30results about How to "No complicated steps" patented technology

The invention relates to a method for treating methylene blue dye wastewater. Firstly, diatomite is evenly mixed with calcium raw materials, alkali activator and water, and is put in a high-pressure hydrothermal reaction kettle after the compression molding to react for 1-48 hours at the temperature of 100-200 DEG C to obtain a diatomite-based porous adsorbent containing C-S-H, tobermorite and analcite; then, the diatomite-based porous adsorbent is put in a conical bottle accommodated with a liquid culture medium; 5-20% of yeast powder by mass is added to regulate the pH to be 5-8 and to cultivate for 2-48 h under the constant-temperature condition of 15-35 DEG C on a reciprocal shaking table with the speed of 60-120 rpm so as to obtain a yeast-loaded diatomite-based porous adsorbent; finally, 1-10 g of the yeast-loaded porous adsorbent is added in the methylene blue dye wastewater with per liter concentration of 100-1000 mg / L to treat for 1-48 h at the temperature of 25-45 DEG C on the reciprocal shaking table with the pH of 4 to 10 and the speed of 60-120 rpm; the concentration of the treated methylene blue wastewater is measured through a spectrophotometer method; the result shows that the removal rate of the methylene blue dye exceeds 90%. The method has the advantages of simple process, low cost and no secondary pollution, and is suitable for the industrial treatment of the methylene blue dye wastewater.

The invention discloses a prostate puncture device, which relates to the field of medical equipment. The technical proposal includes a base, a chute is arranged on the base, and the upper side of the base is sequentially slid to connect a prostate support mechanism and a puncture needle through the chute. The prostate support mechanism is located at the puncture needle. On the front side of the needle tip, the prostate supporting mechanism and the puncture needle are slidingly connected to the chute through a supporting rod; the prostate supporting mechanism includes an outer cylinder, which is a hollow cylinder with two ends open, and the inner component is sleeved inside the outer cylinder; the support component The rear end is hinged with the front end of the inner rod. The beneficial effects of the present invention are: the device is easy to use, without complicated operation steps, the relatively smooth outer tube of the device is easier to enter the patient's anus, and the support assembly of the device can be deployed after the device enters the human body, thereby reducing the patient's It is painless and ensures sufficient supporting area and strength for the prostate.

The invention discloses a multi-level structure material in which boron-doped cobalt hydroxide is supported on a porous copper substrate, and relates to the field of preparation of catalytic materials. The tertiary structure of nano-sheets, the present invention also provides the preparation method of the above-mentioned multi-level structure material, it supports porous copper layer by electrodeposition, then supports cobalt hydroxide nano-sheet layer by electrodeposition, finally through sodium borohydride-electrochemical combination Boronation realizes the boration of cobalt hydroxide nanosheets; the beneficial effect of the present invention is that the prepared multi-level structure material has abundant active sites, convenient electron transport and solution mass transfer channels, and is a series of electrochemical, chemical Excellent multi-level structure catalyst required for the reaction.

The invention discloses a method for measuring the junction temperature and thermal resistance of a metal-oxide semiconductor tube. The method comprises the following steps of: placing an insulating substrate with a device to be measured into a temperature control box, and adjusting the temperature control box to 25 DEGC; applying a DC (direct current) voltage to the drain end and source end of the device to be measured, and applying a grid DC working voltage to the grid; measuring the current at the drain and source ends of the device to be measured when the voltage on the grid is a DC working voltage; removing the DC working voltage on the grid; applying a square-wave pulse voltage to the grid; gradually increasing the temperature in the temperature control box, wherein the maximum temperature does not exceed the junction temperature of the measured device; continuously measuring the leakage current at the drain and source ends of the device to be measured; and when the measured leakage current at the drain and source ends of the device to be measured is equal to the current at the drain and source ends of the device to be measured, calculating the thermal resistance of the device to be measured by taking the temperature in the temperature control box as an equivalent junction temperature.

