730results about How to "Not broken" patented technology

The present invention relates to a multi-layered anti-adhesion barrier, particularly to a multi-layered anti-adhesion barrier comprising a nanofibrous structured base layer electrospun from a hydrophobic, biodegradable, biocompatible polymer and a polymer layer formed by coating a hydrophilic, biooriginated polymer on the base layer, and a method for the preparing the same. The multi-layered anti-adhesion barrier of the present invention can solve the problems of the conventional gel, solution, sponge, film or nonwoven type anti-adhesion systems, including adhesion to tissues or organs, flexibility, physical strength, ease of handling (ease of folding and bending), etc., offers improved user convenience. With a nanofibrous structure, the multi-layered anti-adhesion barrier of the present invention effectively blocks the infiltration or migration of blood and cells and promotes the healing of wounds. It is not torn or broken when folded or rolled and can be easily handled using small surgical instruments. Thus, it can minimize a foreign body reaction when used in various surgical operations.

An interactive smart nails and network information systems, its features is that it is formed by at least by a group of interactive intelligent nails, multifunctional vehicle card / box structure, an interactive smart nails with the appropriate spacing emplaced on the road , road side road or parking place, multifunctional vehicle card / box placed in vehicles, interactive smart nail through its embedded between the wired or wireless data communication devices direct or indirect data communication connectivity, interactive Intelligence nails passing through or near their vehicles at the multi-purpose vehicle card / box and through their respective embedded wireless data communication devices can be single / two-way information and communication. This invention has a variety of functions, high level of intelligence information, reliable performance, lower system costs, the advantages of easy installation, and system maintenance and expansion easy, round-the-clock weather conditions in the application.

The invention discloses a low-density aerogel composite material and block-shaped low-density gel insulating composite material through packing the low-density aerogel composite material, which comprises the following steps: utilizing high-polymerization degree polyacrylic acid as porous nanometer silica reinforced frame to make the silica gel and composite material with certain elasticity and contractility; inhibiting crack during gel preparing course and hyper-critical drying course effectively; adopting packing slurry with alumina, titania, carborundum, hollow glass microball or ferroferric oxide and soluble silicate, organosilicon resin or silica gel to pack the surface of large block of silica aerogel; sintering the packed aerogel composite material at 650-700 deg. c; using the material under 1000 deg. c at most.

The invention provides a preparing method of an environment-friendly solvent-type electrostatic spinning waterproof and moisture-permeable membrane. The preparing method is characterized by comprisingthe steps of 1, preparing a high-molecular polymer solution with water or environment-friendly alcohols being solvents, adding a corresponding water-soluble or alcohol-soluble water repelling agent and cross-linking agent, and preparing a hydrophobic fiber membrane through an electrostatic spinning technology; 2, conducting aftertreatment on the fiber membrane to trigger a chemical crosslinking reaction between a polymer matrix and the cross-linking agent, reinforcing the water resistance of the fiber membrane and regulating the pore structure of the fiber membrane to obtain the environment-friendly solvent-type electrostatic spinning waterproof and moisture-permeable membrane. In the production process, no waste gas, waste water and solid waste are generated, the environment cannot be damaged, the prepared waterproof and moisture-permeable membrane does not contain toxic solvents, and in the actual application, the healthy of a wearer cannot be damaged; the resistance to water pressure of the fiber-based waterproof and moisture-permeable membrane is larger than or equal to 150 kPa, the moisture permeability is larger than or equal to 15,000 g / m<2> / d, the tensile breaking strengthis larger than or equal to 30 MPa, and the environment-friendly solvent-type electrostatic spinning waterproof and moisture-permeable membrane has a large application prospect in the field of functional protective clothes.

