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70 results about "Target fibers" patented technology

Dynamic optimization method and device for automatic fiber placement path of composite material and medium

The invention discloses a dynamic optimization method and device for an automatic fiber placement path of a composite material and a medium, and belongs to the technical field of automatic fiber placement of composite materials. The method comprises the steps that a three-dimensional model of a component to be laid is obtained, and curved surface curvature distribution characteristics and fiber laying angle constraints are obtained based on the three-dimensional model; processing the curved surface curvature distribution characteristics based on a path planning algorithm to generate an initial fiber placement path; on the basis of the tension mapping table and the temperature compensation coefficient, the fiber placement head is driven to execute reverse pre-tension control; acquiring actual fiber trend data according to a preset sampling period based on a polarization laser polarization instrument, and extracting a fiber angle deviation of the actual fiber trend data; processing the fiber angle deviation and the resin viscoelasticity data based on a Bayesian optimization algorithm so as to dynamically correct the laying path and generate an updating instruction; and adjusting the spatial pose and tension of the fiber placement head according to the updating instruction. Based on the method, dynamic multi-target fiber placement path optimization and real-time feedback control are realized.
Owner:SHENYANG HIGHLY INTELLIGENT TECH CO LTD

Basalt fiber multi-bushing wire drawing control method, system, equipment and medium

The invention discloses a basalt fiber multi-bushing wire drawing control method, system and equipment and a medium. The basalt fiber multi-bushing wire drawing control method comprises the following steps that the real-time temperature, the real-time viscosity and the melt flow of a target bushing and the target fiber diameter of the target bushing are obtained; inputting the real-time temperature, the real-time viscosity, the melt flow and the target fiber diameter into a preset dynamic equilibrium equation to obtain a dynamic equilibrium index; whether the dynamic balance index is larger than a preset index threshold value or not is judged, and if yes, the melt flow is input into a preset flow compensation equation to obtain a flow compensation value; after the wire drawing control process is guided to reach preset time based on the flow compensation value, whether the dynamic balance index is larger than a preset index threshold value or not is judged again; if yes, the real-time temperature is input into a preset temperature compensation equation to obtain a temperature compensation value, and the wire drawing control process is guided based on the temperature compensation value, and the wire drawing control method and device have the advantages that the priority sequence of regulation and control indexes can be reasonably planned, and the wire drawing regulation and control efficiency is improved.
Owner:CHENGDU SHUHONG EQUIP MFG

Fiber identification without cut point using distributed fiber optic sensing

Systems, methods, and structures for efficiently identifying individual fibers located in a deployed cable that advantageously reduces laborious field efforts while reducing service outage time. The systems and methods locate a targeted fiber in a cable (“Cable ID”) and then identify the targeted fiber (“Fiber ID”) by detecting DFOS signal attentions—without cutting the optical fiber. Two distinct determinations may be made namely, Cable ID and Fiber ID. DFOS operation detects vibration signals occurring along a sensor fiber. As implemented, Cable ID is an interactive-machine learning-based algorithm that automatically locates cable position along a sensor fiber route. Fiber ID detects a signal attenuation by bending a group of fibers with bifurcation to pinpoint a targeted individual fiber within a fiber cable.
Owner:NEC CORP

Planning method, device and equipment for treating brain glioma through multi-fiber laser ablation

The invention relates to a planning method, device and equipment for treating brain glioma through multi-fiber laser ablation. The method comprises the following steps: according to pre-acquired image information of a target patient and a segmentation result of a tumor region, sequentially performing segmentation sampling processing on the image information to obtain a candidate optical fiber path set; screening the candidate optical fiber path set according to an optical fiber planning objective function and an optical fiber planning constraint condition to obtain an intermediate optical fiber path set, and determining the number of optical fibers required by tumor ablation according to the intermediate optical fiber path set; determining a target optical fiber path set from the intermediate optical fiber path set according to the number of optical fibers required by tumor ablation and a predetermined path evaluation score; the target optical fiber path set at least comprises position information corresponding to each target optical fiber path. The method can improve the tumor ablation rate and reduce the use of optical fibers.
Owner:TSINGHUA UNIVERSITY

