Abstract: A system receives ETL specification for processing stream data, including a transform operation represented using a database query specification. The system generates a dataflow graph of a sequence of database queries by decomposing the database query into a first database query that generates an intermediate results table, and a second database query that receives as input the intermediate results table and outputs data used for performing the transform operation. The system executes the sequence of database queries for performing the transform operation on stream data received from the source. When receiving an incremental data set, the system determines an output change set based on the received incremental data set by traversing an execution plan and processing each operator in the execution plan, and computing a change set of a particular operator from the change sets output by the one or more other operators based on the incremental data set.

Abstract: The present invention relates to the technical field of household appliances. Provided is a multifunctional air fryer. In the air fryer, when a heating tube of a heating assembly faces downwards, a pot such as a fryer is placed between the heating tube and a base, a food product is placed in the fryer, and the heating tube emits heat to fry the food product in the fryer, thereby achieving a fryer function; and since the heating assembly is rotatably connected to a rotating assembly and a supporting rod is fixedly connected to the rotating assembly, when the heating assembly rotates the heating tube to face upwards by means of the rotating assembly, a pot such as a frying pan is placed on the heating tube, a food product is placed in the frying pan.

Abstract: A mobile power station is disclosed. The mobile power station includes an enclosure configured to be mounted on a wheeled chassis; an electrical system positioned in the enclosure, the electrical system including an electrical storage unit and is configured to receive and supply electric energy; and at least one charging bank electrically connected to the electrical system, the at least one charging bank configured to transmit electric energy from the electrical system to an electric device.

Abstract: Disclosed is a method and apparatus for performing multi-agent meta reinforcement learning. The method for performing multi-agent meta reinforcement learning may include: selecting an event by extracting trajectory information for a task for pre-learning; defining a local group and a local state including one or more agents based on the selected event; learning a latent vector based on the defined local group and local state; and learning a strategy based on the latent vector and an action of the one or more agents.

Abstract: The disclosure provides an energy station system, a control method of the energy station and an energy station. The energy station system includes at least one input energy source, at least one load, at least one central control module, and a switchable energy module. The switchable energy module switches its own working state based on a supply-demand relationship between the input energy source and the load, and the central control module controls the input energy source to supply power to the load. Through arranging the switchable energy module, it may be used to switch its working state according to the supply-demand relationship between the input energy source and 10 the load, so as to supplement the supply and demand imbalance between the input energy source and the load as characteristics of the input energy source or a DC load.

Abstract: A GLP-1/GIP dual-targeted polypeptide, containing a first polypeptide having the following amino acid sequence: X1X2X3GT FX4SDY SX5X6X7X8 X9X10X11X12X13 X14FX15X16W LX17X18X19. The GLP-1/GIP dual-targeted polypeptide can effectively reduce the weight and blood sugar level.

Abstract: A system receives ETL specification for processing stream data, including a transform operation represented using a database query specification. The system generates a dataflow graph of a sequence of database queries by decomposing the database query into a first database query that generates an intermediate results table, and a second database query that receives as input the intermediate results table and outputs data used for performing the transform operation. The system executes the sequence of database queries for performing the transform operation on stream data received from the source. When receiving an incremental data set, the system determines an output change set based on the received incremental data set by traversing an execution plan and processing each operator in the execution plan, and computing a change set of a particular operator from the change sets output by the one or more other operators based on the incremental data set.

Abstract: A system receives ETL specification for processing stream data, including a transform operation represented using a database query specification. The system generates a dataflow graph of a sequence of database queries by decomposing the database query into a first database query that generates an intermediate results table, and a second database query that receives as input the intermediate results table and outputs data used for performing the transform operation. The system executes the sequence of database queries for performing the transform operation on stream data received from the source. When receiving an incremental data set, the system determines an output change set based on the received incremental data set by traversing an execution plan and processing each operator in the execution plan, and computing a change set of a particular operator from the change sets output by the one or more other operators based on the incremental data set.

Abstract: The present disclosure relates to an electrode for a secondary battery and a secondary battery comprising the same. The present disclosure is to provide an electrode which may prevent a short between electrodes in a secondary battery and to improve safety of a battery by preventing a short between an anode and a cathode.

Abstract: According to an embodiment, an electrode for a secondary battery is provided, the electrode for a secondary battery including: an electrode current collector, and an electrode mixture layer and an insulating layer on at least one surface of the electrode current collector, wherein the insulating layer includes a copolymer, and the copolymer includes a repeating unit having an imide group and a rubber-based repeating unit. According to an embodiment of the present disclosure, it is possible to prevent ignition from occurring in the lithium secondary battery to improve safety.

Abstract: A heat exchange system and a method for determining whether flow of cooling medium passing through a heat exchanger is too low. The heat exchange system includes a refrigerant flow path in which refrigerant circulates; a cooling medium flow path in which cooling medium circulates; and a heat exchanger connected to both the refrigerant flow path and the cooling medium flow path so that the refrigerant and the cooling medium exchange heat in the heat exchanger. The heat exchange system includes a first temperature sensor arranged at a cooling medium inlet of the heat exchanger, a second temperature sensor at a cooling medium outlet of the heat exchanger, and a controller in communication with the first temperature sensor and the second temperature sensor. The controller is configured to determine whether the flow of cooling medium in the heat exchanger is too low based on a temperature difference.

