Results 291 to 300 of about 4,124,580 (330)

On the Radiation from Transient Light Sources

Proceedings of the Physical Society. Section A, 1949
A theoretical treatment is given of the problem of analysing the radiation from transient light sources in the form of clouds of incandescent particles. Recently a method of correlating this radiation with various physical parameters has been suggested by E. F. Caldin.
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The Source and Nature of Transient Surges

IEEE Transactions on Industry Applications, 1977
Sources of transient voltages or surges due to various phenomena normal to the power station environment are described along with typical waveforms and other parameters of the surges coupled into control circuits. The mechanism by which surges are generated by switching of inductive devices in low voltage control circuits is described in detail.
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Response of plates to transient sources

Journal of Sound and Vibration, 1974
A method of treating the response of an infinite plate to a transient load, under plane strain conditions, is proposed. The final solution is given in the form of an infinite series of integrals. Each term of the series is readily evaluated by Cagniard's technique and only a finite number of terms are required to determine the state of stresses for any
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The Burst and Transient Source Experiment

Space Programs and Technologies Conference and Exhibit, 1993
The Burst and Transient Source Experiment (BATSE) is one of four experiments 011 the Compton Gamma Ray Observatory (GRO), which was launclied into a 450-!a orbit on April 5, 1991. BATSE was designed primarily for the study of gamma-ray bursts, unexplained flashes of celestial g a m m a r ys tliat last from a fraction of a second to over 100 secouds and
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Transient X-ray sources

Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1976
Abstract One of the most striking results of Ariel 5 has been the large number of transient sources which has been observed, including what is probably a new type which is relatively short-lived and one near the Galactic Centre which is also probably distinct from the others since it was also observed as a radio source.
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Hydraulic Transients: A Seismic Source in Volcanoes and Glaciers

Science, 1979
A source for certain low-frequency seismic waves is postulated in terms of the water hammer effect. The time-dependent displacement of a water-filled subglacial conduit is analyzed to demonstrate the nature of the source. Preliminary energy calculations and the observation of hydraulically generated seismic radiation from a dam indicate the ...
W S, Lawrence, A, Qamar
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Acoustic intensity measurements of transient noise sources

The Journal of the Acoustical Society of America, 1980
The theoretical background to the measurement of sound energy flow generated by transient sources, such as impact machines, will be presented. Various means of implementing the estimation process will be discussed and reference will be made to the problems of field measurement.
F. J. Fahy, S. J. Elliott
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Switching Transients Using Injection of Sources

2021
This chapter presents another methodology for the study of transient phenomena caused by the opening or closing of one or more switches, in circuits that are or are not operating in a steady-state, before switching. It is a technique applicable, preferably, to linear circuits and invariant over time, and whose principle is to simulate the closing of a ...
José Carlos Goulart de Siqueira, Benedito Donizeti Bonatto   +1 more
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A Transient Magnetic Dipole Source in a Dissipative Medium

Journal of Applied Physics, 1953
The solution is given for the electric field of a small current-carrying loop which is immersed in a dissipative medium and is energized by a step-function current. Approximate expressions for the magnetic fields are also derived. The propagation of an electromagnetic pulse in sea water is then discussed.
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Transient Acoustical Sources in an Idealized Jet

The Journal of the Acoustical Society of America, 1972
The transmission of acoustic disturbances from the interior of the jet through the mean velocity profile and into the farfield is studied in detail. The noise generator is taken to be a sequence of transient acoustical point sources traveling with the local fluid in the idealized jet.
E. W. Graham, B. B. Graham
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