88 results about "Irradiation time" patented technology

The invention discloses a personalized myopia prevention and control single-spectrum irradiation optimization system, and the key points of the technical scheme are that the system comprises the following steps: 1, collecting basic data: collecting the individual basic data of a user, and enabling the individual basic data to reflect the inherent features of the eyes of the user and the basic state of myopia; step 2, collecting real-time associated data: collecting the real-time associated data of the user, wherein the real-time associated data reflects the myopia progress dynamic state of the user and a daily eye use scene; step 3, initial single-spectrum irradiation parameter generation: initial single-spectrum irradiation parameters adapted to the user are generated based on individual basic data and real-time associated data, and the initial single-spectrum irradiation parameters comprise irradiation wavelength, irradiation intensity, single irradiation duration and irradiation time period; 4, collecting eye safety data: executing single-spectrum irradiation according to the initial single-spectrum irradiation parameters, and collecting the eye safety data of the user in real time; the prevention and control effectiveness can be improved, and the individual difference problem is solved.

The invention discloses an electric power intelligent monitoring system based on multi-device cooperative linkage and an operation and maintenance method, and belongs to the technical field of electric power intelligent monitoring and operation and maintenance. Radiation data and historical decay records are collected through a sensor, a linear regression algorithm is adopted to fit and establish an energy spectrum purity attenuation model, and the dose loss proportion is calculated in real time; carrying out dynamic compensation on beam intensity and irradiation time based on the proportion, fusing real-time dose monitoring data by utilizing a Kalman filtering algorithm, and optimizing a beam intensity value to suppress noise interference; the irradiation time is further adjusted according to whether the dose loss exceeds a threshold value or not, and a dynamic compensation combination is formed; the effectiveness of the combination in each stage of the source life cycle is verified through the simulation module, and the verified compensation parameters are updated to the control system in real time, so that closed-loop regulation and control are realized. According to the invention, the whole process of dose output in the irradiation process is accurately and stably controlled, and the consistency and reliability of the irradiation process are remarkably improved.

The application relates to a kind of axial flux motor stator impregnation rapid setting method, device and equipment, including the surface of stator end portion is divided into a plurality of solidification micro area according to the three-dimensional grid model data of stator end portion;Multi-objective optimization model is constructed, and the multi-objective optimization model is with the ultraviolet irradiation intensity, irradiation time and thermal catalytic temperature of each solidification micro area as decision variable, with surface curing time, resin temperature rise peak value and total energy consumption of irradiation as optimization goal, obtain pareto optimal solution set, each pareto optimal solution corresponds a group of the ultraviolet irradiation intensity, irradiation time and thermal catalytic temperature of multiple solidification micro area;From pareto optimal solution set, select the solution with the shortest surface curing time as target solution;According to the ultraviolet irradiation intensity, irradiation time and thermal catalytic temperature of multiple solidification micro area corresponding to target solution, control ultraviolet lamp array to carry out partition scanning irradiation to stator end portion, and control infrared heater to carry out partition heating to stator end portion.

The invention discloses a gluing and gradient low-temperature pressing process for paper-plastic packaging, which comprises the following steps: S1, pretreating a base material: inspecting a printed paper-plastic composite base material, placing in a constant-temperature and constant-humidity environment for 20-24 hours, and balancing the moisture content to 5-7%; the base material is placed on a production line of a bag making machine, and the easy-to-tear line is formed through a magnetic knife; s3, point coating type gluing is conducted, specifically, a concave-convex tooth-shaped gluing roller is adopted, the heat sealing face of the paper-plastic composite base material is coated with the POE / PLA composite hot melt adhesive, and the gluing amount is 2.2-2.6 g / m < 2 >; and S4, pre-crosslinking treatment is conducted, specifically, UV irradiation is conducted on the glued base material, the irradiation wavelength is 254 nm, the irradiation time is 0.1-0.2 s, and the surface of the glue layer is preliminarily cured. The paper-plastic packaging gluing and pressing process which is low in gluing amount and gradient in low-temperature pressing, has an antibacterial function and is matched with a thin paper base material is adopted, and the paper-plastic packaging gluing and pressing process has the advantages of being low in glue overflowing rate, high in product percent of pass, capable of improving sanitation performance, stable in bonding performance and better in environmental protection performance.

