1,721,336 research outputs found
The Built Landscape of the Cinque Terre
No full textThis paper addresses a case study of the Cinque Terre, whose territory, thanks to the condition of geographical marginality that has characterized the area for centuries, has been slowly shaped by man over time, giving birth to a particular landscape. Thanks to this particularity, the Cinque Terre area was added to the UNESCO World Heritage List in 1997. In 1999, this was followed by the creation of the Cinque Terre National Park, with the goal of managing and preserving the landscape. Soon after, the site began to be known worldwide as a main tourist destination. As a consequence, the slow pace of evolution through which the landscape had been built gave way to a fast metamorphosis of the individual places. This paper discusses the contemporary paradoxes which have ensued in the Cinque Terre in relation to the UNESCO nomination, the transformations which affect the places due to the increase in tourist flows, and the role a project might have in this context
Solid-liquid interfacial conditions for dropwise evaporative cooling
No full textA theoretical research is carried out to describe the thermal behavior of a solid surface subjected to droplet evaporative cooling. The objective of this study is the analysis of various simplified boundary conditions which can be used to generate predictions of the thermal behavior of the solid surface. This study is part of a more general research conducted in order to individuate the global cooling effect of a spray impinging a hot solid surface. A number of numerical algorithms are used to obtain solutions of the governing equations for the various cases examined. Results are presented for the different boundary conditions
Numerical solution of dropwise evaporative cooling
No full textA numerical code for the prediction of evaporative cooling of solid surfaces induced by gently deposited water droplets is presented. The code is based upon a solid-liquid coupled model which predicts the droplet evaporation and the solid surface cooling for materials with thermal conductivity spanning over more than two orders of magnitude. Surface heating by conduction and radiation is considered. The numerical solution of the heat-conduction equation, which links a control volume method (CVM) used for the liquid and a boundary element method (BEM) used for the solid, is presented. By comparing the numerical predictions with available experimental data, the single-droplet code is validated and used as a basis to formulate the multi-droplet model, which is also presented
SIPIC (Sistema Integrato per la Protezione Individuale nei Cantieri): Sistema di Monitoraggio e Controllo
No full text
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
Gold and the U.S. dollar: Tales from the turmoil
No full textWe investigate how the relation between gold prices and the U.S. dollar has been affected by the recent turmoil in financial markets. We use spot prices of gold and spot bilateral exchange rates against the euro and the British pound to study the pattern of volatility spillovers. We estimate the bivariate structural GARCH models proposed by Spargoli and Zagaglia to gauge the causal relations between volatility changes in the two assets. We also apply the tests for change of codependence of Cappiello et al. to study the impact of the turmoil on the relation between gold and the U.S. dollar. We document the ability of gold to generate stable comovements with the dollar exchange rate that have survived the recent phases of market disruption. Our findings also show that exogenous increases in market uncertainty have tended to produce reactions of gold prices that are more stable than those of the U.S. dollar
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
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