We could observe also here that at current densities
over 0.75 A/[cm.sup.2], the fuel cell polarization curves for flow fields M1 and M3 are close to each other, due to similar ohmic losses.
The results show increase in current densities
with increase in BOx loading on the cathode.
The magnitude of fluctuations in current densities
(channel noise) depends on the number of ionic channels and, thus, for fixed channel densities ([[rho].sub.Na] = 60 channels/[micro][m.sup.2], [[rho].sub.K] = 18 channels/[micro][m.sup.2]), on the area of the considered membrane patch.
Finally, predicted electric field magnitudes were computed from median current densities
observed in the OCC ROI divided by gray matter conductivity found in Table 1.
The effect of pH on electrocoagulation of POME and PW was studied within the pH range of 2-10, at 50[degrees]C and 60[degrees]C for POME and PW, respectively, with varying current densities
. Figure 2 shows that the removal efficiency increased significantly when the solution pH was increased to 10, for POME.
A reduction of chloride ions was remarkable at only the lowest current density (i.e., 250 mA/[m.sup.2]), while a slight reduction of chloride ions was observed in the case of higher current densities
at identical increment of current density.
The pH 8 needed lower current density, compared with the two other current densities
. It was concluded that optimum pH for reaching to microbial standard (MPN 0) was pH 8.
Since observation and source locations are typically well separated, particular singularity treatment is here not necessary, unless the field transformations are combined with additional constraints such as a null-field condition in order to obtain Love equivalent surface current densities
For current densities
higher than the typical value estimated above, the voltage-dependent sodium channels in the plasma membrane become activated leading to further depolarization of the membrane and initiation of the action potential.
Figure 1 shows the curves of potential as a function of anodizing time in 0.3M [H.sub.3]P[O.sub.4] solution for 15, 45 and 90 minutes with current densities
of 10 and 15 mA/[cm.sup.2].