Conductance of openings

The temperature-dependent part GT of the conductivity through the metallic cluster is calculated as the sum of conductances of open constrictions. The distribution f(eL) of constrictions over the activation energies can be evaluated from the relevant part of the conductance GT [85] ... 

With closed cell foams, the thermal conductivity is essentially determined by the nature of the filling gas (see also Table 35-11), and also depends on the flexibility of the foam. The thermal conductivity of open-celled foams of low densities varies between about 110 and 170 J m h K and is relatively independent of the chemical constitution. It only assumes significantly higher values for densities above about 0.3 g/cm ... 

Resistivity (and its reciprocal, conductivity) of open segments, Popem is assumed to be the same in aU three columns. This will be true provided the composition of the buffer is the same. In principle, the resistivity of the mobile phase inside the packed segments will also be Popen-The resistivities of the packed segments in columns B and C are very close, indicating that their preparation is quite reproducible. This property, Ppack. is, therefore, a... 

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