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54results about How to "Avoid backtracking" patented technology
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Method for the creation of sequences for testing software
InactiveUS20050223295A1Reduce error rateReduce expenditureSoftware testing/debuggingTesting softwareTest case generator
A method is provided for creating sequences for testing software created from data flow models and subjected to automatic test conditions by a data processing device and an executable test case generator software, whereby a test plan made up of individual test cases is generated by the test case generator software for the software to be tested. For each model block, test-relevant algorithms are implemented the form of a test case algorithm and a backward follow-up algorithm. In each test case, a value range for each of its input signals is assigned to a model block, by the test case algorithm. Each of such value ranges is followed up by means of the backward follow-up algorithm, in the system to be tested, through the individual blocks, up to the inputs of the system to be tested, and the results are checked and stored in memory.
Owner:IAV INGGES AUTO & VERKEHR
Method, system, apparatus and storage medium for isolating user identity information
ActiveCN109005186ADon't worry about leakingAvoid the possibility of passive disclosureKey distribution for secure communicationUser identity/authority verificationUser privacyBlockchain
The invention discloses a method, a system, an apparatus and a storage medium for isolating user identity information, belonging to the technical field of block chains. The method comprises the following steps: a user generates a public key and a private key through a block chain, the user's public key and user's identity information are stored in the block chain; the block chain generates a plurality of different account IDs for the same user; the user registers on the application through the account ID. The invention also includes the corresponding system, apparatus and storage media, in view of the problem of user information disclosure, the invention can protect the privacy of the user and prevent the privacy of the user from being disclosed.
Owner:苏州交链科技有限公司 +1
Route prefix processing, lookup, adding and deleting method
The invention provides a route prefix processing, lookup, adding and deleting method. A multi-way Trie tree is utilized to artfully design a Trie node data structure, and the technical problems that the traditional routing table realization method can not satisfy the quick route lookup requirement, the memory access times are reduced, the cost of construction is high and the use efficiency is low can be solved by a prefix list item storage data structure and algorithm, a high-speed longest route prefix lookup method, a quick route prefix increasing method and a quick route prefix deleting method. The route prefix processing, lookup, adding and deleting method has the advantages of high lookup speed, high update speed and good use benefit.
Owner:IPLOOK NETWORKS CO LTD
Online natural frequency detection system
The invention discloses an online natural frequency detection system, which at least comprises a signal acquisition unit, a sensor unit and a data processing unit, wherein the signal acquisition unitacquires time domain signals; the sensor unit is used for transmitting signals acquired by the signal acquisition unit and the sensor unit is connected with the signal acquisition unit; and the data processing unit is used for processing the acquired signals. In view of a modal intensive condition existing in actual test, an intensive mode is extracted independently and is indexed according to a frequency value. When pretest is carried out on a workpiece, a program finds out multiple peaks appear in a detection range, the section of frequency response function amplitude curve is extracted, andeach natural frequency in the section of curve is labeled. In the case of test, according to the label, the one-order natural frequency value is fixedly extracted.
Owner:DALIAN JIAOTONG UNIVERSITY
Methods and systems for dynamic scan compression
ActiveUS20070162617A1Reduce the amount requiredLittle dataCharacter and pattern recognitionMultiple digital computer combinationsTelecommunications linkCommunication link
A method for compressing data includes transmitting a requested compression factor such as a quality factor known in JPEG compression, to a scanner or like peripheral device. The type of communication link between the scanner or like device and a host computer is identified, and based on the communication link type, the requested compression factor is altered to generate a new compression factor subsequently used to compress the data. The amount of buffer, such as scan buffer, used by the scanner or peripheral device may also be used to alter the compression factor prior to compression.
Owner:LEXMARK INT INC +1
System and method for demonstrating the correctness of an execution trace in concurrent processing environments
InactiveUS8413122B2Avoid backtrackingError detection/correctionSpecific program execution arrangementsGeneral purposeProgram trace
Since multi-core processors have become the standard architecture for general purpose machines, programmers are required to write software optimized for parallelism. Verification of correctness is an important issue for parallel code because of its complexity. There are still tools missing that provide verification for complex code, such as testing the execution of code provides. Consequently, described herein are systems and methods to evaluate the correctness of program traces. Furthermore, the systems and methods described herein do not demand excessive computational requirements and the size of the program trace being evaluated increases.
