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226 results about "Radiation effect" patented technology

Radiation effect is the physical and chemical property changes of materials induced by radiation.

Method for synchronously and progressively correcting heat effect and stripe noise based on RBF (Radial Basis Function) curved surface

The invention discloses a heat effect and stripe noise synchronous progressive correction method based on an RBF curved surface. The method comprises the following steps: acquiring a degraded image; performing gray processing on the degraded image to obtain a gray degraded image; performing guided filtering processing on the gray scale degraded image to obtain a filtered thermal radiation effect estimation image; constructing an RBF kernel matrix according to the thermal radiation effect estimation image and the RBF kernel function, and solving a weight coefficient in combination with a pixel gray vector of the thermal radiation effect estimation image; multiplying the solved weight coefficient by the RBF kernel matrix to generate an RBF thermal radiation effect curved surface; estimating stripe noise through a stripe operator based on the degraded image and the RBF thermal radiation effect curved surface; according to the RBF thermal radiation effect curved surface and the stripe noise, a potential clear image is restored through a synchronous progressive correction optimization algorithm. According to the invention, the thermal radiation effect and possibly accompanied stripe noise of the image can be simply and efficiently removed.
Owner:WUHAN INST OF TECH

Polar cloud mask quality inspection and correction method and equipment

The invention discloses a polar cloud mask quality inspection and correction method and device, and compared with the prior art, the method carries out the standardized grid projection of active and passive remote sensor data, and carries out the consistency evaluation of the data quality as the weight. Cloud mask quality inspection and correction between different active and passive remote sensing sensors are realized, the limitation that time-space matching needs to be performed one by one in traditional satellite remote sensing data fusion is broken, and a reliable cloud mask detection result is identified by using high precision of a laser radar and consistency of multiple passive satellites. And then the result is transmitted to radiation data for correction, so that the result is not influenced by different parameters among different satellite sensors, flexible adjustment can be performed according to output requirements of different data sources, spatial resolution and the like, and more comprehensive data support is provided for polar cloud mask product optimization. The method is helpful for improving cognition on scientific problems such as polar cloud radiation effect and polar climate change, and has important scientific research and application values.
Owner:NAT SATELLITE METEOROLOGICAL CENT

Radiation hardening band-gap reference current source circuit

The invention relates to a radiation hardening band-gap reference current source circuit, and belongs to the technical field of radiation resistance of integrated circuits. Over-degradation of the threshold in a high total dose environment is focused on a circuit design level, closed-loop adjustment of the threshold voltage is realized through total dose detection and a dynamic compensation mechanism, and reliability and stability of the circuit in the high dose radiation environment are remarkably improved. Through the embedded logic of the reinforced circuit, the anti-radiation performance of the reinforced circuit is ensured, and the reinforced circuit can work normally in a high-dose environment. Reliable triggering and system self-recovery in a full dose range can be realized through a bias closed-loop design provided by a reference circuit for a reinforced loop, and the application requirements of extreme environments such as spaceflight and nuclear energy are met. The method has the advantages of anti-radiation effect, good dynamic nature, strong transportability and the like.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Single event effect laser simulation system based on Bessel beam shaping

The invention belongs to the technical field of radiation effect and radiation hardening of semiconductor devices and integrated circuits, and particularly relates to a single event effect laser simulation system based on Bessel beam shaping. A Bessel beam shaping and focusing module based on an axon lens is introduced and composed of the axon lens and two lenses, namely a single lens and a focusing lens, a Gaussian beam of an incident beam is shaped into a quasi-Bessel beam, and the quasi-Bessel beam is utilized to irradiate a semiconductor device to be detected. The axial distribution of the light beam is kept unchanged in a range of hundreds of microns, and the focusing breaking through the diffraction limit is realized in the radial distribution, so that the effect closer to the heavy ion charge deposition track is generated. The technology can solve the problem that a multilayer structure device, a thick sensitive region device and a wide forbidden band device are difficult to test through traditional laser simulation, and has important practical value for promoting laser simulation of the single event effect.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Method and system for testing performance of enclosure structure coupled with sky cold and hot radiation effect

