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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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At least 433 records · Page 24

All sources NASA NTRS DOE OSTI

NASA NTRSDate not supplied

P-band Antenna Array for NASA's Space Exploration Synthetic Aperture Radar (SESAR) Instrument

A dual-polarized, wideband, lightweight P-band (435 MHz) antenna element and array for spaceborne radar applications has been developed for NASA’s SESAR (Space Exploration Synthetic Aperture Radar) instrument for planetary synthetic aperture radar (SAR) applications. The antenna array is based on lightweight, low-profile antenna elements that form the building blocks of configurable “array panels” that can in turn be used to build larger arrays consisting of multiple panels. The element design combines a novel, mostly planar conductor antenna element geometry with a robust lightweight composite material construction.

Synthetic Aperture Radar↗

NASA NTRS1944

Resume of NACA stability and control tests of the Bell P-63 series airplane

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LOADS - TAIL SURFACES - BELL P-63A-1↗

NASA NTRS1942

Flight Measurements of the Rudder Control and Sideslip Characteristics of Four Vertical Tail Arrangements on the P-40 Series Airplanes

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RUDDER CONTROLS- CURTISS P-40E & F TAIL SURFACES, ↗

NASA NTRS1963

INTERPRETATION OF K SUB P INDEX AND M-REGION

Interpretation of k sub p index and m-region geomagnetic storms - magnetopause-solar wind interaction

GEOMAGNETIC STORM↗

NASA NTRS1963

INTERPRETATION OF K SUB P INDEX AND M-REGION GEOMAGNETIC STORMS

Interpretation of the k sub p index as a measure of the flucuations of the sum of plasma plus magnetic pressure acting on the outer boundary of the magnetosphere

GEOMAGNETIC STORM↗

NASA NTRS1964

Nuclear pulse enhancement in silicon p-n junction radiation detectors.

Observation of nuclear pulse height increases in silicon p-n junction radiation detectors

NUCLEAR RADIATION↗

NASA NTRS1964

Effects of electron irradiation on n on p silicon solar cells.

Electron irradiation effects upon physical, electrical, optical and thermal characteristics of n on p silicon solar cell

ELECTRON RADIATION↗

NASA NTRS1964

Finite-mass helium atoms. i - the 2 super 1 p state.

Variational wave functions of 2 P states of helium isoelectronic series, finding isotope shifts

WAVE FUNCTION↗

NASA NTRS1965

Finite-mass helium atoms. ii - 2 super 3 p state.

Two triplet P states of helium isoelectronic series investigated via 50-term variational wave functions with isotopic shift determinations

HELIUM ATOM↗

NASA NTRS1965

Gamma, electron, and proton radiation exposures of P-channel, enhancement, metal oxide semiconductor, field effect transistors

Gamma, electron, and proton radiation exposures of P-channel, enhancement, metal oxide semiconductor, and field effect transistors

FIELD EFFECT TRANSISTOR /FET/↗

NASA NTRS1965

The ''delta p'' approach from Nike combustion instability

Applicability of delta p approach to study of combustion instability in liquid and solid propellant rocket engines

STAGNATION FLOW↗

NASA NTRS1965

Properties of P-03 graphite

Thermal and mechanical properties of P-03 graphite evaluated for nuclear energy for rocket vehicle reactor hardware

HARDWARE↗

NASA NTRS1966

Spin-free quantum chemistry. IV - The p super n electron configuration.

P super n electron configuration for systems where spin-free Hamiltonian is applicable

GROUP THEORY↗

NASA NTRS1966

Pseudopotentials, the sizes of atoms and their s-p splittings.

Free-atomic pseudopotentials, sizes, s-p splittings and pseudowave functions

ENERGY LEVEL↗

NASA NTRS1966

Radiative lifetimes of ultraviolet multiplets in Si, P, S, O, Ne II, and Ar II.

Radiative lifetimes of UV multiplets in Si, P, S, O, Ne 2 and Ar 2 measured via phase shift method, correcting for transition cascading

ULTRAVIOLET SPECTROSCOPY↗

NASA NTRS1967

Laser Action from Terbium Trifluoroacetylacetonate in P-Dioxane and Acetonitrile at Room Temperature

Laser activity from terbium trifluoroacetylacetonate in p-dioxane and acetonitrile at room temperature

LASER OUTPUT↗

NASA NTRS1967

The catalytic activity of thermal polyanhydro- alpha-amino acids for the hydrolysis of p- nitrophenyl acetate - Catalysis by thermal polyamino acids.

Catalytic effect of thermal polyanhydro-alpha- amino acids on hydrolysis of p-nitrophenylacetate, noting role of histidine residues

CATALYTIC ACTIVITY↗

NASA NTRS1967

Status of lithium-doped p super plus /n solar cells.

Li doped p-plus/n solar cells optimum design and radiation resistance, noting concentration and room temperature annealing conditions

ANNEALING↗