Assessing the threat of undersampled ionospheric irregularities for wide area differential GPS systems
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The approach outlined in this paper conservatively bounds the ionospheric errors even for the worst observed ionospheric conditions to date, using data sets taken from the operational receivers in the WAAS reference station network.
We present H I synthesis array mapping and CCD photometry in B and R for MCG+00-32-16. The H I disk is rotating in such a way that the side of the galaxy closer to the sight-line to the quasar has the larger velocity difference from the absorber.
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Spherical wave propagation through ionospheric inhomogeneities
Seal assembly consisting of a steel V-ring and a perforated tubular fluorocarbon polymer O-ring provides a barrier to gaseous and liquid hydrogen under high pressure.
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Cross correlation functions between two spherical waves passing through anisotropic slab
Radiation of prescribed polarization from cross- dipole antenna on aircraft carrier
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Simple, rapid method measures the surface area of a pattern such as comprised by the conductors on a printed circuit board. A negative or positive film of the circuit layout is placed over a uniformly illuminated translucent surface and the proportion of light transmitted to silicon solar cells is determined.