1,720,997 research outputs found
Campagna periurbana. Tra Napoli e Caserta
No full textIl volume raccoglie settantanove fotografie selezionate tra le circa duecento realizzate tra il 2019 ed il 2021 per una campagna fotografica che si è posta l’obiettivo di individuare i caratteri del periurbano tra Napoli e Caserta; da qui il titolo (campagna fa riferimento alla campagna fotografica, viaggio compiuto da un fotografo per ritrarre uno o più aspetti di una certa regione o area geografica).
«Il punto di vista (e di fuga) è prevalentemente frontale, - sostiene Pierangelo Cavanna nella sua introduzione - posto sempre a una certa distanza dal soggetto principale; di una descrittività quasi didascalica che rifiuta ogni effetto accattivante. Questa strategia della visione è forse necessaria a mostrare senza indicare o forse, semplicemente, suggerisce che il soggetto principale non esiste: non c’è qualcosa che valga più di altro, non c’è gerarchia che tenga e se mai qualcosa si presenta intenzionalmente come cattedrale, questa si colloca ancora e sempre, proverbialmente, in un deserto che la fagocita».
La serie di fotografie qui presentata prende in esame una sezione di territorio di 12x24 km tra il quartiere di Ponticelli ad Est di Napoli ed i confini della città di Caserta, compresa nella focus area più ampia indagata nel progetto fotografico complessivo
Non-linear analysis and dynamic monitoring methods for the safety assessment of bridges and viaducts
Full text linkL'abstract è presente nell'allegato / the abstract is in the attachmen
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
Effect of Environmental Parameters on Structural Health Status Assessment Using OMA Techniques
Full text linkThe data from a laboratory test on two aluminum rods are analyzed in this work. The rods are subjected to environmental excitation in an uncontrolled environment, attempting to replicate real operational conditions of structural health monitoring with external disturbances. Different damage levels are simulated on one of the two tension rods. Three of the most frequently used OMA methods are applied to evaluate the effects of the simulated damage on the dynamic behavior of the system. The complexity of the three applied OMA methods is gradually increased. The difference between the results from the different approaches is assessed. The aim of this work is to assess the performance of the proposed OMA methods, to understand their limits, and to assess the role of environmental disturbance parameters, such as temperature, in the evaluation of the health status of structures
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
Safety assessment of an existing bridge deck subject to different damage scenarios through the global safety format ECOV
Full text linkhe assessment of existing reinforced concrete structures, especially bridges and viaducts, nowadays is one of the most relevant aspects for engineers. In fact, due to the old age of a large part of the infrastructure assets and the deteriorating conditions affecting the structural elements, their safety with respect to the ultimate limit states may be compromised. In this perspective, the assessment by means of global safety formats employing non-linear finite element analyses can be an extremely useful tool. In this context, the study proposes to relate the safety level to the damage through 3D global non-linear numerical analyses. Specifically, the assessment of an existing prestressed reinforced concrete bridge deck is carried out by means of the global safety format denoted as "Estimation of Coefficient of Variation" (ECOV) assuming different damage scenarios. In fact, the safety of the structure is initially assessed with respect to the ultimate limit state in its undamaged condition. Subsequently, different damage scenarios, derived from the inspections, are numerically studied. For each damage scenario, the safety of the deck is evaluated with respect to the ultimate limit state relating the safety loss to the damage level. Finally, damage thresholds for this type of structure are defined on specific static parameters
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