Permeability To The Air
Mostrando 1-12 de 82 artigos, teses e dissertações.
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1. Critérios para decanulação da traqueostomia: revisão de literatura
RESUMO Objetivo Realizar um levantamento bibliográfico a respeito da decanulação da traqueostomia para verificar os fatores e protocolos utilizados em estudos internacionais. Estratégia de pesquisa Estudo de revisão de literatura utilizando a base de dados PubMed com os descritores em língua inglesa “Tracheostomy”, “Weaning”, “Decannulation
CoDAS. Publicado em: 02/12/2019
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2. Impacto do uso de resíduo de vermiculita no estado endurecido de argamassas
Resumo No processo de beneficiamento da vermiculita é gerado um resíduo fino para o qual atualmente ainda não foi desenvolvida uma aplicação que possibilite a utilização em larga escala. Uma alternativa que vem sendo estudada é a associação com cimento Portland em composições de argamassas e concretos, em função da composição química do res�
Cerâmica. Publicado em: 2019-01
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3. Transpiration Reduction Factor and Soybean Yield in Low Land Soil with Ridge and Chiseling
ABSTRACT Water and oxygen deficiencies in the soybean crop cultivated on lowland soils are an important topic of research. The objective of this study was to investigate changes in water and oxygen supply and soybean yield caused by soil management in lowland soils. A soybean crop was grown under four soil conditions: no-tillage (NT), chiseling (CH), ridge t
Rev. Bras. Ciênc. Solo. Publicado em: 24/05/2018
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4. Is Structural Quality as Assessed by the "Profil Cultural" Method Related to Quantitative Indicators of Soil Physical Quality?
ABSTRACT Soil and crop management systems change the soil structure, thereby affecting soil quality. The “profil cultural” method (PCM) has been used to identify the effects of management systems on soil structure; however, few studies relate the structures identified by the PCM to quantitative indicators of soil structural quality. This study aimed to q
Rev. Bras. Ciênc. Solo. Publicado em: 22/02/2018
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5. Wood Permeability in Eucalyptus grandis and Eucalyptus dunnii
ABSTRACT The objective of this study was to evaluate the flow of air and water in Eucalyptus grandis and Eucalyptus dunnii wood. Wood was collected from four trees aged 37 years in an experimental plantation of the Federal University of Lavras, Brazil. Planks were cut off the basal logs to produce specimens for air and water permeability testing. Results ind
Floresta Ambient.. Publicado em: 11/12/2017
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6. Design of coaxial aircell fixture for the measurement of electromagnetic properties
Abstract Coaxial aircells are designed and fabricated to measure the electromagnetic properties of ferrite materials in the frequency range from 1 MHz to 3.6 GHz. These S-parameters are actually measured connecting the aircell to a vector network analyzer (VNA). The electromagnetic properties such as complex permittivity and complex permeability are extracte
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-09
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7. Liquid Bovine Biofertilizer and Cultivation Effects on the Porosity of a Typic Haplocambids as a Function of Cultivation and Dose
ABSTRACT The soil porous space is where processes related to gases and soil solution occur, and provides an adequate guide for agricultural practices. This study aimed to evaluate the integrated effects of cultivation and the application of liquid bovine biofertilizer on the porous network of a Typic Haplocambids (Cambissolo Háplico Ta Eutrófico) cultivate
Rev. Bras. Ciênc. Solo. Publicado em: 28/07/2016
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8. Calidad del aire en galpón avícola con ventilación natural durante la fase de pollitos
ABSTRACT Broilers during the first phase should be protected from cold stress, especially in the winter, cold nights and early mornings. To protect animals, poultry producers have used different strategies, including the use of multilayer of curtain, to increase the thermal insulation and reduce heat losses, also decreasing the permeability to the external a
Rev. bras. eng. agríc. ambient.. Publicado em: 2016-07
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9. A study on the functional properties of silk and polyester / lyocell mixed fabric
ABSTRACT Silk is one of the valuable fibers in textile industry. It is used for delicate applications in many areas such as sarees, suitings, curtains and luxurious interiors. To diversify the properties and usages silk is mixed with polyester and lyocell. The fabric is dyed with natural dyes (kum kum, indigo, barberry) as well as synthetic dyes (reactive dy
Matéria (Rio J.). Publicado em: 2015-12
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10. Effect of an edible crosslinked coating and two types of packaging on antioxidant capacity of castilla blackberries
In order to increase the shelf life and maintain the quality and stability of the biological compounds with antioxidant activity present in Castilla blackberry fruits, a sodium alginate-based edible crosslinked coating was applied, and the fruits were packed in two different plastic containers and stored under refrigeration (3 ± 1 °C). Total antioxidant ca
Food Sci. Technol. Publicado em: 2014-06
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11. Soil structure and greenhouse gas production differences between row and interrow positions under no-tillage
No-tillage in Brazil is an efficient agricultural system that improves crop productivity whilst controlling erosion caused to the soil by degradation. However, there is some concern regarding soil compaction. Our objective was to determine whether the function of soil structure in sustaining crop growth was dependent on row and interrow positions in long-ter
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-04
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12. Synthesis and characterization of sulfonated poly(ether imide) with higher thermal stability and effect on CO2, N2, and O2 permeabilities
An experimental design in different reaction conditions was applied to modify poly(ether imide), PEI, by sulfonation using acetyl sulfate. Higher temperatures and reaction times led to higher ion exchange capacity. The thermal analysis showed that our sulfonation approach accomplished preparing sulfonated PEI maintaining the thermal stability of its parent m
Mat. Res.. Publicado em: 18/02/2014