1,720,979 research outputs found
Moldes para substancias plasticas: optimizacion con tecnicas CAE de un sistema de inyeccion
No full textCon este studio los autores se han propuesto desarrollar un metodo de anteproyecto dedicado a los moldes para substancias plasticas, el cual, mediante una serie de pruebas de simulacion con software CAE a elementos acabados Molflow 2.0, consente determinar las dimensiones optimas del sistema de inyeccion; de forma especifica se ha examinado en detalle la inyeccion submarina con expulsor empleada para la produccion de piezas que no presentan una pared vertical de sosten para el punto de inyeccion
Sistema CAPP semigenerador para elaboraciones de moldes para substancias plasticas con modo de administracion de la vida de los utensilios en tool room
No full textLos autores se han prepuosto desarrollar con aste estudio un metodo para administrar el proyecto y la la produccion de moldes para substancias plasticas, el cual, usando un sistema CAPP de tipo semigenerador, se pueda utilizar en una realidad general de la industria metalurgica que trabaja en este sector. El software puesto a punto, valiendose de una clasificacion en familias tanto del molde completo cuanto de los correspondientes particulares, permite definir el proyecto del nuovo molde y egualmente desarrollar el ciclo de fabricacion de cada uno de sus componentes
Desarrollo de tecnicas CAE para proyectar moldes para substancias plasticas con el fin de obtenir un control en linea de los procesos de Injection molding
No full textLos Autores se han propuesto con el metodo IMS basado en el concepto de Concurrent Engineering, las tecnicas necessarias para obtener los mejores rendimentos en la injection molding, tanto desde el punto de vista economico cuanto desde el cualitativo, con el objetivo de minimizar los costo
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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