33results about How to "Avoid method" patented technology

The invention relates to the technical field of lithium battery parameter determination methods, in particular to a lithium battery cycle life quick testing method. The method includes the steps of step 1, determining charge state interval for cycle life quick testing according to polarization voltage characteristics of a battery sample, step 2, carrying out a battery cycle life quick test to obtain cycle life test experimental data, step 3, carrying out cycle life mathematic model deduction in partial charge interval, step 4, establishing cycle life deduction mathematic models in 0-100% charge interval, step 5, obtaining a cycle life formula of a battery in the 0-100% charge interval, and step 6, estimating the cycle life of the tested battery. The lithium battery cycle life quick testing method overcomes the defects that time for conventional testing is long, and difference between an accelerated cycle life testing method and the reality is large, and shortens design, development and testing periods of batteries.

The invention discloses a welding seam tracking control device and method based on a cross laser device. The welding seam tracking control device is characterized by comprising a four-freedom-degree robot, a visual sensor and an integrated control cabinet; the four-freedom-degree robot comprises a working platform, a moving module, a Y-axis stepping motor, a bracket and a welding gun; the Y-axis stepping motor is fixed to a Z-axis slide table of a Z-axial moving module body, and a rotary shaft of the Y-axis stepping motor is parallel to the moving direction of a Y-axial moving module body; the bracket is used for fixing the visual sensor and the welding gun; the visual sensor comprises a camera and the cross laser device; and cross laser rays emitted by the cross laser device are irradiated on a to-be-welded workpiece and shot by the camera. The welding seam tracking control method is used for conducting vision measurement on fillet welding seams, three-dimensional position information of the welding seams, the inclined angle of the plane of the welded workpiece and the directions of the welding seams can be obtained accurately, and the welding gun can conduct high-precision self-adapting tracking control over the welding seams.

The invention discloses a mid-infrared laser measurement system and method for engine combustion process monitoring. The measurement system comprises a laser device and detectors, the laser device cantransmit mid-infrared laser within a specific wavelength range, and the mid-infrared laser is absorbed by engine combustion flames. Particularly, the laser transmitted by the laser device is dividedinto two beams by a beam splitter, one beam of laser passes a laser calibration device and is measured by the first detector and used for calibrating wavelengths generated by the laser device, the other beam of laser is absorbed by carbon dioxide gas generated by combustion, measured by the second detector and acquired by a data acquisition system, and concentration information of carbon dioxide can be acquired by processing, so that the combustion efficiency of an engine is acquired. According to the system, background absorption interference of the carbon dioxide in an environment is omittedwithin the selected laser wavelength range, the carbon dioxide is obviously absorbed in the high-temperature environment, interference of other combustion products such as water molecules and intermediates is omitted, and high measurement accuracy of the combustion efficiency of the engine can be achieved.

The invention discloses a pneumatic type / mechanical type combined adjustment mach number 0-7 stage combined engine air inlet. The pneumatic type / mechanical type combined adjustment mach number 0-7 stage combined engine air inlet is mainly composed of a high-speed channel, a low-speed channel, a mechanical type variable geometry assembly and a pneumatic type shock wave adjusting assembly. Under the low-speed mode, the mechanical type variable geometry assembly is adopted for adjusting the throat area and the internal shrinkage ratio of the air inlet, and the low mach number starting performance and the high mach number compression performance of the air inlet are guaranteed; and under the high-speed mode, the pneumatic type shock wave adjusting assembly is used for adjusting the precursor shock wave position, the precursor shock wave sealing state is kept, and the discharge coefficient and the working performance of the air inlet are obviously improved within the wide mach number scope. According to the pneumatic type / mechanical type combined adjustment scheme, the compression amount and the precursor shock wave position of the air inlet can be continuously adjusted, it is guaranteed that the combined engine air inlet can effectively work within the wide mach number scope, and the good pneumatic performance is obtained.

