1,720,956 research outputs found
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
Studi Numerik Pengaruh Diameter Wire dalam Peningkatan Amplitudo Fluktuasi Gaya Lift pada Circular Cylinder dengan D=80mm dan Variasi Reynolds Number
No full textEnergi listrik saat ini menjadi sumber energi yang memiliki peran sangat vital dalam masyarakat global dan masih sangat dibutuhkan. Salah satu upaya yang dapat dilakukan untuk mendapatkan energi listrik alternatif adalah dengan memanfaatkan fenomena Flow Induced Vibration (FIV). Getaran yang disebabkan fluktuasi gaya lift dari aliran kemudian dikonversi menjadi energi listrik oleh Piezoelectric Transducer. Desain silinder yang optimal dibutuhkan untuk mendapatkan gaya lift yang maksimum serta gaya drag yang minimum. Penambahan kekasaran menggunakan wire menjadi salah satu upaya untuk mendapatkan hal tersebut. Oleh karena itu dilakukan analisis terkait pengaruh penambahan wire serta variasi ukuran wire pada silinder sirkular terhadap peningkatan gaya lift dan penurunan gaya drag. Penelitian dilakukan menggunakan metode Computational Fluid Dynamics (CFD) dengan menggunakan software Ansys Fluent 2021 R2. Viscous model yang digunakan adalah URANS (Unsteady Reynolds-averaged Navier-Stokes) dengan model k-ω SST (Shear Stress Transport). Jenis silinder yang digunakan adalah silinder sirkuler berdiameter 80 mm dengan jumlah wire seragam yaitu 8 wire. Variasi dilakukan dengan menambahkan kekasaran permukaan menggunakan wire dengan ukuran 0,8 mm; 0,6 mm; dan 0,4 mm, dengan wire utama diletakkan pada sudut 90o dan simetri terhadap titik stagnasi, kemudian wire lainnya akan diletakkan pada sisi leeward dengan jarak yang sama antar wire, dan dilakukan pada bilangan Reynolds 6 x 103 ≤ Re ≤ 4 x 104. Hasil yang diperoleh dari simulasi bahwa penambahan kekasaran permukaan dengan wire pada sisi leeward efektif dalam meningkatkan nilai CL RMS dan CL RMS/(C_D ) ̅. Silinder dengan ukuran wire 0,8 mm pada Re = 6 x 103 mampu meningkatkan nilai CL RMS hingga 150% dengan CL RMS = 1,431. Sedangkan untuk CL RMS/(C_D ) ̅ hasil terbaik didapat silinder dengan ukuran wire 0,8 mm pada Re = 6 x 103 dengan peningkatan sebesar 75% pada CL RMS/(C_D ) ̅ = 0,885. Adapun nilai Strouhal number mengalami variasi nilai, dengan penurunan terbesar didapatkan variasi silinder dengan wire 0,8 mm pada Re = 6 x 103 (sekitar -11,22%). Sedangkan peningkatan tertinggi didapatkan variasi wire ukuran 0,6 pada Re = 2 x 104 (sekitar 9,43%).
===============================================================================================================================
Electric energy has become a highly vital energy source in global community and remains in high demand. One of the efforts to obtain alternative electric energy is by harnessing the phenomenon of Flow Induced Vibration (FIV). Vibrations caused by lift force fluctuations in the flow are then converted into electrical energy by Piezoelectric Transducers. Optimal cylinder design is needed to achieve maximum lift force and minimum drag force. The addition of roughness using wires is one of the methods employed to achieve this goal. Therefore, an analysis is conducted regarding the influence of adding wires and varying wire size on a circular cylinder concerning the increase in lift force and reduction in drag force. The research is carried out using Computational Fluid Dynamics (CFD) with Ansys Fluent 2021 R2 software. The viscous model employed is URANS (Unsteady Reynolds-averaged Navier-Stokes) with k-ω SST (Shear Stress Transport) model. The type of cylinder used is a circular cylinder with an 80 mm diameter and equipped with a uniform arrangement of 8 wires. Variations are made by adding surface roughness using wires with sizes of 0,8 mm; 0,6 mm; and 0,4 mm. The main wire is positioned at a 90-degree angle and symmetrical to the stagnation, while the other wires are placed on leeward side with equal distances between wires. The study is conducted at Reynolds Number ranging from 6 x 103 to 4 x 104. The simulation results show that adding surface roughness with wires on the leeward side effectively enhances the value of CL RMS dan CL RMS/(C_D ) ̅. Cylinder with 0,8 mm wires at Re = 6 x 103 is capable of increasing CL RMS value by up to 150% with CL RMS = 1,431. As for CL RMS/(C_D ) ̅, the best result obtained with a cylinder with 0,8 mm wires at Re = 6 x 103, showing an increase of 75% in CL RMS/(C_D ) ̅ = 0,885. The Strouhal Number varies, with the most significant decrease observed in the variation with 0,8 mm wires at Re = 6 x 103 (approximately -11,22%). Meanwhile, the highest increase is found in the variation with 0,6 mm wires at Re = 2 x 104 (approximately 9,43%)
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
- …
