Abstract: A method of making an elongate reinforcing structure, such as a shear web, for a wind turbine blade is described. The reinforcing structure comprises a longitudinally-extending web and a longitudinally-extending flange. The flange extends along a longitudinal edge of the web and is arranged transversely to the web. The method involves providing a flange structure comprising a flange portion, and a projecting portion that extends along the length of the flange portion and projects transversely from a surface of the flange portion. The projecting portion is bonded between laminate layers of the web. The flange structure is preferably a pultruded component having a T-shaped cross-section. The method allows a simple, inexpensive and reconfigurable mould tool to be used. In preferred embodiments the mould tool has a flat surface without sidewalls.

Abstract: A method of making passive microscopic Fabry-Pérot Interferometer (FPI) sensor includes forming a three-dimensional microscopic optical structure on a cleaved tip of an optical fiber that reflects a light signal back through the optical fiber. The reflected light is altered by refractive index changes in the three-dimensional structure that is subject to at least one of: (i) thermal radiation; and (ii) volatile organic compounds.

Abstract: An interlocking paver system including a polygon paver and a spacer paver is provided. The polygon paver may have a top level having a top level polygon paver perimeter and a bottom level secured to and protruding from the top level and having a bottom level polygon paver perimeter contained within the top level polygon paver perimeter. The spacer paver may have a top level having a top level spacer paver perimeter and a bottom level secured to and protruding from the top level and having a bottom level spacer paver perimeter extending beyond an entirety of the top level spacer paver perimeter The spacer paver may be configured to selectively interlock with the polygon paver. The top level spacer paver perimeter, top level polygon paver perimeter, and bottom level spacer paver perimeter are different from one another.

Abstract: Systems and methods describe augmented reality provided for navigated surgery. An augmented reality overlay (e.g. computer generated images) is rendered and displayed over images of a tracked anatomical structure. An optical sensor unit provides tracking images of targets associated with objects including the anatomical structure in a real 3D space as well as visible images thereof. The anatomical structure is registered, generating corresponding poses of the anatomical structure in a computational 3D space from poses in the real 3D space. The overlay pose in the computational 3D space is aligned with the anatomical structure pose so that the overlay is rendered on a display of the anatomical structure in a desired pose. The overlay may be generated from a (3D) overlay model such of a generic or patient specific bone, or other anatomical structure or object. The overlay may be used to register the anatomical structure.

Abstract: A passive microscopic Fabry-Pérot Interferometer (FPI) sensor includes an optical fiber a three-dimensional microscopic optical structure formed on a cleaved tip of an optical fighter that reflects a light signal back through the optical fiber. The reflected light is altered by refractive index changes in the three-dimensional structure that is subject to at least one of: (i) thermal radiation; and (ii) volatile organic compounds.

Abstract: A method of making a wind turbine blade is described. The wind turbine blade comprises first and second half shells joined together and a shear web bonded between inner surfaces of the respective half shells. The blade is made in a one-stage join up process, which involves supporting the half shells in respective mould halves, and arranging one of the half shells on top of the other half shell with the shear web arranged between the two half shells. Adhesive is provided between the shear web and the inner surfaces of the respective half shells. During the join-up process, the shear web is supported by stabilisers. The use of stabilisers avoids the need for a jig to support the shear web. Stabilisers attached to an inboard end of the shear web may remain accessible after the join-up and can be removed.

Abstract: Methods and systems for establishing a chain of relationships are disclosed. An identity verification platform receives a first request for registration comprising an identification of a first user, identification of an entity, and a relationship between the first user and the entity; verifies the identity of the first user and the relationship between the first user and the entity; and verifies that the entity is legitimate. Once a relationship between a first individual, invited by the first user, and the entity is confirmed, the platform creates a custom badge representing the relationship between the first individual and the entity for display on the entity's website. The platform receives an identification of a selection by an end user of the custom badge and, responsive to receiving the identification of the selection, renders, on a domain controlled by the identity verification platform, a verification that the relationship between the first individual and the entity is valid.

