75results about How to "The results are reproducible" patented technology

The present invention relates to a preparation method of carbon quantum dots with adjustable fluorescence colors, and belongs to the technical field of nanometer materials. According to method, citric acid or a citrate is adopted as a carbon source, a nitrogen-containing compound is adopted as a nitridation agent, hydrogen peroxide is adopted as an oxidant, a hydrothermal synthesis method is adopted to obtain an aqueous solution of carbon quantum dots emitting blue or green fluorescence under ultraviolet light excitation, reaction conditions are easily controlled, and the method is suitable for scale production. The prepared carbon quantum dots have advantages of adjustable fluorescence color, high yield, high quantum efficiency, good result reproducibility and the like, wherein the product can be directly used for tumor cell labeling and live cell imaging labeling. According to the present invention, only the one reactant is required, the raw materials are easily-available and non-toxic, the production process does not require special protection, the reaction condition is easily controlled, and the obtained carbon quantum dots have advantages of high yield, high quantum efficiency, good result reproducibility and the like; and the method has characteristics of high yield, simple preparation process, low cost, easy scale production and the like.

The invention provides a detection apparatus and a detection method for a photocatalyzed gas degradation rate. The apparatus comprises a completely sealed detection box; the top of the detection box is provided with an openable transparent box cover, the side wall of the detection box is provided with a self-sealing cable interface, an inlet valve and an air pressure balancing valve, a multifunctional rack is arranged in the detection box, a gas detector and ultraviolet lamps are fixed on the top of the multifunctional rack, an elevating sample bench is slidably connected onto the multifunctional rack below the gas detector, a convection blower is fixed at one side of the multifunctional rack, and the gas detector is connected with a computer arranged out of the detection box through a transmission cable passing through the self-sealing cable interface. The photocatalyzed gas degradation detection apparatus and the method provided in the invention have the advantages of a broad detection scope, high detection precision, good repeatability of results and capacity of obtaining a continuous smooth variation curve of gas content and time, are applicable to detection of gas degradation under photocatalysis and can accurately and conveniently evaluate degradation capability of photocatalyst products to gas.

The invention relates to a method for preparing a lithium silicate coated lithium ion battery ternary layered anode material and belongs to the technical field of inorganic materials. According to the method disclosed by the invention, the lithium silicate coated lithium ion battery ternary layered anode material is prepared by virtue of simple coprecipitation, hydrothermal and high-temperature solid-phase sintering reaction. The method disclosed by the invention is simple in synthetic process, high in production efficiency and suitable for large-scale production. Moreover, according to the method disclosed by the invention, raw materials needed by the reactants are readily available, non-toxic and low in cost, special protection is not needed in the production process, the reaction conditions are easily controlled, and the obtained product has the advantages of high yield, high result repeatability and the like. Compared with uncoated materials, the lithium silicate coated lithium ion battery ternary layered anode material prepared by the method disclosed by the invention has the advantages that the specific capacity, cycling stability, rate and other electrochemical performances of the battery are greatly improved.

The invention discloses a rail roadbed settlement measurement method based on mileage and image measurement, and relates to the field of settlement measurement. According to the rail roadbed settlement measurement method, the rail roadbed sparse three-dimensional reconstruction is completed through image feature matching and binocular intersection, the adjacent frame sparse reconstruction point splicing is achieved through a mileage measurement device and feature matching, and therefore automatic monitoring and rapid measurement of rail roadbed settlement are completed. The rail roadbed settlement measurement method has the advantages of being low in cost, high in work efficiency, result repeatability and measurement accuracy, and the like.

The invention relates to a preparation method of a lithium ion battery high-cycle capacity voltage fading-resistant lithium-rich layered cathode material, belonging to the technical field of new energy sources. As that method of the invention utilize only the high-abundance elements of the earth, From the viewpoint of its intrinsic structure, transition metal ion Ni occupation in Li-rich layered cathode material was controlled by calcination, so that one part occupied 2c site and 4h site in the C2 / m phase of Li-rich layered cathode material, and one part occupied in the R. 3m phase, so as to improve the voltage decline and capacity decline of the Li-rich layered cathode material in the charge and discharge process, and improve the lithium ion transport capacity of the Li-rich layered cathode material itself. The method of the invention is a coprecipitation solid-state sintering method, which has the advantages of simple synthesis process, high production efficiency and the like, and issuitable for large-scale production.

