Abstract: This disclosure relates to a vibroacoustic water system. The water system includes a reservoir configured to contain water and comprising a wall. The water system further includes four transducers mounted against the wall of the reservoir. The four transducers are configured to receive an input signal and to generate vibrations within water contained in the reservoir by vibrating the wall of the reservoir. The four transducers are mounted in a configuration such that, when the wall is partitioned into four sections, only a single transducer is mounted against each section of the wall and no other transducers are mounted against the wall.

Abstract: This disclosure relates to a vibroacoustic water system. The water system includes a reservoir configured to contain water and comprising a wall. The water system further includes four transducers mounted against the wall of the reservoir. The four transducers are configured to receive an input signal and to generate vibrations within water contained in the reservoir by vibrating the wall of the reservoir. The four transducers are mounted in a configuration such that, when the wall is partitioned into four sections, only a single transducer is mounted against each section of the wall and no other transducers are mounted against the wall.

Abstract: A non-blocking hot melt adhesive mass is prepared by (a) lining a rigid mold with a plastic film, said film being meltable together with the adhesive composition and blendable into said molten adhesive composition, and said mold being a heat sink or being in contact with a heat sink; (b) pouring molten hot melt adhesive into the lined mold; and (c) allowing the molten hot melt adhesive to solidify.