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Antonio Donato, Mauro Francesco La Russa, Aybuke Sultan Koca, Marco Aquino, Sergio Santoro, Efrem Curcio, Michela Ricca
Nano-TiO2 coatings to support the preservation of the stone cultural heritage

The constant exposure of the stone cultural heritage to the combined action of atmospheric agents and pollution represents a threat to its conservation and protection. Nano-sized titanium dioxide (TiO2) materials have been widely used as protective coatings due to their ability to create self-cleaning surfaces, thus limiting maintenance costs and promoting the degradation of pollutants. The present work aims to test innovative and selfcleaning products based on TiO2 for applications in the field of cultural heritage. The properties of TiO2- based materials were evaluated by capillary water absorption, accelerated aging test in a climatic chamber, colorimetric and contact angle measurements.

Maria Pia Albanese, Luciana Randazzo, Mauro Francesco La Russa, Armando Taliano Grasso, Maurizio Paoletti, Michela Ricca
Multidisciplinary analysis on a marble bas-relief of unknown origin

The purpose of this study is to demonstrate how a disciplinary approach is an excellent tool in the field of forensic investigations, capable of answering the questions posed by the institution and obtaining as different and as much information as possible on the findings analyzed, reconstructing the history of often decontextualized artifacts. In the present work, the results of the FTIR-ATR and SEM-EDX analyses performed on micro-fragments and powders taken from a marble bas-relief, seized by the Cosenza Carabinieri Unit for the Protection of Cultural Heritage and Anti-Counterfeiting (Calabria, Italy), are reported.

Andrea Bergomi, Valeria Comite, Paola Fermo, Michela Ricca, Mattia Borelli, Cristina Maria Belfiore, Luciana Randazzo, Mauro Francesco La Russa
Application of a polymer-based photocatalytic coating for the protection of limestone stones substrates: an exposure study

In the last decades there have been several studies on cultural heritage regarding the performance of protective and consolidating coatings for the prevention of decay. A coating must have several characteristics such as: efficiency, breathability, and must be durable and reversible. In this research work we tried to verify the performance of a commercial protective product such as Fosbuild FBLE 200, which is composed of a TiO2 nanopowder dispersed in an aqueous solution of an acrylic polymer. This product, which exhibits depolluting, antimicrobial, water-repellent and self-cleaning characteristics, has been applied on different lithotypes such as: Carrara marble, Noto and Comiso stone and exhibited in two different outdoor environments such as Catania and Palermo. These two cities are mostly affected by pollution produced by vehicular traffic; moreover, Catania is also affected by pollution produced by the activity of Mount Etna.

Michela Ricca, Maria Pia Albanese, Fabio Bruno, Loris Barbieri, Andrea Macchia, Mauro Francesco La Russa
An Ocean of Science: an educational laboratory approach for the protection and preservation of the marine environment

The "An Ocean of Science" project promotes effective interventions and innovative educational paths to support the growth of knowledge and skills in schools, helping competent institutions to guarantee more inclusive cohesion policies with a high cultural and scientific impact. The project also supports innovation in education and training by providing opportunities for cultural and socio-educational development within the framework of the cultural heritage located in the marine environment and the protection of the sea.

Carlo Trigona, Eliana Costa, Giuseppe Politi, Serena Rapisarda, Anna M. Gueli
Vibration Monitoring in the Monastero of Santa Caterina (Palermo, Italy)

This article describes the application of a measurement system in the field of cultural heritage conservation, and, in particular, to a canvas painting applied on a wooden support. The artwork is placed inside a niche in the Monastero of Santa Caterina in Palermo (Italy). It is a historical painting by the painter Giuseppe Patricolo depicting the Deposition. Considering the presence of the wooden structure, it is important to measure mechanical vibrations that can in fact cause degradation phenomena in wooden structures. The main objective of the presented research is the characterization and observation of the performance of the measurement and monitoring system for assessing the health condition of artworks.