The invention discloses a preparation method of a lithium ion conductor coated spinel lithium manganate positive electrode material, which adopts two methods: coating through a hydrothermal method and coating through a direct stirring method. A lithium ion conductor (lithium zirconate, lithium titanate and lithium silicate) coating layer and a main-phase spinel lithium manganate positive electrode material are formed simultaneously in a lithiation reaction process so as to improve the bonding strength between the coating layer and the main-phase spinel lithium manganate positive electrode material, the thickness of the coating layer is uniform, the rate capability and cycling stability of the lithium ion battery are greatly improved, and particularly, the long-range cycling stability and the high rate capability are improved. According to the preparation method, the rate capability, cycling stability and high-temperature property of the spinel lithium manganate positive electrode material can be improved; the synthesis process is simple, the production efficiency is high, and the positive electrode material is suitable for large-scale production; raw materials needed by reactants are easily available and have no toxicity, and the cost is low; no special protection is needed in the production process; reaction conditions can be controlled easily; and the obtained product has the advantages of high yield, good result repeatability and the like.

The invention discloses a positive electrode composite material for a lithium sulfur battery. The positive electrode composite material comprises, by weight, 4 parts of bentonite and 3-6 parts of elemental sulfur. The positive electrode composite material for the lithium sulfur battery adopts the compounding of bentonite and the elemental sulfur, and the bentonite has large specific surface area and strong adsorption capability, and can well immobilize the elemental sulfur; after the bentonite is compounded with the elemental sulfur, the problem of the loss of active substances due to a too high amount of polysulfide dissolved in an electrolyte in the charge and discharge process of the lithium sulfur process is improved, thereby the battery has good cycle performances, high discharge specific capacity and stable cycle performances; and the bentonite greatly reduces the cost of the positive electrode material as a new matrix of the positive electrode material for synthesizing the lithium sulfur battery. The bentonite has no pollution, so the positive electrode composite material has good economic and environmental benefits, and is suitable for popularization application.

The invention relates to a preparation method of a lithium zirconate-coated ternary layered cathode material of a lithium ion battery, and belongs to the technical field of new energy sources. Coating is realized by a hydrothermal method or a room-temperature stirring method; and the method specifically comprises the following three steps: preparation of an oxalate precursor, preparation of a ZrO2-coated oxalate precursor and preparation of a lithium zirconate-coated ternary layered cathode material. According to the method, the bonding strength between a coating layer Li2ZrO3 or Li4ZrO4 and a ternary cathode material of a main phase can be improved; the coating layer is uniform in thickness; and the rate capability and the cycling stability of the lithium ion battery, especially the rate capability are significantly improved. The method provided by the invention is simple in synthetic process, high in production efficiency and suitable for large-scale production, and has the advantages that the materials required by a reactant are available, nontoxic and low in cost; special protection is not needed in the production process; the reaction condition is easy to control; and the obtained product has the advantages of high yield, good result repeatability and the like.

The invention discloses an aeolotropic magnetic high polymer composite film material and a preparation method of the material and belongs to the technical field of magnetic high polymer composites. The composite film material comprises an FeCo magnetic nano particle and a polymer matrix. The method comprises the steps of: 1) adding the FeCo cubic magnetic nanoparticle into a high molecular polymerfor uniform stirring to form a mixture, and 2) spin-coating a glass sheet or a silicon sheet with the obtained mixture to form a film, putting the prepared film in a magnetic field for magnetic particle self-assembly, and performing curing at a certain temperature to form the aeolotropic magnetic high polymer composite film. A technology is simple; film thickness is easy to control; and the material contains an aeolotropic self-assembly nano rope, is good in directionality, high in production efficiency, good in mechanical property and has a potential application in the high and new technicalfield of flexible magnetic devices and the like.