The invention provides a neutral water-based cleaning agent and a preparation method thereof. The neutral water-based cleaning agent comprises the following components in percentage by mass: 0.5-1.5%, preferably 1%, of aliphatic alcohol alkoxy surfactant, 1-5%, preferably 3%, of aliphatic alcohol polyoxyethylene ether surfactant, 1-5%, preferably 3%, of ployether surfactant, and 0.5-1%, preferably 0.7%, of linear alkyl benzene sodium sulfonate. In the invention, as nonionic surfactants are compounded with anionic surfactants, surface tension of the cleaning agent is reduced, and pH of the cleaning agent is kept neutral; the neutral water-based cleaning agent disclosed by the invention has a good cleaning effect on polar and nonpolar pollutants, and can achieve an unexpected beneficial effect in cleaning slits by adopting physical cleaning means such as ultrasonic cleaning, high-pressure spraying, brushing and the like.

The invention provides a gradient cathode piece and a lithium ion battery preparation method with the same. The gradient cathode piece is prepared by sequentially coating a first size layer, a second size layer and a third size layer on a copper foil, wherein active components in the first size layer, the second size layer and the third size layer increase gradually. A lithium ion battery is prepared with the gradient cathode piece. The gradient cathode piece is easy to industrialize. Inner stress, generated during lithium insertion and lithium removing, of alloy materials of the gradient cathode piece in the lithium ion battery can be controlled effectively, damage, caused by expansion stress, of the gradient cathode piece is lowered greatly, and accordingly wrinkle and breakage of the gradient cathode piece are avoided, and performances such as multiplying power and capacity retention ratio of the lithium ion battery are increased effectively.

The invention provides a novel fast and non-destructive analysis method for the nutritional quality of cottonseed. The method comprises the following steps: 1) selecting whole cottonseeds of representative cotton varieties as experimental samples; 2) using a near-infrared spectrometer to collect near-infrared spectral data of whole cottonseeds, and the spectral scanning range is 800-2500nm; 3) using the national standard method Accurately analyze the nutritional quality of cottonseed; 4) Preprocess the near-infrared spectrum data; 5) Select spectral variables to eliminate non-informative variables; 6) Use the multivariate correction method to establish the near-infrared spectrum of whole cottonseed and the nutritional value of whole cottonseed 7) Performance evaluation of the calibration model; 8) Collect near-infrared spectral data of the whole cottonseed to be tested, and use the calibration model to predict its nutritional quality after preprocessing the spectral data. The invention has fast analysis speed, does not destroy samples, does not require sample pretreatment, has high detection accuracy, and can analyze various nutritional quality components in cotton seeds at the same time, and provides a convenient, fast and efficient analysis method for cotton breeding and cotton seed inspection.

The invention discloses an automatic electric switch cabinet fire extinguishing system and a fire recognition method, wherein the automatic electric switch cabinet fire extinguishing system comprises a fire extinguishing agent nozzle which is arranged in an electric switch cabinet; the fire extinguishing agent nozzle is connected with a storage device in which a non-conducting fire extinguishing agent is stored through a pipeline; an electromagnetic valve which is controlled by a central controller is arranged on a pipeline; a photoelectric sensor is also arranged in the electric switch cabinet; and the photoelectric sensor outputs a detection signal to the central controller and then the central controller judges whether to open the electromagnetic valve. The automatic electric switch cabinet fire extinguishing system is capable of responding sudden electric fire and reducing the loss caused thereby. Fire extinguishing agents such as heptafluoropropane and superfine dry powder are used and non-conducting, so that secondary danger caused by conduction of fire extinguishing agents does not occur; and the fire extinguishing agents are environmental-friendly, so that the damage to the environment caused by conduction of fire extinguishing agents also does not occur. The photoelectric sensor is used, so that the fire such as electric arc and the like in the switch cabinet can be rapidly and correctly detected.