Owner:GLOBALFOUNDRIES INC
Storage tank VOCs emission low-pressure gas system safety device
ActiveCN110143379AReduce big breathEmission reductionLarge containersFire rescueFire riskSystem safety
The invention relates to the technical field of normal-pressure and low-pressure storage tank VOCs collection and emission and discloses a storage tank VOCs emission low-pressure gas system safety device. The device comprises a storage tank group for multiple types of materials, emission equipment, a torch pipe network, a water-sealed tank, a gas tank and a fire tank. The safe and environment-friendly storage tank VOCs emission low-pressure gas system is designed by the invention, and the fire risk of storage tanks is reduced; and meanwhile, treatment of VOCs of the storage tanks for the multiple types of materials is further achieved.
Owner:CHINA PETROLEUM & CHEM CORP +1
Flue gas desulfurization equipment
ActiveCN106016322AAvoid backtrackingSolve problems that cannot be fully isolatedEmission preventionChimneysFlueProcess engineering
The invention discloses flue gas desulfurization equipment. The flue gas desulfurization equipment comprises an absorption tower (10) and a first flue (11) connected to the absorption tower (10). A first induced draft fan (12) of which the outlet faces the absorption tower (10) is arranged on the first flue (11), a first inlet isolation door (13) positioned at the inlet of the first induced draft fan (12), and a first outlet isolation door (14) positioned at the outlet of the first induced draft fan (12) are also arranged on the first flue (11), a first exhaust opening is arranged between the outlet of the first induced draft fan (12) and the first outlet isolation door (14), and the first exhaust opening is connected with a suction device used for sucking flue gas at the outlet of the first induced draft fan (12). The flue gas desulfurization equipment can solve the problem that the induced draft fan cannot be completely isolated, and thus flue gas reversely flees at the outlet.
Owner:CHINA SHENHUA ENERGY CO LTD +2
Coal gangue circulating fluidized bed boiler
InactiveCN103322557AReduce heat lossGood separation effectFluidized bed combustionApparatus for fluidised bed combustionCoal gangueCirculating fluidized bed boiler
The invention discloses a coal gangue circulating fluidized bed boiler, and relates to a circulating fluidized bed boiler which can be used for solving the problems that existing coal gangue circulating fluidized bed boiler is higher in ash fusion point of fuel, unstable in fuel and inadequate in fuel combustion, the bed layer temperature cannot be ensured due to water cooling and gas cooling cyclone separators adopted, and the return device uses natural circulation by primary air which affects stable operation of the boiler. The boiler comprises a hearth, a water cooling air chamber, a cyclone separator, a return device and a return Roots blower, wherein the cyclone separator is communicated to the upper side wall of the hearth, insulating rock wool is arranged on the outer wall of a separator main body, an aluminum silicate insulating cotton plate, an insulating pouring material layer and a wear-resisting pouring material layer are sequentially arranged on the inner wall of the separator main body, an exhaust gas outlet cylinder of the cyclone separator is fixedly connected to an upper outlet of the separator main body in a deviating manner, and the lower end of the cyclone separator is communicated with the lower side wall of the hearth through the return device. The boiler provided by the invention is used for combusting coal gangue fuel.
Owner:CHINA COAL ENERGY HEILONGJIANG COAL CHEM
Clock network extraction method and device of integrated circuit and storage medium thereof
PendingCN112231998ASolve the problem of effective communicationFacilitate quality analysisCAD circuit designIntegrated circuitElectronic design
The invention discloses a clock network extraction method and device of an integrated circuit and a storage medium thereof, and belongs to the field of circuit design. The method mainly comprises thefollowing steps: determining a derivation starting point node of a clock network; and continuously and reversely deriving a previous node of the clock network to obtain a derivation process node of the clock network, and determining a derivation end node of the clock network. According to the invention, on the premise of not depending on an electronic design automation tool, a special starting point and a terminal point can be stripped clearly and accurately, the whole clock network architecture of any type can be further stripped, and the problem of backtracking is avoided, so that a design engineer can analyze and optimize the quality of the clock network conveniently, and the problem of clock effective propagation in an integrated circuit is efficiently solved.