Phase change energy storage fiber with ultraviolet shielding and heat regulation and control functions and preparation method of phase change energy storage fiber

The invention relates to a phase change energy storage fiber with ultraviolet shielding and heat regulation and control functions and a preparation method of the phase change energy storage fiber. The preparation method comprises the following steps: dissolving thermoplastic polyurethane in N, N-dimethylformamide to form a spinning mother solution; the preparation method comprises the following steps: firstly, adding nano titanium dioxide and uniformly dispersing, then adding a silicon dioxide shell layer-octadecane core layer phase change microcapsule, and stirring and ultrasonically defoaming to obtain a uniform composite spinning solution; extruding the spinning solution into a coagulating bath consisting of isopropanol and deionized water through an injection pump, and coagulating and forming to obtain nascent fibers; finally, washing, solvent replacement, tension setting and drying treatment are conducted, and compared with the prior art, the obtained fiber has efficient ultraviolet shielding performance and remarkable phase change energy storage capacity and has wide application prospects in the fields of intelligent temperature adjusting textiles, outdoor protective garments, building heat management and the like.
Owner:SOUTHEAST UNIV

Basalt fiber multi-plate drawing control method, system, device and medium

ActiveCN120698697BGuaranteed monitoring accuracyEffective viscosity adjustmentGlass making apparatusGlass productionBasalt fiberMechanics
The application discloses a basalt fiber multi-escape plate wire drawing control method, system, device and medium, including the following steps: obtaining the real-time temperature, real-time viscosity, melt flow and target fiber diameter at the target escape plate; inputting the real-time temperature, real-time viscosity, melt flow and target fiber diameter into a preset dynamic balance equation to obtain a dynamic balance index; judging whether the dynamic balance index is greater than a preset index threshold, if yes, inputting the melt flow into a preset flow compensation equation to obtain a flow compensation value; after guiding the wire drawing control process to reach a preset time based on the flow compensation value, judging again whether the dynamic balance index is greater than the preset index threshold; if yes, inputting the real-time temperature into a preset temperature compensation equation to obtain a temperature compensation value, and guiding the wire drawing control process based on the temperature compensation value, the application has the advantages of reasonable planning of priority order of control indicators and improved wire drawing control efficiency.
Owner:CHENGDU SHUHONG EQUIP MFG

High mesh screen for fiber content testing

This utility model provides a high-mesh sieve for fiber content testing, including a base. The base has an output chamber tube with an opening that runs vertically through it. A detachable sieve is installed at the top of the output chamber tube. The sieve tube has a screening chamber with an outward opening. A high-mesh sieve is fixedly installed at the bottom of the screening chamber. Two splitting bases are fixedly installed on the inner wall of the screening chamber, with the splitting bases on both sides symmetrically arranged. This design, through the cascading design of an upper low-mesh sieve and a lower high-mesh sieve, achieves a synergistic operation mode of rapid impurity separation by coarse sieving and targeted fiber retention by fine sieving, thus improving fiber separation efficiency. Furthermore, the sieve frame is made of 304 stainless steel, and the middle sieve uses polyvinyl chloride fabric, improving the durability of the sieve and extending its service life.
Owner:ZHEJIANG HENGXIANG TESTING TECH SERVICE CO LTD

Fiber core positioning method, device and terminal of confocal microendoscope

The invention relates to the field of confocal microendoscopes, in particular to a fiber core positioning method and device of a confocal microendoscope and a terminal. The method comprises the steps of obtaining multiple frames of optical fiber end face images; fusing and filtering the plurality of frames of optical fiber end face images to generate a fiber core response image; positioning a fiber core bundle estimation center of the fiber core response image; diffusing from inside to outside based on the fiber core bundle estimation center, and positioning the position of a first target fiber core; and removing the pseudo fiber core points which are close to each other. In a calibration stage or a fiber core tracking stage, firstly, fusion processing is carried out on collected multi-frame optical fiber end face images, noise in the images is filtered, filtering is carried out on the fused images, the position of a fiber core is highlighted, interference is filtered, then an estimation center of a fiber core beam is positioned through a distance clustering method, and the fiber core is tracked. Therefore, the position of each fiber core is diffused outwards from the estimation center, the anti-interference capability is remarkably improved, the positioning precision is high, the response speed is high, and the imaging performance and reliability are improved.
Owner:VIESTAR (HUBEI) MEDICAL TECHNOLOGY CO LTD

