997 resultados para Engenharia ambiental - Legislação
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Pós-graduação em Engenharia de Produção - FEB
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Given the increasing demand for fossil fuels to power the engines of the global economy, and also the slow process of synthesis of oil, it becomes necessary to develop new sources of renewable energy in addition to improve promising sources that already exist, turning them competitive. Based on this, biomass is shown very promising between the most popular energy sources due to its availability, applicability, and above all, the fact of not emitting green house gases when analyzing the whole carbon cycle. In this sense, this work presents, through an environmental, technical and economic analysis, the impact in an aluminum mill of replacing the use of electricity, in one process, by a boiler fueled with biomass from waste process of packaging the finished product with pallets. Thus, besides the reduction of CO2 emissions, financial gains are targeted, since the main goal of the corporations that require such power is to maximize its profits
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Os sistemas convencionais de produção agropecuária são considerados grandes causadores de impactos ambientais, tais como degradação do solo, poluição e assoreamento dos rios, destruição da vegetação nativa, perda de biodiversidade e contaminação dos alimentos, o que conseqüentemente induz o aparecimento de problemas sociais, econômicos e ambientais. Os sistemas naturais em bom estado de conservação oferecem serviços ambientais que são vitais para o ser humano. Diante disso, torna-se necessário compatibilizar a preservação dos recursos naturais com a produção agropecuária. Para a manutenção da saúde ambiental de uma microbacia hidrográfica submetida à produção agrícola, as matas ciliares, encontradas ao longo das margens da rede de drenagem e ao redor das nascentes, exerce importantes funções do ponto de vista hidrológico, ecológico e geomorfológico. O presente trabalho teve como objetivo geral propor medidas de adequação ambiental para a microbacia da cabeceira do córrego do Taquari (3.260 ha) no município de Leme/SP. Como objetivos específicos teve-se: a) delimitar as Áreas de Preservação Permanente (APP’s) e Reserva Legal (RL), conforme a legislação ambiental vigente e b) realizar uma proposta de adequação ambiental para a microbacia, considerando a sua estrutura fundiária. Através de estudo de caso realizado nesta microbacia, que faz parte do Programa Estadual de Microbacias Hidrográficas do Estado de São Paulo, procurou-se por meio de um banco de dados cartográfico, gerar no final, um mapa de adequação ambiental. A microbacia possui 62,5% de sua área ocupada por cultura de canade- açúcar e 16,6% por culturas anuais, com maior destaque para milho e algodão. Na microbacia existem 71 propriedades rurais, sendo que 51 (71,8%) delas apresentam áreas menores que 30 hectares, se encaixando como...(Resumo completo, clicar acesso eletrônico abaixo)
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As Unidades de Conservação são sub-divididas em duas categorias: Proteção Integral, com objetivos de manutenção do ecossistema livre da interferência humana na qual é permitido apenas o uso indireto; e de Desenvolvimento Sustentável, que tem por objetivo equilibrar a conservação da natureza com o uso sustentável dos recursos naturais. O Parque de Jacupiranga era localizado na região sul do estado de São Paulo, denominada Vale do Ribeira, sendo criado em 1961 com aproximadamente 141 mil ha e cerca de 8 mil moradores presentes no seu interior, incluindo comunidades tradicionais, quilombolas, e agricultores migrantes de outros estados. O mosaico de Jacupiranga foi criado em 2008, com o objetivo de atender reivindicações dos moradores que sofriam restrições de suas atividades por estar dentro de uma unidade de conservação de proteção integral, com isso, o antigo PEJ sofreu a recategorização, e foram criadas 3 unidades de proteção integral e 7 de uso sustentável na antiga área do parque. O objetivo foi analisar as mudanças socioeconômicas e ambientais das famílias que sofreram com a recategorização do antigo Parque Estadual do Jacupiranga para a Reserva de Desenvolvimento Sustentável (RDS) dos Quilombos de Barra do Turvo e a Área de Proteção Ambiental (APA) do Planalto do Turvo, Mosaico de Jacupiranga/SP, onde a legislação ambiental permite a presença de moradores bem como suas atividades de subsistência. A coleta de dados foi feita pelo processo de entrevistas estruturadas realizadas com 12 moradores escolhidos por indicação dos próprios moradores das áreas tanto da APA quando da RDS. Com isso, pode-se observar uma maior liberdade nas atividades de uso da terra praticadas pelos moradores, contudo, mesmo com a recategorização, os investimentos públicos locais não são suficientes para propiciar uma boa qualidade de vida para as famílias das áreas analisadas
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This work is resulted of studies about the urban circulation in the modern cities. It was developed from two case studies: the city of São Paulo, specifically Santo Amaro's neighborhood and the city of Regensburg in Germany. The urban circulation of these places was analyzed starting from the premise that the daily of the inhabitants is a relevant factor to be considered. It was researched the types of transportation, the accessibility, and the clearance of public transportations. One of the main purposes of this work was to present general guidelines for the improvement urban circulation in the modern cities, as well as to supply didactic material that contribute to the reflection about urban circulation focusing priorly on the problems of traffic of driving force vehicles
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Nowadays environmental pollution can be identified as a major problem in developed and developing countries. This is the result of several factors, such as inappropriate use of natural resources, inficiente legislation and not ecological awareness. Moreover, many other procedures as incorrect use of chemicals still contributed to the worsening of the problem. In this work, we develop a working with the environmental ideals, aiming to contribute to the decomposition of organic material through decomposition of rhodamine in TiO2 thin films on a silicon substrate. The degradation performance was monitored with the aid of techniques such as atomic force microscopy, transmission electron microscopy, field emission gun scanning electron microscopy, Fourier transform spectroscopy, thermal and photocatalytic analyses
