The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. http://http://dspace.unitus.it:80 2013-05-23T12:51:16Z 2013-05-23T12:51:16Z Genco, Giorgia Lo Monaco, Angela Pelosi, Claudia Picchio, Rodolfo Santamaria, Ulderico http://hdl.handle.net/2067/1270 2011-06-03T16:41:17Z 2008-12-31T23:00:00Z

Title: La valutazione sperimentale dei consolidanti per il legno Authors: Genco, Giorgia; Lo Monaco, Angela; Pelosi, Claudia; Picchio, Rodolfo; Santamaria, Ulderico Abstract: The aim of this work has been to test some commercial products as consolidants of the structure of two wooden species: poplar (Populus sp.) and walnut (Juglans regia L.). The chosen products are acrylic, epoxy and aliphatic compounds available in commerce and often employed for other applications. The wooden samples have been prepared according to the UNI ISO instructions. The wood characteristic parameters have been measured: density, basic density, shrinkage, porosity, colour. The wooden samples have been artificial aged by means of frost/thaw cycles. The consolidants have been applied to the wood samples aged and not by means of under vacuum immersion. At the end the wood characteristic parameters and the FTIR spectra have been measured to evaluate the product effectiveness for the wood treatment.

2008-12-31T23:00:00Z Genco, Giorgia Lo Monaco, Angela Marabelli, Maurizio Maura, Claudia Pelosi, Claudia http://hdl.handle.net/2067/1330 2011-06-03T16:14:04Z 2007-12-31T23:00:00Z

Title: La porta lignea del duomo di Todi. Indagini microclimatiche e conoscitive finalizzate a una proposta conservativa Authors: Genco, Giorgia; Lo Monaco, Angela; Marabelli, Maurizio; Maura, Claudia; Pelosi, Claudia Abstract: Lo studio condotto sulla porta lignea centrale del duomo di Todi ha avuto come obiettivo la conoscenza dello stato conservativo del manufatto tramite il monitoraggio microclimatico dell’ambiente, l’osservazione diretta e l’analisi in laboratorio delle specie legnose e dei materiali di restauro utilizzati; ciò al fine di ottenere dati oggettivi atti a orientare le scelte conservative. Si vuole sottolineare che il presente lavoro è stato effettuato sulla base dell’interesse dimostrato dall’Opera del Duomo di Todi che ha coinvolto docenti, ricercatori e laureandi dell’Università della Tuscia al fine di ottenere dati scientificamente validi per poter avanzare le migliori proposte conservative per il manufatto. A tal fine, sono state effettuate due campagne di rilevamento, una invernale ed una estiva, che hanno previsto la misurazione puntuale dell’umidità relativa dell’aria, della temperatura e dell’umidità superficiale del legno ed infine dell’irraggiamento solare . Inoltre, sono stati posizionati tre datalogger (nell’ambiente interno del portone, sul coro ligneo del duomo e sul campanile) per la misurazione dell’umidità relativa e della temperatura dell’aria per un periodo di circa un mese, sia nella stagione invernale che in quella estiva . Sono stati prelevati alcuni campioni per il riconoscimento delle specie legnose, sia nella porzione esterna della porta che in quella interna ed è stato condotto un esame presso il laboratorio di microscopia del DAF dell’Università della Tuscia. L’analisi spettrofotometrica dei materiali utilizzati nell’ultimo restauro, è stata invece realizzata presso il Laboratorio di diagnostica per la conservazione e il restauro ‘Michele Cordaro’ della facoltà di Conservazione dei Beni Culturali dell’Università della Tuscia. Una ricerca eseguita presso l’archivio del capitolo della cattedrale di Todi, ha permesso di ricostruire le diverse fasi storiche della porta e di conoscere alcuni interventi di restauro eseguiti sul manufatto nel secolo scorso. Infine, è stata eseguita una campagna fotografica che ha consentito l’elaborazione di un rilievo grafico della porta.

2007-12-31T23:00:00Z Genco, Giorgia Maura, Claudia Lo Monaco, Angela Marabelli, Maurizio Pelosi, Claudia http://hdl.handle.net/2067/1624 2011-06-21T09:22:04Z 2008-12-31T23:00:00Z

Title: A Methodological Approach to the Safeguard of the Wooden Door of Todi Cathedral Authors: Genco, Giorgia; Maura, Claudia; Lo Monaco, Angela; Marabelli, Maurizio; Pelosi, Claudia Abstract: The study for the central wooden door of the Todi Cathedral has been the subject of two theses of the Faculty of Conservation of Cultural Heritage of Tuscia University. The aim of the research was to characterize the state of conservation of the artefact in comparison with the environmental microclimate. In parallel with the microclimatic survey, naked eye observations, laboratory analyses of the wooden species (carried out in the Department of Forests and Environments Laboratory of Tuscia University) and of the restoration materials (carried out in the Laboratory of Diagnostics for Conservation and Restoration “Michele Cordaro” of the Faculty of Conservation of Cultural Heritage of Tuscia University) have been also performed, in order to obtain experimental data valuable for conservation. A bibliographic study of documents available at the archive of Todi Cathedral has allowed to reconstruct the historical phases of realization and past restorations of the artefact. The wooden door of Todi Cathedral was realized in 1521 by the master Antonio Bencivegna da Mercatello da Massa. In 1623 it was seriously damaged by a lightning, so some years later, in 1639, the door was partly reconstructed by the artist Carlo Lorenti. Instead the plinth was reconstructed in 1792. Afterwards the door underwent several restoration interventions; the last one was carried out between 1998 and 1999. Nowadays the state of conservation of the door is seriously compromised because of both the last incorrect restoration interventions and the position that the wooden door takes up in the Cathedral façade. The deterioration of the surface above all was caused by the variations of temperature and relative humidity (RH%) and it is different in the various parts of the door. In fact, the inner surface shows a less deterioration due to both the more stable environmental conditions and the plain manufacturing typology.

