Results 61 to 70 of about 444,209 (170)
Eye point-of-regard system [PDF]
, 1971 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 ...
Jex, H. R.
core +1 more source
Mechanical performance of bio‐based fiber reinforced polymer composites: A review
Polymer Composites, Volume 46, Issue S3, Page S9-S43, 10 October 2025.Applications of bio‐based fiber reinforced polymer composites in various sectors. Abstract Natural fiber‐reinforced polymeric composites (NFRCs) offer a sustainable solution at the intersection of environmental consciousness and materials engineering. These composites address plastic pollution and industrial material demands by utilizing natural fibers
Daksh Shelly +5 more
wiley +1 more source
A general solution to the hidden-line problem [PDF]
The requirements for computer-generated perspective projections of three dimensional objects has escalated. A general solution was developed. The theoretical solution to this problem is presented.
Hedgley, D. R., Jr.
core +1 more source
NASA patent abstracts bibliography: A continuing bibliography. Section 1: Abstracts (supplement 18) [PDF]
s are cited for 120 patents and patent applications for patents introduced into the NASA scientific system during the period of July 1980 through December 1980.
core +1 more source
System for indicating direction of intruder aircraft [PDF]
, 1973 A pilot warning indicator system consisting of a flashing beacon, a detector, and an indicating panel is described. The detector responds to radiant energy from another aircraft's beacon by energizing particular signal lamps positioned in the periphery ...
Story, A. W.
core +1 more source
, 2016 Sandwich panels are composites which consist of two thin laminate outer skins and lightweight (e.g., honeycomb) thick core structure. Owing to the core structure, such composites are distinguished by stiffness. Despite the thickness of the core, sandwich
Micha +7 more
semanticscholar +1 more source
Aerodynamic testing technique for twin fuselage models at hypersonic speeds [PDF]
A testing technique for obtaining the static aerodynamic characteristics of twin-fuselage configurations at hypersonic speeds by using a conventional single-balance installation has been evaluated.
Ashby, G. C., Jr.
core +1 more source
Geometric aspects of ground station/satellite communications [PDF]
Geometry aspects of communications between ground station and satellite in elliptical ...
Bourke, R. D.
core +1 more source
Sputtering Holes with Ion Beamlets [PDF]
, 1974 Ion beamlets of predetermined configurations are formed by shaped apertures in the screen grid of an ion thruster having a double grid accelerator system. A plate is placed downstream from the screen grid holes and attached to the accelerator grid.
Banks, B. A., Byers, D. C.
core +1 more source