A dispersion includes metallic, metal oxide, or metal precursor nanoparticles; a thermally cleavable polymeric dispersant; an optional dispersion medium; and a thermally cleavable agent. According to the disclosure, said reception methods have ways for holding each of said bases and said bases are designed to engage in said reception methods when the item of baggage is loaded into the container, such that said bases cooperate with said retainer methods to hold the item of baggage in a fixed opposition on said loading platform. The magnitude of bursts can also be controlled by artificially controlling the minimum values of the current rate and the sum of the error. In one aspect, the apparatus is run into the well on wireline which is capable of bearing the weight of the apparatus while supplying a source of electrical power to at least one downhole motor which operates at least one hydraulic pump.