Sentence examples for but deactivation from inspiring English sources

In a conventional study, two advantages (i.e., rapid startup operation and high coking resistance) of Ni10Ce90Ox were noted relative to the well-known Ni/Al2O3, but deactivation was recognized.

The majority of subjects showed negatively correlated activation in the optic radiation but deactivation of the optic radiation (Figure 3d) is less likely during a visual task.

Interestingly, in the lower eukaryotes A/D transition of Complex I is also observed, but deactivation is faster and takes place at lower temperatures.

As expected, Li/MgO-based catalysts showed good initial performance, but rapid deactivation at 800 °C excludes their use in high-temperature applications.

Importantly, long-duration trials showed stronger activity in the left inferior frontal gyrus (LIFG) but less deactivation in the PCC relative to short-duration trials.

TG/DT analyses also showed that the retention of carbon-rich species over the catalysts was strongly reduced at temperatures higher than 350 °C or when hydrogen was introduced, but the deactivation pattern was similar.

In the tested conditions, the hexagonal molybdenum carbide phase showed an initial higher activity but the deactivation of the catalyst was more pronounced than in the cubic molybdenum carbide catalyst.

The V-ZSM-5 catalyst exhibited a stable activity for NO reduction in the presence of H2O and SO2 but rapid deactivation was observed in the presence of 10 ppm SO3.

P25 TiO2 was found to be deactivated after Cr VI) (0.8 mM) photocatalytic experiments at pH 2 in the absence of EDTA, but this deactivation was not found in the presence of the organic compound (2 mM), which preserves the activity of the photocatalyst.

For the catalyst series, it was demonstrated that the ethylene conversion and yield in aromatic products were proportional to the number of Lewis acid sites, except for Ni/H-ZSM5 that presented a singular behavior with a high initial conversion but rapid deactivation, due to carbon formation.

By contrast, in WT HCN4 channels substitution of extracellular K+ with Na+ accelerated activation, but not deactivation, rates and induced positive voltage shifts in the steady-state activation.