1,720,969 research outputs found
Finite Element Model Updating by Using “Output-Only” Experimental Data
No full textIn order to validate analytical models, a comparison among the results from experimental modal analysis and the analytical prediction is performed. Indeed, the practical applications of highly detailed analytical models often reveal considerable discrepancies between analytical and test results. In recent times some effort has been spent in the development of numerical procedures for updating analytical, i. e., Finite Element, spatial model using dynamic test data. Moreover, the "output-only" modal testing and analysis revive the experimental techniques for the estimate of the modal parameters due to the ease of the testing, and due to opportunity to measure the response of the structure under the actual loading and operating conditions. In this paper, the updating of a simple structure has been performed using frequency response functions achieved by "output-only" modal analysis and the results have been compared with those obtained using the frequency response functions experimentally measured via "input/output" experimental modal analysis
"Se non oltre un confine (oltre un solo confine), per tutto un mondo - la Russia". M. Cvetaeva: quando l'Altro ha una voce di donna.
No full textL'intervento si delinea come riflessione sull'opera di M. Cvetaeva al fine di rinvenire in essa testi e pretesti per alcune riflessioni sullo statuto della poesia femminile in Russia, e sullo statuto della poesia femminile tout court. La sua scrittura infatti, luogo eletto del "confine", porta marche esplicite di una scrittura "di donna" in quanto possibile scrittura di genere: o meglio – ed è la nostra tesi – in quanto scrittura di genere presunta. In tutta la poesia della Cvetaeva ci sono esplicite marche di diversità, e marche della consapevolezza di questa diversità: ma in tutto questo, e' soprattutto la consapevolezza dell'irrilevanza di ogni contrapposizione rigida e oppositiva. Nel suo universo che mostra la non-finitezza e non-finibilità di ogni evento estetico, si perde l’idea di "scrittura femminile" come scrittura di genere, di ruolo, e si guadagna l'idea di una scrittura poetica tout court.
La domanda che si rinnova, in questa prospettiva, è se veramente esista un vantaggio nell'adottare un approccio antropologico all'arte. E la risposta forse si potrebbe rinvenire anche in una rilettura lucida della storia del movimento femminile in Russia. Una storia che anche quando ha cercato di recuperare la nozione stessa di genere in senso culturologico, avrebbe potuto in sé demolire l'idea stessa di Gender Studies: quale sviluppata in ambito anglo-americano, o quale costituitasi all'interno di un paradigma francese di analisi testuale intorno a una presunta "identità femminile di scrittura", nella sua differenziazione tra sesso sociale e sesso biologico, nel suo accanirsi sulle idee di "letteratura femminile" e di "questione femminile". Perché se anche esiste una linea forte della poesia femminile in Russia, essa non è in un guardarsi, riflettersi, che sia trovare e marcare la differenza col mondo maschile nel senso di una sofferenza e di uno sdoppiamento. E' piuttosto un modo di riconoscere l'altro necessario alla costituzione del sé. E' un modo superiore di essere anche l'altro. Così è in Cvetaeva, nella sua femminilità eretica e ribelle, nel suo lavorare “sempre al limite della voce”, nella sua scrittura capace di stare nella contraddizione.
L'intervento analizza la parte della produzione di Cvetaeva piu' direttamente collegata a un'ipotetica scrittura di genere, insistendo su momenti interpretativi che travalichino ogni riduzionismo e recuperino l'intera portata del pensiero della scrittrice.
Sulla base di un'analisi linguistica, semiotica e traduttologica di alcuni versi di Cvetaeva, si intende recuperare in tutta la sua interezza e molteplicità lo spazio della scrittura come azione responsabile di costituzione del proprio soggetto, come riconoscimento etico dell'Altro nell'atto estetico di costituzione del sè
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
Output-Only Analysis for Modal Parameters Estimation of an Elastically Scaled Ship
No full textThe study of the ship structural response assumes an increasing importance as soon as the structures, characterized by much more lightness, are designed and built for faster vessels. This requisite implies a greater flexibility of the structures themselves, the elastic response of which has to be evaluated with accuracy in order to predict the dynamic behavior. In the present paper, a methodology for the identification of the modal parameters from the measurement of only the responses of a vibrating structure has been developed and applied to an elastically scaled model. This output-only technique is successfully applied to the segmented model of a real ship towed in the INSEAN linear basin. The broadband random excitation, provided by the loads exerted by an irregular sea pattern, induces a stochastic response of the model, which is monitored with accelerometers. The obtained results not only outline the parametric dependence of the modal properties on the ship speed, but also suggest a possible practical application of this technique for on-board structural monitoring and fatigue-life prediction
When Emphysema Meets Fibrosis: A Pictorial Essay
No full textMany lung diseases, first, tumors, are smoking-related, and it is very likely to find more than one pattern in the same patient. Airspace enlargement with fibrosis (AEF) is one of them, but it has not been deeply understood or studied yet. In fact, we think that it might still be wrongly assimilated with other conditions that have different radiological features altogether and different prognoses. This pictorial essay is aimed at pointing out AEF so that radiologists and pulmonologists get acquainted with it and use the proper terminology, as AEF might not be that rare
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
- …
