Abstract: A heating assembly and an aerosol generation device are provided. The heating assembly includes a tubular body having a cavity. A near end of the tubular body is open and used for allowing an aerosol forming substrate to enter the cavity. The tubular body has a heating area and a blank area. A part of the heating area and a part of the blank area are arranged to surround a periphery of the aerosol forming substrate. A temperature and/or temperature rising speed of the blank area is lower than a temperature and/or temperature rising speed of the heating area. A near end of the heating area is closer to the near end of the tubular body than a far end thereof. The far end of the heating area and a far end of the tubular body are spaced apart from each other in a longitudinal direction of the tubular body.

Abstract: A method of fabricating a semiconductor device includes forming a first shallow trench isolation structure in a first region of a substrate and second shallow trench isolation structures in a second region of the substrate. The method also includes forming a mask layer over the substrate, the first shallow trench isolation structure, and the second shallow trench isolation structures. The method further includes etching the mask layer and second shallow trench isolation structures in the second region sequentially to form a semiconductor protrusion between the second shallow trench isolation structures.

Abstract: Example implementations are directed to recapturing or realigning a room or scene in an artificial reality (XR) environment as a three dimensional (3D) space. To initially capture a room, a user manually annotates, using an XR system, one or more walls around the XR system. The XR system then aligns or localizes itself relative to the room. Once a room is captured and stored, and the user in the future enters the room again, the XR system may not be able to align itself in the room due to, for example, lighting conditions. Rather than require the user to manually recapture every wall captured during the initial room capture, the XR system can select one wall for recapture and, after receiving an annotation or marking of the one wall from the user, use the selection to realign the XR system relative to the room.

Abstract: The provided methods include obtaining an image to be matched including multiple pixel points, for each of the multiple pixel points, obtaining pixel reference information of the pixel point including first reference information related to a pixel gradient of the pixel point and second reference information related to pixel values of both the pixel point and adjacent pixel points, determining whether the pixel point is a target pixel point based on the pixel reference information, the target pixel point being a pixel point whose pixel value is not a preset value, in response to the pixel point being the target pixel point, determining an initial similarity between the target pixel point and a pixel point in a template image, and determining the similarity between the image to be matched and the template image based on at least one initial similarity corresponding to at least one target pixel point.

Abstract: In implementations of systems and procedures for a service provider system, a computing device implements predictive recommendation generation. A registration component is employed to register a specific interaction sequence defining an order of user interactions to be performed by a single user during a session on a platform. The specific interaction sequence is predicted to proceed to a request for a recommendation result by the single user. Additionally, an interaction monitor is configured to monitor, in real-time, interaction sequences of a plurality of users. In response to detecting the specific interaction sequence for a user of the plurality of users, the interaction monitor triggers, in real-time, pre-calculation of the recommendation result for the user, and a cache stores the pre-calculated recommendation result.

Abstract: The present disclosure provides a method for motion control of at least one working head. The method may include obtaining a target region of a subject based on a scan of a high-precision measuring device. The method may also include determining depth information corresponding to the target region based on the target region. The method may further include determining a motion trajectory of the at least one working head based on the depth information.

Abstract: A method performed by an entitlement configuration server (106). The method includes receiving a validation request message comprising a first authorization token, authToken, and a phone number. The method also includes retrieving a second authToken, wherein the retrieving comprises using the phone number to retrieve the second authToken. The method also includes determining whether the first authToken is valid, wherein the determining comprises determining whether the first authToken is identical to the secondauthToken. The method also includes transmitting a validation response message responsive to the validation request message, wherein the validation response message indicates whether or not the first authToken is valid. Further methods, apparatus, computer programs and carriers are also disclosed.

Abstract: A real-time human posture tracking and calibration device and a system for tumor radiotherapy are provided, which may replace the traditional treatment bed of a linear accelerator. For tumor targets in areas such as the head and neck that do not move with respiration, the system tracks changes in the skin external contour and the static position of the tumor. For tumors in the chest and abdomen that are significantly affected by respiration, the system first tracks changes in the skin external contour and then compensates for the displacement of the tumor target moving with respiration.

Abstract: A real-time human posture tracking and calibration device and a system for tumor radiotherapy are provided, which may replace the traditional treatment bed of a linear accelerator. For tumor targets in areas such as the head and neck that do not move with respiration, the system tracks changes in the skin external contour and the static position of the tumor. For tumors in the chest and abdomen that are significantly affected by respiration, the system first tracks changes in the skin external contour and then compensates for the displacement of the tumor target moving with respiration.

Abstract: A method of fabricating a semiconductor device includes forming a first shallow trench isolation structure in a first region of a substrate and second shallow trench isolation structures in a second region of the substrate. The method also includes forming a mask layer over the substrate, the first shallow trench isolation structure, and the second shallow trench isolation structures. The method further includes etching the mask layer and second shallow trench isolation structures in the second region sequentially to form a semiconductor protrusion between the second shallow trench isolation structures.

Abstract: The present disclosure relates to systems and methods for object measurement. The systems may obtain an image of an object with a light bar acquired by an imaging device. The light bar may be formed by an optical sensor irradiating the object with a light beam. The systems may obtain a measurement model. The measurement model may be configured to simulate a curved surface formed by the light beam. The systems may determine position information of at least a portion of the object based at least in part on the image of the object with the light bar and the measurement model.

