19results about How to "Reduce potential security risks" patented technology

The invention relates to a vector propulsion spherical airship with an adjustable structure. The spherical airship is mainly composed of a vector propelling device, an airship capsule, an airship framework, a flight control module, a posture detection module, an environment monitoring module, a battery and the like. By adjusting the thrust direction of the vector propulsion device and the included angle between the airship framework and the capsule body, accurate control over the attitude and the flight path of the airship is effectively achieved. The design has the advantages of being small in size and compact in structure, and the propelling device is installed on the framework with the adjustable included angle, so that the control process is more flexible. Meanwhile, the propelling device achieves dynamic position adjustment through a framework structure and is prevented from being located in the airship movement direction, and potential safety hazards of a traditional external propeller are overcome. Although only two propelling devices are configured, the system can still provide fine control capability through seven controllable degrees of freedom, and the precision and flexibility of flight control are remarkably enhanced.

The invention discloses a returned intelligent electric meter sorting assembly line monitoring system. The system comprises a feature fusion sorting module, a digital mapping control module, a chain type tracing management module, a state diagnosis module and an environment management and control module. The feature fusion sorting module collects ammeter data through an industrial camera array, a microphone array, a structured light scanner and an infrared thermal imager, and performs feature fusion classification; the digital mapping control module calculates sorting process control parameters by using a distributed control model and an optimization algorithm; the chain type traceability management module adopts a block chain technology to record data and realize information retrieval; the state diagnosis module performs equipment fault prediction in combination with a data prediction technology; the environment management and control module monitors key parameters of the sorting environment. According to the system, the automation and intelligence level of an electricity meter sorting assembly line is improved, and the problems that an existing system is low in sorting efficiency, lagged in equipment monitoring and the like are solved.

The invention provides an agrobacterium tumefaciens-mediated genetic transformation method for oil palm, which comprises the following steps of: screening and using agrobacterium tumefaciens liquid concentration, dip dyeing time, co-culture time, acetosyringone concentration and antibiotic concentration which are most suitable for genetic transformation of the oil palm in a transformation process in an agrobacterium tumefaciens-mediated manner by taking an oil palm embryonic callus as an explant; an expression cassette containing the EPSPS mutant gene is used as a screening marker, and glyphosate is used as a screening agent for screening, so that the glyphosate-resistant callus is successfully obtained. The screening efficiency of the method exceeds that of a traditional hpt / hygromycin screening system. Meanwhile, the effectiveness of the EPSPS / glyphosate screening system in genetic transformation of the oil palm is also proved, the EPSPS / glyphosate screening system is marked to be applied to genetic transformation of the oil palm for the first time, and a valuable tool is provided for promoting research of an important economic crop.

The utility model discloses a nozzle matching part of a gas fuel injector, which comprises a needle valve and an outer needle valve body, and is characterized in that an annular sealing groove is arranged on the sealing end surface of a gas fuel conveying gas inlet on the outer needle valve body; the upper end face of the outer needle valve body is provided with an annular sealing groove and an oil seepage groove communicated with a high-pressure oil control cavity containing control oil. According to the utility model, the annular sealing groove and the oil seepage groove are ingeniously designed on the outer needle valve body, so that the gas fuel injector is effectively sealed by high-pressure control oil. According to the double-sealing structure, the sealing performance of the ejector is remarkably improved, gas leakage is effectively prevented, the working safety and reliability of the ejector are greatly improved, and a solid guarantee is provided for stable operation of an internal combustion engine. Meanwhile, the innovative design also shows the advancement and the practicability of the gas fuel injector in the technical field of gas fuel injection.

The present application relates to the field of cell therapy and regenerative medicine, and in particular to a kind of old age adipose tissue-derived mesenchymal stem cells pretreated by MK8722, its preparation method and application.The method comprises the following steps: the old age adipose tissue-derived mesenchymal stem cells are inoculated in culture solution containing MK8722 to carry out in vitro treatment, and first cells are obtained;The culture solution containing MK8722 is removed, and the first cells are washed to obtain second cells;Second cells are cultured using culture solution without MK8722, and the old age adipose tissue-derived mesenchymal stem cells pretreated by MK8722 are obtained.The cells obtained by the method, relative to the old age adipose tissue-derived mesenchymal stem cells without the in vitro treatment, show at least one improvement in proliferation capacity, continuous passage amplification capacity, adipogenic differentiation capacity or chondrogenic differentiation capacity, and can be used to prepare products for treating or alleviating osteoarthritis.

