Now showing items 1-10 of 1144
Absolute differential and integral cross sections for charge transfer of state-selected keV oxygen ion with oxygen(2)
Absolute differential and integral charge transfer cross sections have been measured for 0.5, 0.85, 1.5, 2.8, and 5.0 keV O$\sp+$ with O$\sb2$ at scattering angles between 0.01$\sp\circ$ and 3.50$\sp\circ$ in the laboratory ...
Electrodynamics of the low-latitude ionosphere
We have undertaken a study of the low and mid latitude ionospheric electric field pattern, during both magnetospherically quiet and active periods. Our analysis can be conveniently split into two parts. i.In an effort to ...
Microwave and optical sensor fusion for the shape extraction of three-dimensional space objects
Two sensors that have been proposed for use on a space robot are cameras and radar. Considered individually, neither of these sensors provides enough information for a computer to derive a good surface description of a ...
The scattering of protons by calcium-40
Abstract Not Available.
Polar cap response to the 18-21 October 1995 magnetic cloud event
A statistical study of ten years of solar wind particle and magnetic field observations, ionospheric convection measurements, and geomagnetic index data is combined with a case study of the interaction of the 18-21 October ...
Gamma ray observations of black hole candidates nova Ophiuchus 1993 and nova Velorum 1993
Results of spectral analysis and time series analysis of the transient source x-ray nova Velorum 1993 (GRS 1009-45) and x-ray nova Ophicuhus 1993 (GRS 1716-249) are presented. These data were accumulated using the OSSE ...
A statistical investigation of ozone exposure assessment by direct and indirect measurement
Recent studies have proposed the application of exposure-based criteria in developing alternative primary ambient ozone standards. Historically, epidemiological studies of ozone have approached exposure assessment in a ...
Coupling of two computational models of the Earth's magnetosphere
The first major step has been completed in a long range project to merge the Fedder-Lyon Global 3D magnetohydrodynamic code and the Rice Convection Model (RCM) of the Earth's magnetosphere. Using MHD results as initial and ...
Earthward motion of depleted flux tubes in the Earth's plasma sheet: MHD model calculations
A magnetohydrodynamic (MHD) theory has been developed for the motion of a thin magnetic flux tube through a two-dimensional stationary medium that is in MHD equilibrium. The flux tube is represented as a one-dimensional ...
ISOTOPIC ANOMALIES FROM NUCLEAR PROCESSES IN STARS
Specific nucleosynthetic environments are examined as the sources for the anomalous xenon observed in meteorite samples. A simplified nuclear network is used to allow rapid estimation of isotopic abundances over a wide ...