32 results about "Technology research" patented technology

The invention relates to the technical field of engineering technology research and development, in particular to a risk assessment method for personalized marketing content for generative AI output. According to the method, firstly, feature extraction is carried out on marketing content data to obtain structured representation, and then preliminary screening is carried out through a preset rule to obtain a rule matching condition; inputting the feature data and the rule matching result into a trained neural network model for deep evaluation, and outputting a risk score and a risk type label; and calculating a model parameter update value based on a manual auditing result and a business key index. According to the method, the interpretability and the risk identification capability of evaluation are ensured through the combination of the rule and the model, and the dynamic adjustment of the evaluation standard is realized by introducing the business index and the online learning mechanism, so that the risk evaluation better meets the business requirements.

The invention relates to a computing network fusion technology research method and electronic equipment, and belongs to the technical field of equipment evaluation. The method comprises the specific steps that firstly, multi-source data in the equipment operation process are collected, and performance index data of an equipment manufacturer and user feedback information are combined; preprocessing the collected data, including data cleaning, feature extraction, normalization processing and feature dimension reduction based on a principal component analysis method, so as to reduce data redundancy and improve model training efficiency; then, constructing a health assessment model based on deep learning, adopting structures such as a convolutional neural network or a recurrent neural network, and introducing a dynamic weight adjustment mechanism to adapt to operation states of different devices; training the model by using the preprocessed data, and adjusting model parameters in real time when the data is updated; and finally, inputting equipment operation data acquired in real time into the trained model, generating an evaluation report including health grade division and future health state prediction, and providing early warning information and maintenance suggestions according to the evaluation report.

The invention relates to a key technical scheme intelligent screening and positioning method and system oriented to integrated circuit research and development, and the method comprises the steps: respectively extracting technical entities representing specific process steps and device structures and legal entities representing legal protection boundaries through building a semiconductor field heterogeneous data stream and utilizing a large language model; constructing a bimodal semantic topology network comprising technical association, legal association and cross-modal alignment edges; heterogeneous graph attention representation learning is executed, and deep semantic dependence between nodes is captured; generating a global semantic representation vector representing the logic consistency of the technical scheme based on the topological connection density and the cross-modal semantic alignment strength of the nodes; and finally, accurately positioning a key technical scheme based on the logic consistency confidence coefficient. According to the method, the process-protection logic consistency can be automatically verified, the problems that traditional keyword retrieval is loud in noise and a semantic model lacks logic support are solved, and objective and high-reliability data support is provided for technology pre-research, design avoidance and research and development path planning.

The invention belongs to the field of building technology research, and provides a steel truss girder transfer platform aiming at the problems that an existing transfer device is large in occupied field area and multiple in transfer links, the direction of a steel truss girder cannot be kept unchanged all the time in the transfer process, and accurate splicing of the steel truss girder is affected. The hydraulic lifting brackets are arranged on two sides of the direction adjusting vehicle; the direction adjusting vehicle comprises a driving base, an operation table and a rotating assembly connected with the operation table in a matched mode. The steel truss device can be directly arranged at the starting point position of the conveying rail through the direction adjusting vehicle, direction correction can be conducted, multiple transfer devices do not need to be matched to adjust the direction of the steel truss, operation is easy and fast, a rail used for adjusting the direction of the steel truss beam does not need to be arranged, the occupied area is small, and the construction space is saved.

The invention provides a multi-dimensional identification-multi-objective optimization waste salt disposal technology evaluation method and system. The evaluation method comprises the steps of data acquisition, weight calculation, model evaluation, multi-objective optimization and advanced scheme acquisition. The system comprises a data preprocessing module, a technology market evaluation module, a technology economy module, a technology benefit module, a technology environment influence module, a technology carbon emission module, a comprehensive evaluation module, an information output module and an information storage module. According to the evaluation method and system, aiming at waste salt disposal and resource research and development, a multi-level process technology is applied to carry out sub-item and combined evaluation, the difference of organic matter removal, salt separation and resource processes of the technology to be evaluated is identified, and an optimized target dimension and an advanced technical scheme are provided; the purposes of economic maximization, technology optimization and environmental influence minimization are achieved, and accurate countermeasures are provided for solid waste recycling technology research and development, industry development trend research and judgment and optimization upgrading.

