Atmospheric pressure 3 Carrier concentration 3 Current voltage curve 3 Direct current plasmas 3 Electron density measurement 3 Electron temperature 3 Heavy particles 3 Ion saturation 3 Ion saturation current 3 Kinetic equilibrium 3 Langmuir probe diagnostics 3 Langmuir probe measurements 3 Langmuir probes 3 Large deviations 3 Nitrogen flow rates 3 Nominal power levels 3 Nonlocal thermal equilibrium 3 Plasma jets 3 Probes 3 Radial profiles 3 Spectroscopic technique 3