641results about How to "Meet the requirements" patented technology

The invention discloses a lightweight multi-mode lower limb motion intention recognition method and system, and relates to the technical field of biomedicine. The method comprises the steps that multi-channel surface electromyogram signals sEMG of a target lower limb and joint angle signals and joint torque signals of lower limbs on the same side are synchronously collected; performing feature extraction by using a double-branch structure to obtain muscle-related deep time sequence features and joint-related high-level semantic features; performing feature fusion through a bidirectional cross attention mechanism to obtain cross attention fusion features; and performing flattening, nonlinear mapping, regularization and Softmax classification on the cross attention fusion features, and outputting the motion intention of the target lower limb. Through double-branch input, depth feature extraction and a bidirectional cross attention mechanism, on the premise of ensuring recognition precision, a lightweight attention module, a residual structure and a cross-modal interaction mechanism are introduced, and the parameter quantity and calculation overhead are reduced.

The invention provides a business process intelligent configuration and security execution method, system and device, and the method comprises the steps: converting a natural language demand into a BPMN 2.0 process model based on a large language model and an enterprise knowledge base; the service rule description is converted into a Grouping script through multi-level security compiling; the process and the script are executed in the Flowable process engine integrated with the security sandbox, and execution data are collected; and calculating a process health score based on the data, generating and implementing an optimization suggestion, and feeding back a result to the knowledge base. The problems that a traditional process system depends on manual coding, the script safety is poor, and continuous optimization is lacked can be solved. The full-link automation and intelligentization of the business process from design, execution to optimization can be realized, the development efficiency and the system security are greatly improved, and the process has the self-evolution capability through closed-loop feedback.

The invention relates to the technical field of stainless steel pipe fittings, in particular to a high-performance anti-corrosion stainless steel pipe fitting and a preparation method thereof.The preparation method of the high-performance anti-corrosion stainless steel pipe fitting comprises the following steps that S1, mechanical polishing is conducted; s2, removing oil; s3, acid treatment is conducted, specifically, the stainless steel pipe fitting blank obtained after oil removal is soaked in an acid surfactant solution for 5-10 min, and the stainless steel pipe fitting blank is taken out, washed with water and dried; the solute in the acidic surfactant solution comprises acid and a cationic surfactant; s4, adsorption treatment is conducted, specifically, the stainless steel pipe obtained after acid treatment is soaked in an adsorption solution containing graphene oxide for 4-10 min, and the stainless steel pipe is taken out and dried; and S5, anti-corrosion coating treatment is conducted, specifically, anti-corrosion coating is sprayed to the surface of the stainless steel pipe fitting blank, drying is conducted, and the high-performance anti-corrosion stainless steel pipe fitting is obtained. The method has the advantage that the anti-corrosion performance of the organic anti-corrosion coating can be improved.

The invention relates to the technical field of automatic driving, in particular to an open type automatic driving safety management system and method supporting multi-benefit-party strategy arbitration, and the system comprises an open type safety strategy interface module which is used for defining a standardized strategy description specification; the strategy plug-in management module is used for receiving and loading the strategy plug-ins conforming to the strategy description specifications; the perception and fusion module is used for collecting the vehicle state data, the environment perception data and the service context data and fusing the data to generate a unified context model; the multi-strategy evaluation module is used for screening a candidate strategy set according to a unified context model and a trigger condition when an abnormal event is detected, and evaluating and selecting an optimal strategy; and the strategy execution and monitoring module is used for executing the action template corresponding to the optimal strategy. According to the invention, the automatic driving vehicle can select adaptive degradation strategies according to different operation scenes and business requirements, and the adaptability of the system to diversified business scenes is improved.

The invention discloses a data auditing method and device based on artificial intelligence, electronic equipment and a storage medium, relates to the technical field of artificial intelligence, can be specifically applied to the financial and medical fields, and meets high requirements of financial and medical industries on compliance and auditing tracking while improving auditing efficiency and reducing labor investment. The method comprises the steps that in response to a data auditing request, target data to be audited are preprocessed, and a hierarchical tree structure used for describing text content and layout position information of the target data is obtained; based on the large language model, generating a field extraction cue word matched with the data type of the target data, guiding the large language model to perform field extraction on the hierarchical tree structure by utilizing the field extraction cue word, and obtaining a field extraction result output by the large language model; and performing abnormal field auditing and abnormal field evidence labeling on the field extraction result by utilizing a pre-constructed knowledge graph to obtain an auditing result of the target data, and outputting the auditing result.