The invention relates to a traditional Chinese medicinal composition for treating cervix diseases. The traditional Chinese medicinal composition comprises the following components in part by weight: 35 to 45 parts of bark of tree of heaven, 25 to 35 parts of lightyellow sophora root, 25 to 35 parts of tree peony bark, 25 to 35 parts of olibanum and 0.8 to 1.2 parts of borneol, wherein the lightyellow sophora root has the same weight as the tree peony bark and the olibanum. The invention also provides a method for detecting the traditional Chinese medicinal composition and a method for preparing a gelling agent of the traditional Chinese medicinal composition. In the traditional Chinese medicinal composition, on a basis of ensuring that the lightyellow sophora root has the same content as the tree peony bark and the olibanum, the content of bark of tree of heaven and the content of borneol are adjusted, so that the traditional Chinese medicinal composition fully utilizes the effects ofvarious raw materials to achieve the effects of clearing away heat, eliminating dampness, removing blood stasis and promoting regeneration of the tissue and has more exact efficacy. In the method forpreparing the gelling agent of the traditional Chinese medicinal composition, all components are extracted respectively to prepare the gelling agent, so that the method is simple and suitable for industrial production, has high extraction rate of drug effect ingredients and low cost. In addition, the invention also provides the method for detecting the traditional Chinese medicinal composition, which can effectively identify components and content of the traditional Chinese medicinal composition and has little disturbance and high result repeatability.

The invention relates to a device and method for testing the dynamic sound tightness of a closure member of a whole vehicle, and the device consists of an air leakage testing system and a supersonic detection system. The air leakage testing system comprises a fan, an air supply flexible pipe, a connecting plate, a silicone tube, and a micromanometer, wherein the fan, the air supply flexible pipe, the connecting plate, the silicone tube and the micromanometer are connected sequentially. The supersonic detection system comprises a supersonic signal generator, a supersonic detector, and a flexible detector. After the air leakage testing system is connected with a to-be-tested vehicle, the air leakage testing system supplies air to the vehicle quantitatively and enables the pressure on the surface of the closure member to reach a specified value. At this moment, a sealing strip of the closure member of the whole vehicle is in a dynamic sealing state, and then the supersonic detection system detects the supersonic leakage of the closure member of the whole vehicle and evaluates the dynamic sealing effect. The device is easy to implement, is low in cost, is simple in test conditions, and is good in result repeatability.

The invention relates to a preparation method of a wavelength adjustable fluorescent carbon dot and an application of the fluorescent carbon dot in mercury ion detection and belongs to the technical field of nanomaterials. The method takes valine as a raw material and obtains a carbon dot aqueous solution with long wavelength and an adjustable fluorescence color by a hydrothermal synthesis method. The method only requires phosphoric acid for adjustment, raw materials are easy to obtain and nontoxic; special protection is not required in a production process; reaction conditions are easy to control; and the obtained carbon dot has the advantages of high productivity, high quantum efficiency, good result repeatability and the like. The method has the characteristics that the method has high productivity and low cost and facilitates mass production, and a preparation technology is simple and the like. The carbon dot prepared by the method can be used for high selectivity and high sensitivity detection of mercury ions, and a limit of detection reaches 1.5*10<-9>Mol / L.

The invention relates to a human chromosome P16 gene detection kit. Particularly, the detection kit comprises a probe used for detecting a P16 gene and a hybridization buffer. The human chromosome P16 gene detection kit can be used for accurately and quickly detecting the abnormity of the human chromosome P16 gene.

