53results about How to "Long preparation time" patented technology

Disclosed is an installation for competitive play with an ice hockey stick and an ice hockey puck. The installation includes a game platform, a goal with targets, target identifiers and a computer. A computer controlled puck circuit includes a puck magazine (30), a passing unit (46) which feeds pucks (1) to a player (40), a conveyor apparatus (2) which sorts and conveys shot pucks (1) into the puck magazine (30). The points value of shots made by the player (40) are evaluated with the help of a light barrier A (48) and a light barrier B (49), a camera (50) und a corresponding underlying computer program and the points assigned form the basis for a competitive play which can be played over the international data network.

The invention discloses a manufacturing method of a metal-directly-plated RFID (radio frequency identification) electronic tag antenna. The antenna is formed by sequentially arranging a pre-coating layer, an antenna pattern layer, a metal-directly-plated layer and a surface coating layer. The manufacturing method comprises the following steps of pre-coating a base material, designing the antenna, preparing a pattern anilox roller, printing an anilox roller pattern, directly plating metal in vacuum, coating a surface coating and the like. Due to the fact that the antenna is directly formed by melting and evaporating a metal raw material in vacuum at high temperature, and evaporating the metal raw material onto the base material according to the designed antenna pattern, and subsequent manufacturing steps such as aluminum washing or hot stamping are not required, the production process is simplified. The manufacturing method of the metal-directly-plated RFID electronic tag antenna is capable of reducing radio frequency antenna manufacturing cost, environment-friendly, simple in process and high in production efficiency, and the defects of high cost, environment pollution and the like of the current electronic tag antenna manufacturing method are overcome.

The invention discloses a preparation method and application of a pyridazinone myocardial perfusion PET radiopharmaceutical. According to the invention, a large-dose initial 18F activity label is adopted, the precursor usage amount of a reaction, the reaction temperature and the purification HPLC condition are optimized, the reaction yield is improved, the preparation amount of [18F]Fmpp2 can reach 200 mCi, the chemical impurity amount is reduced, the radiochemical purity is high, and the key quality index is kept stable within 6 hours. A method for preparing a [18F]Fmpp2 solution for injection is improved, and the radiochemical purity and stability of the [18F]Fmpp2 are improved. The [18F]Fmpp2 prepared by the invention is subjected to miniature pig myocardial model PET imaging display; after the [18F]Fmpp2 is intravenously injected, the myocardial radioactive uptake is high, and the influence of peripheral organs on myocardial development is small; and normal myocardium, ischemic myocardium caused by chronic coronary artery stenosis and infarcted myocardium caused by acute coronary artery stenosis can be distinguished.

Disclosed are a three-dimensional memory and a forming method thereof, wherein the forming method comprises: forming a storage wafer, the forming method of the storage wafer comprising: providing a first substrate; Forming a plurality of NAND strings on the first substrate; A method for a peripheral circuit wafer include providing a second substrate; Forming a plurality of peripheral devices on the second substrate; Forming a plurality of bit lines on the peripheral device, the bit lines being located on the surface of the peripheral circuit wafer and electrically connected with the pluralityof peripheral devices; connecting a memory wafer with a peripheral circuit wafer, and connecting a plurality of bit lines with a plurality of NAND strings one-to-one correspondingly. The method can reduce the manufacturing time of the three-dimensional memory.

The invention discloses a boride metal ceramic coating material and a preparation method. According to the boride metal ceramic coating material and the preparation method, a centrifugal spraying and drying method is used for preparing boride metal ceramic powder which comprises, by mass, 60-80% of TiB2 powder, and 20-40% of Ni powder and Cr powder. The boride metal ceramic powder is made to have a certain bonding strength through a vacuum heat treatment method, and the surface of a metal substrate is coated with the boride metal ceramic powder through an HVOF method. A coating prepared according to the technical scheme is compact in structure, even in boride distribution, of a typical layered structure and excellent in mechanical property. Accordingly, the tribological property and the high-temperature oxidation resistance of the metal substrate are further improved.

