118results about How to "Extended cycle" patented technology

The invention discloses a heart disease prediction system based on an electrocardiosignal and a large model, and relates to the field of electrocardiosignal processing, and the system is characterized in that the electrocardiosignal of a user is collected by using a heart coat, and baseline offset suppression and noise processing operation are carried out on the electrocardiosignal by using a data processing center; a variability sequence is extracted from the processed electrocardiosignal, an electrocardiograph scatter diagram is drawn according to variability, and scatter points in the scatter diagram are numbered and coded in a partitioned mode to obtain the sequence information entropy of the heart rate variability sequence; segmenting the electrocardiosignal based on the sequence information entropy and the wave crest, obtaining a waveform segment of a single cardiac pulse according to a segmentation result, inputting the waveform segment into the large medical prediction model, and outputting the characteristic change of the electrocardiosignal; and comparing the feature change with a pre-stored disease feature standard and outputting a disease prediction result. According to the method, the complex characteristics of the electrocardiosignals and the prediction capacity of the large model are combined, and the diagnosis precision and the early-stage discovery rate of heart diseases can be remarkably improved.

The invention relates to a two-stage battery residual life intelligent prediction method and system considering small samples, and belongs to the technical field of reliability engineering, and the method comprises the steps: finding a knee point based on the original data of battery capacity cycle aging, and dividing a degradation stage into two stages through the knee point; wherein the original data of the battery capacity cycle aging comprises the number of charge-discharge cycles and the corresponding actual capacity; respectively selecting independent normalized stream models as generators of the two stages, and generating training data samples; converting the training data sample which is non-normal distribution data into approximately normal distribution data to obtain a data set after data expansion; and training an RUL prediction model based on the data set after data expansion, and predicting the remaining life of the battery through the trained RUL prediction model. The method has practical application value in life analysis of battery production test, is beneficial to full life cycle test and health management of the battery, and has certain engineering application value.

The invention relates to an FPGA (Field Programmable Gate Array)-based fractional order memristor Hopfield neural network circuit implementation method, which adopts a Grunwald-Letnikov fractional order derivative definition and short-term memory principle to finish the implementation of an FPGA circuit of a fractional order memristor Hopfield model through a multi-segment linear fitting hyperbolic tangent function. The method comprises the specific steps of processing a fractional order integral and a hyperbolic tangent function, compiling through Verilog codes and simulating in Xilinx ISE. According to the method, the short-time memory principle and the resource-efficient fitting algorithm are combined, high-precision periodic and chaotic signals can be generated on the FPGA, and the method has a wide application prospect.

The invention discloses an assembly type segmented prestressed concrete tower drum structure and a construction method, the assembly type segmented prestressed concrete tower drum structure comprises a drum body formed by splicing a plurality of concrete drum sections in a segmented mode in the height direction, the diameter of the concrete drum sections is reduced in the height direction of the drum body, and the concrete drum sections are formed by splicing a plurality of prefabricated pipe pieces into a whole through bent bolts. The fabricated prestressed concrete structure is adopted, and the bearing capacity, rigidity and crack resistance of the tower drum are remarkably improved. The segmented prestress can change the prestress value gradient of the tower barrels with different heights, the performance design of the tower barrels is achieved to meet the requirements of different scenes, and the fatigue life and the service cycle of the tower barrels are prolonged. Prefabricated pipe pieces are produced in a factory in a standardized mode, prestress is tensioned, on-site overall prestress tensioning is avoided, the construction efficiency and the construction quality are improved, only embedded bolt connection needs to be completed on site, construction is convenient and fast, connection is reliable, and wide application prospects are achieved.

