Distributed exhaust device for exhausting gas of microfluid device and preparation method thereof

The invention relates to a device for exhausting gas of a microfluid device and a preparation method thereof, in particular to a distributed exhaust device for exhausting gas of a microfluid device and a preparation method thereof. In the device, metal or nonmetal sheets are respectively bonded on two surfaces of a macromolecule filter film, wherein a low surface energy material layer grows on thesurface of the macromolecule filter film which has a nano porous structure; and the metal or the metal sheets have micro pore canal structures and the outer surfaces of the metal or the metal sheetsare subjected to oxidation reaction to form a lyophilic layer; nano holes on the macromolecule filter film correspond to micro pore canals on the metal or metal sheets; and low surface energy substance lyophobic layers are modified on the inner walls of the micro pore canals. By leading the macromolecule filter film with the nano porous structure and the metal or the metal sheets with the micro pore ...

Ferroferric oxide nanometer particles with excellent water dispersancy and method for preparing same

The invention discloses a ferroferric oxide nano particle with excellent water dispersivity for use as an additive in a lubricating system. Ferroferric oxide nano particles obtained by a hydrolyzing method are coated with 10 to 50 nm hydrophilic polymer materials. The hydrophilic polymer material can be one of low molecular weight poly-acrylic acid, low molecular weight poly-ethylene glycol and low molecular weight poly-vinyl acetate. The diameters of the ferroferric oxide nano particles are between 20 and 100 nm. The ferroferric oxide nano particles with excellent water dispersivity of the invention can be formed with hydrophilic low polymer single-layer films on surfaces by a simple semi-continuous miniemulsion polymerization to form a water dispersion of ferroferric oxide nano particles with excellent water dispersivity. And the dispersion does not need further purification.

Small system for measuring resistance reducing performance of drainage surface

The invention discloses a small system for measuring the resistance reducing performance of a drainage surface, comprising a resistance reducing experimental platform, an image collector, a computer and a resistance reducing evaluating model stored in the computer, wherein the image collector is used for completely monitoring the movement process of a sample and recording video information; and the computer and the resistance reducing evaluating model are used for processing the information collected by the image collector by Adobe premiere software to obtain digital information FD=[S, T] output and analyzing the digital information FD by displacement-time relationship dV=dS/dT to obtain instantaneous speed dV.

Mine water bursting disaster monitoring and early-warning system and control method thereof

The invention relates to a mine water bursting disaster monitoring and early-warning system. The system comprises an in-situ measurement subsystem, a data acquisition subsystem, a data transmission control subsystem and a data and warning release subsystem. The in-situ measurement subsystem is connected to the data acquisition subsystem by a communication system, data input and output ports of the data acquisition subsystem are connected with the data input and output ports of the data transmission control subsystem by the communication system to realize bidirectional data transmission, and the data transmission subsystem is connected with the data and warning release subsystem by a computer network. The invention also relates to a control method of the mine water bursting disaster monitoring and early-warning system.

Production of special sectional flate steel for air-conditioner vane

Rye drink and its producing method

Green nitration method of prazoles intermediate

The invention relates to an environmental nitrification method of a La triazole intermediate compound. Acetyl nitrate is taken as nitrating agent, solid acid as catalytic agent, which are added with and directly stirred La triazole intermediate compound; the weight ratio between the solid acid and La triazole intermediate compound is 0.1-0.8 to 1; the molar ratio between acetyl nitrate and the Latriazole intermediate compound is 1-8 to 1. The compound liquid is reacted for 0.5 to 12 hours under the temperature of 0 to 100 DEG C; the reacted filtering liquid is put into ice water, is added with aqueous slkali to regulate the pH value and is extracted with organic solvent; the solvent is dried to obtain nitrification substance; the organic solid acid can be recycled after being filtered and can be reused. The invention has the advantages of simple operation, short reaction time, easy product separation, suitable for industrialized production, and is a high-efficient, energy-saving, no-pollution ...

