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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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Testing of operating envelope to support DF LAW operations
The primary objective of the present work was to investigate the potential impact of likely process variations on the nominal glass composition for LAW AP-107 waste that is determined by the LAW glass correlation (AP107WDFL). This was accomplished by evaluating glass and feed variations at crucible scale and DM100 melter tests.
Catalyst-heating operation in a medium-duty diesel engine: operating strategy calibration, fuel reactivity, and fuel oxygen effects.
Abstract not provided.
Compressed gas system operates semitrailer brakes during winching operation
To move van-type semi-trailers into and out of confined spaces, an auxiliary braking system is mounted on a standard dolly converter. Compressed nitrogen is used to actuate the brakes which are used in conjunction with a power winch.
Operations and facilities - DSN operations
Deep Space Stations configured as phase sensitive interferometer to measure apparent change in angular separation between radio sources near time of occultation by sun
Operations and facilities - DSIF operations
RF spectrum analysis technique for DSIF telecommunications compatibility testing
Effect of design changes of operating conditions on combustion and operational performance of a 28-inch diameter ram-jet engine
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Operations research prospects for libraries: The realities and ideals or strategies for operations research in libraries
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The operational feasibility of orbit and attitude determination for the Geostationary Operational Environmental Satellite (SMS/GEOS) using only imagery data
Experimental results from three evaluation periods on three geostationary spacecraft (SMS-2, GOES-1, and GOES-2) are presented. It is shown that using existing landmark extraction and identification techniques (1) for east geostationary spacecraft, a high quality orbit and attitude state is maintained with imagery data only, and (2) for west geostationary spacecraft, a high quality orbit and attitude state is recovered with imagery data only in approximately seven days.
System implementation and operations session: Implementation and operation of yield forecasting and crop growth stage estimation
There are no author-identified significant results in this report.
System implementation and operations session: Accuracy assessment, system implementation and operation
There are no author-identified significant results in this report.
Development of automated rendezvous and proximity operations techniques for rendezvous and close-in operations and satellite servicing
The development of freeflyer maneuvering system and shuttle orbiter flight profiles and hardware/software requirements that will provide and automated rendezvous, station keeping, and docking capability is discussed. Automated control techniques, sensors, target vehicle requirements, and a soft docking system are addressed.
Multisatellite attitude determination/optical aspect bias determination (MSAD/OABIAS) system description and operating guide. Volume 3: Operating guide
The Multisatellite Attitude Determination/Optical Aspect Bias Determination (MSAD/OABIAS) System, designed to determine spin axis orientation and biases in the alignment or performance of optical or infrared horizon sensors and Sun sensors used for spacecraft attitude determination, is described. MSAD/OABIAS uses any combination of eight observation models to process data from a single onboard horizon sensor and Sun sensor to determine simultaneously the two components of the attitude of the spacecraft, the initial phase of the Sun sensor, the spin rate, seven sensor biases, and the orbital in-track error associated with the spacecraft ephemeris information supplied to the system. In addition, the MSAD/OABIAS system provides a data simulator for system and performance testing, an independent deterministic attitude system for preprocessing and independent testing of biases determined, and a multipurpose data prediction and comparison system.
Effect of locus of resource control on operational efficiency in distributed operations
The following topics are presented in view graph form: space network control (SNC) usage in the Advanced Tracking and Data Relay Satellite (ATDRSS) era; an acronym and icon list; demands of the SNC; tightness of resources coupling; sharing information and sharing control; potential ways of distributing control; efficiency problems unrelated to distribution of control; efficiency problems related to distribution of control; and recommendations.
Normal Accelerations and Operating Conditions Encountered by a Helicopter in Air-mail Operations
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Analysis of operational airline data to show the effects of airborne weather radar on the gust loads and operating practices of twin-engine short-haul transport airplanes
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Summary of the first sample of VGH data of normal accelerations and associated operating conditions on two four-engine transport airplanes in commercial operations
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Summary of normal accelerations, gust velocities, and operating practices, from April to August 1949 of a twin-engine airplane in commercial transport operations
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