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
Optimasi Nilai Kekakuan dan Koefisien Redaman pada Suspensi Sepeda Motor Honda Beat dengan Metode Genetic Algorithm Berdasarkan Standar Kenyamanan ISO 2631
No full textSepeda motor adalah kendaraan yang paling umum pada saat ini yang digunakan oleh Masyarakat di Indonesia, hal penting yang harus diperhatikan dalam berkendara sepeda motor yaitu kenyamanan berkendara. Kenyamanan berkendara dapat didefinisikan dimana pengendara mengalami getaran dari ketidakrataan permukaan jalan yang paling minimal. Oleh karena itu, diperlukan optimasi nilai kekakuan dan konstanta redaman pada sistem suspensi pada sepeda motor dengan kecepatan dan profil jalan yang dilalui. Kenyaman berkendara ditentukan oleh standar internasional yaitu ISO 2631. Penelitian ini menggunakan algoritma genetik untuk mendapatkan nilai kekakuan dan koefisien redaman yang optimal untuk digunakan pada sistem suspensi kendaraan. Pemodelan sistem akan disimulasikan menggunakan MATLAB. Parameter yang digunakan berdasarkan data dari produk sepeda motor Honda Beat. Tahap awal dari proses penelitian adalah menentukan populasi awal data, yaitu 100 populasi acak untuk setiap nilai kekakuan dan koefisien redaman untuk suspensi depan dan belakang. Nilai fitness terbaik dari populasi awal akan dipertahankan dan selanjutnya akan dilakukan proses seleksi. Metode seleksi yang digunakan pada optimasi sistem full body kendaraan yaitu roulette wheel selection. Generasi terbaik yang dihasilkan melalui proses selesi akan disilangkan (Crossover). Proses crossover menghasilkan offspring (generasi turunan) yang akan melalui proses mutasi. Kemudian, proses tersebut akan terus berulang sampai tercapai target pemberhentian. Output yang dihasilkan dari optimasi ini yaitu nilai kekakuan dan koefisien redaman suspensi depan dan belakang dengan kriteria pemberhentian generasi maksimal yang divariasikan. Berdasarkan optimasi algoritma genetik yang telah dilakukan, dihasilkan nilai kekakuan dan koefisien redaman yang optimal untuk diterapkan pada sistem yaitu 7578 N/m dan 1636 Ns/m untuk kekakuan dan koefisien redaman suspensi depan dan 11319 N/s dan 2454 Ns/m untuk kekakuan dan koefisien redaman suspensi belakang. Respon dinamis dari percepatan dan perpindahan pada gerak vertikal dengan parameter hasil optimasi memberikan hasil respon yang lebih nyaman, hal ini dapat disimpulkan berdasarkan nilai RMS percepatan pada pengemudi yang telah memenuhi standar kenyamanan ISO 2631. Sistem pengemudi dan penumpang berada dalam tingkat kenyamanan tanpa keluhan di kecepatan 80 km/jam, kecepatan 60 km/jam, dan pada kecepatan 40 km/jam. Dengan suspensi hasil optimasi pengendara dapat bertahan dalam lebih dari 8 jam.
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Motorcycles are currently the most common vehicles used by the public in Indonesia. An important aspect to consider when riding a motorcycle is riding comfort. Riding comfort can be defined as the condition where the rider experiences minimal vibrations from road surface irregularities. Therefore, it is necessary to optimize the stiffness and damping constant values of the motorcycle suspension system, considering speed and road profile. Riding comfort is determined by international standards, namely ISO 2631. This research uses a genetic algorithm to obtain the optimal stiffness and damping coefficient values for use in the vehicle's suspension system. The system modelling will be simulated using MATLAB. The parameters used are based on data from the Honda Beat motorcycle. The initial stage of the research process involves determining the initial data population, which is 100 random populations for each stiffness and damping coefficient value for the front and rear suspensions. The best fitness values from the initial population will be retained, followed by the selection process. The selection method used for optimizing the full-body vehicle system is the roulette wheel selection. The best generation produced through the selection process will undergo crossover. The crossover process generates offspring (descendant generations) that will undergo mutation. This process will repeat until the stopping target is achieved. The output of this optimization is the stiffness and damping coefficient values for the front and rear suspensions, with varied criteria for the maximum generation stopping. Based on the genetic algorithm optimization, the optimal stiffness and damping coefficient values for the system are 7578 N/m and 1636 Ns/m for the front suspension stiffness and damping coefficient, and 11319 N/m and 2454 Ns/m for the rear suspension stiffness and damping coefficient. The dynamic response of acceleration and displacement in vertical motion with the optimized parameters provides a more comfortable response. This conclusion is based on the RMS acceleration values for the rider, which meet the ISO 2631 comfort standards. The rider and passenger system fall within the comfort level without complaints at speeds of 80 km/h, 60 km/h, and at a speed of 40 km/h. With the optimized suspension, the rider can endure more than 8 hours
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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