Proceedings

Technical study on a piece of Cashmere textile attributed to late Qajar era

The present study is a report of laboratory studies for technological purposes a piece of Cashmere textileknown as Reza Torki Termeh, attributed to late Qajar era, a Cashmere of Yazd, with a brown or black field, cotton fiber, with a repeated paisley motif (botte-jeqqe) and framing pattern and with worktoptexture is known, which includes to answer some questions regarding to the nature of the fibers, twisting of the fibers, type of weaving, and method of production. In this regard, library, laboratory, and field studies were used; interviews and correspondence with professors, many trips to...

Some considerations on measurement errors in archaeological survey

The aim of the paper is to evidence the measurement errors that occur during a survey, considering the current techniques used in archaeology. Some considerations are necessary in order to find possible solutions for improving the quality and the accuracy of a project. Different experimentations have been made on some case studies for evidencing differences among the methods and the related errors. A specific part has been dedicated to the photogrammetric process from drones and the errors in the representation of the archaeological areas. The processing step has been also analyzed through...

Photogrammetry for large scale documentation. The case of the microregion of the Minoan site of Gournia.

Today photogrammetry is a widely used tool in archaeological practice, although it is often auxiliary to traditional methods of documentation. In this paper we present a different perspective on photogrammetry, that is large scale landscape documentation of an archaeological site and its microregion. Such a documentation can be done with tools that are already used during excavations: drones, standard photography and spatial data coming from Total Station measurements. This method allows to gather large amount of data, that can be used to a wide variety of analysis focusing on the relation...

Handheld laser-induced breakdown spectroscopy instrument for the diagnosis of the conservation state of stone monuments

Laser-induced breakdown spectroscopy (LIBS) has been in use for decades, but only recently the technique has progressed so to allow the construction of efficient handheld, self-contained commercial instruments featuring a large range of capabilities. In particular, the development of portable instruments able to perform non-invasive spatially resolved in-situ analysis has provided an impressive impulse to the scientific investigation of cultural heritage materials. In this work, the design of an handheld LIBS instrument and the first test measurements performed on a sedimentary rock monument...

TDR-based Water Content Estimation on Globigerina Limestone Through Permittivity Measurements

Most monuments and historical buildings in the Maltese Islands are made of the local Globigerina Limestone (GL). This type of stone, however, is very delicate and prone to degradation caused by the environmental conditions of the islands. Hence, for the preservation of the Cultural Heritage monuments, it is necessary to promptly assess the health status of these structures and, in particular, their water content (which represents one of the major causes of degradation). Starting from these considerations, in this work, a time domain reflectometry (TDR)-based method for estimating water...

Verification and photogrammetric documentation of the archaeological site in Lake Boczna

Diagnostic campaign and innovative conservation treatments carried out on the statue "La Speranza" by Odoardo Fantacchiotti

This work is focused on the conservation restoration workscarried out on the Speranza, monumental sculpture of the 19th century placed inside the English Cemetery in Florence. The statue was covered by scattered greenish and blackgrayish patinas mainly due to the biological growth. Optical microscopy, culture-based methods and CFPAM imaging (Pulse Amplitude Modulated fluorometry of the Chlorophyll Fluorescence) were used to characterize the biodeteriogens, while the study of the stone material and of the decay layers was performed trough microstratigraphic observations and X-ray diffraction...

Double-pulse micro-laser-induced breakdown spectroscopy applied to three dimensional mapping of stone monument samples

In this study, double-pulse micro-laser induced breakdown spectroscopy (DP-µLIBS) associated to optical microscopy was applied to obtain a microscale three dimensional compositional mapping of a limestone monument encrusted quoin before and after its laser cleaning treatment. Mapping was carried out microdestructively by scanning the laser beam across the stone sample rough surface without further preparation. The compositional maps of the elements were obtained from the intensity of their DP-µLIBS emission lines.DP-µLIBSmapping analysis of the limestonewas able to discriminate effectively...

A Low Power City-Scale Wireless Sensor Network for the Monitoring of Monumental Structures

In this paper the authors describe the architecture of a Wide Area Wireless Sensor Network (WSN) to be employed for the monitoring of large scale monumental structures. The proposed Sensor Network is composed by low power sensor nodes, provided with LoRa connectivity, able to measure displacements of structural cracks in buildings with a ten-micrometer degree of accuracy. Description is provided about the functioning of the displacement sensor, the structure of the sensor network node and the overall network architecture. The whole infrastructure has been designed for the monitoring of the...

Innovating Cultural Heritage promotion through virtual and interactive technologies

The Italian cultural heritage is well known due to its extraordinary richness, but its potential attractiveness is still not exploited. The cultural institutions today are facing several challenges to attract visitors, but it is not enough; it is necessary to find an innovative way to communicate culture, in order to bring it closer to the need for cultural knowledge and experience of citizens and tourists. This paper aims at introducing an innovative technological framework, which will enable the sharing of a digitalized cultural heritage experience. Furthermore, the potential benefits and...