338 results about "Fibre content" patented technology

The invention discloses a high-strength short fiber carbon ceramic brake disc and a preparation method thereof, and the preparation method comprises the following steps: carrying out ball milling on silicon powder and carbon powder, mixing with thermosetting resin powder and thermoplastic resin powder, uniformly mixing carbon fiber and a coupling agent, adding the mixed powder, and uniformly mixing again. According to the short fiber carbon ceramic brake disc provided by the invention, the ball-milled silicon powder and carbon powder are uniformly dispersed in the matrix, meanwhile, the thermoplastic resin with good fluidity is added to form a network structure in the matrix, through holes are formed after carbonization, and the high-strength short fiber carbon ceramic brake disc is obtained. Silicon steam can enter in the ceramization process, and the problem that the carbon-ceramic composite material which is high in fiber content and large in thickness and formed at high temperature and high pressure is difficult to infiltrate can be effectively solved. The carbon-ceramic short fiber brake disc prepared by the method is low in aperture ratio and high in impact strength.

The invention discloses a textile fabric polyester fiber detection method based on spectral imaging and curve fitting, and relates to the technical field of hyperspectral imaging analysis, and the method comprises the steps: carrying out the characteristic decomposition and principal component analysis of a reflectivity function after baseline correction, and obtaining a characteristic curve; extracting feature information of the hyperspectral image, and fusing the feature information of the hyperspectral image with the feature curve to generate a multi-dimensional feature vector; and constructing a hyperspectral fiber content detection model, inputting the multi-dimensional feature vector and the feature parameter vector into the hyperspectral fiber content detection model, and generating the polyester fiber content. Not only are the problems of background noise and drift interference solved, but also the multi-dimensional characteristics of the hyperspectral data are fully mined. The content of the polyester fibers in the waste textile fabrics can be efficiently detected on line. Finally, according to the method, the detection precision and reliability are remarkably improved, and an efficient, environment-friendly and accurate technical means is provided for resource utilization of the waste textile fabrics.

The invention belongs to the technical field of fiber reinforced composite material additive manufacturing, and discloses a continuous fiber composite material 3D printer tail end heating extrusion device. Aiming at the problems of poor fiber impregnation degree of a resin matrix, low process flexibility of a mode of directly printing pre-impregnated composite filaments and incapability of changing the fiber content in a composite material structure by adjusting process parameters in real time in an in-situ impregnation printing mode, the invention designs an in-situ impregnation printing method capable of ensuring the printing process flexibility and improving the printing efficiency. According to the tail end heating extrusion device, the continuous fiber reinforced composite material structure can be formed in a high-quality mode, the fiber impregnation degree can be remarkably improved, and the structure of a printing nozzle is optimally designed. Through the structural design of the internal channel and the outlet nozzle of the tail end heating device, the impregnation effect of a resin matrix on continuous fibers can be improved, scraping of the nozzle on the continuous fibers is relieved, and the quality of a printing component can be effectively improved.

The invention discloses application of a gene FTO in improvement of forage grass quality, yield and stress resistance. According to the invention, the FTO gene is subjected to codon optimization according to the metatropism of alfalfa and is overexpressed in alfalfa to obtain a transgenic alfalfa plant overexpressed with the FTO gene, and compared with wild alfalfa, the transgenic alfalfa plant overexpressed with the FTO gene has the advantages that the growth performance is enhanced; the crude protein content, the soluble carbohydrate content and the in-vitro dry matter digestibility are obviously higher than those of the wild type; the crude fiber content, the acid detergent fiber content, the neutral detergent fiber content and the lignin content of the transgenic alfalfa plant are obviously lower than those of a wild type; in addition, the drought resistance and salt stress resistance of the transgenic alfalfa plant are also obviously enhanced, which indicates that the FTO gene has the functions of improving forage grass quality, resisting stress or positively regulating plant growth. The method has application prospects in the aspects of improving forage grass quality and stress resistance or promoting plant growth and the like.

