Effect of a powerful electromagnetic wave on the electrical conductivity of a semiconductor

1973 ◽  
Vol 16 (2) ◽  
pp. 227-229
Author(s):  
V. I. Puchkov ◽  
E. M. Epshtein
Keyword(s):  
Electrical Conductivity ◽  
Electromagnetic Wave ◽  
Powerful Electromagnetic Wave

Preparation of Waterborne Graphite Conductive Coating and Study of Its Electromagnetic Shielding Performance

2013 ◽  
Vol 313-314 ◽  
pp. 241-244 ◽  
Author(s):  
Wei Dong Wang ◽  
Qing Xu ◽  
Shuang Xi Zhou ◽  
Wen Wu Deng
Keyword(s):  
Electrical Conductivity ◽  
Electromagnetic Wave ◽  
Coupling Agent ◽  
Conductive Filler ◽  
Volume Resistivity ◽  
Acrylic Resin ◽  
Electromagnetic Shielding ◽  
Waterborne Coating ◽  
Frequency Range ◽  
Conductive Coating

A waterborne coating of waterborne acrylic resin based material was developed with different sizes of hybrid homemade graphite as conductive filler. Effects on its electrical conductivity and electromagnetic shielding performance were further analyzed and tested, such as conductive filler, coupling agent and iodine addition. The results showed that coating volume resistivity was about 0.05Ω·cm according to the optimal proportion, and attenuation of electromagnetic wave could reach more than 30dB within the frequency range of 1 MHz~1.5 GHz.

scholarly journals A comparison of radio-echo sounding data and electrical conductivity of the GRIP ice core

2000 ◽  
Vol 46 (154) ◽  
pp. 369-374 ◽  
Author(s):  
Ludwig Hempel ◽  
Franz Thyssen ◽  
Niels Gundestrup ◽  
Henrik B. Clausen ◽  
Heinz Miller
Keyword(s):  
Electrical Conductivity ◽  
Electromagnetic Wave ◽  
Wave Velocity ◽  
Ice Core ◽  
Volcanic Eruptions ◽  
Ice Cap ◽  
Radio Echo Sounding ◽  
Arctic Ice ◽  
Core Project ◽  
Echo Sounding

AbstractThe depth of reflecting layers in Arctic ice sheets has been determined by electromagnetic echo sounding, using a varying distance between transmitter and receiver to determine the radar wave velocity. The depth of the radar reflecting layers is compared with a profile of electrical conductivity measurements (ECMs) from the Greenland Ice Core Project (GRIP) ice core, in order to determine the velocity of the radar waves in the ice cap. By using several reflecting layers, it is possible to isolate the firn correction of the wave velocity and to estimate the accuracy of the calculated electromagnetic wave velocity. The measured firn correction is compared with the correction calculated from the density profile, and a comparison between the depth profiles of ECM and radar based on the corrected electromagnetic wave velocity is presented. This profile shows that acid layers, which originate from major volcanic eruptions, show up as reflecting radar horizons.

Interaction of Powerful Electromagnetic Wave with IntegratedP-I-NStructures

1998 ◽  
Vol 37 (Part 1, No. 8) ◽  
pp. 4332-4333 ◽  
Author(s):  
Svetlana Koshevaya ◽  
Edmundo Gutiérrez ◽  
Masashi Hayakawa ◽  
Margarita Tecpoyotl ◽  
Vladimir Grimalsky ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Powerful Electromagnetic Wave
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