1,721,020 research outputs found
Optimizing WPT Receivers for Enhanced Performance and Cost Efficiency in Electric Vehicles
No full textWireless power transfer is one of the most interesting technologies in transportation. Resonant inductive power transfer would allow electric vehicles to be recharged wirelessly and dynamically. As new vehicle models come onto the market, it will be important to ensure that vehicles are equipped with optimised receivers that get catch the desired power and minimise the use of materials. The distance between the transmitter and receiver has a major impact on the amount of power that can be transmitted. To address that, this paper proposes a model to study the optimisation of receivers mounted on electric vehicles, allowing optimised power reception for taller vehicles such as SUVs and saving up to 4% and 3% of receiver costs for sports cars and utility vehicles respectively. The implemented model will also be replicable and scalable in other contexts to certify the optimal sizing of vehicle mounted receivers
Optimized Electric Vehicles Wireless Charging: Applicative Models for Supporting Decision Makers
No full textWireless Power Transfer is one of the most promising technologies in the private transport sector. With the large-scale deployment of electric vehicles for decarbonization policies, the number of charging stations to be deployed will increase and may not be sufficient for the service, causing network instability. The use of wireless charging in urban and highway contexts could facilitate the service by reducing the network peaks associated with DC fast charging stations. This paper guides a decision-maker interested in implementing wireless charging models in urban and highway contexts. The work proposes an optimization algorithm for each context and identifies outputs for 3 different car models with different heights above the ground (0.10 m, 0.20 m and 0.30 m). This will allow to identify 3 optimized scenarios for wireless charging for each model. A sensitivity analysis will show the percentage improvement in performance as the number of transmitters is increased. In the urban model, it will be possible to increase the energy charged per stop by up to 4.2% by varying between the minimum and maximum number of transmitters. In the highway model, it will be possible to increase the recharged energy in a 1 km section by up to 26.5% by varying the number of transmitters between the 3 optimal configurations obtained. These results can provide a quantitative guide for decision-makers wishing to implement a wireless charging system in the two contexts analyzed
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
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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