An algorithm for reducing a linear, time- invariant differential system to state form.
Algorithm for reducing linear time-invariant differential systems to state form applied to systems described by transfer functions
MATRIX ANALYSIS↗
SEARCH · Search NASA
Results for “reducing”
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.
Determining the effectiveness of fractional G levels in reducing circulatory deconditioning of space flight crews - A new technique and preliminary results.
Fractional g levels for reducing effects of conditioning to zero gravity on prolonged space flights
WEIGHTLESSNESS↗
A kinematic study of the effects of reduced gravity on self-locomotion.
Reduced gravity, pressure suit and load effect on human self-locomotion on lunar surface
HUMAN PERFORMANCE↗
Stress-corrosion cracking of cold-reduced austenitic stainless steels.
Stress corrosion cracking of cold reduced austenitic stainless steels noting effects of marine atmosphere exposure, cold working, welding, etc
STRESS CORROSION↗
Pathology of animals exposed for periods up to 92 days to a pure oxygen atmosphere at reduced pressure.
Lung, liver, kidney and heart pathology of dogs, monkeys, rats and mice exposed for 2 to 13 weeks to pure oxygen atmosphere at reduced pressure
ANIMAL STUDY↗
Studies of rolling-element lubrication and fatigue life in a reduced pressure environment.
Five-ball fatigue tester to investigate reduced pressure environment effect on rolling element fatigue life with polyphenyl ether
ROLLING CONTACT BEARING↗
Reducing bubbles in glass coatings improves electrical breakdown strength
Helium reduces bubbles in glass coatings of accelerator grids for ion thrustors. Fusing the coating in a helium atmosphere creates helium bubbles in the glass. In an argon atmosphere, entrapped helium diffuses out of the glass and the bubbles collapse. The resultant coating has a substantially enhanced electrical breakdown strength.
Banks, B.↗
Method of reducing time base error in digital magnetic recorders
Apparatus reduces Time Base Error /TBE/ in the playback of digital data from magnetic recording equipment. The apparatus uses a magnet which employs a servo position control of the tape by which the playback data clock is phase locked with a fixed frequency reference signal.
Moore, J. M.↗
Method for reducing snap in magnetic amplifiers
Method of reducing snap in magnetic amplifiers uses a degenerative feedback circuit consisting of a resistor and a separate winding on a magnetic core. The feedback circuit extends amplifier range by allowing it to be used at lower values of output current.
Fischer, R. L. E.↗
High resolution Ge/Li/ spectrometer reduces rate-dependent distortions at high counting rates
Modified spectrometer system with a low-noise preamplifier reduces rate-dependent distortions at high counting rates, 25,000 counts per second. Pole-zero cancellation minimizes pulse undershoots due to multiple time constants, baseline restoration improves resolution and prevents spectral shifts.
Brenner, R.↗
Reduced pressure environment effects on rolling element fatigue life with super refined mineral oil lubricant
Reduced pressure effects on fatigue life of roller steel ball bearings with mineral oil lubricants
Parker, R. J.↗
Investigation of long-term effect of a reduced pressure oxygen atmosphere on animals and man
Effects on animals and human beings subjected to prolonged confinement in reduced pressure and high oxygen environments
Genin, A. M.↗
Wind tunnel investigation of techniques for reducing cowl drag of an axisymmetric external-compression inlet at Mach 2.49
Wind tunnel investigation of techniques for reducing cowl drag of external compression inlet at Mach 2.49
Calogeras, J. E.↗
The pressure profile of a rocket experiment and methods of reducing the gas load
Pressure profile of Javelin rocket experiment and methods for reducing gas load
Mc Ilwraith, N.↗
Plate-gap model of a porous solid and its application to impact by reduced density projectiles
Plate-gap model of porous solid and application to reduced density projectile impact
Heyda, J. F.↗
Effects of reduced airspeed for landing approach on flying qualities of a large jet transport equipped with powered lift
Effects of reduced landing speeds on flying qualities of Boeing 707 for simulated instrument approaches
Crane, H. L.↗
Effects of reduced gravity on heat transfer.
Reduced gravity effects on heat transfer noting free and forced convection, boiling, condensation, forced flow and fuel combustion
Siegel, R.↗
Turbulence measurements in pipe flow of a drag- reducing non-Newtonian fluid.
Turbulent shear pipe flow of drag reducing nonNewtonian fluid, measuring streamwise turbulence intensity and energy spectra
Harkness, J.↗