Abstract: A spray head includes a nozzle, a sealing gasket, a first nut, and a screw. The nozzle includes an inlet portion, an outlet portion extending from an end of the inlet portion along an axial direction, and a first through hole penetrating the inlet portion and the outlet portion along the axial direction. The first through hole defines an opening on a surface of the outlet portion facing away from the inlet portion. The opening is rectangular. The sealing gasket is sleeved on the inlet portion. The first nut is sleeved on the nozzle and receiving the sealing gasket. The screw is located on a side of the sealing gasket facing away from the outlet portion and is engaged with the first nut. A second through hole penetrates the screw communicating with the first through hole. The disclosure also provides a cleaning device having the spray head.

Abstract: The present disclosure relates to a method and apparatus for robust and automatic face de-identification from CT and MRI. The method includes: receiving DICOM files of patient bodies obtained by a CT or MM system; normalizing the images; extracting the heads from bodies; creating face masks; and writing DICOM files back with de-identified faces.

Abstract: The present disclosure relates to a method and apparatus for automatic head and neck organ segmentation. The method includes: receiving 3D images obtained by a CT system or an MRI system; processing the 3D images to transform to patient coordinate system and have the same spatial resolution and matrix size; building a deep learning framework using CNN models for organ segmentation; doubling the size of training dataset by emulating uncollected training data with mirrored images and their corresponding labels; improving the performance by predicting on original and mirrored images and averaging the output probabilities; and post-processing the output from the deep learning framework to obtain final organ segmentation.

Abstract: The present disclosure relates to a method and apparatus for fast Monte Carlo (MC) dose calculation using a virtual source model (VSM).

Abstract: This application discloses an information processing method, apparatus, and device, and relates to the field of artificial intelligence (AI). The method includes displaying a user interface, the user interface comprising a received virtual item packet, and the virtual item packet comprising topic information; displaying the topic information of the virtual item packet; receiving an interaction message corresponding to a second user account, the interaction message being matched with target information to request to receive a virtual item in the virtual item packet, and the target information being the topic information or information associated with the topic information; and receiving the virtual item in the virtual item packet in response to matching the interaction message and the target information.

Abstract: A method for determining properties of different cation exchange sites in a rock core sample, at a preserved state of the rock core sample may include providing a rock core sample that includes a plurality of indigenous exchangeable cations adsorbed onto the cation exchange sites, a plurality of cation exchange sites occupied by a crude oil, and one or more fluids occupying pore spaces in the rock core sample; subjecting the rock core sample to a plurality of coreflooding steps, the plurality of coreflooding step displacing the plurality of indigenous exchangeable cations, the crude oil, and the one or more fluids in at least three separate coreflooding steps to render the rock core sample clean of native components; determining an amount of indigenous exchangeable cations adsorbed onto the cation exchange sites; subjecting the rock core sample clean of native components to a plurality of coreflooding steps to determine a total amount of exchangeable cations adsorbed onto the cation exchange sites when the ro

Abstract: A method for determining properties of different cation exchange sites in a rock core sample at a non-preserved state may include displacing all native components out of the rock core sample before subjecting the rock core sample to coreflooding steps to determine a total amount of exchangeable cations adsorbed onto the cation exchange sites; injecting formation brine and then a reservoir crude oil into the rock core sample such that the rock core sample includes indigenous exchangeable cations adsorbed onto the cation exchange sites, cation exchange sites occupied by a crude oil, and one or more fluids; subjecting the rock core sample to coreflooding steps to displace the indigenous exchangeable cations, the crude oil, and the one or more fluids; determining an amount of indigenous exchangeable cations adsorbed onto the cation exchange sites; and determining at least one property of different cation exchange sites.

Abstract: One or more techniques and/or systems are disclosed for interrupting fluid flow when experiencing fuel leaking conditions, such as an out of specification connection between the fuel source and a device utilizing the fluid. A distal end of a valve body has interfaces with at least a portion of a connection to a fluid supply; and a proximal end interfaces with at least a portion of a fuel intake. An internal passage runs between the proximal end and distal ends of. A displacement member in the internal passage comprises a distal portion that extends out of the valve to engage a valve to the fuel supply. A retention cap selectably engaged with the valve body can comprise a material that deforms under force at a predetermined temperature, resulting in a release of the displacement member under a biasing force form a biasing component between the cap and displacement member.

Abstract: The present disclosure relates to a method and apparatus to improve model-based organ segmentation with image post-processing using one or more processors. The method includes: receiving three-dimensional (3D) CT or MR images and the corresponding voxel-by-voxel segmentation results from the output of an automatic DCNN segmentation model, analyzing the segmentation results on a 3D basis according to organ anatomical information, processing the results to identify regions with anatomically incorrect segmentations, fixing the incorrect segmentations, analyzing the remaining segmentation results on a two-dimensional (2D) and slice-by-slice basis according to predefined organ segmentation criteria, identifying the start and end slices, processing the results to remove segmentations beyond the identified slices to obtain the final results.

