Results 241 to 250 of about 39,872 (298)
Some of the next articles are maybe not open access.
Transient electromagnetic soundings
SEG Technical Program Expanded Abstracts 1982, 1982FIG 5. Response of 2, and 8, remaining after host rock response of Figure 4 is subtracted from measured response. Remainder is The resistivity layering of ground can be obtained by measuring the transient fields of nongrounded loops or grounded line transmitters carrying current step functions.
Grigory Rozenberg, Pieter Hoekstra
openaire +1 more source
Transient electromagnetic field
European Journal of Physics, 1997The transient and asymptotic solution of the Maxwell equations for a system of two bidimensional particles of opposite charges is studied. Initially the particles are at rest at the same point, then one remains motionless while the other drifts at constant velocity.
C Geronimi +5 more
openaire +1 more source
Transient Electromagnetic Fields
Electronics and Power, 1976Propagation and diffraction of transient fields in non-dispersive and dispersive media.- Integral equation methods for transient scattering.- The singularity expansion method.- Radiation and reception of transients by linear antennas.- A pulsed dipole in the earth.
openaire +2 more sources
Electromagnetic Transients and Modelling
2019Transients are the norms and the musts of the energy conversion in power electronics systems. Previous research is focused on the large-timescale electromagnetic transient processes, while neglecting short-timescale switching processes and stray parameters. When failure mechanisms of components and the enhancement of the power-conversion capability are
Zhengming Zhao +3 more
openaire +1 more source
Quantum Electromagnetic Transients Program
IEEE Transactions on Power Systems, 2021This letter devises a quantum electromagnetic transients program (QEMTP) which is the first attempt to tackle the computational challenges in solving EMTP through quantum computing. The main contributions lie in: (1) A quantum-enabled EMTP formulation with Dommel's model encoded in quantum states; 2) An Harrow-Hassidim-Lloyd (HHL)-based QEMTP to solve ...
Yifan Zhou, Fei Feng, Peng Zhang
openaire +1 more source
Electromagnetic Interference Prediction in Transient Electromagnetic Environment
2007 International Symposium on Electromagnetic Compatibility, 2007This paper presents an approach to predict the interference effects of a transient electromagnetic environment (EME) caused by an aggregate of wideband transmitters on a traditional narrowband victim. Due to the constraint of the narrowband receiver, it is sufficient to evaluate such wideband parameters of transmitter as effective isotropically ...
Yu Zhi-yong, Wang Jiang-feng
openaire +1 more source
Geophysical Prospecting, 2013
ABSTRACTLake 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 very important for
L. Mollidor +3 more
openaire +1 more source
ABSTRACTLake 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 very important for
L. Mollidor +3 more
openaire +1 more source
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
openaire +2 more sources
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
openaire +1 more source
Imaging And Inversion Of Transient Electromagnetic Soundings
8th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 1995The success of geophysical investigations associated with environmental problems is to a large extent determined by the density of the measurements and the quality of the interpretations. Many case studies of mapping of raw materials and hydrogeological investigations have confirmed that dense measurements with traditional methods of geoelectrical and ...
openaire +1 more source