80results about How to "No diffusion" patented technology

The invention provides an electronic paste based on low-melting-point metal micro-nano powders. The electronic paste is composed of low-melting-point metal micro-nano powders, a binder, a solvent and an auxiliary agent. The mass proportion of the low-melting-point metal micro-nano powders in the electronic paste is 45 to 90%. The melting point of low-melting-point metal is -78 to 232 degree centigrade. The electronic paste is suitable for traditional printing methods such as silk screen printing and can be widely used in printing electronic industry, such as front and back electrodes of solar panels, RFID tags, cell phone antennas, non-contact IC card antenna lines, and the like. The electronic paste has the advantages of high printing precision, low sintering temperature, no diffusion after sintering, low breaking rate, small contact resistance and low cost.

The invention belongs to the field of environmental protection technology, in particular to a self-operated vacuum drainage system. The vacuum drainage system is practically a sewage collecting system which leads to all directions through a pipeline communicated with a vacuum tank, leads to sewage collecting points, and is used for pumping sewage into the vacuum tank through a vacuum pump unit and draining the sewage into a main municipal pipeline through a sewage pump or an air compressor. The system comprises a sewage tank, the vacuum tank, a vacuum pump, a vacuum boundary valve, a drainagepump, the air compressor, a PC (Personal Computer), corresponding control software and the like. Compared with the conventional gravity blowdown system, the self-operated vacuum drainage system has the characteristics of simple construction, low cost, flexible movement and high efficiency. The self-operated vacuum drainage system is mainly used for collecting the sewage of industrial and mining establishments, institutions, schools, city and countryside residential areas and the like, can also be used for collecting excrements in vacuum toilets, contributes to saving a large amount of water, is free from odor by running under negative pressure, is particularly suitable for water-lacking cities, and can also be applied to toilets on subways, trains and long-distance buses.

The invention discloses an on-site detection immuno-chip, comprising a chip carrier and an agarose gel layer which is paved on the chip carrier, wherein, the agarose gel layer is fixed with a plurality of antibody microarrays of 4*4, and chip-dedicated fences or Super PAP Pen scribings are used for separating the microarrays from each other; the double antibody sandwich principle is adopted to detect the antigen to carry out the dot matrix of corresponding capture antibody, positive control and negative control on the solid phase carrier simultaneously; the antibody protein is connected with the solid phase carrier through the covalent bond and physical adsorption; the sample liquid to be detected and the chip are directly incubated; the antigen to be detected in the samples combine with the corresponding antibody which is fixed on the chip; a specific monoclonal antibody probe marked by horse radish peroxidase is added and the macroscopic detection results can be obtained after the coloration of substrates. The invention can detect viruses in multiple aquatic animal samples and the results are macroscopic, thus being applicable to rapid and accurate detection of viruses of aquatic animals in breeding production.

The embodiment of the invention provides a phase unwrapping method and system. The method includes the following steps: obtaining a truncation phase of a measured object according to structured light projected to the surface of the measured object; obtaining a reference plane through shooting and obtaining a reference plane unwrapping phase, and performing unwrapping operation according to the truncation phase and the reference plane unwrapping phase, thereby obtaining a first phase distribution result; building a virtual plane continuous phase, and performing unwrapping operation on the truncation phase and the virtual plane continuous phase, thereby obtaining a second phase distribution result; and performing phase region fusion on the first phase distribution result and the second phase distribution result, thereby obtaining an unwrapping phase of the measured object and a height distribution result. According to the phase unwrapping method provided by the invention, the virtual plane continuous phase is added to assist phase unwrapping, after multiple times of stage-by-stage phase unwrapping is performed, combined with a plurality of unwrapped phases, a final correct unwrapped phase is obtained, the unwrapping speed is fast and error propagation and diffusion are not easy to occur.

