Preferred orientation parameters for pyrolytic carbons.
Preferred orientation of pyrolytic carbons, noting relationships and equivalence of parameters
HIGH TEMPERATURE MATERIAL↗
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Indications of preferred orientation in recrystallized hot pressed MgO.
X ray transmission technique to study preferred orientation in recrystallized hot pressed MgO
De Wys, E. C.↗
Reversal of preference under progressive-ratio schedules by punishment.
Preference response reversal by electric shock punishment of pigeons under progressive ratio reinforcement schedules
Dardano, J. F.↗
Chemical vapor-deposition of tungsten emitters of /110/ preferred crystal orientation.
Preferred crystal orientations and vacuum work functions of planar tungsten deposits formed by hydrogen reduction of tungsten chloride
Hudson, R. G.↗
Preferred-orientation analysis of polycrystalline materials
Automatic device built around a goniometer examines characteristics of polycrystalline materials and determines preferred orientations of crystallites. It is automatically rotatable in each of two planes and has circuit regulated sequential rotation. A fixed X ray source in conjunction with a detector examines the material.
De Wys, E. C.↗
Shock-induced preferred disorder in solids.
X ray detectable preferred disorder in solids by shock loading studied in Ainsworth meteorite and in hexagonal alpha silicon dioxide
Jaeger, R. R.↗
Flavor preferences for formula diets
Flavor sweetening preference in high protein and high fat diets, basing human subjects experimental range on choice of formulas
Calloway, D. H.↗
On preferred disorder and the shock history of chemical group IVA meteorites
Preferred disorder and shock histories of chemical group 4A meteorites from metallographic and X ray diffraction, discussing preterrestrial shock loading
Jain, A. V.↗
Identification of situations where cooperation is preferable to use of median game theory
Identification of situations where cooperation is preferable to median game theory - Themis project
Walsh, J. E.↗
Performance of cylindrical converters with preferred-crystal-orientation emitters of chemically vapor deposited tungsten
Design and evaluation of cylindrical out-of-pile thermionic converter test vehicle to determine performance of tungsten emitters with preferred crystal orientation
Samstad, G. I.↗
Recreational preferences in potential space crew populations
Recreational preferences among potential space crews from questionnaire analysis
Karnes, E. W.↗
Conservation laws and preferred frames in relativistic gravity
Conservation laws and preferred frames in relativistic gravity
Will, C. M.↗
The influence of a thoria dispersion on preferred orientation in nickel alloys.
Preferred orientation has been examined in extruded, drawn, and swaged nickel, nickel-20% chromium, and nickel-20% chromium-10% tungsten, with and without a dispersion of 2 vol % of thoria particles. Duplex 100 (in carets) + 111 (in carets) fiber textures were observed in most cases. The 100 (in carets) component was stabilized by the presence of particles and also by the application of intermediate anneals during deformation. These results and the stability of the deformed state in thoriated nickel are attributed largely to the action of the particles in generating homogeneous deformation.
Hutchinson, W. B.↗
A method for determining the preferred orientation of crystallites normal to a surface
Techniques representing the angular distribution of a particular direction in a crystallographic reference frame or analytical methods were developed. The data required by these techniques for displaying preferred orientation is obtained by measuring the orientation of a large number of crystallites. This may be done visually using etch-pit or Laue techniques which, experimentally, are both tedious and difficult. The intensities of X ray diffraction maxima are proportional to the number of crystallites whose crystallographic plane normals bisect the incident and diffracted beams. Parameters used in calculating powder patterns are also presented.
Snyder, R. L.↗
Pilot preference and procedures at uncontrolled airports
The report presents the results of a pilot questionnaire utilized at the 1974 Reading, Pennsylvania Air Show to obtain data on pilot procedures and preference in the terminal airspace of uncontrolled airports.
Parker, L. C.↗
Solar power satellite system definition study. Part 3: Preferred concept system definition
A concise but complete system description for the preferred concept of the Solar Power Satellite System is presented. Significant selection decisions included the following: (1) single crystal silicon solar cells; (2) glass encapsulated solar cell blankets; (3) concentration ratio 1; (4) graphite composite materials for primary structure; (5) electric propulsion for attitude control; (6) klystron RF amplifier tubes for the transmitter; (7) one kilometer diameter transmitter with a design trans mission link output power of 5,000 megawatts; (8) construction in low earth orbit with self-powered transfer of satellite modules to geosynchronous orbit; and (9) two-stage winged fully reusable rocket vehicle for transportation to low earth orbit.
Source record↗
A preference-ordered discrete-gaming approach to air-combat analysis
An approach to one-on-one air-combat analysis is described which employs discrete gaming of a parameterized model featuring choice between several closed-loop control policies. A preference-ordering formulation due to Falco is applied to rational choice between outcomes: win, loss, mutual capture, purposeful disengagement, draw. Approximate optimization is provided by an active-cell scheme similar to Falco's obtained by a 'backing up' process similar to that of Kopp. The approach is designed primarily for short-duration duels between craft with large-envelope weaponry. Some illustrative computations are presented for an example modeled using constant-speed vehicles and very rough estimation of energy shifts.
Kelley, H. J.↗
A Precision Recursive Estimate for Ephemeris Refinement (PREFER)
A recursive filter/smoother orbit determination program was developed to refine the ephemerides produced by a batch orbit determination program (e.g., CELEST, GEODYN). The program PREFER can handle a variety of ground and satellite to satellite tracking types as well as satellite altimetry. It was tested on simulated data which contained significant modeling errors and the results clearly demonstrate the superiority of the program compared to batch estimation.
Gibbs, B.↗