44results about How to "Suitable for actual production applications" patented technology

The invention discloses a controlled manufacturing method for a shark imitated drag reduction surface structure under a variable environment. The method comprises the following steps of: 1, preparing an original-ratio sharkskin biological female template; 2, designing shape parameters of a deformed imitated shark required to be manufactured according to the requirement of an application environment; and 3, preparing a variable-proportion bionic drag reduction skin according to the application environment. The variable-proportion bionic sharkskin shaped drag reduction skin prepared by using the method has a functional structure completely in accordance with the original sharkskin shape, but has different shape parameters. By using the method for making the bionic drag reduction skin, the size of the surface shape of the skin can be adjusted according to the parameters such as common speed, different parts of the outer surface and the medium viscosity of an application object, so that the drag reduction effect of the shark imitated drag reduction skin is in an optimal state. The method has high practical value and broad application prospect in the technical field of bionic manufacturing.

The invention relates to a pipe bending method, in particular to a bending method of pipes with a flexible chained-ball mandrel and solves the problem that high bending degree in the existing process of bending pipes having a mandrel causes mutual interference. The method includes: 1, threading a plurality of balls with a rope having a restraint ring at one end; 2, inserting a combined flexible chained-ball mandrel into a pipe to be bent; 3, placing a first rubber plug into one end of the pipe to be bent, fastening the first rubber plug through a first fastener, placing a second rubber plug into the other end of the pipe to be bent, and fastening the second rubber plug through a second fastener; 4, placing the pipe to be bent, onto a female die, and driving a male die to move down by a press until the pipe to be bent is bent; 5, after bending, loosening the first fastener, the second fastener, the first rubber plug and the second rubber plug to obtain a bent pipe. The bending method of pipes with one flexible chained-ball mandrel is applicable to pipe bending.

The invention discloses a preparation method of monodisperse porous silicon dioxide microspheres, which comprises the following steps: hydrolyzing ethyl orthosilicate under alkaline conditions to generate nano solid silicon dioxide microspheres, and carrying out hydrothermal treatment to implement solid-to-porous transition, thereby obtaining the monodisperse porous silicon dioxide microsphere material with controllable microsphere diameter / pore size and favorable biocompatibility. The preparation method is simple, and has the advantages of mild reaction conditions and no harm to the environment. The prepared porous silicon dioxide microspheres have favorable monodispersity and biocompatibility, and can be widely used in the fields of biomedicine, catalytic carriers and the like.

The invention provides a paper feeding mechanism internally moving type double-station particulate matter monitoring device. The device comprises a sampling mechanism, a detecting mechanism and a paper feeding mechanism, the sampling mechanism comprises a sampling tube, the upper end of the sampling tube is connected with a cutter, and the lower end of the sampling tube is connected with an enrichment nozzle; a measuring mechanism comprises a beta ray emitting source and a beta ray photomultiplier tube; the paper feeding mechanism is mounted on guide rails and driven by a moving driving mechanism to move left and right along the guide rails; the paper feeding mechanism comprises a fixing plate, a paper placing wheel, a paper collecting wheel and two guiding wheels are mounted on the fixingplate, and the paper collecting wheel is driven by a paper tape drive mechanism to rotate. According to the double-station particulate matter monitoring device, paper tapes move in one direction, andas long as the paper tapes between the paper collecting wheel and a paper conveying wheel have proper winding tightness, a paper pressing wheel is not needed to press the paper tapes. The movement ofthe paper tapes between sampling stations depends on the overall movement of the paper feeding mechanism, the movement is fast and accurate, paper is unlikely to break, and monitoring of the concentration of particulate matter can be continuously performed for a long time.

The invention relates to a silicon nanometer optical waveguide and optical fiber coupling and encapsulation method in the technical field of optical integrated chip coupling and encapsulation. In order to realize the high efficiency optical coupling and easy encapsulation of silicon optical waveguide and optical fiber, the invention provides the silicon nanometer optical waveguide and optical fiber coupling and encapsulation method. A back taper spot-size converter is used to realize the conversion from a small-sized spot-size in the silicon nanometer optical waveguide to a big-sized spot-size of the optical fiber; and the alignment coupling and the easy encapsulation of the silicon nanometer optical waveguide and the optical fiber is realized through the selfalignment characteristic of aV-shaped optical fiber positioning notch. The high efficiency of the back taper spot-size converter, the broadband optical coupling characteristic and the optical mode field size conversion capability are integrated with the SOI substrate characteristic and the V-shaped optical fiber positioning notch so as to realize the accurate central alignment and high efficiency optical coupling of the waveguide and the optical fiber; and in addition, the optical fiber fixing and encapsulation process is easy and convenient and is quite suitable for the application of actual production.

