Excerpts

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

As for dimensional accuracy ( Δh ), a highly significant interaction was found between current density and EP time.

Moreover, the As15-6 tool wear curve for the machining of C45 steel showed a decreasing trend of wear with time, unlike other materials.

The foaming pressure of polyurethane systems with different PBA components showed a consistent, regular change, and the foaming pressure showed a decreasing trend with the increasing addition of the PBA.

As represented in Figure 14 , when the wall angle increases from 25 degrees to 35 degrees, the principal stresses (the tensile stress and the compressive stress) of the perforated titanium sheet showed an increasing trend.

A clear trend of absolute Seebeck coefficient values decreasing, with increasing the Cu doping amount, at low temperatures, can be seen as is expected upon increasing the charge carriers upon the electron donor Cu doping.

As mentioned at the beginning of this section, the influence of the CE2 dopant on the behavior of pure 5CB at lower temperatures (i.e., below the clearing point) was fairly significant.

It was observed that the mixtures with cenosphere aggregate replacement exhibited an increasing trend in specific strength as the cenosphere aggregate replacement content increased.

For the vitroceramics with x = 30 mol% NaH 2 PO 4, a decreasing trend in the intensity of the IR bands between 530 and 1200 cm −1 was observed, but its width was increased.

With the increase in (Cu, Ni)-ZnO additions, the thickness in nanocomposite coatings showed a trend of increasing first and then decreasing.

The DMA results for all tested samples show a clear trend: for materials with good energy absorption capacity, the storage modulus increases with frequency.

Moreover, analyzing the axial shrinkage recorded for clay compositions PV1–PV4 (compositions that do not contain dextrin), a decreasing trend of this indicator is observed as the amount of lime increases.

The peak strain and elastic modulus initially demonstrated an increasing trend, followed by a subsequent decline, with an increase in initial deviatoric stress.

Moreover, the p -value for the lack-of-fit test is close to the level of significance, and the F-value for the lack of fit is many times lower than for model factors, which indicates a small model error.

Each factor in the model is highly significant, which is confirmed by the low (close to zero) p -value.

The specimens containing bigger particle sizes of waste glass (0.1–1200 WG and 200–1200 WG) present an increasing trend in flexural strength with increasing incorporation of waste from 10% to 30%, but the obtained results are significantly lower than the reference material.

In Figure 4 a, a clear trend of variation in the component density can be seen, when the volumetric laser energy density gradually increased, while un-melted (I), semi-melted (II), melted (III), and over-melted (IV) cubes (10 × 10 × 10 mm 3 ) were formed.

Moving away from synthetic polymers in favor of their naturally occurring equivalents is currently a significant trend, with consideration given to their eco-friendly, sustainable, non-toxic, and antibacterial qualities.

Moreover, with the elevated density of the porous C/C composites, the C content exhibits an increasing trend, as shown in Figure 4 .

The adsorption capacity of pyrethroids by the adsorbent showed a decreasing trend with increasing salinity of NaCl in solution, which may be related to the increase in ionic strength leading to more Na + competing with pyrethroids for adsorption sites through ion exchange [ 42 ].

From the figure, we can see that the tensile properties of perfect aluminum have a decreasing trend with the increase of temperature.

The rutting factor shows a decreasing trend when the test temperature reaches 70 °C.

In particular, no evidence for significant oxidative stress associated with asphalt binder foaming was found [ 18 ], and while the effects of foaming on viscoelastic properties of asphalt binders may be significant [ 19 ], they subside after short-term aging [ 20 ].Therefore, the effects of foaming on asphalt binders may be omitted in the mixture design, hence simplifying it and not interfering with other possible additives.

The parameters M n , M w , and d of 90#A show an increasing trend after UV aging.

With an increase in aging time, the tensile strength and hardness of the AlSi10MnMg longitudinal carrier display an increasing trend followed by a decreasing trend, while the elongation rate shows a decreasing trend followed by an increasing trend.