15 results about "System study" patented technology

The application discloses a kind of evaluation methods, systems, equipment and medium for TI-ReID system, they are corresponding scheme, in scheme, through gradual multimodal fusion mechanism and residual-based perturbation information generation mode, TI-ReID system can be well evaluated in target and no target attack The security performance;Moreover, based on the perturbation information generated by soft restraint function, the gradient reverse propagation beyond the constraint threshold is allowed, so as to optimize the attack effect, and further more effectively evaluate the security performance of TI-ReID system.The present application achieves consistent excellent performance on different data sets and models, can well evaluate the security performance, is also the first system to study TI-ReID security method, provides a new security evaluation scheme for the field.

This invention discloses a method for constructing the potential function of a Ni-Co-Cr ternary alloy and modeling initial irradiation damage. Specifically, this invention provides a method for constructing the potential function of a Ni-Co-Cr ternary alloy, as well as an integrated method and system for potential function construction and initial irradiation damage modeling. The hybrid potential function constructed by this invention can effectively solve the problems of inaccurate short-range repulsion description and poor energy conservation due to the non-smooth connection with the medium-range potential energy in existing Ni-Co-Cr medium-entropy alloy potential functions when simulating primary collision events under irradiation. In addition, the integrated method and system developed by this invention can achieve integrated high-precision modeling, significantly improving the physical realism and numerical stability of the simulation. All parameters can be flexibly adjusted, facilitating the systematic study of the structure-property relationship between composition, energy, and irradiation damage effects.

This invention discloses an experimental apparatus and method for a similar model of a rock wall expansion. The apparatus includes a transparent experimental chamber, a layered gelatin system, a terrain simulation system, a dynamic injection system, a multimodal monitoring system, and a data acquisition and processing system. By independently adjusting the stiffness and density ratios of the upper and lower gelatin layers, combined with a detachable double-slope terrain mold, a systematic study of the coupled effects of multiple factors such as terrain, stiffness layering, density layering, and injection rate is achieved. The three-dimensional morphological evolution of the rock wall is simultaneously monitored using a multi-view high-speed camera, and the full-field displacement field, strain field, and principal stress direction during the rock wall expansion process are inverted in real time using digital image correlation technology. This reveals the control mechanism of stress gradient reversal caused by terrain on the lateral expansion and cessation of the rock wall. Furthermore, dimensionless analysis and boundary correction improve the similarity between the model and the natural prototype, providing a reliable experimental platform for volcanic eruption prediction and magma transport law research.

The application relates to a concrete deterioration simulation method and system under the coupling of sustained load and chloride ions, and solves the problems that the overall mechanical performance deterioration of concrete structures under the coupling of load and chloride ions cannot be systematically studied, and the deterioration of concrete structures in actual service environments cannot be comprehensively reflected. The method comprises the following steps: a sustained load is applied to a test block, a solution is configured according to a stress type to determine a chloride ion diffusion direction, an electric field is applied to accelerate migration and maintain test stability, the penetration depth is measured after the experiment, and the diffusion coefficient is calculated; in the process, multidimensional data such as cracks and acoustic emission are collected, dimensionality reduction is performed through PCA (principal component analysis), and redundancy is removed, then a deep learning model is established, two-stage optimization and physical constraint inversion are combined to invert damage factors, and finally, gradientized parameters conforming to actual deterioration are formed by fusing damage and chloride ion parameters. The application has the following effects: the concrete deterioration process can be accurately simulated, the durability evaluation and service life prediction can be provided, and the engineering safety and economy can be improved.

Systems and methods for evaluating reproducibility and heterogeneity for in vitro models and studies based on in vitro models include a computer that may obtain experiment results data for a plurality of microphysiology system models of a plurality of microphysiology system studies. The results data may include a plurality of measurement data values at a plurality of interval points in a microphysiology system study. The computer may generate variability values based upon each respective measurement data value for the microphysiology system models at one or more interval points of the microphysiology system study. The computer may determine whether one or more variability values fail to satisfy corresponding reproducibility thresholds and generate a reproducibility status for the microphysiology system models or microphysiology system studies, indicating whether the microphysiology system models or microphysiology system studies are likely reproducible. The computer may then determine whether the variability values of certain reproducible microphysiology system models satisfy a heterogeneity threshold.

