Abstract: The presently-disclosed subject matter relates to an apparatus and methods for extruding a material. Embodiments of the apparatus comprise a chamber that includes an opening that faces at least a downstream side of the chamber, a die slideably received by the opening that includes a channel that is in fluid communication with the chamber, and a base portion that includes a fixture, the fixture being annular and configured to couple to a downstream side of the die. Embodiments of methods for extruding the material can include providing the apparatus, placing a material in an original state within the opening of the chamber, applying a force to an upstream side of the chamber to thereby push the material through the channel of the die, and collecting the material in a modified state downstream of the fixture.

Abstract: The invention relates to a system that generates energy from piezoelectric materials, applied mainly to supplying energy in traffic systems. The invention reduces the costs associated with the implementation of the piezoelectric systems on roads or vehicle and pedestrian transit systems, since in some cases they are manufactured in modules. It is characterized in that it is a system that includes a piezoelectric material, which generates electrical energy, a transmission network for said generated energy and a device for rectifying electrical current for the regulation and subsequent transmission thereof.