31results about How to "No complicated steps" patented technology

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 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 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.

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 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.