Results 261 to 270 of about 74,722 (304)

Characteristics of the impulsive phase of flares

1992
The impulsive phase of flares is an observational concept, characterized by spiky emissions from γ-rays to radio waves. It is generally agreed that during this time a large fraction of the. original flare energy resides in energetic particles which are manifested in these emissions.
A. O. Benz, M. J. Aschwanden
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Impulse Signal Transmission and Synthesis Characteristics

2018 IEEE 3rd International Conference on Cloud Computing and Internet of Things (CCIOT), 2018
Transmission and synthesis characteristics of impulse signals is one of key technologies of the time-domain radar system. This paper regards the unit antenna as the radiation power and gives transmission and synthesis characteristics of the array antenna impulse signals. From theoretical and experimental results, the experimental results are consistent
Longfei Dang, Miao Yang
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Impulse Characteristics of Aerial Spacer Cable

IEEE Transactions on Power Apparatus and Systems, 1967
Although the overall performance record of aerial spacer cable on the Public Service Electric and Gas Company system has been excellent, the number of failures caused by lightning appears to be disproportionately high. To determine the optimum design criteria of this type of distribution system, a program of laboratory impulse tests was established ...
J. Gill, R. Stys, R. Seely
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Impulse transient characteristic of grounding grids

2002 3rd International Symposium on Electromagnetic Compatibility, 2003
The lightning transient characteristics of a substation grounding grid are analyzed in detail, especially considering the dynamic and nonlinear effects of soil ionization around grounding conductors and the inductance between grounding conductors. The analysis results are calculated by a loss transmission-line model with distributed time-variable ...
null Gao Yanqing, null He Jinliang, null Zeng Rong, null Liang Xidong   +3 more
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Impulse voltage characteristics of circuit breakers

Electrical Engineering, 1954
Insulation co-ordination is a major consideration in the cost and design of a complete electric power system and of all individual pieces of apparatus. Basic impulse levels have been standardized so that apparatus and protective equipment can be co-ordinated. These levels are measured by withstands on specified test waves.
V. E. Phillips, R. H. Miller
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Modelling characteristics of the impulse transformer in a wide frequency range

International Journal of Circuit Theory and Applications, 2020
SummaryIn the paper, a new compact electrothermal model of the impulse transformer is proposed. This model has a form of a subcircuit dedicated for SPICE and could be used for low power impulse transformers applicable in switch‐mode power supplies used in electronics.
Krzysztof Górecki, Malgorzata Godlewska
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The characteristics of impulsive solar EUV bursts

Solar Physics, 1978
We examine a number of high time resolution intensity-time profiles of EUV impulsive bursts as observed by the Harvard College Observatory EUV Spectroheliometer carried aboard the Skylab Apollo Telescope Mount. These bursts are found to be synchronous (to within the instrumental time resolution of 5.5 s) in all wavelengths observed, corresponding to ...
A. Gordon Emslie, Robert W. Noyes
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The Nature and Characteristics of the Impulsive Virtue

1994
The impulsive virtue can function in all directions, as the Dutch clearly show who, with one thrust of the foot can glide either in a straight line or a circle on their ice skates. While this virtue has a greater effect on larger rather than smaller objects, provided only that they both are of similar material (as was said in the preceding Chapter), it
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Multipath characteristics of impulse radio channels

VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026), 2002
We investigate the multipath characteristics of the impulse radios (IR) which have drawn much attention for future high-speed wireless communication services. For this objective, we observe the characteristics of bit error rates through computer simulations for the deterministic two-path model and the statistical indoor multipath model of Saleh and ...
null Hojoon Lee, null Byungchil Han, null Yoan Shin, null Sungbin Im   +3 more
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The Impulse Characteristics of Electrical Insulation Operating at Cryogenic Temperatures

IEEE Transactions on Electrical Insulation, 1981
This paper reports the transient voltage breakdown characteristics of electrical insulation operating at cryogenic temperatures. Nomex®e, Tyvek® and polypropylene film/cellulose paper laminate (PPLP) specimens impregnated with liquid nitrogen (LN2) and containing cavities of known dimensions were subjected to either 1.2/50 or 250/2500 ps impulses of ...
Bulinski, A. T., Densley, R. J.
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