1,721,099 research outputs found
A NEW PROPOSAL FOR A PASSENGERS FAST FERRY OPERATING IN THE ITALIAN ARCHIPELAGO: STRUCTURAL ANALYSIS FOR WEIGHT OPTIMIZATION BY FINITE ELEMENT METHOD
No full textA research program is developing at the University of Naples “Federico II” whose main purpose is to individuate advanced methods for the design of high-speed vessels in aluminum alloy.
The evolution of the structural design in the field of the high-speed transport has led to the application of new technologies of construction. Particularly the use of aluminium seems to be particularly suitable in the realization of fast ferry designed for small and medium coastal shipping.
The structural design process for such ships must satisfy some requirements, which are the strength analysis to the local and global loads and the structural optimisation of weight.
First of all a general layout configuration has been drawn starting from design data and requirements for the connections between Tyrrhenian towns and near islands, of Campania, Pontino, Tuscan and Sicilian archipelagos. The internal subdivision has been obtained basing on the HSC2000 code.
Successively basing on a study that has led to a first step hull form (taking into account hydrostatic and hydrodynamic requirements), the problem of the structural analysis for such ships has been studied. It has been started from the consideration that, for an optimisation of the structural design process, a finite element method in the quasi-static form must be applied to the entire structure, in order to evaluate the “real” stresses and strains all over the hull and to identify the most critical structural elements.
Finally the results obtained have been particularly discussed
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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