Average and unusual locations of the earth's magnetopause and bow shock
Average and unusual locations of magnetopause and bow shock positions observed by IMP spacecraft
Fairfield, D. H.↗
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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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Spectral-averaging error reduction in low-resolution spectroradiometry
Fourier transformation compensation for spectral averaging error reduction in low resolution spectroradiometry
Buchele, D. R.↗
Average energies of ground and singly and doubly excited configurations in highly ionized atoms - Electron numbers N equals 3 to N equals 20
Average energies of ground and singly and doubly excited configurations in highly ionized atoms for electron numbers N equals 3 to N equals 20
Kastner, S. O.↗
Methods of averages expansions for artificial satellite applications
Formulas derived for averaged potential in artificial satellite theory
Liu, A.↗
Certain comments on the application of the method of averaging to the study of the rotational motions of a triaxial rigid body
Averaging technique applied to variational equations describing rotational motions of rigid triaxial body in elliptical orbit
Liu, J. J. F.↗
Averaging method for the solution of nonlinear differential equations with periodic nonharmonic solutions
Averaging technique using Jacobi elliptic functions for solving nonlinear differential equations with periodic nonharmonic solutions
Cap, F. F.↗
Low cost, multichannel peak acceleration selector and averager for sine vibration testing
Low cost multichannel peak/average sine vibration control system with acceleration selector and averager
Woodbury, R. C.↗
Average energies of ground, singly, and doubly excited configurations in highly ionized atoms, for electron numbers N equals 3 to N equals 46 and atomic numbers Z equals 6 to Z equals 92
Average energies of ground and excited configurations in highly ionized atoms, using orthogonalized screened hydrogenic radial functions
Kastner, S. O.↗
Averaged pulse-shape measurements of radar sea return at near-vertical incidence
Airborne radar sea return averaged pulse shape measurements over various water surfaces, noting clear distinction between specular and scattered reflection components
Levanon, N.↗
Magnetic field measurements by Pioneer 7. 1: Hourly averages of the field elements from 17 August 1966 to 29 October 1967 (Bartel's Solar Rotation 1820 to 1836)
The magnetic observations of Pioneer 7, located in the aftward portion of the disturbed solar plasma caused by interaction with the geomagnetic field, are summarized in graphical form. Hourly averages of the magnetic field elements for Bartel's solar rotation number are shown for each month from August 1966 to October 1967.
Ness, N. F.↗
Magnetic field measurements by Pioneer 6. 1: Hourly averages of the field elements from 17 December 1965 to 5 September 1967 (Bartels solar rotation 1811 to 1834)
Magnetic field data obtained on Pioneer 6 flights are presented in graph form as hourly averages. The spacecraft and magnetic field detector are described. The standard data analysis procedures are also given.
Ness, N. F.↗
Average daily variations in the magnetic field as observed by ATS-5
Hourly averages of the magnetic field components are determined and analyzed using the measurements, by the magnetic field monitor (MFM) aboard the ATS-5 satellite. The data covering the time period of September 1969 through September 1971 are sorted and analyzed for various Kp values, geomagnetic latitude of the subsolar point, and local time. Local time variations are harmonically analyzed, and amplitudes and phases are given up to the fourth harmonic.
Skillman, T. L.↗
Average heat-transfer characteristics of a row of circular air jets impinging on a concave surface
A study of the average heat-transfer characteristics of air jets impinging on the concave side of a right-circular semicylinder is reported. Results from existing correlating are compared with each other and with experimental heat-transfer data for a row of circular jets. Two correlations available in the literature are recommended for use in designing cooled turbine vanes and blades.
Livingood, J. N. B.↗
Average evoked potential correlates of two-flash perceptual discrimination in cats.
Average evoked potentials (AEPs) were recorded from the optic tract, lateral geniculate nucleus, and visual cortex of cats trained to discriminate between two successive flashes of light at various interflash intervals (IFI) and a single flash. The percent of correct responses to two-flash stimuli decreased sharply as IFI decreased from 100 to 20 msec. This behavioral response decrement was paralleled by a progressive overlapping of the AEPs to the two flashes and at 20 msec the AEPs resembled those to a single flash at all levels of the visual pathways. Implications for the coding of the information relevant to the discrimination of two flashes are discussed.
Peck, C. K.↗
Measurements of ultrasonic velocities using a digital averaging technique.
A new pulse-echo technique using real-time digital averaging is described for measuring the phase velocity in solids up to 50 MHz. The technique can measure the transit time between any two echoes to an absolute accuracy of 0.1 nsec and measure small changes in transit time to a sensitivity of 20 psec. Experimental examples are given based upon ultrasonic velocity measurements in a single crystal superconductor.
Lacy, L. L.↗
Average thermal characteristics of solar wind electrons
Average solar wind electron properties based on a 1 year Vela 4 data sample-from May 1967 to May 1968 are presented. Frequency distributions of electron-to-ion temperature ratio, electron thermal anisotropy, and thermal energy flux are presented. The resulting evidence concerning heat transport in the solar wind is discussed.
Montgomery, M. D.↗
The turbulent mean-flow, Reynolds-stress, and heat flux equations in mass-averaged dependent variables
The time-dependent, turbulent mean-flow, Reynolds stress, and heat flux equations in mass-averaged dependent variables are presented. These equations are given in conservative form for both generalized orthogonal and axisymmetric coordinates. For the case of small viscosity and thermal conductivity fluctuations, these equations are considerably simpler than the general Reynolds system of dependent variables for a compressible fluid and permit a more direct extension of low speed turbulence modeling to computer codes describing high speed turbulence fields.
Rubesin, M. W.↗
An empirical model for average F-layer scintillation at VHF/UHF.
An empirical approach to modeling the electron-density irregularities in the F layer that are primarily responsible for amplitude scintillation of VHF/UHF signals has been devised and tested. An irregularity model was postulated as a function of geomagnetic latitude, local time of day, season, and sunspot number. The primary parameters of the irregularities that were postulated were their strength and transverse scale-size. The irregularities were assumed to be aligned along the geomagnetic field, and their axial ratio was taken as constant, as were the height and thickness of the irregular layer. The model is offered as a tool for VHF/UHF communication-systems planning, to the extent that the average value of scintillation in a specified circumstance is of engineering value.
Fremouw, E. J.↗