ELECTROPHYSICAL INSTALLATION BASED ON BARRIER DISCHARGE FOR HYDROCARBON SYNTHESIS

In an electrophysical installation, a mixture of CH4 and C2H6 was treated by a barrier discharge. The hydrocarbon conversion was experimentally recorded. For the developed plasma chemical reactor, with help of the solver "ZDPlasKin", a theoretical evaluation of the plasma kinetics processes occurring in the discharge was carried out. The experimental results are in good agreement with the theoretical estimate.217-21

Unified description of magic numbers of metal clusters in terms of the 3-dimensional q-deformed harmonic oscillator

Magic numbers predicted by a 3-dimensional q-deformed harmonic oscillator with Uq(3)>SOq(3) symmetry are compared to experimental data for atomic clusters of alkali metals (Li, Na, K, Rb, Cs), noble metals (Cu, Ag, Au), divalent metals (Zn, Cd), and trivalent metals (Al, In), as well as to theoretical predictions of jellium models, Woods-Saxon and wine bottle potentials, and to the classification scheme using the 3n+l pseudo quantum number. In alkali metal clusters and noble metal clusters the 3-dimensional q-deformed harmonic oscillator correctly predicts all experimentally observed magic numbers up to 1500 (which is the expected limit of validity for theories based on the filling of electronic shells), while in addition it gives satisfactory results for the magic numbers of clusters of divalent metals and trivalent metals, thus indicating that Uq(3), which is a nonlinear extension of the U(3) symmetry of the spherical (3-dimensional isotropic) harmonic oscillator, is a good candidate for being the symmetry of systems of several metal clusters. The Taylor expansions of angular momentum dependent potentials approximately producing the same spectrum as the 3-dimensional q-deformed harmonic oscillator are found to be similar to the Taylor expansions of the symmetrized Woods-Saxon and wine-bottle symmetrized Woods-Saxon potentials, which are known to provide successful fits of the Ekardt potentials.Comment: 23 pages including 7 table

Dielectric Barrier Discharge in Atmospheric Air for Different Barrier Materials

This paper deals with the ignition of a diffuse dielectric barrier discharge in air at atmospheric pressure with a high voltage rectangular pulse supply. The study is focused on the effects of dielectric materials. The current and voltage waveforms of discharges with different barriers look similar. But the discharge development process can be different. It is described by many synchronous electron avalanches in a case of alumina ceramics, and by a streamer - in a case of acrylic glass

ELECTROPHYSICAL INSTALLATION BASED ON BARRIER DISCHARGE FOR HYDROCARBON SYNTHESIS

217-217In an electrophysical installation, a mixture of CH4 and C2H6 was treated by a barrier discharge. The hydrocarbon conversion was experimentally recorded. For the developed plasma chemical reactor, with help of the solver "ZDPlasKin", a theoretical evaluation of the plasma kinetics processes occurring in the discharge was carried out. The experimental results are in good agreement with the theoretical estimate