2008-12-31T23:00:00Z De Santis, Alberto Lo Monaco, Angela Mattei, Elisabetta Pelosi, Claudia Santancini, Marco http://hdl.handle.net/2067/1626 2011-06-27T15:58:00Z 2007-12-31T23:00:00Z

Title: L’indagine diagnostica per il restauro: il caso del modello ligneo della Chiesa di S. Maria della Consolazione in Todi Authors: De Santis, Alberto; Lo Monaco, Angela; Mattei, Elisabetta; Pelosi, Claudia; Santancini, Marco Abstract: The wooden polychrome Model of the Church of S. Maria della Consolazione in Todi is an handmade article whose author and historical events are not completely known except a wide reference to the construction period of the church (1508-1607). During the restoration, carried out in the first half of the year 2007, some diagnostic analyses were performed in order to study and characterize the materials, the techniques and the conservation state of the model and so to provide a valid help to the restoration itself. The pigments, binders, restoration materials and the different wooden parts were examined. The samples were taken off during the disassembly of the model and they were analyzed by means of a polarizing microscope. The chemical analyses were carried out by means of micro-Raman spectrometer and by means of FTIR and micro-FTIR spectrophotometry. The cross, radial and tangential thin sections of the wooden samples were examined under an optical microscope.

2007-12-31T23:00:00Z Agresti, Giorgia Genco, Giorgia Giagnacovo, Cristina Pelosi, Claudia Lo Monaco, Angela Castorina, Roberta http://hdl.handle.net/2067/1736 2011-08-08T23:05:28Z 2009-12-31T23:00:00Z

Title: Wood of chestnut in cultural heritage Authors: Agresti, Giorgia; Genco, Giorgia; Giagnacovo, Cristina; Pelosi, Claudia; Lo Monaco, Angela; Castorina, Roberta Abstract: Chestnut wood was used as a structural material for important wooden building frames and artefacts of demo ethno anthropological interest. The wood of this species is found less frequently in artistic artefacts. So the aim of this work is to examine some artefacts of both artistic and above all devotional typologies. Conservation problems are addressed with examples, in relation to modern methods of operation. Description: L'articolo è disponibile sul sito dell'ditore http://www.actahort.org/books/866/

2009-12-31T23:00:00Z Agresti, Giorgia Castorina, Roberta Genco, Giorgia Giagnacovo, Cristina Lo Monaco, Angela Pelosi, Claudia http://hdl.handle.net/2067/1742 2011-07-20T12:48:27Z 2008-12-31T23:00:00Z

Title: Il legno di castagno nei beni culturali Authors: Agresti, Giorgia; Castorina, Roberta; Genco, Giorgia; Giagnacovo, Cristina; Lo Monaco, Angela; Pelosi, Claudia Abstract: Il legno di castagno è stato utilizzato prevalentemente come materiale strutturale per orditure lignee di importanti edifici e nei manufatti di interesse demoetnoantropologico. Meno consueto è riscontrare il legno di questa specie in manufatti artistici. Nel presente lavoro vengono presi in esame alcuni manufatti che per tipologia si possono considerare, oltre che di interesse storico-artistico, anche devozionale. I problemi conservativi che emergono dall’esame di queste opere vengono affrontati con esempi significativi, anche in relazione a moderni metodi di intervento. Description: Il Convegno si è svolto in concomitanza con il 1st European Congress on Chestnut e l'evento, nel suo complesso, è stato denominato Castanea 2009. Gli atti del 1st European Congress on Chestnut sono pubblicati su Acta Horticulturae dall'International Society for Horticultural Science (ISHS).

