28results about How to "Verify security" patented technology

The invention discloses an unmanned aerial vehicle group distributed management method based on a mobile active secret sharing technology, which supports off-line of a trusted institution and comprises the following steps: the trusted institution TA generates public parameters; a mobile base station MS and an unmanned aerial vehicle UAV participating in communication respectively register with a trusted mechanism in a registration stage, and acquire information such as a secret key and a certificate; the UAV joins the MS and is administered by the MS, and after mutual identity authentication, the MS distributes secret shares to the UAV; performing identity authentication on the unmanned aerial vehicle group; the unmanned aerial vehicles of the two groups share the share, group fusion is achieved, and after a new share is obtained, each unmanned aerial vehicle updates the certificate of the unmanned aerial vehicle. According to the method, the sub-secrets of the unmanned aerial vehicles are autonomously updated through a mobile active secret sharing technology, and fusion of completely decentralized unmanned aerial vehicle groups is realized. Secondly, an efficient certificate self-updating method is designed. The unmanned aerial vehicle can update the certificate only by calculating a threshold signature. Detailed safety certification and comprehensive experiments show that dynamic autonomous management of the distributed unmanned aerial vehicle group can be realized, and the method has good safety characteristics and relatively low calculation overhead.

The invention discloses an overvoltage breakdown test system and method for a converter valve power module, and belongs to the technical field of direct current transmission, and the system comprises an auxiliary control unit and a capacitor energy storage unit which are connected in series, and a series branch where the auxiliary control unit and the capacitor energy storage unit are located is connected in parallel with a follow current branch. The two parallel ends are respectively connected to one end of the current limiting branch and the negative polarity end of the first charging power supply, and the other end of the current limiting branch is connected to the positive polarity end of the first charging power supply; the positive polarity end of the first charging power supply is further connected to a first output terminal Y1 of the sample power module through the change-over switch Ks, and the negative polarity end of the first charging power supply is further connected to a second output terminal Y2 of the sample power module. The device can be used for realizing overvoltage breakdown of the converter valve power module and surge short-circuit discharge of the capacitor, verifying the anti-explosion capability of the converter valve power module, and providing a verification means for the anti-explosion design of the power module.

The present invention discloses a dual-branch generative adversarial watermark attack algorithm, which relates to the field of image processing technology and is characterized in that it comprises the following steps: S1: constructing a precise two-branch generative adversarial network architecture, including a detail-preserving generative adversarial network and a watermark attack generative adversarial network; S2: image difference analysis: using a precise two-branch generative adversarial network architecture to perform pixel-by-pixel difference operations between the original image and the watermarked image to extract image details and watermark information, and outputting two independent channels, namely, an image detail map and a watermark information map; S3: generating a detail-preserving image. The present invention can effectively counter existing watermarking technologies while maintaining image quality, provides a new tool for watermark security assessment, and promotes the advancement of watermarking technology.

The present disclosure provides a remote attestation method, device, electronic device and storage medium. The method is applied to a first trusted execution environment, and includes: obtaining a first file for a first application, the first file is used to deploy the first application in the first trusted execution environment, and the first file includes a read-only target file system; obtaining a first measurement value for the target file system; loading the first file, writing the first measurement value into a command line for starting a kernel, starting the kernel in the first file based on the command line, so as to deploy the first application in the first trusted execution environment; measuring the kernel and other components to obtain a second measurement value, so as to remotely attest the first application based on the second measurement value.

The invention provides a bionic 3D printing degradable magnesium alloy interbody fusion cage and a preparation method thereof, the bionic 3D printing degradable magnesium alloy interbody fusion cage comprises a porous frame and a through hole net rack, the porous frame is constructed by supporting rods with the diameter of about 0.4 mm, the porous frame is of a compact rhombic hole structure, the aperture is about 200-400 microns, the pore coverage rate is about 50%-80%, and a horseshoe-shaped columnar space is defined; the through-hole net rack is formed by building supporting rods with the diameter of 0.2-0.1 mm, the hole diameter is about 300-800 microns, the hole coverage rate is about 90%, a dome structure is formed in the center, and the through-hole net rack is arranged in the middle of the porous frame. The magnesium-strontium alloy is adopted as a base material of the interbody fusion cage, the interbody fusion cage is integrally formed through the 3D printing technology, and the degradable characteristic and good biocompatibility of the magnesium alloy are fully utilized. The elasticity modulus of the magnesium alloy is closer to that of the human bone tissue, physiological loads can be better shared and transmitted, the stress shielding effect is reduced, and growth and fusion of the bone tissue are promoted.

