Excerpts

The temperature of the shear area will decrease with the increase of the cooling hydraulic pressure, weakening the softening effect of the material and slowing down the rate of instability of the shear surface material due to adiabatic shearing, that is, the angle between the inside of the serrated segment is increased and the adiabatic shear angle is reduced, resulting in an increasing trend in chip thickness.

In contrast, the use of Cloisite Na+ showed a positive trend, as the percentage of rubber crumb particles with montmorillonite increased from 5% to 10%, resulting in an increase in viscosity.

Similar to 135 °C, the kaolinite and crumb-rubber-modified binder had insignificant viscosity levels, and montmorillonite-modified rubberized binders showed an increasing trend as crumb rubber replacement percentages increased.

The chart’s overall trend demonstrated that at 135 °C, increasing the crumb rubber percentage to 10% from 5% with 3% kaolinite clay showed a decreasing trend in viscosity in the lower half but an opposing trend in the original, upper, and middle portions.

At the age of 7 days, it is evident that with the increase in fine sand content, the drying shrinkage of samples S1–S6 shows a decreasing trend.

During the early thermal process (0–20 d), the CI shows a decreasing trend as antioxidants are gradually consumed.

Coefficient of Friction An obviously different trend in the friction coefficient variations was found that the coefficient was decreased during testing in the metal-on-gel pair while the other two material pairs showed an increasing trend during this time ( Figure 6 ).

However, the peak hardness of the 0.05 La alloy appeared at 4 h, and subsequently demonstrated a decreasing trend in the prolongation of aging time.

An increasing trend in fracture toughness with rising sintering temperatures is noticeable for this series.

The SPAN values and average particle size exhibit a clear trend.

Therefore, as the number of dry–wet cycles increases, the flexural strength of the SP composite system shows a decreasing trend.

Therefore, with the increase in the number of dry–wet cycles, the compressive strength of the SPB10 composite system is higher than that of the basic SP system, showing an increasing trend.

The conclusions can be organized as follows: (a) In the case of pressure changes that begin with a decreasing trend (P1 and P4 up to half of the stroke, Figure 5 a,b), higher values of traction forces and friction coefficients are noticeable, with respect to changes in P2 and, in part, P3.

The calculated absorption coefficients of the LA modes shown in Figure 5 exhibit a decreasing trend with increasing Cl content.

It can be observed that the bending strength of the tested structures exhibited an increasing trend.

The use of these structures has become an important trend in the development of modern industrial technology, as evidenced by recent research [ 19 , 20 , 21 ].

The frequency band at the lower edge of the first complete band gap gradually decreased and then increased with the increase in the outer radius, while the frequency band at the upper edge showed a trend of sharply rising.

It can be seen from Figure 3 that the changes in the MgO content in the cement paste mixed with four types of MEA generally showed a trend of first fast and then slow.

The curves of the monitored parameters Ra and Rz show an increasing trend on all samples depending on the line of measurement.

In contrast, other PFC types demonstrate a decreasing trend in fatigue strength, ranging from cross-ply [0°/90°], quasi-isotropic, twill-woven reinforced, [±45°], random-oriented mat reinforced, to transverse direction [90°] configurations.

With the increase in ultrasonic power, the fluidity of both alloys showed a trend of first increasing and then decreasing, with the effect of ultrasonic vibration on the fluidity of hypoeutectic AlSi9 alloy being more significant.

Both the UTS and EL of the alloy showed a trend of first increasing and then decreasing.

However, as the concentration of K 2 ZrF 6 increased further, the process voltage exhibited a decreasing trend.

The quadratic multinomial regression model is obtained in Equation (9). (9) T m a x = 0.2632 + 0.1462 × n + 0.2765 × f z − 0.0655 × a p + 0.2819 × t + 0.0682 × n × f z − 0.1358 × n × a p − 0.0443 × n × t − 0.0528 × f z × a p − 0.0538 × f z × t − 0.2185 × a p × t + 0.01098 × n 2 + 0.1228 × f z 2 + 0.1452 × a p 2 − 0.8724 × t 2 From the table, the model F-value is 6.54 and the p -value is less than 0.001, showing that the model is highly significant.

However, in Figure 1 b, there is a clear trend of a decreasing amplitude of the intensity peak with the substitution of Se and Te.