2008-12-31T23:00:00Z Balletti, Federica Lo Monaco, Angela Pelosi, Claudia http://hdl.handle.net/2067/1738 2011-06-03T17:06:52Z 2009-12-31T23:00:00Z

Title: Evaluation of a microclimate monitoring system applied to small size Museums Authors: Balletti, Federica; Lo Monaco, Angela; Pelosi, Claudia Abstract: The conservation of works of art exhibited inside museums is influenced considerably by the indoor microclimatic conditions. Temperature and air moisture content variations and lighting play an important role in the deterioration of works of art, both artefact of historical-artistic value and demoethnoanthropological goods. Small museums around the country are a source of pride for local people. They preserve and guarantee the transmission to future generations of important works of art or goods of cultural interest. In these contexts is not sustainable an environmental monitoring like that carried out in major museums, both for the high cost of equipment and management and for the lower influx of visitors. The aim of this work has been to verify the conservation conditions of a remarkable collection of votive wood paintings housed in the Museum of the Basilica of the Madonna della Quercia (Viterbo, Italy), using simple instruments and tools. Microclimatic environment characterization has been conducted from December 2008 to September 2009, surveying temperature and relative humidity. Lux and radiation measures have been performed. Moreover punctual microclimatic surveys of surface temperature of a wooden votive tablet, as well as measurements of environment temperature, relative humidity and dew point have been carried out. The results have been interpreted with reference to museum standards regarding the conservation of works of art, in order to verify compliance of the measured values with the optimal values of the parameters established by the legislation proposed by the Italian Ministry of Culture n. 238, 19-10-2001.

2009-12-31T23:00:00Z Lo Monaco, Angela Marabelli, Maurizio Pelosi, Claudia Salvo, Michele http://hdl.handle.net/2067/1751 2011-06-03T16:25:26Z 2009-12-31T23:00:00Z

Title: Preservation and usage: the Altar Machine in the Church Mother of Gangi (Palermo, Italy) and its microclimate. Authors: Lo Monaco, Angela; Marabelli, Maurizio; Pelosi, Claudia; Salvo, Michele Abstract: The aim of this work has been to study the correlation between delicate poli material artefacts, like painted wooden sculptures, and their microclimate. In particular the Altar Machine in the Church Mother of Gangi, a little town near Palermo (Italy), has been investigated. The Machine is constituted by carved and painted wood and a complex system of winch and pulleys allows to move various statues and parts of the Machine in accordance with the baroque scenographic machineries. The microclimate of the Machine has been investigated in order to verify if the thermoigrometric values fall within the tolerance intervals that, for wood and painted wooden sculptures, has been set between 19 and 24 °C (temperature) and between 45 and 60 % (relative humidity, RH%)[1]. Analyses for the identification of wood species and for the study of the painting materials have been also carried out. All images and data are at disposal on the web site www.dendrocronologia.org.

2009-12-31T23:00:00Z Lo Monaco, Angela Moretti, Nicola Picchio, Rodolfo Todaro, Luigi Quartulli, Stefano http://hdl.handle.net/2067/2007 2011-06-15T09:36:31Z 2007-12-31T23:00:00Z

Title: Caratteristiche tecnologiche del legno proveniente da una fustaia di pino e da un ceduo di roverella percorsi da incendio rispettivamente in località Calambrone (PI) e Umbertide (PG) Authors: Lo Monaco, Angela; Moretti, Nicola; Picchio, Rodolfo; Todaro, Luigi; Quartulli, Stefano Abstract: Obiettivo generale del presente programma di ricerca, svolto in stretta integrazione fra le unità coinvolte, è quello di indagare sulla qualità del legname proveniente da due boschi di pino marittimo e di roverella percorsi da incendio. Per le fustaie di pino marittimo l’indagine è stata rivolta principalmente alle caratteristiche del legno ritraibili dal popolamento dopo uno e due anni successivi al passaggio del fuoco. Per il ceduo di roverella è stata condotta un’indagine sulla caratterizzazione tecnologica del legname ritraibile dalle matricine e dai polloni nonché sulle diverse destinazioni d’uso ed idoneità dei materiali.

2007-12-31T23:00:00Z Lo Monaco, Angela Picchio, Rodolfo Sciascia, Nunziatina http://hdl.handle.net/2067/2010 2011-06-29T14:16:37Z 2009-12-31T23:00:00Z

Title: Xilological analysis: a contribution to the history of the "Gallerie" of Castel Gandolfo (Rome). Authors: Lo Monaco, Angela; Picchio, Rodolfo; Sciascia, Nunziatina Abstract: The ancient trees in parks, gardens and avenues are the historical evidences of an aesthetic choice of the trends and inspirations of the designers. They also represent a valuable source of information on events that occurred during their existence. Xylological analysis conducted on the trunk sections make it possible to determine the age of the trees, thereby estimation of the plantation period was possible with a sharp precision as well as to identify growth anomalies which could mark specific events, such as climatic, biological or antropic incidents, occurred over time. Even though, the trees could be dead, their stump could be found which is a valuable research tool despite the absence of written records. The aim of this study is to determine the age and origin of the Quercus ilex L. trees by analysing the annual rings identified on the sectioned disks. Four stumps of Quercus ilex L. were obtained from the “Gallerie” (avenues) leading to the Pope’s historical residence at Castel Gandolfo and were sectioned from the basal region. The annual rings from the sections reveal that all the trees are the same age and are placing their first years of life in the mid-nineteenth century. The characteristic features of the annual rings also reveal that the trees are of asexual origin. In conclusion, this study proves that xylological analysis is an interesting approach for accurate understanding of historical events in the urban systems and for reading evolutionary processes of the green component which undoubtedly have an "environmental" value as well as decorative, historical and artistic ones.

2009-12-31T23:00:00Z