Results 261 to 270 of about 5,592,241 (297)

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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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 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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DIRECTIONAL CHARACTERISTICS OF IMPULSE RADIATING ANTENNA

Инженерная физика, 2018
Для описания направленности импульсно излучающей антенны предлагается использовать энергетический коэффициент направленного действия и отношение плотности энергии, излучаемой в течение импульса в направлении на точку наблюдения, к плотности энергии на оси антенны.
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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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Characteristic exponents of impulsive differential equations in a banach space

International Journal of Theoretical Physics, 1988
Consider the impulsiv differential equation \(dx/df=A(+)x|_{t\neq t_ n}\quad x(t_ u+0)=Q_ nx(t_ n-0)\) in a Banach space X, where A(t), \(Q_ n: X\to X\) are linear bounded and \(t_ n\) are fixed impulsive moments. Let W(t,\(\tau)\) denote the evolutionary operator of the above problem.
Zabrejko, P. P., Bajnov, D. D., Kostadinov, S. I.   +2 more
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Impulse and 60-cycle characteristics of driven grounds — II

Electrical Engineering, 1942
I. Introduction Driven grounds are important in electric power transmission and distribution. In fact, they comprise one of the essential elements in the art of lightning protection. Yet, to this day, the value of protection derived from grounds under actual operating conditions of lightning discharge is difficult to state in full quantitative measure.
P. L. Bellaschi, R. E. Armington, A. E. Snowden   +2 more
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Servo motor characteristics by impulse testing

Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry, 1962
IT IS THE PURPOSE of this paper to suggest the possibility and to consider some of the initial analyses and results of determining certain servo motor steady-state and transient characteristics by impulse testing. If the method can be successfully applied to servo motors, it appears to be reasonable that many other servo and control components could be
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Pulse propagation characteristics by an impulse technique

Medical & Biological Engineering & Computing, 1983
D L, Newman, S J, Penney, S E, Greenwald
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