7results about How to "No danger" patented technology

The application discloses a method for improving the synthesis efficiency and quality of alpha-hydroxy acid borneol and borneol. In view of the problems existing in the traditional borneol synthesis process, alpha-hydroxy acid is used instead of anhydrous oxalic acid as an esterification agent, one or more of boric acid, phenylboric acid, boron oxide and VB2 is used as a catalyst, and an acid anhydride is added, and the intermediate product alpha-hydroxy acid borneol is obtained by stirring reaction at room temperature. After the reaction is completed, the catalyst is filtered out by standing and precipitating, and the reaction product is washed to neutral with water. The monoterpenes by-product in the product is separated by water vapor distillation to obtain crude alpha-hydroxy acid borneol. The crude borneol is separated and purified by column chromatography to obtain refined alpha-hydroxy acid borneol. Finally, the borneol ester is saponified, and the borneol with a purity of more than 98% is obtained by water vapor distillation. The application can complete the reaction by stirring at room temperature, and there is no danger of heating, material flushing and explosion, and the total borneol yield can reach more than 45%, and the normal borneol accounts for more than 80% of the total borneol.

The present application belongs to the field of precision microfabrication, and discloses a microstructure substrate film forming method combining ultrasonic oscillation and doctor blade coating, comprising the following steps: positioning and fixing the microstructure substrate; improving the wettability of the microstructure substrate; removing the excess solution on the microstructure substrate and leveling the liquid film. The microstructure substrate is immersed into the solution in the ultrasonic instrument, the solution is oscillated by the amplitude and frequency of the ultrasonic wave, the contact angle of the solution at the bottom of the microstructure is reduced by the hysteresis effect of the contact angle, and the air layer at the bottom of the microstructure is removed by the cavitation effect of the ultrasonic wave, so as to enhance the wettability of the solution to the bottom of the microstructure. The wettability of the solution to the microstructure substrate is effectively improved, the problems of poor wettability of the solution to the bottom of the microstructure, multiple repetitive operations and long process in the existing single wet coating method are overcome, and the thin film with high coverage, ideal film thickness and uniformity is prepared on the microstructure substrate.

The utility model discloses a kind of game machines of simulated skipping, including game machine main body and the game machine base of being set in the front side of game machine main body, and the jumping detection component for detecting human jumping action is equipped on game machine base, and the display component for showing simulated skipping swing is equipped on the front side of game machine main body, and the control component for controlling display component work and receiving jumping detection component detection signal is equipped in game machine main body, simulated skipping swing is shown by display component, without holding entity rope, without big activity space, also there is no rope winding and the problem of causing danger, also can intelligently adjust exercise intensity and rhythm, can satisfy the demand of different age layer user.

The invention provides an intelligent speed regulation system and method for entering and exiting a ramp, a computer storage medium and a vehicle. Comprising an acquisition module used for acquiring vehicle and road parameters, a ramp recommended speed calculation module used for calculating a ramp recommended speed, a first acceleration module used for obtaining a first acceleration recommended speed value based on the vehicle and road parameters and the ramp recommended speed, and a second acceleration module used for obtaining a second acceleration recommended speed value based on the first acceleration recommended speed value. The second acceleration module is used for obtaining a second acceleration recommended speed value based on the vehicle and road surface parameters and the first acceleration recommended speed value; and the control module is used for controlling the vehicle to accelerate. According to the method, a more reasonable speed regulation scheme is provided for a driver according to the road condition of the actual ramp, and in the process of driving out of the ramp, the vehicle is accelerated quickly for the first time, so that the speed difference between the vehicle and other vehicles is reduced, the safety of the vehicle is ensured, and the risk of traffic accidents is reduced; and carrying out second acceleration and freely driving by the driver.

The invention belongs to the field of solar cells, and provides a preparation method of water-soluble NiOx nano-particles and a product and application of the water-soluble NiOx nano-particles, the NiOx nano-particles are prepared by using one or more of alcohol ether, alcohol amine, glycol and polyethylene glycol as surface ligands of nano-materials and providing water-based groups (-OH and-NH2) and binding sites for chelating In and Sn on ITO (Indium Tin Oxide), and the water-soluble NiOx nano-particles are used for preparing the water-soluble NiOx nano-particles. The nano-particle comprises a NiOx inorganic substance and an organic ligand on the surface of the NiOx inorganic substance. The prepared NiOx dispersion liquid has relatively high oxygen affinity, relatively good leveling property, excellent film-forming property and relatively good spreadability, adhesive strength and compactness on an FTO (Fluorine-doped Tin Oxide) substrate; and the material is stable in storage and has excellent light conversion efficiency in the aspect of device performance. The whole reaction is carried out at room temperature, so that the method is green, environment-friendly and pollution-free, and dangers are avoided.

The utility model relates to a kind of mould with acoustic handle centering precision injection molding assembly, comprising: upper die holder, the bottom end surface of the upper die holder is provided with upper die plate, the lower portion of the upper die plate is provided with lower die plate, the outside of the lower die plate is provided with lower die holder, molding cavity is provided between the upper die plate and the lower die plate, centering precision injection molding assembly is provided between the upper die holder, the upper die plate, the molding cavity;Before the acoustic handle in mould is cooled, it can be cooled without manual operation, there is no danger when manual operation;When forming acoustic handle, it can be quickly cooled, so that the forming cycle can be shortened.

The invention discloses a method for preparing a lithium metal water-soluble sample. The method comprises the following steps: dissolving ammonium acetate in glacial acetic acid to form a solution; and putting a solid lithium strip into the obtained solution, introducing water into a reaction system to dissolve the metal lithium, heating to remove redundant acetic acid and ammonium acetate, and digesting residual solid substances with aqua regia to obtain a metal lithium water-soluble sample. According to the method, the reaction for oxidizing the metal lithium into the lithium ions is highly controllable, no danger is generated, no extra metal ions are introduced into the metal lithium water-soluble sample, and the caused sample pollution is small.