The invention relates to the technical field of microorganisms, and particularly discloses a fermentation method of bifidobacterium longum BBMN68 as well as a fermented product, a postbiotic and application of the fermented product. According to the method for fermenting the bifidobacterium longum BBMN68, a fermentation substrate comprises alkaline protease hydrolyzed milk and a pomelo peel extract; the hydrolysis rate of the alkaline protease hydrolyzed milk is 9-11%, and the water-soluble dietary fiber content of the shaddock peel extract is 75-80%; the mass ratio of the alkaline protease hydrolyzed milk to the shaddock peel extract is (10-15): (1-3). The content of active ingredients in the fermented product prepared by the method is high, and after the fermented product is prepared into the postbiotics to be taken, the immune function of an organism can be recovered, immune organ damage is reduced, inflammation is relieved, and intestinal flora is regulated and controlled.

The invention belongs to the technical field of functional fibers, and relates to colored multi-groove type regenerated polyester staple fibers and a preparation method thereof. The preparation method comprises the following steps: carrying out melt blending on the regenerated polyester and the color master batch, and spinning by a multi-groove spinneret plate to obtain the colored multi-groove regenerated polyester staple fiber. The cross section of the fiber is of a multi-groove structure, the linear density of the fiber is 3.33-11.11 dtex, the linear density deviation rate is-8%-8%, the breaking strength of the fiber is 3.3-4.5 cN / dtex, the elongation at break is 28.2-43.5%, the content of super-long fibers is 0-3 mg / 100 g, the defect content is 5-50 mg / 100 g, the crimp number is 9-13 / 25 mm, the crimp rate is 10%-16%, the fiber forming degree is larger than or equal to 85%, and the color fastness is larger than or equal to 4. The colored multi-groove type regenerated polyester staple fiber prepared by the method has good mechanical properties, color fastness and forming degree, ensures the quality of regenerated polyester, realizes efficient regeneration and utilization of waste polyester, can be applied to preparation of various clothing products, and has good development prospects.

The invention belongs to the technical field of preparation of bio-based functional fibers, and relates to a preparation method of high-shrinkage polyethylene furandicarboxylate fibers. The preparation method comprises the following steps: drying the polyethylene furandicarboxylate slices, and carrying out melt blending spinning to obtain the high-shrinkage polyethylene furandicarboxylate fiber. The linear density of the fiber is 2.22-4.44 dtex, and the linear density deviation ratio is-5%-5%. The breaking strength of the fiber is 3.5-4.5 cN / dtex, the elongation at break is 53.5-68.5%, the content of super-long fibers is 0-3 mg / 100 g, the defect content is 3-20 mg / 100 g, the crimp number is 12-15 / 25 mm, the crimp rate is 14-18%, and the boiling water shrinkage rate is 60-80%. The prepared high-shrinkage polyethylene furandicarboxylate fiber is a 100% high-shrinkage polyester fiber, the performance of the fiber is far superior to that of a conventional high-shrinkage fiber, and the high-shrinkage polyethylene furandicarboxylate fiber can become a substitute product of PET.

The invention discloses a bacillus capable of efficiently degrading fibers and application of the bacillus. The name of the bacillus altitudinis DF34 is bacillus altitudinis, the preservation number of the bacillus altitudinis is GDMCC No: 65492, and the bacillus altitudinis is preserved in Guangdong Microbial Culture Collection Center on December 4, 2024. The bacillus has the characteristics of strong stress resistance and high growth speed; the strain has the capability of efficiently degrading fibers, and can degrade fiber components of forage grass, promote fermentation and improve the fermentation quality of the forage grass with low soluble sugar water content in the ensiling process. Therefore, the bacillus altitudinis DF34 can be widely applied to various regions in China, and especially has an outstanding effect on silage raw materials with high fiber content. The strain successfully solves the problem of poor silage fermentation caused by low water-soluble carbohydrate content, and provides a new solution for improving the quality of the silage.

