1,721,042 research outputs found
Analysis of energy-efficient materials for vessels environmental impact reduction
No full textThe achievement of “green” goals by ship industry requires innovative approaches in the whole ship design process, in order to revise all the aspects concurring to environmental impact. A relevant contribution to vessels’ energy consumption derives from HVAC systems and it is therefore related to comfort requirements. As a consequence, vessels’ environmental impact would benefit from a design addressed at reducing HVAC energy demand, including, for instance, alternative materials. The current works is aimed at suggesting unusual structures and materials to enhance vessels’ environmental performance. According to the principles of Passive Design, several materials and arrangements were analysed. Energy-efficiency performance were investigated by means of numerical and theoretical analysis, addressed at estimating their potentialities in limiting the energy demand. Each investigated alternative was related to its mechanical properties and its potentials in reducing the structural weight, in order to evaluate the consequences of innovative solutions from several points of view
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
BAL NELLA SORVEGLIANZA SANITARIA DEGLI ESPOISTI AD ASBESTO: PROSPETTIVE E PROBLEMI
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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
PROBLEMATICHE NELL'UTILIZZO DELL'HRTC NELLA SORVEGLIANZA SANITARIA DI LAVORATORI ESPOSTI ALL'ASBESTO
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