98results about How to "The operation method is simple and convenient" patented technology

The invention belongs to a testing method of permeability of porous materials, in particular to a testing method of external permeability of a fiber fabric surface and a testing mold. The method comprises the following steps: firstly, laying fiber fabric to be tested into n numbered steps on a mold panel, and then, sealing to form a mold cavity; carrying out vacuum pumping treatment, measuring and recording distance Ln between each step surface and the mold panel, injecting fluid for testing by utilizing vacuum negative pressure, and recording time tn for the flow front of the fluid for testing to reach each step surface; and drawing a linear relation graph of tn and the square of Ln, fitting to obtain a slope k, and then, calculating the external permeability K of the surface of the fiber fabric to be tested according to the formula. The testing mold comprises a mold panel and a storage tank, wherein the mold panel is fixedly connected above the storage tank to form a sealed containing cavity, micropores communicated with the sealed containing cavity are arranged on the mold panel, and a liquid flow channel communicated with an external liquid injecting system is arranged at the bottom of the storage tank. The invention has the advantages of simple operation, high accuracy, strong applicability, low cost, and the like.

The invention discloses a method for image feature deep learning and perceptibility quantification through a computer, and the method comprises the following steps: A, collecting street images; B, building a scoring model, carrying out the crowdsourcing scoring of the perceptibility of a part of collected street images, carrying out the sorting according to the value of perceptibility, and collecting the scoring data; C, carrying out the training of a convolution neural network classifier through the scoring data collected at step B, and carrying out the prediction and scoring of the perceptibility of the remaining images through the trained convolution neural network classifier; D, predicting the street visualization perceptibility on a map, and giving the score estimation of different perceptibility values of streets. The method is simple and convenient, can greatly shorten the training time in executing a task, guarantees the stable and reliable overall performances, can achieve the effective recognition of the image perceptibility and the large-scale quantitative perceptibility analysis, greatly enlarges the application range, and is good in application stability, applicability and practicality.

The invention provides a water-soluble rare earth doped gadolinium sodium tetrafluoride fluorescent marked nano-crystal and a preparation method thereof, and belongs to the technical field of chemical synthesis of microwave polyalcohol. The rare earth fluorescent nano-crystal is divided into two forms of dual-dope and tri-dope, wherein the dual-dope refers to dope ytterbium and one rare earth selected from erbium, thulium and holmium in gadolinium sodium tetrafluoride, and tri-dope refers to dope ytterbium thulium and holmium in gadolinium sodium tetrafluoride. The preparation method comprises the steps of using ammonium fluoride as a fluorine source, sodium chloride as a sodium source, and rare earth chloride as a rare ion source, using polyethyleneimine as surface modification macromolecules, and reacting in a microwave reactor with polytetrafluoroethylene lining. With the adoption of the method, the reaction efficiency is high, the operation is convenient and fast, the environmental pollution is avoided, the product yield is high, and the process repeatability is high; the gadolinium sodium tetrafluoride nano-crystal substrate with stable thermodynamic property, even material phase, good diffusion, high water-soluble ability, and high fluorescence luminous efficiency is obtained by adjusting the ratio of gadolinium ions and fluorine ions; and the product is suitable for multicolor biomarkers.

The invention provides a method for measuring the content of free polysaccharides in A, C, W135 and Y cluster meningococcal polysaccharide combo, wherein the method comprises the following steps: 1) sampling: respectively taking 1ml of a meningococcal polysaccharide combo to be measured and a corresponding derivative solution of the meningococcal polysaccharide combo to be measured as a sample 1 and a sample 3; 2) centrifuging: additionally placing the meningococcal polysaccharide combo and the corresponding derivative solution of the meningococcal polysaccharide combo to be measured in centrifuge tubes; adding a sodium deoxycholate solution into each centrifuge tube, performing ice bath for 30 minutes and adding a hydrochloric acid solution; fully oscillating, centrifuging and collecting the supernatant of each centrifuge tube as a sample 2 and a sample 4; 3) calculating the concentration of the polysaccharides; and 4) calculating the content of the free polysaccharides. The method provided by the invention can measure the content of free polysaccharides in A, C, W135 and Y cluster meningococcal polysaccharide combo accurately and simply, so that the quality of products is evaluated.

