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A privatização e descentralização do setor elétrico nacional frente à política ambiental brasileira: uma abordagem sociológica do caso das Pequenas Centrais Hidrelétricas (PCHs) / The national electric sector privatization and decentralization in relation to the Brazilian environmental policy: a sociological approach of the small hydroelectric power plants casePatrícia Aparecida Pereira Souza 16 September 2004 (has links)
A onda de recessão econômica e de desaceleração do crescimento da década de 80, aliada à crise política e financeira vivenciada pelos Estados Nacionais na A.L., abriu terreno para que concepções neoliberais permeassem as decisões ligadas aos investimentos necessários em infra-estrutura. O Brasil, do Governo Collor ao FHC (1990 à 2002), seguiu esta orientação e, por meio dela, permitiu que vários segmentos dos serviços essenciais se tornassem passíveis de privatização e descentralização, dentre eles, o setor elétrico que foi reestruturado. Dado o contexto supra, este estudo visa analisar, sob um prisma sociológico e da geografia humana, o ressurgimento das pequenas centrais hidrelétricas no cenário nacional, intentando dar pistas da efetividade da política ambiental brasileira quando da implantação e recuperação destas usinas. Trata-se de examinar quais mecanismos político-institucionais permitem que o bem público, representado pelos recursos hídricos, possa ser apropriado para responder às necessidades de natureza privada, e como as necessidades sócio-ambientais imbricadas são contempladas nesse processo. É apresentado um estudo de caso para trazer à tona, por um micro recorte, a implantação de pequenos aproveitamentos hidrelétricos no qual a necessidade expansionista do setor reitera um padrão de excludência social e pouca efetividade decisória dos agentes sociais afetados. / The 80\'s wave of economic recession and decelerated development, allied to political and financial crises experienced by Latin American National States, opened field to a spread-out of classic conceptions through decisions connected to necessary infra-structure investments. Brazil followed this orientation, from Collor to FHC (1990 to 2002), and allowed many essential service segments to become liable of privatization and decentralization, among them, the electric sector, which was re-structured. Considering this context, this study aims to analyze under sociological and human geographical viewpoints, the resurgence of Small Hydroelectric Power Plants on the national scenery, intending to give cues of the Brazilian environmental policy effectiveness, by the time of these plants implantation and recovery. It concerns of examining which are the political-institutional mechanisms that allow the public welfare, represented by hydrous resources, to be convenient to private nature demands, and how the involved social-environmental demands are analyzed on this process. A case study is presented in order to bring-up, through a short brief, the implantation of small hydroelectric plants, where the growing necessity of the sector, reaffirms a pattern of social exclusion and few conclusive effectiveness of the affected social agents.
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Licenciamento ambiental no Brasil sob a perspectiva da modernização ecológica. / Environmental Licensing in Brazil: the Ecological Modernization perspectiveAlexandre do Nascimento Souza 03 April 2009 (has links)
O Licenciamento ambiental é um dos instrumentos da Política Nacional de Meio Ambiente, estabelecida pela lei 6.938 de 1981. Nos últimos 30 anos, o país passou por inúmeras transformações econômicas, políticas e sociais. No cenário de grande potencial hidrelétrico do país, demanda crescente por energia, fortalecimento e consolidação da legislação e do sistema de gestão ambiental, participação de novos atores econômicos interessados em prover a expansão do parque de geração de energia, maior participação dos movimentos sociais na esfera pública e uma memória não muito distante de graves problemas socioambientais ocasionados pela construção de hidrelétricas; é que se dão os conflitos que perpassam todo o processo de licenciamento ambiental de hidrelétricas e do qual se ocupa essa dissertação. Entre os anos de 2004 e 2008, muitos atores econômicos e sociais envolvidos com a temática do licenciamento ambiental no país se posicionaram publicamente, sobretudo a respeito dos conflitos relacionados à concessão das licenças ambientais para empreendimentos hidrelétricos. A reflexão sociológica a qual se propôs este projeto de pesquisa utiliza a Teoria da Modernização Ecológica como instrumental teórico e busca entender o estado da arte do licenciamento ambiental de hidrelétricas no Brasil. / The Environmental license is one of the tools of the National Environmental Policy, established by the law 6.938 of 1981. Over the past 30 years, the country has had lots of economical, political and social changes. The socio-environmental conflicts that permeate the environmental licensing process of UHEs, which constitute the subject of this dissertation, happen in a context characterized by the great hydroelectric potential of the country, the increasing demand for energy, the strengthening and consolidation of the legislation and of the environmental management system, the growing participation of the social movements in the public sphere, a recent memory of socio-environmental problems resulting from the construction of hydroelectric power stations and the participation of new economic agents interested in promoting the expansion of the energy generation park. Between 2004 and 2008, many economical and social agents that were involved with environmental licensing subjects in Brazil publicly expressed their positions, mainly in relation to the conflicts related to environmental license concession for hydroelectric enterprises. The sociological analysis of this research project uses the Ecological Modernization Theory as a theoretical instrument. It also aims to understand the environmental licensing process for hydroelectric power stations in Brazil.
