The results of varying the volumetric moisture content
of the soil and the thickness of the insulation and soil layers are evaluated to determine their impact on the thermal performance of the build-up in maintaining a target center of soil temperature.
The variation of the deformation with volumetric moisture content
can be conversed by the test results.
It also highlights the differences between gravimetric and volumetric moisture content
. The sensors predict the moisture content based on electrical conductivity measurements.
In this case, the lower values of the measured values of the volumetric moisture content
W in emulsions of the <<nonpolar liquid dielectric-water>> type can be from 10 [cm.sup.3]/[m.sup.3] for transformer oil up to 100 [cm.sup.3]/[m.sup.3] for aviation kerosene.
where [theta] is the volumetric moisture content
([cm.sup.3] *-[cm.sup.-3]), D([theta]) is the diffusion coefficient ([cm.sup.2]x[mm.sup.-1]), x is the distance from the water inlet (cm), [[theta].sub.a] and [[theta].sub.0] are, respectively, the initial volumetric moisture content
of soil sample and the volumetric moisture content
at water inlet ([cm.sup.3]x[cm.sup.-3]), and t is the infiltration time (min).
In the growing season of 2013 and 2014, the surface volumetric moisture content
was collected and measured by a Theta moisture sensor every day from June 11 to July 3.
The volumetric moisture content
of soil samples used in the uniaxial compression test to obtain the compression curve is shown in Table 3.
Comparison of the gravimetric and volumetric moisture content
in the field with structure score 2 (bulk density average 1.12, s.d.
Volumetric moisture content
of soil varied significantly among sampling sites and among landscape positions under different land-use/land covers (Figure 2).
For a same value of travel time ([mu]sec), higher volumetric moisture content
was found in undisturbed samples than in disturbed samples (Figure 3), which is due to two factors: grain size and bulk density.
In the second stage of the experimental studies were identified value of volumetric moisture content
of the prepared mixtures <<transformer oil--water>> in the moisture content range (10 - [10.sup.4]) [cm.sup.3]/[m.sup.3].