Owner:BEIJING BAIRUI INTERNET TECH CO LTD
Laser capable of monitoring cutting state in real time
ActiveCN105846294AIncrease profitFast perforationActive medium shape and constructionLaser beam welding apparatusAcute angleFiber Bragg grating
The invention discloses a laser capable of monitoring cutting state in real time. A laser gain medium fiber core is wrapped by a glass isolation layer, a fluorescent material layer and an external wrapping layer from the inside out in sequence; the refractive index of the laser gain medium fiber core is larger than that of the glass isolation layer; the refractive index of the glass isolation layer is larger than that of the fluorescent material layer; and the refractive index of the fluorescent material layer is larger than that of the external wrapping layer. The input end and the output end of a clad fiber are provided with a first fiber Bragg grating and a second fiber Bragg grating respectively. The end surface, arranged at the side of a pump light source, of the clad fiber is provided with a tail mirror. A first convex lens and a second convex lens are sequentially arranged between the clad fiber and a transmission fiber. A semi-reflection semi-permeable wafer is arranged between the first convex lens and the second convex lens; and the semi-reflection semi-permeable wafer and the light path are arranged in a manner that an acute angle is formed therebetween. When the cutter cuts a high-reflecting material, that laser wavelength surpasses a set threshold value can be detected in real time, so that the cutter can stop quickly to prevent the laser from returning in the original path; and response time is short due to light speed.
Owner:SUZHOU LEAD LASER TECH
Automatic ecological fish catching system
The invention discloses an automatic ecological fish catching system comprising at least one fish catching unit. Each fish catching unit consists of a fishing net, a guiding wall, a guiding chamber, and a fish basket group arranged at the outlet of the guiding chamber; and the guiding wall arranged at the inlet of the guiding chamber is in contact with the wall surface at one side of the guiding chamber and cooperates with the opposite wall surface at the other side of the guiding chamber, so that the distance between the guiding wall from the outside of the guiding chamber to the inside of the guiding chamber and the opposite wall surface at the other side of the guiding chamber decreases gradually until the guiding chamber inlet only accommodating a fish body is formed. The fish gasket group is arranged at the outlet of the guiding chamber. One side of the fishing net is connected with the guiding wall; and the other side cooperates with an extending zone of the wall surface of one side, far away from the fish basket group, of the guiding chamber to form a fish inlet. On the basis of the design, habits of the fish are utilized fully; the fish can enter the fish basket autonomously without any manual operation, so that the personal safety of the fish catching staff can be protected; and thus the fish catching security is improved and automatic fish catching is realized.
Owner:WUXI WEALTH ANCIENT CANAL HOTEL CO LTD
Block chain data hidden transmission method supporting dynamic label
PendingCN114567428AAvoid backtrackingStrong anonymityKey distribution for secure communicationClimate change adaptationHidden dataIp address
The invention relates to a block chain data hidden transmission method supporting a dynamic label, and belongs to the technical field of block chain data transmission. According to the method, the block chain network is adopted to replace a traditional network, the sender and the receiver realize hidden data transmission through transactions in the block chain network without using own IP addresses, an attacker is prevented from tracing the identities of the sender and the receiver through the IP addresses, and the anonymity is high. Meanwhile, the sending address and the receiving address of the special transaction are randomly generated one-time addresses, the two parties participating in data hidden transmission screen the special transaction through the variable labels, the enemy cannot recognize the special transaction according to the account number characteristics, and the concealment is high.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Safe collection method for volatile organic compounds (VOCs) in storage tanks
InactiveCN110155551AReduce big breathReduce emissionsLarge containersVolatile organic compoundEngineering
The invention relates to the technical field of safe collection of volatile organic compounds (VOCs) in normal pressure and low pressure storage tanks, and discloses a safe collection method for VOCsin storage tanks. The method comprises the steps of classified collection of the VOCs of storage tank groups of various materials, communication treatment of the VOCs of the storage tanks of the sameor similar materials, nitrogen sealing measure treatment for safety control of the storage tank groups of the various materials, emergency measure treatment, and discharging of the VOCs of the storagetank groups of the various materials. According to the method, not only is the fire risk of the storage tanks significantly reduced, but also the gas phase of the storage tanks can be remotely cut off in case of an accident so that the safety of the storage tanks can be guaranteed. Meanwhile, the method achieves the VOCs treatment of the various material storage tanks.
