Oil Pollution
Mostrando 1-12 de 74 artigos, teses e dissertações.
-
1. Hydraulic System Onboard Monitoring and Fault Diagnostic in Agricultural Machine
Abstract Agricultural Machinery as an off-road vehicle is the backbone of the World agricultural industry. Its main function is to operate as a prime mover and support the power requirements to function the various type of draft implements. In this regards, the hydraulic system is an important part and is controlled by the propagated oil which is cleaned by
Braz. arch. biol. technol.. Publicado em: 24/10/2019
-
2. Temporal changes in biological traits of diatom communities in response to an oil spill in a subtropical river
Abstract: Diatom growth strategies, which are used as a proxy to analyze disturbances and environmental impacts, can also provide reliable information about environmental gradients. In this study, we used diatom communities and biological traits to assess the structure of epilithic diatoms after an oil spill in a large tributary of the Iguaçu River (Paraná
An. Acad. Bras. Ciênc.. Publicado em: 23/05/2019
-
3. CASOS INVESTIGATIVOS PARA A PROMOÇÃO DA CSCL NO ENSINO SUPERIOR DE QUÍMICA
This paper addresses a didactic activity based on computer-supported collaborative learning (CSCL) principles applied to a scientific communication course offered to undergraduate chemistry students. We investigated the dynamics of interactions among the students within the groups focusing on skills of conversation described in the Collaborative Learning Mod
Quím. Nova. Publicado em: 2017-09
-
4. Química Sem Fronteiras: o desafio da energia
Coal, natural gas and petroleum-based liquid fuels are still the most widely used energy sources in modern society. The current scenario contrasts with the foreseen shortage of petroleum that was spread out in the beginning of the XXI century, when the concept of "energy security" emerged as an urgent agenda to ensure a good balance between energy supply and
Quím. Nova. Publicado em: 2013
-
5. Perspectivas para a contribuição do uso do etanol no transporte público urbano, visando à redução da poluição atmosférica - estudo de caso: Projeto Best / Perspectives to the contribution of ethanol utilization in the public urban transport, aiming to reduce air pollution - Case study: BEST Project
Diesel oil is the fuel with major importance in the automotive energy matrix in Brazil, corresponding to nearly half of the total fuel volume consumed in the country, apart from being a global option fuel for public urban transport. Diesel oil is a fossil fuel, not renewable, produced from fractioned petrol distillation; its use is linked to local air pollut
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/08/2012
-
6. CaracterizaÃÃo FÃsica, QuÃmica e BiolÃgica da Ãgua na Sub-Bacia B1, do Rio CocÃ, Fortaleza-CE, com Ãnfase nos Aspectos da PoluiÃÃo ao Longo de um Ciclo ClimÃtico / Characterization Physical, Chemical and Biological Water in Sub-Basin B1, Rio Coco, Fortaleza-CE, with Emphasis on Aspects of Pollution Along a Climate Cycle
This study aimed to evaluate the physical, chemical, biological, and the occurrence of both the acute toxicity and the diversity and quantity of phytoplankton biomass, along a climatic cycle, on sub-basin B1, a member of the Cocà River basin, Fortaleza - CE. The sampling occurred monthly on fourteen collecting points in the period of September 2010 to April
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
-
7. Long-term effects of oil pollution in mangrove forests (Baixada Santista, Southeast Brazil) detected using a GIS-based multitemporal analysis of aerial photographs
Vazamentos de petróleo são potenciais ameaças à integridade de ecossistemas costeiros. Em outubro de 1983, devido ao rompimento de um oleoduto, um manguezal com cerca de 300 ha, localizado na costa sudeste do Brasil foi impactado por 3.5 milhões de litros de petróleo. Visando avaliar os efeitos de longo prazo do petróleo sobre a vegetação do manguez
Brazilian Journal of Oceanography. Publicado em: 2012-06
-
8. Ecologia e Conservação de Tartarugas Marinhas Através da Análise de Encalhes no Litoral Paraibano
Five sea turtle species use the Brazilian coast for reproduction and feeding: loggerhead turtle (Caretta caretta), green turtle (Chelonia mydas), leatherback turtle (Dermochelys coriacea), olive turtle (Lepidochelys olivacea) and hawksbill turtle (Eretmochelys imbricata). These species are included in the threatened categories, as much globally, according to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/07/2011
-
9. Avaliação de eficiência de ensaios ecotoxicológicos na detecção de toxicidade em efluentes de refinaria de petróleo
Uma das principais fontes de poluição dos recursos hídricos são os efluentes líquidos industriais. Dentre esses, destacam-se os efluentes de refinaria de petróleo, pois geram efluentes bastante complexos e de difícil tratabilidade. Desta forma, evidencia-se a necessidade de monitoramento contínuo da qualidade desses efluentes, uma vez que são consid
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/04/2011
-
10. DEVELOPMENT OF METHOD FOR DETERMINATION OF AS, SB AND SE IN BIODIESEL AND PETROLEUM BY INDUCTIVELY COUPLED PLASMA OPTICAL EMISSION SPECTROMETRY WITH SAMPLE INTRODUCTION BY HYDRIDE GENERATION (HG ICP / DESENVOLVIMENTO DE MÉTODO PARA DETERMINAÇÃO DE AS, SB E SE EM BIODIESEL E PETRÓLEO POR ICP OES COM INTRODUÇÃO DE AMOSTRA POR GERAÇÃO DE HIDRETOS
With the increasing world population and the consequent increasing in industrial activities and fuel consumption, chemical pollution has been a major problem of the XXI century. Alternatives that can minimize such problems are targets of researches, such as the use of biodiesel, a renewable and less polluting fuel. Elements usually found in low concentration
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2011
-
11. Uso de efluente de biodigestor da suinocultura no cultivo de nabo forrageiro / Use of swine wastewater in oil radish cultivation
O efluente proveniente da suinocultura tem sido aplicado no solo com o intuito de promover uma maior disponibilidade de nutrientes, como nitrogÃnio (N), fÃsforo (P) e potÃssio (K), a diversas culturas e como uma saÃda à disposiÃÃo final desses efluentes em corpos hÃdricos. Entretanto, esta prÃtica preocupa com relaÃÃo à possibilidade de geraÃÃo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/02/2011
-
12. Short-term exposure of mice to cigarette smoke and/or residual oil fly ash produces proximal airspace enlargements and airway epithelium remodeling
Chronic obstructive pulmonary disease (COPD) is associated with inflammatory cell reactions, tissue destruction and lung remodeling. Many signaling pathways for these phenomena are still to be identified. We developed a mouse model of COPD to evaluate some pathophysiological mechanisms acting during the initial stage of the disease. Forty-seven 6- to 8-week-
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-05