Barely Significant

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As mentioned in [ 1 , 2 ] much attention has been devoted to acoustic techniques because they have been greatly developed in recent years and there is a clear trend towards acquiring information about a tested element or structure from acoustic signals processed by proper software using complex data analysis algorithms.
Non-Destructive Testing of Materials in Civil Engineering.
Materials (Basel) · 2019 · PMC6804297
quite significantqualifiedgold
Quite significant differences in dependency ln σ DC (1000/ T ) (consisting of an increase in electrical conductivity) between the PP and PP-F samples are observed for 1000/ T , in the temperature range 330–500 K (57–227 °C), which denotes significant differences in electrical conductivity near the phase-transition temperature.
When the corrosion inhibitor concentration was increased to 100 ppm, the self-corrosion current density I coor reached a minimum of 2.207 × 10 −5 A/cm 2 , the charge transfer resistance reached a maximum of 932.5 Ω·cm 2 , and the corrosion inhibition efficiency reached a maximum of 95.2%, and the corrosion inhibition efficiency showed a trend of increasing and then decreasing with increasing concentration.