Abstract: A network bandwidth estimation method and apparatus, an electronic device and a storage medium are provided. The method includes: sending a bandwidth test file to a service terminal, and respectively acquiring network state parameters before and after sending the bandwidth test file, wherein a volume of the bandwidth test file is less than a preset file volume threshold; determining a first network bandwidth and a second network bandwidth based on the network state parameters and the volume of the bandwidth test file; inputting the network state parameters, the first network bandwidth, and the second network bandwidth into a current latest network bandwidth estimation model to obtain a target network bandwidth estimation result.

Abstract: A LED includes: a metal substrate including a first metal layer; a semiconductor layer sequence disposed on the metal substrate, where the semiconductor layer sequence includes a first semiconductor layer, a second semiconductor layer and an active layer disposed between the first semiconductor layer and the second semiconductor layer; a first electrode, electrically connected to the first semiconductor layer; and a second electrode, electrically connected to the second semiconductor layer. A side of the metal substrate facing away the semiconductor layer sequence defines a groove, a second metal layer is disposed in the groove, the metal substrate includes a groove edge which is protruded, and the groove edge is no more than 0.5 ?m higher than the second metal layer, enhancing the reliability of the LED in the packaged bonding product.

Abstract: An energy storage converter and an energy storage system are provide. The energy storage converter includes: a DC switching power supply circuit configured to provide a first power supply using DC power from the DC side port; an AC switching power supply circuit configured to provide a second power supply using AC power from the AC side port; a power supply circuit configured to supply power to the energy storage converter using the first power supply or the second power supply; and a control circuit configured to, based on an operation state of the energy storage converter, control the DC switching power supply circuit or the AC switching power supply circuit to provide the power supply circuit with power supply. A power supply mode is selected based on an operation state of the energy storage converter. The DC/AC switching power supply circuit independently supplies power at the same time.

Abstract: A case for an electronic device can include a case body including an exterior surface and an interior surface, the interior surface being positioned opposite the exterior surface. The case can additionally include a button body positioned at least partially within the case body between the exterior surface and the interior surface, the button body being movable inward and outward relative to the case body along an axis of button travel. The case can further include a biasing structure having a contact surface configured to contact the button body, the biasing structure configured to bias the button body toward the interior surface along the axis of button travel.

Abstract: Provided are establishment and suspension acclimation of a Crandell Reese Feline Kidney (CRFK) adherent cell line, and its application. The CRFK cell line, named CRFK-BLA, is deposited at the China General Microbiological Culture Collection Center (CGMCC), with the address being Institute of Microbiology, Chinese Academy of Sciences, No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing, the deposit number being CGMCC NO: 45703; the CRFK cell line was classified and named CRFK cells, and was deposited on Aug. 17, 2023. A serum-free complete suspension culture type CRFK cell line obtained by acclimation on the basis of CRFK-BLA is named CRFK-BLS, and is deposited at the China General Microbiological Culture Collection Center (CGMCC), with the address being Institute of Microbiology, Chinese Academy of Sciences, No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing, the deposit number being CGMCC NO: 45704; the CRFK cell line was classified and named CRFK suspension cells.

Abstract: Provided are establishment and suspension acclimation of a Crandell Reese Feline Kidney (CRFK) adherent cell line, and its application. The CRFK cell line, named CRFK-BLA, is deposited at the China General Microbiological Culture Collection Center (CGMCC), with the address being Institute of Microbiology, Chinese Academy of Sciences, No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing, the deposit number being CGMCC NO: 45703; the CRFK cell line was classified and named CRFK cells, and was deposited on Aug. 17, 2023. A serum-free complete suspension culture type CRFK cell line obtained by acclimation on the basis of CRFK-BLA is named CRFK-BLS, and is deposited at the China General Microbiological Culture Collection Center (CGMCC), with the address being Institute of Microbiology, Chinese Academy of Sciences, No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing, the deposit number being CGMCC NO: 45704; the CRFK cell line was classified and named CRFK suspension cells.

Abstract: The present invention relates to the field of coal mine concealed fire zone detection, in particular to a coal spontaneous combustion downhole detection system and method based on a self-potential method. The coal spontaneous combustion downhole detection system comprises a self-potential detection apparatus and a self-potential processing apparatus; the self-potential detection apparatus comprises measuring electrodes, a reference electrode and metal anchor rods; the measuring electrodes are arranged on a top plate of a goaf roadway, are fixed to the metal anchor rods, and are in wireless connection with the reference electrode through the metal anchor rods; the self-potential processing apparatus comprises a data processing sensor for processing potential data and an imaging sensor for converting data into images; and the measuring electrodes and the reference electrode are in wireless connection with the data processing sensor.

Abstract: Presented are systems and methods for augmented reality (AR) communication based on data channel. A first wireless communication device may communicate with a wireless communication node to share computer-generated perceptual information via a data channel. A media content can be rendered with the computer-generated perceptual information.

Abstract: An accessory device includes multiple walls and textile layers covers the walls. The textile layers may be of the same materials. However, one of the textile layers may include a film that provides protections against stains and fraying. The textile layers may come together at a seam. Accessory devices may include a shell that includes a pocket used to seat the textile layers in order to form the seam. An additional seam may be formed by two ends of a textile layer. The additional seam may be supported by a reinforcement layer, and may also align with an opening formed in the accessory device.

