1,720,959 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 Implementasi Power Wireles Transfer Menggunakan Rangkaian Royyer Oscilator
No full textPenggunaan wireless saat ini tidak lagi hanya bisa mengirim data atau file,
pengiriman daya atau perpindahan energi bisa diterapkan menggunaan sistem
tenologi jaringan nirkabel atau lebih dikenal sebagai wireless energy transfer. Tujuan
penelitian mengimplementasikan wireless power transfer(WPT)dalam bentuk
prototipe dengan memanfaatkan rangkaian royer oscillator sebagai modul utamanya.
Beban yang digunakan berbentuk lampu hemat energi dengan variasi 5 watt dan 4
buah lampu 12 watt. Pengamatan dilakukan pada nilai kapasitor dan jarak antar
pemancar dan penerima yang bervariasi. Untuk menyalakan beban secara maksimal
(beban digunakan lampu 12 watt sebanyak 4 lampu dengn total beban 48 W), WPT
dhubungkan ke USB 5V, dan terhubung ke baterai dan rangkaian booster converter.
Sistem WPT juga menggunakan baterai, USB tipe 4056, sebagai bentuk alternatif dari
(uninterruptible power supply) UPS sistem. Hasil penelitian menjelaskan bahwa pada
jarak 25 cm dengan menggunaan input 10,8 VAC, dengan arus keluaran dari
transmitter sebesar 0,03 A, dan perubahaan nilai kapasitor 15 nf/100v x 14 C pada
bagian transmitter (coil transmitter lebih besar dari coil receiver). Pemasangan tiap
tiap kapasitor dengan jarak 25 cm, memberi dampak peningkatan nilai maksimal,
dengan tegangan 10.7 VAC, arus 0.03 A, dan penurunan freq 398.4 kHz. Sedangkan
untuk jarak 35 cm juga mendapatkan nilai maksimal tegangan 7,4 V, arus 0.03 A, dan
penurunan frequensi 174,5 Khz. Efisiensi terbesar pada kedua jarak tersebut didapat,
25cm =99.0% dan 35cm =68.6%. Dengan beban lampu 5 watt sebagai indikator,
dimana jumlah besar nilai kapasitansi yang dipasang mempengaruhi jarak dan
kecerahan lampu indikator. WPT dihubungkan ke USB 5V, dan terhubung ke baterai
dan rangkaian booster converter, sehingga jarak 35 cm, didapat input tegangan 2.1
dan keluaran tegangan 77 V, dengan daya keluaran 10,01 W, arus 0.03 A, dan
persentasi perbandingan daya tertinggi 4534, 3%. Dengan penggunaan baterai 7,4 V
pada booster converter maka sistem mampu melayani beban sebesar 48 Watt dengan
jarak pengisian (charging) sejauh lebih dari 35 cm.Wireless usage can no longer send data or files power delivery or energy transfer can be applied using the system wireless networking or better known as wireless energy transfer. The research objective implements wireless power transfer (WPT) within shape prototype by utilizing royer oscillator circuit as its main module.The load used in the form of energy saving lamp with variation 5 watt and 4 lamp 12 watt. Observations were made on the capacitor values and the distances between the various transmitters and receivers. To maximize the load (12 watt lamps are used with a total of 48 W), the WPT is connected to a USB 5V, and connected to a battery and a booster converter circuit. The WPT system also uses a battery, USB type 4056, as an alternative form of (uninterruptible power supply) UPS systems. The results explained that at a distance of 25 cm with use of input 10.8 V from transformer 5A and change the capacitor value of 15nF / 100v x 14 C on the transmitter (coil transmitter greater than coil receiver). Installation of each capacitor with a distance of 25 cm, gives the effect of increasing the maximum value, with a voltage of 11 V, current 0.03 A, and a decrease in freq 398.4 kHz. While for a distance of 35 cm also get a maximum voltage value 7,4 V, current 0.03 A, and decreased frequency 174,5 kHz. the greatest efficiency at both distances is obtained, = 99.0% and = 68,6%. With a 5 watt lamp load as an indicator, where the large amount of installed capacitance values affects the distance and brightness of the indicator light. WPT is connected to USB 5V, and connected to battery and booster converter circuit, so 35 cm distance, obtained input voltage 2.1 v and output voltage of 77 V, with output power of 10.01 W, current 0.13 A, and percentage increase in power 4534,3%. With the use of 7,4 V battery and booster converter then the system is able to serve 48 Watt load with a charging distance of 35 cm.Tesis Magiste
Analisis Implementasi Power Wireles Transfer Menggunakan Rangkaian Royyer Oscilator
No full textPenggunaan wireless saat ini tidak lagi hanya bisa mengirim data atau file,
pengiriman daya atau perpindahan energi bisa diterapkan menggunaan sistem
tenologi jaringan nirkabel atau lebih dikenal sebagai wireless energy transfer. Tujuan
penelitian mengimplementasikan wireless power transfer(WPT)dalam bentuk
prototipe dengan memanfaatkan rangkaian royer oscillator sebagai modul utamanya.
