Abstract: A mower is provided and includes: a housing; a movable upper cover, disposed on the housing; and a cutting assembly, disposed on the housing. The cutting assembly includes a blade carrier assembly, and the blade carrier assembly includes a blade carrier and a blade. The blade carrier includes a disc body and a blade receiving groove recessed inwardly from an edge of the disc body along an axial direction of the disc body. The blade is mounted in the blade receiving groove and arranged to be that the blade is not protruded out of the blade receiving groove in the axial direction of the disc body.

Abstract: A mower is provided and includes: a case; a charging circuit provided in the case, and a combination of a wheel assembly and a charging interface assembly arranged on the case. The combination is electrically connected to the charging circuit. The combination includes: a wheel assembly; and a charging interface assembly electrically connected to the charging circuit. The wheel assembly and the charging interface assembly are integrated molding structure.

Abstract: Provided are an anti-CAIX single-domain antibody and a VHH chain thereof, as well as related coding sequence, expression vector and host cell; also provided are a production method for said CAIX single-domain antibody and an application thereof.

Abstract: A device for launching and recovering a box sampler includes a suspension coop, a rail assembly, a moving mechanism, a power unit, and a lifting frame. The rail assembly is fixedly arranged on a deck. The moving mechanism is arranged on the rail assembly and can move along the rail assembly. A fixed end of the power unit is articulated with a top end of the moving mechanism, and an extending end of the power unit is articulated with an open end of an upper frame of the lifting frame. A closed end of the upper frame of the lifting frame is articulated with a front end of the moving mechanism. According to the device for launching and recovering a box sampler, the box sampler can be smoothly launched and recovered. The sampler in the suspension coop can be kept horizontal and is prevented from severely shaking.

Abstract: The disclosure provides a starting circuit of a switching power supply, which includes an input rectifying and filtering circuit, a starting circuit, a transformer, an output rectifying and filtering circuit, a feedback circuit, a first photoelectric coupler and a power management chip. The power management chip is respectively connected with the output end of the first photoelectric coupler, the output end of the feedback circuit and the primary coil of the transformer. After the first photoelectric coupler is powered on, the starting circuit is turned on, and the power management chip and the transformer are started and work. After the first photoelectric coupler is powered off, the power management chip stops working and enters a standby state. And at the moment, the standby power consumption of the power management chip is equal to zero.

Abstract: The present disclosure provides a method and system for stabilizing a Poynting vector of a seismic wavefield. The method includes: adjusting an amplitude of a time derivative of the seismic wavefield, and computing a Poynting vector of the adjusted time derivative of the seismic wavefield to obtain a first Poynting vector, where a difference between the amplitude of the first Poynting vector and the amplitude of a second Poynting vector is within a set range, and the second Poynting vector belongs to the seismic wavefield; and conducting operation on the second Poynting vector and the first Poynting vector to obtain a final Poynting vector of the seismic wavefield. The present disclosure addresses instability of Poynting vectors computation.

Abstract: Provided are a chimeric antigen receptor targeting CD20 antigen and a preparation method thereof. The extracellular antigen binding domain of the chimeric antigen receptor includes an antibody heavy chain variable region shown in SEQ ID NO: 7 or 9 or 33 and an antibody light chain variable region shown in SEQ ID NO: 11 or 13 or 35, and is capable of killing tumor cells.

Abstract: Provided is a nucleic acid encoding a chimeric CD3 fusion protein and an anti-CD3 based bispecific T cell activator (BiTA) element. Also provided are vectors, engineered immune cells comprising the nucleic acid, the usage thereof and methods for preventing tumor. BiTA secreted by CAB-T cells can simultaneously achieve activation of CAB-T cells and endogenous TCR complexes in non-engineered T cells in tumor, and exert an anti-tumor effect.

Abstract: Provided are a chimeric antigen receptor targeting CD20 antigen and a preparation method thereof. The extracellular antigen binding domain of the chimeric antigen receptor includes an antibody heavy chain variable region shown in SEQ ID NO: 7 or 9 or 33 and an antibody light chain variable region shown in SEQ ID NO: 11 or 13 or 35, and is capable of killing tumor cells.

Abstract: Provided are a chimeric antigen receptor targeting CD20 antigen and a preparation method thereof. The extracellular antigen binding domain of the chimeric antigen receptor includes an antibody heavy chain variable region shown in SEQ ID NO: 7 or 9 or 33 and an antibody light chain variable region shown in SEQ ID NO: 11 or 13 or 35, and is capable of killing tumor cells.

