11 results about "Technology research" patented technology

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.

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 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 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 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 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 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 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.

This invention discloses an apparatus and method for research on dredging and conveying technology, belonging to the field of pipeline conveying technology research. The apparatus comprises four parts: a sand hopper system, a recovery pool system, a pipeline conveying system, and a measurement and control system. The sand hopper system and the recovery pool system form a dual-redundant recovery system. If any recovery system experiences blockage or valve jamming, the system can be quickly switched to the other recovery system, improving the convenience and safety of the experiment. The pipeline conveying system includes a motor, pump, and circulation pipelines, providing the circulation power and slurry channel for the sand-water mixture. The measurement and control system includes sensors and a control acquisition system, used for equipment control and measurement and adjustment of key parameters such as pipeline flow rate and sand concentration during the sludge injection process, circulation experiment and observation process, and recovery process. This invention also discloses methods for sand addition, conveying experiments, and sand recovery when conducting dredging sludge conveying experiments using this apparatus.

The utility model provides a new material technology research and development workbench, and relates to the technical field of new material technology research and development workbenches. When the height of the research and development table needs to be adjusted, the transmission motor is started, the output end of the transmission motor drives the connecting block to rotate, then the rotating rod and the idler wheel connected with the rotating rod rotate around the output shaft of the transmission motor, and the idler wheel slides in the limiting ring; when the illumination angle needs to be adjusted, an electric push rod is started, the output end of the electric push rod pushes a rack to do linear motion, the rack is meshed with a gear rotationally connected to the supporting base, the linear motion of the rack is converted into circumferential rotation of the gear, and therefore the illumination angle can be adjusted. And as the illuminating lamp is fixed on the gear, the gear rotates to drive the illuminating lamp to rotate by taking the supporting seat as an axis, so that the illuminating angle is flexibly adjusted.