Abstract: Described is a device for lifting an object from a deck of a vessel subject to movements in a heave direction. The device comprises a support surface (6a) for the object provided at a first height (11) in the heave direction relative to the deck. A lifting crane (5) is configured to take up the object from the support surface (6a) at a lifting point thereof at a lifting speed. An actuator system (16) is configured to lower the support surface (6a) relative to the deck at the instant in time at which the object is lifted from the surface to a second height in the heave direction at a lowering speed. A method using the device is also described.

Abstract: The present disclosure a temperature-resistant and salt-resistant modified nano-graphite dispersed particle gel system with a strong self-growth effect.

Abstract: The present disclosure a temperature-resistant and salt-resistant modified nano-graphite dispersed particle gel system with a strong self-growth effect.

Abstract: Provided is a floating foundation for supporting a wind power generation system including a stabilized power cable. In one embodiment, the floating foundation includes a column extending upwardly and couplable at a top end thereof to a base of the wind turbine, at least one power cable for exporting power generated from the wind turbine to another floating foundation or to an offshore/onshore station, and a plurality of buoyancy modules disposed along the at least one power cable. Power cables between a plurality of floating foundations and/or power station may be supported by buoyant modules such that the power cable is located in an optimal submergence range of the water body in which the floating foundations are deployed.

Abstract: Described herein is a hoisting block for a crane. The hoisting block includes an engaging element such as a load hook, to which a lifting tool such as a sling or a hoisting frame can be coupled. The hoisting block is provided with winches, outgoing winch cables of which are configured to carry the lifting tool to the engaging element and couple it to the engaging element. Also described herein is a crane provided with the hoisting block. The hoisting block can be applied for carrying a lifting tool to an engaging element and coupling it to the load-bearing means, or for stabilizing an engaging element relative to a support structure.

Abstract: In a first aspect of the invention there is provided a method of manufacturing a wind turbine blade. The method comprises providing a mould for a shell of the wind turbine blade, the mould extending in a longitudinal direction from a root end to a tip end; providing a plurality of elongated root inserts; providing a root plate with a plurality of arcuately arranged connection points; at the connection points, connecting the root inserts to the root plate, such that the connected root inserts jointly form a contour of a portion of a root section of the wind turbine blade; and positioning the root plate relative to the mould in order to place the contour formed by the root inserts at least partially into the mould. The method further comprises providing a spacer having a decreasing thickness, and the connecting of the root inserts to the root plate comprises providing the spacer between the root inserts and the root plate.

Abstract: Example lighting systems may include a group charging station and a lighting device. Example group charging stations may include a plurality of power devices operable to power the lighting device, the plurality of power devices comprising a first power device and a second power device, the first power device comprising a first plurality of electrical contacts, the second power device comprising a second plurality of electrical contacts, and a group charging platform operable to concurrently charge the plurality of power devices.

Abstract: An integrated logging instrument for coring and sampling includes a downhole main body and a ground system. The downhole main body is connected with the ground system through a long cable. The downhole main body includes a coring and sampling mechanism, a power mechanism and an energy storage mechanism. The coring and sampling mechanism includes a coring assembly for drilling cores and a pushing and setting assembly for downhole fixation. The power mechanism is arranged at an upper end of the coring and sampling mechanism, and includes a motor, a piston structure and a pump body. The piston structure and the pump body are respectively arranged at two output ends of the motor. The piston structure is arranged to provide suction power. The pump body is arranged to provide hydraulic power. The energy storage mechanism is arranged at a lower end of the coring and sampling mechanism.

Abstract: A method for assembling a floating offshore wind farm, including: arranging at least N floating structures on a body of water; providing mast sections for assembling at least N masts; providing turbines and blades for at least N wind turbines; selecting at least one floating structure referred to as the mounting floating structure, the other floating structures being receiving floating structures; fastening a lifting device to the mounting floating structure; moving the mounting floating structure up to a receiving floating structure, and using the lifting device to lift and mount at least one constituent element of a wind turbine on the receiving floating structure; repeating the preceding step for the other receiving floating structures.

Abstract: The application relates to a method for assessing the load bearing capacity of an inserted pile, including: applying, by a vibrator device arranged at the inserted pile, the inserted pile with a measuring pulse string during at least one vibration time period, detecting, by at least one detection module, motion data of the inserted pile caused by the measuring pulse string during a measuring time period, determining at least one downward motion data set from the detected motion data; and evaluating the downward motion data set such that a load bearing capacity criterion is determined.

Abstract: Method for manufacturing a connection between two tube segments of a tower-like structure, in particular a wind power plant, in which a first tube segment is pushed into a second tube segment at the end face and an annular space is formed between the tube segments, two at least partially circumferential joining elements spaced apart from one another in the longitudinal direction of the tube segments are arranged in the annular space, the joining elements being arranged on an outer wall and/or on an inner wall of one of the tube segments, the tube segments are coupled together via the joining elements, and a mechanical parameter of the mechanical coupling between the tube segments is detected via at least one sensor on at least one of the tube segments, the annular gap being filled with casting compound after initial installation of the structure based on the mechanical parameter.

Abstract: A directional guide for a spreader bar includes a body extending along a longitudinal axis. The body includes a first fin and a second fin spaced apart from the first fin. The first and second fins are coupled to the body and are configured to control a vertical position of the body in water through which the body is moving. Grooves are formed in the body. The grooves include a first groove extending along the longitudinal axis of the body, a second groove crossing the first groove and a third groove crossing the first groove. A keel is rotatably coupled to the body. The keel is configured to rotate between the first groove, the second groove, and the third groove. The keel is configured to control a lateral position of the body in water through which the body is moving.

Abstract: Delivery of a high volume of floating systems for wind turbines can make floating wind economic. The delivery can involve the standard design of sections, such as “tubes” or “cans,” comprising a rolled plate and ring stiffeners. The delivery can then involve the transportation of the sections in block to an assembly site that is closer to the planned installation point. The sections are used to manufacture floating vessels, such as semi-submersibles, buoyant towers, and/or spars, at the assembly site, which can include a barge with cranes. For semi-submersibles, the delivery can then involve the installation of the Tower, the nacelle, and blades using the barge cranes. Alternatively, for spars or buoyant towers, the nacelle and blades can be installed at an off-shore location using a platform, such as a standard jack-up vessel or a crane jacket.

Abstract: Described herein is a device for upending a tubular element with a longitudinal direction at an outer end. The device has a cross-shaped support structure of mutually coupled beams. The support structure is pivotable round a lifting member connected thereto for connection to a lifting means such as a crane. Clamping members slidable along the beams from a clear position to a clamping position can provide for coupling to a wall part of the outer end of the tubular element in the clamping position. In the clamping position the beams extend substantially transversely of the longitudinal direction of the tubular element. Also described herein is a method which makes use of the device.