Mass spectrometry method, discrimination model creation method, fiber discrimination method, program, information processing apparatus, and fiber discrimination system

PendingUS20260066253A1Ion sources/gunsMaterial testing goodsLaser desorption ionization mass spectrometryPolyethylene terephthalate glycol
A mass spectrometry method according to the present disclosure is a mass spectrometry method in a method for discriminating whether a polyethylene terephthalate fiber contained in a target fiber is a recycled fiber. The mass spectrometry method includes a step of preparing a sample and a step of measuring the sample using matrix-assisted laser desorption / ionization mass spectrometry. The step of preparing the sample has a step of dissolving the target fiber in a first solvent to prepare a solution, a step of adding tetrahydrofuran to the solution to separate the solution into a precipitate and a supernatant, a step of obtaining the supernatant, and a step of preparing a mixed solution containing the supernatant and a matrix on a sample plate.
Owner:SHIMADZU CORP

Curved needling mechanism and three-dimensional needling device comprising same

The application discloses a curved surface needling mechanism and a three-dimensional needling device containing the same. The curved surface needling mechanism can automatically needling and reinforce the curved surface, so that the automation of the fiber composite material preform curved surface part needling and reinforcement can be realized, the overall automation degree and processing efficiency of the fiber composite material preform processing are improved, the consistency and reliability of the product can be effectively ensured, and the technical problems of poor consistency and reliability and low processing efficiency caused by manual needling and reinforcement of the fiber composite material preform curved surface part in the prior art are solved. Meanwhile, the three-dimensional needling device is also provided with an automatic feeding mechanism and an automatic cutting mechanism, automatic feeding is realized, and the shape of the target fiber composite material preform can be automatically cut, so that the automation degree of the whole preform manufacturing is improved, the production efficiency is improved, and the risk of personnel injury is reduced.
Owner:DONGHUA UNIV

Manufacturing method of fiber Bragg grating and vibration event detection method

The present invention relates to the field of fiber Bragg grating technology, and specifically provides a method for manufacturing a fiber Bragg grating and a method for detecting vibration events. The method comprises: constructing a first transmission matrix and a first grating period distribution function for a first sub-grating with a variable grating period; determining a second transmission matrix for a second sub-grating based on the first transmission matrix, wherein the second sub-grating is complementary and symmetrical to the first sub-grating; obtaining a first optimal transmission matrix, a second optimal transmission matrix, and a first optimal grating period distribution function by solving a joint optimization problem; determining a second grating period distribution function for the second sub-grating based on the first optimal grating period distribution function; and determining the first sub-grating and the second sub-grating, and correspondingly connecting them in series to obtain a target fiber Bragg grating. This method addresses the problem in related arts that fiber Bragg gratings cannot achieve both high sensitivity, signal-to-noise ratio, and stability, while also having a relatively simple design and manufacturing process.
Owner:JIANGSU HENGTONG MARINE CABLE SYST CO LTD

High-volume-fraction fiber spatial distribution method and system for carbon fiber resin-based composite material

