14results about How to "Improve application security" patented technology

The application discloses a preparation method of honey-mediated silver nanoparticle / attapulgite composite antibacterial material, which comprises the following steps: dissolving natural honey in water to form a honey aqueous solution under stirring, dispersing attapulgite powder into the honey aqueous solution to obtain a uniform mixed solution, adding silver nitrate aqueous solution dropwise into the mixed solution, adjusting the pH of the mixed solution to 8-9, and continuously stirring the mixed solution at room temperature for 3-6 hours; and centrifuging, washing and drying the obtained product to obtain the silver nanoparticle / attapulgite composite antibacterial material. The active components in the honey are used as a reducing agent and a stabilizer, the silver nanoparticle / attapulgite composite antibacterial material is synthesized by one-step method, the preparation process is green, simple and efficient; the natural attapulgite is used as a carrier, on the one hand, the generation process of the silver nanoparticles is regulated, and the technical problem of effectively reducing the agglomeration of the silver nanoparticles is solved; and on the other hand, the biological activity is synergistically enhanced, so that the silver nanoparticles can play a more efficient antibacterial role and the application safety is improved.

The present application relates to the field of pharmaceutical preparation and nanomedicine, and particularly relates to a kind of nano-drug composition, its combined drug delivery system and application.The nano-drug composition comprises alpha 1-AR blocker and amphiphilic nano-carrier;The alpha 1-AR blocker is loaded in the hydrophobic core formed by amphiphilic nano-carrier;The alpha 1-AR blocker is selected from one or more of prazosin, terazosin, doxazosin;The average particle size of the nano-drug composition is 220-260 nm, the polydispersity index is less than 0.3, and the encapsulation efficiency is greater than 50%.The nano-drug composition of the present application has dual functions of anti-tumor proliferation and immune microenvironment remodeling, improves the dispersion stability of the drug in physiological medium, effectively reduces the in vivo clearance rate, prolongs the circulation time, and realizes the efficient in vivo delivery of the drug.The preparation process of the nano-preparation is stable and can be produced on a large scale.

The application relates to the field of wireless radio frequency identification and Internet of Things tracing technology, in particular to an RFID electronic tag data tracing system and method; the system comprises a data acquisition module, a benchmark reconstruction module, a variation simulation module, a residual error generation module, a coupling judgment module and a tracing feedback module; electronic tag digital identification data, underlying radio frequency characteristic data and tracing node space-time data are acquired, an ideal benchmark characteristic vector is reconstructed, an abnormal state is injected to generate a damaged simulation characteristic vector, actual measurement residual error and simulation residual error are formed and are subjected to time alignment and scale normalization, similarity calculation and environment coupling scoring are combined to output physical tampering, environmental noise or to-be-recovered judgment, and tracing chain blocking, radio frequency compensation or reacquisition instructions are generated; the application can distinguish between environmental fluctuations and malicious tampering, reduce false positives and false negatives, and improve the credibility of the tracing chain.

The present application relates to the technical field of functional film, in particular to a functional film with controllable adhesive property and preparation method thereof.The functional film comprises a film substrate, a pressure-sensitive adhesive layer coated on the film substrate, and a release film layer temporarily attached to the pressure-sensitive adhesive layer.The functional film has the property of increasing adhesive property after ultraviolet irradiation, and the ratio of the peeling force F2 after ultraviolet irradiation to the peeling force F1 before ultraviolet irradiation is greater than 5.The current on the adhesive surface of the functional film prepared by the present application is 10-1000 pA, and the through current is 50-500 pA.Compared with the prior art, the functional film prepared by the present application has controllable current on the adhesive surface and through current, excellent electrical performance, avoids the problems of current accumulation in the adhesive layer, interference with signal transmission accuracy, and local overheating, and improves the application safety of the material.

