114results about How to "The modification method is simple" patented technology

The invention provides a method for controlling a bucket-wheel reclaiming machine with material measurement and calculation, comprising the steps as follows: a current detection module (2) detects corresponding weak alternating current voltage signal from the line current of a bucket-wheel motor current circuit (1); the weak alternating current voltage signal is transmitted to a current / voltage signal conversion module (3) so that the rectification, voltage-stabilization and amplification treatment of the signal is carried out; the voltage signal which is processed by rectification, voltage-stabilization and amplification is input to a reclaiming automatic control module (6) which controls the actions of a revolving mechanism (19) and a truck feeding mechanism (20) according to the change of the voltage signal; and the actions of the revolving mechanism (19) and the truck feeding mechanism (20) cause the bucket-wheel motor current circuit (1) to change. The invention also relates to a reclaiming automatic control device. As the reclaiming automatic control method of the invention is adopted and the reclaiming automatic control device of the invention is installed, the functions of automatic control of reclaiming, flux display and alarming when the flux exceeds the arranged value can be quickly and simply realized at low cost.

The invention discloses a preparation method of localized surface plasmon resonance (LSPR) microfluidic chip. The preparation method includes preparation of microfluidic chip, and chip modification. The preparation method has the advantages of easily-available materials, low cost, repeatable use, simple modification method, good reproducibility and good stability, can be directly used for rapid detection of various biological samples, and has potential wide application in life sciences and medical clinical detection.

The invention discloses a car or train running system and a housing body thereof. The housing body is fixed above a railway or a road and comprises a top, two side edges connected with the top, solar cells and an energy storage device, wherein, the distance between the top of the housing body and the railway or the road is more than the height of a train or a car; the bottom edges of the two sideedges of the housing body are fixed at two sides of the railway or the road; the solar cells are arranged on the top and the two side edges of the housing body or the whole housing body and are connected with the energy storage device; and the energy storage device supplies electric energy to the traveling car or train in the housing body. By adopting the system and the housing body of the invention, the car or the train can run at a high speed with lower energy consumption.

The present invention discloses a preparation method of a slow-release phosphorus fertilizer, and a preparation method that is used for a coating material that is used for the slow-release phosphorus fertilizer. The slow-release phosphorus fertilizer is a coated fertilizer that is coated by a coating outside the phosphorus fertilizer; the coating material is made of improved attapulgite. For the improvement of the attapulgite, the attapulgite is improved by dipping the aqueous solution of sodium carbonate or phosphoric acid; then the improved attapulgite is separated, dried and milled for dispersion.

The invention provides an electrochemical sensor detection method of trac heavy metal ions, and relates to a sulfydryl functionalized graphene modified glassy carbon electrode, and preparation and application of the electrode, and belongs to the technical field of heavy metal detection and electrochemical analysis. The method specifically comprises the following steps: modifying sulfydryl functionalized graphene on the surface of the glassy carbon electrode so as to manufacture a sensor, and detecting the trace heavy metal ions by using an electrochemical differential pulse stripping voltammetry method. The method can be directly applied to rapid electrochemical detection on the heavy metal ions, and has the advantages of high sensitivity, wide linearity range, low detection limit and the like.

The invention relates to a preparation method of an anti-static polyester material. The polyester material is improved by a modified carbon nanotube; and based on good electrical conductivity of a carbon nanotube, the carbon nanotube is modified with the method by adding a metal oxide and a dispersing agent to obtain a modified carbon nanotube with good dispersing effect, low cost and good electric conduction effect. In a melting compounding modification method, the thermal stability in the polyester material processing process is improved by adding a high molecular composite aid, and a polyester composite material with high performance and low volume resistance of less than 107(omega)cm is obtained. The method provided by the invention has simple technology and is easy to operate; the material performance is good, and the cost is relatively low; and the method has great application value and is suitable for industrial production.

The invention discloses a navigation-hydraulic motor-driven device comprising an outer shell and a sealed inner shell. A fluid channel in a navigation direction is arranged between the outer shell and the inner shell; the outer shell is provided with a pressure lead-in port and a pressure lead-out port which are internally and externally communicated with each other; the fluid channel is respectively communicated with the pressure lead-in port and the pressure lead-out port on the outer shell; and a surface path of the outer surface of the outer shell in the navigation direction is longer than that of a fluid path in the fluid channel so that the flowing velocity of the fluid flowing through the surface path of the outer surface is faster than that in the fluid channel. The invention can improve the speed of the navigation-hydraulic motor-driven device with energy source conservation.

