Capacitance voltage measurements on N-type InAs MOS diodes
Capacitance voltage measurements on interface of pyrolytically deposited n-type silicon dioxide- InAs MOS diodes as function of admittance at room and 77 K temperatures
Dockerty, R. C.↗
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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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Measurements of the refraction and diffraction of a short N wave by a gas-filled soap bubble
Short N wave refraction and diffraction by gas- filled soap bubble, discussing measurements to explain peaking and rounding in sonic boom pressure signature
Blackstock, D. T.↗
Generalization of Lagrange's implicit function theorem to n-dimensions
Lagrange implicit functions generalization to n dimensions, developing inversion as power series
Feagin, T.↗
TRAPATT oscillations in a p-i-n avalanche diode
P-i-n avalanche diode trapped plasma avalanche triggered transit /TRAPATT/ oscillations characteristics and voltage waveform under square wave driving current, using computer program
Parker, D.↗
On classes of n-dimensional nonlinear mappings generalizing several types of matrices
Classes of n dimensional functions nonlinear matrix mapping, emphasizing block-Jacobi and block-Gauss-Seidel process convergence for continuous surjective M functions
Rheinboldt, W. C.↗
Computed and observed cyanide-radical spectra of three N stars in the infrared
N stars Y CVn, RY Dra and 19 Psc IR synthetic cyanide radical spectrum analysis, determining C 12/C 13 ratio
Fay, T. D., Jr.↗
On classes of n-dimensional nonlinear mappings generalizing several types of matrices
Function classes of n-dimensional nonlinear mappings generalizing matrices, including convergence for Jacobi and Gauss-Seidel process
Rheinboldt, W. C.↗
Redundancy optimization for series k-out-of-n systems
Redundancy optimization of series-parallel k-out-of-n systems for maximum reliability subject to multiple cost constraints
Bien, D. D.↗
Improved ohmic contacts to n-type GaP devices
Metal film ohmic contacts to n-type GaP devices operating at high ambient temperatures
Domenico, A. J.↗
N-heptane, carbon dioxide, and chlorotrifluoromethane droplet vaporization measurements at supercritical pressures
N-heptane, carbon dioxide and Freon 13 droplet vaporization measurements at supercritical pressure, comparing with film theory calculation
Borman, G. L.↗
Development of reverse biased p-n junction electron emission
A cold cathode emitter of hot electrons for use as a source of electrons in vacuum gauges and mass spectrometers was developed using standard Norton electroluminescent silicon carbide p-n diodes operated under reverse bias conditions. Continued development including variations in the geometry of these emitters was carried out such that emitters with an emission efficiency (emitted current/junction current) as high as 3 x 10-0.00001 were obtained. Pulse measurements of the diode characteristics were made and showed that higher efficiency can be attained under pulse conditions probably due to the resulting lower temperatures resulting from such operation.
Fowler, P.↗
Part specification solar cells, silicon N-on-P solderless low temperature operation for Jupiter missions
The requirements for 10 ohm cm N-ON-P, silicon solar cells, for use on solar panel assemblies for space flight applications are specified.
Payne, P. A.↗
Effects of n-dominance and group composition on task efficiency in laboratory triads.
Task-oriented triads were formed into various homogeneous and heterogeneous combinations according to their scores on the n-dominance personality trait of the Edwards Personal Preference Schedule. Five group categories were used. The group task required a consensus decision on each trial. High cooperation and interdependence were reinforced by partially restricting the communication network. Results showed heterogeneous groups significantly better at organizing their group communication processes. They consequently performed the task more efficiently than homogeneous triads.
Lampkin, E. C.↗
Influence of oxygen-vacancy complex /A center/ on piezoresistance of n-type silicon.
Changes in both magnitude and temperature dependence of the piezoresistance of electron-irradiated n-type silicon, induced by the latter's oxygen-vacancy complex (A center), are shown to be due to the fact that the presence of the A center causes the total conduction-band electron concentration to change with an applied stress. This change in electron concentration leads to an additional piezoresistance contribution that is expected to be important in certain many-valley semiconductors. This offers the possibility of tailoring the thermal variations of semiconductor mechanical sensors to more desirable values over limited temperature ranges.
Littlejohn, M. A.↗
Predicted trapped particle radiation levels for Tiros-N
Vehicle encountered electron and proton fluxes were calculated for a set of nominal TIROS-N trajectories with new computational methods and new electron environment models. Temporal variations in the electron data were considered and partially accounted for. Estimates of energetic solar proton fluxes are given for the lifetime of the satellite at selected integral energies from 10 to 100 MeV. Field strength calculations were performed with an extrapolated model on the basis of linear secular variation predictions. Orbital flux integration results are presented in graphical and tabular form.
Stassinopoulos, E. G.↗
The Mean Ozone Distribution from Several Series of Rocket Sounding to 52 Km at Latitudes from 58 Deg S to 64 Deg N
The results of 21 rocket flights of Arcas optical ozonesondes were combined to produce estimates of the mean ozone distribution and its variability; these estimates apply to a broad range of latitudes. The flights were launched from sites near the equator to 58 S and to 64 N, in the years from 1965 to 1971. The local-noon mean ozone densities in molecules/cubic centimeter are 7.0 to the 10th power at 50 km, 6.7 x 10 to the 11th power at 40 km, 3.1 x 10 to the 12th power at 30 km, and 3.1 x 10 to the 12th power at 20 km. The range of observed densities is about + or - 30 percent of the mean value at 50 km; + or 40 percent at 40 km; + or - 40 percent at 30 km; and +200 percent, -66 percent at 20 km. The variabilities in this set of observations are much smaller than those indicated by previous measurements.
Krueger, A. J.↗
Mission SL-3 (AS 207/CM 117/IMU 31) G and N error analysis (Skylab 3)
Data are presented on G and N system performance and operation for the CM. Data of measured CM IMU test data are included.
Helfant, S. B.↗
Suboptimal stochastic controller for an n-body spacecraft
The problem is studied of determining a stochastic optimal controller for an n-body spacecraft. The approach used in obtaining the stochastic controller involves the application, interpretation, and combination of advanced dynamical principles and the theoretical aspects of modern control theory. The stochastic controller obtained for a complicated model of a spacecraft uses sensor angular measurements associated with the base body to obtain smoothed estimates of the entire state vector, can be easily implemented, and enables system performance to be significantly improved.
Larson, V.↗