1,721,058 research outputs found
Controle de qualidade on-line de dados hidrológicos teletransmitidos
Get PDFBrazil, the country with 12% of the available fresh water in the planet, has
considered the water resource management a very important tool . This management includes the
collection of hydrological data of watersheds and nowadays an integrated water resources
management.
For an efficient water resouses management, efficient data acquisition systems are
required to store, control, consolidate, and distribute hydrometeorological data.
Hydrometeorological data are obtained through conventional and telemetric
stations that have been installed in the whole country. Convencional data has been consisted by
the National Hydrometeorological Network operators and managers before it goes to the data
bank. Telemetric data have been consisted manually.
Telemetric data has been transmitted on-line, thus automatic quality control
system are required in order to guarantee that the data used for monitoring and for real time
forecast system are consistent. If inconsistent data are used without any kind of Teste, a decision
based on this forecast and monitoring can be mistaken.
A Quality Control System for Telemetric Hydrological Data was proposed to
validate and consolidate data from telemetric stations of National Water Resouses Agency –
ANA. The hydrological stations use a satellite system to transmit the information. The satellites
that have been used are the Data Collections System – SCD from National Institute of Space
Research – INPE. This system was tested in Tocantins basin stations.
The stations are installed in places where hydrologic response are fast and slow,
and this was very important to test the proposed system, showing an efficient tool for water level
quality control. Quality control for rain data needs more calibration though. Thus it will be
necessary more studies in order to improve the System.Por ser o Brasil um país com uma das maiores disponibilidades hídricas do
planeta, cerca de 12%, a gestão dos recursos hídricos sempre esteve em evidência. Esta gestão
tem sido feita tanto na obtenção de dados básicos das bacias hidrográficas como, atualmente, na
gestão integrada dos recursos. Para que esta gestão seja feita de forma eficiente são necessários
sistemas eficientes de aquisição, armazenamento, controle, consolidação e disponibilização de
dados hidrometeorológicos.
Os dados hidrometeorológicos são obtidos através de estações convencionais e
telemétricas instaladas em todo o território nacional. Os dados de estações convencionais vêm
sendo consistidos pelos operadores e administradores da Rede Hidrometeorológica Nacional ao
serem inseridos na base de dados do sistema de gerenciamento da informação. Em se tratando
dos dados das estações telemétricas, estes vêm sendo consistidos previamente de forma manual.
Como os dados das estações telemétricas são transmitidos On-Line, faz-se
necessário a implementação de sistemas automatizados de controle e consolidação destes, pois os
mesmos são utilizados para monitoramento e previsão hidrológica em tempo real. Dados
inconsistentes, se não forem consolidados, podem alimentar modelos de monitoramento e
previsão levando a tomada de decisão errôneas.
Um Sistema de Controle de Qualidade On-Line de Dados Hidrológicos
Teletransmitidos foi proposto para validar e consolidar os dados das estações telemétricas da
Agência Nacional Águas – ANA.. Nestas estações a teletransmissão dos dados hidrológicos é
realizada através dos Satélites de Coleta de Dados - SCD, do Instituto Nacional de Pesquisas
Espaciais – INPE. O sistema proposto foi testado nas estações da Bacia do rio Tocantins.
As localizações das estações telemétricas em regiões onde as respostas hidrológicas
da bacia são rápidas e lentas contribuíram para os testes do sistema. Por conseguinte, os testes
revelaram uma alta eficiência do sistema para a consolidação da variável nível. Para a variável
chuva o controle de qualidade deve ser melhor aferido. Desta forma, faz-se necessário mais
estudos e sistemáticas para melhorar e consolidar o controle de qualidade on-line dos dados
hidrológicos teletransmitidos
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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