The invention relates to the technical field of automobile collision test, and particularly provides a vehicle collision test system and test method. The vehicle collision test system comprises a collision test trolley and a collision test device used for bearing collision of the collision test trolley. The collision test device comprises a base, and a full front collision buffer unit and a front offset collision buffer unit which are alternately arranged on the base, the collision test trolley comprises a front frame, a middle frame and a rear frame which are respectively constructed and sequentially assembled and connected, and the middle frame bears a body-in-white body of a vehicle type to be subjected to collision test; the full front collision buffering unit comprises a plurality of first damping mechanisms arranged on the base at intervals, and the front offset collision buffering unit comprises a second damping mechanism arranged on the left half portion or the right half portion of the base. According to the vehicle collision test system, the collision test trolley can replace a real vehicle to carry out a collision test, and posture change and waveform conditions in the vehicle collision process can be well reproduced.

The present application relates to the technical field of biological medicine, and discloses inhalable aptamer modified molybdenum disulfide nanoflower compound and application thereof.The compound comprises a molybdenum disulfide nanoflower core, a dendritic polylysine modification layer attached to the surface of the molybdenum disulfide nanoflower, doxorubicin loaded on the molybdenum disulfide nanoflower and / or the dendritic polylysine modification layer, and AS1411 aptamer combined on the outer surface of the dendritic polylysine modification layer by electrostatic assembly.The compound can be delivered to a lung lesion by atomization inhalation or aerosol inhalation, and undergoes responsive structural change under the action of hydrogen peroxide in a tumor microenvironment, generates active oxygen, and promotes the release of doxorubicin, so as to realize the synergistic antitumor effect of chemotherapy and chemical dynamic therapy.The compound has good colloidal stability, drug loading capacity, active targeting ability and lung local delivery potential, and can be used for preparing inhalation preparations or local administration preparations for treating lung cancer.

The invention discloses a preparation method of a preservative film containing rosemary essential oil, which comprises the following steps: step 1, extraction and purification of rosemary essential oil, step 2, microencapsulation of rosemary essential oil, step 3, preparation and optimization of a spinning solution, step 4, preparation of a nanofiber preservative film by electrostatic spinning, and step 5, performance detection and application evaluation. According to the preparation method, through extraction and purification of rosemary essential oil and microencapsulation, ethylene removal, antibiosis and antioxidation are achieved, the shelf life of food is effectively prolonged, freshness and nutritional value are kept, low-cost and high-environmental-protection materials are adopted, the production cost is reduced, environmental pollution is reduced, the preparation process is simple and efficient, the production efficiency is improved, and the method is suitable for industrial production. And meanwhile, through strict detection, it is ensured that the product is safe and reliable.

The application provides an information association method and device, electronic equipment and storage medium, relates to the technical field of communication, and solves the technical problem that in the related art, other users cannot guarantee the security of service data based on the terminal corresponding to a user accessing related services. The method comprises the following steps: receiving an information association request sent by a terminal; in the case that the secret card identifier of the first secret card is the same as the secret card identifier included in the opening information of the first account, and the first field included in the opening information of the first account is empty, sending a first verification code to the terminal, the first field being used to represent the terminal identifier corresponding to the account identifier of the first account; in the case that the first verification code sent by the terminal is received, determining the terminal identifier of the terminal as the terminal identifier corresponding to the account identifier of the first account, and determining the secret card identifier of the first secret card as the secret card identifier corresponding to the account identifier of the first account.

The invention discloses a traditional Chinese medicine composition for treating sicca syndrome as well as a preparation method and application of the traditional Chinese medicine composition. The traditional Chinese medicine composition comprises the following raw material medicines in parts by weight: 5-90 parts of dendrobium, 5-90 parts of radix ophiopogonis, 5-90 parts of radix scrophulariae, 5-90 parts of oldenlandia diffusa, 5-90 parts of radix polygonati officinalis, 5-90 parts of phyllanthus emblica, 5-90 parts of Chinese olive, 5-90 parts of changium smyrnioides, 5-90 parts of ginseng leaves and 5-90 parts of salvia miltiorrhiza. The invention provides a traditional Chinese medicine composition for treating sicca syndrome, which mainly has the effects of tonifying yin, promoting salivation, clearing away heat and toxic materials. The safety and effectiveness of the traditional Chinese medicine composition for treating sicca syndrome are verified by clinical research.

