Abstract: An antigen and kit for the detection of a Helicobacter pylori antibody, and a preparation method thereof are provided. The kit includes an antigen for the detection of the Helicobacter pylori antibody, the antigen is Helicobacter pylori HpC-025 with the deposit registration number of CCTCC No: M20221024, and the detection object of the kit is oral exudate. The antigen is a natural antigen and has a sensitivity superior to the sensitivities of the natural antigen of Hp international standard strain 11637, the natural antigen of Hp-Ag from the Japanese Institute of Immunology and the recombinant antigen of Hp-Ag. The kit has no significant requirements for usage scenarios, can be used in medical institutions at all levels or at home, and can be used for household screening of Helicobacter pylori.

Abstract: A vehicle-road cooperation precise positioning method based on an electrified highway includes measuring position information of its own positioning point by using a roadside positioning module; determining absolute coordinates of all points on a communication line according to the position information; acquiring a contact signal when a vehicle-road connection information system comes into contact with the communication line, and determining position information of a contact point according to the contact signal and the absolute coordinates; and based on a conversion algorithm, determining current vehicle mass center position coordinate information according to the position information of the contact point and parameter information of the vehicle-road connection information system.

Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: A low density parity check (LDPC) channel encoding method is used in a wireless communications system. A communication device encodes an input bit sequence by using an LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The base matrix may be one of eight exemplary designs. The encoding method can be used in various communications systems including fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: A vehicle-road cooperation precise positioning method based on an electrified highway includes measuring position information of its own positioning point by using a roadside positioning module; determining absolute coordinates of all points on a communication line according to the position information; acquiring a contact signal when a vehicle-road connection information system comes into contact with the communication line, and determining position information of a contact point according to the contact signal and the absolute coordinates; and based on a conversion algorithm, determining current vehicle mass center position coordinate information according to the position information of the contact point and parameter information of the vehicle-road connection information system.

Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: A self-calibrating digital-to-analog converter (DAC) is disclosed. The self-calibrating DAC includes a DAC including a least significant bit (LSB) side resistor network and a most significant bit (MSB) side resistor network. At least the MSB side resistor network includes a plurality of trimmable resistors. A resistance to frequency converter coupled with an output of the DAC is included to generate a frequency fL based on a value of the LSB side resistor network or the MSB side resistor network. A monitor is included to generate a counter value by comparing fL with a high frequency clock having a constant frequency fH.

Abstract: The disclosure relates to a self-calibrated buffered-voltage DAC, comprising: a DAC (101) configured to receive an input digital signal (Din) and output a first analog voltage signal (V1); a buffer amplifier (102) configured to receive the first voltage signal (V1) from the DAC (101) and provide a buffered second analog voltage signal (V2); a voltage to frequency converter (201) configured to selectively receive the first and second voltage signals (V1, V2) and provide first and second output signals at respective first and second frequencies (fLx); a counter (202) configured to receive the output signals from the voltage to frequency converter (201) and provide respective first and second digital output signals (D1, D2) corresponding to the respective first and second frequencies (fLx); a comparator (203) configured to receive the first and second digital output signals (D1, D2) and provide a digital calibration offset (?Din); and a DAC error code module (311) configured to receive a digital input code (Din)

Abstract: A low density parity check (LDPC) channel encoding method is used in a wireless communications system. A communication device encodes an input bit sequence by using an LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The base matrix may be one of eight exemplary designs. The encoding method can be used in various communications systems including fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: A digital to analog converter (DAC) includes an amplifier including a buffer of the DAC, and a resistor ladder arrangement coupled to a non-inverting input terminal of the amplifier to generate a voltage based on a digital control word. The arrangement includes a first, least-significant bit, segment arranged in one of an R-2R or unit-R configuration, a second, most-significant bit, segment including one or more units each including a second-segment-resistor having a resistor terminal coupled to a respective second switch and having a second resistance, RMSB, and a third segment including one or more third-segment-resistors coupled in parallel to the non-inverting input terminal and connected to a first reference voltage terminal. M2 designates a number of bits in the digital control word for controlling the second switches, and the third segment has a total resistance, Rsp, based on M2.

