However, as the cooling rate increased, the mechanical properties of the alloy showed a trend of first increasing and then decreasing, which had a mathematical extreme value.
Excerpts
However, the surface roughness curve shows a decreasing trend first and increases after that with enhancing cutting speed.
Mechanical Parameters Various types of heat treatment induced more or less significant changes of steel mechanical parameters ( Table 4 ).
Comparing the RCF lives of wheel rollers at different sampling depths, the second layer of wheel 2 had the longest RCF life, while the RCF life of wheel 1 had a decreasing trend with the depth.
a clear trendgold
A normalized difference between experimental and simulated result is taken as a measure of deviation as given in Equation ( 15 ). (15) Δ η n o r m = | η e x p − η s i m | η s i m A clear trend of increasing deviation with increasing Péclet number is visible from Figure 6 .
(e) The percent changes in tearing energy and IR absorbance peak height between 10 and 100 mm·min −1 deformation speeds as calculated in Equations (5) and (6), respectively, at any defined initial oil concentration after the incidence of rupture revealed an interesting trend.
Only one direction in space was used for the MLA, since the differences between the directions are quite significant.
a clear trendgold
The data of the dynamic moduli propose a clear trend.
For the early-age strength of all samples, before 28 days, compressive strength and flexural strength, when increasing limestone powder content, showed a trend of first increasing and then decreasing, which is consistent with previous studies from other composite cementitious materials mixed with limestone powder [ 31 , 32 ].
The near-surface hardness of the samples processed with S10 had an increasing trend depth between 20–70 μm, whereas that of the samples modified with S60 had a slight decreasing trend in the SPD zone ( Figure 4 ).
At the same power, the grain size of ZL205A alloy presented an increasing trend with the increase of vertical depth.
Indeed, hardened concrete (sound or damaged) exhibits a smooth curve with a slightly increasing trend for phase velocity, especially for the low frequency range [ 9 , 17 ], while the few experimental results as well as simulations concerning liquid matrix (fresh concrete) imply an opposite trend and showcase much stronger dispersion exhibiting even “resonant peaks” of phase velocity and attenuation [ 8 , 10 ].
As regards Figure 6 c,d, the μ′ curves fluctuate between 1.16 and 1.02, while the μ′′ curves show a decreasing trend from 0.218 to 0.009.
A decreasing trend was also observed in the evaluation of ductility ( Figure 3 a).
The resulting HBW hardness values ( Figure 3 b) had an increasing trend due to the increase in the returnable material in the batch.
an overall trendgold
An overall trend observed is that for shear-reinforced beams, a great portion of resistance is contributed by web steel, and there is no such evidence that the resistance is significantly affected by the use of recycled aggregates.
The elastic modulus of the SiO 2 -based ceramic core shows a decreasing trend when the temperature is increased.
The Poisson’s ratio data for axial compression tests in Figure 11 also indicate an increasing trend with test duration, yet the Poisson’s ratio does not exceed unity, meaning the final axial strain is higher than the hoop strain for axial compression.
In addition, Table 4 , Table 5 and Table 6 show that the equilibrium concentration shows a decreasing trend with the decreasing initial concentration, which is similar to the research reported before [ 30 ].
a clear trendgold
There is a clear trend of aggregation for the distribution of Mn.
Although DBBM fragments showed a trend for a higher bone porosity, the cortical bone volume and the respective thickness of the cortex were rather similar between the two groups.
However, piezoelectric properties of e.g., PZT/PVC particulate composites show a decreasing trend when the content of lead zirconate titanate (PZT) exceeds 50% [ 13 ].
a clear trendgold
In air welding, the area of the arc barrel did not change with the polarity; however, at 10 m depth, there was a clear trend in decreasing the area of the electric arc in DCEN, demonstrating the voltage drop with increasing depth.
Differences were considered significant at * p < 0.05 and highly significant at ** p < 0.01. 3.
Furthermore, increased viscosity of polymer solution and quite significant variations in layer thickness (after 24 h of polymerization) were detected in different places on the sample indicating not negligible monomer conversion and less controlled process.