A data security verification method based on Openreset verification parameters comprises the steps that parameters needing to be verified are registered and integrated, and a registration verification parameter set is constructed; issuing the API information, and generating a parameter verification rule according to a preset rule; data information to be transmitted is preprocessed and encrypted; performing centralized processing on the to-be-transmitted data information to generate a to-be-transmitted data abstract; encrypting the transmission data abstract to generate a verification parameter; according to the method, unified management is carried out on APIs of services in all business fields, interception verification is carried out according to configuration verification parameter data security rules, the verification rules can be changed in real time and take effect in time, and the method has the advantages that the verification efficiency is improved, and the service safety is improved. And the data security is enhanced while the verification accuracy is improved, and the method is flexible and efficient.

The invention discloses a control system and method of an intelligent terminal device, and relates to the technical field of terminal device management, normalization processing is performed on operation records of operation data items in a unit time range, feature operation data items of a target device in any operation mode are obtained according to curve features, and the operation data items are stored in a database. Collecting feature operation data items of the target equipment in all operation modes, the reference function and the weight coefficient to form a feature database, and when the target equipment fails to pass safety detection, obtaining the feature operation data items corresponding to the operation modes from an operation mode comparison library as target operation data items, and sending instruction information comprising an operation record for requesting the target operation data item to the target equipment, submitting the operation record of the target operation data item in the current use process after the target equipment receives the instruction information, and comparing the operation record with the reference function.

The invention provides a matching test method for different types of photovoltaic module connectors, which belongs to the technical field of photovoltaic module manufacturing, and is characterized in that different types of positive and negative electrode connectors are randomly matched, and an accelerated aging test, a temperature shock test, a temperature rise test, a composite illumination test and a saline corrosion test are sequentially carried out in a simulated environment. Contact resistance measurement and wet leakage current test are carried out on each connector, and contact resistance values and insulation resistance values are recorded one by one; a contact resistance value obtained by testing is compared with an initial resistance value, an insulation resistance value of the connector after testing is obtained, and whether a product is qualified or not is judged through comparison, so that the matching performance and the safety performance of mixed insertion of connectors of different models can be effectively verified, unqualified products are removed in time, the unqualified products are prevented from being applied to a photovoltaic power station, and the quality of the photovoltaic power station is improved. And safety guarantee is provided for operation of the photovoltaic power station.

The invention discloses a preparation method of glycosylated bamboo shoot peptide chelated calcium. Combining the bamboo shoot cleaning solution with the filtrate, carrying out alkali dissolution and acid precipitation, collecting precipitates, dispersing the precipitates in ultrapure water, and carrying out spray drying to obtain bamboo shoot protein powder; taking the bamboo shoot protein, adding alkaline protease, carrying out enzymolysis reaction, and carrying out ultrafiltration and freeze drying; the preparation method comprises the following steps: mixing BSH with six different saccharides, and dissolving in deionized water to prepare a solution; preparing BSH with similar grafting degrees and same time; cooling, filtering, and freeze-drying trapped fluid to obtain a BSH sample; mixing the glycosylated BSH solution with calcium chloride, and adding absolute ethyl alcohol to obtain glycosylated BSH-Capowder; the calcium binding capacity of the bamboo shoot peptide is effectively improved, an experimental basis is provided for development of BSH-Ca and XY-BSH-Ca as calcium supplements and functional peptide additives, the high-value utilization approach of bamboo shoot resources is expanded, and a new thought is provided for research and development of novel efficient calcium supplements.

The invention relates to the technical field of medical management, in particular to a vascular access outpatient service intelligent management system based on artificial intelligence. The system comprises a patient outpatient service information file integration module, a patient vascular access use risk optimization selection module, a patient vascular access quality abnormity early warning module and a vascular access abnormity feedback management module. The method comprises the following steps: acquiring basic information data of a patient and previous vascular access use record data, performing information file integration processing, performing vascular access suggestion design and access use risk optimization selection, and generating a patient outpatient service optimal selection to establish a vascular access; and monitoring the physiological data of the patient and the use condition data of the vascular access of the patient in real time by using intelligent equipment, performing intelligent abnormal early warning of the vascular access and abnormal feedback management of the vascular access, and generating an abnormal feedback management scheme of the vascular access of the patient so as to execute corresponding abnormal feedback management work of the vascular access of the patient. The efficiency and accuracy of vascular access management can be improved.