Green nitration method of prazoles intermediate

The invention relates to an environmental nitrification method of a La triazole intermediate compound. Acetyl nitrate is taken as nitrating agent, solid acid as catalytic agent, which are added with and directly stirred La triazole intermediate compound; the weight ratio between the solid acid and La triazole intermediate compound is 0.1-0.8 to 1; the molar ratio between acetyl nitrate and the La triazole intermediate compound is 1-8 to 1. The compound liquid is reacted for 0.5 to 12 hours under the temperature of 0 to 100 DEG C; the reacted filtering liquid is put into ice water, is added with aqueous slkali to regulate the pH value and is extracted with organic solvent; the solvent is dried to obtain nitrification substance; the organic solid acid can be recycled after being filtered and can be reused. The invention has the advantages of simple operation, short reaction time, easy product separation, suitable for industrialized production, and is a high-efficient, energy-saving, no-pollution ...

Process for the separation of 2-hydroxymethyl-3, 5-dimethyl-4-methoxy pyridine

The invention relates to a method for separating an intermediate of omeprazole, namely 2-hydroxymethyl-3, 5-dimethyl-4-methoxy pyridine. The method comprises the following steps of: distilling and removing high polymer impurities from a 2-hydroxymethyl-3, 5-dimethyl-4-methoxy pyridine mother solution containing pyridine derivative, high polymer and other impurities by an evaporator, and then separating and removing the pyridine derivative impurities from the mixed solution through a rectifying tower to separate a product. The product obtained by the method has the advantages of high purity, simple and convenient separation method, manufacturing cost reduction, environmental pollution reduction and suitability for industrial production.

Mine water burst disaster monitoring and early-warning system and control method thereof

The invention relates to a mine water bursting disaster monitoring and early-warning system. The system comprises an in-situ measurement subsystem, a data acquisition subsystem, a data transmission control subsystem and a data and warning release subsystem. The in-situ measurement subsystem is connected to the data acquisition subsystem by a communication system, data input and output ports of the data acquisition subsystem are connected with the data input and output ports of the data transmission control subsystem by the communication system to realize bidirectional data transmission, and the data transmission subsystem is connected with the data and warning release subsystem by a computer network. The invention also relates to a control method of the mine water bursting disaster monitoring and early-warning system.

Hand held computer measurer

The utility model relates to a hand-held computer measurer, particularly a hand-held digital measuring recorder which utilizes a parallel port of a palmtop computer to complete the recording of the data acquisition. The communication protocol of the parallel port of the palmtop computer is defined newly. The utility model has the operating principle that the signal of the external non-electrical quantity is sent to the computer through the parallel port to carry out the data processing after A / D conversion and series / parallel conversion. The utility model has the characteristics of novel design idea, portability, easy installation, low cost, convenient operation, etc., and is suitable for field operations. The utility model is suitable for most measurements for the civil engineering and the mechanical engineering.

Ferroferric oxide nanometer particles with excellent water dispersancy and method for preparing same

The invention discloses a ferroferric oxide nano particle with excellent water dispersivity for use as an additive in a lubricating system. Ferroferric oxide nano particles obtained by a hydrolyzing method are coated with 10 to 50 nm hydrophilic polymer materials. The hydrophilic polymer material can be one of low molecular weight poly-acrylic acid, low molecular weight poly-ethylene glycol and low molecular weight poly-vinyl acetate. The diameters of the ferroferric oxide nano particles are between 20 and 100 nm. The ferroferric oxide nano particles with excellent water dispersivity of the invention can be formed with hydrophilic low polymer single-layer films on surfaces by a simple semi-continuous miniemulsion polymerization to form a water dispersion of ferroferric oxide nano particles with excellent water dispersivity. And the dispersion does not need further purification.

Preparation method of 5-difluoromethoxy-2-[[(3,4-dimethoxy-2-pyridyl)methyl]thio]-1H-benzimidazole

The invention provides a preparation method of 5-difluoromethoxy-2-[[(3,4-dimethoxy-2-pyridyl)methyl]thio]-1H-benzimidazole, which is characterized by taking 4-chloro-2-methyl-3-methoxy pyridine nitric oxides as raw materials to prepare the 5-difluoromethoxy-2-[[(3,4-dimethoxy-2-pyridyl)methyl]thio]-1H-benzimidazole in the following reaction steps. In the invention, the product prepared by the method is analyzed by using liquid chromatography and the chromatographic purity of the product is more than or equal to 98.0%. The preparation method provided by the invention is simple to operate, ensures high product purity, reduces the synthetic steps, dispenses with separation of the intermediate processes, can lower the production cost and reduce the environmental pollution and is suitable for industrial production.

