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Method for evaluating autophagy level of dunaliella salina based on rapamycin induction and monodansylcadaverine fluorescence detection
The application discloses a method for evaluating autophagy level of Dunaliella salina based on rapamycin induction and monodansylcadaverine fluorescence detection. The method comprises the following steps: culturing Dunaliella salina to logarithmic growth phase, adding a sample, and continuing to culture for 12-24 hours; adding monodansylcadaverine staining; detecting by using one or more of the following methods: a) measuring fluorescence intensity by fluorescence spectrophotometer, b) observing the morphology, quantity and subcellular distribution of autophagosomes by using a laser scanning confocal microscope, or c) measuring the average fluorescence intensity or the percentage of positive cells in the FL1 channel by using a flow cytometer; and determining the autophagy induction activity level of the sample according to the difference between the sample group and the control group. The application first systematically establishes a quantitative autophagy detection system suitable for Dunaliella salina, and has the advantages of simple operation, rapid detection, objective results, high-throughput application and the like, and provides a standardized technical tool for microalgae autophagy mechanism research and stress resistance breeding.
Owner:SOUTH CHINA UNIV OF TECH
Top heat dissipation type liquid cooling container and application control method thereof
PendingCN121968526Acompact structureReduce space occupancyCooling/ventilation/heating modificationsCooling towerContainer tops
According to the top heat dissipation type liquid cooling container and the application control method thereof, the cooling tower container top arrangement design is adopted, a CDU module is omitted, the overall cost is reduced, more Tanks can be deployed in the spare space after the CDU module is omitted, and the computing power of a single liquid cooling container is greatly improved. The cooling tower is compact in structural form, low in space occupancy rate, higher in integration degree and good in universality and reliability, and the ground space of the cooling tower is saved. After a certain cooling tower fails, normal operation of other devices is not affected, and the disaster recovery capacity is improved. The cooling tower and the Tank carry out heat exchange one by one, the heat dissipation efficiency is higher, the number of water cooling pipelines is smaller, and the integration degree is higher.
Owner:HANGZHOU JINQUN TECHNOLOGY CO LTD
A method for compensating for the inclination of a blast furnace distribution chute and the material line
PendingCN122588297AAchieve precise compensationRadial position stability
The application discloses a kind of high furnace cloth chute inclination and material line compensation method, comprising: selecting a cloth inclination as reference inclination, and obtaining its corresponding reference material line height;Actual material line height of current high furnace is obtained, and the height difference with reference line is calculated;Material flow trajectory is divided into N continuous compensation intervals according to height difference;Pre-calculate the endpoint compensation value of each compensation interval, and the endpoint compensation value is the angle compensation amount that reference inclination needs to adjust at current material line height to keep the radial position of cloth drop point unchanged relative to reference material line;Determine the compensation interval where actual material line height difference is located, and the actual compensation angle corresponding to actual material line height difference is calculated using linear interpolation according to the upper and lower endpoint compensation value of the interval;Actual compensation angle is applied to reference inclination, and the cloth inclination that should be executed at current actual material line height is obtained.The application realizes the accurate compensation of chute inclination angle to material line height difference.
Owner:武汉钢铁有限公司
Wheel center hole powder blowing device
ActiveCN224599569UGuaranteed demandEasy for production management
The utility model discloses a kind of wheel center hole powder blowing devices, including powder blowing pipe, lifting motor, compressed air pipe, powder suction pipe and powder suction fan, the side wall of powder blowing pipe is equipped with powder blowing hole;Powder blowing pipe is used to be arranged in the center hole of wheel, and powder blowing is carried out to the center hole of wheel after powder spraying by powder blowing hole;Lifting motor is connected with powder blowing pipe;Lifting motor is used to drive powder blowing pipe to carry out lifting motion;Compressed air pipe is connected with powder blowing pipe;Compressed air pipe is used to provide compressed air to powder blowing pipe to carry out powder blowing;Powder suction pipe is sleeved outside powder blowing pipe;Powder suction pipe is used to suck the powder blowing powder of powder blowing pipe;Powder suction fan is arranged at the outlet of powder suction pipe;Powder suction fan is used to provide suction power source to powder suction pipe;It has good universality, is conducive to guaranteeing that cover stop mouth has coating, center hole has no coating actual demand, conducive to production management.
