Abstract: In a transaction method, transaction information is obtained. The transaction information includes a type identifier and quantity of first assets, and a type identifier and quantity of second assets. Transaction records, corresponding to a transaction in a block, are stored upon verification of the transaction information. The transaction records include first and second transaction records. The first transaction record includes first input and output items corresponding to the first assets, and the first input and output items each includes the type identifier of the first assets. The second transaction record includes second input and output items corresponding to the second assets, and the second input and output items each includes the type identifier of the second assets. The block is broadcasted to other nodes in the blockchain network, and verification results are received. The block is added to a blockchain of a current node based on the verification results.

Abstract: This application provide a data management method performed at a blockchain system. The system includes an accounting node sub-network and a service node sub-network. The method includes: generating a first data block in the accounting node sub-network; adding first key information to a block header of the first data block; adding signature corresponding to the first data block to the block header of the first data block; and releasing the block header of the first data block to the service node sub-network. The service node sub-network is configured to verify the signature comprised in the block header of the first data block, and obtain the first key information after a successful verification.

Abstract: The invention belongs to the technical field of permanent magnet materials, and relates to a preparation method of a samarium-cobalt permanent magnet with high mechanical properties, comprising the following steps: performing melting, pulverizing, orientation shaping, cold isostatic pressing, sintering, solution, aging and heat treatment sequentially on raw materials to obtain the samarium-cobalt permanent magnet. The number of heat treatment cycles ranges from 1 to 10, and an external magnetic field and an external stress are applied during one or multiple heat treatment cycles. The magnetic field intensity of the external magnetic field is 1-50 kOe, and the magnitude of the external 10 stress is 5-500 MPa. Compared to the traditional process, this method not only improves the magnetic properties, but also greatly enhances the mechanical properties of the samarium-cobalt magnet, achieving a synergistic improvement in the magnetic and mechanical properties.

Abstract: A film tearing device for tearing a protective film from a workpiece comprises a sucking component, a clamping component, and a drive component. The sucking component is configured for lifting a tongue of the protective film from the workpiece, and the tongue is separate from the workpiece. The clamping component is configured for clamping the tongue lifted by the sucking component. The drive component is configured for moving the sucking component and the clamping component. After the clamping component clamps the tongue, the drive component moves the clamping component and the tongue, to tear the protective film off from the workpiece. By lifting tongue from the workpiece in advance, it is helpful to reduce the probability of the clamping component and the workpiece coming into contact, thereby reducing the probability of the workpiece being scratched.

Abstract: Porous solid amine adsorbents are prepared by bringing into contact a first (e.g., dope) solution, including a water insoluble polymer and a water-soluble amine polymer, with an aqueous solution containing a multifunctional chemical agent. The first solution can be obtained by dissolving the water insoluble polymer and the water-soluble amine polymer in a polar solvent. The adsorbents can be in the form of beads, sheets, fibers, hollow fibers, etc. and can be used in the removal of acid gases, CO2, for instance, from fluid streams.

Abstract: An online matching and optimization method combining geometry and texture and a three-dimensional (3D) scanning system are provided. The method includes obtaining pairs of depth texture images with a one-to-one corresponding relationship, and collecting the pairs of the depth texture images including depth images by a depth sensor and collecting texture images by a camera device; adopting a strategy of coarse to fine to perform feature, matching on the depth texture images corresponding to a current frame and on the depth texture images corresponding to the target frames, to estimate a preliminary pose of the depth sensor in the 3D scanning system; combining a geometric constraint and a texture constraint to optimize the estimated preliminary pose, and obtaining a refined motion estimation between the frames.

Abstract: A method for electing a representative node device performed by a first node device in a blockchain system includes: broadcasting candidate addition transaction data in the blockchain system, the candidate addition transaction data carrying credential data, the credential data being received from a target server and indicating that a first node device meets a qualification requirement for a candidate node device; storing the candidate addition transaction data on a target blockchain of a blockchain system when a plurality of node devices in the blockchain system verify the candidate addition transaction data by consensus; and participating in an election of the representative node device according to the candidate addition transaction data stored on the target blockchain.

Abstract: Aspects of the disclosure are directed to a method for use on a blockchain network that includes an accounting node subnetwork having accounting nodes configured to record a data block onto a blockchain and a service node having service nodes configured to verify data blocks recorded by the accounting nodes onto the blockchain. The method can include generating a signature based on transaction information to be included in a data block to be added onto the blockchain by using a key specific to the accounting node. The method can further include adding the transaction information and the generated signature to the data block and adding the data block onto the blockchain, and transmitting the signature to the service nodes in the service node subnetwork, so that the service nodes perform signature verification on the signature based on the key specific to the accounting node.

Abstract: A method for preparing a MOF of formula K2(M1xM21-x)3(Cit)2, where Cit is fully dehydrogenated citrate anion, M1 and M2 are metal cations of Zn, Co, Cu, Mg, Ni, Ca, Mn, Cr, Zr, and Fe, includes reacting 1 molar equivalent of citric acid with 0 to 1.0 molar equivalent of metal carbonate and/or metal oxide and 1.5 to 0.5 molar equivalent of a basic potassium compound (e.g., potassium carbonate, potassium bicarbonate and/or potassium hydroxide), where a total molar equivalent of the metal carbonate and potassium carbonate is 1.5. This step is followed by reacting with a metal salt aqueous solution. The total molar equivalent of the metal carbonate and/or metal oxide and metal acetate is 1 to 1.5. The reaction steps are conducted in DI water at a temperature below 100° C. and at ambient pressure. The MOF can be used to adsorb an acid gas from a fluid stream.

