47 results about "Domino effect" patented technology

The transmission of ATM, Internet, and satellite communications is unified through international standardized protocol embedment. Global and Local performance optimization are achieved through the combination of combinatorial, dynamic, and probabilistic programming. A simultaneous domino effect of bandwidth conservation, efficiency enhancement, reliability improvement, traffic congestion prevention, delay minimization, and speed multiplication are realized for any digital communication system, particular in Internet. With three levels of error coding in ATM cells, the loss cell recovery and bit integrity are preserved. From its mathematical roots, new combinatorial sets are systematically generated, and applications of the sets are identified. Among the applications, optimal sequences can be produced for multi-user and multi-function communication system designs. Optimality is in terms of maximum possible number of sequences with given sequence length and sequence characteristics. The results are unique and theoretically proven. By serial and parallel concatenation of error codecs, reliability of multimedia transmission can be satisfied to any desirable level. As a part of the unified transmission scheme, the acquisition and synchronization method of cascading sequences exhibits significant improvement in correlation properties and detection probabilities. A method of using block designs is demonstrated to derive, to generate, and to construct low-density parity check block codes and threshold decodable convolutional codes. An efficiency evaluation method is formulated for the combination operation of ATM, Internet, and satellites.

The invention discloses a petrochemical port area accident risk area quantitative assessment method comprising the following steps: (1) putting forward a petrochemical port area accident integrated risk area quantitative assessment mode; (2) building an improved accident probability calculation model based on an accident domino effect; (3) building an improved consequence intensity calculation model based on uncertainty analysis; and (4) getting the formation mechanism and the overall distribution characteristics of accident risk in a petrochemical port area according to the corrected accident integrated risk area quantitative assessment mode, the improved accident probability calculation model and the improved consequence intensity calculation model, and putting forward petrochemical port area accident risk control measures. By employing the method of the invention, the accuracy of accident probability calculation and consequence simulation is improved, and the guiding significance of risk assessment to risk prevention and control is enhanced.

The invention discloses a density peak clustering algorithm based on K neighbors and shared neighbors. The density peak clustering algorithm is used for solving the technical problem that an existingdensity peak clustering algorithm is poor in clustering effect. The technical scheme is to improve a DPC algorithm based on the similarity between K-neighbors and shared neighbors, wherein the attribution of each data sample point is determined by KNN distribution information and SNN shared neighbor similarity; and if more points belonging to a certain class cluster in the KNN (i) of the i exist,and the Euclidean distance between the points and the i is closer, the similarity between the two sample points is greater, and the attribution value of the sample i relative to the class cluster to which the KNN (i) belongs is greater while the probability that the sample point i is distributed to the class cluster is greater at the moment.The clustering center appears in an area with higher local density. The density peak clustering algorithm provided by the invention avoids the defect that the DPC algorithm measures the sample density and the associated distribution error similar to the domino effect generated during sample distribution, and the clustering effect is good.

The invention provides a rockburst model testing device which is composed of a main machine and a control system. The main machine is mainly composed of a base, model in-position advance and retreat oil cylinders (10), a restraining door panel (42) and bearing frames (15), wherein the model in-position advance and retreat oil cylinders are two in number and symmetrically arranged on two sides of the left a portion above the base. The bearing frames are multiple in number and arranged on the right of a portion above the base in an aligned mode and side by side. In an inner cavity which is formed by a plurality of horseshoe-shaped bearing frames, the left side is provided with a side locating beam (43), the right side is provided with side uniform-distribution pressure loaders (67), the upper portion is provided with uniform-distribution top uniform-distribution pressure loaders (16), the bottom is provided with a base board (63) used for place taking of a model, and the first bearing frame is provided with the restraining door panel part. According to the rockburst model testing device, imitation of large-size model rockburst of 100*60*40 cm can be achieved indoors, an obvious size domino effect caused by the small size of a sample is further reduced, and the rockburst phenomenon is imitated really.

