Abstract: A millimeter-wave radar housing material capable of being laser welded, and a preparation method therefor, which belong to the technical field of millimeter-wave radar housing manufacturing. The millimeter-wave radar housing material specifically comprises the following components in parts by weight: 50-90 parts of polypropylene, 10-50 parts of glass fiber, 0.2-0.8 part of a nucleating agent, 0.5-1 part of a compatibilizer, 0.1-0.5 part of a black colorant, 0.1-0.5 part of an antioxidant, and 0.1-0.8 part of a light stabilizer. The radar housing material disclosed by the present invention has the advantages of low dielectricity, being lightweight, high strength and high heat resistance, can transmit a near-infrared light beam, and has laser weldability.

Abstract: A device for detecting sludge moisture content based on density includes a detection chamber that is provided with a feeding mechanism, a compacting mechanism, a measuring mechanism, and an information processing unit. The feeding mechanism is provided on one side of the compacting mechanism, the measuring mechanism is provided on another side of the compacting mechanism, and the measuring mechanism is connected to the information processing unit. The feeding mechanism comprises a feeding base which is provided with a limited sliding block; and the limited sliding block is connected to a feeding sliding rail. The compacting mechanism comprises a feeding base, a rotating cam is provided at a lower end of the feeding base, and a hydraulic equipment is provided at an upper end of the feeding base. The measuring mechanism comprises a weighing base, and a height detecting base is provided at an upper end of the weighing base.

Abstract: The present disclosure discloses a drive apparatus for oral cavity cleaning, a brush handle assembly, and an axial auxiliary member. The drive apparatus at least includes a housing component, a power output shaft, an axial drive component, an axial auxiliary component, and a servo rotating assembly. The housing component extends along a first axis and has an accommodation chamber. The power output shaft extends along the first axis and separately passes through the axial drive component, the axial auxiliary component and the servo rotating assembly, and at least one end of the power output shaft extends out of the housing component. The axial auxiliary component is connected to the power output shaft and the housing component, respectively.

Abstract: A method and an apparatus for named entity recognition, and a non-transitory computer-readable recording medium are provided. In the method, a span in a sequence to be predicted is determined, a vector representation of the sequence is generated using a pre-trained recognition model, and a vector representation of the span is obtained. Then, the vector representation of the span is compared with final representations of entity type identifiers obtained to determine an entity type of the span. The recognition model is obtained by performing fine-tuning training on a pre-trained language model based on an objective function of contrastive learning, the objective function is constructed based on vector representations of spans in training samples, so that distances between the vector representations of the spans belonging to the same class are minimized and distances between the vector representations of the spans belonging to different classes are maximized.

Abstract: A method for preparing a phosphorus adsorbent, including: drying a waste gypsum to remove moisture; crushing and sieving an obtained dried gypsum to obtain a crushed gypsum; subjecting the crushed gypsum to pyrolysis in an inert gas atmosphere to obtain a pyrolysis product; and grinding and sieving the pyrolysis product to obtain the phosphorus adsorbent; wherein based on a total weight of the waste gypsum, the waste gypsum includes less than 47 wt % of SO3, more than 45 wt % of CaO, and less than 1 wt % of Al2O3. Also provided is a phosphorus adsorbent prepared by the method.

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: A method of fine-tuning a large language model includes steps of obtaining training data containing first training data and second training data, the first training data being inclusive of a question, a plurality of candidate option numbers and their corresponding candidate option contents, and a correct option number and its corresponding correct option content, the correct option number and its corresponding correct option content being one of the plurality of the candidate option numbers and their corresponding candidate option contents, respectively, and the second training data being obtained by masking a candidate option content in the first training data; inputting the training data into the large language model to generate a predicted result by utilizing the large language model; and optimizing the large language model based on the predicted result as well as the correct option number and its corresponding correct option content.

Abstract: Provided is a method for synthesis of carbon-14 radioisotope-labeled flonicamid. Carbon-14 radioisotope is labeled on a pyridine ring in a flonicamid molecule. Carbon-14-labeled barium carbonate is adopted as a radioisotope raw material and then subjected to a reaction with concentrated sulfuric acid to release carbon-14-labeled carbon dioxide, and the carbon-14-labeled carbon dioxide is then subjected to reactions such as reduction, formylation, dehydration, substitution, cyclization, and amide condensation to synthesize a target product.

Abstract: The present disclosure discloses a method for strengthening a biological manganese oxidation using a magnetic field and use thereof. The method includes steps of inoculating a manganese-oxidizing microorganism into a culture medium containing Mn2+, performing magnetization treatment in a culture process, and then collecting a biogenic manganese oxide. The method includes steps of performing a primary magnetic field treatment at a magnetic field intensity of 0.2-50 mT for 1-5 h when culturing is performed for 6-12 h, continuing culturing after the primary magnetization treatment, and performing magnetization treatment once every other 24 h for culture time of 72 h. A magnetic field is applied to accelerate an oxidation rate of a manganese-oxidizing microorganism to Mn2+ and a biological manganese oxidation rate is respectively improved by 36.4% and 23.8% under an action of an alternating magnetic field or a constant magnetic field within 72 h.

