Abstract: A low-jitter random clock generation circuit includes: a clock division and pulse generation module connected to an input clock, performing frequency division processing to obtain frequency division clocks, and then detecting some frequency division clocks one by one to obtain frequency division pulses in a one-to-one correspondence; a pseudorandom number generation module connected to one frequency division clock, and generating a pseudorandom number; a status control module connected to all the frequency division clocks and the pseudorandom number to generate status control signals; and a random clock output module connected to the input clock, all the frequency division clocks, all the frequency division pulses, and all the status control signals, randomly sampling the frequency division clocks by using the frequency division pulses under control of the status control signals, and synchronously outputting the randomly sampled frequency division clocks by using the input clock, to obtain random clocks.

Abstract: The present application relates to a floating connection conductor, a floating electric connector and a vehicle-mounted electronic device. The floating connection conductor comprises a welding part, a base-fixed part, a suspended floating part, a floating-fixed part and a contact part, wherein the base-fixed part is fixed to a base body; the floating-fixed part is fixed to a floating body, and the contact part is in conduction with and abuts against a plug connector; and the suspended floating part is located between the base-fixed part and the floating-fixed part and is bent to form a suspended section.

Abstract: Embodiments of the present disclosure disclose an image classification method and apparatus, an electronic device, and a storage medium. The method includes: extracting a first image feature of an image to be classified; extracting a first text feature of each description text in a description text set, wherein the description text set corresponds to a target image classification task, each description text is used to describe a respective image category under the target image classification task, and the description text set is updated as image categories are updated; determining a target text feature matching the first image feature from the first text features; and determining a target category of the image to be classified based on an image category corresponding to the target text feature.

Abstract: A method and apparatus, an electronic device, and a storage medium for image processing. The method for image processing includes: acquiring an image sequence of a target object in response to a live body detection trigger operation, wherein the image sequence includes an image to be detected (S110); determining, for the image to be detected, multiple frames of reference images associated with the image to be detected in acquisition time from the image sequence (S120); determining a risk factor of the image to be detected based on a region to be detected in the multiple frames of reference images, wherein the region to be detected at least includes a region where a verification organ performing a preset verification action is located, and the risk factor indicates whether the target object is a live body (S130).

Abstract: The present disclosure is related to systems and methods for image evaluation. The method may include obtaining an original image including a representation of at least one subject. The method may include generating a plurality of target positioning results for each of the at least one subject by inputting the original image into a prediction model. The prediction model may include a plurality of branches. Each of the plurality of target positioning results may correspond to a branch of the plurality of branches. The method may include determining an evaluation result corresponding to the original image based on the plurality of target positioning results.

Abstract: In one aspect, a stable-type electric-conducting terminal includes an electric-conducting terminal body, a first interdigital piece and a second interdigital piece that are formed on the electric-conducting terminal body. The electric-conducting terminal body is formed with an interdigital forming region, the first interdigital piece and the second interdigital piece both protrude from an inner wall of the interdigital forming region. The first interdigital piece and the second interdigital piece are parallel to each other, and an interdigital gap is formed between the first interdigital piece and the second interdigital piece. The electric-conducting terminal body is provided with a plurality of first blanking holes sequentially along an extending direction of the electric-conducting terminal body.

Abstract: The present disclosure relates to a method for identifying a sample data category, an identification model and a method for training it. The identification method comprises: inputting a sample to an identification model obtained by ensembling a plurality of sub-models including a plurality of branch models that are obtained by training full data of a training set through a preset loss function. Each branch model focuses on a focused category subset in the full data. The method further comprises identifying the category to which the input sample belongs according to the output of the identification model. Different loss functions are set through a plurality of branches respectively focusing on different category subsets in the full-scale training set, and the plurality of branches are finally ensembled to obtain an identification model with high identification capability for all data categories of the full data.

Abstract: A step-by-step paired and up-down reciprocating combined fishway and a fish passage method thereof, belonging to the technical field of fish passage facilities. The disclosure includes fishway units, a mechanical transmission system, a fish repelling system, a control system, and a recovery cableway. Under combined action of the mechanical transmission system and the fish repelling system, the fishway units reciprocate up and down step by step to form a fish passage way.

Abstract: This application discloses a model construction method and apparatus, a virtual avatar generation method and apparatus, a device, and a medium. The method includes: after acquiring avatar parameters to be used and a virtual avatar to be used corresponding to the avatar parameters to be used, first using a pre-constructed virtual avatar generation model to perform model inverse mapping processing on the virtual avatar to be used, to obtain a first latent code; then, inputting the first latent code to a pre-constructed real avatar generation model to obtain a real avatar to be used that is output by the real avatar generation model; and then, using the real avatar to be used and the avatar parameters to be used to construct a virtual avatar parameter determination model.