The invention belongs to the technical field of computer multimedia. In order to provide a simple and practical multi-view video interpolation and three-dimensional modeling method, the invention adopts the technical scheme that: a time-space jointed multi-view video interpolation and three-dimensional modeling method is provided, a plurality of camera arrays are grouped in a spacing manner, and the three-dimensional model of a scene at every moment is reconstructed. The time-space jointed multi-view video interpolation and three-dimensional modeling method specifically comprises the following steps of: (1) obtaining unacquired frames between two frames through interpolation; (2) obtaining an image of unacquired visual angles at this moment by using a model-assisted weighting method; (3) calculating and extracting key points; (4) describing the extracted key points by using shape context and solving by the Hungarian method; (5) obtaining final interpolated frames through solving the problem of Poisson editing and optimization; and (6) reconstructing and rendering the three-dimensional model of the scene. The time-space jointed multi-view video interpolation and three-dimensional modeling method is mainly applied to the design and the manufacture of antennae.

The invention provides a non-contact motion measurement method for an object suspended by a helicopter, which is used for measuring the position and the posture of an object suspended by a helicopterduring the flight. A binocular camera and two lidars are mounted on the belly of a helicopter. An optical mark having a specific pattern is attached to a suspended object for identification and tracking of the suspended object. The binocular camera is used to observe moving images of the suspended object in real time. The lidar is used to scan the contour of the suspended object in real time. Themethod comprises the following steps: acquiring the position and the posture of the helicopter; determining the translation matrix and the rotation matrix of a camera coordinate system, a lidar coordinate system and a helicopter body coordinate system by calibration; and calculating the displacement and the attitude of the suspended object relative to the helicopter body and the attitude relativeto the geodetic coordinate system. The invention solves problems of real-time measurement of the motion state of an object suspended by a helicopter, and provides accurate and reliable data for studying the influence of the suspended object on the manipulation and the flight quality of a helicopter.

The invention discloses a method for checking the perpendicularity between a laser nozzle and a machining surface. The method comprises the steps of: arranging three distance measuring sensors at the same position of the laser nozzle and making the distance measuring direction of a first distance measuring sensor be parallel to the axial direction of the laser nozzle, and making a second distance measuring sensor and a third distance measuring sensor form in an included angle alpha with the axial direction of the laser nozzle; measuring a distance a from the first distance measuring sensor to the machining surface, a distance b from the second distance measuring sensor to the machining surface, and a distance c from the third distance measuring sensor to the machining surface; and calculating the ratios of a and b and a and c, judging whether the two ratios are both equal to cosine alpha, if yes, judging that the laser nozzle is perpendicular to the machining surface, and if not, judging that the laser nozzle is not perpendicular to the machining surface. According to the method, three distance measuring sensors are adopted such that the observation by naked eye and the contact type ruler measurement method in the prior art are replaced, and the relation between the laser nozzle and the machining surface can be rapidly and accurately recognized. The invention also discloses a system for checking the perpendicularity between the laser nozzle and the machining surface, and the system has the beneficial effects as recited above.

The invention discloses a preparation method and SERS application of monodispersed silver-shell magnetic microspheres. In a base, 400 nm Fe3O4 microspheres are taken as cores to provide magnetism, 50 nm SiO2 shells are taken as hydrophilic sandwich layers to improve the dispersibility of the microspheres, and complete and uniform silver shells are prepared with chemical plating and seed reduction methods. The preparation method comprises the following steps: enabling the 400 nm Fe3O4 microspheres to be covered with the 50 nm SiO2 shells with an improved Stober method, and then carrying out sensitization on the SiO2 shells through SnCl2, so that a great deal of Sn<2+> are adsorbed; washing the magnetic microspheres with deionized water, after the SnCl2 is completely removed, and using a 40 mM silver-ammonia solution to perform kernelization on Fe3O4@SiO2 under an ultrasonic condition, so that a large quantity of Ag seeds are generated in an in situ manner; finally using a seed growing method, and under high-concentration PVP protection, using formaldehyde and stronger ammonia water to reduce the complete and uniform Ag shells so as to form the monodispersed silver-shell magnetic microspheres. The invention also discloses application of the silver-shell magnetic microspheres prepared through the method in SERS detection, the monodispersed silver-shell magnetic microspheres are high in magnetic responsiveness, good in dispersibility, stable in structure and extremely high in enhancing effect, and can be directly used for SERS detection of various micromolecular pollutants, pesticide residues, serum, cancer biomarkers and the like under a solution system.