The invention discloses a method for preparing high-purity multicolor carbon dots by regulating and controlling the appearance of carbon nanocrystals and an application of the method. The method comprises the following steps: a) weighing 0.2-0.3 g of o-aminophenol, metering 18-22 ml of an alcohol solution, and dissolving the o-aminophenol in the alcohol solution; b) after the o-aminophenol is completely dissolved, transferring the solution into a 50 ml hydrothermal synthesis kettle with polytetrafluoroethylene lining to perform a reaction for 15-18 hours in a muffle furnace at the temperatureof 150-180 DEG C, thus forming a brown solution with fine suspended particles after the reaction is finished; and c) centrifuging the solution at 4000 r / min, collecting a solid from bottom layer, anddrying the solid to obtain the carbon nanocrystals, and d) dissolving the carbon nanocrystals in a solvent with corresponding polarity to prepare the high-purity multicolor carbon dots. The preparation method has the advantages of simple, cheap and easily available raw materials, mild experimental conditions, no complicated steps, convenience and easiness in operation.

The invention discloses a portable lost article tracker. The portable lost article tracker comprises a handheld remote controller capable of generating ultrasonic waves and a responding device used for receiving the ultrasonic waves, emitting light and producing a sound; the responding device is provided with a clamping device connected with a lost article, and the clamping device is composed of a rectangular square barrel, specially-made screws arranged in the square barrel, T-shaped rods connected to the specially-made screws in a threaded mode, a first clamping plate hinged to a wall plate on one side of the square barrel and a second clamping plate hinged to the T-shaped rods. The portable lost article tracker has the advantages that people can be guided to quickly find out the lost article through lighting emitting and sound producing, the clamping device can be adjusted according to the sizes and the shapes of articles prone to be lost so as to better adapt to the articles with the different sizes and shapes and can be folded up when not used, and carrying is convenient.

The invention relates to a method for preparing high-alkalinity chromium-containing vanadium-titanium pellets by adopting calcium oxide. The method comprises the following steps of mixing the raw materials including vanadium titano-magnetite, additive calcium oxide powder and sodium bentonite, so that the alkalinity of the raw materials is 1.8 to 2.1, drying and drying respectively, and carrying out dry mixing and mixing; averagely distributing the mixed ore materials into two parts, adding water accounting for 3% to 4% of the total mass of the raw materials in the first part, adding water with the total mass of 6% to 8% of the total mass of the raw materials in the second part, uniformly mixing, and hermetically standing; when pelletizing is carried out, a first part of mineral powder isused in the forming period of the master ball, a second part of mineral powder is used in the growth period of the master ball, the water spraying amount before the growth of the master ball is controlled to be 1ml of 10g of ore powder to 2ml of 10g of ore powder of mineral powder, preventing adhesion between the master balls, and adding water for 40 seconds to 90 seconds at each time, so that thediameter of the prepared pellets ranges from 8mm to 12mm; and preparing raw ball braised material, drying, pre-xidizing and roasting, carrying out secondary high-temperature oxidation roasting to obtain high-alkalinity chromium-containing vanadium-titanium pellets.

The present invention discloses a preparation method of a straight hole channel magnetic material. The method comprises: first, freezing and drying silica sol directionally, and then, obtaining a straight hole channel silica bulk material after high temperature calcination; next, dipping the silica bulk in FeCl3, and taking out the substance for drying; and finally, reducing the dipped and dried silica bulk by using NaBH4 or H2, so as to obtain the straight hole channel magnetic bulk material. The method is simple and easy to implement. A finished product prepared by the method has a controllable structure and good stability and can be mass-produced. Compared with a conventional porous material, the magnetic material prepared by the method has an excellent straight hole channel structure, facilitating the material transmission in the hole channel, namely; and a hole structure has small motion resistance, so permeation resistance is reduced, and efficiency is increased.

