Excerpts

The saturated NHC complex 1 bearing the cyclohexyl substituent at the nitrogen atom exhibited the highest ethane conversion (acetic acid yield of 40%) while the effect of different ring size substituent of complexes 1 and 4 was moderately significant (15% yield decrease from a C 6 to C 12 ring, Figure 2 ).

Similarly, the compressive strength showed an increasing trend with curing time no matter the amount of cement dosage and RAP (24.79~40.99% from 7 to 28 days, and 4.28~7.73% from 28 to 90 days).

Test results indicated that the ultimate failure load had a decreasing trend with the increase of the reclaimed aggregate substitute ratio, but the structure’s safety was proved.

With increasing reaction temperatures, the content of NH 4 -N in hydrochars showed a slightly increasing trend, while that of NO 3 -N changed little, consistent with the research results reported by Kruse et al.

With the increase in reaction temperature, the content of Alkali-ON in hydrochars overall showed a decreasing trend.

This demonstrates that particle acceleration shows a decreasing trend from top to bottom of the specimen.

However, the relative atomic displacements Δ d showed a decreasing trend from 0.31 Å to 0.00 Å as the atomic number of the group-IV species increased, so that the monolayer PbTe (with Δ d = 0.00 Å) formed in an ideal NaCl-type structure.

From Figure 10 b, it can be seen that the overall b -value showed a trend of rising first and then declining, and the b -value entered a rapid fluctuation around the 0.4~0.5 load level.

Global production (including mangos, mangosteens, and guavas) reached 55.85 MMT in 2019, with an increasing trend in comparison with 2018, when the production was about 53.41 MMT [ 167 ].

Regarding the influence of specific frequencies, a clear trend is not detected.

Thermal diffusivity showed a decreasing trend with increasing temperature, due to the progressively higher phonon scattering [ 31 , 32 ].

According to these researchers, the addition of more than 15% lime shows a decreasing trend of workability, while in this study, the addition of a mere 5% of lime deteriorated the workability of the mortar.

The goodness factor of the porous media channel presented a decreasing trend, along with Re eq , due to the strong pressure-loss properties, while the plain channel’s goodness factor increased.

A positive effect of salts on Young’s modulus is still quite significant for admixture-free concrete.

Both the experimental and predicted forging force curves exhibited an increasing trend with increasing processing time.

In the same direction, in response to external influences, both the compressive strength and the compressional wave velocity of concrete have a decreasing trend after sulfate erosion.

In each case, a positive trend is observed: as impact energy increases, the average microstructural measures increase concurrently.

Similarly, if there is less inclination, then it has very slight significance, so in our case, the sliding speed has slight significance.

The results of the preliminary research by the authors suggest that the thermal effect of this process on the material cut may be significant.

They distinctly identified the need to fabricate high-performance hybrid aluminium composites and reported that the mechanical properties particularly the tensile strength improves up to a certain extent, i.e., 3 to 5 wt.% of SiC; however, beyond this range, the tensile strength showed a decreasing trend.

Our study found no significant change but a slight trend of reduction on the hindfoot eversion and forefoot abduction.

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.