It is well known that over flat ground the spectra for single-noise screens have significant marked differences for propagation over absorbing ground where the screen obstructs surface wave attenuation over the absorbing ground cover.
The deposition of asphaltenes greatly reduces the productivity of the affected wells, and in some cases stops the well from flowing after a complete plugging of production column, it may also obstruct surface production facilities.
Scanning electron microscopic images of the surface not obstructed by nanoparticles reveal crystallographic etching patterns.[ 24] Extreme negative potentials cause vigorous reduction of protons and/or water molecules at the electrode.
For the same reason it was not possible to confirm the hypothesis of an oil gilding (oil-based size or 'mordant' to adhere the gold to the surface): the varnish covers the entire surface, obstructing this specific analysis.
By measuring the dip in brightness, they can work out how much of the star's surface is being obstructed.
This might be because the dispersants adsorbed onto the droplet surface obstruct the agglomeration between droplets.
These substances can adsorb both physically and chemically at the metal-solution interface and obstruct the contact surface between the metal and the corrosive agents [10, 11, 12, 13].
Nevertheless, the unwashed HCl residues also obstructed other active sites on TNT surface, such as oxygenated groups that also play important role in Hg0 oxidation and adsorption.
However, Haselgrove and Prammer assumed that the position and orientation of the surface coil were known, as obstructed its practical application.
In group 2 (only EDTA was used), only a few of DT could be seen with patches of SL and debris partially coating the canal wall surface; most of the entrances of dentinal tubules were obstructed by smeared materials.
