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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.
1

Přestavba letounu VUT 051 RAY na dvoumotorovou variantu / Rebuilding of VUT 051 RAY into twin-engine conception

Jílek, Jan January 2018 (has links)
The master’s thesis is dealt with the design of rebuilding of VUT 051 RAY which is equipped electric powerplant to twin-engine conception named VUT 051 RAY-DUO. In the thesis was verified the range of centre of gravity position of VUT 051 RAY-DUO then powerplant in ducted fan configuration was designed, performances of the airplane were appointed and controllability during fail one of the engines was analysed. The design of new powerplant was verified by strength analysis and then costing calculation was established.
2

Análise das implicações dos anofelinos (Diptera: Culicidae) no entorno do aproveitamento múltiplo de manso, estado de Mato Grosso, Brasil / Analysis of the implications of Anopheles (Diptera: Culicidae) in the vicinity of the multiple use of quiet, state of Mato Grosso, Brazil

Pontes, Zuleide Maria de Fátima January 2009 (has links)
Made available in DSpace on 2011-05-04T12:36:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2009 / O Brasil é um dos 20 países onde as hidrelétricas representam a parte mais importante da matriz energética, respondendo pela geração de 92% da energia consumida no país. Devido ao vasto tamanho do território e a quantidade de rios sujeitos ao aproveitamento hidroenergético, desde a década de 70, foram implementados em torno de dois mil projetos de usinas no país. Embora tenha como produto final uma energia limpa , algumas dessas obras provocam desastres ecológicos que influenciam diretamente à saúde humana. A avaliação prévia dos impactos de empreendimentos causadores destes prejuízos é recomendada tanto pela Organização Mundial de Saúde (OMS), quanto pela Secretaria de Vigilância em Saúde do Ministério da Saúde, sendo fundamental para a preservação do meio ambiente e da saúde coletiva. As mudanças ambientais afetam a dinâmica populacional de muitos vetores, desencadeando importantes surtos de doenças. No ano de 1999, a operação do APM Manso reacendeu a discussão sobre os possíveis impactos causados, não só pelas alterações ambientais decorrentes da sua instalação, como também do provável surgimento de novos pontos de disseminação de doenças humanas transmitidas por vetores, o que motivou o desenvolvimento deste trabalho. Considerando o início de operação da usina, o estudo teve como foco operíodo de 1999 a 2004. Os bancos de dados oficiais de instituições locais e nacionais e dados levantados por FURNAS foram utilizados como fontes de informações. Nos resultados do estudo, não foi possível evidenciar possíveis impactos sobre a saúde humana, relacionados à ocorrência de malária no entorno do APM Manso. Entretanto, é importante que esses empreendimentos sejam monitorados pela vigilância epidemiológica dos municípios abrangidos, para que possíveis surtos de doenças transmissíveis sejam identificados de forma precoce, possibilitando a tomada de medidas de controle. / Brazil is one of the 20 countries in the world where hydroelectric power plants represent the largest stake in the power supply matrix, namely 92% of the total power output in the country. Due to its huge territorial area and large availability of rivers with a high hydroenergetic potential, Brazil has implemented around two thousand power plant projects since the 1970´s. Although a “clean power” is their final product, some of these power plants trigger “echological disasters” that play a detrimental role in the public health system. Previous assessment of the impacts caused by undetakings responsible for such liabilities is recommended by both the World Health Organization (WHO) and the Health Surveillance Secretary of the Brazilian Health Ministry, which is fundamental for the well-being of the environment and public health. Changes in the environment affect several vector population dynamics, therefore provoking disease outbreak. In 1999, the operation of Manso Multiple Use Reservoir again shed light on the issue of the likelihood of impacts caused not only by the environmental changes provoked by the installation of power plants, but also by the possible appearance of new sites disseminating human diseases transmitted by vectors, which has motivated the development of this paper. Considering the onset of the power plant operations, the period under view covers 1999 through 2004. Information source is based on data bank raised by FURNAS, and other refflecting official data produced by domestic and foreign institutions. The results, though, did not show evidence of possible impacts on human health in what concerns the occurrence of malaria within Manso Multiple Use Reservoir. However, it is important that such undertakings be monitored through epidemiologic surveillance within the range of the impacted municipalities so that possible infectious disease outbreaks may be early identified, and control measures may be put into practice.

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