The invention discloses a concrete air entraining agent and a preparation method thereof. The preparation method is as follows: proportionally adding unsaturated terpene, unsaturated fatty acid, unsaturated anhydride and initiator into a reaction kettle in parts by weight, carrying out free radical thermal polymerization and esterification reaction under a certain condition, and then carrying out saponification with alkali in water solution to obtain high polymer with certain molecular weight, wherein the molecular structure has hydrophilic carboxyl and ester group, hydrophobic long carbon aliphatic chains and cyclic carbon chain structures with certain spatially domino effect. The air-entraining agent has good composite performance with other additives, the entrained bubbles are even and small and have high durability, and for concrete projects, such as highways, railways, bridges, tunnels, water projects and the like having high requirements on durability, the air-entraining agent can improve the workability and hardened durability of concrete.

The present invention aims to provide a method for the prophylaxis or treatment of metabolic syndrome, which can discontinue the domino effect-like chain of diseases in metabolic syndrome in the upstream by suppressing infiltration of macrophage into the adipose tissues. The present invention provides a method for the prophylaxis or treatment of a metabolic syndrome, including a step of administering an AIM inhibitor to a subject.

The invention relates to a method for optimizing allocation of emergency resources in a chemical industrial park. On the basis of the traditional hazard source grading model, a hazard source risk dynamic evaluation model is established by combining characteristics of the chemical industry park and considering a domino effect of the accident and risk factors of a process flow and a grading result is obtained based on a pedigree clustering method. On the basis of the hazard source risk grade, a hazard-source-risk-grade-based multi-target optimization emergency resource allocation model is establishing by considering the rescue timeliness and economic applicability of configuration decisions. With the genetic algorithm optimization method, the multi-target emergency resource allocation modelis optimized and then a configuration strategy meeting an expected target is obtained finally. According to the invention, in order to solve some problems in emergency resource configuration optimization, a configuration optimization method with high global optimization capability is put forward. The optimization method has characteristics of having high openness, robustness, parallelism, flexibility, and globally convergence and having no special requirement on the mathematical forms of questions.

A GIS (Geographic Information System) overlay analysis-based domino accident influence probability analysis method relates to the technical field of prediction on public safety accidents and solves the technical problem about the analysis on the domino accidents in a chemical industrial area. The method starts from a danger source accident and the geological position where the danger source accident is positioned, each danger source is classified according to accident types, different accident diffusion models are built, the affected danger probability range after the accident occurs is calculated, gridding calculation is performed on a danger source research area by combining a GIS geological netting theory, an accident influence probability radius function is built, GIS overlay calculation is performed according to each element and factor of the danger source and environment parameters, an area overlay recursion calculation model is built, a peripheral affected danger source secondary accident weighting value is induced into the recursion calculation model, the weighing ratios of all danger sources are calculated in sequence in a recursion mode, and the maximal probability order that the rest multiple danger sources occur to the domino effect is finally calculated. The method provided by the invention is suitable for the influence probability analysis on the domino accidents in the chemical industrial area.

The invention relates to a quantitative regional risk calculation method of a chemical park. The method combines the characteristics of the chemical park and the traditional quantitative regional riskassessment model, the gridding method is adopted to reduce the computational complexity of the model, and the domino effect of the accident is taken into consideration. The personal risk value and social risk value of the grid center are calculated by using the risk superposition principle, and finally the personal risk value and social risk value of other regions in the grid are obtained by interpolation method and discrete method. The method of the invention has the characteristics of openness, flexibility, low computational complexity and the like.

The invention discloses a discrete island processing method for the domino effect of accidents in a chemical industrial park. On the basis of the expansion rule of the accident domino effect, an accident chain is cut off through necessary technical intervention so as to avoid unceasing expansion of the accidents. The method comprises the following steps: firstly, setting an objective function for discrete island analysis and determining the final objective of the discrete island analysis; then designing an index for representing the accident expansion capability of dangerous sources so as to analyze the closeness of interaction among accident dangerous source units and find out the most important dangerous source in the accident expansion process; and finally taking an adjustment or control enhancement measure for the important dangerous source unit so as to achieve discrete island analysis on the domino effect of the accidents in the chemical industrial park. The discrete island processing method can avoid domino effect of the accidents in the chemical industrial park in the essentially safe aspect.

