Abstract: A system and method for authorization policy validation. A validator takes as input an authorization policy to be analyzed and a schema that specifies entity types and their attributes, types of entity parents in an entity hierarchy, and which entity types can be used with which actions. The validator checks that the policy conforms to the schema. If the check passes, then the policy is guaranteed to be free of both type errors and attribute access errors for any input that conforms to the schema.

Abstract: A connection between a first tubular member and a second tubular member includes a first tubular end, a second tubular end, a load shoulder member threadable onto the first tubular end, and a nut receivable around the first tubular end and the load shoulder member and threadable onto the second tubular end. The connection also includes a keyway disposed axially between the load shoulder member and the second tubular end, wherein the keyway is also disposed through the load shoulder member and into the first tubular end to receive a key member.

Abstract: A rotating electrical machine is disclosed, the machine comprising a stator comprising a stator core and stator end windings extending out of the stator core, a rotor arranged to rotate inside the stator, a rotor shaft, the rotor shaft having a hollow interior, a coolant circuit for circulating coolant through the machine, and a machine enclosure. The coolant circuit comprises an injection tube arranged to introduce coolant into the hollow interior of the rotor shaft. The rotor shaft is arranged such that coolant exits the hollow interior of the rotor shaft at each end of the machine and is propelled outwards towards the stator end windings. The machine enclosure comprises a passageway for supplying coolant to the injection tube. A coolant distribution channel may be provided for distributing coolant to other parts of the machine to allow the machine to be cooled at multiple locations using the same coolant circuit.

Abstract: A device includes a bottom housing that includes a printed circuit board, a processor formed on the printed circuit board, a probe tip coupled to the processor, and a first wall. The first wall includes a front side surface, a backside surface, and an opening extending from the front side surface to the backside surface. The printed circuit board is coupled to the front side surface of the first wall. The printed circuit board includes a plurality of electrical contacts located on the back surface and coupled to the processor. The electrical contacts on the backside surface of the printed circuit board are visible through the opening formed in the first wall of the bottom housing. The electrical contacts are sealed from fluid penetration and can connect to the electrical contacts of a battery connected to the device.

Abstract: A clamp assembly is disclosed for breaking a severable connection in a pressurised flowline of an oil or gas well. First and second clamp members have first and second interconnected and clamp segments which are pivotally moveable to close around a conduit. First and second guide rods with parallel axes connect the respective first and second clamp segments of the first and second clamp members. A drive mechanism drives axial movement of the first and second clamp members relative to each other. The first and second clamp members engage first and second conduits on opposite sides of the severable connection. Each clamp segment has an inner surface comprising a recess adapted to receive a load shoulder on the conduits.

Abstract: A device includes a bottom housing that includes a printed circuit board, a processor formed on the printed circuit board, a probe tip coupled to the processor, and a first wall. The first wall includes a front side surface, a backside surface, and an opening extending from the front side surface to the backside surface. The printed circuit board is coupled to the front side surface of the first wall. The printed circuit board includes a plurality of electrical contacts located on the back surface and coupled to the processor. The electrical contacts on the backside surface of the printed circuit board are visible through the opening formed in the first wall of the bottom housing. The electrical contacts are sealed from fluid penetration and can connect to the electrical contacts of a battery connected to the device.

Abstract: A method for proprioception control includes receiving user information corresponding to a user wearing a head mounted device while interacting with a simulated environment. The method further includes determining, based on the user information, whether a proprioception of the user is impaired. The method further includes generating, based on the determination that the proprioception of the user is impaired, at least one proprioception aid. The method further includes providing, to the user using the head mounted device, the proprioception aid.

Abstract: A system and method for authorization policy evaluation. Authorization policies are authored in a general-purpose authorization language. An evaluation engine is used in a provider network by application developers to manage access within their applications based on fine-grained permissions. The policy language combines elements of role-based and attributed-based access control within an intuitive syntax and efficient evaluation strategy. The policy syntax separates role-based expressions of a policy from attribute-based expressions of the policy.

Abstract: A system and method for authorization policy validation. A validator takes as input an authorization policy to be analyzed and a schema that specifies entity types and their attributes, types of entity parents in an entity hierarchy, and which entity types can be used with which actions. The validator checks that the policy conforms to the schema. If the check passes, then the policy is guaranteed to be free of both type errors and attribute access errors for any input that conforms to the schema.

Abstract: A connection between a first tubular member and a second tubular member includes a first tubular end, a second tubular end, a load shoulder member threadable onto the first tubular end, and a nut receivable around the first tubular end and the load shoulder member and threadable onto the second tubular end. The connection also includes a keyway disposed axially between the load shoulder member and the second tubular end, wherein the keyway is also disposed through the load shoulder member and into the first tubular end to receive a key member.

Abstract: A subtalar joint implant system that includes a first implant component and a second implant component is disclosed herein. An alternative embodiment of a subtalar joint implant system is disclosed and includes a first component that has threads disposed on at least a portion of an exterior surface of the first component and a second component having threads disposed on at least a portion of the exterior surface of the second component. The first and second components are each configured to couple with at least a portion of a talus and a calcaneum of a patient with the first component being configured to couple with at least a portion of a posterior facet of the calcaneum of the patient and the second component being configured to couple with at least a portion of a middle facet of the calcaneum of the patient.

