47 results about "Performance recovery" patented technology

The invention discloses an SBS (styrene butadiene styrene) modified asphalt aging performance evaluation method, a prediction model and application, relates to a construction method of an SBS modified asphalt aging performance evaluation and prediction model based on multi-scale aging evaluation indexes, and aims to solve the problems that aging evaluation depends on a single-scale index and the prediction precision is insufficient in the prior art. The model is verified by accelerated aging data in a laboratory, the thermo-oxidative aging error is less than or equal to 9.4%, and the ultraviolet aging error is less than or equal to 7.5%. Engineering application: providing road maintenance period suggestions (for example, when the aging time is predicted to be 5 years, detection is recommended once every two years); triggering a material replacement threshold value when the number of honeycomb structures drops to 60% of the initial value; the performance recovery is realized by compounding the new asphalt and the regenerant (the mixing amount is 10-15%). Through multi-scale index collaborative analysis and data modeling, the aging prediction precision is significantly improved, and a scientific basis is provided for asphalt material life evaluation and road maintenance decision.

The invention provides an adaptive high-performance consistent control method for a multi-agent system under denial of service (DoS) attack, and a sensing unit comprises a state sensing module carried on each agent, obtains body state information in real time, and shares information with other agents through an adjacent communication network; the information is used for error calculation and local control decision, and meanwhile, communication quality and whether interruption occurs are judged, so that the observability and anti-disturbance capability of the system are enhanced; a distributed control unit controller is deployed in each intelligent body, error mapping and performance constraint are carried out, a time-varying performance boundary is constructed, a control law and a self-adaptive estimation law are designed, a communication execution unit is responsible for transmitting a trigger signal, state estimation or control input generated by the controller among the intelligent bodies, intermittent DoS attacks can be tolerated, and the control law and the self-adaptive estimation law are designed. And an automatic retransmission and timeout judgment mechanism is provided, so that reliable transmission of key data is guaranteed. State estimation, performance recovery and efficient communication can be realized in a DoS attack environment.

The invention is suitable for the technical field of remanufacturing of key parts of aero-engines and gas turbines, and provides a laser strengthening composite cladding high-performance repairing method for an engine supporting plate. Comprising the following steps of pretreatment and damage evaluation, uncoated laser shock peening pretreatment, composite cladding material design and preparation, coaxial powder feeding laser cladding repair, post-treatment and performance recovery and final inspection and performance evaluation. According to the method, by means of a synergistic structure of coating-free LSP pretreatment and laser cladding, a pre-compressive stress layer pre-constructed on a base body is pretreated, tensile stress generated by rapid heating and cooling in the cladding process can be effectively counteracted, and crack initiation and extension of the interior of a cladding layer and a bonding interface are inhibited from the source; meanwhile, thermal stress accumulation is further reduced through partition staggered scanning and interlayer temperature control in S4, and the crack rate of a repaired area is remarkably reduced through the dual effects; performing performance transcendental recovery; and the method is pollution-free, high in reliability and good in manufacturability.

The invention provides a dual-fuel cell engine vehicle power distribution method and system, and relates to the technical field of fuel cell control, and the method comprises the steps: if the total demand power of a whole vehicle is not less than two times of the single machine idle speed power, the total demand power is equally distributed to two fuel cell engine controllers; otherwise, only starting the single engine with better performance and distributing the total required power; judging the performance difference according to the power response states of the two engines, and if the performance difference is small, keeping a power equalization strategy; otherwise, recalculating and dynamically adjusting the required power of the two engines according to the performance difference; and executing performance recovery operation on the engine with poor performance, and if the performance cannot be recovered, executing total required power redistribution. According to the method, the actual performance of the two engines is compared, the demand power ratio is corrected, the performance of the engine with the poor performance is tried to be recovered in the mode of gradually improving the power, then the final demand power distribution method is determined according to the recovery state, the comprehensive efficiency is improved, and the failure rate is reduced.

