Abstract: Embodiments of the present invention relate to methods, systems, and computer program products for file management in a distributed file cache system. In some embodiments, a method is disclosed. According to the method, responsive to determining that at least one client node is obtaining a file of a first version stored at a storage node, one or more processors generate contact information indicating that the file of the first version is accessible from the storage node and the at least one client node and recorded the contact information into a distributed hash table. The storage node and the at least one client node are included in a plurality of nodes associated with the distributed hash table. Further, one or more processors generate first version information indicating that the file is of the first version and record the first version information into a blockchain associated with the plurality of nodes.

Abstract: Apparatuses and methods for protecting transistors through charge sharing are disclosed herein. An example apparatus includes a transistor comprising a gate node and a bulk node, a charge sharing circuit coupled between the gate and bulk nodes, and logic. The charge sharing circuit is configure to equalize charge differences between the gate and bulk nodes, and the logic is configured to enable the charge sharing circuit based at least in part on a combination of first and second signals, which indicate the presence of a condition.

Abstract: Embodiments of this application disclose a camera attitude tracking method and apparatus, a device, and a system in the field of augmented reality (AR). The method includes receiving, by a second device with a camera, an initial image and an initial attitude parameter that are transmitted by a first device; obtaining, by the second device, a second image acquired by the camera; obtaining, by the second device, a camera attitude variation of the second image relative to the initial image; and obtaining, by the second device, according to the initial attitude parameter and the camera attitude variation, a second camera attitude parameter, the second camera attitude parameter corresponding to the second image.

Abstract: A method for determining a pose of an image capturing device is performed at an electronic device. The electronic device acquires a plurality of image frames captured by the image capturing device, extracts a plurality of matching feature points from the plurality of image frames and determines first position information of each of the matching feature points in each of the plurality of image frames. After estimating second position information of each of the matching feature points in a current image frame in the plurality of image frames by using the first position information of each of the matching feature points extracted from a previous image frame in the plurality of image frames, the electronic device determines a pose of the image capturing device based on the first position information and the second position information of each of the matching feature points in the current image frame.

Abstract: The present disclosure relates to a cleaning device and a sweeping assembly thereof. The sweeping assembly includes: a brush holder; a brush body arranged in the brush holder, and including a cleaning part and a connecting part connected to each other, the connecting part being further connected to the driver to rotate the brush body, the cleaning part including a brush member protruding outward therefrom; and an anti-winding structure arranged at the connecting part, and configured to fill up a gap between the brush holder and the connecting part.

Abstract: Embodiments of this application disclose a position and attitude determining method. The method includes acquiring, by tracking a feature point of a first marked image, position and attitude parameters of an image captured by a camera; using a previous image of a first image as a second marked image in response to the previous image of the first image meeting a feature point tracking condition and the first image failing to meet the feature point tracking condition; acquiring, position and attitude parameters of the image captured by the camera relative to the second marked image; acquiring position and attitude parameters according to the position and attitude parameters of the image relative to the second marked image and position and attitude parameters of each marked image relative to a previous marked image; and determining a position and an attitude of the camera according to the position and attitude parameters.

Abstract: Apparatuses and methods for protecting transistors through charge sharing are disclosed herein. An example apparatus includes a transistor comprising a gate node and a bulk node, a charge sharing circuit coupled between the gate and bulk nodes, and logic. The charge sharing circuit is configure to equalize charge differences between the gate and bulk nodes, and the logic is configured to enable the charge sharing circuit based at least in part on a combination of first and second signals, which indicate the presence of a condition.

Abstract: Embodiments of this application disclose a position and pose determining method performed at an electronic device. The method includes: acquiring, by tracking a first feature point extracted from a marked image, position and pose parameters of a first image captured by a camera relative to the marked image; extracting a second feature point from the first image in a case that the first image fails to meet a feature point tracking condition; and acquiring, by tracking the first feature point and the second feature point, position and pose parameters of a second image captured by the camera relative to the marked image, and determining a position and a pose of the camera according to the position and pose parameters, the second image being an image captured by the camera after the first image.

Abstract: The present disclosure relates to an image processing method and apparatus, an electronic device and a computer readable medium. The image processing method includes: acquiring an image to be processed, the image to be processed including a target portrait; obtaining a target three-dimensional (3D) model by performing a 3D reconstruction operation on the target portrait in the image to be processed; obtaining a portrait lighting image by performing portrait lighting processing on the target 3D model, and extracting a first image including the target portrait from the portrait lighting image; and merging a second image including a photographic background cloth and the first image into a target image, the second image being used as a background image of the first image.

