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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Saturn I /SA-10/ launch vehicle and Launch Complex 37B - RL-10 A-3 engine and hydraulic systems
Saturn I /SA-8/ launch vehicle and Launch Complex 37B - pneumatic distribution system
Pneumatic system for distributing nitrogen and helium to Saturn I /SA-10/ launch vehicle
Inflight stage separation and flight termination system for Saturn I /SA-10/ launch vehicle
Fuel storage, transfer, and supply systems for Saturn I /SA-8/ launch vehicle and Launch Complex 37B
Saturn I /SA-8/ launch vehicle and Launch Complex 37B liquid hydrogen fuel system
Saturn I /SA-8/ launch vehicle and Launch Complex 37B - nitrogen and helium storage facility
Nitrogen and helium storage facility for Launch Complex 37B of Saturn I /SA-10/ launch vehicle
Saturn I /SA-8/ launch vehicle and Launch Complex 37B - subsystems and components of separation and flight termination systems
Morphological, physiological, and cultural characteristics of bacterial isolants from rigorous environments
Computer programs for digital simulations of nominal interplanetary free fall trajectories
Double precision digital computer program for computing parameters and initial conditions of matched heliocentric and planetocentric phases of interplanetary trajectories
Computer program for optimization of low thrust interplanetary trajectories assuming constant and continuous thrust from given initial and final position, velocity and flight time
Computerized simulation of mission profiles for inertial navigation of low thrust spacecraft in both heliocentric transfer and planetocentric spiral
Voyager spacecraft configuration, systems and trajectory analyses, and system integration interfaces
A mathematical model of the erythropoiesis on total red blood cell mass is presented. The loss of red cell mass has been a consistent finding during space flight. Computer simulation of this phenomenon required a model that could account for oxygen transport, red cell production, and red cell destruction. The elements incorporated into the feedback regulation loop of the model are based on the accepted concept that erythrocyte production is governed by the balance between oxygen supply and demand in the body. The mechanisms and pathways of the control circuit include oxygenation of hemoglobin and oxygenation of tissues by blood transport and diffusional processes. Other features of the model include a variable oxygen-hemoglobin affinity, and time delays which represent time for erythropoietin (erythrocyte-stimulating hormone) distribution in plasma, and time for maturation of the erythrocytes in bone marrow.
The Cassini RADAR is a multimode instrument built both by NASA/JPL and ASI/Alenia Spazio. The instrument operates in radiometer-only, scatterometer, altimeter, and imaging modes. This paper will describe this interesting unique radar and how it will be used to collect data at Titan.
Figures of Merit (FoMs) and the FoM software provide a method for quantitatively evaluating the quality of a regolith simulant by comparing the simulant to a reference material. FoMs may be used for comparing a simulant to actual regolith material, specification by stating the value a simulant s FoMs must attain to be suitable for a given application and comparing simulants from different vendors or production runs. FoMs may even be used to compare different simulants to each other. A single FoM is conceptually an algorithm that computes a single number for quantifying the similarity or difference of a single characteristic of a simulant material and a reference material and provides a clear measure of how well a simulant and reference material match or compare. FoMs have been constructed to lie between zero and 1, with zero indicating a poor or no match and 1 indicating a perfect match. FoMs are defined for modal composition, particle size distribution, particle shape distribution, (aspect ratio and angularity), and density. This TM covers the mathematics, use, installation, and licensing for the existing FoM code in detail.