The invention relates to the technical field of building thermotechnical testing, solves the technical problem that in the prior art, due to the fact that an experimental environment lacks the sky background radiation cold effect, the accuracy of enclosure structure performance testing is low, and provides an enclosure structure performance testing method and system coupled with the sky cold and hot radiation effect. The method comprises the following steps: establishing an equivalent sky effective temperature control model according to a meteorological database; acquiring test environment parameters through a test environment parameter control module according to the equivalent sky effective temperature control model; acquiring real-time test data of the enclosure structure test piece under the control of the test environment parameters through a test data acquisition module according to the test environment parameters; and analyzing the real-time test data through a test data analysis module to obtain a test result. The controllable equivalent sky effective temperature model is introduced, and the problems that in the prior art, the sky background radiation cold effect is lacked, and the deviation between the test result and the actual building service environment is large are effectively solved.
Owner:SOUTH CHINA UNIV OF TECH

RU.521-EVs anti-radiation nanogel as well as preparation method and application thereof

The invention provides RU.521-EVs anti-radiation nanogel as well as a preparation method and application of the RU.521-EVs anti-radiation nanogel. The RU.521-EVs anti-radiation nanogel is a nanogel obtained by loading microalgae-derived extracellular vesicles and a small molecule compound RU.521 on chitosan nanoparticles formed by cross-linking chitosan, and the extracellular vesicles and the small molecule compound RU.521 are derived from microalgae. The RU.521-EVs anti-radiation nanogel has higher adhesion and permeability in the lung and effectively releases RU.521 and EVs, the RU.521 and EVs can synergistically play anti-inflammatory and anti-oxidation roles, local anti-oxidation and anti-inflammatory defense reactions of the lung are effectively started, the excellent anti-radiation effect is shown, and the RU.521-EVs anti-radiation nanogel can be used for preventing and treating radiation-induced lung injury.
Owner:ZHEJIANG UNIV

Strong electromagnetic pulse radiation effect equivalent test method under transmitting port matching condition

The invention provides a strong electromagnetic pulse radiation effect equivalent test method under a transmitting port matching condition, and the method comprises the steps: carrying out the irradiation through employing a high-power electromagnetic pulse source under a first preset field intensity, and recording a first response signal of a target cable; stopping irradiation, clamping a current injection probe on the target cable, and connecting the target cable with a signal source; performing Fourier transform on the first response signal to obtain a frequency domain signal, and determining a target pulse signal according to the frequency domain signal; adjusting the injection voltage of the current injection probe according to the target pulse signal, and monitoring a second response signal of the target cable; and performing a high-field-intensity extrapolation test according to the second response signal to complete the electromagnetic radiation effect test process. According to the invention, the equivalent difference mode response of each line to the terminal in the tested end under the irradiation and injection conditions is taken as an equivalent basis, and the equivalent pulse during injection is calculated by using the response of the irradiation test, so that the strong electromagnetic pulse radiation effect equivalent test based on the large current injection technology is completed.
Owner:ARMY ENG UNIV OF PLA

Method for predicting residual stress and deformation of TA15 alloy component through laser directional energy deposition

The invention relates to the technical field of laser manufacturing and intelligent manufacturing, in particular to a residual stress and deformation prediction method for a laser directional energy deposition TA15 alloy component, and the method comprises the following steps: constructing a thermal-metallurgical-mechanical multi-physics field coupling model; firstly, a transient temperature field model comprehensively considering heat conduction, convection and radiation effects in the laser directional energy deposition process is established based on the Fourier heat conduction theory; then, a metallurgical model is established based on the phase change principle, finally, a multi-stage phase change kinetic model is established, and diffusion control type and non-diffusion type transformation mechanisms are considered at the same time; a phase change kinetic model is introduced into a sequentially coupled thermal-mechanical framework, so that multi-scale integrated prediction from microstructure evolution to macroscopic stress distribution is realized; and a theoretical basis is provided for microstructure regulation and control and residual stress optimization of the TA15 alloy LDED process.
Owner:SICHUAN UNIV

Novel microwave probe

The invention relates to the technical field of microwave probes, in particular to a novel microwave probe, and aims to solve the problem that a test result has a large error due to radiation of a radio frequency probe based on a coplanar waveguide signal transmission principle, the novel microwave probe comprises a cable, the end part of the cable is provided with a signal pin and a wrapping ground pin, the signal pin is fixed on a conductor in the center of the cable, the wrapping ground pin is fixed on a conductor on the outer ring of the cable, a notch is formed in one side of the wrapping ground pin, and the signal pin is embedded in the notch of the wrapping ground pin to form wrapping of the wrapping ground pin on the signal pin; an air gap is formed between the wrapping ground pin and the signal pin so as to restrain radiation. The invention has the effect of improving the radiation effect.
Owner:KUNSHAN DLOORPLF ELECTRONIC TECH CO LTD