Abstract: In order to reduce energy loss of a tapped linear driver, it is proposed an LED lighting circuit, comprising an input (Vbus, GND) adapted to receive an input voltage, a plurality of LED segments (LED1, LED2, LED3, LED) connected in series and to the input, a buffer component (C9) connected to an anode and a cathode of a series string of at least two of the plurality of LED segments with respective switches, a current source circuit (B1) in series connection with a parallel connection of the buffer component (C9) and the at least two LED segments, across the input; further comprising a further buffer component (C5) across the current source circuit (B1), wherein said buffer component (C9) and the further buffer component (C5) is in series connection.

Abstract: A method for determining residual fluid saturation of a subsurface formation includes acquiring a sample of the subsurface formation, determining a first residual oil saturation during a water flooding process, determining a second residual oil saturation during a gas flooding process, determining a third residual oil saturation during an enhanced oil recovery (EOR) processes, and determining irreducible water saturation during an oil displacing water process.

Abstract: A surveillance system includes a first electronic device, a second electronic device, an image-capturing unit, and a multi-computer switching unit. The image-capturing unit corresponds to the second electronic device, and the image-capturing unit captures an image of a location of the second electronic device. The multi-computer switching unit is coupled to the first electronic device, the second electronic device, and the image-capturing unit, and the multi-computer switching unit receives the image from the image-capturing unit. When the second electronic device sends a connection request for establishing a communication connection with the first electronic device, the communication connection is established through the multi-computer switching unit, and the multi-computer switching unit outputs the image corresponding to the location of the second electronic device to a surveillance terminal device.

Abstract: A LED lighting circuit has a plurality of LED segments connected in series. A switching arrangement is used to selectively bypass at least one LED segment to implement a tapped linear driver approach. Degrading of a component in the LED lighting circuit is detected, so that a first TLD current modulation scheme is implemented when no such degrading is detected whereas a second current modulation scheme, different from the first current modulation scheme, is implemented to compensate for said degrading. Said degrading is leading to an increase in a turning on voltage of one LED segment, and compared to said first current modulation scheme, said second current modulation scheme has a higher voltage threshold at which said LED segment is switched. In this way, protection may be provided for circuit components and the light output may be maintained at the desired level in the event of component degrading, such as LED chip failure or contact resistance changes.

Abstract: A data recommendation method is described. A first label set corresponding to multimedia data can be acquired. At least one second label set each corresponding to one of at least one to-be-recommended data can be acquired. Each second label set can include at least one label each representing a content attribute of the respective to-be-recommended data. A set similarity between the first label set and each of the at least one second label set can be determined according to label positions in the label tree. Target recommendation data matched with the multimedia data can be determined from the to-be-recommended data set according to the set similarity between the first label set and each of the at least one second label set.

Abstract: One or more techniques and/or systems are disclosed for interrupting fluid flow when experiencing fuel leaking conditions, such as an out of specification connection between the fuel source and a device utilizing the fluid. A distal end of a valve body has interfaces with at least a portion of a connection to a fluid supply; and a proximal end interfaces with at least a portion of a fuel intake. An internal passage runs between the proximal end and distal ends of. A displacement member in the internal passage comprises a distal portion that extends out of the valve to engage a valve to the fuel supply. A retention cap selectably engaged with the valve body can comprise a material that deforms under force at a predetermined temperature, resulting in a release of the displacement member under a biasing force form a biasing component between the cap and displacement member.

Abstract: The present invention relates to a compound having the formula (I); and an organic semiconducting layer, an organic electronic device, a display device and a lighting device comprising the same.

Abstract: The present invention relates to a compound of formula (I); an organic semiconducting layer, an organic electronic device, a display device or a lighting device comprising the same.

Abstract: A method for determining properties of different cation exchange sites in a rock core sample may include providing a rock core sample that is in either a preserved state or a non-preserved state, wherein a preserved form of the rock core sample includes a plurality of indigenous exchangeable cations adsorbed onto the cation exchange sites, a plurality of cation exchange sites occupied by a crude oil, and one or more fluids occupying pore spaces in the rock core sample; subjecting the rock core sample to a plurality of coreflooding steps, the plurality of coreflooding step displacing the plurality of indigenous exchangeable cations and the one or more fluids in at least two separate coreflooding steps to render the rock core sample clean of indigenous exchangeable cations; and determining an amount of indigenous exchangeable cations adsorbed onto the cation exchange sites.

Abstract: A quality assurance device for a medical accelerator includes a housing having an inner radioluminescent layer adapted to provide a visual indication when contacted with invisible radiation generated by the medical accelerator. In addition, the quality assurance device includes one or more passive optical components within the housing adapted to deliver an image of the inner radioluminescent layer of the housing including the visual indication to one or more cameras located outside of the housing.

Abstract: A quality assurance device for a medical accelerator includes a housing having an inner radioluminescent layer adapted to provide a visual indication when contacted with invisible radiation generated by the medical accelerator. In addition, the quality assurance device includes one or more cameras located within the housing and adapted to image the inner radioluminescent layer of the housing including the visual indication.