SEARCH · Search NASA
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.
IBM 360/40 computer programs on preigniter rocket engine hydraulics and steady state performance of Apollo SM-LM RCS engine
This report describes the procedures for using digital computer programs for analyzing GERT networks which contain nodes of the EXCLUSIVE-OR type and branches which have both a probability and a time associated with them. The time associated with a branch can be a random variable. The program calculates the probability, the expected time and the variance in the time to go from each source node of the GERT network to each sink node. Programs have been written in FORTRAN II and FORTRAN IV and have been exercised on the IBM 1130, GE 225 and CDC 3400 computers. This report details the operating procedures for using these programs. Four examples are included to illustrate the important facets involved in using the programs. Special options included in the program are: (1) printout of all loops and paths associated with the network; and (2) deletion of loops that have a probability of occurrence less than a value specified by the user. The program described in this report has been submitted to COSMIC.
A method, using IBM cards and computer processing, automates examination grading and recording and permits use of computational problems. The student generates his own answers, and the instructor has much greater freedom in writing questions than is possible with multiple choice examinations.
Users manual on FORTRAN 4 COMPUTE program for IBM 360/67 time sharing system
AMTRAN software system developed for IBM 1130 computer
FORTRAN programmer manual for parametric study of manned life support systems, written for IBM 7094
Minitrack data reduction procedures, with IBM 360 computer program description
Logic minimization and description of IBM 7094 program MIN6
Acceleration of charged particles in strong DC magnetic field by electrostatic waves with spatially varying phase velocities integrated numerically on IBM 360/65
IBM 360-50 computer with I/O terminals to process PCM and analog data from Modular Auroral Probe series of sounding rockets on real time basis
IBM 1620 computer prepares tables to enable fast calculation of the first- and second-order rate constants from two half-lives and the corresponding initial concentrations, obtained from either one or two decay curves.
Retrieval information file relating to assigned frequencies for use on IBM 360 computer
On-line information and storage retrieval system for IBM 360/67 - users manual
Automatic Mathematical Translation language software for IBM 1130
Automatic spectral data reduction and analysis system consisting of densitometer, analog-digital converter and IBM 1800 process computer with magnetic disk memory
Computer program calculates actual and useable remaining propellant quantities as required in positive expulsion rocket engine propellant feed system. Program establishes relationship between helium system pressures and temperatures and propellant weight remaining in tanks. Program is written in FORTRAN 4 for IBM-360 computer.
Regeneration-1/Automated Sneak Program written in COBOL for IBM 360 computer
Automated Sneak Program written in COBOL for circuit analysis on IBM 360 computer