Excerpts

As illustrated in Figure 7 , at all four test temperatures, the peak values of the two selected characteristic absorption peaks generally exhibit a decreasing trend with increasing aging time.

All correlation coefficients passed the correlation coefficient test, indicating a highly significant power function relationship between the flexural and axial compressive strengths of concrete after 8 years of exposure in the Salt Lake region.

The interfacial shear strength generally shows a decreasing trend with the increase in the testing temperature.

Concurrently, the |Z|-frequency curve in the Bode diagram shows a decreasing trend as a whole; however, |Z| 0.01Hz is still as high as 10 6 Ω·cm 2 .

While the calculated mean sizes are very close to each other, a weak trend can be noticed, according to which the increase in the spacer length in the template gemini molecule leads to the development of particles of smaller sizes.

Comparing Figure 10 a, it is found that the E 0 and E c of fiber-reinforced concrete are smaller than those of ordinary concrete of the same grade; compared with LC20-0.05P, as strength grade increases, E 0 increases by 25.8% and 49.8%, and E c increases by 45.3% and 83.3%, while the difference between E 0 and E c showed a decreasing trend.

(2) With the increase in temperature, the rutting depth of the mixture of the connecting layer shows an increasing trend, and the rutting depth changes obviously when the temperature is greater than 30 °C.

(5) The model established by the research results provides scientific support for the design and optimization of asphalt pavement, which is highly significant.

With the increase in loading times, the critical pressures corresponding to the disappearance of PL are about 5.79 GPa, 5.17 GPa and 4.42 GPa, respectively, showing a decreasing trend with the increase in loading–unloading times.

The statistical strength of the models was confirmed by their F-values, which were consistently above 10.0, indicating that the models are highly significant.

The figure demonstrates that both the fundamental and second harmonic amplitudes decrease with increasing propagation distance, while the ultrasonic nonlinear parameter exhibits an increasing trend, thereby confirming the cumulative effect of ultrasonic nonlinearity.

Furthermore, the viscosities of slurries for all mixing ratios show a decreasing trend with an increasing shear rate, indicating that the slurries have a shear thinning characteristic.

Consequently, the density and particle size of the sludge incineration ash increase, while the specific surface area and water absorption rate show a decreasing trend. 2.3.

This phase can be further divided into two parts: the first unloading stage (segment CD), where stress continuously decreases and the dynamic stress–strain curve rapidly descends, with the slope of the unloading curve being greater than that of the loading curve, indicating that the unloading modulus is greater than the loading modulus; the second unloading stage (segment DE), elastic deformation energy continues to accumulate as cracks propagate in the rock sample, resulting in a decreasing trend in strain.

The effect of ultrasonic treatment on COS removal is highly significant because it promotes the interaction between Ni and Al, which also includes an increase in the number of weakly basic sites (OH − ) and moderately basic sites (M−O), and a decrease in the number of strongly basic sites (O 2 − ) responsible for catalyst deactivation.

Mechanical Measurements Overall, both compressive strength and elastic modulus values exhibited a decreasing trend as the drug release duration increased, until reaching stable levels.

The compressive strength, splitting tensile strength, and elastic modulus of the specimens all showed a decreasing trend as the temperature increased.

When the content of Yb exceeds 0.45 wt.%, its mechanical properties show a decreasing trend.

For example, when k w , K x , K θ exceeds 10 20 , the frequency results even show a decreasing trend.

With increasing voltage, the degradation rate of p-NP by the Fe 78 Si 9 B 13 MG ribbon showed a trend of increasing first and then decreasing after 30 min, as shown in Figure 3 a.

Concurrently, the yield stress of the slurry exhibits a decreasing trend.

The κ tot decreases with the increasing temperature for all alloys, and with the increase in the content of Mn, κ tot exhibits a decreasing trend.

For both fillers, an increasing trend in hardness was observed moving from the SCHAZ to the BM, highlighting the gradient nature of the microstructural transitions in these zones [ 16 ].

As ω increases, the Mode-I SIF ( K I ) exhibits a decreasing trend, whereas the Mode-II SIF ( K I I ) shows a corresponding increase.

The differences among the three optimized structures are still quite significant.