Abstract: The subject matter described herein provides for adaptive drone configurations that provide longitudinally extendable/retractable blade designs to enable dynamically adjustable drone configurations based on an application, condition, and/or requirement allowing for parameters such as such as battery life, flight time, flight distance, acceleration, and storage size to be optimized in real-time.

Abstract: Various technologies described herein pertain to utilization of shared Wi-Fi. For instance, network access rights of a Wi-Fi network can be controlled by a mobile device of a point of contact for the Wi-Fi network. Moreover, utilization of a Wi-Fi network can be tracked and usage data indicative of historic utilization of the Wi-Fi network can be retained. Further, groups of users between whom Wi-Fi credentials are shared can be created.

Abstract: A nuclear island includes a nuclear reactor, a lateral seismic restraint, and a reactor core retention cooling system. The lateral seismic restraint includes a vertically oriented pin attached to one of the bottom of the lower vessel head and the floor underneath the nuclear reactor, and a mating pin socket is attached to the other of the bottom of the lower vessel head and the floor. The reactor core retention cooling system includes one or more baffles, optionally thermally insulating material, disposed alongside the exterior surface of a lower portion of the reactor pressure vessel including at least the lower vessel head. A plenum is defined between the one or more baffles and the exterior surface of a lower portion of the reactor pressure vessel. The one or more baffles may define a lower plenum inlet surrounding the lateral seismic restraint.

Abstract: Machine vision methods and systems determine if an object within a work field has one or more predetermined features. Methods comprise capturing image data of the work field, applying a filter to the image data, in which the filter comprises an aspect corresponding to a presumed feature, and based at least in part on the applying, determining if the object has the presumed feature. Systems comprise a camera system configured to capture image data of the work field, and a controller communicatively coupled to the camera system and programmed to apply a filter to the image data, and based at least in part on applying the filter, determine if the object has the specific feature. Robotic installation methods and systems that utilize machine vision methods and systems also are disclosed.

Abstract: Machine vision methods and systems determine if an object within a work field has one or more predetermined features. Methods comprise capturing image data of the work field, applying a filter to the image data, in which the filter comprises an aspect corresponding to a specific feature, and based at least in part on the applying, determining if the object has the specific feature. Systems comprise a camera system configured to capture image data of the work field, and a controller communicatively coupled to the camera system and comprising non-transitory computer readable media having computer-readable instructions that, when executed, cause the controller to apply a filter to the image data, and based at least in part on applying the filter, determine if the object has the specific feature. Robotic installation methods and systems that utilize machine vision methods and systems also are disclosed.

Abstract: A riser cone has a lower end sized to engage a cylindrical lower riser section of a nuclear reactor and an upper end sized to engage a cylindrical upper riser section of the nuclear reactor. The riser cone defines a compression sealing ring that is compressed between the lower riser section and the upper riser section in the assembled nuclear reactor. In some embodiments the riser cone comprises: a lower element defining the lower end of the riser cone; an upper element defining the upper end of the riser cone; and a compliance spring compressed between the lower element and the upper element. In some embodiments the riser cone comprises a frustoconical compression sealing ring accommodating a reduced diameter of the upper riser section as compared with the diameter of the lower riser section.

Abstract: Machine vision methods and systems determine if an object within a work field has one or more predetermined features. Methods comprise capturing image data of the work field, applying a filter to the image data, in which the filter comprises an aspect corresponding to a specific feature, and based at least in part on the applying, determining if the object has the specific feature. Systems comprise a camera system configured to capture image data of the work field, and a controller communicatively coupled to the camera system and comprising non-transitory computer readable media having computer-readable instructions that, when executed, cause the controller to apply a filter to the image data, and based at least in part on applying the filter, determine if the object has the specific feature. Robotic installation methods and systems that utilize machine vision methods and systems also are disclosed.

Abstract: Various technologies described herein pertain to sharing Wi-Fi credentials based upon relationships in a computer-implemented social network. At least one server computing device of a Wi-Fi credential sharing service receives an identifier from a mobile device and credentials for a Wi-Fi network from the mobile device. The identifier identifies a user of the mobile device. Moreover, the credentials for the Wi-Fi network are desirably shared by the user. Further, contacts of the user are retrieved from the social network. The credentials for the Wi-Fi network are retained in respective accounts of the contacts of the user from the social network. Further, an account of a contact includes credentials for Wi-Fi networks shared with the contact.

Abstract: Various technologies described herein pertain to controlling functionality of a display based on visual focus of a user in a multiple display or multiple computational device environment. A particular display from a set of displays on which a user is visually focused is identified. The set of displays includes at least a first display and a second display. Moreover, a type of input receivable from the user via the first display and/or content rendered on the first display is controlled based on the visual focus of the user.

Abstract: A nuclear reactor includes a pressure vessel and a nuclear reactor core comprising fissile material disposed inside the pressure vessel at the bottom of the pressure vessel. A secondary core containment structure includes a containment basket comprising insulation with a maximum stable temperature of at least 2200K cladded by steel. The bottom of the pressure vessel and the nuclear reactor core are disposed inside the containment basket with the containment basket spaced apart from the bottom of the pressure vessel by a clearance gap. The containment basket may comprise zirconia insulation cladded by steel. In some embodiments the clearance gap between the containment basket and the bottom of the pressure vessel is no larger than one meter. The secondary core containment structure may further comprise conduits arranged to inject water into the clearance gap between the containment basket and the bottom of the pressure vessel.

