摘要:
A free-standing riser system connects a subsea source to a surface structure. The system includes a concentric free-standing riser comprising inner and outer risers defining an annulus there between. A lower end of the riser is fluidly coupled to the subsea source through a lower riser assembly (LRA) and one or more subsea flexible conduits. An upper end of the riser is connected to a buoyancy assembly and the surface structure through an upper riser assembly (URA) and one or more upper flexible conduits, the riser also mechanically connected to a buoyancy assembly that applies upward tension to the riser. The riser may be insulated for flow assurance, either by a flow assurance fluid in the annulus, insulation of the outside of the outer riser, or both. The system may include a hydrate inhibition system and/or a subsea dispersant system. The surface structure may be dynamically positioned.
摘要:
A system for transferring fluids from a free-standing riser to a surface vessel comprises a first valve assembly including a first valve spool and a first isolation valve configured to control the flow of fluids through the first valve spool. In addition, the system comprises a second valve assembly releasably coupled to the first valve assembly with a hydraulically actuated connector. The second valve assembly includes a second valve spool and a second isolation valve configured to control the flow of fluids through the second valve spool. Further, the system comprises a deployment/retrieval rigging coupled to the first valve assembly and configured to suspend the first valve assembly and the second valve assembly from the surface vessel. Each isolation valve has an open position allowing fluid flow therethrough and a closed position restricting fluid flow therethrough, and each isolation valve is biased to the closed position.
摘要:
A system for transferring fluids from a free-standing riser to a surface vessel comprises a first valve assembly including a first valve spool and a first isolation valve configured to control the flow of fluids through the first valve spool. In addition, the system comprises a second valve assembly releasably coupled to the first valve assembly with a hydraulically actuated connector. The second valve assembly includes a second valve spool and a second isolation valve configured to control the flow of fluids through the second valve spool. Further, the system comprises a deployment/retrieval rigging coupled to the first valve assembly and configured to suspend the first valve assembly and the second valve assembly from the surface vessel. Each isolation valve has an open position allowing fluid flow therethrough and a closed position restricting fluid flow therethrough, and each isolation valve is biased to the closed position.
摘要:
An end effector controller that is gripped by an operator in one hand, including a pistol-grip housing configured to fit in the palm of an operator's hand when gripped and having mounted thereon a plurality of switching mechanisms with pivoting, dual-acting switch triggers each configured for independent actuation by multiple fingers of the hand when said controller is gripped, and a method for controlling a robotic end effector remotely using the operator hand-gripped controller, the method including switching between preset operating modes of the end effector using a single, control input element, easily actuated by a finger in the operator's gripping hand; and providing continuous fine adjustment between preset modes using a second, control input element also easily actuated by a finger on the operator's gripping hand.
摘要:
Systems and methods for use in association with a master entity index system may allow data records to be grouped together into various entities, where each of the entities may represent a logical or physical item. These entities may also be associated with one another in a manner such that relationships between entities may likewise be represented. In one embodiment, an interface may be provided for use in conjunction with the master entity index system such that these various entities and relationships may be better managed, manipulated or visualized. This interface may allow a user to search for or otherwise obtain an entity, where a representation of this entity and one or more associated entities may be presented to the user along with representations of the relationships between these entities.
摘要:
In one embodiment, the disclosure is directed to a chemical mechanical polishing retaining ring. The chemical mechanical polishing retaining ring includes a support formed of a first material comprising a first polymer and a wear portion formed of a second material comprising a second polymer. The first material has an elastic modulus greater than the elastic modulus of the second material.
摘要:
The present invention is an electrolyte which provides superior safety characteristics on cells using the electrolyte. The electrolyte allows for the preparation of cells having acceptable performance when placed in environments where safety concerns are paramount.
摘要:
Systems and methods for joining results in loosely collaborative data exchanges which include a plurality of nodes in communication with each other wherein a node is constrained from sharing payload data regarding a first subject, is allowed to share matching data regarding the first subject, and is further constrained to be separate from the other nodes. In some embodiments, a method includes receiving a set of virtual results from the constrained node including the matching data and excluding the payload data. The method also includes receiving results from the other nodes and determining whether any of the results correspond to the same subject. The method also includes, when any of the results correspond to the same subject, joining the corresponding portions in a hub separate from the constrained node. The joined results can be output.
摘要:
This invention enables the affordability of an elaborate, high-performance teleoperator master controller while encouraging continual operator training by supporting a teleoperator system in which one centralized master controller controls multiple field slaves sequentially.
摘要:
A pistol-grip controller for the control of a robotic or virtual hand has multiple dual-action switching mechanisms positioned to simulate intuitively the motion of grasping and releasing an object. An externally-projecting switch trigger of each switching mechanism is hook-shaped to facilitate the operator donning and doffing the controller. These switches move in response to gripping and releasing movements of the associated fingers so as to close or open peripherals (fingers) of the end effector hand. A rocker switch allows an operator to toggle conveniently between commonly used modes of a virtual or robot hand, or the like. The mode toggling is complemented by a control to adjust between the commonly used modes of operation. To make the manipulation of the end effector more intuitive, the controller remaps the switching mechanisms to different functionalities on the end effector based on the mode of operation. The transition between switch to end effector mappings is hysteretic. In addition, the pistol-grip controller can be attached to an appropriate “master” robot arm and can be moved as a whole to create like roll, pitch and yaw movements and x, y and z displacements of the end effector on the “slave” robot arm without the actuation of any of the switches.