Owner:TIANJIN LIZHONG GRP CO LTD
Tomographic gamma scanning voxel efficiency scaling method based on spatial properties of a radioactive source
ActiveCN115932936Breduce workloadImprove scaling efficiencyX-ray spectral distribution measurementNuclear energy generationVoxelNuclear engineering
The application discloses a tomography gamma scanning voxel efficiency calibration method based on radioactive source spatial properties, which can reduce workload, improve work efficiency and has good universality. The tomography gamma scanning voxel efficiency calibration method based on radioactive source spatial properties comprises the following steps: S1, using Monte Carlo method related software to establish a TGS system 1:1 simulation model; S2, determining the radioactive source placement position for spatial efficiency measurement; S3, spatial efficiency calculation; S4, spatial efficiency correction coefficient calculation; S5, detection efficiency factor calculation; and S6, detection efficiency calculation. The tomography gamma scanning voxel efficiency calibration method based on radioactive source spatial properties can share a set of spatial efficiencies epsilon for all energy gamma rays, can reduce workload, improve calibration efficiency, guarantee data reliability, has good universality and migration.
Owner:SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
A method of fiber coupling clamp positioning calibration
PendingCN122652746AEliminate systematic biasEliminate distortion effects
The present application relates to the technical field of optical fiber coupling clamping positioning calibration, and discloses a kind of optical fiber coupling clamping positioning calibration method, optical fiber or lens clamping positioning is calculated with standard calibration piece theoretical coupling target position;With grating calibration plate establishes pixel mapping, calculates spatial displacement deviation;Generation multi-degree-of-freedom adjustment instruction controls five degrees of freedom and monitors coupling efficiency;Adopt random parallel gradient descent algorithm closed loop iteration until coupling efficiency reaches threshold value.The whole process closed loop control from initial clamping to final alignment of the optical fiber coupling clamping positioning calibration method improves coupling efficiency and repeat accuracy, calculates theoretical coupling target position by standard piece turnover measurement, thereby eliminating the system deviation of clamp and optical path, and accurate mapping of pixel and physical size is established using grating calibration plate, image distortion influence is eliminated, visual deviation is converted into spatial displacement deviation after driving adjustment, blind search is avoided.
Owner:WUHAN GIGA OPRISE TECH CO LTD
Multi-dimensional dynamic evaluation system for enterprise security risk
PendingCN121787901AStrong versatilityimprove integrityBiological modelsComplex mathematical operationsBusiness enterpriseCorporate security
The invention discloses a multi-dimensional dynamic evaluation system for enterprise security risks, and the system comprises a data preprocessing module which generates a plurality of pieces of preprocessed enterprise operation time sequence data; the multi-channel matrix construction module is used for constructing a two-dimensional matrix containing original data, first-order derivative data and second-order derivative data and generating a multi-channel matrix; the channel attention module is used for carrying out dimensionality reduction and dimensionality increase on the multi-channel matrix, generating a channel weight and generating a two-dimensional feature matrix; the information aggregation module is used for generating original data feature vectors; the prediction module is used for generating an original data expected vector; and the risk assessment module is used for generating the security risk of the corresponding original data. Therefore, the method can adapt to the enterprise operation time sequence data of various specifications, can systematically integrate the original information of the time sequence data, and can accurately reflect the contribution degree of each operation dimension to the overall risk of the enterprise.
