Excerpts

According to their results, the effects of the initial stress, geometric imperfection, and volume fraction index were quite significant on the nonlinear vibration behavior of the FGM plate.

The electrical conductivity initially grows rapidly and then increases slowly, maintaining an increasing trend throughout the whole aging period.

An increasing trend in compressive strength, hardened concrete density, and ultrasonic pulse velocity was observed, while a decrease was noticed in the values of water absorption with the increase in WSA replacement percentages and the curing age.

Concrete containing WSA has a lower density than the control mix and a decreasing trend of density was observed with the increasing percentage of WSA.

The results showed a trend consistent with that of the experimentally derived permeability coefficients in this study, indicating the high reliability of the simulated results.

After the beginning of the strengthening phase, the signal parameters showed a decreasing trend until the necking phase when almost no signal was generated.

From Figure 13 a we can find that in terms of the proportion of each cumulative parameter component, the normalized cumulative energy parameter differ from the other cumulative parameters in the two phases where a clear trend change occurs (yielding phase and fracture moment).

In the elastic stage, the overall change in the ring count is not significant, while the ring count shows an increasing trend after entering the plastic yielding stage.

The R-curves showed an increasing trend in the SERR in the first 20 to 30 mm of crack growth for the CFRP samples followed by area period over which the SERR seemed to have stabilised, despite the peaks and troughs in the SERR data.

As shown in Figure 11 , it was possible to observe an increasing trend of the load curve in the A and B series after the formation of the first crack.

The hardness and Young’s modulus obtained from nanoindentation follow a clear trend with bias pulse length.

With the increase of frequency, the friction coefficients of the three rubbers show a slightly increasing trend.

At the same time, the number of annual publications had also shown an increasing trend.

With such an increasing trend follows the inevitably emerging issue of progressive depletion of the natural resources for retrieving concrete’s constituents, particularly the aggregates.

With the load increasing, the cracks on the specimen surface show an obvious trend extending along the vertical direction.

As shown in Figure 5 , at each specific substitution ratio, the relative cubic compressive strength of the RAC after carbonation presents an increasing trend with the increase of the MD .

When the concentration of the AgNW solution was 1 mg/mL, the haze value presented an increasing trend with the increase in spin speed, which might be related to the uniformity of the distribution of AgNWs on the substrate.

When the concentrations of the AgNW solution were 2 and 3 mg/mL, the haze value presented a decreasing trend with the increase in spin speed, which might be related to the density of AgNWs on the substrate.

Unlike the compressive strength, the change of the hydration products was almost insignificant, despite the differences in the mixing methods such as the concentration of the activator in the first cycle and the order of addition of slag or FA.

As shown in Figure 6 a,b, with an increasing sp 2 /( sp 2 + sp 3 ) ratio, E a and T 0 show an increasing trend, and σ 300 and T c show a decreasing trend.

Evaluation and Discussion of Barkhausen Noise Test Magnetic parameters do not show a clear trend.

The meta-analysis revealed an overall trend in reduction PD in periodontitis patients receiving melatonin, although the overall difference was not statistically significant ( Figure 2 ).

There is a clear trend in the effect of head angle on the extent of the rock failure zone.

The dual-purpose effect of the BCFC protects the wearer from others and also protects others from an infected wearer, which is extremely significant given the high number of asymptomatic COVID-19 people who are unaware that they are shedding the virus and contributing to the community spread.

However, the fatigue life presented a decreasing trend at the feed rate f = 0.20 mm/rev.