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55results about How to "Reduce the risk of intrusion" patented technology

Method for preparing bacterial cellulose wet-coating for artificial skin

The present invention discloses a preparation method of bacterial cellulose wet membrane for artificial skin. Said method includes the following steps: (1), transferring liquid culture medium onto slant culture medium to implement activation of strain; (2), inoculating the activated slant strain into seed culture medium, stirring and making culture for 20-25 hr, inoculating said strain into liquid culture medium, making culture for 6-10 days; (3), quickly-separating and purifying cellulose wet membrane, storing in refrigerator.
Owner:DONGHUA UNIV

Ferment liquid-state fertilizer and production method thereof

The invention discloses ferment liquid-state fertilizer. The ferment liquid-state fertilizer is prepared from the following components, in parts by weight: 60-120 parts of apple peel, 60-120 parts ofbanana peel, 60-120 parts of watermelon peel, 50-100 parts of citrus pomace, 50-100 parts of guava leaf, 80-120 parts of plant ash, 25-35 parts of cane sugar, 10-15 parts of medium element, 3-5 partsof microelement, 8-10 parts of polyvinyl alcohol, 8-10 parts of shell powder, 6-8 parts of pectin compound enzyme, 6-8 parts of enzyme microorganism and 3-5 parts of EM (effective microorganism) flora. The ferment liquid-state fertilizer can improve the soil environment, promotes soil microbial metabolism to be vigorous, adsorbs and degrades the soil elements, enhances crops to grow healthily andvigorously, improves the quality and yield of the crops, avoids using of chemical pesticides, and has the advantages of being environmentally friendly, healthy and low-cost planting.
Owner:杨芳

Electric car battery pack and operation monitoring control system thereof

The invention relates to an electric car battery pack in the technical field of battery packs for electric cars. The battery pack comprises a battery pack body, a battery management system and a communication module, the battery pack body is in bidirectionally electrical connection with the battery management system, the battery management system is set to collect state data of the battery pack body, the number of the battery pack and a fault code, the battery management system is in bidirectionally electrical connection with the communication module, the communication module is in bidirectionally electrical connection with a cloud platform, and the cloud platform is in bidirectionally electrical connection with an intelligent terminal. Scattered electric-car battery pack states are monitored in real time, the geographic position of the battery pack can be located rapidly and accurately as well as the fault type can be determined when the battery pack has a fault, the data transmissionamount can be amount, the data communication burden of the cloud platform is alleviated, it is ensured that data is unique in communication, the communication safety is improved, and the risk of network invasion is reduced.
Owner:优鸿蒙智慧能源(无锡)有限公司

Remote information communication system and linking method thereof

A remote information communication system and a linking method thereof are provided. The remote information communication system comprises a management server, at least one linking server and at least remote equipment. The method involves detecting specified remote devices e.g. security alarm equipments, by Internet. Administration servers e.g. electrical household appliances, are provided with an address of connection servers responding to a proximate device. The remote devices are registered with the connection servers, and connection is formed between the proximate device and a remote server according to the responded address. A link is formed between the proximate and remote devices according to the request of the proximate device by the connection servers. An independent claim is also included for a distant information communication system comprising an administration server.
Owner:THROUGHTEK

Anti-falling cupping device

The invention discloses an anti-falling cupping device which comprises an organic glass pipe which is integrally formed and an elastic rubber bowl, wherein the elastic rubber bowl is connected to one end of the pipe in a sleeving mode and used for generating negative pressure. The organic glass pipe comprises a circular outer pipe and an inner pipe, wherein the outer pipe and the inner pipe are coaxially arranged. One end of the outer pipe and one end of the inner pipe are connected through an annular connection wall. An annular outer cavity is formed between the outer pipe and the inner pipe. Inner cavities are formed in the inner periphery of the inner pipe and in the elastic rubber bowl. A one-way valve communicated in the single direction from the outer cavity to the inner cavity is arranged on the inner pipe. The elastic rubber bowl is provided with a plurality of outwards-protruding walls of different thicknesses through molding, in this way, when different outwards-protruding walls are pressed with the same amplitude, the negative pressure generated due to the restoring force function of the outwards-protruding walls is different, accordingly different amplitudes of negative pressure can be obtained conveniently, and the anti-falling cupping device is suitable for being used for conducting cupping on different acupuncture points.
Owner:南通江海港建设工程有限公司

