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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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Differential reflectivity concept use in determining scattered electromagnetic radiation from lunar surface
Linear fractional transformation for obtaining rational approximations to response of physical system defined by second order nonlinear differential equation with constant coefficients
Commutation of discretization and differentiation of operator - application to Newton method
Differential distribution of RNA and protein in ribosomal fractions of Escherichia coli
Differential cross sections by flight time spectroscopy for proton production in reactions of 160 MeV protons on nuclei
Nonlinear parabolic differential equation stability, boundedness and uniqueness of solutions obtained by Liapunov direct method
Beam-width limited radar reflections from idealized Moon obtained with aid of differential reflectivity concept
Igneous rock differentiation as applied to Moon, noting pressure-depth and pressure-temperature phase relationships
Pressure valve has a moving annular ring seal that automatically reacts to differential pressure changes across the seat. This valve has good potential for the petroleum and chemical industries.
External pressure band is used to bond aluminum alloy collars to large diameter, stainless steel rings. The band contracts while cooling and exerts pressure on the joint between the silver plated surfaces of the ring and collar which expand toward the band. This diffusion bonding by differential expansion minimizes aluminum deformation.
Trace element variation during magmetic differentiation of tholeiitic rock sample from Tasmania - chlorine and fluorine in hydroxyl lattice sites
System and operating techniques for high resolution radio frequency measurements of Faraday rotation and differential absorption in lower ionosphere using rocket probes
Differential correction and preliminary orbit calculation for lunar satellite orbits
Digital measurement of differential time delay of pseudorandom coded signals
Earth and sun occultation data evaluation for use in differential correction of lunar satellite orbit
Powered flight maneuver data used to reduce state vector uncertainties for lunar satellite orbit differential correction
Numerical solution of boundary value problem for nonlinear integro-differential equation system of hypersonic boundary layer
Differential on-time control technique to achieve long period limit cycle attitude control of space vehicles using reaction jet engines