Owner:陶冠男
Conveying device and conveying system
PendingCN121948102AStrong versatilityeasy to set upStacking articlesDe-stacking articlesLogistics managementSoftware engineering
The invention discloses a conveying device and a conveying system.The conveying device comprises a solid tray conveying assembly, an empty tray conveying assembly, a first conveying assembly, a second conveying assembly and a first push-pull assembly, and the empty tray conveying assembly is arranged on the lower side of the solid tray conveying assembly; the first conveying assembly has a first state in butt joint with the solid tray conveying assembly and a second state in butt joint with the empty tray conveying assembly, the first push-pull assembly is arranged on the lower side of the empty tray conveying assembly and can reciprocate in the conveying direction of the empty tray conveying assembly, and the conveying device is configured to respond to the first conveying assembly to be switched to the second state. In the second state, the first conveying assembly and the empty tray conveying assembly are arranged in a staggered mode in the conveying direction of the empty tray conveying assembly, and the first push-pull assembly can drive the empty trays on the first conveying assembly to the empty tray conveying assembly. The conveying device can improve the overall logistics efficiency and the automation level, and manual intervention can be reduced.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD +1
Multi-target RNA targeting knockdown system and application
The present application relates to the technical field of genetic engineering, and particularly relates to a multi-target RNA targeting knockdown system and application. The present application constructs a universal multi-target RNA targeting knockdown system based on a CRISPR-CasRx (Cas13d) system, in which two crRNAs are used as the minimum unit, multiple crRNAs are integrated into a single plasmid through a GoldenGate cloning method, and the single plasmid can express multiple crRNAs, so as to realize multi-target coverage of a target sequence. In addition, the crRNA can target the target gene itself or a fluorescent marker sequence such as a GFP sequence. When targeting the fluorescent marker sequence, different crRNAs do not need to be redesigned and screened for different target genes, but the gene can be labeled with GFP, which has good universality, avoids the cumbersome process of designing and screening crRNAs, and has high knockdown efficiency.
Owner:UNIV OF SCI & TECH OF CHINA
Zigbee unvarnished transmission module
ActiveCN224154217Uquick installationquick releaseNetwork topologiesTransmissionComputer hardwareBolt connection
Owner:SHENZHEN XINYI INFORMATION TECH CO LTD
Universal baculovirus transfer vector and application thereof
PendingCN122012621Aquick buildImprove stabilitySsRNA viruses positive-senseViral antigen ingredientsEnterovirusMutated protein
The invention provides a universal baculovirus transfer vector and application thereof. The universal baculovirus transfer vector comprises the following elements: (a) a 3CD protease coding gene containing Q184L mutation; (b) a baculovirus homologous repeat region enhancer hr1; (c) a baculovirus late expression factor lev5 gene and an expression regulatory element thereof; (d) a polh-pSel promoter used for driving the expression of the P1 protein; (e) a target serotype enterovirus P1 protein; wherein the elements (a)-(d) constitute a general core skeleton, and the element (e) allows insertion or replacement of a specific P1 protein gene. The 3CD stability is remarkably enhanced, the VLP yield and the assembling efficiency are greatly improved, the method has outstanding universality, and an efficient technical platform is provided for development of broad-spectrum enterovirus vaccines.
Owner:WUHAN INST OF BIOLOGICAL PROD CO LTD
A medical image segmentation method and system for true lumen, false lumen and false lumen thrombus of aortic dissection
The application discloses a medical image segmentation method and system for a true lumen, a false lumen and a false lumen thrombus of a aortic dissection. Firstly, three-dimensional medical image data of the aortic dissection is acquired, pre-processing operation is performed on the image data to obtain a two-dimensional slice image, and the two-dimensional slice image is divided into local regions. Secondly, a hierarchical feature extraction module is used to extract features of the divided image. Then, a dynamic region adaptive module is used to adjust the extracted feature map, a region response map is generated through a guide path, and different spatial regions in the feature map are given explicit adjustment weights. Finally, the multi-scale feature map after the region adjustment is unified and aggregated, and a segmentation mask is output through a prediction module to generate a segmentation result with clear structure boundary and complete semantics. The application improves the recognition accuracy of complex anatomical structures, enhances the detection capability and boundary perception performance of small volume lesions, and has good universality and stability.
