Abstract: Provided are a random access method, UE and a storage medium. The method includes: performing, by a transmission device, random access on one uplink carrier of L uplink carriers configured in a cell, wherein the L is a positive integer greater than or equal to 1, and the uplink carrier includes at least one of the followings: a Non-Supplement Uplink (SUL) carrier and an SUL carrier.

Abstract: Disclosed are a signal transmission method and a corresponding device. The method includes: acquiring a second-type target station that matches a first-type target station; making a channel reservation with the second-type target station; and after the reservation is completed, transmitting a first signal to the first-type target station.

Abstract: Provided is a wireless charging loop antenna. The wireless charging loop antenna includes an extracorporal planar loop antenna and an intracorporal planar loop antenna. The intracorporal planar loop antenna is disposed inside a body, and the extracorporal planar loop antenna is disposed on a skin outside the body. The extracorporal planar loop antenna includes an extracorporal antenna substrate, an extracorporal loop radiation patch, paired connection radiation patches and a patch capacitor. The extracorporal loop radiation patch is provided with at least one extracorporal radiation patch gap. The patch capacitor is disposed at one of the at least one extracorporal radiation patch gap. The extracorporal loop radiation patch and the paired connection radiation patches form a circuit. The extracorporal loop radiation patch, the paired connection radiation patches and the patch capacitor are all on a same surface of the extracorporal antenna substrate.

Abstract: The present invention discloses an experimental device for cavitation corrosion of liquid metal, comprising a stand, and a vibration device and a lifting and rotating device separately arranged on the stand, wherein a heating device for experimental use is arranged on the vibration device; a furnace lid with a sealing ring is arranged above the heating device; a stirring mechanism is arranged on the furnace lid; the stirring mechanism is connected to a chunk below the furnace lid; a clamp is connected below the chuck, and the clamp is connected to a sample; the furnace lid is connected to the lifting and rotating device; the lifting and rotating device can control the movement of the furnace lid so that the sample is placed in the heating device; the lifting and rotating device, the stirring mechanism, the heating device and the vibration device are connected to a control system.

Abstract: A hydraulic forming machine, including a body provided with a feed inlet penetrating a first mounting surface, a cutting mechanism, a forming die, an ejector arranged on the forming die, and a driving mechanism. The forming die includes a movable die and a fixed die matched with each other. The cutting mechanism and the fixed die are provided on the first mounting surface of the body and respectively at two sides of the discharge end of the feed inlet. The movable die is arranged on the driving mechanism and driven by the driving mechanism to move close to or away from the fixed die in a direction perpendicular to the first mounting surface. The cutting mechanism is configured to cut a blank at an output end of the conveying inlet. The blank cut by the cutting mechanism is extruded between the fixed die and the movable die.

Abstract: The present disclosure provides a fusion method and terminal for touch messages and a computer readable storage medium. The method includes: pushing touch messages of all touch fingers from at least two different touch screens into different buffer queues for buffering; intercepting head data of each buffer queue to generate a reported data array; and acquiring states of the touch fingers according to the reported data array and packaging the states into multi-finger touch protocol data.

Abstract: Disclosed are an uplink control information sending method and apparatus, and a terminal. The method comprises: with respect to a terminal supporting P minimum HARQ timings, determining a downlink subframe set S(n) corresponding to the P minimum HARQ timings, wherein S(n) is a union set of all sets ?(n,Ki); and the terminal sending, on an uplink subframe n, the set S(n) or a HARQ-ACK corresponding to transmission data in the downlink subframe set ?(n,Ki).

Abstract: Provided are a method and apparatus for scrambling a signal, a method and apparatus for descrambling a signal, a device for scrambling or descrambling a signal, and a storage medium. The method for scrambling a signal includes: a first transmission node determining first parameters for scrambling a signal to be transmitted or a signal group to be transmitted; the first transmission node scrambling the signal or the signal group according to the first parameters; and the first transmission node sending the scrambled signal or the scrambled signal group to a second transmission node, and notifying part or all of the first parameters to the second transmission node through first signaling.

Abstract: A powder-enhanced friction stir rivet welding device includes a friction stir rivet welding spindle, a C-shaped frame and a tooling platform. The friction stir rivet welding spindle includes a rotating mechanism, a feed mechanism, a vibration-rotation mixing mechanism and a powder feeding mechanism. The friction stir rivet welding spindle is configured to realize rotation and feed movements of a rivet and feeding and mixing of a powder. The C-shaped frame is configured to fix the friction stir rivet welding spindle and the tooling platform. The tooling platform includes a force sensor, a sensor indenter, a tooling mould and a tooling platen. The tooling platform is configured to clamp a workpiece to be riveted and welded, and measure a rivet welding force of the friction stir rivet welding spindle in real time.

Abstract: Provided are a method and a device for determining and sending a priority of a packet, and a routing system. The method comprises: receiving an ARP packet; determining the white list protection entry of the ARP packet according to the dynamic routing protocol subscription information. By means of the present disclosure, the technical problem in the related art that the ARP packet cannot be interacted normally due to an ARP attack is solved.