The invention belongs to the technical field of bar production, and particularly relates to a production method of a steel bar for a heavy-load automobile half axle, and the steel bar comprises the following chemical components in percentage by mass: 0.39-0.42% of C, 0.25-0.35% of Si, 1.45-1.70% of Mn, less than or equal to 0.013% of P, less than or equal to 0.006% of S, less than or equal to 0.25% of Cr, less than or equal to 0.25% of Ni, 0.15-0.20% of Mo, 0.06-0.10% of V, less than or equal to 0.15% of Cu and the balance of Fe and inevitable impurities. The method has the advantages that high-performance, high-purity and low-cost production of the steel bar for the heavy-duty automobile half shaft is realized through green short-process production of'ecological electric furnace + LF + RH + continuous casting 'in combination with low-carbon component design and a controlled rolling and controlled cooling process. And macrostructures and non-metallic inclusions of the finished steel meet the requirements of high-end products.

The invention relates to a novel migration-resistant PVC sealing material and application thereof. The PVC sealing material is prepared from, by weight, 40-50 parts of PVC resin, 20-40 parts of a plasticizer, 10-25 parts of filler, 1-5 parts of a stabilizer and 2-10 parts of a microsphere modifier. The sealing material not only has excellent migration resistance and low temperature resistance, butalso has excellent mechanical properties and good resilience, and ensures good sealing of refrigeration equipment such as refrigerators and the like; and meanwhile, the price is relatively low, costcontrol is facilitated, and the sealing strip is very suitable for being widely popularized as a refrigeration equipment sealing strip.

The invention relates to the technical field of asphalt preparation, in particular to SBS / waste rubber powder composite modified asphalt and a preparation method thereof.The preparation method comprises the following preparation steps that S1, matrix asphalt and modified SBS are mixed and dissolved, and after shear development, a first-order mixed and dissolved substance is obtained; s2, adding modified rubber powder into the first-order miscible substance, and shearing and developing to obtain a second-order miscible substance; and S3, adding a stabilizer into the second-order miscible substance, and stirring and cross-linking to obtain the SBS / waste rubber powder composite modified asphalt. Through the synergistic effect of the modified SBS and the modified rubber powder, the viscosity of a system is reduced, the network structure strength of the SBS is maintained, a stable physical-chemical composite network is formed in the asphalt, phase separation is not prone to occurring in the heat storage process, the low-temperature ductility of the asphalt is improved, and the composite modified asphalt still keeps good flexibility in a low-temperature environment.

The invention discloses a remote data management platform for security operation and maintenance service, and belongs to the technical field of computer network security and data operation and maintenance management. The platform comprises a data acquisition module, an access control module, a remote operation and maintenance control module, a data isolation and encryption module, a security auditing and tracing module, an intelligent risk identification module, a strategy decision engine and a visual management interface module. The system adopts a layered deployment architecture, and realizes multi-layer protection, dynamic strategy adjustment and traceable auditing of the whole remote operation and maintenance process through encryption transmission, block chain type log chain, deep learning risk identification and knowledge graph strategy optimization. The platform has the functions of multi-factor authentication, log chain tampering prevention, intelligent risk early warning and strategy self-learning, can effectively prevent unauthorized access and data leakage, improves the safety, intelligence and verifiability of remote operation and maintenance, and is suitable for multi-scene safety operation and maintenance management of medical treatment, energy, government affairs, industrial control and the like.

The application discloses a fuel engine emission calculation method and system based on a hydrogen balance method, and a medium, and relates to the technical field of data processing. The method first acquires data such as fuel components, emission concentration, intake air flow, temperature and humidity; then calculates actual exhaust mass flow according to the intake air flow or fuel flow; and finally calculates the pollutant mass flow in combination with the exhaust molar mass, NO x Correction coefficient and pollutant concentration. The system comprises data acquisition, exhaust flow calculation and pollutant flow calculation units. The application replaces carbon balance with hydrogen balance, is not limited by the carbon content of fuel, is suitable for high-hydrogen, methanol, pure hydrogen, pure ammonia and other low-carbon and zero-carbon fuels, couples intake air humidity, supercharging intercooling and exhaust component correction, significantly improves the exhaust flow and pollutant emission calculation accuracy, solves the problem that the traditional carbon balance method is invalid under zero-carbon fuel, and is suitable for precise calculation and authentication of emissions of various engines.