The invention discloses a direct coal liquefaction residue solvent extraction deliming method, refined asphalt and application, and relates to the technical field of solid waste resource treatment. According to the method, process conditions and process parameters are reasonably controlled, the thermal dissolution effect of an extraction agent and the liquefied residues is improved, a scale inhibitor composed of a multi-element alkyl organic matter, an auxiliary and coking washing oil is mixed with the extraction agent, then the ground liquefied residues are added into a material obtained through mixing, and the extraction agent and the liquefied residues are mixed uniformly. The slurry is prepared by controlling the stirring speed, the reaction temperature and the like; due to the addition of the scale inhibitor, the concentration of the residue extraction liquid is improved, and the treatment capacity and efficiency are enhanced; and a filter used for precision filtration adopts a stainless steel metal sintered filter element, so that the filter is resistant to higher temperature and pressure, the service life can be prolonged, and the stripping of viscous materials such as asphaltene in the liquefied residues is facilitated. The ultralow-ash refined asphalt prepared by the method can be used as a high-quality raw material of a high-end carbon material.

The invention discloses a kneading machine speed reducer fault time-frequency feature extraction method, which comprises the following steps: acquiring an original vibration signal of a kneading machine speed reducer, sliding on the original vibration signal by using a first sliding window, calculating a signal frequency spectrum in the first window at each sliding position, and constructing a time-frequency distribution matrix of the original vibration signal; taking data of each row of the time-frequency domain distribution matrix as a sub-signal, and carrying out sliding time domain synchronous average processing on the sub-signal, which comprises the following steps of: firstly, carrying out mean removal processing on the sub-signal, and carrying out time domain synchronous average calculation through a second sliding window on the basis of mean removal processing; and performing self-correlation operation on each sub-signal in the time frequency distribution matrix after the sliding time domain synchronous average processing, and determining the frequency of the fault pulse based on the time frequency distribution matrix after the self-correlation operation. According to the method, the accuracy and efficiency of vibration signal processing can be remarkably improved, and the method is particularly suitable for complex and variable signal environments.

The invention relates to the technical field of aero-engine welding, in particular to a welding device and method for a thick plate installation supporting point assembly. The welding device comprises a front face device and a back face device, and during front face welding and back face welding, when the flange edge is placed on the positioning assembly, the flange edge is in butt joint with a pre-placed to-be-welded supporting point welding seam to form an X groove. An X groove is subjected to pre-welding cleaning, positioned welding and backing welding through manual argon arc welding and wire filling through automatic argon arc welding, and the complete welding process is achieved. Compared with manual argon arc welding, the reasonable machining method and suitable welding parameters are adopted, the appearance quality of welding seams of automatic argon arc welding is remarkably improved, and the welding deformation control effect on the titanium alloy X-shaped groove assembly is good.

The invention relates to an equivalent modeling method and system for an impulse voltage disturbance source in a immunity test, and the method comprises the steps: building an equivalent circuit model of a static gun according to a static gun equivalent circuit in combination with SPICE simulation optimization, and in combination with the overall structure of the static gun used by a human body; the method comprises the following steps: constructing an equivalent circuit model of an electrical fast pulse train based on a circuit structure suggested by an electrical fast pulse train immunity test standard in combination with SPICE simulation optimization; a combined wave circuit is analyzed by adopting an SPICE tool, a surge combined wave generator circuit model is constructed by adopting a step voltage source on the basis of an original circuit model in combination with circuit parameters, and an impulse voltage disturbance source in an immunity test is realized based on the three models. By constructing the equivalent circuit model of the electrostatic gun, the equivalent circuit model of the electrical fast pulse train and the circuit model of the surge combination wave generator, the protection performance of the electromagnetic protection device under the surge voltage disturbance source is simulated and tested, and the anti-interference performance of protection measures is accurately predicted and evaluated.

The invention relates to the technical field of cell culture, and particularly provides an NK (Natural Killer) cell serum-free culture solution which is prepared from 24 percent by mass of traditional Chinese medicine extract and the balance of serum-free culture solution, the culture method of the NK cells comprises the following steps: adding the NK cells into a culture bottle, sampling and counting, diluting the cell density to 1 * 10 < 6 > / mL by using the serum-free culture solution of the NK cells, culturing in an incubator with the temperature of 37 DEG C and the CO2 content of 5% for 15 days, sampling and counting, circularly placing in a 326 mT magnetic field for 540 seconds and a 383 mT magnetic field for 120 seconds during culture, and keeping the two magnetic field environments at an interval of 0.5 hour. The serum-free culture device has a unique serum-free culture-magnetic field system, so that the multiplication capacity and killing capacity of the NK cells are not influenced or even improved while serum is not used.

