Neutral reactions involving hydrogen and other minor constituents

Neutral reactions involving hydrogen and other minor chemical elements are reviewe

Reactions of metastable nitrogen atoms

Line absorption analysis and reaction kinetics of two metastable nitrogen atomic energy level

Kinetics of the reaction OH (v equals 0) plus O3 yields HO2 plus O2

The rate constant (kl) of the reaction OH(v=o) + O3 yields HO2 + O2 measured over the temperature range 220 to 450 K at total pressures between 2 and 5 torr using ultraviolet fluorescent scattering for the detection of OH radicals. An Arrhenius expression was obtained, and the rate constant for the reaction HO2 + O3 yields OH + 2O2 was inferred to be less than 0.1 kl over the entire temperature interval

Kinetics of the O plus O3 reaction

The gas phase reaction O + O3 yields 2 O2 was studied directly in a flow system under conditions of excess ozone, with O-atoms produced by thermal decomposition of Ar-O3 mixtures on a Nernst Glower, and measurement of the spatial O-atom decay by O + NO chemiluminescence with small, variable NO additions. The rate constant was found to be (9.6 + or - 0.7) x 10 to the minus 15th power cu/cm/molecule/sec at 298 K. Over the temperature range 269 to 409 K a rate expression (1.78 + or - 0.28) x 10 to the 11th power exp((-4.46 + or - 0.10 kcal/mole)/RT) is reported. The effects of interference by O2 (delta sub g) and product excitation are discussed, and the present results are compared with earlier investigations

Technology utilization review and analysis, Volume I Final report, 28 Feb. - 31 Aug. 1964

Technology utilization review and analysis of Ranger Block III program - protein detection, biochemical battery, and solar cell technolog

Recurrent microblazar activity in Cygnus X-1?

Recurrent flaring events at X- and soft gamma-ray energies have been recently reported for the galactic black hole candidate Cygnus X-1. The observed fluxes during these transient outbursts are far higher than what is observed in ``normal'' episodes. Here we suggest that the origin of this radiation is non-thermal and produced by inverse Compton interactions between relativistic electrons in the jet and external photon fields, with a dominant contribution from the companion star field. The recurrent and relatively rapid variability could be explained by the precession of the jet, which results in a variable Doppler amplification.Comment: 4 pages, 5 figures, Accepted for publication in Astronomy & Astrophysics Letter

Oscillator strength of the resonance transitions of ground-state N and O

Oscillator strength of resonance transitions of ground state nitrogen and oxyge

Joining techniques for fabrication of composite air-cooled turbine blades and vanes

Activated diffusion brazing studies of joining methods for composite air-cooled turbine blade and vane fabricatio