Improved PBFT consensus method suitable for Internet of Vehicles environment

The invention relates to an improved PBFT consensus method suitable for an Internet of Vehicles environment, and the method comprises the steps: dividing node identities into four types, and processing the node identities in combination with a node identity verification and change mechanism; adopting a node credit reward and punishment mechanism and selecting GMM clustering to divide the nodes into different levels, and giving node rights according to the levels; determining regional representative candidate nodes in combination with the number of different types of nodes in each region and the credit rating, performing voting of different weights according to node types to determine regional representative nodes, and selecting unselected nodes to form standby regional representative nodes; determining a multi-region or region internal consensus mechanism according to a transaction related range, wherein the region internal consensus mechanism randomly selects a main node from nodes with the highest credit rating in the region; according to the multi-region consensus mechanism, a plurality of region representative nodes form a main node group competition construction block, and a simplified consistency protocol is executed to achieve consensus. The method can tolerate a certain number of malicious node intrusion attacks, effectively reject malicious nodes and reduce transactiondelay.
Owner:ZHEJIANG SHUREN COLLEGE ZHEJIANG SHUREN UNIV

Automobile inner sliding type charging small door

An automobile inner sliding type charging small door comprises a charging port base which has an inner chamber, an external opening and a charging port; a charging port cover which is installed in thecharging port base in an openable and closable mode, and the charging port cover is provided with a sliding foot assembly; a driving mechanism which is used for switching the charging port cover between a covering state and an opening hidden state; a flexible transmission rack of which the input end is in transmission connection with the driving mechanism; a transmission sliding block which is provided with a linkage groove, and the transmission sliding block is in transmission connection with the output end of the flexible transmission rack; and a guide block which is provided with a guide track groove, the sliding foot assembly is arranged in the guide track groove in a sliding mode, and the sliding foot assembly is further inserted into the linkage groove. Through the structural design, the charging port cover has a covering state and an opening hidden state, can be integrated with the outer surface of a vehicle body in the covering state, has better attractiveness, plays a good role in protection during charging, cannot scratch the skin or clothes of a human body, and greatly improves the safety.
Owner:NINGBO HUADE AUTOMOBILE PARTS

Ocean vessel ballast water treatment barge for port operation

ActiveCN108218047AFast pool processingPool processing securityWater treatment compoundsTreatment involving filtrationHigh concentrationCavitation
The invention discloses an ocean vessel ballast water treatment barge for port operation and belongs to the technical field of ocean biologics and environmental protection. On the basis of technical advantages that ballast water marine organisms can be rapidly killed through high-concentration activated oxygen together with a hydrodynamic cavitation high-grade oxidation technique, an integral ballast water high-grade oxidation treatment system is combined with a ballast water centering treatment vessel. By adopting the barge, concise, safe and efficient centering treatment on ballast water discharged from ocean vessels in port operation can be achieved. The barge does not affect port operation of vessels and is not limited by vessel shapes, a vessel does not need to be equipped with a special ballast water connector, a novel ballast water treatment device can be provided for a port operation vessel which is not equipped with a vessel ballast water treatment device, or a vessel which isalready equipped with the vessel ballast water treatment device, but the treatment effect cannot meet the IMO (International Meteorological Organization) ballast water discharge standards, and noveltechnical insurance means can be provided for reducing invasion risks of non-indigenous ocean organisms in ballast water, and preventing serious ocean non-indigenous organism invasion disasters.
Owner:DALIAN MARITIME UNIVERSITY