This invention relates to the field of data processing technology, specifically including an interactive management method and system for cross-digital spaces in research and learning, comprising: setting up a knowledge graph and an application scenario network; establishing multi-level associations between the knowledge graph and the application scenario network to set up cross-knowledge links; and setting up a cross-digital space for digital interactive management. It addresses the technical problems of a lack of connection and interaction between science and technology exhibitions, science and technology learning, science and technology research and development, and application, resulting in low research and learning efficiency, disjointed understanding of the entire process of science and technology products, and an inability to meet the core needs of integrating theory and practice in digital research and learning. It achieves the technical effect of setting up a cross-digital space to accurately map theoretical knowledge to practical cases, meeting the research and learning needs of the entire process from basic learning to scientific research exploration, connecting and interacting between science and technology exhibitions, science and technology learning, science and technology research and development, and application, improving knowledge transfer efficiency and interactive experience, and providing research and learning groups with a coherent and three-dimensional cognitive path for science and technology products.

The utility model relates to the technical field of new materials, in particular to a new material technology research and development workbench which comprises a fixing plate, the upper end of the fixing plate is fixedly connected with a first connecting frame, the inner wall of the first connecting frame is rotatably connected with a threaded rod, and the rod wall of the threaded rod is sleeved with a sliding block in a threaded mode. The upper end of the first connecting frame is fixedly connected with a gear motor, the output end of the gear motor is fixedly connected with one end of a threaded rod, the outer wall of the sliding block is fixedly connected with a connecting plate, the lower end of the connecting plate is fixedly connected with a plurality of illuminating lamps corresponding to one another in position, and the upper end of the fixing plate is fixedly connected with a workbench body. On one hand, light dispersion can be avoided, illumination is more concentrated and effective, the illumination effect and visibility are improved, on the other hand, the situation that a user is dizzy due to the fact that the user directly looks at the illumination lamp can be effectively avoided, and then the working comfort and working efficiency are improved.

The invention relates to the field of oil reservoir engineering communication technology research, and discloses a calculation method and system for effective communication of an injection-production system under intelligent identification constraint, and the method comprises the steps: obtaining oil field injection-production comprehensive data, carrying out the standardized preprocessing of the obtained oil field injection-production comprehensive data, achieving the index statistics of the oil field injection-production comprehensive data, and achieving the effective communication of the oil field injection-production system. The injection-production relation between the injection-production well and the injection-production well pattern on each sand body plane is calculated through a ground effective injection-production well pattern and an underground effective injection-production well pattern in sequence according to the oilfield injection-production comprehensive data subjected to standardization pretreatment, and a one-element-one-convergence-element injection-production system mathematical model is established; according to the injection-production relationship between an injection-production well and an injection-production well pattern on each sand body plane, the attributes of an element injection-production system are determined under the constraint of an identification structure and lithology, the effective communication relationship and effective action time of the injection-production system are intelligently identified, and then parameters such as a water drive theoretical sweep area and a water drive reserve utilization area are calculated. The per capita working efficiency can be greatly improved, and the labor time-consuming cost is reduced.

The invention relates to the technical field of intelligent design and simulation, in particular to an intelligent design and simulation system for engineering technology research and development, which comprises an evolution trend extraction module, a dependency structure construction module, an instruction offset identification module, a working condition variable section positioning module and a matching relation screening module. Extracting the variation amplitude, the rate and the span in the stage design record, grouping to generate a trend label, constructing a trend continuous path, identifying a behavior offset fragment, positioning a high-density disturbance section, screening a matching path with a consistent direction, and outputting a simulation operation result. According to the method, data processing of direction change, rate fluctuation and boundary span is introduced, behavior trend grouping and path construction are completed, included angle matching of a target direction and a path trend is combined, a structural offset fragment and a high-density disturbance section are identified, and a matching path with continuous direction and consistent response is extracted; and the mapping precision and continuity between design and simulation are improved.

