Abstract: A safety pin locking device for workpiece turnover includes a safety pin, a triangular lock plate, an elastic positioning pin, and a lockset. The safety pin is configured to be inserted into a base and an overturnable workpiece to lock an angle of the overturnable workpiece relative to the base. A first corner end of the triangular lock plate is connected to an axial surface of the safety pin by a fastener, and the triangular lock plate can rotate around the fastener. The elastic positioning pin is mounted at a second corner end of the triangular lock plate and is configured to be inserted into positioning counterbores at two different positions on the axial surface of the safety pin to limit a position of the triangular lock plate. The lockset is mounted at a third corner end of the triangular lock plate.

Abstract: A safety pin locking device for workpiece turnover includes a safety pin, a triangular lock plate, an elastic positioning pin, and a lockset. The safety pin is configured to be inserted into a base and an overturnable workpiece to lock an angle of the overturnable workpiece relative to the base. A first corner end of the triangular lock plate is connected to an axial surface of the safety pin by a fastener, and the triangular lock plate can rotate around the fastener. The elastic positioning pin is mounted at a second corner end of the triangular lock plate and is configured to be inserted into positioning counterbores at two different positions on the axial surface of the safety pin to limit a position of the triangular lock plate. The lockset is mounted at a third corner end of the triangular lock plate.

Abstract: A random access method includes determining, by a user equipment (UE), a preamble sequence. The method also includes generating, by the UE, a scrambling code. The scrambling code is based on the preamble sequence. The method further includes scrambling, by the UE, data based on the scrambling code to obtain scrambled data. The method additionally includes determining, by the UE based on a predetermined resource mapping relationship, time-frequency resources for sending the scrambled data. The method also includes sending, by the UE on the determined time-frequency resources, the scrambled data to a base station.

Abstract: A random access method includes determining, by a user equipment (UE), a preamble sequence. The method also includes generating, by the UE, a scrambling code. The scrambling code is based on the preamble sequence. The method further includes scrambling, by the UE, data based on the scrambling code to obtain scrambled data. The method additionally includes determining, by the UE based on a predetermined resource mapping relationship, time-frequency resources for sending the scrambled data. The method also includes sending, by the UE on the determined time-frequency resources, the scrambled data to a base station.

Abstract: The present invention discloses a nitrogen-containing heterocyclic substituted benzoxazine oxazolidinone compound, a preparation method and use thereof in the manufacture of a medicament for treating and/or preventing infectious diseases caused by Mycobacterium tuberculosis. Specifically, the present invention relates to a compound represented by formula (I) and stereoisomer thereof, pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the compounds of the present invention, use thereof, a method for preparing the compound, in which X1, X2, R1 and R2 are described in the specification.

Abstract: A random access method, user equipment (UE), a base station, and a random access system, are provided to address relatively long service delay. In various embodiments, after downlink synchronization with a cell is obtained, UE can determine a preamble sequence of the UE in the cell, where the UE has not obtained uplink synchronization with the cell. The UE can then obtain service data and generate a scrambling code, and scramble the service data based on the scrambling code to obtain scrambled service data. The UE can then configure, based on a predetermined resource mapping relationship, time-frequency resources respectively occupied by the preamble sequence and the scrambled service data. The UE then sends on the configured time-frequency resources, the preamble sequence and the scrambled service data to a base station the cell belongs to and receives random access response sent by the base station based on the preamble sequence.

Abstract: The present invention discloses a nitrogen-containing heterocyclic substituted benzoxazine oxazolidinone compound, a preparation method and use thereof in the manufacture of a medicament for treating and/or preventing infectious diseases caused by Mycobacterium tuberculosis. Specifically, the present invention relates to a compound represented by formula (I) and stereoisomer thereof, pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the compounds of the present invention, use thereof, a method for preparing the compound, in which X1, X2, R1 and R2 are described in the specification.

Abstract: A random access method, user equipment (UE), a base station, and a random access system, are provided to address relatively long service delay. In various embodiments, after downlink synchronization with a cell is obtained, UE can determine a preamble sequence of the UE in the cell, where the UE has not obtained uplink synchronization with the cell. The UE can then obtain service data and generate a scrambling code, and scramble the service data based on the scrambling code to obtain scrambled service data. The UE can then configure, based on a predetermined resource mapping relationship, time-frequency resources respectively occupied by the preamble sequence and the scrambled service data. The UE then sends on the configured time-frequency resources, the preamble sequence and the scrambled service data to a base station the cell belongs to and receives random access response sent by the base station based on the preamble sequence.