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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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At least 217 records · Page 12

All sources NASA NTRS DOE OSTI

NASA NTRS1969

Eigenvalues and eigenvectors of symmetric matrices, case 320

Eigenvalues and eigenvectors of symmetric matrices using FORTRAN 4 subroutines

Vandergraft, J. S.↗

NASA NTRS1968

Molecular development of organic matrices capable of mineralization

Molecular mechanisms leading to mineralization of organic tissues, noting role of protein and glycoprotein matrices

Degens, E. T.↗

NASA NTRS1969

The effects of multidimensional flow through porous matrices in mass transfer cooling.

Effects of multidimensional flow through porous matrices in mass transfer cooling, analyzing one dimensional model for blunt axisymmetric surfaces

Del Casal, E. P.↗

NASA NTRS1969

The Crout reduction for sparse matrices.

Algorithm minimizing nonzero elements during Crout reduction of sparse matrices

Tewarson, R. P.↗

NASA NTRS1969

First- and second-order density matrices of symmetry-projected single-determinant wavefunctions.

Density matrices of symmetry projected single determinant wave functions for finite groups, considering many particle system

Harriman, J. E.↗

NASA NTRS1970

Generalized Rayleigh methods with applications to finding eigenvalues of large matrices

Generalized Rayleigh quotients for calculating eigenvalues and eigenvectors of large matrices

Vandergraft, J. S.↗

NASA NTRS1969

An empirical technique for computing navigation convariance matrices and the application of the technique to post Apollo 8 Lunar Orbit mission planning. Project Apollo

Empirical technique for computing navigation covariance matrices and applications to post Apollo 8 lunar orbit mission planning

Williamson, J. B.↗

NASA NTRS1968

Partial derivatives of matrices representing rigid body rotations

Applying method for computing partial derivatives of matrices representing rigid body rotations to formulation of RTCC processor for lunar landing mission

Cockrell, B. F.↗

NASA NTRS1964

The concept of generalized inversion of arbitrary complex matrices

Generalized inversion of arbitrary complex matrices

Decell, H. P., Jr.↗

NASA NTRS1970

Triangular decomposition as an aid in determining eigenvalues of large-order banded symmetric matrices

Triangular decomposition as aid in determining eigenvalues of large-order banded symmetric matrices

Puccinelli, E. F.↗

NASA NTRS1970

Methods for the direct calculation of reduced density matrices

Methods for direct calculation of reduced density matrices in formulating atomic and molecular quantum mechanics

Simons, J. P.↗

NASA NTRS1970

A perturbation theory in terms of reduced matrices

Perturbation theory for reduced density matrices

Harriman, J. E.↗

NASA NTRS1970

Kronecker matrices, computer implementation, and generalized spectra

Closed product form and simplified algorithm for efficient operation of generalized Kronecker matrices, considering role in spectral analysis

Andrews, H. C.↗

NASA NTRS1970

Statistical analysis of transition probability matrices in the strong coupled rotational excitation problem

Strong coupled rotational excitation problem in atom-diatomic molecule scattering system, discussing transition probability matrices statistical analysis

Bernstein, R. B.↗

NASA NTRS1970