145 results about "Fiber type" patented technology

Methods and systems for fiber identification include emitting a pump pulse on a fiber using a transponder. A Brillouin gain spectrum of reflected radiation from the pump pulse is measured using the transponder. A fiber type is determined corresponding to the Brillouin gain spectrum.

The invention relates to the technical field of compressive strength prediction of desert sand hybrid fiber cement-based composite materials, in particular to a 28d strength prediction method of a desert sand hybrid fiber cement-based composite material, which comprises the following steps: performing formula fitting on compressive strength at different ages; the function expression between the compressive strength and the number of maintenance days is # imgabs0 #, T is the number of maintenance days, and sigma c is the compressive strength of the corresponding age; a < lambda > and b < lambda > are regression coefficients considering the influence of fiber types and relative mixing amounts, the influence of fiber influence factors on a < lambda > and b < lambda > is considered, a fitting formula of sigma < c > about the fiber influence factor < lambda > and the curing age T is obtained, and lambda and T = 28 are substituted into a prediction formula # imgabs1 #, so that the 28d compressive strength of the desert sand hybrid fiber cement-based composite material can be determined. The prediction method is feasible and effective, and can accurately and quickly predict the 28d compressive strength of the desert sand hybrid fiber cement-based composite material, so that the detection period is shortened.

The invention provides an embedded hybrid fiber threaded rib and a manufacturing method thereof.The embedded hybrid fiber threaded rib comprises a core axial fiber bundle, a surface layer structure fiber bundle formed through curing is arranged on the outer side of the core axial fiber bundle, at least one spiral indentation groove is formed in the outer side of the surface layer structure fiber bundle, and the surface layer structure fiber bundle is arranged in the indentation groove. A spiral additional rib fiber bundle is fixedly arranged in the indentation groove along the indentation groove; according to the embedded hybrid fiber threaded rib, a hybrid fiber scheme is adopted, according to performance requirements, the core axial fiber bundles, the surface layer structure fiber bundles, the indentation grooves and other components in the rib material adopt different fiber types, the performance characteristics of different fibers are fully exerted, and the comprehensive performance of the rib material is improved.

The invention discloses a fiber-type sensor with adjustable strain sensitivity and sensing range and a preparation method thereof. The fiber-type sensor realizes strain resistance response of basic sensitivity through bulk resistance change caused by cross sectional area change of a conductive material layer when the fiber-type sensor is stretched and an expansion effect of microcracks on the surface of the conductive material layer. The preparation method of the fiber type sensor comprises the following steps: extruding a thermoplastic polyurethane organic solution into a water bath by using an injector to obtain a phase separation porous core fiber 1; immersing the core fiber into an organic solution containing a thermoplastic polyurethane and carbon nanotube mixture, taking out the core fiber, and transferring the core fiber to a non-woven fabric substrate; the substrate and the coated core fiber on the substrate are integrally placed in a water bath and then taken out, and the sensing fiber is obtained after the fiber is stripped; a metal foil packaging layer or a polymer packaging layer is used for wrapping fibers in a segmented mode, and the fibers are pre-stretched to form the fiber type sensor with sensing efficiency.

Plied yarns and methods of constructing plied yarns from two different yarns, manufactured using different fibers wherein the plied yarns possess enhanced properties. The yarns developed and described herein are plied yarns, rather than, and in direct contrast to intimately blended yarns. Examples of the fibers and / or yarns utilized in forming the yarns of different fibers described herein, include but are not limited to 100% cotton, Modal, and Lyocell. The yarns described herein can be used for various end uses, including but not limited to formation of terry fabric for use in towels, robes, apparel, and the like.

The invention discloses an exosome extraction method based on plant juice characteristics. The method comprises the following steps: firstly, according to the characteristics of plant juice, dividing samples into four types, namely a clear low-viscosity type sample, a medium-thick type sample, a high-viscosity type sample and a high-fiber type sample, and adopting different pretreatment modes: washing the clear type sample, cutting into blocks, and directly juicing; performing enzymolysis after medium-concentration washing and juicing; performing enzymolysis after high-viscosity homogenate juicing; and the high-fiber type is firstly subjected to enzymolysis and softening, and then homogenate and squeeze juice. Removing impurities through two-step differential centrifugation, and finally obtaining the high-purity exosome through ultrafiltration concentration, PEG precipitation, PBS resuspension and filtration. According to the method disclosed by the invention, various means such as physical crushing, enzymolysis, differential centrifugation, ultrafiltration and precipitation are comprehensively utilized, so that the yield and purity of the exosome are greatly improved, the varieties of plants for preparing the exosome are widened, and a technical support is provided for application research of the plant exosome.

