Abstract: Disclosed is a synchronization method for an MWD mud pulse telemetry system. The method comprises: determining a synchronous training sequence on the basis of a frame structure of downhole sent data; constructing a correlation between the down-hole sending synchronous training sequence waveform and the uphole synchronous training sequence local waveform by means of the irrelevance of the trigonometric function; and performing correlation calculation on the synchronous training codeword waveform, which is received uphole and is subjected to the first modulation, and the synchronous training sequence local waveform, which is subjected to the second modulation, so as to obtain a correlation curve, and finding a synchronous position by means of the correlation curve.

Abstract: Provided is helicase BCH1X, which comprises an amino acid sequence represented by SEQ ID NO: 1 or 2. Further provided are a complex structure comprising helicase BCH1X and a binding moiety used for binding to a polynucleotide, and a use thereof in the control and characterization of a polynucleotide and in single molecule nanopore sequencing.

Abstract: The present invention provides a helicase BCH2X, comprising an amino acid sequence represented by any one of SEQ ID NOs: 1-3. The present invention also provides a complex structure comprising the helicase BCH2X and a binding moiety for binding polynucleotides. The present invention also provides a use of the helicase BCH2X or the complex structure comprising same in the control and characterization of polynucleotides and single-molecule nanopore sequencing.

Abstract: An enzyme-linked immunosorbent assay (ELISA) method and a monoclonal antibody for giant panda relaxin-3 (RLN3) are provided. The method includes: conducting ELISA with an anti-giant panda RLN3 monoclonal antibody as a coating antibody and an anti-RLN3 polyclonal antibody as a labeling antibody, where the anti-giant panda RLN3 monoclonal antibody is secreted by a hybridoma cell line RLN-3; and the hybridoma cell line RLN-3 was deposited in the China Center for Type Culture Collection (CCTCC) of Wuhan University, Wuhan, China on Jan. 7, 2021, with an accession number of CCTCC NO: C202129. In addition, an ELISA method for detecting RLN3 in giant panda urine is developed, in which a prepared anti-giant panda RLN3 monoclonal antibody is used as a coating antibody and an anti-giant panda RLN3 polyclonal antibody is used as a labeling antibody. The method can monitor a change in giant panda RLN3 timely by determining giant panda RLN3.

Abstract: Disclosed is a use of trimanganese tetraoxide particles in preparation of a vaccine adjuvant. The adjuvant is a particle adjuvant, the particle adjuvant is trimanganese tetraoxide particles externally wrapped with or without an excipient, and the particle size of the particle adjuvant is 5 nm to 3000 nm. The trimanganese tetraoxide particle adjuvant provided in the present invention can be effectively combined with a single-stranded nucleotide adjuvant and can effectively carry an immune antigen, and a more excellent immunotherapy effects can be achieved when a fewer antigen dose and a relatively low injection amount are used; immune cells are efficiently activated, and body fluid balance and cellular immunity are achieved.

Abstract: Disclosed is a flashlight. The flashlight includes a rotating shaft assembly, a lamp head assembly, a control assembly and a damping member. The lamp head assembly is rotatably installed on the rotating shaft assembly; the control assembly is connected to the rotating shaft assembly; and the damping member is provided between the lamp head assembly and the rotating shaft assembly. The damping member is configured to increase a resistance to a rotation of the lamp head assembly relative to the rotating shaft assembly.

Abstract: The last sentence of the abstract has been deleted because it refers to purported merits of the invention. The abstract should not refer to purported merits or speculative applications of the invention and should not compare the invention with the prior art, therefore the abstract has been amended to delete the last sentence by Examiner's amendment.

Abstract: The present application provides a detection chip assembly tool, a liquid injection apparatus and method, an electronic device, and a medium. The tool is mounted on a vacuumizing assembly, and comprises: a base mounted on a detection chip. The base is provided with a reaction cavity covering the detection chip and a fluid channel communicated with the reaction cavity, and is further provided with a liquid inlet groove structure communicated with the fluid channel and having a buffer solution injected. When the detection chip is filled with the buffer solution, the vacuumizing assembly is started to discharge air in the detection chip assembly tool, in response to the vacuumizing assembly vacuumizing, pressure relief is performed, and the buffer solution in the liquid inlet groove structure flows into the reaction cavity along the fluid channel under the action of negative pressure so as to fill the detection chip.

Abstract: A ground receiving front-end compensation system for intelligent guide drilling borehole-ground electromagnetic transmission is provided, and includes a ground sensing module located below the underground wellhead, a ground system located between the underground wellhead and the measuring electrode, a measuring electrode and a compensation electrode; the ground system, the measuring electrode and the compensation electrode are located at the same side of the underground wellhead, a measuring electrode spacing (a first preset distance) is a distance from the underground wellhead to the measuring electrode; a compensation electrode spacing (a second preset distance) is a distance from the underground wellhead to the compensation electrode, the second preset distance is greater than the first preset distance; an induction signal of the ground sensing module enters the ground system, and the ground system outputs compensation current based on the induction signal, and compensates the measuring signal based on the