The invention discloses a high-volume-fraction fiber spatial distribution method and system for a carbon fiber resin-based composite material. The method comprises the following steps: S1, acquiring a plurality of fiber coordinate points and fiber radiuses falling in a specified generation area; s2, determining a fiber center coordinate according to the fiber coordinate point and the fiber radius; s3, judging whether the fiber coordinate point falls into a dead zone or not, and if so, repositioning the single fiber; s4, judging whether a target fiber volume fraction is reached in the specified area or not, if not, continuing to place the fibers, executing S5, and if the target fiber volume fraction is reached, executing S6; s5, the spatial positions of the multiple fibers with the determined coordinate information in the designated area are repositioned; and S6, after the target fiber volume fraction is reached, generating a corresponding image to check whether the position relationship among the fibers meets the non-overlapping geometric constraint or not, and if not, carrying out secondary relocation on the fibers in the specified area.
Owner:HOHAI UNIV

Long-acting anti-ultraviolet high-stability kevlar fiber and preparation method thereof

PendingCN122358347APolymer scienceSpinning
This invention relates to the field of high-performance fiber materials technology, and discloses a long-lasting, UV-resistant, and highly stable Kevlar fiber. Using para-aramid as a matrix, it incorporates in-situ copolymerized grafted bis(aminotriazine)-benzimidazole UV-stabilizing units, and its surface is covalently bonded with a CeO2-TiO2 composite nanolayer via a silane coupling agent. This results in excellent UV resistance and structural stability, with a UPF value of 50-100+, and a strength retention rate of ≥90% after 500 hours of xenon lamp aging. It also retains ultra-high strength, high modulus, and high-temperature resistance. The preparation method includes synthesizing the bis(aminotriazine)-benzimidazole comonomer, low-temperature polycondensation of this comonomer with p-phenylenediamine and terephthaloyl chloride to obtain a copolymer spinning solution, followed by dry-wet spinning, alkaline etching, composite sol-coating, and high-temperature curing to obtain the target fiber. This invention employs dual modification through internal copolymerization and surface coating, resulting in a simple process suitable for industrial production. The obtained fiber can be used in aerospace, defense, and outdoor protection applications requiring long-term UV exposure.
Owner:CHONGQING YIHONG ENG PLASTICS CO LTD

Method for regenerating high-strength packaging carton by using waste carton

The invention relates to the technical field of papermaking, and discloses a method for regenerating a high-strength packaging carton by using a waste carton, which comprises the following steps: firstly, carrying out alkali treatment and washing on the waste carton, and then adding rare earth salt to carry out interface grading screening to obtain target fibers; then, mixing the target fiber with chitosan, phosphorylated polysaccharide ether, dihydroformylated carbohydrate, tannic acid and additional rare earth salt to prepare dynamic self-crosslinking bio-based slurry; then, performing temperature control treatment on the slurry at 45-50 DEG C so as to activate the configuration induction effect of the rare earth ions; and finally, dehydrating, hot-pressing and curing the slurry to obtain the recycled carton board. According to the invention, a dynamic self-crosslinking bio-based bonding system is constructed, dihydroformylated carbohydrate and chitosan in the system form an imine bond, phosphorylated polysaccharide ether forms a stable crosslinking network under hot pressing, and the composite structure endows the final paperboard with excellent moisture resistance.
Owner:SHANGHAI MINHANG RONGCHENG PAPER CO LTD

Method, device and medium for testing the strength of a fiberboard product

PendingCN122345519AFiberboardTarget fibers
The application discloses a kind of strength test methods, device and medium of fiberboard finished product, it is related to fiberboard test technical field, the method includes: after obtaining target fiberboard application scene parameter, standard test load is converted into working condition mapping loading mode, dynamic loading path is formed;Utilize path layout discrete multi-loading contact point, apply progressive load and introduce periodic micro-unloading disturbance;Collect structural response data, identify potential delamination diffusion trend;Combining maximum bearing value, stability analysis and delamination trend generate working condition consistency strength index.The application solves the technical problem that traditional fiberboard strength test method does not fully consider actual working condition parameters, leading to the disconnection of test results and actual use scene, achieves the technical effect that the strength index consistent with working condition is generated by simulating the load mode of real application scene, improves the matching degree and reliability of test results and actual application performance.
Owner:PIZHOU XINSHIJIE WOOD

Underwater robot real-time positioning method, system and terminal based on distributed optical fibers

