1,721,263 research outputs found
La famiglia Torres di Malaga e il palazzo di piazza Navona
No full textIl palazzo della famiglia Torres, oggi noto come Torres-Lancellotti, venne edificato a cavallo tra la prima e la seconda metà del XVI secolo sul versante meridionale di piazza Navona e a partire dalla metà del XVII secolo gli fu attribuita l’etichetta, controversa, di opera di Pirro Ligorio. Nonostante il suo ruolo di assoluta rilevanza nel definire il volto moderno dell’antica area di pertinenza dello Stadio di Domiziano e nonostante rappresenti uno dei rari esempi di architettura cinquecentesca sopravvissuti lungo il perimetro della piazza, il palazzo è stato quasi del tutto ignorato dalla storiografia contemporanea. Pertanto, la presente ricerca dottorale è il primo studio monografico dedicato alla residenza romana della famiglia Torres.
Eretto per volere dell’arcivescovo di Salerno Ludovico de Torres (1495-1553), in una posizione strategica accanto all’"isola spagnola" della chiesa di San Giacomo su piazza Navona e a pochi passi dalla Cancelleria e dalla residenza in costruzione dei Farnese, il palazzo fu progettato in piena sinergia con i piani di rinnovamento urbano promossi da Paolo III nello spazio tra piazza Farnese e piazza Sant’Apollinare. Lo studio, attraverso l’analisi di documenti d’archivio editi e inediti e di due disegni cinquecenteschi, mai precedentemente messi in relazione con la storia progettuale del palazzo, riesce non solo a ricostruire per la prima volta le fasi di sviluppo del cantiere nell’arco di due decenni, ma anche a individuare i nomi di molte delle maestranze coinvolte nella progettazione e costruzione dell’edificio. Si tratta di architetti, muratori, scalpellini, scultori e consulenti, i cui profili biografici consentono di approfondire la natura dei legami dei Torres con la corte dei Farnese e aprire a nuove ipotesi sul coinvolgimento della famiglia nelle attività delle accademie romane nate in età paolina. Grazie ai dati raccolti, lo studio torna a riflettere non solo sull’attribuzione del palazzo a Pirro Ligorio, ma anche sulla meno fortunata assegnazione a Jacopo Barozzi da Vignola, esaminando l’attendibilità di entrambe e valutando le possibili alternative, soprattutto tenendo conto del fatto che il palazzo non si può considerare come l’opera di un unico progettista, ma piuttosto il risultato dell’interazione di diverse maestranze capaci di intercettare e ripensare i modelli offerti dai principali cantieri romani della prima metà del XVI secolo
Vis/NIR hyperspectral imaging technology in predicting the quality properties of three fruit cultivars during production and storage
No full textHyperspectral imaging technology has its origins in the mid-1980s: from hyperspectral cameras developed for remote sensing by aerial vehicles or satellites, the technology has moved to proximal sensing applications on a lab-scale under controlled conditions. In the agri-food sector, hyperspectral imaging technology emerged in the non-destructive measurement of food quality parameters. In recent years, due to the miniaturization of hyperspectral cameras and the increase in computational and data storage capabilities, there is growing interest towards the in-field application of proximal remote sensing hyperspectral cameras mounted on airborne or unmanned aerial vehicles or ground vehicles. As example of the application of the hyperspectral imaging in the agri-food sector, quality attributes (soluble solids content, flesh firmness) of apricots, kiwifruits and grape were monitored by means of a hyperspectral camera, in order to observe their evolution during storage and directly in field
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
Investigation on the failure behaviour of adhesively bonded composite joints by using the Arcan test
No full textThe aim of this work is to study the behaviour of two different adhesives, used in the automotive industries, by means of U-shaped substrates made of carbon fibres. Such a geometry is taken from a configuration widely used for testing spot-welded joint specimens. These adhesive joints were loaded until failure by means of the Arcan device, that allows testing the adhesive under different loading conditions. In particular, three loading angles were considered, namely 0° (pure shear loading), 45° (combined shear-tensile loading), and 90° (pure tensile loading). This is very important in the automotive industry since the adhesive joints are mainly designed to support shear loads while in real service conditions, such as impacts, they can be subjected to combined loads. Two adhesives were used to bond two sets of substrates (2 layers and 4 layers) with different thicknesses to show the correlation between the adhesive behaviour and the stiffness of the substrates. The adhesives were a 2-component polyurethane, exhibiting ductile behaviour, and a 2-component methacrylate, brittle if compared to the polyurethane. The substrates were prepared in the lab by using prepregs made of carbon fibres layers cured in an oven under vacuum, and then joined. To analyse the mechanical response of the joints, a Finite Element Model was developed using LS-Dyna. It was validated through iterative procedures comparing the numerical results with the experimental ones to obtain suitable information such as peel and shear stress distribution in the joints. The aim of the work is to assess whether and how the adhesive type and the stiffness of the substrates influence the mechanical properties of this type of adhesive joints and define a failure envelope in a stress space based on the tested mixed-stress conditions
In-field hyperspectral imaging: An overview on the ground-based applications in agriculture
Full text linkThe measurement of vegetation indexes that characterise the plants growth, assessing the fruit ripeness or detecting the presen-ce of defects and diseases, is a key factor to gain high quality of fruit or vegetables. Such evaluation can be carried out using both destructive and non destructive techniques. Among non-destructi-ve techniques, hyperspectral imaging (HSI), combining image analysis and visible/near-infrared spectroscopy, looks particularly useful. Many studies have been published concerning the use of hyperspectral cameras in the agronomic and food field, especially in controlled laboratory conditions. Conversely, few studies described the application of HSI technology directly in field, especially involving ground-based systems. Results suggest that this technique could be particularly useful, even if the role of environmental variables has to be considered (e.g., intensity and incidence of solar radiation, wind or the soil in the background). In this paper, recent in-field HSI applications based on ground systems are reviewed
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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