25 results about "Experimental research" patented technology

The application discloses a modeling and simulation method for surface morphology fractal growth of a nano-silver flexible film, and steps are as follows: 1, establishing a nano-silver flexible film surface morphology fractal growth model conforming to the surface morphology fractal growth of the nano-silver flexible film; 2, calibrating parameters of the model according to electron microscope scanning image data of the nano-silver flexible film obtained through experiments; and 3, verifying effectiveness and applicability of the model for simulating the surface morphology fractal growth of the nano-silver flexible film by using a morphology fractal dimension measurement technology.The model for the surface morphology fractal growth of the nano-silver flexible film can quickly simulate the surface morphology growth process of the nano-silver flexible film prepared by an in-situ reduction method, and can simulate the surface morphology fractal growth process of the film under different silver ion concentrations and reduction reaction time parameters.The simulation result of the model can guide experimental research on preparation of the nano-metal flexible film and accelerate the optimization speed of the preparation process.

The invention discloses a method for establishing a mouse radioactive jawbone injury animal model, which comprises the following steps of: performing tooth extraction operation, performing radiation treatment after one day, and performing Micro-CT (Computed Tomography) scanning, intraoral examination and histopathologic detection on the lower jawbone on the thirteenth day after radiation so as to determine that the radioactive jawbone injury mouse model is successfully constructed. The animal model has the advantages that the pathological process of human early radioactive jaw necrosis is accurately simulated; the model is stable, good in repeatability and suitable for large-scale experimental research; and a reliable, short-cycle and convenient-to-operate animal model is provided for the mechanism research of radioactive jaw necrosis and the development of new drugs.

The application discloses a target plate clamping device and relates to the technical field of aircraft anti-penetration performance experimental research, which comprises a supporting seat, at least one pair of oppositely arranged fixing bosses, at least one pair of oppositely arranged loading blocks and adjusting bolts. The supporting seat has a first surface. The fixing bosses are fixed to the first surface, and each fixing boss is provided with a first through hole in the direction of opposite arrangement. The opposite arrangement direction of each pair of loading blocks is parallel to the opposite arrangement direction of the corresponding pair of fixing bosses. Each pair of loading blocks is located between the corresponding pair of fixing bosses, and each pair of loading blocks is movably attached to the first surface in the direction of opposite arrangement. An installation hole is formed in the loading block in the direction perpendicular to the first surface. A threaded hole is formed in the end of the loading block close to the adjacent fixing boss. The adjusting bolt is screwed through the first through hole and is screwed with the threaded hole. The adjusting bolt is used for driving the loading block to move so as to apply a force to the target plate.

The invention discloses a grating sensor performance parameter experimental research device which comprises an aluminum alloy fixing plate and further comprises a first displacement table fixing base and a second displacement table fixing base which are located at the top of the aluminum alloy fixing plate, and a first translation assembly, a second translation assembly and a frame body assembly are arranged at the top of the aluminum alloy fixing plate; according to the grating sensor performance parameter experimental research device, CCD imaging changes after the distance of the structure is adjusted, the influence of grating sensor performance parameters on imaging results is researched by observing CCD image changes, and the problem that the grating sensor performance parameters are lack of experimental research is solved; a foundation is laid for research and development of high-precision, high-resolution and quick-response grating measurement products, and the practical requirements of grating sensor research and development are met.

The application provides a method for identifying micro-aggregate structure in a heavy oil molecule simulation trajectory, which comprises the following steps: analyzing a molecular dynamics trajectory, identifying aromatic ring structures in heavy oil molecular components and calculating geometric centers of the aromatic ring structures, combining periodic boundary conditions, and applying an improved DBSCAN clustering algorithm to realize automatic identification and clustering of the aggregates; the clustering results are post-processed and optimized, the final aggregate set is generated after merging and sharing clusters, and the number, size distribution, morphological characteristics and dynamic evolution information of the aggregates are analyzed based on the structural characteristics of the aggregates. The method can accurately capture the pi-pi stacking behavior of heavy oil molecules, and further reveal the morphological characteristics, dynamic evolution law of heavy oil micro-aggregates and the influence of the micro-aggregates on the apparent viscosity of heavy oil, thereby providing theoretical support for the analysis of the viscosity-causing mechanism of heavy oil and the design of viscosity reducers, and complementing experimental research, and promoting the efficient development and green utilization of complex heavy oil systems.

