Tracking systems, their mathematical models and their errors. Part II - Least squares treatment
Mathematical models for effect of tracking systems on RMS errors in spacecraft position and velocity - least squares method
ROOT-MEAN-SQUARE ERROR↗
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Results for “MATHEMATICS - MATRICES”
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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Mathematical computer programs - Compilation
Mathematical programs and programming techniques for digital computer operations
DIGITAL COMPUTER↗
Quantification of subjectively determined data in the formulation and utilization of mathematical models, part II
Use of subjectively determined data in decision making functions, and mathematical models for estimating run-out costs
COST ESTIMATE↗
Space station mission simulation mathematical model Summary report
Space station mission simulation computerized mathematical model for analyzing and implementing MORL system or similar programs
MANNED ORBITAL RESEARCH LABORATORY /MORL/↗
Mathematical advances in the theory of one dimensional flow
Mathematical advances in theory of one-dimensional flow
ONE-DIMENSIONAL FLOW↗
Synthesis and identification of mathematical models for the discrete control behavior of human operators
Synthesis and identification of mathematical models which characterize discrete control behavior of human operators
OPERATOR↗
Experimental verification of gamma ray atmospheric density sensor mathematical model predictions
Experimental verification of mathematical model performance predictions for gamma ray atmospheric density sensors
ATMOSPHERIC DENSITY↗
Space Mathematics, Proceedings of a Summer Seminar, Cornell university, Ithaca, N.Y., JULY 1-August 9, 1963. Part 1.
Space mathematics - Seminar, Cornell University, July-August 1963, Part 2
CONFERENCE↗
Space Mathematics, Proceedings of a Summer Seminar, Cornell University, Ithaca, N.Y., JULY 1-August 9, 1963. Part 1.
Space mathematics - Seminar, Cornell University, July-August 1963, Part 1
MATHEMATICS↗
Space Mathematics, Proceedings of a Summer Seminar, Cornell University, Ithaca, N.Y., JULY 1-August 9, 1963. Part 3.
Space mathematics - Seminar, Cornell University, July-August 1963, Part 3
MATHEMATICS↗
Mathematical models for loss measurements in thin permalloy films with ramp drives.
Mathematical models for loss measurements in thin Permalloy films with ramp drives
RAMP↗
A mathematical model of random wave phenomena in hypergolic propellant combustion.
Physical and chemical conditions in rocket combustion chamber during starting transients and steady operation described by mathematical model intended for parametric studies
COMBUSTION CHAMBER↗
A mathematical model for the study of slosh effects on rendezvous dynamics.
Mathematical model for studying liquid slosh effects on rendezvous dynamics by incorporating sloshing dynamics into vehicle motion equation
MATHEMATICAL MODEL↗
A mathematical model for the temperature effects on circadian rhythms.
Mathematical model for temperature effects on circadian rhythms
TEMPERATURE EFFECTS↗
Incorporation of measured photosynthetic rate in a mathematical model for calculation of non-structural saccharide concentration
A simple mathematical model for calculating the concentration of mobile carbon skeletons in the shoot of soya bean plants [Glycine max (L.) Merrill cv. Ransom] was built to examine the suitability of measured net photosynthetic rates (PN) for calculation of saccharide flux into the plant. The results suggest that either measurement of instantaneous PN overestimated saccharide influx or respiration rates utilized in the model were underestimated. If neither of these is the case, end-product inhibition of photosynthesis or waste respiration through the alternative pathway should be included in modelling of CH2O influx or efflux; and even if either of these is the case, the model output at a low coefficient of leaf activity indicates that PN still may be controlled by either end-product inhibition or alternative respiration.
NASA Program CELSS↗
Mathematical modelling of the human cardiovascular system in the presence of stenosis
This paper reports a theoretical study on the distribution of blood flow in the human cardiovascular system when one or more blood vessels are affected by stenosis. The analysis employs a mathematical model of the entire system based on the finite element method. The arterial-venous network is represented by a large number of interconnected segments in the model. Values for the model parameters are based upon the published data on the physiological and rheological properties of blood. Computational results show how blood flow through various parts of the cardiovascular system is affected by stenosis in different blood vessels. No significant changes in the flow parameters of the cardiovascular system were found to occur when the reduction in the lumen diameter of the stenosed vessels was less than 65%.
NASA Program Data Analysis↗