This invention discloses a low-energy laser pretreatment method for enhancing the paracrine function of mesenchymal stem cells. Specifically, the method includes irradiating human umbilical cord mesenchymal stem cells with an 808nm laser. The irradiation parameters are: output power density, irradiation time of 60-120 s per irradiation, continuous irradiation of cells for 3 days, and irradiation twice a day.

The invention discloses a fat melting method and system capable of keeping energy consistent and a storage medium. The fat melting method comprises the steps that relative motion data of a laser projection end and the body surface are collected in real time, and point cloud data of the body surface are collected; according to the relative motion data and the body surface point cloud data, constructing a dynamic three-dimensional surface model of the human body surface area; acquiring a first laser irradiation parameter at the first breathing moment; according to the dynamic three-dimensional surface model, a first parameter of a fat melting area at the first breathing moment is obtained; according to the dynamic three-dimensional surface model, a second parameter of a fat melting area at a second breathing moment is obtained, and the second breathing moment is larger than the first breathing moment; calculating a parameter difference value according to the first parameter and the second parameter; the power of the first laser irradiation parameter and the single irradiation duration are corrected based on the parameter difference value, and a second laser irradiation parameter is obtained; and irradiating the fat melting area by using the second laser irradiation parameter.

The invention provides an accelerated extrapolation evaluation method for the service life of an optical element. The accelerated extrapolation evaluation method comprises the steps that the number of irradiation times when the transmittance of the optical element is degraded to a preset threshold value under different stresses is counted; obtaining the characteristic life of the optical element under each stress based on the two-parameter Weber distribution function; fitting a composite acceleration model; establishing a thermal-mechanical coupling simulation model of the optical element; forming a dynamic data set based on a preset stress step acceleration experiment; and determining the predicted service life of the optical element under the normal stress through a self-adaptive stress compression extrapolation algorithm. According to the method, the composite acceleration model is constructed on the basis of combination of actual data statistical modeling and physical simulation, so that the adaptability and prediction accuracy of the model under complex and changeable working conditions are greatly improved, and the problem of misalignment under the complex working conditions can be solved; the self-adaptive stress compression extrapolation algorithm is combined, key degradation data are obtained in an extremely short time, the experiment process is remarkably compressed, and accurate data support is provided for life prediction iteration while resource consumption is reduced.

The application provides a kind of urban self-purification enhancement method based on polyenergy laser in-situ modification building outer wall catalytic coating, the urban self-purification enhancement method includes: using polyenergy laser to in-situ scanning on the photocatalytic coating on building outer wall, induce the local high temperature field with temperature greater than 900 DEG C to form on the surface of the photocatalytic coating, make the lattice reconstitution of catalytic material in photocatalytic coating.The urban self-purification enhancement method, by using polyenergy laser in-situ scanning, control the temperature of local high temperature field formed, laser scanning speed and single point irradiation time, in the case of not damaging substrate, the regeneration of aging photocatalytic coating on building outer wall is realized;In addition, the urban self-purification enhancement method also has the advantages of low cost, wide application range and on-site operation, and has broad application prospect.

The application discloses a variable parameter laser ablation effect fast prediction method based on a finite element model and a neural network model, and solves the problems of limited application scenarios, limited application material ranges and insufficient real-time performance in the prior art. The application obtains simulation data (i.e. a second data set) through a laser ablation effect finite element model, trains and tests a neural network model through the simulation data, obtains an optimal neural network model, and then obtains corresponding data of a material to be measured according to actual working conditions, sets a calculation time step and a laser irradiation time, combines the optimal neural network model, and realizes real-time prediction of the laser ablation effect, so that the calculation precision is high, the time consumption is short, and the method is suitable for fast prediction of the laser ablation effect in a strong dynamic scene.

