184 results about "Irradiation time" patented technology

Disclosed are a radiotherapy system and a treatment plan generation method therefor. The radiotherapy system includes a beam irradiation device, a treatment planning module and a control module. The beam irradiation device generates a beam for treatment and irradiates same to a body to be irradiated to form an irradiated site, the treatment planning module generates a treatment plan on the basis of parameters of the beam for treatment and medical image data of the irradiated site, and the control module retrieves a treatment plan corresponding to said body from the treatment planning module and controls the beam irradiation device to sequentially irradiate said body according to at least two irradiation angles determined according to the treatment plan generation method and the irradiation time corresponding to each irradiation angle.

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 invention relates to the field of medical resource scheduling, in particular to a multi-chamber particle therapy method, system and device, a storage medium and a computer storage medium, and the system comprises an irradiation source which is used for generating a particle beam; the plurality of particle treatment rooms are used for sending beam requests and receiving the particle beams; the beam transport device is used for transmitting the particle beam from the irradiation source to the particle treatment room; and the control device is used for receiving the beam requests of the particle treatment room, calculating the priority for each beam request according to the reserved irradiation time, the tumor type and the patient condition included in each beam request, and controlling the beam transport device to transport the particle beams according to the priorities. According to the method, the utilization efficiency of beam resources can be remarkably improved, the urgency degree and clinical importance of treatment are fully considered, and the demand intensity of different requests for the beam resources can be quantitatively reflected.

The invention provides a multi-satellite cooperative beam position distribution method, system and device, and an electronic device, which can solve the technical problem of low operation efficiency in a multi-satellite multi-beam position scene in the prior art. The method comprises the following steps: determining a coverage wave position set of a to-be-distributed satellite at a first moment; determining a to-be-transmitted service priority of each coverage wave position in the coverage wave position set; according to the priority of the service to be transmitted, based on a first preset condition, determining a first target satellite of each coverage wave position; the remaining irradiation time of the first target satellite is greater than or equal to a preset beam position distribution period; and according to the first target satellite and the coverage wave position, obtaining a wave position distribution result of each to-be-distributed satellite. And invalid calculation is reduced through priority screening of to-be-transmitted services. And screening the first target satellites of which the residual irradiation time is greater than or equal to the preset period, excluding satellites of which the time does not reach the standard, simplifying a matching link and ensuring continuity, thereby preventing multiple satellites from competing for resources, reducing interference and reducing energy loss.

The invention relates to the technical field of solid-liquid interfaces and liquid drop movement and control, in particular to a method and device for achieving left-right controllable spontaneous rotation of liquid drops based on light induction, and the method comprises the following steps that acid liquid drops containing photoacid are dropwise added to the surface of liquid metal; a light source system is adopted to irradiate liquid drops on one side of the liquid drops, the liquid drops are induced to locally release non-uniform H < + > ions, and interface chemistry is initiated to generate gradient change distribution; the light intensity generated by the light source system promotes the formation of asymmetric tension distribution on the liquid drop and liquid metal interface, and drives the liquid drop to rotate along a preset direction; and by changing the irradiation position, the liquid drops can be switched between left rotation and right rotation. According to the present invention, by using the mechanism of combining the interface Marangoni effect and the light-induced acidity regulation and control, the stable and rapid spinning behavior of the liquid drop can be represented by adjusting the position, the irradiation time and the irradiation intensity of the illumination region, and the rotation direction can be reversibly switched between the left rotation and the right rotation.

The invention belongs to the technical field of photoelectric devices, and relates to a method for widening the detection wave band of a two-dimensional TMDC heterojunction photoelectric device and the photoelectric device. The TMDC heterojunction is doped through heavy ion irradiation, so that the light absorption wave band of the TMDC heterojunction is expanded to a solar blind ultraviolet range. The method overcomes the defects that impurities are easy to introduce, the uniformity is poor, the position is uncontrollable and the like in the doping process of other methods, the advantages that ions provided by an accelerator are high in purity, controllable in energy, controllable in number, accurate and controllable in position and the like are utilized, the defect that different concentrations can be doped in different areas of a device according to needs by adjusting the incident energy, the position and the irradiation time of the ions, and the device is high in doping efficiency. The photoresponse of the device is regulated and controlled through defect engineering, and the detection band of the device is widened to the deep ultraviolet band.