Process for the separation of 2-hydroxymethyl-3, 5-dimethyl-4-methoxy pyridine

The invention relates to a method for separating an intermediate of omeprazole, namely 2-hydroxymethyl-3, 5-dimethyl-4-methoxy pyridine. The method comprises the following steps of: distilling and removing high polymer impurities from a 2-hydroxymethyl-3, 5-dimethyl-4-methoxy pyridine mother solution containing pyridine derivative, high polymer and other impurities by an evaporator, and then separating and removing the pyridine derivative impurities from the mixed solution through a rectifying tower to separate a product. The product obtained by the method has the advantages of high purity, simple and convenient separation method, manufacturing cost reduction, environmental pollution reduction and suitability for industrial production.

一种烷基烯酮二聚体的制造方法

... 本发明公开了一种烷基烯酮二聚体(AKD)的制造方法，其特征是在溶剂苯中进行反应，将过量的溶解于溶剂苯中的三氯化磷与高碳饱和脂肪酸反应生成高碳脂肪酸酰氯，将高碳饱和脂肪酸酰氯的苯溶液中加入三乙胺，反应生成烷基烯酮二聚体(AKD)。既可以提高反应速度，又有效地防止了采用乙醚作为溶剂的易挥发性造成的各种不良效应。 ...

Preparation method of water dispersible nano copper cooling lubricant for cold rolling

The invention discloses a preparation method of a water dispersible nano copper cooling lubricant for cold rolling. In the lubricant, oleate is used as a surfactant, divalent copper salt is used as a copper element, and hydrazine hydrate is used as a reducing agent. Nano copper is selected as a main raw material of the lubricant, and meanwhile, certain dispersant and surfactant are added to prepare the water dispersible nano copper cooling lubricant applicable to a cold rolling process. The invention aims at improving the lubricity of cold rolling, a friction surface can be primed and repaired to a certain extent through products of a friction chemical reaction, and thus, rolled steel has self repairing action.

Film with high heat conduction efficiency and antifouling capability and preparation method thereof

The invention relates to a film with high heat conduction efficiency and antifouling capability for a heater and a preparation method thereof, in particular to a film with special wettability based on the surface of metal or a metal alloy and a preparation method thereof. The film of the invention is obtained on the surface of the metal or the metal alloy for heat exchange by adopting a method combining an electrochemistry method, a hydro-thermal reaction method, a chemical vapor deposition method, a sol-gel method, a laser etching method and chemical vapor deposition, or a method combining laser etching and sol-gel; and by evaluation on the antifouling capability, the boiling process in water and the heat exchange efficiency of the film, various performances of the obtained metal or metal alloy heater containing the film of the invention are markedly improved compared with a metal or metal alloy heater without the film of the invention.

Small system for measuring resistance reducing performance of drainage surface

The invention discloses a small system for measuring the resistance reducing performance of a drainage surface, comprising a resistance reducing experimental platform, an image collector, a computer and a resistance reducing evaluating model stored in the computer, wherein the image collector is used for completely monitoring the movement process of a sample and recording video information; and the computer and the resistance reducing evaluating model are used for processing the information collected by the image collector by Adobe premiere software to obtain digital information FD=[S, T] output and analyzing the digital information FD by displacement-time relationship dV=dS/dT to obtain instantaneous speed dV.

Method for prefabricating pulverized-fuel-ash aggregate

The present invention provides a prefabricating method for a powder coal ash light aggregate. The main materials and the corresponding weight ratio in the aggregate are that: 1: 0.01 -1: 0.03: 8 of cement, adhesion agent and sand and water, cement: adhesion agent: sand. The standard of the water content is taken the optimal if making the light aggregate powder easy to be orbicular by the water content in the sand; the cement, adhesion agent, sand and water are added into a forced mixer for milling evenly and enough according to the weight ratio, and then the mixture is delivered into a ball-mould machine for molding. The ball mold is to be turned over after being kept with water for 48 hours, and then is to be dried in the shade after being kept with water for 25 days again. The present invention has the advantages of convenient material, low cost, excellent performance, even grain distribution, much higher intension, simple manufacturing process and low investment and so on.

