1,721,094 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
Implicit demand side flexibility as an alternative to investments in the transmission grid
No full textThe energy system is undergoing a significant transition to fulfil the climate goals and reduce emissions from fossil fuels. Energy demand, currently met by fossil fuels, must be replaced on a large scale by electricity. Simultaneously, the electricity generation must shift to renewable sources such as wind and solar power. This development necessitates a capacity increase of the electrical transmission grid to accommodate the increased electricity demand and to integrate renewable generation. Moreover, the intermittent nature of renewable electricity generation may lead to periods when supply is not able to meet demand. Both challenges can be mitigated by demand side flexibility. A promising approach is implicit demand flexibility which involves end users responding to price signals from energy markets, variable grid tariffs, or demand response programmes. This approach helps to reduce demand peaks and aids in balancing renewable electricity generation. When incorporated in grid planning, it can also alleviate the need for grid reinforcement.
Existent literature proves that smaller consumers, particularly households, do react to price signals by adjusting their electricity demand. However, the implicit demand response observed exhibits considerable variations across different studies, as it is influenced by various factors. Despite the existence of extensive research investigating these factors, particularly the effect of price signal design features, the impacts of many factors remain uncertain. Existing literature provides compelling evidence that automatic price response significantly enhances the achievable demand response compared to manual response. Nevertheless, concerns have been raised that automatic load shifting could potentially create a new and even higher peak demand.
This thesis aims to provide a more profound understanding of implicit demand response within the Norwegian context and its potential to reduce grid investments by incentivising a lower peak demand. The research covers various price signals, including electricity spot prices, dynamic grid tariffs, and a critical peak rebate demand response programme. A significant share of this research examines how households react to varying electricity prices. A large-scale field experiment with accompanying surveys was conducted to analyse the demand response to electricity prices as they may occur in the future. Additionally, the price response in real-world situations is investigated. The thesis assesses also various dynamic grid tariff designs and their theoretical potential to decrease the peak load in the grid by simulating demand response with real electricity consumption data.
The conducted research indicates that Norwegian households are responsive to hourly price signals, as evidenced by the observed reductions in electricity consumption during peak hours. The residential demand response was primarily manual, rather than automatic. However, the manually performed price response may not be substantial enough to lead to a relevant reduction in grid congestions or to balance large-scale renewable electricity generation. Automatic controlled smart charging of electric vehicles resulted in a higher price response. Thus, in a future scenario with more automatic demand response, a larger reduction of the peak demand may be achievable. The analysis of dynamic grid tariffs suggests that tariffs should be based on the grid peak, rather than the individual customer peaks, as it is currently implemented in most Norwegian distribution grid tariffs. This would allow for a significantly enhanced impact on the grid’s peak load.
The findings of this thesis contribute to harness the potential of implicit demand flexibility, enhance its potential, and monitor its development in Norway. If these findings are considered in the grid development process, they could facilitate earlier connections of new demand customers to the grid and enable a cost-efficient reinforcement of the grid
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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