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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

The sustainable management of micro hydropower systems for rural electrification : the case of Bhutan /

Dorji, Karma Penjor. January 1900 (has links)
Thesis (M.S.)--Humboldt State University, 2007. / Includes bibliographical references (leaves 104-109). Also available via Humboldt Digital Scholar.
52

Power utilization of Meramec Spring

Walsh, Francis Henry. May, Lawrence. January 1902 (has links) (PDF)
Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1902. / F. H. Walsh determined to be Francis Henry Walsh from "School of Mines and Metallurgy Catalogue 1902-1903". Thesis includes two plates. Plate No. I. "shows a topographical map of the spring and surroundings". Plate No. II. "shows sketches of the power house in plan, side elevation and cross section". PDF lacking plates. The entire thesis text is included in file. Typescript. Illustrated by authors. Title from title screen of thesis/dissertation PDF file (viewed November 5, 2008)
53

Des entreprises hydro-électriques : la reglementation de la distribution d'energie : véritable critère de la concession de service public : etude de droit administratif comparé /

Friedlaender, Helmut. January 1935 (has links)
Thesis (doctoral)--Université Lausanne.
54

Effects of flow regulation due to hydroelectric project operation on the structure of fish communities in Wisconsin's large river systems /

Piette, Randal R. January 2004 (has links) (PDF)
Thesis (M.S.), College of Natural Resources, University of Wisconsin--Stevens Point, 2004. / Includes bibliographical references (leaves 246-253).
55

Mini-hydro systems using induction generators /

Eaton, Norris William, January 1997 (has links)
Thesis (M. Eng.)--Memorial University of Newfoundland, 1997. / Bibliography: leaves 155-163.
56

The cumulative environmental effects of proposed small-scale hudroelectric developments in Newfoundland, Canada /

Bonnell, Stephen J., January 1997 (has links)
Thesis (M. A.), Memorial University of Newfoundland, 1998. / Bibliography: leaves [249]-273.
57

New energy geographies : powershed politics and hydropower decision making in Yunnan, China /

Magee, Darrin L. January 2006 (has links)
Thesis (Ph. D.)--University of Washington, 2006. / Vita. Includes bibliographical references (p. 302-334).
58

Model development for seasonal forecasting of hydro lake inflows in the Upper Waitaki Basin, New Zealand /

Purdie, Jennifer. January 2005 (has links)
Thesis (Ph.D. Earth Sciences)--University of Waikato, 2005. / Includes bibliographical references (p. 232-246) Also available via the World Wide Web.
59

Variações da fauna de mosquitos (Díptera:Culicidae) em área de implantação de uma hidrelétrica no rio Paranapanema, SP/PR / Variations of fauna of mosquitoes (Diptera: Culicidae) in areas of deployment of a dam on river Paranapanema, SP / RP.

Renato Sinnhofer Sugimoto 04 September 2009 (has links)
Se por um lado as usinas hidrelétricas suprem as necessidades de energia do país, essas também são responsáveis pela proliferação de doenças cujos agentes são transmitidos, em sua grande maioria, por mosquitos que utilizam as áreas inundadas dessas usinas como criadouros. Pode-se observar tal cenário na UHE de Ourinhos, que está localizada no rio Paranapanema entre as cidades de Ourinhos, SP, e Jacarezinho, PR, onde foram definidas três estações de coleta usadas para a avaliação da dinâmica de população nos períodos pré e pós inundação do reservatório, a partir dos dados coletados descreveu-se as alterações ocorridas na população de culicídeos da UHE Ourinhos, diante dos impactos da inundação e calculou-se riqueza, dominância, diversidade e , IAEP e similaridade. Sendo que para captura de adultos utilizou-se armadilha de Shannon e aspirador à bateria, e para os imaturos conchas entomológicas em coleções de água estagnada. Entre as espécies de importância epidemiológica coletadas e identificadas temos: Aedes albopictus, Aedes scapularis, Anopheles albitarsis, Anopheles darlingi, Culex quinquefasciatus, Culex nigripalpus, Haemagogus leucocelaenus e Psorophora ferox. Destaca-se a redução do número de espécies no período pós enchimento, juntamente com a recolonização do nicho por novas espécies ou espécies antes raras, como exemplificado pelo surgimento do An. darlingi, e ascensão do An. albitarsis, espécies consideradas vetores primário e secundário da malária, no Brasil, respectivamente. Como conclusão, depreende-se que o lago formado pela represa de Ourinhos alterou a dinâmica de culicídeos do local, fato que pode representar menor contato desses hematófagos com a população no entorno do lago recém formado / If the hydroelectric power plants supply the needs of the country, they are also responsible for the proliferation of diseases whose pathogens are transferred, in most of time, by mosquitoes that using the flooded areas such as breeding. It can be observed this scenario in the HPP of Ourinhos, which is located on the Paranapanema river between the cities of Ourinhos, SP, and Jacarezinho, PR, where three stations were established to collect used for assessing the diversity of populations in the pre and post flooding of the reservoir from the data collected described the changes occurring in the population of Culicidae of Ourinhos HPP, before the impacts of flooding and it was estimated richness, dominance, and diversity, standardized index of abundance of species and similarity. Where to catch the adult was used the Shannons trap and vacuum, and for the immature forms \"entomological ladle\" in collections of stagnant water. Among the species of epidemiological importance have collected and identified: Aedes albopictus, Aedes scapularis, Anopheles albitarsis s.l, Anopheles darlingi, Culex quinquefasciatus, Culex nigripalpus, Haemagogus leucocelaenus and Psorophora ferox. It is reducing the number of species in the period after filling, together with the recolonization of the niche for new species or rare species before, as exemplified by the emergence of Anopheles(Nys.) darlingi and Anopheles albitarsis s.l rise of species, as primary and secondary vectors malaria in Brazil, respectively. In conclusion, it appears that the lake formed by the dam of Ourinhos changed the diversity of the mosquitoes in site, which may represent less contact with the blood of people around the newly formed lake
60

