Sample pastes were then cooked either in a 90 C water bath for 30 minutes or cooked ohmically at a voltage gradient
where [sigma] = the ambient water conductivity ([micro]S/cm) and E = the voltage gradient
[V/cm] (Kolz, 2006).
Four indirect inspection techniques were used during the test program, including Pipeline Current Mapper (PCM), Alternating Current Voltage Gradient
(ACVG), Direct Current Voltage Gradient
(DCVG), and Close Interval Survey (CIS).
With direct current voltage gradient
(DCVG) equipment can be make an inspection concerning the integrity of cathode protection grounded.
Step voltages--there is a dangerous voltage gradient
between the feet of a person standing on earth The earthing grid can be used to dissipate fault currents to remote earth and reduce the voltage gradients
in the earth.
It is reported that the electrical stress caused by the voltage gradient
in the material, the thermal stress caused by a combination of losses generated in the motor and the ambient, as well as the environmental stress caused by oxidation will lead to degradation of polymeric insulation (10).
Figure 1 illustrates the thermal gradient and generated voltage gradient
on this model geometry at 20.
Mammalian cortical astrocytes align themselves in a physiological voltage gradient
PCM with A-Frame which measures voltage gradient
and its direction.
BAC has surveyed many thousands of kilometres of pipelines around the world carrying out full audits of cathodic protection systems and close interval potential surveys, Pearson surveys, current attenuation surveys and DC voltage gradient
The fast raising pulse spreads along the coil and creates a voltage gradient
along the turns.
The J wave is produced by a transmural voltage gradient
during initial ventricular repolarization, which results from the presence of a prominent action potential notch mediated by the transient outward potassium current (Ito) in the epicardium (1).