1,720,954 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Get PDF
    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

    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

    Early fault detection and condition monitoring of transformers

    No full text
    18.09.2025 tarihine kadar kullanımı yazar tarafından kısıtlanmıştır.Bu tez çalışmasında, transformatörlerde meydana gelen elektriksel arızaların tespiti ve durum izleme yöntemleri ele alınmıştır. Transformatörlerde sık karşılaşılan sarım-sarım kısa devre arızaları, kaynak gerilim dengesizliği ve laminasyon arızaları detaylı olarak incelenmiş ve bu arızaların erken aşamada tespiti için yenilikçi analiz yöntemleri kullanılmıştır. Sağlıklı durum ve arıza senaryolarına ilişkin sonuçlar ANSYS® Maxwell yazılımından elde edilen elektriksel ve manyetik parametrelerdeki değişimlerin incelenmesi ile değerlendirilmiştir. Özellikle faz akımları ve kaçak akı dağılımları incelenmiş; bu parametrelerdeki değişimlerin arızaların tespitinde kritik bir rol oynadığı belirlenmiştir. Hızlı Fourier Dönüşümü (FFT) yöntemi kullanılarak arıza sinyalleri frekans ekseninde analiz edilmiş ve sağlıklı ile arızalı durumlar arasındaki farklılıklar net bir şekilde ortaya konulmuştur. Analiz sürecinde, simetrik bileşenler yöntemi ile uzay vektör analizi ve faz açısı spektrumlarının analizi gibi teknikler kullanılarak arızalar hassas bir şekilde tespit edilmiştir. Elde edilen sonuçlar, transformatörlerde meydana gelen elektriksel arızaların erken aşamada tespit edilmesinin mümkün olduğunu ve farklı arıza türlerinin birbirlerinden ayrıştırılabileceğini göstermektedir. Bu çalışma, enerji iletim ve dağıtım süreçlerinin sürdürülebilirliğine katkı sağlayan hızlı ve etkin arıza tespit yöntemleri sunmaktadır.In this thesis, the detection of electrical faults in transformers and condition monitoring methods are discussed. Turn-to-turn short circuit faults, unbalanced supply voltage, and lamination faults, which are frequently encountered in transformers, are investigated in detail, and innovative analysis methods are used for the early detection of these faults. The thesis evaluates both healthy and faulty conditions by analyzing changes in electrical and magnetic parameters obtained using ANSYS® Maxwell software. Phase currents and stray flux distributions were analyzed, revealing that variations in these parameters play a crucial role in fault detection. Fault signals were examined in the frequency domain using the Fast Fourier Transform (FFT) method, which effectively differentiates between healthy and faulty conditions. Additionally, techniques such as space vector analysis, symmetrical component analysis, and phase angle spectrum analysis were utilized to achieve precise fault identification. The results show that electrical faults in transformers can be detected at an early stage, and different types of faults can be distinguished from one another. This thesis provides fast and efficient fault detection methods that contribute to the sustainability of electric transmission and distribution processes

    Appropriate Similarity Measures for Author Cocitation Analysis

    Get PDF
    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

    Dispelling the Myths Behind First-author Citation Counts

    Get PDF
    We 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

    Author Index

    No full text
    Nao informado

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

    No full text
    We 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 Under Sail The Imagination of Jack London, 1893-1902

    No full text
    In 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
    corecore