The utility model relates to the technical field of OCA optical cement curing, in particular to an OCA optical cement curing irradiation box which comprises a working table, a rotating disc is arranged on the upper end face of the working table in a rotating mode, a plurality of containing boxes are arranged on the upper end face of the rotating disc, a supporting frame is arranged on one side of the rotating disc, and an irradiation box body is arranged on the lower end face of the supporting frame. According to the OCA optical cement curing irradiation box, the driving assembly is arranged, the driving assembly is used for driving the rotating disc to rotate intermittently, the arrangement of the driving assembly can drive the placing boxes on the rotating disc to rotate intermittently, and therefore the irradiation time of irradiated objects on the inner sides of the placing boxes can be prolonged; therefore, the firmness of connection between the OCA optical cement on the irradiated object and the irradiated object is improved, time can be reserved for feeding and discharging of the irradiated object in the placing box, and feeding and discharging of the irradiated object on the inner side of the placing box are more stable.

This invention relates to the field of radiation sterilization technology and discloses an irradiation sterilization device for cosmetics, comprising: support legs and a transmission belt frame mounted on top of them. A rotating shaft is disposed inside the transmission belt frame, and a conveying platform is disposed outside the rotating shaft. An electron beam chamber is disposed outside the transmission belt frame, and a support platform is fixedly mounted on the top of the electron beam chamber. Vertical poles are symmetrically fixed on the top of the support platform, and a retaining pin is disposed on the lower surface of the top of each vertical pole. This invention uses a follow-up shielding part to automatically conform to the top of the cosmetics and block scattered radiation, thus preventing excessive radiation burns to the cosmetics while eliminating irradiation dead zones, resulting in more uniform and thorough sterilization. A linkage part directly links the height of the cosmetics with the conveying speed, adapting to cosmetics of different heights and pre-matching a reasonable irradiation time. A temperature control and speed adjustment part automatically fine-tunes the conveying speed based on temperature feedback, ensuring that the irradiation dose remains stable within the acceptable range.

A virus inactivation method is provided. The method includes irradiating a solution containing an artificially expressed antibody or antibody fragment with ultraviolet rays in the presence of a radical scavenger. The irradiating only aggregates 5% or less of the antibody or antibody fragment. A wavelength of the ultraviolet rays is 200 nm or longer and 315 nm or shorter. An irradiation amount of the ultraviolet rays is 300 mJ / cm2 or more. An irradiation time of the ultraviolet rays is 3 minutes or less. A concentration of the radical scavenger in the solution is 0.03 mM or more.

A laser irradiation system (1) for crushing a stone (S) in a liquid by irradiating the stone (S) in the body with a laser light, the laser irradiation system (1) comprising: a laser fiber (3) having a fiber emission end (3a) for emitting the laser light; and at least one processor for controlling the frequency of the laser light emitted from the optical fiber emission end (3a), the processor switching the frequency of the laser light between a first pulse train, which is a high-frequency pulse train having an output power for crushing the stone (S), and a second pulse train, which is a high-frequency pulse train having an output power for crushing the stone (S). The second pulse train is a waveform pulse train having a lower frequency than the first pulse train and having a peak power gradually increasing in the axial direction of the irradiation time, and the second pulse train is emitted at least either before or after the timing at which the first pulse train is emitted.

The utility model discloses a water tank and water purification equipment, the water tank comprises a stirring device, the stirring device comprises: an impeller rotatably installed in a containing cavity of a tank body; the first magnetic part is located in the containing cavity and connected to the impeller; the second magnetic part is located outside the box body, and the second magnetic part is rotatably installed on the box body and corresponds to the first magnetic part; and the driving mechanism is connected to the second magnetic piece and used for driving the second magnetic piece to move, so that the first magnetic piece drives the impeller to rotate. According to the water tank, the stirring device is arranged in the tank body, so that water in the water tank moves, stagnant water is prevented, the overall sterilization and bacteriostasis efficiency of the water tank is improved, the irradiation time of a sterilization lamp can be effectively shortened on the premise that the sterilization and bacteriostasis effects are guaranteed, energy can be saved, and aging of the water tank body can be slowed down. The magnetic force of the second magnetic piece arranged outside the box body acts on the first magnetic piece in the box body, so that the first magnetic piece drives the impeller to rotate, and tapping and sealing on the box body are not needed.

