Abstract: A system and associated method are described. The system includes a controlled power supply for generating electrical pulses for a plasma discharge source. The controlled power supply includes an output pulse rail, a direct current power source, and energy storage capacitors, coupled to the direct current power source. The energy storage capacitors are configured to supply: a main negative rail voltage, a positive kick rail voltage, and at least one intermediate rail voltage. A controlled pulse power transistor group includes: a plurality of transistors interposed between the energy storage capacitors and the output pulse rail, and a transmission control configured to control power transmission. The transmission control is configured to specify a positive kick pulse waveform defined by user-specified parameters that configure operation of the plurality of transistors to control timing and voltage of the positive kick rail voltage and the at least one intermediate rail voltage.

Abstract: The invention relates to a liner comprising a flexible material (1) with means adapted to increase the surface area thereof, and adhesive/sealant (2) and a release tape (3) with reinforcing strips (4). An example of a means of adapting the surface, whereby strips of adhesive/sealant (5) are applied to the release tape and then the flexible material (1) applied and compacted to form the profile. The liner is then formed into a tube. It may be folded into a cruciform shape. An end elevational view of a folded liner in a pipe (6) prior to application of the pipe.