This utility model discloses an integrated aseptic filling device for freeze-dried fruit pieces and blended fruit juice, comprising an aseptic filling unit and a reciprocating oscillation mechanism. The reciprocating oscillation mechanism is installed on one side of the aseptic filling unit. The aseptic filling unit includes a tank body, with a sealing cap screwed to the top and a release pipe installed at the bottom. A central baffle is installed in the middle of the tank body. The reciprocating oscillation mechanism includes a fixed base fixedly connected to the outer ring surface of the tank body, and a main shaft is installed on the fixed base. The main shaft is fixed to the output shaft of an external servo motor via a coupling. This integrated aseptic filling device for freeze-dried fruit pieces and blended fruit juice, through reciprocating rotation and oscillation by the reciprocating oscillation mechanism, ensures thorough and uniform mixing of the fruit pieces and fruit juice inside the tank, guaranteeing consistent filling quality and greatly ensuring product uniformity, providing consumers with a consistently good taste experience.

The utility model relates to powder conveying technical field especially is concerned on a kind of catalyst carrier powder conveying equipment;Including the hopper of cone angle ≥70 °, the roughness Ra of the inner wall surface of hopper ≤0.4 μm, pneumatic flow-aiding ring is set in the height ≤1 / 3 cone height of hopper lower part and the height from discharge port, and the annular air cavity of pneumatic flow-aiding ring is connected outside gas source;Pneumatic flow-aiding ring circumferentially distributes first nozzle group and second nozzle group, and the jet direction of first nozzle group is inclined upwards along hopper inner wall, for fluidizing powder layer in advance;The jet direction of second nozzle group is inclined downwards along hopper inner wall, for promoting powder slip.

This invention discloses a method for preparing a composite solid electrolyte, comprising the following steps: S1: dispersing modified sulfide electrolyte particles in an organic solvent, adding ethylene glycol diglycidyl ether and trifluoropyridine diamine for polymerization; S2: reacting the reaction product with added bromoalkane, then adding a fluorinated anion solution for ion exchange reaction to obtain a polyionic liquid-coated electrolyte intermediate; S3: placing it in a reactor containing acrylate, swelling under supercritical conditions, and then adding polyethylene glycol acrylate and lithium salt; after the reaction, a composite solid electrolyte with an interpenetrating or semi-interpenetrating network structure polymer coating is obtained. The preparation method of this invention not only effectively suppresses side reactions between the sulfide electrolyte, organic solvent, and lithium metal anode, but also significantly improves the interfacial stability and ionic conductivity of the electrolyte through the interpenetrating or semi-interpenetrating network structure polymer coating layer.

This invention relates to a physical information neural network-based intelligent performance prediction method and system for automated multi-material fiber placement on complex curved surfaces in aircraft. The invention includes: collecting fiber placement process parameters; performing standardized preprocessing and physical constraint-enhanced sampling to obtain an enhanced training dataset; constructing a high-order nonlinear sparse regression candidate library based on the enhanced training dataset; jointly identifying piecewise smooth physical differential equation systems and their mode switching logic using sparse Bayesian regression and Hidden Markov Models to obtain an embeddable inverse mechanism model; constructing a Physical Information Embedded Generative Adversarial Network (PI-GAN); collaboratively optimizing the generator and discriminator through adversarial training to output surface defect indices and mechanical performance indices; and initiating incremental self-learning when introducing new process scenarios to achieve model self-evolution. This invention achieves end-to-end accurate prediction of multi-dimensional quality indices such as surface defects and mechanical performance.

This invention discloses a dual-purpose charging gun and charging system. The dual-purpose charging gun includes a gun body, a connector, a first control component, and a second control component. When the user chooses manual charging, the plugging and unplugging action can be easily completed by operating the operating end of the first control component, which conforms to the user's operating habits. When automatic charging is required, the robotic arm connects to the gun body through the connecting area, and the second control component drives the connector to complete the hooking or unhooking action under the command of the control system, realizing fully automatic plugging and unplugging. The two working modes can be freely switched. The user can interrupt the automatic process and switch to manual operation at any time, or switch to automatic mode when manual operation fails. This solves the problem of incompatibility between manual and automatic charging functions. It also ensures charging safety and reliability through a standard-compliant hook structure, retaining the flexibility and user habits of manual operation, while possessing the convenience and accuracy of automatic operation.