A wound-healing and hemostatic sponge of squid ink polysaccharide / chitosan, a preparation method and use thereof are provided. The sponge comprises squid ink polysaccharide and chitosan as carriers and calcium chloride as an initiator for blood coagulation, and the wound-healing and hemostatic sponge of squid ink polysaccharide / chitosan is achieved via a lyophilization technology. Particularly, the preparation method comprises slowly adding a squid ink polysaccharide solution to a chitosan solution to form a uniformly mixed solution, adding a calcium chloride solution to the uniformly mixed solution, forming a gel followed by the gel being frozen and then lyophilized, and achieving the product. The wound-healing and hemostatic sponge has a good absorbing-errhysis effect, a good pro-coagulant effect, fast hemostasis and a complete hemostatic effect, without secondary re-hemorrhage. Moreover, the wound-healing and hemostatic sponge can promote wound healing, re-epithelialization and repair of epidermis and dermis, with strong wound-healing ability, good biocompatibility, weak toxic side effects and irritation, belonging to a novel wound-healing and hemostatic material. Moreover, the preparation method is reliable, fast, and low cost.

The invention belongs to the technical field of preparation of phenylglyoxylic acid ester and provides a method for preparing phenylglyoxylic acid ester from mandelic acid ester by catalytic oxidation. The method comprises steps as follows: oxygen-containing gas is taken as an oxidizing agent, vanadium oxide and transition metal nitrate are taken as a composite catalyst, mandelic acid ester is subjected to one-step oxidization under mild reaction conditions at 30-150 DEG C, and phenylglyoxylic acid ester is prepared. Compared with synthetic methods such as a Friedel-Crafts acylation method, abenzoyl cyanide hydrolysis method, a styrene oxidation method and the like, the method has the advantages of a few reaction steps, simple operation and mild reaction conditions, is environmentally-friendly and has better application prospect and higher practical value, and the catalyst is cheap and efficient.

The present application discloses a method for preparing optical metasurfaces, wherein the method is performed based on nano-imprinting, and the template used in the method is an imprinting template with patterns of meta-atoms. The method for preparing optical metasurfaces provided by the present application can replace the electron beam lithography method used in fabricating meta-atoms, greatly reducing the costs, and greatly reducing the production time. The method provided by the present application significantly improves the production cost and the production time, achieving a low-cost, large-scale fabrication of metasurface-based optical elements within a short time, and having good industrialization prospects.

Compounds and methods for use in detecting pregabalin in a sample suspected of containing pregabalin are disclosed. Pregabalin derivatives are described for producing pregabalin conjugates. A pregabalin-immunogenic carrier conjugate may be used as an immunogen for the preparation of an anti-pregabalin antibody. A pregabalin-detectable label conjugate may be used in a signal producing system in pregabalin assays.

The invention discloses a precise mass spectrum method to identify wheat low-molecular-weight glutelin subunit, which comprises: (1) to prepare the sample, using 35-45% acetone to deposit protein extract and centrifuge, selecting supernatant, and using 75-85% acetone to deposit the glutelin subunit; (2) using dissolution liquid to dissolve the dissolution; wherein, the dissolution liquid comprises 15-25v% acetonitrile, 0.1v% TFA, and water.

The invention discloses soybean oil-based environment-friendly offset rotary news ink and a preparation process thereof. The ink comprises the following raw materials in parts by weight: 15.6-17.2 parts of an organic pigment, 28.8-33.5 parts of high-viscosity soybean oil-based resin oil, 35.5-41.8 parts of low-viscosity soybean oil-based resin oil, 3.5-8.2 parts of stuffing and 3.5-5.5 parts of anauxiliary, wherein the high-viscosity soybean oil-based resin oil comprises the following raw materials: 40-40.5 parts of high-viscosity rosin modified phenolic resin and 59-60 parts of soybean oil;and the low-viscosity soybean oil-based resin oil comprises the following raw materials: 33-37 parts of low-viscosity rosin modified phenolic resin and 65-68 parts of soybean oil. The ink disclosed bythe invention is low in cost, good in oil solubility, economic and practical, and is capable of reducing the waste discharge of various processes, decreasing the volatile organic compound componentsof printing ink, reducing the pollution to the atmospheric environment, reducing the cost of ink formula.