Abstract: Embodiments of this disclosure disclose a resource transfer data management method and apparatus, and a storage medium, which belong to the field of Internet technologies. The method includes: receiving transaction data transmitted by a first server, wherein the transaction data is obtained by the first server by signing resource transfer data according to a private key of the first server; verifying the transaction data according to a public key of the first server; and generating a second block according to the transaction data and a feature value of a first block in a blockchain when the verification succeeds, and adding the second block as a next block of the first block to the blockchain.

Abstract: A preparation method of a rare earth permanent magnetic material comprises one or more times of cryogenic treatment and tempering treatment. When the preparation method comprises one time of cryogenic treatment and tempering treatment, the cryogenic treatment is performed between sintering treatment and the tempering treatment, or is performed after the tempering treatment. When the preparation method comprises two or more times of cryogenic treatment and tempering treatment, at least one time of cryogenic treatment is performed between sintering treatment and the tempering treatment, and at least one time of cryogenic treatment is performed after the tempering treatment. The preparation method can refine and homogenize the structure and realize quick and convenient treatment, and can effectively improve the mechanical performance of the rare earth permanent magnetic material and maintain good magnetic performance.

Abstract: A plant sterility-related gene is disclosed, in particular to a dominant male sterility-related gene from rice and application of an encoding protein thereof in creating a rice dominant male sterile line. The present invention provides a rice dominant male sterile gene SMS and application thereof. The rice dominant male sterility-related gene SMS may be used for creating a new dominant male sterile line, thereby strengthening use of the advantages of a rice hybrid. The TO generation of transgenic plant line with overexpression of the rice dominant male sterility related gene SMS shows pollen abortion or no pollen, which indicates that the transgenic plant overexpressing this gene can obtain a new sterile material. Creation of the dominant male sterile line can promote wide application of a recurrent selection breeding method, enrich the genetic diversity of a new breeding variety, and solve the problem of a single variety of the rice.

Abstract: Various embodiments include methods and devices for generating and verifying a software image with a safety feature. Embodiments may include generating a safety feature from a first software image, and generating a second software image including the safety feature. Embodiments may include, retrieving a first safety feature from a software image with the first safety feature, calculating a second safety feature based on information relating to the software image with the first safety feature, comparing the first safety feature and the second safety feature, and verifying safety of the software image with the first safety feature in response to the first safety feature matching with the second safety feature. The methods and devices may be implemented in compliance with functional safety standards, such as ISO 26262 functional safety standards and, in compliance with Automotive Safety Integrity Level (ASIL) requirements, such as ASIL-D and/or ASIL QM requirements.

Abstract: A reinforced porous adsorbent fiber includes a reinforcing thread partially or completely embedded in a fiber adsorbent component, the latter including an active adsorbent such as a polyamine, an inorganic particulate adsorbent or an amine-modified inorganic particulate adsorbent, dispersed in a porous polymeric matrix. In specific examples, the thread-reinforced adsorbent fibers have attractive CO2 adsorption/desorption performance, good tensile mechanical strength and/or flexibility.

Abstract: A method for electing a representative node device for a blockchain system includes: receiving IP address information of a first node device, the first node device being in a candidate state for a representative node device; receiving, from the first node device, an IP address obtaining request for requesting IP address information of a representative node device; when the first node device is determined to be a representative node device of the blockchain system elected in a current election process, transmitting, to the first node device, an IP address list comprising IP address information of representative node devices elected in the current election process; and when the first node device is determined not to be a representative node device of the blockchain system elected in the current election process, skipping the IP address obtaining request.

Abstract: Aspects of the disclosure are directed to a method for use on a blockchain network that includes an accounting node subnetwork having accounting nodes configured to record a data block onto a blockchain and a service node having service nodes configured to verify data blocks recorded by the accounting nodes onto the blockchain. The method can include generating a signature based on transaction information to be included in a data block to be added onto the blockchain by using a key specific to the accounting node. The method can further include adding the transaction information and the generated signature to the data block and adding the data block onto the blockchain, and transmitting the signature to the service nodes in the service node subnetwork, so that the service nodes perform signature verification on the signature based on the key specific to the accounting node.

Abstract: This application provide a data management method performed at a blockchain system. The system includes an accounting node sub-network and a service node sub-network. The method includes: generating a first data block in the accounting node sub-network; adding first key information to a block header of the first data block; adding signature corresponding to the first data block to the block header of the first data block; and releasing the block header of the first data block to the service node sub-network. The service node sub-network is configured to verify the signature comprised in the block header of the first data block, and obtain the first key information after a successful verification.

Abstract: The present disclosure relates to the field of biotechnology, and in particular to an application of inhibitors targeting CD226 molecules in anti-tumor metastasis. In view of the important role of platelets in mediating tumor metastasis, the present disclosure develops small-molecule inhibitors with blocking effects by targeting CD226 molecules, an important target. It can destroy the interaction between platelets and tumor cells, and inhibit the metastasis of tumor cells, and it is important for research and development of new methods to control tumor metastasis.