Abstract: A nuclear reactor includes a pressure vessel and a nuclear reactor core comprising fissile material disposed inside the pressure vessel at the bottom of the pressure vessel. A secondary core containment structure includes a containment basket comprising insulation with a maximum stable temperature of at least 2200K cladded by steel. The bottom of the pressure vessel and the nuclear reactor core are disposed inside the containment basket with the containment basket spaced apart from the bottom of the pressure vessel by a clearance gap. The containment basket may comprise zirconia insulation cladded by steel. In some embodiments the clearance gap between the containment basket and the bottom of the pressure vessel is no larger than one meter. The secondary core containment structure may further comprise conduits arranged to inject water into the clearance gap between the containment basket and the bottom of the pressure vessel.

Abstract: Various technologies described herein pertain to utilization of shared Wi-Fi. For instance, network access rights of a Wi-Fi network can be controlled by a mobile device of a point of contact for the Wi-Fi network. Moreover, utilization of a Wi-Fi network can be tracked and usage data indicative of historic utilization of the Wi-Fi network can be retained. Further, groups of users between whom Wi-Fi credentials are shared can be created.

Abstract: Various technologies described herein pertain to utilization of shared Wi-Fi. For instance, network access rights of a Wi-Fi network can be controlled by a mobile device of a point of contact for the Wi-Fi network. Moreover, utilization of a Wi-Fi network can be tracked and usage data indicative of historic utilization of the Wi-Fi network can be retained. Further, groups of users between whom Wi-Fi credentials are shared can be created.

Abstract: Various technologies described herein pertain to controlling a game with a mobile touch-enabled device. A thumbstick and a mode selection button can be rendered on a display of the mobile touch-enabled device. The thumbstick can be rendered on a reassignable area of the display and the mode selection button can be rendered on a mode selection area of the display. A touch (e.g., drag) from the mode selection area to the reassignable area can be detected, and an operation in the game can be controlled with the thumbstick represented as being at a depressed height in response to the touch in the reassignable area while the touch is detected without discontinuity of contact from starting the drag. Further, upon detecting discontinuation of the touch, a different operation in the game can be controlled with the thumbstick represented as being at a default height in response to a subsequent touch.

Abstract: A nuclear island includes a nuclear reactor, a lateral seismic restraint, and an in-vessel reactor core retention cooling system. The lateral seismic restraint includes a vertically oriented pin attached to one of the bottom of the lower vessel head and the floor underneath the nuclear reactor, and a mating pin socket is attached to the other of the bottom of the lower vessel head and the floor. The in-vessel reactor core retention cooling system includes one or more baffles, optionally thermally insulating material, disposed alongside the exterior surface of a lower portion of the reactor pressure vessel including at least the lower vessel head. A plenum is defined between the one or more baffles and the exterior surface of a lower portion of the reactor pressure vessel. The one or more baffles may define a lower plenum inlet surrounding the lateral seismic restraint.

Abstract: A nuclear reactor includes a reactor core disposed in a reactor pressure vessel. A radiological containment contains the nuclear reactor and includes a concrete floor located underneath the nuclear reactor. An ex vessel corium retention system includes flow channels embedded in the concrete floor located underneath the nuclear reactor, an inlet in fluid communication with first ends of the flow channels, and an outlet in fluid communication with second ends of the flow channels. In some embodiments the inlet is in fluid communication with the interior of the radiological containment at a first elevation and the outlet is in fluid communication with the interior of the radiological containment at a second elevation higher than the first elevation. The radiological containment may include a reactor cavity containing a lower portion of the pressure vessel, wherein the concrete floor located underneath the nuclear reactor is the reactor cavity floor.

Abstract: A nuclear reactor including a lateral seismic restraint with a vertically oriented pin attached to the lower vessel head and a mating pin socket attached to the floor. Thermally insulating materials are disposed alongside the exterior surface of a lower portion of the reactor pressure vessel including at least the lower vessel head.

Abstract: Various technologies described herein pertain to controlling functionality of a display based on visual focus of a user in a multiple display or multiple computational device environment. A particular display from a set of displays on which a user is visually focused is identified. The set of displays includes at least a first display and a second display. Moreover, a type of input receivable from the user via the first display and/or content rendered on the first display is controlled based on the visual focus of the user.

Abstract: A riser cone has a lower end sized to engage a cylindrical lower riser section of a nuclear reactor and an upper end sized to engage a cylindrical upper riser section of the nuclear reactor. The riser cone defines a compression sealing ring that is compressed between the lower riser section and the upper riser section in the assembled nuclear reactor. In some embodiments the riser cone comprises: a lower element defining the lower end of the riser cone; an upper element defining the upper end of the riser cone; and a compliance spring compressed between the lower element and the upper element. In some embodiments the riser cone comprises a frustoconical compression sealing ring accommodating a reduced diameter of the upper riser section as compared with the diameter of the lower riser section.

Abstract: Various technologies described herein pertain to controlling functionality of a display based on visual focus of a user in a multiple display or multiple computational device environment. A particular display from a set of displays on which a user is visually focused is identified. The set of displays includes at least a first display and a second display. Moreover, a type of input receivable from the user via the first display and/or content rendered on the first display is controlled based on the visual focus of the user.