68results about How to "Reduce sticking phenomenon" patented technology

The invention provides a sub-pixel level stereo matching method based on a scale space. The method comprises the following steps of: (1) establishing the scale space for a stereopair; (2) determining the size of a matching window for each point of a current level reference image in the scale space; (3) calculating a parallax searching range for each point of the level reference image according tothe parallax of the former level; (4) calculating an integer-grade parallax of the current level in the scale space; and (5) calculating a sub-pixel level parallax through a sub-pixel level matching method based on binary search. The method of the invention uses the stereopair generated under the condition of small height ratio to match; a dispersed scale space is used in the matching process to improve the matching efficiency; a bonding phenomenon generated in the matching process is reduced by using a mixed window selecting strategy; and the sub-pixel level parallax is obtained by the sub-pixel level matching method based on the binary search so as to ensure high sub-pixel level precision, and greatly improve matching efficiency of the algorithm.

The invention belongs to the technical field of frozen dumpling processing by additives, in particular to a frozen dumpling modifying agent, a preparation method thereof and application. The frozen dumpling modifying agent is prepared from the following components in percentage by weight via mixing: 35 to 42 parts of active soybean meal, 25 to 38 parts of konjaku flour, 5 parts of complex enzyme, 8 to 12 parts of carrageenin and 10 to 20 parts of modified starch. The modifying agent can adapt to the process requirements of the mechanized production of the frozen dumplings, improve the quality of finished products of the frozen dumplings, effectively improve the mechanical stirring resistance degree of the flour dough of the frozen dumplings, reduce the roll adhesion phenomenon of cheeks during the mechanized production, can simultaneously improve the boil resistance performance, the smooth performance and the freeze-thaw stability of the frozen dumplings, and improve the external appearance and the mouth feeling of the frozen dumplings.

The invention belongs to the technical field of copper-clad plates and particularly relates to a preparation method of a copper-clad plate with two flexible surfaces. The preparation method comprises the following steps of preparing an adhesive; smearing the adhesive on one surface of a flexible insulated base film, then baking the adhesive by adopting a segmented temperature control method, then compositing the dried adhesive and a copper foil in a rolling manner; smearing the adhesive on the other surface of the flexible insulated base film, then baking the adhesive by adopting a segmented temperature control method, then compositing the dried adhesive and the other copper foil so as to obtain the copper clad plate with two flexible surfaces. Compared with the prior art, the copper-clad plate and the preparation method have the advantages that by segmented temperature control, the temperature is firstly increased to be higher than the volatilization temperature of a solvent slowly, so that the solvent can be fully volatilized; then the temperature is slowly increased to be more than the reaction temperature of epoxy resin, so that the linear epoxy resin is completely cured into a shaped high-molecular compound, further the curing of the adhesive is safe, the occurrence of the phenomenon of plate adhesion after a circuit is printed can be reduced and the quality of the product is improved.

The invention discloses a dexibuprofen sustained-release tablet and a preparation process thereof. According to the preparation process, colloidal silicon dioxide is used as an antiplastering aid, and dry granulation is carried out by using a high-speed rotary tablet press; the prepared dry granules are respectively mixed with auxiliaries in specific quick-release and sustained-release layers to press a dual-layer tablet which is the dexibuprofen sustained-release tablet. The preparation process can be used for effectively reducing the sticking phenomenon caused by temperature increase when tabletting is carried out for a long time, and has simple process and relatively high efficiency; and the prepared sustained-release tablet has high bioavailability and good stability.

The invention discloses a device for coating the inner wall of an oil casing coupling with an anti-friction nano coating. The device for coating the inner wall of the oil casing coupling with the anti-friction nano coating comprises a storage mechanism, a feeding mechanism and a workpiece rotating mechanism. The storage mechanism comprises a stirring kettle and a first driving motor. The feeding mechanism comprises a base, a lead screw, a moving block and a second driving motor. A dripping pipe and a coating brush are arranged on the moving block. The workpiece rotating mechanism comprises a driving roller, a driven roller and a third driving motor. The invention further discloses a method for coating the inner wall of the oil casing coupling with the anti-friction nano coating. The method for coating the inner wall of the oil casing coupling with the anti-friction nano coating comprises the following steps that firstly, a workpiece is rotated; secondly, the anti-friction nano coating is evenly stirred; thirdly, the nano coating is brushed while the coating brush moves in a reciprocating mode; and fourthly, drying is conducted. According to the device and method for coating the inner wall of the oil casing coupling with the anti-friction nano coating, the design is novel and reasonable, the device can be obtained conveniently, and the method can be implement conveniently; the application range is wide, and the using effect is good; an oil casing coupling workpiece can be coated with the coating rapidly, and the purpose of improving the viscidity resistance of the oil casing coupling is achieved finally.

