Abstract: The present invention provides a degradable microbead comprising a polymer molecule crosslinked by a crosslinking agent, wherein the polymer molecule and/or the crosslinking agent comprises a sensitive chemical bond that is cleavable through a chemical and/or light treatment, thereby resulting in the degradation of the degradable microbead. The present invention also provides a method of separating a target protein from a sample. By using the degradation of the degradable microbead to replace an elution step in protein purification, it is possible to select a combination of target protein and affinity ligand with a stronger affinity, thereby improving the protein purification efficiency. The method is especially suitable for the high-throughput preparation of multiple protein samples, for example providing a protein sample for electron microscope observation or mass spectrometry measurement.

Abstract: A synchronous rectification drive method and drive circuit for totem pole PFC are provided. The drive method includes: in a positive half-cycle, providing a first pulse width modulation (PWM) signal to the second switching transistor, switching on the fourth switching transistor, switching off the first and the third switching transistor first, and when a sampling voltage is greater than a predetermined first voltage, providing a second PWM signal to the first switching transistor, where the second PWM signal is opposite to the first PWM signal; and in a negative half-cycle, providing a third PWM signal to the first switching transistor, switching on the third switching transistor, switching off the second and the fourth switching transistor first, and when the sampling voltage is less than a predetermined second voltage, providing a fourth PWM signal to the second switching transistor, where the fourth PWM signal is opposite to the third PWM signal.

Abstract: The present disclosure discloses a question analysis method, a device, a knowledge base question answering system and an electronic equipment. The method includes: analyzing a question to obtain N linearized sequences, N being an integer greater than 1; converting the N linearized sequences into N network topology maps; separately calculating a semantic matching degree of each of the N network topology maps to the question; and selecting a network topology map having a highest semantic matching degree to the question as a query graph of the question from the N network topology maps. According to the technology of the present disclosure, the query graph of the question can be obtained more accurately, and the accuracy of the question to the query graph is improved, thereby improving the accuracy of question analysis.

Abstract: Devices for radiative cooling and optical waveguiding are provided, wherein the devices comprise a fabric including one or more fibers extending for a length in a longitudinal direction and a plurality of void structures positioned within each of the one or more fibers and extended over the length of each of the one or more fibers. Each of the plurality of void structures is configured to scatter at least a portion of an electromagnetic radiation received thereon to thereby radiatively cool the object.

Abstract: The present disclosure discloses a method, apparatus, device, and storage medium for training a model, relates to the technical fields of knowledge graph, natural language processing, and deep learning. The method may include: acquiring a first annotation data set, the first annotation data set including sample data and a annotation classification result corresponding to the sample data; training a preset initial classification model based on the first annotation data set to obtain an intermediate model; performing prediction on the sample data in the first annotation data set using the intermediate model to obtain a prediction classification result corresponding to the sample data; generating a second annotation data set based on the sample data, the corresponding annotation classification result, and the corresponding prediction classification result; and training the intermediate model based on the second annotation data set to obtain a classification model.

Abstract: A method and device for controlling a wind turbine and a storage medium are provided. The method includes obtaining a mapping of the wind turbine; determining a starting power for starting an advance pitch control based on the mapping of the wind turbine; in response to a rotation speed of the wind turbine reaching a first rated rotation speed and a power of the wind turbine reaching the starting power, increasing a motor torque and increasing a pitch angle to make the hub thrust of the turbine change by following the limit boundary of hub thrust; and increasing the pitch angle to maintain the rotation speed of the wind turbine at the first rated rotation speed until a target wind speed is reached, in response to the power of the wind turbine being increased to the exceeded power.

Abstract: A technical solution for processing a model generation result, which relates to the field of artificial intelligence technologies is disclosed. An implementation includes: disassembling a text generation result of a generative large model to obtain a plurality of result logic units; wherein each result logic unit includes a segment in the text generation result; each segment is capable of independently identifying one premise or conclusion in a logical inference relationship of the text generation result; and the text generation result is a response result generated by the generative large model based on text input information; generating a logical inference graph capable of characterizing a logical inference relationship among the plurality of result logic units based on the plurality of result logic units; and determining whether logical inference of generation of the text generation result by the generative large model is correct or not based on the logical inference graph.

Abstract: Systems and methods of generating and processing one-time pads (OTPs) for use in secure communication are provided. The systems comprise a processor and a memory storing instructions which when executed by the processor configure the processor to perform the methods. One method comprises generating a set of OTPs, seeding an Internet of Things (IoT) device with the OTPs, and securely providing a copy of the OTPs to a receiving server that will receive communications from the IoT device encrypted with the OTPs. Another method comprises generating a payload for a message packet, determining a hash of the payload, encrypting the hash and the payload using one of a set of OTPs stored in a memory of the IoT device, inserting before the payload an identifier associated with the one of the OTPs and the hash of the payload, and transmitting the message packet to the receiving server.

