Prior to commencing
ohmic heating, it is assumed that the entire sample is at a uniform temperature [T.sub.0].
Vlamos, "Some interesting special cases of a non-local problem modelling
Ohmic heating with variable thermal conductivity," Proceedings of the Edinburgh Mathematical Society.
12) proved to be very difficult because of the problem of subtraction of the
ohmic conductivity contribution (Table 5).
In order to develop an estimate of the
ohmic losses, we need to consider all conductors at the same time.
Ohmic microswitches make direct electrical contact between metal conductors, and wear ultimately limits lifetime.
The electrical loss mechanisms in the RF devices are
ohmic losses due to resistivity of conductors, dielectric losses due to the imaginary component of the dielectric constant, parasitic coupling and radiation losses.
While much of the speculation about ultimate commercial application of aseptic processing witch low-acid particulates has centered on newer sterilization technology, such as
ohmic or high-pressure, Tetra Pak's application uses heat, albeit with higher temperatures and shorter treatment times than is used in conventional canning processes.
This means: raising the test current by a factor of 2 will raise
ohmic power losses in relays, cable, and needles by a factor of 4.
They cover silicon carbide surface cleaning and etching; processing and characterizing
ohmic contacts to silicon carbide; Schottky contacts to silicon carbide: physics, technology, and applications; and the status and prospects of silicon carbide power devices.
Power efficiency degrades because of various factors, such as
ohmic loss [P.sub.ohm] due to finite conductivity of the source, radiation loss [P.sub.rad], and dielectric loss [P.sub.tissue] inside the lossy tissue.