Abstract: A distributed data storage system comprises features for integration with application orchestrators such as Kubernetes, and includes a proprietary Container Storage Interface (CSI) driver. Features include setting snapshot scheduling and retention policies, and a “container data mover” that replicates data from a source to a distinct destination distributed data storage system. The migration may be configured one-to-one, one-to-many, unidirectional, and/or bi-directional. Metadata-based snapshots and metadata-based changed block tracking identify payload data to move from source to destination within application orchestrator frameworks at both ends. Payload data is migrated from source to destination using different techniques than those used for migrating metadata, e.g., kernel-to-kernel for copying payload data versus ordinary metadata writes. An illustrative barrier logic ensures that the migration follows a controlled progression of operations.

Abstract: Provided in the present disclosure is a control system for a heat supply apparatus of a nuclear power plant, comprising: a first-stage pressure measurement means configured for measuring a first-stage pressure of a turbine to obtain a first-stage pressure signal; a high-exhaust pressure measurement means configured for measuring an exhaust pressure of a turbine high-pressure cylinder to obtain an exhaust pressure signal; a steam extraction heating flow rate measurement means configured for measuring a steam extraction heating flow rate to obtain a steam extraction heating flow rate signal; a data acquisition module configured for acquiring and transmitting the measured first-stage pressure signal, the measured exhaust pressure signal and the measured steam extraction heating flow rate signal to a core operation processing module; the core operation processing module; and a the signal output module.

Abstract: The invention provides an asset-tracking system (100) for tracking a target tag (10) in a space (500), wherein the target tag (10) is configured to emit a target beacon signal, wherein the asset-tracking system (100) comprises a plurality of listener nodes (110) arranged in the space (500) and configured to detect the target beacon signal, wherein the asset-tracking system (100) comprises a control system (300), wherein the control system (300) has access to (i) listener location data and to (ii) map data, wherein in an operational mode: the control system (300) determines the presence of an object (200), wherein an object tag (210) is associated to the object (200), and wherein the object tag (210) is configured to emit an object beacon signal, wherein the plurality of listener nodes (110) are configured to detect the object beacon signal and to provide a related object signal to the control system (300); the control system (300) determines a confidence zone set (230) for each listener node (110) based on th

Abstract: The invention provides a target tag (10) for object tracking, wherein the target tag (10) is configured to detect listener beacon signals emitted by a plurality of listener nodes (110), wherein the target tag (10) has access to transmission power-related data and receiver sensitivity-related data of the plurality of listener nodes (110), and wherein in a tag operational mode the target tag (10) is configured to: detect the listener beacon signals and to determine related listener beacon signal strengths; determine a tag transmission power based on the related listener beacon signal strengths, the transmission power-related data, the receiver sensitivity-related data, and a predetermined goal number of reached listener nodes; and emit the target beacon signal at the tag transmission power.

Abstract: The present disclosure belongs to the technical field of hydraulic control, and relates to a velocity and position compound control system for a pump-valve dual-source driven hydraulic cylinder used in engineering machinery. The system includes a first power source, a first hydraulic pump, a second power source, a second hydraulic pump, a safety valve, a proportional directional valve, a pilot operated check valve, a single-rod hydraulic cylinder, a handle, a tank, a rotating speed sensor, a first pressure sensor, a second pressure sensor, a third pressure sensor, a temperature sensor, a position transmitting unit, magnetic induction marks, a count correction module, an integrator module, a calculation control module, a signal acquisition module, a data storage module, a cloud memory, a communication protocol module, a fault diagnosis module, and a process monitoring module.

Abstract: A self-stabilizing integrally-molded pillar filling structure for underground mines is provided, belonging to the field of supporting structures, which includes an airbag, and the airbag is provided with a feed filling port and a gas inflation port; a telescopic bearing piece, and the telescopic bearing piece is fixedly provided on an inner surface of the airbag and is capable of expanding and contracting with volume change of an inner cavity of the airbag; and steel hoops, and the steel hoops are fixedly provided on an outer surface of the airbag.

Abstract: An online concierge system includes a marketplace automation engine for setting various control parameters affecting marketplace operation. The marketplace automation engine applies a hyperparameter learning model to the marketplace state data to predict a set of hyperparameters affecting a set of respective parameterized control decision models. The hyperparameter learning model is trained on historical marketplace state data and a configured outcome objective for the online concierge system. The marketplace automation engine independently applies the set of parameterized control decision models to the marketplace state data using the hyperparameters to generate a respective set of control parameters affecting marketplace operation of the online concierge system. The marketplace automation engine applies the respective set of control parameters to operation of the online concierge system.

Abstract: Provided in the present disclosure is a control system for a heat supply apparatus of a nuclear power plant, comprising: a first-stage pressure measurement means configured for measuring a first-stage pressure of a turbine to obtain a first-stage pressure signal; a high-exhaust pressure measurement means configured for measuring an exhaust pressure of a turbine high-pressure cylinder to obtain an exhaust pressure signal; a steam extraction heating flow rate measurement means configured for measuring a steam extraction heating flow rate to obtain a steam extraction heating flow rate signal; a data acquisition module configured for acquiring and transmitting the measured first-stage pressure signal, the measured exhaust pressure signal and the measured steam extraction heating flow rate signal to a core operation processing module; the core operation processing module; and a the signal output module.

Abstract: One or more trained computer models are used to determine, at different stages of an order, an estimated time range for delivery of the order at an online system. The online system retrieves a set of candidate ranges of delivery times for the order. The online system applies the one or more computer models trained to predict a value of a metric for each candidate range in the set of candidate ranges, based on one or more features associated with the order. The online system selects a range of delivery times for the order from the set of candidate ranges, based on the predicted value of the metric for each candidate range. The online system causes a device of the user to display a user interface with the selected range of delivery times for the order.