The invention discloses a method for surface-modifying polyurethane by using a zwitterionic polymer and modified polyurethane. The method comprises the following steps: (1), reacting a polyurethane film with diisocyanate and then reacting with L-cysteine or sulfhydryl fatty alcohole; (2), dropwise adding a sulphobetaine-containing norbornene polymer and a photoinitiator into a product obtained in the step (1), and preparing the zwitterionic polymer-modified polyurethane by virtue of a click reation. Experiments prove that the polyurethane modified according to the method for surface-modifying the polyurethane by using the zwitterionic polymer, disclosed by the invention, is high in surface hydrophilicity, resists platelet adsorption, is low in cytotoxicity, is beneficial to endotheliaal cell adhesion and proliferation, and has better blood compatibility and biocompatibility. The modification method disclosed by the invention is simple.

The invention relates to the biotechnical field, and concretely relates to an HSV1-H129-BAC and a mutant thereof. The above virus and the mutant thereof carry a bacterial artificial chromosome (BAC), can keep low-copy number self-replication in specific bacteria, and solve the disadvantages of unable long-term preservation, unable self-replication and inconvenient molecular biologic mutation reconstruction due to too large herpes virus genomes. The virus and the mutant thereof also carry a GFP reporter gene, and substantially develop the application prospect of the herpes virus as a tool virus. The invention also provides a construction method of the H129-BAC and the mutant thereof. The method allows H129 to be reconstructed in order to obtain H129-BAC and endows the H129-BAC with more mutant types; and the construction method, the H129 and the mutant thereof form a genetic modification platform with high application possibility.

The invention relates to a method for changing number of tube passes of a tube type heat exchanger. As for traditional methods, an entire heat exchanger or a tube bundle and a tube box is / are replaced, the changing workload is high, and the costs are high. The method includes changing a tube plate and the tube box, the changing workload is low, and the costs are low. A groove or a protruded rib is arranged on the tube plate of the tube bundle of the heat exchanger, the groove or the protruded rib is required to be partially or totally filled, and a novel groove or a novel protruded rib is added. The structure of the tube box is required to be changed in two aspects that a partition board on the inner side is changed, existing partition boards are required to be partially or totally removed, and novel partition boards can be added according to requirements as well; and a position of a tube nozzle on the outer side is changed. By means of the method for changing the heat exchanger, the number of tube passes of the heat exchanger can be changed, the tube bundle of the heat exchanger or the entire heat exchanger is not required to be replaced, and changing costs and construction workload can be substantially reduced.

The invention belongs to the field of electrochemical electrode materials and especially relates to a preparation method of a high-activity electrode with two precious metals one-step modifying commonmetal nanocomposite surface. The preparation method comprises the following steps: firstly preparing a Ni / graphene composite material and coating the surface of a processed glassy carbon electrode with the Ni / graphene composite material, and drying at room temperature to obtain an Ni / graphene electrode; then using the Ni / graphene electrode as a working electrode, using a Pt plate as a counter electrode, using a saturated calomel electrode as a reference electrode, depositing Au and Pt through one-step reduction onto the surface of graphene-loaded Ni nanoparticles in an acid solution of a precursor containing Au and Pt under the condition of constant potential so as to prepare an AuPt / Ni / graphene electrode with two precious metals one-step modifying common metal nanocomposite. The electrode has high catalytic activity to a glycol oxidation reaction in an alkaline medium. The prepared electrode of the invention has remarkable advantages in both aspects of catalytic activity and cost, and has a wide application prospect.

The invention relates to a cycloidal gear tooth profile modification method based on the logarithm, a cycloidal gear and an RV reducer and belongs to the technical field of cycloidal gear machining. The modification quantity in a logarithmic relationship with the cycloidal gear tooth profile generating line is superposed on a tooth profile curve of the standard cycloidal gear, the modification quantities of all position points of the cycloidal gear tooth profile can be adjusted by changing the modification coefficient, the logarithmic base and the logarithmic power, and further the curve shapeof the modification function and the modification quantities of all the position points of the cycloidal gear tooth profile can be controlled. The modification method is simple and easy to implement,the main working segment tooth profile, engaged with a pin gear, of the modified cycloidal gear is closer to the standard cycloidal gear tooth profile, certain engagement radial gaps exist between the non-main engagement segments close to the tooth tops and the tooth roots, manufacturing and mounting errors are compensated advantageously, storage of lubricating oil is facilitated, and the transmission property and the engagement quality of the cycloidal gear can be improved.

