Results 221 to 230 of about 311,610 (264)
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THE NEGATIVE PERMITTIVITY AND PERMEABILITY CHARACTERISTICS OF TRIANGULAR ELECTROMAGNETIC RESONATORS
International Journal of Modern Physics B, 2011In this paper, the triangular electromagnetic resonators (TERs) is introduced and investigated. The electric mode at lower frequency and magnetic mode at higher frequency, originating from coupling to the electric field and magnetic field, are validated through the measurement in parallel-plate waveguide system, parameter retrieval algorithm and ...
C. ZHU, L. LI, C. H. LIANG
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Electromagnetic Waves in Media With Correlated Inhomogeneity of Permittivity and Permeability
Journal of Applied Spectroscopy, 2014The propagation of electromagnetic waves is examined in inhomogeneous media where the product of the permittivity and permeability is independent of position. A plasma-like frequency dispersion of the refractive index in these media is predicted. It is established that there is a cutoff frequency below which electromagnetic waves cannot be excited in ...
A. N. Serdyukov +2 more
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Flexible Antenna on High Permeability Substrate for Electromagnetic Head Imaging Systems
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018The performance assessment and analysis of a wearable microstrip antenna based on high permeability material substrate in head imaging system is presented. The antenna is designed on polymer RTV6166-iron oxide substrate with relative permittivity and relative permeability of 3 and 5, respectively.
Alqadami, Abdulrahman S. M. +2 more
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Effect of Electromagnetic Pulse Exposure on Permeability of Blood-testicle Barrier in Mice
Biomedical and Environmental Sciences, 2008To study the effect of electromagnetic pulse (EMP) exposure on the permeability of blood-testicle barrier (BTB) in mice.Adult male BALB/c mice were exposed to EMP at 200 kV/m for 200 pulses with 2 seconds interval. The mice were injected with 2% Evans Blue solution through caudal vein at different time points after exposure, and the permeability of BTB
Xiao-Wu, Wang +6 more
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Electromagnetic Models for UXO Detection and Classification in Permeable Soils
2008Abstract : Support Vector Machine (SVM) and neural networks (NN), are applied to classifying metallic objects according to size using the expansion coefficients of their magneto-quasistatic (MQS) response in the spheroidal coordinate system. The classified objects include homogeneous spheroids and composite metallic assemblages meant to resemble ...
Bae-Ian Wu +3 more
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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 ...
Gui-Rong, Ding +7 more
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IEEE Transactions on Geoscience and Remote Sensing, 2004
We use a hybrid model including asymptotic expressions of the spheroidal wave functions (SWFs) to obtain a reliable broadband solution for the electromagnetic induction (EMI) response from a conducting and permeable spheroid. We obtain this broadband response, valid in the magnetoquasistatic regime from zero to hundreds of kilohertz, by combining three
Benjamin E. Barrowes +4 more
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We use a hybrid model including asymptotic expressions of the spheroidal wave functions (SWFs) to obtain a reliable broadband solution for the electromagnetic induction (EMI) response from a conducting and permeable spheroid. We obtain this broadband response, valid in the magnetoquasistatic regime from zero to hundreds of kilohertz, by combining three
Benjamin E. Barrowes +4 more
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RF thin-film permeability measurements in a travelling electromagnetic field
IEEE International Digest of Technical Papers on Magnetics Conference, 2003Summary form only given. Thin film permeability measurements in the RF range gives useful information for materials science and modem IT device developments including cellular phone (0.8-2GHz) and bluetooth devices (2.45GHz). We propose a new permeameter utilizing traveling electromagnetic field mode and a shielded-loop type planar pickup coil.
Y. Miyazawa +3 more
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ELECTROMAGNETIC PERMEABILITY FORECAST BEYOND BOREHOLES
Геофизические исследования, 2022openaire +1 more source
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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