Minimal plastid genome evolution in the Paulinella endosymbiont
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Hwan Su Yoon↗
SEARCH · Engineering Papers
Results for “Minimization”
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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High tree diversity exposed to unprecedented macroclimatic conditions even under minimal anthropogenic climate change
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Coline C. F. Boonman↗
Small digital recording head has parallel bit channels, minimizes cross talk
A small digital recording head consists of closely spaced parallel wires, imbedded in a ferrite block to concentrate the magnetic flux. Parallel-recorded information bits are converted into serial bits on moving magnetic tape and cross talk is suppressed.
Eller, E. E.↗
Latitudinal and seasonal distribution of the daily maxima and minima of f0f2 values <o shirotnom i sezonnom raspredelenii maksimal'nykh - minimal'nykh sutochnykh znacheniy f0f2<
Latitudinal and seasonal distribution of daily maxima and minima of f- 2 layer critical frequencies
CRITICAL FREQUENCY↗
Low-cost tool minimizes damage to O-rings during installation
Tapered cylindrical tool enables O-ring installation over threaded fasteners without seal damage.
Source record↗
Magnetically operated limit switch has improved reliability, minimizes arcing
Limit switch for reliable, low-travel, snap action with negligible arcing uses an electrically nonconductive permanent magnet consisting of a ferrimagnetic ceramic and ferromagnetic pole shoes which form a magnetic and electrically conductive circuit with a ferrous-metal armature.
Steiner, R.↗
Study to minimize hydrogen embrittlement of ultrahigh-strength steels
Hydrogen-stress cracking in high-strength steels is influenced by hydrogen content of the material and its hydrogen absorption tendency. Non-embrittling cleaning, pickling, and electroplating processes are being studied. Protection from this hydrogen embrittlement is important to the aerospace and aircraft industries.
Elsea, S. T.↗
Concept for modifying drafting instruments to minimize smearing
Ball bearing standoffs added to drafting instruments enable the instruments to be moved about, with their surfaces out of contact with the drawing paper. This provides a safeguard against smearing of the lines.
Rennie, T. A.↗
Transistor biased amplifier minimizes diode discriminator threshold attenuation
Transistor biased amplifier has a biased diode discriminator driven by a high impedance /several megohms/ current source, rather than a voltage source with several hundred ohms output impedance. This high impedance input arrangement makes the incremental impedance of the threshold diode negligible relative to the input impedance.
Larsen, R. N.↗
Solenoid valve design minimizes vibration and sliding wear problem
Two-way cryogenic solenoid valve resists damage from vibration and metallic interfacial sliding. The new system features a flat-faced armature guided by a flexure disk which eliminates sliding surfaces and is less subject to contamination and wear.
Gillon, W. A., Jr.↗
Path integrals, Liapunov functions, and quadratic minimization.
Nonlinear DC circuits analyzed by digital computer for application to path integrals and stability problems
SYSTEM STABILITY↗
The minimal realization of a nonanticipative impulse response matrix.
Minimum realization of linear time-varying nonanticipative system characterized by its impulse response matrix
MATRIX ANALYSIS↗
Minimization of errors in shock tube investigation of bromine dissociation rates in presence of noble gases
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Warshay, M.↗
Weld microfissuring in Inconel 718 minimized by minor elements
Manganese, silicon, and magnesium markedly reduce the tendency of Inconel 718 to weld microfissuring. By combining a manganese, 0.20 percent by content, with silicon, greater than 0.25 percent content, or by adding 20 ppm of magnesium, the weld microfissuring decreased in the standard alloy.
Morrison, T. J.↗
Constrained minimization under vector-valued criteria in linear topological spaces.
Scalarization conditions and theorems extended to linear topological spaces
Da Cunha, N. O.↗
Minimal time control of linear systems with control amplitude and rate saturations
Time optimal control of linear systems with constraints on control amplitude and rate
Luh, J. Y. S.↗
Sample reduction techniques for minimizing quantization errors
Sample reduction method for quantization error analysis in analog-to-digital conversion of random time histories
Su, M.-Y.↗
Circuit minimizes current drain caused by neon indicator lamps
Circuit lights neon lamp by back leakage current of the driving transistor, rather than by the transistors saturation or ''on-state'' current, thereby eliminating lowering of the voltage necessary for indication. Circuit has operating speed greater than indication circuit using a saturation principle and aids in power rationing.
Drylie, C. D.↗