The invention discloses a method of using an SVM classifier to identify handset users. Firstly, a user holds a handset to make a prescribed motion and through a handset linear acceleration sensor and a direction sensor, the values of a three-dimension coordinate (x, y, z) are acquired for once in a sampling period and the obtained data is processed and then the SVM is used to carry out classification identification. After the processing is completed, different users can be distinguished accurately as long as the users make specified motions so that a user identification objective is achieved. The method is convenient and rapid and high in security.

The invention discloses a simulation test device of transmittance of a battery pack euphotic layer and a test method thereof. Aiming to the defects of the traditional method for testing the transmittance of transparent glass and EVA (Ethylene-vinyl acetate copolymer), the transmittance of the transparent glass and an EVA composite layer of a battery pack can be more truly tested. The simulation test device of the transmittance of the battery pack euphotic layer comprises a white light source, a monochromatic light splitting system, a collimator, a reflector, a sample stage, a wiring column, a micro signal processing system and a terminal information processing system, wherein the monochromatic light splitting system, the collimator, the reflector, the sample stage and the wiring column are all arranged in a dark chamber, the collimator aligns to an exit slit of the monochromatic light splitting system, the reflector is arranged between the collimator and the sample stage, the wiring column is arranged besides the sample stage and is electrically connected with the micro signal processing system, the monochromatic light splitting system is electrically connected with the terminal information processing system, and the micro signal processing system is electrically connected with the terminal information processing system.

The invention discloses a method for deeply analyzing data based on a white list mechanism, comprising the following steps: building a white list, building a matching feature code list, reading a data file to be analyzed, inspecting whether a register item corresponding to the type of the file exists in the white list, reading the feature code of a file inspected by the white list, generating a block fingerprint, bonding the block fingerprint on data steam, transmitting the data steam to a storage node, receiving the data steam, checking and comparing the data steam, deciphering with a public key at a transmitting end and checking the block fingerprint, and judging that the decrypted block fingerprint is the same as the block fingerprint bonded on the data steam. The method has the beneficial effects that the defects in the prior art are overcome, the drawbacks of the existing file analyzing and filtering method are avoided, and the method for deeply analyzing the data based on the white list mechanism is provided.

The invention provides a spherical Ti3Al / TiAl two-phase alloy and a preparation method thereof, relating to a two-phase alloy and a preparation method thereof. The invention aims to solve the problems of difficult control on TiAl alloy components, high oxygen content and impurity content and poor sintering performance. The spherical Ti3Al / TiAl two-phase alloy is composed of Ti and Al; and the mass ratio of Ti to Al is (65-68):(32-35). The preparation method of the spherical Ti3Al / TiAl two-phase alloy comprises the following steps: 1, weighing Ti powder and Al ingots, and impregnating at the impregnation temperature of 660-720 DEG C for 0.5-3 hours to obtain a Ti-Al-TiAl3 three-phase compound body; and 2, preserving the Ti-Al-TiAl3 three-phase compound body at the temperature of 1100-1400 DEG C and the pressure of 40-80 MPa for 0.5-2 hours to obtain the spherical Ti3Al / TiAl two-phase alloy. The density of the two-phase alloy is higher than 98%. The invention is applicable to the fieldsof aerospace engines and automobile industry.

