Submitted by Renata Lopes (renatasil82@gmail.com) on 2015-12-16T11:21:48Z No. of bitstreams: 1 igordelgadodemelo.pdf: 4931795 bytes, checksum: cf03c45f0f2492c6cf9186af1b3866a2 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2015-12-16T11:57:23Z (GMT) No. of bitstreams: 1 igordelgadodemelo.pdf: 4931795 bytes, checksum: cf03c45f0f2492c6cf9186af1b3866a2 (MD5) / Made available in DSpace on 2015-12-16T11:57:23Z (GMT). No. of bitstreams: 1 igordelgadodemelo.pdf: 4931795 bytes, checksum: cf03c45f0f2492c6cf9186af1b3866a2 (MD5) Previous issue date: 2015-09-18 / Este trabalho objetiva apresentar uma metodologia capaz de estimar os componentes harmônicos em sistemas de distribuição com topologia radial utilizando PMUs (Phasor Measurement Units). Os estados a serem estimados serão as correntes passantes em todas as linhas do sistema em coordenadas retangulares. Uma vez que essas correntes são obtidas, torna-se possível o cálculo de outras grandezas elétricas através das equações de fluxo de potência e leis de Kirchhoff. A metodologia considera poucas unidades de medição fasorial (as PMUs) instaladas efetuando a leitura dos sinais de tensões nodais e correntes nas linhas com distorção harmônica. A fim de restaurar a observabilidade do sistema por completo, são considerados dados históricos de demanda de potência ativa/reativa, os quais serão tratados como restrições de desigualdades excursionando entre um valor mínimo e máximo considerados em um problema de otimização não linear que visa diminuir a diferença entre os valores monitorados pelas PMUs e os calculados pela metodologia. As mencionadas restrições permitem ao estimador o acompanhamento das variações sofridas ao longo do tempo na curva de carga para a frequência fundamental e também para as demais frequências. A abordagem proposta neste trabalho considera a modelagem trifásica de equipamentos e linhas de distribuição, portanto, são modelados os efeitos de acoplamento mútuo entre fases e a operação não linear de equipamentos de eletrônica de potência tiristorizados. O método demonstra eficiência não apenas em estimar os componentes harmônicos de um certo espectro considerado no estudo, como também se mostra uma ferramenta prática de detecção e identificação de fontes harmônicas no sistema elétrico de potência, além de explicitar um exemplo prático do uso de PMUs no que tange ao monitoramento de redes de distribuição, carentes de acompanhamento em tempo real. A metodologia ainda se mostra capaz de ser aliada a grandes estudos contextualizados em qualidade de energia, uma vez que permite a estimação de índices de distorção harmônica. / This work aims to present a methodology which is capable of estimating harmonic components for distribution systems with radial topology, using PMUs (Phasor Measurement Units). The estimated states will be all branch currents of the system expressed in rectangular coordinates. Once these currents are obtained, it is possible to calculate other electrical quantities using power flow equations and also Kirchhoff’s law. The methodology considers the installation of a few number of phasor measurement units which will measure voltage and branch currents signals distorted by harmonic sources. In order to make the whole system observable, historical data of active/reactive power demand will be treated as inequality constraints varying between minimum and maximum limits described in a non linear optimization problem, which aims to minimize the difference between the values monitored by PMUs and the ones calculated by the methodology. The already mentioned constraints allows the accompaniment of the variations occured in a typical load curve during a period of time for the fundamental frequency and also for their multiples, allowing the accompaniment of the harmonic load curve, normally unknown. The proposed approach considers a three-phase modelling of equipments and distribution lines, subject to their mutual coupling effects caused by mutual impedances between the lines. It will also be considered electronic-based devices using thyristors located along the distribution feeder, injecting harmonic currents in the system. The method demonstrates efficiency in estimating the harmonic states of the net and also in detecting and identifying harmonic sources in an eletric power system, besides showing a practical use of PMUs for the monitoring of distribution systems, lacking in information and real-time accompaniment. The method also enables the estimation of power quality indicators such as total harmonic distortion.