Abstract: An electronic device may include a display having a waveguide that propagates image light and having optics such as a tint layer or bias lens mounted to the waveguide by a ring of adhesive. The ring may laterally surround an air cavity between the optics and the waveguide. A surface relief grating may be mounted to the waveguide within the air cavity. One or more air flow channels may be provided in the ring of adhesive and/or the optics to constrain air flow out of the air cavity on the time scale of a drop or impact event. This may configure the air cavity to maintain its volume during the event, effectively forming an air cushion for components in the air cavity. The air flow channels may pass air between the air cavity and the environment on the time scale of environmental ambient pressure changes.

Abstract: A trajectory data processing method is provided to a trajectory data apparatus. The method includes: obtaining trajectory data in a target geographical range, the trajectory data including moving trajectories of a plurality of moving objects, generating a feature map layer of the trajectory data, the feature map layer at least including a trajectory flow map layer, a moving speed map layer, and a travel direction map layer, fusing map layers in the feature map layer to obtain a fused feature map layer; displaying the fused feature map layer; and in response to obtaining a selection instruction of any pixel position on the fused feature map layer, displaying a trajectory flow at the pixel position and a moving speed and a travel direction of a moving object at the pixel position.

Abstract: The present application discloses a secondary battery, a method for preparing the same, a copolymer and an apparatus. The secondary battery includes a binder for binding a first substance and a second substance, the binder including a copolymer, wherein the copolymer comprises at least a first monomer unit represented by formula (I), a second monomer unit represented by formula (II), and a third monomer unit represented by formula (III): The secondary battery provided by the present application can effectively increase the boding force between the first substance and the second substance by including a specific binder, thereby improving the electrochemical performance of the secondary battery.

Abstract: A wireless communication method for use in a first wireless network node is disclosed. The method comprises transmitting, by a wireless communication terminal to a session management node, a Proxy Call Service Control Function, P-CSCF, address request indication; and receiving, by the wireless communication terminal from the session management node, a P-CSCF address list in response to the P-CSCF address request indication, wherein at least one P-CSCF indicated in the P-CSCF address list has a data channel capability.

Abstract: Method, device and computer program product for wireless communication are provided. A method includes: receiving, by an access and mobility management node from a radio access node, a first request message with relay information; and transmitting, by the access and mobility management node to a session management node, a second request message with the relay information to allow the session management node to activate one or more Protocol Data Unit, PDU, sessions over a relay path.

Abstract: A wireless communication method including: transmitting, by a relay wireless communication terminal to a network, an initial emergency request to establish a Protocol Data Unit, PDU, session providing an emergency service for a remote wireless communication terminal according to a request for emergency services from the remote wireless communication terminal.

Abstract: An acoustic resonator includes a piezoelectric layer on a substrate and an interdigital electrode structure on the piezoelectric layer. The interdigital electrode structure includes a first bus bar, a second bus bar, a first set of electrode fingers, and a second set of electrode fingers. The first bus bar and the second bus bar extend parallel to one another along a length of the interdigital electrode structure. The first set of electrode fingers are coupled to the first bus bar and extend to a first apodization edge. The second set of electrode fingers are coupled to the second bus bar and extend to a second apodization edge. The first set of electrode fingers and the second set of electrode fingers are interleaved. At least one of the first apodization edge and the second apodization edge provides a wave pattern along the length of the interdigital electrode structure.

Abstract: An acoustic resonator includes a piezoelectric layer on a substrate and an interdigital electrode structure on the piezoelectric layer. The interdigital electrode structure includes a first bus bar, a second bus bar, a first set of electrode fingers, and a second set of electrode fingers. The first bus bar and the second bus bar extend parallel to one another along a length of the interdigital electrode structure. The first set of electrode fingers are coupled to the first bus bar and extend to a first apodization edge. The second set of electrode fingers are coupled to the second bus bar and extend to a second apodization edge. The first set of electrode fingers and the second set of electrode fingers are interleaved. At least one of the first apodization edge and the second apodization edge provides a wave pattern along the length of the interdigital electrode structure.

Abstract: This application relates to an information processing method and device. A first device determines a first source coding rate. The first device determines a source coding matrix based on the first source coding rate and a channel coding basis matrix. The first device inputs a source sequence into the source coding matrix, to perform source coding on the source sequence. In embodiments of this application, the source coding matrix may be determined based on the channel coding basis matrix, which is equivalent to determining source coding information based on channel coding information, to implement joint source and channel coding. Through the joint source and channel coding, a quantity of output bits of source coding can match a quantity of input bits of channel coding, so that technical solutions in embodiments of this application can be adapted to a 5G NR system.

Abstract: An electronic device may have pixels that form an active area for a flexible display layer. An inactive area that is free of pixels may surround the active area. One or more edges of the flexible display layer may be bent around respective bend axes. The display layer may also have one or more unbent edges in which the inactive area and active area of the display have a planar shape. An image transport layer may have an input surface that receives the image and an output surface to which the image is transported. The image transport layer may be formed from a coherent fiber bundle or a layer of Anderson localization material. The coherent fiber bundle may have straight fibers that run parallel to each other in a vertical direction that is parallel to a surface normal of a central portion of the display layer.

Abstract: Method, device and computer program product for wireless communication are provided. A method includes: determining, by a relay wireless communication terminal, whether to change a communication mode with remote wireless communication terminals in response to that a number of the remote wireless communication terminals receiving a same broadcast or multicast traffic from a network is increased; and transmitting, by the relay wireless communication terminal to the remote wireless communication terminals, an indication that communications between the relay wireless communication terminal and the remote wireless communication terminals for transferring the broadcast or multicast traffic to the remote wireless communication terminals is changed from unicast communications to a broadcast or multicast communication in response to the relay wireless communication terminal determining to change the communication mode.