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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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Channeling efficiency dependence on bending radius and thermal vibration amplitude of the model for the channeling of high-energy particles in straight and bent crystals implemented in Geant4
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Recursion relations for multi-gluon off-shell amplitudes on the light-front and Wilson lines
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Kaon distribution amplitude from lattice QCD and the flavor SU(3) symmetry
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Precision control in lattice calculation of x-dependent pion distribution amplitude
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Connecting physical resonant amplitudes and lattice QCD
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Amplitude analysis and the nature of the Z(3900)
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Tree-level gluon amplitudes on the celestial sphere
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Dispersive π K → π K and π π → K K ̄ amplitudes from scattering data, threshold parameters, and the lightest strange resonance κ or K 0 ∗ ( 700 )
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oreo: An R package for large amplitude oscillatory analysis
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Effects of Coherent versus Incoherent Illumination and Imaging Setup on Experimental Measurements of Scattering Amplitudes in Metamaterials
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Amplitude- and Phase-Resolved Nanospectral Imaging of Phonon Polaritons in Hexagonal Boron Nitride
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Agricultural fertilization significantly enhances amplitude of land-atmosphere CO2 exchange
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Numerical Convergence of Electromagnetic Responses with the Finite-Amplitude Method
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The effect of large amplitude motions on the transition frequency redshift in hydrogen bonded complexes: A physical picture
We describe the vibrational transitions of the donor unit in water dimer with an approach that is based on a three-dimensional local mode model. We perform a perturbative treatment of the intermolecular vibrational modes to improve the transition wavenumber of the hydrogen bonded OH-stretching transition. The model accurately predicts the transition wavenumbers of the vibrations in water dimer compared to experimental values and provides a physical picture that explains the redshift of the hydrogen bonded OH-oscillator. We find that it is unnecessary to include all six intermolecular modes in the vibrational model and that their effect can, to a good approximation, be computed using a potential energy surface calculated at a lower level electronic structure method than that used for the unperturbed model.
Large amplitude oscillation of magnetization in spin-torque oscillator stabilized by field-like torque
Oscillation frequency of spin torque oscillator with a perpendicularly magnetized free layer and an in-plane magnetized pinned layer is theoretically investigated by taking into account the field-like torque. It is shown that the field-like torque plays an important role in finding the balance between the energy supplied by the spin torque and the dissipation due to the damping, which results in a steady precession. The validity of the developed theory is confirmed by performing numerical simulations based on the Landau-Lifshitz-Gilbert equation.