Abstract: Watercraft devices, systems, and methods are disclosed for reducing hydrodynamic drag by introducing air into water flowing along a watercraft during movement. In some embodiments, a watercraft includes a deck, a hull, and a plurality of holes extending from the deck to a lower surface of the hull. During movement of the watercraft, water flowing beneath the hull induces air to be drawn through the holes and released beneath the hull. The released air is carried by water flowing along the hull to establish and maintain an air-water interface along a region of the hull, reducing drag. In other embodiments, air is introduced along submerged components such as hydrofoils via passages or masts, forming air-water interfaces that reduce drag and improve lift efficiency. Passive and active air-introduction systems are disclosed for use with surfboards, boats, hydrofoil watercraft, and similar watercraft.

Abstract: Methods for screening compounds for their solubility and their solution stability in a variety of diverse formulations and sets of diverse formulations useful for screening compounds for their solubility and their solution stability.

Abstract: An extension and retraction system for a multiple section, telescoping boom apparatus of the type utilized for raising and lowering a work platform or basket. The innermost longitudinally movable section is carried by a longitudinally inextensible or base section, and is extensible and retractable relative to the base section by a dual cylinder assembly. Extension chains trained about sprockets carried by certain of the sections automatically extend the other extensible sections upon extension by the cylinder assembly of the innermost longitudinally movable section. Automatic and positive retraction of such sections is accomplished by retraction chains operating in response to retraction of the innermost section. The cylinders of the dual cylinder assembly are pivotally coupled at a pivot mount longitudinally slidable along a guideway carried by the base section to thereby accommodate deflections of the boom sections located between the opposite extremities of the dual cylinder assembly.