När ett tillverkande företag vill öka sin marknadsandel behöver de i allmänhet öka sin produktion. För att kunna göra detta på ett kostnadseffektivt sätt är det viktigt att veta vilka faktorer som begränsar produktionssystemet, dessa benämns ofta som flaskhalsar. Ett produktionssystem är dock inte ett statiskt system vilket innebär att flaskhalsarna i ett system inte heller är statiska. De kan flytta på sig på både lång och kort sikt.   Syftet med denna fallstudie är att undersöka flaskhalsarna i ett produktionssystem och hur dessa förflyttar sig, vilka förbättringar som kan göras för att förbättra flödet i produktionssystemet. Data om produktionssystemet har samlats in med studier av databas, tidsstudie och samtal/intervjuer. Dessa data har nyttjats i en simuleringsmodell som framtagits med hjälp av FACTS-analyzer. Denna modell har studerats samt använts för att genomföra experiment. Bland annat har flermålsoptimering med SCORE metoden använts för att hitta systemets primära och sekundära flaskhalsar.   Studien visade att en station på svetsavdelningen var den huvudsakliga flaskhalsen i produktionssystemet och att den sekundära flaskhalsen i systemet låg i avdelningen efter, måleriavdelningen. Studien tog också fram en optimerad förbättrings plan för fabriken upp till 260 tillverkade båtar på ett år. / When a manufacturing company intends to increase their market share, they generally need to increase their production as well. In order to achieve this in a cost-effective manner they must be aware of which factors are limiting the production system, these factors are generally known as bottlenecks. A production system is however not a static system, this means that the bottlenecks won’t be static either. They can move both in the long term and short term.   The aim of this case study is to examine the bottlenecks in a system and their movement. As well as which improvements could be applied in order to improve the flow in the production system. Data concerning the production system has been collected through studies of internal databases, time studies and interviews. This data has been used in a simulation which has been constructed with FACTS-analyzer. The model has been studied and used for experimentation, for example, multigoal-optimization with the SCORE-method, which has been used in order to find the primary and secondary bottlenecks of the system.   The study shows that a station in the welding department was the main bottleneck in the productions system and the secondary bottleneck is in the department after, the paint shop. The study also found an optimized improvement plan for the factory up to 260 boats produced each year

The report presents a study of the operations at Rollmek AB. Rollmek is a company that manufactures various components for Panthera wheelchairs including backrests, chassis and leg rests. The thesis aims to develop various improvement proposals for the case company's painting department with regard to increasing production capacity. To achieve the goal, a simulation model has been constructed in the simulation program FACTS Analyzer, which reflects the department in question. The simulation model is based on three different variants with five different colours. For the construction of simulation models, data collected via various qualitative and quantitative research methods, including time studies, observations, and interviews. Improvement proposals that were developed were implemented in the simulation model and experimented based on the project's requirements. The study's results have led to five specific suggestions for improvement. Through the use of simulation models, data has been generated on the number of units produced and units produced/hour for the three product variations with associated color variations. With the help of these improvement suggestions, the company could implement them in production to increase its capacity to meet future demand.

The use of simulation programs in production environments is crucial due to the many advantages they offer, such as facilitating calculations of production capacity, cycle times, and optimal buffer sizes. These tools allow for the simulation of various scenarios and cost-effective testing of different strategies, making them invaluable for companies striving to improve production and performance.  The purpose of this work is to conduct a case study using FACTS Analyzer and then compare the results with another simulation software that supports 3D simulations. By conducting the same case study in both programs, we can draw conclusions about the factors companies should consider when acquiring simulation software. The data will be collected through qualitative methods such as observations and interviews, complemented by quantitative methods through experiments within the case study. The results show that FACTS Analyzer and the chosen program Plant Simulation serve different purposes but within similar areas. FACTS Analyzer offers a simple and effective 2D simulation experience that is particularly useful for students and companies planning production. On the other hand, Plant Simulation provides extensive capabilities to model everything from individual production lines to entire facilities in a clear 3D environment, making it easier for people without in-depth knowledge of the field to understand the simulations. In conclusion, the study shows that both programs can complement each other by offering unique capabilities in different domains, providing companies with a competitive advantage by optimizing their production and planning processes.

