Results 201 to 210 of about 20,448 (261)

Float‐transient electromagnetic method: in‐loop transient electromagnetic measurements on Lake Holzmaar, Germany

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
exaly   +2 more sources

Electromagnetic Transients

2021
This chapter aims at presenting the current international standards and the recent bibliography regarding the transient phenomena associated with space systems, with emphasis on the EMC requirements. The first section of the chapter focuses on the description of the physical mechanisms causing transient electromagnetic phenomena in space.
Eleni P. Nicolopoulou   +2 more
openaire   +1 more source

Firefly Algorithm for Transient Electromagnetic Inversion

IEEE Transactions on Geoscience and Remote Sensing, 2022
Transient electromagnetic (TEM) method is widely used in regional mineral resources surveys, environmental engineering geological surveys and shallow surface geophysical exploration, and so on. However, interpretation and inversion of TEM data is a complicated process.
Zhengyu Xu, Zhihong Fu, Nengyi Fu
openaire   +1 more source

Transient electromagnetic soundings

SEG Technical Program Expanded Abstracts 1982, 1982
FIG 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 Fields

Electronics and Power, 1976
Propagation 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

Computation of electromagnetic transients

Proceedings of the IEEE, 1974
Switching operations, faults, and other disturbances produce surges on transmission lines and oscillations in transformer and generator windings. Such electromagnetic transients have primarily been studied with transient network analyzers since the late 1930's. In recent years, digital computer programs have been de-.
H.W. Dommel, W.S. Meyer
openaire   +1 more source

Electromagnetic Transients and Modelling

2019
Transients 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

Transient electromagnetic field

European Journal of Physics, 1997
The 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

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