FRAGMENTATION DISSOLVING METHOD OF NOBLE METAL

The present invention includes the procedures of mix-fusion and fragmetation of noble metal-bearing material with base metal fragmentizing agent at 700-1200 deg.C; extraction of fragmentized material by use of hydrochloric acid solution and aqueous solution chloridizing resolution of extracted dregs. It is characterized by that its used fragmentizing agent is an aluminium-zinc base alloy composite one. Its components are Al 10-90% and Zn 10-90%, or Al 10-80%, Zn 10-80%, and Cu 10-30%. The weight ratio of noble metal-bearing material to fragmentizing agent during fragmentation is 1:5-1:10. Said method can be used in fragmentizing resolution of noble metal bearing material, its fragmentation rate is high, fragmentation speed is fast and its process is simple.

Omeprazole enteric-coated micro-pill

The invention relates to an omeprazole enteric pellet which comprises a blank pellet core consisting of medical excipient, a main drug layer with omeprazole as an active component and an enteric layer consisting of crylic acid resin material and other medical excipients. The blank pellet core is made from starch and cane sugar. The omeprazole main drug layer covers over the blank pellet core, is made from omeprazole active component and the medical excipients, and does not contain antacid and surfactant. The omeprazole active component is powder with the grain diameter of 100 to 500nm. An insulating layer is arranged between the enteric layer and the main drug layer. The omeprazole enteric pellet has good stability of product and stable release speed, with the grain diameter being 0.5 to 1.5mm, does not contain antacid, surfactant and organic menstruum and is good for the health and safety of human bodies.

FRAGMENTATION DISSOLVING METHOF OF NOBLE METAL

Distributed exhaust device for exhausting gas of microfluid device and preparation method thereof

The invention relates to a device for exhausting gas of a microfluid device and a preparation method thereof, in particular to a distributed exhaust device for exhausting gas of a microfluid device and a preparation method thereof. In the device, metal or nonmetal sheets are respectively bonded on two surfaces of a macromolecule filter film, wherein a low surface energy material layer grows on the surface of the macromolecule filter film which has a nano porous structure; and the metal or the metal sheets have micro pore canal structures and the outer surfaces of the metal or the metal sheets are subjected to oxidation reaction to form a lyophilic layer; nano holes on the macromolecule filter film correspond to micro pore canals on the metal or metal sheets; and low surface energy substance lyophobic layers are modified on the inner walls of the micro pore canals. By leading the macromolecule filter film with the nano porous structure and the metal or the metal sheets with the micro pore ...

Channels and collaterals nonpain treatment belt

Non-pain treatment belt based on bioholographic medical theory is composed of a base belt, several Chinese-medicinal strips (bags) covering over base belt and magnetic plate whose number, length and width are same as strips. It is suitable for more diseases with high curative effect and low cost.

Prepn of alkyl ketene dimer

The preparation method of alkyl ketene dimer (AKD) is characterized by that its reaction is implemented in solvent benzol, and the excess phosphorus trichloride dissolved in solvent benzol is reactedwith high-carbon saturated fatty acid to form high-carbon fatty acid acyl chloride, then in the benzole solution of high-carbon saturated fatty acid acyl chloride the triethylamine can be added, theyare reacted to obtain the invented alkyl ketene dimer (AKD).

Film with high heat conduction efficiency and antifouling capability and preparation method thereof

The invention relates to a film with high heat conduction efficiency and antifouling capability for a heater and a preparation method thereof, in particular to a film with special wettability based onthe surface of metal or a metal alloy and a preparation method thereof. The film of the invention is obtained on the surface of the metal or the metal alloy for heat exchange by adopting a method combining an electrochemistry method, a hydro-thermal reaction method, a chemical vapor deposition method, a sol-gel method, a laser etching method and chemical vapor deposition, or a method combining laser etching and sol-gel; and by evaluation on the antifouling capability, the boiling process in water and the heat exchange efficiency of the film, various performances of the obtained metal or metalalloy heater containing the film of the invention are markedly improved compared with a metal or metal alloy heater without the film of the invention.