The application discloses a method for constructing a digital rock gene library based on massive experimental data, and comprises the following steps: collecting different typical rock samples, carrying out relevant experimental research, obtaining relevant experimental data of the typical rock samples, and processing the relevant experimental data to form rock standardized data; collecting typical geological disaster data occurring in history and processing the geological disaster data to form historical disaster standardized data; collecting real-time dynamic monitoring data of the current geological disaster; and fusing and analyzing the three kinds of heterogeneous data sources and uniformly processing the three kinds of heterogeneous data sources to form the digital rock gene library. The application adopts the three kinds of heterogeneous data sources to construct the digital rock gene library, makes up for defects that data is incomplete and methods are single in the existing rock mechanics field, and leads to different analysis results, has strong broad-spectrum and high accuracy.

The invention belongs to the technical field of plant disease prevention and control, and particularly relates to application of epicatechin and protocatechuic acid in prevention and control of citrus huanglongbing. Through systematic experimental research and application verification, it is found that epicatechin and protocatechuic acid can remarkably inhibit the number of citrus huanglongbing pathogenic bacteria, have a good synergistic effect, can remarkably improve the overall health condition of citrus trees and have excellent application prospects and popularization value. As epicatechin and protocatechuic acid have the characteristics of being natural, environment-friendly and efficient, the epicatechin and protocatechuic acid show important application potential in the field of prevention and treatment of the citrus huanglongbing, and are expected to become novel key tools in the field. The discovery not only provides a new thought for green prevention and control of the citrus huanglongbing, but also provides powerful technical support for sustainable development of the global citrus industry, and is of great significance for guaranteeing stable development of the industry.

The present disclosure provides a wellbore instability analysis method based on big data, which relates to the field of wellbore instability. The wellbore instability prediction based on big data analysis and deep learning, combined with existing wellbore instability theory and experimental research results, finds the main control factors and related factors of wellbore instability in the studied block. Based on data classification, a big data model is established to improve the accuracy of analysis and prediction through big data learning. Through the application of the big data model, the deep learning technology is used for regional wellbore instability evaluation and research, and finally the regional wellbore instability evaluation and prevention technology based on big data is formed. The wellbore instability analysis tool based on big data analysis mainly provides the safety density window for preventing wellbore instability, the control analysis of hole diameter change, the optimization of drilling fluid performance and additive dosage, adjacent well data analysis, ECD analysis and drilling time effect analysis through data analysis, so as to reduce the hydration swelling effect of the target formation rock and prevent wellbore instability. The present disclosure is suitable for wellbore instability prediction.

The invention relates to a bacterial colony intelligent analysis method and device based on deep learning and a storage medium, which are applied to the technical field of microbiological detection and image analysis, and comprise the steps of performing model optimization on the characteristics of a bacterial colony image based on a YOLOv11 deep learning model in combination with a transfer learning method, remarkably improving the accuracy and robustness of bacterial colony detection, and improving the accuracy and robustness of bacterial colony detection. The problems of missing detection and false detection caused by overlapping of bacterial colonies, various forms and complex backgrounds can be effectively solved; the method supports the simultaneous recognition and classification statistics of a plurality of bacterial colonies, automatically generates a structured Excel report containing rich information, does not need manual secondary data arrangement, improves the standardization and traceability of bacterial colony analysis, and provides reliable data support for experimental research and detection evaluation. The full-process automation of bacterial colony detection, classification, counting and report generation is realized, manual intervention is not needed, the labor intensity of workers is greatly reduced, the bacterial colony analysis efficiency is improved, and the high-throughput detection requirement is met.

This invention relates to a base for ex vivo mouse brain slices with a specific angle and its design method, belonging to the field of design and manufacturing technology of life science experimental research equipment. It includes a hollow cylinder with a beveled surface on one side, the beveled surface having a specific angle, i.e., the angle between the inclined surface and the horizontal base is a specific value for the experimental research; the inner radius of the hollow cylinder is 5mm, the thickness is 0.5mm, and the total height is 20mm. This invention has a simple structure, low cost, is suitable for ex vivo mouse brains in a normal state, and allows for convenient and rapid replacement. It is reusable and can meet the needs of researchers, obtaining the target slice area and ensuring that the ex vivo brain slices contain the complete neural pathways required for the research.

