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Livio D'Alvia, Eduardo Palermo, Zaccaria Del Prete
Application of a novel monitoring technology at "Minerva Medica Temple" archaeological site in Rome

Environmental parameters monitoring is necessary to preserve materials, identify causes of degradation, and quantify their effects, as a function of time. In this research, we propose a measuring unit and present an example of collected data. The unit is based on an ATmega328P microcontroller, gathering signals from: a 9-axis MIMU; a sensor for temperature and relative humidity; and three gas detection miniature boards (NO, NO2 and SO2). The aim of the project is to monitor effects of different factors: (i) seasonal thermal variations; (ii) dynamic response of the structure and (iii) gaseous pollutant concentration. The developed system allows for a prioritization of intervention both for organization and management, and for interventions planning in terms of restoration, consolidation, and conservation.

Fausta Fiorillo, Corinna Rossi
Metric analysis and interpretation of the unit of measurement in the Late Roman Fort of Umm al-Dabadib (Egypt)

This paper presents a metric analysis and interpretation of the 3D survey of the Late Roman Fort of Umm al-Dabadib (Kharga Oasis, Egypt). The aim is to verify if a modular measure was used in the construction of the Fort and whether this was congruent with Roman or Egyptian units of measurement. This research is part of the project LIFE (Living in a Fringe Environment), funded by the ERC CoGrant 681673.

Tommaso Ismaelli, Giuseppe Scardozzi
Integrated archaeological and archaeometric research in Hierapolis of Phrygia (Turkey): new light on ancient building sites

This paper concerns some results of the Marmora Phrygiae Project, carried out in the years 2013-2016 and aimed to reconstruct the building stone procurement strategies adopted in the city of Hierapolis in Phrygia (Turkey), across a broad chronological time span from the Hellenistic epoch to the Byzantine period. The research activities were based on a multidisciplinary approach, integrating the archaeological and art-historian study of the monuments of the city, the topographical investigation of the marble quarries in the territory of Hierapolis, and the archaeometric characterization both of extraction sites and marbles used in the Hierapolitan building sites. Specific lines of research have been also applied to the study of the chemical-physical mechanisms responsible for the decay of the marbles, the archaeometric investigation of the mortars, the study of the artificial materials used in ancient restoration works, and the analysis of colour traces on marble statues and sculptural reliefs.

Pisciotta A, Bottari C, Capizzi P, D'Alessandro A, Martorana R, Scudero S
Multidisciplinary investigations at the Kamarina archaeological site (southern Sicily, Italy)

Multidisciplinary geophysical investigations have been carried out in a small area of the Greek archaeological site of Kamarina, in southern Sicily, in order to support some hypotheses, derived from historical and archaeological bases. After an aerial photographic and thermographic survey, a small area near to the Agora has been considered for magnetometric and GPR investigations. Obtained results show a good correlation and allow to highlight some structures oriented in agreement with the uncovered remains. The use of integrated geophysical techniques allowed a more robust interpretation of the detected anomalies in order to better address the choices for new excavations.

Marina Covolan, Bastien Lemaire
Measuring the Roman building sites. The case of the opus reticulatum in the Necropolis of the Porta mediana in Cumae

The study of a peculiar Roman constructive technique, such as the opus reticulatum, and the identification of an evolutionary line provide new data about the buildings where such technique was applied. Metric and dimensional studies, connected to dated contexts, increase chronological data and that can be set out with other chronological clues provided by the archaeological study of the site. The implementation of this method, based on the direct and dimensional analysis of the stone's elements used in the walls and the processing of the metrical data, show the trend of the opus reticulatum not only for some monumental tombs but also for other buildings of the city of Cuma. Here, with the study of a small part of the necropolis, it is possible to outline the setting of a complex building site that interested three different sectors.

