Sequence of diffuse plasma resonances observed on Alouette 2 ionograms
Topic: NASA Technical Reports Server (NTRS)
Laser beam scintillation and log-amplitude variance evaluation for wavelengths on digital computer
Topic: NASA Technical Reports Server (NTRS)
Analytical and experimental study of limitations in using small scale models for determining spacecraft thermal behavior
Topic: NASA Technical Reports Server (NTRS)
Launch window, flight performance, and recovery procedures for biosatellite
Topic: NASA Technical Reports Server (NTRS)
Fatigue resistant shear pin with hollow shaft and two plugs
Topic: NASA Technical Reports Server (NTRS)
Growth of silicon dioxide on a silicon carbide crystal ensures proper orientation of photoresist masks on the crystals used for semiconductor devices. The crystal is heated in a water vapor-saturated gas to delineate p-n junctions that intersect the crystal surface.
Topic: NASA Technical Reports Server (NTRS)
Electron-hydrogen ionization considered from point of nonadiabatic theory
Topic: NASA Technical Reports Server (NTRS)
Topic: NASA Technical Reports Server (NTRS)
Topic: NASA Technical Reports Server (NTRS)
Topic: NASA Technical Reports Server (NTRS)
Inserting a splitter plate in the subsonic diffuser caused a pressure-recovery loss of about 1 percent for an inlet with a long nearly constant-area throat section. The loss was due to the increased surface area. Another inlet, which had a comparatively rapid area increase immediately after the throat, experienced pressure-recovery losses of 5 and 6 percent at Mach numbers of 1.8 and 2.0, respectively, and about 1 percent at Mach 1.5.
Topic: NASA Technical Reports Server (NTRS)
Topic: NASA Technical Reports Server (NTRS)
Topic: NASA Technical Reports Server (NTRS)
Radiation measurements of emission from Venus at 35 Gc, 70 Gc, and 94 Gc, using 16 foot antenna system and infrared bandwidth radiometer
Topic: NASA Technical Reports Server (NTRS)
Impact acceleration and landing system characteristics of Apollo spacecraft command module configurations with deployed heat shield
Topic: NASA Technical Reports Server (NTRS)
Effect of gold plating on soldered connections
Topic: NASA Technical Reports Server (NTRS)
Tubular tee is intersected at its junction by a reflecting/transmitting mirror angled to provide two images of an object for simultaneous photographing from two positions. This method is used when space and focal conditions are limited.
Topic: NASA Technical Reports Server (NTRS)
Interplanetary trajectory targeting technique with application to 1975 Venus flyby mission
Topic: NASA Technical Reports Server (NTRS)
Topic: NASA Technical Reports Server (NTRS)
Foldable conduit capable of springing back as self erecting structural member
Topic: NASA Technical Reports Server (NTRS)
Fluid transferring system design for purging toxic, corrosive, or noxious fluids and fumes from materials handling equipment for cleansing and accident prevention
Topic: NASA Technical Reports Server (NTRS)
Description of portable milling tool for milling tube or pipe ends to desired shape and thickness
Topic: NASA Technical Reports Server (NTRS)
Topic: NASA Technical Reports Server (NTRS)
To join web straps used to hoist heavy loads, a novel buckle permits two straps to be quickly joined and held by the combined forces of strap load tension and friction.
Topic: NASA Technical Reports Server (NTRS)
Here, values for tension, compression edgewise of laminations, and transverse flatwise of laminations are given for Micarta made with various kinds of sheet material. The corresponding values for white oak are given for comparison. It was found by destructive and service tests that Micarta made with a good grade of cotton duck will give satisfactory service with most designs. In propellers having detachable blades, it is desirable that the root of the blade be of a small cross section to...
Topic: NASA Technical Reports Server (NTRS)
Spring-loaded probe makes a reliable electrical contact by producing a circular wiping motion at the tip when inserted into a mating socket.
Topic: NASA Technical Reports Server (NTRS)
To measure vacuum pressures in the range of 5 times 10 to the minus 7 to 5 times 10 to the minus 16, a semiconductor resistor composed of sintered zinc oxide is used. Through the effect of surface absorbed gases on the resistance of the semiconductor material, very low pressures are measured.
Topic: NASA Technical Reports Server (NTRS)
Mathematical model is formulated for an air pad which is capable of lifting a structure to a height of 0.125 inch. Design is superior to conventional air cushion devices because it eliminates flutter, vibration, heaving, and pitching.
