1,720,954 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
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
Analisis Kebocoran Pada Sistem Hydraulic Control Pitch Propeller Bow Thruster Di AHTS Harrier
No full textAbstrak - Control Pitch Propeller (CPP) merupakan
jenis propeller kapal yang dapat mengatur sudut bilah
propeller untuk meningkatkan efisiensi propulsi, juga
digunakan pada bow thruster untuk olah gerak kapal.
Kerusakan sistem ini, seperti yang terjadi pada AHTS
Harrier pada 7 Oktober 2022 akibat kebocoran oli, dapat
mengganggu operasi. Penelitian ini menganalisis
penyebab, dampak, dan penanganan kebocoran sistem
hidrolik CPP pada bow thruster di AHTS Harrier, serta
meningkatkan pemahaman tentang perawatan sistem
ini. Metode penelitian yang digunakan dalam skripsi ini
adalah metode kualitatif. Sumber data yang diperoleh
dari pengumpulan data primer dan sekunder. Teknik
pengumpulan data melalui observasi, wawancara, studi
pustaka dan dokumentasi. Teknik analisis data yang
digunakan dalam penelitian ini adalah metode Miles and
Huberman. Pengujian keabsahaan data dengan
menggunakan metode triangulasi. Hasil penelitian
menyatakan bahwa kebocoran pada sistem hydraulic
control pitch propeller bow thruster disebabkan oleh
kerusakan O-ring seal pada crank disk, keausan bilah
propeller, dan penurunan viskositas oli. Dampaknya
termasuk penurunan kualitas oli hidrolik, karat pada
komponen bow thruster, kerugian finansial akibat
perbaikan mahal, dan penurunan responsivitas
operasional. Penanganannya meliputi Planned
Maintenance System (PMS) sesuai jadwal, penggantian
oli hidrolik dan O-ring seal tepat waktu, serta
pengawasan kualitas oli dan tekanan untuk mencegah
keausan. Penggunaan material O-ring sesuai spesifikasi
dan pengambilan sampel oli secara rutin juga penting
untuk menjaga kinerja optimal bow thruster
Analisis Kebocoran Pada Sistem Hydraulic Control Pitch Propeller Bow Thruster di Ahts. Harrier
Full text linkABSTRAKSI
Bahtiar, Andika. NIT. 572011217598 T, 2024, “Analisis Kebocoran pada Sistem
Hydraulic Control Pitch Propeller Bow Thruster di AHTS. Harrier”,
Skripsi. Program Diploma IV, Program Studi Teknika, Politeknik
Ilmu Pelayaran Semarang, Pembimbing I: Dr. Muh. Harliman Saleh,
M.Pd., Pembimbing II: Mohammad Sapta H, M.Si.
Control Pitch Propeller (CPP) merupakan jenis propeller kapal yang dapat
mengatur sudut bilah propeller untuk meningkatkan efisiensi propulsi, juga
digunakan pada bow thruster untuk olah gerak kapal. Kerusakan sistem ini,
seperti yang terjadi pada AHTS Harrier pada 7 Oktober 2022 akibat kebocoran
oli, dapat mengganggu operasi. Penelitian ini menganalisis penyebab, dampak,
dan penanganan kebocoran sistem hidrolik CPP pada bow thruster di AHTS
Harrier, serta meningkatkan pemahaman tentang perawatan sistem ini. Metode
penelitian yang digunakan dalam skripsi ini adalah metode kualitatif. Sumber
data yang diperoleh dari pengumpulan data primer dan sekunder. Teknik
pengumpulan data melalui observasi, wawancara, studi pustaka dan
dokumentasi. Teknik analisis data yang digunakan dalam penelitian ini adalah
metode Miles and Huberman. Pengujian keabsahaan data dengan
menggunakan metode triangulasi. Hasil penelitian menyatakan bahwa
kebocoran pada sistem hydraulic control pitch propeller bow thruster
disebabkan oleh kerusakan O-ring seal pada crank disk, keausan bilah
propeller, dan penurunan viskositas oli. Dampaknya termasuk penurunan
kualitas oli hidrolik, karat pada komponen bow thruster, kerugian finansial
akibat perbaikan mahal, dan penurunan responsivitas operasional.
Penanganannya meliputi Planned Maintenance System (PMS) sesuai jadwal,
penggantian oli hidrolik dan O-ring seal tepat waktu, serta pengawasan kualitas
oli dan tekanan untuk mencegah keausan. Penggunaan material O-ring sesuai
spesifikasi dan pengambilan sampel oli secara rutin juga penting untuk
menjaga kinerja optimal bow thruster
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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