1,720,962 research outputs found
Modelling Spectral Response and Reflectivity Effects: Comparison with Outdoor Measurements on PV Modules,
No full textABSTRACT: Nominal performances measured at STC can’t give exhaustive informations about the outdoor real operating behaviour
of PV modules due to continuous departures of instantaneous values of the influencing parameters from the reference ones. Also
behavioural features of the panels are responsible for a remarkable decrease of the on-field performances when compared with the
STC ones. This paper presents a simulation model able to predict, to describe and to justify the outdoor behaviour of PV modules
through the use of equations based on few input data. The first results agree satisfactorily with experimental on-field measurements
over one entire year
La valutazione di affidabilità dei sistemi di sicurezza per prevenire il rischio di infragilimento in impianti con gas criogenici
No full textDalla sicurezza del componente alla sicurezza dell'impianto: il nuovo approccio della direttiva PED. Il caso di un generatore di vapore a recupero
No full textDalla sicurezza del componente alla sicurezza dell'impianto: il nuovo approccio della direttiva PED. Il caso di un generatore di vapore a recupero
No full textLa conduzione dei generatori di vapore a tubi di fumo a funzionamento automatico in condizioni di sicurezza: norme nazionali europee a confronto con le Norme Armonizzate in applicazione della Direttiva P.E.D
No full textValutazione PED di un insieme articolato: l’“ISOTHERM PWR” (Recuperatore energetico da rifiuti speciali e tossico nocivi)
No full text
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
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