Abstract: Method of bonding a shear web (50) to a wind turbine blade shell (75) and the obtained blade, wherein the shear web (50) comprises a web and a mounting flange (56) oriented transverse to the web (50). The method involves: providing a seal (66, 68) on the mounting flange (56) of the shear web (50) such that when the mounting flange (56) is positioned against the blade shell (75), a cavity (76) is defined by the seal between the mounting flange (56) and the blade shell (75). The air of the cavity (76) is then evacuated and adhesive is injected into the cavity (76). The use of pieces (80) to keep the distance between the mounting flange (56) and the blade shell (75) is preferred.

Abstract: In a distributed storage of data objects in a cluster system, a data object is distributed across a group of node apparatuses in units of data blocks. For each child object, the metadata structure of the respective child object is stored to one of the node apparatuses of the group of node apparatuses for managing locations of data blocks of the data object and includes a root metadata node and one or more direct metadata nodes, optionally further including one or more indirect metadata nodes; and the metadata structure of the parent object is distributed across the plural node apparatuses of the group of node apparatuses for managing locations of child objects of the data object and includes, on each node apparatus of the group of node apparatuses, a root metadata node and one or more direct metadata nodes, optionally further including one or more indirect metadata nodes.

Abstract: A passive microscopic Fabry-Pérot Interferometer (FPI) sensor an optical fiber a three-dimensional microscopic optical structure formed on a cleaved tip of an optical fighter that reflects a light signal back through the optical fiber. The reflected light is altered by refractive index changes in the three-dimensional structure that is subject to at least one of: (i) thermal radiation; and (ii) volatile organic compounds.

Abstract: Methods and systems for establishing a chain of relationships are disclosed. An identity verification platform receives a first request for registration comprising an identification of a first user, identification of an entity, and a relationship between the first user and the entity; verifies the identity of the first user and the relationship between the first user and the entity; and verifies that the entity is legitimate. Once a relationship between a first individual, invited by the first user, and the entity is confirmed, the platform creates a custom badge representing the relationship between the first individual and the entity for display on the entity's website. The platform receives an identification of a selection by an end user of the custom badge and, responsive to receiving the identification of the selection, renders, on a domain controlled by the identity verification platform, a verification that the relationship between the first individual and the entity is valid.

Abstract: A method comprises a computer-implemented contextual virtual assistant (CVA) analyzing one or of a user corpus and input user information to determine to communicate user information to a primary recipient. In the method, the CVA receives information associated with a recipient context that includes the primary recipient, and can determine from the context information that an ancillary recipient is privy, in the recipient context, to information output by the system. The CVA further determines, in the method, output information, based on the user information, and a recipient context to communicate to the primary recipient. The recipient context, comprises a preferred location of the primary recipient, and preferred time, to communicate the output information. A CVA system includes a user corpus, CVA input and output devices, and processors. The processors can perform the method. A computer program product can include instructions to cause one or more processors to perform the method.

Abstract: A data de-duplication in a distributed storage of data objects in a cluster system, in which plural data objects are distributed across a group of node apparatuses and stored in units of data blocks. Each metadata structure including a root metadata node and one or more direct metadata nodes, and optionally including one or more indirect metadata nodes; and a metadata object is stored for managing de-duplicated data blocks based on a metadata structure of the metadata object wherein at least one direct metadata node of the metadata structure of the metadata object includes a block reference pointing to a de-duplicated data block being associated with two or more data objects. Preferably, each of the metadata structures of the two or more data objects being associated with the de-duplicated data block includes a respective direct metadata node including an object reference to the metadata structure of the metadata object.

