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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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Steady-state differential calorimeter, which displays good accuracy and reproducibility of results, is used to measure gamma heating in a reactor environment. The calorimeter has a long life expectancy since it is virtually unharmed by the reactor environment.
Differential equations and their relationships to dynamic systems and control theory, with bibliographies
Variable mesh multistep methods for ordinary differential equations
Variational problems involving functional differential equations, and derivation of general maximum principle involving adjoint variables or multipliers
Differential dynamic programming to develop second order and first order approximation methods for determining optimal control
Functional differential equations for determining n-dimemensional vector spaces - Liapunov function asymptotic theory of linear systems, and Floquet theory
Representations for solutions of linear functional differential equations
Design criteria for solid state electronic, high speed iterative differential analyzer using integrated circuits
Explicit numerical methods for integrating coupled nonlinear ordinary differential equations with parasitic eignevalues
Lie transformation group for solution of partial differential equations
Performance characteristics and error reduction methods for differential pressure transducer
Liapunov functions and exact differential equation
Liapunov stability theory generalized and applied to class of partial differential equations
Response differentiation by rats in slow rotating chamber
Numerical methods for integrating nonlinear differential equations with parasitic eigenvalues
Maximum principle for optimal control problems with delay-differential system equations
Behavior near periodic orbit of functional differential equations
Feasibility of differential ion pumping concept for reducing pressure during vacuum deposition of thin films