1,721,020 research outputs found
Análisis comparativo del nuevo mercado de derivados financieros de energía en Colombia con otros mercados internaciones de electricidad, problemas potenciales y posibles soluciones
Get PDFLa industria eléctrica desde sus primeros años de funcionamiento a nivel mundial era una industria que se caracterizaba por ser un sector que era fragmentado y disperso, luego por la presencia de las economías de escala esta industria pasa a convertirse en monopolio y de propiedad estatal. En los años 80s, este sector introduce a este mercado las ideas de Adam Smith, con la incorporación de la teoría de la mano invisible y la disputabilidad de mercados. En Colombia con la introducción de las leyes 142 y 143 de 1994 abre las puertas a una restructuración al mercado eléctrico del país. Para disminuir y administrar el riesgo financiero de este mercado energético colombiano abre las puertas al mercado de derivados de energía con la introducción del Derivex en el 2010, donde los productos negociados serán un derivado con subyacente electricidad, Futuro de electricidad mensual, el cual permitirá a los agentes realizar una mejor gestión del riesgo financiero, generado por la exposición al precio de la electricidad, y aumentar las oportunidades de inversión. En este documento se buscaran variables principales de los diferentes mercados principales del mundo con el fin de hacer los análisis comparativos entre los mercados, abordando así a la pregunta, ¿El diseño del Derivex es apropiado para la estructura del mercado eléctrico colombiano considerando las experiencias internacionales? Para el desarrollo de este documento se trabajó bajo una metodología donde la cual se describe en un primer ítem que fue en estudiar y analizar los mercados de derivados financieros de energía en las estructuras de mercados en otros países y como segundo ítem en comparar funcionamientos, modelos, estructuras y características principales de los mercados internacionales vs el colombiano. Como conclusión de este documento la estructura que plantea el Derivex está alineado con la evolución y comportamiento del mercado eléctrico ya que el mercado eléctrico Colombiano tiene las bases para afrontar el nuevo mercado de derivados financieros de energía, en lo personal hay que tomar medidas en lo que hace referencia como posibles problemas potenciales que podría conllevar este nuevo mercado que se analizan en este documento./Abstract. The electrical industry since its early years of worldwide industry that was characterized as a sector that was fragmented and dispersed, then the presence of economies of scale this industry goes on to become state-owned monopoly. In the 80s, the sector entered this market ideas of Adam Smith, with the incorporation of the theory of the invisible hand and the contestability of markets. In Colombia, with the introduction of laws 142 and 143 of 1994 opens the door to restructuring the electricity market in the country. To reduce and manage the financial risk of the Colombian energy market opens up the energy derivatives market with the introduction of Derivex in 2010, where products are traded underlying a derivative with electricity, future monthly electricity, which will allow agents to better manage financial risk generated by exposure to electricity prices and increase investment opportunities. This paper will seek major variables of the different major world markets in order to make comparative analysis between markets, thereby addressing the question whether the Do Derivex design is appropriate for the Colombian electricity market structure considering international experiences? For the development of this document where he worked under a methodology which is described in the first item was to study and analyze the financial derivatives markets in energy market structures in other countries and as a second item to compare performances, models , structures and features of international markets vs Colombia. In concluding this paper the structure posed Derivex is aligned with the evolution and behavior of the electricity market since the Colombian electricity market is the foundation to meet the new market for energy derivatives, personally have to take steps in referred to as potential problems that could lead this new market are discussed in this document.Maestrí
Eficiencia energética: alternativa de transformación para una empresa de generación de energía con un enfoque de sostenibilidad, competitividad, productividad y de responsabilidad por el medio ambiente, caso de estudio central hidroeléctrica San Carlos - Colombia
Get PDF.Una de las formas que ayuda a mitigar el cambio climático es transformar la manera en cómo la energía se produce, se distribuye y se consume. Las ineficiencias operacionales en el proceso de transformación energética no solo se ven en el uso final sino también en los centros de producción de energía eléctrica, que son focos importantes de mejora en el uso de la energía. En la revisión del estado del arte no se logra evidenciar casos específicos en donde se haya estructurado y aplicado una metodología para el desarrollo de una gestión integral energética (GIE), o un modelo organizado que ayude a la optimización de la demanda energética en el proceso de generación, hay casos particulares de éxito solo con mejoras tecnológicas. Para el caso de la central San Carlos se desea implementar una metodología basada en la norma ISO 50001 con una mirada transversal a toda la cadena productiva del proceso de generación de energía, desde la óptica cultural en eficiencia energética, implementación en cambios tecnológicos y la construcción del modelo matemático que representa los comportamientos de los consumos energéticos asociados y no asociados a la generación de energía, con el objetivo de obtener teóricamente por metodologías de optimización los mejores indicadores de desempeño energético. Se espera obtener con el trabajo aportes como el modelo matemático simulado en MATLAB que se pueda aplicar a centrales de las mismas características, una propuesta a la regulación eléctrica colombiana de regular los consumos de los centros productivos a través de indicadores energéticosAbstract: One of the ways to help mitigate climate change is to transform the way we can produce, distribute and consume. The operational inefficiencies in the process of energy transformation are not only seen in the final use but also in the centers of electric power production, which are important foci of the improvement in the use of power. In the review of the state of the art however, there is no organized model that helps the optimization of the energy demand in the Generation process, only random success with technological improvements. In the case of the San Carlos plant, a methodology based on ISO 50001 with a transversal view of the entire production chain of the energy generation process, of cultural optics in energy efficiency, implementation of technological changes and the construction of the mathematical model that Represents the behavior of the energy consumptions associated and not associated to the generation of energy, with the objective of obtaining theoretically by methodologies of optimization of the best indicators of energy performance. It is expected to obtain with the work some contributions such as a mathematical model simulated in MATLAB that can be applied a central of the same characteristics, a proposal to the Colombian electrical regulation to regulate the consumption of the productive centers through energy indicators.Maestrí
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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