The invention discloses an industrialized, large-scale and factorized modular integrated house, which has the advantages of quick construction, firmness, durability, wind resistance, shock absorption, convenience in secondary disassembly and assembly and the like, is beneficial to warehousing and transportation, is not required to be installed by professionals and realizes industrialized and large-scale production and free house combination. The modular integrated house comprises ground beams which form a frame-type structure through connecting profiles; a plurality of floor units are detachably connected into a whole, and the integral edge of the floor units is lapped on a floor on the upper part of the inner side of the frame-type structure of the ground beams; a plurality of wall panels are detachably connected into transverse and longitudinal wall panels, an upright post is fixedly arranged on each corner of the ground beams, the lateral surfaces and the bottoms of the transverse and longitudinal wall panels are correspondingly detachably arranged on the upright posts and the ground beams to form an integral wall of the integrated house, and doors and windows are formed on the wall panels; and transverse and longitudinal collecting edges arranged on the tops of the wall panels and a ridge are positioned on the roof of the integrated house to form a roof slab.

The invention relates to a high chromium abrasion-resistant cast iron grinding plate and the manufacturing method, which belongs to the paper making technology field. The invention comprises the following chemical compositions (weight percent): C is 2.0-3.5 percent, Cr is 22.0-28.0 percent, Mn is1.5-2.5 percent, Si is lower than 1.0 percent, W is0.25-0.60 percent, Nb is 0.03-0.12 percent, Ta is 0.01-0.04 percent, V is 0.10-0.25 percent, Ti is 0.08-0.15 percent, RE is 0.05-0.20 percent, B is 0.02-0.10 percent, Mg is 0.04-0.10 percent, and the residual is Fe and inevitable trace impurity. The grinding plate of the invention can be manufactured by adopting an electric furnace, the precoated sand mold casting is operated, the texture of the grinding plate is fine, the intensity is high, toughness is good, and the abrasion resistance and the corrosion resistance are good. The production process of the grinding plate is simple, the cost is low, the main raw material is chromium iron, and inexpensive tungsten slag ferro alloy and vanadium slag ferro alloy are added to be used as auxiliary alloying elements. The grinding plate of the invention is used, production efficiency of a pulp grinder can be improved, the pulp grinding cost is reduced, the physical property of finished paper is bettered, and the grinding plate has good economic and social efficiency.

A wind-solar hybrid street lamp intelligent controller with adaptive regulating capacity comprises a control center, a negative-feedback PWM controller with forward feed, a user mode input interface and a status indication interface. The control center decides charge and discharge control modes and control parameters through respectively testing voltage and circuit of a wind-driven generator after rectification and filtering, voltage and circuit of a solar panel, and voltage and circuit of an accumulator port. The negative-feedback PWM controller with forward feed controls voltage inversion and charging efficiency of charging circuits through PWM signals. The wind-solar hybrid street lamp intelligent controller optimizes complementary effect of wind energy and solar energy according to wind force and automatic adaptive regulation of solar power, which ensures practical charging effect.

The invention discloses an apricot pit hull breaking machine which comprises an apricot pit supporting pad and an apricot pit conveying part, wherein a collision stopping seat and a collision rod are respectively arranged on two sides of the supporting pad; a sliding block is arranged between the collision stopping seat and the collision rod; a pressing rod for pressing and stabilizing apricot pits is arranged above the supporting pad; a photoelectric sensor for identifying whether an apricot pit is put on the supporting pad is arranged beside the supporting pad; and a programmable logic controller (PLC) is additionally arranged and is in signal and control connection with the photoelectric sensor, an apricot pit conveying part execution switch, an up-and-down moving control switch of the pressing rod, and a collision motion control switch of the collision rod. The apricot pit hull breaking machine is used for breaking hulls of the apricot pits or other fruit kernels or other nuts, and is complete in structure, high in automation degree, good in effect, high in efficiency and wide in application.

The invention discloses a special earthquake isolation and damping support seat which is suitable for railways and bridges and comprises a lead core lamination rubber support seat and an X-shaped mild steel damper, wherein the X-shaped mild steel damper consists of more than three X-shaped mild steel damper single sheets which are sequentially parallel and is arranged at the left side and the right side of the lead core lamination rubber support seat, and the upper end and the lower end of both sides of the X-shaped mild steel damper are respectively fixed on an upper connecting plate and a lower connecting plate of the lead core lamination rubber support seat with high-strength bolts. The special earthquake isolation and damping support seat disclosed by the invention can increase the initial rigidity, enhance the yield strength, efficiently limit displacement of the bridge during small earthquake and middle earthquake, ensure the safety of train running and fulfill the function of better earthquake isolation and damping during large earthquake.

