Time transfer experiments for DCS digital network timing and synchronization
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Alexander, P.↗
Engineering topics
Graham, J. W.
Publications and source records attributed to Graham, J. W..
Tribological properties of self-lubricating fluoride-metal composites to 900 C (1650 F): A review and some new developments
The friction and wear behavior of some fluoride-metal, self-lubricating composites are summarized. Fluoride-infiltrated sintered nickel alloy composites and plasma-sprayed, co-deposited fluoride-nickel alloy composites are described. The importance of proper surface-conditioning of the composites is stressed. Performance of fluoride-metal composites in some machine application evaluation is discussed.
Sliney, H. E.↗
An isotope heat source integrated with a 7 kW/e/ to 25 kW/e/ Brayton cycle space power supply.
The power system described is intended for applications in a manned space mission. The Isotope Reentry Vehicle (IRV) developed is considered together with the Heat Source (HS), the Heat Source Heat Exchanger and the Brayton Cycle Power Conversion Module. Other subjects discussed include the IRV/Brayton cycle spacecraft integration concept, abort and deorbit mechanization, emergency cooling methods, and crew shielding requirements. Mounting and integration for the IRV is to a large degree controlled by nuclear safety requirements. Another major factor in the installation concept is the type of emergency cooling or passive heat dump mode used in rejection of HS energy.
Ryan, R. L.↗
Ablative leading edge design concepts for the shuttle orbiter
Design of low cost ablator leading edge for space shuttle thermal protection system
Graham, J. W.↗
Isotope reentry vehicle design study preliminary design - Phase 2 Final report
Preliminary design and performance considerations for 25 kW Pu 238 heat source Isotope Reentry Vehicle
Graham, J. W.↗
Development of large size finished porous tungsten ionizers final report
Large size porous tungsten emitter plates prepared in powder metallurgy and chemical processes
EMITTER↗
Radio astronomy
Radio astronomy - millimeter and microwave techniques and observations
MILLIMETER WAVE↗
Preliminary Investigation of the Satellite Gravitational Red Shift Experiment
The work performed under this contract involved study, design, and construction of experimental equipment to perform a short-term measurement of the gravitational red shift. In the system designed, phase comparison techniques are employed so that the time interval required to obtain a single measurement for one altitude is of the order of one minute. An elliptical orbit was chosen to permit measurement of frequency shift as a function of altitude. One particularly attractive orbit is that having a 12-hour orbiting period (perigee, 270 miles, apogee 24,800 miles). This orbit, shown in Fig. 1, allows continuous measurements to be made over an 11-hour interval during which time the altitude is varying greatly. Measurements can not be made for the succeeding 14 hours. Since the variation of frequency difference with altitude is of greatest interest, a fixed offset or a slow drift between the oscillator on the ground and. the oscillator in the satellite will not invalidate the measurements.
Zacharias, J. R.↗