The present application relates to the technical field of radiotherapy protection material testing, in particular to an evaluation method and system for isolation protection hydrogel, the system comprises an X-ray device, an aluminum ladder, a test disc and a sample manufacturing device, the sample manufacturing device comprises a workbench, a lifting mechanism, a horizontal moving mechanism, a uniform smearing assembly, an injection assembly, a rotating mechanism and a control module. The evaluation method comprises the following steps: automatic sample preparation, sample shaping, placing aluminum ladder control sample, simulating clinical radiotherapy irradiation, X-ray detection and evaluation. The automatic equipment is used to realize the standardization of hydrogel sample preparation, the 4Gy single radiotherapy dose and 10-minute irradiation time are set to accurately simulate the clinical radiotherapy conditions, the aluminum ladder control and X-ray gray value detection are combined to quantitatively evaluate the radiation shielding effect and performance attenuation of the hydrogel. The present application realizes the automation of the sample preparation process, the test is consistent with the clinical practice, the evaluation result is accurate and objective, and reliable data support is provided for the research and development and clinical application of the isolation protection hydrogel.

This specification discloses a method for adjusting laser power during remote foreign object removal from power transmission lines. The method includes: acquiring real-time images of the laser operation area and forming a continuous video stream; identifying and classifying multiple objects within the area covered by the real-time images; for each identified object, associating a maximum tolerable laser power based on its material properties, wherein the maximum tolerable laser power is determined based on the material damage energy threshold, the laser irradiation time on the object, and the laser spot area; determining a collimator neighborhood region centered on the current laser emission point, and analyzing the power tolerance of different objects within this region based on the associated maximum tolerable laser power; calculating the maximum permissible safe output power at the current moment based on the laser's current motion direction, tracking speed, and the local safe power distribution; and dynamically adjusting the laser's output power in real time based on the maximum safe output power.

A device capable of suppressing changes in the influence of the Coulomb effect during a shot in multi-beam writing is provided. [Configuration] A drawing device 100 according to one embodiment of the present invention is characterized by comprising a multi-photoelectron source 10 that emits a multi-photoelectron beam, a photoelectron source control circuit 131 that controls the multi-photoelectron source so that, for each shot of the multi-photoelectron beam, all photoelectron beams that become ON beams among the multi-photoelectron beams in that shot have a common irradiation time and the individual beam current of each photoelectron beam is maintained constant during the shot, and a drawing mechanism 150 that draws a pattern on a sample using the multi-photoelectron beam whose individual beam current is maintained constant during the shot.

This invention provides a photosensitive polyurethane film with a surface grating, its preparation method, and its applications. The photosensitive polyurethane film with a surface grating exhibits well-defined and controllable photoresponse characteristics. Its core mechanism lies in the photosensitive monomer responding to light stimulation of a specific wavelength through a dimerization reaction: under ultraviolet light irradiation, the photosensitive monomer in the film undergoes a [2+2] cycloaddition to generate a four-membered cyclobutane dimer. This response mechanism is clear, the triggering path is independent, and the response efficiency is high. It effectively overcomes the limitations of existing coumarin derivatives, which can only achieve self-healing technology. By controlling parameters such as irradiation time and number of irradiations, multi-dimensional information storage can be achieved, significantly improving information storage capacity and stability. This effectively solves the urgent problem of high-capacity information storage in the current field of optical encryption materials, providing a feasible technical path for improving the performance and expanding the practical applications of optical encryption materials.

The application discloses an AOI detection equipment based on a PCB production line and a process thereof, and relates to the technical field of AOI detection equipment, and comprises a detection machine and a PCB board, and an executing mechanism support and an operation table are fixedly installed in the detection machine; the process further comprises the following steps: S1: a feeding and discharging conveying mechanism conveys the PCB board into the detection machine, and a placing frame receives the PCB board, at this time, a speed sensor is started and begins to collect an initial speed signal of a conveying belt. Advantages lie in that the equipment adopts three groups of differentiated light sources to adapt to plane defects, three-dimensional structures and special material areas, is matched with synchronous light filtering and light shielding design, reduces the missing detection rate of three-dimensional blind areas and the false detection rate of special materials, can further improve the precision through positioning compensation, and on the speed, the sensor adjusts the light source, the light filtering piece switching frequency and intelligently distributes the irradiation time length in real time, guarantees the constant unit length detection coverage, and provides a core guarantee for the stable operation of the AOI equipment in a complex production line environment.