Abstract: A ground receiving front-end compensation system for intelligent guide drilling borehole-ground electromagnetic transmission is provided, and includes a ground sensing module located below the underground wellhead, a ground system located between the underground wellhead and the measuring electrode, a measuring electrode and a compensation electrode; the ground system, the measuring electrode and the compensation electrode are located at the same side of the underground wellhead, a measuring electrode spacing (a first preset distance) is a distance from the underground wellhead to the measuring electrode; a compensation electrode spacing (a second preset distance) is a distance from the underground wellhead to the compensation electrode, the second preset distance is greater than the first preset distance; an induction signal of the ground sensing module enters the ground system, and the ground system outputs compensation current based on the induction signal, and compensates the measuring signal based on the

Abstract: The present application discloses a carrier wave distortion compensation method for an MWD mud continuous wave system, comprising: in the downhole, modulating the carrier wave according to the transmission data to obtain a mud continuous wave signal to be transmitted; transmitting the mud continuous wave signal to the ground via a mud channel; denoising the received pressure signal on the ground to obtain a denoised mud continuous wave signal; performing subsequent processing on the denoised mud continuous wave signal to obtain the final transmission data; and performing downhole distortion compensation before modulating the carrier wave or performing ground distortion compensation on the denoised mud continuous wave signal before performing subsequent processing. The present application reduces the bit error rate of the MWD mud continuous wave system by performing waveform distortion compensation prior to downhole modulation or during performing signal processing on the ground.

Abstract: An electronic device includes a communication device and a user interface. The communication device detects establishment of an electrical communication channel to a content presentation companion device. One or more processors operable with the communication device and the user interface cause the communication device to query the content presentation companion device for a content presentation companion device port facilitating the electrical communication channel and, in response, cause the user interface to identify the content presentation companion device port.

Abstract: An electronic device includes a communication device and one or more processors operable with the communication device. The one or more processors, in response to the communication device identifying a port establishing a display data channel, causing the communication device to transmit an extended display identification (EDID) extension or second-generation EDID file structure comprising an identity of the port using the display data channel.

Abstract: An electronic device includes a communication device and a user interface. The communication device detects establishment of an electrical communication channel to a content presentation companion device. One or more processors operable with the communication device and the user interface cause the communication device to query the content presentation companion device for a content presentation companion device port facilitating the electrical communication channel and, in response, cause the user interface to identify the content presentation companion device port.

Abstract: A ground transmitting system and method for electromagnetic transmission between a well and a ground for intelligent drill guiding includes a well site power generation device, a ground transmitting device and current transmission ground electrodes. The well site power generation device, the ground transmitting device and the current transmission ground electrodes are connected in sequence. The well site power generation device is used for supplying power to the ground transmitting device. The ground transmitting device is used for sending generated current waveform to the current transmission ground electrodes through a transformer. The current transmission ground electrodes are used for sending the current waveform to an underground receiver through a drill pipe and strata to complete a ground transmitting for the electromagnetic transmission between the well and the ground for the drill guiding.

Abstract: An information processing method includes receiving a user input, the user input representing a trajectory, performing recognition on the trajectory to obtain a matching result based on matching in a database, recording the trajectory to generate an image including the trajectory, and outputting a candidate option. The candidate option includes the matching result and an identifier of an image.

Abstract: The present disclosure provides an inductive magnetic sensor, which includes a signal pre-amplifying measurement circuit, a feedback loop, a magnetic core and coil group, a low-noise autozero processing circuit, and an output protection module. The magnetic core and coil group is electrically connected between the signal pre-amplifying measurement circuit and the feedback loop, the signal pre-amplifying measurement circuit comprises the low-noise autozero processing circuit, and the feedback loop and the low-noise autozero processing circuit are electrically connected to the output protection module respectively. By introducing the resonant notch filter, it may extend the passband to the low frequency, and extend the low-frequency characteristic of the magnetic sensor, to obtain a better low-frequency magnetic sensor. The present disclosure further provides an electromagnetic prospecting equipment.

Abstract: Disclosed is a synchronization method for an MWD mud pulse telemetry system. The method comprises: determining a synchronous training sequence on the basis of a frame structure of downhole sent data; constructing a correlation between the down-hole sending synchronous training sequence waveform and the uphole synchronous training sequence local waveform by means of the irrelevance of the trigonometric function; and performing correlation calculation on the synchronous training codeword waveform, which is received uphole and is subjected to the first modulation, and the synchronous training sequence local waveform, which is subjected to the second modulation, so as to obtain a correlation curve, and finding a synchronous position by means of the correlation curve.

Abstract: A reinforcement and bearing capacity calculation method for a self-stressed bridge deck link slab includes: calculating a cross-section moment of inertia of the link slab and a negative moment borne by the link slab; introducing a design self-stress according to stress distribution of the self-stressed bridge deck link slab, whether reinforced or un-reinforced; calculating a cracking moment of the plain self-stressed bridge deck link slab, comparing the cracking moment and the negative moment, proceeding to the next step, or configuring a structural reinforcement as needed; determining a design strength of reinforcement, selecting a reinforcement ratio, and calculating a resisting moment of the link slab; comparing the resisting moment and the negative moment of the link slab, design conditions are satisfied, or configuring the reinforcement ratio and carrying out iterative calculation to obtain a resisting moment; and analyzing stress on the reinforcement and concrete.

Abstract: An information processing method includes receiving a user input, the user input representing a trajectory, performing recognition on the trajectory to obtain a matching result based on matching in a database, recording the trajectory to generate an image including the trajectory, and outputting a candidate option. The candidate option includes the matching result and an identifier of an image.