1,720,960 research outputs found
ERGONOMICS, DESIGN AND COMFORT FOR THE AUTOMOTIVE INDUSTRY
No full textThe paper aims at describe the design methodology for the development of new products through a creative process, shared with different actors. The research is aimed at the development of new automotive concepts and specifically to an ergonomic and eco-friendly seat for a vehicle for future urban mobility. The application procedure is derived essentially from the study and synthesis of ergonomic principles, from which it is legitimized through laboratory tests. The ergonomic software in virtual environment has demonstrated the high level of the scientific basis, at the same time validated by full regulatory and technical compliance.
The Scientific methodology goes from the concept sketches, evaluated with weighted product design techniques, to the 3D CAD and CAS models and to the Virtual Prototype immersed in the environment for Ergonomics studies; it can be applied in the automotive industry. The operating methodology was achieved through the following steps: the first step was CAD components modelling (from the sketches to the 3D parts); then, the CAS validation (the style is evaluated by dedicated tools for shapes quality); design and validation of a "configurator" of the virtual prototype (CAD/CAS Model) of the project seat (in order to set different solutions according to the specific requirements) and ergonomic validation through the use of "virtual human models", for testing comfort of different percentiles based on a sample population database. The research team have designed a seat aiming at the optimization of the postural comfort through the use of specialized software, CAS/CAD and Ergonomic Control.
Thanks to the fundamental anthropometric notions it has been possible to design a profile that allows continuous contact of the manikin to fourteen cushion cylinders to ensure a uniform pressure distribution, functional to optimal comfort. It has been developed a seat which optimally accommodates the entire user population (5 percentile female - 95 percentile male). The lumbar support area was obviously connected and linked naturally to the new cervical and dorsal surface of the backrest.
During the project development the sinking between virtual mannequin and fourteen cylinders/cushions for both seat and backrest has been identified, defining the dimensioning of cylindrical cushions the choice of material (polyurethane foam/pelprene). As a result, their density have been differentiated depending on the position inside the seat, in order to obtain the maximum passenger comfort without having to adjust the seat, through the knowledge of IRA parameter (Sinking Resistance Index). The particularly compact design of the seat will allow wider room for the rear passengers. The seat, fully recyclable and dismountable, will encourage recycling at end of the product life. The lightness of the structure and cushions will reduce overall weight limiting CO2 emissions. In the event of an accident the overall reduction in weight, with regard to the safety testing of future Euro NCAP crash tests, will minimize whiplash injuries.
The described methodology aims at the design of the seat which combines different studies and techniques concerning materials, geometries, human-product interaction, in order to reach the best concept in terms of comfort, style, working behavior, product life cycle
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
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Ergonomic Design Approach for an Urban Bus
No full textThe paper aims to describe a functional design methodology for the development of new products for the passenger transport vehicle sector through an innovative application process. The IBIS (Innovative Bus Integrated and Sustainable) project is part of a specific industrial research and experimental development program in the automotive sector, focused on the construction of an electric-powered modular bus with eco-sustainability characteristics. The project followed a collaborative process that involved researchers, experts in different disciplines and the supply chain of small and medium-sized Campania companies, with a view to integration, collaboration and hybridization of knowledge. The research investigates the evolution of sustainable mobility models in the post-digital scenario, focused on the smart city topic and sharing strategies with the automotive supply chain. Sustainability is the main reference of the research line with reference not only to the product but to the interaction with smart urban systems
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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