Mobile charging small door

The invention relates to a mobile charging small door comprising a charging port seat, a charging port cover, a belt wheel transmission mechanism, and a driving mechanism. The charging port seat is provided with an inner cavity, an external opening communicated with the inner cavity, and a charging interface communicated with the inner cavity and an in-vehicle battery assembly; and a guide track structure is also arranged at the charging port seat. The charging port cover is installed in the charging port seat in an openable and closable mode and at least has a closed state and an open hiddenstate, the charging port cover is provided with a sliding foot assembly, and the sliding foot assembly is arranged in the guide track structure in a sliding mode; the belt wheel transmission mechanismmatches the guide track structure in position, and the belt wheel transmission mechanism is in transmission connection with the sliding foot assembly; and the driving mechanism is in transmission connection with the belt wheel transmission mechanisms. Through the structural design, the charging port cover has a covering state and an opening hidden state, can be integrated with the outer surface of a vehicle body in the covering state, has better attractiveness, plays a good role in protection during charging, cannot scratch the skin or clothes of a human body, so that the safety is greatly improved.
Owner:NINGBO HUADE AUTOMOBILE PARTS

Malicious code identification method and device, computer equipment and medium

The invention relates to the technical field of artificial intelligence, and particularly discloses a malicious code identification method and device, computer equipment and a medium. The identification method comprises the following steps: analyzing a target code to obtain a characteristic value sequence used as target code identification information; respectively matching the characteristic value sequence with a plurality of pre-stored known value sequences; identifying that the target code is a malicious code based on the condition of successful matching, and calling and executing an adversarial script corresponding to a known value sequence matched with the feature value sequence; and performing classification processing on the target code based on the matching failure condition to determine the category to which the target code belongs so as to determine whether the target code is a malicious code. According to the invention, the malicious code can be accurately and quickly identified through dual modes of static detection and dynamic detection, the network security is greatly improved, and the possibility of honeypot escape of an attacker can be remarkably reduced.
Owner:PING AN TECH (SHENZHEN) CO LTD

Totally-enclosed disposable medical protective clothing and application method thereof

InactiveCN111480920AReduce the risk of infection and bacterial invasionSimplified wearing processGarment special featuresProtective garmentEngineeringBiomedical engineering
The invention discloses totally-enclosed disposable medical protective clothing and an application method thereof. The totally-enclosed disposable medical protective clothing comprises: protective clothing of an integrated structure; and a hood, wherein a transparent mask is arranged on one side, matched with the face, of the hood; the protective clothing and the hood are detachably connected intoan integrated structure; the hood is of a three-dimensional structure in space through a supporting member arranged in the hood; and the supporting member is configured to be prepared from a glass fiber rod. According to the totally-enclosed disposable medical protective clothing and the application method thereof, the mask can be directly arranged on the hood, so compared with the prior art, thetotally-enclosed disposable medical protective clothing is better in sealing performance; in virtue of detachable connection of the hood and the protective clothing, the wearing process of the totally-enclosed disposable medical protective clothing is simpler; and meanwhile, the supporting member is arranged in the hood to support the hood, so the head of a wearer does not bear weight, the internal space of the hood is large, the head of the wear can move flexibly, and the domination degree of the wearer to the body is not affected.
Owner:MIANYANG MEIKE ELECTRONICS EQUIP

Intercepting device for groundwater pollution control

The invention discloses an intercepting device for underground water pollution control. The intercepting device is provided with a strip-shaped underground ditch body; a longitudinal water and gas collecting well is arranged at the tail end of one side of the ditch body and is perpendicular to the ditch body; a high-permeability layer is arranged in the ditch body; a sealing layer is arranged at the top of the high-permeability layer; a water collecting pipe extending in the length direction of the ditch body is arranged in the middle of the lower portion, close to the ditch bottom, of the high-permeability layer, and one end of the water collecting pipe communicates with the water and gas collecting well; and a gas collecting pipe extending in the length direction of the ditch body is arranged in the middle of the upper portion, close to the sealing layer, of the high-permeability layer and above the water collecting pipe, and one end of the gas collecting pipe communicates with the water and gas collecting well. The intercepting device for groundwater pollution control can quickly and effectively intercept migration of groundwater pollution plume and synchronously repair groundwater pollution of soil in an upstream target area of the intercepting device.
Owner:SHANGHAI GREENMENT ENVIRONMENTAL TECH CO L

