References in periodicals archive ?
where [[lambda].sub.c], [[lambda].sub.m], and [[lambda].sub.f] are the thermal conductivities of the composite, matrix, and filler respectively, and [[PHI].sub.f] is the volume fraction of filler.
After the thermal conductivities of these two parts are determined, the total thermal conductivity of the element or the composite system can be estimated.
The thermal conductivities of Ordos sandstone has a linear relationship with the moisture content (Fig.
The thermal conductivities of the dry clay samples were as follows: KB with 0.197 W/(mK), NB with 0.167 W/(mK), CK with 0.114 W/(mK), and CS with 0.095 W/(mK).
The conductivities of [BMIM][Zn[Cl.sub.3]], [BMIM][ZnAc[Cl.sub.2]], [BMIM][Zn[Ac.sub.2]Cl], and [BMIM][Zn[Ac.sub.3]] were measured by a Wayne-Kerr 6430B Autobalance Bridge fitted with a Shanghai DJS-1 electrode and the temperature was controlled within [+ or -] 0.1 K using a HAAKEV26 temperature thermostat (Thermo Electron).
Thus, even parts per billion (ppb) levels of contamination could account for the experimentally measured conductivities.
Thermal conductivities decrease practically in all ranges of densities, including specimen densification.
However, vertical BHE systems are often installed in the ground of multiple dipping layers (of rock or soil) with different thermal conductivities. The effective thermal conductivity for stratified media is identified with average thermal conductivity.
"Some researchers have investigated hydraulic conductivities of sand-bentonite materials at different dry densities and at different mass ratios of sand and bentonite to design and develop specifications of the materials described above.
Penn State team member Ming-Liang Tian reports that the wires' conductivities depended on their thicknesses and lengths, as well as on the types of metals making up both the wires and electrodes.
The solutions' nominal conductivities, the packaging types, and the approximate masses of KC1 are displayed in Table 1.
Conventional carbon black tends to suffer twin deficits when used to impart ESD protection: It dissipates across a wide range of surface conductivities, while disparities in voltage also tend to persist on the part surface in the form of "hot" and "cold" spots.