1,720,967 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
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
RADIOGRAPHIC EXAMINATION OF PRESSURED PARTS FOR HEAT RECOVERY STEAM GENERATOR
Full text linkA larger Nuclear Power Generation and Non Nuclear Power Generation are shipped to the job sites in various stages of fabrication and subassembly. Welding and welding related processes are central to Power Generation component fabrication and assembly in the site. This papers presents some results of the investigation that was carried out to examine the welding results of the site construction of Heat Recovery Steam Generator Piping of Tanjung Priok Gas Fired Power Plant Extension Project (740 MW) using the Radiography Test Method based on the ASME Standard. From this investigation it could be concluded that there was no crack founded in the selected specimens of the piping. The rejectable Incomplete Penetration was found in the Hot Reheat Steam Piping HRSG1. Some Porosities and Slag Inclusion are rejected because their size and length are longer than acceptable value limits, therefore should be repaired. However some of the results are accepted and no need to be repaired. The rejected Worm Holes is found on IP Super Heater Inlet Piping of HRSG1 whereas the undercut occurred on HP Steam Drum of HRSG. Keywords: Welding, radiographic examination, steam piping, HRSG Pembangkit Listrik Tenaga Nuklir dan Pembangkit Listrik Non Tenaga Nuklir yang berkapasitas besar dikirim ke lokasi pekerjaan dalam berbagai tahap fabrikasi dan sub perakitan. Pengelasan dan proses pengelasan yang berhubungan dengan komponen pembangkit merupakan inti dari fabrikasi dan perakitan di lokasi pembangkit. Tulisan ini menampilkan beberapa hasil pengkajian yang dilakukan untuk mengevaluasi hasil pengelasan pipa HRSG yang dikonstruksi dilokasi dari ”Tanjung Priok Gas Fired Power Plant Extension Project (740 MW)” dengan menggunakan Metoda pengetesan Radiografi yang didasarkan pada Standar ASME. Dari investigasi ini dapat disimpulkan bahwa tidak ditemukan adanya “crack” pada benda-benda uji yang terpilih. Ditemukan Incompele Penetration yang ditolak pada Hot Reheat Steam Piping HRSG1. Beberapa Porositi dan Slag Inclusion ditolak karena besar dan panjangnya lebih panjang dari batasan-batasan nilai yang diijinkan oleh karena itu harus diperbaiki. Akan tetapi beberapa hasil pengkajian diterima dan tidak perlu diperbaiki. Pada IP Super Heater Inlet Piping dari HRSG1ditemukan beberapa Worm Hole yang tidak memenuhi kriteria sedangkan Undercut yang ditolak terjadi pada HP Steam Drum dari HRSG. Kata Kunci : Las, pengkajian, radiografi, pipa uap , HRS
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
LIFE ASSESSMENT OF STEAM TURBINE – THE MICROSTRUCTURE AND GRAIN SIZE OBSERVATION OF TURBINE CASING
Full text linkABSTRACT Life Assessment of Steam Turbine – the Microstructure and Gain size observation of turbine casing.This papers presents some results of the life assessment of steam turbine - the microstructure and gain size observation of turbine casing. The measurement of mechanical properties, the microstructure as well as the material composition of turbine casing have been performed. The chemical composition is found that both the lower and the upper casings are conforms to JIS G 5151 class SCPH 21. From the microstructure observation it could be confirmed that the microstructures consist of ferrite dominantly (white) and some of pearlite (dark), which is classified as Cr-Mo steel according to JIS G5151 class SCPH 21.It is also found that lower casing have smaller grain size (higher grain size number) than the upper casing . Keywords: Life assessment, steam turbine, turbine casing, microstructure, chemical composition and hardness. ABSTRAK Pengkajian umur Turbin Uap – Pengamatan Mikrostruktur dan ukuran butir dari rumah turbin. Tulisan ini menampilkan beberapa hasil dari pengkajian umur turbin uap–observasi mikrostruktur, ukuran butir rumah turbin uap. Pengukuran sifat mekanis, mikrostruktur dan lomposisi kimia dari rumah turbin uap telah dilakukan. Komposisis kimia dari rumah turbin sebelah bawah dan sebelah atas keduanya sesuai dengan JIS G 5151 class SCPH 21. Dari pengamatan mikrostruktur dapat dikonfirmasi bahwa mikrostruktur terdiri dari dominant Ferrite dan sebagian pearlite yang dapat diklasifikasi sebagai baja Cr-Mo berdasarkan JIS G 5151 class SCPH 21. Dari pengkajian ini didapat juga bahwa rumah turbin sebelah bawah mempunyai ukuran butir yang lebih kecil dibandingkan dengan rumah turbin bahagian atas. Kata Kunci : Pengkajian umur ,turbin uap, rumah turbin, mikrostruktur, komposisi kimia, kekerasa
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