Abstract: The method for displaying a multimedia resource includes: displaying a first multimedia resource on a multimedia display page; in response to a scene selection instruction, displaying scene representation information respectively corresponding to at least one viewing scene on the multimedia display page in a process of displaying the first multimedia resource; in which the scene representation information is configured to represent a corresponding viewing scene, and enter the corresponding viewing scene to browse a multimedia resource under the corresponding viewing scene in response to the scene representation information being triggered.

Abstract: Provided is a method for playing back a multimedia resource. The method includes: playing back the multimedia resource on a playback interface; playing back the multimedia resource in a multi-speed mode in response to a first multi-speed set operation on the playback interface, wherein the multi-speed mode corresponds to a reference playback multi-speed; and continuously playing back, in response to a progress adjust operation on the playback interface, the multimedia resource in the multi-speed mode using a playback progress corresponding to the progress adjust operation as a playback start point.

Abstract: A method for playing a video, an electronic device and a non-transitory computer-readable storage medium are provided. The method includes: playing, in response to a fast multiplied-speed playing operation performed on a playing interface of the video when the video is being played, the video according to a first multiplied playing speed which is associated with the fast multiplied-speed playing operation; and playing, in response to a multiplied-speed adjustment operation performed on the playing interface when the video is being played according to the first multiplied playing speed, the video according to a second multiplied playing speed which corresponds to the multiplied-speed adjustment operation, wherein the second multiplied playing speed is different with the first multiplied playing speed.

Abstract: The invention provides antibodies and related antibody agents that are cross-reactive with the spike proteins of multiple human coronaviruses. Also provided in the invention are methods and kits of using such antibodies in various diagnostic and therapeutic applications. In one aspect, the invention provides novel antibodies or antigen-binding fragments thereof that specifically bind to a human coronavirus spike protein.

Abstract: This application discloses a page displaying method and apparatus, an electronic device and a storage medium, relating to the technical field of computer vision, including: extracting a theme color from an image of a page to be displayed, and determining a coloration attribute of the theme color, where the coloration attribute is a chromatic attribute, or the coloration attribute is a non-chromatic attribute; and adjusting the page to be displayed according to the coloration attribute and displaying the page. Various pages are adjusted and displayed based on different coloration attributes of the theme color, thus avoiding a disadvantage related to lack of flexibility caused by filtering the theme color by a preset filtering range in related art, realizing diversity and flexibility in displaying for various pages, avoiding the disadvantage of distortion of images caused by simple filtering, and improving the reliability and accuracy of page display.

Abstract: The present disclosure provides a stannous salt complex catalyst and a method for producing L-lactide by using the same. The catalyst is obtained by reacting stannous salt and phosphite in a solvent, which can effectively inhibit the oxidation of divalent stannous ions to tetravalent tin ions, effectively reduce the conversion rate of meso-lactide, increase the yield of L-lactide, and obtain nearly white L-lactide. In the crude lactide produced after the depolymerization reaction, the content of L-lactide is more than or equal to 95 %; the content of meso-lactide is less than or equal to 3.8 %, while ensuring that the color of the residual liquid is close to milky white.

Abstract: A clamping device and a machining method. The clamping device comprises: a base; a clamping head comprising a blind rivet and a locking member, the blind rivet comprising a middle column segment and enlarged portions at two ends, and the locking member being connected to an upper end of the blind rivet and defining a clamping opening; a lower cavity connected to the base; an upper cavity comprising an annular peripheral wall and a top wall having a central hole, the top wall being clamped between the two enlarged portions, the middle column segment of the blind rivet movably passing through the central hole, and the upper cavity being connected to the lower cavity in a fit manner; an elastic member located in the peripheral wall and supported between the enlarged portion at a lower portion of the blind rivet and the top wall; and a support cylinder movably fitted in the lower cavity, the support cylinder being supported below the elastic member.

Abstract: The present disclosure discloses a neural network adaptive tracking control method for joint robots, which proposes two schemes: robust adaptive control and neural adaptive control, comprising the following steps: 1) establishing a joint robot system model; 2) establishing a state space expression and an error definition when taking into consideration both the drive failure and actuator saturation of the joint robot system; 3) designing a PID controller and updating algorithms of the joint robot system; and 4) using the designed PID controller and updating algorithms to realize the control of the trajectory motion of the joint robot. The present disclosure may solve the following technical problems at the same time: the drive saturation and coupling effect in the joint system, processing parameter uncertainty and non-parametric uncertainty, execution failure handling during the system operation, compensation for non-vanishing interference, and the like.

Abstract: The present disclosure provides SCR catalyst compositions capable of reducing nitrogen oxide (NOx) emissions in engine exhaust. The catalyst compositions include a reducible metal oxide support containing ceria, one or more transition metal oxides as a redox promotor; and an oxide of niobium, tungsten, silicon, molybdenum, or a combination thereof as an acidic promotor. The redox promotor and the acid promotor are both supported on the reducible metal oxide support. Further provided are SCR catalyst articles coated with such compositions, processes for preparing such catalyst compositions and articles, an exhaust gas treatment system including such catalyst articles, and methods for reducing NOx in an exhaust gas stream using such catalyst articles and systems.