Owner:QUZHOU HEALTH DEVELOPMENT CENTER
Application of pyrimidine-based additive in perovskite solar cell
PendingCN121815935Agood repeatabilitygrow fastPhotovoltaic energy generationElectrical batteryFormamidinium
The invention relates to an application of a pyrimidine-based additive in a perovskite solar cell. A pyrimidine derivative with moderate Lewis alkalinity is selected as the additive and forms a moderate and stable coordination intermediate with a lead iodide precursor, so that nucleation of alpha-phase formamidine lead iodide can be accelerated and defect generation can be inhibited; the method is suitable for planar formal and trans-structure devices, the photoelectric conversion efficiency of 25% or above is achieved in the formal structure and the trans-structure, and excellent stability is kept under the long-time operation and storage conditions. The invention provides an additive design principle based on pyrimidine molecules, and provides a theoretical basis and a technical path for development of high-performance and long-life perovskite photovoltaic devices.
Owner:NANJING TECH UNIV
Ultrasonic-based special environment liquid measuring device
The utility model discloses a kind of special environment liquid measuring device based on ultrasonic, applied to liquid measurement technical field.It includes shell and the signal processing system being set in the shell inside, signal processing system includes ultrasonic wave transmitting circuit, ultrasonic wave receiving circuit, piezoelectric ceramic transducer, digital signal processor, power module, temperature sensor and pressure sensor, ultrasonic wave transmitting circuit, ultrasonic wave receiving circuit, temperature sensor, pressure sensor are connected with digital signal processor, piezoelectric ceramic transducer is connected with ultrasonic wave transmitting circuit, ultrasonic wave receiving circuit, power module is the power supply for liquid measuring device.The utility model carries out original material and physical structure design to multiple special environment, can keep stable performance under harsh environment, realize accurate measurement, and the scope of application is wide;Without being directly contacted with the liquid to be measured, with good versatility and longer service life.
Owner:ANHUI SANLIAN UNIV
A method for matching selection of a hull, a main engine and a propeller
The application discloses a method for matching selection of a ship body, a main engine and a propeller, and comprises the following steps: step 1, setting ship parameters, design requirements and propeller parameters; step 2, constructing a propeller hydrodynamic performance prediction model based on a support vector machine, wherein the input of the model is the propeller parameters, and the output of the model is the open water power of the propeller; step 3, constructing a four-stage matching method, and optimizing a disc area ratio in each stage; step 4, performing cavity checking and strength checking on the matching results output in step 3, and taking the matching results meeting the checking as effective propellers; and step 5, sorting the effective propellers by a double optimization target method, and taking the optimal effective propeller as the final matching result. The application can quickly provide the matching selection result of the ship body, the main engine and the propeller, can comprehensively design the main engine and the propeller parameters, and ensures that the open water efficiency of the propeller reaches the optimum, and reduces the labor cost in the design process.
Owner:JIANGSU UNIV OF SCI & TECH +1
Condensed graph representation acquisition method for quantum circuits and related devices
PendingCN122133839APreserve original connectivityEnsure exemplaryQuantum computersQuantum circuitHemt circuits
This invention discloses a method and related equipment for obtaining a condensed graph representation of a quantum circuit, relating to the field of quantum computing technology. The method includes: calculating the characteristic orientation of each quantum gate in the quantum circuit on each qubit it interacts with; creating a directed superedge for each qubit in the quantum bit set, and maintaining a nearest supernode pointer for each qubit in the quantum bit set, with all nearest supernode pointers initialized to null; iterating through each quantum gate in the quantum gate set according to the gate sequence order of the quantum circuit, and constructing the condensed graph representation of the quantum circuit by combining the supernode set and the superedge set. The construction process of this invention has low complexity and is applicable to various quantum circuits composed of multiple single-objective gates, exhibiting good versatility.
