نتایج جستجو برای: plasma parameters
تعداد نتایج: 913771 فیلتر نتایج به سال:
Background: Vitamin C is a major antioxidant in lung airways and also functions against external insulting oxidant sources such as smoke and environmental contaminants. The aim of study was to assess the vitamin C in asthmatic patients, by it’s measurement in plasma and white blood cells (WBC). Materials and Methods: In a case–control study 50 asthmatic patients and 50 healthy person were ran...
Observations by the RHESSI satellite of large polarization of the prompt γ-ray emission from the Gamma Ray Burst GRB0212206 (Coburn & Boggs 2003) imply that the magnetic field coherence scale is larger than the size of the visible emitting region, ∼ R/Γ, where R is the radius of the flow, Γ is the associated Lorentz factor. Such fields cannot be generated in a causally disconnected, hydrodynami...
the experimental studies of methane conversion to higher hydrocarbons and methanol using a dielectric barrier discharge (dbd) reactor are presented in this article. the process is carried out at ambient atmospheric pressure and temperature. the dbd reactor is stimulated by an alternative voltage of 50 hz and amplitude of max.23kv. the examination of the effect of voltage and flow rates on metha...
in this paper, construction of triplet atmospheric plasma jet using argon, air, oxygen and nitrogen gases is reported. bactericidal effect of the plasma jet is also investigated. to that end, longitudinal geometric configuration for the electrodes was chosen because it would increase the jet length. electrical characteristics, jet length dependencies on the applied voltage and gas flow rate wer...
Observations by the RHESSI satellite of large polarization of the prompt γ-ray emission from the Gamma Ray Burst GRB021206 (Coburn & Boggs 2003) imply that the magnetic field coherence scale is larger than the size of the visible emitting region, ∼ R/Γ, where R is the radius of the flow, Γ is the associated Lorentz factor. Such fields cannot be generated in a causally disconnected, hydrodynamic...
In this process after making proper chamber to produce plasma in d.c. Glow regime and readiness of samples and doing microhardness and PIXE analyzes, samples nitriding began in different conditions. The hardness changes and the depth of hardened layer of 321, 316 and 304 steels are studied as a function of discharge parameters [8, 9]. The plasma was produced using a mixture of N2 and H2 gases...
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