1,721,102 research outputs found
Energy recovery from industrial processes using chemical substances
Full text linkIl lavoro di ricerca ha lo scopo di proporre un sistema innovativo per ottenere contemporaneamente la valorizzazione energetica degli scarti di legno vergine derivanti da processi industriali e l'abbattimento dei COV. Partendo dall’analisi sperimentale dell'efficienza di un ossidatore termico convenzionale, presente nell’azienda “caso studio”, i risultati sono stati utilizzati come input per l'analisi cinetica con il software GasDs. Le simulazioni hanno valutato la possibilità di combustione simultanea della biomassa vergine e di aria inquinata da COV in diversi scenari di temperatura, geometria di reazione e quantità in ingresso. In ottica di uso sostenibile delle risorse, questo studio mira a contribuire ad una più attenta gestione degli impatti e alla protezione ambientale. Inoltre, può essere considerato un punto di partenza per ulteriori ricerche.The research evaluates an innovative system for the energy valorization of raw wood biomass waste from industrial processes and VOCs abatement. The efficiency of a conventional thermal oxidizer was investigated experimentally in a company case study. The results were used as a baseline for kinetic analysis with GasDs software. Simulations evaluated the simultaneous combustion of virgin biomass and VOC-polluted air under different scenarios. For the sustainable use of resources, this study aims to contribute to environmental protection and can be considered a starting point for further research
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
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
A critical review of the recent evolution of Life Cycle Assessment applied to milk production
No full textLife Cycle Assessment (LCA) is one of the key tools for the evaluation of the environmental sustainability of the agricultural sector. LCA related to milk production has gained attention in recent years, but the results are often discordant and conditioned by the practitioners’ choices. This has made it difficult to clearly identify the most environmentally friendly way to produce milk. In the present paper, 44 milk LCA studies published after 2009 are reviewed, in order to evaluate the level of harmonization and comparability of methods and results, and to discuss emerging issues and hot topics that would be worth further investigation. Furthermore, the effects that the choice of functional unit and allocation rule could have on the results were statistically analyzed. The understanding of the current research direction of milk-LCA studies is useful to promote a more responsible and sustainable livestock production in the perspective of increasing animal protein demand. This review highlighted the difficulties encountered in comparing milk LCA studies, underlining the importance of practitioners’ choices in determining the results. Harmonization among LCA studies applied to the milk sector still represents a goal to be achieved. It appeared that future LCAs should investigate a broad range of impact categories, including biodiversity and water consumption; define one or more common functional units; improve transparency, giving a detailed description of system boundaries and reporting the method used for impact calculation; and systematically conduct a sensitivity analysis for a better understanding of the effects of the choices of method
The evolution of LCA in milk production
No full textThe comparison among different LCA studies is challenging. Analyzing 29 original articles selected among LCAs related to milk production, we evaluated their level of harmonization and the uniformation to the major standards currently available for the milk sector
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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