Excerpts

It can be found that with the increase of the Ce element, the content of pearlite shows an increasing trend, and the content of ferrite shows a decreasing trend.

Figure 12 shows that there is a steady interest in time with a positive trend revealed in traditional ceramics and a clear upward trend in ceramic composites, especially in the last decade, whereas it is clear that research concerning advanced ceramics has been almost abandoned.

The volumetric strain diagram for specimens S 6 to S 9 in Figure 7 b shows the fact that, by increasing the amount of rolling friction coefficient, the volumetric strain decreases and after reaching its maximum value, it goes through an increasing trend.

All compounds showed a trend towards aggregation-caused quenching (ACQ), where increasing the water content in the CH 3 CN/H 2 O system above 40% (in the case of 6 above 30%) caused a reduction in the emission intensity [ 26 , 27 , 28 ] (cf.

Moreover, the axial displacement also shows an increasing trend during failure.

[ 11 ], the impact of desert sand replacement rate on the compressive strength of high-strength concrete showed a trend of first increasing and then decreasing.

Carbon and glass fibre metal laminates present an increasing trend of the force as the impact develops, the trend continues up to a maximum value, where the force start to decrease.

The analysis of the coefficient d f / d t , which describes the laminate capacity to accumulate energy through the elastic deformation with correlation to permanent deformation [ 43 ] was presented in Figure 5 , it can be observed a positive trend with the impact energy.

Furthermore, a decreasing trend in the maximum force in the fibres can be observed with an increasing number of cycles due to relaxation phenomena in the fibre–matrix interface or the fibre itself.

Deviations of the slope of the measured and simulated force-displacement relationships becomes moderately significant when the head displacement reaches approximately 0.11 mm.

Looking at the standard deviation of the measurements, it seems that the average height was similar in different areas of the samples; nevertheless, there are quite significant differences in the values of maximum height.

However, the ductility of W-Mo-Ni-Fe alloys was higher than that of the W-Ni-Fe alloy, and a decreasing trend was observed with an increase in molybdenum percentage.

It shows that the mass prediction model has an obvious trend of change.

Through the mass nondestructive testing and ultrasonic nondestructive testing of concrete specimens, we found that, with the increase in dry–wet cycles, the mass loss rate of the specimen showed a trend of decreasing slowly and then increasing rapidly after leveling off.

Bulk densities of the glass-ceramics show an increasing trend with increasing CTZ content.

[ 25 ] even show a decreasing trend when R ≥ 2.0 mm (see Figure 3 a).

From Figure 3 a, the impervious performance of the sample showed a trend of rising firstly, and then failing with the increase in coating material content: When there was no film coating, the hydrostatic pressure resistance height of the sample was 0 mm.

The frequency of treatment application shows a decreasing trend, in which the higher the frequency, the higher the mean SR.

The results indicate that the effect of the independent variable or treatment effect (time) is highly significant.

The coal rank of the examined samples usually shows an increasing trend with increasing age of individual seams.

Results showed antagonistic effects, with an initial increase in bond strength assigned to a confinement effect of the rebar resulting from changes in the concrete properties over aging, followed by a decreasing trend possibly resulting from interfacial degradation.

The fatigue life after cracking is very variable and does not seem to follow a clear trend.

The quadratic term (T 2 ) of the spatial position of the welding torch, the quadratic term (M 2 ) of the mass transfer position, the quartic term (T 4 ) of the spatial position of the welding torch and the cubic term (M 3 ) of the mass transfer position are moderately significant.

In the case of IRIS lubrication, the CoF under each contact load showed a trend of first increasing, then decreasing and finally stabilizing with an increase in sliding distance ( Figure 14 a).

When the addition amount of lanthanum stearate exceeds 0.05 wt.%, the average CoF of modified oil presents an obvious trend of decreasing at first and then increasing, and the minimum value is reached when the addition amount is 0.2 wt.%.