Abstract: A mobile terminal and a control method therefor including a primary body having a first display screen and at least one secondary body having a second display screen. An accommodating mechanism and a first connection mechanism are provided on at least one side of the primary body. The first connection mechanism has a retracted state accommodated in the accommodating mechanism and an extended state popped up from the accommodating mechanism. A second connection mechanism is provided on at least one side of the secondary body. The extended first connection mechanism is connected to the connection mechanism so that the primary body and the secondary body are combined into a multi-screen terminal.

Abstract: A variable-size fully-automatic 3D printing system based on a cylindrical coordinate system includes a base provided with a retractable work platform; the base is provided with a vertical support side plate on a side thereof; an upper end of the support side plate is connected to a top plate, and the top plate is located directly above the base; a lower side of the top plate is connected to a sleeve via a column seat; a lower end of the sleeve is provided with a protrusion; a lower end of the protrusion is connected with a cross beam; a lower side of the cross beam is provided with a ball screw a, one end of the ball screw a is connected to a power end of a first servo motor disposed at an outer end of the cross beam.

Abstract: Provided are a method for base station handover, a system, and a computer storage medium, the method comprising a first access and mobility management function (AMF) receives handover request information sent by a first base station, the handover request information serving to request handover of a UE from the first base station to a second base station; when the UE does not need to carry out cross-AMF handover, the first AMF sends a handover preparation request to the second base station requesting target resources for the UE; in a cross-AMF handover process, the AMF of the UE changes from a first AMF to a second AMF; when a UE needs to carry out a cross-AMF handover process, the first AMF sends handover request information to a second AMF, and the second AMF sends a handover preparation request to the second base station requesting target resources for the UE.

Abstract: The present disclosure provides a method of high-resolution amplitude-preserving seismic imaging for a subsurface reflectivity model, including: performing reverse time migration (RTM) to obtain an initial imaging result, performing Born forward modeling on the initial imaging result to obtain seismic simulation data, and performing RTM on the seismic simulation data to obtain a second imaging result; performing curvelet transformation on the two imaging results, performing pointwise estimation in a curvelet domain, and using a Wiener solution that matches two curvelet coefficients as a solution of a matched filter; and applying the estimated matched filter to the initial imaging result to obtain a high-resolution amplitude-preserving seismic imaging result.

Abstract: A full-electric servo vertical three-counter driving power spinning device includes a rack, and the rack includes a baseplate. A workpiece active rotating mechanism and an inner roller feeding mechanism are provided on the baseplate, an outer roller feeding mechanism is provided on the rack; the outer roller feeding mechanism is provided with an outer roller active rotating mechanism; the outer roller active rotating mechanism includes an outer roller active rotating motor and an outer roller, and the inner roller feeding mechanism includes an inner roller. A stress state of a cylinder material by adopting a combined method of an active rotation of a roller and an active rotation of a workpiece turntable is significantly different from that by a passive spinning of a counter-roller, thus improving a thinning rate of a wall thickness of a cylindrical member and a hardening properties of materials.

Abstract: The present discloses a gas-gas high-temperature heat exchanger, including a shell (12), a tube sheet (5), a low-temperature gas inlet pipeline (6) and an outlet pipeline (7), and a high temperature gas outlet (8), the tube is divided into a first heat transfer zone (1) and a second heat transfer zone (2), a low temperature gas (4) flows in the tube, the tube includes a insert component (9) and an outer fin (10); a heat transfer tube in the second heat transfer zone (2) has a sleeve structure, a high-temperature gas (3) flows in the core tube (13), the low temperature gas (4) flows in an annular region between the core tube (13) and an outer tube (14), the high-temperature gas (3) flows out of the core tube (13) and flows into the shell-side area of the second heat transfer zone (2) again.

Abstract: Provided are a key derivation method and device. The method includes: acquiring a slice identifier corresponding to a network slice to which a user equipment is currently attached, where the slice identifier uniquely identifies the network slice; and transmitting the slice identifier to a designated communication device. The slice identifier is configured to instruct the designated communication device to derive, according to the slice identifier, an intermediate key required by the network slice. By means of the technical solution described above, the problem in the related art that a slice function cannot be implemented normally due to the fact that different network slices probably use the same intermediate key may be solved, and different network slices may correspond to different intermediate keys, thereby avoiding a case that the slicing function cannot be implemented normally caused by allocating the same intermediate key to different network slices.

Abstract: A Vehicle-to-Everything (V2X) service configuration method includes: acquiring V2X configuration information sent by a plurality of public land mobile networks (PLMNs), where the V2X configuration information is used for instructing a user equipment (UE) to receive a V2X service; and sending the V2X configuration information to the UE.

Abstract: Disclosed are a method and apparatus for sending information, a method and apparatus for receiving information, a base station and a terminal. The method for sending information includes: configuring semi-persistent scheduling information for indicating N transmission opportunities in a semi-persistent scheduling period, where the N transmission opportunities include M transmission opportunities for transmitting data by a sending end, where N is an integer greater than 1, M is an integer, and 0<M?N; and sending the configured semi-persistent scheduling information to a terminal. Through the present disclosure, the problem, in the related art, that the semi-persistent scheduling cannot meet the requirement of low latency is solved, and scheduling flexibility is improved.

Abstract: A high voltage relay resistant to instantaneous high-current impact is disclosed. The high voltage relay includes an electromagnet system, a control system, a contact system, and a base support. In various embodiments, an electromagnetic force generated by the contact system is used to resolve a problem of contact separation caused by an electric repulsion force generated by an instantaneous high-current.