Owner:BEIJING ZHONGKE ARCLIGHT QUANTUM SOFTWARE TECH CO LTD
A method and system for recognizing gestures of myogenic signals based on crown-hedgehog optimization of VMD parameters
The application belongs to the field of biomedical signal processing and human-computer interaction, and discloses a muscle-derived signal gesture recognition method and system based on crown porcupine optimization VMD parameters. The method collects electromyography or muscle magnetic signals during gesture action, and constructs a sample set through sliding window segmentation, data balancing processing and standardization. The crown porcupine optimization algorithm (CPO) is used to adaptively optimize the mode number and penalty factor of variational mode decomposition (VMD), and the gesture classification accuracy is used as the fitness function. Global search and local mining are realized through the four-layer defense of vision, sound, odor and physics of CPO. The intrinsic mode function (IMF) under the optimal parameters is extracted and spliced into a multi-dimensional feature matrix, which is input into a classification model to realize gesture recognition. The application directly optimizes the recognition performance, enhances the feature discriminability, and improves the recognition accuracy and robustness of muscle-derived signals in complex scenes.
Owner:BEIHANG UNIV
A high-precision static pressure thrust sliding bearing simulation and optimization design method
ActiveCN121562077BHigh precisionImprove simulation accuracyGeometric CADDesign optimisation/simulationThermodynamicsSlider bearing
This invention relates to the field of sliding bearing simulation and optimization technology, and more specifically to a high-precision simulation and optimization design method for hydrostatic thrust sliding bearings. It establishes an efficient decoupling model of the fluid-solid-thermal three-physics field of the hydrostatic thrust sliding bearing, decomposing the overall thermodynamic field into two subfields, which are coupled with the fluid force field and the solid force field, respectively. Then, it constructs a gap oil film flow / thermal field model and a friction pair deformation solid / thermal field model, achieving equivalent coupling through data transfer. The oil film control equations are iteratively solved to obtain oil film pressure, temperature, and flow velocity; the friction pair equations, including elastic constitutive and thermal strain equations, are solved to obtain their elastic and thermal deformations, with bidirectional data transfer achieving coupled iteration. Based on the above method, simulations are performed, establishing sub-models of oil film flow and friction pair deformation, using local interpolation and dynamic meshing to process the interface; the oil cavity is optimized based on the simulation results, parametric analysis is used to establish the mapping between structural parameters and lubrication performance, the objective function and constraints are defined, and the optimal oil cavity structure is obtained through algorithms.
Owner:YANQIHU BASIC MFG TECH RES INST (BEIJING) CO LTD +2
A mobile pin press device
ActiveCN224310015UAchieve freedom of movementprecise positioningMetal working apparatusBall bearingSolenoid valve
The utility model relates to a kind of mobile press pin machine devices, including product placement unit, cylindrical pin positioning guide unit and mobile press pin machine unit;Wherein product placement unit includes the mobile trolley of placing camshaft product;Cylindrical pin positioning guide unit includes cylindrical pin positioning guide sleeve, locking screw and cylindrical positioning bolt;Mobile press pin machine unit includes product positioning seat, press pin head, gas-liquid pressure cylinder front seat, gas-liquid pressure cylinder, gas-liquid pressure cylinder rear seat, cylindrical guide rail, flange linear ball bearing, gas-liquid pressure cylinder bottom plate, round flange seat, lifting mechanism bottom plate frame, directional wheel, universal wheel, cylinder, bevel gear elevator, hand wheel, handle, pneumatic element bottom plate, gas source two joint parts, solenoid valve and controller.The utility model can improve the precision and efficiency of camshaft workpiece press-fit positioning pin, and the utility model can reduce workpiece collision risk and personnel safety hazard.
Owner:JINGZHOU GLOBAL AUTO PARTS MFG CO LTD
A pre-dispensing device with multi-laser positioning
This utility model relates to the field of semiconductor equipment assembly technology, and more particularly to a pre-assembly device for multi-laser positioning. It includes a pre-assembly platform, on which a laser level for monitoring the origin is fixedly mounted. An X-axis guide rail and a Y-axis guide rail are also fixedly mounted on the pre-assembly platform. Uniformly distributed X-axis sliders are slidably mounted on the X-axis guide rail, and uniformly distributed Y-axis sliders are slidably mounted on the Y-axis guide rail. This utility model allows for convenient and rapid positioning of the X and Y coordinates of multiple pipe fittings using the X and Y axis guide rails, which is much faster than aligning each one individually with a laser level. The X and Y axis guide rails contain scales, and the X and Y axis sliders contain coordinate pointers, which conveniently indicate the current coordinates of the sliders. By creating reticles on the base plates of positioning height scale one and positioning height scale two, the X and Y axis laser beams can be easily aligned with the reticles to determine the coordinates. This device offers good versatility for pre-assembling pipes for different semiconductor devices.
