7 results about "Homogeneity index" patented technology

The application provides a kind of high vacuum oven system with dynamic temperature regulation of cellular, it relates to kitchen utensils and control system technical field, the application is divided into center hot area, edge hot area and key material contact area by high vacuum oven cavity, real-time acquisition each area temperature, infrared radiation intensity and local pressure data;Temperature variation, pressure disturbance and radiation deviation are analyzed using multi-physical field coupling model, the calculation of temperature control uniformity index, thermal vacuum coupling index and radiation compensation index, and according to the preset threshold value to generate closed-loop regulation strategy, realize the dynamic control of regional heating power, vacuum pump power and adjustable emissivity.The system can effectively improve the cavity temperature control balance, thermal vacuum stability and radiation uniformity, ensure the precision and thermal uniformity of the baking process, suitable for high-precision baking and high-temperature drying process in the field of kitchen utensils.

The application discloses a power system distributed photovoltaic access under the power distribution network homogeneity planning method, including the homogeneity analysis model based on the source load prediction result and the power distribution network planning model based on the homogeneity, the homogeneity analysis model based on the source load prediction result is based on the existing source load prediction result to the existing network calculation structure homogeneity index and the current-carrying homogeneity index, and the output thereof, the power distribution network planning model based on the homogeneity is to the structure homogeneity index and the current-carrying homogeneity index of the to-be-planned model as input, under the given substation configuration and layout, the total operation economic cost is lowest as the target to the distribution network planning, the planning result is output, the purpose of comprehensively considering the operation safety and the economy of the distribution network is achieved, so as to solve the problem that the fluctuation and the uncertainty of the existing planning model are not considered multiple source loads and the influence on the operation of the distribution network.

The application discloses a multi-target coupling geographical stratification method and system based on spatial continuity constraint, which firstly carries out quality screening on geographical index and explanatory factor data; subsequently, an initial population is generated by adopting an NSGA-II algorithm, and each individual represents a stratification scheme defined by a hyperplane parameter; for each scheme, a geographical probe q statistic (measuring homogeneity in the layer), an adjacent homogeneity index and a blockiness index are synchronously calculated, and are collectively used as a target function of multi-target optimization; population evolution is carried out through non-dominated sorting, congestion calculation, simulated binary crossover and polynomial mutation, and a simulated annealing mechanism is introduced to enhance the global search capability; finally, spatial smoothing is carried out on the optimization result through an adaptive window model, and geographical stratification results meeting statistical significance and maintaining spatial continuity are output, so that the spatial fragmentation and fragmentation problems in the traditional method are effectively solved.

This invention discloses an elastic deformation modeling system for organ displacement during CyberKnife treatment, relating to the field of radiotherapy technology. It includes a data acquisition module for collecting static anatomical data, dynamic displacement data, and stiffness distribution data of the target organ; a dynamic registration module for constructing a heterogeneous elastic deformation field of the target organ through deformation modeling and a registration engine; a tracking and prediction module for acquiring real-time displacement of the target organ, predicting deformation trends, and obtaining predicted deformation data; a treatment planning integration module for acquiring 4D dose distribution data, calculating conformity and homogeneity indices, and evaluating and optimizing the dose; and a feedback control module for outputting motion compensation commands to the CyberKnife robotic arm, performing beam correction when the displacement exceeds a preset threshold, and adjusting the robotic arm's posture. This invention solves the problem of radiation deviation from the target area during CyberKnife treatment, improving the safety and therapeutic effect of radiotherapy.

This invention relates to the field of magnetron sputtering coating monitoring and control technology, and more specifically, to an intelligent monitoring method for the uniformity of magnetron sputtering coatings on solar collector tubes. The method includes: constructing a transmission-type acousto-optic caustic monitoring environment; acquiring caustic images and inverting them to obtain transient acoustic pressure distribution; performing singularity analysis on the pressure distribution using the box-counting method to calculate the microscopic inhomogeneity index of the coating layer; generating airflow pulse commands by combining the real-time acoustic resonance frequency of the inter-tube cavity; and driving a standing wave gas knife to inject pulsed gas into the inter-tube gap, using the wave interference principle to block the parasitic hollow cathode effect. This invention, through acousto-optic inversion and fractal topology filtering, achieves precise quantification and online closed-loop suppression of invisible micro-arc discharge lattice damage, significantly improving coating uniformity.

The application relates to the technical field of radiation monitoring, and discloses a real-time radiation monitoring system for the beam current uniformity of an accelerator solid target, which comprises a polarization characteristic sequence acquisition module, an environment compensation calibration module, a polarization angle distribution analysis module, a uniformity analysis module, an environment sensitivity analysis module and a comprehensive monitoring report generation module. First, the polarization characteristic sequence corresponding to the beam current received by the solid target is acquired; the polarization characteristic sequence is compensated and calibrated based on the temperature and the magnetic field intensity of the accelerator vacuum chamber, so that the calibrated polarization characteristic sequence is obtained; the calibrated polarization characteristic sequence is decomposed, so that the polarization angle distribution parameters are obtained; the distribution uniformity is calculated, so that the uniformity index is obtained; the environment correlation analysis is carried out in combination with the uniformity index, so that the environment sensitivity index is obtained; and finally, the comprehensive monitoring report is generated. The application can improve the precision of real-time radiation monitoring of the beam current uniformity of the accelerator solid target.

The invention belongs to the technical field of image processing, and particularly relates to a honey water bath decrystallization filtering effect detection method based on image processing, and the method comprises the steps: obtaining a honey liquid level image, extracting a plurality of micro target points, and determining the maximum radial boundary and angle sampling total number of each micro target point to construct a polar coordinate light intensity matrix; calculating a global light intensity integral and a light intensity difference value of adjacent angular sampling points based on the polar coordinate light intensity matrix to obtain an angular light intensity coherence index; obtaining a radial attenuation contrast according to the calculated light intensity of the core condensation area and the light intensity of the edge total reflection area; calculating a solid state coefficient according to the angular light intensity coherence index and the radial attenuation contrast; based on the relation between the solid state coefficient and the set blocking limit, the possible crystal residue number is obtained, and whether the detection reaches the standard or not is judged. According to the invention, fluid microbubbles and real tiny crystals are effectively distinguished, and the reliability of automatic quality control detection of honey is obviously improved.