Abstract: Disclosed are a battery separator and a battery. The battery separator includes a substrate, a first coating layer and a second coating layer, and the first coating layer and the second coating layer are arranged opposite to one another on two sides of the substrate; the first coating layer includes first polymer particles and inorganic particles; and the second coating layer includes second polymer particles; Dv10 of the first polymer particles is denoted as A, and Dv50 of the first polymer particles is denoted as B; Dv90 of the inorganic particles is denoted as C; and 0.2?A/C?5; and 1?B/C?40. The battery separator of the present disclosure adheres well to an electrode plate in a battery cell, giving the battery cell excellent low-temperature dynamic performance. Meanwhile, the battery containing the battery has excellent safety performance and cycling performance.

Abstract: Systems and methods are provided for notifying users about videos in a playback sequence. The systems and methods determine that a video that meets a criterion is currently available on a video server associated with a messaging client. In response to determining that the video that meets the criterion is currently available, the messaging client on the client device prefetches a sequence of videos from a recommendation engine that match a profile of a user associated with the messaging client. The recommendation engine is being used to provide sequence of videos to a video playback graphical user interface (GUI) that automatically plays back the videos in the sequence. The systems and methods determine that the video that meets the criterion is in a first position in the sequence of videos and, in response, present a notification that indicates the availability of the video on the video playback GUI.

Abstract: The present disclosure belongs to the technical field of plant photoresponse and discloses a regression-based plant light environment-carbon sequestration benefit (a light response curve) determination method and system, and a medium. The method includes: performing data regression analysis by using various models; verifying data regression equations corresponding to the respective models; selecting a double hyperbolic curve regression model as an optimal one of the models; measuring red-blue light source by using a Li6400XT photosynthesis system; obtaining a light response curve through regression of the double hyperbolic curve; and obtaining corresponding formulas of light compensation (LCP) and a light saturation point (LSP) through regression. According to the present disclosure, a new double hyperbolic curve regression model is first adopted to fit the light response curve, so as to construct a more accurate photoresponse model.

Abstract: Provided is a light-source system, comprising excitation light source, first supplementary light source, first light-guiding assembly, wavelength conversion apparatus, and second light-guiding assembly. The excitation light source is for emitting excitation light; the first supplementary light source is for emitting first supplementary light. The first light-guiding assembly is for guiding the excitation light to the wavelength conversion apparatus. The wavelength conversion apparatus is for converting excitation light to excited light and irradiate onto the first light-guiding assembly. The first light-guiding assembly is for guiding excited light to irradiate onto the second light-guiding assembly. At least some components of the second light-guiding assembly are arranged on the light path from the first light-guiding assembly.

Abstract: Provided is a flexible support. The flexible support includes two first flexible support plates and one second flexible support plate. The second flexible support plate includes a first foldable region extending along a first direction, wherein the first foldable region includes a first side edge and a second side edge extending along the first direction; one of the two first flexible support plates is disposed on a side, distal from the second side edge, of the first side edge, the other of the two first flexible support plates is disposed on a side, distal from the first side edge of the second side edge, and the two first flexible support plates are respectively connected to two opposite side edges of the second flexible support plate. A material density of the first flexible support plate is less than a material density of the second flexible support plate.

Abstract: The present application discloses a boarding apparatus for an offshore platform, including a lifting apparatus and a track structure; the track structure is connected to a platform main body of the offshore platform and extends beyond the platform main body; the lifting apparatus is connected to the track structure, and the lifting apparatus is at least movable along the track structure with a moored sea transporting apparatus; the lifting apparatus includes a ride-on assembly for lifting transportation of a ride-on object between the track structure and the sea transporting apparatus. This thus overcomes the impossibility of boarding caused by marine environmental factors and improves boarding efficiency, and avoids damage caused by the collision between the sea transporting apparatus and the offshore platform when the sea transporting apparatus is berthed at the platform.

