Abstract: This disclosure pertains to the use of black liquors from kraft pulp mills as a source of catalysts for the thermochemical conversion of organic matter feedstocks to bio oils.

Abstract: This invention concerns a distributed stereo audio system. Distributed stereo audio systems are used to provide stereo sound to several rooms or areas from a single source of signal. The system includes two or more speakers for the broadcast of stereo audio signals; a source of stereo audio signals; a stereo amplifier to amplify stereo audio signals and drive the speakers; and a mains operated electrical power supply to provide power to the amplifier. The amplifier is located in the same room as the speakers, and remote from the signal source and power supply. The amplifier is connected to the signal source and power supply by means of a category 5 four pair twisted cable which provides, in respective twisted pairs, right channel audio signals from the signal source to the amplifier, left channel audio from the signal source to the amplifier, DC power from the power supply to the amplifier, and control signals from the amplifier to the signal source.

Abstract: A distributed stereo system includes two (or more) speakers; a source of audio signals; an amplifier in the same room as the speakers that drives the speakers; and a mains-operated electrical power supply to power the amplifier. The amplifier is remote from the signal source and power supply and is connected to the signal source and power supply by means of a category 5, four-pair twisted cable or similar, which provides right and left channel audio signals from the signal source to the amplifier and DC power from the power supply to the amplifier. A distributed intercom system features a bi-directional intercom hub; a mains-operated power supply; and two or more remote modules each having an amplifier and speaker. The modules are connected to the hub via category 5 cable or similar, which carries audio signals between the hub and the modules and power from the supply to the modules.

Abstract: An annealing mold and fiber retaining device includes a fiber holding plate having fiber channels and an annealing insert. Retainers are provided for attachment to the plate to retain fibers in the channels. After annealing, the annealing insert is replaced by a packaging insert. The fiber holding plate is mounted between a support plate and a cover plate. The mounted plates include a coextensive current conductor port and the plates are mounted in a housing which includes vibration mounts for isolating the plates from vibration within the housing.