The present application relates to the technical field of engineering technology research and development, in particular to a global disaster risk dynamic assessment method for vulnerability of hazard-affected bodies, comprising the following steps: obtaining structure attribute, state, disaster loss, danger, exposure and source data, generating a hazard-affected body state sequence, correcting dynamic vulnerability representation value, generating a spatial vulnerability correction amount according to spatial correlation, calculating risk score and determining risk level in combination with a reliability correction coefficient, and updating the hazard-affected body state sequence or dynamic vulnerability representation value based on evaluation write-back data. In the present application, the hazard-affected body state change, historical disaster loss, spatial correlation, data reliability and evaluation write-back are included in the same calculation link, so that the vulnerability is converted from a static index to an evaluation basis that is dynamically corrected with time and space, the transmission ability of local anomalies to global risk calculation is improved, the influence of quality difference of multi-source data on the stability of risk level is reduced, and a traceable feedback correction closed loop is formed.

The application discloses a device and method for dredging conveying technology research, and belongs to the field of pipeline conveying technology research. The device comprises four parts of a sand hopper system, a recovery pool system, a pipeline conveying system and a measurement control system. The sand hopper system and the recovery pool system form a double-redundancy recovery system. In case of any failure such as blockage or valve jam of any one set of the recovery system, the device can be quickly switched to another set of the recovery system, thereby improving the convenience and safety of the experiment. The pipeline conveying system comprises a motor, a pump and a circulating pipeline and the like, and is used for providing circulating power of the sand-water mixture and a slurry passage. The measurement control system comprises a sensor, a control acquisition system and the like, and is used for controlling the equipment and measuring and adjusting key parameters such as pipeline flow rate and silt concentration in the process of silt injection, the circulating experiment and observation process and the recovery process. The application further discloses methods of sand adding, conveying experiment and sand recovery and the like when the dredging silt conveying experiment is carried out by relying on the device.

The utility model belongs to the technical field of toughness detection devices, and particularly relates to a toughness detection device for research and development of a new material technology, which comprises a turntable, a plurality of fixed tools arranged in a circular array mode and a plurality of guide rails, wherein the fixing tool is suitable for fixing a to-be-tested piece; the telescopic part is arranged on one side of the turntable, and the telescopic end of the telescopic part is connected with a roller; the rotating disc is suitable for driving the to-be-tested pieces on the fixing tools to move to the position below the rolling wheels in sequence during rotation. And the telescopic piece is suitable for driving the roller to press the to-be-detected piece downwards during retraction and pressing the next to-be-detected piece downwards after resetting. According to the toughness detection device for new material technology research and development, the to-be-detected pieces on the fixing tools are driven to move to the position below the roller in sequence during rotation of the turntable; and the telescopic piece drives the roller to press the to-be-detected piece downwards when retracting and presses the next to-be-detected piece downwards after resetting, so that the effects of high automation degree, high continuity and improvement of detection efficiency are achieved.

The invention provides a fracturing integrated digital twinning characterization method. The characterization method comprises the following steps: carrying out model data processing; carrying out oil reservoir environment fusion technology research on the underground model, and carrying out space fusion on a reservoir and a shaft in an underground three-dimensional field; and digital twinning integration is realized. Cross-business and cross-process full-life-cycle data integration is implemented, virtual-real interaction of digital twinning is achieved, and the difficult factors that at present, the number of fracturing construction departments is large, the related business field is complex, and ground and underground integrated means are lacked are effectively overcome.

