1,720,964 research outputs found
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
Pengaruh komposisi bahan dan tekanan pengepresan pada pembuatan Biopelet terhadap Nilai Kalor dan Laju Pembakaran
No full textABSTRAK
Keterbatasan bahan bakar minyak menyebabkan diperlukannya energi alternatif untuk memenuhi kebutuhan masyarakat. Cangkang biji mete dan sekam padi merupakan biomassa yang ketersediaanya sangat melimpah untuk dimanfaatkan sebagai bahan bakar alternatif. Pada penelitian ini dibuat biopelet untuk mengetahui nilai kalor dan laju pembakaran dengan variasi komposisi bahan dan tekanan pengepresan. Pembuatan biopelet dilakukan dengan mencampurkan serbuk cangkang biji mete dan serbuk sekam padi dengan perbandingan 100% : 0%, 50% : 50%, 0% : 100% dan tekanan pengepresan 5 x 106 N/m2, 10 x 106 N/m2, 15 x 106 N/m2. Dari hasil penelitian menunjukkan bahwa nilai kalor tertinggi didapatkan pada bahan 100% cangkang biji mete dengan tekanan pengepresan 15 x 106 N/m2, sedangkan laju pembakaran tidak dipengaruhi komposisi bahan dan tekanan pengepresan.
ABSTRACT
Limitations of the fuel oil causes the need for alternative energy to meet the needs of the society. Mete shell beans and rice husks are very abundant biomass is its availability to be used as an alternative fuel. In this research biopplet made to determine the calorific value and burning rate with pressure variations in material composition and pressing. Making biopplet made by mixing powder and cashew rice husk powder by comparison of 100% : 0%, 50% : 50%, 0% : 100% and pressing pressure of 5 x 106 N/m2, 10 x 106 N/m2, 15 x 106 N/m2. The Research result shows that the highes calorific value is gotten in the material 100% cashew nut shell with the press pressure 15x106 N/m2 whereas rate of combustion is not caused by the material composition and press pressure
Pengaruh Komposisi Bahan dan Tekanan Pengepresan pada Pembuatan Biopelet Terhadap Nilai Kalor Hasil Pembakaran
Get PDFKeterbatasan bahan bakar minyak menyebabkan diperlukannya energi alternatif untuk memenuhi kebutuhan masyarakat. Cangkang biji mete dan sekam padi merupakan biomassa yang ketersediaanya sangat melimpah untuk dimanfaatkan sebagai bahan bakar alternatif. Pada penelitian ini dibuat biopelet untuk mengetahui nilai kalor dan laju pembakaran dengan variasi komposisi bahan dan tekanan pengepresan. Pembuatan biopelet dilakukan dengan mencampurkan serbuk cangkang biji mete dan serbuk sekam padi dengan perbandingan 100 % : 0 %, 50 % : 50 %, 0 % : 100 % dan tekanan pengepresan 5 x 106 N/m2, 10 x 106 N/m2, 15 x 106 N/m2. Dari hasil penelitian menunjukkan bahwa nilai kalor tertinggi didapatkan pada bahan 100 % cangkang biji mete dengan tekanan pengepresan 15 x 106 N/m2
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
Application of Infrared with Different Waves and Its Effect on Organoleptic of Dairy Milk
No full textInfrared applications have been widely used to reduce microorganisms in a product and food preservation. Milk is a food product that quickly decomposes, where the changes can be observed organoleptically. This study aimed to test infrared with various wavelengths of milk and observe changes in the organoleptic of milk. The method used was that the dairy milk samples were treated with infrared (IR) exposure of 880 nm and 940 nm. Observation of the changes in milk organoleptic, namely color, taste, and smell. The effectiveness of IR 880 nm has a better ability than IR 940 nm for smell and taste, while for IR 940 nm, color is better than IR 880 nm at 1 - 4 hours, and at 5 hours with 940 nm IR it changes white-brownish
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