Latch and trip mechanisms for triggering a large force with a small one.
Latch and trip mechanisms for triggering large loads with small loads through interrupted motion
Tuttle, S. B.↗
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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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Triggering an aurora
Ambient ionospheric electron density studied as triggering mechanism of auroras
Linson, L. M.↗
Parameters affecting firing time of simultaneously triggered trigatron spark gap switches
Parameters affecting firing time of simultaneously triggered trigatron spark gap switches
Williams, M. D.↗
Synthesis of multistage triggers
Design of multistage triggers for digital computers and sampled-data control systems
Zibin, D. K.↗
On the inadequacy of gasdynamic processes for triggering the transition to detonation
Gas dynamic processes insufficiency for triggering transition to detonation obtained from laser schlieren records of nonsteady flow field ahead of accelerating turbulent flame
Meyer, J. W.↗
Digital period detector oscilloscope trigger
Digital period detector oscilloscope trigger for multitrace display
Lushbaugh, W. A.↗
An imploding trigger technique for improved operation of electric arc drivers
Imploding wire trigger technique for high shock velocity electric arc drivers in shock tubes
Dannenberg, R. E.↗
Photodetector triggered pulse selection from a mode locked ruby laser
Photodetector triggered single pulse selection from mode locked ruby laser
Billman, K. W.↗
Stable limit cycles and triggering limits of the first radial model in unstable liquid rockets
Stable limit cycles and triggering limits of first radial mode in nonlinearly unstable liquid propellant rocket motors, using wave equation and Galerkin method
Powell, E. A.↗
Some studies of triggered whistler emissions
Triggered whistler emissions in magnetosphere, considering nonlinear interaction between whistler wave and resonating particles
Dysthe, K. B.↗
The triggering of polar magnetic substorms by storm sudden commencements
Possible relationships are examined between the latitude of a discontinuity in the interplanetary magnetic field for a period prior to sudden storm commencements and the probability of sudden storm commencement-triggered negative bays.
Burch, J. L.↗
Preconditions for the triggering of polar magnetic substorms by storm sudden commencements.
A study of 36 storm sudden commencements (ssc) for the period June 1965 to January 1967 indicates that, for the cases considered, sufficient conditions for the triggering of simultaneous polar magnetic substorm onsets were an ssc amplitude of more than 10 gamma and an average geocentric solar magnetospheric Z component of interplanetary magnetic field of less than -1 gamma over a period of at least 1/2 hour preceding the ssc. All events satisfying these conditions produced simultaneous negative-bay onsets.
Burch, J. L.↗
Flare triggering by coherent oscillations.
The coherent oscillations observed by Tanaka (1972) are shown to carry very high mechanical-energy fluxes of the order of 9.5 to 45 gigaergs/sq cm per sec. This energy can provide all of the energy expended in a large flare, or at least can be used to trigger a flare. The oscillations are assumed to be free modes of the sun, as described by Wolff (1972), and they are expected to be preferentially excited in the plages where large magnetic fields provide conditions favorable to rapid growth times. The energy driving the coherent oscillations may be derived from the flux deficit of sunspots in the plage.
Mullan, D. J.↗
Trigger circuit forces immediate synchronization of free-running oscillator
Device provides positive triggering for inverter synchronization in uninterruptible power supplies. Integrated-circuit oscillator frequency may be higher, lower, or the same as that of the synch pulse and is always synchronized by first clock pulse.
Nagano, S.↗
The supernova trigger for formation of the solar system
It is suggested that the explosion of a Type II supernova triggered the collapse of a nearby interstellar cloud and led to the formation of the solar system. Estimates of the abundances resulting from nuclear processing of the supernova ejecta are presented. It appears promising that nucleosynthesis in this single supernova event can account for most isotopic anomalies and traces of extinct radioactivities in solar-system material.
Cameron, A. G. W.↗
The flute instability as the trigger mechanism for disruption of cometary plasma tails
The sporadic disruption of the plasma tails of some comets has recently been explained to be caused by magnetic-field-line reconnection in the cometary ionospheres due to magnetic-sector-boundary traversals. An alternative model is proposed in which the tail disruption is the end result of compression of the cometary ionosphere by high-velocity solar-wind streams, triggering the flute instability in the marginally stable tangential-discontinuity surface which separates the cometary ionosphere from the solar-wind plasma. According to the proposed model, the tail-disruption events could occur at all heliographic latitudes, whereas the Niedner-Brandt (1978) model should predict that these events are restricted to low heliographic latitudes in view of the present understanding of the sector structure of the heliosphere. Consequently, the high-latitude disruption events observed seem to present a difficulty for the latter model.
Ip, W.-H.↗
Generation and propagation of an electromagnetic pulse in the Trigger experiment and its possible role in electron acceleration
Instruments onboard the Trigger payload detected a large-amplitude, low-frequency, electric field pulse which was observed with a time delay consistent only with an electromagnetic wave. A model for this perturbation is constructed, and the associated field-aligned current is calculated as a function of altitude. This experiment may simulate the acceleration mechanism which results in the formation of auroral arcs, and possibly even other events in cosmic plasmas.
Kelley, M. C.↗
The observation and production of ion acoustic waves during the Trigger experiment
The third flight of the Trigger experiment is described here. Band-limited electric field and density waves were observed shortly after the ion cloud was detected. Since the electric field and density components had similar spectral shape and the wave electric field was oriented parallel to the ambient magnetic field, the waves were identified as collisionless ion acoustic waves. The linear theory of ion-ion streaming is considered a likely generation mechanism for the waves.
Kintner, P. M.↗