1,720,957 research outputs found
DESIGN FOR ROBUSTNESS OF STEEL STRUCTURES WITH DISSIPATIVE FREEDAM JOINTS
No full textThe high seismic performance of steel frame structures equipped with FREEDAM dissipative joints has been demonstrated through experimental and extensive numerical studies in the framework of a recent RFCS project. In particular, the performance of moment-resisting frames (MRFs) and dual concentrically braced frames (D-CBFs) was thoroughly investigated under seismic actions. Although the research has shown that such structures can dissipate the earthquake-induced energy with limited or even no damage, their robustness in case of accidental actions was not yet addressed. Hence, as required by the current version of Eurocodes, their ability to survive accidental events should be demonstrated. This paper presents the robustness assessment performed on 20 MRFs and D-CBFs under a Eurocode-compliant column loss scenario. In addition, analytical and numerical studies were conducted to demonstrate how the request for robustness influences the design of the joints initially tailored for seismic performances
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
DESIGN FOR ROBUSTNESS OF A PILOT BUILDING EQUIPPED WITH DISSIPATIVE FREE FROM DAMAGE STEEL CONNECTIONS
No full textRecent research initiative aimed at reducing the structural damage and its inherent economic consequences in steel and steel-concrete composite structures after severe earthquakes led to the development of FREE from DAMage (FREEDAM) beam-to-column connections. The practical applicability and the benefits of using these connections for structures in seismic areas are currently demonstrated within an ongoing RFCS pilot project to be built on the campus of the University of Salerno. Amongst the different structural requirements, Euro-codes nowadays require providing the structures with an appropriate robustness when subjected to identified or unidentified accidental events by ensuring that the undergone damages are not disproportionate to the initiating cause. This paper presents the design for robustness of the pilot building. The results indicate that the loss of a column at the base floor induces the development of significant catenary action in the beams bridging over the lost column. The structural performance under the column loss scenario is primarily governed by the behaviour of beam-to-column joints subsequently identified as critical zones. The full-range behaviour of the FREEDAM joints was investigated through complex numerical simulations which allowed validating a simplified component-based spring model that can be adopted for the regular design of structures adopting this joint typology
DESIGN FOR ROBUSTNESS OF A PILOT BUILDING EQUIPPED WITH DISSIPATIVE FREE FROM DAMAGE STEEL CONNECTIONS
No full textRecent research initiative aimed at reducing the structural damage and its inherent economic consequences in steel and steel-concrete composite structures after severe earthquakes led to the development of FREE from DAMage (FREEDAM) beam-to-column connections. The practical applicability and the benefits of using these connections for structures in seismic areas are currently demonstrated within an ongoing RFCS pilot project to be built on the campus of the University of Salerno. Amongst the different structural requirements, Euro-codes nowadays require providing the structures with an appropriate robustness when subjected to identified or unidentified accidental events by ensuring that the undergone damages are not disproportionate to the initiating cause. This paper presents the design for robustness of the pilot building. The results indicate that the loss of a column at the base floor induces the development of significant catenary action in the beams bridging over the lost column. The structural performance under the column loss scenario is primarily governed by the behaviour of beam-to-column joints subsequently identified as critical zones. The full-range behaviour of the FREEDAM joints was investigated through complex numerical simulations which allowed validating a simplified component-based spring model that can be adopted for the regular design of structures adopting this joint typology
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
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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