Abstract: A communication method and apparatus are provided, so that an access network device can configure an initial hyper frame number (HFN) and a reference sequence number (SN) for a terminal device in time when no data packet is received from a core network device. The method includes: A first core network device obtains an initial multicast/broadcast service (MBS) quality of service flow identifier (QFI) SN corresponding to a first MBS session, and sends the initial MBS QFI SN in a first procedure. The first procedure is a procedure before a the 1st data packet of the first MBS session is sent to an access network device. After receiving the initial MBS QFI SN in the first procedure, the access network device may determine an initial HFN and a reference SN based on the initial MBS QFI SN, and send the initial HFN and the reference SN to a terminal device.

Abstract: A communication method and apparatus are provided, relate to the field of communication technologies, and are used to alleviate a problem of how to set a PDCP window variable when a terminal device performs packet data convergence protocol PDCP entity suspending or PDCP entity re-establishment. The method may include: The terminal device receives, from a network device, first information indicating packet data convergence protocol PDCP suspending, and sets, to an initial value, a PDCP window variable associated with a radio bearer RB other than a first RB. The first RB may include a multicast and broadcast service radio bearer MRB.

Abstract: The present invention provides a method and a system for preparing fuel using high-acid-value biological grease, which can be processed through triple deoxidization steps, i.e., thermal cracking deoxygenation-catalytic cracking deoxygenation-catalytic hydrodeoxygenation. By use of the method and system of the invention, the raw material of the high-acid-value biological grease can be gradually deoxidized to reduce the acid value and thereby prepare a clean fuel with equivalent fuel components as those obtained from crude oil refining or direct hydrodeoxygenation for biological grease.

Abstract: A ball bearing sensor shift arrangement for a camera may include one or more voice coil motor (VCM) actuators that include the fixed magnets, optical image stabilization (OIS) coils, and/or one or more autofocus (AF) coils. The ball bearing sensor shift arrangement may be coupled with an image sensor of the camera, and may include carrier frames configured to move on ball bearings so as to enable motion of the image sensor in multiple degrees-of-freedom (DOF). An OIS carrier frame(s) may be coupled with the OIS coils, which may be positioned proximate the fixed magnets and used for moving the image sensor in directions orthogonal to an optical axis of the camera. An AF carrier frame may be coupled with the AF coil(s), which may be positioned proximate the fixed magnets and used for moving the image sensor in at least one direction parallel to the optical axis.

Abstract: The disclosure provides communication methods and apparatuses. One example method includes that at least one data packet of a first service is received, where the at least one data packet includes a first data packet, and the first data packet is located at a first location in the at least one data packet. Then, the at least one data packet and first indication information are sent to a first network device, where the first indication information indicates the first location.

Abstract: Embodiments of this application provide example communication methods and apparatuses. One example method includes receiving, by a terminal device, N pieces of first information in N separate transmissions, where N is an integer greater than 1. The terminal device can then determine second information or transmission information of the second information based on at least a part of the N pieces of first information, where each of the N pieces of first information includes M bits, and M is an integer greater than or equal to 1.

Abstract: Various embodiments disclosed herein include mechanical iris assemblies, as well as camera modules and devices that incorporate these mechanical iris assemblies. The mechanical iris assemblies described herein include a stator piece, a rotor piece, a set of blade elements, and an actuator arrangement. The actuator arrangement may include a voice coil actuator having at least one magnet carried by the stator piece and at least one coil carried by the rotor piece. The mechanical iris assembly includes a set of springs configured to carry current between the stator piece and the rotor piece to power the coil or coils carried by the rotor piece.

Abstract: The embodiments of the present disclosure provide a visual positioning method, the method may include obtaining a positioning image collected by an imaging device; obtaining a three-dimensional (3D) point cloud map associated with an area where the imaging device is located; determining a target area associated with the positioning image from the 3D point cloud map based on the positioning image; and determining positioning information of the imaging device based on the positioning image and the target area.

Abstract: Provided is a subcellular self-tracer ion imaging and localization method of metal elements. Wherein, the above method includes: using the SEM-FIB-TOF-SIMS system to perform subcellular structure imaging and metal ion imaging on the sample slice, wherein in the SEM-FIB-TOF-SIMS system, the scanning electron microscope (SEM) is used to perform subcellular structure imaging on the sample slice; and the focused ion beam (FIB) is used to perform surface bombardment on the subcellular structures, and the secondary ions excited are detected by the time-of-flight secondary ion mass spectrometry (TOF-SIMS) to obtain the ion information in the analysis area and imaged.

Abstract: A master-slave switching technique is described. The master-slave switching method comprises: broadcasting a master-slave switching message and waiting for a master-slave switching moment by a first device used as a master device in a broadcast isochronous group after determining that a master-slave switching with a target slave device in the broadcast isochronous group is required; switching an operating mode to a slave mode by the first device so that the first device becomes one slave device in the broadcast isochronous group when the master-slave switching moment arrives; and communicating with the master device in the broadcast isochronous group, by the first device switched to the slave device, based on a communication rule of the broadcast isochronous group before the master-slave switching. In this way, the master-slave switching between the master device and the target slave device can be achieved without changing the communication rule, i.e., seamless master-slave switching in the BIG is achieved.

