A laboratory scale model for the study o
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Irene C. Peden; John Brew
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Article
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1995
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Elsevier Science
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English
โ 706 KB
Cross-borehole electromagnetic probing in the VHF band has been used successfully for locating underground tunnels and other subsurface structures, even when these are deeply buried and devoid of high contrast reflecting materials. Full scale studies of available and developmental field techniques c