1,720,961 research outputs found
In-plane Deflection and Free Vibration Analysis of Shear Deformable Curved Beams by Using Spline Collocation Method
No full text楔形配點法(Spline Collocation Method，以下簡稱為SCM)主要是經由前進差分法(Forward Difference Method)、中央差分法( Central Difference Method)，抑或是後退差分法(Backward Difference Method)所推導出之楔形函數(Spline Function)，並配合結點佈置( Collocation )的方式，所發展出的一種數值分析方法；再經由各次的楔形函數修正後，整理可得出完整的B Spline Value Table。文研究主旨在以SCM延伸發展出之MSCM (Modified Spline Collocation Method )，應用於考慮剪力變形的曲梁，導入各種不同外加載重及邊界條件，計算其面內變形(In-plane Deflection)及分析其曲梁自然振動頻率。本文將建立SCM在分析考慮剪力效應曲梁的數值分析模式，並編寫電腦程式分析並驗證之。亦將以SCM結合元素型態得到SCEM(Spline Collocation Element Method)來加以改善SCM在分析上的不足與缺失，使SCM更趨成熟及穩定。後，本研究亦舉若干實例進行SCM數值分析，將分析結果與數學上之解析解相互比較，以顯示SCM及SCEM為一種具有高準確性、便捷性與可應用性的數值分析方法，實為本文宗旨。口試委員會審定書 一 謝 二 要 三一章 緒論 1-1 研究背景 1-2 研究目的 3-3 文獻回顧與研究方法 4-4 研究內容 8二章 SCM及SCEM相關理論介紹 10-1 SCM基本理論介紹 10-1-1 SCM理論推導 12-1-2 MSCM理論推導 18-1-3 SCM求解過程介紹 25-2 SCM載重模擬及符號規定 25-3 SCEM理論介紹 28-3-1 SCEM基本概念介紹 28-3-2 SCEM求解過程介紹 30-4 誤差說明 31三章 SCM與SCEM於剪變形曲梁面內變形之 分析應用 33-1 剪變形曲梁理論 33-1-1 基本假設 33-1-2 控制方程式推導 35-2剪變形曲梁之求解方法 37-2-1 SCM直接法 37-2-2 SCEM直接法 44-3 剪變形曲梁面內變形實例分析步驟介紹 53-3-1 SCM案例分析步驟 53-3-2 SCEM案例分析步驟 62-4 應用SCM及SCM於剪變形曲梁面內變形之分析案例 67四章 SCM於剪變形面內曲梁自由振動分析 100-1 運動方程式推導 100-2 剪變形曲梁之自由振動分析 101-3 自由振動案例分析 105五章 結論與未來展望 121-1 結論 121-2 未來展望 123考文獻 125錄A Forward Difference Method介紹 129錄B 剪變係數 13
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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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