The invention particularly relates to a fuel cell online performance recovery method and device, electronic equipment and a storage medium, and the method comprises the following steps: determining a to-be-recovered cell stack from a plurality of fuel cell stacks, and respectively introducing a preset hydrogen-containing gas into anodes of the plurality of fuel cell stacks, respectively introducing mixed gas with preset concentration into the cathodes of the plurality of fuel cell stacks; closing an inlet valve and an outlet valve corresponding to the cathode of the to-be-recovered cell stack, controlling the plurality of fuel cell stacks to output a first preset current to supply power to external equipment, and when it is judged that the to-be-recovered cell stack reaches a preset recovery state under the condition that the duration of outputting the first preset current reaches a first preset duration, stopping the recovery of the to-be-recovered cell stack. And opening an inlet valve and an outlet valve corresponding to the cathode of the to-be-recovered cell stack, and controlling the plurality of fuel cell stacks to output preset working current to supply power to external equipment. Therefore, the problems that fuel cell performance recovery needs an external power supply, online operation cannot be carried out, the recovery efficiency is low and the like in related technologies are solved.

The present application relates to the technical field of system performance optimization and resource scheduling, in particular to a system performance recovery method based on equipment adjustment and a strategy support platform thereof. The method comprises: inputting system information to be recovered; sequentially performing system reorganization feasibility evaluation and optimization, function replacement and spare parts commissioning evaluation, external allocation feasibility evaluation and optimization, and generating a recovery scheme; finally integrating the scheme and encoding output by using a preset encoding rule. The equipment adjustment operation is summarized as four basic types of system reorganization, function replacement, spare parts commissioning and external allocation. The strategy support platform comprises a hardware layer and a software layer, and through the internal scheme optimization program, the method process is automatically executed, the system information is received and the encoded optimal performance recovery strategy is output. The present application realizes the automatic generation and rapid decision of the system performance recovery strategy through the structured recovery process and the unified encoding system.

The invention belongs to the field of water turbine maintenance evaluation, and discloses a water turbine maintenance effect evaluation method and system based on a multi-source data dynamic benchmark, and the method comprises the steps: collecting multi-source data; collecting historical health data of the same model to construct a dynamic reference model; multi-source data before and after maintenance is input into a model for preprocessing, a state characterization value is output, and a feature index set is calculated; on the basis of the feature index set and the dynamic weight coefficient, a comprehensive quantitative index is calculated through a weighted fusion algorithm, an analysis report is generated, the feature indexes cover the maintenance effect improvement degree, the performance recovery rate, the state deviation improvement degree and the like, and the dynamic weight coefficient is adjusted in real time according to the operation condition and the data change; through multi-source data acquisition and dynamic reference model construction, the one-sidedness of traditional single data source evaluation is avoided, the adaptability and accuracy of evaluation are enhanced, a complex maintenance effect is converted into a visual value, a scientific basis is provided for water turbine maintenance and performance optimization, the operation efficiency and reliability are improved, and the operation and maintenance cost is reduced.

The invention relates to an assembling method, a performance recovery method and a performance recovery device of electrochemical equipment, a steam generator is used for heating liquid water to obtain steam, and the steam is conveyed to an equipment inlet of the electrochemical equipment through a steam conveying pipeline to heat equipment parts of the electrochemical equipment; the perfluorinated sulfonic acid resin on the surface and the gap of the equipment component repairs the mechanical damage of the electrochemical equipment in the heating process; the electrochemical equipment is an electric pile or an electrolytic cell; the pressure controller is connected with the steam generator and is used for adjusting the steam pressure of the steam; the steam temperature controller is connected with the pressure controller and used for adjusting the steam temperature of the steam. According to the scheme, the equipment performance of the electrochemical equipment is recovered in a water vapor heating mode, on one hand, corrosion of acidic substances to metal components is avoided, on the other hand, the water vapor impurity concentration is low, and adverse effects of impurities in acid and acid residues on the electrochemical equipment are avoided.

The application discloses a kind of targeted performance recovery type regenerant compounding method and system, it is related to road engineering technical field, compounding method includes: obtaining the performance characterization parameter of aging asphalt in old asphalt pavement material, and constructs aging asphalt performance matrix;According to the target incorporation amount of old asphalt pavement material, the target performance matrix of regenerated asphalt is constructed;According to aging asphalt performance matrix, candidate regenerant is determined, and the performance characterization parameter of the regenerated asphalt that candidate regenerant is mixed with aging asphalt based on preset incorporation amount, and the performance matrix of regenerated asphalt is constructed;According to aging asphalt performance matrix, target performance matrix and regenerated asphalt performance matrix, multi-index mixed model and object function are constructed, and target regenerant and optimal compounding weight coefficient are determined, and the compounding scheme of targeted performance recovery type regenerant is obtained.The application can realize the recovery of aging asphalt, and is suitable for the production and application of regenerated asphalt.

