Capillary Pressure
Mostrando 13-24 de 292 artigos, teses e dissertações.
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13. Acute effects of physiotherapeutic respiratory maneuvers in critically ill patients with craniocerebral trauma
OBJECTIVE: To evaluate the effects of physiotherapeutic respiratory maneuvers on cerebral and cardiovascular hemodynamics and blood gas variables. METHOD: A descriptive, longitudinal, prospective, nonrandomized clinical trial that included 20 critical patients with severe craniocerebral trauma who were receiving mechanical ventilation and who were admitte
Clinics. Publicado em: 2013-09
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14. Phlebotonics for haemorrhoids
BACKGROUND Haemorrhoids are variceal dilatations of the anal and perianal venous plexus and often develop secondary to the persistently elevated venous pressure within the haemorrhoidal plexus. Phlebotonics are a heterogenous class of drugs consisting of plant extracts (i.e. flavonoids) and synthetic compounds (i.e. calcium dobesilate). Although their preci
Sao Paulo Med. J.. Publicado em: 2013
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15. Desenvolvimento, avaliação e aplicação de um sistema de cromatografia gasosa de alta pressão / Development, implementation and evaluation of a system of high pressure gas chromatography
A cromatografia é uma técnica de separação cuja classificação se dá por meio do estado físico da fase móvel (líquido, gasoso, supercrítico, entre outros). Dentre as técnicas cromatográficas mais utilizadas e cujo conhecimento é bastante conhecido está a cromatografia gasosa. Embora esta técnica tenha sido bastante estudada existem ainda algum
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/08/2012
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16. NUMERICAL ANALYSIS OF THE FLOW OF EMULSION THROUGH STRAIGHT AND CONSTRICTED CAPILLARIES / ANÁLISE NUMÉRICA DO ESCOAMENTO DE EMULSÕES ATRAVÉS DE CAPILARES RETOS E CAPILARES COM GARGANTA
Emulsion can be used as a mobility control agent in enhanced oil recovery methods in order to achieve a more efficient sweep of the reservoir. The application of such technique requires full understanding of how emulsions flow in a porous material. The macroscopic flow behavior can be determined based on the pore scale flow, at which emulsions cannot be trea
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/09/2011
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17. Desenvolvimentos mecânicos e computacionais de suporte às medidas com sensores termoelásticos
The hydrostatic pressure inside the cell or simply cell turgor is an important component of texture in vegetables and is directly related to firmness. The decrease in cell turgor of plant organs is also an indicator of loss of tissue water. This effect can be perceived visually by wilting accompanied by a dry appearance with the loss of brightness and color
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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18. Desenvolvimento de método para medida de permeabilidade superficial de revestimentos de argamassa. / Development of method for measuring the surface permeability of coating mortar.
The phenomenon of permeability refers to the ability with which a fluid is transported through a porous medium, driven by pressure gradient between the material and the external environment. Degradation agents are conducted to the interior of mortar and concrete driven through such a phenomenon. Therefore, it is the permeability as a key parameters for durab
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2011
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19. Prevalence of metabolic syndrome and its association with educational inequalities among Brazilian adults: a population-based study
The present study estimated the prevalence of metabolic syndrome (MS) according to the criteria established by the National Cholesterol Education Program-Adult Treatment Panel III (NCEP-ATPIII) and the International Diabetes Federation (IDF) and analyzed the contribution of social factors in an adult urban population in the Southeastern region of Brazil. The
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-07
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20. Relação entre a oferta e a utilização muscular periférica de oxigênio na transição do exercício leve para o intenso em pacientes com insuficiência cardíaca / Peripheral muscle oxygen delivery-to-utilization mismatch in the transition from mild to heavy-intensity exercise in patients with CHF
Impaired muscle blood flow at the onset of heavy-intensity exercise may transiently reduce microvascular O2 pressure and decrease the rate of O2 transfer from capillary to mitochondria in chronic heart failure (CHF). However, advances in the pharmacological treatment of CHF (e.g., angiotensin-converting enzyme inhibitors and third generation of â-blockers)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/11/2010
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21. Experimental investigation of the liquid volumetric mass transfer coefficient for upward gas-liquid two-phase flow in rectangular microchannels
The gas-liquid two-phase mass transfer process in microchannels is complicated due to the special dynamical characteristics. In this work, a novel method was explored to measure the liquid side volumetric mass transfer coefficient kLa. Pressure transducers were utilized to measure the pressure variation of upward gas-liquid two-phase flow in three vertical r
Brazilian Journal of Chemical Engineering. Publicado em: 2010-12
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22. SNAP OFF OF EMULSION DROPS IN THE FLOW THROUGH A CONSTRICTED CAPILLARY / ANÁLISE DO PROCESSO DE QUEBRA DE GOTA DE EMULSÕES NO ESCOAMENTO ATRAVÉS DE UM CAPILAR COM GARGANTA
The snap off of emulsion drops appears in several industrial activities, including the oil industry. The analysis snap off in a constricted capillary is related to the study of emulsion formation and its characteristics in a porous media. This thesis presents a numerical model based on the conservation equations and lubrification theory developed for Newtoni
Publicado em: 2010
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23. Capillary pressure driven water movement in wet unsaturated porous media: effect of particle electric charge
Experimentos do fluxo da água usando um meio poroso não saturado compoto por diferentes sistemas de α- alumina molhada não-saturada indicam que a carga superficial da partícula diminuiu com o aumento da água movimentada. O movimento máximo de água ocorreu quando a carga superficial era zero. O movimento da água foi afetado pela espessura da dupla ca
Journal of the Brazilian Chemical Society. Publicado em: 2010
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24. Blood loss and transcapillary refill in uncontrolled treated hemorrhage in dogs
OBJETIVE: This study evaluated retroperitoneal hematomas produced by bilateral injury of iliac arteries (uncontrolled hemorrhage), blood volume loss, transcapillary refill, the effects of volume replacement on retroperitoneal bleeding and the hemodynamic changes with and without treatment. METHODS: Initial blood volume was determined with Tc99m-labelled red
Clinics. Publicado em: 2010