The invention provides UV ink having reversible thermochromic capacity and used for PVC (polyvinyl chloride), a preparation method and a use method and relates to the technical field of printing ink. Raw materials of the UV ink comprise 30%-54% of a prepolymer, 30%-51% of a monomer, 5%-9% of a photoinitiator, 3%-7% of an accelerator, 0.5%-2% of a dispersing agent, 1%-2% of a defoamer and 2%-6% of a thermochromic pigment. The UV ink is prepared from the specific raw materials in specific dosage, has the reversible thermochromic function, can be applied to anti-counterfeit printing for packaging, and is high in adhesion, simple to cure, good in strength and good in resistance. The invention further relates to a manufacture process and the use method of the UV ink. The prepolymer, the monomer, the accelerator and the defoamer are premixed, a mixture is obtained, then the thermochromic pigment, the photoinitiator and the dispersing agent are added to the mixture, and the mixture is stirred. The preparation method is simple and easy to operate. The use method of the UV ink is simple and has broad application prospects.

The invention provides an SiC fiber-reinforced TiAl-based composite with an Mo coating and a preparation method of the SiC fiber-reinforced TiAl-based composite. The preparation method comprises the steps of firstly, preparing a layer of C coating with the thickness of 2-4[mu]m on the surface of SiC fiber by using a chemical vapor deposition process; then, uniformly depositing an Mo metal coating with the thickness of 0.5-2[mu]m on the surface of the SiC fiber with the C coating by using a magnetron sputtering deposition process; and finally, preparing the SiC fiber-reinforced TiAl-based composite with the Mo coating by using a foil-fiber-foil process or a fiber coating process. The interface reaction speed of the fiber and a matrix and the consumption speed of the C coating of the fiber under a high-temperature condition are effectively reduced, and the Mo coating is excellent in thermal stability, does not participate in the interface reaction, is not diffused and can be used for effectively relieving the thermal residual stress at the interface of the composite.

The invention relates to an environmentally-friendly phytochemical pasty biopesticide and a preparation method thereof. The biopesticide is characterized by being prepared by grinding and boiling the following raw materials in percentage by mass in water: chinaberry seeds 25-45, eucalyptus citriodora branches and leaves 0-20, croton fruit 5-15, star anise 0-10, fennel 5-10, tea seed cake 20-30 and colza cake 5-10, wherein the total mass percentage of the raw material components is 100 percent. The biopesticide is suitable for preventing and controlling pest and disease damages to woody fruit trees of longan, lichee, mango, mandarine, persimmon, apple, snow pear, pomelo and the like and is applied on tree trunks to repel and contact and kill pests. And the biopesticide can obviously improve the photosynthesis of the leaf surfaces, promote the sound growth of the fruit trees, increase the strength of flower stalks and the thickness of petals when applied before blossom, improve fruit setting rates when applied in young fruit period, make fruit avoid drop, ripe fruits even, ripe period advanced or hanging period prolonged when applied in middle fruit period, and lay a basis for shooting promotion and high yield in the coming year when applied after harvest.

To quickly and efficiently detect the gas leakage, a concept of Internet of Things is utilized, a thermistor temperature detection technique, a wireless communication technique and an intelligent gasmeter safety cutoff technique are combined, a method using a platinum thermistor for detecting temperature and a Zigbee wireless communication technique for completing quick detection, alarming and automatic cutoff on the gas leakage is provided, and one set of device is designed and built. Proofed by experiment, the device and the method can be used for quickly sensing the gas leakage, automatically and safely cutting off the gas source, and effectively ensuring the long-time gas use safety of a user.