The invention relates to a method for estimating the SOH of a power supply. The method comprises the following steps: detecting voltage, temperature and current information of the power supply at the current moment, comparing the voltage, temperature and current information with a previously established database to obtain an SOC value SOCn of the power supply in the state at the moment and an SOH value SOCn-1 of the power supply in the previous state, and then estimating the SOH by means of SOH = 1- | SOCn-SOCn-1 |, wherein a relationship of the SOC with the working environment temperature, the working current and the voltage is stored in the database. As long as the working environment temperature and the working current of the current moment are collected, the voltage value in the current state is detected, then the detected value is compared with the database in which the voltage of the power supply is in one to one correspondence with the SOC in different working environment temperatures and different working current so as to obtain the SOC value of the power supply in the state of the power supply and the SOC value of the power supply in the previous state, and then the SOH value is calculated.

The invention discloses a modified ferrihydrite / hematite nano-rod core-shell structure compound light anode and an application thereof. A preparation method of the light anode includes the steps: S1 preparing hematite growth solution, placing a conducting substrate into the hematite growth solution, synthesizing a FeOOH film on the conducting substrate by a solvent thermal synthesis method, washing the FeOOH film, and drying the washed FeOOH film for standby application; S2 performing high temperature annealing on the conducting substrate acquired in the step S1, and cooling the conducting substrate to obtain the conducting substrate with the hematite film surface; S3 preparing ferrihydrite growth solution, placing the conducting substrate acquired in the step S2 into the ferrihydrite growth solution, heating mixture, washing the conducting substrate after reaction is completed, and drying the washed conducting substrate to obtain the modified ferrihydrite / hematite nano-rod core-shellstructure compound light anode. According to the method, a ferrihydrite thin layer is loaded on the surface of the hematite to prepare the core-shell structure compound light anode which is resistantto light corrosion and good in photoelectrochemical property and stability, and the compound light anode can be used for decomposing water to generate hydrogen and is high in catalytic efficiency andstable in catalytic effect.

The present invention relates to a method for simulating an image recording by an optical sensor of a coordinate measuring machine for inspecting a measurement object, comprising the following steps: providing a first data set representing a model of the measurement object, a second data set representing a model of an illumination of the measurement object, and a third data set representing a model of an optics of the optical sensor, and rendering an image stack on the basis of the first data set, the second data set and the third data set, wherein the image stack has a plurality of virtual images of at least one partial region of the measurement object, wherein each virtual image is rendered at least with a different second and / or different third data set. Furthermore, the present invention relates to a method for optimizing an image recording by a coordinate measuring machine.

The invention discloses a method for measuring the vascular diameter in a coronary angiography image based on depth learning. The method for measuring the vascular diameter in a coronary angiography image based on depth learning comprises the following steps: a DSA image processing module converts real-time acquired DSA image data into a data stream which can be processed by a subsequent module, and stores the data stream in a memory and sends the data stream to a depth network segmentation module. The depth network segmentation module segments the acquired DSA image data to distinguish the blood vessel pixel from the background pixel. The centerline extracting module extracts the blood vessel centerline from the blood vessel pixel image. The diameter calculation module calculates the measured diameter, the reference diameter and the stenosis rate of the blood vessel based on the segmented image and the blood vessel centerline. Compared with the PVA method, the invention has more objective results and avoids the differences between different doctors and different hospitals due to different interpretation methods. This method does not need manual intervention and is easy to operate.It can be used by doctors in coronary angiography and can provide objective reference for doctors to determine the degree of coronary stenosis.

The invention discloses a method for increasing a sulfur-gold recovery rate in tailings of an old tailing pond. The method comprises the following steps: preparing flotation pulp, inflating and stirring in an oxidation and reduction system, floating sulfur-gold ores and the like. According to the method disclosed by the invention, an ore pulp preparation method adopting a wetting and soaking mode is adopted, so that poor flotation effect due to the fact that a sample and water are not mixed uniformly is avoided; by adopting an inflating and strong-stirring method of the oxidation and reduction system, so that surfaces of ores are reduced in the oxidation and reduction system formed after sodium sulfide inflation; and by virtue of strong stirring, ore grains scrub with one another to expose fresh surfaces of sulfur-gold ores, so that the problem that the sulfur-gold recovery rate in tailings of the old tailing pond is low due to the fact that the sulfur-gold ores are not liable to float in a direct flotation or activation flotation method is effectively solved, and therefore, the recovery rate for sulfur-gold in tailings of the old tailing pond is greatly increased, reagent cost is reduced and resources are saved.

