22results about How to "Overcome stability" patented technology

The invention discloses a waste gas degradation treatment effect evaluation method and system, and relates to the technical field of waste gas treatment.The waste gas degradation treatment effect evaluation method comprises the steps that working condition parameters, pollutant concentration and reaction product spectral signals are synchronously collected in the operation process of a waste gas treatment device, and multi-source data are preprocessed to form a time sequence feature set; based on a time sequence feature set, carrying out feature modeling on the spectral signal, extracting main features of a product, comparing the main features with a standard fingerprint database, identifying an abnormal offset degree generated by a by-product, constructing a digital twin model by using working condition parameters, generating an ideal operation state, and calculating a deviation value between reality and ideal; the removal rate is calculated according to the pollutant concentration, the energy efficiency index is generated in combination with the energy consumption parameter, and the removal rate, the energy consumption index, the by-product deviation and the working condition deviation are integrated to form a multi-dimensional operation state vector. The controllability and response speed of the waste gas degradation treatment efficiency are effectively improved, and the intelligent adjusting capacity of the waste gas degradation process is remarkably enhanced.

The invention relates to the technical field of lithium ion batteries, in particular to a composite positive electrode material and a preparation method thereof, a lithium ion battery and electric equipment. The invention provides a preparation method of a composite positive electrode material, which comprises the following steps: mixing a bulk phase dopant, a lithium source and a ternary precursor to obtain a mixture I, and respectively sintering at 815-830 DEG C for 12-14 hours and at 760-770 DEG C for 8-10 hours to obtain a sintered material I-1 and a sintered material I-2; a first coating agent and a second coating agent are mixed with the sintered material I-1 and the sintered material I-2 respectively and then coated, and a sintered material II-1 and a sintered material II-2 are obtained; and mixing the sintered material II-1 and the sintered material II-2 to obtain the composite positive electrode material. According to the invention, the bulk phase dopant and the doped ternary precursor core layer are firstly added, then the first coating agent and the second coating agent are added, and the surface functional layer is synthesized, so that the composite positive electrode material has both high capacity and high cycle stability under the synergistic effect of the bulk phase dopant and the doped ternary precursor core layer.

The present application relates to complex stratum pile foundation construction technology field, disclose a kind of riprapping stratum full casing rotary and rotary drilling combined hole construction method, comprising the following steps: leveling construction ground;Pile position lofting is carried out, and guiding positioning structure is set;First section casing with grouting passage is installed on full casing rotary drilling machine, grouting passage is used for grouting;Through full casing rotary drilling machine clamping casing, drive casing press into riprapping stratum, while rotary drilling carries out soil taking;Slurry is injected by grouting passage, and riprapping body outside casing is consolidated to form annular consolidated body;The elevation difference between the soil taking surface of rotary drilling and the bottom end of casing is controlled to be within the preset range, and the following protection wall is formed;Lengthen next section casing, and connect adjacent grouting passage;Until casing penetrates riprapping layer and main sand layer and enters lower stable layer.The present application can solve the problems of difficult riprapping stratum hole forming, easy hole collapse, easy grouting leakage and easy drill sticking.

This utility model is entitled "A Multi-Point Termite Monitoring System with Centralized Photovoltaic Energy," belonging to the field of termite monitoring technology. It primarily addresses the problems of relatively poor termite monitoring transmission and communication effects, and the inability to use existing termite monitoring devices due to battery failure, as well as environmental pollution. Its main features include: multiple termite monitoring devices, solar photovoltaic modules, a vertical support frame, and a field control box; wherein the solar photovoltaic modules and the field control box are mounted on the vertical support frame; the field control box contains a control module and a solar power circuit connected to the solar photovoltaic modules; the solar power circuit and the control module are electrically connected to the attraction triggering module and signal acquisition module in the multiple termite monitoring devices via wires. This utility model features good and stable termite signal transmission and controllable centralized solar power supply, and is mainly used for monitoring termites in the soil and attracting and killing flying ants during swarming season.