The present application relates to a kind of ore-forming fluid transport and accumulation process simulation experimental device and method, belong to deposit geological technical field.The device is used to simulate the migration path of ore-forming fluid in the internal fault fold structure, transport and accumulation process, the spatial distribution of the formation of ore body / mineralized zone and ore-forming characteristics, explore the occurrence regularity of the internal structure system of ore body / mineralized zone, provide theoretical reference for actual ore body mining.Through systematic experimental research, more comprehensive and profound understanding is provided for deposit geological theory research and practical operation.In actual mineral exploration and development, the use of this simulation device helps to analyze and predict favorable exploration targets and target area, and provides more scientific and reliable technical support for mineral exploitation.

The invention discloses an experiment teaching system and method based on computer vision and sensor technology, and relates to the technical field of experiment teaching. According to the invention, definition and coverage support are carried out on multi-modal digital experiment contents, including implementation of experiment videos, experiment data, experiment courseware and experiment blackboard writing; the experiment teaching complexity of teachers is reduced, and the experiment classroom information transmission efficiency is effectively improved; on the basis of realizing a synchronous experiment process and data traceability, data fusion and intelligent inference are realized, and subjectivity and one-sidedness of evaluation in a current experiment operation process are solved; application mode derivation under various topologies is provided, and various experiment teaching scenes are covered; the system can be widely applied to the fields of experiments and related education, such as science education in a primary school stage, science teaching in a middle school stage, experiment operation evaluation, practical teaching in a vocational education stage, experiment research in colleges and universities and the like, and has great social influence and practical significance.

The present application belongs to the technical field of geochemistry research in the field of petroleum exploration and development, and discloses a method for analyzing the causes of hydrogen sulfide in offshore oilfields and a method for experimental research on treatment measures, which effectively solves the problems of repeated work, logical confusion and the like in the causes and treatment of hydrogen sulfide in offshore oilfields. The method for experimental research on the causes of hydrogen sulfide in offshore oilfields comprises: (1) oil and gas source analysis; (2) discrimination of the causes of thermal chemical reduction of sulfate; (3) discrimination of the causes of thermal cracking of organic matter; (4) discrimination of the causes of microbial sulfate reduction; and (5) discrimination of the causes of thermal recovery. Different treatment measures are adopted according to different causes of hydrogen sulfide. The present application can accurately and reliably determine the causes of complex hydrogen sulfide in offshore oilfields by using various experimental analysis methods and simultaneously establishing a systematic research and analysis process.

The application belongs to the technical field of material dynamic mechanical property experiment clamp and provides a die device for impact forming experiment research of horizontal plate sample on a Hopkinson bar, which comprises a supporting part and an impact die part; the supporting part comprises a cushion block for placing the impact die part; the impact die part comprises a left impact die, a left pressing plate and a right pressing plate which are arranged on the cushion block correspondingly; the left pressing plate is located between the left impact die and the right pressing plate; and the left impact die is used for contacting with an incident rod of the Hopkinson bar. The die device for impact forming experiment research of horizontal plate sample on the Hopkinson bar has ideal use effect for impact forming experiment of difficult-to-deform plate materials under high strain rate.

The invention discloses a rock impact test method considering cyclic damage history, which comprises the following steps: (1) under a preset quasi-static graded cyclic loading-unloading path, selecting an impact insertion opportunity according to a dimensionalized cyclic phase; (2) realizing a target dynamic strain rate and peak stress by adopting pulse shaping and energy calibration; (3) carrying out data processing by using a three-wave method and static-dynamic energy decomposition; (4) taking force balance and strain rate stability as receiving criteria; and (5) constructing a unified evaluation framework of the coupling energy index and the damage variable so as to obtain the strength / rigidity degradation, energy dissipation and damage mode evolution law of the material under the combined action of multiple cycle history and transient impact. According to the method, only the process and parameter control are limited, the specific device structure is not limited, and the method has the advantages that the process can be copied, parameters can be traced back, and indexes can be quantified, and is suitable for experimental research and standardized comparison of stability and impact resistance evaluation of underground engineering surrounding rocks.