This invention belongs to the field of agricultural biotechnology, specifically relating to a plant constitutive promoter OsSULTR2;2pro and its applications. The nucleotide sequence of the promoter OsSULTR2;2pro is shown in SEQ ID NO.1. The promoter OsSULTR2;2pro of this invention is an endogenous constitutive promoter for rice, capable of driving efficient and stable expression of target genes in plant callus tissue, roots, stems, leaves during vegetative growth, as well as young panicles and seeds, and can replace existing non-plant-derived promoters. It has significant application value in the field of plant genetic engineering and can effectively reduce the potential safety risks of transgenic plants caused by the introduction of exogenous DNA.

The invention discloses a preparation method of inositol nicotinate tablets, and belongs to the technical field of pharmaceutical preparations. By optimizing the existing process and coating components, stable dissolution of drugs is realized, and the method comprises the following steps: dispersing inositol nicotinate in mixed oil to prepare an oil phase, mixing and emulsifying the oil phase and a water phase, performing spray drying to obtain drug milk powder, coating the drug milk powder with modified chitosan, and directly tabletting the coated drug milk powder and auxiliary materials. The preparation method comprises the following steps: uniformly dispersing inositol nicotinate in mixed oil to promote the inositol nicotinate to maintain the uniformity of the drug content in the subsequent process, and adsorbing solid particles on the surfaces of drug-containing oil drops through an emulsification technology to protect the drug components; coating components are reasonably designed, so that fixed-point release of the medicine is realized, the medicine is endowed with anti-pressure ability, and the medicine can be directly tableted; and the coated medicine particles are mixed with auxiliary materials and then are directly tableted, so that the process is simplified, and the coating structure of the medicine particles is protected at the same time. The preparation method can prepare the inositol nicotinate tablet with stable drug dissolution, and the inositol nicotinate tablet is good in taste and small in stimulation to gastric mucosa.

The utility model discloses a detachable silicon steel sheet maintenance frame, which comprises adjusting seats, an auxiliary supporting plate and a supporting frame, the two ends of the auxiliary supporting plate are both provided with the adjusting seats, telescopic rods are movably installed in fixing sleeves on the two sides of the adjusting seats, and the top ends of the two telescopic rods are both fixedly connected with the inner side of the supporting frame. Silicon steel sheets are arranged on the inner sides of the fixing grooves in the inner wall of the supporting frame, threaded columns are arranged at the bottoms of the two sides of the supporting frame, and connecting rods are connected to the portions, above the threaded columns, of the supporting frame through shafts. The modular design is adopted, so that the maintenance frame can be quickly disassembled and assembled, unique connecting devices are adopted between the frames, the stability of frame connection is ensured, potential safety risks caused by unstable connection are reduced, meanwhile, the size of the frame can be adjusted according to actual requirements, and the maintenance cost is reduced. Therefore, the maintenance requirements of silicon steel sheets of different specifications are met, and the applicability of the frame is improved.

The invention provides a potential diffusion model-based port information generation method and device. The method comprises the following steps of: 1, training a potential diffusion model and a vector quantization variational auto-encoder model; step 2, acquiring an IP address and initial data of network equipment which needs to generate port information; step 3, generating a potential variable of a port matrix of each network device; and step 4, decoding to obtain a port matrix of each corresponding network device. According to the method, the port matrix generated through the potential diffusion model can more accurately reflect the characteristics of the input condition IP address, so that the accuracy and predictability of port configuration are improved; according to the method, the port matrix is generated by adopting a deep learning technology, so that the efficiency of port generation and configuration is improved; the port matrix generated by the invention can better adapt to network security policy and vulnerability scanning requirements, effectively reduces potential security risks, and improves the overall security and stability of a network system.