Owner:CHINA PETROLEUM & CHEM CORP +1
Intelligent mouse trapping cage
ActiveCN111713484AAvoid backtrackingRealize the temptationAnimal trapsElectric machineryStructural engineering
The invention provides an intelligent mouse trapping cage. The intelligent mouse trapping cage comprises a mouse cage mechanism, a knocking and trapping mechanism, a clamping and trapping mechanism and a collecting mechanism, wherein the mouse cage mechanism comprises a mouse cage box, a glass window, a ventilation port, a slope plate and a drawer; the knocking and trapping mechanism comprises a bottom plate, a counterweight mechanism and a knocking mechanism; the knocking mechanism is used for knocking a mouse; the counterweight mechanism is used for applying an impact force to the knocking mechanism; the clamping and trapping mechanism comprises a belt motor, a belt wheel, a screw rod and a slide block plate; the belt motor is fixedly mounted on a baffle plate on the inner side of the mouse cage box; a motor shaft of the belt motor is fixedly connected with the belt wheel; the rear end face of the slide block plate is fixedly connected with the baffle plate on the inner side of the mouse cage box; the screw rod is in thread fit with a thread on the slide block plate; the belt wheel is in rolling fit with the screw rod through a belt; the clamping and trapping mechanism is used for clamping the mouse; the collecting mechanism is fixedly mounted on the upper end face of the slope plate; and the collecting mechanism is used for cleaning the mouse sliding down from the slope plate.
Owner:西安天纵有害生物防治有限公司
Composite oil-displacing agent for improving recovery efficiency as well as preparation method and application of composite oil-displacing agent
ActiveCN113621359AImprove utilization efficiencySuitable supercritical densityFluid removalDrilling compositionCyclopenteneActive agent
The invention discloses a composite oil-displacement agent for improving the recovery efficiency and a preparation method and application thereof, and belongs to the technical field of carbon dioxide displacement. The composite oil-displacing agent is obtained by mixing supercritical carbon dioxide and a surfactant according to a weight ratio of (100-1000): 1, the preparation method of the surfactant comprises the following steps: in formic acid, reacting a first monomer with formaldehyde to obtain a first reactant; reacting a second monomer with acyl chloride to obtain a second reactant; in the presence of an initiator, carrying out polymerization reaction on the first reactant and the second reactant to obtain the surfactant, wherein the first monomer is selected from at least one of 3-phenyl-4-pentene-1-amine, 4-pentene-1-amine, 4-methyl-pentene-1-amine and 2-amino-4-pentenoic acid, the second monomer is at least one of 1-butene, 1-pentene, 1-hexene and cyclopentene.
Owner:DESHI ENERGY TECH GRP CO LTD +1
Oil-displacing agent for supercritical carbon dioxide displacement as well as preparation method and application of oil-displacing agent
ActiveCN113929806AImprove utilization efficiencyAvoid the problem of not being able to mix effectivelyDrilling compositionBulk chemical productionProcess engineeringCarbon dioxide flooding
The invention discloses an oil-displacing agent for supercritical carbon dioxide displacement as well as a preparation method and application thereof, belonging to the field of carbon dioxide displacement oil extraction. The preparation method of the oil-displacing agent comprises the following steps: subjecting a first monomer to reacting with a second monomer to generate a first intermediate; subjecting the first intermediate to reacting with a third monomer to generate a second intermediate; subjecting a fourth monomer to reacting with a fifth monomer to obtain a third intermediate; and polymerizing the second intermediate and the third intermediate to obtain the oil-displacing agent.
Owner:SHANDONG DESHI CHEM IND CO LTD +2
Methods and systems for dynamic scan compression
ActiveUS7957598B2Avoid backtrackingCharacter and pattern recognitionMultiple digital computer combinationsTelecommunications linkCommunication link
Owner:LEXMARK INT INC +1
A method, system, device and storage medium for isolating user identity information
ActiveCN109005186BDon't worry about leakingAvoid the possibility of passive disclosureKey distribution for secure communicationUser identity/authority verificationUser privacyEngineering
Owner:苏州交链科技有限公司 +1
Laser for laser cutting machine
ActiveCN105846293AAvoid backtrackingIncrease profitActive medium shape and constructionLaser beam welding apparatusLow-pass filterFiber Bragg grating
The invention discloses a laser for a laser cutting machine. A clad fiber comprises a laser gain medium fiber core arranged in the middle. The laser gain medium fiber core is wrapped by a glass isolating layer, a fluorescent material layer and an outer cladding layer from the inside out in sequence. The input end and the output end of the clad fiber are provided with a first fiber Bragg grating and a second fiber Bragg grating respectively; the end surface, arranged at the side of a pump light source, of the clad fiber is provided with a tail mirror; a first lens and a second lens are arranged between the clad fiber and a transmission fiber in sequence; a low-pass filter mirror and a focusing mirror are sequentially arranged right under a semi-reflection semi-permeable lens from upward down; the focusing mirror receives reflection light from the semi-reflection semi-permeable lens; an imager is arranged at one side of the focusing mirror and is used for receiving light rays from the focusing mirror; and the cross section of the glass isolating layer is in D shape. Cutting speed is improved; high-power cutting can be tried, and cutting speed is fast and power redundancy is small; and laser energy can be utilized fully.
