1,720,963 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
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
AA 5754 sheet shaping by incremental forming and theoretical modeling
No full textFen Bilimleri Enstitüsü, Teknik Eğitim Bölümü, Makine Eğitimi Ana Bilim DalıÜretim hacmi büyük olan sac metal ürünler, ürün başına düşen maliyetin düşmesi nedeniyle geleneksel sac metal şekillendirme yöntemleri ile üretilmektedir. Müşterilerin artan özel ve az sayıdaki taleplerini daha ucuza mal edebilmek amacıyla yeni sac metal şekillendirme teknikleri özellikle Artışlı Şekillendirme (AŞ) günümüzde öne çıkmaktadır. Bu tezde artışlı şekillendirme yöntemi ile iki farklı sac metal ürün üzerinde çalışmalar yapılmıştır. AA 5754 malzemeden olan ürünler sırasıyla duvar eğim açısı 40° olan 24 mm derinliğinde Dikdörtgen parça, diğeri ise duvar eğim açısı 40° olan 7 ile 15 mm arasında değişik derinliğe sahip fotoğraf makinesi kapağıdır. İlgili ürün modelleri ANSYS/LS-DYNA programı ile şekillendirme analizi yapılmış, Şekillendirme Sınır Diyagramı (ŞSD) grafiği kullanılarak sac malzemenin şekillendirme özeliği hakkında ön bilgi edinilmiştir. Taguchi deney tasarımına göre belirlenen deneysel çalışmaları da yapılarak, teorik ve uygulama sonuçları karşılaştırılmıştır.Burada iki farklı şekilde ürün seçilmesindeki amaç; AA 5754 malzemenin artışlı şekillendirmede serbest yüzeylere sahip parçaların şekillenme davranışlarını incelemek ve belirli bir eğim açısına sahip basit şekillerin bu yöntem ile oluşturulmasındaki davranışlarını öğrenmektir. Serbest yüzeylere sahip parçaların şekillendirilmesinde gerilmelerin daha fazla olmasından dolayı yırtılmaların da izlenmesi hedeflenmiştir. Taguchi L9 ortogonal dizisi kullanılarak yapılan deneysel çalışmalar için dört farklı parametre (bilye çapı, kaplama, dikey ilerleme ve yağlama) ve üçer adet seviye değerleri belirlenmiştir. Deneyler sonucunda en etkin parametre ve seviyeler saptanmıştır ve doğrulama deneyleri her bir ürün için üçer adet deney yapılmıştır.Yapılan deneyler sonucunda; 8, 10, 12 mm çaplı bilyeli takımlardan 10 mm çaplı bilyeli takım, TiAlN, TiN ve CrN, kaplamalarından TiAlN kaplamanın, 0,3 - 0,5 - 0,7 dikey ilerleme parametrelerinden de 0,7 mm lik ilerlemenin şekillendirmede etkili olduğu görülmüştür. Gres yağı, bor yağı, makine yağı arasından bor yağın elverişli olmadığı ancak makine yağı ile gres yağı arasında çok belirleyici bir farkın oluşmadığı gözlemlenmiştir. İlgili ürünler için yapılan teorik ve uygulama sonuçları karşılaştırıldığında şekillenme sonu sac metal kalınlıkların birbirine yakın çıktığı görülmüştür.Anahtar Sözcükler: Artışlı Şekillendirme, Taguchi Yöntemi, AA 5754,Sheet metal products having high production volumes are produced with conventional sheet metal production methods due to low production cost per unit. As one of the new sheet metal forming techniques, Incremental Sheet Forming (ISF) comes to forward to answer increasing customer demands on special and low production volumes and to produce at low cost products. In the thesis, the research on different two sheet metal products has been conducted with ISF. The AA 5754 material products were a rectangular cup with wall draft angle of 40º and at depth of 24 mm. and a camera front cover with wall draft angle of 40º and at variable depth of 7-15 mm. The forming analyses of two product models have been realized with ANSYS/LS-DYNA software. Initial forming information about sheet material has been obtained by using Forming Limit Diagrams (FLD). Then the experiments determined by Taguchi experiment design have been conducted. The results obtained from both theoretical and experimental studies have been compared.The purpose of choosing two products in different forms is to investigate the forming behaviors of different free form surfaces with ISF and to learn about forming behaviors on the products produced with ISF with certain wall draft angle. In addition, the observation of the cracks that could be occurred on free forms surfaces, which likely accommodates high stresses in forming, has been aimed. Four different parameters (ball diameter, coating, axial depth and lubrication) and three levels per parameter have been determined for the experiments to be conducted by Taguchi L9 orthogonal array. After results obtained from the experiments the effective parameters and the levels have been determined, and then verification experiments for two parts have been carried out three times.At the results of experiments the effective levels of the parameters are as follows: ball diameter of 10 mm (among 8, 10 and 12 mm diameter balls), TiAlN coating (among TiAlN, TiN and CrN coatings), the axial depth of 0.7 mm (among 0.3, 0.5, 0.7 mm of axial depths). As lubricant it has been seen that unlike boron oil, which was no suitable in forming, there was no big distinct effect among machine oil and grease. When theoretical and experimental results were compared after forming, it has seen that the sheet thicknesses were in good harmony.Key Words: Incremental Forming, Taguchi Method, AA 5754
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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