Contaminated layers of sediment were thicker than sampling probes had predicted.
When the hexagonal stripes and the mesh-like coverage of anion contaminated layer covered on the nanotubes disappear, the lotus-root-shaped nanostructures will vanish away.
The anion contaminated layer (ACL) formed around the residual concaves plays critical roles in the formation of lotus-root-shaped nanostructure.
Bioremediation potential for buried oil removal, an application still lacking thorough research, was assessed in a specifically designed system in which an artificially contaminated oil layer of sand was buried in a sand column subjected to tidal simulation.
For clean sampling, a non-contaminating electropolished stainless steel ice corer is designed in conjunction with a polyethylene lathe equipped with Ti chisels to remove possibly contaminated outer layers of ice cores.
By means of analytical procedures, deducted from the Mechanically Contaminated Layer Theory, a new equation in mode II of fracture, unique for all types and different manufacturers is developed.
To the untrained eye, the broken pottery and other artifacts may seem indistinguishable, but archaeologists take great care not to contaminate distinct layers of ancient civilizations.
Much of the acidity in the deeply cracked contaminated soil layers was in available form (in pore water and on cation exchange sites), with some layers having retained acidity (iron oxyhydroxysulfate mineral jarosite).
The effectiveness of radio frequency plasmas of oxygen, air and argon in removing the organic layer from the deliberately contaminated surface of AA6016T6 alloy has been assessed.
Six years ago, the worst coal ash spill in United States history occurred when 1.1 billion gallons of grey sludge burst through a dike at a Tennessee Valley Authority TVAA) facility in Kingston, Tennessee, destroying homes, burying surrounding land with a thick layer of waste, and contaminating nearby rivers.
