Method of particular solutions for linear, two- point boundary-value problems.
Boundary value problem solved by combining linearly particular solutions of original nonhomogeneous set
Miele, A.↗
SEARCH · Search NASA
Results for “Problem Solving”
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Electrochemical techniques in fuel cell research.
Electrochemical techniques to solve problems of fuel cells using cheap fuels and electrode materials, discussing electrode kinetics, high temperature instabilities, etc
Gileadi, E.↗
Simulated High Reynolds Number Flow About a Circular Cylinder Final Report
Numerical analysis method for solving problem of high Reynolds number flow around circular cylinder based on potential theory and influence coefficients using Cartesian grid system
Ujihara, B. H.↗
Periodic orbits in trigonometric series
Problem solving of periodic motion using trigonometric series
Carpenter, L.↗
A second-order variational method for discrete-time optimal control problems.
Discrete time optimal control problems solved by second order variational algorithm, developing recurrence relations for perturbation equations
Koivo, A. J.↗
Metal drilling with portable hand drills
Study of metal drilling solves problems of excessive burring, oversized holes, and out-of-round holes. Recommendations deal with using the proper chemical coolants, applying the coolants effectively, employing cutting oils, and dissipating the heat caused by drilling.
Edmiston, W. B.↗
An analysis and comparison of several trajectory optimization methods
Methods of solving problem associated with optimum transfer of spacecraft
Lewallen, J. M.↗
Numerical study of weakly unstable electron plasma oscillations
Unstable electron plasma initial value problem solved by numerically integrating Vlasov equation in one dimension
Armstrong, T. P.↗
Supersonic leading edge problem according to the ellipsoidal model
Supersonic leading edge problem solved by ellipsoidal model using discrete ordinate method compared with BGK model solution
Huang, A. B.↗
Parameters and factor structure of a three- phase code transformation task /3P-COTRAN/
Three phase code transformation task for human subjects, determining memory aid role in problem solving phase from factor analysis
Alluisi, E. A.↗
Technology and organization
Technology relevance to organizational structure, discussing planning models based on problem solving and performance
Hunt, R. G.↗
Psychrometric chart for physiological research
Chart facilitates use of graphical techniques for solving problems involving thermodynamic properties of moist air. The properties are presented, and their units of measurement are listed. Chart presenting conditions at standard atmosphere pressure at sea level is most useful.
Chambers, A. B.↗
Gas core reactors for MHD power systems
Gas core reactors and MHD generator to solve problems of growing demand for electric power without thermal pollution
Shelton, S. V.↗
Heat transfer to the transpired turbulent boundary layer
Mathematical models for solving problems of heat transfer on transpired turbulent boundary layer
Kays, W. M.↗
Redundant data management system
Redundant data management system solves problem of operating redundant equipment in real time environment where failures are detected, isolated, and switched in simple manner. System consists of quadruply-redundant computer, input/output control units, and data buses. System inherently contains failure detection, isolation, and switching function.
Hall, J. R.↗
User oriented data processing at the University of Michigan
The multispectral techniques have shown themselves capable of solving problems in a large number of user areas. The results obtained are in some instances quite impressive. In many instances, the multispectral detection of various phenomena is an empirical fact for which there is little physical explanation today. To date, most of the user applications that have been addressed are exploratory in nature. The closest approximation to an operational situation encountered so far is that of the survey of wetlands in North Dakota reported in this paper.
Thomson, F. J.↗
Cryogenic glass-filament-wound tank evaluation
High-pressure glass-filament-wound fluid storage vessels with thin aluminum liners were designed, fabricated, and tested at ambient and cryogenic temperatures which demonstrated the feasibility of producing such vessels as well as high performance and light weight. Significant developments and advancements were made in solving problems associated with the thin metal liners in the tanks, including liner bonding to the overwrap and high strain magnification at the vessel polar bosses. The vessels had very high burst strengths, and failed in cyclic fatigue tests by local liner fracture and leakage without structural failure of the composite tank wall. The weight of the tanks was only 40 to 55% of comparable 2219-T87 aluminum and Inconel 718 tanks.
Morris, E. E.↗
Advancements in medicine from aerospace research
NASA has taken the lead in implementing the concept of technology utilization, and the Technology Utilization Program is the first vital step in the goal of a technological society to insure maximum benefit from the costs of technology. Experience has shown that the active approach to technology transfer is unique and is well received in the medical profession when appropriate problems are tackled. The problem solving approach is a useful one at the precise time when medicine is recognizing the need for new technology.
Wooten, F. T.↗