Nondestructive identification of material properties of fibre concrete: A time-harmonic electromagnetic field

2016 ◽  
Author(s):  
L. Hobst ◽  
P. Bílek
Keyword(s):  
Electromagnetic Field ◽  
Material Properties ◽  
Time Harmonic ◽  
Fibre Concrete ◽  
Nondestructive Identification ◽  
Harmonic Electromagnetic Field

scholarly journals Electromagnetic time-harmonic and static field polygonal rotator with homogeneous materials

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Weijie Gao ◽  
Huaping Wang ◽  
Faxin Yu
Keyword(s):  
Electromagnetic Field ◽  
Direct Current ◽  
Central Region ◽  
Multilayered Structure ◽  
Static Field ◽  
Magnetostatic Field ◽  
Field Case ◽  
Harmonic Field ◽  
Time Harmonic ◽  
Harmonic Electromagnetic Field

Abstract We propose a scheme of designing polygonal rotator with homogenous materials by using linear coordinate transformation. Our strategy is available for both time-harmonic electromagnetic field case and static field case. In particular, we found that only one anisotropic material is needed in static field case, and the density of field in the central region can be altered to be denser or sparser, or stay the same. The magnetostatic field rotator can be realized by multilayered structure composed of ferromagnetic materials and superconductor, and the direct current rotator can be realized by metals with different conductivity. Numerical results verify the effectiveness of our strategy in both time-harmonic field case and static field case.

Transformation of a time‐harmonic electromagnetic field in a suddenly created two‐resonance Lorentz medium

1993 ◽  
Vol 74 (11) ◽  
pp. 6477-6481
Author(s):  
Boz̆idar Stanić ◽  
Zorana Jelenak ◽  
Aleksandar Jelenak
Keyword(s):  
Electromagnetic Field ◽  
Time Harmonic ◽  
Harmonic Electromagnetic Field
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