Hydrodynamic Evaluation
Mostrando 13-24 de 48 artigos, teses e dissertações.
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13. Avaliação de mancais hidrodinâmicos com descontinuidades geométricas / Evaluation of hydrodynamic bearings with geometric discontinuities
Hydrodynamic bearings are widely used in rotating machines, being the element responsible for the interaction between the rotor and the supporting structure. Therefore, in order to describe the dynamic behavior of the rotating shafts, it is necessary to know the journal bearings characteristics. For this reason, the purpose of this work is to analyze the dyn
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2011
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14. Comparação de modelos hidrodinâmicos simplificados de propagação de vazão em rios e canais
This work has identified, tested and improved simplified flood routing models to verify the advantages and disadvantages presented. The solutions provided by these models were tested by using a full hydrodynamic model considered in this work as an ideal result. The simplified hydrodynamic models used were: A variable parameter kinematics wave model, the Musk
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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15. Project, development and testing In vitro of new model pump for cardiopulmonary bypass : spiral pump / Projeto, desenvolvimento e ensaios "In Vitro" de novo modelo de bomba de sangue para circulação extracorpórea : bomba espiral
A model of blood pump has been developed, the Spiral Pump. This pump has an internal rotor, a conically shaped fuse, containing threads with double entrance on its surface. This rotor is supported by two bearings assembled at a stainless steel shaft, fixed to the housing´s base. The rotation of the conical fuse is generated by magnetic coupling to a motor,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2010
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16. Avaliação de métodos de campo para a determinação de condutividade hidráulica em meios saturados e não saturados
The determination of the hydraulic conductivity of saturated insaturated media for hydrogeologic research is a frequent activity, to academic studies and for practical works. This hydrodynamic parameter is determined by in situ measures, for the insaturated zone the concentric rings and open end hole methodologies are applied and for the saturated zone the s
Publicado em: 2010
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17. Numerical model of oil spill as an environmental management method in contingency plan, applied to São Sebastião channel (SP). / Modelagem numérica do comportamento de derrames de óleo como método de gestão ambiental, em planos de contingência, aplicada ao canal de São Sebastião (SP).
The application of numeric models for analysis of oil spill in the coastal environments becomes one of the most important ways to understand the behavior of the oil in this case of impact, giving subsides to the prediction of the displacement of the patches and allowing best efficiency in the control of the extension of the impact agent. These assumptions gi
Publicado em: 2009
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18. DEVELOPMENT AND VALIDATION OF METHODOLOGY FOR THE EVALUATION OF RUPATADINE BY LIQUID CHROMATOGRAPHY AND CAPILLARY ELECTROPHORESIS / DESENVOLVIMENTO E VALIDAÇÃO DE METODOLOGIA PARA AVALIAÇÃO DE RUPATADINA POR CROMATOGRAFIA LÍQUIDA E ELETROFORESE CAPILAR
Rupatadine is a second generation antihistamine H1, from the pyperidinic group, which inhibits both the histamine and platelet activating factor effects, and is clinically used for the treatment of allergic rhinitis and chronic urticaria. The methods for the evaluation of rupatadine in pharmaceutical products were developed and validated in the present work.
Publicado em: 2009
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19. Produção de celulases e xilanases por Penicillium echinulatum em processo submerso utilizando biorreatores com agitação mecânica e airlift de circulação interna
Cellulolytic enzymes have many uses, particularly in the food, textile, and paper industries. However, their major potential use is in the hydrolysis of cellulose a component of lignocellulosic residues for ethanol fuel production. Among the cellulase-producing microorganisms, mutants of the Trichoderma genus are the most studied and most widely used in the
Publicado em: 2009
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20. DEVELOPMENT AND VALIDATION OF METHODOLOGY FOR THE EVALUATION OF FLUTICASONE BY LIQUID CHROMATOGRAPHY AND CAPILLARY ELECTROPHORESIS / DESENVOLVIMENTO E VALIDAÇÃO DE METODOLOGIA PARA AVALIAÇÃO DE FLUTICASONA POR CROMATOGRAFIA LÍQUIDA E ELETROFORESE CAPILAR
Fluticasone propionate (FP) is a synthetic glucocorticoid with potent anti-inflammatory activity that has been effectively used for the treatment of seasonal and allergic perennial rhinitis, minimizing systemic activity. In the present study, the methods were developed and validaded for assessment of FP in pharmaceutical products. The analysis by reversed-ph
Publicado em: 2009
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21. DEVELOPMENT OF A CAPILLARY ELECTROPHORESIS SYSTEM WITH CONTACTLESS CONDUCTIVITY DETECTION (C4D) FOR THE SEPARATION OF INORGANIC IONS / DESENVOLVIMENTO DE EQUIPAMENTO DE ELETROFORESE CAPILAR COM DETECÇÃO POR CONDUTIVIDADE SEM CONTATO PARA A SEPARAÇÃO DE ÍONS INORGÂNICOS
This work describes the development and evaluation of a home-made capillary electrophoresis (CE) system based on the capacitively coupled contactless conductivity detection (C4D) for the application in capillary zone electrophoresis (CZE). The C4D detection is based on prototypes previously described in the literature. The equipment constructed has a hydrody
Publicado em: 2009
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22. Extração e estudo do polissacarideo soluvel de soja e sua avaliação na estabilidade e reologia de suco de gaviola adicionado de isolado proteico de soja / Extraction and study of soybean soluble polysaccharide and its evaluation on the stability and rheology of soursop juice containing soy protein isolate
Soy based drinks are quite susceptible to sedimentation due the presence of proteins and low pH, requiring addition of food gums to stabilize them. The functional properties of soybean soluble polysaccharide can vary depending on the temperature of extraction and way of drying (freeze or spray dried) of this macromolecule. Moreover, its use as a protein stab
Publicado em: 2009
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23. Synthesis, characterization of biocompatibility and evaluation of bioadhesion of n-carboxymethylchitosan nanoparticles in hybrid networks with poliacrylic acid / Síntese, caracterização e avaliação da biocompatibilidade e bioadesão de nanopartículas de n-carboximetilquitosana em redes híbridas com ácido poliacrílico
Chitosan nanoparticle complexes with polyacrylic acid have been used in nanotechnology, as they improve pharmacological activity, in chemical and biological terms, and in particular, increase drug bioavailability. The aim of this work is to evaluate the biocompatibility and bioadhesion of N-carboxymethyl derivatives of chitosan (N-CMC) with in situ polymeriz
Publicado em: 2009
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24. Atualização de sistema duplicador de pulsos para teste de proteses de valvulas cardiacas / Upgrade of a pulse duplicator system for cardiac valve prostheses evaluation
It has become very frequent the use of mechanic or biological cardiac valve prostheses. These prostheses must be evaluated (in vitro and in vivo tests) in order to be used clinically. The hydrodynamic performance tests are carried out in vitro. The analyses of the test results are very important for the characterizations and classification of a given prosthe
Publicado em: 2008