The invention discloses a rubber forming method and a rubber forming mould of a high-curvature high-flanging sheet metal part. The rubber forming mould comprises an accommodating box, a forming die, a pressing plate, a supporting plate and rubber pads, wherein the non-working surface on the inner side of the forming die is connected to the inner wall of one side of the accommodating box; a moulding cavity is formed between the working surface on the outer side of the forming die and the inner wall of the accommodating box; the outlines of the pressing plate and the supporting plate are smaller than the outline of the moulding cavity; the inner sides of the pressing plate and the supporting plate are matched with the working surface on the outer side of the forming die. The rubber forming method comprises the following steps: placing the accommodating box on a workbench of a hydraulic machine, placing a plurality of rubber pads with equal height inside the moulding cavity, and placing the supporting plate on the upper surfaces of the rubber pads so as to make the surface height of the supporting plate consistent with the height of the forming die; overlapping the pressing plate and the supporting plate, and clamping a flanging area of an unfolded blank; downwardly pressing the pressing plate by using hydraulic forming equipment, fitting the flanging area of the unfolded blank with the working mould surface of the forming die, and forming.

The invention discloses a modularized analog simulation experiment device achieving rapid installation, excavation and disassembly and an operating method of the modularized analog simulation experiment device. The experiment device comprises a plurality of experiment frame modules which can be combined on a foundation base to form a cube structure; each experiment frame module comprises an adjusting base beam installed on the foundation base, the two sides of the adjusting base beam are each vertically provided with a vertical arm, and the top ends of the vertical arms are connected through a cross beam; baffles are installed between every two corresponding vertical arms at different heights, the module spaces formed through partition of the baffles are densely provided with excavation layer replacing devices, and the experiment frame modules are connected and fastened through side baffles installed on the side faces of the vertical arms; the experiment frame modules are filled with similar analog experiment materials, the outer surfaces of the excavation layer replacing devices are marked with scales, the excavation layer replacing devices can be pulled outwards, and excavation of the analog simulation experiment materials is achieved by pulling the excavation layer replacing device outwards. The invention further discloses the operation method of the modularized analog simulation experiment device. The modularized analog simulation experiment device has the advantages that the size is adjustable, and installation, laying, excavation and disassembly are rapid.

The invention discloses an automatic tube bundle penetrating device and method for tube-shell type heat exchanger equipment. The device comprises an ascending-descending platform and a fixed platform;a movable baffle is disposed on the ascending-descending platform; and movable supports are disposed on the fixed platform. The method includes the steps of 1, installation of the movable supports onthe fixed platform; 2, lifting of a heat exchanger tube bundle; 3, lifting and centring of a heat exchanger barrel; 4, ice making in the barrel; 5, tube bundle penetration; and 6, lifting away of thebarrel. According to the automatic tube bundle penetrating device and method, the structural design is reasonable, the operation method is simple, the barrel of a heat exchanger is placed by arranging the ascending-descending platform, the tube bundle of the heat exchanger is placed by arranging the fixed platform, the arrangement height of the barrel can be adjusted whenever possible according to demands, the tube bundle penetration process of the heat exchanger equipment with different sizes can be safely and conveniently finished, meanwhile the intervals and the opening sizes of the movable supports can be adjusted adaptively, the application range is wide, and the automation degree of the whole tube bundle penetration process is high.

The invention discloses a tool and a method for keeping full opening of a wax type thermostat. The wax-type thermostat is used for keeping the wax-type thermostat in a full-opening state. The wax-typethermostat comprises a support, a main valve, a main valve push rod, a main valve spring and paraffin, and the tool is a U-shaped structure formed by bending a rectangular thin steel plate. The toolhas the advantages that the structure is simple, the preparation is easy, the reutilization can be realized, and the operation method is rapid and convenient.

The invention discloses malachite green hapten, malachite green artificial antigen and preparation methods of the malachite green hapten and artificial antigen. The malachite green hapten retains the feature structure of malachite green, and has active arms which are derived from different microdomains of the structure of malachite green, have different electron cloud densities and different carbon chain lengths, are suitable to be coupled with macromolecule carriers, and are amide linkage with amino or carboxyl tail end. The malachite green artificial antigen prepared with leucomalachite green hapten has very high specificity and sensitivity when applied to detection of the residual quantity of leucomalachite green and malachite green, and is high in accuracy and recovery. Moreover, the methods are simple, the cost is low, and a fast, sensitive, economical and efficient malachite green immunodetection method is established.

