Search NASA⌕ Search

SEARCH · Search NASA

Results for “CHARTS - STRESSES”

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.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 541 records · Page 30

The World Magnetic Survey

The mathematical and graphical description of the earth's main field has been, and is, a "data limited" problem. The World Magnetic Survey (WMS) is an endeavor to minimize this limitation by rapidly and comprehensively blanketing the earth with magnetic field measurements. Satellite surveys, which will play a key role in the W MS, are the principal topic of this paper. Existing magnetic field descriptions, the expected results from new surveys, and the methods of obtaining these results with the POGO satellite are emphasized. It is anticipated on the basis of extrapolation from Vanguard 3 results and other considerations that a factor of 10 improvement will be obtained. This means that the average errors of 1 to 3 percent now present in field charts and spherical harmonic descriptions should be reduced to 0.1 to 0.3 percent as a result of the survey.

MATHEMATICS↗

Extensometer automatically measures elongation in elastomers

Extensometer, with a calibrated shaft, measures the elongation of elastomers and automatically records this distance on a chart. It is adaptable to almost any tensile testing machine and is fabricated at a relatively low cost.

Hooper, C. D.↗

Apparatus enables automatic microanalysis of body fluids

Apparatus will automatically and quantitatively determine body fluid constituents which are amenable to analysis by fluorometry or colorimetry. The results of the tests are displayed as percentages of full scale deflection on a strip-chart recorder. The apparatus can also be adapted for microanalysis of various other fluids.

Soffen, G. A.↗

Aerospace bibliography, third edition

This third edition bibliography lists books and teaching aids related to aeronautics and space. Aeronautics titles are limited to aerospace-related research subjects, and books on astronomy to those directly related to space exploration. Also listed are pertinent references like pamphlets, films, film strips, booklets, charts, pictures, periodicals, and sources of information on specific space subjects available from aerospace industry companies. Reading levels for each document are indicated according to primary, intermediate, upper elementary, secondary, and adult or college.

SPACE EXPLORATION↗

Test and inspection for process control of monolithic circuits

Report details the test and inspection procedures for the mass production of high reliability integrated circuits. It covers configuration control, basic fundamentals of quality control, control charts, wafer process evaluation, general process evaluation, evaluation score system, and diffusion evaluation.

Spangenberg, E.↗

Graphic visualization of program performance aids management review

Chart technique /PERTREE/ which displays the essential status elements of a PERT system in a vertical flow array, of high graphic quality, enables visual review by management of program performance. Since the display is versatile, it can accommodate any aspect of the program which the presenter wishes to accent.

Eisenhart, G. N.↗

Apollo display system

Apollo display system permitting display of printed information and charts of real time data on cathode ray tube

Real time↗