Results 271 to 280 of about 125,363 (305)

Current induced second harmonic generation in semiconductors

Applied Physics Letters, 1995
Direct current in semiconductor is theoretically shown to be capable of doubling the frequency of the incoming optical radiation. The second order susceptibility, proportional to the current is calculated to be in the 10−14−10−13 m/V range. Applications of the novel phenomenon in probing and mapping of the current in semiconductor devices are ...
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Valuation of harmonic current injections

2002
The number of power electronic and distorting loads, continue to grow at a rapid pace. Accompanying this growth in distortion sources is an increased sensitivity of certain types of loads to harmonic distortion, and poor power quality in general. The result is greater variance in the value loads place on a harmonic free supply, and therefore what they ...
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Voltage and current harmonics caused by corona

Journal of the American Institute of Electrical Engineers, 1921
THE FOLLOWING investigation was made to study the effects of corona in producing voltage and current harmonics in transmission systems. In the early work on corona in 1910 a very complete oscillographic study was made of voltage and current. It was found that the current wave of corona loss very much resembled the excitation current wave of a ...
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Harmonic Currents and Canonical Complexes

2001
In the present chapter we establish a Hodge theory for the complexes In particular, we prove a decomposition of the spaces which resembles the Hodge decomposition on compact Riemannian manifolds. The method can be explained easily in the classical framework. Let (M,g) be a compact Riemannian manifold with Hodge-Laplacian on p-forms.
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Characterizing harmonic currents generated by fluorescent lamps in harmonic domain

IEEE Transactions on Power Delivery, 2003
This letter presents a harmonic-domain method for modeling currents generated by the fluorescent lamp with an electromagnetic ballast. Both of the nonlinearities of lamp components and the effect of source voltage distortion on the lamp are taken into account in the proposed model.
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Alternating current polarography in the harmonic multiplex mode. Simultaneous acquisition of direct current, fundamental harmonic alternating current, and second harmonic alternating current polarographic responses

Analytical Chemistry, 1972
Donald E. Glover, Donald E. Smith
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New Harmonic Current Suppressor

Journal of Electrical Engineering, 2018
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Coupling Harmonic Voltages Considered Harmonic Currents Injection Method for Torque Ripple Reduction

Journal of Electrical Engineering and Technology, 2021
Shang Jiang
exaly  

Circulating Harmonic Currents Suppression of Level-Increased NLM Based Modular Multilevel Converter With Deadbeat Control

IEEE Transactions on Power Electronics, 2020
Xingxing Chen, Jinjun Liu, Shuguang Song
exaly  

Geomagnetically Induced Currents and Harmonic Distortion: High Time Resolution Case Studies

Space Weather, 2020
Mark A Clilverd, Craig J Rodger, James B Brundell   +2 more
exaly