A fabrication machine is disclosed herein. The electrical conductivity of the cellulose composite is at least 10 \u03bcScm at 25\xb0 C. Another embodiment may provide a method to update a time weight of a relation represented by an RDF graph, when a new reference timestamp is provided. A temperature sensor and temperature-compensation circuitry provide a temperature-compensation signal to the amplifier to at least partially offset the effects of temperature on the system. These systems and methods can also be beneficially used to produce a reduced set of audio objects for compatible object-based decoders with low computing resources. The first output is squared and accumulated N times in a second operation unit to obtain a second output.