Concealed charging small door

A concealed charging small door comprises a charging port base, a charging port cover, a driving mechanism and a lead screw and sliding block transmission assembly. The charging port base is providedwith an inner cavity, an external opening communicated with the inner cavity and a charging interface respectively communicated with the inner cavity and a battery assembly in a vehicle, and a guide track groove is further formed in the charging port base. The charging port cover is installed in the charging port base in an openable and closable mode and at least has a closed state and an open hidden state, the charging port cover is provided with a sliding foot assembly, and the sliding foot assembly is arranged in the guide track groove in a sliding mode. The driving mechanism is used for providing power so as to switch the charging port cover between a covering state and an opening hidden state. The lead screw and sliding block transmission assembly comprises a lead screw, a nut seat and a guide sliding block which are sequentially connected, the lead screw is in transmission connection with the driving mechanism, and the guide sliding block is in transmission connection with the sliding foot assembly. The charging port cover has a closed state and an open hidden state, the occupied space is reduced, the production cost is reduced, and better safety, reliability and attractiveness can be achieved concurrently in the using process.
Owner:宁波百德汽车饰件有限公司

Intelligent network connection hybrid power vehicle domain control system and control method thereof

The invention relates to an intelligent network connection hybrid power vehicle domain control system and a control method thereof, and the system comprises a central controller which is responsible for supervision and scheduling; the sub-control domain, the information acquisition domain, the intelligent network connection domain and the automatic driving domain are in communication connection with the central controller through the gateway 1; the vehicle body control domain is in communication connection with the central controller; the energy management domain and the power system auxiliary control domain are in communication connection with the central controller through a gateway 2; the driving assistance domain, the chassis control domain and the power system control domain are in communication connection with the central controller through the gateway 3. The intelligent network connection hybrid power vehicle control system is divided by taking a'domain 'as a unit, each domain can operate independently, hardware resources are configured according to function requirements of each domain, efficient processing is achieved, and cost is reduced; the control and information scheduling of each domain are realized through the combination of the central processing unit and the gateway, so that the mutual influence among the domains is reduced, the situation that the whole vehicle is paralyzed due to abnormity is avoided, and the robustness of the system is effectively enhanced.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Web-based cloud service providing method and system and storage medium

The invention relates to a web-based cloud service providing method and system and a storage medium. The method comprises the steps that a web client sends a cloud service connection creation request to a proxy end, wherein the cloud service connection creation request comprises a token and a requested cloud service; the agent side responds to the cloud service creating request and checks whether the web client side has the authority of the requested cloud service according to a corresponding token, if yes, a unique random access ID is generated for the requested cloud service, and the corresponding relation between the IP and the port used by the requested cloud service and the generated random access ID is recorded; the random access ID is fed back to the corresponding web client; the web client constructs a target url by using the received random access ID and establishes a websocket connection with the proxy in a handshake manner; and the proxy end determines the requested cloud service according to the random access ID and connects the IP and the port of the requested cloud service. By applying the method and the device, the cloud service provided by the server can be safely accessed through web clients such as a browser and the like.
Owner:济南浪潮数据技术有限公司

Upper part repairing device and repairing method for two-section type transplanting

