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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
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
REVIEW OF TOPICAL ENLARGEMENT IN LASER BEAM MACHINING
Get PDFLaser beam technology is a standout amongst the most generally utilized warm vitality based non-contact sort progress machining process which can be connected for entire scope of materials. The cost of slicing hand-to-machine materials by customary mechanical machining procedures is high because of the low material expulsion rate and short device life, and a few materials are unrealistic to be cut by the traditional machining process. Laser beam/pillar is focused for softening and vaporizing the undesirable material from the parent material. It is reasonable for geometrically complex profile cutting and making smaller than usual openings in sheet metal. It gives portability to natives and cargo, among the locales of Europe and past, while being a motor for monetary development and employments. It is accordingly critical that development is accomplished in a feasible way, thinking about wellbeing and security worries and additionally unfriendly atmosphere pertinent and ecological impacts. Lasers are generally utilized as a part of assembling, correspondence, estimation and restorative. Vitality thickness of the laser beam/pillar can be adjusted by fluctuating the wavelength. This property has made the lasers capable for expelling to a great degree little measure of material and has prompted the utilization of lasers to produce little elements in work section constituents. The basic investigation of different hypothetical and exploratory reviews is utilized to portray the execution of laser pillar miniaturized scale machining on a portion of the propelled manufacturing materials. This paper gives a survey on the different research activities done in laser beam technology. The substance of paper contains a concise presentation of recent development in laser beam and its improvement
Effects of process parameters on depth of cut in Abrasive Waterjet Cutting of phosphate glass
No full textInfluence of nanoclay on mechanical and thermal properties of glass fiber reinforced polymer nanocomposites
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