Slime
Mostrando 1-12 de 472 artigos, teses e dissertações.
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1. Development of innovation routes for iron ore using high intensity magnetic separators
Abstract The mineral processing of low-grade iron ores commonly generates large volumes of slime, which are disposed as tailings. Modern mining requires strives to eliminate the use of tailings dams in a maximum effort to increase metallurgical recovery, the security and reduction of the operational cost. This research aims for the recovery of iron contained
REM - International Engineering Journal. Publicado em: 2022
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2. Large strain consolidation analyses of fine tailings disposal in mining pits
Abstract Herein, three-dimensional analyses of large strain consolidation applied to tail ings disposal in mining pits is studied. The main goal is to estimate filling time and, ac cordingly, the capacity of the pit. Other useful results, such as dry density profiles and water pore pressure generation are also obtained. Two different slimes from the iron or
REM, Int. Eng. J.. Publicado em: 2020-09
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3. Preserve Planet EARTH. If not you, WHO? If not Now, WHEN?
Abstract Herein, three-dimensional analyses of large strain consolidation applied to tail ings disposal in mining pits is studied. The main goal is to estimate filling time and, ac cordingly, the capacity of the pit. Other useful results, such as dry density profiles and water pore pressure generation are also obtained. Two different slimes from the iron or
REM, Int. Eng. J.. Publicado em: 2020-09
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4. Allergic contact dermatitis to slime,
Resumo Dados de experimentos de campo conduzidos em parreirais de uva de mesa da variedade Festival, em Petrolina-PE, no período de outubro/2009 a novembro/2010, foram usados para avaliar a influência da cobertura plástica sobre o microclima, produtividade e impacto econômico de parreirais. Foram estudados três tratamentos: sem cobertura (SC); com cober
An. Bras. Dermatol.. Publicado em: 2020-03
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5. Staphylococcal slime layers and biofilm from different origins
RESUMO: O gênero Staphylococcus abrange algumas das bactérias patogênicas mais importantes tanto para humanos como para animais. Ele é responsável pela mastite bovina e otite canina, além de estar presente na microbiota de animais e como contaminante em alimentos. Sua patogênese está relacionada à formação de cápsula e biofilme, que contribuem p
Cienc. Rural. Publicado em: 16/05/2019
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6. Evaluation of grinding circuits for iron ore
Abstract Grinding has become one of the most important unitary operations for producing pellet feed for direct reduction from low-grade ores and small liberation size, such as compact itabirites. The aim of this study was to evaluate and compare two grinding circuits in an industrial iron ore plant, by evaluating the current operation through sampling, indus
REM, Int. Eng. J.. Publicado em: 2019-03
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7. Influence of attrition variables on iron ore flotation
Abstract The presence of slimes is harmful to the flotation process: the performance and consumption of reagents are negatively affected. Traditionally, the desliming stage has been responsible for removing slimes. However, depending on the porosity of the mineral particles, desliming may not be sufficient to maximize the concentration results. An attrition
REM, Int. Eng. J.. Publicado em: 2018-03
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8. Predictive modeling of Pseudomonas fluorescens growth under different temperature and pH values
Abstract Meat is one of the most perishable foods owing to its nutrient availability, high water activity, and pH around 5.6. These properties are highly conducive for microbial growth. Fresh meat, when exposed to oxygen, is subjected to the action of aerobic psychrotrophic, proteolytic, and lipolytic spoilage microorganisms, such as Pseudomonas spp. The spo
Braz. J. Microbiol.. Publicado em: 2017-06
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9. Biofilm production and beta-lactamic resistance in Brazilian Staphylococcus aureus isolates from bovine mastitis
Abstract Staphylococcus spp. play an important role in the etiology of bovine mastitis. Staphylococcus aureus is considered the most relevant species due to the production of virulence factors such as slime, which is required for biofilm formation. This study aimed to evaluate biofilm production and its possible relation to beta-lactamic resistance in 20 S.
Braz. J. Microbiol.. Publicado em: 2017-03
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10. Sphygmomanometers and thermometers as potential fomites of Staphylococcus haemolyticus: biofilm formation in the presence of antibiotics
BACKGROUND The association between Staphylococcus haemolyticus and severe nosocomial infections is increasing. However, the extent to which fomites contribute to the dissemination of this pathogen through patients and hospital wards remains unknown. OBJECTIVES In the present study, sphygmomanometers and thermometers were evaluated as potential fomites of
Mem. Inst. Oswaldo Cruz. Publicado em: 16/02/2017
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11. Comparison of methods for the detection of biofilm formation by Staphylococcus aureus isolated from bovine subclinical mastitis
Biofilm formation is considered to be a selective advantage for Staphylococcus aureus mastitis isolates by facilitating bacterial persistence in the udder. It requires attachment to mammary epithelium, proliferation and accumulation of cells in multilayers. The objective of this study was to determine the sensitivity and specificity of three techniques for t
Braz. J. Microbiol.. Publicado em: 17/05/2013
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12. FAAS determination of Ag(I) in water, anode slime, rock and cream samples by solid phase extraction method based on sepabeads SP207/5-(p-dimethylaminobenzylidene) rhodanine combination
Um método simples e confiável para separação/pré-concentração de Ag(I) utilizando o reagente 5-(p-dimetilaminobenzilideno) rodanina e o adsorvente Sepabeads SP207 seguido de sua determinação por espectrometria de absorção atômica com chama (FAAS) foi desenvolvido. As condições ideais do método para a separação/preconcentração de Ag(I) fora
J. Braz. Chem. Soc.. Publicado em: 2013-05