Parâmetros de erosividade da chuva e da enxurrada correlacionados com perdas de solo e erodibilidade de um Latossolo Roxo de Dourados (MS)

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

Phosphorus reduction by sifting fish waste meal

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

Efeito do extrato aquoso de folhas de guanandi (Calophyllum brasiliense Cambess) no controle do crescimento de Microcystis aeruginosa

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Seleção de bioindicadores aquáticos pela toxicidade aguda e risco ambiental do inseticida fipronil

Pós-graduação em Aquicultura - FCAV

Otimização ecológica dos ciclos ar-padrão Otto e Diesel

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise dinâmica de mecanismo articulado de suspensão com não-linearidade na rigidez devido à geometria e à excitação por desbalanceamento rotativo na condição não ideal

Pós-graduação em Engenharia Mecânica - FEB

Comportamento dinâmico de suspensão eletromecânica: análise da resposta devido ao amortecimento e à rigidez não linear

Pós-graduação em Engenharia Elétrica - FEB

Differential environmental impacts on small and medium size rivers from center of São Paulo State, Brazil, and regional management perspectives

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Simulação e controle de um quadcopter utilizando lógica fuzzy

The present work develops a model to simulate the dynamics of a quadcopter being controlled by a PD fuzzy controller. Initially is presented a brief history of quadcopters an introduction to fuzzy logic and fuzzy control systems. Afterwards is presented an overview of the quadcopter dynamics and the mathematical modelling development applying Newton-Euler method. Then the modelling are implemented in a Simulink model in addition to a PD fuzzy controller. A prototype proposition is made, by describing each necessary component to build up a quadcopter. In the end the results from the simulators are discussed and compared due to the discrepancy between the model using ideal sensor and the model using non-ideal sensors

Composição florística de um trecho da mata ciliar do Córrego dos Antunes município de Jaú - SP

A mata ciliar é de extrema importância para a boa qualidade da água assim como evita a erosão do solo das margens dos corpos d´água. No entanto, grande parte das matas ciliares estão em processo de degradação, sendo sua restauração ou recomposição uma emergência. Para isso torna-se necessário saber qual é a composição florística da mata ciliar a ser recuperada. O presente trabalho analisa a composição florística de um trecho da mata ciliar do córrego dos Antunes, situado no município de Jau/SP, a qual está muito degradada. Foram feitas coletas quinzenais entre os meses de abril a setembro de 2008, nas quais foram coletadas amostras (parte reprodutivas ou ramos com folhas) das espécies arbóreas com lenho e DAP igual ou superior a 5 cm. Foram encontradas espécies exóticas, de mata de brejo, xerófitas e espécies que de fato ocorrem em matas ciliares e entre essas ultimas espécies que não foram relatadas em matas ciliares da região.

Estudo dos mixozoários (Myxozoa : Myxosporea) parasitos dos peixes characiformes Acestrorhynchus lacustris (Lütken, 1875) e Steindachnerina insculpta (Fernández-Yépez, 1948) coletados no Rio do Peixe, médio Rio Tietê, SP, Brasil

The São Paulo State has as one of its main rivers the Tietê, which is an extremely important source because of its biodiversity, use in navigation and mainly as direct supplier of water for thousands of people in the region. Currently, the biodiversity of marine and freshwater ecosystems has been threatened, primarily by environmental problems resulting from the degradation of ecosystems, an example is the stretch of the Middle Tietê River, where the Barra Bonita dam (SP) focused virtually the whole load organic effluents from the metropolitan region of São Paulo, leading to eutrophication with the loss of water quality. This basin is located in the Peixe’s River, a tributary of the Barra Bonita whose sources are on the slopes of the Cuesta de Botucatu, presenting an altitudinal gradient in a good state of conservation and water quality. From another perspective, the studies related to parasites and other pathogens of aquatic organisms have considerably increased the relevance, especially those hosts with potential for growing and marketing, given the significant increase these activities in Brazil and worldwide. Among the agents responsible for diseases in fish are the myxosporean, which can cause major economic damage, with high mortality ratios. Based on the above, this study evaluated the biodiversity of myxosporean parasites of two species of fish Acestrorhynchus lacustris and Steindachnerina insculpta. During the period January to November 2012, 40 specimens of Acestrorhynchus lacustris and 33 specimens of Steindachnerina insculpta were collected from the Peoxe’s river at four different points. The necropsies were performed and all organs were analyzed looking for myxosporean. Only the species Steindachnerina insculpta had their gills parasitized by two species of the genus Henneguya

Diagnóstico ambiental no período frio e seco do Córrego Bandeirantes, município de Rio Claro, SP: parâmetros físicos, químicos e físico-químicos

