Abstract: This present disclosure provides a perovskite-silicon-based laminated solar cell and a manufacturing method therefor. In one aspect, a method for manufacturing a solar cell includes: providing a substrate, where the substrate includes a silicon-based bottom solar cell, a charge combination layer, and a first carrier transport layer sequentially laminated. The first carrier transport layer has a textured structure. The method further includes forming, on the first carrier transport layer, a perovskite light absorption layer. Forming the perovskite light absorption layer includes forming a first perovskite layer based on a solution method performed with a perovskite solution, and forming the second perovskite layer based on a perovskite skeleton vacuum evaporation method.

Abstract: A vehicle steering control mechanism includes a shaft assembly and a limiting assembly. The shaft assembly includes a first shaft body, a second shaft body, and an outer tube. The first shaft body is configured to connect to a steering wheel, and the second shaft body is coaxially connected to the first shaft body and configured to move synchronously with the steering wheel. The second shaft body is connected to the limiting assembly. The limiting assembly is configured to limit a quantity of rotations of the steering wheel. The outer tube is coaxially connected to the first shaft body and the second shaft body. The second shaft body is mounted in the outer tube, and at least part of the limiting assembly is mounted in the outer tube. The mechanism may limit the quantity of rotations of the steering wheel, and has a small overall volume, thereby facilitating an arrangement.

Abstract: Compositions and methods for conferring pesticidal activity to bacteria, plants, plant cells, tissues and seeds are provided. Compositions comprising a coding sequence for a toxin polypeptide are provided. The coding sequences can be used in DNA constructs or expression cassettes for transformation and expression in plants and bacteria. Compositions also comprise transformed bacteria, plants, plant cells, tissues, and seeds. In particular, isolated toxin nucleic acid molecules are provided. Additionally, amino acid sequences corresponding to the polynucleotides are encompassed, and antibodies specifically binding to those amino acid sequences. In particular, the present invention provides for isolated nucleic acid molecules comprising nucleotide sequences encoding the amino acid sequence shown in any of SEQ ID NO: 22 to 42, or the nucleotide sequence set forth in any of SEQ ID NO: 1 to 21, as well as variants and fragments thereof.

Abstract: Provided are a steering column for a vehicle and a vehicle. The steering column includes a first mounting plate, an adjustment plate, an upper column, an adjustment mechanism, and an energy absorption mechanism. The adjustment plate is movably connected to the first mounting plate in a first direction. The upper column is fixed to the adjustment plate. The adjustment mechanism includes a drive portion and a first adjustment portion. The drive portion is fixed to the first mounting plate. The energy absorption mechanism includes an energy absorption block and an energy absorption strip. The energy absorption block is connected to the adjustment plate and the first adjustment portion. The energy absorption block has an energy absorption groove extending in a curved shape. The energy absorption groove is movable along the energy absorption strip in the first direction when an impact force borne by the adjustment plate reaches a predetermined threshold.

Abstract: A clearance adjustment device for a steering column and a vehicle. The clearance adjustment device includes an inner adjustment plate, a middle adjustment plate and an outer adjustment plate, where the outer adjustment plate has a first groove, at least a portion of the middle adjustment plate is located in the first groove, and the inner adjustment plate is crimped to the middle adjustment plate. The clearance adjustment device further includes a first adjustment mechanism, where a first mounting groove is provided on a side of the middle adjustment plate facing a side wall of the first groove, and the first adjustment mechanism is located in the first mounting groove; and one end of the first adjustment mechanism is movably abutted against the side wall of the first groove in a first direction.

Abstract: A method for drivetrain load mitigation of grid-forming (GFM) doubly-fed induction generator (DFIG)-based wind turbine generator (WTG) based on phase angle feedforward, wherein: acquiring active power of a GFM DFIG-based WTG; calculating difference value between acquired active power of GFM DFIG-based WTG and active power reference value; inputting difference value into GFM control to obtain output signal; adding output signal and reference frequency value of virtual synchronous coordinate system to obtain frequency of virtual synchronous coordinate system; integrating the frequency to obtain output value; multiplying additional damping active power reference value of GFM DFIG-based WTG by control gain of phase angle feedforward control to obtain product result; adding product result and output value to obtain angle of virtual synchronous coordinate system, and based on the angle, obtaining control quantity for generator output voltage phase; based on control quantity, adjusting phase of actual output voltage

Abstract: Described are ?? T-cells that express a multivalent CLTX-CAR and also express a survival factor, a population of the ?? T-cells that express a multivalent CLTX-CAR and the survival factor, pharmaceutical compositions thereof, and methods of treating cancer or a tumor in a subject comprising administering to a subject an effective amount of the multivalent CLTX-CAR ?? T-cells and co-administering a chemotherapeutic agent, e.g., the chemotherapeutic agent to which the survival factor confers resistance.

Abstract: The invention relates to a method of storing carbon dioxide in a subterranean formation not containing any hydrocarbons, comprising injecting a surfactant into the subterranean formation, injecting carbon dioxide into the subterranean formation, wherein the surfactant is a compound of formula (I), wherein R1, R2, R3, and R5 are independently a hydrogen atom or an alkyl group, A is an alkylene group, and the total number of carbon atoms in the surfactant compound of formula (I) is from 10 to 24.

Abstract: A method and an apparatus for training a machine reading comprehension model, and a non-transitory computer-readable recording medium are provided. A training process is repeatedly performed using a training sample set to obtain a machine reading comprehension model. The training process includes inputting a sample article and a sample question into the machine reading comprehension model, generating a first predicted answer, and calculating a first loss between the first predicted answer and a sample answer; replacing the sample question with a mask to obtain a mask question, inputting the sample article and the mask question into the machine reading comprehension model, generating a second predicted answer corresponding to the mask question, and calculating a second loss between the second predicted answer and the sample answer; and updating the machine reading comprehension model so as to minimize a total loss.