Multipurpose anti-radiation material and preparation method thereof

InactiveCN120025690APolymer scienceNeoprene
The invention discloses a multi-purpose anti-radiation material and a preparation method thereof, and relates to the technical field of anti-radiation materials, the multi-purpose anti-radiation material comprises the following raw materials by weight: 30-50 parts of gadolinium polymethacrylate, 25-40 parts of a multi-element hybrid filler, 40-70 parts of chloroprene rubber, and 50-80 parts of paraffin. According to the multi-purpose anti-radiation material and the preparation method thereof, in the preparation process of gadolinium polymethacrylate, molecular chains are connected through covalent bonds to form a stable three-dimensional network structure, so that the chemical stability is improved, the stability of the anti-radiation material is improved, the service life of the anti-radiation material is prolonged, gadolinium ions are uniformly distributed in polymer chains, and the anti-radiation effect is improved. The effective concentration and the distribution uniformity of gadolinium ions are increased, so that the anti-radiation effect of the material is improved, meanwhile, the molecular chain structure of the polymer can also generate a synergistic effect with the gadolinium ions, and the absorption capacity to rays is further enhanced.
Owner:HUAKE MEDICAL TECH BEIJING CO LTD

Combustible lower limit prediction method for mixed combustible gas

The invention belongs to the technical field of combustion science and chemical kinetics simulation, and provides a method for predicting the lower combustible limit of mixed combustible gas. The method comprises the following steps: firstly, constructing and verifying a laminar flame velocity mechanism covering a single component and multiple components and the applicability to multi-component fuel; secondly, on the basis that flame stretching and radiation effects are considered in a traditional model, a dynamic instability factor is further introduced, so that the prediction precision of the lower combustible limit of the low-Lewis-number combustible gas is improved; finally, a single-component data set is generated in a unified mode, multiple regression algorithms are adopted for training and comparison, a prediction model is determined in a preferential mode, the Lunchaterow principle is combined, generalization prediction of the multi-component combustible lower limit is achieved, and finally comparison verification is conducted with existing experimental data. According to the system and the method, the dependence on a large-scale training data set is remarkably reduced, the calculation efficiency is improved on the premise of ensuring the prediction precision, and the system and the method have obvious engineering application value and are particularly suitable for the safety-critical field.
Owner:DALIAN UNIV OF TECH

Stable numerical simulation method for synergistic effect of total ionization dose and instantaneous dose rate in semiconductor device

The invention discloses a stable numerical simulation method for a total ionization dose (TID) and transient dose rate (TDR) synergistic effect in a semiconductor device. According to the method, a control volume finite element tearing interconnection (CV-FETI) method is utilized, discontinuous boundary conditions are included in common numerical properties, a Newton method is adopted to overcome non-convergence caused by nonlinear characteristics of a drift diffusion model, a stable three-dimensional parallel numerical format is adopted, and a non-continuous boundary condition is obtained. Reliable and accurate simulation of radiation of the semiconductor device is realized. Compared with a Gummel iteration method, the method has good numerical stability and precision under the same voltage step. Through comparison with a commercial software calculation result, the effectiveness of the method is verified. The method provided by the invention has the advantages of good stability, precision and applicability, and can be used for high-efficiency and high-precision numerical simulation of the radiation effect of a semiconductor device, thereby improving the performance, robustness and reliability of an integrated circuit.
Owner:ZHEJIANG UNIV

Spaceborne storage module packaging method, spaceborne storage module and satellite

The application discloses a kind of spaceborne storage module packaging method, spaceborne storage module and satellite, the method includes obtaining the model of packaging circuit module;Thermal simulation experiment is carried out based on the model of packaging circuit module, and heat flux density distribution information is obtained;Target cooling area is determined based on heat flux density distribution information;Packaging circuit module is installed on substrate;First shielding layer is manufactured using metal material of first density;The model of second shielding layer is obtained;Micro-channel heat dissipation area is determined based on target cooling area;Second shielding layer is manufactured based on the model of second shielding layer using metal material of second density;Third shielding layer formed by coating material is prepared on the inner surface of second shielding layer, to obtain composite shielding shell;Composite shielding shell is fixedly installed on substrate through insulating adhesive layer and contains packaging circuit module, to obtain spaceborne storage module.The application makes that composite shielding shell has anti-radiation effect and heat conduction effect simultaneously, which greatly improves the heat conduction efficiency.
Owner:AXD (ANXINDA) MEMORY TECH CO LTD

