Simple switching between response options avoids a choice analysis because the distribution of behavior is constant.
The behavior of multiscale DPG particles in terms of distribution in porous media was observed using core scanning electron microscopy. The following are the precise test procedures: In order to calculate the pore volume and core permeability, the natural cores were taken, dried, and their dried weight was measured.
They were then saturated with water, and their wet weight was determined. The above-mentioned cores were removed and placed in a freeze dryer at -80°C for gelation for 24 hours; 1 PV of DPG particles (size of 2.2 m) were injected at a pump rate of 0.2 mL/min, and then left to stand at 90°C for aging for 5 days; the frozen dried cores were crushed.
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