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Návrh vírové turbiny pro MVE Hovězí / The swirl turbine design for small water power Hovězí.Oliva, Štěpán January 2009 (has links)
The aim of this work was to develop a proposal regarding hydro-energy potential of small flows of water through the city „Hovězí near Vsetín“. The available water energy was used for running a Swirl Turbine featuring a siphon arrangement. This new concept makes use of a modified Kaplan Turbine, operating at small water heads. It operates also at higher revolutions and has higher discharge.
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Power Failures: Engineers and the Litani River, 1918–1978Lawson, Owain January 2021 (has links)
This dissertation is a history of efforts to develop the Litani River in Lebanon. Under French rule (1920–43), development projects shaped an unequal distribution of infrastructure that privileged Christian and urban regions. A cohort of nationalist Lebanese engineers advocated developing the Litani River, in Lebanon’s Shi‘a-majority southwest, as a means to foster national unity by resolving inequalities among Lebanon’s religious communities. The resulting Litani project (1955–65) was Lebanon’s first grand-scale hydroelectric project.
The United States, France, and the World Bank made the project central to their respective strategies in the decolonizing Middle East. Lebanese engineers competed and collaborated with European and American experts to design infrastructure that connected the Litani, and Lebanon’s hinterland, with the capital, Beirut. Economists, religious leaders, farmers, and communists debated infrastructure designs in Beirut’s bourgeoning public sphere. The completed infrastructure generated electricity for Beirut’s consumers by extracting water from the impoverished rural margins. The World Bank deemed the project a qualified success as an investment. But most in Lebanon considered it a monumental failure because the infrastructure did not meet urgent needs. Rather, the infrastructure materialized preexisting inequalities between Beirut and its peripheries, which provided a visible injustice that a rural Shi‘i political-religious movement mobilized to demand equal rights. Unlike familiar histories of development in which rural communities resist state intrusion, in Lebanon, rural actors and engineers sought to build a larger and more equitable state by constructing socially just infrastructure.
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Modeli rizika za procenu nivoa vibracija tehničkih sistema / Models of risk for assessment of vibration levels of technical systemsJurić Slobodan 11 September 2018 (has links)
<p style="text-align: justify;">Istraživanje modela rizika predstavlja stalnu proveru parametara vibracija sistema, na osnovu kojih se može prognozirati vreme zamene komponenata pre nego što dođe do njihovih otkaza. Model se zasniva na stalnom praćenju parametara stanja u cilju eliminacije slabih mesta na tehničkom sistemu. Na taj način će biti ustanovljeni modeli za predviđanje i sprečavanje otkaza u radu tehničkog sistema. Karakteristika ovog modela je u neprekidnom praćenju stanja tehničkog sistema u procesu eksploatacije i iznalaženje uporednog modela za procenu rizika, prema ISO standardima. Istraživanje je imalo za<br />cilj da se izvrši: procena dinamičkog stanja, osetljivosti i sklonosti rotirajućih elemenata<br />hidro-elektrane (HE) ka debalansu, kao i procenu sigurnosti funkcionisanja vratila i rotora<br />turbinskog dela uređaja HE sa aspekta minimalnog rizika od pojave zastoja.</p> / <p>Research into risk models is a constant check of the system's vibration parameters, based on which the time of replacing components can be predicted before their failure occurs. The model is based on continuous monitoring of state parameters in order to eliminate weak spots in the technical system. In this way, models will be established for predicting and preventing failure in the work, technical system. The characteristic<br />of this model is the continuous monitoring of the state of the technical system in the exploitation process and the finding of a comparative risk assessment model, according to ISO standards. The aim of the research was to evaluate the dynamic state, sensitivity and tendency of the rotating elements of the hydroelectric power<br />plant (HE), to the imbalance, as well as to assess the safety of the functioning of the shaft and rotor turbine part of the HE unit from the aspect of minimal risk of occurrence of delays.</p>
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Edith Irvine: Her Life and PhotographyPlunkett, Wilma Marie 01 June 1989 (has links) (PDF)
ln mid-1988, Brigham Young University received a high-quality collection of photographic glass plates made by Edith Irvine at the tum of the century. The plates, her camera and other photographic equipment, and miscellaneous publications were donated to BYU by her nephew, Jim Irvine.