The invention discloses a self-generating multi-agent confrontation system and method based on quantum random entropy injection, belongs to the technical field of artificial intelligence and quantum computing, and aims to replace a traditional pseudo-random number with quantum random entropy injection, so that an agent decision-making path is essentially unpredictable, malicious attacks based on historical data are effectively resisted, and the service life of the agent decision-making path is prolonged. The application security of the system in high-sensitivity fields such as finance and security is greatly improved; the quantum mutation mechanism can randomly trigger evolution of agent strategies, human settings, view angles and the like, simulate evolution and selection processes, can spontaneously generate innovative analysis and insight except a traditional fixed strategy pool, and has breakthrough in solving complex problems; the intelligent agent can be dynamically adjusted and optimized according to real-time performance and quantum random triggering in the confrontation process, continuous improvement of the overall capacity of the system is achieved, the whole process from demand analysis, intelligent agent generation to confrontation judgment is automatic, new fields and new tasks can be rapidly adapted, and development and maintenance cost is greatly reduced.

The application discloses application of dimethoxyphenol and a biological preparation thereof in plant pathogenic nematode control, and aims to solve the problems of single function, unknown active ingredient, unclear mechanism and unstable quality of existing microbial source preparations. The application accurately identifies 2,3-dimethoxyphenol as an important nematicidal active substance through metabolomics, and realizes stable co-accumulation of 2,3-dimethoxyphenol and a growth-promoting factor, isopentenyladenine, by combining with a specific strain (pink helical polysporal mold NF-06 and bacillus velezensis YB-1652) co-culture process, so that technical effects of clear composition, synergistic disease-preventing and growth-promoting function, controllable quality and environment friendliness are achieved.

This invention relates to the field of microencapsulation technology for natural products, specifically to a water-soluble ginger oleoresin microcapsule, its preparation method, and its applications. The invention uses modified starch, plant polysaccharides, etc., as wall materials and ginger oleoresin as the core material. The ginger oleoresin microcapsule product is obtained through processes such as ginger oleoresin molecule coating, emulsification, high-pressure homogenization, constant-temperature standing, and drying. This product features high gingerol content, good water solubility, and low spiciness in the solution. It also exhibits good stability in acidic solutions, meeting the requirements of high stability, no precipitation, low spiciness, and good heat sensitivity in low pH environments. It is suitable for use in food, beverages, health foods, pharmaceuticals, cosmetics, and other fields.

The application discloses a kind of zinc dendrite-free deposition carbon fiber negative materials based on Cu-Zn-ZIF-8 and battery and method, belong to the field of flow battery electrode material.The application covers a layer of Cu-Zn-ZIF-8 material on the surface of carbon fiber, to realize the uniform stable deposition of zinc ion, inhibit the generation of zinc dendrite.Cu-Zn-ZIF-8 is grown on the surface of carbon fiber by hydrothermal reaction, because it has higher binding energy between Zn atom, can reduce the nucleation barrier of Zn, promote Zn deposition.The method is simple, stable performance, carbon felt prepared by the method is used as the electrode material of zinc-based flow battery negative electrode, can enhance the mass transfer rate of zinc ion on the electrode surface, can also increase the nucleation site of Zn, significantly improve the deposition uniformity of zinc ion in the reduction process, inhibit the generation of zinc dendrite, widen the current density range of battery work, improve the service life and safety of zinc-based flow battery.

The invention provides a polyvinylpyrrolidone modified cerium-based UIO-66 nano material as well as a preparation method and application thereof, and relates to the technical field of nano materials, catalysts and antitumor drugs. According to the method, cerium ions are used as metal nodes, terephthalic acid is used as an organic connector, a crystal framework with a UIO-66 characteristic topological structure is formed, then, polyvinylpyrrolidone is introduced into framework nano particles in situ through solvothermal reaction, and the nano particles are prepared. Therefore, the polyvinylpyrrolidone modified cerium-based UIO-66 nano material which is uniform in morphology and good in dispersity and has an efficient piezoelectric effect and peroxidase activity is obtained. The cerium-based UIO-66 nano-material disclosed by the invention can obviously enhance the catalytic performance under remote and accurate regulation and control of ultrasonic waves, and excites an additional biological catalytic function, so that the defect of single treatment is overcome through multi-mechanism synergy, and high-efficiency, low-toxicity and controllable treatment on tumors is realized.

