Recovery of Viable Microorganisms from Solids. I - Model Systems
Solidification process for recovering viable microorganisms to aid spacecraft sterilization procedures
SOLIDIFICATION↗
SEARCH · Engineering Papers
Results for “Systems Modeling”
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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Binder model system to be used for determination of prepolymer functionality Quarterly report, 19 Nov. 1968 - 19 Feb. 1969
Solid rocket binders for determination of prepolymer function by viscometer method
Heller, J.↗
Apollo support equipment. Digital test command system models C14-264 through C14-268 - Maintenance handbook
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Apollo ground support equipment operation and service instructions, miniaturized data interleaving system, model C14-232 - Support manual
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Binder model system to be used for determination of prepolymer functionality Quarterly report, 19 Feb. - 19 May 1969
Method for recording viscosity data during esterification of prepolymers used as rocket binders
Heller, J.↗
Development and application of a system model for spacecraft sterilization Final report
Mathematical model for analyzing spacecraft sterilization requirements for planetary quarantine
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Generalized Propulsion System Model for NASA Manned Spacecraft Center, Houston, Texas Final Report
Digital computer program for studying transient performance of pressure fed rocket engines
Boehnlein, J. J.↗
Probabilistic systems modeling and cost/ performance methodologies for optimization of vehicle assignment. Volume 1 - Technical description Final report
Computerized probabilistic model for optimal cost assignment of launch vehicle programs to advanced space missions
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Probabilistic systems modeling and cost/ performance methodologies for optimization of vehicle assignment. Volume 2 - Programmer's manual, assignment and smoothing model Final report
Manual of computer program for probabilistic optimal launch vehicle assignment and budget smoothing model
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System model: Requirements and constraints
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Kerogen structures in recently-deposited algal mats at Laguna Mormona, Baja California: A model system for the determination of kerogen structures in ancient sediments
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Philip, R. P.↗
IFEMS, an Interactive Finite Element Modeling System Using a CAD/CAM System
A method of coupling a CAD/CAM system with a general purpose finite element mesh generator is described. The three computer programs which make up the interactive finite element graphics system are discussed.
Mckellip, S.↗
General aviation airplane fuel economy system model
The aerodynamic characteristics which affect the fuel consumption of general aviation aircraft are outlined. All data are presented in the form of graphs.
Sweet, L.↗
Systems modeling past, present, and future as viewed from a network modeling perspective
The general area of stochastic networks is discussed with emphasis on the graphical evaluation and review techniques (GERT). This is a procedure which combines the disciplines of flowgraph theory moment generating functions, and PERT to obtain the solution to stochastic problems.
Whitehouse, G. E.↗
Mobile tile glazing high density radiant heating system Model 1023/8. Preliminary manual and instruction manual
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Preliminary characterization of persisting circadian rhythms during space flight: Neurospora as a model system
The effects of the Spacelab environment on the circadian rhythms in microorganisms are investigated. Neurospora is chosen because of its well characterized circadian rhythm of growth. Growth rate, banding patterns, and circadian period and phase information are studied.
Sulzman, F. W.↗
A comprehensive system model for motion/space sickness. Preliminary results
A preliminary attempt to categorize and order the observed facts regarding motion sickness into a rational structure is discussed. An array of key facts, as assembled from the recent literature, consisting of a collection of motion space sickness observations which should be accounted for in the comprehensive model are given. A model structure which is responsive to the array of key facts, as well as to the other requirements of a working research tool (modularity, ease of use, conciseness, etc.) is also suggested.
Riedel, S. A.↗
ADAM: An Axisymmetric Duct Aeroacoustic Modeling system
An interconnected system of computer programs for analyzing the propagation and attenuation of sound in aeroengine ducts containing realistic compressible subsonic mean flows, ADAM was developed primarily for research directed towards the reduction of noise emitted from turbofan aircraft engines. The two basic components are a streamtube curvature program for determination of the mean flow, and a finite element code for solution of the acoustic propagation problem. The system, which has been specifically tailored for ease of use, is presently installed at NASA Langley Reseach Center on a Control Data Cyber 175 Computer under the NOS Operating system employing a Tektronix terminal for interactive graphics. The scope and organization of the ADAM system is described. A users guide, examples of input data, and results for selected cases are included.
Abrahamson, A. L.↗