The invention provides an upper part repairing device and repairing method for two-section type transplanting. The upper part repairing device comprises an implant, a base, a healing abutment, a transferring rod, a repairing connecting body and a screw rod, wherein after the implant is transplanted to an alveolar bone, the base is fixed to the implant; the healing abutment is detachably connectedwith the base; the transferring rod is used for a stage of preparing a transplanting and repairing die plate; the healing abutment is replaced with the transferring rod to be connected with the base so as to prepare the transplanting and repairing die plate; after the preparing of the die plate is completed, the transferring rod is replaced with the healing abutment; in the final repairing stage,the healing abutment is replaced with the repairing connecting body to be fixedly connected with the base with a repairing screw rod; and a tooth crown is mounted on the repairing connecting body. According to the upper part repairing device and repairing method for two-section type transplanting provided by the invention, in the whole repairing process, the base does not need to move or disassemble and assemble, so that parenchyma is still not influenced, and the infection probability and the instability of the parenchyma of a patient in the repairing process are reduced to the maximum degree.
Owner:北京西科码医疗科技股份有限公司

Computer program product publishing method and system

The invention discloses a computer program product publishing method and system, and the method comprises the following steps: S1, deploying a GitLab / SVN server, a Jenkins server and a publishing management assembly in an internal network of a software development environment, and deploying an LNS server in an internal network of a production environment. The system provided by the invention comprises a GitLabs / SVN server, a Jenkins server, a release management component and an LNS server. According to the invention, the GitLab, the SVN and the Jenkins are arranged in the enterprise intranet and do not open services to the Internet, so that the risk of source code leakage caused by sniffing and burst is effectively avoided.
Owner:HEBEI ZHISHENG INFORMATION TECH CO LTD

Color filter substrate and display device

The invention provides a color filter substrate and a display device. The color filter substrate comprises a color filter base and a black matrix layer; the color filter base comprises an active areaand a frame area arranged beside the active area; the black matrix layer is arranged on the color filter base and located in the active area and partial frame area; a groove is arranged in an edge ofthe frame area of the color filter base, and the black matrix layer and the edge of the frame area of the color filter base are mutually separated through the groove, thereby preventing the external moisture from directly contacting the black matrix layer, and reducing the moisture intrusion risk.
Owner:WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD

Shearing type slurry pulse generation device

ActiveCN111236930AReliable structureRealize high-speed data transmissionSurveyPhysicsMotor shaft
The invention provides a shearing type slurry pulse generation device. The shearing type slurry pulse generation device comprises a pulse generation part, a driving part and a shell, wherein the pulsegeneration part comprises a stator and a rotor which are matched with each other; slurry flow through holes are formed in the stator and the rotor; the driving part comprises a motor and a rotor driving part; one end of the rotor driving part is connected with a motor shaft, and the other end of the rotor driving part is connected with the rotor; the shell is arranged at the periphery of the driving part; an oil immersion space is formed between the driving part and the inner wall of the shell; a hollow part is arranged in the rotor driving part; one end of the hollow part is communicated with the outside; a blind hole is formed in the other end of the hollow part; an oil through hole communicated with the oil immersion space is formed in the side wall of the hollow part; and a first balance plunger is arranged in the hollow part. According to the shearing type slurry pulse generation device, the rotor driving part is hollow, so that the inertia of the rotating shaft can be reduced; the device is more easily controlled; the power consumption can be reduced; the sealing effect can also be improved; and the device is capable of effectively preventing the slurry from entering the device.
Owner:INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI

Conductive silver paste composite material, display device and preparation method thereof

The invention provides a conductive silver paste composite material, a display device and a preparation method thereof. The conductive silver paste composite material comprises a conductive silver paste main agent and a hydrophobic auxiliary agent, and the hydrophobic auxiliary agent comprises tetrapod-like zinc oxide whiskers and an organic hydrophobic material. In the conductive silver paste composite material, the tetrapod-like zinc oxide whiskers are added and mixed with the organic hydrophobic material, so that the conductive silver paste composite material can be endowed with super-hydrophobic performance, and when the conductive silver paste composite material is applied to the display device as a conductive protection part, the risk of water vapor invasion can be greatly reduced, and the reliability of the display device is further effectively improved.
Owner:SUZHOU CHINA STAR OPTOELECTRONICS TECH CO LTD