Owner:HEFEI JIUFU SEMICON TECH CO LTD
UwDAS optical cable and audio box combined device for equipment fault monitoring
ActiveCN224175944Ulow costRetain high sensitivity abilitySubsonic/sonic/ultrasonic wave measurementControl devices for conveyorsSound waveAudio frequency
The utility model discloses a uwDAS optical cable and audio box combined device for equipment fault monitoring. The device comprises a sensing optical cable, an audio box base, an audio box mandrel, an audio box cover and a sensing optical fiber, the sensing optical fiber is tightly wound on the audio box core shaft, and the audio box core shaft is fixed on the audio box base; the audio box base and the audio box cover are assembled to form an audio box; and the sensing optical cable is connected with the sensing optical fiber in the audio box to form an optical cable and audio box combined device. Through the uwDAS optical cable and audio box combined device, long-distance and high-sensitivity detection of equipment operation sound wave signals can be realized; the system has the characteristics of high sensitivity, stable structure, flexible deployment, continuous coverage, distributed detection, industrial adaptability and the like.
Owner:CHINA THREE GORGES UNIV
A sensitive prompt word generation method and system based on parameter sensitivity quantification
ActiveCN120911454BIncreased sensitivityhigh sensitivitySemantic analysisTest sampleTheoretical computer science
The application discloses a sensitive prompt word generation method and system based on parameter sensitivity quantification, relates to the technical field of artificial intelligence security, and aims to solve the problem of sensitive test sample generation difficulty in black box large language model integrity verification. The method comprises the following steps: obtaining an original large language model; constructing a comprehensive parameter sensitivity index, which combines micro sensitivity for representing small parameter modification and macro sensitivity for representing parameter quantification, pruning and other substantial modification, so as to comprehensively quantify the sensitivity of the prompt word; in a continuous embedding space, a gradient optimization algorithm is used to iteratively optimize the comprehensive index, and semantic rationality and other constraints are applied to ensure the natural fluency of the generated prompt word; finally, the optimized embedding vector is mapped back to a discrete word sequence to obtain the final sensitive prompt word. The application realizes low-cost and automatic test sample generation, and significantly improves the accuracy, efficiency and concealment of cloud model integrity verification.
Owner:GUANGDONG UNIV OF TECH
Novel material lifting and dumping device
ActiveCN224118302Uspeed up pouringReduce labor intensityBottle emptyingLoad-engaging elementsWork productivityNew materials
The utility model provides a novel material lifting and dumping device. The novel material lifting and dumping device comprises a base plate, a supporting frame, a material barrel, a material barrel frame and a lifting and tilting mechanism. The support frame is arranged on the chassis; the charging barrel is detachably arranged in the charging barrel frame; the lifting and tilting mechanism comprises a lifting frame, a lifting driving device and a blocking guide piece; the charging barrel frame is provided with a rotating arm structure; the charging barrel frame is rotatably connected with the lifting frame; the lifting frame is arranged in the supporting frame through a lifting driving device so that lifting of the lifting frame can be achieved, and the charging barrel frame can be driven to ascend and descend. And the blocking guide piece is provided with a blocking guide position, so that after the charging barrel frame ascends to a set height, the rotating arm structure is blocked by the blocking guide position of the blocking guide piece to ascend. The device can realize material dumping and blanking automatically or in an auxiliary manner, so that the labor intensity of workers is reduced, and the working efficiency is improved.