The present application relates to a kind of environment-friendly water-based phenolic resin anticorrosive coating and its preparation process, belong to the field of coating technology.The coating is made of water-based phenolic resin emulsion, hyaluronic acid-lysine composition load nano SiO2-ZnO composite filler, synergistic anticorrosive filler, wetting dispersant, film forming aid, leveling thickener, defoaming agent and deionized water.The superhydrophilic of hyaluronic acid fundamentally solves the dispersion and storage stability problem of phenolic resin in aqueous phase, and the amino group of its lysine side chain can also chemically bond with resin during curing, significantly enhancing the adhesion, flexibility and interfacial bonding strength of coating.At the same time, nano SiO2, ZnO and synergistic anticorrosive filler construct a multiple synergistic anticorrosive network of physical shielding, sacrificial anode and chemical passivation, achieving long-term active protection.The whole system uses water as medium, selects bio-based raw materials and low VOC additives, and the environmental protection is outstanding.

The utility model provides an operation smoke collecting device under a simulated operation microenvironment, which comprises a box body, a lifting support arranged on the box body, a group of rotor flow meters arranged on the lifting support, a group of detection pipeline components arranged on the box body in a penetrating manner, one end of each detection pipeline component is communicated with the corresponding rotor flow meter, and the other end of each detection pipeline component is positioned in the box body. And the box body is also provided with an air inlet hole and an electrotome wire inlet hole. The smoke collection micro experimental environment under the simulated surgical operation is provided, the functions are convenient and fast to use, the production efficiency is improved, the environmental pollution is reduced, and the experimental safety is improved. The particulate matter monitoring module and the compound collecting module provided by the device can effectively meet the detection requirement of the operation smoke in the microenvironment.

The application provides a cable core coating forming device for cable processing and relates to the technical field of cable core coating. The device comprises a main body, size adjusting assemblies are symmetrically arranged in the mold, a resisting plate is fixed at one end of the size adjusting assembly, a plurality of delivery wheels are symmetrically arranged in the mold, an arc adjusting assembly is arranged in the delivery wheel, a cleaning assembly is arranged in the fixing seat, and a plurality of cleaning wires are fixed at equal angles on one side of the cleaning assembly. The meshing transmission of the bevel gear and the bevel gear ring can realize the synchronous rotation of the two-side lead screws, and then drive the synchronous displacement of the moving column, the fixing frame, the delivery wheel and the resisting plate, so that the reliable straightening of the cable core can be realized, the central clamping of the cable core can be realized, the cable core can always move linearly along the center of the mold, and the technical defects of the eccentric coating layer, the uneven thickness and the like caused by the bending, the deflection and the shaking of the wire core are solved.

This invention discloses a method for preparing tin dioxide powder by freeze-drying to inhibit tin hydroxide agglomeration. The method involves adding a tin source solution (36-54 g / L) and a precipitant solution (5-30 g / L) at a mass ratio of 1:0.1-0.25 under constant temperature and magnetic stirring. The precipitant solution is then added dropwise to the tin source solution, reacting to form tin hydroxide colloid. After static aging, the colloid undergoes rapid cryogenic freezing to instantly freeze it into an ice state. The ice-state colloid is then subjected to low-temperature vacuum sublimation drying to obtain loose tin hydroxide dry powder. The dry powder is then calcined to obtain tin dioxide powder. This invention fundamentally eliminates the agglomeration of tin dioxide powder, resulting in tin hydroxide dry powder with an agglomeration rate of less than 10% and a purity of over 99.9%, providing a high-quality precursor for high-performance electronic-grade tin dioxide.

This utility model relates to the field of hydraulic station housing technology, and provides a rainproof hydraulic station housing, which includes a plurality of lifting rings on the top surface of the housing; a rain cover plate is detachably installed on the top surface of the housing, and the rain cover plate has a plurality of clearance holes adapted to the size of the lifting rings, with each clearance hole corresponding to one of the lifting rings, and each clearance hole is surrounded by a water baffle plate, and the rain cover plate is surrounded by water guide grooves. In this design, the top surface of the housing is provided with welded lifting rings that meet export requirements, the rain cover plate is detachably installed with adapted clearance holes, the exposed lifting rings are suitable for lifting, and the lifting rings can seal the clearance holes to prevent rainwater from seeping in. The water baffle plates around the clearance holes prevent water from entering through gaps, and the water guide grooves around the cover plate accelerate drainage, reducing the possibility of rainwater entering through gaps. Its detachable design facilitates installation and maintenance, and the combined structure combines waterproofing and lifting, making it suitable for export products.