Abstract: Provided are an anti-OX40 antibody, and a pharmaceutical composition and application thereof. The anti-OX40 antibody or an antigen-binding fragment and pharmaceutical composition thereof can be used for treating a T cell-related disease.

Abstract: Devices for radiative cooling and optical waveguiding are provided, wherein the devices comprise a fabric including one or more fibers extending for a length in a longitudinal direction and a plurality of void structures positioned within each of the one or more fibers and extended over the length of each of the one or more fibers. Each of the plurality of void structures is configured to scatter at least a portion of an electromagnetic radiation received thereon to thereby radiatively cool the object.

Abstract: Provided in the present invention are an anti-BCMA antibody, a pharmaceutical composition of same, and applications thereof. The anti-BCMA antibody of the present invention or an antigen binding fragment of same and the pharmaceutical composition thereof are applicable in treating B cell-related diseases.

Abstract: Devices for radiative cooling and optical waveguiding are provided, wherein the devices comprise a fabric including one or more fibers extending for a length in a longitudinal direction and a plurality of void structures positioned within each of the one or more fibers and extended over the length of each of the one or more fibers. Each of the plurality of void structures is configured to scatter at least a portion of an electromagnetic radiation received thereon to thereby radiatively cool the object.

Abstract: Systems and methods for radiative cooling and heating are provided. For example, systems for radiative cooling can include a top layer including one or more polymers, where the top layer has high emissivity in at least a portion of the thermal spectrum and an electromagnetic extinction coefficient of approximately zero, absorptivity of approximately zero, and high transmittance in at least a portion of the solar spectrum, and further include a reflective layer including one or more metals, where the reflective layer has high reflectivity in at least a portion of the solar spectrum.

Abstract: A search method based on a neural network model is provided. The neural network model includes a semantic representation model, a recall model, and a ranking model. The present disclosure relates to the field of artificial intelligence, and in particular to the technical field of search. An implementation of the method comprises: inputting a target search and a plurality of objects to be matched to the semantic representation model to obtain a first output of the semantic representation model; inputting the first output of the semantic representation model to the recall model, and obtaining at least one recall object matching the target search from the plurality of objects to be matched by using the recall model; and inputting a second output of the semantic representation model to the ranking model, and obtaining a matching value of each of the at least one recall object by using the ranking model.

Abstract: The present disclosure relates to complexes comprising caffeine and tannic acid as well as emulsions and beverages comprising these complexes which slow the release of the caffeine. Also described are methods of preparing the complexes and emulsions and beverages comprising caffeine-tannic acid complexes.

Abstract: The present disclosure relates to colloids comprising caffeine-tannic acid complexes which slow the release of the caffeine. Also described are methods of preparing the colloids and beverages comprising colloids comprising caffeine-tannic acid complexes.

Abstract: The present disclosure provides a multi-system-based intelligent question answering method and apparatus, and a device, relating to the field of artificial intelligence, in particular to the field of knowledge graph. The specific implementation solution is: determining a question category of question information in response to a question answering instruction of a user, wherein the question answering instruction is used to indicate the question information; determining a query engine corresponding to the question category, and invoking multiple question analysis systems corresponding to the query engine according to the query engine; and feeding back answer information to the user when the answer information corresponding to the question information is determined according to a current question analysis system in a process of processing the question information by sequentially using the multiple question analysis systems according to system priorities of the question analysis systems.

Abstract: Systems and methods for radiative cooling and heating are provided. For example, systems for radiative cooling can include a top layer including one or more polymers, where the top layer has high emissivity in at least a portion of the thermal spectrum and an electromagnetic extinction coefficient of approximately zero, absorptivity of approximately zero, and high transmittance in at least a portion of the solar spectrum, and further include a reflective layer including one or more metals, where the reflective layer has high reflectivity in at least a portion of the solar spectrum.

Abstract: A method for treating or preventing saccharide-related diseases or disorders, comprising administering a therapeutically or prophylactically effective amount of a polymer comprising at least one boronic acid group to a subject having or at risk of having a saccharide-related disease or disorder.

Abstract: Systems and methods for radiative cooling and heating are provided. For example, systems for radiative cooling can include a top layer including one or more polymers, where the top layer has high emissivity in at least a portion of the thermal spectrum and an electromagnetic extinction coefficient of approximately zero, absorptivity of approximately zero, and high transmittance in at least a portion of the solar spectrum, and further include a reflective layer including one or more metals, where the reflective layer has high reflectivity in at least a portion of the solar spectrum.