The invention pertains to the use of an easy-to-clean soft fiber-coated material on the underwater surface of structures to mimic mammal pelage and as such reducing residual drag, wherein said material comprises or consists of fibers having an average fiber length between 0.3 and 4 mm, and an average fiber thickness between 5 and 80 μm. The underwater surface of structure is preferably the hull of a movable or moving vessel, or the underwater part of a static structure such as offshore wind monopiles and off-shore rigs. In some embodiments, the invention pertains to the reduction of fuel consumption of a nautical vessel passing through water.

A bearing device of a floating power station includes a supporting component and operation and maintenance passages formed by multiple operation and maintenance floating bodies arranged in sequence. Two adjacent rows of the operation and maintenance passages are connected by the supporting component, and an electrical device mounting position for mounting an electrical device is provided on the supporting component. In the bearing device for the floating power station provided according to the present application, the two adjacent rows of the operation and maintenance passages are connected by the supporting component, and the electrical device is mounted on the electrical device mounting position of the supporting component, that is, the mounting of the electrical device is not affected by a space between the two adjacent operation and maintenance passages, thereby the versatility of the bearing device provided according to the present application is improved.

A section of (cured and non-liquid) textured foam includes at least a portion of a foam-upper-surface that substantially resembles a look of a human fingerprint for a purpose of providing enhanced grip traction between the at least the portion of the foam-upper-surface of the textured foam and a hand or a foot of a user of the textured foam. Disposed opposite of the foam-upper-surface of the textured foam may be an adhesive backing for attachment to a diverse variety of exterior surfaces where improved grip traction is desired. Systems and methods for making such textured foam that substantially resembles a look of a human fingerprint may utilize a heating means and a compression means. Such textured foam that resembles the look of a human fingerprint may be located on an upper surface of a vehicle and/or on an exterior surface of a handle to minimize against slippage.

Woven UHMWPE fabric stretches in the bias direction to such an extent that it is unsuitable for many potential applications and is porous, allowing air and water transmission. A composite UHMWPE material includes a single ply of high tenacity woven UHMWPE fabric having warp fibers in a first direction and weft fibers in a second direction orthogonal to the first direction. The UHMWPE fabric has first face and a second face. A stretch resisting axially oriented fusion layer is fused to at least one of the first face or the second face of the UHMWPE fabric with an axis aligned parallel to at least one of the UHMWPE fabric warp and weft axes, such that the stretch resisting fusion layer increases fabric tensile strength and inhibits bias stretch of the UHMWPE fabric, and renders the UHMWPE woven fabric air and water impermeable.

The disclosure concerns a thin light weight essentially water impervious UV resistant non-abrasive traction imparting surfacing material for marine applications adhered to a solid non-elastomeric structural surface and a process for production of it. The surfacing material is a between about 2 and 4 mm thick flexible cured layer of a trowelable adhesive sealant into which were deeply embedded sufficient elastomeric granules with a maximum dimension between about 0.5 and 4 mm to cover the surface of the adhesive sealant layer before it cured. It is prepared by applying an evenly distributed layer of the adhesive sealant onto the structural surface with a trowel or similar means. Then elastomeric granules with a maximum dimension between about 0.5 and 4 mm are distributed on said layer to essentially cover the surface and then deeply embedded into the adhesive sealant layer. A rolling pin may be used to embed the granules.

The invention relates to a small-sized shipbuilding. In particular, to a stern plug to be inserted into a stern portion of an inflatable bottom of a water jet boat, the plug is made such that it follows a shape of a front portion of the bottom of the boat, based on a hollow volume that is open at one base and comprises a closed second base and a lateral surface, the lateral surface is arranged along an outer contour of the closed base, and the closed base is made such that it follows a shape of the front portion of the bottom, and the lateral surface is made in a form of shelves, where an upper shelf is made straight, wherein the plug is made in a form of a monolithic cast piece of an elastic shape-retaining material, where the open base has a mesh cellular structure, where a lower shelf of the bottom is made straight, and plate-shaped guides for fixing to the boat are mounted on the shelves.

An apparatus including a fine-array porous material with a specific surface area higher than 10/mm, the specific surface area depending on different pore sizes, wherein the porous material comprises a plurality of pores having a substantially uniform size with a variation of less than about 20%, wherein the size is larger than about 100 nm and smaller than about 10 cm. The high-buoyancy apparatus can be part of a water vehicle such as a boat or a submarine, and the fine-array porous material is configured to reduce friction and/or control buoyancy. A conduit is also provided employing a fine-array porous material to reduce friction and/or control buoyancy. A garment is provided taking advantage of water repellant and/or UV/IR reflection properties of the fine-array porous material.

An article of manufacture including molded-in cavities that permit the installation of recessed trolling motor foot pedals and seat pedestal bases in such a manner that allows water to drain away from thereof so as to prevent the accumulation of standing water. The article of manufacture includes a body, wherein the body is a plastic molded boat hull comprised of numerous molded-in cavities and molded-in features to create an interior layout that is comparable to a conventional boat built of aluminum or fiber reinforced plastic.

Example implementations include a system and method of using plastic from bodies of water and creating a floating platform by collecting plastic from a body of water, cleaning the collected plastic, melting and compacting the plastic, molding a plurality of hexagonal blocks from the compacted plastic, stacking the plurality of hexagonal blocks, wherein a system of springs and an energy storage device is provided between each of the plurality of hexagonal blocks, and coating the stacked blocks with a non-toxic material. Through the use of various onboard functionalities, energy may be generated to regulate temperature and provide electricity, oxygen may be supplied, and water may be purified.

Disclosed is a friction-reducing and anti-wear composite material for a wading kinematic pair and a method of preparing the same. The friction-reducing and anti-wear composite material is prepared from carbon fiber (CF) among inorganic fillers, polyimide (PI) and polyether ether ketone (PEEK). These three materials are wet-mixed, dried and placed in a mold followed by curing by a heat press. The cured product is cooled and demolded to obtain the CF/PI/PEEK friction-reducing and anti-wear composite material for a wading kinematic pair. Tribological properties of the PEEK material are enhanced due to synergistic effect arising from hybrid organic-inorganic filling. The friction-reducing and anti-wear composite material provided in the invention has significantly reduced friction coefficient and wear volume loss under the seawater environment.