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ПРО ОКРЕМІ СЕНТЕНЦІЇ-КОМІЛЬФО В ТЕОРІЇ АВТОМОБІЛЯ
Get PDFThe article deals with the critical investigation of three maxims that develop the vehicle theory. The first one considers so called “static turn” as a very important notion that “was not considered” by theory. The second one insists on, the idea of “mass centre position stabilization” importance that allegedly allows neutralizing the road longitudinal profile impact on traffic. The third one affirms that ideal for pull and speed characteristics of conventional engine should be rotation moment hyperbolic law from working cycle frequency. All enumerated maxims are reasonably challenged. The research proves that “static turn” is long known concept; the idea of “mass centre position stabilization” importance is completely wrong; hyperbolic law cannot be ideal considering conventional engine.Критично розглядаються три сентенції, які ніби поглиблюють теорію автомобіля. Перша з них висуває так званий «статичний поворот» автомобіля як вельми корисне поняття, яке «не зауважила» теорія. Друга наполягає на чинності технічної ідеї «стабілізації положення центра мас», що ніби дозволяє нівелювати вплив поздовжнього профілю дороги на рух автомобіля. Третя стверджує, що за ідеал тягово-швидкісної характеристики поршневого двигуна внутрішнього згоряння має правити гіперболічна залежність обертального моменту від частоти робочих циклів. Всі перелічені сентенції аргументовано поставлено під сумнів. Показано, що: «статичний поворот» — віддавна відоме поняття; ідея «стабілізації положення центра мас» — цілком хибна; гіперболічна характеристика не може правити за ідеал, коли йдеться про поршневий двигун
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
ПАРАМЕТРИЧНА ІДЕНТИФІКАЦІЯ АВТОМОБІЛЯ
Get PDFThe article deals with the various methods characteristics and capabilities of the most important car parameters and environment identification: coefficient of rolling resistance, loss coefficient in driveline and aerodynamically coefficient. Research methodologies of vehicle in aerodynamic tunnel, on dynamometer road in the stable motion mode and on the real road in coasting mode and so on have been opposed against each other. The aerodynamic tunnel has been alleged to be a tool of vehicle parametric identification with too limited capacity and methodology of free coasting informationally can more or less operate effectively too primitive vehicle models. Facts that determine exactly dynamometer road as the most effective tool of parametric identification have been provided. Also, the research proves that opportunities for further improvement exactly the identification technology using dynamometer road are the most significant.Вивчаються особливості й можливості різних методів ідентифікації найважливіших параметрів автомобіля й довкілля: коефіцієнта опору коченню, коефіцієнта втрат в трансмісії та аеродинамічних коефіцієнтів. Протиставляються одна одній методології дослідження автомобіля в аеродинамічному тунелі, на динамометричній дорозі в режимі усталеного руху, на реальній дорозі в режимі вибігу тощо. Стверджується, що аеродинамічний тунель — інструмент параметричної ідентифікації автомобіля з надто обмеженими можливостями, а методологія вільного вибігу інформаційно може більш-менш ефективно обслуговувати занадто примітивні моделі автомобіля. Наводяться аргументи, що визначають саме динамометричну дорогу як найбільш ефективний інструментарій параметричної ідентифікації. Визнано також, що й можливості подальшого удосконалення саме технології ідентифікації з використанням динамометричної дороги є найвагомішими
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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