Abstract: A target object conveying system includes: a handling device; a conveying device; and a docking device, arranged at an end of the conveying device and configured to transfer a target object between the conveying device and the handling device, the docking device is provided with a power transmission mechanism in a comb-tooth structure; the handling device is provided with a top plate in a comb-tooth structure adapted to the power transmission mechanism, and the comb-tooth structures are configured to dock the top plate of the handling device with the power transmission mechanism; and the conveying device is configured to provide a conveying path for conveying the target object between the conveying device and an operation area.

Abstract: An image generation method, apparatus, and device, and a medium are provided. The method includes: acquiring a first image, keeping a target attribute in the first image unchanged, and editing other attributes in the first image; on the basis of the target attribute and the edited other attributes, generating a second image.

Abstract: Provided herein are methods and compositions for the prevention and treatment of nonalcoholic steatohepatitis (NASH) by targeting the CD24-Siglec axis.

Abstract: This application provides a method for reducing interference between a radar and an uplink frequency band. A first network device obtains a characteristic of a radar signal on the uplink frequency band, and determines a corresponding protection measure based on the characteristic of the radar signal, to reduce interference between the radar signal and the uplink frequency band. In this way, when 5G communication collides with the radar in time domain and frequency domain of the uplink frequency band, the 5G communication and the radar can still coexist. This improves utilization of a wireless spectrum.

Abstract: A dust collector that collects welding fumes includes: a tank that stores water in a non-full state; a first tower that stands upright from an upper surface of the tank, and is configured to receive air containing the welding fumes from an upper part of the first tower and to guide the air to the tank; a second tower that stands upright from the upper surface of the tank, and is configured such that air discharged from the tank passes through the second tower; a bottleneck structure portion in which a vertically intermediate part of the first tower is narrowed; a mist generator configured to generate mist in the first tower; and a filter housed in the second tower.

Abstract: This application provides an apparatus and a method for measuring chlorine ions in concrete, and relates to the technical field of chlorine ion measurement. The apparatus includes a first optical path system, a second optical path system, a spectrometer, and a central control unit, where the first optical path system includes a femtosecond laser device, an ablative focusing lens group, and a sample; and the second optical path system includes a heating light source, a dichroic mirror, a reflecting mirror, and a heating laser focusing lens group. According to this application, the femtosecond laser device is used as an ablative light source, improving sample ablation efficiency and resolving a problem that a chlorine ion spectral line is weak. In addition, a clustering algorithm is adopted in a sampling process in this application, resolving problems such as a large quantitative error and poor repeatability caused by non-heterogeneity of the concrete.

Abstract: A hybrid transactional/analytical processing (HTAP) database includes an online transaction processing (OLTP) engine, an online analytical processing (OLAP) engine provided separately from the OLTP engine, and a shared storage holding data of multiple tenants. The shared storage is configured to receive a request for a first scan from a first tenant and a request for a second scan from a second tenant, execute the first scan, and after a predetermined first period of time has elapsed without the first scan finishing, pause the first scan and execute the second scan.

Abstract: A power divider network includes a cover plate, a reflection plate, a support component, and a feed line. The reflection plate is arranged separately from the cover plate. A first surface of the reflection plate is a reflection surface. A plurality of connectors protrude from a second surface of the reflection plate opposite to the reflection surface. The plurality of connectors are arranged at intervals. The plurality of connectors are coupled with the cover plate and divide the space between the reflection plate and the cover plate into at least one hollow chamber. The support component is at least partially arranged in the hollow chamber. The feed line is arranged in the hollow chamber and mounted at the support component.

Abstract: The hybrid battery system includes a primary battery pack, a secondary battery pack, a battery control unit, a battery pack positive terminal, and a battery pack negative terminal. The battery control unit includes a management module and a variable resistor. The primary battery pack supplies power at lower temperatures, while the secondary battery pack supplies power at higher temperatures. The primary battery pack is unsafe at higher temperatures, and the primary cells within the primary battery pack are modified to mitigate the dangers that previously rendered the primary battery pack unusable in a hybrid battery pack at higher temperatures. The invention includes the method of safely operating the hybrid battery system with the modified primary battery cells of the primary battery pack.

Abstract: The present disclosure is related to systems and methods for image processing. The method includes obtaining an original image. The original image includes at least one blood vessel region and at least one scalp region. The method includes determining an intermediate image by removing the at least one scalp region from the original image. The method includes generating at least one target image by performing a maximum intensity projection operation on the intermediate image. The at least one target image represents the at least one blood vessel region in the original image.

Abstract: A controller initiates discharging of at least some cells of a traction battery based on data indicative of cell state of charge and cell capacity such that, upon completion of the discharging, states of charge of at least some of the cells are different, and after charging the cells with a same current for a same period of time, the states of charge fall with a predefined range of values.