The invention relates to the technical field of additive manufacturing, and discloses a 3D printing continuous fiber reinforced composite material path planning method based on the absolute maximum principal stress direction, and the method comprises the steps: building a three-dimensional model of a to-be-formed structural member, carrying out the slicing processing of the three-dimensional model, and obtaining a two-dimensional model of the to-be-formed structural member and the geometric characteristics of the two-dimensional model; material parameters and load constraints are set for a to-be-formed structural part needing additive manufacturing according to the requirements of forming materials and structural working conditions, finite element simulation is carried out, and a finite element simulation calculation result of a unit is exported; on the basis of a finite element simulation calculation result, an original contour line based on the stress direction is obtained through calculation; and on the basis of the calculated contour line in the stress direction, the additive manufacturing path of the to-be-formed structural part is obtained. The effect of improving the mechanical property of the continuous fiber composite material structure is achieved, and the mechanical property of a composite material component is improved on the premise of the same fiber content.

The invention discloses bacillus subtilis and application thereof. The bacillus subtilis LDH-Y3 is obtained by being separated from Guangzhou commercially available Rakang goat milk pasteurized milk, and is preserved in Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC No: 64442. The bacterial strain is high in growth speed and high in activity, the maximum viable count reaches 9.36 log CFU / mL, and the bacterial strain has good gastrointestinal tract digestion resistance. The bacillus subtilis is high in cellulase production capacity, CMCase (Carboxymethyl Cellulase) reaches 39.66 U / mL, beta-Gase (beta-Gase) reaches 2.36 U / mL, and Fpase (Fpasease) reaches 11.37 U / mL. The strain has the capability of inhibiting helminthosporium convex hilum and helminthosporium longibrachiatum, and after solid state fermentation of corn straw, the content of neutral detergent fibers in the corn straw can be reduced, and the digestibility of the straw is improved.

The invention discloses an ablation-resistant EPDM (Ethylene-Propylene-Diene Monomer) thermal insulation material and a preparation method thereof, and belongs to the field of thermal insulation materials, the thermal insulation material is prepared from the following components in parts by mass: 70 to 80 parts of EPDM rubber, 20 to 30 parts of liquid EPDM, 15 to 20 parts of silicon dioxide, 10 to 40 parts of high-temperature-resistant filler, 10 to 15 parts of flame retardant, 10 to 15 parts of heat-resistant fiber and 3 to 5 parts of cross-linking agent. A third monomer of the ethylene propylene diene monomer is ethylidene norbornene, and the ethylene content is 50-60%. The raw materials are placed between double rollers to be mixed, and a mixed sheet is obtained; and performing vulcanization molding on the mixed sheet to obtain the ablation-resistant ethylene-propylene-diene monomer thermal insulation material. The content of the heat-resistant fibers is increased, the aramid fibers are subjected to in-situ carbonization to form a carbonized layer structure frame, and meanwhile, the content of SiO2 is regulated and controlled, so that the content of SiO2 is matched with the increase of the fibers, and the ablation resistance of the thermal insulation material is improved.

The present invention belongs to the technical field of the preparation of bio-based functional fibers, and relates to a preparation method of highly shrinkable polyethylene furandicarboxylate fibers. Preparation method: The polyethylene furandicarboxylate chips are dried and then melt-blended and spun to obtain highly shrinkable polyethylene furandicarboxylate fibers. The linear density of the fibers is 2.22 - 4.44 dtex, and the linear density deviation rate is -5% - 5%. The breaking strength of the fibers is 3.5 - 4.5 cN / dtex, the breaking elongation rate is 53.5 - 68.5%, the content of ultra-long fibers is 0 - 3 mg / 100 g, the content of defects is 3 - 20 mg / 100 g, the number of crimps is 12 - 15 per 25 mm, the crimp rate is 14% - 18%, and the boiling water shrinkage rate is 60 - 80%. The highly shrinkable polyethylene furandicarboxylate fibers prepared by the present invention are 100% highly shrinkable polyester fibers, and the fiber properties far exceed those of conventional highly shrinkable fibers, and can become an alternative product to PET.