The invention relates to the technical field of automatic driving test, and discloses an automatic driving vehicle open road test route planning method comprising the following steps: 1, collecting target historical data; 2, constructing a traffic flow characteristic prediction AI model based on deep learning and a test road risk level prediction AI model based on deep learning; 3, taking the road characteristics and future traffic flow characteristics output by the traffic flow characteristic prediction AI model as input, and outputting future test road risk levels of the roads in the urban road network by the test road risk level prediction AI model; and step 4, based on the future test road risk level, according to the test demand index, screening out target test roads, and combining the target test roads to obtain a test route planning scheme. According to the invention, a test route planning scheme meeting requirements can be provided for the open road test of the automatic driving vehicle, the test efficiency can be improved, and the test effect can be optimized.

The application relates to the technical field of information security, in particular to a method for encrypting and transmitting information, which comprises the following steps: providing initial information to be encrypted, randomly generating an initial key, adding padding bytes to the initial information to be encrypted through a padding method to obtain padding plaintext, and performing first encryption on the padding plaintext through a symmetric encryption algorithm to obtain first encryption ciphertext; determining the encryption times of second encryption and the encryption method of second encryption according to the initial key, and performing second encryption on the first encryption ciphertext to obtain second encryption ciphertext; performing verification calculation on the second encryption ciphertext to obtain verification information, and inserting the verification information into the second encryption ciphertext in segments according to the key to obtain third encryption ciphertext; and transmitting the third encryption ciphertext. The method for encrypting and transmitting information provided by the application improves the security of information in the transmission process.

The invention discloses a method for analyzing the curative effect, safety and action mechanism of a nanoneedle on knee osteoarthritis and application of the nanoneedle. The invention develops a research scheme for the curative effect, safety, action mechanism and the like of the nanoneedle in the knee osteoarthritis model, and specifically comprises (1) selection of an animal model and a control group, design of a treatment scheme and the like, and (2) subjective and objective curative effect verification indexes combined with qualitative and quantitative, such as behavioristics, pathological sections, inflammatory factors and the like. And (3) a mechanism research method based on scientific hypothesis and unbiased multi-omics analysis are combined, an existing onset mechanism is verified, a new path is found, the curative effect, the safety and the action mechanism of the nanoneedle on knee osteoarthritis can be scientifically and systematically analyzed, and popularization and application of the nanoneedle are facilitated.

The invention belongs to the field of power systems and automation thereof, and provides a power grid dispatching automatic control software quality control method, system and device and a medium, and the method comprises the steps: obtaining software verification resource data, power grid resource data and version information; respectively carrying out software quality verification, power grid simulation verification and version consistency verification on the obtained software verification resource data, power grid resource data and version information to obtain verification results; and uploading the verification result to a preset evaluation unit, and outputting a quality control measure according to an evaluation result. According to the power grid dispatching automatic control software quality control and evaluation system provided by the invention, the quality control and evaluation of the whole process from research and development to operation of the automatic control software are realized by integrating a plurality of modules such as quality verification and evaluation, version control, qualification authentication and the like.

The invention particularly relates to a sodium-cooled fast reactor core power measurement method, which comprises the following steps of: replacing a component at a reactor core power measurement position with a test component loaded with a group of detection foils, and carrying out a reactor entry irradiation test on the test component to obtain the power at the reactor core power measurement position; calculating the reactor core power according to the power of the reactor core power measurement position; and taking the average power value of each reactor core power measurement position as the reactor core power. According to the invention, the reactor core power measurement during the low-power period of the sodium-cooled fast reactor is realized.

The performance verification system of the liquid carrier rocket self-destruction device comprises a solid rocket, a simulation storage box, a solid rocket fixing tool, a simulation storage box fixing tool and a power supply device, and the solid rocket fixing tool and the simulation storage box fixing tool are both fixed to the ground; the simulation storage tank is vertically fixed on the simulation storage tank fixing tool; the solid rocket is arranged on the outer side of the simulation storage tank, and the solid rocket is fixed on the solid rocket fixing tool and placed in the direction perpendicular to the simulation storage tank. The verification system meets rocket safety control requirements, and is low in cost, safe and effective.

The present disclosure provides a robot control method, device, electronic device and computer-readable storage medium. The method includes: receiving first image data and state data sent by the robot; generating a first control strategy corresponding to the first image data and state data; simulating the first control strategy to obtain a first simulation result; when the first simulation result is reaching the destination, sending the first control strategy to the robot so that the robot executes the first control strategy. By simulating the first control strategy, the feasibility and safety of the first control strategy can be verified, thereby avoiding sending an infeasible or unsafe control strategy to the robot for execution. When the simulation passes, the feasible and safe first control is sent to the robot and executed by the robot, which can reduce the possibility of safety incidents such as collision when the controlled robot executes the first control strategy, and improve the safety of controlling the robot when moving.