When the plates arrived and the Archives Photolab had them proofed, we realized thal not only were the San Francisco earthquake/ fire and other areas of California history recorded, but we had, in fact, the work of an outstanding photographer. As we compared the proofs with the work of other photographers who handled similar subjects, we called on faculty members qualified to judge her work. All were unstinting in their praise. As our Archives Curator, Dennis Rowley, looked at them, he said, "I've never seen a sel of photographs create a mood like these do."
The more I worked with them, the greater my need to do more than just process and preserve. As I discussed the collection with the faculty members, it became evident to me that I should make a change in my graduate program. I was determined to learn more about the photographer.
The collection of photographs can be viewed in the Edith Irvine Collection.
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Methods and cost of developing farm water powerWallace, Harry Moore January 1926 (has links)
no abstract provided by author / Master of Science
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Development ethics and the Canadian North : a case study analysis of the Churchill-Nelson Rivers Hydro Diversion ProjectFriesen, Wilbert J. January 1999 (has links)
This thesis argues that economic development, in both theory and practice, is inevitably based on moral questions. These questions have been explored in recent years by "development ethicists," a multidisciplinary group of scholars and practitioners committed to evaluating the policy implications of economic development. Chapter 1 engages this body of literature, arguing that the capability ethic articulated by Amartya Sen and Martha Nussbaum can provide a valuable ethical framework for evaluating economic development in the Canadian north. Their approach is considered in conjunction with other ethical proposals, and, in particular, how theological insights provide an additional dimension for a more comprehensive development ethic. / Chapter 2 investigates the ethical assumptions in the theories and models of economic development proposed for the Canadian north, and how public policy based on these theories and models has infringed on the claims and aspirations of Aboriginal peoples. The chapter then shifts from the larger Canadian context to Manitoba, and explores the story of how two hydro development projects impacted several Aboriginal communities. / This story provides the context for understanding why four church denominations became involved in defending the rights and aims of five Aboriginal communities in northern Manitoba. Chapter 3 examines the moral vision of the four Christian churches and their rationale for sponsoring four days of public hearings on the Churchill-Nelson Rivers hydro diversion project. The public hearings provide an opportunity to analyse how development affects the lives of a people group when it is thrust upon them without consideration of their economic, cultural, and social value systems. / The final chapter examines the issue of the loss of cultural identity for Aboriginal communities as economic development occurs. A major issue pertaining to the loss of cultural identity is whether a development ethic should be based on a universal ethic, or on local traditions, for example, the traditions of the five Aboriginal communities in northern Manitoba. The efforts of the Interchurch Task Force are investigated as a particular type of response to these issues.
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Development ethics and the Canadian North : a case study analysis of the Churchill-Nelson Rivers Hydro Diversion ProjectFriesen, Wilbert J. January 1999 (has links)
No description available.
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Hydroelectricity and landscape protection in the Highlands of Scotland, 1919 - 1980Payne, Jill January 2008 (has links)
This thesis employs twentieth-century hydroelectric development ventures in the Highlands of Scotland as a means of exploring conflicting demands of socio-economic development and landscape protection in cherished places. In Scotland, twentieth-century landscape protection ideals were founded upon a landscape aesthetic shaped by the principles and objectives of eighteenth- and nineteenth-century Romanticism. The concept that the ‘natural’ world somehow existed separately from the world of humans, as a potential refuge from a rapidly industrialising European society, meant that the Romantic landscape aesthetic left little or no room for the incorporation of visible elements of industrialisation. This aesthetic has seen only limited change over time. As a result, satisfactory compromises between land-use and landscape protection have seldom been reached: a situation thrown into sharp relief by efforts to develop Highland water systems for the generation of hydroelectric energy during the period 1919 to 1980. The debate over hydroelectric development in the Highlands is instructive for a number of reasons, not least its parallels with the current focus on the placement of wind turbines in significant landscapes. Thanks to the Romantic legacy, attempts to modify landscapes as valued as those of the Highlands are fraught with complexity, even when development is undertaken in the interests of socio-economic enhancement. The thesis outlines the progression of both sides of the argument, assesses the significance of the compromises attempted and evaluates the lessons learned from nearly six decades of policymaking initiatives in this sphere. Core aesthetic ideals broadened, but did not change. Landscape protection progressed on the basis of protectionists’ ability to adjust the focus of their opposition; increased articulation of the idea of the collective ownership of important landscapes superseded the need to confront the viability of entrenched aesthetic orthodoxies.
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