1,720,959 research outputs found
Curve empiriche di vulnerabilità per gli edifici prefabbricati colpiti dai terremoti emiliani del 2012
No full textLa sequenza sismica emiliana del 2012 ha investito un’area fortemente industrializzata comprendente
alcune migliaia di edifici prefabbricati in c.a. A causa della mancanza di una specifica progettazione
nei confronti delle azioni simiche, molti di tali edifici hanno riportato gravi danni. Lo studio riguarda
un inventario preliminare dei danni riportati da 1133 edifici. L’entità dei danni è stata messa in
relazione con la distanza epicentrale e la Pseudo-Accelerazione Spettrale (PSA) corrispondente al periodo
di 1 s. In particolare, il 90% degli edifici gravemente danneggiati presenta distanza epicentrale inferiore a
14 km e ha risentito di una PSA maggiore di 0.13g. È poi significativo osservare come per il 10% degli
edifici senza danni la distanza epicentrale risulti inferiore a 9 km e la massima PSA risentita sia superiore
a 0.21g
Vulnerability curves for precast RC industrial buildings stricken by the 2012 Emilia (Italy) earthquakes
No full textThe 2012 Emilia (Italy) earthquakes struck a highly industrialized area including several thousands of industrial prefabricated buildings. Due to the lack of specific design and detailing for earthquake resistance, precast reinforced concrete buildings suffered from severe damages and even partial or total collapses in many cases. The present study reports a preliminary data inventory of damages from field survey on prefabricated buildings. The damage database, even though still incomplete, concerns more than 1100 buildings. Making use of available shakemaps of the mainshocks, the damages were related with the epicentral distance, and empirical vulnerability curves were developed. It was found that about 90% of severely damaged to collapsed buildings stay within 14 km from the epicentre and experienced a Pseudo-Spectral Acceleration for a period of 1 second (PSA at 1 s) larger than 0.13g. Moreover, 90% of slightly to moderately damaged buildings are located at less than 23 km from the epicentre and were affected by a PSA at 1 s larger than 0.07g. Finally, 10% of the undamaged buildings stay within 9 km from the epicentre and suffered from a PSA at 1 s not lower than 0.21g
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Prove sperimentali di push-out su travi reticolari miste
No full textNel presente lavoro sono descritte le prove di push-out realizzate sino ad oggi in tre diverse sedi Universitarie (Università del Salento, Università di Palermo, Università di Ferrara), operanti nel Gruppo di Ricerca finalizzato allo studio delle travi Prefabbricate Reticolari Miste, in collaborazione con le aziende di ASSOPREM. Dette prove hanno l’obiettivo di analizzare il comportamento all’interfaccia fra gli elementi resistenti nelle travi suddette, realizzate con traliccio prefabbricato e getto in opera di calcestruzzo. L’indagine condotta, sebbene ancora insufficiente a condurre a risultati di validità generale, evidenzia come al variare di alcuni parametri significativi si rilevi un comportamento differente in termini di carico ultimo, modalità di rottura e duttilità della connessione
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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