1,720,993 research outputs found
L'attività del laboratorio di Archeoingegneria CAILAB
No full textLa proposta di restauro del Castello di Cusercoli è rivolta alla necessità di non perdere l'insieme di valori che il manufatto rappresenta e che costituisce “testimonianza materiale avente valore di civiltà”. Dalla sua posizione privilegiata sullo sperone roccioso che restringe la vallata bidentina - la “Chiusa d’Ercole” - il castello medievale dei Malatesti, poi ampliato e trasformato nel settecentesco palazzo baronale dai conti Guidi di Bagno, annuncia ancora oggi al visitatore proveniente da Forlì l’ingresso nel piccolo paese di Cusercoli. Nonostante l’incuria e i catastrofici eventi cui è stato soggetto il castello, la sua imponente volumetria ha contribuito a tenere viva la sua presenza sul territorio; oggi, però, le critiche condizioni di degrado, anche strutturale, non permettono di operarne una corretta lettura. Occorre pertanto ricucire il legame castello-paese-territorio, riaffermando il complesso monumentale come perno nella vallata sia visivamente che funzionalmente, riassegnandogli un ruolo che, per secoli, ha posseduto. Dall'individuazione delle condizioni di criticità discende la reale necessità dell’intervento, operazione che ha lo scopo di valorizzare il monumento e che si esplicita attraverso la sua rifunzionalizzazione la quale si configura come strumento indispensabile a tenere in vita il complesso. A questo scopo la fase di analisi costituisce un momento necessario al raggiungimento della conoscenza globale del monumento, condizione indispensabile per poter formulare un intervento coerente e rispettoso della natura, della storia e del valore del monumento stesso. Nel rispetto degli strumenti urbanistici vigenti e in accordo con la Soprintendenza per i Beni Architettonici e Paesaggistici per le province di Ravenna, Ferrara, Forlì-Cesena e Rimini, il progetto si sviluppa di concerto con la committenza, l’Amministrazione del Comune di Civitella di Romagna (FC), e si costruisce sul dialogo e interazione fra e con gli altri “attori” coinvolti: la II Facoltà di Ingegneria di Forlì, che ha trovato la sede per il proprio Laboratorio di Archeoingegneria a Cusercoli, e l’Università degli Studi di Roma “La Sapienza”, che già da due anni organizza con successo, proprio nel castello, attività di cantiere-scuola per gli studenti di Architettura e per gli specializzandi in Restauro dei Monumenti; entrambi intendono proseguire le convenzioni avviate con l’Amministrazione Comunale e “ritagliarsi” uno spazio nella previsione della fruizione del castello. Il Castello di Cusercoli costituisce, inoltre, un raro caso di compresenza di tecniche costruttive di differenti periodi, la cui anatomia risulta di facile lettura per lo stato di conservazione in cui il manufatto verte oggi. Proprio in virtù di questa caratteristica, il monumento si qualifica per lo sviluppo della funzione museale, in relazione a quanto il complesso ha da raccontare, come caso esemplificativo dell’architettura della tradizione territoriale; questo tipo di fruizione può essere integrato e potenziato proprio con la presenza dell’Università, sfruttando i rapporti già instaurati ed offrendo così agli studenti l’occasione di apprendere esercitandosi in prima persona sul campo, contribuendo attivamente al progetto del Museo dell’Anatomia dell’Architettura
Investigation on the interaction between the outdoor environment and the indoor microclimate of a historical library
No full textIn recent years, the study of the indoor microclimate has assumed increasing importance, both in relation to the health of people living in confined environments for a considerable part of their time, both for the problems associated with the conservation of works of art and cultural heritage housed in museums, galleries and libraries. In this paper, we present the results of a measurement campaign carried out in two periods of the year, which can be considered "extreme" from the meteo-climatic point of view, in the Classense Library located in the city of Ravenna (Italy). This is a famous Italian historical library that houses many books of great value. The campaigns took place one in the summer period (from July 22nd to August 6th 2014) and another one in winter (from 15th December to 30th December 2014). During these measurements campaigns, we have characterized different and heterogeneous indoor environments. The internal pollutants concentrations and thermo-hygrometric data have been compared with the external ones, obtained from nearby measuring points. In this way, we have been able to determine the Indoor/Outdoor ratio (I/O ratio) of the pollutants concentrations. From these data and from the estimated air exchange rate, the pollutants deposition velocities have been calculated, too. The building has no air conditioning systems and our experimental data show that it is characterized by a relatively low rate of air exchange and a high thermal inertia. We have also compared the analysed microclimatic data with the specific values recommended by different norms and standards, in order to verify the conditions of preservation of the precious texts. Finally, we have applied a mathematical model to study the indoor pollutants concentrations, in order to confirm that the correlations between the outdoor and the indoor pollutants levels can be explained in terms of the building characteristics. The results of the model application fit well the experimental data and the consequent theoretical estimates made in this work; in fact, they are consistent with very low values of air exchange ratio of the building. These results can be used to define a specific "Performance Index" (PI) of the building, expressed as the percentage of time in which the microclimatic parameters of the library (i.e. the thermo-hygrometric values) do not match the recommended values. Furthermore, they can also provide a first step, based on experimental data, for the development, in close collaboration with the conservation scientists, of a methodology for risk assessment, specifically to be used for cultural heritage housed in museums, galleries and archives
RILIEVI TRIDIMENSIONALI E INDAGINI COLORIMETRICHE PER IL RESTAURO E LA CONSERVAZIONE: IL CANTIERE DEL COLOSSEO
No full textNell'articolo vengono illustrati i risultati della campagna di studi riguardanti l'acquisizione e restituzione di dati 3D e colorimetricil tramite laser scanner di elementi architettonici e parti di fabbrica del Colosseo
RILIEVI TRIDIMENSIONALI E INDAGINI COLORIMETRICHE PER IL RESTAURO E LA CONSERVAZIONE: IL CANTIERE DEL COLOSSEO.
No full textNell'articolo vengono illustrati i risultati della campagna di studi riguardanti l'acquisizione e restituzione di dati 3D e colorimetricil tramite laser scanner di elementi architettonici e parti di fabbrica del Colosseo
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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