Total N and NO3− concentrations were higher (p < 0.05) in CTC than NTC, but larger volumes of percolation water in NTC than CTC resulted in no significant difference in leakage of total N and NO3−.
By using back-scatter technique, 55 Foschia 46 investigated foam volume as a function of percolation time (cup volume) ranging from a few drops (e.g., 4 mL) to 20 mL espresso.
Reduced soil pore volume impedes percolation of water through the soil hence low soil moisture levels (Chaichi et al. 2005).
The percolation experiment with small reconstructed soil columns was conducted at 5 and 15 °C for 25 days with a percolation volume equal to 36 mm d− 1, adding up to a total percolation volume of 900 mm.
The reflectance is shown to be a function of the metal carbide volume fraction and its degree of percolation, but not dependent on whether the nanocomposite microstructure is homogeneous or a self-organized multilayer.
Using TEM micrographs, the metal volume fraction of the composite was accurately determined, allowing both electrical conductivity and Young's modulus to be plotted vs. the volume fraction, enabling quantitative use of percolation theory for nanocomposites <30 nm thick.
Electrical conductivity of composites has percolation character and graphite nanoplatelets (ultraviolet ozone treatment for 20 min) addition which leads to a decrease of percolation threshold 0.005 volume fraction and increase values of electrical conductivity (by 2 3 orders of magnitude) above the percolation threshold in comparison with composite materials graphite nanoplatelets/epoxy resin.
An empirical mathematical model was designed which establishes the relationship between the variation of the responses (extraction yields), and the variation of three factors (sample volume, sample percolation flow rate and amount of metallic ions present in the sample).
The percolation behavior of the network was studied using the Monte Carlo method, which leads to the determination of a critical filler volume fraction (percolation threshold φ с ).
For dispersions containing a single type of particle, it has been observed that the onset of percolation coincides with a critical value of volume fraction.
