Abstract: The application provides a downlight emergency power supply device, including an emergency power box having an accommodation cavity; a connection structure configured to fix a luminaire to the emergency power box, and comprising two clamping assemblies arranged oppositely, wherein the clamping assemblies are elastically connected to an outer side of the emergency power box; and a power supply assembly, fixed in the accommodation cavity, and configured to supply power to the luminaire; wherein the two clamping assemblies clamp and fix the luminaire in an inward or outward rebound state. By setting two clamping assemblies to clamp and fix the luminaire on the emergency power supply, it is simpler and less time-consuming to assemble than the screw mounting method used in the related art, without the need for manual screwing. Besides, the two clamping assemblies of the connection structure can be automatically clamped, achieving semi-automatic assembly, which is convenient and efficient.

Abstract: A refrigeration system includes a compressor for compressing a refrigerant, a condenser for cooling the refrigerant, an evaporator for heating the refrigerant, and a lubrication system for providing a lubricant mist to a movable component of the compressor. The lubrication system includes an ejector arranged in fluid communication with the compressor and the evaporator, wherein the lubricant mist is carried by the refrigerant to the movable component.

Abstract: A submicron-sized Pickering miniemulsion system stabilized by carbon quantum dots solid nanoparticles for biphasic catalysis is disclosed, which breaks the existing limits for homogenization of the immiscible biphasic system and overcomes the issues for big size of solid particles-stabilized emulsion droplets. A method for producing the carbon quantum dot-based catalysts and a process of establishing the Pickering miniemulsion system for biphasic reaction with enhanced catalytic efficiency are also disclosed. The carbon quantum dot-stabilized Pickering miniemulsion features a pH-responsive behavior, with a reversible transition between the emulsification and demulsification, triggering the easy & facile product separation and emulsifier/catalyst recycling in one reaction vessel.

Abstract: Disclosed are a system and a method for capturing a space target. The system includes a plurality of capturing devices, a delivery device, a launching device, and a deceleration and recovery device, each of the plurality of capturing devices is configured to be launched into a target orbit to capture a defunct space target, the delivery device is configured to deliver, along a preset delivery trajectory, each of the plurality of capturing devices to a first preset location in the launching device, the launching device is configured to launch each of the plurality of capturing devices located at the first preset location into the target orbit to capture the defunct space target, and the deceleration and recovery device is configured to decelerate each of the plurality of capturing devices after it is launched and flies a preset distance.

Abstract: A modified IgG antibody binds and neutralizes TGF?l selectively and with high affinity and avidity. The modified IgG antibody comprises four polypeptide chains and may comprise modifications to the elbow regions of the polypeptide chains. The modified IgG antibody may comprise the same VH and VL domains or CDR regions as metelimumab. The modified IgG anti-body is useful in therapeutic and diagnostic applications.

Abstract: The current disclosure provides binding polypeptides (e.g., antibodies), and targeting moiety conjugates thereof, comprising a site-specifically engineered glycan linkage within native or engineered glycans of the binding polypeptide. The current disclosure also provides nucleic acids encoding the antigen-binding polypeptides, recombinant expression vectors and host cells for making such antigen-binding polypeptides. Methods of using the antigen-binding polypeptides disclosed herein to treat disease are also provided.

Abstract: A battery pack and a vehicle are provided. The battery pack includes a base plate assembly, a side beam assembly, and at least one battery cell group. The side beam assembly is disposed at an outer periphery of the base plate assembly. The side beam assembly and the base plate assembly define an accommodating cavity, and the accommodating cavity includes at least one installation area. The installation area is provided with the battery cell group. The battery cell group includes a plurality of battery cells, and the plurality of battery cells are fixedly disposed on the base plate assembly. According to the battery pack and the vehicle, each battery cell is fixedly disposed on the base plate assembly in the installation area. The plurality of the battery cells disposed in installation area defines a battery cell group.

Abstract: The present disclosure provides a video generation method, an apparatus, a system, a device and a storage medium. The method is applied to a video generation system, and the video generation system includes a first client and at least one second client. Specifically, the method includes: firstly, the first client creates a first virtual room and sets a target capturing effect for the first virtual room; then, the second client acquires a first video added with the target capturing effect after receiving a notification message that a current user has successfully joined the first virtual room, and uploads the first video to the first virtual room. Further, the first client acquires a target video from the first virtual room and generates a target result video based on the target video, and the target video includes the first video.

Abstract: Embodiments of this application provide example holographic recording media, holographic polymer materials, methods for preparing holographic polymer materials, and display devices. An example holographic recording medium includes a first-order crosslinked network, a photoinitiator, and a second-order monomer. The first-order crosslinked network provides a mechanical support for the holographic recording medium. The second-order monomer includes a monomer with a free radical reactivity. The photoinitiator is used to initiate polymerization of the second-order monomer. The holographic recording medium includes at least one of an ester group (I), a urethane group (II), a carbamido group (III), an allophanate group (IV), or an amide group (V). Groups linked to the ester group (I), the urethane group (II), the carbamido group (III), the allophanate group (IV), and the amide group (V) are separately selected from at least one of the following: alkyl, alkoxy, alkenyl, or aryl.

