1,720,963 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
PENGARUH KARBURASI DENGAN VARIASI MEDIA PENDINGIN TERHADAP MICRO STRUKTUR BAJA KARBON
Full text linkHeat treatment is a process of heating and cooling of metals in the solid state to change the physicalproperties of the metal. In the metal that has undergone heat treatment process generally experience changesin the structure due to phase changes in metals in the form of grain size, crystal shape, crystal size, crystaldefects, presipitan and content of certain chemical elements. The presence of carbon steel microstructureperuahan to show a material characteristic that can determine its properties, microstructure can be known ifthe structure is viewed under a microscope metallurgy. The microstructure is known as: ferrite, ferlit,sementik (iron carbide) and austenite with certain variations depending on the level of heat treatmentexperience
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
GAYA SILINDER STICK DAN SILINDER BUCKET PADA EXCAVATOR 320 CATERPILLAR AKIBAT GAYA POTONG
Full text linkThe use of heavy equipment to help physical work is very much in use today, One of them is the Excavator. CAT 320 Excavator jeis has many advantages in using, is evident from the construction equipment, design and engineering technology used. In the design of the machine is certainly not independent of the condition of fuel-efficient, compact and easy operation in sistym.Excavato CAT 320 is equipped to do the job of supporting the boom, stick and bucket. Stick used in the job can be changed according to the type of work to be done. Type of stick used is the type R B 1.9, R 2.5 B, R B 2.9, R 3.9 B, M 1, 9 C, M2.4 C, and M 2.9 B and is tailored to the lift cylinder to be used. The length of each stick is 1900 mm, 2400 mm, 250 mm, 2920 mm, 3860 mm. While the bucket capacity (0.7 to 1.2) m3. With the use of the stick and bucket will be analyzed style stick and bucket cylinder and the diameter of the stick and bucket
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
LAJU KOROSI STAINLESS STEEL DALAM MEDIA AIR LAUT
Full text linkLogam ferro banyak diaplikasikan dalam bidang keteknikan terutama pada lingkungan korosif. Sifat logam ferro yang korosif menyebabkan perlunya alternatif material dalam lingkungan korosif terutama pada lingkungan air laut. Salah satu material yang digunakan pada lingkungan air laut adalah stainles steel.Korosi adalah penurunan mutu logam yang diakibatkan oleh lingkungan atau zat kimia dan berpengaruh pada kondis suatu material yang dapat disebabkan oleh beberapa faktor seperti salinitas, pH, temperatur dan kelarutan oksigen dalam media korosi, dllPerhitungan laju korosi stainles steel dalam media air laut dilakukan dengan perendaman (Immersion) dengan metode kehilangan berat (Weight Losst) menggunakan media korosi air laut kondisi pasang dan kondisi surutDari hasil penelitian diperoleh bahwa pengurangan berat pada kondisi surut lebih besar dibandingkan kondisi pasang yang berpengaruh pada laju korosi.Kata kunci : Korosi, steinles steel , Metode kehilangan berat (Weight Lost), air laut, pasang, suru
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