1,720,980 research outputs found
Free Vibrations of Foundation Beams on Two-Parameter Elastic Soil
No full textA finite element free vibration analysis of beams on a two-parameter elastic foundation is performed using the exact shape functions. The stiffness matrix and the mass matrix are deduced in closed form for the whole parameter range. Numerical comparisons and examples allow us to check the performance of the proposed finite element. A practical example ends the pape
Static analysis of a Bickford beam by means of the Differential Quadrature Element Method
No full textThe use of Mathematica for the analysis of a strongly nonlinear two-degree-of-freedom system by means of the modified Lindstedt-Poincarè method
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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
A modified quadrature element method to perform static analysis of structures
No full textIn this paper, an improved version of the quadrature element method (QEM) is proposed. By means of
a careful distribution of sampling points, the proposed method overcomes the drawback of the distance of the QEM without introducing further degrees of freedom at the ends of the element as in the di4erential quadrature element method (DQEM). The aim of the paper is to show the potentialities of this modied quadrature element method (MQEM) for several structural examples
DQ solutions of a vibrating membrane model: an error analysis
No full textIn order to investigate the possible application of the quadrature rules to a problem in the three-dimensional space-time domain, an error analysis is here performed. Some considerations about the error function confirm the conditional stability of the method and the necessity of a suitable distribution to contain the errors
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
Influenza dell'ammoniaca sull'interazione tra il ceppo vaccinale dell'IBV e l'epitelio tracheale: indagini al microscopio elettronico a scansione
No full textAppropriate 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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