The invention discloses an in-situ passivation repairing agent of cadmium-arsenic combined pollution farmland soil, a preparation method and an application, and belongs to the technical field of the farmland soil heavy metal pollution repairing. A proportion of ground phosphate rock and steel slag is 1:4-1:1. Exchangeable form Cd content can be reduced to 26.76%-29.54%, and residual form Cd content is improved to 90.52%-113.75%. Exchangeable form As content is reduced by 29.41% maximally, and residual form As content is improved by 16.82%. Raw materials of the ground phosphate rock and the steel slag of the agent are cheap and easily obtained. A modification treatment method is simple, and environment-friendly. The agent can be used as a phosphatic fertilizer and a composite mineral fertilizer in agricultural production, and is capable of improving nutrient conditions of the farmland soil while used as a repairing agent. Compared with a process of independently adding the steel slag and the ground phosphate rock, the ground phosphate rock is capable of reinforcing capacity of exchangeable form cadmium reduced by the steel slag, and the steel slag is capable of remedying a defect ofthe ground phosphate rock that passivation capability to arsenic is poor, the repairing effect is improved, and a risk of farmland crops is reduced in the greater degree.

The invention discloses a modification processing method for converter gas quenched steel slag stability. The method includes: fine grinding a limestone modifier and gas quenched steel slag, mixing, remelting to 1000-1150 DEG C, and incubating for 0.5-1.5 hours to conduct modification processing. The present invention also discloses a limestone as a stability modifier for the converter gas quenched steel slag. The modifier is a limestone. The main ingredients of the limestone include 47.63% of SiO2, 33.28% of CaO, and other ingredients like 3.52% of Fe2O3 and 1.82% of MgO. The steel slag stability modifier used in the invention is wide in raw material sources, low in cost, simple in the steel slag modification method, safe and reliable. In the modified steel slag, the content of F-CaO can be reduced to 0.012%-0.058%, therefore the security application scope of the steel slag is expanded.

The invention discloses mytilus coruscus foot adhesive protein and encoded polynucleotide thereof, and further discloses a preparation method of the mytilus coruscus foot adhesive protein. Compared with the prior art, the invention has the advantages that: the mytilus coruscus recombinant foot adhesive protein i.e. a waterproof biological adhesive can be rapidly obtained, the functional peptide segment of the foot adhesive protein can be continually expressed through saccharomyces cerevisiae S78 after the recombinant plasmid of an adhesive protein functional fragment is obtained, and the modified mytilus coruscus recombinant foot adhesive protein has better adhesion performance. A polypeptide product has the advantages of simple modifying method and simple operation, and only a small amount of tyrosinase is needed.

The invention discloses a vehicle-mounted short-distance communication network based quickly-converged ant colony routing establishment method. The establishment method comprises the following steps that nodes receive heartbeat information of surrounding nodes and determine distances and running directions of the surrounding nodes according to the heartbeat information; selection bands are determined from source nodes to destination nodes step by step; numbering the selection bands and nodes in the selection bands; information elements of source nodes and middle nodes are initialized according to the numbers; an improved ant colony algorithm is utilized to establish routing; optimal sending power are allocated to the source nodes and the middle nodes. The vehicle-mounted short-distance communication network based quickly-converged ant colony routing establishment method fully utilizes characteristics of a V2X network to improve the ant colony algorithm, invalid walking of artificial ants is decreased, convergence speed of the ant colony algorithm is greatly improved, and the routing establishment method adapts to the V2X network.