The invention provides a fiber type polyionic liquid catalyst and a preparation method and application thereof, the fiber type polyionic liquid catalyst is prepared by spinning a precursor solution, and the precursor solution is prepared by dissolving an ionic liquid monomer, an initiator, a cross-linking agent and a polymer raw material in a solvent and mixing. A specific precursor solution is spun to obtain a polyion liquid catalyst with a fiber structure and high porosity, and the polyion liquid catalyst has a microporous network, can enhance gas and mass transport, enables catalytic active sites to be effectively exposed, and can catalyze CO2 cycloaddition to generate cyclic carbonate under the mild conditions of no metal, no catalyst promoter and no solvent; and the catalyst has high catalytic activity and good cycle performance. The fiber type polyion liquid catalyst has processability, can still keep high catalytic activity after continuously catalyzing CO2 cycloaddition reaction for 1000 hours in micro continuous flow reactors (such as fixed beds) and the like, and has a wide industrial application prospect.

The invention discloses a hybrid fiber reinforced geopolymer concrete dynamic growth factor prediction method and system, and relates to the technical field of composite materials, and the method comprises the steps: obtaining an initial peak stress growth factor based on the ratio of dynamic peak stress to quasi-static peak stress under a given strain rate; based on the ratio of the dynamic elastic modulus to the static elastic modulus, obtaining a dynamic increasing coefficient of the elastic modulus of the concrete; under the condition that the size of the static compression test piece is consistent with the size of the dynamic compression test piece, analyzing the influence of a fiber combination mode, a fiber type, a fiber mixing amount and a strain rate on the dynamic performance of the test piece; introducing fiber characteristic parameters to carry out secondary fitting on the initial peak stress growth factor to obtain a corrected peak stress growth factor; and fitting the dynamic increase coefficient of the elastic modulus of the concrete through a linear function to obtain a corrected elastic modulus increase factor and a critical strain rate. According to the method, the dynamic growth factor of the hybrid fiber reinforced geopolymer concrete can be accurately predicted, so that the impact resistance of the material is obtained.

The invention relates to the technical field of detection devices, and discloses a textile fiber component detection device and method, and the device comprises an optical detector which is used for imaging and photographing the surface of textile cloth. When a first magnetic ring is attracted by the magnetic force of a second magnetic ring, textile cloth can be tightly pressed on the upper surfaces of a first arc block and a second arc block, friction force is generated between the textile cloth and the first arc block and friction force is generated between the textile cloth and the second arc block, and when the first arc block and the second arc block move in the direction away from the second magnetic ring, the textile cloth is fixed. Through the arrangement, when the textile cloth is straightened and flattened, the tensile force on the surface of the textile cloth is more uniform, bending wrinkles caused by uneven tensile force on the local surface of the textile cloth are avoided, and it is ensured that under detection of an optical detection lens, fiber types or surface characteristics of the textile cloth are clear; the accuracy of a detection result is ensured.

The invention discloses a PXYLP1 gene molecular marker combination related to the ratio of muscle fiber types in chicken leg muscles and its application in broiler genetic breeding, belonging to the fields of poultry genetic breeding and biotechnology. The molecular marker combination includes PXYLP1-SNP1 and PXYLP1-SNP2, which correspond to the 6475388th and 6478235th sites of chromosome 9 of the chicken reference genome bGalGal1.mat.broiler.GRCg7b version published by the Ensembl database, respectively, both of which are located in the second intron of the PXYLP1 gene, and the mutation types are T>C and A>G, respectively, and the corresponding registration numbers in the dbSNP database are rs739533409 and rs737019788. The molecular marker combination and the detection primer can be used to establish a molecular marker-assisted selection technology for the trait of the muscle fiber type ratio of broilers. By detecting the molecular marker combination in a breeding population, a chicken population with a higher red muscle fiber ratio in the leg muscle can be bred in a directional manner, thereby improving the meat quality of the variety and increasing the economic value of the variety.

