Comparison of the Electromagnetic Properties of Lightning and EMP (Electromagnetic Pulse) -- Results of Recent Lightning Studies.

1983 ◽  
Author(s):  
J. E. Nanevicz ◽  
E. F. Vance ◽  
J. M. Hamm ◽  
D. M. Bubenik
Keyword(s):  
Electromagnetic Pulse ◽  
Electromagnetic Properties

Analysis on Electromagnetic Properties of Lapped Joints

2014 ◽  
Vol 940 ◽  
pp. 351-355
Author(s):  
Wen Tao Xia ◽  
Hui Li ◽  
Shi Quan Zhang
Keyword(s):  
Finite Difference ◽  
Metal Surface ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Electromagnetic Pulse ◽  
Electromagnetic Coupling ◽  
Electromagnetic Properties ◽  
Total Field ◽  
Magnetic Flows ◽  
Difference Time

There is little work on electromagnetic properties of lapped joints at the metal surface. In this paper, we improve the application of Finite-Difference Time-Domain (FDTD) to the total field border and the absorption conditions in the computed areas for electromagnetic coupling of lapped joints. The process of electromagnetic pulse penetrating into the coupling of lapped joints is simulated. Equivalent magnetic flows at the aperture of the joints are computed. Our work provides an algorithm that can be used to investigate the pattern of coupled resonance of lapped joints.

Facet Topography and Dislocation Structure as a Possible Source for Electrical Heterogeneity in [001] TILT Bicrystals of YBa2Cu3O7-δ

1996 ◽  
Vol 54 ◽  
pp. 338-339
Author(s):  
I-Fei Tsu ◽  
D.L. Kaiser ◽  
S.E. Babcock
Keyword(s):  
Grain Boundary ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Electromagnetic Properties ◽  
Length Scale ◽  
Density Values ◽  
Current Densities ◽  
Applied Fields ◽  
A Current

A current theme in the study of the critical current density behavior of YBa2Cu3O7-δ (YBCO) grain boundaries is that their electromagnetic properties are heterogeneous on various length scales ranging from 10s of microns to ˜ 1 Å. Recently, combined electromagnetic and TEM studies on four flux-grown bicrystals have demonstrated a direct correlation between the length scale of the boundaries’ saw-tooth facet configurations and the apparent length scale of the electrical heterogeneity. In that work, enhanced critical current densities are observed at applied fields where the facet period is commensurate with the spacing of the Abrikosov flux vortices which must be pinned if higher critical current density values are recorded. To understand the microstructural origin of the flux pinning, the grain boundary topography and grain boundary dislocation (GBD) network structure of [001] tilt YBCO bicrystals were studied by TEM and HRTEM.

Ultrawide measurement bench for measuring electromagnetic properties of materials in free space in a microwave range

2019 ◽  
pp. 55-59 ◽  
Author(s):  
V. N. Semenenko ◽  
◽  
V. A. Chistyaev ◽  
A. A. Politiko ◽  
K. M. Baskov ◽  
...  
Keyword(s):  
Free Space ◽  
Electromagnetic Properties ◽  
Microwave Range ◽  
Properties Of Materials

Aerial T1 EMP (Electromagnetic Pulse) Effects Assessment. Volume 1

1987 ◽  
Author(s):  
BOOZ-ALLEN AND HAMILTON INC BETHESDA MD
Keyword(s):  
Electromagnetic Pulse ◽  
Effects Assessment
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