The invention discloses a planar arrangement method for a marine modular LNG (Liquefied Natural Gas) receiving terminal. The method comprises the steps of 1, dividing a marine LNG receiving terminal process system into a plurality of process modules; 2, determining a safety spacing of each process module based on a regional quantitative risk analysis method; 3, proposing various feasible arrangement schemes for the marine LNG receiving station process modules in combination with an intrinsic safety design theory according to current related specifications and the safety spacing in the step 2; 4, performing investment estimation and quantitative risk analysis including a domino effect on each proposed arrangement scheme; 5, assessing whether each design scheme is in a risk acceptable standard range or not, and performing investment and risk dual-target optimization; 6, screening out the arrangement schemes subjected to the investment and risk target optimization and the arrangement schemes meeting the risk acceptable standards; and 7, performing comparative selection on the arrangement schemes in the step 6 to select out an optimal arrangement scheme for the marine LNG receiving terminal.

The present invention discloses a wireless local area network switching authentication method based on elliptic curve, and belongs to the filed of network switching authentication. The method comprises the following steps: initializing an authentication server, which includes establishing two prime number sets and one elliptic curve; initializing the access point and mobile station, which comprises calculating authentication server, establishing the common and private key pair by the base point of common and private key pair of broadcast access point and mobile station to the base point, the access point and mobile station according to the secret information transmitted by authentication server; and switching authentication, which comprises executing mutual authentication with target access point and common key of mobile station and establishing sharing key with an ECDH algorithm. The method of the invention can effectively defend all known wireless local area network attack comprising denial of service and domino effect attack, and furthermore effectively reducing the computing expenditure and transmission expenditure.

The invention belongs to the technical field of gas extraction of a coal seam with high gas and low permeability, and particularly relates to a method for improving extraction effect of a single coalseam with high gas and low permeability. According to the method, by using acoustic emission Kaiser domino effect detailed tests and results of three-dimensional engineering dimension numerical valueinversion containing structural conditions, according to recovery area stress field states, matched permeability improvement and extraction processes are designed; stress field distribution characteristics, the permeability improvement and the extraction are combined and matched to improve the extraction to gas in the coal seam. According to the method, through coal storage seam evaluation, recovery area pressure relief evaluation and extraction effect evaluation, dynamic design of extraction operation is achieved, so that a systematized extraction process is formed.

The invention provides a key generating and distributing method based on a Diameter server and a system, belonging to the mobile communication filed. In order to solve the problems of the prior art of the unsafe distribution of the key of a movable node and the high fee, the invention provides a key generating and distributing method based on a Diameter server. The method comprises the following steps that: an MN sends a mark of an NAR to a PAR; after receiving the mark, the PAR sends the mark of the NAR and a mark of the MN to the Diameter server; after the Diameter receives the marks, a uniform random number is firstly generated and a share key is generated according to the uniform random number; the Diameter server sends the share key to the NAR and sends the uniform random number to the MN; after the MN receives the uniform random number, a share key is generated. The invention also provides a key generating and distributing system based on the Diameter server. The technical proposal adopted the invention avoids the domino effect and improves the security of the share key.

The invention discloses an evacuation path optimization method based on dust explosion domino disaster-causing risks, belonging to the technical field of path optimization. According to the method, FreeFta software is used for constructing an accident tree of dust explosion of a dangerous source; on the basis of obtaining five conditional probabilities of the dust explosion pentagon; the possibility F of dust explosion of the dangerous source is calculated by using FreeFta software; then, DESC software is used for simulating disaster-causing consequences of dust explosion under the domino effect; a dust explosion disaster-causing result, namely overpressure distribution, under a domino effect is obtained, the severity S of the dust explosion disaster-causing result is calculated by usinga Probit model, finally a quantitative risk value is obtained by using a risk model, and a path with a smaller risk is selected by comparing the risk to achieve the purpose of optimizing an evacuationpath. According to the method, the risk that escape people face secondary dust explosion damage is reduced, and the blank of evacuation path optimization under continuous disasters in dust explosionis effectively filled up.