Owner:PAITNER (DONGGUAN) ROBOT TECHNOLOGY CO LTD
A method and apparatus for condensing and collecting zinc vapor
ActiveCN116083735BReduce condensation lossesImprove recycling efficiencyProcess efficiency improvementSlagSludge
The application discloses a zinc vapor condensation and collection method and device, wherein the device comprises a fan, a graphite pipe, a condensation pipe, a zinc collector, a zinc crystallizer and the like. The air inlet of the graphite pipe is connected with the air outlet of a dezincing reactor and the air outlet of the fan, the graphite pipe is wrapped with refractory insulating bricks outside, a thermocouple is arranged in the graphite pipe, the air outlet of the graphite pipe is connected with the condensation pipe, the condensation pipe is vertically installed, cooling water pipes are arranged in the inside and the outer wall of the condensation pipe, the zinc collector is connected with the condensation pipe below, a partition plate is arranged in the zinc collector, and the zinc collector is connected with the zinc crystallizer through a liquid outlet groove. The application solves the problems of the traditional splash type condenser, such as large volume, complex structure, narrow application range and high energy consumption, and has the advantages of small land occupation, simple structure, low energy consumption, high zinc vapor condensation and recovery efficiency, strong universality, important technical significance and market adaptability for dezincing of zinc ore, zinc slag and zinc-containing dust and sludge.
Owner:SHANGHAI UNIV
Prediction method for hydrogen content in steel in vacuum refining process
PendingCN121983155AIntuitively grasp the changing rules of hydrogen contentRealize real-time monitoringChemical processes analysis/designComputational materials scienceHydrogen concentrationHydrogen content
The invention discloses a method for predicting the hydrogen content in steel in a vacuum refining process. The method comprises the following steps: collecting initial working condition parameters of vacuum degassing; calculating the weight and the circulating flow of molten steel in a steel ladle-vacuum chamber double-phase region; solving real-time dehydrogenation rates and dehydrogenation cumulants of three dehydrogenation paths including the interior of the molten steel, the free surface of the molten steel and the surface of the argon bubble in the unit time step length; based on a mass conservation equation, establishing a transmission equation of the hydrogen concentration in the steel ladle-vacuum chamber two-phase region steel liquid circulation process, and iteratively solving the hydrogen concentration of the steel ladle and the vacuum chamber steel liquid in unit time by utilizing a fourth-order Runge-Kutta method; and outputting the hydrogen content of the molten steel in the steel ladle and the predicted value of the real-time hydrogen content change by iterating the time step length. The method is suitable for SSRF, RH and other vacuum refining devices, the absolute error between the prediction result and the detection value of the online hydrogen meter does not exceed 0.5 ppm, and accurate data support can be provided for process optimization.
Owner:SHANXI TZCO INTELLIGENT MINING EQUIPMENT TECHNOLOGY CO LTD +1
Cooling device of stamping die
ActiveCN224115005UReduce production and maintenance costsStrong versatilityShaping toolsWater flowMechanical engineering
The utility model discloses a cooling device of a stamping die, which comprises a die main body and a cooling assembly, the cooling assembly comprises a vortex tube, a first cooling gas ejector pipe and a second cooling gas ejector pipe, the die main body comprises a female die and a male die, the first cooling gas ejector pipe is positioned on the periphery of the female die, and the second cooling gas ejector pipe is positioned on the periphery of the male die. The second cooling gas ejector pipe is located on the periphery of the male die, the first cooling gas ejector pipe is communicated with the second cooling gas ejector pipe through a second gas conveying hose, and the vortex pipe is communicated with the second gas conveying hose through a first gas conveying hose. The cooling assembly achieves cooling based on the vortex tube, the vortex tube generates cold air flow, the stamping die is cooled through the cold air flow, a cooling water flow channel does not need to be formed in the stamping die, the production and maintenance cost of the die is low, the form of the cooling air spraying pipe is correspondingly designed according to the form of the female die and the form of the male die, and the production efficiency is improved. The cooling assembly is suitable for stamping dies of different models and specifications and has good universality.