The purpose of the present invention is to easily confirm the appearance of a system viewed from an on-site observer in a stage of discussing a layout relating to a system that performs a predetermined work. The system research support device includes a system information input unit, a layout display unit, an observer information input unit, a model generation unit, a model arrangement input unit, and a model viewpoint display unit. The layout display unit displays the layout of the system on the basis of the information input to the system information input unit. The model generation unit generates an observer model on the basis of the information input to the observer information input unit. The model arrangement input unit is configured so as to be able to arrange the generated observer model with respect to the layout of the system. The model viewpoint display unit displays a system that is viewed at the viewpoint of the arranged observer model.

The invention provides a molecular binding path reconstruction method and system based on multi-scale sampling. The molecular binding path reconstruction method based on multi-scale sampling comprises the following steps: performing large-range path search by adopting a coarse graining model of a simplified force field, and identifying a key path section through clustering analysis and an energy evaluation algorithm; converting the key path section into a full-atomic model, and performing high-precision sampling by adopting a precise force field to obtain a track file of atomic-scale interaction time sequence data; and performing multi-scale data integration based on the critical path segment and the trajectory file of the atomic-scale interaction time series data to reconstruct a molecular binding path. According to the method, the precise path information of the atomic level can be obtained while the calculation efficiency is ensured, so that the efficient and precise reconstruction of the atom combination path is realized; the molecular binding path reconstruction method based on multi-scale sampling is particularly suitable for complex molecular system research which needs to consider both large-range conformation search and high-precision sampling.

The invention discloses an adjustable multi-factor environment field simulation test device for water and pesticide atomization behavior research, and belongs to the technical field of plant protection equipment. The air supply scheme that the single centrifugal fan is combined with the branch controllable air distribution box and the uniform array air supply pipe assembly is adopted. According to the invention, under the conditions of controllable main flow and incoming flow wind fields and temperature and humidity environments, the particle size distribution change of the same fog drop group under the combination conditions of different movement distances, different wind speeds, temperatures and humidity parameters is compared and analyzed, so that the evaporation rate evolution characteristics of fog drops in the movement process are quantitatively represented; and the coupling relationship between the fog drop evaporation behavior and the motion trail thereof is further disclosed. Meanwhile, in combination with gradient wind field and lateral disturbance wind field conditions constructed by the device, systematic research on drifting, diffusion and evolution processes of the fog drops in a complex composite wind field can be expanded, so that the motion-evaporation evolution law of the fog drops under the condition close to a real field environment is comprehensively reflected.

This invention discloses a multi-scale phase space correlation dimension analysis method for jet reactors under negative pressure conditions. By introducing phase space reconstruction and attractor analysis methods (i.e., the correlation dimension method), the nonlinear dynamic characteristics of the internal flow field of the jet impacting the reactor are systematically studied. Phase space reconstruction technology reconstructs time-series data into trajectories in a high-dimensional phase space using a delayed embedding method, thereby revealing the system's intrinsic dynamic behavior. Attractors, as geometric structures in phase space, reflect the long-term dynamic characteristics of the system; their shape and distribution can provide important clues for understanding the complexity of the flow field. Through phase space reconstruction and attractor analysis, chaotic behavior, fractal characteristics, and the geometric structure of attractors in the flow field can be identified, thus providing theoretical support for optimizing reactor design and operating conditions.

This invention discloses a method for calculating soil moisture content at different depths based on data fusion. The method includes: dividing the study area into grids; constructing a soil profile moisture continuity equation using polynomials; and employing a neural network model, taking meteorological, soil, vegetation, and topographic data of the gridded area as input, and outputting the parameter sets corresponding to each term of the polynomial in the soil profile moisture continuity equation. This yields the soil profile moisture continuity equation for each gridded area, enabling the calculation of soil moisture content at different depths at any location. Compared to traditional soil moisture stratification systems, this invention offers higher accuracy and is suitable for the needs of different systems and studies.