Lightweight thermal infrared image enhancement and deblurring combined method

The invention discloses a lightweight thermal infrared image enhancement and deblurring combined method, and aims to solve the problems of low contrast and fuzzy details caused by factors such as low environment temperature and obvious atmospheric thermal radiation effect in thermal infrared image capture. According to the method, joint optimization is realized through cascade design of a global enhancement encoder and a deblurring decoder, a global enhancement guide vector is extracted by using a space attention mechanism to perform feature domain enhancement, fuzzy features are corrected by predicting a translation mutability convolution kernel, original image detail expression is fused, a detail edge phenomenon is sharpened while textures are reserved, and the image quality is improved. And training the model by using a global contrast enhancement loss function and a detail recovery loss function. According to the method, two tasks of enhancement and deblurring are unified in an efficient and compact network framework, detail blurring is effectively inhibited while the contrast ratio of the whole image is improved, and the visual effect of the image is enhanced.
Owner:ZHEJIANG UNIV

Radiation effect test method and system

The application discloses a kind of radiation effect test method and system, for the radiation effect of to-be-tested voltage source module is tested, comprising: when to-be-tested voltage source module is in the state of not being radiated by radiation source module, the first output voltage output by to-be-tested voltage source module provides first reference voltage signal for analog-digital conversion module, and analog-digital conversion module collects fixed analog signal and converts fixed analog signal into first digital signal;When to-be-tested voltage source module is in the state of being radiated by radiation source module, the second output voltage output by to-be-tested voltage source module provides second reference voltage signal for analog-digital conversion module, and analog-digital conversion module collects fixed analog signal and converts fixed analog signal into second digital signal;According to first digital signal and second digital signal, the voltage difference of second output voltage and first output voltage is obtained, to obtain the radiation effect of to-be-tested voltage source module.This method can capture the small output change of voltage source under radiation effect.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI LTD

Radiation-hardened bandgap reference circuit

The present invention relates to a radiation-resistant bandgap reference circuit, comprising a bandgap reference structure circuit for generating a reference voltage and a compensation current generating circuit for current compensation of transistors within the bandgap reference structure circuit. By performing current compensation on the transistors within the bandgap reference structure, the present invention reduces the impact of radiation effects on the transistor's current gain. While achieving radiation resistance, the present invention eliminates the need for high bias currents, effectively reducing system power consumption.
Owner:BEIJING SHENGYU TECH CO LTD

UWB module and electronic equipment

The embodiment of the utility model relates to the technical field of antennas, and particularly discloses a UWB module, which comprises a metal shell and an antenna unit. The metal shell is provided with an inner cavity; the antenna unit is arranged in the inner cavity, the antenna unit is coupled with the metal shell so that the antenna unit can radiate outwards through the metal shell, the antenna unit is provided with a defect gap, and the defect gap is parallel to the inner wall of the opposite part of the metal shell in the direction pointing to the edge from the center of the antenna unit. Through the above mode, the embodiment of the utility model can improve the outward radiation effect when the antenna unit is in the metal shell.
Owner:SHENZHEN SUNWAY COMM

Graphene ceramic far infrared heater

The invention discloses a graphene ceramic far infrared heater which comprises a shell and a heating table arranged above the shell, and the heating table and the shell are fixedly connected through a connecting frame. According to the invention, not only can an object material be rapidly and effectively heated, but also the focal distance between the graphene heating layer and the heated object can be adjusted according to actual needs, and the problems that the focal distance between the existing graphene heating layer and the heated object is fixedly set, so that the heat radiation distribution mode is rigid, and the heat radiation effect is poor are solved. The situation that the required heating effect is difficult to accurately realize in the face of diversified scientific research tasks due to the fact that flexible adjustment cannot be carried out according to different experiment requirements is avoided, so that the heating use is more flexible, the positioning is firmer after adjustment, and the practicability is high. The graphene heating layer on the ceramic far-infrared heater can stably heat and use a heated object, and it is ensured that the overall using effect is better.
Owner:JIANGSU TIANBAO CERAMICS CO LTD

