channels into account. The results are used to calculate the permeability (K) from an equivalent channel model. Variation of σ … and K with porosity are compared with geological field data. The agreement is quite satisfactory. …

together: porous media and nanofluids. This article aims to summarize the published articles in respect to porosity …, permeability (K) and inertia coefficient (Cf) and effective thermal conductivity (keff) for porous media, also on the …

enable permeability of vocational education credentials, one of the features of a robust apprenticeship system. Second, they …

Mathematical models of skin permeability play an important role in various ?elds including prediction of transdermal … last several decades to yield predictions of skin permeability to various molecules. These efforts include the development … of empirical approaches such as quantitative structure?permeability relationships and porous pathway theories as well as …

estimate the permeability of coal sample. The pore size distribution, porosity, and permeability of coal before and after …The method of improving permeability of coal seams by freeze-fracturing is presented to accelerate the diffusion of … nuclear magnetic resonance (NMR) and scanning electron microscopy (SEM), and a permeability-calculation model was employed to …

the different study courses and entailing barriers for permeability between TVET and higher education. A deepening … article clarifies the hidden obstacles of permeability between vocational and higher education, and points out ways to shape … lateral and vertical permeability with a view to career paths to build up human capabilities. However, until now most of these …

cell voltage. The effects of isotropic and anisotropic permeability of gas diffusion layer have also been studied and the … simulated results show that the high isotropic permeability or a combination of high in-plane and low through-plane permeability … deteriorates with low in-plane and high through-plane permeability of gas diffusion layer. …

The paper presents the results of an experimental investigation conducted to determine the permeability coefficients …

filtration process are strongly depending on the pore structure properties – permeability, porosity and pore size – a reliable …