The invention provides a low-code system for data analysis and data cleaning based on Internet of Vehicles data. The low-code system comprises a multi-protocol adapter, a user-defined analysis rule writing interface, a dragging type rule configuration interface, a data processing module, a forwarding mechanism unit, a monitoring and log tracking unit and a message labeling and fingerprint generation unit. Wherein the multi-protocol adapter is used for supporting log data acquisition of various network protocols; the user-defined analysis rule writing interface allows a user to write specific analysis logic according to a data format and a service requirement; meanwhile, for compatibility of various data codes and formats, rule templates and examples are provided to guide a user to compile analysis rules, and the user is helped to quickly position and correct problems in the analysis rules by integrating corresponding error detection and debugging tools; and a user carries out graphical operation combination input, output and analysis on rule nodes through the drag-and-drop rule configuration interface.

The invention discloses a preamble generation method, a receiving method, a system, equipment and a medium. The generation method comprises the following steps: acquiring a plurality of first short symbols and a plurality of second short symbols; the energy of the first short symbol is different from that of the second short symbol; arranging the plurality of first short symbols and the plurality of second short symbols in a staggered manner to obtain a short training sequence; a preamble is generated based on the short training sequence. The receiving method comprises the following steps: receiving lead codes, performing cross-correlation operation on adjacent first short symbols in a plurality of first short symbols in each lead code, and summing all obtained cross-correlation operation results to obtain a first value; summing the energy of all second short symbols in a plurality of second short symbols in each lead code to obtain a second value; and when the ratio of the first value to the second value is greater than a preset threshold, determining that the frame header of the signal is detected. According to the invention, the number of OFDM transmission subcarriers, the data rate signal capture success rate, and the performance and robustness of time-frequency synchronization under the condition of low signal-to-noise ratio are improved.

The invention relates to the technical field of encrypted traffic of a large-scale data set, in particular to an encrypted traffic anomaly detection method and system based on an attention mechanism. Obtaining packet data, and carrying out data preprocessing to obtain preprocessed data; constructing an auto-encoder model, wherein the auto-encoder model comprises a multi-head attention mechanism enhanced bidirectional gating cycle unit encoding layer and a self-attention mechanism enhanced bidirectional long-short-term memory network decoding layer; and carrying out encryption traffic anomaly detection on the preprocessed data by using the auto-encoder model. The multi-head attention mechanism enhanced bidirectional gating circulation unit and the self-attention mechanism enhanced bidirectional long-short-term memory network are creatively combined, so that the time sequence characteristics are effectively extracted, and the front-back relevance of the sequence data is kept. Meanwhile, model training is carried out by adopting a composite loss function containing business associated loss, and the generalization ability of the model is improved by combining cross validation and regularization technologies.

The invention provides application of ginsenoside Re carbon nanodots in the field of preparation of pharmaceutical preparations for resisting kidney cancer and / or inhibiting kidney cancer A498 cells. The ginsenoside Re carbon nanodots (Re-CDs) prepared by the invention have the characteristics of uniform particle size distribution, good water solubility, low biotoxicity, high cell membrane permeability and the like, also have good time, pH value and salt stability, and particularly have a relatively high inhibition effect on kidney cancer A498 cells and kidney cancer, whether in vitro or in vivo. Through transcriptomics detection, qPCR (quantitative polymerase chain reaction) verification, immunofluorescence detection and Western blot methods, a molecular mechanism of the Re-CDs anti-A498 cell is disclosed on the cellular level. The result shows that the Re-CDs can promote the cycle arrest and apoptosis of the A498 cells through the PI3K / AKT signal channel. The invention provides a new research strategy for anti-kidney cancer treatment based on CDs nano medicine in the future.