The invention relates to the technical field of textile fiber component analysis, and discloses a textile fiber component qualitative online analysis system and method.The system comprises a spectrum collection module, a data processing terminal and a component recognition center, and the component recognition center comprises a spectrum preprocessing unit, a feature matching unit and a component judgment unit. The spectrum acquisition module acquires multi-band spectrum data of a textile sample in real time, and the data processing terminal receives an instruction to perform spectrum data format conversion. The spectrum preprocessing unit determines an interference section by recording spectrum distortion and a baseline correction interval, and controls the processing terminal to generate a spectrum characteristic matrix to calibrate component distribution on the surface of a sample; a feature matching unit generates a component report according to matched fiber types; when the component determination unit detects an abnormal spectrum, re-measurement is controlled in an interference section. The system realizes online real-time qualitative analysis of the textile fiber components, enhances the anti-interference capability, and can be widely applied to the field of textile fiber component analysis.

The invention provides an intelligent composite material reinforcement and a preparation method thereof, and the preparation method comprises the following steps: respectively using optical fibers and fiber yarns as weaving yarns, introducing the weaving yarns into a weaving machine according to a preset arrangement path, and weaving according to the molding process requirements of corresponding layer connection tissues, the construction of the intelligent composite material reinforcement is realized by independently controlling the introduction path of the optical fiber along the preset direction; wherein the preset direction comprises one or more of the warp direction, the weft direction or the thickness direction of the intelligent composite material reinforcement. According to the invention, the optical fiber is introduced into the intelligent composite material reinforcement body under the condition that the optical fiber is not damaged, and the distribution of the optical fiber in the intelligent composite material reinforcement body can be regulated and controlled by adjusting the introduction direction, the number and the bending angle of the optical fiber; and the method has the advantages of various organization structures, various fiber types, large reinforcement size and density control range, strong designability, good integrity, convenient operation in the weaving process and the like.

The invention discloses a tight gas fiber sand fracturing optimization design method and system, and the method comprises the steps: employing a numerical simulation technology, taking the reservoir transformation volume and the crack complexity as optimization targets, and carrying out the optimization to obtain fracturing construction parameters; under the optimized fracturing construction parameters, indoor experiments are carried out, and the fiber type, the use amount, the pump injection mode and the like which have the minimum influence on the backflow capacity of a proppant filling layer and have the optimal sand prevention effect are determined, so that the whole process of tight gas fiber sand fracturing is optimized, the sand production rate is effectively reduced, the backflow capacity of a crack is guaranteed, and the fracturing efficiency is improved. And the reservoir transformation effect is improved to the maximum extent, the yield is increased, and the cost is reduced.

The application discloses a kind of hybrid fiber reinforced geopolymer concrete creep test method and system, it is related to hybrid fiber reinforced geopolymer concrete technical field, preparation different fiber species creep test piece;Different loading conditions are set, and the compression creep test is carried out to the creep test piece;In the compression creep test process, the creep data of each creep test piece is collected, and the creep data is handled;Based on the creep data after processing, the creep performance of hybrid fiber reinforced geopolymer concrete is evaluated.The application focuses on the creep behavior of GPC and HFGPC under long-term compression load.By analyzing the influence of fiber type, axial stress ratio and confining pressure level on creep characteristics, the deformation law of fiber reinforced composite materials under long-term service condition is revealed, which provides a theoretical basis for the engineering application of HFGPC and a reference for the prediction of its creep coefficient.

This invention discloses an improved drafting device for a roving frame, comprising a frame, a fixed roller, a movable roller, an adjusting assembly, and a transmission assembly. The adjusting assembly forms a closed-loop system with a pressure sensor, a hydraulic cylinder, and a controller, employing a PID algorithm to achieve precise control of the pressure between the rollers. The transmission assembly utilizes a spiral bevel gear pair combined with a prism-perforated and progressive spring structure to ensure stable transmission during the lifting and lowering of the movable roller. The device also features adaptive PID parameter adjustment, automatically optimizing control parameters according to fiber type. Compared with traditional technologies, this invention offers higher pressure control accuracy, effectively improving production efficiency and intelligence, while reducing energy consumption and maintenance costs.

