Excerpts

The air content of all the fresh concrete showed a decreasing trend with time.

These results, therefore, do not make it possible to extract a clear trend as to the effect exerted by the additions of natural pozzolans.

Similarly, a quantitative comparison was also carried out to evaluate the relation between the depth of cut and the maximum depth of subsurface damage, and the result is shown in Figure 11 , where the maximum depth of subsurface damage shows an increasing trend with the increase in the depth of cut.

The results showed that: the replacement of waste glass sand effectively improved the gas permeation resistance of mortar; with the increase of replacement, the gas permeation resistance of mortar roughly showed a trend of increasing first and then decreasing.

On average, the studied titanium carbide exhibited a thermal conductivity in the range of 8–10 W/m °C, with a slightly increasing trend as a function of the temperature.

In Figure 8 b, the flux density increases and then decreases with the increase in stress at a certain temperature, and the flux density is maximum at about 35 Mpa; the flux density shows a decreasing trend with the increase in temperature at a certain stress.

The experimental results are shown in Figure 7 , where it can be observed that the saturation flux density of the grain-oriented silicon steel increases with increasing frequency and the losses show an increasing trend, but the growth is slower at lower frequencies and increases faster at higher frequencies, which is also in accordance with Equation (4) [ 26 ].

It should be noted that this minimum illustrates a non-symmetrical profile, demonstrating an increasing trend after 1770 min and culminating in a local maximum in Stage V.

Nevertheless, with the increase in carbon nanofiber loading, an increasing trend of shape parameters and, therefore, a decline in the degree of scattering in the strength was monitored for carbon nanofiber implanted GE composites [ 39 ].

With the increase in content, the compressive strength of the cement paste showed a trend of increasing and then decreasing.

After starting lighting, the rate of temperature increases at all points, maintaining a decreasing trend until the temperature reached its peak.

A noticeable increase in the ultimate deflection, i.e., the deflection of the post-peak softening branch at which the specimen attains 85% of its load capacity, was only found when ten vertical reinforcing bars were put in place (21% and 25% for pitch reduction from 250 mm up to 150 mm and 50 mm, respectively), while a clear trend was not revealed for six and eight longitudinal rebars [ 51 ].

It can be found that in conditions 2 and 3, when there is periodic wear on one side of the wheel and the rail, the real part of the eigenvalue of the system shows an increasing trend relating to the condition 1.

[ 55 ] showed that the deformation during compression of oat kernels had an increasing trend with the increase in loading rate in the range of 0.02–0.10 mm/s, and the forces and stresses initially increased and then decreased with an increase in loading rate.

Since Nylon66 fiber has a lower young modulus than steel fiber, increasing fiber addition in geopolymers results in a negative trend in concrete.

When the diameter reaches 15 mm, the compressive strength of the pellets shows a decreasing trend.

The results of this preliminary study could lead to the conclusion that both tested masks present an increasing trend in bioburden with increasing exposure time.

Although there has been a decreasing trend in GHG emissions since 2005 in Europe, the EU 2030 emissions target still requires a strong effort in the way of renovation of the building stock and a drastic change in the paradigms of energy use as well as of construction materials [ 2 ].

In [ 60 ], the applicability of the √area-parameter model was evaluated, showing a clear trend that suggests that the model can describe the fatigue strength for defects with √area ≥ 1000 μm in L-PBF processed 316L steel.

(3) Both the damage variable and the fractal dimension of the muddy siltstones show an increasing trend with an increase in the number of F-T cycles, and it is more difficult for damage to become superimposed as the damage accumulates to that range causing fatigue (the damage variables ranged from 0.73 to 0.97) while the fractal dimension of the fracture surfaces in the rock still increases.

With the increasing number of F-T cycles, the energy absorbed in the rock specimens shows a decreasing trend, and the absorbed energy of intact rock and rock specimens containing level-I, II, III, and IV initial damage separately decrease by 44.21%, 55.37%, 53.53%, 55.74%, and 61.20% compared with that before the F-T cycles.

Taking both the tensile and flexural properties of PEEK under different pressures into consideration, it can be seen that with the change in pressure, the materials of differing pressure all showed ductile behaviors, and the tensile strength, tensile modulus, and bending strength all showed a slight trend of increasing first and then decreasing.

The elongation at break also showed an increasing trend at first and then decreased.

The yields at different pressures showed an increasing trend as the degassing temperature increased; the compound CPO-27-Mg degassed at 330 °C (CPO-27-Mg Tdegas330) exhibited the best CO 2 adsorption capacity of 8 mmol g −1 at 1 bar and 12.4 mmol g −1 at 10 bar, increasing up to 170% when compared to CPO-27-Mg degassed at 140 °C (CPO-27-Mg Tdegas140).

The dielectric constant of the prepared membranes was found to show an obvious trend: PEI containing hydrophilic MSPs > PEI > PEI containing hydrophobic MSPs.