1,721,233 research outputs found
Finite Strip Modeling for Optimal Design of Concrete Structures
No full textThe optimal limit state design of prestressed thin-walled folded plate structures under multiple loading conditions is presented. The design variables include (a) geometrical quantities, like the thickness and the dimensions of the structural members, (b) topological parameters, which define the location and the connectivity of such elements, and(c) the characteristics of the eventual prestressing system, described by the prestressing forces and the cables profile. Besides the physical and technological limits on such variables, the design constraints account for given limit states on both the stress and the displacement states which define the structural behavior. The objective of the design process is to find the structural layout which minimizes the structural volume and/or the total prestressing force according to the mentioned side and behavioral constraints. The solution of the corresponding non-linear optimization problem is achieved by using a numerical procedure based on the complex method. The structural analyses required during the optimization process are performed by using the finite strip method. Some applications to the optimal design of beams, vaults and box-girder bridges show the effectiveness of the proposed procedure
Margherita BERGAMINI (a cura di), La collezione numismática di Emilio Bond Casuccini.
No full textde Callataÿ François. Margherita BERGAMINI (a cura di), La collezione numismática di Emilio Bond Casuccini. . In: L'antiquité classique, Tome 74, 2005. pp. 479-480
Margherita BERGAMINI (a cura di), La collezione numismática di Emilio Bond Casuccini.
No full textde Callataÿ François. Margherita BERGAMINI (a cura di), La collezione numismática di Emilio Bond Casuccini. . In: L'antiquité classique, Tome 74, 2005. pp. 479-480
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
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