Owner:沧州领创激光科技有限公司
Pneumatic constant pressure valve
ActiveCN101929572BGood voltage stabilization effectAvoid adjustment pitfallsOperating means/releasing devices for valvesEqualizing valvesLiquid pressureConstant pressure
Owner:上海远安流体设备科技有限公司
Efficient flame retardant device
The invention provides an efficient flame retardant device. The efficient flame retardant device is installed between a gas supply end and a client side, and sequentially comprises an electronic check valve, a water type flame retardant mechanism, a dry type flame retardant mechanism and a free radical detection device in the direction from the gas supply end to the client side, and the free radical detection device and the electronic check valve are electrically connected with a controller. According to the efficient flame retardant device, the water type flame retardant mechanism and the dry type flame retardant mechanism are connected in series, lots of free radicals in tempering flames can be eliminated through the dry type flame retardant mechanism, then, cooling is conducted through the water type flame retardant mechanism, and thus, shifting of the tempering flames can be thoroughly avoided; moreover, the front end of the efficient flame retardant device is additionally provided with the free radical detection device which adopts a mode that signals of the free radicals are amplified through copper wires, and then detecting is conducted, and accordingly, the sensitivity of the free radical detection device can be improved. Through the efficient flame retardant device, the flame retardant effect can be well achieved, and the safety of the gas source end is ensured.
Owner:广东蓝新氢能源科技有限公司
A coal gangue circulating fluidized bed boiler
InactiveCN103322557BImprove separation efficiencyIncrease cycle ratioFluidized bed combustionApparatus for fluidised bed combustionCycloneAluminum silicate
The invention discloses a coal gangue circulating fluidized bed boiler, and relates to a circulating fluidized bed boiler which can be used for solving the problems that existing coal gangue circulating fluidized bed boiler is higher in ash fusion point of fuel, unstable in fuel and inadequate in fuel combustion, the bed layer temperature cannot be ensured due to water cooling and gas cooling cyclone separators adopted, and the return device uses natural circulation by primary air which affects stable operation of the boiler. The boiler comprises a hearth, a water cooling air chamber, a cyclone separator, a return device and a return Roots blower, wherein the cyclone separator is communicated to the upper side wall of the hearth, insulating rock wool is arranged on the outer wall of a separator main body, an aluminum silicate insulating cotton plate, an insulating pouring material layer and a wear-resisting pouring material layer are sequentially arranged on the inner wall of the separator main body, an exhaust gas outlet cylinder of the cyclone separator is fixedly connected to an upper outlet of the separator main body in a deviating manner, and the lower end of the cyclone separator is communicated with the lower side wall of the hearth through the return device. The boiler provided by the invention is used for combusting coal gangue fuel.
Owner:CHINA COAL ENERGY HEILONGJIANG COAL CHEM
Rectifying tower top reflux temperature adjusting system and process
PendingCN114470845AReduced reflow temperature decreasesReflux temperature maintenanceDistillation regulation/controlPipeline systemsTemperature controlReflux
The invention relates to a rectifying tower top reflux temperature adjusting system and process, the adjusting system comprises a temperature control pipe group, a reflux tank, an emptying pipeline and a pressurizing pipeline, and the pressurizing pipeline is communicated with the middle part of the emptying pipeline at the top of the reflux tank. In the process of reducing the reflux temperature, the pressure needs to be adjusted by increasing the heat bypass flow, but the reflux temperature can be increased, and at the moment, the pressure of the reflux tank at the top of the tower can be increased, the pressure of the reflux tank can be maintained and the heat bypass flow can be reduced by opening a pressurizing pipeline valve, so that the top reflux temperature of the rectifying tower is reduced, and the heat balance of the rectifying tower system is maintained; the material delivery temperature is reduced, and safe and stable operation of a production system is guaranteed; the influence of evacuation and cavitation on the top reflux pump of the rectifying tower is avoided.