Abstract: The present disclosure provides a wind power generation apparatus, including a fan configured to obtain wind energy; a first generator, connected with the fan and a load and configured to convert the wind energy obtained by the fan into first electric energy and output the first electric energy to the load; a gas storage module, connected between the first generator and the load and configured to store or release gas; where when an output power of the first generator is greater than a load power of the load, the first generator drives the gas storage module to store a gas; and when the output power of the first generator is lower than the load power, the gas storage module releases a stored gas to generate second electric energy and output the second electric energy to the load.

Abstract: A method and apparatus for training a few-shot event detection model based on multilingual prompt learning are provided, which includes: acquiring a training data set, applying a multilingual prompt model to any instance to obtain a predicted probability distribution of a trigger tag, so as to obtain a first loss; generating a contrastive instance and a bilingual instance, and performing multilingual prompt and cross-lingual encoding according to the input instance and the bilingual instance by applying the multilingual prompt model to obtain joint event characterization; performing event tag prediction on the joint event characterization by applying a two-level hierarchical prototype network model, and calculating a second loss; performing contrastive learning on respective instances by applying a quaternary contrastive learning module to obtain a third loss; determining a total loss of the few-shot event detection model according to respective losses, and performing model training optimization based on the

Abstract: An automatic recognition method for a dry quasi-stationary front in Kunming, Yunnan, China is provided. The automatic recognition method includes: reading data; calculating, by a differential method, a temperature lapse rate between each layer of each point from a ground surface to 650 hPa, and acquiring a maximum inversion trend value; acquiring an initially selected inversion distribution based on the maximum inversion trend value; removing a nighttime clear sky radiation inversion, retaining only a frontal inversion, and binarizing (0, 1); finding a boundary between inversion and non-inversion; removing the abnormal candidate frontal points, and acquiring frontal nodes; removing meso- and micro-scale systems; and performing one-dimensional Gaussian filtering on longitude data of the frontal nodes, and connecting the filtered frontal nodes to acquire a quasi-stationary front in Kunming, Yunnan, China.

Abstract: The present disclosure describes techniques of metadata management for transparent block level compression. A first area may be created in a backend solid state drive. The first area may comprise a plurality of entries. The plurality of entries may be indexed by addresses of a plurality of blocks of uncompressed data. Each of the plurality of entries comprises a first part configured to store metadata and a second part configured to store compressed data. Each of the plurality blocks of uncompressed data may be compressed individually to generate a plurality of compressed blocks. Metadata and at least a portion of compressed data associated with each of the plurality of compressed blocks may be stored in one of the plurality of entries based on an address of a corresponding block of uncompressed data. A second area may be created in the backend solid state drive for storing the rest of the compressed data.

Abstract: A silicon-based anode material for secondary batteries, a preparation method thereof and a secondary battery are provided. The silicon-based anode material includes: an inner core including an Si particle and silicon oxide SiOx1, where 0<x1<2, a first shell layer including a compound of the general formula MySiOz (0<y?4, 0<z?5, and z?x1) and a C particle, wherein the first shell layer covers the inner core, and the contents of M and C in the first shell layer gradually increase from a side thereof close to the inner core to another side thereof far away from the inner core; and a second shell layer including a carbon film layer or a composite film layer formed by a carbon film layer and a conductive additive, the second shell layer covers the first shell layer. The first charge-discharge cycle capability of the silicon-based anode material is improved, and the manufacturing cost is reduced.

Abstract: A display device and a driving method thereof. The display device includes a display substrate and at least one optical sensing unit; the display substrate includes a light-emitting region and a plurality of pixel units located in the light-emitting region; wherein the light-emitting region comprises a single-sided light-emitting region and at least one double-sided light-emitting region, and each of the pixel units in the plurality of pixel units comprises a plurality of sub-pixels; and the at least one optical sensing unit corresponds to the at least one double-sided light-emitting region from a non-display side of the display substrate, and configured to sense light emitted by the sub-pixels during operation in the at least one double-sided light-emitting region, and to provide sensing brightness information of the at least one double-sided light-emitting region to perform brightness compensation on the light-emitting region.