The utility model provides a sewage membrane filter device with automatic backwash function relates to sewage treatment equipment technical field, and this device includes filter jar body, the membrane filter subassembly of being immersed in jar body, and water inlet pipeline, water outlet pipeline and sludge discharge pipeline. Its core improvement is integrated with a set of intelligent automatic backwash system, and this system is constituted by backwash water supply pipeline, gas water collaborative flushing unit, parameter detection unit and intelligent control unit. The gas water collaborative flushing unit includes the micropore aerator of being established in the membrane subassembly below jar body bottom, is used for generating tiny air bubble to carry out physical scrubbing to membrane surface, backwash water supply pipeline is connected water outlet pipe, can pump into membrane subassembly water production side with water production reversely. Control unit is based on sensor signal such as transmembrane pressure difference, and the automatic switching and collaborative operation of intelligent control gas washing, water backwash and sludge discharge process, thereby realize efficient, energy -conserving, full -automatic membrane pollution cleaning, significantly prolong the life of membrane and reduce operation maintenance cost.

The invention discloses a single-system screw machine heat exchanger, which relates to the technical field of screw machine heat exchangers, including a base plate, a water inlet jacket, a water outlet jacket, and a gas component. A plurality of outer tubes are fixedly connected in the water inlet jacket, a plurality of inner tubes are fixedly connected in the water outlet jacket, the inner tubes have a smaller diameter than the outer tubes, the inner tubes penetrate the outer tubes at corresponding positions, one end of the inner tube away from the water inlet jacket is fixedly connected with a liquid inlet jacket, a slide rail is fixedly connected at the bottom of the base plate, support seats are fixedly connected to the outer peripheral walls of the water inlet jacket and the water outlet jacket, the support seat at the bottom of the water inlet jacket is slidably connected to the slide rail, the support seat at the bottom of the water outlet jacket is fixedly connected to the base plate, one end of the inner tube away from the water inlet jacket is sealed with the water outlet jacket, one end of the inner tube is inserted into the inner cavity of the liquid inlet jacket, and the other end of the inner tube penetrates the water inlet jacket. The invention has a simple structure, is convenient for disassembly and assembly, has a fast fluid flow rate, and has a high heat exchange efficiency.

The invention relates to the technical field of fruit tree cultivation, and particularly discloses a peach tree multi-variety grafting management method which comprises the following steps: step 1, wild hirsute peach pit cultivation and initial transplanting; step 2, grafting peaches of a first grade; step 3, transplanting and rod fixing; step 4, grafting peaches of a second grade; 5, artificially pollinating peaches of the first grade; and step 6, grafting peaches of third and fourth grades. The method has the advantages that the land utilization efficiency is improved, multiple varieties grow on the same tree, and land resources are effectively saved; fruit varieties are enriched, the requirements of the market for diversified fruits are met, and the product competitiveness is improved; 3, the picking period is prolonged: the mature periods of different varieties are staggered, and the picking and selling periods of fruits are prolonged; the ornamental value of fruit trees is increased due to coexistence of multiple varieties, and the method is suitable for sightseeing orchard construction.

The invention discloses a whole-process method for improving the thermal diffusion coefficient of a tungsten-rhenium alloy plate through rhenium segregation. The whole-process method comprises the following steps: preparing tungsten powder and rhenium powder with different particle sizes in proportion to obtain uniformly mixed powder of the tungsten powder and the rhenium powder; carrying out cold isostatic pressing on the mixed powder and sintering to prepare a sintered blank; carrying out heating rolling deformation treatment on the sintered blank; and performing high-temperature annealing treatment. According to the method, local segregation of rhenium is formed in a tungsten-rhenium alloy sintered blank by strictly controlling the sizes of the added tungsten powder and rhenium powder, after thermal deformation, rhenium segregation blocks can form anisotropic rhenium component segregation, the tungsten-rhenium alloy shows a higher thermal diffusion coefficient in the RD direction, and after high-temperature annealing, the tungsten-rhenium alloy has a higher thermal diffusion coefficient in the RD direction. The thermal diffusion coefficient in each direction can be further improved, and the tungsten-rhenium alloy plate with the high thermal diffusion coefficient is obtained.

