A seismic energy source includes at least a first and a second acoustic radiator operatively coupled to a non-linear medium proximate an upper limit of formations in the Earth’s subsurface. The method may include providing a device socket for connecting the set of top-side connections and the set of bottom-side connections to a tester. The pull-on garment comprises an absorbent main body and a ring-like elastic belt. Further, a rubber outsole may be molded with uneven treads andor discolored to give the rubber a degraded, worn appearance. Therefore, the coupling effect between adjacent bit lines as well as the coupling effect caused between adjacent storage node contact plugs and the coupling effect caused between the storage node contact plug and the bit line are controlled to improve characteristics of semiconductor devices.