The application belongs to the field of biological medicine and protein engineering, and particularly relates to a preparation method of a proteinase cryo-EM sample and a structural analysis method of the proteinase. The preparation method comprises the following steps: providing an enzyme solution of a target proteinase, adding an enzyme inhibitor of the target proteinase, collecting an incubation product supernatant after the obtained mixture is incubated, and preparing a cryo-EM sample by sucking the incubation product supernatant; the target proteinase comprises a serine protease, the target proteinase is located on a cell membrane, and / or the target proteinase is dependent on ATP. The application prepares a cryo-EM sample after the enzyme solution of the target proteinase is incubated by adding the enzyme inhibitor of the target proteinase, so that the problems of depolymerization of a membrane proteinase and instability of a protein soluble region can be overcome, the cryo-EM structure of a full-length membrane proteinase is successfully analyzed in electron microscope observation, and a precise reference is provided for subsequent design of specific targeted drugs.

The utility model discloses a multipurpose relay, and relates to the technical field of relays. The two sides of the top of the base are symmetrically and fixedly connected with frameworks, the tops of the frameworks are fixedly connected with an iron stand, the top of the base is provided with a coil, the top of the framework on one side is provided with an iron core, the outer sides of the frameworks are provided with fixing mechanisms, and the top of the iron stand is provided with an elastic mechanism. The fixing support and the fixing terminal are integrally designed, the first elastic block is arranged to be a polyurethane elastomer, certain flexibility is achieved, the magnetic core is more fully combined with the iron frame and the iron core, and therefore the problem that a magnetic circuit is dispersed or unstable due to the thickness tolerance of the magnetic core is solved.

The invention relates to a preparation method of a red light material based on a ZnO solid film, and relates to the technical field of micro-nano electronic luminescent device manufacturing, and the preparation method comprises the following steps: S1, substrate pretreatment; s2, constructing a vacuum environment; s3, introducing working gas; s4, thin film deposition; s5, taking out the sample; s6, primary annealing; s7, secondary annealing; and S8, obtaining a finished product. According to the preparation method of the red light material based on the ZnO solid film, the preparation cost is remarkably reduced, the technological process is simplified, and the problems that in the prior art, the bulk single crystal processing cost is high, the doping method process is complex, and large-scale production is difficult are solved. The preparation method has the advantages that the preparation method is simple, expensive single crystal raw materials are not needed, toxic or magnetic high-cost doping elements such as cobalt (Co) are prevented from being introduced, the green and low-cost manufacturing process is realized, and the preparation method is simple in process flow, convenient to operate, good in repeatability and stability and very suitable for industrial large-scale commercial production.

The invention belongs to the technical field of membrane separation, and discloses a composite nanofiltration membrane based on bidirectional interfacial polymerization and a preparation method and application thereof, the preparation method comprises the following steps: step 1, loading two-dimensional porous graphene on the upper surface of a porous support membrane to obtain a two-dimensional porous graphene layer / support layer composite membrane; 2, enabling the lower surface of the composite membrane to be in contact with a water-phase amine monomer solution, so that the water-phase solution infiltrates the supporting layer and is diffused upwards to the two-dimensional porous graphene layer; 3, the upper surface of the two-dimensional porous graphene layer makes contact with an organic phase monomer solution, an aqueous phase amine monomer and the organic phase monomer are subjected to an interfacial polymerization reaction in in-plane pore channels of the two-dimensional porous graphene, a porous graphene / polymer separation layer is formed, in-situ shrinkage and packaging of the in-plane pore channels of the two-dimensional porous graphene are achieved, and the composite nanofiltration membrane is obtained. The composite nanofiltration membrane provided by the invention has efficient interception and high permeation flux on antibiotics, and shows good application universality and flexibility.

The embodiment of the invention relates to a method and device for training a model based on reinforcement learning, and the method comprises the steps: inputting a sample question into a to-be-trained target model, and obtaining a first target reply; inputting the sample questions into a plurality of trained contrast models to obtain a plurality of contrast answers; the sample question comprises text content; inputting the sample question, the first target reply and any first contrast reply in the plurality of contrast replies into an evaluation model to obtain D relative preference scores of the first target reply on D preset evaluation dimensions relative to the first contrast reply; performing aggregation operation on the respective D relative preference scores of the first target reply relative to each contrast reply, and determining a first reward score corresponding to the first target reply; and updating a parameter value of the target model at least according to the first reward score.