Abstract: An optical connector includes a fiber positioning assembly and a frame having two walls for supporting the fiber positioning assembly in a controlled vertical alignment relative to the frame. The fiber positioning assembly includes an optical fiber array disposed at a top surface of a support block for positioning between the walls, and a cap covering top portions of the optical fibers projecting from the block. The cap has a flat alignment surface resting upon the fiber top portions and extending laterally beyond the support block such that when the block is disposed between the walls, free portions of the alignment surface rest upon the walls to control the vertical alignment of the array. A single rail affixed to a bottom shelf of the frame, and a correspondingly dimensioned rectangular notch at the bottom of the support block, control the horizontal alignment of the array.

Abstract: A random access method and apparatus are provided. The method includes: a terminal device obtains a position of the terminal device and a position of a network device, the terminal device determines a time adjustment value based on the position of the terminal device and the position of the network device, and the terminal device sends a random access preamble based on the time adjustment value and a random access channel (RACH) resource configured by the network device. Based on this solution, the terminal device may determine the time adjustment value based on the position of the terminal device and the position of the network device, and adjust a time for sending the random access preamble on the RACH resource. This helps avoid a problem that random access preamble receiving time windows overlap, thereby increasing a success rate of accessing the network device by the terminal device.

Abstract: Embodiments of the disclosure disclose a method, an apparatus, an electronic device, a storage medium and a product for analyzing cloud game experience quality. The method includes: obtaining predetermined feature data associated with a cloud game experience quality during historical cloud game sessions; grouping the predetermined feature data corresponding to each of the historical cloud game sessions according to a predetermined segment duration, and determining a plurality of cloud game clip experience quality analysis results corresponding to each of the historical cloud game sessions based on each group of the feature data; and determining a corresponding target cloud game experience quality analysis result of each of the historical cloud game sessions respectively, based on the cloud game clip experience quality analysis results.

Abstract: The present disclosure provides a perspective switching method and apparatus, an electronic device, a storage medium, and a program product. The method includes: during a process of playing a current first video stream, in response to a first trigger operation, displaying a perspective navigation window and playing a second video stream in the perspective navigation window, in which navigation video frames in the second video stream are obtained by extracting video frames from different first video streams, and corresponding playback progress of different navigation video frames in respective first video streams is different; and in response to a second trigger operation, taking a target first video stream as a current first video stream and playing the current first video stream, in which the target first video stream is a first video stream having a same perspective as a current navigation video frame displayed in the perspective navigation window.

Abstract: A terminal device determines whether an available first resource is present, where the available first resource is associated with a hybrid automatic repeat request (HARQ) process configured with a HARQ mode A, and the HARQ mode A supports retransmission. When the available first resource is present, the terminal device sends a timing advance report to a network device by using the available first resource.

Abstract: For data transmission when a communication manner between the network device and a plurality of terminal devices is switched from a unicast manner to a multicast manner, a data transmission method includes: A network device sends first indication information to a first terminal device, where the first indication information includes a first sequence number (SN), and the first indication information is used to indicate the first terminal device to receive a data packet in a multicast manner. The network device sends the data packet to the first terminal device and a second terminal device in the multicast manner based on the first SN.

Abstract: A device for fatigue test includes a sample-laying part, a sample support, and a force-applying part. The sample-laying part is disposed on the sample support; and the force-applying part is disposed on the sample-laying part; the sample-laying part includes a substrate plate and at least two arms disposed on the substrate plate; the sample support includes a bed plate and at least four roller assemblies disposed on the bed plate; each roller assembly includes a roller, a roller support, and an adjusting bolt; the roller support is disposed on the bed plate; the roller is disposed on the roller support; the adjusting bolt is disposed between the roller and the roller support; and the sample support further includes at least one barrier, and both ends of the barrier are connected to two adjacent roller supports, respectively.

Abstract: Various embodiments disclosed herein include mechanical iris assemblies, as well as camera modules and devices that incorporate these mechanical iris assemblies. The mechanical iris assemblies described herein include a housing, a rotor plate, a set of blade elements, and an actuator arrangement. The actuator assembly may include a voice coil actuator. In some variations, a voice coil actuator includes a magnet, a first coil, and a second coil, and a controller is configured to concurrently drive current through the first coil and the second coil in opposite directions. In other variations, a voice coil actuator includes at least one magnet and a set of arcuate-shaped coils. In still other variations, a voice coil actuator includes at least one magnet and a printed circuit that defines a coil that includes an inner trace, an outer trace, and a set of connecting traces that connect the inner trace to the outer trace.

Abstract: A method of interfacing a discrete digital workshop information system is provided, where the information system includes mutual integration among product lifecycle management (PLM), enterprise resource planning (ERP), a manufacturing execution system (MES), an energy management system (EMS), and a warehouse management system (WMS) of a finished product. A method of interfacing based on a data dictionary fusing different function datasets is proposed to solve the problems of a current discrete industry information system, such as single in function, a small amount of integrated information, a large number of “information islands” existing, incapable of achieving full-process informatization management and control, difficulty in product quality tracing and the like. By the method, it is possible to realize flexible production in a discrete manufacturing industry, precise management and control of a production process, significant improvement in product quality and significant reduction in operating costs.