Glass Wool
Mostrando 1-12 de 46 artigos, teses e dissertações.
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1. Characterization of mineral wools obtained from ornamental rock wastes
Abstract The study aimed to characterize the mineral wools obtained from wastes of the cutting step of marble and granite, in order to evaluate the possibility of their use on an industrial scale. Mixtures of marble and/or granite wastes were prepared in order to reach the chemical composition of rock and glass wools. The batches were melted in an electric a
REM, Int. Eng. J.. Publicado em: 2018-07
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2. Determining the Contribution of Ventilation and Insulation of Broiler Breeding Houses in Production Performance Using Analytic Hierarchy Process (AHP)
ABSTRACT This study was conducted using Analytic Hierarchy Process (AHP) in order to rank broiler breeding farms in Zanjan province, Iran, regarding buildings, installations, and equipment to determine their effects on production factors. Data on 108 farms were collected using designed forms. This data was analyzed based on the effectiveness of each paramete
Braz. J. Poult. Sci.. Publicado em: 2018-04
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3. Cement plate slab production with the incorporation of glass wool waste ground
Abstract One of the characteristics of Civil Construction is its ability to absorb a wide range of wastes to produce new products. Therefore, the objective of this study was to evaluate the behavior of cement plates produced with the addition of ground glass wool waste and in natura, in shredded form. The tensile strength tests in bending and permeability we
REM, Int. Eng. J.. Publicado em: 2018-03
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4. Influence of the type of fastening of multi-layered closing panels on the estimate of the sound transmission loss
Abstract Industrialized closing systems appear as rational solutions in steel-structured construction. These closing systems, consisting of multi-layered panels, have been applied in projects where it is intended to obtain a high sound transmission loss without raising the cost and without using a lot of mass. However, acoustic isolation depends on several f
REM, Int. Eng. J.. Publicado em: 2016-12
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5. Effects of filtration methods on the neutralization yield of crude marine fish oil
The evaluation of filtration methods on the yield and oleochemicals characteristics on the crude fish oil from the soapstock of marine fish for purposes of nutrition has been conducted in this work. The analytical properties of the crude and the neutralized oil with three excesses of sodium hydroxide (NaOH, 20%, 40% and 60%) were carried out on two different
Food Sci. Technol. Publicado em: 2015-03
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6. Estudo da utilização de resíduos industriais de lã cerâmica e lã de vidro em argamassas e concretos / Estudo da utilização de resíduos industriais de lã cerâmica e lã de vidro em argamassas e concretos
A questão de resíduos industriais no que se refere a aspectos ambientais é premente. A geração de passivos ambientais, bem como o esgotamento dos recursos naturais são questões que vêm assumindo posição de destaque no gerenciamento dos resíduos, interferindo inclusive diretamente no mercado. As fibras cerâmicas têm grande aplicação nas indúst
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2011
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7. UTILIZAÇÃO DE RESÍDUO DE LÃ DE VIDRO EM FABRICAÇÃO DE CONCRETO
The waste generation in industrial processes is mostly unavoidable. The glass wool, greatly used in mineral-metallurgical activities, loses its thermal insulating features turning into an industrial waste due to work conditions. The prime goal of this work is to research the use of industrial waste of glass wool, though the incorporation in concrete matrix,
Publicado em: 2007
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8. Modelagem da transferência de calor combinada por condução e radiação em isolantes térmicos de edificações
New insulation materials are being used in building industry to reduce electric energy consumption due to presence of HVAC (Heating, Ventilation and Air Conditioning) systems or to improve the thermal comfort of non-conditioned environments. An insulation material used in ceilings is the glass wool. The glass wool is considered as a semitransparent material,
Publicado em: 2005
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9. O comportamento fisico-quimico da mistura SF6+H2 irradiada pelo laser de CO2 : propriedades moleculares e reatividade quimica
This work had the intention of studing two relations envolved with the laser induced photochemical reactions. These reactions were those induced on the gas mixture of SF6 and H2 alone and in the presence of a solid (titanium, silicon, silica gel and glass wool) by the pulsed CO2 laser. The first kind of study is related to the chemical reactivity of the radi
Publicado em: 2001
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10. Turbulent heat transfer and pressure drop in pinned annular regions
Experiments were performed to determine average heat transfer coefficients and friction factors for turbulent flow through annular ducts with pin fins. The measurements were carried out by means of a double-pipe heat exchanger. The total number of pins attached to the inner wall of the annular region was 560. The working fluids were air, flowing in the annul
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2000
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11. Studies of Cell Subpopulations Mediating Mitogen Hyporesponsiveness in Patients with Hodgkin's Disease
Hodgkin's disease (HD) is associated with a deficit in T-cell immunity characterized by skin test anergy and decreased lymphocyte responses to phytohemagglutinin (PHA). To investigate this mitogen hyporesponsiveness in HD, we separated peripheral blood mononuclear cells on Ficoll-Hypaque gradients and determined their response to various suboptimal concentra
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12. Purification of the envelope glycoproteins of western equine encephalitis virus by glass wool column chromatography.
Glass wool column chromatography was used for separation of the two glycoproteins of western equine encephalitis virus. Cross-contamination of each protein separated was confirmed to be negligible by sodium dodecyl sulfate-polyacrylamide gel electrophoresis.