The invention provides a preparation method of a metal surface energy-saving material. The preparation method comprises the following steps that (a) diatomite and ash-calcium powder are put in hot water of 100-150 DEG C for rinsing, organic impurities are removed, then drying is performed after rinsing with clear water, and mixed powder I of the diatomite and ash-calcium powder is obtained; (b) boron nitride, a water repellent and kerosene are added into the mixed powder I and are evenly stirred to obtain mixed powder II; (c) the mixed powder II is put in a ball mill for grinding till third powder III with the particle size of 120-200 microns is obtained; (d) the third powder III obtained in the step (c) and ethyl alcohol are put in a stirrer, stirring is performed at the rotating speed of 1500-2000 r / min for 40-50 minutes to obtain a mixture IV; (e) basic oil is added into the mixture IV and is stirred for 2-3 hours. The preparation method is simple in process and low in cost, does not include complicated operating steps, has no higher requirement for manufactured devices and is suitable for industrial large-scale production.

The invention discloses a method for making a bathtub for seamlessly connecting a cylinder body and a skirt. First, oil sludge is used to manufacture a hot-pressed film according to the shape formed with the cylinder body and the skirt, and cast lead and gypsum materials are used as male and female molds; Heat the acrylic plate to clamp it on the mold frame, soften it and then press it to make it stick to the mold surface; after hot pressing, take out the mold, clean it, and finally get the finished product.

The invention discloses a method for measuring p-hydroxybenzoate in cosmetics and relates to a method for measuring components in cosmetics. The method comprises the following steps: A, performing tested sample treatment, namely preparing the tested cosmetics into diluent; B, performing spectral measurement, namely B1, preparing a background spectrum set, B2, determining the standard spectrum of p-hydroxybenzoate, and B3, performing spectral measurement on the tested cosmetics; C, performing positive test and content measurement, namely C1, performing positive test, calculating an included angle between the merged matrix and the standard spectrum of p-hydroxybenzoate, when the included angle is larger than 0.15, the p-hydroxybenzoate is judged to be negative, and the spectrum of the tested cosmetics is recorded into the background spectrum database, and when the included angle is smaller than 0.1, the p-hydroxybenzoate is stored in the tested cosmetics, the sample is positive, and continuing, and C2 performing content measurement, namely deducing the standard spectrum of p-hydroxybenzoate from the spectrum of the tested cosmetics, thereby obtaining the actual content of the p-hydroxybenzoate. The method is high in analysis efficiency, low in operation strength, low in analysis cost, high in robustness and easy to popularize and use.

The invention belongs to the technical field of carbon dot materials, and particularly relates to a rosin-based carbon dot material, and a preparation method and an application thereof. Rosin resin acid is mixed with water, and a hydrothermal reaction is carried out to obtain the rosin-based carbon dot material. The rosin resin acid which is a natural biomass resource is used as a raw material, sothe raw material is rich and has a low price, and the prepared rosin-based carbon dot material has fluorescence emission properties when in a solid state and a liquid state, and has incomparable characteristics of CDs prepared from other biomass raw materials; and the CDs material is prepared by adopting the one-step hydrothermal synthesis process, the preparation method is simple and is easy tooperate, and the rosin-based carbon dot material prepared in the invention can be used for cell imaging and detection of metal Fe<3+> ions, and can be used for manufacturing a white light emitting diode (WLED) when in the solid state.

A rapid determination method for parabens in cosmetics, relates to a method for determination of ingredients in cosmetics, comprising the following steps: A. processing of samples to be tested; B. establishment of a background spectrum database: B1. acquisition Spectral data of cosmetic samples; B2. Obtain spectral data of components to be tested; B3. Convert data format; B4. Obtain the spectral data of the background without the component to be tested; B5. Dimensionality reduction of the background database; C. Obtain the standard spectral database v of parabens; D. Spectral measurement of the cosmetic sample to be tested; E. To be tested Determination of parabens content in cosmetic samples. The invention has high analysis efficiency, low operation intensity, low analysis cost, no need to accumulate a background database without components to be measured, can reduce machine time and reagent loss, has good robustness, and is simple in method, and is very suitable for the analysis of large batches of samples of the same kind Rapid analytical assay.

The invention discloses a tumbler type culture zone tidal pump aeration device and belongs to the technical field of solving a marine anoxic problem. Two tidal pumps are placed in a tumbler type device, and one pump is made to be constantly upright when the device is on the sea floor. The device has a simple structure and flexible design, the tidal pump consists of one segment of a 90-DEG elbow and one segment of a vertical pipe, a guide plate of the elbow portion makes a pump port constantly face the flow direction, and the horizontal tidal flow forms a down flow through the elbow to alleviate a hypoxia phenomenon in a culture zone to provide enough oxygen for benthic organisms.

