Results 261 to 270 of about 87,672 (301)
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Moisture Sorption and Transport in Polylactide
International Polymer Processing, 2007Abstract Management of moisture penetration and hydrolytic degradation of polylactide (PLA) is extremely important during manufacturing, shipping, storage, and end-use of PLA products. Crystallinity in PLA was measured with Differential Scanning Calorimetry (DSC) and X-Ray Diffraction (XRD).
R. A. Cairncross +2 more
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Models of Moisture Transport and Moisture-Induced Stresses in Epoxy Composites
Journal of Composite Materials, 1993Mathematical models are presented to describe moisture transport in epoxy composites using concentration and stress dependent diffusion coefficients. These models take into consideration the stresses induced due to moisture and their influence on the transport mechanism.
null Myung Cheon Lee, Nikolaos A. Peppas
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MOISTURE DEPENDENCE OF RADON TRANSPORT IN CONCRETE: MEASUREMENTS AND MODELING
Health Physics, 2003The moisture dependence of the radon-release rate of concrete was measured under well controlled conditions. It was found that the radon-release rate almost linearly increases up to moisture contents of 50 to 60%. At 70 to 80% a maximum was found and for higher moisture contents the radon-release rate decreases very steeply.
Cozmuta, I +2 more
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Moisture effect on the transport of organic vapors in sand
Journal of Hazardous Materials, 2001Vapor-phase affects the transport, lifetime, and fate of volatile organic contaminants in soils. Furthermore, it has an effect on the assessment and the selection of a remediation approach. The diffusion of dichloromethane (DCM), 1,1,1-trichloroethane (TCE) and carbon tetrachloride (CTC) in dry and wet sand media were investigated using a packed column
Bostanci, A, Cabbar, HC
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Effect of mechanical damage on moisture transport in concrete
Applied Mathematics and Computation, 2015zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jaroslav Kruis, Tomás Koudelka
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DIFFUSIVE TRANSPORT OF RADON IN A COLUMN OF MOISTURIZED SAND
Health Physics, 1999Diffusive transport of radon in a moisturized sand column was investigated under well-defined and controlled conditions using a laboratory facility that consists of a cylindrical vessel (height and diameter 2 m) filled with sand. Equilibrium pore-gas radon-concentration profiles in the sand column were measured as a function of depth for several ...
W H, van der Spoel +2 more
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Hydrocarbon Vapor Transport in Low Moisture Soils
Environmental Science & Technology, 1995Gas-phase transport of hydrocarbons in unsaturated soils is important in the assessment and remediation of volatile subsurface contaminants and other environmental applications. This paper presents models and measurements of diffusion, dispersion, and retardation parameters developed for several hydrocarbon vapors in unsaturated soils using laboratory ...
S, Batterman, A, Kulshrestha, H Y, Cheng
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Journal of Materials Science, 2008
The paper presents a mathematical model for calculating the nonisothermal moisture transfer in porous building materials. The simultaneous heat and moisture transfer problem was modeled. Vapor content and temperature were chosen as principal driving potentials. The coupled equations were solved by a numerical method.
Menghao Qin +3 more
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The paper presents a mathematical model for calculating the nonisothermal moisture transfer in porous building materials. The simultaneous heat and moisture transfer problem was modeled. Vapor content and temperature were chosen as principal driving potentials. The coupled equations were solved by a numerical method.
Menghao Qin +3 more
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On the transport of moisture in polythermal glaciers
Geophysical & Astrophysical Fluid Dynamics, 1984Abstract We reconsider the problem of formulation of a model for polythermal glaciers, focussing attention in particular on the temperate zone where ice and water can coexist at the melting temperature. The energy equation for the ice-water mixture in this zone introduces a moisture flux, and a constitutive law for this flux is required.
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Moisture Transport in a Solid Waste Column
Journal of Environmental Engineering, 1984The physical processes governing moisture transport in solid waste landfills are analyzed by the theory of unsaturated flow through homogeneous porous media and experimental work. A laboratory column was constructed and monitored to determine the behavior of unsaturated flow through solid wastes.
George P. Korfiatis +3 more
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