Abstract: A light-splitting reflection high-concentration photovoltaic photothermal integrated cavity receiver includes a photothermal assembly and a photovoltaic assembly. The photothermal assembly includes a high-temperature heat storage system, a low-temperature heat storage system, a plurality of heat exchange tube bundles defining a reflective cavity, and an ultraviolet and visible light reflective film arranged on an inner surface of the reflective cavity. The plurality of heat exchange tube bundles are communicated to form a heat collection circuit, and the heat collection circuit has an input end connected with the low-temperature heat storage system, and an output end connected with the high-temperature heat storage system. The photovoltaic assembly is arranged at a focus of the reflective cavity, and includes a near-infrared reflective film, a high concentration photovoltaic integrated receiver and a concentration photovoltaic cooler stacked sequentially along an incident direction of light.

Abstract: A light-emitting panel and a manufacturing method thereof, and a light-emitting apparatus are provided, which relate to the technical field of photoelectric technology. The light-emitting panel includes: a light-emitting substrate including a light-emitting area and a non-light-emitting area surrounding the light-emitting area; a first packaging layer disposed at a light emitting side of the light-emitting substrate; a low refractive index layer disposed at a side of a first packaging layer away from the light-emitting substrate, the low refractive index layer being arranged around the light-emitting area; a high refractive index layer disposed at sides of the low refractive index layer and the first packaging layer away from the light-emitting substrate, an orthographic projection of the high refractive index layer on the light-emitting substrate covering the light-emitting area, and the high refractive index layer covering a side surface of the low refractive index layer facing the light-emitting area.

Abstract: A display panel comprises: a base substrate; a display function layer, comprising multiple light-emitting elements; a light-exit angle limiting layer, comprising a first light-blocking region and multiple first light-exit regions corresponding to multiple light-emitting elements on a one-to-one basis, an orthographic projection of each first light-exit region on the base substrate overlapping with an orthographic projection of a corresponding light-emitting element on the base substrate; a dimming function layer, comprising multiple dimming structures corresponding to multiple light-emitting elements on a one-to-one basis, an orthographic projection of each dimming structure on the base substrate not overlapping with an orthographic projection of a corresponding light-emitting element on the base substrate, the dimming structure being configured to change a direction of propagation of part of the light that is emitted by the corresponding light-emitting element and directed toward the first light-blocking reg

Abstract: The present invention belongs to the technical field of antibacterial drugs, and discloses a pyrrolylacylpiperidylamine compound and use thereof. The present invention in particular relates to a pyrrolylacylpiperidylamine compound and a pharmaceutically acceptable salt thereof, and use thereof in the preparation of a medicament for resisting infections with bacteria, mycoplasma or chlamydia.

Abstract: A solid target system for the radionuclide preparation, including a cassette, an ejection sub-system, a laser radar positioning sub-system, a cooling sub-system and a control cabinet. The cassette includes a solid target component for the nuclide preparation and a shielding box. The ejection sub-system is configured to eject the cassette to a recovery hole after the nuclide preparation is completed. The laser radar positioning sub-system is arranged above the ejection sub-system, and is electrically connected to the control cabinet. Both sides of the cassette are each provided with the cooling sub-system for cooling down the solid target component. The control cabinet is electrically connected to a direct-current servo motor for controlling an operating state thereof.

Abstract: A glycoside hydrolase, relating to the technical field of enzyme engineering/gene engineering. Provided are an enzyme of a GH112 glycoside hydrolase family, and an application of synthesizing human milk oligosaccharides (HMOs) by using an enzyme of a GH112 glycoside hydrolase family. A synthesis reaction is catalyzed by using the enzyme of the glycoside hydrolase family 112 (GH112) that is classified according to a Carbohydrate-Active-Enzymes (CAZy) database (http://www.cazy.org); and lacto-N-tetraose (LNT) is generated in an aqueous solution comprising lactose and/or galactose and/or galactose-1-phosphate and lacto-N-triose (LNTII). The enzyme of the glycoside hydrolase family 112 (GH112), and the preparation method therefor and the application thereof provided by the present invention have economic and social values.

