The single stage extraction tests were carried out at 29 mm of HWD, 1 1 1.4 1 of the flow ratio range, 160 200 mL/min of the total flow rate range, 2200 2600 r/min of the rotation speed range.
For single stage extraction experiment, the mass transfer efficiency was up to 84% while the rate of extraction agent loss was lower than 0.28% with the operation conditions of 29 mm of the heavy phase weir diameter (HWD), 1 1 1.4 1 of the flow ratio range, 160 200 mL/min of the total flow rate and the rotation speed varied from 2200 to 2600 r/min.
Total separation efficiencies were obtained between 36.54% and 92.02%, capacities from 0.1183 to 0.4579 m3/h and flow ratios ranging from 31.74% to 84.30%.
Studies of CSF flow in the subarachnoid spaces have been less common, and have concluded that pulsatile CSF flow through the aqueduct is, in healthy individuals, but a small fraction of net CSF flow pulsatility, with normal aqueduct-to-CCJ flow ratios ranging from 4 [ 158] to 11% [ 148].
MRI flow measurements in the prepontine cistern can be used to characterize the ratio of supra- to infra-tentorial flow pulsatility, by quantifying the prepontine-to-CCJ flow ratio, and range from 25 [ 51] to 35% [ 48, 158].
Table 4 Fracture configurations and process design Fracture orientation Nominal fracture aperture (cm) Process Oil to water flow rate ratio (ratio) Drainage Imbibition Number of flow rate ratios Range of flow rate ratios Horizontal 0.0127 X 25 10:1–1:140 Horizontal 0.0254 X X 73 10:1–1:360–10:1 Horizontal 0.0381 X X 73 10:1–1:360–10:1.
These data were then used for deriving the distribution of ventilation and blood flow in a 50-compartment lung model, with each compartment having a specific alveolar ventilation/blood flow ratio (VA/Q ratio) ranging from zero to infinity.
The behaviour of liquid film carrying nano-particles in the discharge passage is studied using different Gas to Liquid mass flow Ratios (GLR), ranging from 0.08% to 1.25%.
The distribution of pressure, velocity, turbulent dissipation rate, and vapor bubbles were studied numerically, and the influence of geometric parameters and flow ratio on the operating range were investigated experimentally.
We measured the critical Marangoni number Mac for the transition to time-dependent flow in the aspect ratio range A = h/(R1 − R2), 0.125 ≤ A ≤ 1, where it was virtually constant Mac ≈ 5 · 104.
