Abstract: A composite structure comprises a copper layer and first and second graphene layers sandwiching the copper layer, wherein the composite structure provides electron-path tunnels between the copper layer and the first and second graphene layers. The electron-path tunnels may enhance the electrical conductivity. A multilayer composite structure comprises a first copper layer, a first graphene layer on the first copper layer, a second graphene layer on the first graphene layer, and a second copper layer on the second graphene layer.

Abstract: An exemplary embodiment of an aquaculture cage of the invention has a buoyant structure configured to float on a water surface, an aquaculture net portion made of a material that is corrodible by salt water and attached to the buoyant structure for positioning a top of the aquaculture net portion at a distance below the water surface, where the aquaculture net portion encloses an interior of the cage from the top of the aquaculture net portion to a bottom of the aquaculture net portion to retain marine life, and an upper enclosure portion enclosing space above the aquaculture net portion for preventing the marine life from escaping over the top of the aquaculture net portion, where the upper enclosure portion comprises a material that is substantially non-corrodible by salt water.

Abstract: A flexible barrier for preventing the spread of fire through areas of a building includes a layer of inorganic fibrous material sandwiched between two panels of material having sufficiently high thermal conductivity to diffuse and dissipate heat without burning when exposed to a flame. The panels and blanket are joined together with a filament having sufficiently high tensile strength and resistance to heat to maintain the panels and layers in laminar relation. Plural barrier sections may be attached together with the filament at a factory or at the installation The laminar panel and blanket combination is lightweight, easily cut and installed, and advantageously retards the passage of heat when placed across an opening.