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Stereolithography Epoxy Resins: Material Photoelastic Characterization and Analysis of 3D Complex Structures
No full textFotoelasticità tridimensionale: applicazione a modelli complessi realizzati con stereolitografia
No full textNumerical and experimental evaluation of stresses in a human mandible
No full textIn the last two decades, medical and engineering specialists developed a more and more close cooperation. Dental and orthodontic sciences represent an excellent example of this synergic view. In particular, detailed information on stress distribution in the implant region may greatly help clinical experts to reduce risk of failures thus preventing the need for re implantations. Of course, modeling and analysis of biological/medical structures is often based on subjective information that may considerably change from patient to patient.
In view of this, the present research aims to set up a framework for building reliable analysis models from geometrical information gathered with medical imaging tools. In order to check the feasibility of the procedure, we considered the case of a human mandible for which a virtual model is reconstructed from Computerized Tomography. This case is very indicative because of the very high complexity of the anatomical district analyzed. The mandible model thus reconstructed has been studied with FEM analyses simulating four different scenarios that may occur during mastication.
The experimental part of this research is the processing of CT scan files which actually requires a very accurate study and special cares. The experimental work then prosecuted with the construction of the a stereolithographic model that can be utilized for photoelastic investigations
Photoelastic Characterization of Stereolithographic Epoxy Resins and Study of a Car Engine Bracket 3D Model
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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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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