This definition appears very rarely
See other meanings of GPEN
Samples in periodicals archive:
But US ground penetration bombs can easily reach the Natanz centrifuge hall.
Defence Research and Development Organisation is providing unmanned aerial vehicles (UAVs), micro air vehicles (MAVs), ground penetration radars, foliage penetration radars and other weapons to the paramilitary forces and the state police forces to fight against the Maoists and other extremists.
The Minestalker uses ground penetration radar to probe for potential mines while the Rotary Mine Comb (RMC), resembling a bulldozer with a plough attached to the front, moves along the road gently unearthing objects.
Tayside Police are using the ground penetration system - identical to the kind on TV archaeology show Time Team - at a field just yards from Adam's house in Errol, Perthshire.
It includes papers and case studies on field evaluation studies; rehabilitation techniques; modeling and analysis techniques; airfield and highway flexible rigid pavement design; pavement evaluation--for example, the utilization of a falling weight deflectometer, roughness measurements, and ground penetration radar; subgrade stabilization techniques; pavement material design and characterization; pavement management systems; construction approaches and quality control and assurance; and field instrumentation.
They are being taught by site director Mike Emery and his colleagues how to: p Identify burial plots by reading the signs of previously disturbed ground p Use ground penetration radar to show them how far they can dig without disturbing a body p Follow rules when lifting a skeleton.
They are being taught by site director Mike Emery and his colleagues how to identify burial plots by reading the signs of disturbed ground, use ground penetration radar to show how far to dig without disturbing a body and how to lift a skeleton
Calibration of ground penetration radar and calculation of attenuation and dielectric permittivity versus depth.