The invention discloses an underwater robot real-time positioning method, system and terminal based on distributed optical fibers, and the method comprises the steps: laying a distributed optical fiber sensing network, and enabling fiber grating sensors to be disposed at different positions of the distributed optical fiber sensing network along the optical fibers; debugging and calibrating the fiber grating sensor to obtain a target fiber grating sensor; optical fiber physical changes caused by movement of the underwater robot are collected through a target optical fiber grating sensor, and a target electric signal is obtained; performing amplification, filtering and digital processing on the target electric signal to obtain time data when the underwater robot arrives at the target fiber grating sensor; according to the time data, the relative position of the underwater robot is calculated based on a time difference of arrival algorithm; and obtaining the absolute coordinate of the distributed optical fiber sensing network in the global coordinate system, and calculating the absolute position of the underwater robot according to the relative position and the absolute coordinate. According to the invention, high-precision positioning of the underwater robot is realized.
Owner:GUANGDONG LABORATORY OF SOUTHERN OCEAN SCIENCE AND ENGINEERING (GUANGZHOU)

Targeted recombinant adenovirus based on fiber protein substitution and nucleic acid molecules, methods of making and uses thereof

PendingCN122629061ATGE VACCINEMutagenesis
This invention relates to an shFiber5 nucleic acid molecule based on the miR-OE-EL backbone, which can efficiently interfere with the endogenous fiber gene of adenovirus and simultaneously co-express potentially targeted fibers, thus achieving effective replacement of functional fibers. This invention also provides a modified fiber, constructed by synonymously mutagenesis of the shRNA targeting sequence and insertion of a potential targeting peptide into the fiber variable region, resulting in a (Fiber-RP) molecule that is both shRNA interference resistant and targeted. shRes Nucleic acid molecules, as well as various fiber-modified nucleic acid molecules and recombinant adenoviruses. In this invention, there is no need for complex modification of the viral genome or repackaging of the virus; only the introduction of a knockdown-replacement plasmid (Fiber-RP) is required. shRes Viral amplification within -shFiber cells allows for targeted fiber replacement. The modified nucleic acid molecules or viruses can then be used as vectors or drugs, with wide applications in gene therapy, vaccine development, and cancer treatment.
Owner:AFFILIATED HOSPITAL OF GUANGDONG MEDICAL UNIV

A fiber bundle division method and system based on fiber similarity and a storage medium

The application provides a fiber bundle division method and system based on fiber similarity and a storage medium, and relates to the technical field of image processing; the method comprises the following steps: performing interval division on each fiber of a target fiber bundle, performing cluster point sampling on the fibers in each interval, calculating the similarity between the fibers based on the cluster points, generating an initial similarity matrix, performing hierarchical clustering on the fiber bundle based on the similarity matrix, generating a preliminary clustering result, calculating the similarity of fiber clusters between intervals based on the cluster points, generating a clustering similarity matrix, performing hierarchical clustering on the fiber clusters based on the clustering similarity matrix, and performing hierarchical clustering on the clustered result to generate a fiber clustering result of the target fiber bundle. The fiber bundle is clustered multiple times, so that the fibers in the clusters have tightness, and the clusters have separation degree, thereby improving the fiber bundle division precision and efficiency.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Bean product protein fiber diameter regulation and control method and system, electronic equipment and storage medium

The invention discloses a bean product protein fiber diameter regulation and control method and system, electronic equipment and a storage medium, and relates to the technical field of industrial process control. The method comprises the following steps: acquiring dielectric spectrum data of a material in an extruding machine in real time, and obtaining the rotating speed of a screw and the opening degree of a throttle valve; a viscosity estimation value is obtained based on the dielectric spectrum data, and transmission delay is calculated based on the rotating speed of a screw and the opening degree of a throttling valve; collecting a visual image of the extrudate, processing to obtain an average fiber diameter, performing time alignment on the viscosity estimation value and the average fiber diameter to obtain a data pair, calculating a deviation between the average fiber diameter and a target fiber diameter, and if an absolute value of the deviation is greater than a preset threshold value, calculating a feedback control quantity based on the data pair and a prediction model; and calculating a feedforward control quantity based on the viscosity estimation value, obtaining a control instruction in combination with a feedback control quantity, and adjusting the rotating speed of a screw rod and / or the opening degree of a throttle valve. According to the method, real-time and accurate regulation and control of the fiber diameter are realized, and the production efficiency is improved.
Owner:SUZHOU XINDOU TECHNOLOGY CO LTD

