The Hall conductivity in the magnetic-eld-induced spin-density-wave (FISDW) state of the quasi-one-dimensional organic conductors (TMTSF) 2 X at a nite temperature is calculated. The temperature dependence of the Hall conductivity is found to be the same as the temperature dependence of the Frr ohlich current of a regular charge/spin-density wave. Predicted dependence xy (T) can be veriied expe...

The interplay of Umklapp scattering from a periodic potential and other scattering processes determine the conductivity of (quasi) one-dimensional metals. We show that the transport at finite temperature is qualitatively and quantitatively strongly influenced by a number of approximate conservation laws. Typically, not the strongest but the second strongest scattering mechanism determines the d...

The nonlinear solvers in numerical solution of water flow in variably saturated soils are prone to convergence difficulties. Many aspects can give rise to such difficulties, like very dry initial conditions, a steep pressure gradient and great variation of hydraulic conductivity occur across the wetting front during the infiltration of water.  So, the averaging method applied to compute hydraul...

The optical conductivity spectra of quasi-one dimensional compounds K0.3Mo1−xWxO3 (x=0, 0.03 and 0.15) have been studied over broad frequencies. While the dc resistivity measurements indicate no sign of CDW transition in heavily W-doped blue bronze, the optical conductivity spectra still show a single particle gap at around 0.2 eV for E parallel to the chain direction. Such impurity effect chal...

We investigate the transmission coefficient for propagation of electromagnetic radiation, of frequency w, through an electron inversion layer, of finite thickness d, in the metal-oxide-semiconductor (MOS) structure. The corresponding result in the case where the inversion layer is treated as infinitely thin (two-dimensional electron gas) has been given by Chiu et al. Subject to the assumptions ...

A method for numerical calculation of the eeective conductivity of a periodic array of cells is presented. Knowledge of bases for the space of solutions to the electrostatic equation in a cell is assumed. The method involves projection of the electric potential on these bases. Applications are made on two-dimensional two-phase tilings where polygons meet in bow-tie shaped corners and the conduc...

Algebraic models of porosity, specific surface area, and in-plane effective thermal conductivity for stacked, two-dimensional symmetric diamond-weave screen laminations are developed and benchmarked with laboratory experiments. Diamond-weave laminations are found to have greater metal fractions and specific surface area than equivalent orthogonal-weaves. With the weave angle smaller than 90°, t...