The invention discloses a drought resisting and forest planting method for a karst region difficult site and relates to the technical field of drought resisting and forest planting. The drought resisting and forest planting method includes the following steps that (1), places for planting trees are selected; (2), the specification and method of soil preparation are performed; (3), a water collection hopper is constructed; (4), rooting water: after nursery stocks are planted, the rooting water is watered sufficiently; (5), forest planting tree species and the age of the nursery stocks: the forest planting tree species comprise cipressus duclouxiana, weeping cypresses, privet, black locusts, nuts, roxburgh rose, peppers, amur honeysuckle and others, and the age of the nursery stocks is one year. The method is simple, easy to operate, low in cost and free of soil pollution and rapidly brought into effect, and has very important and profound significance for accelerating vegetation recovery and vegetation reconstruction in a karst stony desertification environment and for improving the ecological environment. The method is easy and practical to operate, low in cost and high in pertinence, not only does not damage the environment, but also does not affect normal growth of the trees, and is particularly suitable for being popularized and used for forest planting in the difficult site region of the karst stony desertification environment.

The invention discloses a high molecular electric ground heating module with waterproofness, high temperature resistance and flame-retarding function, which belongs to the field of heating devices. A waterproof layer is coated outside a non-woven fabric layer; the upper layer of a heat-preserving layer is a heating layer; the bottom of the heat-preserving layer is coated with a reflecting film by using a pure metal aluminum foil; the non-woven fabric layer is coated outside the heat-preserving layer, the heating layer and the reflecting film; the waterproof layer is made of a cement-based high molecular waterproof material; the heating layer is a membrane made of a high molecular carbon fiber heating material; the heat-preserving layer is a high-density phenolic aldehyde board; the reflecting film is covered at the bottom of the heat-preserving layer through a pure metal aluminum foil; the layers are bonded by using high-temperature-resistant environment-friendly glue, and are formed by pressing; and the outer periphery of each layer is provided with metal aluminum foil wrappings. The high molecular electric ground heating module has the advantages of attractive, dampness prevention, electric heating transformation efficiency of over 99 percent, saving in electricity and energy, safety, reliability, high insulating property, long service life, quick temperature rise, environment friendliness, health-care physical therapy effect and good health-care effect on human bodies.

The invention discloses a hydro-electric generator set, which comprises a fixation frame; a generator is arranged on the fixation frame; a plurality of set converters are arranged under the fixation frame in sequence; a water wheel component which can rotate after being driven by natural running water is arranged at the outlet end of each set converter; a transmission mechanism is arranged between the water wheel component and the generator; an adjusting device capable of adjusting water flux entering the water wheel component is arranged at the front end of the water wheel component under the fixation frame; the purpose of the invention lies in that shortcoming of current technology can be overcome; a hydro-electric generator set is provided with simple structure, capability of utilizing energy of natural current without a need of dam railing, and low power generation cost.

The invention belongs to the technical field of food processing and specifically relates to a flavored low-fat white mushroom crisp chip and a preparation method thereof. The flavored low-fat white mushroom crisp chip comprises the following materials in parts by weight: 1000 parts of white mushrooms, 5-10 parts of konjac glucomannan, 10-80 parts of chitosan, 10-60 parts of salt, 60-200 parts of isolated soybean protein and 40-200 parts of a nutrition balancing agent. The preparation method comprises the following steps: pre-treating the white mushrooms, preparing impregnation liquid, carrying out vacuum soaking and ultrasonic coating, carrying out quick-freezing and slicing, carrying out vacuum frying and dehydrating, removing oil, and packaging. The prepared flavored low-fat white mushroom crisp chip has the advantages of being low in fat content, uniform in color, crisp in mouthfeel, full in nutrition, complete in product shape and almost free of fractures.

