1,721,042 research outputs found
Franosità e caratterizzazione geomeccanica delle fa¬cies litoidi delle Formazioni di Solchiaro e Terra Murata (Isola di Procida).
No full textSono state analizzate le caratteristiche geomeccaniche e le condizioni di stabilità delle facies litoidi (tufi S.I.)
delle Formazioni di Solchiaro e di Terra Murata, affioranti lungo la costa orientale dell'Isola di Procida. La
caratterizzazione geomeccanica e stata effettuata tramite prove in situ (prove sclerometriche) ed in laboratorio
(prova di Compressione Uniassiale e Point Load Test); e stato così possibile confrontare i risultati ottenuti con
diverse metodologie. Lo studio della stabilità dei versanti, effettuato applicando il metodo proposto da Amadesi
et alii (1977), ha consentito di individuare, nell'ambito dei terreni in esame, zone a diverso grado di stabilità
Acoustic properties of materials: A comparison of numerical and experimental methods
Full text linkAcoustic simulations provide today a valid tool to simulate complex environments and complex interaction between acoustic and structure. Multiple methods are nowadays available with different degrees of accuracy and different applications. Simulation methods cover a wide frequency range with FE methods dominating the low frequency range. SEA mostly covers high frequency range with BEM covering an intermediate frequency range. Ray-tracing can work on the entire frequency range and is used when a large domain must be simulated. These methods require acoustic properties of materials to be implemented such as acoustic impedance or absorption and STL. The aim of this paper is to show different methods to provide these properties and discuss about the equivalence/difference of the numerical and experimental approaches under specific assumptions
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
Sound Barrier
No full textPubblicazione multimediale, DVD Video, in Vison'r Sonic, Explosive TV, vol. 7, consultabile su: http://explosivetv.blogspot.com/search/label/VisionSonic%20
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