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Results for “repeatability”

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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At least 865 records · Page 48

All sources NASA NTRS DOE OSTI

NASA NTRS1966

Gemini/Agena docking mechanism

The Gemini/Agena docking mechanisms utilize simple mechanical elements to provide a capability for initial engagement between two orbiting vehicles. The docking mechanisms then rigidize the attachment in a manner suitable for subsequent maneuver with the Agena propulsion system. Finally, the mechanisms provide a capability for disengaging and repeating the entire docking cycle. The mechanical elements used are found in daily terrestrial applications.

Agena docking↗

NASA NTRS1965

Space - Questions and answers.

Answers to oft-repeated questions about space program

SPACE PROGRAM↗

NASA NTRS1966

A study of cyclic plastic stresses at a notch root.

Cyclic plastic stresses at notch roots in aluminum alloy sheet specimens under constant- amplitude repeated tension and reversed loading

STRESS CONCENTRATION↗

NASA NTRS1965

The use of close Venusian passages during solar probe missions.

Repeated close Venus flybys and several close solar approaches incorporated in same mission

FLYBY MISSION↗

NASA NTRS1967

Sensing disks for slug-type calorimeters have higher temperature stability

Graphite sensing disk for slug-type radiation calorimeters exhibits better performance at high temperatures than copper and nickel disks. The graphite is heat-soaked to stabilize its emittance and the thermocouple is protected from the graphite so repeated temperature cycling does not change its sensitivity.

Source record↗

NASA NTRS1967

Continuous internal channels formed in aluminum fusion welds

Process produces continuous internal channel systems on a repeatable basis in 2014-T6 aluminum. Standard machining forms the initial channel, which is filled with tungsten carbide powder. TIG machine fusion welding completes formation of the channel. Chem-mill techniques enlarge it to the desired size.

Gault, J.↗

NASA NTRS1967

Algebraic Monte Carlo precedure reduces statistical analysis time and cost factors

Algebraic Monte Carlo procedure statistically analyzes performance parameters in large, complex systems. The individual effects of input variables can be isolated and individual input statistics can be changed without having to repeat the entire analysis.

Africano, R. C.↗

NASA NTRS1967

High energy forming facility

Watertight, high-explosive forming facility, 25 feet in diameter and 15 feet deep, withstands repeated explosions of 10 pounds of TNT equivalent. The shell is fabricated of high strength steel and allows various structural elements to deform or move elastically and independently while retaining structural integrity.

Ciurlionis, B.↗

NASA NTRS1966

Spinal reflexes during increased gravity

Spinal reflexes of cats and monkeys exposed to repeated stimulation of increased gravity

ANIMAL STUDY↗

NASA NTRS1967

Effect of vibration stimulus on the oxygen metabolism of the brain in animals with partially eliminated auditory and vestibular systems

Oxygen consumption of brain in rats with partially destroyed auditory system and vestibular apparatus during repeated vibration exposure

VESTIBULAR APPARATUS↗

NASA NTRS1966

The applications technology satellite.

Applications Technology Satellite /ATS/ EMPHASIZING communications facilities, repeater, antenna array, etc

APPLICATIONS TECHNOLOGY SATELLITE /ATS/↗

NASA NTRS1968

A Peak Generator for Gas Chromatography

Photoelectric peak generator for repeated reproduction of gas chromatogram peaks while data recording and integration variables are systematically studied

Johnson, R. D.↗

NASA NTRS1968

Communications system for the proposed orbiting data relay network.

Orbiting Data Relay Network communications system provides continuous wideband communication between ground and earth orbiting spacecraft via synchronous satellite repeaters

Durrani, S. H.↗

NASA NTRS1968

Gravitational inconsistency in the lunar theory - Confirmation by radio tracking.

Residuals in lunar ephemeris calculated from Brown theory confirmed by lunar probes radio tracking and reduced by repeated calculations, using LE 5

Cary, C. N.↗

NASA NTRS1968

Sub-optimal control of non-linear single input systems.

Suboptimal control generation for nonlinear single input systems by linear combination of states and repeated linearization of equations system

Aggarwal, J. K.↗

NASA NTRS1968

Narrow-band decasecond emissions from Jupiter.

Jupiter narrow band decasecond radio bursts, noting formation by rapidly repeated pulses

Riihimaa, J. J.↗

NASA NTRS1969

Tape reading fixture

Commercially available roller type desk pad provides an efficient and orderly manner of handling rolled paper tapes for proofreading. The fixture, which is modified to accept Flex-O-Writer or similar tapes and roll them in either direction, reduces the chance of damaging or soiling the tapes through repeated handling.

Source record↗

NASA NTRS1969

Precise gimballing mechanism

Prototype support mechanisms allow precise and repeatable gimballing of engines with a minimum of lost motion and backlash. It also minimizes the use of gears and reduces lubrication requirements for long time space operations of several years duration.

Ferrera, J. D.↗