Liquids Permeability
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Avaliação das propriedades de transporte de massa contendo adições minerais / Evaluation of the mass transport containing mineral admixtures
The durability of reinforced concrete structures is damaged by the degrading action of the penetration of substances in the form of gases, vapors and liquids through the pores and cracks. It is known that water both in its pure form or containing dissolved ions such as chloride, sulphate, carbon dioxide or oxygen ions, can compromise the durability of concre
Publicado em: 2009
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2. Determinação da permeabilidade em madeiras brasileiras de florestas plantadas / Permeability measurements in brazilian wood of reforestation species
Este trabalho tem por finalidade o estudo da permeabilidade da madeira, com ênfase nas espécies de florestas plantadas do gênero de Pinus elliotti, Eucalyptus grandis e Eucalyptus citriodora. Com a sua determinação, avalia-se o quanto uma dada espécie de madeira é permeável a preservativos (tratamentos químicos) e o quanto ela é permeável a aplica
Publicado em: 2007
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3. Uma contribuiÃÃo ao estudo da sedimentaÃÃo gravitacional em batelada
Thickeners are equipments that uses the gravitational force as separating agent of suspended solid particle in liquid chains of industrial processes. The frequent use of the settlers in chemical industries is the reason of the interest on the development of studies on the subject. The batch sedimentation is the starting point for the project of continuous in
Publicado em: 2007
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4. Acidentes com transporte rodoviario de produtos perigosos : analise e aplicação de modelo conceitual georreferenciado para avaliação de risco ambiental no minicipio de Campinas- SP / Highway transportation of hazardous materials accidents : characteristics and use of a conceptual model for analyzing environmental risk at Campinas, São Paulo State, Brazil
Highway accidents involving a vehicle transporting hazardous goods may cause extensive material, human and mainly environmental damage. Most of the areas crossed by highways are environmentally vulnerable due to the presence of creeks and rivers, different land use and possibility of the ground water being reached by the transported products. The county of C
Publicado em: 2006
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5. Reversibility and reproducibility of histamine induced plasma leakage in nasal airways.
Plasma exudation is one cardinal factor in airways defence and inflammation. In inflammatory airway diseases such as rhinitis and asthma, however, plasma leakage may also have a pathogenetic role. Experimental data from animals indicate that highly sensitive, active, and reversible processes regulate the vascular and mucosal permeability to macromolecules. W