1,722,009 research outputs found
Profiency testing : Prall-method EN 12697–16:2016
No full textDenna provningsjämförelse har främst utförts för att bedöma om de förändringar som införts i den senaste versionen av Prallstandarden, EN 12697–16:2016, har förbättrat precisionen i metoden. 22 laboratorier har deltagit, 16 svenska och 6 laboratorier från övriga nordiska länder, där dubbtrafik förekommer. Resultaten visar att spridningarna i resultat mellan de olika laboratorierna ligger på ungefär samma nivå som vid tidigare ringanalyser trots att åtgärder vidtagits för att förbättra precisionen i metoden.This profiency testing has mainly been carried out to assess whether the changes introduced in the latest version of the Prall Standard, EN 12697–16: 2016, has improved the precision of the method. 22 laboratories participated, 16 Swedish and 6 from other Nordic countries, where the studded tires occur. The results show that the spread in the results between different laboratories is around the same level as in previous round Robin tests despite measures taken to improve the precision of the method
Provningsjämförelse [Elektronisk resurs] : Prallmetoden EN 12697-16:2016
No full textDenna provningsjämförelse har främst utförts för att bedöma om de förändringar som införts i den senaste versionen av Prallstandarden, EN 12697–16:2016, har förbättrat precisionen i metoden. 22 laboratorier har deltagit, 16 svenska och 6 laboratorier från övriga nordiska länder, där dubbtrafik förekommer. Resultaten visar att spridningarna i resultat mellan de olika laboratorierna ligger på ungefär samma nivå som vid tidigare ringanalyser trots att åtgärder vidtagits för att förbättra precisionen i metoden.This profiency testing has mainly been carried out to assess whether the changes introduced in the latest version of the Prall Standard, EN 12697–16: 2016, has improved the precision of the method.22 laboratories participated, 16 Swedish and 6 from other Nordic countries, where the studded tires occur. The results show that the spread in the results between different laboratories is around the same level as in previous round Robin tests despite measures taken to improve the precision of the method.</p
The influence of recycled asphalt pavement on 20mm binder course mix performance
No full textPaper presented at the 3rd National Symposium on Bridge and Infrastructure Research in Ireland, Dublin, 2006 and at ICAP (International Conference on Asphalt Pavements) conference Quebec, Canada, 2006This paper presents the results of ongoing research on the mechanical performance of a 20mm binder course asphalt pavement mix incorporating recycled asphalt pavement (RAP). A series of binder course mixes were designed containing varying percentages of RAP. A mix made only from virgin material was selected as the control mix for the investigation. The effect of introducing RAP into the binder course mix was evaluated through a series of laboratory tests
including the Marshall Test, Indirect Tensile Stiffness Modulus Test, Indirect Tensile Fatigue Test and Water Sensitivity Test. A Circular Wheel Track (CWT) was developed in order to study the dynamic effects of a rolling wheel travelling over an asphalt pavement. The CWT was commissioned within a temperature controlled room along with a customised Data Acquisition
(DAQ) system. The system involves the testing of rectangular slabs and allows for the investigation of the dynamic tensile strain. The dynamic tensile strain is digitally recorded and the loading effect assessed. The laboratory tests have shown that the introduction of RAP to the binder course mix resulted in an improvement in all mechanical properties. This was also observed in the dynamic tensile strain test.Other funderEnterprise Ireland (ATRP)Conference website no longer available. Conference organiser's website - http://www.bcri.ie/site/view/33/. DG 06/07/10
ti ke SB. 23/7/1
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
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