Predictions of the recently developed paleoclassical transport model are compared with data from many toroidal plasma experiments: electron heat diffusivity in DIII-D, C-Mod and NSTX ohmic and near-ohmic plasmas; transport modeling of DIII-D ohmic-level discharges and of the RTP ECH “stair-step” experiments with eITBs at low order rational surfaces; investigation of a strong eITB in JT-60U; H-m...

The magnetic field of the Earth is generated by convection in the liquid-core and the energy necessary for this process comes from the cooling of the core which provide several buoyancy sources. The thermodynamics of this system is used to relate the Ohmic dissipation in the core to all energy sources and to model the thermal evolution of the core. If the same dissipation is maintained just bef...

The kinematic evolution of axisymmetric magnetic and electric elds near a rotating black hole is investigated numerically in Kerr geometry. In the cases investigated it is found that a magnetic eld cannot be sustained against Ohmic dissipation. In at space, this result is known as Cowling's anti-dynamo theorem. No support is found for the possibility that a gravitomagnetic dynamo eeect could le...

Ohmic heating has been attempted at various times during the history of food processing, and finally appears to be finding its niche in a range of applications (both food and non-food). Recent developments in electrode materials and solid-state power supply technology to minimize electrolytic effects and reduce cost have made the technology commercially attractive. The number of commercial supp...

We investigate a possibility of heating of the loops and other closed magnetic structures in active regions of the solar corona by the flow of solar wind (plus other flows that may be present) across the magnetic field lines (that are perpendicular to the flow), in a similar manner as a conventional MHD generator works. A simple model is formulated which allows to calculate the typical currents...

The ion temperature was estimated using measurements provided by optical system based on the two-grating spectrometer on the COMPASS tokamak. It was done by analysis of Doppler-broadened CIII spectral lines at about 465 nm. The ion temperature in the range of 30–35 eV was measured at the plasma edge in short low-current ohmic discharges.

It is established that the formation of rotationally supported disks during the main accretion phase of star formation is suppressed by a moderately strong magnetic field in the ideal MHD limit. Non-ideal MHD effects are expected to weaken the magnetic braking, perhaps allowing the disk to reappear. We concentrate on one such effect, ambipolar diffusion, which enables the field lines to slip re...

The effect of ohmic and conventional heat processing of different food products on their chemical and physical parameters was studied. Depending on the food being analysed, parameters such as pH, total solids, ash, titratable acidity, ascorbic acid, total sugars, total fatty acids, total phenolic compounds, and anthocyanins content were determined before and after ohmic and conventional pasteur...

Determining the electrical properties of the extracellular space around neurons is important for understanding the genesis of extracellular potentials, as well as for localizing neuronal activity from extracellular recordings. However, the exact nature of these extracellular properties is still uncertain. Here, we introduce a method to measure the impedance of the tissue, one that preserves the...

In this study, heating patterns of multiphase foods during combined microwave and ohmic heating were explored. A continuous flow microwave and ohmic combination heater was designed and fabricated. In order to achieve the maximum energy efficiency and heating uniformity, impedance matching of the microwave cavity was carried out by a vector network analyzer and electric field analysis was conduc...