This invention discloses an efficient magnetic domain refinement method for ultra-low loss oriented silicon steel, relating to the field of steel material technology. The method includes: raw material preparation; hot rolling and final rolling; multi-stage thermomechanical processing; controlled suppression phase formation; secondary re-junction and magnetic field-induced selective growth; surface microstructure fabrication; low-temperature domain refinement annealing and alternating magnetic field coupling; segmented cooling and quality inspection. This invention, through controlled nanoscale suppression phase engineering, forms a high-density and uniform nanoscale suppression phase within the matrix, serving as pinning sites for grain boundaries and subgrain boundaries. This controls grain boundary migration dynamics during high-temperature secondary re-junction, overcoming the problems of abnormal grain growth and microstructure instability caused by uneven distribution and large size dispersion of traditional suppression phases. This avoids the root cause of large magnetic domains, improves the controllability and repeatability of the secondary re-junction process, obtains a more uniform orientation grain size distribution, and reduces localized magnetic domain enlargement and iron loss fluctuations caused by uneven grain size.

The invention relates to the technical field of biomedical sensing, and discloses a tumor microenvironment multi-parameter monitoring method and device, a medium and equipment, and the method comprises the steps: applying an excitation magnetic field to a magnetic nanoprobe in a target area, and collecting a nonlinear magnetization response signal through an optical pump magnetometer probe array; performing harmonic decomposition and feature extraction on the nonlinear magnetization response signal to obtain a harmonic feature vector for representing nonlinear magnetization response; the harmonic feature vectors are input into a physical constraint inversion engine to be solved, synchronous decoupling is conducted, quantitative estimation values of at least two tumor microenvironment parameters of the target area are output, and the at least two tumor microenvironment parameters are any two or more of the pH value, the oxygen partial pressure, the local temperature and the magnetic nano probe concentration; the physical constraint inversion engine is constructed based on a Bayesian reasoning framework fused with a physical constraint regularization item. By means of the method, synchronous, high-precision and in-situ decoupling and monitoring of multiple parameters in the tumor microenvironment are achieved.

The utility model discloses a wax injection spiral conveying device which comprises a conveying module connected with a wax cylinder, the conveying module is provided with a wax conveying channel, an injection nozzle is arranged at the output end of the wax conveying channel, a feeding screw rod is rotationally arranged in the wax conveying channel, and the feeding screw rod is provided with a feeding hole. The feeding screw is in transmission connection with a driving element used for driving the feeding screw to rotate relative to the wax feeding channel. And when the feeding screw rod rotates relative to the wax feeding channel, wax liquid in the wax feeding channel is pushed to flow towards the nozzle. Under the action of the feeding screw, stable conveying of the wax liquid is guaranteed, and the wax injection amount can be adjusted by adjusting the rotating speed of the feeding screw.

To address the problems of existing technologies, this invention provides a highly stable catalyst with the structural formula Au / CuO@Cu-NaY. This catalyst is prepared by the following method: Rice husks are cleaned at room temperature to obtain substance A. Substance A is calcined to obtain substance B. Substance B is dissolved in NaOH solution to obtain mixture C, and NaAlO2 is dissolved in deionized water to obtain solution E. A Cu source is added to mixture C to obtain mixture D. Mixture D is added to solution E to obtain mixture J. Mixture J is aged to obtain mixture K. Mixture K is hydrothermally treated to obtain mixture L. Mixture L is washed with water to obtain product Cu-NaY. Cu-NaY is mixed with Au / CuO and ground to obtain the highly stable catalyst. The catalyst prepared by this invention maintains high catalytic activity and selectivity while overcoming the problems of catalyst deactivation and poor stability.

