Projeto multicritério de filtros harmônicos passivos para instalações industriais utilizando técnicas de inteligência computacional

Devido ao auge do crescimento industrial na Região Norte e, em especial, o Pólo Industrial de Manaus (PIM), são necessários obter ferramentas matemáticas que facilitem ao especialista tomar decisões sobre a seleção e dimensionamento dos filtros harmônicos que proporcionam neutralizar os efeitos prejudiciais dos harmônicos gerados pelas cargas não lineares da indústria e alcançar conformidade com os padrões das normas de qualidade de energia correspondentes. Além disso, como os filtros harmônicos passivos têm a capacidade de gerar potência reativa à rede, estes meios são eficazes compensadores de potência reativa e, portanto, podem conseguir uma economia significativa no faturamento de energia elétrica consumida por essas instalações industriais. Esta tese tem como objetivo geral desenvolver um método matemático e uma ferramenta computacional para a seleção da configuração e parâmetros do projeto de um conjunto de filtros harmônicos passivos para sistemas elétricos industriais. Nesta ótica, o problema de otimização da compensação de harmônicos por meio de filtros passivos foi formulado como um problema multiobjetivo que considera tanto os objetivos da redução da distorção harmônica como da efetividade econômica do projeto considerando as características das tarifas brasileiras. Todavia, a formulação apresentada considera as restrições relevantes impostas pelas normas brasileiras e estrangeiras. A solução computacional para este problema foi conseguida, usando o algoritmo genético NSGA-II que determina um conjunto de soluções ótimas de Pareto (Fronteira) que permitem ao projetista escolher as soluções mais adequadas para o problema. Por conseguinte, a ferramenta computacional desenvolvida tem várias novidades como: não só calcula os parâmetros que caracterizam os filtros, como também seleciona o tipo de configuração e o número de ramos do filtro em cada barra candidata de acordo com um conjunto de configurações pré-estabelecidas; têm implementada duas normas para a avaliação das restrições de qualidade de energia (Prodist-Módulo 8 e IEEE 519-92) que podem ser selecionadas pelo usuário; determina soluções com bons indicadores de desempenho para vários cenários característicos e não característicos do sistema que permitem a representação das as variações diárias da carga; das variações dos parâmetros do sistema e dos filtros; avalia o custo das contas de energia numa rede elétrica industrial que tem diferentes condições de operação (cenários característicos); e avalia o efeito econômico de filtros de harmônicos como compensadores de potência reativa. Para desenvolver a ferramenta computacional adequada desta tese, foi empregado um modelo trifásico em coordenadas de fase para redes de energia elétrica industriais e de serviços onde foram feitos vários programas utilizando várias ferramentas computacionais adicionais. Estas ferramentas compreendem um programa de varredura de freqüência, um programa do fluxo de harmônicos por injeção de correntes e um programa de fluxo de potência à freqüência fundamental. Os resultados positivos desta tese, a partir da análise de vários exemplos práticos, mostram as vantagens do método desenvolvido.

Eficiência energética em uma indústria madeireira

In wood processing industries, which use electrical equipment in the production process, in most cases these are badly scaled or operate under inadequate conditions, resulting directly in industrial energy efficiency, which proves important because besides having technological innovation, also with practices and policies, aims to decrease power consumption. So in a wiring project should take into account the variables that influence energy efficiency. Thus this work has been reviewed and subsequently calculated some of these variables, such as active power, power factor and demand for the entire industry (global) and also for specific equipment, the chipper. The network analysis was performed in a wood processing industry in the city of Taquarivaí - SP, and evaluated these variables with a network analyzer and also by analysis on energy bills, which were found in both analysis levels below those found in literature. These factors are due to poor design, improper use, storage of equipment or even by characteristic of the production process, ie, the equipment running on empty because of the volatility of production

Potenciais aves dispersoras de sementes das espécies vegetais zoocóricas da Mata da Bica, Botucatu - SP

