1,721,301 research outputs found
Anna Sacconi, Corpus delle iscrizioni vascolari in lineare Β con prefazione di G. Pugliese- Carratelli. (Incunabula Graeca, LVII), 1974
No full textPerpillou Jean-Louis. Anna Sacconi, Corpus delle iscrizioni vascolari in lineare Β con prefazione di G. Pugliese- Carratelli. (Incunabula Graeca, LVII), 1974. In: Revue des Études Anciennes. Tome 77, 1975, n°1-4. p. 260
Anna Sacconi, Corpus delle iscrizioni vascolari in lineare Β con prefazione di G. Pugliese- Carratelli. (Incunabula Graeca, LVII), 1974
No full textPerpillou Jean-Louis. Anna Sacconi, Corpus delle iscrizioni vascolari in lineare Β con prefazione di G. Pugliese- Carratelli. (Incunabula Graeca, LVII), 1974. In: Revue des Études Anciennes. Tome 77, 1975, n°1-4. p. 260
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
Investigation on load dependent roughness variations
No full textIn order to investigate the level of influence of the roughness in the evaluation of the dimensionless film thickness , a study has been started to find a simplified but sufficiently general method to take into account the roughness variations of bodies, even with different characteristics, due to varying load. The investigation is based on a linear measured roughness profile.
In this work, a model developed for the approximation of measured profiles through parabolas as well as the formulas used for solving the contact mechanics problem are reported. The first results obtained with some specimens, used in previous works for experimental investigations on non-conformal line contacts, are presented. The specimens’ surfaces are analysed both by a 3D computer controlled stylus profilometer and by an apparatus that allows investigations also under loaded conditions using optical interferometry. A way to compare the experimental and the theoretical results, in order to make some necessary verifications correlating line and surface aspects, is indicated. A first estimation of the variation of under load is finally made.
The method developed for the evaluation of roughness variations under load seems to furnish reasonable results in quite good agreement with the experimental ones. The results obtained with the investigated non-conformal line contacts, presenting characteristics in not complete agreement with the model-based hypotheses, give a certain confidence about the applicability of this simplified methodology to different kinds of contacts
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
Preliminary safety evaluation of an aircraft impact on a near-surface RWs repository
No full textThe aircraft impact accident has become very
significant in the design of a nuclear facilities,
particularly, after the tragic September 2001 event, that
raised the public concern about the potential damaging
effects that the impact of a large civilian airplane could
bring in safety relevant structures.
The aim of this study is therefore to preliminary
evaluate the global response and the structural effects
induced by the impact of a military or commercial
airplane (actually considered as a “beyond design
basis” event) into a near surface radioactive waste
(RWs) disposal facility.
The safety evaluation was carried out according to the
International safety and design guidelines and in
agreement with the stress tests requirements for the
security track.
To achieve the purpose, a lay out and scheme of a
possible near surface repository, like for example that
of the El Cabril one, was taken into account.
In order to preliminary perform a reliable analysis of
such a large-scale structure and to determine the
structural effects induced by such a types of impulsive
loads, a realistic, but still operable, numerical models
with suitable materials characteristics were
implemented by means FEM codes. In the carried out
structural analyses, the RWs repository was considered
a “robust” target, due to its thicker walls and main
constitutive materials (steel and reinforced concrete).
In addition to adequately represent the dynamic
response of repository under crashing, relevant
physical phenomena (i.e. penetration, spalling, etc.)
were simulated and analysed.
The preliminary assessment of the effects induced by
the dynamic/impulsive loads allowed generally to
verify the residual RWs strength capability of the
repository considered.
The obtained preliminary results highlighted a
remarkable potential to withstand the impact of
military/large commercial aircrafts, even in presence of
ongoing concrete progressive failure (some penetration
and spalling of the concrete wall) of the impacted area
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