The invention discloses a high roundness continuous fiber composite reinforced prepreg wire material and a preparation method thereof, the prepreg wire material is a special wire material for 3D printing manufactured by FFF fuse wires and is composed of a reinforcing material and a matrix, the matrix is thermoplastic resin, and the reinforcing material is chopped fibers and continuous fibers. The preparation method comprises the following steps: blending thermoplastic resin particles and chopped fibers according to a set ratio, and carrying out extrusion pelletizing to obtain short fiber reinforced particles; after short fiber reinforced granules are extruded by a single screw, the short fiber reinforced granules and the continuous fiber bundles enter a hot mold impregnation bin from different channels at the same time, and impregnation rods with different angles are arranged in the impregnation bin so as to promote a matrix to be adhered to the continuous fiber bundles; and then the continuous fiber bundle impregnated with the short fiber reinforced particles passes through a forming die with a certain diameter, and is finally drawn and wound to a wire coil. After the prepared prepreg wire is synergistically enhanced by the continuous fibers and the chopped fibers, not only are the fiber content and the mechanical property improved, but also the diameter uniformity of the wire is greatly improved.

The application discloses a processing method and device of bamboo, and relates to the field of material processing.The method comprises the following steps: processing round bamboo into bamboo board with a rectangular cross section; visually grading the end face of the bamboo board; establishing a bamboo fiber distribution density model; determining a sectioning position, and sectioning along the radial direction according to the relative value of fiber content distribution; independently grading and cold-pressing the bamboo slices obtained by sectioning; and respectively stacking and storing the bamboo slices with different thicknesses after vacuum drying and roller continuous drying. The bamboo slice sectioning device comprises a vacuum adsorption fixing device, which comprises a fixing device for adsorbing the bamboo board, and a fixing bottom plate, wherein a vacuum suction channel penetrating through the fixing bottom plate is arranged on the fixing bottom plate.The application can process the bamboo according to the fiber distribution along the radial direction of the bamboo wall, and prepare bamboo slices with different fiber contents and the same / different thicknesses, so that the uniform preparation and application of gradient variation bamboo are realized, the difference between units is eliminated, and materials and products with high strength and stable performance are more easily prepared.

The invention discloses a preparation technology of chickpea plant-based milk, and relates to the technical field of food processing. Comprising the following steps of cooking, crushing, homogenizing, first-time enzymolysis, pH adjustment, second-time enzymolysis, enzyme deactivation, filtering, ingredient blending, high-speed shearing, homogenizing, sterilizing and canning. According to the chickpea plant-based milk with the low glycemic index prepared on the basis of the enzymolysis technology, the protein content reaches 1.86 + / -0.05 g / 100g, the protein utilization rate is increased by 38.4%, and the fat content is 0.85 + / -0.13 g / 100g; the content of dietary fibers is 1.51 + / -0.29 g / 100g; the eGI value is 57.27 + / -1.35; the average particle size of the chickpea plant milk is 124.49 microns; the absolute value of the Zeta potential is 55.67 + / -2.16 mV; 11 flavor substances contributing to sense organs are detected in the plant milk, the content of beany flavor substances such as hexanal is reduced, other flavor substances are enhanced, and the plant milk is endowed with mellow fragrance, light fruit fragrance and more distinct layering sense.

The invention discloses lactobacillus plantarum LSR-22 and application thereof in preparation of silage, the biological preservation number of the lactobacillus plantarum LSR-22 is CCTCC M 20242927, the lactobacillus plantarum LSR-22 is used for preparing ruminant silage, the lactobacillus plantarum LSR-22 is inoculated and added into a mixed silage raw material, the water content of the silage raw material is adjusted to a preset value, and the silage raw material is sealed and packaged. And fermenting in a dark place for 45-70 days to prepare the silage. When the strain is used for fermenting the silage, the contents of dry matters and crude proteins can be remarkably increased, water-soluble carbohydrates are increased, and the fiber content is reduced, so that the nutritional value and digestibility of the silage are improved, the content of ammoniacal nitrogen can be reduced, the content of lactic acid can be increased, and the fermentation quality of the silage is further improved.

