1,720,955 research outputs found
Rancang Bangun Alat Mesin Tempa Pandai Besi Sistem Hammer Kapasitas 14 Kg
Get PDFTempa besi merupakan proses pengolahan logam dengan perubahan bentuk
dalam keadaan panas dengan sistem pukulan secara terus menerus. Dari pengamatan
di lapangan terhadap home industri pandai besi yang ada di Desa Berancah
Kecamatan Bantan Kabupaten Bengkalis. Pada umumnya mereka melakukan proses
penempaan manual.Dalam satu hari permintaan konsumen bisa mencapai kurang
lebih 13 permintaan dari yang meminta membuat parang, pisau deres, pisau dapur,
golok, pacul dan lain lain. Dari hasil yang dilakukan pada alat mesin tempa pandai
besi system hammer kapasitas 14 Kg/jam dengan dua kali percobaan maka
didapatkan hasil yang memuaskan dengan terjadinya 150+ pukulan dalam jangka
waktu satu menit dan torsi penempaannya adalah 47,88 sudah sesuai dengan
kebutuhan mesin tempa pandai besi terdapat berkurangnya benda kerja dari 16 mm
setelah penempaan menjadi 14 mm dengan waktu satu menit putaran 2000 Rpm.
Terkait system penggerak mesin tempa pandai besi ini menggunakan mesin robin
6,6 Hp (4847 watt) sebagai daya penggeraknya dengan putaran maksimal 4000 Rpm
dengan menggunakan 4 pulli yakni pulli 4 inci pada mesin robin pada poros
penghubung menggunakan pulli 3 inchi dan pada poros roda gila menggunakan pulli
12 inch
Rancang Bangun Alat Mesin Tempa Pandai Besi Sistem Hammer Kapasitas 14 Kg
Get PDFTempa besi merupakan proses pengolahan logam dengan perubahan bentuk dalam keadaan panas dengan sistem pukulan secara terus menerus. Dari pengamatan di lapangan terhadap home industri pandai besi yang ada  di Desa Berancah Kecamatan Bantan Kabupaten Bengkalis. Pada umumnya mereka melakukan proses penempaan manual.Dalam satu hari permintaan konsumen bisa mencapai kurang lebih 13 permintaan dari yang meminta membuat parang, pisau deres, pisau dapur, golok, pacul dan lain lain. Dari hasil yang dilakukan pada alat mesin tempa pandai besi system hammer kapasitas 14 Kg/jam dengan dua kali percobaan maka didapatkan hasil yang memuaskan dengan terjadinya 150+ pukulan dalam jangka waktu satu menit dan torsi penempaannya adalah 47,88 sudah sesuai dengan kebutuhan mesin tempa pandai besi terdapat berkurangnya benda kerja dari 16 mm setelah penempaan menjadi 14 mm dengan waktu satu menit putaran 2000 Rpm. Terkait system penggerak mesin tempa pandai besi ini menggunakan mesin robin 6,6 Hp (4847 watt) sebagai daya penggeraknya dengan putaran maksimal 4000 Rpm dengan menggunakan 4 pulli yakni pulli 4 inci pada mesin robin pada poros penghubung menggunakan pulli 3 inchi dan pada poros roda gila menggunakan pulli 12 inch
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
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