This invention relates to a perovskite precursor solution remediation additive, regeneration method, and application. The remediation additive is a tetra(hydroxymethyl)phosphonium salt with the general chemical formula [P(CH2OH)4]. + ·X ‑ X represents a halogen; tetra(hydroxymethyl)phosphonium salt simultaneously acts as an organic cation source, a redox buffer for iodine species, and a coordination stabilizer for lead ions in the perovskite precursor solution. This invention demonstrates significant performance recovery: it can chemically repair aged solutions, enabling the film quality and device performance of the regenerated solution to reach over 95% of the level of a freshly prepared solution.

The invention provides a fuel cell system and an online performance recovery method thereof, and relates to the technical field of fuel cells. The fuel cell system comprises a fuel cell, a bipolar plate of the fuel cell is divided into a plurality of to-be-detected areas, each to-be-detected area is provided with a detection element, and the detection elements are used for detecting operation parameters of the fuel cell in the corresponding to-be-detected areas in real time; when the humidity of the membrane electrode in the fuel cell is recovered, micro short circuit between the anode and the cathode of the fuel cell can be realized; when the activity of the catalyst in the cathode of the fuel cell is recovered, the oxidant can be stopped from being supplied to the cathode of the fuel cell; and when the operation of the fuel cell is judged to be abnormal according to the operation parameters detected by the detection elements, the micro short circuit between the anode and the cathode of the fuel cell needs to be removed and / or the oxidant needs to be provided for the cathode of the fuel cell again. On the basis, the adaptive capacity of the fuel cell system can be remarkably improved, and the operation efficiency, service life, safety and stability of the fuel cell system are guaranteed.

The invention discloses a fuel cell stack and an inner membrane electrode in-situ performance detection and performance recovery method thereof. The fuel cell stack comprises a plurality of inner membrane electrodes stacked in series and bipolar plates arranged between the adjacent inner membrane electrodes, the cathode side and the anode side of each bipolar plate are respectively provided with a cathode tab and an anode tab, and the cathode tab and the anode tab extend outwards from the edge of the corresponding bipolar plate along the direction parallel to the plane of the bipolar plate; the tab structure is arranged on the bipolar plate of the electric pile, so that independent maintenance and performance recovery of a fault membrane electrode are effectively realized, the overall service life of the electric pile is guaranteed, and secondary damage to the membrane electrode is avoided.

The invention relates to a progressive lightweight method for a high-efficiency self-attention model, which belongs to the technical field of artificial intelligence, and comprises the following steps of: quantizing a weight to a higher bit for intermediate transition, and gradually compressing to a target bit, so that the model can gradually adapt to distribution change caused by quantization in an optimization process, and the weight of the model is reduced. Therefore, the performance loss caused by the quantization error is obviously reduced. According to the mode of combining staged transition and mixed granularity reconstruction, the performance recovery capability of the low-bit quantization model is improved, so that the model can still maintain relatively high accuracy under extremely low bit representation, and has relatively high robustness and practicability.

The patent gives a short vertical propulsion system vertical landing phase performance recovery control method based on reinforcement learning. The optimization method considers the degradation of the short vertical propulsion system in the design of the controller through the reinforcement learning algorithm. Through the pre-training of the intelligent agent by reinforcement learning, the multiple thrust outputs of the short vertical propulsion system can still maintain stability under the disturbance of component degradation, helping the short vertical aircraft to maintain the balance of the pitch attitude in the vertical landing phase under the condition of degradation.

An energy storage management system and a flight planning system and related methods and program products for an electric aircraft are provided. Systems include a computing device configured to: calculate a performance capability envelope of an energy storage system for an electric aircraft based on a mission profile for a future usage period of the energy storage system and a computational model of the energy storage system. The mission profile includes at least one of an expected energy demand and an expected power demand during at least a portion of a flight of the electric aircraft. The computing device implements a corrective action, such as conducting a performance recovery routine, in response to a comparison of the mission profile to the calculated performance capability envelope indicating a performance deficiency where the energy storage system cannot meet the mission profile within a preset tolerance. The computational model considers memory effect degradation.