This invention discloses a redox-active metal-organic framework material, its preparation method, and its applications. The metal-organic framework material is prepared by a solvothermal method using bis(triphenylaminetetracarboxylic acid) and inorganic manganese compounds as raw materials, N,N-dimethylformamide, deionized water, and 1,4-dioxane as solvents, and hydrochloric acid as a catalyst. The metal-organic framework of this invention exhibits good crystallinity and thermal stability, and possesses reversible redox activity. Electrochromic devices prepared using this framework display three different color transitions.

This invention belongs to the field of microwave radar image processing technology, and relates to a method for inverting significant wave height based on wave period. First, a significant wave height calculation model is established with the wave period as input. Then, microwave remote sensing images of the sea surface are acquired and preprocessed, such as coordinate transformation (e.g., images from shore-based sea observation radar and shipborne navigation radar) and noise suppression. Next, the wave period is inverted from the preprocessed images using spectral analysis techniques. Finally, the inverted wave period is substituted into the pre-established model to calculate the significant wave height. This invention, by introducing the wave period as a key intermediate variable, closely correlates image features with ocean wave physical parameters, overcoming the shortcomings of insufficient accuracy and stability in existing direct inversion methods. It provides a physically meaningful, highly accurate, and easily operational method for obtaining significant wave height.

This invention belongs to the field of cognitive radio and UAV communication technology, and relates to a geographic information-assisted UAV transmission energy efficiency optimization method in a cognitive radio network. The method includes: constructing a UAV downlink communication system based on cognitive radio and geographic information assistance; initializing system parameters; during flight, the UAV acts as a secondary network transmitting node, using the licensed frequency band of the PU to transmit data to the ground SU; calculating the communication channel gain between the UAV and SU in each communication time slot, and calculating the communication rate between the UAV and SU in that time slot; calculating the interference channel gain between the UAV and the PU receiver in each communication time slot, and calculating the interference power between the UAV and the PU receiver in that time slot; calculating the total energy consumption of the UAV downlink communication system throughout the entire mission cycle; decomposing the optimization problem into three sub-problems, and solving the three sub-problems using the Dinkelbach algorithm and the alternating optimization algorithm to obtain the optimal solutions to the three sub-problems; updating the parameters of the UAV downlink communication system based on the optimal solutions. This invention, by combining geographic information and cognitive radio technologies, effectively improves the energy efficiency and security of the UAV communication system in a three-dimensional environment while ensuring the stability of PU communication and meeting the service requirements of the ground SU.

The application aims to provide a skirt lubrication characteristic simulation method considering piston and cylinder liner thermal deformation, comprising the following steps: setting piston second-order motion variable initial value, starting crank angle cycle; combining piston profile to calculate oil film thickness; calculating oil film pressure and micro-convex body contact pressure, using Gauss-Legendre integral to obtain oil film bearing capacity and micro-convex body contact force; calculating the force and torque of connecting rod to pin and other forces and torques at the current time through dynamic equation, solving the dynamic equation; judging whether the crank angle meets the cycle termination condition; judging whether the current working cycle meets the convergence condition, if not, updating the second-order motion variable initial value for the next calculation cycle, if yes, outputting the result. The application overcomes the problems of distorted calculation result and unstable solution under special conditions such as near explosion pressure and small minimum oil film value. It provides certain support for actual diesel engine piston skirt lubrication prediction and optimization design.

The application relates to the technical field of wind farm regulation, in particular to a large-scale wind farm grid-connection optimization regulation method and system based on real-time stability domain, which comprises the following steps: acquiring wind farm data in real time, constructing a wide-frequency aggregation impedance model of the wind farm online; acquiring equivalent impedance of a power grid, solving time-varying robust stability domain and calculating robust stability of a current operating point; calculating mixed sensitivity of each controllable variable, sorting the controllable variables according to values from large to small to form a regulation variable sorting table; taking the time-varying robust stability domain as a constraint, performing multi-time scale collaborative optimization according to the regulation variable sorting table, generating and outputting regulation instructions; and recalculating the robust stability after executing the regulation instructions to perform closed-loop verification. Through real-time data-driven modeling, time-varying robust stability domain solving and mixed sensitivity sorting, the application realizes online perception, evaluation and adaptive optimization regulation of wind farm grid-connection stability, and improves the wide-frequency small disturbance stability and operation safety of a large-scale wind farm grid-connection system.