Abstract: The present disclosure provides a speech processing method, and a method for generating a speech processing model, related to a field of signal processing technologies. The speech processing method includes: obtaining M speech signals to be processed and N reference signals; performing sub-band decomposition on each of the M speech signals and each of the N reference signals to obtain frequency-band components in each speech signal and each reference signal; processing the frequency-band components in each speech signal and each reference signal by using an echo cancellation model, to obtain an ideal ratio mask corresponding to the N reference signals in each frequency band of each speech signal; and performing echo cancellation on each frequency-band component of each speech signal based on the ideal ratio mask corresponding to the N reference signals in each frequency band of each speech signal, to obtain M echo-cancelled speech signals.

Abstract: An accelerated life test method for a speed reducer of an industrial robot is provided. The accelerated life test method includes: setting first load stress higher than rated load stress and second load stress lower than the rated load stress; performing an accelerated life test by loading the first load stress to first speed reducer samples; calculating a service life of each of the first speed samples in the accelerated life test; performing a contrast test by loading the second load stress to second speed reducer samples; calculating a service life of each of the second speed samples in the contrast test; and calculating an acceleration coefficient, and the acceleration coefficient is equal to a ratio of the service life in the accelerated life test to the service life in the contrast test.

Abstract: The present application provides a polypeptide having glycoside hydrolase activity, a related nucleic acid product and enzyme product thereof, a preparation method therefor, and use thereof in synthesis of human milk oligosaccharides (HMOS), particularly lacto-N-biose (LNB). The polypeptide having glycoside hydrolase activity of the present application is used as a catalyst, and can efficiently catalyze the reaction of acetylglucosamine or a carbohydrate having an acetylglucosamine group with a glycosyl donor to generate the lacto-N-biose (LNB). Moreover, a process for producing the LNB based on the peptide is simple and convenient to operate and has a significant increase in production efficiency, thus being more suitable for industrial production.

Abstract: An electronic device may have peripheral conductive housing structures, a display frame, a support plate, a logic board, and an antenna. The antenna may have a resonating element that includes a first slot between the logic board and a segment of the peripheral conductive housing structures, a second slot between the display frame and the segment, and optionally a third slot between the support plate and the segment. The slots may be at least partially overlapping, may have respective lengths, may be located at respective distances from a cover layer for the display, and may collectively receive radio-frequency signals in a frequency band such as the L5 GPS band. Switching circuitry and filter circuitry may be coupled to the antenna feed and/or to the antenna feed (s) of one or more adjacent antennas in the electronic device to help to isolate the antennas from each other.

Abstract: Embodiments of the present disclosure relate to a method, system, and computer program product for efficient execution of a decision tree. According to the method, respective target values of a plurality of attributes of a target entity are obtained. Representations of a plurality of leaf nodes of a decision tree are obtained. Each of the representations indicates respective statistic values of a plurality of attributes of historical entities and a statistic prediction result determined from historical prediction results output at a respective one of the plurality of leaf nodes for the historical entities. Distance measures between the target entity and the plurality of leaf nodes are determined based on the target values and the statistic values indicated by the representations of the plurality of leaf nodes. A target prediction result for the target entity is determined based on the distance measures and the statistic prediction results of the historical entities.

Abstract: A method and a system for identifying a glacial lake outburst debris flow (GLODF) are provided. The method is obtained based on considering induced influences of slopes of channels and particle sizes of source particles on the GLODF. The method not only compensates for deficiencies in identifying the GLODF, but also realizes determination of the GLODF, which provides data basis for disaster prevention and control layout such as monitoring and early warning on a glacial lake and assists preventing and managing disasters caused by the GLODF. Meanwhile, multiple parameters used in the method are easy and convenient to obtain, and the parameters can be directly used on site, which saves engineering cost, improves working efficiency, and has high practical and promotional value in environmental protection and disaster prevention and mitigation.

Abstract: A resonant converter has a primary resonant tank circuit and a secondary resonant tank circuit. An inverter circuit converts an input DC voltage received by the resonant converter at an input voltage node to a pulsating signal that is fed to the primary resonant tank circuit to generate a resonant tank current that flows through a primary winding of a transformer. The resonant tank current induces current in a secondary winding of the transformer. The induced current is rectified by a rectifier and the rectified signal is filtered to generate an output DC voltage at an output voltage node. The secondary resonant tank circuit is disposed between the secondary winding of the transformer and the output voltage node, and a tank node of the secondary resonant tank is connected to the primary resonant tank circuit through the inverter circuit.

