3results about How to "Achieve delete" patented technology

The application relates to a multi-node dual-path serial high-availability cluster system and a management method, and belongs to the cluster design field. The application flexibly realizes the increase and deletion of the master and standby nodes of the serial multi-node cluster by establishing a communication route configuration on the nodes, and meets the demand of different flow service on different node numbers. The application realizes the rapid propagation of the fault information in the cluster through a longitudinal and transverse double notification mechanism of the fault information, and ensures the master and standby switching performance of the whole serial cluster when the node is faulty. The application adopts a time-sharing dual-redundancy heartbeat mechanism, avoids the brain split problem of the cluster system, considers the heartbeat monitoring performance and the occupation of the system resources, and guarantees the stable and reliable operation of the cluster system. Compared with the prior art, the technical method provided by the application provides a high-availability cluster system and a management method suitable for serial flow service, provides three different node intercommunication modes for selection, and flexibly configures the node number.

The application belongs to the technical field of digital agriculture, and particularly relates to a blockchain traceability data management platform for digital agriculture, wherein the system comprises an agricultural product supply chain informatization module, a trust value quantification module, a two-dimensional code generation module, a local two-dimensional anti-fraud verification module and a traceability query module. The scheme constructs a distributed blockchain ledger network suitable for the agricultural product supply chain, allocates unique on-chain identity and permission to each link participant, generates a basic two-dimensional code bearing core data through a two-dimensional code generation library, triggers a smart contract to calculate a trust value in real time and uploads the trust value to the chain during traceability query, calculates a local hash value by extracting an on-chain identity embedded in a two-dimensional code to be detected, and compares the local hash value with a preset authorization list to complete legality verification, realizes real-time two-dimensional anti-fraud verification of the two-dimensional code without network dependence, can accurately trace and immediately intercept a counterfeit behavior, and provides a full-process anti-counterfeiting and traceable trust guarantee for agricultural product traceability.

The present application relates to nucleic acid compositions targeting the homologous region of the human chromosome 7q11.23 region, a method for constructing a Williams syndrome animal model and applications. The nucleic acid compositions include a first composition and a second composition, the first composition includes a first sgRNA and a second sgRNA, the nucleotide sequences of which are shown in SEQ ID NO: 1 and SEQ ID NO: 2 respectively, and the second composition includes a third sgRNA and a fourth sgRNA, the nucleotide sequences of which are shown in SEQ ID NO: 3 and SEQ ID NO: 4 respectively. By targeting the specific nucleic acid composition of the homologous region of the human chromosome 7q11.23 region, the complete genomic fragment of the Gtf2i gene and the Trim50 gene interval can be deleted at one time, and the synchronous deletion of multiple genes in the region is realized.