Compression Chamber
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Compression of the Left Atrium and Pulmonary Veins Due to Ascending and Descending Aortic Aneurysms
Abstract An 89-year-old female patient presented to our cardiology outpatient clinic complaining of shortness of breath and back pain. Chest X-ray demonstrated a widened mediastinum. Transthoracic echocardiography showed an ascending aortic aneurysm and the modified apical 5-chamber view showed that left atrium was compressed between the ascending and descen
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-04
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2. Sobrevivência e viabilidade de escleródios de Botrytis squamosa no solo
RESUMO Em experimento de campo quantificou-se a sobrevivência e a viabilidade de escleródios de Botrytis squamosa no solo. Cem escleródios multiplicados pela técnica de esfregaço de micélio em meio de cultura BDA foram colocados em saquinhos feito de tecido voal. Em armação de madeira contendo solo, colocaram-se 12 repetições respectivamente na sup
Summa phytopathol.. Publicado em: 14/10/2019
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3. Polyhydroxybutyrate Composites with Random Mats of Sisal and Coconut Fibers
Biodegradable polymeric composites using natural fibers have been investigated aiming to mitigate environmental impacts. In this paper, polyhydroxybutyrate (PHB) composites obtained using random mats of sisal and coconut fibers by compression molding in a hydraulic press, and the fiber content varied between 10% and 15% relative to the weight of the polymer.
Mat. Res.. Publicado em: 22/12/2016
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4. Blocos para execução de alvenaria de vedação empregando garrafas pet: avaliação mecânica e termoacústica
Recycling and reuse of materials is the most evident solution regarding sustainable development. One relevant aspect to this development refers to the integration of engineering to devise ways that enable the reuse of materials considered as waste, but with great potential of applicability in the building industry itself, through the generation of appropriat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2012
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5. Desenvolvimento de um sistema de purificação de água com bomba de calor / Development of a water purification system with heat pump
The simplest process for water to reach adequate purity is the conventional distillation, however this method has drawbacks such as their high expense with electric energy and their high water consumption. Searching alternatives to produce purified water with saving energy and water cooling, but with production as purity as conventional, there is the possibi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/05/2011
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6. Implementação e avaliação de desempenho de estratégias de controle aplicadas em um sistema de armazenamento refrigerado / Implementation and performance evaluation of control strategies applied in a storage system for refrigerated
The cold storage of agricultural products intended to meet a demand for healthier products by markets and consumers. You can also give producers an alternative to extend the time for the marketing of products stored. Cold storage is important for a better conservation of perishable products. Because with the decrease in storage temperature, the metabolic rea
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/01/2011
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7. Study for use the wastes of the paper manufacture in the road construction / Estudo para a utilização de resíduo da fabricação de papel na construção rodoviária
The paper and pulp industry represent one of the most expressive industrial sector around the world, being of great importance to the world economy. In South America, because of the wide forest resources, Brazil and Chile are the largest pulp-producing. Brazil produces around 6 million tons of pulp per year, among which 98% of the pulp are produced by the bl
Publicado em: 2010
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8. UTILIZAÇÃO DE ÓLEO DE GIRASSOL COMO COMBUSTÍVEL EM UNIDADE DE POTÊNCIA MONOCILINDRO CICLO DIESEL / USE OF CRUDE SUNFLOWER OIL AS FUEL IN A DIESEL CYCLE MONO-CYLINDER ENGINE
The many oil crises that have occurred in the past decades and the dependence of the Brazilian energy matrix on fossil fuels, as well as the environmental problems caused by their use, have pressed for advances in the search for new alternative fuels and, in a way, also made them possible. Fuels made from vegetable oils are particularly interesting, as they
Publicado em: 2009
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9. Control strategies in refrigerated chamber for vapor compression / Estrategias de controle em camara de refrigeração por compressão de vapor
O armazenamento de produtos perecíveis em sistemas refrigerados permite conservar por mais tempo sua qualidade para consumo, atender a padrões mais rígidos de qualidade, prolongar a vida de prateleira, e muitas vezes alcançar mercados antes inalcançáveis, principalmente para exportação. Além dos fatores de conservação, a redução de custos nos in
Publicado em: 2009
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10. CARBONATAÇÃO EM CONCRETO COM CINZA DE CASCA DE ARROZ SEM MOAGEM / CONCRETE CARBONATION WITH UNGROUND RICE HUSK ASH
This research is part of a project that aimed to evaluate the technical viability of the use of unground (in natura) residual Rice Husk Ash (RHA), without grinding, for structural concrete. The present work investigated the evaluation of the depth and the determination of the carbonation coefficients for concrete with the addition of 15% and 25% residual RHA
Publicado em: 2008
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11. AnÃlise experimental de sistemas de refrigeraÃÃo operando com R-290 e R-600a como fluidos refrigerantes alternativos
Refrigerants CFC (chlorofluorocarbons), as R-12, deplete the ozone layer which protects the surface of the earth, due to the presence of chlorine in their structure. The HCFC (hydrochlorofluorocarbons), as R-22, also have chlorine in their molecule and must be replaced as a refrigerant fluid. In Europe, brand new equipments are not produced with HCFC-22, sin
Publicado em: 2008
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12. Compósitos cerâmicos porosos de alumina - zircônia para aplicação em sistemas de controle térmico para satélites: obtenção e caracterização / Alumina-zirconia porous ceramic composites for application in satellite thermal control systems: obtaining and characterization
To control the temperature of satellites are used various thermal control heat systems. The Loop Heat pipe (LHP) are being developed at the DEM (Space Mechanic and Control Division) of the INPE (National Institute for Space Research) an apparatus for passive heat control of the satellites components. The main components of the LHP system are: capillary evapo
Publicado em: 2008