Owner:SHANXI LUAN COAL BASED CLEAN ENERGY
Solar photovoltaic mosquito killing device based on photoresistance changes
InactiveCN111418566AAvoid backtrackingImprove the effect of mosquito controlPhotovoltaic supportsSolar heating energyControl mosquitoGenerating capacity
The invention provides a solar photovoltaic mosquito killing device based on photoresistance changes, and relates to the field of solar photovoltaic techniques. The solar photovoltaic mosquito killingdevice based on photoresistance changes comprises a base, wherein a rotating shaft is rotatably connected to the center of the top of the base, a bearing plate is fixedly mounted at the top end of the base, a collecting hood is placed at the top of the bearing plate, grooves are formed in the periphery of the collecting hood, a rotating disk is rotatably connected to the bottom of the collectinghood, fan blades are fixedly mounted at the top end of the rotating disk, and a mosquito killer is fixedly mounted at the center of the collecting hood. According to the solar photovoltaic mosquito killing device based on photoresistance changes, mosquitoes can be brought in the collecting hood, so that escaping of the mosquitoes can be avoided, and the mosquito killing effect is increased; and the electricity generating capacity of an electricity generation plate in unit area is increased, the electricity generation plate can incline towards one side of illumination, absorption efficiency ofsolar energy is improved, and further maintaining normal usage of the mosquito killing device is facilitated.
Owner:绍兴市秀臻新能源科技有限公司
Nitrogen rotational flow sealing heat preservation barrel for wet-type electric dust remover
PendingCN114534920AGuaranteed insulation performanceAvoid backtrackingIncreasing energy efficiencyExternal electric electrostatic seperatorEngineeringNitrogen gas
The invention belongs to the field of metallurgical and chemical equipment, and particularly discloses a nitrogen rotational flow sealing heat preservation barrel for a wet-type electric precipitator, which comprises a barrel body, an insulator communicated with the wet-type electric precipitator is arranged in the barrel body, and a nitrogen rotational flow sealing structure is arranged on the barrel body. The nitrogen rotational flow sealing structure comprises a nitrogen supplementing pipe, a nitrogen drainage pipe and a nitrogen storage cavity communicated with the nitrogen drainage pipe, the barrel body comprises a barrel body upper portion and a barrel body base, and a plurality of drainage holes allowing nitrogen to flow into the barrel body base and forming rotational flow in the barrel body base are formed in the side wall of the nitrogen storage cavity. And the rotational flow flows towards the wet-type electric dust remover. The part where nitrogen is introduced into the barrel body is improved, the nitrogen flowing state is optimized, a nitrogen curtain wall is formed in the barrel body, an insulator is isolated from the wet-type electric dust remover, and smoke in the wet-type electric dust remover is prevented from reversely flowing into the insulator, so that it is guaranteed that the insulator is not polluted, the insulation performance of the insulator is guaranteed, and safety accidents are avoided; potential safety hazards are eliminated.
Owner:CISDI INFORMATION TECH CO LTD
Flue gas desulfurization equipment
ActiveCN106016322BAvoid backtrackingSolve problems that cannot be fully isolatedEmission preventionChimneysFlue gasProcess engineering
Owner:CHINA SHENHUA ENERGY CO LTD +2
Oil displacement agent for supercritical carbon dioxide displacement and its preparation method and application
ActiveCN113929806BImprove utilization efficiencyAvoid the problem of not being able to mix effectivelyDrilling compositionBulk chemical productionCarbon dioxide floodingOrganic chemistry
The application discloses an oil displacement agent for supercritical carbon dioxide displacement and its preparation method and application, belonging to the field of carbon dioxide displacement oil recovery. The preparation method of the oil displacement agent comprises the following steps: the first monomer reacts with the second monomer to generate a first intermediate; the first intermediate reacts with the third monomer to generate a second intermediate; the fourth The monomer reacts with the fifth monomer to obtain the third intermediate; the second intermediate and the third intermediate are polymerized to obtain the oil displacement agent.
Owner:SHANDONG DESHI CHEM IND CO LTD +1
Workflow task state recovery method and device, storage medium, computing device
ActiveCN107678889BReduce complexityImprove recovery efficiencyRedundant operation error correctionEvent (computing)Backtracking
The invention discloses a recovery method and device of workflow task status, a storage medium and computing equipment. The recovery method includes: creating an event flow in a workflow task status circulation process, wherein the event flow contains a plurality of events and at least one snapshot, and each snapshot contains a set of at least partial information of the event flow at a single timepoint; and carrying out backtracking on the events in the event flow according to a newly available snapshot when an abnormality of the workflow task status occurs. Through the technical solution provided by the invention, abnormal workflow task status can highly efficiently recover for avoiding re-backtracking on the entire event flow, and event recovery efficiency is improved.
Owner:上海数据发展科技有限责任公司
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