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Effect of Electromagnetic Pulse Exposure on Brain Micro Vascular Permeability in Rats
Biomedical and Environmental Sciences, 2009To observe the effect of electromagnetic pulse (EMP) exposure on cerebral micro vascular permeability in rats.The whole-body of male Sprague-Dawley rats were exposed or sham exposed to 200 pulses or 400 pulses (1 Hz) of EMP at 200 kV/m. At 0.5, 1, 3, 6, and 12 h after EMP exposure, the permeability of cerebral micro vascular was detected by ...
Yong-Chun Zhou +7 more
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A novel EMT system based on TMR sensors for reconstruction of permeability distribution
Measurement science and technology, 2018A magnetic catalyst could be applied in a fluidized bed to improve the catalytic efficiency in the methanation and selective hydrogenation processes. Its distributions play an important role in accelerating the reactions. Electromagnetic tomography (EMT)
Chao Wang +5 more
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On the time-domain electromagnetic response of a conductive permeable sphere
Journal of Applied Geophysics, 2009The time-domain EM response of a conducting sphere has been subject of past studies with a particular goal of understanding the response of steel unexploded ordnance items. A change in formulas and parameter definition between authors has created inconsistency between published results and analytic formulas.
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Measurement science and technology, 2018
A review of the measurement methods of the basic electromagnetic parameters of gyromagnetic materials at microwave frequencies is presented. Measurement methods of the complex permittivity, the complex initial permeability, the intrinsic permeability ...
J. Krupka
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A review of the measurement methods of the basic electromagnetic parameters of gyromagnetic materials at microwave frequencies is presented. Measurement methods of the complex permittivity, the complex initial permeability, the intrinsic permeability ...
J. Krupka
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Simultaneous inversion of airborne electromagnetic data for resistivity and magnetic permeability
GEOPHYSICS, 1998Where the magnetic permeability of rock or soil exceeds that of free space, the effect on airborne electromagnetic systems is to produce a frequency‐independent shift in the in‐phase response of the system while altering the quadrature response only slightly.
Les P. Beard, Jonathan E. Nyquist
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Electromagnetic transient response of rotationally symmetric permeable conducting objects
1988 IEEE AP-S. International Symposium, Antennas and Propagation, 2003Low-frequency transient response is often used to detect or identify buried objects. At sufficiently low frequencies, the signal penetration in the ground is high and the air-earth interface has a negligible effect on the return response. The use of an exciting current loop also minimizes the ground conductivity effect.
Y. Das, Lotfollah Shafai, A. Sebak
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Electromagnetic Propagation in Homogeneous Media With Hermitian Permeability and Permittivity
Bell System Technical Journal, 1982The problem of electromagnetic radiation traveling in a general homogeneous, but anisotropic and gyrotropic, medium has been solved. The plane wave representation is used to convert Maxwell's equations into a general eigenproblem, which allows for tensor permeability and permittivity and for electric and magnetic gyrotropy.
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Quasistatic transient electromagnetic response of a permeable nonuniformly conducting cylinder
Canadian Journal of Physics, 1976The step-pulse response of a permeable and a radially nonuniformly conducting cylinder is obtained. Effects of the conductivity distribution pattern and the magnetic permeability on the transient response are examined in detail. It is found that: (i) the initial response (for t → 0) remains unaffected by both the inhomogeneity and the permeability of ...
S. K. Verma, M. S. Joshi
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Electromagnetic response of a covered inhomogeneous permeable conductor in time domain
pure and applied geophysics, 1971An initial value induction problem has been solved to examine the response of a massive sulphide ore body under conditions of common occurence. The generalized expression for the induced field due to a step-function dipolar field in the presence of a non-uniformly conducting permeable sphere surrounded by a finitely resistive overburden has been ...
Upendra Raval, Chandra P. Gupta
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