The utility model relates to the field of steel manufacturing, in particular to a mounting shaft dismounting table which comprises a frame body, the upper portion of the frame body is fixedly connected with a hydraulic cylinder which is vertically arranged downwards, a pressing head is installed at the telescopic end of the hydraulic cylinder, two supporting rods are symmetrically arranged below the hydraulic cylinder, and the two ends of each supporting rod are placed on supporting plates respectively. The lower surface of the supporting plate is fixedly connected with lifting rods of a lead screw lifting machine, and the ends of the supporting rods are connected through adjusting devices so that the distance between the two supporting rods can be adjusted. The distance between the nylon roller to be disassembled and assembled and the hydraulic cylinder above the nylon roller can be adjusted according to needs, it is ensured that the nylon roller disassembling and assembling device can be suitable for nylon rollers with different axial lengths without using a long hydraulic cylinder, the distance between the supporting rods is adjusted through the adjusting device, the supporting position of the nylon roller is adjusted, and the nylon roller disassembling and assembling device meets the use requirement.

The present application relates to mosquito liquid technical field, disclose a kind of environmental protection type mosquito repellent electric mosquito coil liquid with bio-based solvent and its preparation method, the electric mosquito coil liquid by mass percentage, including the following components: bio-based solvent 80%~85%, active ingredient 0.8%~1.9%, antioxidant 0.05%~0.2%, stabilizer 0.1%~0.5%, the rest is C1-C3 alcohol;Its preparation method includes: active ingredient and part bio-based solvent are dissolved to obtain active pre-solution;Remaining bio-based solvent is mixed with antioxidant, stabilizer to obtain main mixed solution;Active pre-solution is added to main mixed solution and homogenization treatment is carried out;Then in turn degassing treatment, standing ripening, filtration, filling, sealing, finished product is obtained.The present application uses bio-based solvent to replace traditional petroleum-based solvent, renewable, low irritation, and volatile uniform and stable, suitable for infant and the environment of sensitive population such as old people, and environmental protection is good.

The present disclosure relates to a method and device for determining influencing factors of flue gas emissions, equipment and medium. A plurality of initial influencing factors and a plurality of flue gas emission information of a target unit are obtained; the initial influencing factors and the flue gas emission information are respectively subjected to time sequence causality analysis, dependency analysis and correlation analysis to obtain time sequence causality information, dependency information and correlation between the initial influencing factors and the flue gas emission information; then, based on the time sequence causality information, the dependency information and the correlation, candidate influencing factors are obtained from the plurality of initial influencing factors, so that the selected influencing factors have high confidence in causality, explainability and information integrity; finally, the system feature dimensionality of the candidate influencing factors is reduced to determine the target influencing factors that affect the generation of a plurality of flue gas emission information of the target unit, thereby eliminating the multicollinearity between different influencing factors. Thus, the explainability of the pollutant emissions of the unit under the complex working condition of deep peak regulation is realized.

This utility model discloses a nozzle device for a centrifuge containing blast furnace molten slag, including a centrifuge roller, a rubber ring, multiple nozzles, and an air ring. The rubber ring is configured to be extended to cover the cotton-like area under the centrifuge roller. An adjustable nozzle angle mechanism is provided between the rubber ring and the air ring. This mechanism includes multiple adjustable supports, one end of which is fixed to the rubber ring, and the other end is connected to the nozzle. This utility model, by extending the rubber ring, increasing the number of nozzles to at least 12, and combining the adjustable nozzle angle mechanism with an anti-clogging device, clears the blind spots of glue coverage in the cotton-like area under the centrifuge roller, reducing the waste cotton rate. Simultaneously, combined with the air ring groove interlocking structure and auxiliary air duct system, it improves the uniformity of cotton dispersion, reduces nozzle maintenance frequency, increases daily output per line, saves glue costs and waste disposal fees, improves the stability of continuous production line operation and resource utilization efficiency, and meets the requirements of efficient utilization and high-cleanliness production of blast furnace molten slag in the metallurgical industry.

