Transor analysis
Reliability and failure modes of adaptive restoring circuit module Transor
LOGIC CIRCUIT↗
SEARCH · Engineering Papers
Results for “Restore”
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.
On the minimum effort regulation of stationary linear systems.
Minimum effort restoration of perturbed system to equilibrium state defined as time varying function of instantaneous state of system
TIME OPTIMAL CONTROL↗
Exclusive-or logic circuit has useful properties
Single, simple exclusive-or logic connective eliminates excessive hardware and the number of interconnections between logic modules. This circuit performs the necessary switching for the exclusive-or operation and amplifies, restores, and inverts the signal.
Batte, W. G.↗
Minimum permissible leakage resistance established for instrumentation systems
Mathematical formulas are used to determine if, and to what extent, an instrumentation system that has been exposed to the elements should be dried out to restore minimum permissible leakage resistance to ground. Formulas are also derived and used for an intermediate number of systems that are exposed to moisture penetration.
Perrin, J. L.↗
Some Theoretical Aspect of Cryosorption
When a gas or vapor is allowed to come to equilibrium with a solid surface, the concentration of gas molecules is always found to be greater in the immediate vicinity of the surface than in the free gas phase, regardless of the nature of the gas or of the surface. The process by which this surface excess is formed is termed adsorption. In any solid, the atoms at the surface are subject to unbalanced forces of attraction normal to the surface plane; the balance of forces is partially restored by the adsorption of gas molecules. If the forces responsible for adsorption are of van der Waals type, the process is called physical adsorption. Furthermore, if the solid (and its surface) are maintained at relatively low temperatures (say 50°K or below), the term cryosorption is used.
ADSORPTION↗
The status of passive-gravity-gradient stabilization.
Damping technique effect on performance of gravity-gradient satellite stabilization, noting means of creating restoring torques
SATELLITE ATTITUDE CONTROL↗
Eddy current disk valve
Quick-opening, intermittent flow valve requires a small amount of electrical energy to open and which closes by the restoring action of a rubber stop. This eddy current disk valve opens in less than 100 microseconds and takes only 10 joules of energy.
Larson, A. V.↗
Solenoid hammer valve developed for quick-opening requirements
Quick-opening lightweight solenoid hammer valve requires a low amount of electrical energy to open, and closes by the restoring action of the mechanical springs. This design should be applicable to many quick-opening requirements in fluid systems.
Wrench, E. H.↗
A Study of Hereditary Springs in Relation Hysteretic Damping, Volume III FINAL Report
Mathematical model for representing restoring force in hereditary springs showing hysteretic damping
HYSTERESIS↗
Pneumatic raft automatically reforms after rupture of buoyant member
Unique, inflated, expandable socks are attached within the inflated chamber of a raft or a float in such a way that collapse of the chamber wall through damage, causes the adjacent sock to expand and restore the original configuration.
Radnofsky, M. I.↗
Shallow grooves in journal improve air bearing performance
Bearing designs, which shape the surface to create artificial fluid-film wedges in the absence of any applied radial load, generate radial restoring forces to keep journals from whirling. Helical- or herringbone-grooved journals or rotors show most promise of stable operation, with no sacrifice in load capacity.
Anderson, W. J.↗
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.↗
Multichannel analyzers at high rates of input
Multichannel analyzer, used with a gating system incorporating pole-zero compensation, pile-up rejection, and baseline-restoration, achieves good resolution at high rates of input. It improves resolution, reduces tailing and rate-contributed continuum, and eliminates spectral shift.
Rudnick, S. J.↗
Blood volume changes in altitude exposed rats returned to ambient pressure.
Blood volume in rats exposed to high altitude and deacclimated at ambient pressure, noting changes and control level restoration
Anthony, A.↗
Highly stable biased amplifier and stretcher system
Amplifier and stretcher system, which minimizes thermal effects and compensates for repetition-rate effects, maintains resolution levels in spectrum analysis. An additional inverting amplifier is used in the system to provide a noiseless charge restorer.
Roddick, R. G.↗
Repair of brazed steel honeycomb-sandwich panels with vertical pins only
Vertical steel tubular pins restore the shear strength of honeycomb panels and improve the quality of the repaired panel. New repair method eliminates diagonal pins. Vertical pins are welded to face sheets, forming ''Vierendeel Truss'' arrangement to transmit shear loads.
Rowe, J.↗
Mission Control Center Progress report, 1 Jan. - 31 Mar. 1970
H-2 simulation readiness, ALSEP support, ground support system training, and restoration of simulated equipment faults
Source record↗
Recent advances on gradient methods in control theory
Sequential and combined gradient restoration algorithms for functional minimization in control theory
Miele, A.↗