The invention provides a multi-beam laser quenching method, and relates to the technical field of quenching, the multi-beam laser quenching method comprises the step of providing a plurality of laser beam sources during quenching, and more accurate heating and cooling control is realized through dynamic adjustment of the laser beam irradiation sequence, time and power by the multi-beam laser quenching method. According to real-time surface temperature data, the uniformity and depth adjustability of a hardened layer on the surface of the workpiece are ensured, the power, irradiation time and scanning path of the laser beam are adjusted according to the real-time surface temperature data, and uniform distribution of the surface temperature of the workpiece is realized, so that the thermal stress problem in the traditional technology is reduced, the heating effect is optimized, and the uniformity of the surface temperature of the workpiece is ensured; and the cooling rate is controlled, the compactness of a hardened layer is ensured, the wear resistance and fatigue resistance of the workpiece are enhanced, the quenching process is optimized, the surface quality of the workpiece is improved, higher innovativeness and adaptability are achieved, and the method is particularly suitable for surface hardening treatment of workpieces in complex shapes or made of special materials.

The invention provides a BNCT treatment plan generation method and device based on a barrier algorithm, a medium and a terminal. The method comprises the following steps: acquiring a plurality of irradiation fields; respectively calculating dose distribution per unit time of each irradiation field; taking the irradiation time combination of the plurality of irradiation fields as a generation target, and determining an evaluation index and a constraint condition of the generation target; obtaining the generation target of the minimum value of the evaluation index under the limitation of the constraint condition based on a barrier algorithm so as to obtain an optimal irradiation time combination of the plurality of irradiation fields; and determining the irradiation time of each irradiation field based on the optimal irradiation time combination so as to generate a BNCT treatment plan based on the irradiation time of all the irradiation fields and the corresponding unit time dose distribution. According to the method and the device, the BNCT treatment plan with relatively high dose uniformity can be generated, the damage to surrounding healthy tissues can be reduced while sufficient radiation dose is ensured to be received, and the safety of radiotherapy is effectively 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.

Radiation treatment planning includes accessing values of parameters such as a number of beams to be directed into sub-volumes in a target, beam directions, and beam energies. Information that specifies limits for the radiation treatment plan are accessed. The limits include a limit on irradiation time for each sub-volume outside the target. Other limits can include a limit on irradiation time for each sub-volume in the target, a limit on dose rate for each sub volume in the target, and a limit on dose rate for each sub-volume outside the target. The values of the parameters are adjusted until the irradiation time for each sub-volume outside the target satisfies the maximum limit on irradiation time.

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.

A distance measuring device includes: a light emitting unit for emitting light having a modulation frequency to an object; a light receiving unit for receiving light emitted from the light emitting unit and reflected by the object and returned; and a controller for measuring the length of time between the time of light emitted by the light emitting unit and the time of light received by the light receiving unit based on the radiation intensity of the light received by the light receiving unit, so as to obtain the distance to the object. The controller performs a first measurement, causing the light emitting unit to emit light of a first irradiation time and a second irradiation time longer than the first irradiation time at a first modulation frequency, thereby measuring the length of time before the light is received by the light receiving unit with a first plurality of times. The controller performs a second measurement, causing the light emitting unit to emit light of a third irradiation time at a second modulation frequency, thereby measuring the length of time before the light is received by the light receiving unit with a second plurality of times less than the first plurality of times. The third irradiation time is longer than the first irradiation time and shorter than the second irradiation time. It is possible to achieve reduction of aliasing and increase of dynamic range.

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.

According to the low-temperature curing and packaging device and method for the oil-containing rock sample, a low-temperature environment is provided through the freezing assembly, ultraviolet rays emitted by the ultraviolet lamp are matched, and the sample is cured and packaged through the curing glue; a temperature sensor, an electromagnetic valve and a temperature regulator in the control assembly jointly regulate and control the temperature, and an optical power regulator and an irradiation duration regulator respectively regulate and control the irradiation intensity and the irradiation duration, so that proper temperature, irradiation intensity and irradiation duration are provided for low-temperature curing and packaging of the oil-containing rock sample; the problem that polymerization reaction cannot be initiated under heating or low temperature in the traditional curing process is solved, the original oil-containing occurrence state of the rock sample is kept, and the requirement for low-temperature curing packaging of the oil-containing rock sample is met.

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.