Abstract: The present disclosure provides a bionic Australian thorny devil grinding wheel, a grinding device, and a preparation process, and relates to the field of grinding equipment. For the problem of the poor effect of conveying grinding fluid by a grinding wheel at present, imitating semi-open capillary channels and a honeycomb structure on the skin of the Australian thorny devil, prisms with isosceles trapezoidal bottom surfaces are arranged on a matrix in sequence to form directional liquid self-conveying flow channels and a superhydrophilic honeycomb-like hexagonal distribution structure.

Abstract: A method includes receiving text-to-speech (TTS) data and outputting synthetic speech using an audio output device of a user device. The method also includes receiving an input audio data stream captured using an audio capture device of the user device and determining a first frame boundary in the input audio data stream. The input audio data stream includes target speech and an echo of the synthetic speech, while the first frame boundary represents a first alignment of the TTS data and the echo of the synthetic speech. Using a linear acoustic echo canceller, the method also includes determining a second frame boundary in the input audio data stream and processing the input audio data stream based on the second frame boundary to generate enhanced audio. The second frame boundary represents a second alignment of the TTS data and the echo of the synthetic speech.

Abstract: Provided are a method and server for providing a content list. The method and server for providing a content list includes: providing source content to a chat room, receiving a request for providing a content list related to the source content from a first terminal of a first member; providing at least one of a first content list including at least one keyword-related content selected from among the entire contents stored in the server based on a keyword of the source content and a second content list including at least one group-related content belonging to the same group as a group of the source content among the entire contents, receiving information on selection content selected by the first member among the contents included in the at least one content list, from the first terminal, and providing the selection content to the chat room.

Abstract: The present disclosure relates to a method and an apparatus for controlling production lines based on prediction of machine learning models. The method and apparatus: obtain a new product differentiation index (PDI) by obtaining a consumer satisfaction coefficient for each feature of predetermined features and a degree of differentiation of the each feature, obtain a demand creation index (DCI), building a demand forecasting machine learning model through Gaussian process regression of the PDI and the DCI; derive an optimal profile for the new product by using the demand forecasting machine learning model; predict the sales volume of the new product by using the demand forecasting machine learning model; and transmit a control signal to the production lines, such that a production volume of the new product is directly controlled, in real time, based on the predicted sales volume.

Abstract: An intelligent waste wooden formwork recovery and recycling system includes a screening part, a feeding part, and a processing part. The screening part includes a wood board unit, a wood strip unit and a wood block unit disposed inside a frame unit. The feeding part includes three conveying units inclined and disposed within an installation unit, and ends of the three conveying units are respectively aligned with the wood board unit, wood strip unit and wood block unit. The processing part includes a compaction unit, a moving unit, a discharging unit, a gauze unit, and a glue brushing unit sequentially disposed on a bracket unit. Wood materials are classified into three types and the three-layer conveying mechanism effectively controls an addition order of the wood material, significantly improving an utilization rate of the wood materials and ensuring a uniform density distribution of the compacted wood materials.

Abstract: An image processing apparatus and method using an image processing model, and a training apparatus and method for the image processing model are provided. The image processing apparatus includes a memory including instructions and a processor configured to execute the instructions, wherein, when the instructions are executed by the processor, the processor is configured to determine normative attribute information and structural feature information of a normative space of point clouds included in a plurality of images, transform the normative attribute information into time domain attribute information of a time-domain space, based on the structural feature information and a transformation model that is based on a neural network, and generate a rendered image for the plurality of images, based on the time domain attribute information.

Abstract: The present disclosure provides an MR-DC full configuration method applied to a target master node-central unit (MN-CU), including: in response to determining that a target master node-distributed unit (MN-DU) completes full configuration, sending an indication message to a target secondary node (SN), with the indication message configured to instruct the target SN to perform full configuration. The present disclosure further provides an MR-DC full configuration apparatus, a computer device, and a readable medium.

Abstract: An intelligent production line for turning tool bit cavities and an application method are provided, which solve the problem that a production line in the prior art has low working efficiency. The intelligent production line has the beneficial effects of a compact arrangement structure, higher safety and improved working efficiency. The intelligent production line for turning tool bit cavities includes a robot. Material tables and at least one machining center are arranged around the robot. A transfer station used for transferring materials is arranged between the machining center and the robot. A protective fence is arranged between a position above the material tables and the robot, and between the transfer station and the robot. The robot is provided with a mechanical arm including a base plate. The base plate is provided with at least one clamping jaw and fixed with a laser detecting unit for detecting the materials.

Abstract: The present invention relates to a novel stress protein variant and a method of producing an L-aromatic amino acid using the same. The stress protein variant is obtained by substituting one or more amino acids in the amino acid sequence constituting glutathione reductase or stress protein B to change the activity of the protein, and a recombinant microorganism comprising the variant is capable of efficiently producing an L-aromatic amino acid.