Abstract: An electrical power system including: an electrical power source, a power electronics converter, an electrical network, a current limiting diode and a controllable circuit interruption device, wherein: the current limiting diode is configured to limit a fault current passing between the electrical power source and the electrical network in a fault condition; and the controllable circuit interruption device is configured to interrupt the fault current in response to a determination that the electrical power system is in the fault condition.

Abstract: There is provided an electrical power system comprising: a DC voltage source, a DC electrical network, a DC to AC to DC converter having a primary side connected to the DC voltage source and a secondary side connected to the DC electrical network, and a controller configured to control the DC to AC to DC converter, wherein the controller is configured to: monitor an electrical current or voltage between the DC voltage source and the DC electrical network; determine, based on the monitored electrical current or voltage, whether the DC electrical network is in a fault condition; and increase a switching frequency of the primary side of the DC to AC to DC converter in response to a positive determination that the DC electrical network is in a fault condition.

Abstract: In one embodiment, a method includes receiving a request from a user computing device associated with a user for one or more items from an in-vehicle vending apparatus during a ride. The method also includes sending information associated with the user to start a vending session using the in-vehicle vending apparatus. The method also includes receiving an indication that the user associated with the user computer device accessed the in-vehicle vending apparatus. The method also includes determining that the user associated with the user computing device is the only user associated with the ride, determining that the user associated with the user computing device is one of a plurality of users associated with the ride, or determining that the user associated with the user computing device is associated with the in-vehicle vending apparatus.

Abstract: A battery case for housing a battery and a method of fabricating such a battery case are provided. The battery case may be a battery case for an aircraft. The battery case comprises an enclosure having a cavity for housing the battery. An internal surface of the enclosure facing the cavity includes a protective lining comprising cork and a phenolic binder.

Abstract: In one embodiment, a method includes initiating a vending session using an in-vehicle vending apparatus to provide a user access to one or more items, the vending session being initiated by determining that the user is associated with a ride. The method also includes determining that the vending session has ended, which may be determined by determining that the in-vehicle vending apparatus is closed, and determining the one or more items that were taken by the user. The method also includes identifying one or more items taken from the in-vehicle vending apparatus during the vending session based on sensor data from the in-vehicle apparatus. The method also includes sending a confirmation of the one or more items taken to the user.

Abstract: The present disclosure relates to systems, non-transitory computer-readable media, and methods for intelligently and dynamically managing a vehicle service center. For example, a vehicle service system analyzes information associated with vehicles scheduled for service at a vehicle service center comprising a set of sequential stations. Based on the analyzed information, the vehicle service system can determine an allocation of tasks and an allocation of resources for each station. In turn, the disclosed systems can customize, for display on display devices within the vehicle service center, task allocation user interfaces in accordance with a task allocation. Further, the vehicle service system can monitor a completion progress for the task allocation and, based on the completion progress, generate an adjusted task allocation for the given stage of progression.

Abstract: The present disclosure relates to systems, non-transitory computer-readable media, and methods for intelligently dispatching vehicles to a vehicle service center to progress vehicles at a predefined rate through sequential stations of the vehicle service center. The disclosed systems can analyze services associated with vehicles. Based on the services, the disclosed systems can determine how to order, within a virtual queue, vehicles corresponding to the services. For example, the disclosed systems can predict a complexity associated with a service for a vehicle, and in turn, determine whether adding the vehicle to the service queue will allow the vehicle to move through a set of sequential stations in accordance with the predefined progression rate. In response, the disclosed systems can dispatch the vehicle, refrain from dispatching the vehicle, or otherwise dynamically respond to enable the vehicle to move through the set of sequential stations in accordance with the predefined progression rate.

Abstract: In one embodiment, a method includes receiving a request from a user computing device associated with a user for one or more items from an in-vehicle vending apparatus during a ride. The method also includes sending information associated with the user to start a vending session using the in-vehicle vending apparatus. The method also includes receiving an indication that the user associated with the user computer device accessed the in-vehicle vending apparatus. The method also includes determining that the user associated with the user computing device is the only user associated with the ride, determining that the user associated with the user computing device is one of a plurality of users associated with the ride, or determining that the user associated with the user computing device is associated with the in-vehicle vending apparatus.

