1,720,957 research outputs found
Identificação de origem das fontes de Partículas Sedimentadas por meio do acoplamento de Modelos de Dispersão e Receptor
No full textThe identification of origin and quantitative distribution of PM and its sources is an important step in providing information that guides the development of air quality management strategies. This Master's dissertation aimed to investigate the coupled use of the CALPUFF atmospheric dispersion model with the CMB receptor model in order to minimize or eliminate the effects of source collinearity on the results provided by the receptor model. The study by Santos et al. (2017) was utilized, in which the authors identified contributing sources to the results of sedimented particle deposition at eight receptor points in the RGV during the period from April 2009 to March 2011, with the need to group some sources to meet the CMB model parameters. This resulted in two source groups: coal and steel. To overcome this limitation, the CALPUFF dispersion model was used to simulate the dry deposition of PM in the RGV. Then, using the CMB output data along with the CALPUFF simulations, a methodology for integration between the two models was developed, allowing for the specific contribution of each inventory source to be identified and enabling the separation of sources previously grouped by the CMB. As a result, it was found that the sources of ore, Vale furnaces, and Vale pellets had a significant impact on dry deposition for the steel group, while for the coal group, emissions related to coal transport and storage, mainly from the Vale company, had a greater impact. It is worth noting that these findings have significant implications for air quality management in the RGV, providing a solid foundation for decision-making aimed at protecting public health and the environment. Finally, it should be emphasized that this work paves the way for further investigations to further refine the coupling methodology between these models.A identificação de origem e a distribuição quantitativa do PM e suas fontes é uma etapa importante no fornecimento de informações que orientam o desenvolvimento de estratégias de gestão da qualidade do ar. Esta dissertação, teve como objetivo investigar o uso acoplado do modelo de dispersão atmosférica CALPUFF com o modelo receptor CMB a fim de minimizar ou eliminar os efeitos da colinearidade de fontes de Partículas Sedimentadas (PS) na Região da Grande Vitória (RGV). Utilizou-se como base o estudo de Santos et al. (2017), no qual os autores identificaram as fontes contribuintes para deposição de PS em oito pontos receptores da RGV durante o período de abril de 2009 a março de 2011, com a necessidade de agrupar algumas fontes para atender aos parâmetros do modelo CMB, surgindo assim dois grupos de fontes: carvão e siderurgia. Para superar essa limitação, o modelo de dispersão CALPUFF foi usado para simular a deposição seca de PS na RGV, e então, em posse dos dados de saída do CMB juntamente com as simulações do CALPUFF foi desenvolvida uma metodologia de integração entre os dois modelos que, permitiu identificar a contribuição específica de cada fonte inventariada, possibilitando separar as fontes anteriormente agrupadas pelo CMB. Como resultados, encontrou-se que as fontes Minério, Fornos Vale e Pelotas Vale tiveram um impacto significativo na deposição seca para o Grupo Siderurgia e, para o Grupo Carvão, as emissões relacionadas ao transporte e armazenamento de carvão, principalmente da empresa Vale, apresentaram maior impacto. Ressalta-se que, esses resultados têm implicações importantes para a gestão da qualidade do ar na RGV, fornecendo uma base sólida para a tomada de decisões visando a proteção da saúde pública e do meio ambiente. Por fim, destaca-se que o trabalho realizado abre caminho para investigações adicionais visando aperfeiçoar ainda mais a metodologia de acoplamento entre esses modelos.Fundação de Amparo à Pesquisa do Espírito Santo (FAPES
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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