1,720,964 research outputs found

    LA CERTIFICAZIONE ENERGETICA DEGLI EDIFICI UN METODO DI CALCOLO PER GLI EDIFICI RESIDENZIALI - seconda parte

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    Il tema della qualità e della certificazione energetica degli edifici, sebbene introdotto in Italia fin dal 1990 con la Legge 10 e in ambito comunitario dal 1993 con la Direttiva n. 93/76/EEC, sta suscitando in questi ultimi tempi un rinnovato interesse, a causa delle problematiche relative alla riduzione dei gas-serra e della nuova crisi petrolifera che sta investendo i paesi occidentali. Il lavoro si propone di fornire una procedura semplificata per la classificazione energetica degli edifici, tramite un nuovo parametro di qualità energetica, il FECS (fabbisogno energetico convenzionale stagionale). Il FECS consente di calcolare in maniera speditiva il fabbisogno energetico convenzionale stagionale, in regime stazionario, di un edificio ed è espresso in kWh/m2 anno; in analogia con la legislazione vigente, è stato definito anche il valore limite di questo parametro (FEClim). La metodologia di calcolo proposta è stata validata su un set di edifici reali, ottenendo errori inferiori all’8% rispetto ai metodi di calcolo più complessi. E’ stato inoltre introdotto un ulteriore indice (ICM, indice di consumo medio), rappresentativo dei consumi specifici reali registrati nell’edificio negli ultimi anni. Infine si è elaborata una proposta di certificato energetico che riporta i valori di FECS, FEClim e ICM e visualizza in maniera immediata, tramite una scala cromatica, il giudizio sulla qualità energetica dell’edificio

    A methodological proposal for the identification of energy-environmental performance indicators aimed at recovering the air quality

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    The paper deals with the introduction of a complex index capable of evaluating environmental air quality in industrial areas. In Italy regional plans of recovery and protection of air quality have been put in practice in order to identify areas where the increase of the emissions into atmosphere, owing to urban and/or industrial development, should be limited or prevented. The methodology is founded on an evaluation system of energy efficiency of cogeneration plants, based on some meaningful energy-environmental performance indicators, containing weighting factors taking into account the Best Available Techniques (BATs), even considering the contribution of secondary particulate matter. Copyright © 2007 Inderscience Enterprises Ltd

    Building Energy and Environment Performance System (BEEPS): A programme for building energy certification in Italy

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    A study on building energy and environment performance system (BEEPS) programme is presented. The first phase of the program deals with an individual evaluation of the existing buildings, available on the Internet and aimed at providing an initial and simplified calculation. The next phase is a more in-depth study of the buildings that have not met the minimum standards from the individual evaluation. The code developed will use parameters such as resource consumption, environmental impact, indoor environmental quality, materials used, and economic costs

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

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    We 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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