A tuberculose, uma das principais causas de morbidade e mortalidade no país, apresenta um panorama preocupante, com crescimento número casos diagnosticados. Entre os fatores que contribuem para o aumento da incidência, estão a condições socioeconômicas precárias, desigualdade acesso aos serviços saúde presença comorbidades como HIV diabetes. Além disso, resistência antimicrobiana dificuldade adesão ao tratamento são apontadas desafios significativos controle tuberculose Brasil. O objetivo...

INTRODUÇÃO: A valvuloplastia pulmonar percutânea é um procedimento minimamente invasivo usado no tratamento da estenose pulmonar, que obstrui a válvula e dificulta o fluxo sanguíneo para os pulmões. Utilizando balão inserido por cateter, técnica alivia estreitada restabelece sanguíneo, sendo uma alternativa eficaz à cirurgia aberta, especialmente em casos de congênita ou adquirida. OBJETIVOS: O objetivo do presente trabalho foi realizar levantamento epidemiológico acerca dos Brasil, período...

In the RTM light composite manufacturing process, inorganic fillers are commonly added to resin reduce cost and alter final properties, especially rigidity, even though they also adversely affect processability. The aim of this study is evaluate characteristics, reinforcement permeability, mechanical properties analyze detrimental effects when a variable amount calcium carbonate (CaCO 3 ) resin. addition increased viscosity gel time considerably decreased permeability therefore expected...

This work presents a simplified modeling and simulation approach for energy systems engineering that is capable of providing quick accurate responses during system design. For that, the laws conservation are combined with available empirical theoretical correlations to quantify diverse types flows cross produce tridimensional mathematical model, namely volume element model (VEM). The physical domain interest discretized in space, thus producing algebraic ODEs respect time, whose solution...

The conversion of wave energy in electrical one has been increasingly studied. One example converter (WEC) is the overtopping device. Its main operational principle consists a ramp which guides incoming waves into reservoir raised slightly above sea level. accumulated water flows through low head turbine generating electricity. In this sense, it performed numerical study concerned with geometric optimization an WEC for various relative depths: d /λ = 0.3, 0.5 and 0.62, by means Constructal...

Resin Transfer Molding (RTM) is a manufacturing process in which liquid resin injected into closed mold pre-loaded with porous fibrous preform, producing complex composite parts good surface finishing. flow critical step the process. In this work, numerical study of RTM applications was performed employing general Computational Fluid Dynamics software does not have specific module, making it necessary to use Volume method for filling problem solution. Examples were presented and compared...

Sandwich structures are comprised of two external faces/skins (usually made synthetic fiber/resin) and a core, being lightweight with high stiffness. These when based on foam core commonly processed using liquid molding techniques. In this study, the light resin transfer process is used to inject polymeric (vinyl ester) into porous cavity between impermeable mold walls. The main goal present work study effect different types cores (polyvinyl chloride (PVC) polyethylene terephthalate) faces...

This work studies two different numerical methodologies for the generation of regular gravity waves. Numerical simulations wave were performed with FLUENT® package, using multiphase Volume Fluid (VOF) model to reproduce propagation inside tank. Therefore, it was possible analyze that could be used in future works, mainly study devices sea energy conversion electric energy.

Abstract A simplified two‐dimensional (2‐D) formulation for FCC risers has been developed. The model approximates the mixture of gasoil, steam, and solid catalyst that flows inside riser reactor by an equivalent fluid with average properties. cracking reactions are modeled a 6‐lump kinetic combined two energy equations (gas solid). Due to adopted simplifications, fast simple‐to‐solve computational code was written; nevertheless, it still is sufficiently precise be used design new units...

Resin Transfer Molding (RTM) is one of the composite manufacturing technique that consists in injecting a resin pre-catalysed thermosetting closed mold containing dry fiber preform, where impregnated. In this sense, aim research to study theoretically and experimentally RTM process. Experimental simulations rectilinear infiltration polyester (filled non filled with CaCO3) glass preform were performed cavity dimensions 320 x 150 3.6 mm. Numerical results filling time fluid front position over...

The recent increase in distributed power generation is highlighting the demand to investigate and implement better more efficient distribution grids. High-temperature superconducting (HTS) DC transmission cables have potential address need for their usage expected future. Thermal modeling of HTS a critical tool order understand characterize operation such lines. This paper introduces general computational model cable. A physical model, based on fundamental correlations principles classical...

Vinyl ester resins are widely used in sandwich composite structures. Because of their good resistance to chemicals, flexibility and easy processing, these extensively applied the marine sector. These composites typically manufactured by liquid molding processes, especially infusion. In this study, RTM light was inject polymeric resin into mold cavity, flowing space between impermeable core walls, where fibrous medium was. process, viscosity, gel time curing very important parameters. This...