1,720,975 research outputs found

    Potenzialità energetiche delle biomasse residuali in Sardegna

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    In questo lavoro vengono riportati i risultati di un’analisi condotta in Sardegna per la valutazione delle potenzialità energetiche delle biomasse residuali maggiormente significative e del loro potenziale contributo al soddisfacimento del fabbisogno di energia elettrica e termica della regione, prendendo in considerazione anche i connessi aspetti ambientali. Tali risultati mostrano la disponibilità di importanti quantità di biomasse residuali, di differenti tipologie, in grado di fornire un rilevante contributo al fabbisogno energetico dell’Isola. A dispetto dei problemi che l’impiego delle biomasse a fini energetici pone, gli aspetti positivi connessi con il loro sfruttamento sono notevoli, soprattutto in termini di riduzione dell’uso di combustibili fossili e delle conseguenti emissioni

    Potenzialità energetiche delle biomasse residuali in Sardegna

    No full text
    In questo lavoro vengono riportati i risultati di un’analisi condotta in Sardegna per la valutazione delle potenzialità energetiche delle biomasse residuali maggiormente significative e del loro potenziale contributo al soddisfacimento del fabbisogno di energia elettrica e termica della regione, prendendo in considerazione anche i connessi aspetti ambientali. Tali risultati mostrano la disponibilità di importanti quantità di biomasse residuali, di differenti tipologie, in grado di fornire un rilevante contributo al fabbisogno energetico dell’Isola. A dispetto dei problemi che l’impiego delle biomasse a fini energetici pone, gli aspetti positivi connessi con il loro sfruttamento sono notevoli, soprattutto in termini di riduzione dell’uso di combustibili fossili e delle conseguenti emissioni

    Influence of Salting Technology on the Diffusion of NaCl in Swordfish (Xiphias gladius) Fillets

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    Swordfish is the most widespread billfish in the aquatic environment. The industrial processing of swordfish fillets involves salting, drying, and smoking steps. Salting techniques, dry or wet, are the most common method of fish preservation. This work evaluated salt diffusion in swordfish fillets after traditional dry salting and wet industrial injection salting methods. The data obtained from the dry salting studies highlighted that the salt diffusion process in swordfish meat was an unfavorable process depending on the contact time with the salt/meat. Moreover, irregularly shaped fillets negatively affected the salt migration in the different areas, leading to inhomogeneous and possibly unsafe final products. On the contrary, wet injection salting was suitable for processing swordfish fillets. As a result, the final products had a homogeneous salt concentration, maintained the organoleptic characteristics and health benefits for a long period, and achieved a longer shelf-life. Furthermore, the water activity (aw) values detected for the different processed fillets confirmed the physicochemical features of the final products and allow the classification of safe products. Moreover, injection salting is a quick process compatible with industrial production times

    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
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