The invention discloses a lower alcohol detecting probe, and a preparation method and application of the detecting probe, and belongs to the technical field of analytical chemistry detection. The lower alcohol detecting probe has a general formula shown in the description, in which R1 represents a hydrogen atom, R2 represents a nitrogen atom or a group shown in the description and R3 represents a hydrogen atom or a methoxy group. Probe molecules of the lower alcohol detecting probe are made into a detecting plate, the detecting plate turns red or pink after being reacted with lower alcohol, and the phenomenon is obvious and can be recognized by naked eyes; the lower alcohol detecting probe is convenient for use and low in cost, can be directly used for detecting lower alcohol in a solution, can detect lower alcohol rapidly and in real time, is suitable for being used in large scale actual production, and has a good application prospect in the environmental protection field; and the lower alcohol detecting probe avoids the problem that professionals need to use professional tools and software for a long time to obtain results by means of large-scale equipment.

The invention discloses a naked eye visual colorimetric method-based probe {7-hydroxy-3-[(3-pyridine methylene) imine]-2H-1-benzopyran} for detecting nickel ions in an aqueous medium and a probe-based nickel ion detection kit and test paper. The nickel ion probe can be synthetized only by a three-step reaction; a detection mechanism is based on a complexing reaction; and the nickel ions in a solution can be detected by using a naked eye visual colorimetric method. The nickel ion detection kit provided by the invention comprises a reagent stock solution 1 and a reagent stock solution 2, wherein the reagent stock solution 1 is used as a buffer solution, and the reagent stock solution 2 is used as a nickel ion probe solution. The nickel ion detection test paper provided by the invention comprises the 7-hydroxy-3-[(3-pyridine methylene) imine]-2H-1-benzopyran and a solid carrier. The naked eye visual colorimetric method-based probe for detecting the nickel ions in the aqueous medium is capable of realizing the high-sensitivity and high-selectivity detection on trace nickel ions in the aqueous medium, has convenience in detection and visual judgment, and has a huge application prospect in the environmental-protection field.

The invention relates to a method for manufacturing larger-area anti-adsorption surface with an emulational shark skin appearance, comprising two steps: (1) manufacturing a rolling female template device; and (2) manufacturing the anti-adsorption surface by adopting the ultraviolet-light curing technology. The ultraviolet-light curing technology is used for curing material rapidly to form the surface in a needed structure by using the sensitivity of the material to ultraviolet light. The micro embossing moulding method is used for rapidly carrying out micro-replication and nano-replication to structural patterns under the micro-nano scale with low cost. The method uses the ultraviolet-light curing technology and the micro embossing moulding technology to manufacture the larger-area anti-adsorption surface with the emulational shark skin appearance. The method has good practical value and wide application prospect in the technical field of biomimetic manufacturing.

The invention belongs to the technical field of composite material processing, and particularly relates to an appropriate-temperature cutting real-time control method of a composite material. The appropriate-temperature cutting real-time control method comprises the steps of: establishing an appropriate-temperature cutting real-time control system of the composite material, and spraying an ultralow-temperature gas to a cutting zone by using an atomizing nozzle; measuring temperature of the cutting zone in real time by means of a thermocouple near the workpiece cutting zone on the basis of reducing the cutting temperature, and feeding back the temperature of the cutting zone to a displacement platform controller; adjusting the distance between the cutting zone and the atomizing nozzle installed on a displacement platform in real time by taking the temperature of the cutting zone as a signal, adjusting the temperature of the cutting zone to be equal to an expected value, and achieving the effect of cutting the material within an appropriate temperature interval, so as to obtain the optimal processed surface quality. The appropriate-temperature cutting real-time control method realizes the purpose of directly controlling the temperature of the cutting zone, is fast in temperature adjusting speed, can ensure the high efficiency and accuracy of temperature control, is used for direct adjustment in an open space, and is more suitable for actual production application.