Abstract: In one embodiment, a method includes receiving a request from a user computing device associated with a user for one or more items from an in-vehicle vending apparatus during a ride. The method also includes sending information associated with the user to start a vending session using the in-vehicle vending apparatus. The method also includes receiving an indication that the user associated with the user computer device accessed the in-vehicle vending apparatus. The method also includes determining that the user associated with the user computing device is the only user associated with the ride, determining that the user associated with the user computing device is one of a plurality of users associated with the ride, or determining that the user associated with the user computing device is associated with the in-vehicle vending apparatus.

Abstract: In one embodiment, a method includes initiating a vending session using an in-vehicle vending apparatus to provide a user access to one or more items, the vending session being initiated by determining that the user is associated with a ride. The method also includes determining that the vending session has ended, which may be determined by determining that the in-vehicle vending apparatus is closed, and determining the one or more items that were taken by the user. The method also includes identifying one or more items taken from the in-vehicle vending apparatus during the vending session based on sensor data from the in-vehicle apparatus. The method also includes sending a confirmation of the one or more items taken to the user.

Abstract: In one embodiment, a method includes receiving a request from a user computing device associated with a user for one or more items from an in-vehicle vending apparatus during a ride. The method also includes sending information associated with the user to start a vending session using the in-vehicle vending apparatus. The method also includes receiving an indication that the user associated with the user computer device accessed the in-vehicle vending apparatus. The method also includes determining that the user associated with the user computing device is the only user associated with the ride, determining that the user associated with the user computing device is one of a plurality of users associated with the ride, or determining that the user associated with the user computing device is associated with the in-vehicle vending apparatus.

Abstract: A chilling sleeve is provided for insertion into a hollow cylinder, such as a control rod driving mechanism guide tube, for adjusting the temperature and therefore the diameter of the cylinder. The chilling sleeve has external inlet and outlet ports, regulated by a pump. The pump injects high pressure liquid coolant, such as liquid nitrogen into the inlet port and through channels in the body of the sleeve out to a high pressure chamber. The liquid coolant escapes the high pressure chamber via escapes holes and enters a low pressure chamber, bordered by the outer wall of the hollow cylinder. In the lower pressure chamber, the liquid coolant evaporates, which chills the adjacent outer wall of the hollow cylinder, thereby shrinking the outer wall so that the hollow cylinder can be fitted into or removed from a cylindrical hole, for example a closure head hole in a vessel head of a nuclear reactor.

Abstract: A forming or re-rounding machine has a pair of concentric inner and outer rings supported with a gap between the rings. The support of the rings provides for both axial and rotational movement. A can or shell having a section to be formed, or a damaged portion for re-rounding, is inserted into the gap. Hydraulic rams are mounted in a radial pattern into the outer edge of the inner ring and the inner edge of the outer ring, facing the gap. The inner and outer rings can be oriented so that the hydraulic rams in each ring can be directly opposed to the hydraulic rams in the opposing ring, or alternatively, can be offset from adjacent hydraulic rams in the opposing ring. In a vertically oriented embodiment, the forming or re-rounding machine has a pair of concentric rings suspended from a crane or I-beam support with a gap between the rings.

Abstract: A forming or re-rounding machine has opposed inner and outer hydraulic ram sets each carried in a housing with rollers. The ram set housings are movably mounted onto an I-beam frame connected by hydraulic cylinders. The frame supports a can or shell for rotation of the surface to position a region for forming or reforming between the hydraulic ram sets. Each ram set has a hydraulic cylinder for advancing a re-forming tool on either the inside or outside of the can or shell to reform the selected region. The I-beam hydraulic cylinders are allowed to compress when the can or shell is positioned for forming or reforming and help prevent flexing of the can or shell outside the selected region.