Beban yang digunakan berbentuk lampu hemat energi dengan variasi 5 watt dan 4
buah lampu 12 watt. Pengamatan dilakukan pada nilai kapasitor dan jarak antar
pemancar dan penerima yang bervariasi. Untuk menyalakan beban secara maksimal
(beban digunakan lampu 12 watt sebanyak 4 lampu dengn total beban 48 W), WPT
dhubungkan ke USB 5V, dan terhubung ke baterai dan rangkaian booster converter.
Sistem WPT juga menggunakan baterai, USB tipe 4056, sebagai bentuk alternatif dari
(uninterruptible power supply) UPS sistem. Hasil penelitian menjelaskan bahwa pada
jarak 25 cm dengan menggunaan input 10,8 VAC, dengan arus keluaran dari
transmitter sebesar 0,03 A, dan perubahaan nilai kapasitor 15 nf/100v x 14 C pada
bagian transmitter (coil transmitter lebih besar dari coil receiver). Pemasangan tiap
tiap kapasitor dengan jarak 25 cm, memberi dampak peningkatan nilai maksimal,
dengan tegangan 10.7 VAC, arus 0.03 A, dan penurunan freq 398.4 kHz. Sedangkan
untuk jarak 35 cm juga mendapatkan nilai maksimal tegangan 7,4 V, arus 0.03 A, dan
penurunan frequensi 174,5 Khz. Efisiensi terbesar pada kedua jarak tersebut didapat,
25cm =99.0% dan 35cm =68.6%. Dengan beban lampu 5 watt sebagai indikator,
dimana jumlah besar nilai kapasitansi yang dipasang mempengaruhi jarak dan
kecerahan lampu indikator. WPT dihubungkan ke USB 5V, dan terhubung ke baterai
dan rangkaian booster converter, sehingga jarak 35 cm, didapat input tegangan 2.1
dan keluaran tegangan 77 V, dengan daya keluaran 10,01 W, arus 0.03 A, dan
persentasi perbandingan daya tertinggi 4534, 3%. Dengan penggunaan baterai 7,4 V
pada booster converter maka sistem mampu melayani beban sebesar 48 Watt dengan
jarak pengisian (charging) sejauh lebih dari 35 cm.Wireless usage can no longer send data or files power delivery or energy transfer can be applied using the system wireless networking or better known as wireless energy transfer. The research objective implements wireless power transfer (WPT) within shape prototype by utilizing royer oscillator circuit as its main module.The load used in the form of energy saving lamp with variation 5 watt and 4 lamp 12 watt. Observations were made on the capacitor values and the distances between the various transmitters and receivers. To maximize the load (12 watt lamps are used with a total of 48 W), the WPT is connected to a USB 5V, and connected to a battery and a booster converter circuit. The WPT system also uses a battery, USB type 4056, as an alternative form of (uninterruptible power supply) UPS systems. The results explained that at a distance of 25 cm with use of input 10.8 V from transformer 5A and change the capacitor value of 15nF / 100v x 14 C on the transmitter (coil transmitter greater than coil receiver). Installation of each capacitor with a distance of 25 cm, gives the effect of increasing the maximum value, with a voltage of 11 V, current 0.03 A, and a decrease in freq 398.4 kHz. While for a distance of 35 cm also get a maximum voltage value 7,4 V, current 0.03 A, and decreased frequency 174,5 kHz. the greatest efficiency at both distances is obtained, = 99.0% and = 68,6%. With a 5 watt lamp load as an indicator, where the large amount of installed capacitance values affects the distance and brightness of the indicator light. WPT is connected to USB 5V, and connected to battery and booster converter circuit, so 35 cm distance, obtained input voltage 2.1 v and output voltage of 77 V, with output power of 10.01 W, current 0.13 A, and percentage increase in power 4534,3%. With the use of 7,4 V battery and booster converter then the system is able to serve 48 Watt load with a charging distance of 35 cm.Tesis Magiste
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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