Now showing items 1-10 of 44
Nitrogen and sulphur over the Western Atlantic Ocean
This paper reports new surface and aircraft measurements of sulphur and nitrogen species made during WATOX-85 at Lewes, Delaware and Bermuda. Concentrations of most species measured in this portion of the western Atlantic ...
A Balloon-Borne Tunable Diode Laser Absorption Spectrometer for Multispecies Trace Gas Measurements
(Optical Society of America, 1985)
A balloon-borne tunable diode laser absorption spectrometer capable of in situ measurement of the concentrations of several stratospheric trace gases simultaneously in the same parcel of air is described. Laboratory tests ...
Vertical Profiles of Ethane and Propane in the Stratosphere
Stratospheric measurements of the C2H6 mixing ratio up to 30 km and of the C3H8 mixing ratio up to 18 km altitude are reported. The observed vertical gradient of C2H6 is much weaker than that calculated from a one-dimensional ...
Determination of Peroxyacetylnitrate (PAN) in Unpolluted Areas
(Taylor & Francis, 1985)
The Seasonal Variation of Light Nonmethane Hydrocarbons in the Antarctic Troposphere
About 80 samples of antarctic air were collected between 1982 and 1985 at the “Georg von Neumayer” station (70°36′S and 8°22′W) and analyzed for ethane, ethene, acetylene, propane, and propene. Yearly average mixing ratios ...
Mass accommodation coefficient for HO2 radicals on aqueous particles
The rate of reaction of gas phase HO2 radicals with a monodisperse, submicrometer aerosol was measured in a flow tube reactor at atmospheric pressure. At the relative humidity of the experiments (75%), the aerosol consisted ...
Optimal paths for thermodynamic system: the ideal Otto cycle
(American Institute of Physics, 1982)
We apply the method of optimal control theory to determine the optimal piston trajectory for successively less idealized models of the Otto cycle. The optimal path has significantly smaller losses from friction and heat ...
Measurement of Gas Phase Hydrogen Peroxide in air by Tunable Diode Laser Absorption Spectroscopy
Tunable diode laser absorption spectroscopy has been applied to the determination of gas phase hydrogen peroxide in ambient air with sub-ppbv (parts per billion by volume) detection limits for measurement times of the order ...