The semidecidual forests, as tropical forests, presents zoochoric dispersal syndrome in the most of their plant species, with approximately one third of frugivorous species responsible for the seeds dispersal are birds. The bills width is a limiting factor, it must be equal or bigger than the seeds width, because the viable seeds dispersal depends on leaving the digestive system after been swallowed hole. Birds and plants inventorys were realized in a semidecidual Forest fragment, in Botucatu – SP, called Mata da Bica. After this, the birds consumers of fuits/seeds were selected (frugivorous, granivorous and onivorous) and also the zoochoric plants, both for building a possibilities matrix, to verify the potential seed dispersers according to the seeds and bills width. Going to the matrix end we can observe a decrease in the interaction possibillities, because the seeds width increases and the bills width decreases. It has been observed that 50,7% seeds could be dispersed by all listed birds, because the seeds were narrower than the narrowest bill. In the other way large seeded species, as Holocalix balansae and Hymemaea courbaril has shown only two possible dispersers: Trogon surrucura and Piaya cayana. There are no possible dispersers to Syagrus oleraceae in the matrix. The need for large birds or other animals that works as large seed disperses demand conservation efforts, since most of these animals need big and conserved areas for their life habits

Desenvolvimento de um smart meter: um estudo sobre eficiência energética através das redes inteligentes

Pós-graduação em Engenharia Elétrica - FEB

Partidos políticos e processo decisório em Araraquara-SP (1997-2008)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Lei de responsabilidade educacional: direito fundamental à educação, regime jurídico administrativo e responsabilização dos agentes públicos

Pós-graduação em Educação - FCT

Projetos de lei sobre medicalização da educação: biopolítica, controle e resistência na contemporaneidade

At present, the processes of medicalization of childhood have reached the school spaces where diagnostic labeling accompanied of prescription of psychotropic drugs proliferate. The present work aims to study through the Foucauldian genealogical approach, the process of medicalization of education, with a special attention to analysis of Brazilian bills which serve to the medicalization logics and to the study of resistance movements which emerged with the purpose of denouncing psychopathology-causing strategies. It is considered that the school spaces, subject to the disciplining processes and standardization of bodies, have gained through bills, new devices of support to the psychiatric discourses. These, by appropriating of the childhood considered problem, have spawned diagnoses and psychopharmacological drugs, process that has been faced by resistance movements identified with proposals for enhancement of the plurality of life.

Comparative analysis between biogas flow in landfill and electrical resistivity tomography in Rio Claro city, Brazil

The biogas originated from anaerobic degradation of organic matter in landfills consists basically in CH4, CO2, and H2O. The landfills represent an important depository of organic matter with high energetic potential in Brazil, although with inexpressive use in the present. The estimation of production of the productive rate of biogas represents one of the major difficulties of technical order to the planning of capture system for rational consumption of this resource. The applied geophysics consists in a set of methods and techniques with wide use in environmental and hydrogeological studies. The DC resistivity method is largely applied in environmental diagnosis of the contamination in soil and groundwater, due to the contrast of electrical properties frequent between contaminated areas and the natural environment. This paper aims to evaluate eventual relationships between biogas flows quantified in drains located in the landfill, with characteristic patterns of electrical resistivity in depth. The drain of higher flow (117 m3 /h) in depth was characterized for values between 8000 Ω⋅m and 100.000 Ω⋅m, in contrast with values below 2000 Ω⋅m, which characterize in subsurface the drain with less flow (37 m3 /h), besides intermediary flow and electrical resistivity values, attributed to the predominance of areas with accumulation or generation of biogas.