The invention discloses a membrane separation and purification device for ethylene glycol production, and relates to the technical field of membrane separation, the membrane separation and purification device comprises a fixed pressing plate, a movable pressing plate, a plurality of layers of liquid inlet assemblies and membrane separation assemblies, and the liquid inlet assemblies and the membrane separation assemblies are alternately stacked between the fixed pressing plate and the movable pressing plate; the hollow shaft penetrates through the liquid inlet assemblies and the membrane separation assemblies which are arranged in a multi-layer stacking manner; the rotary liquid distribution mechanism is arranged in the liquid inlet area; the central vibration generating mechanism is arranged in the separation area and synchronously operates with the hollow shaft; and the plurality of edge vibration generating mechanisms are uniformly distributed in the separation area and synchronously operate with the hollow shaft. Annular vibration waves generated by the center vibration generation mechanism and radial vibration waves generated by the edge vibration generation mechanism are spread on the membrane supporting net plate and the attached separation membrane and interfere with each other, so that attached or to-be-attached pollutant particles are loosened and stripped; and the on-line and active anti-pollution capability of the device is enhanced.

The utility model relates to a take-up track transfer type pile line split air mobile charging robot system, which comprises an air track, a walking module, a movable charger, a winding gun line module, a charger side butt joint module, a winding side butt joint module, a power taking module, a charging call response system and a control processing unit, the movable charger can move along the aerial track and change the track and steer under the driving of the walking module, a winding gun line module is arranged beside each parking space, the movable charger can achieve the purpose that any parking space can be in electrical butt joint with the winding gun line module, and therefore the charging service can be provided for an electric automobile below the movable charger. The utility model relates to the field of new energy vehicle charging, eliminates the one-to-one binding relationship between a movable charger and a charging gun line, greatly improves the utilization rate of charging resources, supports reservation charging and queuing charging, can take back the charging gun line after a user pulls out a gun, and is more convenient, more efficient, cleaner and safer.

The utility model provides a tail gas treatment device of a waste gas system and relates to the technical field of waste gas treatment. The device comprises a waste gas absorption tower, a spraying mechanism is arranged in the waste gas absorption tower, an alkali liquor circulating mechanism is communicated with the spraying mechanism and the bottom of the waste gas absorption tower, a tail gas pipe is arranged at the top of the waste gas absorption tower, a fan is arranged on the tail gas pipe, and a wire mesh demister is arranged on the tail gas pipe between the fan and the waste gas absorption tower. Alkaline dropping liquid in tail gas is intercepted, so that frequent cleaning of a fan caused by the fact that the alkaline dropping liquid enters a volute of the fan is avoided.

The invention belongs to the field of separation and filtration, and particularly relates to a filtering membrane with aperture sizes in gradient arrangement and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a membrane casting solution: mixing and dissolving dimethylacetamide, polyether sulfone, polyethylene glycol and an auxiliary agent, and defoaming to obtain the membrane casting solution; (2) preparing core liquid: mixing dimethylacetamide with water to obtain the core liquid; (3) preparing a gel bath: mixing dimethylacetamide with water to obtain the gel bath; the concentration of the gel bath is smaller than that of the core liquid; and (4) preparing the filter membrane: enabling the membrane casting solution to be in contact with the core solution and the gel bath through a spinneret plate, and enabling membrane filaments to pass through the gel bath to a filament collecting tank, so as to obtain the filter membrane of which the pore sizes are arranged in a gradient manner. The pore diameter of the filtering membrane is changed from a large pore diameter on one side to a small pore diameter on the other side in a gradient manner, and the filtering membrane has high retention rate and high flux, high mechanical strength, easy cleaning and low energy consumption.