The invention discloses a magnetic biliary tract stent pushing system which comprises a magnetic biliary tract stent composed of a stent body, a connecting part and a magnetic tail end. The pushing system is composed of an electromagnet, a lead wire, a switch assembly and a power plug; the electromagnet is connected with the magnetic tail end in an inserted mode. The invention provides a magnetic biliary stent pushing system. The instrument is based on magnetic field force, and simple, convenient and reliable release is realized by utilizing the switching characteristic of the electromagnet; and on the other hand, the positioning characteristic of the magnetic field force is utilized to ensure safe and simple recovery of the bracket. In addition, due to the fact that releasing and recycling are easy, convenient and safe, the influence of the length of the support on the treatment effect is reduced, and the adaptability of the device is improved; and meanwhile, the blunt design of the tail end of the bracket improves the application safety.

The present application relates to wave-absorbing material technical field, specifically to a kind of flame-retardant wave-absorbing material based on polystyrene foam and preparation method thereof.The present application uses one-dimensional magnetic sepiolite fiber and two-dimensional modified graphene oxide as raw material, three-dimensional directional porous structure composite aerogel is prepared by freeze drying, composite aerogel, flame retardant, film forming agent, dispersing agent, defoaming agent and deionized water are obtained to obtain wave-absorbing coating;Foamed polystyrene beads are put into wave-absorbing coating, and after stirring evenly, drying, molding, the flame-retardant wave-absorbing material based on polystyrene foam is obtained.The flame-retardant wave-absorbing material based on polystyrene foam prepared by the present application not only has excellent wave-absorbing performance, but also has excellent flame-retardant performance and mechanical properties.

This invention provides a train braking control method, device, computer equipment, and storage medium. The method includes obtaining the real-time position of the train and determining the track conditions at that position. The real-time position is compared with the positions of other trains to identify trains with similar positions. Then, based on the asynchronous relationship between the positions, a response cancellation duration corresponding to each train position is determined. Different control locomotives have their own corresponding response cancellation durations, and each control locomotive executes braking actions according to its corresponding response cancellation duration. The response cancellation duration is used to compensate for differences in the response delay of different control locomotives to braking commands, allowing different control locomotives, such as the master locomotive and the slave locomotive, to act simultaneously, thereby reducing longitudinal impulses and improving train operational safety.

The utility model discloses a centrifugal film machine with safety door belongs to centrifugal film machine field, has solved the problem that the door body is opened because of the misoperation, and the technical scheme of solving this problem mainly includes the frame body, is equipped with controller, drive motor, the drum rotating by drive motor drive in frame body, and the injection film mechanism and heating mechanism, is equipped with first sensor on the drum, and the front side of frame body is provided with the door body, is equipped with the locking piece for locking the door body on the frame body, and the side of drum towards the door body forms the entrance, and heating mechanism sliding installation is in the door body, is equipped with second sensor for detecting the distance between heating mechanism and the door body on the door body, and the controller is equipped with the rotating speed threshold value and distance threshold value, and the locking piece only when the rotating speed of drum is lower than the rotating speed threshold value and the distance between heating mechanism and the door body is less than the distance threshold value, releases the locking of the door body. The utility model mainly is used to ensure that the door body can only open when the rotating speed of drum is lower and heating mechanism is separated from the drum.

The present application relates to the use of chicory ethyl acetate extract. In vitro experiments, using CellTiter-Glo luminescence method to evaluate the effect of chicory ethyl acetate extract on triple negative breast cancer cells, the results show that the extract significantly inhibits tumor cell proliferation. In vivo experiments: the anti-tumor effect of chicory ethyl acetate extract is verified by triple negative breast cancer animal model, the results show that: chicory ethyl acetate extract can effectively inhibit tumor growth. Further experiments show that the anti-tumor effect of chicory ethyl acetate extract is related to its regulation on PI3K / Akt / mTOR signaling pathway. The chicory ethyl acetate extract provided by the present application can be used for preparing drugs or pharmaceutical compositions for preventing and treating triple negative breast cancer.