The invention relates to a microfluidic two-aqueous phase droplet flow method for simple and rapid detection of urea and a device thereof. The method includes the steps of: taking a mixed solution ofa neutral red indicator, a to-be-detected sample and polyethylene glycol as the internal aqueous phase, and adopting a urease and glucan mixed solution as the external aqueous phase. According to themicrofluidic device, the shearing action of the two-phase fluid is utilized to form 10-30 nano-liters of two-aqueous phase droplets, enzymatic reaction is carried out on urea and urease in the droplets and at the interface, the product ammonium carbonate enables the neutral red indicator in the droplets to discolor, and according to the discoloration degree, whether the sample contains urea can bejudged and the urea content can be analyzed, one sample detection only needs 10-20sec, and the enzyme-containing external aqueous phase solution can be recycled. The method provided by the inventionhas the advantages of wider detection range, low operation cost, simplicity, rapidity and environmental friendliness.

The invention relates to the field of gene engineering, in particular to a reagent for simultaneous extraction of DNA and RNA, a method for simultaneously extracting the DNA and the RNA and application of the reagent. The reagent comprises a natural saccharide compound, a heavy metal salt compound, a neutral salt compound, a thiocyanic acid compound, an alcoholic compound, an organic solvent compound, a phenolic compound, N-lauroylsarcosine and a salt compound used for adjusting the acidity or alkalinity of a solution. The reagent for extracting the DNA and the RNA is optimized, protection to the DNA and the RNA is enhanced, the whole extraction process can be conducted at room temperature, cooling treatment does not need to be conducted, and the needs of follow-up second-generation sequencing and third-generation sequencing can be completely met. The operation method is simple and rapid, the quantity demand of samples is less, and the purity and the concentration of extracted DNA and RNA are high.

The invention provides an enzyme-linked immunosorbent assay kit for detecting a porcine epidemic diarrhea virus antibody, wherein the kit takes a recombinant protein of a porcine epidemic diarrhea virus N protein as an envelope antigen and comprises the following components: a coating solution, a blocking solution, a serum diluent, a substrate coloring solution and a stop solution. The PEDV ELISAdetection kit disclosed is used for detecting the PEDV antibody, and the PEDV ELISA kit has good sensitivity and specificity after being compared with the PEDV detection kit sold in the market. Meanwhile, the amount of the sample required by the kit is small, the operation method is simple and rapid, the cost is low, the kit is suitable for the diagnosis of the porcine epidemic diarrhea in the livestock breeding industry and the detection of the PEDV pathogen in the laboratory, and has great significance in the development of the breeding industry.

The invention provides a method for raising solanaceous vegetable seedlings by grafting. The method comprises the steps of cutting off certain internodes, below the fifth nodes and above cotyledons, of stock seedlings; drilling an inserting port downwards in a stock cut, wherein the depth of the inserting port is 5mm-10mm, and the inclination of the inserting port is 30 degrees to 60 degrees; inserting a scion with one or two true leaves into the inserting port, and enabling the basal part of the stem of the scion to make full contact with a cambium of the inserting port of the stock; mulching the surface of a plant with a film to carry out sealing and moisture retention after grafting, and maintaining the air humidity to be above 95% inside the film for seven to ten days to promote the inserting port of the stock and the scion to coalesce and survive; opening the film to ventilate and harden seedlings gradually after the inserting port coalesced. According to the method for raising the solanaceous vegetable seedlings by the grafting, small seedlings (stock seedlings and scion seedlings) of short seedling stages are utilized, and the grafting is carried out by adopting a top grafting method which is simple and fast in operation. Through the adoption of the method, seedling cultivating time can be shortened, and seedling cultivating cost can be reduced.

