Abstract: A method and a system for rendering video images in virtual reality (VR) scenes are provided.

Abstract: The present invention discloses a Fe—Al intermetallic compound filter element and a preparation method thereof, which relates to the field of powder metallurgy and filtration technology. In view of the drawback in the prior art that using a fiber felt as a filtration layer reduces stability and reliability of a filter, the present invention provides an Fe—Al intermetallic compound filter element, which comprises: at least two filter-element parts, and a rebar connecting the at least two filter-element parts transversely by means of welding, wherein, the filter-element parts each comprises at least two segments of Fe—Al intermetallic compound filter-element powder tube and a connector connecting the at least two segments of Fe—Al intermetallic compound filter-element powder tube end-to-end by means of welding; and wherein, the at least two segments of Fe—Al intermetallic compound filter-element powder tube each comprises a substrate framework and a surface filtration membrane.

Abstract: The disclosure provides a data transmission method and a data transmission device. The data transmission method includes allocating corresponding Orthogonal Frequency Division Multiple Access (OFDMA) sub-channels to respective target neighbor devices in a wireless personal area network (WPAN) based on a determination that a current data transmission scenario of the WPAN is a specific data transmission scenario and transmitting data in the preset data transmission scenario to the respective target neighbor devices through the OFDMA sub-channels. Moreover, according to the data transmission method, an OFDMA transmission mechanism is supported in a SoC system under a wireless local area network and the wireless personal area network, and the OFDMA transmission mechanism is provided in data transmission scenarios with a large amount of data, thereby improving the data transmission rate and saving the data transmission time.

Abstract: A carrying structure is defined with a main area and a peripheral area adjacent to the main area, where a plurality of packaging substrates are disposed in the main area in an array manner, a plurality of positioning holes are disposed in the peripheral area, and a plurality of positioning traces are formed along a part of the edges of the plurality of positioning holes, such that the plurality of positioning traces are formed with notches.

Abstract: A method for controlling a set of wireless earphones, including: establishing a first Bluetooth (BT) connection between a first earphone of the set of wireless earphones and a source apparatus; based on the source apparatus supporting Ultra Wide Band (UWB) connections: establishing a first UWB connection between the first earphone and the source apparatus, and a second UWB connection between a second earphone of the set of wireless earphones and the source apparatus; and receiving, by the first earphone, audio data from the source apparatus using the first UWB connection, wherein the audio data is received from the source apparatus by the second earphone using the second UWB connection

Abstract: A surface flatness detecting device for single crystal square is provide. The device includes a clamping assembly and a detecting assembly. The clamping assembly has a first clamper and a second clamper, the first clamper and the second clamper are configured to clamp a first end and a second end of the single crystal square rod, respectively. The detecting assembly has a first detector and a second detector, the first detector and the second detector are configured to detect a first side and a second side of the single crystal square rod, respectively. After the first side and the second side are detected by the first detector and the second detector, respectively, the first clamper and the second clamper rotate the single crystal square rod by 90 degrees to detect a third side and a fourth side of the single crystal square rod.

Abstract: Methods and apparatuses for control of virtual local area network (VLAN) are disclosed. According to an embodiment, a service consumer sends, to a service provider of a Fifth Generation System (5GS) that provides Ethernet bridging operations for User Equipments (UEs) acting as Ethernet access ports or Ethernet trunk ports, a request for providing configuration information related to a VLAN. The configuration information indicates a port type of at least one port related to the VLAN.

Abstract: Disclosed is an automatic crystal collection process, including: placing a crystal collection cylinder on a movable platform, detecting a length of a single crystal bar, and selecting a descending distance of the movable platform according to the length of the single crystal bar; raising a furnace sub-chamber to an upper limit, rotating the sub-chamber to a position above the crystal collection cylinder, and lowering the single crystal bar into the crystal collection cylinder; cutting off a seed crystal when the single crystal bar is lowered to a distance, and moving the single crystal bar with the descending of the movable platform until the single crystal bar is collected completely; raising the crystal collection cylinder along with the single crystal bar therein to a target position by the movable platform after the single crystal bar is collected completely, and finishing the crystal collection process.

Abstract: A self-adaptive air bag blocking device is disclosed. The device includes an air bag, a first gas conveying pipe and a second gas conveying pipe, wherein an air chamber is formed in the air bag, a ring-shaped abutting surface is formed on the peripheral side of the air bag, so that the abutting surface abuts against a mouth of a container. The first gas conveying pipe is communicated with the air chamber and the outer part of the air bag, so that air enters the air chamber to enable the air bag to expand. The abutting surface is elastically deformed and tightly abuts against the inner wall of the container to form air-tight abutment, and the second gas conveying pipe is arranged on the air bag, so that air enters the container through the second gas conveying pipe, and thus the working liquid is discharged.

Abstract: Embodiments of the present disclosure relate to the field of communication transmission, and in particular, to a network anti-replay method and apparatus, an electronic device, and a storage medium.

Abstract: A compressor and a refrigeration device are provided. The compressor includes a cylinder body and a piston assembly. The cylinder body has a first air suction hole at a cylinder cover of the cylinder body. The piston has a top dead center located close to the cylinder cover of the cylinder body and a bottom dead center located away from the cylinder cover of the cylinder body in a movement stroke. A distance between the top dead center and the bottom dead center is S. The cylinder body or the piston has a second air suction hole. The second air suction hole is configured to connect to the operating cavity when the piston moves to a predetermined position. The distance between the piston at the predetermined position and the top dead center is L1, where L1>0.5 S.

