1,720,959 research outputs found
Evolution of Mobile Software Development from Platform-Specific to Web-Based Multiplatform Paradigm
No full textIn this essay, we outline a projection on the trend of using web technologies for creating end-user applications in mobile devices. Following a paradigm shift in the software industry, from only-binary applications to dynamic web applications, mobile web development tools evolve to offer an integral native solution that allows to simplify the software process and broad its scope to a true, single cross-platform development effort. Soon, mobile web development tools will be preferred by designers and programmers thanks to their versatility, economy and usefulness, less dependent on specific platforms and SDKs, while fully functional and reliable in comparison to their binary counterparts
Thermal simulation and package investigation of wireless gas sensors microsystems
No full textGas sensor arrays based on metal oxides operating at high temperature are commonly used in many application fields. They can operate on different principles and each sensor may show very different responses to the individual gases in the environment. Data coming from the array can be merged for reliable gas detection. One point which is common to the different sensors types is that the atmosphere to be sensed must flow on or through the sensor itself. This work investigates air flows in gas sensor packages, and proposes a new package to improve gas exchange through natural convection, aiming to allow the gas detection in the case of very small gas concentrations. The study is based on multiphysics finite element method simulations using a commercial software tool
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
Transition from heterogeneous to homogeneous regime in disordered superhydrophobic surfaces
No full textIn Superhydrophobic systems, a spontaneous transition from heterogeneous to homogeneous regime can occur in time. This transition can hinder the sliding motion of a water drop deposited on the surface, then hampering many applications of such coatings. In this paper, we present a detailed study of this phenomenon on a new kind of Superhydrophobic surfaces, characterized by a strong spatial disorder. We demonstrate that disorder can help to prevent the transition, which assumes a peculiar behavior
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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