Real-time monitoring cell culture system and culture method thereof

The invention provides a real-time monitoring cell culture system in order to observe the internal environment of a cell culture device under the condition of maintaining the stability of a cell culturing microenvironment. The real-time monitoring cell culture system comprises an image collection device which is used for collecting images of cells in the culture system, a cell culture device whichcomprises a cell culture cavity for culturing cells and moves relatively to the image collection device, and a rotary transmission device which is used for providing power to relatively circumferential motion between the image collection device and the cell culture device. According to the technical scheme, the cell culture system enables a user to observe the status of cell culture without opening the cell culture cavity, is favorable to maintaining the balance of the cell culturing microenvironment, can be used for reducing the workload of the user for frequently opening or closing the cellculture cavity, is favorable to reducing the risk of bacterium invasion in the cell culturing process, and can be used for increasing the survival rate of cell culture.
Owner:ZHUJIANG HOSPITAL SOUTHERN MEDICAL UNIV

Power data transmission control system and method in Internet of Things environment

The invention discloses a power data transmission control system and method in an Internet of Things environment, and belongs to the technical field of Internet of Things. The implementation method comprises the following steps of: 1, establishing a secondary control system according to the intelligent terminal equipment; 2, the secondary control system collects equipment data and instructions for controlling the intelligent terminal equipment; thirdly, the secondary control system stores the device data in a structured mode and cleans the device data; fourthly, the secondary control systems achieve communication between the secondary control systems; 5, the secondary control systems collect instructions of the intelligent terminal equipment, analyze instruction targets, and complete the instructions based on communication between the secondary control systems; the secondary control systems are established on the intelligent terminal equipment, and the secondary control systems communicate with one another to complete data backup, so that the situation that normal operation of the power data transmission control system is affected by data loss caused by equipment failure or sudden power failure is avoided; the secondary control systems are in peer-to-peer communication to form a communication closed loop.
Owner:江苏贺鸿电子有限公司

Anti-intrusion detection system based on Snort engine and adopting logistic regression algorithm

The invention discloses an anti-intrusion detection system based on a Snort engine and adopting a logistic regression algorithm. The anti-intrusion detection system comprises a preprocessing module, a detection module, an alarm module, a rule generation module and a rule base, the preprocessing module preprocesses the data packet and sends a preprocessing result to the detection module; the detection module identifies and distinguishes the preprocessing result, and sends the abnormal data packet marked with the feature tag to a rule base for matching judgment; the rule base performs matching judgment on the abnormal data packets marked with the feature tags, sends a matching judgment result to an alarm module, and sends the abnormal data packets which are not successfully matched and marked with the feature tags to a rule generation module; the alarm module gives an alarm according to a matching judgment result; and the rule generation module extracts and converts the abnormal data packets which are not successfully matched and marked with the feature tags to generate new rules, and stores the new rules in a rule base, so that the risk of network intrusion is reduced, and the security of network protection is improved.
Owner:广西电网有限责任公司桂林供电局

Pressure Stabilization Technology for Improving the Cementing Quality of High Temperature and High Pressure Wells

The invention discloses a pressure stabilization process for improving the cementing quality of high-temperature and high-pressure wells. The pressure stabilization process mainly includes the following two steps: on the one hand, according to the predicted or actually measured formation pressure, determine a reasonable weighted pre-fluid (flush fluid, spacer fluid) to achieve the purpose of balancing the formation pressure; on the other hand, double-setting or multi-setting cement slurry column structure is adopted, the cement slurry is continuously sealed, and different initial setting times are designed for the head and tail slurry to determine a reasonable cement slurry column structure . The invention can reduce the risk of formation fluid invasion and improve the cementing quality, and the pressure stabilization process can be widely used in various petroleum exploration and development fields.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Low-cost Internet-of-Things security protection method and terminal equipment

