1,720,958 research outputs found
PRELIMINARY RESULTS OF A SHAKING TABLE TESTS ON A 3-STOREY BUILDING REALIZED WITH CAST IN PLACE SANDWICH SQUAT CONCRETE WALLS
No full textStructural systems composed of cast in place sandwich squat concrete walls, which make use
of a lightweight material (for example polystyrene) as a support for the concrete, are widely
used for construction in non seismic areas or in areas of low seismicity, and appreciated for their
limited constructions costs, limited installation times, great constructions flexibility and high
energy and acoustic efficiency. If these cast-in-place squat concrete walls are assembled with
appropriate connections, a cellular/box behavior of the structural system is obtained which
leads to high strength resources (which allows not to use the post-elastic behavior and the ductility
resources) and high torsional stiffness. In recent years, from an exhaustive experimental
campaign it has been possible to obtain the structural performances of single panels composed
of cast-in-place sandwich squat concrete walls. A series of shaking table tests have been carried
out at the EUCENTRE in Pavia. The structural specimen which has been tested is a full-scale 3-
storey structural system composed of cast-in-place squat sandwich concrete walls characterized
by 5.50 × 4.10 meters in plan and 8.25meters in height. Shaking table tests have been developed
to validate the theoretically and partially-experimentally anticipated (through cyclic tests under
horizontal loads) good seismic behavior of cellular structures composed of cast in place squat
sandwich concrete walls
Shake Table Response of a Full-Scale 3-Storey Building Composed of Thin Reinforced Concrete Sandwich walls
No full textThis paper describes the results from a series of shacking table tests conducted on a fullscale reinforced concrete building. The specimen was a 3-storey structural system composed of squat cast-in-situ sandwich concrete walls with 5.50 m length, 4.10 m width and 8.25 m height. Shaking table tests were performed to validate the theoretical formulations which had been already developed by the authors in order to predict the seismic capacity of the tested structural systems. Both white noise and seismic tests were performed increasing the seismic intensity between 0.05 to 1.2 g. At the end of the experimental campaign, the building was essentially undamaged. From the white noise tests, a slight increase in the fundamental period was found, indicating some degradation. Although a meaningful interpretation of the test results in still under development, the structural system showed an impressive seismic capacity
Nuevo material de construcción
No full textUna parte importante de las construcciones existentes han sido construidas con materiales tradicionales y su estructura portante suele ser muros de carga. Estas estructuras tienen una importante capacidad resistente frente a cargas gravitatorias, si bien frente a acciones horizontales, como son los terremotos, su capacidad es muy limitada. El Grupo de Ensayo, Simulación y Modelización de Estructuras desarrolla su investigación en varias líneas alineadas en el incremento de la vida útil de estas construcciones. Nos lo cuenta su director, Salvador Ivorra Chorro
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
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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