Abstract: The present disclosure provides a semiconductor device, a fabrication method thereof and a memory. The method of forming the semiconductor device includes: providing a semiconductor structure which includes: a semiconductor layer with a first region; and a first gate insulation layer located on the first region; forming a first columnar structure covering a portion of the first gate insulation layer on the first gate insulation layer, wherein the first columnar structure includes a gate and a mask layer located on the gate; forming a spacing layer conformally covering the first columnar structure on the first region and the first gate insulation layer on both sides of the first columnar structure; removing a portion of the spacing layer, wherein the remaining spacing layer covers a side wall of the first columnar structure; removing the first gate insulation layer on both sides of the first columnar structure exposed.

Abstract: Aspects of the present disclosure are directed to a dynamic boundary that triggers operating changes at an artificial reality system. Implementations of a dynamic boundary manager can enforce dynamic boundary criteria. A dynamic boundary that corresponds to the user can be automatically generated, such as when the artificial reality system operates in a certain operating condition. User movements can trigger dynamic boundary criteria and cause one or more of: expansion of the dynamic boundary; popping of the dynamic boundary; and/or reforming of the dynamic boundary. Responsive to these triggers, the dynamic boundary manager can also cause changes to operations at the artificial reality system, such as pause(s) to executing applications and/or changes to the artificial reality environment displayed to the user (e.g., transitions to and from a virtual reality environment, a pass-through visual, etc.).

Abstract: Aspects of the present disclosure relate to more accurate and quicker localization of an artificial reality (XR) system in a real-world space (e.g., a room). If a user enters a room and localization fails, the system can locate a corner that was designated in a previous localization. The corner could have been manually selected by the user or could have been automatically recommended by the XR system. In some implementations, the user or system can identify two adjacent corners in the room for further accuracy. Through later selection of the corner(s) for localization, the XR system can identify the saved room using depth sensors, with identification of corners being more reliable and detectable than other methods identifying walls.

Abstract: Semiconductor devices and fabrication methods of the semiconductor devices are provided. In one aspect, a method includes: forming a gate layer on a substrate, forming a mask layer on the gate layer, etching the gate layer using the mask layer to form a gate, doping the substrate with ions to form source and drain regions on two sides of the gate, removing the mask layer, and forming gate sidewalls covering the two sides of the gate.

Abstract: Use of 6-phosphogluconic acid and a derivative thereof in preparing a medicament for preventing or treating glycometabolism disorder diseases. The 6-phosphogluconic acid and the derivative thereof are a type of cell glycometabolism regulators and diabetes treatment agents, have a remarkable regulation effect on islet alpha cells, and can be further prepared into a medicament for preventing or treating diabetes and other glycometabolism disorder diseases.

Abstract: An automatic positioning device for helical tomotherapy plan verification is provided. The device includes a base located on a treatment bed of helical tomotherapy equipment, a lifting platform fixedly connected to a top of the base, a three-dimensional verification phantom fixedly connected to other ends of the two support rods, and an early warning component. A bearing platform is fixedly connected to a top of the lifting platform, a moving platform is arranged on the bearing platform, and ends of two support rods are fixedly connected to a side, close to the treatment bed, of the moving platform. The three-dimensional verification phantom extends into a treatment aperture through the moving platform. The early warning component includes two early warning pieces respectively arranged on the two support rods.

Abstract: Instead of having a constant boundary, artificial reality (XR) applications that can run in boundaryless mode (e.g., in augmented or mixed reality) can be given controls by selective boundary system on an XR system to customize partial boundaries. For example, an application can specify to select particular boundaries when certain object types are in the real-world environment. In another example, an application can transition to different boundary modes when certain application events occur (e.g., when transitioning from virtual reality to mixed reality). On the backend, the selective boundary system can provide the application with an API that exposes boundary information. Based on this information, the application can use the API to create new boundaries or turn on or off certain boundaries based on requests by the application.

Abstract: Aspects of the present disclosure are directed to providing assisted scene capture for an artificial reality (XR) environment. Some implementations can obtain an XR space model corresponding to a real-world space, including walls, the ceiling, and the floor, using an XR system. Some implementations can then scan the real-world space and display a mesh corresponding to the scanned area overlaid onto a view of the real-world space. Some implementations can perform post-processing on the displayed mesh, which can include A) collapsing variations in the mesh corresponding to the walls, ceiling, or floor onto the XR space model; B) clipping the mesh to the XR space model for open doorways, windows, etc.; C) simplifying the mesh corresponding to the walls, ceiling, or floor; D) determining that the mesh is complete by identifying that a threshold percentage of the XR space model is covered by the mesh; or any combination thereof.

Abstract: Provided is a light backdoor attack method for a physical world. The method includes: generating, by a flashlight, a light trigger on a traffic sign; capturing and acquiring, by a camera, a backdoor training set, and marking all images in the backdoor training set as a target label; constructing a training set according to the backdoor training set and a clean training set; training a backdoor model using the training set to obtain a trained backdoor model; and evaluating effectiveness of light backdoor attack by applying the trained backdoor model to a testing set. The method can poison DNNs to achieve a more covert backdoor attack and provide a new idea for physical backdoor attack field.