The invention discloses a wood plastic substrate of a highway noise barrier, which is characterized by consisting of the following components in part by weight: 70 to 90 parts of wood fiber, 90 to 110 parts of plastics, 0.5 to 0.8 part of calcium stearate, 0.2 to 0.4 part of antioxidant, 0.2 to 0.4 part of ultraviolet resistant absorbent, 20 to 30 parts of inorganic particle and 0.2 to 0.4 part of flame retardant. The noise barrier manufactured by using the wood plastic substrate has the characteristics of weathering resistance, no crazing and cracks, low contractility or expansibility and freeness from the damage of molds or white ants. In addition, the wood plastic substrate of the highway noise barrier can be recycled so as to be safe and environmentally-friendly.

The invention relates to an artificial sacrum prosthese, formed by an iliac bone connecting structure and a low lumbar vertebral arch nail rod. The invention is characterized in that the main body of the iliac bone connecting structure is in arc shape, whose middle is arranged with a lumbar bottom support table engaged with the cut lower plate of lumbar; the lower ends of two sides of arc are engaged with the cut sacrum joint and arranged with the iliac bone nail; two upper sides of the arc are arranged with both one sacrum rod whose end is arranged with the connecting part engaged with the upper part of iliac bone. The invention sets the iliac bone connecting structure in arc shape to meet the sacrum physiological structure, to stabilize the basin ring, improve the stress transmission and reduce the nail loosen. When in use, the two side sacrum joint cut are less, to avoid damaging the ear face, to be used to rebuild the basin.

The invention relates to a PE-RT (polyethylene of raised temperature resistance) composition and application thereof, belonging to the field of polyethylene pipelines. The PE-RT composition is characterized by comprising the following components in parts by weight: 100 parts of PE-RT and 0.1-1.5 parts of antioxidant, wherein the PE-RT is an ethylene-hexene-1 copolymer which has a density of 0.926-0.950 g / cm<3>, a melt flow rate of 0.1-2 g / 10min (190 DEG C, 2.16Kg of weights), unimodal molecular weight distribution and a relative branching degree of 0.08-0.50; and the antioxidant comprises a hindered phenol antioxidant and a phosphite antioxidant. According to the invention, the PE-RT composition having excellent mechanical properties, high-temperature creep resistance, heat aging resistance and extrusion processability is prepared from the heat-resistant ethylene-hexene copolymer, the antioxidant and other components, thereby further improving the practical performance of PE-RT pipe products. Thus, the PE-RT composition can be used for the preparation of pipe products and pipe fittings for a hot water pipeline system.

The invention provides a high toughness and high entropy alloy with a gradient grain structure and a preparation method thereof. The alloy is a novel CoCrFeNi high entropy alloy. The invention discloses a high toughness and high entropy alloy with a gradient grain structure and a preparation method thereof. The high entropy alloy is a CoCrFeNi alloy, has a single phase face-centered cubic structure, and is composed of following components in atomic percentage by weight: 38 to 42% of Co, 24 to 26% of Cr, 8 to 12% of Fe, and 24 to 26% of Ni, wherein the total atomic percentage by weight is 100%.By increasing the Co content of the alloy, the rolling resistant force during the preparation process is reduced, then low temperature annealing is performed to obtain the high entropy alloy with a gradient grain structure, and the strength of the high entropy alloy is improved on the basis that the plasticity is not influenced.

The invention relates to a treatment process of leather, in particular to a carving and molding process of leather with a concave-convex arabesquitic pattern structure. The process comprises the following steps of: 1), manufacturing a corresponding plastic absorbing mold according to a selected stereoscopic figure or pattern; 2), putting the leather above the plastic absorbing mold in a vacuum plastic absorbing device, folding the leather with the plastic absorbing mold after the leather is heated to 90-120 DEG C, sealing four sides of the leather with four sides of the plastic absorbing mold, and applying vacuum, so that the leather is clung on the surface of the plastic absorbing mold to be molded; and 3), cooling the molded leather through an air cooling or water cooling way, and carrying out demolding to obtain a leather product with a concave-convex carved and molded structure. By using the carving and molding process, the plastic absorbing carving and molding are adopted; the whole flow is simple and convenient; the operation cost is low; the plastic adsorbing mold only needs one mold; moreover, a material does not need quite high strength; and thus, the carving and molding process is also lower in the machining cost of the mold.