The invention discloses a double-shot molding mold for forming a double-face rubber coated product. The double-shot molding mold comprises a fixed mold (1), a movable mold (2), a movable mold carrier plate (21), a movable mold core (22), a slider carrier plate (23), an oil cylinder (24) and a movable cavity sliders (3). The invention adopts a following technical scheme: the movable mold carrier plate is provided with the slider carrier plate; two pairs of movable cavity sliders are slidably arranged between the slider carrier plate and the corresponding front and back walls of the movable mold core; the movable cavity sliders cooperate with four frame core molded surfaces of the movable mold core, are in symmetrical positions, and respectively comprise an A movable bone cavity and an A movable coating cavity, and a B movable bone cavity and a B movable coating cavity; a groove arranged on the movable mold carrier plate is provided with an oil cylinder, which is connected with the movable cavity sliders through a driving rod; and the fixed mold is provided with a pair of fixed bone cavity and fixed cover cavity. The movable cavity sliders alternately replace the movable bone cavity and the movable cover cavity to automatically form double-face rubber coating of a product, so as to reduce cost, improve efficiency and increase qualified rate of injection molding for the frame double-face rubber coated product.

The invention discloses a method for decomposing particle beam fluence into pencil beams based on an optimization algorithm. Particle beams are decomposed into small pencil beams based on the radiotherapy dose calculation demand of a pencil beam algorithm. The pencil beams are generally distributed in a Gaussian type. The total dose distribution is the summation of the dose distribution of each pencil beam. The method is the method by which the particle beam fluence decomposing problem in radiotherapy dose calculation of charged particles (such as proton and heavy ions) is solved, and the problem is solved by using the optimization algorithm. According to the method, the fluence distribution of the particle beams is obtained through measurement of a detector, then the particle beams are decomposed into a plurality of pencil beams based on the optimization algorithm, and the center position, size and weight of each pencil beam are obtained. The method is wide in applicability. Compared with the original distribution, the total fluence distribution after decomposition is higher in fitness; or under the same error condition, the number of the decomposed pencil beams is lower; and the radiotherapy dose calculation speed or precision of the particle beams can be greatly improved.

The invention discloses a fabricated highway bridge pavement safety monitoring analysis method based on the Internet of Things and big data, and the method comprises the steps: carrying out the statistics and numbering of each bridge floor connection region of a fabricated bridge, and laying a plurality of detection points at each connection point in each connection region of the bridge floor of the fabricated bridge; collecting a gray image of each monitoring point in each bridge floor connection area, obtaining an image gap distance of each monitoring point in each bridge floor connection area, and calculating an actual gap distance difference value of each monitoring point in each bridge floor connection area; meanwhile, counting position coordinates of all monitoring points in all bridge floor connecting areas of the fabricated bridge, analyzing the offset distance of all the monitoring points in all the bridge floor connecting areas, calculating the bridge floor comprehensive safety influence coefficient of the fabricated bridge, if the bridge floor comprehensive safety influence coefficient exceeds a set threshold value, carrying out early warning reminding, and notifying related personnel to carry out blocking and overhauling treatment. Therefore, the fabricated bridge is prevented from losing the best opportunity for maintenance, and potential safety hazards of people in travel are reduced.