Abstract: A system for simulating an output in a virtual reality gaming environment including a pod for being entered by a user. A virtual reality device is located in the pod for being worn by the user. A controller unit is electrically connected with the virtual reality device and the pod and defines an electronic three-dimensional grid representative of the pod. At least one motion sensor is electrically connected to the controller unit for detecting movement within the pod and providing the controller unit input data. The input data includes three-dimensional coordinates representative of a location of the detected movement in the pod. At least one output device is disposed in the pod and electrically connected with the controller unit. The controller unit receives the input data and activates the output device at three-dimensional coordinates in the pod that correspond with the three-dimensional coordinates of input data.

Abstract: A method for performing an arthroplasty of a subtalar joint includes making at least one incision adjacent the subtalar joint, accessing the subtalar joint defined superiorly by a first articular surface and inferiorly by a second articular surface, and preparing at least one of the first articular surface and the second articular surface to form first and second interfacing surfaces. The method further includes identifying at least one landmark of the first interfacing surface and the second interfacing surface, determining at least one significant point on at least one of the first interfacing surface and the second interfacing surface relative to the at least one landmark, and placing at least one trial implant. The method also includes securing an implant positioned substantially inferior relative to the first interfacing surface and substantially superior relative to the second interfacing surface, stabilizing the subtalar joint, and closing the at least one incision.

Abstract: A connection assembly and a method comprises first and second connector portions having a preload mechanism comprising a plurality of bores and threaded fixings circumferentially spaced around the axis, wherein the preload mechanism is arranged to apply an axial load between shoulders on the first and second connector portions when torque is applied to the threaded fixings. An annular sealing member is compressed between the first and second portions, and the axial load applied between the first and second shoulders by the preload mechanism exceeds a peak hydrodynamic load urging the first and second connector portions in a direction along the axis. The axial force applied by the preload mechanism advantageously reduces the fatigue damage experienced by the connection, for example, by cyclic pressure changes within the connector portions typically caused by pumps operating at high pressures.

Abstract: A connection between a first tubular member and a second tubular member includes a first tubular end, a second tubular end, a load shoulder member threadable onto the first tubular end, and a nut receivable around the first tubular end and the load shoulder member and threadable onto the second tubular end. The connection also includes a keyway through the load shoulder member and into the first tubular end to receive a key member.

Abstract: A smart shelving system for storing and unloading parcels from a vehicle. The system includes a storage rack which is located in the vehicle and includes a plurality of shelves stacked on top of one another in spaced relationship with one another. Each of the shelves has a side edge. A plurality of trays for holding the parcels are positioned on the shelves. The side edge of at least one of the shelves is aligned with at least one opening of the vehicle. At least one unloading mechanism is configured to move the trays from the shelves and through the at least one opening to a location outside of the vehicle.

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for automatic generation of probe path for surface inspection and part alignment. A mesh model is obtained of at least a portion of a three dimensional model of a part to be manufactured using a computer-controlled manufacturing system. Vertex points from the mesh model are collected to be an initial set of probing points in a three dimensional space of a working coordinate system of the computer-controlled manufacturing system, and filtering out points are filtered out from the initial set of probing points based on coverage of the least a portion of the three dimensional model to produce a final set of probing points. The final set of probing points is provided for use in alignment or surface inspection of the part by the computer-controlled manufacturing system.

Abstract: Methods of making vents in containers made from flexible materials, including forming vent openings in a first flexible material, forming vent stand-offs on a second flexible material, and combining the flexible materials to form a vent passage for the flexible container.

Abstract: A surgical method surgical method includes collecting a set of patient data, identifying at least one significant point from the set of patient data, creating a surgical guide based on the at least one significant point and the patient data, and coupling the surgical guide with a calcaneum of a patient. The surgical method also includes performing at least one cut into the calcaneum using the surgical guide, wherein the at least one cut forms a recess in the calcaneum and defines a first calcaneal portion positioned substantially anteriorly from the recess and a second calcaneal portion positioned substantially posteriorly from the recess, shifting at least one of the first calcaneal portion and the second portion in a medial direction by placing an implant at least partially within the recess, and coupling the implant with the first calcaneal portion and the second calcaneal portion.

Abstract: A rotating electrical machine is disclosed, the machine comprising a stator comprising a stator core and stator end windings extending out of the stator core, a rotor arranged to rotate inside the stator, a rotor shaft, the rotor shaft having a hollow interior, a coolant circuit for circulating coolant through the machine, and a machine enclosure. The coolant circuit comprises an injection tube arranged to introduce coolant into the hollow interior of the rotor shaft. The rotor shaft is arranged such that coolant exits the hollow interior of the rotor shaft at each end of the machine and is propelled outwards towards the stator end windings. The machine enclosure comprises a passageway for supplying coolant to the injection tube. A coolant distribution channel may be provided for distributing coolant to other parts of the machine to allow the machine to be cooled at multiple locations using the same coolant circuit.