The application discloses a crack repair method for a large mold, and belongs to the technical field of mold repair, and comprises the following contents: S1, stress field evaluation and repair; S2, synergistic energy field stress regulation pretreatment: based on a residual stress distribution cloud picture, local cryogenic treatment and pulse current composite energy field treatment are applied to a repair area; S3, low-stress damage removal: in the area treated in the step S2, cracks are removed by mechanical processing, and a geometric bevel with a mechanical interlocking effect is formed; S4, gradient welding repair; S5, zoned intelligent aging post-treatment; S6, adaptive processing and performance recovery; through the whole-process stress management system of stress field evaluation-composite energy field pretreatment-zoned intelligent aging, the application is specially aimed at the characteristics of complex structure and uneven stress distribution of the large mold, effectively releases deep residual stress, and solves the problem of secondary cracks caused by superimposed thermal stress in the traditional repair method.

The invention provides a self-adaptive resource scheduling method and device for a data center, and the method comprises the steps: obtaining the service quality state of a running application program at the beginning of a resource scheduling period; setting the resource scheduling granularity in the resource scheduling period through the service quality state; and carrying out resource scheduling on beneficiary applications and victim applications in the application program in the resource scheduling period according to the resource scheduling granularity. The invention further provides electronic equipment and a computer readable storage medium. According to the resource scheduling method, a nonlinear control strategy which is tightly coupled with the urgency quantitative model is adopted, the intelligent resource scheduling effect is achieved through specifically-designed interval and granularity mapping, and finally the technical purposes of reducing feedback delay, accelerating performance recovery and improving the resource utilization rate are achieved cooperatively.

This technology provides a way to estimate, along with the environmental impact, whether reusing used equipment will be beneficial to customers and businesses throughout the entire lifecycle of the equipment. [Solution] The equipment value diagnostic system performs the following steps: a deterioration trend prediction step that uses equipment specification information, operation history information, deterioration prediction model information, and reuse condition information to predict the deterioration trend in terms of performance and the probability of maintenance work occurring; an event prediction step that uses the results of the deterioration trend prediction to predict events that will occur during the reuse period, including an evaluation of each maintenance work to be performed when the event occurs and the performance recovery caused by the maintenance work; and a cost and environmental load estimation step that uses cost and environmental load information and the events that will occur to estimate the cost and environmental load of the reuser.

The invention discloses airtight protective clothing and a processing technology thereof. The protective clothing comprises a main body fabric, a sealing zipper and a protective mask, a three-dimensional composite sealing structure is arranged at a seam of the main body fabric, and the three-dimensional composite sealing structure sequentially comprises a hot melt adhesive lining layer made of a modified polyolefin elastomer, a hot melt adhesive lining layer and a sealing layer from inside to outside; the shape memory alloy wire mesh layer is formed by weaving nickel-titanium alloy wires into hexagonal honeycomb grids; according to the self-repairing polymer coating, light-cured polyurethane acrylate is used as a matrix, and nano silicon dioxide particles are doped; when the sulfydryl modified nano silicon dioxide particles in the self-repairing polymer coating are exposed to environmental ultraviolet light at a mechanical damage position, a dynamic disulfide bond exchange reaction can be triggered, cracks with the width smaller than or equal to 100 microns can be automatically closed within 5-30 min, the airtight performance recovery rate after repairing is larger than or equal to 95%, and therefore protection failure caused by tiny damage extension is avoided.

The invention belongs to the technical field of semiconductor atom manufacturing and performance testing, and particularly relates to a method for preparing a self-repairing monocrystalline silicon nanowire and testing the mechanical / electrical performance recovery rate of the self-repairing monocrystalline silicon nanowire. Comprising the following steps: processing and bombarding a monocrystalline silicon material along a [111] crystal orientation by adopting an ion beam to form a micron sheet; connecting two ends of the micron sheet with a force / electricity performance test chip; carrying out thinning and width trimming on the micron sheet to form a nanowire; the surface of the nanowire is etched by using an electron beam spot, the diameter of the electron beam spot is 1-6nm, the acceleration voltage is 200-300kV, and the dosage rate is 1 * 10 < 6 >-1 * 10 < 8 > e / 2s. Controllable preparation of the self-repairing monocrystalline silicon nanowire is provided, the self-repairing efficiency exceeding 70% is achieved, the force / electricity performance of the monocrystalline silicon nanowire before and after fracture is represented through the transmission electron microscope force / electricity testing technology, and quantitative testing of the self-repairing efficiency of the monocrystalline silicon nanowire is achieved.