Topic: NASA Technical Reports Server (NTRS)
Moire tester detects small variations in flat conductor cable spacing by a quick, visual inspection. This device compares the cable to be tested with the negative of a very precise standard cable. The moire, consisting of bands of light and dark zones and its irregularities, can be interpreted as errors in spacing.
Topic: NASA Technical Reports Server (NTRS)
General mathematical expression found for energy storage shows that for linear, passive networks there is a minimum possible energy storage corresponding to a prescribed impedance. The electromagnetic energy storage is determined at different excitation frequencies through analysis of the networks terminal and reactance characteristics.
Topic: NASA Technical Reports Server (NTRS)
Setting up an artificial situation using photographs of lunar-type terrain on a dual TV-type projection system determines the effectiveness of stereo TV presentations in allowing an operator to remotely control an extra-terrestrial vehicle.
Topic: NASA Technical Reports Server (NTRS)
New polymeric material exhibits excellent physical shock protection, high electrical resistance, and thermal conductivity. It is especially useful for electronic circuitry, such as subminiaturization of components and modular construction of circuits.
Topic: NASA Technical Reports Server (NTRS)
New method replaces flowmeter approach with readily available burst diaphragm leak detector assembly mounted to all drain ports. This allows simultaneous leak detection of all flange seals under operating conditions.
Topic: NASA Technical Reports Server (NTRS)
Torque driven disconnect maintains connection on a gas supply line until desired parting occurs at a remote location. It consists of a helical plastic tube with a disconnect coupling fitted for an interference condition slip joint, and a rotationally constrained support connected to a gas source.
Topic: NASA Technical Reports Server (NTRS)
Graphic method of determining rocket attitudes by plotting data obtained by fluxgate magnetometers and solar aspect sensors utilizes polar coordinates. Polar graph paper is used to represent either the horizon system of altitude and azimuth or the celestial system of declination and right ascensions.
Topic: NASA Technical Reports Server (NTRS)
Prototype of a conceptual boron fiber-reinforced tubing meets requirements for lightweight structural members subjected to high shock loads and bending stresses.
Topic: NASA Technical Reports Server (NTRS)
Fine tuning acquisition and tracking interferometer radar system uses a first antenna array of at least three receiving antennas. Array includes a reference antenna, a coarse tuning antenna, and a fine tuning antenna aligned on a receiving axis. Short range rendezvous system provides increased position accuracy.
Topic: NASA Technical Reports Server (NTRS)
Scan-in scan-out flying spot scanning system recognizes three different levels of transmissivity within a frame. It selectively acts on these levels either to intensify the illumination or to extend the duration of the illuminating spot to any picture element. Thus it improves the ratio of signal to tube noise in the cameras output.
Topic: NASA Technical Reports Server (NTRS)
Split-half cover eliminates the surface marring and dirt penetration problems previously encountered during handling and cable assembly. Metal retaining ring slips over the two plastic halves to hold them in place.
Topic: NASA Technical Reports Server (NTRS)
Use of a double-focusing mass/charge spectrograph weighing less than 25 pounds is feasible for solar wind experiments. Instrument has a parallel-plate energy filter between the ion source and the double focusing units which alleviates the problem of designing an ion source of small energy spread.
Topic: NASA Technical Reports Server (NTRS)
Rotational effects on isothermal compressible flow across gas turbine sealing dam
Topic: NASA Technical Reports Server (NTRS)
Upgrading of electronic power supply for greater reliability in aerospace use
Topic: NASA Technical Reports Server (NTRS)
Theoretical feasibility of detecting laser radiation scattered from plasma
Topic: NASA Technical Reports Server (NTRS)
Multigroup calculations of resonance neutron capture in thick slab of depleted U-238
Topic: NASA Technical Reports Server (NTRS)
Physical, mechanical, and electrical properties of 55-Nitinol - nickel-titanium alloy
Topic: NASA Technical Reports Server (NTRS)
Laser optical simulation of spaceborne radio astronomy interferometer experiment
Topic: NASA Technical Reports Server (NTRS)
Hardware-software provisions for multiple precision floating point arithmetic
Topic: NASA Technical Reports Server (NTRS)
Electrothermal instabilities effects on Brayton and Rankine cycle magnetohydrodynamic space power generation systems
Topic: NASA Technical Reports Server (NTRS)
Design, calibration, and use of radiometers to measure spectral emission in ballistic range and shock tube experiments
Topic: NASA Technical Reports Server (NTRS)
Preflight press information on ESRO-1B launch and experiments for studying polar auroras and ionosphere
Topic: NASA Technical Reports Server (NTRS)