The present invention relates to a technology valuation method specialized for research and development technology and an apparatus therefor, which enable fair technology valuation to be performed by appropriately applying risk factors according to technology research and development activities. The technology valuation method specialized for research and development technology, according to the present invention, is provided to perform a fair valuation of research and development technology by calculating a technology value with respect to technology being researched and developed, by calculating: a net present value of total sales (a) from the first year to an expected product life cycle period (n); a risk-adjusted net present value of research and development costs (b) from the first year to a research and development completion year (k); a cost (c) required for sales creation after research and development activities from a research and development completion year (k +1) to the expected product life cycle period (n); and a residual value (d) after a product life cycle (PLC) is terminated, subtracting the risk-adjusted net present value (b) and the cost (c) required for sales creation after the research and development activities from the calculated net present value of total sales (a), and then adding the residual value (d).

The invention discloses a micro-injection mold with a mold core position precise adjustment mechanism, and belongs to the technical research field of micro-injection molding and molds thereof. The invention aims to solve the problems that an upper mold core and a lower mold core cannot be accurately aligned due to processing and assembling errors of the existing one-mold multi-cavity micro injection molding filling balance regulation and control device, so that a melt flow path deviates, the filling is unbalanced, and the product quality consistency is poor. The micro injection mold comprises an upper mold, an upper mold core, a convective mixed filling balance regulation and control device insert, a lower mold core and a lower mold, a flow dividing structure is arranged in the convective mixed filling balance regulation and control device insert and divides the interior into two symmetrical flow dividing channels, the cross section of an inlet of each flow dividing channel is gradually reduced towards the cross section of an outlet, and the outlet deflects towards the wall face of the flow dividing channel. According to the invention, complete alignment of the multi-stage sub-runners during mold closing is effectively ensured, the filling balance is improved, and meanwhile, the machining flexibility and the alignment precision of the mold are remarkably improved. The micro injection mold is used for micro injection molding.

The invention discloses an identification method for experts and industry-university-research institutions in the key core technology breakthrough field. The method comprises the following steps: acquiring a scientific research literature lexicon in the key core technology field; based on the scientific research literature lexicon, constructing a domain expert knowledge network oriented to the key core technology to obtain domain expert data of key core technology attacks; constructing an identification network of an industry-university-research cooperation mechanism based on the key core technical field to select industry-university-research mechanism data to be cooperated; and obtaining a matching similarity between the field expert data and the to-be-cooperated industry-university-research institution data, and determining a field expert selected by the to-be-cooperated industry-university-research institution according to the matching similarity. The method solves the problems that an existing domain expert database is single and not detailed enough in data recording of domain experts, or limited to manual collection of personnel or registration of the domain experts, so that the acquired domain expert portraits are not accurate enough due to the lack of personal information, and the user experience is poor. Or the dimension of the field expert portrait cannot cover all aspects, and the technical field features related to the field expert portrait cannot be comprehensively described in a multi-dimensional manner; meanwhile, different subjects of industry-university-research science and technology projects are lack of data support of key core technical fields. An enterprise often encounters technical difficulties in research and development of new products or establishment of industry-university-research institutions and needs to seek field expert collaboration, and the industry-university-research institutions cannot accurately recognize field experts due to the fact that data information (such as internet information) or the information amount of a total data library is large. And the processing efficiency of searching specialists in specific technical fields by industry-university-research is greatly reduced.

The utility model belongs to the technical field of agricultural planting, and particularly relates to a seedling raising frame for agricultural planting technology research and development, which comprises a bottom plate and a stand column, the stand column is fixedly connected to the center of the top of the bottom plate, and a seedling raising device is arranged on the stand column. According to the seedling raising frame for agricultural planting technology research and development, when seedlings need to be illuminated, the sliding sleeves are rotated, the steel pipes are driven to rotate, then the seedling raising plates at the bottoms of the steel pipes are driven to rotate, the seedling raising plates on the sliding sleeves at different positions are arranged in a cross-shaped staggered mode, and therefore the seedlings on the seedling raising plates can be irradiated by sunlight, and cultivation and growth of the seedlings are better facilitated; an external water source is guided into the water receiving pipe and flows to the atomizing nozzles through the steel pipes to be atomized and sprayed out, and the steel pipes on the same side can be connected through the connecting hose, so that synchronous spraying irrigation is performed on a plurality of seedling raising trays, fertilizer water and even insecticide can be sprayed in the manner, and the seedling raising convenience is improved.

