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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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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.
Shadow constraint program computations of trajectories intersection with shadow cone for use in Centaur project
Blue clearings of Mars atmosphere as function of number of meteor showers intersecting Mars orbit at intervals of heliocentric longitude
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.
Studies of Latvian morphophonemics, metrics of Arabic poetry, and intersection of regular languages and languages generated by transformational grammars
Optimal one- and two-impulse orbital transfer maneuvers, considering shallowly intersecting coplanar orbits
Dissipation of magnetic fields at neutral lines in two-dimensional field with two intersecting shocks
Land recovery of launch vehicles, applying intersecting pressure vessel theory for shaping of tanks and hinged tail panels
Finite difference scheme from method of characteristics to investigate flow field and intersecting exhaust plumes from nozzles
Transmitter, radiating at a right angle to the spacecraft trajectory and intersecting the surface at a shallow angle, yields accurate radar maps of lunar or planetary surfaces. Earth based station receives the signal reflected from the planetary surface. Mapping coordinates and signal strength are produced by earth based transmitter.
Laser scribing eliminates microcracking at scribe line intersections, minimizes or eliminates preparation of scribe channels, and increases yield during the breaking process. Rapid overlapping of spots in the form of a line permits scribing speeds of 1.5 to 2.5 in./sec at 50 pulses/sec.
Electron temperature and density data obtained during Alouette satellite passage over middle latitude red arc, noting influence of intersecting magnetic field lines
Laminar heating in hypersonic vehicles interior corners, analyzing helium tunnel heat transfer data for various intersecting wedge corners
System measures intersection of line of sight and eye point of regard /EPR/ for a human operator in visual scanning system. Device measures two head to reference angles with EPR system and adds them with eye to head angles, yielding a dc signal proportional to picture plane coordinates.
Measurements of unsteady, rotary wing air loads and time derivatives for rotor blade intersecting completely rolled up vortex
Viscous slipstream flow downstream of triple shock wave intersection in supersonic diffuser air flow, using Pitot and static pressure probe measurements
Isotropic rib stiffened shell whose ribs intersect to form equilateral triangles has advantages of high twisting rigidity of construction and simplicity of triangular pattern.
Several aspects of the aerodynamics of rotor blade tip vortices are examined. Two particular categories are dealt with; (1) dynamic loads on a blade passing close to or intersecting a trailing vortex, and (2) the response of the trailing vortex core to changes in the flow. Results for both categories are in reasonable agreement with existing data, although lower pressure gradients were obtained than anticipated for category one. A correlation between trailing edge sweep angle at the tip and vortex core size was noted for category two.