The invention discloses a probe-N,N-dis(4-diethylamine salicylidene)ethylenediamine for detecting manganese ions in water quality based on a naked eye visual colorimetry and a manganese ions detection kit and a test paper based on the probes. The manganese ions probe can be synthesized by one step reaction, a detection mechanism is based on the complexing reaction, and the naked eye visual colorimetry is used for detecting the manganese ions in a liquid to be measured. The manganese ions detection kit comprises a reagent storage liquid 1 and a reagent storage liquid 2, wherein the reagent storage liquid 1 is a HEPES buffer, and the reagent storage liquid 2 is a solution of N,N-dis(4-diethylamine salicylidene)ethylenediamine. The manganese ions detection test paper is composed of the N,N-dis(4-diethylamine salicylidene)ethylenediamine and a solid carrier. The invention can realize a rapid quantitative or semi-quantitative detection with high sensitivity and high selectivity for microscale manganese ions in the water quality. The probe has the advantages of simple synthesis route and low cost, and has large application prospect in the environmental protection field.

The invention relates to a pipe bending method, in particular to a bending method of pipes with a flexible chained-ball mandrel and solves the problem that high bending degree in the existing process of bending pipes having a mandrel causes mutual interference. The method includes: 1, threading a plurality of balls with a rope having a restraint ring at one end; 2, inserting a combined flexible chained-ball mandrel into a pipe to be bent; 3, placing a first rubber plug into one end of the pipe to be bent, fastening the first rubber plug through a first fastener, placing a second rubber plug into the other end of the pipe to be bent, and fastening the second rubber plug through a second fastener; 4, placing the pipe to be bent, onto a female die, and driving a male die to move down by a press until the pipe to be bent is bent; 5, after bending, loosening the first fastener, the second fastener, the first rubber plug and the second rubber plug to obtain a bent pipe. The bending method of pipes with one flexible chained-ball mandrel is applicable to pipe bending.

The invention aims at providing a pinfin drivepipe type reinforced heat transfer element, which comprises two two-way adapter connectors, a groove drivepipe, a pinfin pipe; the two two-way adapter connectors are respectively connected with the two ends of the pinfin pipe; the pinfin pipe is provided with an inner channel; the parts of the two-way adapter connectors connected with the pinfin pipe are inserted in the inner channel of the pinfin pipe; the groove drivepipe is externally sleeved on the pinfin pipe; each of the two-way adapter connectors comprises a first channel and a second channel; the first channel is communicated with a ring gap formed by the pinfin pipe and the groove drivepipe; and the second channel is communicated with the inner channel of the pinfin pipe. The pinfin drivepipe type reinforced heat transfer element provided by the invention has the advantages of good heat transfer property, reasonable structure, no bypass leakage flow and long service life and being safe and reliable.

The invention discloses a preparation method of an iopromide intermediate, which comprises the following steps: (I) mixing a compound 2, a first solvent and methoxyacetyl chloride, the first solvent being selected from DMA and / or DMF; (II) continuously adding an acid-binding agent and 3-amino-1, 2-propylene glycol into the system after the reaction in the step (I), adding the reaction liquid into a third solvent for crystallization after the reaction is finished, and adding a second solvent into the reaction liquid before or simultaneously adding the reaction liquid into the third solvent. The method has the advantages of efficient and convenient synthesis process, high yield and high product purity, can greatly reduce the production cost, is more suitable for actual production and application, and is applied to preparation of iopromide.

The invention provides a hypocrella bambusae medicinal material and a quality control method of a preparation thereof. The method is characterized in that: hypocrellin A, hypocrellin B and hypocrellin C serve as reference substances and are identified by thin-layer chromatography method to realize the quality control. In the thin-layer chromatography, silica gel G is taken as an adsorbent and dichloromethane-toluene-ethyl acetate-butanone is taken as a developer in the ratio of 40 to 5 to 1 to 1. In the method, the judgment indicator is visual and definite, and the identification result is objective and reliable. The method has the advantages of comprehensive contrast, high specificity and high accuracy, and is used for identifying the hypocrella bambusae medicinal material, and a medicinal preparation and a daily health product prepared from the hypocrella bambusae medicinal material serving as a raw material.