The invention discloses a prevention and control method for field thrips and Tospovirus diseases. The method comprises the steps of carrying out field selection, carrying out pretreatment, carrying out transplanted disease control, carrying out disease control at the preliminary stage of flourishing growth, and carrying out harvesting. According to the method, the virus propagation thrips and the Tospovirus diseases propagated by the thrips can be effectively controlled, and the comprehensive control efficiency can reach 76.3% to 84.3%. According to the method, the prevention and control steps are simple, the design is reasonable, efficient and safe, the implementation performance is high, the prevention and control efficiency is high, the result repeatability is good, the yield per unit of crops and the income of farmers can be increased under the condition of not increasing prevention and control cost, the technical applicable range is wide, and the economic and ecological benefits are remarkable.

The invention provides a method for efficiently and comprehensively preventing and controlling sesame diseases. The method comprises the following steps: (1) selecting a disease-resistant variety; (2) selecting a high-quality farmland; (3) seeding in good time, performing rational close planting and performing crop rotation; (4) performing seed coating treatment; (5) preventing and controlling diseases in a seedling stage; (6) preventing and controlling diseases in a flowering stage; (7) harvesting in good time. The method can be used for effectively preventing and treating main diseases such as wilt of sesame, stem wilt and leaf wilt, the comprehensive prevention and control effect can be up to 77.37%-89.5%, and the yield is improved to 85.9-93.6%. The method is simple in comprehensive prevention and control step, reasonable in design, efficient and safe, high in practicability, high in prevention and control efficiency, good in result repetitiveness and low in cost, and can be used for increasing the sesame unit production and increasing incomes of farmers under the condition of not increasing the prevention and control cost, and is wide in technical application range and obvious in economic benefits and ecological benefits.

The invention discloses a preparation method and application of a spherical carbon electrode material, and belongs to the field of new energy material preparation. The method is characterized in that raw materials are uniformly mixed and are then subjected to ultrasonic dispersion treatment; obtained phenolic resin microspheres are dried and are then put into inert gas for carbonization to obtain the spherical carbon electrode material, or after the carbonization, activating treatment is performed in carbon dioxide to obtain the spherical carbon electrode material. The prepared spherical carbon electrode material is used for preparing a lithium ion battery negative electrode material. The carbon electrode material standard spherical structure obtained by the method has small particle size, uniform granularity and large specific surface area (964m<2>g<-1>); the electrode material obtained after activation in carbon dioxide at high temperature is of a standard spherical structure, and has uniform granularity, no agglomeration, ultrahigh superficial area (2798.8794 m<2> / g), uniform hole distribution and average pore size of 2.0nm; the spherical carbon electrode material is applied to the lithium ion battery negative electrode material; the specific capacity is high; the decay is slow; the electrochemical performance is stable.

The invention discloses a schistosoma haematobium recombinant fusion protein ShSAP and application of the schistosoma haematobium recombinant fusion protein ShSAP in immunodiagnosis of schistosomiasis. The schistosoma haematobium recombinant fusion protein ShSAP can be subjected to large-scale standardized batch production through a genetic engineering technology as well as is stable in antigen quality and good in repeatability. The schistosoma haematobium recombinant fusion protein ShSAP can be both used for immunodiagnosis of schistosomiasis haematodia and schistosomiasis mansoni and has extremely high sensitivity. The schistosoma haematobium recombinant fusion protein ShSAP is single in antigen component, ShSAP-ELISA has very good specificity for immunodiagnosis of the schistosomiasis and does not generate cross reaction with serums of patients with other parasitic diseases, and the schistosoma haematobium recombinant fusion protein ShSAP has a wide application prospect.

The invention relates to a preparation method of a sodium ion conductor coated lithium-rich manganese-base stratified anode material, belonging to the technical field of new energy resources. The preparation method comprises the step of coating by virtue of a normal-temperature stirring method and particularly comprises three steps: preparing a carbonate precursor, preparing an oxide-coated carbonate precursor, and preparing the sodium ion conductor-coated lithium-rich manganese-base stratified anode material. According to the method, the rate capability and cycling stability of the lithium-rich manganese-base stratified anode material can be improved, the voltage attenuation of the lithium-rich manganese-base stratified anode material can be inhibited, and the separation of oxygen can bereduced. The method is simple in synthetic process, high in production efficiency and suitable for large-scale production. The method has the advantages that the raw materials required by reactants are easily available and non-toxic, the cost is low, the special protection is not required in the production process, the reaction conditions are easily controlled, and the obtained product is high inyield and good in result repeatability.

