Abstract: An electrical connector includes an insulating housing, a plurality of conductive terminals and two detecting terminals. The plurality of the conductive terminals are fastened in the insulating housing. Each conductive terminal has a first fastening portion. A front end of the first fastening portion extends frontward to form a contacting portion. The contacting portion is exposed to a front end of the insulating housing. The plurality of the conductive terminals include two power terminals and a plurality of signal terminals. The two detecting terminals are fastened in the insulating housing. Each detecting terminal is disposed between one signal terminal and one power terminal.

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.

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: A computer-implemented system and method for generating a data transaction log is disclosed. The method has the steps of: generating a registry; maintaining at least one data source agent, each data source agent being configured to: query the registry to receive an address of the one or more first data table; receiving, in response to the query, the at least one transaction logs from at least one first storage, wherein each transaction log is associated with a transaction time; compiling one or more modified transaction logs; and maintaining at least one streaming process, each streaming process being configured to: generate the at least one second data table based on the modified transaction logs for storage in the at least one second storage; and generate display based on the at least one second data table.

Abstract: A method and an apparatus are provided for training a named entity recognition (NER) model. By constructing tag annotations for tags and causing the tag annotations to contain information for indicating the positions of tokens in named entities, corresponding to the tags, respectively, in the process of training the NER model, the NER model can better understand the different positions of different tokens in the same named entity, so that the trained NER model can more accurately recognize named entities.

Abstract: Disclosed are methods and systems for synchronizing a user application on a remote device with a server application on a server. For instance, a method may include determining, by the remote device, that the user application contains new maintenance information, based on a synchronization table included in the user application, and based on determining that the user application contains the new maintenance information: generating, by the remote device, an update packet including the new maintenance information, sending, by the remote device, the generated update packet to the server, receiving, by the remote device, an indication from the server that the server application has been updated with the generated update packet, and updating, by the remote device, the synchronization table in the user application.

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: The present disclosure discloses a method for preparing a sludge conditioner from water supply sludge and a use of the sludge conditioner. The sludge conditioner is prepared by mixing the water supply sludge and sewage sludge. The method includes the following steps: mixing the water supply sludge and the sewage sludge in proportion, adding a pore forming agent, stirring a mixture uniformly, and conducting mechanical dehydration, air-drying, grinding, sieving, and pyrolysis to obtain the sludge conditioner. The conditioner is used in advanced oxidation technologies such as catalyzed/activated ozone oxidation, persulfate oxidation, and Fenton oxidation to condition the sludge and enhance dehydration performance.

Abstract: Methods and systems for database query efficiency improvement are disclosed. In one embodiment, a method includes mirroring a primary database to a secondary database; creating a testing database comprising the schema; receiving a query; running the query on the testing database; and evaluating the query by: identifying predicates in the query; determining most common values for each column name by querying the secondary database; creating, for each column name, a list comprising at least one of the most common values; creating a test predicate comprising one of the column names and an entry for the list corresponding to the column name; creating a test query comprising one or more test predicates; determining a resource utilization of the query by running each of the test queries on the secondary database; and providing, to a user interface for display, an efficiency improvement recommendation when the resource utilization exceeds a threshold.

Abstract: A method for sludge dewatering using kitchen waste to synergistically enhance a coupling of an anaerobic biological acidification and a low-temperature hydrothermal of excess sludge is disclosed. The method includes the following steps: first, uniformly mixing the excess sludge from a sewage treatment plant and the kitchen waste for an anaerobic biological acidification reaction at 36.5-37.5° C. for 2-4 days; then, concentrating the acidified mixture by centrifugation at a speed of 3000-5000 rpm for 5-10 min; performing a low-temperature thermal hydrolysis treatment on a residue obtained after removing a supernatant for 15-30 min at 100-140° C.; and after the thermal hydrolysis treatment is finished, cooling and dewatering to obtain a dewatered sludge cake and a dewatered filtrate. The new method realizes high-efficiency sludge dewatering and innocuous utilization of dewatered filtrate and sludge cake without adding chemical reagents and effectively avoids generating hardly-degradable chemical oxygen demand.

Abstract: The present disclosure relates to a traffic scheduling method and apparatus, and an electronic device and a computer-readable medium. The traffic scheduling method comprises: acquiring, by means of a traffic egress switch, a current packet to be sent, and forwarding the packet to a programmable switch, which is connected to the traffic egress switch; acquiring, by means of the programmable switch, a communication parameter corresponding to the packet, and determining a target port identifier of the packet according to the communication parameter; marking the packet according to the target port identifier of the packet, and returning the marked packet to the traffic egress switch; and determining, according to the target port identifier, a target output port corresponding to the packet from among a plurality of output ports of the traffic egress switch, and sending the packet by means of the target output port.

Abstract: A method and an apparatus for sequence labeling on an entity text, and a non-transitory computer-readable recording medium are provided. In the method, a start position of an entity text within a target text is determined. Then, a first matrix is generated based on the start position of the entity text. Elements in the first matrix indicates focusable weights of each word with respect to other words in the target text. Then, a named entity recognition model is generated using the first matrix. The named entity recognition model is obtained by training using first training data, the first training data includes word embeddings corresponding to respective texts in a training text set, and the texts are texts whose entity label has been labeled. Then, the target text is input to the named entity recognition model, and probability distribution of the entity label is output.

Abstract: A composite vortex reactor comprises a Rankine cyclone reactor and a Taylor vortex reactor. The Rankine cyclone reactor comprises a reaction chamber, a side wall of the reaction chamber is provided with a first inlet pipe and a second inlet pipe, and fluids entering the reaction chamber through the first inlet pipe and the second inlet pipe can form a gyro-fluid in the reaction chamber, and the middle of the top of the reaction chamber is provided with a gyroscopic outlet pipe. The Taylor vortex reactor comprises an inner cylinder and an outer cylinder which are coaxially provided, the inner cylinder is driven by a rotary driving device to rotate, an annular reaction space is formed between the inner cylinder and the outer cylinder. The upper end of the outer cylinder is provided with a reaction outlet pipe communicating with an upper portion of the annular reaction space.