Lotus leaf extract functionalized lyocell fiber, and preparation method and application thereof

PendingCN122279776APolymer scienceSpinning
This invention discloses a functionalized lyocell fiber based on lotus leaf extract, its preparation method, and its application, belonging to the field of functional regenerated cellulose fiber technology. The method first prepares porous starch microcapsules from lotus leaf extract, then pre-treats cellulose pulp with enzymes, subsequently mixing it with N-methylmorpholine-N-oxide, sericin, and nano-zinc oxide to form a spinning solution. The solution is then spun using a dry-jet wet spinning method, coagulated, washed, and dried to obtain the target fiber, which can be further processed into an anti-inflammatory and repairing mask base fabric. This invention significantly improves the retention rate of active ingredients in lotus leaves through microcapsule encapsulation and low-temperature gentle spinning, achieving long-lasting sustained release. The resulting fiber possesses excellent mechanical properties, skin-friendliness, and anti-inflammatory and soothing effects, making it suitable for high-end mask base fabrics, medical dressings, and intimate textiles.
Owner:EAST CHINA UNIV OF SCI & TECH +1

Fiber distribution method and system of optical fiber distribution box based on home-to-home performance detection information

The invention relates to the technical field of optical fiber distribution, in particular to an optical fiber distribution box fiber distribution method and system based on home arrival performance detection information, and the method comprises the steps: judging whether lower layer home arrival sites exist or not, if yes, obtaining a home arrival site set and a home arrival transmission quality set, judging whether the lowest lower layer transmission quality belongs to a threshold value interval or not, and if yes, obtaining a home arrival site point set and a home arrival transmission quality set; if yes, taking the to-be-determined fiber splitting site as a first fiber splitting site, obtaining a first fiber splitting site sequence, carrying out site downward movement on the first fiber splitting site sequence to obtain an iterative fiber splitting site sequence, judging whether the lowest upper layer transmission quality belongs to a threshold value interval or not, and if not, taking the to-be-determined fiber splitting site as a second fiber splitting site; and if yes, updating the first fiber splitting site sequence by using the iterative fiber splitting site sequence to continue to perform site downward movement on the first fiber splitting site sequence, and if yes, selecting a target fiber splitting site sequence, and performing fiber splitting according to the target fiber splitting site sequence. The optical fiber distribution box can solve the problem that a current optical fiber distribution box is poor in site arrangement.
Owner:NINGBO ZHANTONG TELECOM EQUIP INDAL

A method for preparing multifunctional triporous fibers from recycled polyester

This invention relates to a method for preparing multifunctional triporous fibers from recycled polyester, belonging to the field of synthetic fiber technology. The invention first synthesizes a self-made flame retardant containing double bonds using DOPO as a base, then prepares quaternized vinyl imidazole-modified acrylate-based self-made antistatic particles. These two are then blended with recycled PET chips grafted with double-bonded monomers and an initiator, followed by melt spinning using a triangular spinneret to obtain the target fiber. The three-dimensional cross-linked network, the dispersion and toughening of functional particles, the rigid reinforcement of the flame retardant, and the formation of the triporous fiber synergistically enhance the fiber's mechanical properties. The polar groups of the flame retardant form ion pairs with the quaternary ammonium salt, effectively improving ionic conductivity and imparting good antistatic properties to the fiber. The charring and heat insulation of the flame retardant, combined with the gas-phase flame retardancy achieved by the antistatic particles releasing hydrogen halides to capture free radicals, synergistically achieve excellent flame retardant effects. The fiber prepared by this invention exhibits excellent mechanical properties, antistatic properties, and flame retardant properties.
Owner:江苏海科纤维有限公司 +1