Abstract: Provided are a chimeric antigen receptor targeting CD20 antigen and a preparation method thereof. The extracellular antigen binding domain of the chimeric antigen receptor includes an antibody heavy chain variable region shown in SEQ ID NO: 7 or 9 or 33 and an antibody light chain variable region shown in SEQ ID NO: 11 or 13 or 35, and is capable of killing tumor cells.

Abstract: An example operation may include one or more of receiving, via a network, tag data that is read from a tag associated with a physical object and signed with a key assigned to the tag, determining, via a blockchain peer, that the signed tag data is validly signed based on a corresponding key pair of the tag which is accessible to the blockchain peer, determining, via the blockchain peer, whether the tag data satisfies of one or more predefined conditions of the physical object, and storing the determination via a blockchain database.

Abstract: Embodiments of the present disclosure are directed to a radio frequency (RF) parameter processing method, a related device, a mobile terminal and a storage medium. The RF parameter processing method includes obtaining an RF parameter, performing a calibration process on the RF parameter to obtain a target RF parameter, wherein the target RF parameter comprises a target dynamic RF parameter, backing up the target dynamic RF parameter into a predetermined partition, and upon detecting a setting information, injecting the target dynamic RF parameter stored in the predetermined partition into an activated partition.

Abstract: Provided are a chimeric antigen receptor targeting CD20 antigen and a preparation method thereof. The extracellular antigen binding domain of the chimeric antigen receptor includes an antibody heavy chain variable region shown in SEQ ID NO: 7 or 9 or 33 and an antibody light chain variable region shown in SEQ ID NO: 11 or 13 or 35, and is capable of killing tumor cells.

Abstract: An apparatus and method for measuring a structural angular acceleration based on dynamic centrifugal force measurement belong to the technical field of angular acceleration measurement. The apparatus has a solid ball. The solid ball can move freely along the radial direction of the outer wall packaging hood. The elastic block is used as a stress base. A rod for lateral limit and connection is used for connecting the rigid block and a pulley and limiting the displacement of solid ball so that the solid ball can only move longitudinally along the apparatus. The rigid block can move freely due to the pulley. Measurement of a transient angular acceleration is converted into dynamic measurement of the centrifugal force of the solid ball. Through the above design, the dynamic angular acceleration of the structure caused by dynamic load can be relatively accurately calculated.

Abstract: The disclosure provides a bus module, a cascade module, and a bus module control method. The bus module includes an input unit, an output unit, a switching unit, and a control unit. The input unit includes at least one input branch which includes an input interface electrically connected to a peripheral power supply to obtain power output by the peripheral power source. The output unit is provided with an output branch, and the output branch is provided with an output interface to output power obtained by the input unit. One end of the switching unit is connected to the input unit, and the other end of the switching unit is connected to the output unit. And the control unit controls the switching unit to work to control the on-off between the input branch and the output branch.

Abstract: A functionalised nanoparticle that is at least in part coated by a polymer, wherein the polymer comprises charged and uncharged groups at a ratio ranging from 4:1 to 1:4 and the functionalised nanoparticle is conjugatable or can be functionalised to conjugate with a biomolecule.

Abstract: The disclosure provides a starting circuit of a switching power supply, which includes an input rectifying and filtering circuit, a starting circuit, a transformer, an output rectifying and filtering circuit, a feedback circuit, a first photoelectric coupler and a power management chip. The power management chip is respectively connected with the output end of the first photoelectric coupler, the output end of the feedback circuit and the primary coil of the transformer. After the first photoelectric coupler is powered on, the starting circuit is turned on, and the power management chip and the transformer are started and work. After the first photoelectric coupler is powered off, the power management chip stops working and enters a standby state. And at the moment, the standby power consumption of the power management chip is equal to zero.

Abstract: Provided are a chimeric antigen receptor targeting CD20 antigen and a preparation method thereof. The extracellular antigen binding domain of the chimeric antigen receptor includes an antibody heavy chain variable region shown in SEQ ID NO: 7 or 9 or 33 and an antibody light chain variable region shown in SEQ ID NO: 11 or 13 or 35, and is capable of killing tumor cells.

Abstract: A mower is provided and includes: a housing; a movable upper cover, disposed on the housing; and a cutting assembly, disposed on the housing. The cutting assembly includes a blade carrier assembly, and the blade carrier assembly includes a blade carrier and a blade. The blade carrier includes a disc body and a blade receiving groove recessed inwardly from an edge of the disc body along an axial direction of the disc body. The blade is mounted in the blade receiving groove and arranged to be that the blade is not protruded out of the blade receiving groove in the axial direction of the disc body.