1,720,960 research outputs found
Effects of ATF cladding properties on PWR responses to an SBO accident: A sensitivity analysis
No full textTo investigate the effects of ATF cladding properties on the plant responses to severe accidents, shortterm station blackout simulations and sensitivity analyses on hypothetical cladding materials were performed using MAAP code. For sensitivity analyses, 7 hypothetical cladding materials were used. Hypo-0 was the reference cladding whose properties are anticipated to show the poorest fuel performance during an STSBO. The input property values for Hypo-1 through Hypo-6 were selected by changing each variable independently while keeping the others at their reference values. The onset times for core uncovery and cladding oxidation were similar for all the simulation cases, implying that single property cannot affect the event times. A main conclusion is that a large enthalpy of cladding can delay the increase in temperatures of fuel and cladding by playing a role as a heat sink after the core uncovery occurs, resulting in the delayed hot leg rupture. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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
Dental Technology Services and Industry Trends in New Zealand
Get PDFObjective: This cross-sectional survey provides a snapshot of the New Zealand dental technology industry and identifies the range and cost of dental laboratory services.
Background: Developing an understanding on the commercial dental laboratories environment can provide insight into the entire dental industry and help identify factors that influence the industry.
Method: Two main questionnaires were used targeting dental laboratory owners and dental technician employees. The dental laboratory owners’ questionnaire had six sections (demographics, workforce information, services provided, revenue, and personal opinion). The dental technician employees’ survey consisted of three sections covering: demographics, workforce information and personal opinion. A web-based survey was the primary method for data collection. Categorical variables were tested for significance using SPSS statistical software (Version 19.0; SPSS Inc., Chicago, USA) with an alpha level of 0.05.
Results: Twenty six (41.3%) of responding dental laboratories use services from other New Zealand dental laboratories, 14 (22.2%) were using offshore laboratories. In 2010, over half of responding dental laboratories (19; 55.9%) made more than $250,000 annually. Clinical dental technicians are earning the highest hourly rate and removable prostheses were the most common dental laboratory services in New Zealand. The main reason provided for attrition of dental clients was due to them leaving the country, retirement or death.
Conclusion: There are multiple factors influencing the dental technology industry. Clinical dental technology appears to be prospering and while facing difficulties, the dental technology industry is adapting and still viable
Dental Technology Services and Industry Trends in New Zealand
No full textObjective: This cross-sectional survey provides a snapshot of the New Zealand dental technology industry and identifies the range and cost of dental laboratory services.
Background: Developing an understanding on the commercial dental laboratories environment can provide insight into the entire dental industry and help identify factors that influence the industry.
Method: Two main questionnaires were used targeting dental laboratory owners and dental technician employees. The dental laboratory owners’ questionnaire had six sections (demographics, workforce information, services provided, revenue, and personal opinion). The dental technician employees’ survey consisted of three sections covering: demographics, workforce information and personal opinion. A web-based survey was the primary method for data collection. Categorical variables were tested for significance using SPSS statistical software (Version 19.0; SPSS Inc., Chicago, USA) with an alpha level of 0.05.
Results: Twenty six (41.3%) of responding dental laboratories use services from other New Zealand dental laboratories, 14 (22.2%) were using offshore laboratories. In 2010, over half of responding dental laboratories (19; 55.9%) made more than $250,000 annually. Clinical dental technicians are earning the highest hourly rate and removable prostheses were the most common dental laboratory services in New Zealand. The main reason provided for attrition of dental clients was due to them leaving the country, retirement or death.
Conclusion: There are multiple factors influencing the dental technology industry. Clinical dental technology appears to be prospering and while facing difficulties, the dental technology industry is adapting and still viable
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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