Results 261 to 270 of about 19,671,460 (302)

Relaxation Processes in High Frequency Electromagnetic Fields

1992
The preceding chapters on coupled transport and kinetic processes in electrolyte solutions reveal the complexity of charge transport, but leave the reader with unknown quantities such as the rate constants of ion-aggregate formation and decomposition.
Pierre Turq, Josef M. G. Barthel, Marius Chemla   +2 more
openaire   +1 more source

Effects of high-frequency electromagnetic fields on human lymphocytes in vitro

Mutation Research/Genetic Toxicology and Environmental Mutagenesis, 1997
Human peripheral lymphocytes were incubated in the presence of high-frequency electromagnetic fields of 380, 900 and 1800 MHz. The measured endpoints were cell cycle progression and the frequencies of sister-chromatid exchanges. No differences between treated and control cultures could be found.
A, Antonopoulos, H, Eisenbrandt, G, Obe
openaire   +2 more sources

Effects of Pulsed High-Frequency Electromagnetic Fields on the Neuroendocrine System

Neuroendocrinology, 1998
The influence of pulsed high-frequency electromagnetic fields emitted from a circularly polarized antenna on the neuroendocrine system in healthy humans was investigated (900 MHz electromagnetic field, pulsed with 217 Hz, average power density 0.02 mW/cm²).
K, Mann, P, Wagner, G, Brunn, F, Hassan, C, Hiemke, J, Röschke   +5 more
openaire   +2 more sources

Effects of Pulsed High-Frequency Electromagnetic Fields on Human Sleep

Neuropsychobiology, 2008
In the present study we investigated the influence of pulsed high-frequency electromagnetic fields of digital mobile radio telephones on sleep in healthy humans. Besides a hypnotic effect with shortening of sleep onset latency, a REM suppressive effect with reduction of duration and percentage of REM sleep was found.
K, Mann, J, Röschke
openaire   +2 more sources

A Method of Measuring the Field Strength of High-Frequency Electromagnetic Fields

Proceedings of the IRE, 1948
An analysis of a case of an electron beam directed parallel to a uniform steady magnetic field with a high-frequency electromagnetic field at right angles to the magnetic field results in a relation among the variables which is particularly simple, if the magnetic field is adjusted so that e s s/ mc ωco wherωco is the frequency of the electromagnetic ...
openaire   +1 more source

Degassing of a hydrocarbon fluid in a high-frequency electromagnetic field

Journal of Engineering Physics and Thermophysics, 2007
The results of experimental investigations of degassing of hydrocarbon fluids in a high-frequency electromagnetic field and on electric heating are presented. Its relationship to a change in temperature and to the dielectric properties of fluids has been established.
M. A. Fatykhov, R. I. Idrisov
openaire   +1 more source

The electromagnetic field characteristics of the high-frequency torch discharge

Czechoslovak Journal of Physics, 2006
The axial distribution measurements of the electric field harmonic component amplitudes of the high-frequency torch discharge operating in air, argon and helium were carried out. The truth of the high frequency torch discharge model, considering reflection of the electromagnetic wave at the end of the discharge channel, was examined on basis of this ...
Yu. Yu. Lutsenko, V. A. Vlasov
openaire   +1 more source

The synthesis of boron carbide in a high frequency electromagnetic field

Journal of the Less Common Metals, 1979
Abstract Boron carbide was synthesized by direct inductive heating of a charge of boron oxide and carbon black. A high frequency generator (frequencies of several megahertz) was used for synthesis; the charge was heated in a reactor made of dielectic material.
openaire   +1 more source

Low Frequency Electromagnetic Fields in High Contrast Media

2000
Using variational principles we construct discrete network approximations for the Dirichlet to Neumann or Neumann to Dirichlet maps of high contrast, low frequency electromagnetic media.
Liliana Borcea, George C. Papanicolaou
openaire   +1 more source

Plasma Created in High-Frequency Electromagnetic Fields

2021
Alexander Fridman, Lawrence A. Kennedy
openaire   +1 more source