Abstract: A retrieval method for surface ozone based on surface ultraviolet radiation irradiance includes: establishing a deep learning model; establishing a statistical relationship between input variables including surface UV irradiance, column ozone, elevation of a geolocation, year/month/date, latitude and longitude, and surface ozone concentrations at monitoring sites; matching a site-monitored surface ozone concentration with the surface UV irradiance and column ozone; training the deep learning model; estimating surface ozone concentrations in regions with available satellite observations based on the trained deep learning model; and inputting surface UV irradiance, column ozone, elevation of a geolocation, year/month/date, latitude and longitude into the trained deep learning model to estimate surface ozone concentration; evaluating an air quality based on the surface ozone concentration of the geolocation.

Abstract: An imputation method for surface ultraviolet irradiance based on feasible cloud information and machine learning includes: establishing a deep learning model, wherein the deep learning model is designed to be a two-layered stacking ensemble learning model; constructing a first layer of the deep learning model as combination of multiple fundamental machine learning models; constructing a second layer of the deep learning model as Lasso model, which integrates an output from the first layer to obtain a final retrieval result; matching the surface ultraviolet irradiance with input features comprising cloud and meteorological information according to the temporal and spatial variables; establishing a statistical relationship between the surface ultraviolet irradiance and by training the deep learning model; and estimating the surface ultraviolet irradiance based on the trained deep learning model in regions with missing satellite observations of the surface ultraviolet irradiance.

Abstract: A clamping device and a machining method. The clamping device comprises: a base; a clamping head comprising a blind rivet and a locking member, the blind rivet comprising a middle column segment and enlarged portions at two ends, and the locking member being connected to an upper end of the blind rivet and defining a clamping opening; a lower cavity connected to the base; an upper cavity comprising an annular peripheral wall and a top wall having a central hole, the top wall being clamped between the two enlarged portions, the middle column segment of the blind rivet movably passing through the central hole, and the upper cavity being connected to the lower cavity in a fit manner; an elastic member located in the peripheral wall and supported between the enlarged portion at a lower portion of the blind rivet and the top wall; and a support cylinder movably fitted in the lower cavity, the support cylinder being supported below the elastic member.

Abstract: Provided in the present invention are an anti-LAG3 monoclonal antibody and the use thereof. Further provided are a nucleotide molecule for encoding the antibody, an expression vector and a host cell for expressing the antibody, a composition containing the antibody, and the use of the antibody in the preparation of drugs for resisting tumors, treating autoimmune diseases, and treating infectious diseases and/or resisting transplantation rejection reactions.

Abstract: Embodiments of the present disclosure relate to a method, system and computer program product for service retention in a computing environment. According to the method, a deprovision request for deprovisioning a target service instance provisioned in a computing environment is received. In response to the deprovision request, a retention policy associated with the target service instance is determined. The retention policy indicates an action to be applied on the target service instance. The action causes a resource usage level of the target service instance to reduce. Based on the retention policy, the target service instance is modified to obtain a retention service instance provisioned in the computing environment for use in restoration of the target service instance.

Abstract: A system for smelting tin-containing materials is disclosed. The system includes a pretreatment mechanism, a screening mechanism, a feeding mechanism, a smelting mechanism, a slag treatment mechanism and a tail gas treatment mechanism. In addition, the disclosure discloses a method by using the above system.

Abstract: A method for displaying an image, an electronic device and storage medium are provided. The method includes: displaying, on a display interface of an information flow list, at least one resource in the information flow list; obtaining, in response to a first resource of the at least one resource being an image group and a position of an image container containing the image group being within a preset range of a screen, at least one image of the image group; and playing, according to a type of the image group, the at least one image of the image group dynamically.

Abstract: The present disclosure discloses a neural network adaptive tracking control method for joint robots, which proposes two schemes: robust adaptive control and neural adaptive control, comprising the following steps: 1) establishing a joint robot system model; 2) establishing a state space expression and an error definition when taking into consideration both the drive failure and actuator saturation of the joint robot system; 3) designing a PID controller and updating algorithms of the joint robot system; and 4) using the designed PID controller and updating algorithms to realize the control of the trajectory motion of the joint robot. The present disclosure may solve the following technical problems at the same time: the drive saturation and coupling effect in the joint system, processing parameter uncertainty and non-parametric uncertainty, execution failure handling during the system operation, compensation for non-vanishing interference, and the like.

Abstract: Embodiments of the present disclosure relate to a method, system and computer program product for service retention in a computing environment. According to the method, a deprovision request for deprovisioning a target service instance provisioned in a computing environment is received. In response to the deprovision request, a retention policy associated with the target service instance is determined. The retention policy indicates an action to be applied on the target service instance. The action causes a resource usage level of the target service instance to reduce. Based on the retention policy, the target service instance is modified to obtain a retention service instance provisioned in the computing environment for use in restoration of the target service instance.

Abstract: This application discloses a page displaying method and apparatus, an electronic device and a storage medium, relating to the technical field of computer vision, including: extracting a theme color from an image of a page to be displayed, and determining a coloration attribute of the theme color, where the coloration attribute is a chromatic attribute, or the coloration attribute is a non-chromatic attribute; and adjusting the page to be displayed according to the coloration attribute and displaying the page. Various pages are adjusted and displayed based on different coloration attributes of the theme color, thus avoiding a disadvantage related to lack of flexibility caused by filtering the theme color by a preset filtering range in related art, realizing diversity and flexibility in displaying for various pages, avoiding the disadvantage of distortion of images caused by simple filtering, and improving the reliability and accuracy of page display.