The present invention relates to a method and apparatus for evaluating the technical value of research and development technologies, which enables fair evaluation of technical value by appropriately applying risk factors associated with technology research and development activities. The method for evaluating the technical value of research and development technologies according to the present invention is provided to enable fair evaluation of research and development technologies by first calculating the net present value of total sales (a) from the first year to the expected product life cycle period (n), the risk-adjusted net present value of research and development expenses (b) from the first year to the research and development completion year (k), the costs required to generate sales after the research and development activities from the research and development completion year (k+1) to the expected product life cycle period (n) (c), and the residual value (d) after the end of the product life cycle (PLC).

The utility model discloses a working platform for ring electricity technology research and development, which comprises a supporting seat, the top of the supporting seat is movably connected with a supporting shaft, the outer wall of the supporting shaft is fixedly connected with a movable table, the outer wall of the movable table is provided with a slot, one end of the supporting shaft is fixedly connected with a driven belt wheel, and the other end of the supporting shaft is fixedly connected with a rotating shaft. A driving belt is arranged on the outer wall of the driven belt wheel, a driving motor is fixedly connected to the bottom of the supporting seat, and the device is provided with the supporting seat, the supporting shaft, the movable table, the inserting groove, the driven belt wheel, the driving belt, the driving motor, the driving shaft, a driving gear, a driven shaft, a driving belt wheel and a driven gear; the movable table can be driven to rotate intermittently at the same angle conveniently, research and development work can be carried out on different faces of the movable table conveniently, synchronous installation, insertion and other work can be carried out in the test waiting stage conveniently, continuous research and development work can be further achieved, and work efficiency is improved.

The utility model relates to the technical field of display boards, and discloses a display board for mechanical equipment technology research and development, which is characterized in that universal wheels are mounted at the lower end of a base, a protective shell is mounted at the center of the upper end of the base, supporting legs are mounted at the joint of the protective shell and the base, a main display board is mounted at the side end of the protective shell, and a vertical U-shaped plate and a limiting block are mounted on the surface of a threaded pipe; one end of the limiting block is fixedly connected with the connecting block, the other end of the connecting block is connected with the vertical U-shaped plate, the fixing columns are installed on the inner faces of the two ends of the vertical U-shaped plate, the main display plate is installed between the two fixing columns, the transverse U-shaped plate is installed in the middle of the two ends of the vertical U-shaped plate, and the lower faces of the two ends of the transverse U-shaped plate are connected with the long movable columns. The other end of the long movable column is connected with the auxiliary display board, and through the design of a gear sliding structure and a thread lifting structure, the practicability and adaptability of the equipment are improved.

The utility model relates to the technical field of stem cell research, and discloses a cell spinner bottle rack for stem cell technical research, which comprises a transfer box, a fixed base is arranged in the transfer box, first connecting pieces are fixedly connected to the periphery of the upper end of the fixed base, and folding frames are arranged on two sides of the upper end of the fixed base. The two ends of the two folding frames are rotationally connected with the interiors of the four first connecting pieces correspondingly, the other two ends of the two folding frames are rotationally connected with second connecting pieces correspondingly, a placing plate is slidably connected to the upper portion of the interior of the transfer box, and the periphery of the lower end of the placing plate is fixedly connected with the upper ends of the four second connecting pieces correspondingly. When the sample bottle transfer device is used for transferring sample bottles, the placing plate can be adjusted to adapt to different types of sample bottles, so that the practicability of the device is greatly improved, and the transfer cost is reduced.

