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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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Correction of linear functional differential equations with time delay showing error due to incorrect interchange of order of integration involving Stieltjes integral
Reaction rate constants of ion-molecule interchange reaction as function of temperature, flow velocity, activation energy and constant part of steric factor P
Miniature plug and receptacle, which eliminates the need for permanent fixed leads, is used on wind-tunnel force balances, in the interface connections of microelectronic modular assemblies, and in electric and electronic systems where subsystems must be removed or interchanged.
Secondary air injection achieving momentum interchanges to induce controlled steady state dynamic pressure disturbances for jet engine tests
Multimission solar electric spacecraft of modest size and variable propellant loading for interchangeable space missions - Vol. 1A
Multimission solar electric spacecraft for interchangeable space missions final technical systems data - Vol. 1B
Multimission solar electric spacecraft for interchangeable space missions program plans and cost estimates - Vol. 2
Multimission solar electric spacecraft for interchangeable interplanetary missions - Final summary technical report
Eating, drinking and gnawing motivation interchangeability under hypothalamic stimulation, noting role of neural substrate activation
Finite Larmor radius interchange and LF drift oscillations due to magnetospheric temperature and density gradient stresses in trapped plasma
Script-F radiative interchange matrix for enclosures with arbitrary surface emission and reflection characteristics
Miniature tungsten inert gas welding torch, used with variously formed interchangeable soft copper tubing extensions, provides inexpensive, accurate welding capability for inaccessible joints. Kit effectively welds stainless steel tubing 0.089 cm thick. Other applications are cited.
Program uses finite element displacement method for solving linear response of large, three-dimensional structures subject to static, dynamic, thermal, and random loadings. Program adapts to computers of different manufacture, permits up-dating and extention, allows interchange of output and input information between users, and is extensively documented.
System design is based on development of standardized, interchangeable modules that minimize power dissipation, interconnecting cables and size. Maximum flexibility is achieved by using building block approach where all data modules are identical and are connected at any remote location and addressed in random fashion from central unit.
Joint permits smooth and easy movement of disabled arm and is smaller, lighter and less expensive than previous models. Device is interchangeable and may be used on either arm at the shoulder or at the elbow.
Thin film capacitive bolometer and capacitance temperature interchange sensor
Several strategies for the dynamic allocation of buffer storage are simulated and compared. The basic algorithms investigated, using actual statistics observed in the Univac 1108 EXEC 8 System, include the buddy method and the first-fit method. Modifications are made to the basic methods in an effort to improve and to measure allocation performance. A simulation model of an adaptive strategy is developed which permits interchanging the two different methods, the buddy and the first-fit methods with some modifications. Using an adaptive strategy, each method may be employed in the statistical environment in which its performance is superior to the other method.
The actuator that will point the gimbaled engine, thus performing the autopilot actuation function for the Mariner Mars 1971 spacecraft, is described. The gimbaled engine has two axes of freedom, providing two-axis control to the spacecraft. Motion for the two axes is provided by identical and interchangeable actuators-gearless electromechanical linear servomechanisms. Each actuator is designed to have a long service life in the space environment and to be able to function at speeds ranging from hours per cycle to cycles per second.