The utility model discloses a cable sheath with a wear-resistant function, which relates to the technical field of cable sheaths and is characterized in that an insulating sleeve is arranged outside a cable main body; the exterior of the insulating sleeve is sleeved with a silica gel sheath, the exterior of the silica gel sheath is provided with a sheath main body, and the exterior of the sheath main body is coated with a rubber coating. According to the utility model, the grooves and the convex grooves are connected in a sliding manner, so that the upper sheath and the lower sheath are connected, namely, the fixing holes in the upper connecting block and the lower connecting block are aligned, then the positioning pins penetrate into the fixing holes, and the positioning pins are in threaded connection through the stop blocks; the upper connecting block and the lower connecting block are fixed, then the upper sheath and the lower sheath are fixed, the upper sheath and the lower sheath can carry out wear-resistant protection on the cable body conveniently, the upper sheath and the lower sheath are made of polyurethane, and the wear resistance of the cable sheath can be improved conveniently.

The invention provides a data opening and sharing platform based on multi-modal data interaction, belongs to the field of big data processing and artificial intelligence, and realizes intelligent management, query, analysis and sharing of data by integrating natural language processing and multi-modal data processing technologies. A user is supported to carry out data interaction in various modes such as voice, text and graphical interfaces, user requirements are analyzed by utilizing a language large model, and the user experience is improved through an automatic API document generation system, a dynamic data service optimization platform and an intelligent data display and report generation system and through automatic quality auditing and problem analysis. And the accuracy and consistency of the data are improved. And a data query and analysis function driven by a natural language enables non-technical background users to easily perform data analysis. According to the multi-source heterogeneous data integration and processing technology, the problems of data islands and inconsistent data formats are solved, and seamless integration of data resources is achieved.

This invention relates to a method, device, and medium for multi-agent coverage search and task allocation path optimization. The specific method includes: scenario construction and problem description, which describes the characteristics of the task area, the attributes of agents and targets, and clarifies the area coverage search problem and the target task allocation problem; area coverage model design, which establishes a minimum task time model objective function and constraints, and then solves the area coverage model; and task allocation strategy and path planning algorithm, which, considering agent speed and target attributes, combines a greedy strategy and a genetic algorithm to allocate target exploration tasks to agents, optimize target exploration paths, and reduce total task time. Compared with existing technologies, this invention improves the efficiency of marine area search and target exploration through multi-agent cooperation, achieving full area coverage search and accurate target exploration.

The invention provides an implantable pressure-measuring infusion drainage device and system.The implantable pressure-measuring infusion drainage device comprises a liquid storage bag, a functional catheter module and a central connector, the central connector is used for fixedly connecting the liquid storage bag with the functional catheter module, one end of the central connector is in sealed connection with the opening end of the liquid storage bag, and the other end of the central connector is fixedly connected with the functional catheter module; the functional catheter module comprises a tubular pressure measuring structure and an infusion tube; the functional end of the tubular pressure measuring structure is used for being placed in a target area in a living body to measure the pressure of the target area; the functional end of the infusion tube is used for being placed in a target area in a living body, and liquid in the liquid storage bag is guided into the target area and / or liquid in the target area is guided into the liquid storage bag; and a circuit module is also arranged in the central connector and is used for supplying power to the tubular pressure measuring structure and / or realizing communication between the tubular pressure measuring structure and an external control end.

The invention relates to the technical field of hemostasis management, in particular to a multi-robot hemostasis management system based on task scheduling, which comprises a hemostasis physiological monitoring module, a compression state time sequence module, a hemostasis task scheduling module, a release path planning module and a multi-robot collaboration module. Multi-type physiological monitoring, identity labels, position changes and operation nodes are subjected to linkage collection, the whole-process tracking ability of the sick and wounded is enhanced through time and space identification, the compression period and operation allocation are optimized through interaction judgment of physiological monitoring and path information, intelligent response of task sorting and execution subject selection is achieved, and the system is high in practicability and easy to popularize. Space nodes and passing tracks are dynamically updated, the avoiding and resource utilization efficiency during hemostasis robot cooperation is improved, task linkage parameters are synchronized, the scheduling sequence and execution stability of the sick and wounded in batches are improved, the splitting and conflict phenomena are reduced, an information chain penetrates through the front line and the rear line, and the efficiency is improved. Time sequence management, risk prevention and control and group cooperation capability of hemostasis management are enhanced.