The invention provides a special server for technology research and development, and relates to the field of servers, the special server comprises a server shell, and air inlet holes are formed in the left sides of the front end face and the rear end face of the server shell; automatic cleaning mechanisms are arranged on the front end face and the rear end face of the server shell and located outside the air inlet holes. Through the arrangement of the automatic cleaning mechanism, when sundries accumulated near the air inlet hole are cleaned, a worker does not need to hold a brush by hand for sweeping, the workload of the worker is relieved, and operation is more convenient and faster; through the arrangement of the pushing part, the cleaning effect is improved, the phenomenon that the air inlet holes are blocked by impurities such as dust is effectively avoided, and the ventilation effect of the air inlet holes is further improved; the problems that at present, when sundries near an air inlet hole of a server shell are cleaned, a worker needs to hold a brush to sweep away the sundries, so that operation is tedious, dust is easily swept into the air inlet hole by the brush and is not easily found by people, and the ventilation effect of the air inlet hole is affected are solved.

The application provides a method for evaluating development potential of a regional thermal reservoir, which is used for guiding comprehensive development of the regional thermal reservoir by combining historical geothermal well data with thermal reservoir analysis; the method is used for improving overall development benefit of the geothermal field and realizing efficient and low-cost development mode of the regional sandstone thermal reservoir geothermal resource by means of reservoir logging evaluation method and application technology research of the sandstone thermal reservoir; the research result is used for guiding comprehensive development of the regional thermal reservoir and is beneficial to large-scale development and utilization of the widely distributed sandstone thermal reservoir geothermal resource.

The invention relates to the technical field of fabricated roads, in particular to an H-shaped steel beam lattice supporting unbonded prestress fabricated road and a construction method, a process method is optimized, and structural design and key technology research work of an H-shaped steel beam lattice supporting system modular fabricated road are implemented. The overall technical scheme follows the principles of H-shaped steel beam lattice type supporting, cast-in-place conversion section reinforcing joints, efficient hoisting of integrated prefabricated shear wallboards with curbstone beams, L-shaped steel hanging beams assisting in steel bar mesh in place, cross arrangement of longitudinal and transverse unbonded prestressed tendons, multi-hole-site high-pressure grouting and comprehensive pavement of asphalt surface layers, and engineering practice is combined. Research and development and application of a new technology are enhanced, a new technology system is constructed, a technical standard is expected to be formed, and reliable technical support is provided for high-quality development of the technical field of road engineering in China for industry reference.

The utility model relates to the technical field of biological cell observation, and provides an observation desk for stem cell technology research, which comprises a working table, a support plate is fixedly connected to one side of the top of the working table, a mounting plate is fixedly connected to one side of the top of the support plate, a driving motor is fixedly connected to the top of the mounting plate, and the driving motor is fixedly connected to the other side of the top of the working table. An adjusting assembly is arranged at the upper end of the other side of the workbench, and a microscope is arranged at the top of the adjusting assembly. According to the observation table for the stem cell technology research, the inclination angle of a microscope can be adjusted through the adjusting assembly, cells in a culture bottle can be observed conveniently, and under the matching action of a driving motor, a rotating rod, a connecting disc, a fixing disc, an electric push rod, a connecting column, an installation block, a clamping jaw, a sliding rod, a damping rod and a spring, the cells in the culture bottle can be conveniently observed; the culture bottle can be effectively prevented from being damaged due to too large clamping force of the clamping jaws, the culture bottle is prevented from being thrown out due to too large centrifugal force, and the practicability of the device is improved.

The invention belongs to the field of geochemical experiment technology research in hydrocarbon source rock research, and discloses a method for determining the content of organic carbon in hydrocarbon source rock. The method comprises the following steps: (1) collecting a sample; (2) crushing the sample; (3) sample screening: screening a sample with the crushed particle size of 0.075 mm to 0.18 mm; (4) weighing the sample: adopting a 1 / 10000 electronic balance; (5) dissolving the sample: soaking the sample in acid for 24 hours, heating the sample in a water bath pan, controlling the temperature to be about 80 DEG C, ensuring complete reaction of inorganic carbon, and adding acid into each crucible one by one; (6) washing the sample; (7) drying the sample; and (8) testing the sample: calibrating the instrument by using the standard sample, making one parallel sample for every 10 samples after the instrument is stable, and checking whether the results are consistent or not. Each key node is necessarily improved, so that the influences of rock sample loss, pollution and the like in the measurement process are reduced, and the efficiency is more than two times of the original efficiency; the experimental error is reduced, the rock sample separation is accurate, the operation frequency is reduced, and the use amount of the rock sample is only 1 / 2 of the original use amount.