Owner:WUXI MEIYI PRECISION MASCH TECH CO LTD
Variable-controllable immersive evacuation illumination reaction data acquisition and modeling experiment method
PendingCN121997767Aincrease diversityImprove effectivenessBiological modelsEnergy saving control techniquesOriginal dataData acquisition
The invention provides a variable-controllable immersive evacuation illumination response data acquisition and modeling experiment method, which comprises the following steps: constructing an immersive evacuation scene, and adjusting illumination variables to form different illumination guide schemes; synchronously collecting eye movement physiology, behavior track and regional attention data of the subject; repeating experiments according to a preset design, and accumulating multi-scene multi-sample data; original data is processed, key features are extracted, and a multi-dimensional reaction feature vector is constructed and mapped to a high-dimensional space; inputting the feature vectors into a trained machine learning model, and classifying and predicting the evacuation reaction mode; a simulation environment is constructed, the state, action and reward function of reinforcement learning are defined, a deep reinforcement learning training agent is adopted, an evacuation behavior is simulated, and the illumination design is iteratively optimized. According to the method, a complete technical closed loop of multi-dimensional real reaction data acquisition, intelligent analysis and simulation verification is realized under a controllable condition, and a scientific and quantitative basis is provided for optimization of an evacuation lighting system.
Owner:TIANJIN UNIV OF COMMERCE
Snapshot spectral imaging system and method based on spatial spectrum hybrid coding
PendingCN121933128Aefficient samplingHigh spectral resolutionImage enhancementSpectrum investigationImage resolutionSpectral filtering
The invention provides a snapshot type spectral imaging system and method based on spatial spectrum hybrid coding. The system comprises a spatial spectrum hybrid coding imaging module and a decoding reconstruction module. Wherein the spatial spectrum hybrid coding imaging module sequentially comprises a filtering module used for filtering wave bands outside a working wave band range; the spectrum hybrid modulation module is used for applying composite modulation to an incident light field through multiplexing to obtain a hybrid modulation light field; the spectral filtering array module is used for performing pixel-level spectral filtering on the hybrid modulation light field in a spatial dimension; and the gray level acquisition module is used for capturing the mixed light field coded by the spectrum filtering module to obtain a two-dimensional measurement value. And the decoding reconstruction module is used for reconstructing a spectral image from the two-dimensional measurement image. According to the invention, the spatial and spectral information is synchronously obtained in single exposure, the joint optimization of the spatial resolution and the spectral resolution is realized, and a solution is provided for the problem of balancing the spatial resolution and the spectral resolution of a snapshot spectral imaging system.
Owner:NANJING UNIV
A new type of lubricating grease filling device
The utility model relates to a novel lubricating grease filling device belongs to equipment lubricating tool technical field, the utility model discloses an oil injection subassembly, oil cylinder seat, push oil subassembly, handle mechanism and grease filling cylinder, the grease filling cylinder sets up in the oil cylinder seat, is equipped with the piston cover in the grease filling cylinder, and the left end of grease filling cylinder is connected with the oil injection subassembly, and push oil subassembly sets up in the right end of oil cylinder seat and grease filling cylinder, handle mechanism sets up between push oil subassembly and grease filling cylinder, the utility model can realize the efficient, clean filling and filling of lubricating grease, and the structure is exquisite light and handy, and the operation is simple and flexible.
Owner:YUNNAN CHIHONG RESOURCE COMPREHENSIVE UTILIZATION CO LTD
LIBS multi-component quantitative analysis method based on spectral mechanism constraint and feature decoupling
The application relates to the field of intelligent analysis, and discloses a LIBS multi-component quantitative analysis method based on spectrum mechanism constraint and feature decoupling. Target spectrum data is acquired and pretreated. Spectrum mechanism perception features are extracted according to the pretreated target spectrum data. Component-specific feature decoupling is performed according to the spectrum mechanism perception features. Adaptive error regulation is performed. Finally, multi-component quantitative analysis results are output. The output multi-component quantitative analysis results are based on concentration range constraint and multi-component consistency constraint. The application realizes spectrum feature decoupling, avoids the problem of insufficient attention to low-content components, and improves the accuracy and stability of analysis.
Owner:EAST CHINA JIAOTONG UNIVERSITY