The invention discloses an abrupt slope mountain photovoltaic micro pile foundation construction method under complex geological conditions, and relates to the technical field of photovoltaic foundation construction. According to the method, in order to solve the problems that the slope of the abrupt-slope mountain land is large, the terrain is complex, large machines are difficult to operate, and the ecological environment is sensitive, the structural form of small-diameter pile groups and chamfered triangular bearing platforms is adopted, the heavy-load unmanned aerial vehicle hoisting technology is combined, and minimally invasive, efficient and green construction is achieved. The core of the method comprises the steps of construction preparation, measurement positioning, hole forming, reinforcement cage and bearing platform reinforcement installation, material transportation based on the heavy-load unmanned aerial vehicle, concrete pouring, maintenance and the like. The method is high in environmental adaptability, capable of overcoming 15-45-degree abrupt slopes and complex geological conditions and greatly reducing earth excavation and vegetation damage, high in structural bearing capacity and low in manufacturing cost, solves the problems that a traditional construction method is low in efficiency, serious in ecological damage and the like, and is suitable for mountain photovoltaic power station projects, particularly suitable for photovoltaic foundation construction of ecological sensitive areas.

The application discloses a high-reliability long-service-life compensator for spacecraft thermal control and a preparation method, relates to the field of space temperature control fluid loop compensators, and comprises a storage tank body, an upper cover and a bellows assembly. The upper cover is welded to one end of the storage tank body, and the bellows assembly is welded to the other end of the storage tank body. The bellows assembly is located inside the storage tank body and is used for connecting a thermal control fluid loop. A liquid cavity is formed in the bellows assembly, the liquid cavity is communicated with the thermal control fluid loop, and an air cavity is formed between the bellows assembly and the storage tank body. The main function of the compensator is to reduce fluid loop pressure fluctuation, prevent cavitation caused by excessively low inlet pressure of the loop pump, and compensate for the reduction of liquid working medium caused by long-term operation, maintenance and micro-leakage of the system. The product provided with a liquid level sensor also has a liquid level display function.

The application mainly relates to a nonlinear resistance strain sensor. The nonlinear resistance strain sensor comprises an elastic base and a conductive substance, and the conductive substance is uniformly distributed on the elastic base. When the elastic base is pulled, the length of the elastic base is correspondingly lengthened, the density of the conductive substance on the elastic base is reduced, and the overall resistance is changed. In the above manner, the nonlinear resistance strain sensor has the nonlinear high-sensitivity resistance strain performance.

The utility model discloses a recycling various waste batteries recycling equipment system, its characterized in that, including conveying device, disassembling device, shredding device, drying device, air guide device, sorting device and flotation device, conveying device includes conveyer, and the battery box and battery cover of battery are set up to split out battery cover mechanism for conveying machine, and the collection mouth of disassembling device is poured into after electrolyte collection in battery box material, and disassembling device includes disassembling machine, and the below of disassembling machine sets up brine pool, and brine pool sets up meshing conveying mechanism and conveys material to shredding device, and shredding device includes shredder, and the below outlet of shredder sets up fire lye pool, and fire lye pool iron class heavy metal class plastic class material is conveyed to sorting device through meshing conveying mechanism, and the black powder class material of deposition is sent to dehydration equipment dehydration through pipeline screw conveying mechanism, and then, using pipeline screw conveying mechanism, the material is sent into drying device. The utility model can make all resources of waste batteries, and process safety, reliable.

The utility model belongs to the technical field of power cables, and particularly relates to an IE-grade K3-class radiation-resistant power cable, which comprises a protective sleeve, ventilation and heat dissipation ports arranged at equal intervals are arranged on the outer surface of the protective sleeve, a connecting sleeve is arranged in the protective sleeve, a power cable is arranged on the inner wall of the connecting sleeve, and two groups of support rings are fixedly connected to the outer surface of the connecting sleeve. The side faces, close to each other, of each set of supporting rings are fixedly connected with supporting plates arranged at equal intervals, the side face, away from the connecting sleeve, of each supporting plate is fixedly connected with two sets of telescopic springs, and the ends, away from each other, of each set of telescopic springs are fixedly connected with connecting plates. Particularly, an elastic buffering system composed of a supporting ring, a supporting plate, a telescopic spring and a connecting plate can convert mechanical impact into spring deformation energy, the external force resisting performance is greatly improved, and meanwhile an efficient heat dissipation path can be formed by matching equidistant ventilation heat dissipation openings in the surface of the protective sleeve with an air channel between the protective sleeve and a connecting sleeve.

Disclosed are a composition for removing edge beads from a metal-containing resist or a metal-containing resist developer composition, and a method of forming or providing a pattern using the composition or the developer composition. The composition for removing edge beads from a metal-containing resist or the developer composition of a metal-containing resist may include: a cyclic compound including in a ring at least one heteroatom selected from N, O, and S and at least two carbonyl groups; and a solvent.