1,721,252 research outputs found
Fault location in distribution system based on voltage sag analysis / Muhamad Firdaus Ahmad
Get PDFFault in the distribution system is something that cannot be avoided. It is a recurring
event that occurs due to various factors such as natural occurrence, mechanism failure,
or human error. All this contributes to the phenomenon that will affect the stability of
the system and result in the loss of power to the consumers. However, such a fault is
something that happens unexpectedly, and it is difficult to be eliminated. Therefore,
various research work has been done over the years to overcome the problem. All
research is done to find the most effective method of finding the fault location in a short
time. In this thesis, a way of identifying a fault location in the distribution system by
using the voltage sag measurement is presented. The approach is to match the actual
voltage sag magnitude with the stored database from the simulated fault. Any matching
data will provide a possible fault section. Simulation result shows that it is possible to
identify the fault location based on the analysis of the voltage sags
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
Pelaksanaan dasar satu murid satu sukan dalam kalangan guru Sekolah Menengah Daerah Kluang, Johor
No full textPelaksanaan Dasar 1 Murid 1 Sukan (D1M1S) memberi fokus utama terhadap penglibatan
murid yang kurang aktif untuk turut serta dalam aktivti sukan disamping menggilap bakat
murid yang mempunyai potensi untuk dibangunkan. D1M1S dijalankan di peringkat sekolah.
Namun begitu, tahap pelaksanaan dasar tersebut dalam kalangan guru-guru sebagai golongan
pelaksana harus dikaji dan dikenalpasti bagi membantu merealisasikan matlamat D1M1S
disamping meningkatkan kualiti kerja ke tahap yang lebih tinggi. Kajian ini dijalankan
bertujuan untuk mengenalpasti tahap pelaksanaan D1M1S dalam kalangan guru-guru sekolah
menengah di daerah Kluang, Johor, perbezaan pelaksanaan D1M1S berdasarkan jantina dan
kategori sekolah serta hubungan yang ada berdasarkan elemen kemahiran, kefahaman,
komitmen dan kemudahan sukan. Faktor utama kejayaan pelaksanaan D1M1S adalah berkait
rapat dengan guru-guru sendiri sebagai golongan pelaksana. Kajian ini dijalankan terhadap
389 orang guru sekolah menengah di daerah Kluang, Johor. Data kajian yang diperoleh
melalui borang soal selidik mengandungi 36 item soalan ditadbirkan kepada sampel untuk
mengukur elemen kemahiran, komitmen, kefahaman dan kemudahan sukan. Nilai pekali
kebolehpercayaan Cronbach Alpha bagi instrumen kajian ini adalah 0.95. Data dianalisis
menggunakan analisis deskriptif (min, sisihan piawai dan frekuensi) dan analisis inferensi
(ujian-t sampel bebas). Dapatan kajian menunjukkan kefahaman guru terhadap D1M1S
berada pada tahap tinggi manakala elemen kemahiran, komitmen dan kemudahan sukan pula
berada pada tahap sederhana. Selain itu, terdapat perbezaan min pelaksanaan D1M1S secara
signifikan berdasarkan jantina guru bagi elemen kemahiran dengan nilai (p=0.00 < 0.05).
Dapatan kajian juga menunjukkan bahawa tidak terdapat perbezaan min pelaksanaan D1M1S
secara signifikan berdasarkan kategori sekolah bagi elemen kemahiran, kefahaman,
komitmen dan kemudahan sukan. Justeru, setiap guru yang terlibat dalam pelaksanaan
D1M1S di sekolah perlu memberikan usaha penuh dan sentiasa komited bagi memastikan
matlamat D1M1S tercapai
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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