Abstract: Compositions and treatments for inducing tumor regression by activating inflammasomes in tumor cells and tumor-associated cells. A tumor in a subject is treated by administering a composition to the subject that activates inflammasomes in cells of the tumor and thereby causes tumor cell pyroptosis and tumor regression.

Abstract: The present disclosure relates to an automatic cleaning device and a sweeping assembly thereof. The sweeping assembly includes: a brush holder, a brush body disposed at least partially in the brush holder; and an anti-winding structure. The anti-winding structure is located at a joint of the brush body and the brush holder, where the anti-winding structure is configured to at least partially fill a gap at the joint when the sweeping assembly is in a working state.

Abstract: A reconfigurable voltage regulator for use in a system having a multiple power domains includes a power detecting circuit and a charge pump. The power detecting circuit is coupled to a power supply and configured to partition a power range of the power supply into multiple voltages zones corresponding to the multiple power domains of the system and provide a pump enable signal associated with a specific power domain among the multiple power domains. The charge pump includes multiple pump stages arranged in a matrix, wherein each pump stage is activated or deactivated according to a corresponding bit of the pump enable signal.

Abstract: The present disclosure relates to an image processing method and apparatus, an electronic device and a computer readable medium. The image processing method includes: acquiring an image to be processed, the image to be processed including a target portrait; obtaining a target three-dimensional (3D) model by performing a 3D reconstruction operation on the target portrait in the image to be processed; obtaining a portrait lighting image by performing portrait lighting processing on the target 3D model, and extracting a first image including the target portrait from the portrait lighting image; and merging a second image including a photographic background cloth and the first image into a target image, the second image being used as a background image of the first image.

Abstract: Apparatuses and methods for protecting transistors through charge sharing are disclosed herein. An example apparatus includes a transistor comprising a gate node and a bulk node, a charge sharing circuit coupled between the gate and bulk nodes, and logic. The charge sharing circuit is configure to equalize charge differences between the gate and bulk nodes, and the logic is configured to enable the charge sharing circuit based at least in part on a combination of first and second signals, which indicate the presence of a condition.

Abstract: Apparatuses and methods for protecting transistors through charge sharing are disclosed herein. An example apparatus includes a transistor comprising a gate node and a bulk node, a charge sharing circuit coupled between the gate and bulk nodes, and logic. The charge sharing circuit is configure to equalize charge differences between the gate and bulk nodes, and the logic is configured to enable the charge sharing circuit based at least in part on a combination of first and second signals, which indicate the presence of a condition.

Abstract: A method for controlling a ceiling fan motor includes: setting a target value of rotational speed and a limited value of rotational torque; controlling the ceiling fan motor to operate; obtaining operation information of the ceiling fan motor; calculating a current rotational speed and a current rotational torque according to the operation information; determining whether the current rotational torque is greater than or equal to the limited value of rotational torque; performing a constant rotational torque operation when the current rotational torque is greater than or equal to the limited value of rotational torque; determining whether the current rotational speed reaches the target value of rotational speed when the current rotational torque is less than the limited value of rotational torque; performing a constant rotational speed operation when the current rotational speed reaches the target value of rotational speed; and increasing torque current of the ceiling fan motor.

Abstract: A method for controlling a ceiling fan motor includes: setting a target value of rotational speed and a limited value of rotational torque; controlling the ceiling fan motor to operate; obtaining operation information of the ceiling fan motor; calculating a current rotational speed and a current rotational torque according to the operation information; determining whether the current rotational torque is greater than or equal to the limited value of rotational torque; performing a constant rotational torque operation when the current rotational torque is greater than or equal to the limited value of rotational torque; determining whether the current rotational speed reaches the target value of rotational speed when the current rotational torque is less than the limited value of rotational torque; performing a constant rotational speed operation when the current rotational speed reaches the target value of rotational speed; and increasing torque current of the ceiling fan motor.

Abstract: A method, computer-readable medium, and a computer system for processing data are disclosed. First data associated with a search may be accessed. Second data may be accessed from a database using the first data, where the second data may be associated with at least one sentiment of the first data. The second data may include at least one score, at least one classification, and at least one degree, some combination thereof, etc. Third data may be generated, based on the second data, for performing at least one operation associated with the search results. The at least one operation may include filtering the search results, ranking the search results, displaying an image associated with the at least one sentiment, some combination thereof, etc.