Desenvolvimento de sistema computacional para pré-dimensionamento de turbinas para micro, mini e pequenas centrais hidrelétricas

Alexandre, Denise Barros [UNESP] 30 January 2004 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:24:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-01-30Bitstream added on 2014-06-13T18:21:00Z : No. of bitstreams: 1 alexandre_db_me_botfca.pdf: 3742670 bytes, checksum: 98e41e6dc4b4d0b4dc5de6f363be576f (MD5) / Universidade Estadual Paulista (UNESP) / O Brasil é o país que possui uma das maiores reservas mundiais de hidroenergia, em razão da quantidade imensa de rios em seu território. Em diversas áreas isoladas, tais como grupos populacionais dispersos em áreas rurais, a mais importante alternativa de produção e utilização de energia renovável é representada pelas Micro, Mini e Pequenas Centrais Hidrelétricas, que promovem oferta de energia elétrica utilizando pequenos aproveitamentos hidroenergéticos. Para pequenos aproveitamentos, o projetista de uma central hidrelétrica deve, ao definir o tipo de turbina hidráulica, fixar-se nos rotores Pelton, Francis e Kaplan e nas turbinas Banki, por serem os mais freqüentemente encontrados na prática usual. O projeto destes aproveitamentos hidroenergéticos requer muitos detalhes, regras e cálculos matemáticos que exigem tempo e conhecimento do assunto, tornando desejável uma ferramenta que forneça, de forma rápida e clara, a informação sobre os dados envolvidos no dimensionamento de equipamentos. Na sociedade moderna, tal necessidade de informação é constantemente suprida pela informática, com o uso de softwares específicos para o assunto em foco. Com esta idéia, foi desenvolvido o presente trabalho, considerando-se que a criação de um software que atende aos requisitos dos projetos de aproveitamentos hidroenergéticos executa o papel importante de ser uma ferramenta de desenvolvimento da eletrificação rural. Este trabalho pretende, especificamente para geração de energia elétrica através de pequenas centrais hidrelétricas, estabelecer um roteiro completo para pré-dimensionar turbinas hidráulicas, implementar este roteiro em sistema computacional, e criar uma interface de software de fácil uso. A partir das variáveis: vazão do rio, altura de queda do rio, e altitude local, as quais são fornecidas pelo usuário... / Brazil is the country that possesses one of the largest world reservations of hydraulic power, in reason of the immense amount of rivers in its territory. In diverse isolated areas, such as dispersed population groups in rural areas, the most important alternative of production and use of renewable energy is represented by the Micro, Mini and Small Hydroelectric Power Stations, that promote offer of electric energy using small uses hydroelectric power. For small uses, the planner of hydroelectric power plants, when defining the type of hydraulic turbine, to fix itself in the Pelton, Francis and Kaplan rotors and in the Banki turbines, for they be more frequently the found in the usual practice. The project of these uses hydroelectric power requests many details, rules and mathematical calculations that demand time and knowledge of the subject, turning desirable a tool that supplies, in a fast and simple form, the information on the data involved in the sizing of equipment. In the modern society, such need of information constantly is supplied by computer science, with the use of specific software for the subject in focus. With this idea, the present work was developed, being considered that the creation of a software that assists to the requirements of the projects of uses hydroelectric power executes the important paper of being a tool of development of the rural electrification. This work intends, specifically for generation of electric energy through small Hydroelectric Power Stations, to establish a complete guide of orientation for to make initial calculations of the dimensions of hydraulic turbines, to implement this guide of orientation in computational system, and to create an interface of software of easy use. Starting from the variables: outflow of the river, height of fall of the river, and local altitude, which is supplied by the user... (Complete abstract click electronic access below)

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