Approximations to the two-state impact- parameter treatment of heavy-particle collisions.
Adiabatic and distortion approximations to two state treatment of ground state H atoms collisions at low energies
Flannery, M. R.↗
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Multi-state impact-parameter treatment of hydrogen-helium excitation collisions.
Multistate impact parameter treatment of hydrogen-helium excitation collisions, considering distortion, back- and rotational-coupling and virtual transition sequence
Flannery, M. R.↗
Influence of high-temperature heat treatment on surface order and faceting of some Mo, W, Ta and Re crystal surfaces
High temperature heat treatment effects on Mo, W, Ta and Re crystal surface order and faceting observed by electron diffraction, noting contamination role
Barton, G.↗
Quasiequilibrium treatment of gas-solid reactions. I - Evaporation rates of volatile species formed in the reaction of O2 with W, Mo, and C
Quasi-equilibrium treatment of heterogeneous reactions applied to evaporation rate /desorption/ computation for volatile species formed in oxygen reactions with W, Mo and graphite
Batty, J. C.↗
Quasiequilibrium treatment of gas-solid reactions. II - Flash desorption of oxidation products from a tungsten surface
Quasi-equilibrium treatment of heterogeneous reactions applied to flash desorption data for oxygen reaction with tungsten surface, discussing species desorption dependence on adsorption temperature
Batty, J. C.↗
Inclusion of higher-state couplings in a multi- state impact-parameter treatment of heavy- particle collisions
Multistate impact parameter treatment of heavy particle collisions modified to include higher state couplings for electronic wave functions
Flannery, M. R.↗
Treatment of blueberries prior to freeze dehydration
Softening blueberry skin by treatment with weak solution of sodium hydroxide prior to freeze dehydration prevents tough, chewy skins upon rehydration.
Larson, R. W.↗
High-temperature strength of prealloyed-powder products increased by heat/pressure treatment
Heat treatment process involves heating products to a temperature above the solidus, and subsequently applying pressure at a temperature below the solidus. Technique can be modified to one step process involving simultaneous application if both high pressure and heat. Process is not limited to cobalt-base alloys.
Ashbrook, R. L.↗
Task 4 stage data and performance report for casing treatment investigations. Evaluation of range and distortion tolerance for high Mach number transonic fan stages, volume 1
Test description and results for high Mach number transonic fan stages to determine range and distortion tolerance for various rotor tip casing treatment configurations
Tesch, W. A.↗
Task 4 stage data and performance report for casing treatment investigations. Evaluation of range and distortion tolerance for high Mach number transonic fan stages, volume 2
Tabulations of blade element and circumferential distortion flow data in tests of high Mach number transonic fan stages with various rotor tip casing treatment configurations
Tesch, W. A.↗
Spectral emissivity of tantalum in the red and in the green, and the change in emissivity resulting from a change in surface structure induced by heat treatment
Ta spectral emissivity in red and green and relationship to surface structure change induced by heat treatment
Madjid, A. H.↗
A unified treatment of lunar theory and artificial satellite theory
Generalized von Zeipel treatment of lunar and artificial satellite theories, generating single canonical transformation by variable separation technique
Mersman, W. A.↗
Delineation of emergency surface decompression and treatment procedures for project Tektite aquanauts
Emergency surface decompression and treatment procedures for project Tektite aquanauts, determining safe interval and schedules for return to habitat on ocean floor
Edel, P. O.↗
Molecular collisions. XV - Classical limit of the generalized phase shift treatment of rotational excitation- Atom-rigid rotor
Rotationally inelastic molecular collisions in atom rigid rotor scattering, considering infinite order approximation of generalized phase shift treatment
Bernstein, R. B.↗
Metered oxygen supply aids treatment of domestic sewage
Microbiological fixed-bed process was developed in which supplementary oxygen required by microbial species is supplied by electrochemical device. Rate of addition of oxygen to waste treatment process is controlled to maintain aerobic metabolism and prevent anaerobic metabolisms which produce odorous or toxic products.
Weliky, N.↗
The effects of solution treatment on the mechanical properties of age-hardened A-286 bar stock at elevated and cryogenic temperature
The mechanical properties are presented of solution treated and age hardened A-286 corrosion resistant steel bar stock. Material solution treated at 899 C or 982 C, each followed by an age hardening treatment of 718 C, was evaluated. Test specimens manufactured from 1.50 inch (3.81 cm) diameter bar stock were tested at temperatures from +649 C to -253 C. The test data indicated excellent tensile, yield, elongation and reduction-in-area properties at all testing temperatures for both solution treated and aged materials. Cryogenic temperature notched tensile, impact, and shear tests indicated excellent notch strength, ductility, and shear values. There was very little difference in the mechanical properties of the two solution treated and aged materials. The only exception was that the 962 C solution treated and aged material had superior stress rupture properties at 649 C.
Montano, J. W.↗
Changes in some physical properties induced by vacuum heat treatment
A method is proposed for reducing or eliminating outgassing of materials by heat treating them in vacuum prior to use. This may be performed on the raw material prior to manufacturing and installation or after fabrication of parts. Processing of a fabricated part can be performed only on relatively small parts and on assemblies containing no components which are affected by the required temperatures and pressures. Processing conditions of temperature and time are dependent on the particular application and the materials involved. Silicone-coated fiber glass cloth was vacuum-heat treated for 100 hrs at 400 + or - 25 F at pressures of 0.001 torr or less. The materials were tested in terms of tensile strength and tear properties in both the smooth and several creased configurations. Data obtained on one side silicone coated fiber glass showed large reductions in these properties as a result of the vacuum-heat treatment. The problem was alleviated by coating both sides of the fiber glass.
Hultquist, A. E.↗
On optimizing the treatment of exchange perturbations
A method using the zeroth plus first order wave functions, obtained by optimizing the basic equation used in exchange perturbation treatments, is utilized in an attempt to determine the exact energy and wave function in the exchange process. Attempts to determine the first order perturbation solution by optimizing the sum of the first and second order energies were unsuccessful.
Hirschfelder, J. O.↗