The invention discloses a method for analyzing plant coverage by utilizing Image J and Photoshop in the technical field of vegetation research, which comprises the following steps of: S1, acquiring a plant coverage image: setting a quadrat with the length of 1m and the width of 1m in grassland vegetation, and shooting from the right above by using digital equipment; S2, cover degree image processing: carrying out image geometric distortion correction and image background interference removal on the shot image through Photoshop software; and S3, plant coverage measurement: after the image is subjected to image geometric distortion correction and image background interference removal, the image enters Image J software for analysis. Image J software and Photoshop software are combined for data analysis, the software analysis processing flow is simplified, image geometric distortion caused by oblique shooting of a coverage image is corrected, the requirement for measurement while shooting is met, the result is more accurate and objective, and therefore the purpose of rapidly quantifying the coverage change of the earth surface plants is achieved.

The invention discloses a blocking mechanism simulation force measuring apparatus which includes a pedestal which includes three channel steels; right ends of the three channel steels are provided with a case body assembly which is provided with a force measuring support therein; the force measuring support is provided with a force measuring pin on the left side of an upper end thereof, and the case body assembly is provided with a fixing seat on the right side of an upper plane, and the force measuring pin and the fixing seat are intended for fixing a to-be-tested product during tests; left ends of the three channel steels are provided with a support assembly which is provided with two guide rods thereon which are parallel to each other, and one ends of the guide rods are provided with a top plate and the other ends of the guide rods are provided with an installing plate; two semi-arc pulling force shafts are oppositely arranged with one arranged on the force measuring support and the other arranged on the support assembly; a digital display force measuring device with two ends are in respective connection to the two semi-arc pulling force shafts; and a hydraulic jack is installed in the support assembly. According to the invention, the apparatus can meet demands for testing the opening and closing force of the blocking mechanism. The apparatus is characterized by reliable positioning, high structural strength, small deformation, easy mounting and dismounting, easy carrying, and repeatable usage.

The invention relates to a method for preparing fluorescent carbon quantum dots by taking metformin as a precursor. The method comprises the following steps: step 1, carrying out hydrothermal reactionon metformin hydrochloride and dithiodibenzoic acid to generate a carbon quantum dot stock solution; step 2, filtering out impurities from the carbon quantum dot stock solution to form filtrate; step3, after the filtrate is subjected to heating and magnetic stirring treatment, attaching carbon quantum dots in the filtrate to a first filter membrane through the first filter membrane; and step 4,drying the first filter membrane to obtain carbon quantum dot powder. The purity of the final product is higher than that of fluorescent carbon dots with natural organic matter as a carbon source, thereaction process and structure can be analyzed, no toxic reagent is added, the operation method is simple and convenient, and finally the fluorescent carbon quantum dots with high fluorescence emission intensity can be prepared on a large scale.

The invention discloses a drone type tree insect-proof coating spraying device. The spraying device comprises a drone, a connecting column is arranged at the lower end of the drone, a box body is arranged at the lower end of the connecting column, a surrounding type spraying mechanism is arranged at the front end of the box body, and an anti-collision mechanism is arranged on the spraying mechanism; a liquid storage mechanism for storing insect-proof coating is arranged in the box body, the liquid storage mechanism is connected with the spraying mechanism, and a stirring mechanism for preventing insect paint from solidifying is arranged in the liquid storage mechanism; and an adjusting mechanism for keeping the center of gravity is arranged in the middle of the box body, and a plurality ofevenly-distributed buffering mechanisms are arranged at the bottom end of the box body. The spraying device has the beneficial effects that the spraying device can conduct spraying around a tree trunk, a rack can rotate outwards, after reaching a proper position, the spraying device automatically rotates inwards to return to an initial position, and at the moment, the rack surrounds the outer side of the tree trunk, so that the spraying range is enlarged, and the working efficiency is improved.

The invention discloses a method and a device for pose measurement and a storage medium. The method comprises the following steps: acquiring a plurality of object photos taken at different positions and pose parameters of a shooting device when taking photos; constructing a virtual three-dimensional scene according to the object photos, and matching the virtual three-dimensional scene with a realthree-dimensional environment according to the pose parameters of the shooting device; and calculating pose parameters of an object according to the position information of the object in the real three-dimensional environment. According to the method and device for pose measurement and storage medium, remote measurement of the object pose can be achieved, operation is very simple and convenient, no measurement personnel are required to climb, and the risk of measurement is effectively eliminated.