Abstract: A deep neural network-based method for detecting living cell morphology may include identifying and locating one or more living cells within an acquired image to be detected by using a deep neural network-based target detection model, so as to extract one or more living single cell images. segmenting the image of the one or more living single cells by using a deep neural network-based cell segmentation model, so as to obtain one or more feature part of the one or more living single cells. and analyzing and determining a morphological parameter of the one or more living single cells based on the one or more feature parts. Thus, the activity of the detected cells can be ensured, and a non-destructive, accurate, and rapid detection of living cell morphology can be achieved.

Abstract: A system for additively manufacturing a build part. The system includes a build platform configured for disposition within a resin tank, and a light source configured to cure a layer of resin. The layer of resin is disposed adjacent to a pre-cure build surface of the build part. The system also includes a constrained surface located between the build platform and the light source and configured to form a boundary for the layer of resin disposed between the constrained surface and the pre-cure build surface. The constrained surface is configured to vibrate to reduce a separation force required to separate the constrained surface from a post-cure build surface of the build part. The system also includes a vibratory source configured to vibrate the constrained surface.

Abstract: Providing a human primary myelofibrosis (PMF) cell strain, a construction method therefor and use thereof. The PMF cell strain is named as ZYXY-M2, and is deposited in China Center for Type Culture Collection (Wuhan University, Wuhan, China), with a preservation number of CCTCC NO: C202145. The present application is obtained by extracting and separating mononuclear cells from peripheral blood of a PMF patient and culturing in vitro for continuous natural passage. The leukemia cell strain is negative for JAK2, CALR, MPL mutation, positive for ASXL1, TP53, IKZF1, IDH1, FLT3 and TET1. The cell strain has good proliferation ability in vitro, and can be used as a cell material to study the pathogenesis of PMF and individualized treatment in vitro. Meanwhile, it can also be used to screen and evaluate drugs for in vitro and in vivo research of human PMF and guide clinical medication.

Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: A temperature monitoring method of a brake of a freight vehicle based on TBOX is provided, including: determining a weight of the freight vehicle based on OBD data of the freight vehicle collected by the TBOX; inputting the weight, the OBD data, a longitudinal slope in a high-precision map to determine the temperature of the brake of the freight vehicle; setting a temperature warning threshold of the brake based on its performance parameters of the freight vehicle, and determining a first driving state and a second driving state in a front road section with the determined temperature of the brake, and generating a warning signal and a forewarning signal of the freight vehicle. The monitoring method improves accuracy of the brake temperature by introducing altitude variation of the front road section and weight of the freight vehicle, and provides powerful data support for a safe driving.

Abstract: This application provides an image processing method and a related device thereof, and relates to the image processing field. The image processing method includes: displaying a preview interface, where the preview interface includes a first control; detecting a first operation on the first control; obtaining multiple frames of initial images in response to the first operation, where channel signals included in the multiple frames of initial images are different; processing each frame of initial image in the multiple frames of initial images, to obtain a processed image corresponding to each frame of initial image; and fusing the multiple frames of processed images to obtain a target image. In this application, multiple frames of initial images that include different channel information are obtained, and dynamic image fusion is completed by using the different channel information, thereby implementing maximum restoration of an image color and optimal performance of a signal-to-noise ratio.

Abstract: A temperature monitoring method of a brake of a freight vehicle based on TBOX is provided, including: determining a weight of the freight vehicle based on OBD data of the freight vehicle collected by the TBOX; inputting the weight, the OBD data, a longitudinal slope in a high-precision map to determine the temperature of the brake of the freight vehicle; setting a temperature warning threshold of the brake based on its performance parameters of the freight vehicle, and determining a first driving state and a second driving state in a front road section with the determined temperature of the brake, and generating a warning signal and a forewarning signal of the freight vehicle. The monitoring method improves accuracy of the brake temperature by introducing altitude variation of the front road section and weight of the freight vehicle, and provides powerful data support for a safe driving.