The invention discloses an assembly method of a suspension fiber type OIS motor and the suspension fiber type OIS motor, and the assembly method comprises the following steps: enabling a positioning hole of a material belt to sleeve a positioning column of a base, so as to enable a first suspension fiber hole and a second suspension fiber hole to be concentrically arranged; the first end of the suspension fiber is fixed to the first suspension fiber hole, and the second end of the suspension fiber is fixed to the second suspension fiber hole; the material belt is cut, and the second elastic connecting piece and the positioning column are in a disconnected state; and the material belt arranged on the positioning column in a sleeving mode is removed. The suspension fiber threading device has the technical effects that the suspension fiber threading efficiency is improved, and the poor performance caused by the suspension fiber threading problem can be solved.

The optical fiber type light spot homogenizer comprises a machine frame, a laser source is arranged at one end of the machine frame, a multimode optical fiber corresponding to the laser source is arranged at the other end of the machine frame, the laser source emits a laser beam, the multimode optical fiber receives the laser beam, and the multimode optical fiber is connected with the machine frame. The multi-mode fiber laser is characterized in that the relative refractive index difference section of the inner side of the sunken inner cladding of the multi-mode fiber is in a two-stage step decreasing shape, and the center line of the laser beam and the center of the end face of the multi-mode fiber are aligned and offset in parallel by a section of radial offset. The device is small in size, low in cost, compact in structure, good in homogenization effect and stable in performance, and can be directly seamlessly integrated with an input laser source and an output optical fiber system. The optical fiber type light spot homogenizer assembly and the laser beam shaping system can achieve efficient light spot homogenization within the centimeter-level distance. The system can be applied to a vehicle-mounted laser radar, a vehicle-mounted head-up display, a multimode PON optical splitter, laser medical equipment or laser material processing equipment and the like.

This invention discloses a modified fiber-reinforced composite high-permeability concrete and its preparation method in the field of concrete technology. The concrete comprises the following components: silicate cement, fly ash, coarse aggregate, composite fiber, waterborne polyurethane emulsion, activated biochar, water-reducing agent, composite bacterial solution, photocatalyst, and water. By adding modified polypropylene fiber, modified carbon fiber, waterborne polyurethane emulsion, and activated biochar to the concrete raw materials, this invention enhances the mechanical properties of the concrete, improving its stability, compressive strength, and crack resistance. It also increases the void structure of the concrete, further improving its permeability. Simultaneously, the addition of microbial solution and photocatalyst enhances the self-healing and self-cleaning capabilities of the concrete.

The present invention provides a microporous core-sheath fiber type flexible strain sensor, comprising a microporous structure fiber as a core structure and a rubber layer as a sheath structure, wherein the rubber layer is coated on the periphery of the microporous structure fiber, wherein the microporous structure fiber has a porous base fiber, and the porous base fiber surface has a composite conductive network layer, wherein the composite conductive network layer is a carbon nanotube conductive layer having conductive nanowires. The sensor of the present invention has a wide deformation capacity, a detection range and lightweight characteristics, can ensure a continuous conductive path under large strain, and has good elongation, toughness and sensitivity.

The present invention discloses a reinforcement-soil interface friction characteristic test device and test method, the device comprises a fiber-soil model box, a portable fiber fixing device, a test platform body, a water drop loading device, a traction pulley device, a horizontal observation device, a test platform leveling device, a vertical loading device, a laser displacement sensor and a computer. The present invention obtains the shear stress-strain relationship between the fiber and soil interface under different loads by adjusting the size of the overlying load, thereby obtaining the test parameters such as the shear strength, interface cohesion, internal friction angle, shear displacement, etc. of the interface, and can realize the study of the effect and mechanism of the influence of parameters such as different soil qualities and different fiber types on the test by changing the soil type, soil properties, fiber type, etc., especially for the test study of the friction characteristics of the reinforcement-soil interface of fiber-reinforced soil, revealing the laws of stress and deformation of the reinforcement-soil interface.