Abstract: An interlocking paver system including polygon and spacer pavers. The polygon paver has a longitudinal axis extending from a first to a second side and a transverse axis orthogonal to the longitudinal axis and extending from a third to a fourth side. The spacer paver has a longitudinal axis extending from a first to a second side and a transverse axis orthogonal to the longitudinal axis and extending from a third to a fourth side. Both the polygon and spacer pavers are symmetrical about the longitudinal and transverse axes. The spacer paver is configured to selectively interlock with the polygon paver with either of the third or fourth side of the polygon paver adjacent either of the first or second side of the spacer paver and either of the first or second side of the polygon paver adjacent either of the third or fourth side of the spacer paver.

Abstract: A web locating device for locating a shear web at a predefined location on an inner surface of a wind turbine blade shell is described. The base comprises a base and a first guide structure. The base is for securing to the inner surface of the blade shell at a predefined position on the inner surface and the first guide structure projects from the base. The first guide structure has a first guide surface arranged to guide a mounting portion of the shear web towards the predefined location on the inner surface of the wind turbine blade shell. The base of the device includes one or more alignment features for aligning with one or more reference features at the predefined position on the inner surface of the blade shell. Also described are a wind turbine blade, and a method of making a wind turbine blade.

Abstract: Aspects of the subject technology relate to systems and methods for pumping multiple wellbores to form and stabilize fractures during a fracturing job. A fluid pump of known operating pump capacity measurable in barrels per minute is selected. The pump is fluidly connected with each of a plurality of cased wellbores in a subterranean formation for providing fracturing fluid to each of the wellbores. The plurality of wellbores each have at least one perforation through a casing of the wellbore that has a known rate range within which fracturing fluid is required to successfully fracture the subterranean formation outside the perforation through the perforation. The pump is configured to provide fracturing fluid to each of the perforations within the known rate range of the respective perforation to successfully fracture the subterranean formation outside of the perforation.

Abstract: Aspects of the subject technology relate to systems and methods for pumping multiple wellbores from a common pumping source. A fluid pump of known operating pump capacity can be selected. The pump can be fluidly connected to a common pumping source that is fluidly connected with each of a plurality of cased wellbores in a subterranean formation for providing pumped fracturing fluid to each of the wellbores. Each of the plurality of wellbores can have at least one perforation through a casing of the wellbore with a known rate range within which fracturing fluid is required to be provided to the perforation to successfully fracture the subterranean formation outside the perforation, through the perforation. Further, the wellbores can be configured so that the common pumping source provides fracturing fluid to each of the perforations within the known rate range of the respective perforation to successfully fracture the subterranean formation.

Abstract: Aspects of the subject technology relate to systems and methods for pumping a wellbore with a pump operating in a damage avoidance mode during a hydraulic fracturing job. A fluid pump of known operating pump capacity measurable in barrels per minute is selected. The pump is fluidly connected with each of a cased wellbore in a subterranean formation for providing fracturing fluid to the wellbore. The wellbore has at least one perforation through a casing of the wellbore that has a known rate range within which fracturing fluid is required to successfully fracture the subterranean formation outside the perforation through the perforation. The pump is configured to provide fracturing fluid to each perforation within the known rate range of the respective perforation to successfully fracture the subterranean formation outside of the perforation while operating the pump in a damage avoidance mode.

Abstract: A composite material blank (190) comprising an elongate blank body (300) extending between a first end face (312a) and a second end face (312b); said blank body (300) extending in a longitudinal direction, parallel to a longitudinal axis thereof, and having four peripheral sides (341, 342, 343, 344); each said first and second end face (312a, 312b) having edges (361a-364a; 361b-364b) which define a trapezoid shape; wherein the peripheral sides (341, 342, 343, 344) of said blank body (190) connect the edges (361a-364a) of said first end face (312a) with the edges (361b-364b) of said second end face (312b); and wherein said first trapezoid end face (312a) is inverted in relation to said second trapezoid end face (312b). A method of manufacturing a composite blank (190), and a wind turbine blade root insert (105) which may be formed from a blank (190).