The invention relates to a method for preparing a human chromosome 7 enumeration probe and preparation of a human chromosome 7 enumeration kit by using the same. A human chromosome 7 can be accurately and quickly counted by applying the human chromosome 7 enumeration probe and the corresponding kit.

The invention discloses a method for determining the content of catechuic acid in tea and tea products. The method comprises the following steps: preparing a gradient standard solution by adopting resorcinol instead of catechuic acid reference substance, preparing a to-be-tested solution from tea or tea products, determining the absorbance of the gradient standard solution through a hydrochloric acid-vanillin developing system under the wavelength of 510nm, establishing a standard curve taking molarity as an x-coordinate and establishing a regression equation and then determining the absorbance of the to-be-tested solution, resolving the unit concentration of resorcinol in the to-be-tested solution from the regression equation, then calculating the content of catechuic acid in tea and tea products according to the dilution factor, resorcinol unit number contained in the unit relative molecular mass of the catechuic acid reference substance, and correction factor. The resorcinol used is stable in property, easily available and low in price, the problems that the resorcinol reference substance is limited in sources, expensive in price and high in determination cost can be solved, and the method is simple to operate, accurate in results and good in repeatability.

The invention relates to a BCR gene and ABL gene detection probe and a preparation method thereof. The method includes the following steps that a selected BAC clone for a BCR gene is at least one of RP11-1026A5, RP11-165G5 and CTD-2079I4, a selected BAC clone is at least one of CTD-2302P22, CTD-2037J11 and CTD-2509L4, a selected BAC clone for an ABL is at least one of CTD-2037L19, RP11-21G10 and CTD-2526G20, the DNA of a plasmid is obtained, and marking is conducted. The invention further discloses a reagent kit provided with the BCR gene and ABL gene detection probe. By obtaining the optimal BCR gene and ABL detection probe through screening, signal line counting is accurate and quick, and result repeatability is good.

A high-efficiency comprehensive method for preventing and controlling sesame diseases, comprising the following steps: (1) selecting disease-resistant varieties; (2) selecting superior farmland; (3) timely sowing, reasonable dense planting, and crop rotation; (4) seed packaging (5) prevention and control of diseases at the seedling stage; (6) prevention and control of diseases at the flowering stage; (7) timely harvesting. The invention can effectively prevent and control major diseases such as sesame blight, stem point blight and leaf blight, the comprehensive prevention and control effect can reach 77.37%-89.5%, and the yield can be increased by 85.9%-93.6%. The present invention has simple comprehensive prevention and control steps, reasonable design, high efficiency and safety, strong implementability, high prevention and control efficiency, good repeatability of results, and low cost. The technology has a wide range of applications, and the economic and ecological benefits are remarkable.

The invention relates to the fields of antibody engineering and antiviral medicine, and relates to a method for rapidly and effectively measuring the antiviral function of recombinant human anti-hepatitis B virus antibody. The invention utilizes the technology of sinking virus complexes to establish a new method for detecting and evaluating the anti-virus ability of molecules. The method is to detect the anti-virus and anti-infection ability of the molecule by detecting the ability of the test molecule to induce a sinking pathogenic complex in serum; the pathogen is a virus. The method can be used to quickly detect the ability of antibodies and other anti-infection drugs to clear virus and control virus infection. The method is simple to operate and the results are reproducible, and it is a supplement to the existing antiviral drug functional detection and evaluation methods. a new choice. The invention also relates to a detection reagent for antiviral infection activity, a sinking pathogenic complex occurring in the detection process and the application of the above detection method.

