1,721,008 research outputs found

    Reciprocal Implications Between Design and Construction Process of Timber Gridshell: Innovative Techniques of Representation in Architectural Design

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    This contribution focuses on the latest acquisitions of the Gridshell.it research group on active-bent timber gridshells. In particular, the main topic is related to the development of a new information technology design tool (GFFT 2.0) developed by Davide Rando for his Master's thesis in Architecture in January 2018 under the supervision of Sergio Pone and Daniele Lancia; this tool is a new version of the previous one developed in 2012 by Daniele Lancia and Andrea Fiore for their Master's Degree thesis called GFFT (Gridshell Form Finding Tool) (Pone et al., 2013). We will also describe the ultimate two projects to which we have committed ourselves from 2016 up to today as well as how the creation of the new IT tool was based on previous experiences influencing subsequent skills

    Digital Tool for Reciprocal Frame

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    This study proposes a digital tool able to determinate, using a surface’s free form data, a CRFS (complex reciprocal frame structures) made of the aggregation of SRFU (single reciprocal frame units) on a squared grid without changing eccentricity, position and dimensions of the rods and changing only the length. This choice allows to design new structures from synclastic surfaces, even if very complex, but equipped with a fundamental technical feature of being made with equal rods that generate different SRFUs. Using different algorithms already known, the new tool creates spherical cap surface CRFS that approximate to wanted surface. The original contribution of this work in based on this last step which uses dynamic relaxation and brings the spherical CRFS to ease down on the desired non-spherical geometry, without losing the reciprocity’s bonds between the rods

    Computational morphogenesis and digital simulation of the building process of masonry domes built without centrings

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    The study investigates the design and construction processes of masonry domes built without the use of centrings. In particular, it focuses on those built using a ‘compass’, i.e. an erection device that simplifies the construction process, and guarantees the bricklaying accuracy. The foundation of this research project can be found in the work of Fabrizio Carola (1931-2019) who used an erection method for masonry domes inspired by the ‘Nubian vault technique’. The design and construction processes used by Carola have been analyzed with the aim of identifying a sequence of operations, which were then simulated in a digital environment by means of recursive algorithms. Finally, the study moved to the implementation of two bespoke designed contraptions for the design of non-spherical domes. The result of this study is a computational tool which can be used to design different typologies of centring-less masonry domes and simulate their construction process

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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
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