The invention discloses AOI detection equipment based on a PCB production line and a process thereof, and relates to the technical field of AOI detection equipment, the AOI detection equipment comprises a detection machine and a PCB, and an execution mechanism support and an operation table are fixedly installed in the detection machine; the method further comprises the following steps that S1, the feeding and discharging conveying mechanism conveys the PCBs into the detection machine, the placement frame carries the PCBs, and at the moment, the speed sensor is started and begins to collect initial speed signals of the conveying belt; the equipment has the advantages that the equipment adopts three groups of differential light sources to adapt to plane defects, a three-dimensional structure and a special material area, and is matched with a synchronous filtering and shading design, so that the omission ratio of a three-dimensional blind area and the false detection rate of a special material are reduced, and the precision can be improved through positioning compensation; in terms of speed, the sensor adjusts the light source and the switching frequency of the optical filter in real time, intelligently distributes irradiation duration, ensures constant detection coverage rate per unit length, and provides core guarantee for stable operation of AOI equipment in a complex production line environment.

The invention provides a light dose control method and device and a physical therapy lamp, and relates to the technical field of physical therapy lamps, the physical therapy lamp comprises at least one light emitting array, light emitting monomers with different wavelengths and different numbers are configured in the array, and a touch screen is used for generating a control signal of a target light dose. After the system receives the control signal, a light dose calculation process is started, distribution information, wavelength types and irradiation distances of the light-emitting monomers and preset irradiance data corresponding to different wavelengths and distances are obtained, and the output percentage, the pulse mode, the power mode and the irradiation time of each wavelength channel are obtained. The system calculates the current light dose based on the irradiance data, the output percentage, the pulse coefficient, the irradiation time and the power coefficient, and adjusts the irradiation parameters of the light-emitting array according to the difference value between the calculation result and the target light dose, including the adjustment power, the pulse mode, the irradiation time or the number of switches of the light-emitting monomers, so that the output light dose meets the target requirement.

The application relates to a preparation method of low water absorption rate nylon 66, which comprises the following steps: uniformly mixing 1-3 wt% cerium methacrylate, 1 wt% antioxidant and 96-98 wt% dried nylon 66 in a high-speed mixer; extruding and granulating through a double-screw extruder and a granulator, injection molding, and preparing the nylon 66 after electron beam irradiation with a dose of 50-100 kGy. In the application, cerium methacrylate is used as an irradiation crosslinking agent, the coordination of cerium enhances the crosslinking effect of the nylon 66, the saturated water absorption rate of the nylon 66 is significantly reduced, and the mechanical properties of the material are enhanced; the saturated water absorption rate of the nylon 66 in boiling water can be reduced to below 3.5% (the water absorption rate before modification is 7.2%), and the tensile strength of the material after water absorption is maintained above 70%; the irradiation dose is easy to control in the electron beam irradiation modification process, the irradiation time is short, the production efficiency is high, there is no pollution, and large-scale production can be realized.

A graphical user interface (GUI) that includes a representation of a target volume and sub-volumes of the target volume is rendered and displayed. Information in computer system memory that includes a dose rate received by each sub-volume is accessed. A value of an attribute is associated with each sub-volume, where the value corresponds to an amount of the dose rate received by that sub-volume. Each sub-volume is then rendered according to that value. The GUI may include a dose rate-volume histogram and / or an irradiation time-volume histogram for the target volume.

The invention relates to a method for producing a coated lens (10), wherein the method comprises at least the following steps: The invention involves applying a coating precursor material (12) to a surface of an uncoated or precoated lens substrate body (14) and subjecting the coating precursor material (12) on the lens substrate body (14) to electromagnetic radiation (24) in order to cure the coating precursor material (12), wherein the material of the lens substrate body (14) at least partially absorbs the electromagnetic radiation. According to the invention, the electromagnetic radiation (24) is applied to the applied coating precursor material (12) for an irradiation time ts such that the lens substrate body (14) reaches a temperature T at least on one side facing the coating precursor material (12). Hfor photonic hardening, in which the coating precursor material (14) and the material of the lens substrate body (12) bond, wherein the intensity of the electromagnetic radiation (24) and the irradiation time ts are selected such that during treatment a shear force introduced into the lens substrate body (14) from the coating precursor material (12) only causes a deformation of the lens substrate body (14) that is below a predetermined limit value G.