Giuseppe Stella, Alessia D'Anna, Agata Di Stefano, Rosaria Galvagno, Francesca La Perna, Andrea Matamoros, Graziana Mendosa, Giuseppe Politi, Anna Maria Gueli
Luminescence dating method for out-of-context samples

In the standard luminescence dating methodologies the general equation used to determine the age in luminescence dating is given by the ratio between the Equivalent Dose (ED) and the Annual Dose rate (AD). The ED, measured using luminescence signals, is the total absorbed dose starting from the last "zero event" while the DR, evaluated by in situ and extra situ radioactivity measurements, represents the rate at which energy is absorbed from natural radioactivity present in the sample and in the environment. For samples for which information on environmental dose contribution is lacking, which are considered out-of-context samples, this method is not applicable. However, the combination of different methodologies of luminescence dating, the fine-grain, and inclusion technique from same sample, allows age to be determined independently of knowledge of the environmental dose-rate. In this work, the method named subtraction dating is applied to an archaeomaterial sampled near Angkor Thom, Siem Reap, Cambodia. The dating results obtained using subtraction method were compared with that obtained, for each grain size, using standard approach with good results.

Adriana Incardona, Dario Allegra, Giuseppe Furnari, Rosaria Galvagno, Serena Rapisarda, Filippo Stanco, Giuseppe Stella, Anna Maria Gueli
Color specification for color rendering

The present work was carried out as part of the CLEAR project, which aims to create a virtual diagnostic laboratory for polychrome artifacts through the definition of an image acquisition and processing protocol with high resolution and accuracy in terms of colour rendering. To achieve this goal, contact spectrophotometric and distance spectroradiometric measurements for colour specification will be performed. All data will be used for the processing, training, and validation of a predictive model for the evaluation of colour differences and for the creation of a two-way correspondence between RGB colour values and coordinates expressed in the CIELAB colour space. On this occasion, the results obtained on a first series of laboratory specimens consisting of monochrome cubes to highlight the influence of the contact and distance measurements on the calculation of the RGB triplet are discussed.

Lara De Giorgi, Giovanni Leucci, Lucrezia Longhitano, Nicola Masini, Chiara Torre
The complex bedrock structure at the Manfredi Castle (Supersano, Lecce)

Reflection seismic, GPR and penetrometer surveys, were performed at the Manfredi Castle (Supersano, Lecce, Italy) in order to help the engineers in the restoration work. The study tries to understand: 1) whether, using high-resolution reflection seismic data, is possible to provide an essentially continuous structural image of the shallow subsurface; 2) to reconstruct, using both seismic and penetrometer surveys, the bedrock surface below the castle; 3) to discover, using GPR data, the presence of features of archaeological interest. From a technical perspective, the survey was successful. The reflection seismic data effectively image the shallow subsurface and support the penetrometer data. The GPR data pointed out the presence of some man-made structures that could be of archaeological interest.

Maurizio Delli Santi
GIS for the enhancement of the farms in the territory of Oria (Puglia, South ern Italy)

The GIS for the systematic filing of the farms in the territory of Oria (province of Brindisi) has been organized in such a way that the common characteristics of the buildings can be detected immediately: in this perspective, appropriate tables have been drawn up, converted into special formats, to be dynamically connected to the artefacts and vector themes being analyzed. These tables, beyond the peculiar typological, structural, constructive and architectural characteristics, offer fundamental technical data and results so that an orderly and efficient recovery plan for the farms present in the territory of Oria can be first conceived and then planned.

Nicodemo Abate, Mariano Prodomo, Alessia Frisetti, Nicola Masini
HBIM and Extended Matrix for the archaeological reconstruction of the excavated medieval contexts: the case of the castle of Monteforte Irpino (AV)

This paper aims to propose an Extended Matrix approach to the medieval castle of Monteforte Irpino (Avellino, Campania, Italy), for the reconstruction and understanding of archaeological contexts after excavation and documentation activities. Extended Matrix (EM) is a particular approach to HBIM (Heritage Building Information Model) mainly based on the reconstruction of archaeological context starting from several type of data, such as: archaeological data, survey data, stratigraphic evidences, bibliographic sources, comparison. Thanks to the use of three-dimensional photogrammetry from UAS and from the ground, and thanks to the use of an extended matrix tool completely open source, Archaeologists have been able to reconstruct the archaeological context of the site and propose considerations based on the three-dimensional data produced, which find reliable comparisons in other similar Italian contexts.

Page 104 of 977 Results 1031 - 1040 of 9762