The invention belongs to the technical field of material preparation and metal ion detection, and relates to rhodamine B-based water-soluble polymer colorimetric probes directly used for detecting Cu<2+> in a water medium as well as a piece of Cu<2+> detecting test paper based on the water-soluble polymer probes. The rhodamine B-based water-soluble polymer is formed by virtue of reaction of a rhodamine B derivative and carboxyl-terminated methoxy polyethylene glycol, has good water solubility, can selectively detect Cu<2+> in the pure water medium, and can reach visual colorimetric detection effects by virtue of color change of detected liquor from colorless to colored.

The invention discloses a GaN transistor covered with a nanopillar barrier and a preparation method thereof. AlxGa1-xN alloy nanopillars are distributed on the surface of the barrier layer of a transistor and correspond to screw dislocations in the barrier layer one to one. The method, by controlling the TMGa flow rate and the V / III ratio during the growth of AlxGa1-xN barrier, not only can avoidthe formation of V-shaped defects at the termination of screw dislocations, but also can form 1-3 nm AlxGa1-xN alloy nanopillars at the termination of screw dislocations. As the alloy nanopillars fillthe V-shaped defects at the termination of screw dislocations on the barrier surface and increase the effective barrier thickness at the termination of the screw dislocations, the gate leakage current is suppressed and the withstand voltage characteristic of the transistor is improved.

The invention discloses a ceramic dielectric material, a ceramic capacitor and a preparation method thereof, and belongs to the technical field of materials. The ceramic dielectric material comprises the following components in percentage by molar mass: 94.0-98.0% of barium titanate, 1.2-2.5% of a glass phase, 0.5-1.0% of an anti-reducing agent, 0.5-1.5% of an alkali metal compound and 0.5-3.0% of an oxide of a rare earth element, the oxides of the rare earth elements comprise Dy2O3, Y2O3 and Tm2O3, and the obtained ceramic dielectric material has stable capacitance characteristics, high dielectric constant and high temperature stability and is easier to laminate; the ceramic capacitor is formed by sintering a ceramic dielectric material serving as a raw material, the obtained ceramic capacitor meets the X5R standard, and the influence of sharp capacitance change caused by the temperature can be well stabilized within the normal temperature section; meanwhile, the preparation methods of the ceramic dielectric material and the ceramic capacitor provided by the invention are simple, simple and convenient to operate and free of toxic and harmful substances, and the prepared ceramic capacitor is high in density, small in crystal grain, few in defect and suitable for actual production and application.

The invention provides a method for regulating and controlling the creep anisotropy of cold-rolled pre-deformed alloys. The method adopts non-equal cross-rolling to carry out two cold-rolls on the aluminum alloy plate, and through the The creep anisotropy is controlled by the ratio of deformation amount, which specifically includes: solid solution of the aluminum alloy sheet; water quenching of the aluminum alloy sheet after solid solution; two cold rolling of the water quenched aluminum alloy sheet, and then Perform creep age forming. The present invention adopts the method of non-equal cross rolling and can greatly reduce the creep aging anisotropy of the aluminum alloy material under the premise of maintaining a relatively high creep aging deformation efficiency of the aluminum alloy material. The operation method is simple and suitable for actual production applications. High-efficiency and high-precision forming and manufacturing of aluminum alloy components can be realized.

The invention relates to the technical field of tobaccos, and discloses a measurement method for the content of moisture in a tobacco and a tobacco product. The measurement method comprises the following steps: performing programmed temperature rising by placing a tobacco sample in a thermogravimetric analyzer, recording a thermogravimetric curve when the measured tobacco sample loses the moisture in the scientifically designed heating process, and calculating the content of the moisture of the tobacco product according to weight loss, wherein the programmed temperature rising is carried out from room temperature to 110 DEG C at the speed of 50 DEG C / min, the constant temperature is kept for 8 minutes, the operating time lasts about 9.8 minutes, and moisture content results of the tobacco and the tobacco product can be acquired accurately. The moisture content detected by adopting the method disclosed by the invention is basically consistent with a result obtained by adopting a drying oven method stipulated by the conventional detection standard in the field. Compared with the drying oven method, for the measurement method disclosed by the invention, the sample amount of the method disclosed by the invention is small, the time consumption is low, and any pre-treatment is not required to be performed on the sample. The measurement method has the high repeatability and an important actual application popularization value.

