1,720,966 research outputs found
“Experimental and numerical investigation of “Blockhaus” shear walls under in-plane cyclic loads.”
No full textBlockhaus systems represent a traditional construction technology where structural resistance is obtained by direct contact between multiple timber surfaces obtained via carvings, notches, and ancient joints. Native of forested areas, this technology is currently used for the construction of log buildings also in earthquake-prone areas. Their
seismic structural behaviour hence represents an interesting and not well-known research topic. In the paper, experimental results obtained by cyclic and monotonic tests recently performed on three different typologies of Blockhaus shear walls are presented and discussed. At the same time, sophisticated finite-element numerical models able to take into account the complex structural behaviour of log-walls subjected to in-plane seismic forces are described. Performed numerical simulations highlighted that in general multiple factors affect the global structural response of Blockhaus shear walls, including the presence of imperfections (small gaps) in the used timber joints, the contribution of friction phenomena, the mechanical properties of timber and the interaction between in-plane seismic forces and vertical permanent loads
“Experimental and numerical investigation of “Blockhaus” shear walls under in-plane cyclic loads.”
No full textBlockhaus systems represent a traditional construction technology where structural resistance is obtained by direct contact between multiple timber surfaces obtained via carvings, notches, and ancient joints. Native of forested areas, this technology is currently used for the construction of log buildings also in earthquake-prone areas. Their
seismic structural behaviour hence represents an interesting and not well-known research topic. In the paper, experimental results obtained by cyclic and monotonic tests recently performed on three different typologies of Blockhaus shear walls are presented and discussed. At the same time, sophisticated finite-element numerical models able to take into account the complex structural behaviour of log-walls subjected to in-plane seismic forces are described. Performed numerical simulations highlighted that in general multiple factors affect the global structural response of Blockhaus shear walls, including the presence of imperfections (small gaps) in the used timber joints, the contribution of friction phenomena, the mechanical properties of timber and the interaction between in-plane seismic forces and vertical permanent loads
ORAL PRES. Identification of peaks from HPLC fingerprints responsible for the antioxidant activity of Mallotus species
No full textinfo:eu-repo/semantics/nonPublishe
ORAL PRES. Alternative methods for multi-objective optimization of Radial Basis Function - Support Vector Machines for Classification
No full textinfo:eu-repo/semantics/nonPublishe
Reliability analysis of shells based on direct plasticity methods
No full textAbstracts der CD-Rom Proceedings of the 8th World Congress on Computational Mechanics (WCCM8) and 5th Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2008) 30.06. - 04.07.2008 Venedig, Italien. 2 Seiten Zusammenfassung der Autoren mit graph. Darst. und LiteraturverzeichnisAbstracts of the Proceedings of the 8th World Congress on Computational Mechanics (WCCM8) and 5th Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2008) June 30th - July, 4th 2008, Venice, Italy. 2 pages with abstracts of the authors, Ill. and references
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
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