1,720,994 research outputs found
WALL BASE STRUCTURE FOR LIGHT BUILDINGS
No full textThe present invention relates to a base that is couplable to a building wall to connect said wall to a reinforced concrete foundation. The invention also relates to a building wall comprising said base and a building construction method comprising said wall. The present
invention is particularly, albeit not exclusively, suitable for application to the construction of buildings having a light structure, for example comprising wooden or steel or aluminium walls
In-plane strengthening of masonry buildings with timber panels
No full textThe in-plane strengthening of masonry walls plays a key role in the improvement of the global seismic behaviour
of masonry buildings. Various strengthening techniques are currently available, such as coatings, confinement or
injection and the use of cement-based materials or steel- or fibre-reinforced polymers or mortars. In this work, two
innovative strengthening techniques for existing masonry buildings were investigated: the use of glued or nailed
timber wall panels connected to the outer and/or inner face of the masonry wall. Their effectiveness in reducing
the seismic vulnerability of existing masonry walls was assessed in tests and numerical simulations. The test results
demonstrated improvements in strength, rocking displacement capacity and energy dissipation capacity. The
numerical analyses, conducted with non-linear models calibrated on experimental results available in the literature,
confirmed the advantages of these interventions, comparing the effects of using monolithic or coupled glued or
nailed wall panels, provided that particular attention is given to their connection to the existing structure
Long anchorage bond–slip formulation for modeling of r.c. elements and joints
No full textIn this paper a bond–slip relationship for long anchored bar has been proposed for modeling the structural behavior of r.c. elements and joints, able to take into account the interaction phenomena between ribbed bars and concrete also in condition of highly-stressed reinforcement. In such conditions some factors
play a key role in modifying maximum tangential stress which can be transferred, for example the variation of the section area of the bar due to the Poisson’s effect, as well as the modification of the geometry of the ribs due to yielding. The proposed formulation has been developed by considering mean parameters, in order to obtain a tool usable also with general-purpose finite element codes. A first series of validation tests have been carried out by means of FE simulations of experimental pull-out tests on long anchored bars. Then the proposed formulation has been applied to simulate the well-known experimental tests carried out by Leonhardt and Walter on beams and finally to reproduce the cyclic response
of a beam-column joint highly affected by the bond conditions of the longitudinal reinforcement
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
DISPOSITIVO PER L’ACCOPPIAMENTO DI PARETI E STRUTTURA COMPRENDENTE TALE DISPOSITIVO
No full textLa presente invenzione si riferisce al settore dell’edilizia, in particolare a sistemi di accoppiamento per pareti di edifici. La presente invenzione si riferisce in particolare a dispositivi a piastra metallica per ancoraggio o connessioni di pareti secondo il preambolo della rivendicazione 1 e a strutture comprendenti tali dispositivi
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
- …