Rye drink an dits producing method

The present invention features that culture medium prepared with rye, rye bran, corn starch and water, bacteria strain liquid comprising lactic acid bacteria and saccharomycete is added; and through fermentation, separation, filtering, packing and other steps, rye drink is produced. The present invention is superior in that double bactteria strain fermentation makes it possible of full utilization of various organic matters, amino acids and trace elements in the material. The present invention is a functional health drink.

Cupric oxide nanoparticle having superior water dispersibility and preparation thereof

The invention discloses copper oxide nano-particles with well water dispersibility comprising: coating hydrophilic polymer materials with a thickness of 1-10 nm outside the surface of copper oxide nano-particles, wherein the hydrophilic polymer materials are selected from one of low polyacrylic acid, low potassium polyacrylate, low calcium polyacrylate, low zinc polyacrylate, low polyethyleneglycol or low polyvinyl acetate, the diameter of the copper oxide nano-particles is 60-140 nm. The copper oxide nano-particles with well water dispersibility of the invention are prepared by forming a hydrophilic oligomer single film on the surface of the copper oxide particles through a simple free radical polymerization method. The water dispersive solution of copper oxide nano-particles with well dispersiblity is directly prepared without further purify.

Cupric oxide nanoparticle having superior water dispersibility and preparation thereof

The invention discloses copper oxide nano-particles with well water dispersibility comprising: coating hydrophilic polymer materials with a thickness of 1-10 nm outside the surface of copper oxide nano-particles, wherein the hydrophilic polymer materials are selected from one of low polyacrylic acid, low potassium polyacrylate, low calcium polyacrylate, low zinc polyacrylate, low polyethyleneglycol or low polyvinyl acetate, the diameter of the copper oxide nano-particles is 60-140 nm. The copper oxide nano-particles with well water dispersibility of the invention are prepared by forming a hydrophilic oligomer single film on the surface of the copper oxide particles through a simple free radical polymerization method. The water dispersive solution of copper oxide nano-particles with well dispersiblity is directly prepared without further purify.

Preparation method of titanium dioxide and boron-doped diamond compounded photoelectric-synergetic electrode

The invention belongs to the field of photoelectric-synergetic electrodes, in particular to a preparation method of a titanium dioxide and boron-doped diamond compounded photoelectric-synergetic electrode. In the method, the boron-doped diamond is deposited on the surface of a TiO2 surface in a chemical vapor mode to prepare the titanium dioxide and boron-doped diamond compounded photoelectric-synergetic electrode. The photoelectric-synergetic electrode has good photoelectric-synergetic effects, such as better photoelectric conversion efficiency (about 3 percent), and the current intensity is increased by about 50 percent after illumination than that before illumination; and both the TiO2 and the diamond are nontoxic, have good biocompatibility and have the function of catalyzing and decomposing organic matters. The titanium dioxide and boron-doped diamond compounded photoelectric-synergetic electrode is expected to be applied to the field of photoelectric-synergetic organic matter catalysis ...

Liquid Crystal Phase Shifter Array, Driving Method Thereof, and Laser Scanner

The present disclosure provides a liquid crystal phase shifter array, a driving method thereof, and a laser scanner. The liquid crystal phase shifter array includes a plurality of liquid crystal phase shifter units arranged in array, a first substrate and a second substrate disposed opposite to each other, a liquid crystal layer provided between the first substrate and the second substrate, a first electrode provided on the first substrate, and a second electrode provided on the second substrate. Each liquid crystal phase shifter unit includes a first optical waveguide provided on a side of the first substrate proximal to the liquid crystal layer and arranged to be in direct contact with the liquid crystal layer. 1. A liquid crystal phase shifter array , comprising:a plurality of liquid crystal phase shifter units arranged in array;a first substrate and a second substrate disposed opposite to each other;a liquid crystal layer provided between the first substrate and the second substrate;a first electrode provided on a side of the first substrate proximal to the liquid crystal layer; anda second electrode provided on a side of the second substrate proximal to the liquid crystal layer,wherein each of the plurality of liquid crystal phase shifter units comprises:a first optical waveguide provided on the side of the first substrate proximal to the liquid crystal layer and arranged to be in direct contact with the liquid crystal layer.2. The liquid crystal phase shifter array of claim 1 , wherein the first optical waveguide comprises a first base claim 1 , and a first waveguide tube provided on a side of the first base proximal to the liquid crystal layer claim 1 , andwherein the first waveguide tube has a refractive index n1, and the first base has a refractive index n2.3. The liquid crystal phase shifter array of claim 2 , further comprising:a second optical waveguide provided on the side of the first substrate proximal to the liquid crystal layer, and coupled to the ...

