نتایج جستجو برای: electromagnetic

تعداد نتایج: 76522  

This paper describes the application of approximate methods to invert airborne magnetic data as well as helicopter-borne frequency domain electromagnetic data in order to retrieve a joint model of magnetic susceptibility and electrical resistivity. The study area located in Semnan province of Iran consists of an arc-shaped porphyry andesite covered by sedimentary units which may have potential ...

Journal: :Annali dell'Istituto superiore di sanita 2007
Gabriella Tognola Marta Parazzini Federica Sibella Alessia Paglialonga Paolo Ravazzani

This paper reviews the most common sources of electromagnetic interference (EMI) with cochlear implants (CI). Particular attention will be given to the description of the mechanisms of electromagnetic interaction with CI; main disturbances caused to CI; relevant scientific investigations; and existing requirements and tests for electromagnetic compatibility (EMC) immunity applicable to CI.

2007
Michael Aron Erwan Kerrien Yves Laprie

This paper describes a new method for coupling ultrasound images with tree-dimensional electromagnetic data, to recover larger parts of the tongue during speech production. The electromagnetic data is superimposed on ultrasound images after spatial and temporal calibration. Successful fusion results are presented on various speech sequences. A complete setup for evaluation of the electromagneti...

2009
T. Melamed

The present contribution is concern with an exact framebased expansion of planar initial time-harmonic electromagnetic fields. The propagating field is described as a discrete superposition of tilted and shifted electromagnetic beam waveobjects over the frame spatial-spectral lattice. Explicit asymptotic expressions for the electromagnetic Gaussian beam propagators are obtained for the commonly...

1978
Kent Chamberlin

Electromagnetic penetration through an aperture in an infinite, planar screen separating two half spaces of different electromagnetic properties, " American Geophysical Union, pp. 349-357, 1976. (also in the book Moment Methods in Antennas and Scattering. [7] D. T. Auckland and R. F. Hanington, " Electromagnetic transmission through a filled slit in a conducting plane of finite thickness, TE ca...

2009
Gennadi Afinogenov Anna Afinogenova Andrey Kalinin

Available data allow assuming the presence of stimulation of reparative processes under influence of low-intensity electromagnetic field, commensurable with a magnetic field of the Earth. Research of effects of low-intensity electromagnetic fields on fibroblast proliferative activity in human lungs in cell culture was performed.The influence of a constant electromagnetic field, an alternating e...

Journal: :journal of mining and environment 2013
maysam abedi gholam-hossain norouzi nader fathianpour ali gholami

this paper describes the application of approximate methods to invert airborne magnetic data as well as helicopter-borne frequency domain electromagnetic data in order to retrieve a joint model of magnetic susceptibility and electrical resistivity. the study area located in semnan province of iran consists of an arc-shaped porphyry andesite covered by sedimentary units which may have potential ...

2015
Qinghua HUANG Hengxin REN Dan ZHANG Y. John CHEN

Recently developed numerical simulation technique can simulate the coupled seismic and electromagnetic signals for a double couple point source or a finite fault planar source. Besides the source effect, the simulation results showed that both medium structure and medium property could affect the coupled seismic and electromagnetic signals. The waveform of coupled signals for a layered structur...

2015
Xiaotao Ren Romain Corcolle Laurent Daniel

Soft magnetic composites (SMC) are a promising alternative to laminated steel in many Electrical Engineering applications. This is largely owing to their low level of eddy current losses. The electromagnetic behavior of SMC in electromagnetic devices cannot be easily predicted using standard numerical techniques such as the finite element method, mostly due to the computational cost required to...

1997
Merav Opher Reuven Opher

It is generally assumed that the electromagnetic spectrum in the primordial universe was a blackbody spectrum in vacuum. We derive the electromagnetic spectrum based on the fluctuation-dissipation theorem that describes the electromagnetic fluctuations in a plasma. Our description includes thermal and collisional effects in a plasma. The electromagnetic spectrum obtained differs from a blackbod...

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