The invention discloses a barrel plating device. A left support plate and a right support plate, a control box body, a drum toothed plate on the left support plate, a driving toothed plate on the left support plate, and evenly arranged on the drum toothed plate The circular hole is also provided with a metal isolation cover with one end inserted into the circular hole, an insulating tube is arranged on the outside of the metal isolation cover, and a driving motor and a rotating motor are arranged in the control box. A conductive ring is embedded in the toothed disc, the end of the metal isolation cover is inserted into the circular hole and pressed against the conductive ring, and a cathode conductive wire is arranged on the control box body. The invention has a simple structure, greatly improves the efficiency of electroplating, ensures the stability and uniformity of electroplating, and solves the technical deficiencies of low efficiency, poor quality and high cost in the traditional electroplating method for larger parts in the traditional technology. At the same time, the invention also discloses an operation method of the barrel plating device, which is simple and quick to operate, and can greatly improve the efficiency and quality stability of electroplating.

The invention discloses a full video intelligent security instrument and management system, and an implementation method thereof. The management system comprises a box body, a column base, a license plate recognition device, a camera, a human body infrared sensor, an ultrasonic detector, an LED screen, a voice prompt device, a fill light, a state prompt light, a network interface, a central processor, a management computer, and a switch. The implementation method of the management system comprises the steps of: the ultrasonic detector triggering the license plate recognition device and the human body infrared sensor when detecting vehicles; transmitting information of recognized license plates and captured face images to the management computer through the switch after being processed by the central processor; the management computer managing the information matching of the transmitted vehicle license plates and the face images, and displaying the occupancy of the parking space throughthe LED screen; and paying by using a mobile phone APP after parking. By adopting the full video intelligent security instrument and management system and the implementation method thereof, the operation method of parking and driving off is simple and quick. The driver does not need to get off the vehicle for operation, thereby improving the efficiency of parking and facilitating the unattended and the safety of people and vehicles in the parking lot.

The invention belongs to the field of rock test, and in particular relates to a method for testing soft soil micro disturbance. The method comprises the following steps of: flattening the ground of a region to be tested; then horizontally arranging a soil body disturbance device in the region to be tested, wherein heavy hammer weights are arranged on the soil body disturbance device; selecting the heavy hammer weight having the corresponding mass according to disturbance energy required by a soil body, and arranging the selected heavy hammer weight at the corresponding height and enabling the selected heavy hammer weight to fall down so as to make disturbance on the soil body in the region to be tested; taking away the soil body disturbance device, and spreading yellow sand on the soil body in the region to be tested; and finally testing the soil body in the region to be tested according to the K30 test to obtain a K30 coefficient of the soil body in the region to be tested. The method has the advantages that disturbance at different degrees can be applied to the soil body on the site, so that the tested soil body parameters can better accord with actual data; the distortion of the soil taking test in a laboratory and the boundedness of the test after construction are effectively avoided; the soil body disturbance device is simple in structure; and the operation method is simple and convenient.

The invention discloses a method and a device for volume measuring of crack soil. The method includes steps: (1), taking a circular wire mesh, symmetrically binding four copper wires on the edge of the wire mesh, taking a voluminal beaker, pouring into liquid paraffin, and placing the beaker containing the liquid paraffin on a balance tray; (2), weighing testing soil sample mass by a balance; (3) adjusting a horizontal extension valve and a vertical extension valve to enable the wire mesh to be totally immersed in the liquid paraffin, reading the balance, and recording integral mass; and (4) adjusting the vertical extension valve to enable an auxiliary device to be lifted, placing a soil sample on the wire mesh, reading the balance, recording the integral mass of the beaker, the liquid paraffin, the copper wires and the soil sample. The beaker containing the liquid paraffin is placed on the balance tray, one end of each copper wire is bound on the edge of the wire mesh, the other end of each copper wire is bound on a horizontal supporting rod which is connected with a vertical supporting rod, and a support is connected below the vertical supporting rod. The method is easy, operations are simple and convenient, and volume measuring of crack soil sample is higher in accuracy.