A hollow fiber membrane filter element is characterized in that the filter element comprises a filter shell, a central pipe, hollow fiber membranes, a glue sealing shell, glue sealing layers and a water collecting cover; an opening is formed in the upper end of the filter shell, and a dirty water outlet hole is formed in a bottom plate; the central pipe is arranged in the middle of the filter shell, one end is opened to form a water inlet port, and water distribution holes are formed in the side wall; the hollow fiber membranes are positioned in the filter shell, first ends of the hollow fibermembrane uniformly coat the periphery of the water inlet port of the central pipe, and second ends of the hollow fiber membranes are arranged in the length direction of the central pipe and close tothe bottom end of the central pipe; the glue sealing shell is arranged on the periphery of the opening of the filter shell; and the glue sealing layers are positioned between the inner wall of the glue sealing shell and the hollow fiber membranes, between the hollow fiber membranes and between the hollow fiber membranes and the outer wall of the central pipe. The invention further discloses a gluesealing method for the hollow fiber membrane filter element. The method has the advantages of more uniform inlet water distribution and reduction of membrane filament concentration polarization.

The invention relates to fields of computer vision, aerial photography measurement and industrial automation, in particular to a stereo matching method based on iterative guidance filtering. The method includes computing original matching cost; determining size of a supporting window for each point to be matched according to gray changes of instruction images; accumulating original matching cost through utilizing guidance filtering according to the sizes of the supporting windows; computing parallax; correcting the original matching cost according to computed parallax images; repeating execute step (3) till the determined maximum number of iterations is reached. The integral image technology is utilized to compute adaptive windows and the guidance filtering, and matching efficiency of the stereo matching method is improved effectively. The computed parallax is utilized to correct the original matching cost and the guidance filtering is utilized to accumulate, robustness of matching cost to noise and radiation difference in enhanced, and accordingly accuracy of vision matching is improved.

The invention relates to a preparation method of a clopidogrel bisulfate solid preparation. The method discloses a two-step granulation process of melt-granulating and then dry-pressing granulating for clopidogrel bisulfate, and the obtained granules have good compressibility and fluidity, and are not easy to stick to a die, so that the problems of tablet sticking, easy revealing or splitting which are common in the preparation of oral tablets of clopidogrel bisulfate is solved. The preparation method can ensure the rapid dissolution of the drug in the preparation, and the long-term retentionof the sample does not increase the impurities. The preparation process of the present invention is highly practical and can be used for large-scale preparation of clopidogrel sulfate bulk drugs withdifferent physical properties.

The invention discloses a silicon-free oiling agent for carbon fiber precursor. The silicon-free oiling agent comprises an aqueous emulsion prepared by dispersing aromatic ester compounds, aromatic polyoxyethylene ether and amine compounds, by the mass ratio of (50-80):(10-35):(1-5), in water; the aromatic ester compounds include one or more of benzene tricarboxylic acid esters, benzene dioctyl phthalate esters, hydroxy-benzoate esters and bisphenol ethoxide high-grade fatty acid esters; aromatic polyoxyethylene ether includes one or more of alkylphenol polyoxyethylene and bisphenol-A polyoxyethylene ether; the amine compounds include one or more of lauramide ethoxide, aliphatic long-chain quaternary ammonium; the survival rate of mass of the aromatic ester compounds is 80-98% at the temperature of 300 DEG C in the atmosphere of air, and the mass ratio of the aromatic ester compounds in involatile components of the oiling agent is 50-80%. Roll banding degree of the precursor in production can be reduced effectively, doubling and adhering of PAN filaments in the pre-oxidation process can be avoided, and the silicon-free oiling agent has certain hydrophilicity and heat resistance.

The invention provides a famciclovir direct compressed tablet and a preparation method thereof. The direct compressed tablet comprises 70-80wt% of famciclovir, 10-20wt% of lactose, 5-15wt% of microcrystalline cellulose, 0.5-1wt% of colloidal silica and 0.5-1wt% of magnesium stearate.

The invention discloses a laser embossed holography recording material and a preparation method thereof. The laser embossed holography recording material comprises imaging resin, and irradiation grafted modified polytetrafluoroethylene micro-powder used for compounding and modifying the imaging resin; and a mass ratio of the irradiation grafted modified polytetrafluoroethylene micro-powder to the imaging resin is 1/20 to 1/200. The laser embossed holography recording material with good internal uniformity and high stability is prepared through improving the microstructure composition and the structure of a key material and effectively solving the problems of easiness in sticking, point dropping and defects of resin used by present laser embossed holography recording layers in the molding process in the prior art.

The invention relates to a use method of a copper anode plate casting release agent, and belongs to the technical field of copper smelting and casting technique. A conventional barium sulfate releaseagent or a barium sulfate-based composite release agent is mixed with water to be prepared into suspension; then polycarboxylic acid is added into the suspension and spread uniformly; then polyvinyl alcohol is added in and spread uniformly to obtain release agent suspension; after mould temperature rises above 180 DEG C, the release agent suspension is sprayed for use, wherein the adding amount ofthe polycarboxylic acid is 0.3%-2.5% of the total mass of conventional barium sulfate release agent or barium sulfate composite release agent dry powder which needs to be prepared into suspension, and the adding amount of the polyvinyl alcohol is 0.2%-2% of the total mass of conventional barium sulfate release agent or barium sulfate composite release agent dry powder which needs to be prepared into suspension. According to the use method, for overcoming the use defects of a current release agent, other materials are added; the surface tension and of the release agent suspension is changed, and dispersity of release agent particles is improved; the release agent suspension is sprayed on a hot copper mould, and a condense film with high adhesive force is formed during a water evaporation process; agglomerated particles formed on a mould plate are reduced; and the appearance quality of an anode plate is improved.