The aim of this Master Thesis is to present annotated translation of the text from the historical documentary by trilogy author Vitalij Shentalinskij "Raby Svobody". In the commentary attention was paid not only to problems at various language levels, but also to cultural and the other influences. The theoretical part, which is based on Czech and Slovakian theoretical works of Jiri Levy and Anton Popovic, could also help to facilitate deeper understanding the role of the translator and alternative ways of how the translator can de- duce a solution to particular translation problems. Key words: translation, translation problems, cultural facts, Boris Pilnyak, Soviet Union, repressions

The purpose of this diploma thesis is to show insufficiencies and mistakes in three post- war translations (by Božena Šimková, Eva Kondrysová and Eva Ruxová) of Jane Austen's Pride and Prejudice. The thesis focuses on the translations and reception of Jane Austen's work, analysis of the first sentence of the whole novel (which is crucial for its understanding) and the issue of the translation of propria, toponyms, cultural facts, humour and irony, adaptation of social roles names, phraseology. The main part of the bachelor thesis is comparison of the translations of British cultural facts of the 18th and 19th century, the forms of expressing humour and irony and translation of chosen phraseologisms or idioms. Their misinterpretation could cause severe misunderstanding.

O objetivo deste trabalho é estudar como a distribuição de investidores entre aleatórios, grafistas, fundamentalistas e híbridos afeta a dinâmica de um mercado de ações representada por fatos estilizados. Para realização desse trabalho, foi desenvolvido um simulador de mercado de ações baseado em agentes, no qual são incorporadas regras e características do mercado de ações da BM&FBOVESPA. Os agentes grafistas, fundamentalistas e híbridos aprendem com a experiência. O simulador foi executado um número de vezes para diversas distribuições de perfis e os resultados foram analisados com o objetivo de identificar relações entre tais distribuições e os fatos estilizados estudados / The objective of this work is to study how the distribution of investors among random, chartists, fundamentalists and hybrids affects the dynamics of a stock market represented by stylized facts. To carry out this work, we developed a stock market simulator based on agents, which incorporates rules and characteristics of the BM&FBOVESPA stock market. Chartists, fundamentalists and hybrids agents can learn from experience. The simulation was performed a number of times for various profiles distributions and the results were analyzed in order to identify relationships between these distributions and the stylized facts studied