To provide a thermal insulation material that can improve workability of installation of the thermal insulation material including a moisture-proof sheet.SOLUTION: A thermal insulation material comprises a fiber type thermal insulation material, a moisture-proof sheet attached on one principal surface of the aforesaid fiber type insulation material, and a moisture-permeable sheet attached on the other principal surface opposite to the aforesaid first principal surface with the aforesaid fiber type thermal insulation material between them. The aforesaid fiber type thermal insulation material and the aforesaid moisture-proof sheet are not bonded.SELECTED DRAWING: Figure 2

The invention relates to the technical field of aerogel material preparation, and discloses functional clay-based aerogel and a preparation method thereof.The preparation method comprises the following steps that 1, clay, organic powder, artificial fibers and water are evenly mixed according to a proper proportion, and a uniform clay-based mixture is obtained; step 2, extruding the clay-based mixture by double rollers for multiple times to obtain a clay sheet; and step 3, carrying out puffing treatment on the clay slices to obtain the functional clay-based aerogel. A three-dimensional network framework of the aerogel is constructed by taking the fiber type clay as a main material and taking a small amount of glass fiber as an auxiliary material, so that the mechanical property of the aerogel is improved; starch is used as a puffing reinforcing agent, so that the density of the aerogel is remarkably reduced, and light heat insulation and flame retardance are realized; a catalyst is loaded in situ by a one-step method, so that the functionalization of the aerogel is realized.

The invention discloses a novel tail fiber type circulator and a packaging method thereof. The novel tail fiber type circulator comprises a first tail fiber collimator, a second tail fiber collimator, a third tail fiber collimator, a free space circulator core, a reflecting prism and a tube shell, a first port and a second port are vertically formed in one end of the tube shell, and a third port is formed in the other end of the tube shell; the first tail fiber collimator is inserted into the first port, the second tail fiber collimator is inserted into the second port, and the third tail fiber collimator is inserted into the third port; the reflecting prism and the free space circulator core are respectively arranged at the middle part in the tube shell up and down; the first tail fiber collimator, the reflecting prism, the free space circulator core and the second tail fiber collimator are sequentially coupled; the second tail fiber collimator, the free space circulator core and the third tail fiber collimator are sequentially coupled; the novel tail fiber type circulator is simple in optical path and compact in structure, the space in the tube shell is fully utilized, miniaturization packaging is achieved, and the size of the tail fiber type circulator is reduced.

The application provides a winding core spinning device based on a calculus principle and a method and application thereof. The device is provided with a negative pressure air suction port on a special-shaped plate, and a corresponding negative pressure airflow guide assembly is arranged above the negative pressure air suction port. Under the mutual cooperation of the diffusion flow guide hole and the negative pressure air suction mechanism, the spread fiber type short fibers with a certain width and uniformly distributed fiber height parallelism are obtained on the grid ring. Meanwhile, the short fiber sliver, core yarn and winding core yarn form a "y" shape structure in the winding core wrapping area. The core yarn self-rotation drives the short fiber sliver to be tightly wrapped and wound to the outer layer of the core yarn in the winding core wrapping area to form the winding core yarn. Then, the winding core yarn passes through the soft reinforcing winding core part, so that the wrapping layer is tightly attached to the yarn body under the action of temperature and pressure to form a good wrapping effect. The winding core yarn has a compact yarn body and a large core yarn proportion, solves the problems of small wrapping tightness, many wrapping exposed cores and low core yarn proportion of the core-spun yarn on the ring spinning machine, and greatly improves the yarn quality.

The present invention discloses an environmentally friendly impregnation system for fiber surface treatment, a preparation method thereof and an impregnation treatment method. The environmentally friendly impregnation system for fiber surface treatment of the present invention comprises hydroxy acrylic resin, amino resin, epoxy resin, blocked isocyanate, accelerator, rubber latex and deionized water. The present invention can select single-bath impregnation treatment or double-bath impregnation treatment according to different fiber types and uses. The present invention can effectively replace the use of toxic raw materials and intermediates in traditional RFL dipping systems, reduce harm to human body and environment, and achieve the bonding effect of RFL.