The invention relates to the field of network information security, in particular to a low-cost Internet-of-Things security protection method and terminal equipment. The system comprises an internal processing module, an external processing module and a data exchange module, wherein the internal processing module, the external processing module and the data exchange module adopt pin structures and are combined in a splicing manner, the data exchange module is located between the internal data module and the external data module, and a data exchange node is established between an internal network and an external network; the three modules are provided with independent CPUs and do not interfere with one another during operation; and the data exchange module is provided with double data channels. Terminal equipment adopts a redundant extensible splicing structure, physical isolation and software verification are combined to ensure the security of internal and external network data transmission, and meanwhile, a distributed double-blockchain encryption technology is innovatively proposed to record network security intrusion information and share the information to other nodes in the network, so that the risk that the whole network is intruded is reduced.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD SUQIAN POWER SUPPLY BRANCH +2

Environmental-protection ship ballast water treatment system

The invention relates to an environmental-protection ship ballast water treatment system, which comprises an afterpeak ballast water tank, a filtering electrolysis device, a ballast water total pipe,a stripping water total pipe, a fire fighting total pipe, a ballast stripping jet pump, a stripping water total pipe, a ballast stripping release pipe, an electrolysis water injection pipe, a ballastwater release pipe, a ballast release flow meter, a ballast conveying pipe, a ballast self-priming pipe, a ballast self-priming pump, and a ballast seawater box. According to the present invention, the environmental-protection ship ballast water treatment system has a simple and reasonable structure, can meet the loading and discharging of ballast water according to the regional requirements, andcan easily achieve the environmental protection and stable operation of ship.
Owner:JIANGSU YANGZI XINFU SHIPBUILDING CO LTD

An improved pbft consensus method suitable for the Internet of Vehicles environment

The invention relates to an improved PBFT consensus method suitable for the Internet of Vehicles environment. Node identities are divided into four types, and node identities are processed in combination with a node identity verification and change mechanism; the node credit reward and punishment mechanism is adopted and GMM clustering is used to distinguish the nodes into According to the different grades, the node rights are given according to the grade; the number of different types of nodes in each area and the credit grade are combined to determine the candidate nodes of the area, and the voting of different weights is carried out according to the node type to determine the representative nodes of the area, and the unsuccessful nodes form the standby area representative nodes; The scope determines the multi-regional or intra-regional consensus mechanism. The intra-regional consensus mechanism randomly selects the master node from the nodes with the highest credit rating in the region; the multi-region consensus mechanism is composed of multiple regional representative nodes. The master node group competes to build blocks, and the execution is simplified and consistent Sexual agreement reached a consensus. The invention can tolerate a certain number of malicious node intrusion attacks, effectively eliminate malicious nodes and reduce transaction delay.
Owner:ZHEJIANG SHUREN UNIV

Bioelectrochemical device and method for mineralizing and degrading organic chlorine

The invention discloses a bioelectrochemical device for mineralization degradation of organochlorine, which comprises a bioelectrochemical reaction chamber with a cavity, a constant potential controller, two working electrodes, a counter electrode and a reference electrode, and organochlorine sewage is inoculated into the bioelectrochemical reaction chamber; the constant potential controller is used for providing constant potential; the two working electrodes are respectively a biological anode and a biological cathode; the biological anode, the biological cathode, the counter electrode and the reference electrode are arranged in the biological electrochemical reaction chamber at intervals and are electrically connected with the constant potential controller through wires respectively. According to the bioelectrochemical device for mineralizing and degrading the organic chlorine, the biological cathode and the biological anode are constructed by providing different constant potentials, and functional microorganisms in dechlorination and mineralization stages for degrading the organic chlorine are spatially separated, so that directional conversion of the organic chlorine is realized, complete degradation is finally achieved, the degradation period is shortened, and the production cost is reduced. Meanwhile, the environmental risk is reduced and the cost is saved. The invention also provides a bioelectrochemical method for mineralization degradation of organic chlorine.
Owner:GUANGDONG UNIV OF TECH
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