Excerpts

As shown in Figure 11 , under each impact pressure, the temperature damage residual factors of specimens treated after distinct high temperatures were all smaller than those at room temperature, and the temperature damage residual factors showed a decreasing trend with the rise of temperature.

However, by decreasing the value of Z, the recrystallized fraction decreases first, followed by an increasing trend, and finally decreases again.

Moreover, an interesting trend is presented in Figure 1 f.

The curves revealed an obvious increasing trend for crack widths ranging between 160 and 300 μm, and a decreasing trend for crack widths larger than 300 μm.

Studies of the wear track ( Figure 12 a) and EDS analysis ( Figure 12 b) indicate that, compared to the starting condition where oxides were not found, after 10,000 s of the ball-on-disc test, the amount of oxides on the surface is already quite significant.

For this group of the samples there is an obvious trend in the d c behavior: the d c gradually increases as U H and then U L decreases ( Figure 6 e).

It is found that the model established by the stepwise method is practically significant with Y = −71.168 + 6.946 x 1 + 25.799 x 3 , where Y , x 1 and x 3 represent the dielectric constant, Nd content and the density, respectively.

It was difficult to find a clear trend or optimal value just based on the above-shown results.

The amount of sizing on the fibre surface correlated with the composite tensile properties in the case of PP showing initially an increasing trend in strength and modulus with increasing amount of sizing but at higher concentrations again a drop in the performance.

The deformation required for adequate bonding was slightly significant, but it can be reduced by increasing the temperature during the rolling process.

It can become somewhat significant when the change of strain, shape, and damage are not subjected to control by the external or internal applied force on pipelines.

The relative compressive strength calculated as the ratio of the compressive strength value of experimental specimens BM1–BM3 and the reference sample ( Table 15 ), showed an increasing trend of 14–23% 56 days.

Therefore, in future studies, it is advisable to compare the destruction of larger-sized specimens to see if the size effect may be significant for this process.

A decreasing trend of the large capillary pores of the hardened slurry can be observed when more CNS particles and SS were incorporated.

Fly ash is the main component of the solid waste discharged from thermal power plants, and fly ash output has shown an increasing trend in China.

Our study showed that there may be significant differences not only in LMP sensitivity along the crystal’s axis but also on the surface of the slice.

When the tube filler stiffness becomes greater than a certain critical value (i.e., when p exceeds the critical value), as E increases, σ l U exhibits a decreasing trend.

An interesting trend was found for chemical immobilization, since the electrophoretic mobility of the modified samples was reduced for longer spacer molecules chains.

It is clear that there is an increasing trend in the number of research articles covering this topic, which indicates the importance of this topic for the academy and industry.

The adsorption efficiency shows a decreasing trend with the initial concentration of the Cu (II) ions from 100 to 700 mg/L.

As can be observed in Figure 15 b,c, when the periodic vibration amplitude was increasing, the dynamic restoring force and energy dissipation capacity of MR exhibited an increasing trend.

On the other hand, for the Rz, any strict correlation with I p and T on would be precarious, at least for those machining conditions, since a clear trend or pattern cannot be deduced.

It can be observed prudently from Table 2 that there is an increasing trend of compressive strength in all fibrous specimens compared to RC.

As well as an increasing trend, a decreasing trend in adhesion force for one level can be observed.

However, it was reported that an increasing trend in measurement number of times can be observed, provided that plastic deformation of asperities occurs [ 20 ].