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Electromagnetic response of a permeable inhomogeneous conducting sphere
Geoexploration, 1973Abstract Electromagnetic response of a two-layered spherical model to a dipolar field has been calculated considering the simultaneous influences of a permeable conducting cover, magnetic permeability contrast with the surrounding medium, and radial conductivity variation inside the core.
Janardan G. Negi +2 more
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Progress In Interpretation Of Transient Electromagnetic Data In Terms Of Subsurface Permeability
9th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 1996The relative importance of nonpoint-source (NPS) pollution in the degradation of water quality has increased in the last two decades due to the control of pollutant releases from point sources (Sharpley and Meyer 1994). The most important source of NPS pollutants are agriculture and urban areas, which impact water quality in rivers, lakes, estuaries ...
M. E. Everett +3 more
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Inclusion of Finite Permeability on Design and Optimization of an Electromagnetic Undulator
Chinese Physics Letters, 2014We derive an alternate analytical expression for the optimum dimensions of an electromagnetic undulator with a finite permeability lamination core. The analytical expressions are compared with earlier results under an infinite permeability approximation of the lamination core of the electromagnetic undulator design.
Vijay Huse +3 more
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Analysis of Electromagnetic Field on the Permeability Test of Concrete
2012 Asia-Pacific Power and Energy Engineering Conference, 2012The method of water pressure measuring permeability of concrete has a long test cycle, low efficiency, and doesn't apply to low permeability of concrete. The method based on electricity can overcome these shortcomings. This paper puts forward the method of streaming potential coefficient to measure the permeability of concrete, which is reasonable ...
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Transient electromagnetic response of a permeable nonuniformly conducting sphere
Journal of Applied Physics, 1975Quasistatic response of a nonuniformly conducting and magnetically permeable sphere to a step pulse is obtained. the effect of conductivity distribution pattern and permeability of the sphere on the transient response is examined in detail. The results show that the introduction of conductivity inhomogeneity has considerable effect on the observed ...
Saurabh K. Verma, Madhu S. Joshi
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Effect of negative permeability on negative permittivity in electromagnetic metamaterials
High Power Laser and Particle Beams, 2010For further understanding of the interactions between different materials in the electromagnetic metamaterials, the change characteristics of the effective permittivity of wire array embedded in a single negative permeability medium were analyzed theoretically.
黄勇军 Huang Yongjun +3 more
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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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An Electromagnetic Cantilever Generator with High-Permeability Magnetic Materials
2018 IEEE 13th Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2018This paper presented an electromagnetic cantilever generator (EMCG) of high energy density with high-permeability magnetic materials for harvesting ambient vibrational energy. We utilized a flexible cantilever connecting with a pair of magnets on the free end, and the coils with high-permeability magnetic materials are set right in front of the magnets.
Jiahong Lin +5 more
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Current Sheet Permeability in Electromagnetic Pulsed Plasma Thrusters
38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2002A case is made for the existence of permeability of current sheets in electromagneticpulsed plasma thrusters. Permeability refers to the leakage of plasma or neutral par-ticles behind the sheet and could cause a significant effect on the performance of thethruster. Analytical calculations are presented which demonstrate the mismatch be-tween experimental
John Berkery, Edgar Choueiri
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