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Currently exists a growing concern for the preservation of the environment Around the world, the environmental awareness in Brazil has strengthened during the past two decades. This concern in Brazil arises from the creation of mechanisms of supervision and punishment on the part of the environmental agencies. In order to meet the pertinent legislation many public and private companies have performed dehydration of waste generated in the process of treatment of industrial effluents, waste water and water treatment in order to reduce transport and disposal costs. The use of geotextile tubes has proven technically and economically feasible to be applied in various situations from water treatment to mining tailings. This work presents the solution adopted for an environmental liability in water treatment plant through the use of geotextile tubes to reduce the water content of the disposal. We evaluated the size distribution curves, Atterberg limits, and chemical composition of the residue. Found high concentrations of aluminum in the waste which would characterize environmental pollution if disposed off directly in nature with no treatment
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Hybrid composites combining metal plates and laminates with continuous fiber reinforced polymer, called fiber-metal (CHMF), have been particularly attractive for aerospace applications, due mainly to their high mechanical strength and stiffness associated with low density. These laminates (CHMF) consist of a sandwich structure consisting of layers of polymer composites and metal plates, stacked alternately. This setting allows you to combine the best mechanical performance of polymer composites reinforced with long fibers, to the high toughness of metals. Environmental effects should always be considered in the design of structural components, because these materials in applications are submitted to the effects of moisture in the atmosphere, the large cyclical variations of temperature around 82 ° C to -56 ° C, and high effort mechanical. The specimens of fibermetal composite were prepared at EMBRAER with titanium plates and laminates of carbon fiber/epoxy resin. This study aims to evaluate the effect of different environmental conditions (water immersion, hygrothermal chamber and thermal shock) of laminate hybrid titanium/carbon fiber/epoxy resin. The effects of conditioning were evaluated by interlaminar shear tests - ILSS, tensile, and vibration free
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This work analyzes the importance of public policies in the process of urban-environmental preservation of the Alvares Machado city at state of Sao Paulo in Brazil, where priority was given to questions related to cultural heritage. Adopting the concept of territory as base to understand the complexities in the city, this work clarifies and contextualizes the historical heritage legislation through the Master Plan and the City Statute. The work also focuses on the contribution of the geographer toward studies related to urban-environmental planning.
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In Brazil, there are three main codes that surround the issue of right or possession of various lands according to concepts of ownership or purchase. When it comes to indigenous issues in Brazil is difficult to say which legal code applies more fairly the native population of the country. In the case of the Indians who have their reserves near urban areas there is such a conflict of laws becomes more evident and takes even greater than in other regions of Brazil. As is the case in the indigenous villages of the District of Jaragua in Greater São Paulo, the Tekoá YTU and Tekoá Pyau. The two villages are located in northeastern São Paulo and currently are surrounded by continuous growth and disorderly city of Sao Paulo while their inhabitants fight to preserve the customs and traditions of the Guarani people. They prevail on the City Statute (2001), the Indian Statute (EDI) Environmental Laws and the National Council of Environment (CONAMA) and the Forestry Code, the latter solely because they are near the State Park Jaragua - area environmental preservation
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The increasing application of structural composites in the aerospace industry is mainly due to its low specific weight coupled with its excellent mechanical properties when in service. As a result of climatic variations that pass the aircraft is of paramount importance to study the influence of weathering on this type of material when subjected to such changes. The purpose of this work is to evaluate the mechanical behavior of specimens of kevlar fiber /epoxy matrix composites, by dynamic mechanical thermal analysis (DMA) and interlaminar shear strength tests (ILSS), after passing through three environmental conditioning: saline fog, hygrothermal and ultraviolet radiation. From the results, we concluded that the laminate was molded supplied homogeneously, not presenting problems such as porosity, delaminations or cracks inside. After a period of 625 hours of exposure to hygrothermal conditioning, we observed a 1,2% maximum of absorption of moisture. Samples subjected to the conditioning by UV irradiation (600 hours) and salt spray showed a reduction of about 24,30% and 32,30%, respectively, on the shear strength (ILSS). In DMA analysis is not observed significant changes on the glass transition temperature. However, when considering the storage modulus of the samples conditioned by UV radiation (1200 hours), salt spray and hygrothermal conditioning there is an increase of 5,34% , 7,19% and 5,57% respectively
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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This work aims to investigate the presence of algebra in Brazilian school legislation, from 1980 to the present day. The research was developed through qualitative research, with phenomenological approach, using hermeneutic procedures for the analyzes of legal texts. Survey data were obtained through a survey about the educational legislation, specifically referring to the elementary school, guided by the question how is the presence of algebra in brazilian school legislation that organizes the elementary school?. In possession of the data, the analyzes were carried out considering the historical, social and political environment in which the laws were introduced, focusing the educational landscape of the time, as well as the movements that influenced the teaching of mathematics in the country. The analysis of each text -law were arranged in a row explanatory tables of a meta understanding about the observed. The meta understanding of the documents was drawn up on the basis of the convergence of analyzes that resulted in nuclear ideas of the law texts. At the end a comprehensive synthesis is presented, outlining the movement in which algebra is inserted in schools, through the educational legislation