A stackable support system and method are disclosed to increase the final contact area of an expanding lock component by stacking one ring on top of another such that one ring acts as an actuator for the one beneath it. As a body lands inside a receptacle, e.g. a narrow cylinder lands inside a larger cylinder, the components or rings expand in a domino effect, resulting in a greater contact between the body and receptacle than would occur if there was only one component or ring. The stackable support system includes a number of expandable lock rings which stack on top of each other. These rings, when expanded, steadily increase in diameter, resulting in an overall larger surface on the bottom of the support system than could have been achieved with one ring.

The invention discloses a port oil product tank area personal risk analysis method based on multiple domino effects, and the method comprises the steps: firstly analyzing an initial accident of a tankarea, calculating a damage range, then calculating the comprehensive probability of the multiple domino effects of the tank area, finally calculating a personal risk value, and drawing a personal risk contour map. According to the invention, multiple domino effect analysis can be carried out on port oil tank field accidents, multiple chain accidents can be scientifically, comprehensively and effectively analyzed, and scientific and comprehensive countermeasure protection measures can be formulated; and moreover, the domino effect can be quantitatively analyzed, the personal risk can be analyzed and calculated according to the domino effect of the tank field, and the calculated personal risk is more accurate.

The invention relates to single-phase asynchronous motor in high power factor and efficiency and low wastage of electric energy specially. Based on basic physics: direction of induced current-Chen's law, second law of current direction, principle for releasing induced electromotive force in multiplying factor, self current feed back circuit is built in stator. Thus, induced current is phase shifted 180 degrees. The induced current and original AC current are in same direction and changed in-phase so as to form domino effect in alternating electromagnetic field, reduce current drain and input current. Comparing with prior art, the invention saves electrical energy more than 50%. The invention is applicable to air-condition, refrigerators electrical household appliances, and general electric tools in single phase.

The invention relates to the field of engineering risk assessment. The invention discloses a domino effect-based coal gasification device risk probability calculation method. A hierarchical evaluationindex system comprising four first-level indexes and eleven second-level indexes is built, and a fuzzy analytic hierarchy process is used for evaluating the expansion risk of the domino accident of the coal gasification device; the expansion risk is divided into three levels, parameter ranges corresponding to different secondary indexes are determined, different index actual values are inputted to obtain the expansion risk, a conditional probability table in the Bayesian network is updated on the basis of the expansion probability, and finally the domino risk probability of the region is obtained. According to the method, meteorological factors, safety protection measures and expanded device characteristics except physical factors are comprehensively considered, so that the reliability and practicability of a risk probability assessment result are improved, the safety defense work is correctly guided, and the occurrence rate of domino accidents in the chemical industry park is reduced.

The invention discloses a distilling and testing method for 2-ethylhexene aldehyde in making polyvinyl butyral resin. It could test the content of 2-ethylhexene aldehyde and gains the optical feature of PVB film. It could conquer the air bubble caused by qualm domino effect and degradation with aging the vehicle windshield.

The invention discloses a system and a method for saving and restoring a process checkpoint in a multi-task environment. The system comprises a task process unit, a coordinator process module, a communication monitoring module, a blocking area module, a checkpoint module and a recovery line module, the coordinator process module is connected with the communication monitoring module, the communication monitoring module is connected with the blocking area module to form a cycle, the coordinator process module is connected to the task process unit respectively through the checkpoint module and the recovery line module or directly connected to the task process unit, and the task process unit is connected with the communication monitoring module to save and restore the process checkpoint in the multi-task environment. The method includes the steps: A, forming the checkpoint; B, restoring the checkpoint in failure. The problems of domino effects, live-lock and the like are solved, a local blocking consistency protocol is provided, a traditional blocking protocol is optimized, checkpoint making efficiency is improved, expenditure is decreased, and process states are consistent.