A MXene membrane with gradient pores, its preparation method and application are provided. The MXene membrane with gradient pores, excluding the substrate, includes the following layers in sequence from bottom to top: an ultra large pore MXene membrane layer with a thickness of 0-30 nanometers (nm) and a pore size of 2-5 nm; a large pore MXene membrane layer with a thickness of 0-30 nm and a pore size of 0.9-1.2 nm; a medium pore MXene membrane layer with a thickness of 20-50 nm and a pore size of 0.6-0.8 nm; and a small pore MXene membrane layer with a thickness of 40-60 nm and a pore size of 0.3-0.5 nm. The present disclosure prepares the MXene membrane with gradient pores by repeating spin-coating and plasma irradiation while limiting the irradiation time.

This invention provides a sulfur-containing polymer, its preparation method, and its applications. The method involves irradiating a mixture of elemental sulfur and unsaturated organic monomers at room temperature to induce a reverse sulfurization polymerization reaction. The crosslinked network structure of the sulfur-containing polymer can be adjusted by controlling light parameters such as wavelength, power density, and irradiation time. Specifically, this invention controls the power density to be 600-1300 mW / cm². 2 Irradiation time ≥2h effectively improves the photoinitiation efficiency of room temperature photoinduced reverse sulfurization polymerization, significantly shortens the reaction time, and enables efficient production of sulfur-containing polymers with adjustable crosslinking degree, gel content, swelling ratio, and glass transition temperature under mild conditions. This method overcomes the problems of low initiation efficiency and long reaction time in existing room temperature photoinduced reverse sulfurization technologies, and combines the dual advantages of low energy consumption and high preparation efficiency.

The application provides a kind of corrective etching method and equipment, it is related to integrated circuit manufacturing technical field.The method comprises the following steps: providing etched wafer; the surface of the wafer is non-destructive measurement, obtains the surface parameter of each surface area of wafer; based on the surface parameter and collation target value, the required correction etching amount of each surface area of wafer is calculated; the surface of wafer is irradiated by focused light beam to induce etching; based on the position information and the correction etching amount, the light irradiation parameter of the focused light beam is adjusted accordingly, different irradiation amount is applied to each surface area of wafer, to obtain the required correction etching amount, the light irradiation parameter includes light intensity and / or irradiation time length.The application can correct the surface of etched wafer, so that the size of each area of wafer surface is consistent, improve etching uniformity, so as to improve the performance and yield of final product.

A hexagonal silicon carbide ceramic core structure optimization method, the method is suitable for the hexagonal core structure involved in space nuclear power reactor, accelerator driven subcritical nuclear energy system, modular small reactor and other advanced reactors. The structure optimization method comprises the following steps: 1. Establishing a geometric model: setting the geometric size of the hexagonal silicon carbide ceramic core, setting the size, number and position of the fuel element or the coolant channel; 2. Adding a multi-physics field calculation module: according to the service condition, adding the irradiation field, temperature field, flow field and solid stress-strain field of the hexagonal silicon carbide ceramic core; 3. Setting the calculation domain boundary: setting the neutron flux density and irradiation time in the core, the coolant inlet temperature, the core volume heat source input, the coolant inlet velocity, and the material properties of silicon carbide; 4. Setting and parallel solving parameters: setting the number of parallel jobs and the number of cores occupied by a single job; 5. Carrying out the structure optimization design of the hexagonal silicon carbide ceramic core.

This invention belongs to the field of environmental pollution detection and treatment technology, specifically relating to a SiO2@Ag / ZnO flexible substrate and its application in the detection and degradation of malachite green. A SiO2@Ag nanocomposite material is prepared by modifying Ag nanoparticles onto the surface of SiO2 spheres. Further, ZnO is attached to the surface of SiO2@Ag to prepare the composite material SiO2@Ag / ZnO. A SiO2@Ag / ZnO flexible substrate was successfully prepared by attaching SiO2@Ag / ZnO to fabric. This material exhibits detection capability at lower concentrations and demonstrates stable response to concentration changes in SERS signal detection of malachite green, exhibiting high quantitative accuracy and suitability for SERS quantitative analysis. Simultaneously, this material achieves stable degradation of malachite green under light irradiation conditions; the degradation rate gradually increases with prolonged ultraviolet light irradiation time, reaching a maximum degradation rate of 91.1%.