Global Monitoring of Ionospheric Total Electron Content Using the IGS Network
The GPS satellites and a world-wide network of dual-frequency GPS receivers allow one to.
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The GPS satellites and a world-wide network of dual-frequency GPS receivers allow one to.
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Reliability analysis of Centaur inertial guidance system first gimbal stabilization loop
Absorption transition fine structure measurements for bulk rare earth garnets single crystals using reflectivity techniques
This space bioprocessing contract effort was comprised of four general objectives. These were: (1) the evaluation of current separation processes, (2) the identification of problems relevant to the separation of important biologicals, (3) the identification of ground-based assay methods needed for pre- and postflight analysis of space bioprocessing separation technology; and (4) the establishment of methods to determine the efficiency of space bioprocessing separation procedures. Immunology was deemed advantageous to study the diversity of cells and cell products involved and the extensive interest being given to their separation. Upon recognition of a cellular or molecular agent as foreign to the body, the immune system becomes activated to produce cells whose function is to destroy that agent and cell products whose function is to inactivate the agent and assist in its destruction. Long after the agent is removed from the body, some cells remain in a state of readiness to continue these destructive actions specifically against that agent should further exposure to it occur. This is the basis of acquired immunity to disease.
In the position paper we first provide a cursory look at GPS transmitter clock variability in the post-SA era to see how well one can interpolate and extrapolate as a function of frequency, extrapolation time, and transmitter ID.
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