The invention discloses a self-relieving non-return-oil oil atomizer which is formed by refitting a traditional mechanical oil atomizer. The self-relieving non-return-oil oil atomizer is characterized in that a tiny metering hole is arranged in the traditional mechanical oil atomizer, the tiny metering hole is communicated with a low-pressure oil return side spring cavity and a high-pressure working side oil containing groove; a valve is arranged and is a check valve, two sides of the check valve are provided with a low-pressure oil return side and a high-pressure working side respectively, and the tiny metering hole enables fuel oil to flow in the direction from the low-pressure oil return side to the high-pressure working side; a blocking plug is utilized to block an oil return opening matched with the valve to enable the tiny metering hole and the valve to have the one-direction flowing function. Or the self-relieving non-return-oil oil atomizer is directly formed according to the technical scheme, the mechanical oil atomizer has a non-return-oil function and can relieve pressure automatically, an oil return pipeline device is achieved, and the oil atomizer can stably and reliably operate.

The invention provides a transformed buried oil storage tank and a transforming method thereof. The oil storage tank is provided with a steel tank body. A bottom layer, which is formed by laminating fiber cloth, spraying resin and curing the resin, is arranged on the inner wall of the tank body. A middle layer is arranged on the inner wall of the bottom layer. The middle layer adopts a hollow structure, which is formed by compounding 3-D spacer fabrics, woven integrally from glass fiber, through resin. The surface layer, which is formed by laminating fiber cloth, spraying resin, and curing the resin, is arranged on the inner wall of the middle layer. The surface protection layer made of electrostatic resin is arranged on the inner wall of the surface layer. The transforming method comprises the following specific steps of S1, clearing the oil storage tank; S2, spraying bonding resin; S3, preparing the bottom layer of the oil storage tank; S4, preparing the middle layer of the oil storage tank; S5, preparing the surface layer of the oil storage tank; S6, preparing the protection layer on the surface of the oil storage tank; and S7, mounting a leakage detection system. The oil storage tank has high corrosion resistance and wear resistance, and the service life is long; and the transforming method is simple and flexible, and the service life of the oil storage tank is prolonged.

The invention discloses a polyionic liquid modified nano material, a preparation method thereof and application of the material in enrichment of phosphorylated peptide in a sample containing phosphorylated peptide. The preparation method comprises the following steps: (1) polymerizing a vinyl-modified substrate material, vinyl and organic phosphonate functionalized ionic liquid to obtain a polyorganic phosphonate ionic liquid functionalized material; and (2) acidifying and hydrolyzing the polyorganic phosphonate ionic liquid functionalized material, and then combining with metal ions to obtainthe affinity material of the polyorganic phosphonate functionalized ionic liquid. The functionalized material prepared by the method is easy to separate, has better hydrophilicity, metal ion immobilization capability, acid and alkali resistance, stability and good specific selectivity, and is suitable for enrichment and purification of phosphorylated peptides of complex biological samples. The material has a wide application prospect in the field of biomedicine.

The invention relates to a poultry house with variable cross sections, which comprises a front end gable, a rear end gable, a side wall and a ceiling, wherein the front end gable is provided with a ventilation window; the ventilation window is provided with a wet curtain; a fan is arranged on the rear end gable; the side wall is provided with a side window; the poultry house is internally providedwith poultry cages; the long axis of the poultry house variable cross sections is perpendicular to the front end gable, the front end gable is parallel to the rear end gable, the poultry cages are arranged in columns parallel to the long axis, and the longitudinal section areas of the poultry house with variable cross sections, parallel to the front end gable, is gradually reduced along the direction from the front end to the rear end of the poultry house. The invention also relates to a poultry house group consisting of a plurality of poultry houses with variable cross sections, a method fordesigning the poultry house with variable sections, and a method for reconstructing a poultry house with a constant cross section. According to the poultry house with variable sections, the internaltemperature difference of the poultry house is small, the heat of the poultries at the front and rear ends of the poultry house is exchanged uniformly, and the total energy consumption of the poultryhouse for temperature controlling and heat exchanging is low; the poultry house group is compact in arrangement and small in occupied area; the design method and the reconstruction method are simple and convenient, low in cost, and can obtain the poultry house with uniform internal heat exchange and low energy consumption.

