1,721,037 research outputs found
Modelling Outdoor Thermal Comfort and Energy Demand in Urban Canyons: Validation of a Novel Comprehensive Parametric Workflow
No full textLe caratteristiche acustiche del teatro Greco – Romano di Taormina attraverso misure sperimentali e simulazione numerica
No full textInterventi per la correzione di teatri lirici con l’ausilio di programmi di simulazione numerica.”
No full textInfluenza dell’involucro edilizio sul clima outdoor: studio di un canyon urbano in clima mediterraneo
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
Exergy Analysis of Energy Systems in Buildings
No full textThe energy performance of energy systems in buildings is commonly studied by applying the First Law of Thermodynamics, which allows to quantify the energy losses and to measure the energy conversion efficiency of the single components. However, different forms of energy have different potential to produce useful work, mainly depending on the temperature at which they are available. For this reason, the Second Law of Thermodynamics should also be considered, leading to the definition of exergy as the maximum amount of work that can be produced, through an ideal reversible process evolving until equilibrium with the environment, by a system or an energy flow available at a certain temperature. Exergy is thus a way to measure the 'quality' of an energy flow. This approach is particularly relevant in building applications, where thermal energy is usually exploited at low temperature. This means that the users consume 'low-quality' energy, even when this is made available by the depletion of 'high-quality' energy sources, such as fuels and electricity. The exergy analysis helps identifying such irrationalities, that cannot emerge from energy analysis. The main scope of this paper is to lay sound methodological bases for the exergy analysis of energy uses in buildings. For this purpose, a literature review has allowed to identify methods and metrics commonly used for the exergy analysis, while also highlighting discrepancies and open methodological issues. Moreover, the main lessons learned from this literature review, regarding the rational use of energy in buildings, 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
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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