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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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Single highest peak /SHP/ maximum response to random noise excitation of distributed elastic structures with rectangular geometry, considering beam and flat plate
During the past few years, considerable effort has been exerted by both industry and government to improve the performance of space power systems. One of the significant advances has been the development of practical Maximum Power-Point Tracking (MPPT) systems. This paper presents the background and evolution of a second-generation (high-speed) MPPT system capable of operation with solar arrays with rapidly fluctuating parameters due to mission operation (e.g., spin-stabilized spacecraft). An experimental model of the high-speed MPPT system has been constructed and tested. Results from these tests are presented herein. The second-generation MPPT system provides a means of efficient power conditioning that can result in significant increases over conventional systems in space-power system capability. Of additional importance is the applicability of the basic technology to all types of spacecraft, and the wide variety of power-system configurations with which the high-speed MPPT system concept may be used.
Variational approach to conical bodies having maximum lift drag ratio at hypersonic speeds, assuming Newtonian pressure distribution and constant friction coefficient
Paper presents mathematical comparison of several techniques with the limiting slope technique for data reduction and reconstruction. Limiting slope method results in maximum possible RMS error versus data compression ratio advantage of 2-to-1 over step and fan methods and 3-to-1 over the two point projection method.
Maximum number of binary collisions for three relativistic point particles
Parameters of acoustic liner for maximum liner damping for rocket engines
Satellite power system configurations for maximum utilization of power
Empirical analysis of 10 to 15 km maximum winds to determine Apollo and AAP launch opportunities, Cape Kennedy, Florida
Maximum oxygen consumption as index of work output
Maximum range trajectories for rocket propelled lunar flying vehicles in uniform gravitational field
Maximum number of binary collisions for three particles with zero range forces in relativistic rescattering singularities studies
Maximum principle in integral form for optimal control problems with delay differential system equations, using vector matrix notation
Direction of maximum turbulent vorticity in turbulent shear flow, determining alignment
Polar exosphere near solar maximum investigation by Explorer 19 and Explorer 24 drag satellites, considering density and atomic oxygen concentration measurements
Maximum a posteriori estimate of modulation on carrier with noise, discussing iterative technique and FM test
Spacecraft solar cell near-maximum power operation by tracking optimum value with array temperature sensor
Maximum likelihood identification of stochastic linear systems
Adaptive random search algorithm for implementation of maximum principle