Liquid Displacement
Mostrando 1-12 de 35 artigos, teses e dissertações.
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1. Square-Wave Voltammetry Determination of Ciprofloxacin in Pharmaceutical Formulations and Milk Using a Reduced Graphene Oxide Sensor
In this paper, a simple, sensitive and precise electroanalytical method was developed using a chemically-reduced graphene-oxide (CRGO)-modified glassy carbon electrode and square wave voltammetry (SWV) for determination of ciprofloxacin in pharmaceutical formulations (tablets) and milk samples. Advantages of this sensor include a potential displacement of 10
J. Braz. Chem. Soc.. Publicado em: 16/09/2019
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2. Operational and energy performance of the tractor-scarifier assembly: Tires, ballasting and soil cover
RESUMO A altura das garras do pneu, o lastro do trator e a cobertura do solo podem influenciar o desempenho operacional e energético do conjunto trator-escarificador. O objetivo deste estudo foi analisar o desempenho operacional e energético do conjunto trator-escarificador, em função da altura das garras do pneu, do lastro e da superfície de rolamento.
Rev. bras. eng. agríc. ambient.. Publicado em: 09/09/2019
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3. Enhancement the Fatigue Life of Floating Breakwater Mooring System Using Tuned Liquid Column Damper
Abstract Safety is a key design criterion for floating structures. A high rate of mooring accidents has been reported over the past decades. Preventing mooring line failure is a key design objective for floating breakwater systems. The mooring system comprises sets of mooring lines anchored to the seabed. These components are exposed to highly cyclic nonline
Lat. Am. j. solids struct.. Publicado em: 22/08/2019
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4. Analysis of a tuned liquid column damper in non-linear structures subjected to seismic excitations
Abstract The behavior of the tuned liquid column damper (TLCD) is analyzed in the control of non-linear structures subjected to random seismic excitations. The structure is modeled as a system of one degree of freedom with incursion in the non-linear range. The Bouc-Wen hysteretic model is used to model the non-linear behavior of the structure. A stationary
Lat. Am. j. solids struct.. Publicado em: 19/07/2018
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5. LIQUID-LIQUID DISPLACEMENT FLOWS IN A HELE-SHAW CELL INCLUDING NON-NEWTONIAN EFFECTS / DESLOCAMENTO DE LÍQUIDOS EM CÉLULA DE HELE-SHAW CONSIDERANDO EFEITOS NÃO NEWTONIANOS
This work studied the displacement of fluids in porous media using a Hele-Shaw cell. Specifically, was investigated experimentally the displacement of a non-Newtonian fluid by a Newtonian in a rectangular Hele-Shaw cell. The Saffman-Taylor or viscous fingering instability occurs when one fluid pushes a more viscous one, and a Hele-Shaw is a convenient tool t
Publicado em: 2010
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6. Detecçăo e estudo da microvazăo de líquidos em fibras de cristal fotônico usando difraçăo na microestrutura
In this work, we introduce photonic crystal fibers and the study of liquid flow within those, by observing changes in the diffraction pattern generated in a a laser beam laterally incident in the fiber. By launching the laser beam perpendicularly onto the side of the photonic crystal fiber, a characteristic diffractive pattern is created by the cladding micr
Publicado em: 2010
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7. Deslocamento do abomaso em bovinos no Estado de Pernambuco: fatores de risco, aspectos clínicos, laboratoriais e avaliação terapêutica
The continuous genetic selection for high milk production in association with greater digestive capacity and corporal depth increases the susceptibility for abomasopathies including abomasal displacement. The present work aimed to accomplish a retrospective study on abomasal displacement in 36 cattle attended at Bovine Clinic, Garanhuns Campus, Federal Rural
Publicado em: 2009
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8. Effect of monomer content in the monomer-polymer proportion on complete denture teeth displacement / Efeito do conteudo de monomero na proporção monomero-polimero no deslocamento dental em protese total superior
The purpose of the study was to verify the linear displacement of the teeth in complete upper denture made with acrylic resin, with monomer content indicated by the manufacturer, with 25% in excess and 25% less, in the conventional and microwaves polymerization techniques. Thirty casts were made with type III stone plaster, based on silicone mould, represent
Publicado em: 2009
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9. Swallowing in Parkinsons disease before and after riboflavin: complaint, functional aspects and impact on quality of life. / Deglutição de parkinsonianos pré e pós riboflavina: queixa, aspectos funcionais e impacto na vida diária.
Objective: to verify the relation between clinical complaint, swallowing functional aspects and the impact on quality of life related to voice and swallowing in patients with Parkinsons disease submitted to treatment with riboflavin during one year period. Method: sixteen patients with Parkinsons disease participated in the study; mean age was 67.25 years ol
Publicado em: 2009
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10. Immiscible liquid-liquid displacement in capillary tubes: viscoelastic effects
The displacement of a fluid by liquid injection occurs in some practical applications like oil recovery in porous media and cementation of drilling wells. The dimensionless numbers that govern this problem are the capillary number, Reynolds number and viscosity ratio. An overview of selected oil recovery processes shows that hydrolyzed polyacrilamide and bio
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-06
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11. Efeito da temperatura no transporte dos íons potássio e nitrato no solo / Effect of temperature on the transport of the potassium and nitrate ions in a soil
In the study of solute dynamics in porous media, it is of extreme importance the knowledge of the medium and transporting liquid properties as well as of external factors as temperature. In this sense, the objective of this work was the determination of parameters for potassium and nitrate ions under different temperatures in miscible displacement experiment
Publicado em: 2007
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12. Technical the application of glyphosate to agricultural product certifications / Tecnologia de aplicação do glyphosate para certificação de produtos agrícolas
This study was carried out to define parameters for glyphosate application in controlling the Brachiaria decumbens grass, by using a centrifugal pulverization system to establish possible technical criteria that can be screened. The pulverization system was developed on such a way to provide uniform pulverization conditions, therefore turning possible the ob
Publicado em: 2007