The utility model discloses a protective structure for cargo transportation, which belongs to the technical field of transportation protection and comprises a tray, mounting grooves are distributed on the surface of the tray close to the edge, and protective parts are arranged in the mounting grooves and can prevent cargoes placed on the surface of the tray from inclining during transportation. The protective part is arranged on the surface of the pallet, the protective part can be completely stored in the mounting groove, goods placed on the surface of the pallet can be effectively prevented from inclining during transportation by arranging the protective part capable of being stored, the protective part can be completely stored in the mounting groove when not used, space is saved, meanwhile, the protective part can seal all fork inlets of the pallet in the stored state, and the safety of the pallet is improved. According to the pallet, the fork inlet can be prevented from being damaged, the service life of the pallet is prolonged, the pallet has the advantages of being easy and convenient to operate and good in protection effect, meanwhile, the whole pallet can be prevented from being moved under the condition that a protection piece is not used after goods are installed, and therefore the transportation safety is guaranteed.

The application discloses a kind of self-adaptive anti-blocking control method and system of atmospheric particulate matter sampling system, belong to atmospheric environmental monitoring technical field.Through real-time acquisition and state identification of multiple parameters, filter membrane pressure, flow, sand concentration and actuator operating condition are accurately monitored.Combining differential pressure time series analysis and trend prediction, a pre-blocking early warning algorithm based on weighted difference and sliding integral is innovatively proposed, and a hierarchical adaptive cleaning strategy is actively triggered in advance.The system realizes the coordinated closed-loop control of sampling process and cleaning maintenance, automatically compensates the flow loss caused by cleaning, and dynamically optimizes the cleaning parameters through differential pressure drop and current anomaly monitoring, to ensure that the filter membrane is continuously in the best working condition.The overall scheme improves the anti-blocking capability of the sampling system, realizes unattended self-maintenance throughout the cycle, and significantly improves the sampling accuracy and equipment reliability.

The invention belongs to the technical field of material science, and relates to a gold nanorod doped liquid photonic crystal temperature-sensitive sensor, which is prepared from the following components in percentage by volume: 20 to 40 percent of SiO2, 32 to 50 percent of auxiliary solvent, 20 to 38 percent of glycerol and 0.01 to 0.8 percent of gold nanorod based on the mass of a mixed solution of glycerol, silicon dioxide and auxiliary solvent, wherein the length-diameter ratio of the gold nanorod is 1: 4; the particle size of the SiO2 microspheres is 130 nm to 200 nm; by doping the gold nanorod with proper size and excellent photo-thermal performance in the multi-component mixed solvent and changing the doping mass of the gold nanorod, temperature devices in different thermal therapy temperature application stages can be prepared, the sensitivity is high, and the reflectivity can reach several times at room temperature; the method is simple in operation, easy to detect, and good in structural color mutation, stability and responsiveness when reaching a thermal therapy temperature range, and can quickly respond within 5 minutes.

The invention discloses a sodium pyrosulfite anti-caking method, which belongs to the technical field of sodium pyrosulfite preparation, and is characterized by comprising the following steps: (1) preparing sodium pyrosulfite; (2) adding a water-soluble anhydrous compound which has water absorption performance higher than that of the sodium pyrosulfite and can generate a stable crystal hydrate into the sodium pyrosulfite, wherein the addition amount of the water-soluble anhydrous compound accounts for 0.01-6% of the total mass of the sodium pyrosulfite; and (3) uniformly mixing the sodium pyrosulfite and the water-soluble anhydrous compound, and packaging to obtain a finished product. The invention aims to provide the sodium pyrosulfite anti-caking method which is simple in process, simple and convenient to operate and remarkable in effect. The method is used for sodium pyrosulfite.