The invention discloses a roll bending forming die and a forming method of a large-curvature semi-arc-shaped pipe orifice reinforcing part. The forming die comprises a forming cam, a forming concave wheel and a driven concave wheel; the forming cam, the forming concave wheel and the driven concave wheel are respectively mounted on three different rollers of an asymmetric three-axis roller bendingmachine; during forming, blank positioning is carried out firstly, then the relative position relation between the forming cam, the forming concave wheel and the driven concave wheel is set, then thethree-axis roll bending device is used for forming, and finally, the pipe orifice reinforcing part passes between the three synchronous rotating rollers and continuously generates axial and longitudinal plastic bending deformation, so that the required cross-sectional shape and the radian shape are obtained.

The invention discloses an electrician training testbed simulation method and system. The method comprises the following steps of: modeling a laboratory environment, a test table structure and all thecircuit principal models of an electrician training testbed so as to obtain a simulation model of the electrician training testbed; setting the simulation model, and establishing a scene setting module, a scene display module and a scene operation module of the simulation model so as to obtain a simulation model capable of selecting circuit principles; and verifying the obtained simulation modelto obtain a correct simulation model. The method and system are supplemented with existing entity equipment, do not generate dangerous situations in simulation software, do not cause equipment damagein using processes, and do not need to be arranged and maintained after teaching, and can complete online teaching and management. The method is simple, rapid and convenient to use.

The invention relates to the technical field of tower barrels, and particularly relates to a tower barrel convenient to maintain during high-place operation. The tower barrel comprises a tower barrelbody, wherein a base plate is arranged on the lower portion of the tower barrel body; a supporting frame is arranged on the surface of the base plate; a butt joint groove is formed in the surface of the supporting frame; a traction rod is inserted into the butt joint groove; a damping spring is arranged between the bottom surface of the traction rod and the bottom surface of the butt joint groove;the outer side of the traction rod is sleeved with a sealing ring; and the sealing ring is fixed to the inner wall of the butt joint groove. The invention further discloses an operation method of thetower barrel convenient to maintain during high-place operation. The operation method comprises the following steps of frame climbing, lifting, overhauling work and descending. The tower barrel has the beneficial effects that an overhauling platform composed of an inner annular protection plate, an outer annular protection plate and a bearing plate is additionally arranged on the outer side of the tower barrel convenient to maintain during high-place operation, the overhauling platform is arranged around the tower barrel by one circle, and all sides of the tower barrel can be overhauled by aperson standing behind the overhauling platform and walking around the tower barrel by one circle.

The invention belongs to a testing method of permeability of porous materials, in particular to a testing method of external permeability of a fiber fabric surface. The method comprises the following steps: firstly, laying fiber fabric to be tested into n numbered steps on a mold panel, and then, sealing to form a mold cavity; carrying out vacuum pumping treatment, measuring and recording distance Ln between each step surface and the mold panel, injecting fluid for testing by utilizing vacuum negative pressure, and recording time tn for the flow front of the fluid for testing to reach each step surface; and drawing a linear relation graph of tn and the square of Ln, fitting to obtain a slope k, and then, calculating the external permeability K of the surface of the fiber fabric to be tested according to the formula. The invention has the advantages of simple operation, high accuracy, strong applicability, low cost, and the like.

The invention provides a material sample division device. The material sample division device comprises a supporting mechanism, a division mechanism, a feeding mechanism and a sample dividing mechanism, wherein the supporting mechanism is arranged on the ground; the division mechanism comprises a straight division barrel, a primary division barrel, a secondary division barrel, an N-stage divisionbarrel and at least one rotary wheel disc; the straight division barrel, the primary division barrel, the secondary division barrel and the N-stage division barrel are arranged on the rotary wheel disc; the two adjacent rotary wheel discs are arranged in parallel up and down; the rotary wheel disc is rotatably connected with the supporting mechanism; the feeding mechanism is used for arranging anyone of the straight division barrel, the primary division barrel, the secondary division barrel and the N-stage division barrel; the sample dividing mechanism is arranged below the rotary wheel discand is used for arranging any one of the straight division barrel, the primary division barrel, the secondary division barrel and the N-stage division barrel; and a material sample can fall into the division mechanism from the feeding mechanism, passes through the division mechanism and then falls into the sample dividing mechanism. The invention further provides a material sample division method.The division device is high in division efficiency and is not limited by a field.