The invention discloses a method for producing an active carbon by utilizing a stalk of spartina alterniflora. The step of the invention is characterized in that rinsing, drying and then crushing the stalk; putting the crushed spartina alterniflora stalk powder into a phosphoric acid or a potassium hydroxide solution, stirring up evenly and soaking, then separating the solid and the liquid; the separated spartina alterniflora stalk powder is positioned in a tubular oven or a carbonizing oven after drying and carbonizing under the nitrogen protection; continuing to charge the nitrogen or an activation gas to activate after carbonizing; the activated spartina alterniflora stalk powder is rinsed by water, and the active carbon is got after drying. The method for producing the active carbon has the advantages of using the high carbonaceous invasive species apartina alterniflora to act as the raw material, making the active carbon low price and good adsorption performance through the simple, safe, and high efficient process, and realizing to utilize the spartina alterniflora as a resource.

The invention provides a production method of biopesticide, comprising the steps of sorting, dipping, enzymolysis and boiling. Specifically, the purchased Chinese herbal medicine with the functions of sterilization, deinsectization and killing pests is separated according to grades; the obtained raw materials are dipped, boiled and / or performed with enzymolysis to take juice; mixed liquid medicine is obtained by stirring, low-temperature squeezing and filtering as well as high speed centrifugation; after high-pressure filtration and concentration extraction, biopesticide of which the volume concentration is 30-40% is prepared; during dipping, the raw material are dipped in a large pool for 3-5 hours; during boiling, the raw material are boiled at the temperature of 80-100 DEG C; and during high-pressure filtration, mixed liquid medicine is filtered under the pressure which is less than or equal to 100 kg to obtain the filtered liquid medicine. The biopesticide prepared with the method of the invention has no toxicity or harm on people and livestock, does not damage nature, does not pollute environment, can replace chemical and chemical industry synthetic pesticides used at present at home and abroad, can be used for sterilization, deinsectization and killing pests for crops and vegetables.

The invention discloses a filter paper belt transmission device and method for improving [Beta]-ray detection accuracy of flue gas particulate matters. The filter paper belt transmission device for improving the [Beta]-ray detection accuracy of the flue gas particulate matters comprises a flue gas particulate matter [Beta]-ray online monitor; the flue gas particulate matter [Beta]-ray online monitor comprises a mounting plate; the mounting plate is provided with a sampling unit, a detecting unit, a filter paper belt, a filter paper belt transmission device, a paper collecting and releasing mechanism, and a paper pressing mechanism; the sampling unit includes a flow control module and a sampling pump; the detecting unit includes a [Beta]-ray radioactive source and a detector; and the filterpaper belt transmission device includes a straight line sliding table, an encoder counter, a guide wheel, a paper belt left transmission wheel, and a paper belt right transmission wheel. The invention ensures that the filter paper is continuously tightened and is not broken or damaged during the movement of the filter paper belt; therefore, the blank filter paper error during the measurement process is reduced. Since the automatic zero point calibration can be realized in each measurement cycle, the repeatability of the instrument measurement is ensured, and the [Beta]-ray detection accuracyof the flue gas particulate matters is improved.

The invention discloses a moso bamboo cavity liquid fertilizer production-increasing agent which is prepared by dissolving the fertilizers of elements such as N, P, K, Zn, B and Mo and phytohormone, mixing, filtering and the like, wherein N, P and K in the fertilizer are calculated as the forms of N, P2O5 and K2O and the percentages thereof are separately 10-15%, 5-10% and 3-7%, the percentages of Zn, B and Mo are separately 0.1-0.5%, 0.1-0.5% and 0.01-0.05%, and the percentage of phytohormone is 0.01-0.1%. phytohormone is gibberellin or one or more of cytokinins. By using the production-increasing agent of the invention, the activities of various enzymes in the moso bamboo can be effectively improved, the chlorophyll content can be increased, the photosynthetic rate can be increased and the growth of rhizome-root and the differentiation of bamboo bud can be promoted, thus the yield of bamboo and the property of bamboo wood and the stress resistance of bamboo forest can be increased; and the quantity of the fertilizer is small, the fertilizer effect and yield-increasing effect are good, soil can not be destroyed by applying the fertilizer, the operation is simple, and the fertilizer is economic and practical.