Abstract: Maintenance is performed to determine one or more content files associated with a stored backup snapshot having a size that is greater than a threshold size. It is determined that the size of a content file of the one or more content files is greater than the threshold size. In response to determining that the size of the content file is greater than the threshold size, a new tree data structure is generated and a component file metadata structure corresponding to the content file is split into a plurality of component file metadata structures for the content file.

Abstract: The present application discloses a battery cell module and a battery system. The battery cell module includes a plurality of battery cell assemblies. Each of the battery cell assemblies includes a battery cell, an end cover, and a base. A first end of the battery cell is connected to the end cover, and a second end of the battery cell is connected to the base. End covers of adjacent ones of the battery cell assemblies are detachably connected to each other, and bases of the adjacent ones of the battery cell assemblies are detachably connected to each other.

Abstract: A medical tissue adhesive and a preparation method thereof. The medical tissue adhesive includes: a functional component, an assistant crosslinker and a dispersing agent. The functional component is a polymer chain modified by tissue adhesive group or a micro nano particle modified by tissue-adhering functional groups. The tissue-adhering functional groups includes: o-nitrobenzyl photoplate group, active ester group or carbonyl group. The medical tissue adhesive not only uses the dispersing agent to expel the tissue fluid/blood on the tissue surface, so that the adhesive molecular segment quickly forms a chemical bond with the amino group on the tissue surface to form a strong tissue adhesive force. But the medical tissue adhesive can also trigger the adhesive molecular segment to react with the amino group on the assistant crosslinker, so that the medical tissue adhesive can quickly gel and solidify. Therefore, it has good bleeding performance, hemostatic performance and tissue adhesion performance.

Abstract: The present application provides a battery module and an electric vehicle. The battery module includes a case, a longitudinal beam, and a tray. The case is provided with at least one exhaust port. The longitudinal beam is disposed in the case and is abutted against a bottom surface of the case to partition accommodating areas in the case on both sides of the longitudinal beam along a width direction. The tray is disposed in one of the accommodating areas and is configured to install a battery cell. A through hole opposite to an end of the battery cell is defined on the tray, the tray is spaced from the bottom surface of the case to define a pressure relief cavity, the through hole and the exhaust port are respectively communicated with the pressure relief cavity.

Abstract: The present application provides a battery box body and a battery module. The battery box body incudes a base plate assembly and a side beam assembly, where the base plate assembly is divided into a first region and a second region. Where a first pressure relief cavity is defined by an outer plate and an inner plate of the base plate assembly, the battery cells are occluded on a portion of a cavity wall of the first pressure relief cavity. A second pressure relief cavity is defined by the support plate and the inner plate, and other portion of the cavity wall of the first pressure relief cavity is communicated with the second pressure relief cavity. A third pressure relief cavity is defined by an inner cavity of the side beam assembly, the side beam assembly is installed with a pressure relief valve communicated with the third pressure relief cavity.

Abstract: The present disclosure relates to a technical field of chiral compound synthesis, and particularly to chiral or racemic pyrimidine-fused diazepinone derivatives, preparation method, and application thereof. A structural formula of the chiral or racemic pyrimidine-fused diazepinone derivatives or pharmaceutically acceptable salts thereof is as shown in formula (I), The present disclosure further provides a preparation method of the chiral or racemic pyrimidine-fused diazepinone derivatives, the method includes using pyrimidine allyl compound intermediates as raw materials, using iridium complexes formed by an interaction between iridium compounds and phosphoramidite ligands as catalysts, and obtaining the chiral or racemic pyrimidine-fused diazepinone derivatives by reactions under action of alkalis.

Abstract: Embodiments of the present disclosure provide a data labeling method, an apparatus, a device, a computer-readable storage medium and a product. The method includes: in response to a trigger operation performed by a user on a preset labeling button on a display interface, entering a labeling mode, the display interface including: graphical information of at least one analysis object arranged along a time axis; in response to a selection operation performed by the user on at least one time range of the graphical information corresponding to the at least one analysis object within the display interface, determining a target labeling area corresponding to the selection operation of each time range, each time range being used for representing a different time period on the time axis; in response to a labeling operation on at least one target labeling area, generating labeling information corresponding to the at least one target labeling area.

Abstract: A telescope, including a microdisplay, a beam combiner, a dichroitic beam splitter, and an image sensor. The beam combiner receives light from an objective lens and the microdisplay, and mixes same. The dichroitic beam splitter allows at least part of invisible light and a small part of visible light having a predetermined wavelength to enter a second optical path leading to the image sensor. The image sensor obtains a detection image representing an optical image formed by the objective lens and an electronic image displayed on the microdisplay. Also disclosed are an electronic eyepiece and an eyepiece adapter for the telescope. The detection image representing the optical image and the electronic image can be obtained.

Abstract: An atomizer and an aerosol generating device are provided. An atomizing assembly and a sealing seat are provided in an accommodating cavity of a liquid storage member, and the atomizing assembly is supported on the sealing seat, so that the portion of the interior of the liquid storage member other than the atomizing assembly and the sealing seat defines a liquid storage cavity, and an atomizing cavity is provided inside the atomizing assembly. The liquid storage cavity is communicated with the atomizing cavity through a liquid inlet hole. An air inlet hole is formed on the liquid storage member, and an air inlet passage that communicates the atomizing cavity with the air inlet hole is formed on the sealing seat. Before the aerosol generating device is put into use, the air inlet passage is sealed by a plugging assembly.