The invention provides a battery negative electrode, a preparation method thereof and a lithium ion battery. The battery negative electrode comprises a current collector and a negative electrode active material layer arranged on the surface of the current collector in a coating manner, wherein the negative electrode active material layer comprises negative electrode active materials, conductive agents and an adhesive; the adhesive contains aqueous adhesives, first sodium carboxymethylcellulose and second sodium carboxymethylcellulose; the degree of substitution of first sodium carboxymethylcellulose is 0.95-1.0; the degree of substitution of second sodium carboxymethylcellulose is 0.8-0.85; the mass ratio of first sodium carboxymethylcellulose to second sodium carboxymethylcellulose is (0.5-0.75) to (0.5-0.75). The battery negative electrode has good active layer thickness uniformity, thus endowing the battery negative electrode with excellent comprehensive electrochemical properties.

The invention provides potato-rich fine dried noodles based on three-layer composite calendering and a preparation method thereof. The potato-rich fine dried noodles comprise the following raw materials in parts by weight: 20-40 parts of potato whole powder, 52.7-77 parts of wheat flour and 3-7.3 parts of vital gluten. The raw materials are premixed: the whole potato flour, the wheat flour and thevital gluten are divided into inner-layer flour and outer-layer flour, which are respectively and uniformly mixed; the inner-layer flour is mixed flour of whole potato flour, wheat flour and vital gluten, the outer-layer flour is wheat flour, and the mass ratio of the inner-layer flour to the outer-layer flour is 1: 0.5-1: 1.5; and the mass ratio of the whole potato flour to the wheat flour to the vital gluten in the inner-layer flour is (0.4-0.6): (0.29-0.54): (0.06-0.11). According to the potato-rich fine dried noodles, the technical problems that potato noodles are poor in tensile capacity, easy to stick to rollers, large in noodle cooking loss, easy to break, difficult in rolling and drying of inner-layer high-moisture sandwich noodles and the like are effectively solved, the potato-rich food fine dried noodles with excellent processing quality, eating quality and functional quality are produced, and the content of whole potato flour is 20%-40%.

The invention discloses a polyvinylidene fluoride resin preparation method and reaction equipment. The method comprises the steps of adding a reaction medium, a dispersing agent and a chain transfer agent to a reaction vessel, performing degasification, and introducing an initiating agent and a vinylidene fluoride monomer so as to be subjected to polymerization reaction. In a reaction process, a gas phase and a liquid phase are stirred simultaneously. The reaction vessel comprises a stirrer for stirring the liquid phase, a stirrer for stirring the gas phase and an initiating agent charging pipeline connected with a fluid in the reaction vessel, wherein a discharging hole of the initiating agent charging pipeline is positioned below the liquid level of the reaction medium.

The invention relates to a method for improving the fluidity of spray powder particles of a hard alloy mixture. Raw materials are prepared into the hard alloy mixture, a wet milling medium, an alloy bar and a forming agent are added for ball milling, and fatty acid diethanolamide and oleamide are added in the ball milling process; and mixture slurry obtained after wet milling is screened, spray-dried and pelletized, and the hard alloy spray particles smooth in surface and good in fluidity are prepared. The fatty acid diethanolamide and the oleamide are added, and in combination with ball milling and spray production processes matched with the fatty acid diethanolamide and the oleamide, the fatty acid diethanolamide can be fully fused with paraffin and ethyl alcohol; polar groups and non-polar groups in the fatty acid diethanolamide are combined with a ball milling medium and the paraffin correspondingly, and stable suspension is formed; the prepared mixture slurry is uniform and is notlikely to precipitate, the spraying efficiency is high, and the spray powder particles are good in uniformity; the spray powder particles are regular in morphology, smooth in surface and good in fluidity; and the prepared powder is good in pressing performance, and cracks and other defects are not likely to be generated.

The invention belongs to the technical field of algae, and discloses a method for reducing isochrysis-galbana adherence and increasing the growth amount. The method includes the following steps that an isochrysis-galbana seed solution is inoculated to a reaction pool containing a culture solution according to the inoculation amount of 5% to 10%, then 100 mg/L-200 mg/L amino acid is added, and themixture is cultured at the temperature of 20 DEG C to 22 DEG C, wherein the light-dark ratio is 12:12, and the ventilation rate is 0.4 vvm to 0.5 vvm; culturing is carried out for 48 h to 72 h, and algal cells are collected. By means of the method, the isochrysis-galbana adherence phenomenon can be obviously reduced, and the biomass of the algal cells is increased.