The invention discloses a design method of a multifunctional touch sensor based on 4D printing. A capacitive sensor with a complex structure is manufactured by adopting a multi-material 3D printing method; and a shape memory polymer is designed and used to be added into the capacitive sensor. According to the invention, the defect that an open type capacitive sensor cannot sense the pressure of a rigid contact object is overcome, the touch sensing and electrochemical sensing functions which cannot be realized by a flat plate capacitive sensor are realized, and the real multifunctionality of the touch sensor is realized; and the open type capacitive sensor structure 3D printing sensor adopting coplanar design can be used for strain and pressure sensing and can also be used for high-sensitivity tactile sense and electrochemical sensing application, a 4D printing shape memory polymer is used as a substrate of the capacitor, in the 4D change process of thermal response shape memory, the capacitor can generate adjustable capacitance test sensitivity and measuring range change, and the intelligent sensor with the adjustable sensitivity and measuring range of 4D printing is realized.

The invention discloses a device for capturing fetal nucleated red blood cells (NRBCs) from parent bodies in vivo and in situ and application of the device. The device comprises a push-pull device, ahollow tube container, a puncture head and a polymer guide wire, wherein two ends of the hollow tube container are open, one end is connected with the puncture head, the push-pull device is placed atthe other end, the push-pull device makes seal contact with the inner wall of the hollow tube container and can slide along the inner wall of the hollow tube container, and the polymer guide wire penetrates through the puncture head and is connected with the bottom of the push-pull device. The device of the invention can make contact with peripheral blood of parent bodies in a shorter time, capture rare fetal NRBCs and capture the fetal NRBCs in vivo and in situ, the problems that a large amount of peripheral blood of parent bodies is drawn, low-efficiency methods such as centrifugation are used for enriching and separating the fetal NRBCs, which are time-consuming and expensive are solved, and the method is low in cost, not time-consuming and high in capture efficiency.

The invention discloses a nanometer porous gold composite electrode material modified by a nanometer metal oxide and a preparation method thereof. In the nanometer porous gold composite electrode material modified by the nanometer metal oxide, a nano-scale metal oxide is filled into pores of a nanometer porous gold film; the pore diameter of the nanometer porous gold film is 2-60 times the particle size of the metal oxide; the pore diameter of the nanometer porous gold film is 8-120 nanometers, and the porosity is 30-65 percent; the metal oxide is at least one metal oxide of Ti, Co, Sn, Ce, Eu and Dy; and the particle size of the metal oxide is 2-15 nanometers. The nanometer porous gold composite electrode material modified by the nanometer metal oxide has high structural stability and efficient catalytic performance, and is low in cost. The poisoning resistance is improved greatly, and the service life of an electrode is prolonged. The nanometer porous gold composite electrode material has the advantages of simple preparation process, convenience in operation, high repeatability, environmental friendliness and easiness in batch production.

The invention relates to an analog signal synchronous acquisition system, a corresponding method and a storage medium, the system comprises a plurality of oscilloscopes, one oscilloscope is a master oscilloscope, the other oscilloscopes are slave oscilloscopes, and the master oscilloscope and the slave oscilloscopes are in communication connection; the synchronous acquisition method executed by the master oscilloscope comprises the following steps: when the master oscilloscope starts acquisition of an analog signal, synchronously controlling the slave oscilloscope to start acquisition of the analog signal; and detecting and controlling the storage processes of the main oscilloscope and the slave oscilloscope for the respective acquired data according to the trigger condition of the main oscilloscope in analog signal acquisition by the main oscilloscope, and starting the next round of acquisition after the synchronization reaches a full-frame state. Because the communication connectionrelationship between the master oscilloscope and the slave oscilloscope is established in the plurality of oscilloscopes, the master oscilloscope can conveniently control the slave oscilloscope, thereby facilitating the starting of the slave oscilloscope to execute the same operation as the master oscilloscope in an analog signal collection process, and achieving an effect of synchronous collection.