The invention discloses a method for rapidly detecting a dextran sulfate immobilized amount in a blood lipid adsorbent. According to the method, an acid reagent is added to stabilize a light absorption value after reaction step completion of toluidine blue and dextran sulfate, so that the experimental result is reliable. Moreover, the reagent usage amount in the detection process is small, the calculation is simple, the result repeatability is excellent, and the accuracy is high.

The invention discloses a carrier TiO2 and a preparation method as well as application thereof, an Au10 cluster supported catalyst, and a preparation method as well as application thereof. The carrier TiO2 is shaped like a sphere, wherein the surface of the sphere consists of multiple columnar structures. The preparation method of the carrier TiO2 comprises the following steps: adding Ti powder into hydrochloric acid, heating in a sectionalized way, centrifuging, washing and drying, thus obtaining the carrier TiO2, which is used for preparing the Au10 cluster supported catalyst. The Au10 cluster supported catalyst is prepared from an active component Au10 cluster and the carrier TiO2, wherein the mass ratio of Au to the carrier TiO2 is 0.005-0.02. The characteristics of high activity and high selectivity are achieved; the stable Au10 cluster supported catalyst can be obtained by adjusting an evaporating temperature after dipping, and the catalyst shows higher activity in catalyzing styrene oxidation; the preparation method of the carrier TiO2 is simple and easy to operate, stable in product and good in result repeatability, and has a good application prospect.

The invention provides a glass coated stable lithium manganate battery electrode material and aims to solve the problem that existing spinel lithium manganate is easy to change in structure at a high temperature and is poor in reversibility and other modification methods are not obvious in effect. The high-rate capability of the material is improved. According to the technical scheme, a preparation method comprises the following steps: preparing spinel lithium manganate powder by a two-step sintering process; then preparing a lithium silicate sol solution; mixing the spinel lithium manganate powder into the lithium silicate solution; dispersing the powder into spheres and then forming a gel; and then sintering the gel in a high-temperature sintering furnace, quickly cooling and crushing the gel to obtain the high-temperature stable lithium manganate battery electrode material coated with lithium silicate glass on the surface.

The invention discloses a method for detecting the in-vitro activity of recombined human interleukin-12 by using a cell with an interleukin-12 receptor and application. The method comprises the following steps of (1) taking out the frozen cell with the interleukin-12 receptor from a liquid nitrogen tank, and performing recovery activation cultivation till the logarithm growth period is reached; (2) inducing the cell with the interleukin-12 receptor through a recombined human interleukin-12 standard substance under different concentrations to generate gamma interferon to obtain the concentration value ED50s of the recombined human interleukin-12 standard substances; (3) inducing the cell with the interleukin-12 receptor through a recombined human interleukin-12 protein to be detected under different concentrations to generate the gamma interferon to obtain a concentration value ED50r of the recombined human interleukin-12 protein to be detected; and (4) obtaining the in-vitro activity Pr of the recombined human interleukin-12 protein to be detected according to a formula Pr=Ps*ED50s / ED50r.

The invention relates to a Li<21>Si<5> / C composite material, a preparation method and an application, which belong to the field of lithium-rich anode materials for lithium ion batteries. Silicon nanoparticles and lithium plates are heated for lithiation at 200 DEG C to 230 DEG C under a stirring condition, so that Li<21>Si<5> nanoparticles, the grain size of which is 100 to 280 nanometers, are prepared, the Li<21>Si<5> particles are then ball-milled and mixed with acetylene black, and a spark plasma sintering method is then utilized to prepare a dense block. The novel composite material prepared by the method has excellent electrochemical properties.

The invention discloses a primer pair used for identification of traditional Chinese medicine bulbus fritillariae thunbergii, and applications thereof. The sequences of the primer pair are represented by P1, SEQ ID NO.1-2; P2, SEQ ID NO.3-4; and P3, SEQ ID NO.5-6. The primer pair possesses following advantages: 1, the primer pair can be used for identification of single sample directly, an application method is simple in operation, result is accurate, and application range is wide; and 2, the primer pair is high in specificity, result repeatability, and sensitivity, and is suitable to be used for producing detection kits.