À margem da lei: a criminalização da homofobia e seus reflexos políticos e sociais

Earlier this year, took office in Congress deputies and senators regarding the Legislature from 2015 to 2019. Most elected officials has been identified as more conservative character, which should change the work schedule in the Legislative Houses. In this context, this experimental project consists of a journalistic reporting that aims to analyze how this new composition can affect issues involving the agenda of the LGBT community, in particular, the bills criminalizing the practice of homophobia. The work aims to reach politically minded readers between 21 and 60 years, in order to educate them about the importance of this issue. Therefore, we performed the calculation of violence perpetrated against this population, studied the new profile of the Congress, analyzed how Judiciary acts front of legislative inertia and made interviews. The report compiles important data about the issue and provides, as a result, information reinforced by experts to potentially broaden the understanding of readers about the fact

Estudo de viabilidade técnica e econômica da utilização de geração diesel no horário de ponta

Given the current energy crisis experienced in our country with the lack of rain in some areas, the energy distributors were forced to resort to thermal power plants to complement their energy production; raising the cost of electricity generation, they have been forced to repass this value to the customers through the Tariff Flags. Concerned about a substantial increase in their electric bill, some consumers were forced to look for alternatives so that their results are not affected. The use of diesel generation at peak hours is a relatively simple and inexpensive alternative that has been widely used for several industrial, commercial and service customers. In this present work, we conducted a feasibility study of the use of diesel generators at peak hours in a medium-sized hospital, calculating the depreciation period for the investment through savings in electricity bills

Jimmie E. Nunnery Family Papers - Accession 436

The Jimmie E. Nunnery Papers consist of papers relating to Jimmie Nunnery’s tenure in the South Carolina House of Representatives (1963-1968). Included is general correspondence, constituency correspondence, bills, resolutions, acts, speeches and various other correspondence and papers relating to Nunnery’s career.

Robert Lawrence McFadden Papers - Accession 378

The Robert Lawrence McFadden Papers consist of correspondence, reports, minutes, studies, legislative bills, and acts, amendment copies, financial records, news releases, policy statements, maps and newspaper clippings relating to Mr. McFadden’s career as a member of the S.C. House of Representatives for District #50 of York County. the papers relate to such diverse topics and organizations as the York County Nature Museum, alcohol and drug abuse, the Catawba Regional Planning Council, the death penalty, public education, social services, Winthrop University and York Technical College, rural fire departments, et al. The collection is arranged so that the general correspondence appears first in the collection followed by a subject file arranged alphabetically. A random collection of newspaper clippings closes out the collection. All records are arranged in their respective subject files in general chronological order.

Marguerite Dawson King Papers - Accession 280

Mrs. Marguerite Dawson King (1901-1979) was a very active and civic minded woman and the collection of her papers attests to the valuable contributions which can be made by women and by senior citizens. The King Papers are a valuable source of information on women in politics and on the American Association of Retired Persons (AARP). The collection consists of correspondence, minutes, bylaws, reports, agendas, yearbooks, handbooks, newsletters, brochures, speeches, legislative bills, program notes, newspaper clippings, awards, and certificates concerning Mrs. King’s activities as chapter chairman and assistant state director of the AARP; as district chairman of the United Daughters of the Confederacy; as the first woman County Chairman of the democratic party in S.C. and as a member of the Democratic Women’s Council of S.C., the York County Democratic Women’s Club, Partners of the Americas, and the Order of the Eastern Star. Also included in the collection is information on the development of the city of Rock Hill, S.C.

Walter Caswell Sullivan Papers - Accession 201 - M88 (112)

The Walter Caswell Sullivan Papers consist of correspondence; bills of sale; a biographical sketch of Edward Walter Hall (1859-1949), pioneer educator of Rock Hill; a journal (1912-1915) of the Eats Club in Rock Hill; and war ration books. Most of the correspondence concerns a John H. Allen of Chester and subjects include the health and financial affairs, the shooting of a doctor, Hall family genealogy, and business transactions. The Eats Club's members were Julia Cork, Eva Fewell, Josie Hall, Anne Claire Hutchison, and Susan Steele.

RP97-362 File It Easy, Find It Fast: A Home Filing System

A home filing system makes important papers readily available when needed. If managed properly, the filing system can get older papers out of the way, making needed records more accessible. A well-organized filing system for your household can pay big dividends when it comes time to find an important paper you need NOW. There is no one best filing system for everyone; what works for you could be a disaster for someone else. Once set up, a filing system helps you to be a more effective and efficient financial manager and decision maker.