The application relates to a smart park security management method, system, device and medium, and belongs to the technical field of smart parks, which comprises the following steps: receiving an access reservation form, identifying the unique identifier of a visitor and a reservation event, and querying historical records in a visit event library according to the unique identifier to calculate initial trust points. Based on the points and the reservation event, a dynamic authorization seed is created, and an access link containing the seed is sent to the visitor end. After entering the park, the initial dynamic access corridor and the permission accompanying unit are generated by using the dynamic authorization seed to guide the visitor to move. When the visitor approaches the target site, the first sub-permission is granted in the adjacent area to allow entry; after entering the target site, the second sub-permission is granted in combination with the historical visit information of the target site and the visitor's own record. When it is detected that the visitor is leaving, the permission recovery instruction is broadcasted to all network edge nodes, the visitor portrait is updated, and the local cache is emptied; the visitor experience is improved, and the security protection capability of the park is strengthened.

This invention discloses a preparation process for a ready-to-use, compounded collagen-poly-L-lactic acid (PLLA) composite filler, comprising: preparing and independently packaging three sterile components: Component A is an injectable coagulated type I collagen solution with a concentration of 30-40 mg / mL; Component B is lyophilized PLA microspheres, with a single bottle containing 150 mg of PLA microspheres; Component C is a sterile reconstitution solvent; injecting a predetermined volume of Component C into a container containing 3-5 mL of Component B, allowing it to stand for 3-10 minutes to obtain a PLA microsphere suspension with a concentration of 30-50 mg / mL; extracting a predetermined volume of Component A and injecting it into a container containing the suspension, then mixing it by reciprocating injection using a three-way stopcock to obtain a homogeneous composite filler mixture. Since the two active components are already independently sealed finished products before compounding, secondary terminal sterilization is not required, thus ensuring the optimal bioactivity and structural integrity of each component from the source, significantly reducing potential safety risks caused by damage to active ingredients.

The invention discloses a safety management system based on an intelligent safety helmet, particularly relates to the field of intelligent safety helmets, and comprises an intelligent safety helmet terminal, an electronic fence module, a cloud data center and a mobile management terminal. According to the invention, through cooperation of the positioning module and the electronic fence, automatic and accurate attendance checking and regional compliance monitoring are realized; the wearing state of the safety helmet is monitored in real time through the human body induction sensor, and uncapping alarm is achieved; all data are uploaded to a cloud data center through the Internet of Things module for unified management and analysis, the problems that traditional manual attendance checking is low in efficiency, personnel positions and states cannot be monitored in real time, safety supervision is passively lagged and the like are solved, and active, intelligent and whole-process safety management of field operation personnel is achieved.

The present invention relates to the technical field of catalyst preparation, and in particular to a rapid soaking method for catalysts used in MTBE production, the method comprising: periodically acquiring the actual reflux water level rise rate with a preset initial duration, calculating the water level rise rate change between the actual reflux water level rise rates at any two adjacent acquisition moments, judging whether to start an abnormality inspection mode according to the water level rise rate change, and performing an abnormality inspection on each preparation link according to the abnormality inspection mode, and judging to start an extraction mode based on the fact that each preparation link is qualified. The present invention avoids a large amount of methanol remaining in the catalyst by replacing methanol with carbon four after ether, reduces the unqualified MTBE product caused by methanol accumulation at the bottom of the catalytic distillation tower, and improves the overall operating efficiency of the device; water is pressed out of the catalyst by pressure, thereby improving the soaking replacement efficiency and thus improving the overall production efficiency.

This invention relates to the field of power system security technology, specifically disclosing a grounding wire management operating system based on grounding cabinet monitoring. This system includes a physical sensing layer, an edge computing layer, a blockchain consensus layer, and an application service layer. The physical sensing layer collects grounding wire identity, in-situ status, and electrical parameters; the edge computing layer performs local data processing and event determination; the blockchain consensus layer achieves trusted data storage and cross-domain sharing through smart contracts and distributed ledgers; and the application service layer provides comprehensive asset display, collaborative verification, and risk warning services. Through this architecture, this invention achieves unified management and secure collaboration of grounding wire lifecycle data, improving the level of power grid safety operation and maintenance.

The invention discloses an intelligent auxiliary system based on an instrument sharing platform in the technical field of information, and the system comprises an information collection module which is used for collecting basic information of an instrument sharing platform user and instrument use information; the database module is used for establishing a basic database based on the information acquired by the information acquisition module and managing and optimizing the information of the basic database; the statistical analysis module is used for performing statistical analysis on instrument use condition information and fund account information according to the collected instrument use information; the screening and error correction module is used for carrying out screening and error correction on the instrument use condition information according to the basic database; and the reporting module is used for forming a report form according to the information completing screening and error correction for reporting. The system is intelligent and efficient, the MATLAB is used for constructing a database to count and analyze the instrument use condition information and the required fund account information, intelligent data screening, error correction and reporting are carried out, the working efficiency of statistical analysis is improved, and orderly and efficient operation of an experiment teaching platform is guaranteed.