The invention discloses a passion fruit-longan fruit vinegar and a brewing method thereof, and belongs the technical field of vinegar brewing. The fruit vinegar is prepared from the following components in parts by weight: 80 to 90 parts of pulp of passion fruit, 120 to 130 parts of pulp of longan fruit, 40 to 50 parts of water, 12 to 15 parts of longan shell powder, 25 to 30 parts of passion fruit shell powder, 10 to 15 parts of longan honey, 13 to 15 parts of liquid peanut extract, 0.21 to 0.25 part of brewer's yeast, 4 to 5 parts of acetic acid bacteria, 0.10 to 0.12 part of pectase, and 0.35 to 0.40 part of shell powder. The vinegar is prepared by beating pulp of longan fruits and pulp of passion fruits, adding other raw materials, and carrying out brewing. The fruit vinegar has a good taste, rich fragrance, excellent color and luster, and rich nutrients, and has a very good effect on removing skin spots.

The invention discloses a method and a device for updating map layer data. The method comprises the following steps: a, judging whether a new data set of a single layer which needs to be updated at present is empty or not, executing step b if the new data set of the layer is empty, if not, executing step c; b, if the data set currently used for rendering of the layer is not empty, emptying the data set currently used for rendering of the layer, and executing step d; c, comparing the new data set with the data set currently used for rendering of the layer, and deleting, adding or replacing datain the data set currently used for rendering of the layer according to a comparison result; and d, assembling the data in the data set currently used for rendering of the layer into corresponding mapformat data, and rendering the layer by using the map format data. By applying the technical scheme disclosed by the invention, the operation stability of the electronic map can be effectively improved.

The invention discloses litchi fruit vinegar and a preparation method of same and belongs to the technical field of vinegar brewing. The litchi fruit vinegar is prepared from, by weight, 110-115 parts of litchi content, 30-35 parts of water, 10-13 parts of litchi shell powder, 8-12 parts of litchi flower honey, 8-12 parts of tomato juice, 7-9 parts of carrot juice, 6-10 parts of soybean extract liquid, 0.20-0.23 parts of brewer yeast, 3-4 parts of acetic acid bacteria, 0.10-0.12 parts of pectinase and 0.32-0.36 parts of bentonite. The litchi fruit vinegar is prepared by pulping the litchi content, adding other raw materials and brewing the fruit vinegar. The litchi fruit vinegar is delicious, has good color and abundant nutrients and can effectively remove acnes.

The invention provides an ointment for treating allergic rhinitis. The ointment is prepared from the following raw materials in parts by weight: 10-15 parts of flower of yulan magnolia, 10-15 parts ofsmall centipeda herb, 10-12 parts of stem of armand clematis, 5-8 parts of root of Baikal skullcap, 5-10 parts of root of ural licorice, 5-10 parts of flower of florists chrysanthemum, 8-13 parts ofgentian, 8-13 parts of wild mint herb, 7-12 parts of Chinese dandelion herb, 6-9 parts of dried juice of Chinese aloe, 6-9 parts of bal loonflower root and 10-15 parts of matrix, wherein the matrix isvaseline or a mixture of glycerol and vaseline. The ointment for treating the allergic rhinitis can clear away heat and toxic materials, promote blood circulation, dredge orifices, expel wind and relieve pain, relieve symptoms such as nasal obstruction, headache, edema and the like of patients, has little side effect on treating the allergic rhinitis, is simple to use, can be applied to two sidesof the wing of nose, is convenient to carry, can avoid side effects of drugs and sequelae of surgical methods, is not easy to relapse, and treats both symptoms and root causes.

The invention discloses an Al@MnO2 composite material and a preparation method and application thereof. The Al@MnO2 composite material is synthesized by using a simple one-step chemical method, and MnO2 nano particles are uniformly distributed on the surface of an Al sheet. The simple one-step hydrothermal method is adopted, no surfactants are added, and no complicated instruments are adopted, so that traditional metallic vapor, ball milling and others are avoided, small pollution and easy reaction control are achieved, and the preparation method is widely applied to industrial production. The microwave absorption parameters of the composite are tested through a vector network analyzer, the microwave reflection loss of the composite is calculated through a classical coaxial line theory, and the infrared stealth performance of the composite material is tested by using a dual-band emissivity measuring instrument; and it is shown by results that the Al@MnO2 composite microwave-absorbing material has excellent microwave absorption performance and infrared stealth performance.