Circadian patterns of oxygen consumption in Peromyscus
Circadian patterns of deer mice oxygen consumption in constant dark and thermally neutral zone
Heusner, A. A.↗
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Results for “Patterning”
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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Airborne observations of auroral precipitation patterns
Auroral electron and proton precipitation patterns observed at Fort Churchill, discussing particle energies
Eather, R. H.↗
Effect of leakage and source inductances on the switching pattern of a magnetically coupled tunnel diode oscillator
Magnetically coupled tunnel diode oscillator with square loop core, calculating leakage and source inductances effect on switching pattern
Hester, D. L.↗
Sleep-wake activity patterns of a Macaca nemestrina monkey during nine days of weightlessness
Biosatellite 3 onboard camera time lapse photography of monkey sleep/wake activity patterns during weightlessness
Adey, W. R.↗
Synthesis of shaped-beam radiation patterns using the iterative sampling method
Shaped beam radiation patterns synthesis by iterative sampling method with line sources or uniformly spaced antenna arrays
Stutzman, W. L.↗
Far-field diffraction pattern for corner reflectors with complex reflection coefficients
Far field diffraction pattern of corner reflector for normally incident monochromatic light, considering polarization characteristics
Alley, C. O.↗
Recirculation patterns in confined laminar jet mixing
Recirculation patterns in coaxial steady laminar mixing of homogeneous jets in confined tube, solving Navier-Stokes equations
Lavan, Z.↗
High-resolution X-ray diffraction patterns of crystalline transfer RNA that show helical regions
High resolution X ray diffraction patterns of yeast phenylalanyl transfer RNA crystals, discussing double helical regional distribution characteristics
Kim, S. H.↗
Surface flow patterns and aerodynamic heating on space shuttle vehicles
Space shuttle vehicle models, calculating surface flow patterns and pressure and aerodynamic heating distributions for comparison with test data
Derose, C. E.↗
Lunar near-side tectonic patterns from Orbiter 4 photographs
Lunar near-side tectonic patterns including mare ridges, rills, ridges crater walls features within maria from Lunar Orbiter photographs
Brower, J. A.↗
Walsh functions in image processing, feature selection and pattern recognition
Walsh functions in image processing, rotational feature selection and pattern recognition, defining set of orthogonal transformations
Andrews, H. C.↗
Auroral precipitation patterns
Auroral electron and proton precipitation patterns, measuring airglow emissions
Eather, R. H.↗
Australasian tektite geographic pattern, crater and ray of origin, and theory of tektite events
Geographic distribution pattern of Australasian tektites, considering origin and crater theory of tektite events
Chapman, D. R.↗
Diurnal patterns in water and food intake and body weight changes in rats with hypothalamic lesions
Diurnal water and food intake and body weight changes pattern in rats with hypothalamic lesions
Case, B.↗
Swathing patterns of earth-sensing satellites and their control by orbit selection and modification
Circular sun synchronous earth satellites, investigating swathing patterns control by orbit selection and modification
King, J. C.↗
Pattern recognition systems and procedures
The objectives of the pattern recognition tasks are to develop (1) a man-machine interactive data processing system; and (2) procedures to determine effective features as a function of time for crops and soils. The signal analysis and dissemination equipment, SADE, is being developed as a man-machine interactive data processing system. SADE will provide imagery and multi-channel analog tape inputs for digitation and a color display of the data. SADE is an essential tool to aid in the investigation to determine useful features as a function of time for crops and soils. Four related studies are: (1) reliability of the multivariate Gaussian assumption; (2) usefulness of transforming features with regard to the classifier probability of error; (3) advantage of selecting quantizer parameters to minimize the classifier probability of error; and (4) advantage of using contextual data. The study of transformation of variables (features), especially those experimental studies which can be completed with the SADE system, will be done.
Nelson, G. D.↗
Near field antenna patterns of obstructed Cassegrainian telescopes
The near field antenna pattern of an obstructed optical transmitter, such as a Cassegrainian telescope, has been computed using the Fresnel approximation to the scalar diffraction integral. A number of cases have been considered. These include uniformly illuminated, obstructed circular apertures, and apertures coherently illuminated with a divergent gaussian beam wave. Other beam profiles that may be derived by energy redistribution of the laser beam have also been considered. The techniques used for the numerical evaluation of the Fresnel integral are discussed and results for the optical systems to be used on the High Altitude Aircraft Optical Communications Experiment are presented.
Webb, W. E.↗
Experimental surface flow patterns and flow-field phenomena of a delta-wing space-shuttle orbiter
Composite photographs of the surface flow and shadowgraphs of the shock wave pattern are presented that depict the hypersonic flow field of a typical delta wing space shuttle orbiter. Results from a wind tunnel test in air are given in side, oblique, and projected plan views for angles of attack from 0 to 60 deg. The tests were conducted at a Mach number of 7.4 and for Reynolds numbers based on body length of 6,000,000 and 9,000,000. The interrelationship is shown for the intersecting bow and wing leading edge waves with the surface flow for angles of attack for which: (1) the leading edge wave is attached, and (2) the leading edge wave is detached.
Cleary, J. W.↗