Abstract: In one example, a calibration method includes receiving, from a sensor proximate a first conductor, a sensor signal representing a measurement of a magnetic field produced based on a first current flowing in the first conductor and a second current flowing in a second conductor, the first current including first and second current components having different frequencies, and the second current including third and fourth current components, the third current component phase shifted from, and having the same frequency as, the first current component and the fourth current component having a different frequency from the third current component, determining reference values of the first and second currents, and based on the sensor signal and the reference values of the first and second currents, determining for the sensor, a plurality of coupling coefficients representing magnetic field coupling between the first and second conductors.

Abstract: Described are ?? T-cells that express a non-signaling chimeric antigen receptor (CAR), wherein the CAR binds a tumor antigen such as CD19 or CD33. Also described are pharmaceutical compositions thereof and the method for the treatment of cancer such as leukemia.

Abstract: A method and an apparatus for named entity recognition, and a non-transitory computer-readable recording medium are provided. In the method, text elements are traversed according to a text span to obtain candidate entity words. Then, a class to which the candidate entity word belongs is recognized. The recognizing of the class includes generating a prompt template corresponding to the candidate entity word, and concatenating the text to be recognized and the prompt template to obtain a concatenated text; generating vector representations of the text elements in the concatenated text; generating the vector representation of the candidate entity word according to the vector representations of the text elements of each candidate entity word in the concatenated text, and the vector representation of the text element of the mask word; and classifying the vector representation of the candidate entity word to obtain the class of the candidate entity word.

Abstract: Examples of the present disclosure provide testing apparatuses, testing devices, testing methods and storage mediums. An example testing apparatus includes a first communication interface, a control circuit, a second communication interface and a thermostatic device. The first port of the control circuit is coupled to the first communication interface. The second port of the control circuit is coupled to the second communication interface, and the second communication port is further connected to the device under test. The third port of the control circuit is coupled to the thermostatic device. The thermostatic device includes a cavity in which the device under test is placed. The control circuit is configured to control the temperature inside the cavity of the thermostatic device and implement information transmission between the first communication interface and the second communication interface.

Abstract: A method includes at a first time, transmitting a first set of ultrasonic pulses from a first location. The method also includes, at a second time, receiving the first set of ultrasonic pulses at a second location. The method also includes, at a third time, transmitting a second set of ultrasonic pulses from the second location. The method also includes, at a fourth time, receiving a first echo of multiple echoes of the first set of ultrasonic pulses at the second location, in which the third time is the same as the first time, or is between the second time and the fourth time. The method also includes, at a fifth time, receiving the second set of ultrasonic pulses at the first location; and providing a flow rate measurement between the first and second locations based on the first time, the second time, the third time, and the fifth time.

Abstract: Disclosed are a table recognition method and apparatus. The table recognition method includes steps of obtaining an image vision feature and a character content feature of a table image; fusing the image vision feature and the character content feature of the table image to acquire a first fusion feature, and carrying out recognition based on the first fusion feature to acquire a table structure; and performing, based on the table structure, character recognition on the table image to acquire table character contents.

Abstract: Compositions and methods for conferring pesticidal activity to bacteria, plants, plant cells, tissues and seeds are provided. Compositions comprising a coding sequence for a toxin polypeptide are provided. The coding sequences can be used in DNA constructs or expression cassettes for transformation and expression in plants and bacteria. Compositions also comprise transformed bacteria, plants, plant cells, tissues, and seeds. In particular, isolated toxin nucleic acid molecules are provided. Additionally, amino acid sequences corresponding to the polynucleotides are encompassed, and antibodies specifically binding to those amino acid sequences. In particular, the present invention provides for isolated nucleic acid molecules comprising nucleotide sequences encoding the amino acid sequence shown in any of SEQ ID NO: 16 to 30, or the nucleotide sequence set forth in any of SEQ ID NO: 1 to 15, as well as variants and fragments thereof.

Abstract: Disclosed is a detection device for laser spot welding micro-weld spot quality based on laser ultrasound, comprising: a nanosecond pulsed laser configured to emit a laser; a half-wave plate configured to generate a phase difference of the laser; a scanning galvanometer configured to focus the laser as a point source and excite an ultrasonic wave on a surface of a sample; a multi-axis displacement platform configured to place and/or move the sample; a laser Doppler vibrometer configured to emit a probe light; an image sensor configured to acquire image data of the sample in a plurality of attitudes; an optical filter configured to receive the probe light to adjust an intensity of the probe light; and a processor configured to be in communication connection with the image sensor, the optical filter, the nanosecond pulsed laser, the scanning galvanometer, the multi-axis displacement platform, and the laser Doppler vibrometer.

Abstract: Ultrasonic ranging systems and methods that use coding to distinguish emitted bursts from multiple transducers temporally stagger the bursts emitted from the transducers. The stagger delay between bursts from different transducers in a sensing frame can be randomized between different sensing frames to prevent blind zones. The stagger delay can be relatively small (e.g., between 3 ms and 10 ms) as compared to delays required between bursts in a single-tone ranging system (which would need to be more on the order of between 30 ms and 40 ms, depending on the maximum detecting range of the ranging system). The coding of bursts can be selected to utilize the entire bandwidth of the bursting transducer so as to preserve short-range sensitivity over transducer ringing. Schemes in which some transducers in a system only listen for bursts from other transducers but do not themselves burst within a sensing frame are also described.