The invention provides a high-purity battery-level manganese source which is manganese sulfide and / or manganese oxide, wherein a manganese sulfide XRD crystal phase is a pure gamma-phase and / or pure beta-phase similar-fibrid or claviform sulfide, and the appearance is pink, brownish red or brick red. The preparation method of the high-purity battery-level manganese source comprises the following steps of preparing a divalent manganese salt solution to the concentration of 5-50 degrees Be'; adding sulphurizing salt, and filtering to prepare a primary manganese salt solution; further adding a sulfide solution, and regulating pH to prepare a manganese sulfide filter cake; carrying out reverse osmosis washing to obtain a manganese sulfide crystal; beating, then controlling the temperature of manganese sulfide slurry to 50-100 DEG C, stirring, adding an acid source to the manganese sulfide slurry to react for 2-6 hours, carrying out acidolysis to prepare a manganese salt solution, wherein the manganese sulfide inside a system needs to be excessive during the acidolysis, and the excessive mass fraction of the manganese sulfide is controlled at 1%-10%; regulating the pH to 5.5-6.0, reacting for 2-6 hours, and then carrying out pressure filtration to obtain a high-purity battery-level manganese salt product. The manganese sulfide can not only be directly applied, but also be used for synthesizing different kinds of high-end manganese salt or manganese oxide by taking the obtained manganese sulfide as the high-purity manganese source.

The invention provides a self-repairing polyurethane elastomer without external stimulation and a preparation method thereof. The molecular chain of the self-healing polyurethane elastomer polymer without external stimulation contains acylhydrazone bonds. On the basis of self-healing polyurethane, liquid acid and solid acid are added to make the material undergo mechanical damage through the acylhydrazone bonds. Dynamic exchange reaction, without external acid stimulation, self-repair can be achieved at room temperature, the repair conditions are simple, and multiple repairs can be achieved. The polyurethane elastomer containing acylhydrazone bonds synthesized by the invention without external stimulation can realize self-repair after being cut and contacted along the cross section for 72 hours. The self-healing polyurethane elastomer without external stimulation is simple to prepare, the raw materials are readily available and the mechanical properties are excellent, which improves the application prospect of the self-healing polyurethane elastomer.

The invention relates to an electric furnace structure, and concretely relates to an electric furnace roll-over disrotatory quenching structure, which can mainly solve the problems of inconvenient material lift and automatic discharging of an internal quenching structure of the current electric furnaces. The quenching structure comprises a support, and also comprises a set disrotatory structure and a driving motor arranged at a same side of the support, and the disrotatory structure is formed by two disrotatory rollers and a link mechanism between two disrotatory rollers and a roll-over material lift rod arranged at the disrotatory roller. A traditional sander roller almost employs belt transmission to drive horizontal movement, the disrotatory roller having a simple and reliable structure, the link mechanism and the roll-over material lift rod realize the material lift and automatic discharging functions during a workpiece quenching process, compared with the current complex materiallift machines, the structure cost is reduced, a slip face is arranged at the roll-over material lift rod, when an upper half part face upwardly, the material lift function is realized, when a lower half part face downwardly, and automatic discharging is realized.

The invention discloses a process debugging method for mask plate equipment. A mask plate raw material is divided into several areas, and each area is provided with a cross, and the patterns to be tested by lithography equipment, developing equipment and etching equipment are respectively set On the cross on each area; expose the pattern in the first area, and obtain the actual accuracy error of the lithography machine through developing, etching, stripping, cleaning, and measurement processes, and debug the equipment parameters according to the measurement error; After the first test is completed, the mask material is cleaned and then glued; the position of the second exposure file is shifted, and the second exposure is performed, and then the pattern of the second area is tested; the present invention sets the cross The graphics setting and position alignment can effectively detect the graphics with the smallest precision, and the detection and debugging efficiency is higher.