The invention discloses a grinding ball specialized for a mine. The grinding ball specialized for the mine comprises the following chemical components in percentage by weight: 1.0-2.9 of C, 5.0-11.5 of Cr, 0.3-0.9 of Si, 0.4-0.8 of Mn, no more than 0.8 of W, 0.05-0.20 of Y, no more than 0.08 of S, no more than 0.08 of P and the balance Fe. In the process of casting, yttrium-base heavy rare earth copper modificator with adding amount accounting for 0.1-0.3 of the molten iron. The grinding ball specialized for the mine of the invention is smelted by using a medium frequency electric furnace and casted by using a metal mould; raw materials use high quality steel pig iron and high quality waste steel and are modified by using ferrochrome, ferromanganese and ferrosilicon; after each chemical component in the molten iron reaches the requirement of the grinding ball specialized for the mine, the yttrium-base heavy rare earth copper modificator is directly added into a foundry ladle; and then the molten iron is poured into the metal models to produce the grinding ball specialized for the mine.

The invention provides a method for distinguishing variety of fritillaria and detecting total alkaloid content of the fritillaria by virtue of near infrared spectrum. The method provided by the invention comprises the following steps: (1) collecting a fritillaria sample; (2) measuring the near infrared diffuse reflection spectrogram of the fritillaria sample, preprocessing the 4000-5000cm<-1> wave band in the spectrogram, and performing cluster analysis on the pre-processed near infrared spectrogram to build a qualitative model; or preprocessing the 4000-7000cm<-1> wave band in the spectrogram, so as to obtain an absorbance, associating the absorbance with the alkaloid content of the sample measured by virtue of bromothymol blue colorimetry, and building a quantitative correction model for detecting alkaloid by one or more methods of a partial least squares method, a principal component regression method and a multiple linear regression method; (3) collecting the near infrared spectrogram of the sample to be measured, after the corresponding preprocessing is performed, distinguishing the variety of the fritillaria and detecting total alkaloid content of the fritillaria by utilizing the built qualitative model or quantitative correction model. The method provided by the invention has the characteristics of fast speed, no damage, environment friendliness and low cost.

The invention belongs to the field of new materials for fire control, and relates to a novel fire-proof composite board. According to the fire-proof composite board, a high-strength magnesium calcium silicate jelling inorganic material is used as an upper plane material and a lower plane material, a magnesium calcium silicate structure composite layer is taken as a core layer, and aluminum sulfate fiber grid glass fibers or non-inflammable non-woven fabrics or plant fibers are taken as reinforcing materials, are laid outside the core layer and are formed in a hot-pressing and composite mode. The high-strength magnesium calcium silicate jelling inorganic material comprises, by weight, 20%-25% of magnesium sulfate, 15%-20% of calcium silicate, 3%-5% of wollastonite fibers, 30%-40% of magnesium oxide, 3%-5% of plant fibers, 3%-5% of aluminum sulfate fibers, 3%-5% of modifying agents, 3%-5% of bentonite, 3%-5% of foaming agents, 1%-3% of phosphoric acid and the balance water. The magnesium composite board can bear a high temperature of 1000 DEG C, the fire-proof performance reaches the A1 level, the material cannot crack or deform, the strength is high, the composite board is sound-proof and thermal-insulating, the service life of the composite board can reach more than 30 years, the composite board can be nailed and planed and is convenient to use, the defects that a traditional fire-proof board is flammable and prone to halogenide, efflorescence and deformation are thoroughly overcome, and the composite board is suitable for decoration fire-proof boards, fire-proof smoke exhaust air pipe and the like.