Excerpts

However, it should be noted that the fluorescence intensity of the composite substrate reached a large value when grafting time was 3 h and then showed a decreasing trend with a further increase in grafting time.

For these two RAC-C groups, when the amount of cement and water added to the mixer in the pretreatment step was 20%, 25%, and 30%, respectively, the compressive strength of RAC-CA and RAC-CB showed a trend of first increasing and then decreasing.

The phase angles of NA and EA show an increasing trend with the increasing temperature, indicating that the two kinds of asphalt gradually approached the viscous state.

However, when the strain-rate was 10 s −1 , the deformation zone formed by the matrix phase deformation was not as clear as the deformation zone formed when the strain-rates were 10 −3 s −1 and 1 s −1 and even showed a trend of layer-by-layer deformation, as shown in Figure 12 b.

Discussion During the welding process, an increase in the laser power causes a decreasing trend in the corrosion resistance of the weld.

In the electrochemical corrosion process, with the increase in the laser power, the corrosion current and rate of the weld specimens exhibit an increasing trend.

As the ionic radius of the quaternary ammonium cation decreased, the desolvation size showed a positive trend.

The effect of the abrasive was also highly significant in terms of the amount of material removed and the depth of penetration of the water jet.

The lack of a clear trend with LTT might originate from the presence of the underlying strain gradients.

It can be seen that when the HPS temperature is lower than 1450 °C, the K Q values of the alloy exhibit an increasing trend with the increase in HPS temperature.

In the relative pressure P/P0 range of 0.4 to 1.0, the adsorption of molecular sieve showed an increasing trend, resulting in the adsorption-desorption isotherm not overlapping and the desorption isotherm being above the adsorption isotherm, thus making the nitrogen adsorption-desorption curve appear a clear hysteresis loop, which indicates that the molecular sieve has a certain mesoporous structure, and the hysteresis loop may be due to the occurrence of the molecular sieve mesopore channel This indicates that the molecular sieve has a mesoporous structure, and the hysteresis loop may be caused by capillary aggregation in the pore channels of the molecular sieve [ 30 ].

As shown in Figure 4 and Table 2 , the composite materials with 0.2% and 0.5% CNT content exhibit slightly higher E corr (corrosion potential) values compared to the original material without CNTs, while I corr (corrosion current density) displays a decreasing trend.

The temperature of the shear area will decrease with the increase of the cooling hydraulic pressure, weakening the softening effect of the material and slowing down the rate of instability of the shear surface material due to adiabatic shearing, that is, the angle between the inside of the serrated segment is increased and the adiabatic shear angle is reduced, resulting in an increasing trend in chip thickness.

In contrast, the use of Cloisite Na+ showed a positive trend, as the percentage of rubber crumb particles with montmorillonite increased from 5% to 10%, resulting in an increase in viscosity.

Similar to 135 °C, the kaolinite and crumb-rubber-modified binder had insignificant viscosity levels, and montmorillonite-modified rubberized binders showed an increasing trend as crumb rubber replacement percentages increased.

The chart’s overall trend demonstrated that at 135 °C, increasing the crumb rubber percentage to 10% from 5% with 3% kaolinite clay showed a decreasing trend in viscosity in the lower half but an opposing trend in the original, upper, and middle portions.

At the age of 7 days, it is evident that with the increase in fine sand content, the drying shrinkage of samples S1–S6 shows a decreasing trend.

During the early thermal process (0–20 d), the CI shows a decreasing trend as antioxidants are gradually consumed.

Coefficient of Friction An obviously different trend in the friction coefficient variations was found that the coefficient was decreased during testing in the metal-on-gel pair while the other two material pairs showed an increasing trend during this time ( Figure 6 ).

However, the peak hardness of the 0.05 La alloy appeared at 4 h, and subsequently demonstrated a decreasing trend in the prolongation of aging time.

An increasing trend in fracture toughness with rising sintering temperatures is noticeable for this series.

The SPAN values and average particle size exhibit a clear trend.

Therefore, as the number of dry–wet cycles increases, the flexural strength of the SP composite system shows a decreasing trend.

Therefore, with the increase in the number of dry–wet cycles, the compressive strength of the SPB10 composite system is higher than that of the basic SP system, showing an increasing trend.

On the other hand, balls of softer materials showed a clear trend to embed the abrasive particles on their surface.