Hybrid fiber model mechanical property simulation method and system and related equipment

The embodiment of the invention provides a mixed fiber model mechanical property simulation method and system and related equipment. The method comprises the steps that corresponding target-order tensor characterization parameters are determined according to target fiber orientation dispersion of a target area, and the target-order tensor characterization parameters comprise second-order tensor characterization parameters and / or fourth-order tensor characterization parameters; generating a target fiber phase sub constitutive model according to the target order tensor characterization parameter; generating a target mixed fiber model according to the target fiber phase sub constitutive model; and generating a target mechanical property simulation result according to the target mixed fiber model. In this way, under the condition that the simulation precision of the mechanical property of the mixed fiber model is guaranteed, the simulation efficiency can be improved, the simulation precision and the simulation efficiency are both considered, and the balance of the simulation precision and the simulation efficiency is improved.
Owner:HUNAN MAIXI SOFTWARE CO LTD

Power calibration method and device for fiber laser

The present application provides a power calibration method and device for a fiber laser, wherein the power calibration method for the fiber laser comprises: determining the maximum ideal output power of the target fiber laser, determining multiple ideal reference points according to the maximum ideal output power; selecting any one ideal reference point as the ideal reference point to be detected; detecting the output of the target fiber laser according to the power meter to obtain the actual output power; adjusting the output of the target fiber laser according to the actual output power and the ideal reference point to be detected, and executing the step of selecting any one of the ideal reference points as the ideal reference point to be detected until all the ideal reference points are selected to complete the calibration of the target fiber laser. Automatic power calibration of the laser is achieved, excessive deviation in power consistency is avoided, the linearity of the laser output power value is improved, the problem of large discreteness of power deviation in the laser is improved, the use process requirements of the laser are reduced, and the output power is predictable.
Owner:SICHUAN STRONGEST LASER TECH CO LTD

Multi-orientation microfiber 3D printing method and application

The application discloses a kind of multi-orientation microfiber 3D printing method, the target structure is sliced, and slice layer is obtained;Obtain the orientation of target fiber silk in each slice layer;Collect fiber silk, and the collected fiber silk is arranged side by side along the third direction;Each slice layer in target structure is printed on the printing platform layer by layer using the fiber silk arranged along the third direction;According to the orientation of target fiber silk in the slice layer being printed, adjust the direction of printing platform, so that the orientation of fiber silk arranged along the third direction is consistent with the orientation of target fiber silk in the slice layer being printed on the printing platform, and the fiber silk is transferred to the printing platform.The application provides a kind of multi-orientation microfiber 3D printing method, and the target structure of printing with greater thickness or height can be printed.
Owner:SUZHOU INST FOR ADVANCED STUDY USTC +1

Method, device and equipment for optimizing substrate structure of fiber grating sensor and medium

The invention discloses a substrate structure optimization method and device of a fiber grating sensor, equipment and a medium, and relates to the technical field of artificial intelligence, and the method comprises the steps: building a three-dimensional model comprising a fiber grating sensor substrate, configuring the three-dimensional model, and obtaining a target three-dimensional model; correcting the stress-life curve and the average stress to calculate the fatigue life of the base; establishing an orthogonal test scheme of each sensor based on the substrate structure parameter, the average stress and the substrate fatigue life of the target fiber grating sensor, performing modeling and finite element calculation on the orthogonal test scheme of each sensor to obtain corresponding average strain and substrate fatigue life values, and fitting a response surface model; and performing accuracy evaluation on the response surface model, if the evaluation is passed, performing multi-target optimization and iterative solution on the response surface model to obtain a Pareto solution, and screening out a target Pareto solution, so that the measurement precision and reliability of the hanging load sensor can be improved, drilling parameters can be accurately measured, and the service life of the sensor under harsh conditions is prolonged.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Antistatic dust suppression dye and application thereof to composite textile fabric