Abstract: An obstacle recognition method and apparatus, a computer device, and a storage medium are provided. The method comprises: acquiring point cloud data scanned by LiDAR and time-sequence pose information of a vehicle (S101); determining a spliced image of a bird's eye view according to the point cloud data, the time-sequence pose information, and a historical frame embedded image (S102); inputting the spliced image into a preset first CNN model to obtain a current frame embedded image and pixel-level information of the bird's eye view (S103); determining recognition information of at least one obstacle according to the current frame embedded image and pixel-level information (S104).

Abstract: Devices, systems, methods, and techniques are disclosed herein for automatic testing with feature tags trained by machine learning for updates in version control systems. An example method includes deploying multiple updates in a code repository of a version control system and mapping the multiple updates using multiple feature labels. The multiple feature labels have been trained in a machine learning model to represent corresponding functional features. A processing device then identifies a subset of codes in the code repository. The subset of codes in the code repository is functionally affected by the multiple updates and is identified based on the multiple feature labels. The processing device performs a verification job on each of the subset of codes in the code repository in preparation for committing the multiple updates in the code repository.

Abstract: The present invention relates to electronic device and method for wireless communication system, and storage medium. An electronic device of a terminal device side for a wireless communication system, comprising: a processing circuit configured to: receive, from a base station, configuration information indicating that one or more of a plurality of synchronization signal blocks (SSBs) corresponding to the electronic device are measured when the electronic device is in an idle or inactive state, wherein the configuration information is sent on the basis that the electronic device is in a stationary state, and the configuration information comprises at least information indicating a first threshold; and in the period during which the electronic device is in the idle or inactive state, measure only the one or more of the plurality of SSBs having received signal strength higher than the first threshold when the electronic device is in a connected state.

Abstract: Provided are a display panel and a manufacturing method thereof, and a display device. The display panel includes: a base substrate; a pixel defining layer on one side of the base substrate and having a plurality of first openings for defining a plurality of sub-pixels, the plurality of first openings being in one-to-one correspondence to the plurality of sub-pixels; and an encapsulation layer on one side of the pixel defining layer away from the base substrate. The encapsulation layer includes: a first inorganic layer; a second inorganic layer on one side of the first inorganic layer away from the base substrate; an organic layer between the first inorganic layer and the second inorganic layer; and at least one first optical structure between the first inorganic layer and the organic layer. A refractive index of each first optical structure is greater than that of the organic layer.

Abstract: A wheel cover includes a fixing unit fixed to a wheel of a vehicle, a variable unit coupled to and supported by the fixing unit and configured for being opened and closed, a first power unit configured to apply a first force acting on the variable unit, wherein the force changes depending on temperature, and a second power unit configured to apply a second force acting on the variable unit, wherein the second force changes depending on a wheel speed, wherein the variable unit is opened or closed depending on the first force generated by the first power unit and the second force generated by the second power unit.

Abstract: The application relates to a swinging device, underwater bionic propeller and use thereof. The swinging device can include a swing mechanism including a swing arm. A driving end of a steering mechanism can be in transmission connection with the swing arm so as to drive the swing arm to swing in a reciprocating manner. A reciprocating mechanism can be provided which is in transmission connection with a fixed end of a steering driving component so as to drive the swing arm to rotate in a reciprocating manner by driving the steering mechanism to move. The steering mechanism drives the swing arm independently and changes the swinging area that the reciprocating mechanism drives the swing arm to swing in a reciprocating manner.

Abstract: A solid target system for the radionuclide preparation, including a cassette, an ejection sub-system, a laser radar positioning sub-system, a cooling sub-system and a control cabinet. The cassette includes a solid target component for the nuclide preparation and a shielding box. The ejection sub-system is configured to eject the cassette to a recovery hole after the nuclide preparation is completed. The laser radar positioning sub-system is arranged above the ejection sub-system, and is electrically connected to the control cabinet. Both sides of the cassette are each provided with the cooling sub-system for cooling down the solid target component. The control cabinet is electrically connected to a direct-current servo motor for controlling an operating state thereof.