Metallofullerene derivatives, a preparing method thereof and an energy storage and conversion method of the derivatives are disclosed. The derivatives are obtained by modifying the surface of metallofullerene with derivatives of a nitroxide free radical micromolecule that is 2,2,6,6-tetramethylpiperidinooxy through an addition reaction. The metallofullerene derivatives are radiated by adopting ultraviolet light, and then participate catalytic oxidation reactions, the energy storage rate and energy conversion rate are high, storage of ultraviolet light energy and conversion from the light energy to chemical energy are achieved, and the energy storage and conversion method and process are simple. An electron transfer process of the metallofullerene derivatives radiated by the ultraviolet light can be analyzed by a conventional test instrument, the electron transfer situation can be reflected by changes of electron paramagnetic signals, and sensitivity is high. The time scale in the electron transfer process can be detected as an expansion.

The invention relates to a method for promoting protein renaturation by increasing the charge density of a microspherical medium through secondary ligand modification, belonging to a protein renaturation technology in the technical field of biology. A ligand of the microspherical medium is secondarily modified on the basis of primary modification of the microspherical medium, so that the charge density of the microspherical medium with epoxy groups on the surface is increased. The electrostatic repulsion action between the microspherical medium and a protein molecule with the same charge number is further enhanced through modifying the microspherical medium again by using the ligand with higher charge density, so that the aggregation of proteins is effectively inhibited, and the renaturation yield is greatly increased. Compared with a primarily-modified microspherical medium assisted protein renaturation method, the method not only has the characteristics of low medium consumption and high protein renaturation yield, but also has better tolerance for environments such as high salinity and the like.

The invention belongs to the field of electrochemical electrodes, and relates to a preparation method of a low-cost and high-activity trimetal nanocomposite electrode. The preparation method comprisesthe steps that a Pt1Ag2-carbon black composite is prepared, the surface of a glassy carbon electrode is coated with the Pt1Ag2-carbon black composite, room-temperature drying is conducted, and a Pt1Ag2-carbon black electrode is obtained; and the Pt1Ag2-carbon black electrode is taken as a working electrode, Pd is reduced and deposited to the surfaces of Pt1Ag2 nanoparticles, the trace Pd-modifiedPt1Ag2-carbon black electrode is prepared, and the electrode has the high catalytic activity on an ethylene glycol oxidation reaction. The electrode prepared through the method has the advantages ofbeing high in catalytic activity and low in cost and has a good application prospect.

The invention discloses a metal fullerene derivative and a preparation method thereof as well as a paramagnetic property regulation method and application thereof. The metal fullerene derivative is a type of metal fullerene derivative obtained by carrying out addition reaction and modifying azobenzene nitrogen oxygen free radical micromolecules on the surface of the paramagnetic metal fullerene. Different light irradiates the metal fullerene derivative; the paramagnetic property of the metal fullerene can be regulated through the change of relative positions between the metal fullerene and the nitrogen oxygen free radical molecule dual-spinning centers; the metal fullerene derivative provided by the invention is novel in structure, has photoswitch property and is capable of simply, conveniently, efficiently and sensitively regulating the paramagnetic property of the metal fullerene; the technical problems of low sensitivity, complex operation and one-way change of signals of regulation manner in the existing temperature reduction or chemical modification manner for regulating the paramagnetic property of the metal fullerene can be solved; the metal fullerene derivative can be used as a molecular light function switch and can be applied to all optical networks and optical switching.

The invention relates to the technical field of nuclear power station primary loop main pumps. The invention discloses leakage abnormity processing system and method for a main pump of a nuclear powerstation. The system comprises a main controller, a nuclear power station main pump and a liquid collection tank, wherein the nuclear power station main pump comprises a second shaft seal and includesa leakage pipeline which is used for connecting the second shaft seal with the liquid collecting tank; an impurity isolation valve is arranged on the side, close to the second shaft seal, of the leakage pipeline. At least one water filling isolation valve is arranged on the leakage pipeline between the impurity isolation valve and the liquid collection tank; the liquid collecting tank is providedwith a water supplementing isolating valve used for controlling reverse water filling and exhausting, and the main controller is used for controlling the water supplementing isolating valve and at least one water filling isolating valve to be opened when the impurity isolating valve is closed, so that reverse water filling and exhausting can be conducted on the leakage pipeline through the liquidcollecting tank. According to the system, the liquid collection tank can be used for fully and reversely filling water into the leakage pipeline for exhausting, and meanwhile, impurities in the liquid collection tank can be isolated through the impurity isolation valve.