A kind of multi-system research method for watershed ecosystem service and water and soil resources, it relates to the technical field of watershed ecosystem service, including method one, watershed scale ecosystem service evaluation based on discrete wavelet transform model;Method two, watershed water and soil resource matching calculation combined with information entropy theory;Method three, establish the multi-system coupling coordination model of watershed ecosystem service and water and soil resources.The present application realizes the quantitative expression of the correlation and response relationship of the multi-system of watershed ecosystem service and water and soil resources and the accurate evaluation of watershed scale ecosystem service, and provides a more easy-to-understand and simple operation mode for watershed decision makers.

The invention discloses an evaluation method, system, equipment and medium for a TI-ReID system, which are corresponding schemes, and in the scheme, the safety performance of the TI-ReID system in targeted and non-targeted attacks can be well evaluated through a progressive multi-mode fusion mechanism and a disturbance information generation mode based on residual errors; moreover, disturbance information is generated based on a soft clamping function, and gradient back propagation exceeding a constraint threshold is allowed, so that the attack effect is optimized, and the safety performance of the TI-ReID system is evaluated more effectively. According to the method, consistent excellent performance is obtained on different data sets and models, the safety performance can be well evaluated, the method is the first method for systematically researching the TI-ReID safety, and a new safety evaluation scheme is provided for the field.

The invention discloses a system and a method for simulating the influence of a landslide blockage form on a river channel, aiming at overcoming the defect that the influence of different landslide blockage forms cannot be systematically researched under the condition of reflecting complex natural conditions in the prior art. The system comprises a simulated riverway, an upstream water collecting tank with a water supply system is arranged on the upstream of the simulated riverway, a landslide simulation operation platform and an information collection system are arranged in the midstream, and a downstream water collecting tank with a water circulation system is arranged on the downstream, so that a water flow environment close to nature can be created. According to the method, by filling different landslide materials, stabilizing water flow and then opening a partition door, and recording data in combination with an information collection system, multiple landslide forms can be simulated repeatedly, blockage and water flow changes can be tracked synchronously, systematic research on influences of different forms is achieved, and support is provided for disaster early warning and the like.

The invention provides a multi-sample ice adhesive force test and parallel contrast experiment device and method. A multi-vessel water injection icing mechanism, an XYZ three-dimensional displacement sliding table capable of accurately positioning and an automatic control system are integrated; according to the device, bottomless freezing vessels which are designed side by side are adopted, ice columns with consistent specifications can be synchronously formed on the surfaces of the samples, and an electric displacement table is controlled by a program to drive a thrust probe to sequentially complete uniform-speed pushing, abutting and stripping on the ice columns; meanwhile, a mechanical sensor is used for collecting stripping force data in real time and analyzing interface separation conditions in combination with image records; the innovative design effectively solves the problems of low testing efficiency and inconsistent experimental conditions of a traditional single sample, remarkably improves the testing efficiency and the data comparability, and provides a reliable and repeatable experimental means for systematically researching the relationship between the surface characteristics and the ice adhesive force.

The invention discloses a drainage basin runoff production characteristic accurate identification method and device. The method comprises the following steps: constructing a basin hydrological physical model, performing numerical simulation on a soil moisture movement system, and constructing a soil moisture data set; training a deep learning model for predicting the movement speed of soil moisture; calculating feature importance scores at all grid nodes by using a deep learning interpreter; performing clustering analysis on the feature importance score time series data of each grid node by using a clustering method, and outputting a clustering label of each node and a center sequence of clustering; determining a saturation expansion zone and a runoff production area of the drainage basin according to the spatial distribution of the clustering labels; and determining a basin runoff surge moment according to the mutation of the clustering center sequence. According to the method, a comprehensive and fine system research path is provided for construction of the watershed hydrological connectivity which is difficult to observe and measure, and the establishment area and the establishment time of the hydrological connectivity in the watershed in the session rainfall can be determined through the method.