An energy storage management system and a flight planning system and related methods and program products for an electric aircraft are provided. Systems include a computing device configured to: calculate a performance capability envelope of an energy storage system for an electric aircraft based on a mission profile for a future usage period of the energy storage system and a computational model of the energy storage system. The mission profile includes at least one of an expected energy demand and an expected power demand during at least a portion of a flight of the electric aircraft. The computing device implements a corrective action, such as conducting a performance recovery routine, in response to a comparison of the mission profile to the calculated performance capability envelope indicating a performance deficiency where the energy storage system cannot meet the mission profile within a preset tolerance. The computational model considers memory effect degradation.

The application discloses an evolution pruning method for image rapid identification and based on a distilled dataset, which generally follows a process of "evaluation strategy screening-evolution search-performance recovery". Firstly, the evaluation strategy screening stage uses a dataset distillation method to obtain a distilled dataset, verifies the effect of the distilled dataset in model evaluation, and determines the model evaluation mode of the distilled dataset; then, the evolution search stage encodes the filter number of a convolution layer, uses an evolution algorithm to search for an optimal pruning model in combination with a constraint processing method, and uses the distilled dataset and part of a real dataset for model evaluation, so that the cost of model evaluation is greatly reduced; finally, the performance recovery stage uses the real dataset to train the pruning model from the beginning, recovers the precision of the pruning model obtained in the evolution search stage, and outputs the model. The application has the characteristics of reducing evaluation cost and reducing search space.

The invention discloses a low-temperature performance repairing method for a lithium iron phosphate battery, and relates to the technical field of battery performance repairing, and the method comprises the steps: obtaining low-temperature application scene information of a target lithium iron phosphate battery, and carrying out the dynamic optimization of the battery, and obtaining a battery structure optimization parameter system; carrying out low-temperature twinborn simulation to generate a battery low-temperature operation twinborn body; constructing a battery low-temperature performance evaluation index, and generating a battery low-temperature operation prediction performance parameter; and carrying out repair strategy analysis, constructing a battery low-temperature performance repair strategy scheme library, and carrying out battery operation control. The technical problems that in the prior art, lithium iron phosphate battery low-temperature performance optimization lacks scene adaptability, performance evaluation and repair control are disjointed, and consequently the low-temperature operation stability is poor and the performance recovery efficiency is low are solved, and the purposes that whole-process accurate intervention of the lithium iron phosphate battery low-temperature performance is achieved, and the low-temperature performance of the lithium iron phosphate battery is improved are achieved. And the operation stability and the performance recovery efficiency of the battery in a low-temperature scene are improved.

Provided is a technique for estimating, in the case of reusing pre-owned equipment, whether the pre-owned equipment will be profitatble for customers and businesses over the life cycle of the equipment, together with an environmental impact.　This equipment value diagnosis system executes: a deterioration transition prediction step of predicting, by using equipment specification information and operation history information, deterioration prediction model information, and reuse condition information, deterioration transition regarding performance and a probability of maintenance work; an event prediction step of predicting, by using a result of the prediction of the deterioration transition, an event, which occurs during a reuse period, together with evaluation of all maintenance work to be performed when the event occurs and performance recovery resulting from the maintenance work; and a cost / environmental impact estimation step of estimating reuser's cost and environmental impact by using cost / environmental load information and the occurring event.

The invention discloses a crack repairing method for a large mold, which belongs to the technical field of mold repairing and comprises the following steps: S1, evaluating and repairing a stress field; s2, cooperative energy field stress regulation and control pretreatment: applying local cryogenic and pulse current composite energy field treatment to the repaired area based on the residual stress distribution cloud picture; s3, low-stress damage cutting is conducted, specifically, in the area treated in the step S2, cracks are removed in a machining mode, and a geometric groove with a mechanical interlocking effect is formed through machining; s4, carrying out gradient welding repair; s5, performing partition intelligent aging post-processing; s6, self-adaptive processing and performance recovery are carried out; according to the method, through a whole-process stress management system of stress field evaluation, composite energy field pretreatment and partition intelligent aging, effective release of deep residual stress is achieved specially aiming at the characteristics of complex structure and uneven stress distribution of the large mold, and the problem of secondary cracks caused by thermal stress superposition in a traditional repairing method is solved.