The invention belongs to the field of safety culture education, and particularly discloses a safety culture construction teaching experiment research method and system. The system is based on a modular design framework, five core experiment modules are constructed around accident case analysis, safety culture similarity and similarity comparison, training design, carrier design and evaluation indexes, and functions of accident cause '2-4' model analysis, safety culture element diagnosis and improved strategy design are integrated. The system supports multi-level authority management, the learning depth is ensured through an experimental task point forced completion mechanism and page shortest dwell time limitation, and teaching closed-loop management and dynamic feedback are realized by combining automatic generation of an experimental report, intelligent scoring of after-class exercises and multi-dimensional data statistics of a teacher end. Through a mixed teaching mode and interactive task design, the internalization ability of students to the safety culture theory is effectively improved, the systematic analysis and practical innovation ability of enterprise safety culture construction is enhanced, and the cultivation of the practical innovation ability of the students is improved.

The application discloses a distributed semantic trajectory similarity connection method, which comprises the following steps: establishing a global index for positioning semantic similar trajectories in two data sets from the text dimension, the time dimension and the space dimension; selecting the pruning boundary of text similarity, time similarity and space similarity according to a given similarity threshold and the similarity weight value of each dimension; pruning the global index process, and batch-pruning trajectory pairs which lack common text items, have a time distance lower bound greater than the time boundary and have a space distance greater than the space boundary; based on the trajectory summary, re-pruning the trajectory pairs in the local index space node after batch-pruning; reconstructing all trajectories, calculating the real similarity between the trajectories and obtaining trajectory pairs satisfying the similarity threshold constraint for the candidate trajectory pairs after re-pruning; and the extensive experimental research on the real world semantic trajectory set shows that the method is obviously superior to the baseline in the efficiency and scalability.

Using a bending test with enhanced measurement accuracy, this experimental study involved testing partially sheathed composite steel beams with and without prestressing and without openings on the vertical plate. The bending strength and behavior patterns were also analyzed. The new technique for these composite beams proved to be an effective bending system. The steel-constructed structure significantly increased the bending capacity of the sheathed beam, while the prestressing of the cables was dependent on the steel's stress ratio. An infinite-scale analysis was conducted to study the behavior up to failure of a partially supported and partially covered composite beam subjected to a constant symmetrical load. Three-dimensional models were then analyzed using finite-element software to assess the beam's behavior under load deflection and failure conditions. The methodology employed was nonlinear gear and nonlinear geometric analysis based on repeated load incrementing. Twelve models were analyzed using this method to verify their potential and effectiveness. The results obtained using finite element models and failure methods were compared with experimental results. Good correlations were found between finite element analysis and experimental results.

This invention relates to an experimental apparatus and method for studying the durability of concrete under the coupled effects of tides and waves, belonging to the research field of key issues in the durability of concrete structures. It includes a novel automated simulation experimental apparatus for simulating the real marine erosion environment under the combined effects of tides, waves, and sea breezes; and a method for testing the durability of concrete in complex marine environments. This invention can be used to conduct experimental research on the durability of concrete in complex marine environments under the coupled effects of tides and waves. It realizes the simulation of complex marine environments under the combined effects of tidal cycles with wave periods measured in seconds and high-frequency wet-dry cycles of waves. Simultaneously, it significantly reduces the complexity of traditional tidal and splash cycle simulation devices, as well as the construction and maintenance costs of equipment. It features simple operation and ease of use.

The application discloses a kind of liquid environment in ultrasonic auxiliary scratch test device and method, it uses ultrasonic vibration auxiliary technology, combines motion control platform and electric two-dimensional sliding table system, realizes the high-precision simulation of tool in liquid immersion condition and the accurate regulation and control of scratch process parameter.By accurate force measurement, the mechanical evolution process of burr formation under liquid immersion condition is collected in real time, a new experimental research method is constructed for revealing material removal mechanism and liquid immersion burr formation law, which significantly improves the experimental controllability and data reliability of burr formation mechanism research under liquid immersion condition.