The invention provides a copper nanowire and a preparation method thereof. The preparation method comprises the following steps that in the environment with the dew point no more than -50 DEG C and the oxygen content mo more than 10ppm, lithium metal is heated to 200-800DEG C, and therefore the lithium metal is in the molten condition; copper is added in to the lithium metal in the molten condition, heat preservation is conducted and lasts for 5-15min, and mixing is conducted to form molten alloy; the molten alloy is cooled to the room temperature, and lithium-copper alloy is manufactured; andthe lithium in the lithium-copper alloy is removed, and the copper nanowire is manufactured. The copper nanowire is manufactured by a single method, the temperature in the preparation method is low,and the shape and appearance of the copper nanowire can be controlled. In addition, the cost of the preparation method is low, and the copper nanowire can be prepared at a large scale. The prepared copper nanowire can be used as a three-dimensional fluid collector of a lithium battery, and can be directly used in the fields of transparent conductive films, conductive ink and the like.

The invention relates to a corn skinning thresher which comprises a rack, a rotary drum, a threshing sieve plate, a motor, a belt pulley, a front belt pulley, a belt, a rear belt pulley, an exhaust fan belt pulley, an exhaust fan, a feed port, a discharge port, an automatic regulating device, a skinning projection, and a spiral rib. The rotary drum is fixed above the rack, the threshing sieve plate is arranged above the rotary drum, the spiral rib is arranged on the rotary drum, the feed port is arranged in front of the threshing sieve plate, the automatic regulating device is arranged on a tail portion of the threshing sieve plate, the front belt pulley is arranged on a front portion of the rotary drum, a rear belt pulley is arranged on a rear portion of the rotary drum, the exhaust fan is arranged below the rear belt pulley, the exhaust fan belt pulley is arranged on a rear side of the exhaust fan, the motor is arranged below a front portion of the rack, the belt pulley is arranged on a front portion of the motor, the front belt pulley is connected with the belt pulley through the belt, and the discharge port is arranged below a rear portion of the rack. The corn skinning thresher is capable of skinning, threshing and sieving corns of different sizes and is free of manually sieving corn stigmas, corn leaves and corn niblets, and accordingly the corn skinning thresher is laborsaving, high in efficiency, and is capable of operating for a long time.

The invention discloses a molybdenum carbide / foamed nickel composite material, a preparation method, and application thereof in electrocatalytic oxygen evolution. The molybdenum carbide / foamed nickelcomposite material comprises molybdenum carbide and foamed nickel, and the molybdenum carbide is loaded on the foamed nickel. The preparation method of the molybdenum carbide / foamed nickel composite material comprises the following steps: preparing a molybdenum carbide precursor solution, covering the foamed nickel with a molybdenum carbide precursor, and calcining to obtain the molybdenum carbide / foamed nickel composite material. The molybdenum carbide / foamed nickel composite material has the advantages of large specific surface area, stable structure, good electrocatalytic performance and the like, is a novel electrocatalyst which is good in oxygen evolution effect, stable in performance and capable of being widely applied to electrocatalytic oxygen evolution, can be directly used as anelectrode material for electrocatalytic oxygen evolution reaction, and has very high use value and very good application prospect. The preparation method of the molybdenum carbide / foamed nickel composite material has the advantages of controllable preparation process, simple preparation process, low preparation cost and the like, is suitable for large-scale preparation, and is beneficial to industrial application.

The invention discloses a method for preparing silicon carbide nanometer crystal whiskers from crystalline silicon cutting waste mortar. The method comprises: mixing crystalline silicon cutting wastemortar with an organic solvent and performing stirring, and performing filtration to obtain a solid waste material; drying the solid waste material and performing grinding to obtain raw material powder; cleaning plant fibers through an ultrasonic method and drying the obtained plant fibers; and putting raw material powder and treated plant fibers in a discharge plasma system, controlling the temperature at 1100-1600 DEG C, controlling the pressure of inert gas to be 100-800 Pa, and carrying out a reaction for 10-40 min to obtain silicon carbide nanometer crystal whiskers and silicon carbide abrasive. A complex technical process of extracting silicon and silicon carbide separately in a conventional crystalline silicon cutting waste mortar cycling method is simplified, and crystalline silicon cutting waste mortar can be directly made into silicon carbide nanometer crystal whiskers. According to the method, silicon carbide nanometer crystal whiskers and silicon carbide abrasive can be obtained at the same time.

