70results about "Vessel movement reduction by wave damping" patented technology

A water craft has a body portion and at least two water engaging means. The body portion is at least partially suspended above the at least two water engaging means by a suspension system, and locating means are provided to connect each water engaging means to the body portion to permit substantially vertical and pitch direction motions of the water engaging means relative to the body. The suspension system includes at least one front pitch support ram and at least one back pitch support ram, the front and back pitch support rams providing support for at least a portion of the body relative to the at least two water engaging means.

Described here are compositions, methods and apparatus for biological and physical geoengineering. Disclosed are inorganic particles, prill, pucks, or floats for dispersal on a body of water, the compositions having several properties: 1) positive buoyancy, 2) a sustained-release matrix for delivery of iron, calcium, magnesium, zinc, copper, molybdenum, manganese, cobalt, boron, selenium, vanadium, chromium, nickel, sulfur, nitrogen, phosphorus, silicon, preferably as a combination thereof, at biologically efficacious levels, and synergically, 3) a light-reflective surface for increasing planetary albedo when dispersed over large surfaces. These compositions are found to A) increase yields for pelagic aquaculture, B) increase carbon sequestration, and C) provide immediate relief from global warming by directly increasing surface albedo and indirectly by increasing cloud nucleation activity. A preferred composition comprises a mixture of inorganic salts and binders (such as a glass or ceramic) effective for increasing the growth of primary aquatic producers such as coccolithophorids, diatoms, silicoflagellates, dinoflagellates, and microalgae (and higher trophic levels) in a sustained-release composition having a T1 / 2 of 0.5-3 years. To validate resultant carbon fixation and sequestration, a vertical spar buoy is provided. The buoy is designed to resist wave motion while supporting a stable long-term platform and submerged spaceframe with laser particle counters suspended below the 100 year horizon. Validation of exsolation energy credits, issuance of an associated financial instrument, and trading markets for those instruments are also described.

Described here are compositions, methods and apparatus for biological and physical geoengineering. A vertical spar buoy or spar buoy network is provided. The buoys or array of buoys are designed to resist wave motion while supporting an analytical platform at a depth such that particulate flux of fixed carbon is indicative of sequestration in the ocean's depths for one hundred years or more. Sedimentary deadfall through the 100-Year Horizon is measured to validate the flux of fixed carbon. Issuance of validated carbon sequestration certificates and monetization and trading of those certificates are described. Also provided are compositions and methods for increasing bioactive surface area and nutrient levels so as to promote carbon sequestration. Regeneration of carbon dioxide in the mesopelagic water column is reduced by providing complex habitat in the photic zone, thus ensuring higher complexity of trophic levels and sedimentary deadfall having larger particulate size.

An ocean thermal energy conversion assembly includes a ship having support tubes connected between a lower part and a top deck of the ship so as to define an open space. A passage is defined through the lower part and an annular connector is connected to a lower end of the passage. A plurality of rods extend from a top of the annular connector and are pivotably connected to the annular connection portion. A transmission pipe is connected to an underside of the annular connector. A hollow damper is connected to an outer periphery of the annular connector and an outer periphery of the hollow damper is engaged with an inner periphery of a bottom opening in a lower end of the passage. A top cover seals a top opening of the passage and has a wave-elimination way which communicates with holes in the top cover.

A water craft has a body portion and at least two water engaging means. The body portion is at least partially suspended above the at least two water engaging means by a suspension system, and locating means are provided to connect each water engaging means to the body portion to permit substantially vertical and pitch direction motions of the water engaging means relative to the body. The suspension system includes at least one front pitch support ram and at least one back pitch support ram, the front and back pitch support rams providing support for at least a portion of the body relative to the at least two water engaging means.

Platform for drilling after or production of hydrocarbons at sea, consisting of a semi-submersible platform body (2) which supports drilling and / or production equipment on its upper surface. The platform body (2) is designed as a vertical mainly flat bottomed cylinder which is provided with at least one peripheral circular cut-out (5, 30, 35, 36) in the lower section of the cylinder since the centre of buoyancy for the submerged section of the platform (1) is positioned lower than the centre of gravity of the platform.

The present invention relates to a semi-submersible offshore structure. More particularly, the invention relates to a low motion semi-submersible offshore structure that has improved stability in deep water. The low motion semi-submersible experiences relatively lesser heave, pitch and wave motions compared to conventional semi-submersibles when the semi-submersible is operating in harsh offshore environments.