A tese tem por objetivo investigar como se forma o juízo sobre os fatos na decisão judicial. Parte-se do pressuposto de que um juízo verdadeiro sobre os fatos é condição necessária, ainda que não suficiente por si só, para a justiça da decisão. A estratégia adotada é estudar o processo de conhecimento ao longo do qual se forma o juízo sobre os fatos. Inicia-se a exposição afirmando-se que são objeto de julgamento, e, portanto, do processo de conhecimento, ações humanas, as quais são sempre singulares, irrepetíveis e praticadas no passado. Sustenta-se que as ações só podem ser apreendidas adequadamente quando se consideram todos os aspectos que a caracterizam, a saber: que a ação tem como causa um agente, que é praticada com base em motivos e com determinada intenção e que é praticada em circunstâncias que, em sua totalidade, só dizem respeito a cada ação particular. Definido o objeto, passa-se ao primeiro aspecto relativo ao sujeito do conhecimento: a análise da repercussão dos dois tipos clássicos de raciocínio decisório judicial sobre a apreensão das ações particulares do caso. Conclui-se que o raciocínio analógico favorece uma apreensão das ações ampliada em relação ao raciocínio subsuntivo. O raciocínio subsuntivo, por sua vez, inibe, mas não é incompatível, com essa apreensão ampla. O trabalho retorna ao objeto de conhecimento, desta feita para analisar o que se oferece ao conhecimento do juiz para obter informações sobre as ações humanas que serão julgadas. Conclui-se que esses elementos ou são evidências, sobre as quais o juiz realiza inferências, ou presunções, que ele aplica. Evidências e presunções contribuem de forma variada para a satisfação de critérios de verdade. A tese se encerra com um retorno ao sujeito do conhecimento judicial: a análise dos dois modos de ajuizar as informações obtidas mediante inferências obtidas das evidências e os resultados das aplicações de presunções. Pelo método de resposta a questões feitas com base na regra de Direito que se supõe aplicável é possível resolver o caso nos termos dessa mesma regra de Direito, mas com um possível déficit de verdade, pois ficam de fora do juízo os aspectos das ações não contemplados pelas questões formuladas. Pelo método narrativo, os fatos são expostos em toda sua amplitude, o que atende mais satisfatoriamente à pretensão de verdade que lhe é inerente. O método narrativo não é incompatível com o método de questões, mas o completa e serve de teste à verdade das respostas. / The thesis aims to investigate how the judges opinion about the facts is built. Its basic assumption is that a true statement of the facts is a necessary condition to the justice of the decision, although insufficient by itself. The strategy adopted is to study the process of knowledge production which ends with the ascertainment of the facts. The study begins by saying that the object of trial, and therefore of the process of knowledge, are human actions, which are always unique, unrepeatable and practiced in the past. It is argued that actions can only be grasped properly when you consider all the aspects that characterize them, namely that the action is caused by an agent, it is practiced on the basis of reasons, with specific intention and that is practiced in circumstances that, in its entirety, only relate to each particular action. Set the object we pass to the first aspect of the subject of knowledge: the analysis of the impact of the two classical types of judicial reasoning on the task of knowing the particular actions of the case. It is concluded that analogical reasoning favours an expanded understanding of actions in relation to subsumption reasoning. Subsumption reasoning, in turn, inhibits, but is not inconsistent with, a broad approach to the facts. The work returns to the object of knowledge, this time to analyze what is offered to the attention of the judge to give him information about human actions that will be judged. We conclude that these elements are either evidence on which the judge makes inferences or presumptions that he applies. Evidence and presumptions contribute in different ways to the satisfaction of criteria of truth. The thesis concludes with a return to the subject of legal knowledge: the analysis of the two ways of ascertaining the information obtained through the inferences made on the basis of evidences and by application of presumptions. By the method of answering questions based on the rule of law that is supposed to apply it is possible to solve the case under that same rule of law, but with a possible deficit of truth, for the court doesnt take into account any information that is not an answer to the questions formulated. By the narrative method, the facts are exposed in all their diversity, which serves more satisfactorily to the claim to truth that must guide the judge. Moreover, the narrative method is not inconsistent with the method of questions, but functions as a complement and to test the truth of the answers.

The first chapter of the thesis offers a short theoretical view on relations among small and big states. The second chapter deals with political relations of Estonia and Russia. The chapter also describes beginnings of independent Estonian political scene as well as Russian reactions on the newly given situation. The third chapter looks at security dimension of the Estonian-Russian relations. In the fourth chapter the readers can find information about ethnic minorities in Estonia with emphasis on the Russian minority. The whole mninority issue is put into political, economic, diplomatic and security context. The fifth chapter describes mutual conflicts between Estonia and Russia which appeared in recent past and their consequences on both internal and international political scenes. Economic relations between Estonia and Russian Federation are described in the sixth chapter where one can also find comparison of the basic macroeconomic aggregates and quantification of mutual trade. A part of this chapter is also an analysis of competitiveness of Estonia and Russia. The seventh chapter deals with the reality of mutual crossborder cooperation between Estonia and Russia.

O objetivo deste trabalho é estudar como a distribuição de investidores entre aleatórios, grafistas, fundamentalistas e híbridos afeta a dinâmica de um mercado de ações representada por fatos estilizados. Para realização desse trabalho, foi desenvolvido um simulador de mercado de ações baseado em agentes, no qual são incorporadas regras e características do mercado de ações da BM&FBOVESPA. Os agentes grafistas, fundamentalistas e híbridos aprendem com a experiência. O simulador foi executado um número de vezes para diversas distribuições de perfis e os resultados foram analisados com o objetivo de identificar relações entre tais distribuições e os fatos estilizados estudados / The objective of this work is to study how the distribution of investors among random, chartists, fundamentalists and hybrids affects the dynamics of a stock market represented by stylized facts. To carry out this work, we developed a stock market simulator based on agents, which incorporates rules and characteristics of the BM&FBOVESPA stock market. Chartists, fundamentalists and hybrids agents can learn from experience. The simulation was performed a number of times for various profiles distributions and the results were analyzed in order to identify relationships between these distributions and the stylized facts studied