Abstract: The invention discloses a system and a method for detecting a full-length fluctuation state of a scraper conveyor in a fully-mechanized coal mining working face. The detection system consists of a proximity switch trigger module of the hydraulic support base, a displacement detection module of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor, a calculation module for the fluctuation angle of the middle groove of the single-section scraper conveyor and a full-length fluctuation state output module of the scraper conveyor.

Abstract: Provided is an anti-TIGIT antibody or an antigen-binding fragment thereof. The antibody or the antigen-binding fragment thereof has a higher affinity for TIGIT, has functional characteristics in a plurality of aspects, and may be used alone or in combination with other reagents for treating cancers, and diseases related to immunity and inflammation.

Abstract: Embodiments of the present specification provide methods and apparatuses for generating two-dimensional codes. One method comprising: receiving, by a secure element chip comprised in a two-dimensional code display device, code information comprising an account identifier of an account associated with the two-dimensional code display device; in response to obtaining a digital certificate for a private key stored in the secure element chip, signing, by the security element chip, the code information by using the private key to generate signed code information; and providing, the signed code information to the two-dimensional code display device for the two-dimensional code display device to generate and display a two-dimensional code based on the code information, wherein the two-dimensional code comprises information associated with the account identifier and changes dynamically over time.

Abstract: The invention discloses a system and a method for detecting a full-length fluctuation state of a scraper conveyor in a fully-mechanized coal mining working face. The detection system consists of a proximity switch trigger module of the hydraulic support base, a displacement detection module of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor, a calculation module for the fluctuation angle of the middle groove of the single-section scraper conveyor and a full-length fluctuation state output module of the scraper conveyor.

Abstract: An event processing request including an event processing parameter is received from an event initiator. When verification performed on the event processing parameter based on a first smart contract is passed, parsing the event processing parameter based on the first smart contract, determining an event participant, invoking a second smart contract, and determining a current remaining resource of the event participant. When the current remaining resource of the event participant satisfies an event processing condition, invoking the second smart contract based on the first smart contract, and freezing an event resource needed for processing the event processing request in the current remaining resource of the event participant. When a confirmation instruction of the event participant for the event processing parameter of the event processing request is received, invoking the second smart contract based on the first smart contract, deducting the event resource, and completing the event processing request.

Abstract: Implementations of the present specification describe a computer-implemented method, medium, and system. In one computer-implemented method, a contract creating request from a requesting user is received by a blockchain node of a blockchain network, where the contract creating request includes creation information of a target electronic contract to be created. A first smart contract is deployed for managing the target electronic contract in a blockchain based on the creation information. The target electronic contract is created according to the creation information and based on the first smart contract. In response to receiving a contract signing request from a signatory user of the target electronic contract, the target electronic contract is signed based on the first smart contract and a second smart contract corresponding to the signatory user, where the second smart contract is a pre-deployed smart contract for managing information associated with the signatory user.

Abstract: A nanometer niobium carbide/carbon nanotube reinforced diamond composite and a preparation method thereof, belonging to the field of materials science. The nanometer niobium carbide/carbon nanotube reinforced diamond composite is composed of nanometer niobium carbide/carbon nanotube composite powders, matrix powders and diamond grains, wherein the nanometer niobium carbide/carbon nanotube composite powders are the composites of nanometer niobium carbide which are evenly distributed in the surface defects and interior of the carbon nanotube, the nanometer niobium carbide/carbon nanotube reinforced diamond composite is prepared by mixing the nanometer niobium carbide/carbon nanotube composite powders, matrix powders and diamond grains uniformly and sintering with a hot pressing technique.

Abstract: A data processing method, apparatus, and device is provided. The method includes receiving, by a blockchain node, a data processing request sent by a first device associated with a first user, invoking a first smart contract deployed in a blockchain network, and extracting a feature value of first original data to be processed included in the data processing request based on the first smart contract; matching historical data saved in the blockchain network based on the extracted feature value so as to determine whether there is target historical data whose similarity with the first original data satisfies a predetermined condition in the historical data; and performing corresponding processing based on matching result information of the matching processing.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based storage of patrol inspection proof are provided. One of the methods includes: receiving proof information of patrol inspection at a patrol inspection site; obtaining one or more operating environment parameters of the mobile terminal at a time of the patrol inspection, wherein the one or more operating environment parameters comprise at least location information and sensor data of the mobile terminal; performing credibility verification on the patrol inspection site based on the proof information, the location information, and the sensor data using an algorithm model based on labeled identification information, labeled operating environment parameters, and historical attendance information; and in response to the credibility verification being successful, uploading verification information associated with the proof information for storing in a blockchain.

Abstract: A blockchain-based infringement detection method includes: receiving a registration transaction initiated by a user, wherein the registration transaction includes key data of a work to be deposited and a contract address of a smart contract; invoking, in response to the registration transaction, a first detection logic declared in the smart contract corresponding to the contract address, extracting a feature value from work content of the work to be deposited, and matching the extracted feature value with a feature value of a deposited work in the blockchain; if the matching succeeds, further invoking a second detection logic declared in the smart contract corresponding to the contract address, matching the key data of the work to be deposited with key data of the deposited work in the blockchain, and when the matching succeeds, determining that the work to be deposited has an infringement risk.

Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for multimedia playback. One of the methods includes: receiving, by a multimedia playback device from a multimedia server, a list indicating a plurality of multimedia files; caching, by the multimedia playback device, the plurality of multimedia files in a cache storage of the multimedia playback device; requesting, by the multimedia playback device from the multimedia server, an indication of a primary multimedia file to be played by the multimedia playback device; determining, by the multimedia playback device, a secondary multimedia file from the plurality of multimedia files to be played by the multimedia playback device; and playing, by the multimedia playback device, the secondary multimedia file when a playback condition of playing the secondary multimedia file is satisfied.

Abstract: A blockchain-based infringement detection method includes: receiving a registration transaction initiated by a user, wherein the registration transaction includes key data of a work to be deposited and a contract address of a smart contract; invoking, in response to the registration transaction, a first detection logic declared in the smart contract corresponding to the contract address, extracting a feature value from work content of the work to be deposited, and matching the extracted feature value with a feature value of a deposited work in the blockchain; if the matching succeeds, further invoking a second detection logic declared in the smart contract corresponding to the contract address, matching the key data of the work to be deposited with key data of the deposited work in the blockchain, and when the matching succeeds, determining that the work to be deposited has an infringement risk.

Abstract: Embodiments of the present specification provide methods and apparatuses for generating two-dimensional codes. One method comprising: receiving, by a secure element chip comprised in a two-dimensional code display device, code information comprising an account identifier of an account associated with the two-dimensional code display device; in response to obtaining a digital certificate for a private key stored in the secure element chip, signing, by the security element chip, the code information by using the private key to generate signed code information; and providing, the signed code information to the two-dimensional code display device for the two-dimensional code display device to generate and display a two-dimensional code based on the code information, wherein the two-dimensional code comprises information associated with the account identifier and changes dynamically over time.

Abstract: The embodiments of the present disclosure disclose a method for initiating and terminating a scan of a wireless device, and a wireless device. A sequence of time-of-initiation including a specified number of historical initiation time points is provided. The method comprises: receiving a scan OFF instruction from a requester; calculating a time difference between a current time point and an earliest historical initiation time point in the sequence of time-of-initiation, and comparing the time difference with the specified period to determine whether to terminate a current scan, in response to the scan OFF instruction; and continuing with the current scan until a target time point, and terminating the current scan at the target time point, if it is determined not to terminate the current scan. The technical solutions provided in the embodiments can improve speed of response of the wireless device to the scan ON and OFF instructions.

Abstract: The present application discloses resource selection and resource transfer methods and apparatuses, and automatic vending methods and systems. The method includes the following: obtaining, by a mobile device placed within a predetermined range of a resource management terminal, data comprising changes in magnetic field intensity of the resource management terminal; determining, by the mobile device and based on the data comprising changes in the magnetic field intensity, a first target channel from a plurality of channels in a rack of the resource management terminal; and sending, by the mobile device and to the resource management terminal, a target resource selection instruction, wherein the target resource selection instruction comprises information that specifies the first target channel.

Abstract: A data processing method, apparatus, and device is provided. The method includes receiving, by a blockchain node, a data processing request sent by a first device associated with a first user, invoking a first smart contract deployed in a blockchain network, and extracting a feature value of first original data to be processed included in the data processing request based on the first smart contract; matching historical data saved in the blockchain network based on the extracted feature value so as to determine whether there is target historical data whose similarity with the first original data satisfies a predetermined condition in the historical data; and performing corresponding processing based on matching result information of the matching processing.

Abstract: Implementations of the present specification describe a computer-implemented method, medium, and system. In one computer-implemented method, a contract creating request from a requesting user is received by a blockchain node of a blockchain network, where the contract creating request includes creation information of a target electronic contract to be created. A first smart contract is deployed for managing the target electronic contract in a blockchain based on the creation information. The target electronic contract is created according to the creation information and based on the first smart contract. In response to receiving a contract signing request from a signatory user of the target electronic contract, the target electronic contract is signed based on the first smart contract and a second smart contract corresponding to the signatory user, where the second smart contract is a pre-deployed smart contract for managing information associated with the signatory user.

Abstract: Embodiments of the present specification provide methods and apparatuses for generating two-dimensional codes. One method comprising: receiving, by a secure element chip comprised in a two-dimensional code display device, code information comprising an account identifier of an account associated with the two-dimensional code display device; in response to obtaining a digital certificate for a private key stored in the secure element chip, signing, by the security element chip, the code information by using the private key to generate signed code information; and providing, the signed code information to the two-dimensional code display device for the two-dimensional code display device to generate and display a two-dimensional code based on the code information, wherein the two-dimensional code comprises information associated with the account identifier and changes dynamically over time.

Abstract: The present application discloses active/inactive state detection methods, where the method is performed by a monitoring and detecting system, and includes the following: monitoring a distance between an object and a target object within a distance detection range; when the distance between the object and the target object satisfies a first predetermined condition, sending a first instruction to an image acquisition system corresponding to the distance detection range, so as to activate the image acquisition system to obtain an image in an image acquisition area of the image acquisition system; and determining a state of the target object based on a recognition result obtained by performing object recognition on the image in the image acquisition area, where the state of the target object includes an active state and/or an inactive state.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based storage of patrol inspection proof are provided. One of the methods includes: receiving proof information of patrol inspection at a patrol inspection site; obtaining one or more operating environment parameters of the mobile terminal at a time of the patrol inspection, wherein the one or more operating environment parameters comprise at least location information and sensor data of the mobile terminal; performing credibility verification on the patrol inspection site based on the proof information, the location information, and the sensor data using an algorithm model based on labeled identification information, labeled operating environment parameters, and historical attendance information; and in response to the credibility verification being successful, uploading verification information associated with the proof information for storing in a blockchain.