The present invention relates to the technical field of electrical cabinets, and specifically to a frame stabilizing mechanism adapted to an electrical control cabinet, comprising a sleeve frame, the sleeve frame being sleeved on a main body of the electrical control cabinet, a cabinet door being hinged at a window of the main body of the electrical control cabinet, a limit buckle plate being slidably connected to the bottom surface of the sleeve frame, the limit buckle plate being buckled on the opened cabinet door after it falls down, a wing plate being fixed to the bottom surface of the sleeve frame, a base being slidably connected to the bottom end of the wing plate, a pulley being rotatably connected to the bottom surface of the base, a crossbeam plate being fixed to the surface of the crossbeam plate, a hand-tightening screw being screwed on the surface of the wing plate after the hand-tightening screw passes through the crossbeam plate; the beneficial effect is as follows: by designing the limit buckle plate structure, when the cabinet door of the electrical control cabinet is opened, the limit buckle plate can automatically fall and buckle on the cabinet door, effectively preventing the cabinet door from swinging due to wind or other external forces, thereby ensuring the smooth progress of maintenance work and reducing potential safety risks to maintenance personnel.

A magnetic attraction ring structure capable of preventing an attracted face from being abraded comprises a C-shaped ring, a base, a rotary cover, a gasket and a strong magnetic block. The C-shaped ring is characterized in that the C-shaped ring is provided with a ring head and a ring tail, a through hole is formed in the middle of the C-shaped ring, and a seat is arranged outside the ring head; the base is provided with an annular groove and a first annular protrusion. A first inner cavity is formed in the base; a second inner cavity is formed in the rotary cover, and a second annular protrusion is arranged on the edge opening of the second inner cavity; the rotary cover can cover the seat; the gasket is arranged between the strong magnetic block and the bottom of the second inner cavity, the gasket has a lubricating function, and the rotary cover is rotationally connected with the base; the gasket is arranged at the bottom of the second inner cavity, and the strong magnetic block is embedded and fixed in the first inner cavity. The magnetic ring structure provided by the utility model is not only suitable for computer peripherals, but also expected to be expanded to the field of other intelligent wearable devices, and has a wide market application prospect.

The invention discloses a distributed photovoltaic district energy storage charging and discharging control method based on deep learning, relates to the technical field of power system automation, realizes the conversion of energy storage control from passive response to active defense through situation awareness and dynamic boundary prospective mechanisms, and utilizes a deep learning network in district situation awareness to realize the energy storage control. The power and electric quantity safety boundary of energy storage charging and discharging in the next period is calculated in real time by accurately predicting the area net load power and combining the physical constraint of the area, and the mechanism is used for constructing an operation space dynamically changing along with the future situation, so that any follow-up control decision is limited in the safety space in advance, and the safety boundary of the energy storage charging and discharging in the next period can be calculated in real time. And when the photovoltaic output is predicted to be suddenly increased, the charging power upper limit of energy storage is tightened in advance, and the occurrence of line overload or voltage out-of-limit is actively prevented, so that the probability of potential safety risks is reduced.

The invention provides a vehicle domain control system and a vehicle, and relates to the technical field of domain controllers. The vehicle domain control system comprises a safety monitoring module, a fault diagnosis module and a safety degradation module. The safety monitoring module is configured to monitor operation parameters of the vehicle domain control system and generate first fault information under the condition that abnormal operation parameters are monitored; the fault diagnosis module is configured to determine a first fault severity level of the vehicle domain control system based on the first fault information, and the first fault severity level is in positive correlation with the fault severity of the vehicle domain control system; the safety degradation module is configured to determine a target safety state matched with the first fault severity level and a current safety state where the vehicle domain control system is currently located, and under the condition that the fault severity level corresponding to the current safety state is lower than the first fault severity level, the vehicle domain control system is in the target safety state. And the vehicle domain control system is controlled to be converted into the target safety state from the current safety state, so that the function safety and reliability of the vehicle domain control system are improved.