Abstract: Systems and methods for space allocation for block device compression are provided. In particular, a computing device may receive an allocation request to write the compressed data, select a range list adequate for serving the allocation request from a plurality of range list, dequeue a range entry from the selected range list to allocate free space for the compressed data, and allocate the free space corresponding to the range entry to the compressed data to serve the allocation request.

Abstract: In an identity verification method for a network function service, a network element receives from a requesting network element a network function (NF) service request that includes a token, The token includes first certificate information. The network element verifies the first certificate information to determine whether an identity represented by the first certificate information is consistent with an identity of the requesting network element. When the network element determines that the identity represented by the first certificate information is inconsistent with the identity of the requesting network element, the network element rejects the NF service request.

Abstract: Embodiments of this application provide a PDCCH monitoring method. The method includes: A terminal device monitors a PDCCH on a first PDCCH candidate as indicated by network when at least one RE in the first PDCCH candidate overlaps with at least one RE in the first time-frequency resource as indicated by the network.

Abstract: Disclosed are a positive electrode plate, a battery cell, and a battery. The positive electrode plate includes a current collector, an active material layer, a first and a second insulation layer, where the current collector includes a first and a second surface disposed opposite each other; first surface includes a first, a second, and a third region along a short side; and second surface includes a fourth, a fifth, and a sixth region along a short side; active material layer is disposed in second and fifth region; first insulation layer is disposed in the first, third, fourth, and sixth region; and second insulation layer is disposed on active material layer and first insulation layer. The positive and negative electrode plate have a same width, to resolve a problem of poor coverage of a positive electrode and a negative electrode, thereby greatly improving safety of a battery.

Abstract: The present disclosure relates to a technical field of preparation of zeolite molecular sieve catalysts, and in particular relates to a preparation method of a metal oxide loaded nano zeolite particle catalyst. In the preparation method, industrial ?-alumina balls are treated with a quaternary ammonium alkali solution, then pretreated ?-alumina balls are mixed with a zeolite precursor solution and are hydrothermally crystallized. Then a two-step high-temperature heat treatment is performed to obtain an alumina loaded zeolite nano particle material, solving problems of large zeolite dosage and poor dispersion in hydrocracking catalysts. Finally, the metal oxide loaded nano zeolite particle catalyst is obtained by combining transition metals. Nano zeolite particles prepared regulate a surface acidity of alumina, and exfoliated zeolites may be used independently as a catalyst, which saves cost and improves a utilization of the zeolites.

Abstract: The present application provides a vertical axis wind turbine and a floating body. The vertical axis wind turbine includes a tower, a main shaft, a supporting rod and a blade; where the main shaft is connected with the tower, and the main shaft is provided to be rotatable around a central axis of the tower; the blade is connected to the main shaft by the supporting rod; the tower is retractable. In the present application, the tower and the blade of the vertical axis wind turbine can be contracted, or the tower and the blade can be put down after contraction, or the tower and the blade can be contracted and then stored below a deck, thus reducing the space occupied by the vertical axis wind turbine on the deck of the floating body to meet different operation requirements of the floating body.

Abstract: System and techniques for vehicle operation safety model (VOSM) compliance measurement are described herein. A subject vehicle is tested in a vehicle following scenario against VOSM parameter compliance. The test measures the subject vehicle activity during phases of the following scenario in which a lead vehicle slows and produces log data and calculations that form the basis of a VOSM compliance measurement.

Abstract: A communication method and a communications device, where the communication method includes: When a user equipment roams from a first network to a second network, a first core network device receives a first request, where the first request is a user authentication request or an authentication data request, where the first request carries an authentication vector request indication, where the second network is a 5G standalone network, where the first network is a 5G non-standalone network, and where the first core network device is in the first network. The first core network device generates an authentication vector quintet based on the authentication vector request indication, where a 0th bit of an authentication management field in the authentication vector quintet is set to 1. The first core network device sends a response to the first request, where the response to the first request carries the authentication vector quintet.