Conductivity and noise problem of plasma antennas
Investigation the plasma antenna on the basis of UHF discharge near the second Langmuir resonance (subresonance) is continuing. Measurements are given on the admission of signals. It is provied reducing the thermal and fluctuation noise of UHF discharge compared with metal.
Plasma antennas based on UHF discharge
Studied are the antenna properties of the UHF discharge plasma at the threshold of the resonance of the electron Langmuir frequency with the pump second harmonic. The results of experimental measurements of some characteristics of a plasma antenna-amplifier at the LF range are shown. A mathematical model of a similar antenna, which allows proceeding to a physical model of the distributed parametric amplifier, is built.
Creativity profile of university and conservatory dance students.
What are dance students' creative potential, Special personality characteristics and preferences for high energy activities? Using standardized and original paper and pencil instruments, comparisons were made among dance students in university and conservatory settings, college students and art students. The results demonstrated that dance students are creative, show strong preference for dynamic figures, and have distinct personality characteristics. The university dance students differed from the conservatory students in several important ways.