The invention discloses a molybdenum disulfide quantum dot modified molybdenum carbide / foamed nickel composite material, a preparation method and application of the composite material in electrocatalytic oxygen evolution. The composite material comprises a molybdenum carbide / foamed nickel composite material formed by loading molybdenum carbide on foamed nickel, and molybdenum disulfide quantum dots being grown on the surface of the molybdenum carbide / foamed nickel composite material. The preparation method comprises the following steps of: preparing a molybdenum disulfide quantum dot precursorsuspension; mixing the molybdenum disulfide quantum dot precursor suspension with the molybdenum carbide / foamed nickel composite material; and carrying out hydrothermal reaction to obtain the composite material. The composite material has the advantages of being stable in structure, good in electrocatalytic performance and the like, is a novel electrocatalyst which is good in oxygen evolution effect, stable in performance and capable of being widely applied to electrocatalytic oxygen evolution, can be directly used as an electrode material for an electrocatalytic oxygen evolution reaction, and has very high use value and very good application prospects. The preparation method has the advantages of controllable preparation process, simple preparation process, low preparation cost and the like, is suitable for large-scale preparation, and is beneficial to industrial application.

In a magnetic resonance method and device to generate spatially resolved, quasi-T2-weighted magnetic resonance signals from an examination region, an initial magnetization is flipped in a first direction with a first gradient-balanced SSFP sequence. Spatially coded first magnetic resonance signals from the first gradient-balanced SSFP sequence are detected during the transient portion of the first SSFP sequence. An initial magnetization is flipped in a direction opposite the first direction with a second gradient-balanced SSFP sequence. Spatially coded second magnetic resonance signals from the second gradient-balanced SSFP sequence during the transient portion of the second gradient-balanced SSFP sequence. The first and second magnetic resonance signals are constructively superimposed into overlay signals. Image data with a predominant T2 weighting are reconstructed from the overlay signals, or are used for spatially resolved estimation of the T2 relaxation time constant.

The present invention discloses bracket equipment for transporting and fixing a liquefied natural gas storage tank. According to the bracket equipment, an upper base and a lower base are connected through a support device, the base is provided with a rail installation groove, the rail installation grove is arranged on the base, a transmission rail is arranged inside the rail installation grove, drive wheel support devices and driven wheel support devices are movably arranged on the transmission rail, a rolling wheel drive device is arranged on one side of the rail installation grove, rail drive devices are arranged on the other side of the rail installation grove, the rolling wheel drive device is connected to drive wheels, the rail drive devices are connected to the transmission rail, the support device comprises a first support member and a second support member, the second support member is connected inside the first support member in a sleeved manner, the first support member is connected to the second support member through the transmission rail, the transmission rail is provided with a locking device, the circumferential surfaces of the drive wheels and the driven wheels are uniformly provided with anti-slip grooves, anti-slip blocks are arranged inside the anti-slip grooves, and the outer surfaces of the anti-slip blocks are uniformly provided with anti-slip patterns. According to the present invention, the bracket equipment has advantages of support providing, slip resistance, and adjustment of the height and the distance between the rolling wheels so as to further ensure the safety of the transportation personnel and the transportation vehicle.

The invention relates to the technical field of paper production processes, in particular to a high-strength coating for papermaking and a preparation method of the coating. The coating comprises the following raw materials in parts by weight: 88-92 parts of calcium carbonate; 9-11 parts of porcelain clay; 9-11 parts of latex; 0.16 to 0.20 part of a thickening agent; 0.05 to 0.07 part of a dispersant; 0.10 to 0.12 part of a defoaming agent; wherein the calcium carbonate is heavy calcium carbonate, the porcelain clay is calcined porcelain clay, and the latex is styrene-butadiene latex. The glass transition temperature of the latex is increased by changing the types of the latex and the defoaming agent, and the preparation time is prolonged by properly reducing the temperature in the preparation process, so that the performance of the latex is higher, and meanwhile, the drying temperature can be increased to 170 DEG C in the paper drying process after coating, so that the coating performance is stabilized, and the coating strength is increased; and therefore, the quality problems of linting, dusting and powder explosion of the paper are solved.