This invention belongs to the field of rock mechanics physical modeling technology, and discloses an artificial rock sample physical model material, its preparation method, and its application. The raw materials for preparing the artificial rock sample physical model material include silicate cement, aggregates, and additives. The aggregates are selected from at least one of quartz sand, standard sand, and fly ash. The additives include water-reducing agents and defoaming agents. The artificial rock sample physical model material of this invention has mechanical properties similar to the matrix and interlayers of natural shale, and can be used to prepare a layered terrestrial shale physical model by layer-filling the artificial rock sample physical model material. This physical model can be used for experimental research in rock mechanics and rock physics, providing reliable and repeatable experimental materials for evaluating the fracture development characteristics and compressibility of complex layered terrestrial shale, and also providing a scientific basis for the correctness and reliability of the physical simulation of layered terrestrial shale.

The invention discloses a physical simulation experiment method for slope deformation and instability induced by strip mine slope coal pressing recovery. The physical simulation experiment method comprises the steps that selection of an experiment research unit and a simulation experiment device are prepared; mining cave construction experiment parameters are designed; the similar materials are prepared and piled according to the preset model shape and size, compaction is conducted in the closed space of the test bed, the compactness and uniformity of the model are ensured, and the actual geological conditions are simulated; simulating an open excavation process on the three-dimensional model and the two-dimensional model by adopting a mining fixed-axis punching and reporting system, and gradually carrying out tunnel copper group construction simulation according to a designed excavation sequence and excavation parameters; a panoramic phase three-dimensional laser scanner, a high-resolution digital camera and a deep space micro imaging system are comprehensively adopted to realize the whole-process three-dimensional monitoring of the deformation and damage of the end slope stope slope. The slope deformation instability mechanism is comprehensively revealed, the slope stability prediction accuracy is improved, the pressed coal recovery scheme is optimized, and the mine production safety risk is reduced.

The present application relates to a kind of reservoir compressibility evaluation method and system considering shale lamina development characteristics, belong to shale oil and gas development geology field;Including: step 1: the experimental study of the influence of shale lamina development characteristics on mechanical properties;Step 2: the influence of shale lamina on tensile properties is researched;Step 3: the influence of shale lamina on compressive properties is researched;Step 4: the longitudinal fracturing fracture network layer-penetrating physical simulation experiment considering lamina stress barrier zone;Step 5: the longitudinal fracturing fracture network layer-penetrating finite element numerical simulation considering lamina stress barrier zone;Step 6: the influence law of lamina development characteristics on the behavior of hydraulic fracture layer-penetrating is researched;Step 7: the fracturing property evaluation index of shale reservoir is established;Step 8: target block dominant lamina combination distribution position and reservoir compressibility evaluation.The present application realizes the maximum of shale gas development's reserve producing rate, recovery efficiency, yield rate, provides theoretical basis and technical support for efficient development of shale gas reservoir.

The application provides an experimental device and method for multi-crack stress distribution visualization. The experimental device comprises a photoelastic experimental mechanism, a three-way stress loading mechanism, a horizontal stress clamping mechanism and a crack body internal pressure maintaining mechanism. The horizontal stress clamping mechanism adopts four numerical control hydraulic clamping components which are uniformly distributed around the experimental specimen to maintain stress loading of the experimental specimen in two mutually perpendicular horizontal directions. The crack body internal pressure maintaining mechanism can maintain the internal pressure in the cracks of the experimental specimen. The experimental method adopts the experimental device for multi-crack stress distribution visualization to carry out experiments. The beneficial effects of the application include: the stress distribution and stress interference of multiple cracks under the conditions of triaxial stress and internal pressure in the cracks can be realized in indoor experimental research.

The utility model relates to the technical field of converter steelmaking experiment research devices, and particularly discloses a converter steelmaking experiment research device which comprises a first base, a second base and a third base which can be spliced, as well as a converter control cabinet, an experiment furnace body and a placement table which are respectively arranged on the first base, the second base and the third base, wheel grooves are formed in the bottoms of the first base, the second base and the third base respectively, and liftable driving wheel assemblies are arranged in the wheel grooves; the driving wheel assembly comprises a driving wheel installed in the wheel groove and an electric push rod connected with the driving wheel, and the electric push rod is embedded in the bottom of the wheel groove and used for driving the driving wheel to ascend and descend so as to switch a moving mode and a fixed mode; according to the experimental research device for converter steelmaking, the driving wheels can be stored in a lifting mode, the stability is enhanced through reasonable splicing of the rubber pads, the universal wheels are convenient to move and steer, operation is convenient and fast, the rubber pads are detachable, and the problems of an existing device are solved.