1,720,991 research outputs found
Inverse dynamic load distribution identification for a passenger car tire using vibration responses
No full textsponsorship: The author gratefully acknowledges the European Commission for its support of the Marie Sklowodowska Curie program through the ETN PBNv2 project (GA 721615). (European Commission|GA 721615)status: Publishe
A Three-Dimensional Ring-Based Structural Tyre Model: Development and Validation
No full textThis paper presents the development of a structural model for passenger car tyres, based on a three-dimensional flexible ring on an elastic foundation. The ring represents the belt and the elastic foundation represents the tyre sidewall. The tyre model, which is implemented as a finite element model, is valid below the first treadband axial bending mode and includes a definition of the wheel flexibility and air cavity. The eigenfrequencies predicted by the model are within 5% of the measured eigenfrequencies. The model is validated by comparing predicted with measured responses for both an unloaded and loaded tyre.status: Publishe
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
Development of a model to stress-test the impact of climate risks on primary copper production up to 2050
No full textThe widespread concerns about climate change, as well as the major enabling factors for the transition that are required to guarantee its control, necessitate research and a tool that can provide insight into the future of copper mining.The world's copper supply is primarily concentrated in a few producing locations: Chile, Peru, Democratic Republic of the Congo, China, and Zambia. More than 50% of the supply of this metal is produced in locations with high water stress. This is a concerning issue as the process to produce copper is particularly water-intensive. Existing physical risks such as landslides, floods, fires, and dangerous amounts of heat stress are also common and so are researched in this thesis.Policy makers, governments, society, banks, and investors are monitoring the impact of climate risks on this industry. Therefore a tool to evaluate the risks on copper mining to allow the stakeholders to assess exposure to climate change has been developed in this thesis. To accurately analyse the future supply of copper, this tool specifically stress tests different standardized NGFS climate scenarios for years 2030 and 2050 for copper mines throughout the globe.The simulation revealed that climate risks are a systematic risk for copper mining companies, with roughly a 50\% of the supply being at high risk. Moreover, the findings suggest that this commodity is rather more vulnerable to transition risks than to physical risks, mainly due to the price of carbon. Furthermore, major producers in Chile and Peru must turn to seawater desalination and this will significantly raise operational costs. In addition, there are concerns over a possible labour migration to regions with food security issues which could jeopardize the skilled mining workforce, more research into this is required. The findings also indicate that countries previously regarded as unattractive locations for investment, such as Zambia and the DRC, may soon rank among the major producing nations with the lowest climatic risk exposure and the lowest industry costs. However, these ratings may be offset by these countries' higher political risks. Climate change will also affect demand. Copper is a key component of the carbon-neutral transition as numerous significant renewable technologies depend on this raw material. Furthermore, conventional copper-intensive applications such as electrical networks will also expand over the next few decades. Although investments have been pledged, it is anticipated that these will fall short of what is required to satisfy the increasing demand. The developed model is static and reflects the issue that mines would face if they kept business as usual. This provides insights on the size of effort required by miners to overcome climate risks as well as to expose how vulnerable this commodity currently is. The model has the potential to be scaled and adapted to other commodities and to other industries. Due to its modular structure assumptions and parameters can be easily updated providing versatility and robustness.Applied Earth Sciences | European Mining Cours
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