A sub-critical microwave discharge is used to achieve a stable ignition and combustion of lean air-fuel mixtures in long tube. The burnt at the presence initiator with quasi-optical beam. resonance way initiation more effective compared traditional plasma-assisted ways stabilization combustion. experimental observations show that air propane mixture tube achieved low limit fuel/air ratio lower ...

A ferroelectric cathode is employed for the first time as the electron-beam source in a microwave amplifier tube. A PLZT 12/65/35 ferroelectric ceramic with a high dielectric constant ( 4000) is used in a form of a hollow cathode. The tube is operated in poor vacuum conditions (2 10 Torr) at room temperature, in a mechanism of a cyclotron-resonance maser amplifier. The device operates near the ...

The use of the properties of the plasma generated inside the glow lamps or gas filled electron tube as an unconventional detection method for various physical effects was reported in several papers. For example in [1], [2] the experimental setups containing discharge tubes used to detect the external microwave field are presented. In this paper the effect of an external electrode on the electri...

This paper describes a microwave plasma jet in an argon atmosphere capable of generating filamentary streamer discharges within the entire quartz tube excited by surface waves of surface plasmon polaritons (SPPs) located in the tube. Several discharge streamers are immediately produced at the end of the copper wire when incident power reaches 20 W. From simulations, the wavelength of the surfac...

BaTiO3-based positive temperature coefficient (PTC) thermistors have been prepared by microwave sintering. The sintering process was carried out in a 2.45 GHz multimode microwave tube furnace without any susceptor The heating behavior of the PTC material, influence of processing conditions on microstructure, and electrical properties of the sintered samples were investigated. The sintering temp...

We report the complex microwave conductivity, σ = σ 1 − iσ 2 , of Na-DNA powders, which was measured from 80 K to 300 K by using a microwave cavity perturbation technique. We found that the magnitude of σ 1 near room temperature was much larger than the contribution of the surrounding water molecules, and that the decrease of σ 1 with decreasing temperature was sufficiently stronger than that o...

We discuss annular confinement for electrons on liquid helium surface induced by a tubular electrode submerged beneath the surface. For shallow layer above tube resulting potential has minimum off axis of tube. The symmetry transitions in ground-state driven external magnetic field can be resolved microwave spectroscopy provided that radii first and second Rydberg subbands vertical quantization...

Nickel nanorods encapsulated inside the multiwalled carbon nanotubes were prepared using microwave plasma chemical vapor deposition (MPCVD) technique. The as prepared tubes were investigated by scanning electron microcopy (SEM), x-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). HRTEM study of these tubes exhibits long, good crystalline nickel filled CNTs with...