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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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Neutron production cross sections prediction at proton bombarding energies below 50 Mev and above threshold for multiple nucleon emission
Partial molal entropies of doubly ionized aqueous Zn, Cd and mercurous and mercuric ions calculated, using literature data
Ag, In and Sb core excitations caused by inelastic scattering of alpha particles
Mass spectrometric measurements of atmospheric distribution of helium, nitrogen, oxygen and nitrogen oxide ions to 430 km altitude
Electron spin resonance spectrometer with superconducting magnets gives spectrum of dysprosium and samarium ions in calcium ferride
Oscillator strengths and autoionization lifetime of aluminum I doublet measured in shock tube
He-He ground state and first excited state potentials obtained from differential scattering cross sections
Charge exchange cross section measurement for incident ion energies of N, carbon dioxide and Ar beams
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Recent calculations predict a super-thermal-conductivity of ~2000 Wm -1 K -1 , comparable to that of diamond, in cubic boron arsenide (BAs) crystals, which may offer inexpensive insulators with super-thermal-conductivity for microelectronic device applications. We have synthesized and characterized here single crystals of BAs with a zinc blende cubic structure and lattice parameters of a = 4.7830(7) Å. A relatively high thermal conductivity of ~200 Wm -1 K -1 is obtained, close to those of best non-carbon crystal insulators, such as SiC, although still an order of magnitude smaller than the value predicted. Based on our XPS, X-ray single crystal diffraction, and Raman scattering results, steps to achieve the predicted super-thermal conductivity in BAs are proposed.
Quantum mechanical potential energy curves for lower excited states of helium 2 and hydrogen 2
Neutron spectra calculations from pulse height due to neutron interactions with protons and alpha particles in silicon charged particle detector
Near-UV bands of magnesium oxide photographed with concave grating spectrograph, using controlled atmosphere arc source
Forbidden absorption bands of carbon monoxide in vacuum UV region, noting rotational and vibrational constants and perturbations
Atmospheric temperature profile to 30 km determined by balloon-borne grating spectrometer of radiance of earth between 2100 and 2700 reciprocal cm
Far IR absorption spectra of chromium and titanium ions in aluminum oxide crystal, indicating Jahn-Teller effect reduction of trigonal field and spin-orbit coupling
Magnetic field induced hyperfine structure in mono- and divalent iron ions in magnesium and calcium oxide, showing evidence of paramagnetic resonance
Electromagnetic interactions in hyperfine structure of vibrational and rotational states in rubidium and potassium /isotopes/ fluorides, using electric resonance method