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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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Short term frequency stability measurements of crystal controlled X-band source - spectral measurements by oscillator and harmonic generator in vibrational environment
Nuclear vibrational-rotational energy levels of diatomic potential curves, from variation calculation upon harmonic oscillator basis set
Iterative procedure for solving Rayleigh- Schroedinger perturbation equations applied to harmonic oscillator and H atom in electric field
Transition probabilities for collinear collision of particle with harmonic oscillator, noting reasons for discrepancy in Jackson and Mott form
Inelastic scattering cross sections calculated, comparing results for various nuclear states expressed as Wood-Saxon radial and harmonic oscillator functions
Propylene imine IR and Raman spectra, calculating thermodynamic functions based on rigid rotator harmonic oscillator model
Coulomb, Gaussian and harmonic oscillator potentials for particle pairs in three body system, using S wave expansion
Linear physical chains with Sturm-Liouville characteristic polynomials used for natural frequency determination of coupled harmonic oscillators or electrical analog
Morse eigenfunctions for variational calculation of diatomic molecules vibrational-rotational energy level analysis, showing better convergence than harmonic oscillator basis
Basis functions with harmonic oscillator radial dependence in Hartree-Fock calculations for light deformed nuclei
Coupled simple harmonic oscillators with almost degenerate energy levels, comparing partitioning perturbation techniques with Rayleigh- Schroedinger approach
Three body problem periodic solutions, considering near equilibrium conservative Hamiltonian system consisting of two harmonic oscillators with rationally related frequencies
Investigating short-range behavior of wave function by comparing projected Hartree-Fock spectra using basis functions having harmonic oscillator and Wood-Saxon radial dependence
Human physiochemistry, thermoregulation, and harmonic oscillation of blood glucose levels
Equations of motion for rotating gravity gradiometer, developed for forced harmonic oscillator model
Projected Hartree-Fock energy spectra using basis wave functions with harmonic oscillator and Wood-Saxon radial dependence
Theoretical work designed to bridge the gap between celestial mechanics and the motion of charged particles in magnetic fields is presented. Attempts are made to devise a simple uninvolved method to solve adiabatic invariant motion problems. The method is illustrated by solving a problem involving the motion of a slowly perturbed harmonic oscillator.
A heuristic description is given for a simple harmonic oscillator as a basis for a model of anharmonicity. A formalism is applied in the process, which applies to complex excitation fields involving particle clusters and also facilitates a description of nonequilibrium multibody configurations by classical methods. The heuristic description is based on Streit's results (1965) and is free of linearization requirements in most physically interesting situations.