The present invention discloses a medical data hierarchical access control and sharing method with on-chain and off-chain collaboration, including the following five functional modules: attribute authorization center, data owner, data user, interstellar file system, main-side chain module; the workflow is divided into 4 stages: initialization stage, ciphertext storage stage, on-chain stage and access stage. The method described in the present invention realizes fine-grained access control and hierarchical attribute encryption in the process of medical data sharing; hierarchical attribute encryption at three levels of high sensitivity, medium sensitivity and low sensitivity is implemented according to the sensitivity of medical data, and a data storage method combining on-chain and off-chain is adopted to solve the blockchain storage problem, and the main-side chain is divided into one main and three sides according to the data sensitivity to store the corresponding ciphertext address and symmetric key, and the multiplication homomorphic RSA cryptographic system is used to ensure the attribute privacy during the authorization verification period, and the P-TL smart contract is used on the side chain to verify the timeliness and correctness of the entire transaction.

This invention discloses a CH@SHP099-NPs composite hydrogel, its preparation method, and its applications, belonging to the field of biomedical technology. Addressing the technical challenge of achieving long-term, safe, and precise metabolic intervention with SHP2, this invention constructs a hydrogel system composed of chondroitin sulfate and hyaluronic acid. This system can retain SHP099-loaded nanoparticles within the joint cavity, forming a long-acting intrasynovial drug library, thereby continuously inhibiting the SHP2-AMPK signaling axis. The CH@SHP099-NPs composite hydrogel prepared in this invention can effectively reprogram the metabolic state of macrophages, reduce glycolysis flux, restore synovial immune metabolic homeostasis, and significantly improve synovial inflammation, chondrocyte activity, and cartilage structural integrity in vivo. This invention proposes a mechanism-guided local delivery metabolic intervention strategy, which is expected to provide a new interventional approach for the treatment of osteoarthritis.

The invention discloses an encryption method and system for protecting a TSIG key of a DNS, and the method comprises the steps: generating a random key and a random initialization vector IV through employing openssl, and carrying out the encryption of the TSIG key through employing the random key and the IV; generating an encrypted TSIG key character string, and splicing the encrypted key character string with the random key and the IV to form a target key character string; configuring the target key character string in a configuration file of a DNS server, and loading the target key character string when the DNS server is restarted; when the DNS server is started or restarted, the key character string is analyzed, the random key and the IV are extracted, and the integrity of the TSIG key is verified; and storing the decrypted TSIG key in a memory for data integrity verification in subsequent DNS service query and update. According to the scheme, the security problem caused by TSIG leakage can be solved, and the service processing of the DNS is not influenced at all.

The present invention provides a remote control parking test device and method, which relates to the field of testing technology. The method provided by the present invention includes collecting the posture data of the vehicle in real time in response to the remote control parking command sent by the portable terminal; injecting the function loss condition; if an alarm signal or a parking success signal sent by the vehicle computer is received, determining the stop position of the vehicle according to the posture data; and determining the test result of the remote control parking according to the stop position of the vehicle and the function loss condition. The present invention is used to test the response of the vehicle parking under the condition of function loss.

The invention discloses a test device for verifying the instantaneous damage safety of passenger cabin glass and a test method thereof, and relates to the field of aircraft passenger cabin glass, and the test device comprises a first pressurization cavity, a second pressurization cavity and a damage control device, and one side of the first pressurization cavity is provided with a test piece installation port; the test piece mounting port is communicated with the second booster cavity, and a passenger cabin glass test piece is hermetically connected to the test piece mounting port; a through hole is formed in the side, away from the first pressurizing cavity, of the second pressurizing cavity and connected with tempered glass in a sealed mode. A plurality of first cavity function holes are formed in the periphery of the first pressurization cavity, a plurality of second cavity function holes are formed in the periphery of the second pressurization cavity, pressurization and / or pressure relief and / or pressure monitoring in the corresponding cavities are / is achieved, and the damage control equipment is located on the outer side of the tempered glass and crushes the tempered glass. The effects of simulating the instantaneous damage working condition of the passenger cabin glass and verifying the residual strength safety of the passenger cabin glass on the premise of considering the operation safety are achieved.