The present invention relates to the provision of a compound preparation method and apparatus which can be used to prepare a compound or sample for a further analytical or reactive process. Preferably the present invention may be adapted to cool the compound in question to increase its rigidity and to subsequently allow for the mechanical processing of the compound to render it into a plurality of particles or components of substantially the same size.

The invention discloses environment-friendly water-based nano color paste. The color paste is prepared from, by weight, 28-30 parts of a dispersing agent, 1-4 parts of a sterilizing agent, 1-2 parts of a defoaming agent, 30-60 parts of water-based pigment, 1-3 parts of polyamide wax, and the balance of water. The invention further discloses a preparation method of the environment-friendly water-based nano color paste. The preparation method of the environment-friendly water-based nano color paste is characterized by comprising the following steps: (S1) coarsely grinding: adding the raw materials and water, mixing and stirring to obtain a mixed color paste, grinding the mixed color paste until the particle size of the mixed color paste is not greater than 3 [mu]m, washing with water accounting for 10-15% of the total amount of the water, uniformly stirring, and performing coarse filtration; (S2) finely grinding: continuously dispersing and grinding the mixed color paste subjected to coarse grinding, and stopping dispersing and grinding until the measured particle size distribution of the mixed color paste reaches the standard; and (S3) washing and stirring: adding residual water forwashing, and uniformly stirring to obtain the color paste. The color paste has the advantages of high stability, long shelf life and environmental friendliness.

The embodiment of the invention discloses a combined sample and a preparation method thereof, and the preparation method comprises the steps that a sample bearing part is placed on a bearing platform; the sample bearing part comprises a base and at least one grid, and the grid is located at the side, away from the bearing table, of the base; a groove is formed in the grid; the groove is provided with a first side wall, and the first side wall is perpendicular to the substrate; a to-be-thinned sample is pasted on the first side wall of the groove to obtain a combined sample; a first preset angle is formed between the pasting surface of the to-be-thinned sample and the base, and the first preset angle is an acute angle; and the to-be-thinned sample is thinned by utilizing a focused ion beam.

The invention discloses transportation fixing equipment for liquefied natural gas tank sets. An upper base is connected with a lower base through a supporting device. Driving wheel supporting devices and driven wheel supporting devices are arranged on the bases. Each driving wheel supporting device is arranged at one end of the corresponding base. Each driven wheel supporting device is arranged at the other end of the corresponding base. Each drive device is arranged on one side of the corresponding driving wheel supporting device. The drive devices are connected with driving wheels. The supporting device comprises a first supporting component and a second supporting component. The second supporting component is sleeved with the first supporting component. The first supporting component is connected with the second supporting component through transmission rails. The transmission rails are provided with locking devices. Rail drive devices are arranged on the outer side of the second supporting component. A master rail drive device is arranged on the outer side of the first supporting component. The circumferential faces of the driving wheels and driven wheels are provided with anti-skid grooves. Anti-skid blocks are arranged in the anti-skid grooves. Anti-skid stripes are arranged on the outer surfaces of the anti-skid blocks. The transportation fixing equipment for the liquefied natural gas tank sets plays a role in supporting transported tanks and preventing the transported tanks from skidding, safety is achieved, the height of supports is adjusted according to the size of the transported tanks, transportation efficiency is improved, and transportation cost is saved.

The invention provides a method for synthesizing a porous structure by in-situ enhancement of Ta / Si combustion based on an energetic compound, and solves the defects of high production cost, complex process, long time consumption and low energy utilization rate due to the fact that special equipment needs to be used for carrying out long-time heat treatment to realize stable self-sustaining combustion of a Ta / Si system in the prior art. The method comprises the following steps: 1) preparing Ta@ Si powder with a core-shell structure by adopting an electrostatic self-assembly method; (2) preparing an energetic compound coated Ta@Si microsphere by utilizing the energetic compound; and 3) carrying out cold press molding on the obtained energetic compound coated Ta@Si microspheres, and carrying out self-propagating combustion synthesis to obtain the composite material with a porous structure.