM tool and the via Appia

This paper approaches the application of the Extended Matrix Tool to a broader landscape context. The idea underpinning this research is that this tool has a great potential in de-structuring landscape complexities and bridging together specialists from different fields thanks to semantic modelling. The selected case study, the II mile of the via Appia, frames a multi-stratified scenario made of a combination of Roman funerary monuments, private villas, squatters, homeless and XVIII-XIX century casals. This case study offers the opportunity to test a workflow in which archaeological data and 3D visualisations could effectively enhance archaeological research as much as foster multidisciplinarity.

Eleonora Scopinaro, Simone Berto, Emanuel Demetrescu
A new section of the Extended Matrix methodology: Transformation Stratigraphic Unit (TSU)

This paper illustrates the preliminary results of an ongoing research concerning new investigative methods and tools useful to formalize transformative processes on built heritage, in a chronological perspective, through the study of surface alteration and degradation pathologies as Stratigraphic Units. This study aims at proposing a new section of the Extended Matrix (EM) method, composed of cutting-edge software solutions for managing and representing information, as a possible bridge between the archaeology of architecture, strictly connected to chronology, and the conservation science field of research, based on the surface analysis. The goal is to allow more accurate comparative analysis for conservative purposes and produce scientific-based reconstructive hypotheses. Present workflow, still being tested, is based on open-source tools, and is designed to be reproducible on any type of artifact according to FAIR principles.

Nicola Delbarba
Virtual Reconstruction as a Scientific Inquiry Tool: the Late Antique Wall of Aquileia (M2) Using the Extended Matrix

This paper focuses on the implementation of virtual reconstructions as a scientific research tool within the traditional workflow of universities. The case study revolves around the late Roman defensive wall of Aquileia, known as M2, in the city s Southeast sector, where the University of Verona conducts research. The paper demonstrates how virtual reconstruction serves as an additional instrument for researchers engaged in archaeological investigations, providing scientific inquiry and transparency in reconstruction models. The formal language known as Extended Matrix (CNR) is utilised in this project to enhance scientific mapping and transparency. It outlines the stages of study, including archaeological investigations, comparative and typological studies, and the virtual reconstruction using three-dimensional surveys, digital replicas, scientific back end through Extended Matrix, and photorealistic modeling. The study argues that virtual reconstruction can contribute to research, dissemination, and public archaeology activities, and it holds potential as an implemented tool in future research phases.

Anaïs Guillem, Antoine Gros, Abergel Violette, Livio De Luca
Reconstruction beyond Representation in Notre-Dame de Paris

Despite their aesthetic expressivity, realistic images of reconstructed pasts tend to withhold the scientific work of reconstruction and fail to provide scholarly reusable documentation. The contribution examines the operative role of (3D-)representations in the context of archaeological reconstruction. We propose a semiotic framework to look at reconstruction images. A semiotics’ analysis (aesthetic, technical and analytical attributes) of practical examples of reconstruction images from the Notre-Dame de Paris arch reconstruction shows that there is a double effect of compression in the reconstruction and its representation. To alleviate these compressions in discourse and meaning, we focus our effort on the argumentation patterns and the conflict of interpretations as foundations of reconstruction scholarship. If we consider the 3D-reconstruction not in its illustrative image of reconstruction, it becomes an inherent part of the reconstruction data. We demonstrate how the argumentation can tie together the visualizations and the reconstruction. The linking of representation and reconstruction is possible through consistent documentation practice using CIDOC CRM and CIDOC CRMinf to elicit the reasoning and the argumentation in the reconstruction process.

Page 11 of 939 Results 101 - 110 of 9382