The invention discloses a device for preparing a continuous fiber reinforced thermoplastic resin composite prepreg wire rod, and belongs to the technical field of composite material manufacturing. The device comprises a continuous wire releasing system, a fiber pretreatment system, a resin impregnation system, a solution volatilization system, a wire shaping system and a post-treatment system. In the preparation process of the continuous fiber reinforced thermoplastic resin prepreg wire, the thermoplastic resin in the prepreg wire is fully wetted and uniformly distributed through the continuous activation treatment of the fiber pretreatment system and the homogenization extrusion impregnation process of the resin impregnation system. And continuous preparation of the 3D printing continuous fiber reinforced thermoplastic resin prepreg wire with high fiber content and low porosity can be realized through subsequent processes such as efficient volatilization of the solution volatilization system and multi-level pultrusion shaping of the shaping system. The mechanical property and the production efficiency of the 3D printing continuous fiber reinforced thermoplastic resin prepreg wire and the composite material thereof can be obviously enhanced, and meanwhile, the manufacturing scheme is stable and reliable.

The invention discloses an chemi-mechanical pulp production method capable of improving the filtration property of chemi-mechanical pulp, and relates to the technical field of papermaking, high-concentration grinding freeness is optimized to 640 + / -30ml, pulp fine fibers can be controlled at 22%-33%, the tensile index middle-lower limit and the bulk middle-upper limit, the high-concentration grinding effect is improved, the effect between fibers is facilitated, the effect between the fibers and a grinding sheet is reduced, and the filtration property of the chemi-mechanical pulp is improved. Fiber cutting is reduced, and the content of pulp fine fibers is reduced; the MSD torque is increased to 250 + / -10 KNM, the tearing effect of wood chips is improved, the preimpregnation reaction of the wood chips is facilitated, the original fine content is controlled to 26%-29% from original 22%-33%, the pulp bulk is increased by about 0.1 cm < 3 > / g, and the tensile index is increased by 1.0 N.m / g; the four low-concentration grinders are changed into parallel connection, so that the residence time of pulp in the low-concentration grinders is prolonged, the cutting effect of the pulp ground by the low-concentration grinders on fibers is reduced, light friction between grinding sheets and the fibers is increased, fibrillation of the fibers is facilitated, the bulk and the tensile strength are improved to a certain extent, and under the content of fine fibers, the size of the fibers is reduced. And the bulkiness and the tensile index of the finished pulp are also improved to a certain extent.

The invention relates to a preparation method and application of antibacterial and starch aging resistant biphase gel, and belongs to the field of food processing. The preparation method is characterized by comprising the following steps: preparing oleogel from monoglyceride, corn oil and curcumin, preparing hydrogel from wheat bran araboxylan and tea polyphenol, mixing the oleogel and the hydrogel, adding lecithin, and homogenizing at a high speed to obtain the gel with a two-phase system. The biphase gel produced by the invention has the characteristics of zero trans-fat, high fiber content, simple preparation method and the like, realizes synergistic stability of oil and water phases, has both the mechanical strength of oil gel and the biocompatibility of hydrogel, can replace shortening in baked food, and has a wide application prospect. And the shelf life of the baked product is prolonged through the synergistic effect of antibiosis and starch aging resistance. The mass ratio of the oil phase to the water phase in the biphase gel is 1: 3-3: 1, the addition amount is 10-20% of the mass of the flour, the bacteriostasis rates on penicillium and rhizopus are 60-85% and 65-90% respectively, the starch crystallinity in the bread storage process is reduced by 10-20%, and the shelf life of the bread is prolonged by 10-20 days.

The invention belongs to the technical field of biomass composite material processing, and discloses a plant fiber-polymer composite material and a preparation method thereof. The plant fiber-polymer composite material is prepared from the following raw materials in parts by mass through plasticizing extrusion molding: 50 to 88 parts of plant fibers, 0.5 to 8 parts of a biomass cross-linking agent, 0.5 to 5 parts of a low-temperature water-soluble polymer, 10 to 50 parts of water and 0.05 to 3 parts of metal ions, wherein the metal ions and the biomass cross-linking agent form a reversible cross-linked network in the system through coordination; due to the existence of the reversible cross-linked network, the composite material can be plasticized and continuously extruded and molded under the shearing action at the temperature of 20-70 DEG C. The metal ion-biomass cross-linking agent coordination network provides high structural strength in a static state and is reversibly dissociated in a shear field, so that shear-driven plasticizing of a high-viscosity and high-fiber-content system in a low-temperature interval of 20-70 DEG C is realized.

Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a Very Long Fiber (VLF) content of about 0.50% or less. The fibers are readily dispersible in water and useful in the formation of fibrous sheets, particularly wet-laid sheets and more particularly wet-laid tissue sheets having a relatively low basis weight. In addition of having a relatively long fiber length and a low VLF content, the pulps may also have a Dispersivity Index of about 2.00 or less, which is indicative of a relatively narrow fiber length distribution. The pulps may be prepared from plants of the family Asparagaceae by mechanical pulping and more preferably by a chemi-mechanical pulping process using an alkaline and hydrogen peroxide where the plant biomass is cut to size prior to pulping.

The invention discloses a light warm-keeping comfortable garment fabric and a preparation method thereof, and belongs to the technical field of textile fabrics. Through the content ratio of various fibers, the synergistic effect among the materials and reasonable compatibility design, on the basis of meeting the warm keeping performance of the fabric, the mass per unit area of the warm keeping fabric is reduced, the purposes of light weight and high efficiency are achieved, and meanwhile the comfort and warm keeping performance of the fabric are improved; the modified graphene oxide can be firmly attached to the surface of the fabric by reacting with the pretreated fabric gray fabric, so that the fabric is not easy to peel off from the surface of the fabric after being cleaned for multiple times, and the fabric can keep excellent warm-keeping, antistatic and antibacterial effects for a long time.

The utility model relates to the field of feed processing, discloses a caragana korshinskii rubbing machine for caragana korshinskii feed processing, and solves the problems that for small livestock, the rubbing machine can increase the number of small thorns and increase the kneading strength and effect, and for large livestock, the feed is prevented from being excessively crushed, certain roughness and fiber content are kept, and the quality of the livestock is improved. The caragana korshinskii rubbing machine for caragana korshinskii feed processing solves the problems that existing rollers are fixed in number, caragana korshinskii needs to be kneaded for multiple times when thinner filaments need to be kneaded, and time is wasted in the prior art, and the caragana korshinskii rubbing machine for caragana korshinskii feed processing comprises a base and a shell arranged above the base. The roller arranged on the inner side of the shell is provided with the pushing mechanism, the pushing mechanism is rotated to make the pushing mechanism move front and back, the number of barbs above the roller can be changed, and therefore the purpose of saving time is achieved.

The invention relates to the field of functional fabrics, in particular to an antistatic warm-keeping rabbit wool silk fabric. Which comprises a body, the body comprises a surface layer and a bottom layer connected with the surface layer, and is characterized in that the surface layer comprises 40-50% of regenerated cellulose fibers, 8-15% of spandex, 2-5% of rabbit wool and the balance acrylic fibers; the fiber content of the bottom layer is as follows: 22-30% of regenerated cellulose fiber, 3-5% of silk, 8-15% of spandex and the balance of acrylic fiber. The bottom layer containing silk and the surface layer containing rabbit wool are formed, so that the fabric has better antistatic property, heat preservation property and pilling resistance.

The cat litter is characterized by comprising the following components in percentage by mass: 45%-70% of alfalfa stubble powder, 10%-30% of wood fibers, 13%-15% of corn starch, 3% of baking soda, 2%-5% of xanthan gum and 2% of bacteriostatic and deodorant components. The cat litter prepared by using the alfalfa stubble as the raw material is completely prepared from natural raw materials, is low in cost, wide in source and capable of being naturally degraded, the water absorption and caking property of the cat litter are improved by utilizing the characteristic that the alfalfa stubble is high in fiber content, the caking property of the cat litter is further enhanced through the corn starch, and the cat litter has the advantages of being environment-friendly and energy-saving. The deodorization performance of the cat litter can be obviously improved through the alfalfa stubbles, the added mint essential oil and the added coffee grounds, the process is simple, the requirement for equipment is low, and industrial production can be achieved.