The invention discloses a western blot detection method for phosphoprotein. The western blot detection method for the phosphoprotein comprises the following steps: S1, preparing a sample, carrying outgel electrophoresis, namely adding 6 times SDS sample loading buffer solution in a ratio of 5:1 into the phosphoprotein sample, uniformly mixing, and carrying out electrophoresis at a voltage of 80 V; S2, transferring a membrane, namely connecting a gel surface with a negative pole, connecting a PVDF membrane with a positive pole, and carrying out transfer printing for 1 hour at a constant voltage of 130 V; S3, sealing, namely putting the PVDF membrane into PBST containing 5% of BSA, and hatching for 20 minutes in a shaking table and at room temperature; S4, adding primary antibodies, namelyadding the primary antibodies, hatching for 2 hours in the shaking table and at the temperature of 24 DEG C, and rinsing for four times with PBST, wherein the rinsing is carried out once every 5 minutes; S5, adding secondary antibodies, namely adding anti-rabbit secondary antibodies labelled by horse radish peroxidase (HRP), hatching for 1 hour in the shaking table and at room temperature, and rinsing for four times with PBST, wherein the rinsing is carried out once every 5 minutes; and S6, developing, namely uniformly dropwise adding a developing reagent on the PVDF membrane, and carrying outgel developing. The western blot detection method for the phosphoprotein has the advantages that a wet membrane transferring manner is adopted during western blot detection of the phosphoprotein, anda protein signal is continuous and high in strength; and no non-specific band exists when dilution ratio of the primary antibodies is 1:5000, and the protein signal is better in effect.

The invention discloses a hafnium oxide-based ferroelectric capacitor and a manufacturing method thereof. The ferroelectric capacitor comprises a first bottom electrode layer (4), a second bottom electrode layer (5), and a hafnium oxide-based ferroelectric film layer (6b), a first top electrode layer (7) and a second top electrode layer (8) which are stacked sequentially from bottom to top, wherein the first bottom electrode layer (4) and the second top electrode layer (8) are conductive layers; and the second bottom electrode layer (5) and the first top electrode layer (7) are electrodes. Theferroelectric capacitor has good miniature and excellent ferroelectric properties.

The invention discloses a temporarily water-soluble disperse dye and a preparation method and application thereof. The dye has a structural formula shown in the specifications, wherein R1 is -C2H4CN or-C2H5. The dye has high dyeing exhaustion property and is suitable for dyeing superfine polyester fibers; the chromatographic peak is wide; the color of filtrate is light, the yield is high, and wastewater is convenient to treat; and the problem that black cannot be matched is solved, and light fastness and washing fastness are high. The dye can be directly standardized to be used for preparing ink of an ink-jet printer, cannot be redissolved after being precipitated on printing paper, and cannot be diffused when meeting water, so that the application range of the ink-jet printer is expanded.

The invention relates to a cutter-suction packing pumping method for cleaning contaminated sediments in a river, which is characterized in that: the sediments are conveyed to a hydraulic separation tank by using a cutter-suction dredger, and the left coarse particles after screening are mechanically transported to a dump to be treated; liquid fine particles self-flows into a treatment pond and are packed and sealed from the top of the treatment pond by using a closed device; a water filtering system is arranged in the sealed body, a water filtering layer capable of adsorbing heavy metal ions is arranged at the bottom of the water filtering system, a pond bottom pipe network which is communicated with the water filtering layer is arranged in the sealed body, and a pumping passage is arranged in the water filtering layer; the gas-water mixture in the sealed body is forcibly absorbed from the pumping passage by using a jet pumping and water adsorbing device until the liquid fine particles are converted into a solid state from a liquid state; the solid fine particles are mechanically transported to a centralized stacking spot; and tail water is treated by using a chemical reagent and discharged into the river after meeting the emission standard. The method has the advantages of no diffusion of pollution because the mud water body is isolated from the outside in the treatment process, no derivative, less power consumption, high efficiency and environmental-friendly treatment of underwater contaminated sediments.