Experimental device for coupling sky cold and hot radiation effects and control method thereof

The present application relates to the technical field of building thermal test, and provides an experimental device for coupling sky cold and hot radiation effects and a control method thereof.The device comprises a first radiation cooling component, a solar radiation component and an air cooling component, the first radiation cooling component is obliquely arranged on both sides and connected at the top to form a detection space, the air outlet of the air duct of the air cooling component is located at the bottom of the components on both sides, the air return port is opposite to the top, and the solar radiation component is fixed in the air duct away from the detection space on one side.The present application cooperatively arranges the obliquely combined first radiation cooling component, the air cooling component with air supply at the bottom and air return at the top, and the solar radiation component arranged in the air duct in isolation, constructs a detection environment balanced in cold and hot radiation, realizes coupling simulation of solar radiation heat effect and sky radiation cold effect, can more accurately test the performance of energy production type building envelope components, and solves the technical problem that the existing building thermal test device has low test precision and cannot meet the performance evaluation of energy production type building envelope components.
Owner:SOUTH CHINA UNIV OF TECH

Polyethylene blow molding product anti-radiation color-changing material and preparation method and application thereof

InactiveCN120310107APolymer scienceActive agent
The invention provides a polyethylene blow-molded product anti-radiation color-changing material as well as a preparation method and application thereof, and belongs to the technical field of plastics. Comprising the following steps: S1, adding a surfactant into water, adding nano-montmorillonite, stirring for reaction, centrifuging, washing and drying to obtain intercalated nano-montmorillonite; s2, adding the intercalated nano-montmorillonite into the graphene oxide aqueous dispersion, and performing spray drying to obtain coated intercalated nano-montmorillonite; s3, uniformly mixing the coated intercalated nano montmorillonite and the zinc oxide nano powder to prepare a compound; s4, modifying the compound by a silane coupling agent with double bonds to prepare a modified compound; s5, polyethylene is heated and melted, the modified compound is added, mixing, extrusion and granulation are conducted under irradiation of an ultraviolet lamp, and the polyethylene blow molding product anti-radiation discoloration material is prepared and has the good mechanical property and the good anti-radiation effect and is not prone to discoloration, so that the durability and weather resistance of the material are improved, and wide application prospects are achieved.
Owner:JIANGYIN LONGYUN PLASTIC IND CO LTD

Radiation effect integration method, system and device of SPICE model and medium

The invention provides a radiation effect integration method, system and device of an SPICE model and a medium, and relates to the technical field of circuit simulation, and the method comprises the steps: extracting a model parameter affected by radiation from an original SPICE model corresponding to a target device, and taking the model parameter as a radiation sensitive parameter; acquiring electrical characteristic data of the target device under different radiation conditions, extracting numerical values of radiation sensitive parameters under each radiation condition based on the electrical characteristic data, and obtaining associated data between the different radiation conditions and the numerical values of the radiation sensitive parameters; based on the associated data, establishing a mapping relationship between the radiation condition and the numerical value of the radiation sensitive parameter by using a neural network model; and substituting the mapping relation into the original SPICE model to update the numerical value of the radiation sensitive parameter so as to obtain an enhanced SPICE model containing the radiation effect. According to the invention, the behavior of each device in a real circuit can be simulated more accurately in circuit simulation through the enhanced SPICE model.
Owner:HARBIN INST OF TECH

Triple-modular redundancy method based on redundancy backup and FPGA control

The invention discloses a triple modular redundancy method based on redundancy backup and FPGA (Field Programmable Gate Array) control. Three groups of data lines are expanded on the FPGA to be connected with the Norflash, and three groups of data are read at the same time to perform triple modular redundancy calculation. The FPGA controls the four Norflash to write data at the same time during writing, and the FPGA chip selects the Norflash to output according to a logic sequence during reading, and determines whether to perform triple modular redundancy operation by judging the state of the Norflash. And sending the wrong sector number and the wrong Norflash number to the SOC chip through a serial port and a corresponding protocol, then sending the wrong sector number and the wrong Norflash number to the ground through the SOC chip, and after an instruction from the ground is received, carrying out error correction on the Norflash according to the instruction. According to the method, the influence of the radiation effect on the low-orbit satellite in the space is overcome, the cost is reduced to a certain extent, the speed and the efficiency are ensured, and meanwhile, the problems that under the condition that only three Norflash pieces exist, one Norflash piece breaks down, so that resources of the other two Norflash pieces are wasted, and data reading based on triple modular redundancy cannot be achieved are solved in a redundant backup mode.
Owner:PINGHU JUQING TECHNOLOGY CO LTD