The invention discloses a preparation method of monodisperse porous silicon dioxide microspheres, which comprises the following steps: hydrolyzing ethyl orthosilicate under alkaline conditions to generate nano solid silicon dioxide microspheres, and carrying out hydrothermal treatment to implement solid-to-porous transition, thereby obtaining the monodisperse porous silicon dioxide microsphere material with controllable microsphere diameter / pore size and favorable biocompatibility. The preparation method is simple, and has the advantages of mild reaction conditions and no harm to the environment. The prepared porous silicon dioxide microspheres have favorable monodispersity and biocompatibility, and can be widely used in the fields of biomedicine, catalytic carriers and the like.

The invention discloses an aluminum alloy anode material for an aluminum / air battery and a preparation method of the aluminum alloy anode material. The aluminum alloy anode material mainly comprises several or more of the following components: 0.1 to 1.0 wt% of Mg, 0.01 to 0.9 wt% of Sn, 0.01 to 0.1 wt% of Ga, 0.01 to 0.5 wt% of Li, 0.01 to 0.5 wt% of B, 0.0 to 0.1 wt% of Na, 0.0 to 0.1 wt% of K,0.0 to 0.1 wt% of Zr, 0.0 to 2.0 wt% of RE, and the balance Al. The aluminum alloy anode material is excellent in corrosion resistance in alkaline electrolyte and good in electrochemical activity, thehydrogen evolution corrosion rate is smaller than or equal to 0.017 mL.cm<-2>.Min<-1>, the open-circuit potential is smaller than or equal to -1.92 V (vs.SCE), and the anode utilization rate is larger than or equal to 95%. The aluminum alloy anode material has the advantages of excellent comprehensive performance, simple preparation and the like.

The invention discloses a formaldehyde quick detection reagent, a preparation method and an application thereof. A chemical name of the formaldehyde quick detection reagent is 2-amino-3-(3-amino-1H-benzo[d]imidazole)-pyridine of which a chemical structure formula is represented as the formula I. The preparation method comprises following steps: (1) carrying out a reaction to a mixture consisting of nicotinamide and ammonium sulfamate in oil bath at 200 DEG C for 6 hours to obtain an intermediate 3; (2) performing temperature-increasing reflux to the intermediate 3 in an acid environment for 4 hours, cooling the intermediate 3 to room temperature and adjusting the pH value to 7-8 to obtain an intermediate 2; and (3) carrying out a reaction to the intermediate 2 with 1,2,4-triaminobenzene to obtain a target product. The reagent prepared according to the method hereinbefore can quite easily detect the concentration of formaldehyde. The formaldehyde quick detection reagent is simple in synthetic route, is low in cost, is convenient to use, is suitable for actual production application, is high in probe responding speed and is high in sensitivity. The reagent can achieve quick detection quantitatively and high-sensitively of the formaldehyde in environment and foods.

The invention discloses a high-hardness Cu-based material containing interface layers and a preparation method thereof. The material comprises Cu matrix layers and the interface layers, wherein the Cumatrix layers and the interface layers are alternately superposed; an initial layer and a final layer are Cu layers; the interlayer modulation ratio is 10:1-50:1; the interface layers are Nd, Zr, Ag,CuZr amorphous and CuNb amorphous; the thicknesses of the Cu layers are the same; the thickness range of the single Cu layer is 5-50 nm; the thicknesses of the interface layers are the same; and thethickness range of the single interface layer is 0.5-2 nm. The prepared high-hardness Cu-based material has such mechanical properties as higher hardness; and the interface layers generate no side effect on the matrix Cu. The preparation method of the Cu-based material is simple in production process, low in cost and suitable for industrial application and automatic batch production, and has unique structure and performance advantages in such fields as microelectronic components, power transmission devices, integrated circuits and printed circuits.

The invention discloses a lower alcohol detecting probe, and a preparation method and an application of the detecting probe, and belongs to the technical field of analytical chemistry detection. The lower alcohol detecting probe has a general formula in which R1 represents a hydrogen atom, R2 represents a nitrogen atom or group, and R3 represents a hydrogen atom or a methoxy group. Probe molecules of the lower alcohol detecting probe are made into a detecting plate, the detecting plate turns red or pink after being reacted with lower alcohol, and the phenomenon is obvious and can be recognized by naked eyes; the lower alcohol detecting probe is convenient for use and low in cost, can be directly used for detecting lower alcohol in a solution, can detect lower alcohol rapidly and in real time, is suitable for being used in large scale actual production, and has a good application prospect in the environmental protection field; and the lower alcohol detecting probe avoids the problem that professionals need to use professional tools and software for a long time to obtain results by means of large-scale equipment.

