1,720,962 research outputs found
Seismic Behavior of Base Isolated Civil Protection Operative Center in Foligno, Italy
No full textThe analysis of the actual seismic behavior of the Operative Building of the Civil Protection Centre in Foligno, Italy, which is seismically isolated by means of high damping rubber bearings (HDRBs), is shown. An accelerometer network was installed on the structure. It recorded all the events of the seismic sequence that hit central Italy from August 2016 to January 2017. All the events had epicenters far from the building, so the effects at the site were quite low and the resonance frequencies measured were higher than the frequencies assumed in the design phase. The seismic filtering was effective. The strongest earthquake occurred on October 30, 2016, Mw=6.5, with epicenter at Norcia, was studied in detail. A nonlinear law for the rubber shear modulus was deduced, which fits quite well with experimental data and was used for a nonlinear dynamic analysis of the entire building. The model was first tested analyzing the effects of the acceleration time-histories recorded during the mentioned event at the building basement. The responses obtained numerically at the sensor locations were compared with those recorded at the same locations during the quake. Then the model was used to analyze the structural response to a strong earthquak
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
RETROFIT OF EXISTING BUILDINGS WITH SEISMIC ISOLATION: DESIGN ISSUES AND APPLICATIONS
No full textThe application of seismic isolation for new buildings is quite easy and almost always possible. It is also economically convenient, at least in medium and high seismicity areas both for reinforced concrete buildings and masonry buildings. Actually, the real challenge of seismic isolation is protection of existing buildings, especially in countries where maintenance of old structures is an important issue. It is worth reminding that, when using base isolation, the period of vibration can be chosen so as to allow input of low spectral amplitude, while the superstructure remains substantially in the elastic range. This possibility also allows for limiting or even avoiding the conventional retrofit intervention in the superstructure. In this paper the design issues for the application of base isolation in the retrofit of existing buildings are first discussed for the two cases of reinforced concrete and masonry buildings. These refer to the positioning of the isolation devices in plan and elevation and the transferring of the vertical actions during the building phases. Then the most relevant applications in Italy for existing reinforced concrete and masonry buildings are also shown. Finally, an isolation system is presented, which was set up for cultural heritage structures but is very suitable also for industrial plants
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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