Abstract: A task execution method and apparatus for robots capable of freely constructing a network, and a storage medium are provided. The method includes: partitioning, by a server, an entire region of a warehouse to obtain local region(s) corresponding to the partitioned warehouse (S10); receiving capability feature information reported by each robot moving freely within a current warehouse range after the robot comes online (S20); determining, according to the capability feature information reported by the robot, a local center robot, and assigning corresponding to-be-executed task(s) to the local region obtained via the partitioning, such that robot(s) freely constructing a local network execute the to-be-executed task(s) (S30); and after the robot(s) have completed the to-be-executed task(s), receiving task completion information reported by a robot, and releasing the robot to be a free moving robot (S40).

Abstract: A plasma-activated gas disinfection device includes a plasma generating unit, a disinfection chamber, an air pump and a fluid control module, where the plasma generating unit works in a first working mode during a first time period, and generates a first plasma active gas in the first working mode; the plasma generating unit works in a second working mode during a second time period, and generates a second plasma active gas in the second working mode; and the first time period is before the second time period, and alternatively, the first time period is after the second time period, such that a disinfection object in the disinfection chamber is disinfected. The plasma generating unit in the present disclosure is a simple device, and only one discharge module is used for generating different plasma active gases.

Abstract: Provided are a method and an apparatus for displaying information of a virtual object, an electronic device, and a storage medium, the method including: displaying in a graphical user interface a first virtual scene and a first virtual object located in the first virtual scene; in response to a motion operation for the first virtual object, controlling the first virtual object to move in the first virtual scene, and controlling the range of the first virtual scene displayed in the graphical user interface to change correspondingly on the basis of the motion of the first virtual object; in response to a note adding operation, displaying in the graphical user interface note prompting information of at least one second virtual object; and, in response to a trigger operation for the note prompting information, adding note information to a target virtual object amongst the displayed at least one second virtual object.

Abstract: Embodiments relate to determining an availability of a service option for delivery of an order placed with an online system. The online system receives an order placed with the online system. The online system accesses a computer model trained to predict a value of metric for an order placed with the online system. The online system applies the computer model to predict the value of the metric for the order. The online system determines which service option of a plurality of service options of the online system is available for delivery of the order, based at least in part on the predicted value of the metric and a threshold. The online system causes the device of the user to display an availability of the determined service option for delivery of the order.

Abstract: An online concierge system generates a set of candidate estimated times of arrival (ETAs) for delivery of a set of items being purchased by a user. Each candidate ETA is scored by using a machine-learned model to estimate values for different criteria of interest, such as likelihood of acceptance of the ETA, cost of delivery of the items to the user, and the like. The values for the different criteria may be combined to generate the overall score for a candidate ETA. One or more of the highest-scoring ETAs are selected and provided to the user, who may then approve one of the ETAs for use with delivery of the user's set of items.

Abstract: Apparatus, method and storage medium for data query is disclosed. In the disclosure, the method is applied to a question-answering system including large language model. The question-answering system can store history query information to vector database, and store history query results corresponding to each history query information to scalar database. When receiving the current query request, the question-answering system may first match the current query request with the history query information. If the history query information contains target history query information matching the current query request, the query result of the current query request can be obtained based on the target history query result corresponding to the target history query information.

Abstract: A distributed data storage system comprises features for integration with application orchestrators such as Kubernetes, and includes a proprietary Container Storage Interface (CSI) driver. Features include setting snapshot scheduling and retention policies, and a “container data mover” that replicates data from a source to a distinct destination distributed data storage system. The migration may be configured one-to-one, one-to-many, unidirectional, and/or bi-directional. Metadata-based snapshots and metadata-based changed block tracking identify payload data to move from source to destination within application orchestrator frameworks at both ends. Payload data is migrated from source to destination using different techniques than those used for migrating metadata, e.g., kernel-to-kernel for copying payload data versus ordinary metadata writes. An illustrative barrier logic ensures that the migration follows a controlled progression of operations.

Abstract: Disclosed are a borate MWDC with a low dielectric constant and a preparation method thereof by cold sintering. The method for preparing a borate MWDC with a low dielectric constant by cold sintering, including: subjecting a boron source and a metal source to first mixing to obtain a first mixture; subjecting the first mixture to presintering to obtain a presintered material; subjecting the presintered material and a boron oxide solution to second mixing to obtain a second mixture; and subjecting the second mixture to cold sintering to obtain the borate MWDC with the low dielectric constant.

Abstract: Provided is a beam-column joint of a prefabricated self-centering RC (Reinforced Concrete) frame based on an SMA (Shape Memory Alloy) material, including an RC precast column, an RC precast beam, and self-centering energy dissipation dampers arranged, and a friction energy dissipation damper. The self-centering energy dissipation damper includes an SMA kernel, an upper restraint cover plate, a lower restraint cover plate, a column-end connection reinforcing plate and a beam-end connection reinforcing plate, and a set energy dissipation gap is reserved between the SMA kernel and the upper restraint cover plate. The friction energy dissipation damper includes an in-column embedded connecting plate and a beam-end embedded connecting plate.

Abstract: An online concierge system delivers items from retailers to customers. The online concierge predicts a range of times during which an order may be fulfilled for presentation to a user. The online concierge system uses a trained maximum time prediction model to determine a maximum time for order fulfillment based on an order. A trained minimum time prediction model determines a minimum time for order fulfillment from the order and the maximum time. The minimum time may account for one or more rules (e.g., a percentage of orders fulfilled before the minimum time, a desired rate of selection of a range including the minimum time). A range bounded by the maximum time and the minimum time is transmitted to a customer to enable the customer to select a time interval for order fulfillment.