The invention provides a method for regulating and controlling the creep anisotropy of a cold-rolled pre-deformed alloy. In the method, two times of cold rolling is carried out on an aluminum alloy plate by adopting a non-equal-ratio cross rolling mode, and the creep anisotropy is regulated and controlled through the deformation proportion between the two times of cold rolling. The method specifically comprises the following steps that solid solution is carried out on the aluminum alloy plate; the aluminum alloy plate obtained after solid solution treatment is subjected to water quenching; and the aluminum alloy plate obtained after water quenching is subjected to cold rolling twice, and then creep age forming is conducted. According to the method, the non-equal-ratio cross rolling method is adopted, the creep aging anisotropy of the aluminum alloy material can be greatly reduced on the premise that the high creep aging deformation efficiency of the aluminum alloy is kept, the operation method is simple and convenient, the method is suitable for actual production and application, and high-efficiency and high-precision forming and manufacturing of the aluminum alloy component can be achieved.

The invention discloses a high electron mobility field effect transistor (HEMT) epitaxial structure and a method thereof prepared by growing a p-i-n multi-quantum well heterojunction and having a high-resistance GaN-based buffer layer. Taking advantage of the large difference between the spontaneous polarization intensities of AlN and GaN, polarized doping is achieved by growing AlGaN with a graded Al composition to obtain p-type Al x Ga 1‑x N-layer and n-type Al z Ga 1‑z N layer and fixed component Al by high temperature growth y Ga 1‑y N layer, so as to obtain a p-i-n multi-quantum well heterojunction, in the p-i-n heterojunction, due to the existence of the built-in electric field, the i layer is a completely depleted region, thereby obtaining a low-carrier concentration The high-resistance GaN-based buffer layer can effectively reduce the leakage current of the buffer layer, and at the same time improve the crystal quality of the epitaxial material to improve the high-voltage characteristics of the device and reduce the useless power consumption of the device, which is suitable for practical production applications.

Disclosed are a GaN transistor having a barrier covered by nanopillars and a preparation method therefor. AlxGa1-xN alloy nanopillars are distributed on the surface of a barrier layer of the transistor, and the nanopillars have one-to-one correspondence to screw dislocations in the barrier layer. According to the present invention, by controlling the TMGa flow rate and the V / III ratio in the growth process of an AlxGa1-xN barrier, the formation of V-shaped defects at termination positions of the screw dislocations can be avoided, and 1-3 nm AlxGa1-xN alloy nanopillars can be formed at the termination positions of the screw dislocations. As the V-shaped defects at the termination positions of the screw dislocations on the barrier surface are filled by the alloy nanopillars, the effective barrier thickness at the termination positions of the screw dislocations is increased, so that the gate leakage current is effectively suppressed and the withstand voltage characteristic of the transistor is improved.

The invention discloses an anode and cathode diaphragm malposition detection method for a lamination cell. The anode and cathode diaphragm malposition detection method for the lamination cell comprises the following steps: 1) irradiating by two-time complementary X-ray light, and calculating the malposition length L and the malposition width W on an anode and cathode diaphragm angular position A by malposition numerical values D1 and D2 measured by two-time irradiation and an angle alpha of incidence; 2) with the same method, measuring the malposition length L' and the malposition width W' of an anode and cathode diaphragm on a cell angular position B to be detected; and 3) comparing the measured L, W, L' and W' with the specified anode and cathode diaphragm malposition specification to judge whether the cell to be detected is a qualified product. According to the anode and cathode diaphragm malposition detection method for the lamination cell, which is disclosed by the invention, a detection method of double angles of incidence and double angular positions, the anode and cathode diaphragm malposition distance of the lamination cell is detected, poor malposition cell erroneous judgment which has big possibility of happening in the traditional single angle detection method and potential safety hazards caused by erroneous judgment can be effectively avoided, and therefore safety risks caused by the insufficient anode and cathode diaphragm malposition of a finished product battery is lowered.