The invention discloses a nostoc flagelliforme genome DNA extraction method. The method comprises the following steps: collecting pure culture cells of nostoc flagelliforme in a centrifugation manner and cleaning through sterile water, a 1.0% NaCl solution and sterile water in sequence; and carrying out homogenate wall-breaking; adopting the following extracting solutions to extract DNA, wherein the extracting solutions comprise 100mM Tris-HCL, 20mM EDTANa2, 1.4M NaCl, 0.2% mercaptoethanol, and 2.0% CTAB, and the pH is 8.0. Compared with a kit extraction method, the extraction method provided by the invention has the advantages as follows: the involved experiment operation is simple, a reagent is easy to obtain, the cost is low and the yield is high. The ratio of OD<260> to OD<280> of the genome DNA extracted through the extraction method provided by the invention is about 1.8, the purity is high, a dispersion phenomenon does not exist, completeness is good, and the nostoc flagelliforme genome DNA can be directly applied to PCR, gene recombination and other high-precision molecular biology experimental research.

The invention relates to a polyester-based label tape. The thickness of the polyester-based label tape is 0.100-0.150 mm. The preparation method of the polyester-based label tape comprises the steps of yarn pre-preparation, base cloth yarn treatment, weaving, shaping, immersion cleaning, drying, alcohol solvent coating, two-section baking and slitting. The specification of base cloth yarns is (60-120) D, the density of warp yarns is (70-150) pieces/cm, the density of weft yarns is (30-60) pieces/cm, and the base cloth yarns are treated by spraying 1-20wt% of a pre-preparation and 0.2-0.8 wt% of an antistatic agent mixed slurry and drying at 105-120 DEG C for 1-3 minutes; after the woven fabric is shaped, carrying out immersion cleaning by adopting a weak base mixed solution, and drying at 110-150 DEG C for 2-10 minutes; coating with a 10-30 wt% alcohol-based solvent compounded by multiple solvents, then carrying out gradient baking, carrying out first-stage baking at 80-120 DEG C for 5-10 min, raising the temperature to 180-200 DEG C, and carrying out second-stage baking for 1-3 min; and after drying and forming, slitting to obtain the terylene-based label tape. The polyester-based label tape alcohol solvent can be coated, and is anti-static, flame-retardant, washable and good in printing effect.

A water-saving sanitary toilet bowl comprises a cylindrical structure, a conical cylindrical structure and a cylindrical drain outlet which are sequentially in butt joint from top to bottom. The drain outlet is directly matched with a vertical drainpipe in an inserted and connected manner, a frustum-shaped flap valve is hinged at the upper end opening of the drain outlet, a flap valve cavity is arranged at the corresponding conical cylindrical structure after the flap valve is opened, a spring matched with the upper end of the flap valve is arranged in the flap valve cavity, the middle of the flap valve is connected with a pedal at the bottom of the outer side of the toilet bowl through an open and close steel wire rope in a driving manner, at least three water spraying devices are uniformly arranged on the periphery of the upper inner wall of the cylindrical structure of the toilet bowl and are connected with a water supply pipeline through flow control valves, each water spraying device comprises a nozzle which is inclined downwards, the included angle between each nozzle and the horizontal direction is 3 degrees, and the water spraying direction is tangent to the inner wall of the toilet bowl. By the aid of the water-saving sanitary toilet bowl, blockage is avoided, bacteria cannot be spread, peculiar smell is prevented, and water is saved.

The invention relates to the technical field of molecular biology, in particular to an ITS sequence multiplexed sequencing library construction method. The construction method includes the following steps that firstly, an amplification PCR is used, wherein a primer F1 and a primer R1 form a primer pair, and the PCR amplifies n ITS1-ITS4 sequences in a sample; secondly, a library construction PCR is used, wherein a primer F2 and a primer R2 form a primer pair, and the PCR product obtained in the first step serves as a template for PCR amplification. Quality and balance of data obtained through sequencing reaction of 40 Indexes used in the construction method are better, and sequencing results are more accurate. Marking of different library samples as many as 15*15*10 can be achieved. High-specificity amplification products can be obtained by low-complexity sample types such as animal intestinal tracts, water and yeast for making hard liquor, and high specificity is also achieved in soil, silt and other high-complexity sample types.