The invention discloses an antistatic dust suppression dye and an application thereof on a composite textile fabric, and relates to the technical field of fabric dyestuff, the dye is composed of the following components: all the components are connected with a dye skeleton part through a covalent grafting or chemical copolymerization mode: the dye skeleton is a coloring group suitable for a target fiber; the reactive anchor group is covalently bonded with hydroxyl or amido on the fiber in the dyeing or after-finishing process; the conductive ion conduction chain segment forms an electronic or ionic conductive ion path on the surface of the fiber; a surface energy regulation chain segment is used for regulating the hydrophilicity and micro-adhesion of the surface of the fiber; the cross-linkable film-forming immobilization section forms a cross-linked network and an optional microencapsulation component through light or heat curing after being dyed. Through dye molecule-level function integration, synchronous fixation of colors and functions is realized, the problem that functional components fall off after being washed with water is solved, and long-term stable antistatic and dust suppression effects are realized.
Owner:NANTONG CHUANGWEI LUN TEXTILE TECH CO LTD

A composite material automatic fiber placement path dynamic optimization method, device and medium

The application discloses a composite automatic fiber placement path dynamic optimization method, device and medium, and belongs to the technical field of composite automatic fiber placement. The method comprises the following steps: obtaining a three-dimensional model of a component to be laid, and obtaining surface curvature distribution characteristics and fiber laying angle constraints based on the three-dimensional model; processing the surface curvature distribution characteristics based on a path planning algorithm to generate an initial fiber placement path; driving a fiber placement head to perform reverse pre-tension control based on a tension mapping table and a temperature compensation coefficient; obtaining actual fiber orientation data according to a preset sampling period based on a polarized laser polariscope, and extracting fiber angle deviations of the actual fiber orientation data; processing the fiber angle deviations and resin viscoelasticity data based on a Bayesian optimization algorithm to dynamically correct the laying path and generate an update instruction; and adjusting the spatial pose and tension of the fiber placement head according to the update instruction. The application realizes dynamic multi-target fiber placement path optimization and real-time feedback control based on the above method.
Owner:SHENYANG HIGHLY INTELLIGENT TECH CO LTD

Steel plate-fiber-reinforced plastic composites, and automotive components

To provide a steel fiber reinforced plastic composite that improves mechanical properties and reduces the volume of carbon fiber reinforced plastic (CFRP). [Solution] A steel plate fiber-reinforced plastic composite comprising a steel plate and a rib-shaped fiber-reinforced plastic laminate having a smaller area than the steel plate, wherein the fiber-reinforced plastic laminate is made up of alternating layers of fiber-reinforced plastic containing CFRP and fibers other than carbon fiber, and the volume of CFRP is 70% or less and the maximum bending stiffness is 80% or more compared to the target composite. The target composite comprises a target steel plate and a target fiber-reinforced plastic laminate having the same area as the target steel plate and consisting only of CFRP, wherein the target steel plate is made of the same material, has the same area and the same thickness as the steel plate, and the CFRP in the target fiber-reinforced plastic laminate is made of the same material as the CFRP in the steel plate fiber-reinforced plastic composite and has a thickness of 1.0 mm.
Owner:NIPPON STEEL CORPORATION

Method, apparatus, and device for planning multi-fiber laser ablation treatment of brain gliomas

The application relates to a multi-fiber laser ablation treatment brain glioma planning method, device and equipment. The method comprises the following steps: according to pre-acquired image information and segmentation results of a tumor region of a target patient, sequentially performing segmentation sampling processing on the image information to obtain a candidate fiber path set; according to a fiber planning objective function and a fiber planning constraint condition, performing screening processing on the candidate fiber path set to obtain an intermediate fiber path set, and determining the number of fibers required for tumor ablation according to the intermediate fiber path set; and according to the number of fibers required for tumor ablation and a pre-determined path evaluation score, determining a target fiber path set from the intermediate fiber path set; and the target fiber path set at least comprises position information corresponding to each target fiber path. The method can improve the tumor ablation rate and reduce the use of fibers.
Owner:TSINGHUA UNIVERSITY