1,721,010 research outputs found
Modeling and Analysis of Multilayer Complex Distribution System: A Multi-Agent Simulation for Decision Making
No full textIn the context of emerging distribution system with large penetration of distributed generation and storage from prosumers, we consider the distribution system as a multi-layers interacting complex system. The complexity of the system, characterized by several interacting layers fit in the context of physical (network), cyber, social and natural environment, cannot be captured by closed form mathematical models and new approaches derived from complex sciences, as Multi Agent Simulation (MAS), will be employed for developing proper tools. Based on MAS, where individual arbitrariness and realities can be represented almost as in detail as designers want, complex decision making problems encountered in the emerging distribution system can be implemented, learned, and evaluated through predesigned MAS models; evolutions of complex multilayer system and interactions inside can be captured with utmost concretes. Future projections such as emerging distribution system can be simulated ex-ante; perplexities that may arouse can be diagnosed and even resolved in advanc
Market-based control in emerging distribution system operation
No full textIn emerging electrical distribution systems, a multitude of self-interested individual decision makers interacts among themselves and with the power grid. The optimal operation of the grid, according to a set of predefined technical and economic targets, can be achieved by influencing the behaviors of the decision makers with appropriate market signals. The technical feasibility and performance of the system, for example, in terms of line flow limits, network losses, and appropriate voltage profile, can thus be controlled to a certain extent, by market signals. In this paper, we present a conceptual framework for 'Market-based Control' for the operation of emerging distribution systems. Characterized by distributed and adaptive control signals over prosumers, market-based control needs to make prosumer benefits aligned with regulator/DSOs concerns, thus satisfying the requirements from both sides. By applying market-based control in network charging, both network and market performances can be improved. The complexity in the environment and in the interactions among players prompt techniques to be derived from complex systems theory. A multiagent model was built up for testing the market control strategies strategy. The concept and applications are illustrated with reference to a standard CIGRE medium-voltage distribution networ
Paths Toward Smart Energy: A Framework for Comparison of the EU and China Energy Policy
No full textAbstract—National decisions and behaviors are strictly interdependent and each of them may affect the whole planet; hence, the harmonization and coordination of the policy are key issues. Particularly in the energy sector, where scarce resources, presently unevenly shared by the various nations with possible arising of conflicts, need to be allocated to keep the pace with economic growth and in a manner compatible with the preservation of the environment. In this paper we use the concept of “Smart Energy”as a way to embrace the target to meet commitments to the worlds sustainability, and a comparison of the energy policies of two key-world players the EU and China is undertaken in this context. A framework for quantitatively assessing effectiveness of various specific policy tools is proposed. The policies are defined and analyzed with reference to the general goals, the tools to pursue those goals and their outcomes, possibly in a quantitative manner resorting to a set of meaningful metrics.JRC.F.3 - Energy Security, Systems and Marke
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
- …