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: A method for deploying a service includes a controller that creates a service instance corresponding to a service, and creates, in the service instance, a first network instance and a second network instance that correspond to the service. The first network instance is a network instance corresponding to a first device, and the first network instance includes a device identifier of the first device. The second network instance is a network instance corresponding to a first cloud provider edge PE, and the second network instance includes a device identifier of the first cloud PE. The first cloud PE is for connecting to the first cloud.

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: Disclosed are an additive composition for a lithium-ion battery electrolyte, an electrolyte including the additive composition, and a use of the electrolyte. The additive composition includes an unsaturated cyclic carbonate and an unsaturated chain carbonate. The unsaturated cyclic carbonate comprises at least one of the following compounds: formula (1-a), formula (1-b) and formula (1-c); the unsaturated chain carbonate has a general structural formula represented by formula (2), wherein R1 is a hydrocarbyl or fluorinated hydrocarbyl containing 1 to 6 carbon atoms, R2 is a hydrocarbyl or fluorinated hydrocarbyl containing 1 to 6 carbon atoms; and group A is a vinylidene or an ethynylene. Lithium ion batteries using the electrolyte have the advantages of low impedance, excellent cycle performance and the like, and the batteries also have excellent high-temperature cycle performance and high-temperature storage performance.

Abstract: A system for database backup including a controller, a metadata database coupled to the controller, a backup tool coupled to the controller, and a plurality of nodes coupled to the backup tool and accessed through a file system. The controller is configured to determine a first data change in node; in response to determining the first data change, freeze the file system; and generate an incremental snapshot of the at least one of the plurality of nodes (where the incremental snapshot including a portion of the at least one of the plurality of nodes). The controller is also configured to upload an encrypted copy of the incremental snapshot to a cloud storage; update the metadata database by storing an entry associating the incremental snapshot with the at least one of the plurality of nodes and unfreezing the file system.

Abstract: The present application is related to a method for controlling heavy metal scouring pollution in mines by using a humified product, which comprises steps of: (1) carrying out mixed fermentation on sludge and hyperthermophiles to breed polar humified groups, and then carrying out mixed fermentation on the fermented material and a native material of humus precursors to induce massive production of humus until the humus content reaches a required standard; and (2) mixing and maintaining the humified product of the sludge reaching the standard with mine soil polluted by heavy metals to remedy the polluted mine.

Abstract: A prompt tuning method, a prompt tuning apparatus, and a non-transitory computer-readable recording medium are provided. In the method, an original prompt input by a user is received. Then, a first model is guided to start a question answering process based on the original prompt, and the first model is requested to answer the original prompt according to the original prompt and context information obtained in the question answering process. The question answering process includes at least one of a process where the first model asks a question and the second model answers the question, and a process where the first model asks a question and answers the question. Then, the answer to the original prompt generated by the first model is obtained.

Abstract: A fungus having manganese oxidation capacity is provided. The fungus can oxidize Mn2+ in a water body into a water-insoluble manganese oxide; and the Mn2+ oxidizing fungus is Cladosporium sp. XM01 strain with the accession number of CGMCC NO. 21083. The Cladosporium sp. XM01 strain is used to oxidize Mn2+ in a natural water body, and has stable operation within a range of room temperature (15-30° C.) and a range of neutral pH (6.0-7.5) and high Mn2+ oxidation efficiency; moreover, the XM01 strain may oxidize Mn2+ cyclically, thereby achieving the in-situ remediation of water bodies or soils polluted by heavy metals or trace organic substances. The manganese oxides generated through oxidization in the growth process of the strain have a good application potential in sewage treatment, water environment restoration, soils and other fields.

Abstract: Disclosed is a method for improving alkaline soil and enhancing carbon capture using a sludge stabilization product. The method includes the following steps: subjecting sludge to aerobic composting to obtain a stabilized product A; subjecting one part of the stabilized product A to extraction to obtain humus B; subjecting the other part of the stabilized product A to hydrothermal extraction to obtain a soluble organic matter rich in amino acids and organic salts, and conducting evaporation to dryness to obtain a mixture C; subjecting a residue obtained during the extraction of the humus B and the mixture C to pyrolysis to obtain biochar D rich in metal oxides; mixing the stabilized product A, the humus B, the mixture C, and the biochar D fully to obtain a soil amendment E; and applying the soil amendment E to a surface layer of alkaline soil, and then cultivating a plant.

Abstract: Disclosed are a semantic matching and retrieval method and apparatus. The semantic matching and retrieval method includes steps of obtaining both the vector representation of a query text and the vector representation of a document text; obtaining the final vector representation of the query text; obtaining the final vector representation of the document text; calculating, based on the final vector representation of the query text and the final vector representation of the document text, the similarity score between the query text and the document text; and selecting, based on the similarity scores between the query text and a plurality of document texts, a document text matching the query text from the plurality of document texts.

Abstract: A method and an apparatus for machine reading comprehension, and a non-transitory computer-readable recording medium are provided. In the method, a paragraph-question pair is obtained, and subword vectors corresponding to subwords in the paragraph-question pair are generated. Then, for each subword, relative positions of the subword with respect to the other subwords are determined based on distances, and self-attention information of the subword in a first part and mutual attention information of the subword in a second part are calculated by using the relative positions and the subword vector. Then, a fusion vector of the subword is generated based on the self-attention information and the mutual attention information. Then, the fusion vectors of the subwords are input to a decoder of a machine reading comprehension model so as to obtain an answer predicted by the decoder.