The invention discloses a hollow fiber type Janus membrane based on diffusion interfacial polymerization as well as a preparation method and application of the hollow fiber type Janus membrane, and belongs to the technical field of membrane separation. A diffusion device composed of a membrane assembly, a water phase system, an organic phase system, a pressure control system and an online temperature control system is designed, a water phase solution containing amine monomers and an organic phase solution containing acyl chloride monomers are prepared at the same time, and a hollow fiber hydrophobic membrane is fixed in a middle channel of the diffusion device; a water-phase solution heated by the temperature controller is introduced into a cavity of the middle channel through a first water pump, an organic-phase solution is introduced into the hollow fiber hydrophobic membrane through a second water pump, the water-phase solution and the organic-phase solution infiltrate the outer surface and the inner surface of the hollow fiber hydrophobic membrane respectively for diffusion interfacial polymerization reaction, and a polymer active separation layer is formed; and performing drying treatment to obtain the hollow fiber type Janus membrane. The hollow fiber type Janus membrane disclosed by the invention has excellent anti-pollution and anti-wetting properties.

The invention discloses an intelligent detection method, system and device for textile fiber components and a storage medium, and the method comprises the steps: extracting contour features based on a cross section image under the condition that the cross section image and Raman spectrum data of a to-be-detected textile are obtained; extracting spectrum sequence features based on the Raman spectrum data; according to the contour features and the spectral sequence features, determining a fiber classification result of the to-be-detected textile and a corresponding confidence threshold thereof through a trained fiber classification model; under the condition that the corresponding confidence threshold value is larger than a preset threshold value, the structure characteristic value of each fiber in the cross section image in the fiber classification result is determined, and the structure characteristic value comprises the average cross section area, the volume density and the number of the fibers; and the mass percentage content of each fiber in the fiber classification result is calculated according to the structure characteristic value, so that the efficiency and the accuracy of fiber type and mass percentage content detection are greatly improved.

The invention discloses a synthetic microbial flora for improving pork quality and application thereof. The synthetic microbial flora comprises two kinds of probiotics, namely lactobacillus plantarum WY2401 with the preservation number of CCTCC (China Center For Type Culture Collection) NO. The invention relates to ackermann muciniophilic bacteria. The synthetic microbial flora is prepared by compounding lactobacillus plantarum and ackermann mucophile according to a colony formation unit number ratio of 1: 1, concentrating and freeze-drying. Experimental results show that the synthetic microbial flora is added into the basic feed of the fattening pigs, so that the carcass traits are improved, the intramuscular fat content is increased, the conversion of muscle fiber types and the development of muscle fibers are promoted, and the meat quality is improved.

One or more aspects of the disclosure provides a nonwoven fabric comprising a single layer in which the single fabric layer comprises a plurality of different fibers in which each fiber type has desired functionality. In one aspect, a system for preparing a nonwoven fabric having a single fabric layer in which the single fabric layer comprises a plurality of different fiber types, is provided. The system includes a spin beam having a zoned distribution plate disposed upstream of a spinneret, the zoned distribution plate includes a plurality of distribution apertures arranged in zones, wherein each zone is configured and arranged to extrude a plurality of polymer streams that are of a different polymer type than polymer streams extruded by an adjacent zone to the spinneret to form a single layer having two or more types of fibers that are of a different type from each other.

The invention relates to the technical field of image recognition, in particular to a block comparison-based textile fiber classification method, which comprises the following steps of: performing matrix segmentation on a collected fiber photo to obtain a plurality of primary patterns; then identifying a first fiber texture feature corresponding to each first-level pattern; respectively calculating right and interest values of the first fiber texture feature and the corresponding similar fiber feature in the secondary pattern sampling area; and classifying the textile fibers in the fiber photo into a fiber type with the maximum right and interest value. According to the textile fiber classification method based on block comparison, first-level pattern texture features are extracted through matrix block, precise capture of a fiber local structure is achieved in combination with second-level dynamic sampling area analysis, and the misjudgment rate is remarkably reduced; secondly, a hierarchical feature processing strategy is adopted, a key area is rapidly screened through a first-level pattern, then a second-level area right value is calculated in a targeted mode, global redundant calculation is avoided, and the processing speed is increased.