Excerpts

In both setups, there is a decreasing trend in the acid number of the polyol as hydrogen peroxide is consumed in the bleaching reaction.

A decreasing trend for the Sq parameter was observed with increasing cutting speed and/or decreasing feed rate.

1 was used, the degradation rate showed an increasing trend with the extension of time, and the degradation rate reached as high as 90% when the residence time was 90 s.

The degradation curves showed a decreasing trend.

The xylene degradation rate showed a trend of increasing first and then stabilizing.

The small magnitude and lack of a clear trend in these variations can be explained by this property’s lower dependence on matrix properties, thus not clearly evidencing any changes that might occur in the polymer resins.

This choice stems from the fact that zinc (Zn) is a more accessible and cost-effective element compared to cobalt (Co), rendering it highly significant for potential industrial applications.

As can be seen from Figure 2 , the mass loss rate of the specimen with the increase in the number of freeze–thaw cycles shows an increasing trend.

The test results show that with the increase in the number of freeze–thaw cycles, the mass loss and compressive strength loss of the specimens in 15% Na 2 SO 4 solution gradually increased, and the relative dynamic elastic modulus showed a decreasing trend.

In addition, the authors state that the size of the particles is extremely significant; the additives in the form of nanoparticles have a much larger contact surface with bacteria, which promotes the oxidation of the outer cell membrane, thus increasing the biocidal effects [ 43 , 44 ].

What is worth noting is that the porosity shows a decreasing trend from 1300 °C to 1500 °C, from 56.3% to 47.1%.

With the increase in Ni content, the porosity showed a trend of first decreasing and then increasing, and the electrochemical active surface area (ECSA) of the electrode also showed the same changing trend.

We can observe a clear trend in resistance increase with thickness for the TiCl 4 precursor while the resistance of the layers deposited from TDMA-Ti remains in the range of 170–250 Ω/sq.

It is worth noting that when the ellipsoid thickness h 2 reaches 60 mm the peak pressure decreases, and the impulse begins to show a decreasing trend.

From Figure 7 it becomes obvious that the reversion rate index R rev showed an increasing trend with an increasing ratio of the sulfur curing system.

These results indicate that both spacing and PAA (or not) have extremely significant effects on the shear strength, and height has statistically significant effects on the shear strength.

From Figure 9 , we can see that with the growth of the heat transfer coefficient, the number of cracks on the model surface basically shows a decreasing trend.

The fatigue life decreases with the increase in a p because with the increase in a p , the overall roughness of the machined surface shows an increasing trend; the rougher the machined surface topography, the more defects on the machined surface, the crack source on the surface increases correspondingly, and the fatigue life of the test piece decreases accordingly.

The biochar yields exhibited a decreasing trend with increasing pyrolysis temperature, while the pH value and ash content increased as the pyrolysis temperature increased.

In brief, the corrosion current density generally showed a trend of first increasing and then decreasing, which means the corrosion was initially enhanced and then weakened. 3.3.6.

When etching with CHF 3 , an interesting trend is observed.

From Figure 10 and Figure 11 , it can be seen that: (1) When the immersion time increases in the range of 28 d to 90 d, the strength of the sample shows an increasing trend, and they all reach the peak strength at 90 d; the most prominent contribution to the strength of the sample is when the UFC content is 10%.

Ferroelectric ceramics, such as BCZTO, are poised to become a significant trend in this domain, showcasing their potential for air purification applications.

In Figure 9 , the Poisson’s ratio shows an increasing trend with the gradual increase of α.

As can be seen in Figure 14 , the solubility parameters of both the bitumen model and the two types of EUG models show a decreasing trend with increasing temperature.