The application provides a multi-source language front-end science and technology knowledge graph construction method and system and a storage medium, wherein the steps of the construction method comprise the following: firstly, automatically capturing multi-lingual front-end science and technology data information from the Internet; then, performing Chinese translation of the captured front-end science and technology data information in corresponding languages; then, performing data screening on the translated front-end science and technology data information to obtain Chinese version front-end science and technology data information; then, performing data processing and mining on the obtained Chinese version front-end science and technology data information, extracting keywords between Chinese texts and mining relationships between concepts; and finally, obtaining a front-end science and technology knowledge graph through a visualization tool. The application can avoid language barriers, automatically generate a dynamic front-end science and technology knowledge graph, enable the public to easily understand foreign front-end science and technology research, and provide a reference for research in related fields.

The invention discloses a difficult-to-use reserve use limit prediction method based on an Xgboost gradient boosting algorithm, and the method comprises the following steps: S1, constructing an exclusive database; s2, data preprocessing; s3, constructing a prediction model based on an Xgboost gradient lifting algorithm; s4, evaluating and verifying the prediction model; and S5, predicting a future use limit. The method has remarkable operability, is wide in application range, and solves the problem of insufficient precision of a traditional empirical method. The method is wide in application prospect, can cover low-permeability, extra-heavy oil, thin-difference layers, low-oil-column and other types of resources, is deeply integrated into an intelligent and digital system of an oil field, realizes real-time prediction and intelligent regulation and control, promotes upgrading of related industries such as geological data service and low-carbon technology research and development, and has a wide application prospect under the background of global energy transformation. Core technical support is provided for cost reduction and efficiency improvement of energy enterprises and national energy safety strategy, and economic potential and social value are remarkable.

The invention discloses a federated learning model backdoor attack method based on parameter analysis, and belongs to the technical field of federated learning security. According to the technical scheme, a group of candidate parameters with the minimum influence on task performance are recognized from model parameters through a parameter importance analysis module; respectively calculating activation features of the backdoor image and the clean image through an activation difference calculation module during model training so as to obtain an activation difference matrix introduced by the backdoor image and the clean image due to a backdoor trigger; and the parameter manipulation scaling module performs flipping or scaling operation on the corresponding parameters according to the mapping relationship between the activation difference and the candidate parameters so as to ensure that the expected backdoor behavior can be effectively triggered. The method has the advantages that the problem that an existing method lacks backdoor durability and vulnerability facing a defense mechanism in a global model is solved; the method has the advantages of high attack success rate, strong durability, strong concealment, prominent robustness to a defense mechanism, adaptation to a complex data environment, and promotion of technical research and social security.

The invention discloses a method for evaluating the influence of pressure increasing operation of a geological energy storage reservoir on the sealing performance of a well cementation cement sheath, is applied to the field of geological energy storage reservoir shaft engineering technology research, and aims to solve the problem of lack of reasonable evaluation of the influence of the pressure increasing operation of the geological energy storage reservoir on the sealing performance of the well cementation cement sheath in the prior art. The method comprises the following steps: firstly, establishing a casing-cement sheath-stratum mechanical model, then preparing a set cement-steel block and set cement-rock combination sample, then applying an alternating load to the combination sample based on injection-production working conditions before and after pressure increasing, and synchronously carrying out an interface permeability test; and the influence of pressure increasing operation on the sealing performance of the well cementation cement sheath is evaluated through the change of the interfacial permeability of the assembly sample.