Foreign matter detection device with protection structure

The utility model discloses a foreign matter detection device with a protective structure, which comprises a supporting seat and a conveying belt, the supporting seat is installed and connected on the upper end position of the conveying belt, and the upper end of the conveying belt is provided with a protective cover. When the blocking assembly is installed, firstly, a row of fastening bolts at the upper end of an installation strip are rotated to be rotationally connected to the inlet and outlet of the protective cover, and the blocking assembly is connected and installed in a bolt rotating mode, so that the blocking assembly is more convenient to install and is convenient to disassemble and replace subsequently, and when to-be-detected food enters and exits the protective cover, the blocking assembly is convenient to disassemble and replace. Ray radiation in the protective cover can be blocked through the blocking plates, the ray radiation is prevented from harming workers, the good protective effect is achieved, the anti-radiation coatings are arranged on the end faces of the blocking plates, and the anti-radiation effect can be further enhanced.
Owner:QINGDAO YUHE FOOD CO LTD

Heat dissipation coating structure of turbine blade of gas turbine and coating forming method

The invention discloses a gas turbine blade heat dissipation coating structure and a coating forming method, the coating structure comprises a fixing layer, a bonding layer and a surface layer which are sequentially arranged outwards from the surface of a blade base body, the fixing layer is a first multi-component alloy deposited through electroplating, the physical properties of the blade base body and a heat dissipation coating are matched, stress is eliminated, and the connecting effect is achieved; the bonding layer contains ceramic nanofibers and a second multi-component alloy, the ceramic nanofibers are subjected to polarizable modification treatment and have high thermal conductivity and thermal expansion coefficient matching performance, the surface layer is an extension part of the ceramic nanofibers, the curvature radius of the tip end is small, and therefore the heat radiation effect is enhanced; the thermal stress of the heat dissipation coating and the blade base body in the wide temperature range is effectively eliminated, the thermal radiation coefficient of the surface of the blade base body is enhanced through radiation heat exchange of the high-temperature-resistant ceramic nanofiber tips, the working temperature of the blade base body is remarkably reduced, and the fatigue resistance of the surface of the blade base body is improved.
Owner:YANTAI UNIV

Air fryer

The utility model relates to the field of kitchen appliances, in particular to an air fryer which comprises a machine body and a fryer body, a containing cavity for installing the fryer body is formed in the machine body, a heating piece and a centrifugal fan are arranged in the containing cavity and located above the center of the fryer body, and the bottom wall of the fryer body protrudes to form a plurality of food material containing areas. Food materials are placed on the top walls of the food material placing areas, and the heights of the multiple food material placing areas are gradually decreased in the direction away from the center of the pot body. In the direction pointing to the center of the pot body, the height of the food material placing area closer to the center of the pot body is higher, the distance between food materials on the food material placing area and the heating piece is closer, the radiation effect on the food materials is stronger, and therefore the problem that the temperature of the center area of the supporting face of an existing pot body is lower than that of the periphery can be solved; therefore, the food materials are uniformly and consistently colored in each food material placing area, the coloring effect is better, and the user experience is improved.
Owner:HONGYANG HOME APPLIANCES

High-thermal-conductivity plastic aluminum liner embedded inductor shell, inductor and preparation method of high-thermal-conductivity plastic aluminum liner embedded inductor shell