The invention discloses a continuous collapsing type detachment method for a multi-span elevated bridge. The continuous collapsing type detachment method comprises the following steps of S1, setting of cut position and cut depth: selecting a cut position on a bridge body, wherein the distance between an edge pier and the adjacent cut position and the distance between the two adjacent cut positions are greater than the distance between the two adjacent bridge piers; cutting the bridge body along the cut position, wherein the cut depth shall be capable of maintaining the stability of the bridge body under the actions of self weight, construction load and live load; S2, arrangement of an impact system and a traction system: arranging the impact system on the edge pier of one side of the bridge, and arranging the traction system on the edge pier along the impact direction; S3, impacting and traction: starting the impact system to impact the edge pier, using the traction system to perform traction on the edge pier, enabling the edge pier to collapse, and enabling the upper bridge body to collapse under the action of self gravity and apply impact force to the adjacent bridge piers to form domino effect, so as to realize the continuous collapsing type bridge detachment. The continuous collapsing type detachment method has the advantages that the safety and stability are realized, the environment-friendly effect of construction is realized, the technical operability is strong, and the high-efficiency and economic effects of construction are realized.

The invention discloses a dangerous chemical domino accident emergency material demand quantity prediction method, and belongs to the technical field of resource scheduling. The prediction method disclosed by the invention comprises the steps of determining a potential domino accident chain, calculating the accident occurrence probability of each device in a domino accident scenario, establishing a generality and individuality based emergency resource classification method and a corresponding demand quantity estimation model, and estimating the demand quantity of fire-fighting emergency resources in a typical domino accident case by using the provided estimation model. A method of combining theories and living examples is adopted in the invention. It is indicated by case analysis that the actual dispatching quantity is obviously higher compared with theoretical demand quantity. The emergency decision-makers are easy to blindly judge the emergency resource demand quantity in the domino effect accident scenario. The emergency resource demand quantity estimation method disclosed by the invention can provide more precise emergency decision-making support for an emergency response department.

The invention provides a password authentication method, a password authentication device and a terminal, and solves the problem that remembering of a password is troublesome. The method comprises the steps of displaying at least one domino array on a screen, wherein the domino array is formed by arranging a plurality of slidable blocks in a domino way; receiving the operation information of the domino array, and triggering the blocks in the domino array to generate a domino effect; generating password authentication information according to the sliding information of the block in the domino effect; and verifying the password authentication information. A user does not need to remember either a path or a keyboard code, triggers the domino effect to generate the password authentication information after the blocks in the domino array are triggered, and then the password authentication information is verified, so that the problem that remembering of the password is troublesome can be solved.

The invention provides a honeycomb flap resistance type vertical-axis wind generator. The honeycomb flap resistance type vertical-axis wind generator solves the problem that a pure resistance type vertical-axis generator is still at a small-size stage. The honeycomb flap resistance type vertical-axis wind generator comprises papilionaceous wind bearing frameworks, and is characterized in that the papilionaceous wind bearing frameworks are evenly distributed on a rotary sleeve, the rotary sleeve is fixedly arranged on a rotary sleeve shaft, and the rotary sleeve shaft is vertically and fixedly arranged on the upper portion of a tower; honeycomb type horizontal flap frameworks are fixedly arranged on the papilionaceous wind bearing frameworks, and each polygon of the honeycomb type horizontal flap frameworks is provided with a limiting boss and a horizontal flap in a fixing mode. The honeycomb flap resistance type vertical-axis wind generator has the advantages that multiple flaps solve the problems of jamming and dead points of a single flap caused by freezing and stiction caused by climate, environment and other factors, a domino effect will happen as long as a small number of flaps can work, and all the flaps are driven to work.

The invention discloses a method for quantitative assessment of accident risk areas in petrochemical port areas, which includes the following steps: (1) Proposing a quantitative assessment model for comprehensive accident risk areas in petrochemical port areas; (2) Establishing an improved accident probability calculation model based on the accident domino effect; (3) Establish an improved consequence intensity calculation model based on uncertainty analysis; (4) Obtain the accident risk in the petrochemical port area based on the revised accident comprehensive risk area quantitative assessment model, the improved accident probability calculation model and the improved consequence intensity calculation model. The formation mechanism and overall distribution characteristics are analyzed, and measures to control accident risks in petrochemical port areas are proposed. The invention improves the accuracy of accident probability calculation and consequence simulation, and helps to enhance the guiding significance of risk assessment for risk prevention and control work.

The invention relates to a real-time early warning method and device based on AIOT and an enterprise safety index; the method comprises the steps: obtaining the distribution image data of goods on a storage shelf, calculating the uniformity of the goods, calculating the shaking degree of the goods, and calculating the instability of the goods according to the obtained shaking degree of the goods at different moments; then acquiring the danger degree distribution of all the goods on the goods shelf by combining the uniformity of the goods; processing the danger degree distribution of the goods to obtain danger sources and association weights among the different danger sources; calculating the danger level of the goods on the current shelf in combination with the working danger level of the working vehicle; acquiring the final goods shelf danger degree in combination with the goods shelf accident degree, and performing real-time alarming on operation vehicles surrounding the goods shelf. According to the invention, serious consequences caused by domino effect or superposition of risk factors at different moments and in different places can be found, and the risk early warning capability is stronger and more reliable.

The invention provides a hydraulic power generation system, relates to hydraulic power generation equipment, and provides the hydraulic power generation system capable of controllably changing the water current direction and flow in engineering technology methods such as a siphon principle, a gravity principle and a domino effect. The hydraulic power generation system comprises a water source, n levels of U-shaped pipes, a water turbine, a power generation machine, and an electricity transmission and control system. A water inlet of the first level of the U-shaped pipe is arranged 2 m below the water surface of the water source, and the diameter of a water inlet section of the first level of the U-shaped pipe is larger than that of a water outlet section of the first level of the U-shaped pipe. The diameter of the water inlet section of the second level of the U-shaped pipe is smaller than that of the water outlet section of the second level of the U-shaped pipe. Likewise, the n levels of the U-shaped pipes are sequentially connected, at least one level of the U-shaped pipe is provided with a water filling hole including a safe pressure relief valve. The water turbine is arranged in a water outlet section or a water outlet pipe of the nth level of the U-shaped pipe. The power generation machine is connected with the water turbine. The electricity transmission and control system is connected with the water turbine and the power generation machine. The number n of the levels of the U-shaped pipes is larger than or equal to 2.

A Sound-responsive Repeater Device, System, and Method. The device can be programmed to recognize audible sounds and then responsively trigger an action. The triggered actions are local visual and audible alerts, such as flashing lights and audible sirens or beeps. Each device may be capable of recognizing the unique alert tone of another device so that each device will trigger on the audible alert being generated by another device without the need for user programming. This will create a “domino effect” of cascading alerts from device to device. Each device will have onboard backup power, as well as at least one removeable flashlight that will provide a user with emergency lighting at each device, and the ability to take a flashlight with them in order to escape the building. There will be versions of the device that interconnect with conventional Home Automation gateways, either via conventional Home Automation communications protocol (e.g. zigbee, zwave, etc.), or by WiFi. These interconnected devices should not only be able to generate triggers for the HA gateway, but they should also be able to receive Home Automation triggers from the gateway. Receipt of these triggers should generate audible and / or visual alerts at the devices, depending upon their programming. Each device can be converted from a non-interconnected to an interconnected mode by exchanging a detachable module, such as the flashlight module, with an interconnectable module.