The application provides a user environment scene recognition method, system and electronic equipment, comprising: sequentially completing multi-modal original data acquisition and alignment, noise reduction and normalization, multi-scale feature extraction, time sequence structure decision and dynamic network structure adjustment, through constructing time sequence consistency gating mechanism and dynamic structure interpolation control signal, realizing adaptive smooth adjustment of channel activation number and attention head number of a lightweight mixed backbone network, and then driving a learnable soft mask to sparsely schedule backbone network level calculation on demand, finally completing efficient and accurate environment scene recognition, the application effectively improves the calculation efficiency and inference accuracy of the scene recognition model under the condition that the terminal device resources are limited, and has good structure continuity and hardware adaptability.

The invention discloses a thermal activation type stable lithium complex lithium supplement additive as well as a preparation method and application thereof, and relates to the technical field of lithium supplement additives. The lithium complex lithium supplement additive disclosed by the invention is very stable in normal-temperature air and an electrolyte environment, the electrode preparation process and storage conditions are greatly simplified, and the production safety and the battery yield are improved; the lithium supplementing process is controlled by the temperature, so that the lithium supplementing time and degree are accurately regulated and controlled; the lithium supplement additive has high lithium supplement efficiency, complex decomposition is thorough, the utilization rate of released active lithium is high, most decomposition products are gas or neutral organic molecules capable of being dissolved in electrolyte, and high-impedance solid by-products cannot be left in an electrode; the lithium supplement additive disclosed by the invention is suitable for various high-capacity negative electrode systems, can effectively compensate huge first lithium loss of the high-capacity negative electrode systems, and is good in compatibility; the use of high-activity lithium metal or lithium-rich compounds is avoided, and the risks of combustion and explosion are reduced.

This invention discloses a rapid mooring device and method for dock ships, comprising a base assembly, a rotating component, a sliding force transmission component, a tensioning mechanism, a tie rod assembly, and a mechanical locking assembly. The rotating component and the sliding force transmission component constitute a multi-degree-of-freedom follower mechanism to adapt to changes in the force direction of the mooring line. The tensioning mechanism drives the sliding force transmission component to achieve tensioning and release. The mechanical locking assembly includes a jump plate and a wedge block assembly for rapid coarse adjustment and precise locking of the load. Through the above structure, the small boat can achieve adaptive force adjustment during the floating and bottoming processes of the dock ship, and complete the switch of load from driven bearing to mechanical bearing on the deck. The method includes connection, tensioning, adaptive adjustment, and mechanical locking steps. This solution requires no underwater operation, has high operational safety, high mooring efficiency, and is suitable for rapid mooring and release operations of large-tonnage small boats.

The invention belongs to the technical field of food-borne pathogenic bacterium detection, and discloses a preparation method of an electrochemical luminescence biosensor based on carbon material enhanced porphyrin hydrogel. The method comprises the following steps: synthesizing a sodium alginate-chitosan-TPPS (Thermoplastic Polystyrene) composite hydrogel; au NPs is prepared; modifying the electrode; and preparing the detection liquid. According to the invention, 5, 10, 15, 20-tetra (4-sulfophenyl) porphyrin is used as a functional material, the functional material is innovatively introduced into a sodium alginate-chitosan bi-crosslinking hydrogel system, the problems of poor stability and difficulty in modification of a water-soluble porphyrin material in sensing application are effectively overcome, and meanwhile, the conductivity and ECL signal strength of the porphyrin hydrogel are enhanced by adopting the carbon nanotubes, so that the sensing performance of the water-soluble porphyrin hydrogel is improved. Therefore, accurate detection of food-borne pathogenic bacteria represented by staphylococcus aureus is achieved, and the sensing electrode is easy and convenient to prepare, high in operability, rapid in response, high in sensitivity, high in controllability and suitable for on-site rapid detection and portable analysis requirements in the fields of food production and processing, circulation supervision, public health monitoring and the like.