Nettet29. apr. 2024 · The porosity distribution of various air electrode initial porosity included single porosity and linear porosity are analyzed at different discharging stages as … Nettet13. apr. 2024 · This paper studies linear waves incident to a vertical permeable cylinder with arbitrary cross-section based on the boundary element method and perturbation theory. Considering a near-zero thickness for the permeable media, and using Darcy's law, the governing equation for the wave incident to a porous circular cylinder is derived …
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Nettet4. mai 2004 · Values for the linear thermal expansion coefficients (β) of some Brazilian granitic rocks commercially used as facings for building are presented. The coefficients were determined within a temperature range of 0 to 50 °C, with the temperature raised at a rate of 0.3 °C/min. The values obtained were related to the apparent porosity, grain … NettetThe porosity based on these openings is therefore less than n, and is called the effective porosity, n e. The revised equation for seepage velocity becomes: v = Ki/n e = q/n e . … is cisplatin an irritant
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Nettet1. feb. 2011 · Model 1 is a linear, dual-porosity “transient-slab model.” The dominant fracture system in Model 1 is hydraulic fractures emanating from equally spaced … Nettet1. jan. 2024 · In graphs 1 and 2 we see an increase in porosity and a decrease in tortuosity. This would happen if other formulations were included and the tortuosity extrapolated the value of 4, that is, the tortuosity still increases with low porosity. The shape of the graph in this linear article would approach a hyperbola. NettetLinear Porosity. Observed as multiple pores in a straight line, linear welding porosity or aligned porosity is a type of welding porosity. Often, linear welding porosity is regarded as a sign of inadequate joint penetration in the root pass of welds. A weld with defects that line up is bad, and a weld with defects at the root is even worse. is cisco webex down