The invention provides a heavy metal ion electrochemical sensor detection method, and relates to a salicylic acid functionalized graphene modified electrode and a heavy metal detection method thereof, and belongs to the technical field of heavy metal detection and electrochemical analysis. The method specifically comprises the following steps that salicylic acid functionalized graphene is modified on the surface of a glassy carbon electrode so as to manufacture a sensor, and the heavy metal ions are detected by using an electrochemical differential pulse stripping voltammetry method. The method can be directly applied to rapid electrochemical detection on heavy metal ions, and has the advantages of high sensitivity, wide linear range, low detection limit and the like.

The invention relates to an electrode bimetal modification method. An electrode made in the invention is used for an electrolytic oxidation reaction of alcohol. The method comprises the following steps: preparing a gold precursor solution, preparing a platinum precursor solution, carrying out electrode surface modification, and using the electrode in the electrocatalytic oxidation reaction of ethanol. The electrode modification method is simple, the electrode is stable, the Pd electrode obtained after the modification of an extremely low amount of Au and Pt has a far higher electrocatalytic activity in the ethanol oxidation reaction in an alkaline solution than a Au, Pt and Pd electrode, a Au modified Pd electrode and a Pt modified Pd electrode; the modification amount of Au and Pt is extremely low, so the application amount of Au and Pt is saved; and the electrode made in the invention has a very high catalytic activity in the ethanol oxidation reaction in an alkaline medium, and has a very obvious modification effect.

The invention provides a method for preparing composite heat-conducting silicone grease from carbon nitride modified carbon nanotubes. A nitrogen-rich compound is adopted as a carbon nitride precursor, carbon nitride grows on the surface of a carbon nanotube in situ through a thermal polycondensation method, a carbon nitride modified carbon nanotube is prepared, and then the carbon nitride modified carbon nanotube is mixed with other heat-conducting filler and silicone oil to prepare the heat-conducting silicone grease. The modification of the carbon nitride can enhance the interface performance of the carbon nanotubes, improve the dispersity and addition amount of the carbon nanotubes in the silicone oil, and facilitate the formation of a heat-conducting passage in the heat-conducting silicone grease, thereby improving the heat-conducting capability of the heat-conducting silicone grease. On the other hand, the carbon nitride is used as an insulating material, so that the increase of the conductivity of the heat-conducting silicone grease caused by the carbon nanotubes can be remarkably reduced, and the preparation of the high-heat-conductivity and high-insulation heat-conducting silicone grease is facilitated. The method for modifying the carbon nanotubes by using the carbon nitride is simple and effective, low in cost and beneficial to industrialization.

The invention discloses a modification method for basic magnesium sulfate whiskers. The modification method comprises the following steps: adopting deionized water and absolute ethyl alcohol to prepare KH-570 hydroalcoholic solution; regulating the pH (Potential of Hydrogen) of the hydroalcoholic solution by acetic anhydride, and carrying out sealing stirring hydrolysis and room-temperature standing; after the whiskers are added, carrying out stirring reaction, drying and high-temperature activation under a sealing condition. The modification method for the basic magnesium sulfate whiskers isvery simple, a great quantity of toxic or organic solvent does not need to be used, so that environment pollution is not basically caused, a modification effect is good, the modified basic magnesium sulfate whisker have good hydrophobicity, the hydrophobicity is obviously improved, and therefore, the modification method has a wide application prospect.

The invention relates to a boiler capable of adjusting flue gas temperature of a furnace outlet. The boiler comprises a furnace, a furnace outlet communicated with an upper opening of the furnace, and a front platen superheater, a rear platen superheater and a high temperature superheater which are mounted inside the furnace outlet. A combustor set is mounted below bottom edge of furnace arch, that is, at four corners of central furnace; far-away type over-fire-air nozzles are mounted above the combustor set, or without mounting of the over-fire-air nozzles; temperature regulating air nozzles are mounted above the far-away type over-fire-air nozzles and are connected with hot air connection ducts and cold air connection ducts at the rear thereof, wherein the hot air connection ducts are provided with hot air regulating dampers and externally connected with secondary-air preheaters, the cold air connection ducts are provided with cold air regulating dampers and externally connected with blowers, and the temperature regulating air nozzles, the hot air connection ducts and the cold air connection ducts form a three-way pipeline. The temperature of the air sprayed in can be flexibly adjusted, the sprayed-in positions are located at areas where pulverized coal is basically completely combusted, and dust area is not increased.