摘要：
The invention relates to the technical field of fiber lasers, and particularly to a high-energy ultrashort-pulse fiber laser. The high-energy ultrashort-pulse fiber laser comprises a first fixing plate, and three U-shaped connecting blocks which are arranged in an annular array are arranged on the outer wall of the circumference of the first fixing plate; each U-shaped connecting block is hinged with a supporting device; and a fastening device is arranged on the surface of the first fixing plate and comprises a first U-shaped fixing block, a second U-shaped fixing block is movably connected tothe inner wall of the first U-shaped fixing block, a U-shaped supporting block is arranged in the middle of the opening face of the first U-shaped fixing block, and a pre-tightening bolt is movably connected to the middle of the top of the U-shaped supporting block. According to the high-energy ultra-short pulse fiber laser, the height of the isolator output head can be adjusted through the arranged supporting device so as to adapt to different application environments, the position of the isolator output head can be fixed through the arranged fastening device, the isolator output head is prevented from deviating in the working process, and then accidents are avoided.
摘要：
The invention belongs to the technical field of data information verification. The invention discloses a blockchain identity information confirmation system and confirmation method based on big data.The blockchain identity information confirmation system based on big data comprises a registration login module, a blockchain storage module, an information encryption module, an identity informationacquisition module, an information decryption module, an information identification module, an information confirmation module, an information management module, an abnormality early warning module and a display module. According to the method, the stored identity information is verified in an identity information identification and confirmation mode, so that the integrity of data information in the blockchain node can be ensured, the blockchain node is prevented from being attacked by a network, and the occurrence of great property loss is avoided. The encryption and decryption methods can ensure that the generated information is not tampered, the economic burden of identity confirmation can be reduced, and the efficiency and the security are greatly improved. Batch processing is performed on the to-be-acquired data according to the data storage index data, so that rapid acquisition of operator data can be realized.
摘要：
The invention belongs to the technical field of network security protection, and discloses a big data computer network security protection device and a control method thereof. The big data computer network security protection device comprises a network vulnerability detection module, a network intrusion detection module, a network virus detection module, a main control module, a network security protection module, a network data encryption module, an access permission control module, a big data processing module, an alarm module and a display module. According to the invention, the collected network data can be effectively prevented from being illegally tampered, and the safety performance is high; the access permission information is not written into the resource database through the access permission control module, so that the storage cost is saved; the user access address can be generated by the application module according to the actual function requirement, and once the application function requirement changes, the application module can automatically regenerate the user access address without notifying the resource storage system, so that the coupling degree between the application module and the resource storage system is effectively reduced.
摘要：
The invention belongs to the technical field of management, and discloses a policy information service system and method based on big data analysis, a data mining module is used for obtaining a latestpolicy file and related information; a data processing module is used for carrying out data preprocessing; a data extraction module is used for carrying out multi-dimensional analysis on the data; adata classification module is used for classifying and summarizing policies; a storage module is used for storing the acquired related policy files; a data updating module is used for updating policyinformation in real time; a query module is used for querying related policies; a feedback module performs policy feedback; the statistical module is used for generating a statistical report; and a customized reminding module is used for carrying out customized reminding of related policies. According to the invention, the acquired original data is preprocessed and analyzed, so that the accuracy and reliability of the data are improved, the precise analysis of policies is realized, and the value utilization rate of policy information is improved.
