Results 251 to 260 of about 1,078,078 (300)
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Geophysical Prospecting, 2013
ABSTRACT Lake sediments may serve as archives on paleoclimatic fluctuations, geomagnetic field variations and volcanic activities. Lake Holzmaar in Eifel/Germany is a maar lake and its lacustrine sediments provide paleoclimatic proxy data. Therefore, knowledge about the geometry and, especially, about the thickness of the sediments is
L. Mollidor +3 more
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ABSTRACT Lake sediments may serve as archives on paleoclimatic fluctuations, geomagnetic field variations and volcanic activities. Lake Holzmaar in Eifel/Germany is a maar lake and its lacustrine sediments provide paleoclimatic proxy data. Therefore, knowledge about the geometry and, especially, about the thickness of the sediments is
L. Mollidor +3 more
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An Efficient Solver for Electromagnetic Transient Simulation
2019In this paper a mesh-free method for electromagnetic transient simulation is presented. This method enables to simulate electromagnetic problems avoiding the use of a regular grid in the discretized model. The proposed method is a particular mesh-free method based on particles, that is no initial regular grid but only an arbitrary particles ...
ALA, Guido +4 more
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Continuous Transient Electromagnetic Sounding
1st EEGS Meeting, 1995Steadily growing abstraction of ground water together with the impact of pollution from surface infiltration have increased the need for hydrogeological investigations of aquifers. The mapping of subsurface resistivity structures using electrical and electromagnetic methods has gained a central role in the set-up of hydrogeological models of catchments
K. I. Sorensen, F. Effers
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An Optimized Method for Transient Electromagnetic Field
2011During the forward transformation of wave-field, two-step optimized algorithm is used for decreasing the number of integral coefficients and sampling in dispersed digital integral, as while as ensure transient electromagnetic field’s calculation precision.
Nannan Zhou, Guoqiang Xue, Xiu Li 0001
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Imaging And Inversion Of Transient Electromagnetic Soundings
8th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 1995Introductory paragraph for this paper is available only in the PDF and GZipped PS ...
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Electromagnetic transient simulation studies
1999This chapter describes some research results of EMTP-based digital studies of SPWM UPFC. Useful insights into UPFC performance have been attained through detailed analysis and simulation of the UPFC internal structure and regulation method. Voltage and power control simulation results have demonstrated the functions of the UPFC.
J. Y. Liu, Y. H. Song
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Electromagnetic transient testing
1994In this brief introduction to the nature of transients and disturbance to power distribution systems it has only been possible to acquaint the reader with the broad categories of effects and show some examples of applicable standards and specifications.
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The transient electromagnetic field of a dielectric layer
Applied Mathematics and Computation, 2004For many years the correlation between the propagation of electromagnetic waves in the atmosphere and meteorological conditions has been a topic of study. The present paper treats this problem in the context of an electromagnetic impulse in an abnormal stratification of the lower troposphere, where the stratification layer is called a surface duct. The
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An Electromagnetic Flowmeter for Transient Flow Studies
Review of Scientific Instruments, 1951An adaptation of the electromagnetic flowmeter has been made for the observation of transients in liquid flows. The device responds to flow transients of 0.001-sec duration, and is not affected by ambient pressure changes or the velocity profile of the liquid in the conduit. The effects of fluid resistivity on the instrument are noted.
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Electromagnetic transient simulation
1998This chapter discusses electromagnetic transient simulation. The simulation of electromagnetic transients associated with HVDC schemes is carried out to assess the nature and likely impact of overvoltages and currents, and their propagation throughout both the AC and DC systems.
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