The utility model relates to the technical field of waste paper recovery, and discloses an efficient and intelligent waste paper quality detection system based on a near infrared spectrum technology, which can detect five quality parameters of water content, ash content, plastic content, fiber content and ratio of mechanical pulp to chemical pulp of waste paper bags, and comprises a set of waste paper bag drilling device and a set of waste paper quality detection device, the system comprises a set of equipment motion control system, a main control computer and a set of detection spectrum analysis system. The detection method comprises the steps that the waste paper bags are placed at the proper positions, bale breaking is not needed, all that is needed is to drill holes in the waste paper bags, then the detection probes stretch into the holes for testing, the testing results are transmitted back to the spectral analysis system for analysis, all indexes of the waste paper bags can be obtained, the whole process only needs three minutes, and high efficiency and intelligence are achieved.

The invention discloses an organic fertilizer production method, and particularly relates to the technical field of organic fertilizer production, and the method comprises the following steps: kitchen garbage is classified according to moisture and fiber content, and is pretreated by extrusion crushing and high-frequency vibration crushing; mixing the pretreated materials in proportion, inoculating a compound microbial agent, and performing efficient fermentation under the condition of intelligent temperature and humidity control; and gelatinizing the fermentation product with sodium alginate and calcium chloride to prepare the slow-release gel particle organic fertilizer. According to the organic fertilizer production method disclosed by the invention, the fermentation period is shortened and the production efficiency is improved through the synergistic effect of quality-divided pretreatment and the complex microbial inoculants; waste and environmental pollution caused by burst release of nutrients are effectively avoided; the product has the characteristics of convenience in application and long-acting slow release, can be directly applied through a drip irrigation system, greatly reduces the labor intensity, and has remarkable economic and environmental benefits.

The invention relates to a method and system for discriminating suitable harvest time of silage corn planting for feed, and belongs to the technical field of agricultural product harvesting methods. According to the method, silage corn quality evaluation indexes M and M are respectively calculated according to the following formula and formula II: M = Sta * CP * EE / NDF formula I and M = Sta * CP * EE / ADF formula II; wherein Sta is the numerical value of the content of the crude starch in the dimensionless silage corn with the dimension of%; cP is the numerical value of the content of the crude protein in the non-dimensional silage corn with the dimension of%; eE is the numerical value of the content of the crude fat in the dimensionless silage corn with the dimension of%; aDF is the numerical value of the acid detergent fiber content in the dimensionless silage corn with the dimension of%; the NDF is the numerical value of the content of the neutral detergent fibers in the dimensionless silage corn with the dimension of%; and when M is 8.5-13.5 and M'is 16.0-25.0, determining that the silage corn is in a suitable harvesting period. According to the method, the suitable harvesting period of the silage corn can be more accurately known, the crude starch content of the silage corn harvested in the harvesting period reaches 30% or above, and the requirement for the crude starch content of the high-quality silage corn is met.

A process is disclosed for creating a shelf-stable, grain-free, plant-based food composition with a crisp texture and integrated seasoning. The food compositions taught herein exhibit a low moisture content, high fiber content, and a desirable crispness that is maintained even when combined with milk or milk alternatives, enabling use as a grain-free breakfast cereal.

The present invention discloses a method and device for calculating the impact damage evolution of a braided composite material structure, which belongs to the field of mechanical performance calculation and analysis of composite material structures, and includes: obtaining material parameters and fiber content of a braided composite material; constructing a first representative volume unit model; adding material parameters to the first representative volume unit model, applying a quasi-static load to the first representative volume unit model, and obtaining a damage parameter curve of the braided composite material; applying a velocity load to the first representative volume unit model, and obtaining a stress-strain curve of the braided composite material; obtaining the braiding path of the fiber bundle of the braided composite material, and constructing a second representative volume unit model at a mesoscopic level; substituting the stress-strain curve into the second representative volume unit model, and obtaining a fiber bundle material matrix; and obtaining a damage evolution curve based on the fiber bundle material matrix and a set damage criterion. The present invention takes into account the structural characteristics of the braided composite material and can obtain a dynamic stress-strain curve.