The invention discloses a high-thermal-conductivity plastic aluminum liner embedded inductor shell, an inductor and a preparation method, and belongs to the technical field of high-frequency inductors, the high-thermal-conductivity plastic aluminum liner embedded inductor shell comprises a high-thermal-conductivity plastic shell and an aluminum liner embedded in the high-thermal-conductivity plastic shell; according to the high-thermal-conductivity plastic inductor shell embedded with the aluminum liner, an integrated mold core injection molding technology is adopted, the aluminum liner is directly put into an injection molding machine to be subjected to integrated injection molding, and the aluminum liner and the high-thermal-conductivity plastic shell are tightly combined; the inductor comprises the high-thermal-conductivity plastic inductor shell embedded with the aluminum liner. By embedding the aluminum liner into the high-thermal-conductivity plastic, the heat radiation effect of the inductor is effectively improved, and the problem that the radiation shielding effect is poor when only a pure plastic shell is adopted for manufacturing the inductor is solved. Meanwhile, the process is simplified, the preparation method is simple and convenient, the production efficiency can be improved, the production cost is reduced, the product weight is reduced, and risks caused by the spraying procedure are avoided.
Owner:JIAN IGOR ELECTRIC CO LTD +1

Teaching demonstration device for heat transfer

The teaching demonstration device provided by the utility model comprises a shell, a heat source is arranged on the shell in a positioning, assembling and connecting manner, and a temperature sensing and color changing assembly is detachably arranged on the shell in a assembling and connecting manner; under the first combination arrangement application of the shell and the thermochromic component, in the heating process of the heat source, the thermochromic component displays a first display phenomenon of a heat conduction effect; under the second combination arrangement application of the shell and the thermochromic component, in the heating process of the heat source, the thermochromic component displays a second display phenomenon of the heat radiation effect; and under the third combination arrangement application of the shell and the thermochromic component, in the heating process of the heat source, the thermochromic component displays a third display phenomenon of the heat convection effect. Through the arrangement of the teaching demonstration device, three forms (heat conduction, heat radiation and heat convection) of heat transfer can be effectively and intuitively demonstrated, students can simply and intuitively know the heat transfer phenomenon, and a good teaching effect is achieved.
Owner:黄钰枫

A fast neutron dosimetry method for boron neutron capture therapy

The present application relates to neutron dosimetry method, specifically provide a kind of for boron neutron capture therapy fast neutron dosimetry method, by using the paired ionization chamber test system with different liquid environment, one kind of liquid environment has obvious absorption to thermal neutron, then the radiation source under the same power is measured, to obtain more accurate fast neutron dose and the rest two kinds of mixed radiation dose, to solve the problem of inaccurate neutron dose test of different kinds in the prior art in the application process of mixed radiation field, more accurate mixed radiation quantity value can be obtained, so that the different types of neutron dose in mixed radiation field are grasped, so as to improve the radiation effect in the application scene of mixed radiation field.
Owner:GUO ZHONG YI LIAO KE JI (CHONG QING) YOU XIAN GONG SI

A method for simulating radiation effects of SRAM type FPGA

This invention discloses a radiation effect simulation method for SRAM-type FPGAs. It combines device-level and circuit-level modeling simulation to simulate the combined effects of total dose and single-event effects on the FPGA, analyzing the impact of various radiation effects on the FPGA's operating state. This method solves the problems of limited accelerator resources, difficulty in adjusting irradiated particle energy, and high economic costs. It helps to understand the changes in internal micro-parameters of the device and reveal the damage mechanism, enabling the evaluation of the device's radiation damage sensitivity. It provides technical support for FPGA radiation resistance evaluation and hardening design, and is economical and convenient. It can be used to evaluate the radiation resistance of devices, contributing to improved device reliability in aerospace engineering applications.
Owner:YANGZHOU UNIV +1

Rapid evaluation method for solar cell radiation effect in GEO electric propulsion satellite orbital transfer process

The invention provides a GEO electric propulsion satellite orbital transfer process solar cell radiation effect rapid evaluation method, which comprises the following steps that: firstly, a solar cell radiation damage space distribution database is constructed through space radiation effect analysis software, and the database comprises daily average equivalent 1MeV electron flux distribution data under different orbit heights, inclination angles and cover glass thicknesses; generating satellite space track data according to an electric propulsion orbital transfer strategy; counting accumulated operation time of the satellite in each height and dip angle interval according to a preset interval; and finally, multiplying and accumulating the daily average equivalent 1MeV electron flux corresponding to each interval by the accumulated running time to quickly obtain the accumulated equivalent 1MeV electron flux in the whole orbital transfer process. Therefore, the problem of long calculation time consumption of a traditional method is solved, and rapid evaluation support can be provided for radiation mitigation optimization design of the orbital transfer strategy.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY