1,721,283 research outputs found
Biomimetic and biomechanics: an integrated Finite Element Analysis approach for the comparison of lumbar disk sector mechanical behavior after a spine overloading
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Advanced Design Concepts and Maintenance by Integrated Risk Evaluation for Aerostructures
No full textThis paper presents an overview of the
achievements of a research and development project
sponsored by the European Commission in the general
area of Key Actions and New Perspectives in Aeronautics.
The project was coordinated by Alenia and involved
partners from major European Aircraft and Helicopter
manufactures as well as research institutions and universities.
The project was in support of EU policies on energy
and environment, in addition to those on transport,
economic and social cohesion, industry and, of course,
research and technology.
The overall objective of Advanced Design concepts and
Maintenance by Integrated risk Evaluation for aerostructures
(ADMIRE) was “to develop a probabilistic foundation
for the application of damage tolerant design of
metallic aircraft structures taking into account the innovative
investigations on the initial flaw concept, crack
growth evaluation improvements and residual strength in
complex geometries”.
The innovation provided by this project was the development
of an overall approach capable of evaluating the
damage tolerance of the structure on a probabilistic basis.
This global risk analysis took into account the stochastic
nature of structural parameters, their variation and
their effects on the design and response properties of aircraft
structural components, in order to estimate structural
safety on a probabilistic basis while providing information
on the confidence to be given to the predicted behavior.
It also incorporated the investigations on the initial
flaw concept, crack growth evaluation improvements
and residual strength in complex geometries
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
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