1,720,955 research outputs found
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
Study of gas-fine flow in a packed bed with an application to the ironmaking blast furnace
No full textThe iron and steelmaking industry uses coal as the primary reducing agent. The carbon that is the major component of coal is finally released into the environment as carbon dioxide. One of the effective ways to reduce the coke consumption and thus the reduction in greenhouse gases is to introduce coal or other carbonaceous materials through the tuyere. However, this can be done only up to some extent as injection of these materials reduces the bed permeability which in turn affects the operation and productivity of the blast furnace (BF). Previous studies have shown that at a higher pulverised coal injection (PCI) rate and depending on the operating conditions of the furnace, some amount of coal remains unburnt and consequently the ashes and coal particles, in the form of powders, may be entrained in the gas stream or be deposited into the lower zones of the BF. However, the physics of the pulverised coal within the furnace is still not well understood, especially in presence of raceway and tuyere protrusion. Raceway is very important in iron-making BF as its size and shape determines the aerodynamics of BF and thus the heat and mass transfer. Therefore, the study of fine flow in a packed bed is a necessary precursor to understand the above-mentioned processes/phenomena.
For the validation purpose, two-dimensional experimental studies were performed at room temperature on the various packed bed such as a rectangular bed with and without a cohesive zone and a cylindrical bed without a cohesive zone. Both the packing and fine particles were made of glass material. Steady state of experiment with fines was achieved based on the recently developed accurate mass balance method which dictates that fines into the system must be equal to fines out of the system.
Most research neglect vital characteristics of BF, such as lateral inflow, presence of tuyere protrusion, the raceway’s shape and size, and cohesive zone leading to a significant incongruence with the BF being modelled. The present work incorporates these features into a 2D numerical study of a gas–fines–solid system. The mathematical modelling considers the gas and fines as a Eulerian–Eulerian system with the constant voidage model for the solid phase representing the packing particles. In presence of a cohesive zone, the cohesive blocks were assigned zero porosity. Well-established theoretical relations and correlations are used to determine the inter-phase forces and fines accumulation regions. Particular emphasis is placed on the accurate representation of the raceway formed at the tuyere exit, and three approaches are considered, viz., its absence, a correlation-based prediction, and an iso-stress-based model. The sensitivity analysis is done with a marked interest in the raceway shape and size and accumulation profiles of the fines which are important parameters in the overall flow characterization. Additionally, structural parameters such as cohesive zone configuration, cohesive block porosity, and tuyere protrusion are also varied, and their effect on the raceway and static holdup profiles are characterised. The sensitivity analysis shows that the raceway shape and size play a vital role in the flow of gas-fines and influence the accumulation of fines. While most of the parameters varied have a noticeable effect, certain factors such as fines feed rate and size exhibit negligible consequences.
The model predicts the static holdup profile through a correlation based on experimental data. Developed model is able to predict the pressure loss reasonably well against experimental and published data for both clean gas and gas–fine flow in a packed bed with a lateral and bottom injection of gas and fine. Similarly, the model is able to predict correctly the raceway shape & size, pressure profiles in both vertical and horizontal directions as well as fines static holdup both in the presence and absence of cohesive blocks. All the results indicate an excellent agreement with the experimental data and lend credibility to the model and solver.CSIR, DS
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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