The invention relates to the technical field of road material regeneration, in particular to an RAP fine separation aged asphalt deep fusion regeneration method, a regeneration system and a regenerated asphalt mixture. According to the regeneration method, the aged asphalt in the RAP is effectively removed through combination of fine separation and supercritical extraction, then the aged asphalt is activated and permeated through the targeted regeneration agent, the rheological property of the asphalt is directionally recovered, finally, fusion regeneration is performed at low temperature, high-temperature secondary aging is avoided, and the performance recovery rate of the regenerated asphalt can be remarkably increased.

The application discloses a kind of waste solid-state hydrogen storage material active regeneration device and method, including shell and at least one flow guide component, shell is formed with gas passage and with gas passage communication gas inlet and gas outlet, flow guide component includes first flow guide piece, first flow guide piece is built into gas passage, and with the inner wall of shell detachable connection, first flow guide piece can be separated into at least two intercommunicating flow channel cavities, for extending the flow path of gas in gas passage.The application can solve the problem that the performance recovery is difficult to achieve or the performance recovery effect is poor in the prior art due to the use of conventional methods for waste solid-state hydrogen storage material.

The invention relates to the technical field of flow batteries, and provides a flow battery system performance recovery method and system, the system comprises a performance detection module, an electrolyte storage and supply module, an electrochemical reaction module, a fluid conveying and control module, a thermal management module, a circuit control module and a state monitoring module; the fluid conveying and control module comprises a valve group which is arranged through a plurality of groups of pipelines and is used for dynamically switching electrolyte paths; the circuit control module comprises a dual-power switch and is used for realizing lossless switching of electrode polarity; the valve group is in controlled linkage with the dual-power switch, the flow direction of the electrolyte and the polarity of the circuit are changed through logic switching, and traditional liquid mixing is replaced. According to the scheme, the dynamic switching of the positive and negative electrode attributes of the electrolyte is realized, the forced liquid mixing operation is eliminated, and the problems of electric energy loss and accompanying severe temperature rise before traditional switching are fundamentally avoided.

An anti-skid performance recovery device for an asphalt pavement relates to the technical field of pavement maintenance equipment and comprises a vehicle body, and an anti-skid performance recovery mechanism is mounted at the bottom of the vehicle body in a liftable manner; the antiskid performance recovery mechanism comprises an isolation cover with a downward opening, a flow dividing pipe is transversely arranged at the top of the isolation cover, a plurality of jet flow nozzles are evenly arranged under the flow dividing pipe at intervals in an array mode, and the spraying direction of the jet flow nozzles vertically faces the opening direction of the isolation cover. By integrating the lifting type anti-skid recovery mechanism and the high-pressure water jet cleaning and negative-pressure slag suction system, rapid recovery of the anti-skid performance of the road surface is effectively achieved, meanwhile, impurities on the road surface are cleaned, the road safety is improved, the structural design is compact, operation is convenient and fast, the maintenance cost is low, and cyclic utilization of resources is achieved.

This invention relates to the field of neural network computing technology and discloses a mapping method for neural network computing in a heterogeneous environment. The method includes: parsing the neural network computation graph to extract the topological convergence degree of operator nodes and the asynchronous dwell integral of tensors; monitoring the transient operational deviation rate of computing resource units to generate a performance degradation gradient; filtering operator nodes whose convergence degree and integral exceed limits, and using the inactive period formed by the synchronization time difference of predecessor branches as a timing mask to map the filtered operator nodes to computing resource units in the performance recovery period. This invention utilizes the inherent asynchronous waiting gap of the neural network topology to mask the hardware physical temperature control recovery period, eliminates the local memory backpressure caused by asynchronous tensor stacking, and makes the global performance of heterogeneous computing resources approach the sum of the theoretical physical peak values ​​of the hardware.