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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
Development and research of universal energy saving subsystem power supply to the optoelectronic scanner and precision GPS / GLONASS space receiver
Get PDFРобота спрямована на створення універсальної підсистеми електроживлення
наносупутників, що зможе забезпечити високоякісне живлення космічних приладів -
прецизійного приймача GPS\GLONASS та оптико-електронного сканера (ОЕС) у якості
корисного навантаження НС GraviSat та PolyITAN-3.
Основною науковою проблемою проекту є оптимізація схемотехнічних та
конструктивних рішень підсистеми електроживлення наносупутників, низький рівень
електромагнітних завад, висока потужність корисного навантаження (до 10 Вт при формате
3U CubSats) та арсенід-галієві сонячні батареї, що розкриваються. Також необхідним є
автоматичне формування циклограм керування електроживленням з рознесенням у часі
роботи корисного навантаження та інших систем НС, та рівномірніший часовий розподіл
навантажень. Це дозволить використовувати енергію більш ефективно, а також значно
зменшить рівень завад при роботі чутливих вимірювальних систем дозволяючи їм працювати
більш якісно та точно, а також збільшить ефективність використання енергії супутником в
цілому.
Предметом дослідження і розробки є
- створення засобів та методів зменшення електромагнітних завад корисного
навантаження наносупутників, оптимізація циклограм керування приладами та системами
наносупутників PolyITAN-3 та GraviSat для максимізації їх запасу енергії або залишкового
часу роботи.,
- схемотехнічні та конструктивні рішення для ефективного енергозабезпечення
космічних апаратів в умовах впливу космічних факторів.
Метою проекту є розробка методів та способів формування циклограм керування
перетворювачами системи електроживлення, для ефективного використання енергії
електронною платформою для наносупутників PolyITAN-3 та GraviSat із оптикоелектронною камерою-сканером С5180 та приймачем GPS/GLONASS СН-4706М,
модифікованими під космічне використання; зменшення рівня електромагнітних завад та
збільшення часу роботи НС на орбіті, виготовлення та експериментальне дослідження
параметрів (струми, напруги, їх пульсації, тощо) удосконаленої підсистеми електроживлення
для експериментальної моделі до наносупутників PolyITAN-3 та GraviSat в проектах МОН.
Розроблена система електроживлення забезпечує наступне:
- роботу первинного джерела енергії (сонячних батарей) на навантаження й заряд
акумуляторної батареї (характерний для освітлених ділянок орбіти) з відбором максимальної
потужності;
- роботу акумуляторної батареї на навантаження при непрацюючому первинному
джерелі енергії (характерний для тіньових ділянок орбіти);
- спільну роботу первинного джерела енергії й акумуляторної батареї на навантаження
(характерний для освітлених ділянок орбіти у випадку перевищення споживаної потужності
енергії первинного джерела);
- електроживлення навантажень із необхідними характеристиками;
- дистанційне керування каналами;
- постійний телемоніторинг каналів навантаження;
- електроживлення оптико-електронної камери-сканера С5180 та приймача
GPS/GLONASS СН-4706М, модифікованими під космічне використання, із необхідними для
їх характеристиками;
- 6 каналів навантаження з можливістю апаратного вставлення вихідної напруги в
діапазоні 1,3-12В;
- низький рівень власних електромагнітних завад;
- забезпечення теплових режимів елементів систем електроживлення НС в умовах
впливу космічного простору;
- функцій включення/виключення бортового обладнання та проведення діагностики всіх
підсистем і корисного навантаження на початковому періоді орбітального польоту супутника;
Проведено також:
- виготовлення стендів для імітації систем електроживлення для перевірки і
налаштування підсистем НС та їх програмного забезпечення;
- проведення повного циклу досліджень та випробувань;
1. автономні та комплексні наземні випробування експериментального зразка ПЕЖ та НС із
оптико-електронною камерою-сканером С5180 та приймачем GPS/GLONASS СН-4706М,
модифікованими під космічне використання, в термовакуумній камері в умовах впливу
космічних факторів.The work is aimed at creating a universal power supply subsystem for nanosatellites,
which will be able to provide high-quality power to space devices - precision GPS \ GLONASS
receiver and optoelectronic scanner (OEC) as a payload of GraviSat and PolyITAN-3.
The main scientific problem of the project is the optimization of circuit and design solutions of
the nanosatellite power supply subsystem, low level of electromagnetic interference, high payload
power (up to 10 W in 3U CubSats format) and opening arsenide-gallium solar panels. It is also
necessary to automatically generate power management cyclograms with a difference in the operating
time of the payload and other emergency systems, and a more uniform time distribution of loads. This
will allow the use of energy more efficiently, as well as significantly reduce the level of interference
in the operation of sensitive measuring systems, allowing them to work more efficiently and
accurately, as well as increase the efficiency of energy use by the satellite as a whole.
The subject of research and development is
- creation of means and methods of reduction of electromagnetic interference of payload of
nanosatellites, optimization of cyclograms of control of devices and systems of nanosatellites
PolyITAN-3 and GraviSat for maximization of their energy reserve or residual operating time.,
- circuit and design solutions for efficient power supply of spacecraft under the influence of
space factors.
The aim of the project is to develop methods and ways of forming cyclograms of power supply
converters control, for efficient energy use by electronic platform for PolyITAN-3 and GraviSat
nanosatellites with optoelectronic camera-scanner C5180 and GPS / GLONASS CH-4706M receiver,
modified for space use; reducing the level of electromagnetic interference and increasing the time of
emergency operation in orbit, fabrication and experimental study of parameters (currents, voltages,
their pulsations, etc.) of the improved power supply subsystem for the experimental model to
PolyITAN-3 and GraviSat nanosatellites in MES projects.
The developed power supply system provides the following:
- operation of the primary energy source (solar batteries) for the load and charge of the battery
(typical for illuminated areas of the orbit) with the selection of maximum power;
- operation of the battery for load when the primary energy source is not working (typical for
the shadow areas of the orbit);
- joint work of the primary energy source and the battery on the load (typical for illuminated
areas of the orbit in case of exceeding the power consumption of the primary source);
- power supply of loads with necessary characteristics;
- remote control of channels;
- constant telemonitoring of load channels.
- power supply of the C5180 optoelectronic camera-scanner and GPS / GLONASS SN-4706M
receiver, modified for space use, with the necessary characteristics for them;
- 6 load channels with the possibility of hardware setting of the output voltage in the range of
1.3-12V;
- low level of own electromagnetic interference;
- providing thermal regimes of elements of emergency power supply systems in the conditions
of space influence;
- on / off functions of the onboard equipment and diagnostics of all subsystems and payload at
the initial period of the satellite's orbital flight;
Also conducted:
- production of stands for simulation of power supply systems for testing and adjustment of
emergency subsystems and their software;
- conducting a full cycle of research and testing;
autonomous and complex ground tests of the experimental sample of PEZH and NS with optoelectronic camera-scanner C5180 and GPS / GLONASS receiver SN-4706M, modified for space use,
in a thermovacuum chamber under the influence of space factors
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
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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