Di Angelo L., Di Stefano P, Fasciani R., Gaudenzi D., Pane C.
The Virtual Reconstruction of the Lake Fucino's Emissary

The Lake Fucino's emissary represents one of the most important hydraulic construction realized in antiquity. Unfortunately, little remains of the original structure of the Roman emissary, obliterated by the Torlonia building and the definitive drying of the lake. This article presents its virtual reconstruction, in order to understand survey and technological issues met by Romans and to visually offer reconstruction theories, interpreting a partially lost evidence of the Roman technology. The engineering resource becomes the means for a deeper comprehension of archaeological questions, combining the tools of engineering and archeology.

I. Cacciari, G. F. Pocobelli, S. Siano
Machine Learning: a Toolkit for Speeding Up Archaeological Stratigraphic Identification

Digging a site, recording the stratigraphic units and interpreting the results in order to comprehend the historical processes of the site formation are part of archaeological excavation work. As archaeologists dig, they consider the extension, color, texture, hardness, and composition of the soil that they are removing. These processes are timeconsuming, and may be affected by human skill. The main idea of this work is to automatize stratigraphic unit detection and characterization. To this end, a Machine Learning algorithm has been applied to digital images of archaeologic excavation sites for classifying regions that are similar in color and the contours of which represent stratigraphic units. Each stratigraphic unit has been characterized in terms of texture according to the mean energy. This combined approach speeds up the documentation work: since the results are readily digitalized during an excavation, they could offer a prompt guide for archaeologists.

Fabio Mangini, Pietro Paolo Di Gregorio, Marco Muzi, Lara Pajewski, Fabrizio Frezza
Wire-grid modelling of metallic targets for Ground Penetrating Radar applications

This work deals with the electromagnetic modeling of metallic cylindrical objects, buried in the soil or embedded in a structure, by means of a suitable set of wires. The most widely used criterion for choosing the wire size is the so-called same-area rule, coming from empirical observation and stating that the total surface area of the wires has to be equal to the surface area of the object being modeled. Recent studies have shown that the same-area criterion yields affordable results but is quite far from being the optimum: better results can be obtained with a wire radius shorter than what is suggested by the rule. This motivated us to carry out an investigation of the accuracy of the rule. We carried out simulations by using a commercial software implementing the finite-element method and found that the best accuracy is achieved with wires having a radius about 10-15% shorter than what is suggested by the rule. In particular, when a higher number of wires is used in the model, the radius needs to be shortened more.

Raffaele Persico, Giovanni Ludeno, Francesco Soldovieri, Albéric De Coster, Sébastien Lambot
Shifting Zoom on a Linear Inverse Scattering Algorithm Applied to GPR Data

In this contribution a shifting zoom on GPR data is applied for the reconstruction of buried targets in the framework of a linear inverse scattering algorithm, and in particular the improvement of the image achieved on depth slices is put into evidence. Shifting zoom is a way to mitigate the problem of the limited view, which is particularly relevant in inverse scattering algorithms since the computational burden related to the calculation and the inversion of large matrixes compels to limit the inversion to investigation domains not very large in terms of wavelength. The dealing will be back-upped with an experimental validation.

Amir M. Alani, Fabio Tosti, Kevin Banks, Luca Bianchini Ciampoli, Andrea Benedetto
Non-Destructive Assessment of a Historic Masonry Arch Bridge Using Ground Penetrating Radar and 3D Laser Scanner

Applications of non-destructive testing methods such as ground penetrating radar (GPR), 3D laser scanners, accelerometer sensors and vibration detecting sensors amongst many others have been used to assess and monitor masonry arch bridge spans (brick and stone) in the past few years. This paper reports the application of high to low frequency GPR antenna systems (2000 MHz, 600 MHz and 200 MHz) and a 3D laser scanner on a historic masonry arch bridge (the Old Bridge, Aylesford - 860 years old) located in Kent, England. The position of different layers of the deck structure was established with the identification of the original stone base of the bridge and location of a number of structural ties (anchors – remedial work carried out previously). Results of the 3D laser scan of the bridge were crucial to initiate long-term monitoring of the structure.

Page 270 of 977 Results 2691 - 2700 of 9762