Abstract: Disclosed are an intelligent simulation device for bottom sediment pollution process and control as well as an experimental method. The device includes an experimental flume to which a water inlet tank and a water return tank are connected; a wave-making system, an illumination system, a dosing system and an aeration system; an environmental condition parameter online monitor capable of determining water environmental parameters online; an online water quality index analyzer for monitoring water quality indexes in real time; a water automatic sampling device for automatically collecting water samples in a single or cycle mode; an offline analyzer capable of determining water quality indexes of the collected water samples or physical-chemical indexes of sediments; and an automatic control module for automatically controlling various devices. Further disclosed is an experimental method based on the intelligent simulation device for bottom sediment pollution process and control.

Abstract: Methods and apparatuses for logical time sensitive network (TSN) bridge are disclosed. According to an embodiment, a session management node receives, from a mobility management node in a mobile network, a first request for establishing a protocol data unit (PDU) session for a terminal device which is associated with a port of a logical TSN bridge. The session management node obtains a first port number of the logical TSN bridge at the side of the terminal device. The session management node obtains configuration information of the logical TSN bridge at a side of a user plane node corresponding to the PDU session.

Abstract: This application provides a spread spectrum clock negotiation method, and a peripheral component interconnect express device and system, to implement dynamic negotiation between a transmit end and a receive end on an SSC capability in the peripheral component interconnect express system. The method includes: A second PCIe device generates first indication information, where the first indication information is used to indicate whether the second PCIe device has a spread spectrum clock capability. The second PCIe device sends the first indication information to a first PCIe device. The first PCIe device determines, based on the first indication information, whether to perform spread spectrum clock on a reference clock of the first PCIe device.

Abstract: A diffusive gradients in thin films (DGT) test device for lake water, including: a floating ball and a plurality of water sampling units. A DGT detection device, a water quality detection device with a multi-parameter probe, and a water sampling device are disposed in each of the water sampling units. The water sampling device includes: a plurality of sampling bottles, each of the sampling bottles is provided with an inlet pipe and an exhaust pipe, each of the inlet pipes and exhaust pipes is provided with a one-way solenoid valve; a peristaltic pump, a water sample outlet of the peristaltic pump communicates with the inlet pipes of the plurality of sampling bottles via a multi-way connector; the exhaust pipes of the plurality of sampling bottles are connected to an exhaust manifold via a multi-way connector; a control device connected with the peristaltic pump and each of the one-way solenoid valves.

Abstract: The present invention discloses a novel high-temperature visual acid etching test device and method; the test device includes a visual rock slab holder, an acid solution storage tank I, an acid solution storage tank II, a heating apparatus, a high-pressure water pump, a low-pressure acid pump, a back-pressure valve, an acid valve A, an acid valve B, an acid valve C, an acid valve D, an acid valve E, an acid valve F, a water valve G, a water valve H, a water valve I, a water valve J, and a water valve K; both the acid solution storage tank I and the acid solution storage tank II are provided with a piston therein, where the acid solution storage tank is divided into upper and lower independent parts by the piston. According to the present invention, the flowing process of an acid solution in a fracture can be directly observed to accurately characterize the distribution of the acid solution in the fracture, which facilitates a study on an acid etching mechanism.

Abstract: Systems and methods are disclosed herein that relate to Quality of Service (QoS) mapping in a cellular communications system that operates as a Time Sensitive Networking (TSN) bridge. In one embodiment, a method of operation of a Session Management Function (SMF) in a cellular communications system that operates as a bridge for a TSN system comprises obtaining a QoS mapping table that maps TSN traffic classes to QoS flows within the cellular communications system and distributing at least a part of the QoS mapping table to a User Plane Function (UPF) or a TSN Translator (TT) at the UPF side. In this manner, QoS mapping is provided. Corresponding embodiments of an SMF and a network node that implements an SMF are also disclosed. Embodiments of method of operation of an Application Function (AF) and corresponding embodiments of an AF and a network node that implements an AF are also disclosed.

Abstract: Systems and methods are disclosed herein for output pacing in a cellular communications system that serves as a virtual Time-Sensitive Networking (TSN) node in a TSN network. In some embodiments, a method of operation of a boundary node associated with a cellular communications system that operates as a virtual TSN node in a TSN network comprises receiving user plane traffic from a node in the cellular communications system. The user plane traffic is user plane traffic received by the cellular communications system from a previous hop TSN node. The method further comprises performing output pacing for the user plane traffic when outputting the user plane traffic to a next hop TSN node such that the user plane traffic is output to the next hop TSN node at a rate that matches a desired rate at the next hop TSN node. Corresponding embodiments of a boundary node are also disclosed.

Abstract: A refrigeration system and a refrigeration device are provided. The refrigeration system includes a circulation circuit. The circulation circuit includes a main flow path, and a first branch and a second branch that are connected to the main flow path and are connected in parallel. The main flow path is provided with a condenser and a compressor. The condenser has an output end in communication with an end of the first branch and an end of the second branch. The compressor has two suction holes in communication with another end of the first branch and another end of the second branch, respectively. The first branch and the second branch are provided with a first evaporator and a second evaporator, respectively.