To provide a device and a method for preventing, improving, or preventing a worsening of depression by irradiating light having specific wavelengths, such as violet light, as well as a method for operating the device. The problem is solved by a device and a method used for the purpose of preventing, improving, or preventing a worsening of depression by irradiating a subject with violet light having a wavelength within a range of 360 to 400 nm. An operating method of a device is a method for operating a device including irradiation means for irradiating a subject with violet light having a wavelength within a range of 360 to 400 nm and used for the purpose of preventing, improving, or preventing a worsening of depression. The operating method comprises operating the irradiation means of the device by changing, by transmission and reception with an isolation controller such as a mobile terminal, one or more irradiation conditions selected from an irradiation state (including continuous light or blinking frequency), an irradiance, an irradiation time, an irradiation start time, and an irradiation end time.

[Problem to be solved] An object of the present invention is to provide a Raman spectroscopy analysis method that identifies the number of irradiation times of laser light at which a sample to be analyzed is damaged by the laser light during multiple Raman spectroscopy measurements and performs structural analysis of the sample to be analyzed using data on Raman scattering light obtained when the sample to be analyzed is in an undamaged state.[Solution] A Raman spectroscopy analysis method including: dispersing an obtained Raman scattering light; identifying an upper limit of the number of irradiation times at which the sample to be analyzed is not damaged from total scattering intensity in a specific wavenumber range, a ratio of the total scattering intensity in the specific wavenumber range for each time irradiation to the total scattering intensity in the specific wavenumber range for first time irradiation and a correlation coefficient; using Raman scattering light data up to the upper limit of the number of irradiation times.

A method comprises cleaning a surface of a reticle by irradiating the surface of the reticle in a first exposure device for a predetermined irradiation time. A layout pattern of the reticle is projected onto a photo resist layer of a wafer in a second exposure device by an EUV radiation. The photo resist layer is developed to generate a photo resist pattern on the wafer. A surface of the wafer is imaged to generate an image of the photo resist pattern on the wafer. The generated image of the photo resist pattern is analyzed to determine critical dimension uniformity (CDU) of the photo resist pattern. The predetermined irradiation time is adjusted until the determined CDU satisfies a predetermined criterion.

A laser light irradiation system (1) for irradiating a calculus (S) present in the body with laser light to fragment the calculus (S) in a liquid comprises: a laser fiber (3) having a fiber emission end (3a) from which the laser light is emitted; and at least one processor that controls the frequency of the laser light emitted from the fiber emission end (3a). The processor switches the frequency of the laser light between a first pulse group having a high frequency and a power output for fragmenting the calculus (S), and a second pulse group having a frequency lower than that of the first pulse group and a waveform in which the peak power gradually increases in the direction of the axis for irradiation time, and causes the second pulse group to be emitted at least either before or after the timing at which the first pulse group is emitted.

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.

The present invention belongs to the technical field of the interaction between laser and matter, and relates to a simulation method and system for the temperature field and stress field of a material irradiated by short-pulse laser. The simulation method includes: determining simulation parameters, including short-pulse laser irradiation parameters and material property parameters; constructing a thermo-mechanical coupling transient model of the material, and determining the boundary conditions of the heat transfer physical field and the solid mechanics physical field of the model; performing grid division on the thermo-mechanical coupling transient model, and configuring solver parameters; specifically: inputting the short-pulse laser pulse width and the short-pulse laser frequency into a pre-trained linear neural network model, and calculating to obtain the solver parameters; applying the solver to solve the thermo-mechanical coupling transient model to obtain the temperature field and stress field distribution of the material at different irradiation times. The simulation method of the present invention can comprehensively and accurately capture the complex transient physical process of the material under the action of short-pulse laser.

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.

The application discloses a metal fuel irradiation test physical thermal analysis method, device, equipment and medium, relates to the field of nuclear reactor physics and thermal engineering, and comprises the following steps: determining the burnup depth information of the metal fuel according to the measured thermal power, inputting the burnup depth information into a pre-configured structure swelling model for analysis, obtaining the volume swelling rate of the metal fuel in the axial direction and the radial direction, updating the structure size of the metal fuel according to the volume swelling rate, and updating the thermal conductivity of the metal fuel according to the updated structure size; according to the burnup depth information, the updated structure size of the metal fuel and the burnup distribution situation calculated by the burnup management calculation model based on the determinism method, the burnup distribution curve of the metal fuel at the corresponding irradiation time is refitted, the heat release calculation is carried out according to the burnup distribution curve, and the heat release distribution information of the metal fuel is obtained; the heat release distribution information of the metal fuel, the updated structure size and the thermal conductivity of the metal fuel are input into a sub-channel analysis model for thermal analysis, and the key thermal parameters of the metal fuel are obtained.

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.