Excerpts

It is further observed that in the sixth hour of the test, it has a decreasing trend, which shows that the coating maintains its integrity, exhibiting only a late minor degradation.

A clear trend of increasing absorbance values is observed with longer deposition times, which is attributed to the increased thickness of the thin films.

Clearly, the YS of the material shows an increasing trend, but the growth is not significant, while TS and EL show a declining trend.

It can be seen that, in the range of this test ratio, the density of similar materials with an increase in the aggregate–binder ratio showed an increasing trend; with an increase in the calcium carbonate content, it showed an oscillating change; with an increase in the cement–gypsum ratio, it first decreased and then increased; with an increase in the moisture content, it showed the trend of firstly increasing, then decreasing, and then increasing; the changes in the moisture content and the content of calcium carbonate did not have a significant effect on the density.

The apparent porosity of castables with only added AEA and alumina bubbles after being dried at 110 °C and treated at 1300 °C presented a decreasing trend as CAC content increased.

Additionally, the specimen exhibited an increasing trend in recovery stress during the cooling process, which is attributed to the increase in both elastic modulus and recovery stress caused by the thermally induced martensitic transformation during cooling [ 49 ].

In the coatings from the other electrodes studied, the same tendency towards a decrease in wear is observed until certain values of pulse energy are reached, which are different for each specific electrode, after which an increasing trend is registered at E = 0.05 J.

The analysis of flexural strength across concrete specimens with varying C/A ratios and cement types, shown in Figure 3 , reveals a clear trend in bending resistance.

The decrease in friction that occurs after the running-in phase does not lead to stabilisation but shows a slightly increasing trend.

The BET measurements show a clear trend of decreasing specific surface area and pore volume with increasing TEPA loading, which is attributed to physical occupation of pores by TEPA molecules.

[ 7 ] observed an increasing trend towards the use of endocrown restorations and extended onlays that do not rely on a post-core system, instead utilizing a box-shaped preparation to enhance retention of the crowns or onlays.

Stress within the root dentin showed a decreasing trend from stage S1 to stage S5 in most models at both levels.

It can be seen that, in the range of this test ratio, the cohesion of similar materials with an increase in the aggregate–binder ratio and calcium carbonate content showed a decreasing trend, while the cohesion with an increase in the cement–gypsum ratio showed an obvious linear increasing trend.

As the number of FTs increases, the bending load-deflection curve shows a decreasing trend, but the peak load reduction is less significant compared to the TS.

It can be observed that with the increase in FTs, the overall ultimate peak deflection in both states exhibits an increasing trend.

According to the ANOVA results in Table 5 , the variation in the water-to-binder ratio had the most significant and highly significant effect on all evaluation indicators throughout the sulfate dry–wet corrosion process.

They found that the mechanical properties of RAC, such as compressive strength and dynamic elastic modulus, also showed a trend of initial increase or stabilization, followed by a decrease over time.

The test results showed that the density of the specimens showed a decreasing trend with the decrease in the interface temperature, but the porosity was always below the 3% threshold specified in the standard.

In contrast, the Cu-excess specimens displayed lower power factors at temperatures below 423 K, but exhibited an increasing trend above 423 K.

With the increase in temperature, the number of hydrogen bonds in each system showed a decreasing trend in general, which was mainly considered to indicate that the molecular thermal motion was intensified after the energy of the system was increased, making it difficult to maintain a stable hydrogen bonding network, and the hydrogen bond energy was low, making it easy to be destabilized at high temperatures.

The results show that the adsorption capacity increases with the increase in the initial concentration of fluoride until it reaches an equilibrium adsorption capacity of 263.33 mg g −1 , whereas the removal rate shows a decreasing trend from 88.78% to 32.92%.

Waste glass concrete exhibits a similar trend in strength variation to OC, showing a clear trend of first increase and then decrease [ 10 ].

At 28 days, the p value was 0.000004, showing an extremely significant improvement.

The cathodic zone of the member reacted the most actively, and the potential difference between the cathodic and anodic zones first showed an increasing trend and then decreased with time.

The fluorescence intensity of the TPTc-DBD solution showed a trend of increasing and then decreasing with the increase in the volume fraction of water, and the emission wavelengths gradually red-shifted at the same time.