Liquid crystal phase shifter, method for producing the same and method for shifting phase of electromagnetic wave

A liquid crystal phase shifter, a method for producing the same and a method for shifting phase of electromagnetic wave are provided. The liquid crystal phase shifter includes: a first base substrate and a second base substrate opposed to each other; a first liquid crystal modulation portion and a second liquid crystal modulation portion between the first base substrate and the second base substrate; a first electromagnetic wave transport layer between the first base substrate and the first liquid crystal modulation portion; and a second electromagnetic wave transport layer between the first base substrate and the second liquid crystal modulation portion. The first liquid crystal modulation portion is configured to modulate a phase of electromagnetic waves in a first frequency range and the second liquid crystal modulation portion is configured to modulate a phase of electromagnetic waves in a second frequency range different from the first frequency range.

Method for generating reply message, electronic device and storage medium

The present disclosure provides a method for generating a reply message. The method includes: acquiring a current application scene of a user; acquiring a target object type in conversation with the user; generating at least one candidate reply content corresponding to the application scene and matching with the target object type in an expression style; and adjusting the expression style of the candidate reply content according to an expression style of the user on historical content, to generate at least one target reply content.

Liquid crystal phase shifter, method for producing the same and method for shifting phase of electromagnetic wave

A liquid crystal phase shifter, a method for producing the same and a method for shifting phase of electromagnetic wave are provided. The liquid crystal phase shifter includes: a first base substrate and a second base substrate opposed to each other; a first liquid crystal modulation portion and a second liquid crystal modulation portion between the first base substrate and the second base substrate; a first electromagnetic wave transport layer between the first base substrate and the first liquid crystal modulation portion; and a second electromagnetic wave transport layer between the first base substrate and the second liquid crystal modulation portion. The first liquid crystal modulation portion is configured to modulate a phase of electromagnetic waves in a first frequency range and the second liquid crystal modulation portion is configured to modulate a phase of electromagnetic waves in a second frequency range different from the first frequency range.

Binder composition, positive electrode plate, secondary battery, and electric apparatus

This application provides a binder composition. The binder composition includes a first fluoropolymer and a second fluoropolymer, where the first fluoropolymer includes polyvinylidene fluoride with a weight-average molecular weight of 1,500,000-5,000,000, and a weight-average molecular weight of the second fluoropolymer does not exceed 600,000. The binder composition has good processability, achieves high adhesion force for the electrode plate when added in small amounts, and improves the cycling performance of the battery.

Binder composition, positive electrode plate, secondary battery and electric device

This application provides a binder composition. The binder composition includes a first fluoropolymer and a second fluoropolymer, where the first fluoropolymer includes polyvinylidene fluoride with a weight-average molecular weight of 5000000-9000000, and a weight-average molecular weight of the second fluoropolymer is not greater than 600000. Featuring good processability, this binder composition, even added in small amounts, can provide electrode plates with great adhesion force and improve the cycling performance of a battery.

Binder composition, positive electrode plate, secondary battery, and electric apparatus

This application provides a binder composition. The binder composition includes a first fluoropolymer and a second fluoropolymer, where the first fluoropolymer includes polyvinylidene fluoride with a weight-average molecular weight of 1,500,000-5,000,000, and a weight-average molecular weight of the second fluoropolymer does not exceed 600,000. The binder composition has good processability, achieves high adhesion force for the electrode plate when added in small amounts, and improves the cycling performance of the battery.