The present study was concerned with checking the water quality, the recovery of the riparian vegetation and vegetation around the springhead of stream Bandeirantes, such as the inadequate disposal of waste along this stream, which is located in Rio Claro, SP, in the period from March to July of 2010. Aiming to propose mitigation measures to reverse the degradation processes and develop activities to help a better awareness of the population directly related to this water resource. The water quality was analyzed by performing monthly sampling in three different points along the stream. The first point of sampling is in the spring of the stream, the second at the region called estradão and the third near its mouth, when it flows into the Ribeirão Claro, a tributary of the right bank of the Corumbataí river. It was calculated from the Water Quality Index (WQI) developed by Cetesb. The results were compared with current law. The riparian vegetation, which is responsible for the protection of rivers and streams, was observed and examined during the field work. The results indicated the stream as class 2 and the WQI has been classified, in the most of the analysis, such as a water of good quality. However, some parameters showed a worrying situation and highlighted the current situation, with waste deposits, furniture and animal waste into the pit of the stream studied

Análise comparativa de softwares de simulação de onda de cheia e corridas de massa

This scientific research aimed at presenting a comparative analysis of softwares used to represent the processes of flood wave and debris flow. For this, a literature review was performed on these processes and on simulation models used to represent them. Then, a research on scientific database and developers’ websites was performed to identify the softwares used to simulate these processes. This step was performed based on specific criteria such as the type of simulation performed by the software, its practical applications and a user friendly interface. A free distribution and totally functional software was chosen and its simulation mechanisms were tested through a simulation exercise and the results interpreted based on data on measured in the Basin of Ribeirão Marins section Monjolinho located in Piracicaba - SP. With respect to the processes, it was sought to present the dynamics, constraints, parameters and variables used to understand them and for the simulation models were presented the conceptual aspects of mathematical modeling including the steps of the simulation process and the different types of simulation models used to represent them. In total, 20 softwares were identified, and the software object of analysis was the ABC 6 that performs simulation of flood wave. Through the simulation exercise, it was observed that were presented overestimated values of flow compared to measured data in the basin. For both hypotheses were raised about the causes of the discrepancy between the observed and simulated flow. It has been concluded that the simulation process consisted of a complex procedure where generalizations, misrepresentations and simplifications may occur due to the data used and the method adopted, but it is a useful tool in planning and decision making in various types of studies and environmental projects

Análise das possibilidades de integração entre programas ambientais de usinas hidrelétricas e sistemas de gestão ambiental

A avaliação de impacto ambiental tem sido muitas vezes, vista apenas como um procedimento burocrático para a obtenção da licença ambiental, desconsiderando os estudos realizados, após a aquisição da licença e contratando outros serviços para orientar a adoção de um sistema de gestão objetivando boas práticas ambientais. Porém sabe-se que a estrutura geral das metodologias de avaliação de impacto ambiental apresenta muitos pontos semelhantes se comparada à identificação dos aspectos e impactos ambientais de um sistema de gestão ambiental, o que indica uma interface entre os dois instrumentos apesar da execução integrada ainda não ser um procedimento comum na gestão ambiental de empreendimentos. Nesse sentido, o presente trabalho objetivou analisar as possibilidades do emprego de um sistema de gestão ambiental preconizado pela ISQ 14001 para o gerenciamento de programas ambientais decorrentes de processos de avaliação de impacto ambiental e de licenciamento ambiental de usinas hidrelétricas, através do foco específico naqueles progrmas relacionados diretamente com o monitoramento e o controle da qualidade e da qualidade da água do reservatório, que é um fator essencial para a função de produção de um empreendimento hidrelétrico. Para esta análise, utilizou-se o caso da usina hidrelétrica de Santo Antônio, identificando 9 programas ambientais decorrentes de processos de avaliação de impacto ambiental com grandes possibilidades de serem utilizados na estruturação de sistemas de gestão ambiental de usinas hidrelétricas e cuja adequada execução, corrobora com a integração entre os respectivos instrumentos além de corresponder à necessidade de compatibilização dos instrumentos de política ambiental na busca de um desenvolvimento com adequada proteção ambiental e de uma atuação mais consciente das organizações

Cogeração em uma indústria automobilística

The search for energy efficiency improvement is a common concern in many companies. Cogeneration is a well known technique but not so spread in Brazil, despite its potential for energy costs reduction through heat recovery from prime movers. In this work, a preliminary technical and economic study is carried out for a cogeneration plant application in an automotive industry of São Paulo. Though mathematics modeling, three 2435 kW internal combustion engines are selected. When compared to the current status (no cogeneration), annual savings of about 2,2 MR$ are obtained, resulting a almost 3 years payback